Servopress-machine

FIELD: electrical engineering.

SUBSTANCE: invention relates to press forming equipment. Proposed machine comprises extrusion ram, servomotor, drive power supply and capacitor. The latter is connected in between power supply positive and negative channels. Said channels connect power supply and motor drive control section. Servomotor starts running on the basis of data on extrusion ram motion on feeding electric power for forming purposes. Machine can define if drive power supply voltage between aforesaid positive and negative channels is lower than servomotor induced voltage. If it is, data related with machine speed are corrected on the basis of data on extrusion ram motion.

EFFECT: stable operation.

18 cl, 7 dwg

 

BACKGROUND of INVENTION

The present invention relates to servopress machine, which includes a capacitor power source of the actuator results in movement of the actuator on the basis of information about the movement of the press stamp and carries out the operation of stamping by converting the rotational motion of the actuator in the vertical stroke of the press stamp through the drive mechanism of the press stamp.

Press machine using a servo motor, allows the user to easily install or select the movement of the press stamp (for example, in JP-A-2003-205395). In particular, the speed of the press stamp can be changed arbitrarily. Moreover, press the stamp can be temporarily stopped and the movement of the press stamp can be reversed by reversing the rotation of the servomotor. Therefore, it is possible to improve the suitability for stamped products, and to produce high quality products.

In such servopress machine control rotation of the motor controls the rotation of the servomotor on the basis of information about the movement of the press stamp (signals the movement commands)set in advance. The drive mechanism of the press stamp receives rotational energy generated by the rotation of the motor driving the press stamp. As the drive mechanism of the press stamp, was also known mechanisms of the eccentric drive, the rocker mechanism of the drive and the screw drive mechanism. Among them, from the point of view of structure or function was mainly used by the eccentric drive mechanism (crank mechanism or the structure of the eccentric shaft). Information about the movement of the press stamp is created, as the position of the press stamp corresponding to each quantum (time or angle).

6 illustrates the case of using a crank mechanism. The position of the press die is moved down from the upper dead point (the position of the Pu) to the bottom dead center position (position Pl) along the trajectory Rsp (i.e. information about the movement of the press stamp), and then moves up to the upper dead point. The speed of the press stamp indicated by the trajectory of Rsv.

In particular, press the stamp begins to move down in time t0 (0.0 sec) on the horizontal axis. The speed of the press stamp is reduced immediately before the time t1 to achieve a soft touch. Motor torque (trajectory Rmt), thus, reduced. Thus, there is a forming region (time t1-t2). Lower dead point is reached at time t2, and the upper dead point is reached at time t3 (about 3.6 seconds). In particular, one clock cycle (production cycle) is 3.6 seconds.

The rotation speed of the engine corresponds DV is the position of the press stamp (trajectory Rsp), shown at 6 Is indicated by the trajectory of the Rmr. For example, during operation deep drawing, the motor is driven at low speed to improve quality. The engine is accelerated immediately after molding (after time t2) along the trajectory acceleration Rmrin to achieve high speed (maximum speed Mrh).

As measures to improve the controllability of the speed it was proposed device (JP-A-2001-352773), which accurately estimates the load inertia, which changes during the course of work, by computation, etc. and which automatically adjusts the constant speed control.

Torque (trajectory Rmt) rapidly increases from a minimum value to a point in time t1 at which the molding load (load) reaches its maximum torque of forming Tmh. The torque of the engine is reduced after forming (time t2). The torque then increases due to the time required to accelerate the speed of rotation. The maximum torque Tms indicated by bold dashed line indicates the permissible maximum torque of the servomotor during moulding. The performance of the actuator and performance management section by the rotation of the engine, linking is the control section location/speed, the section current control, etc. are selected in accordance with the maximum torque.

A device (for example, JP-A-2007-282367) power source drive motor that generates a voltage of the drive power supply (DC) based on the voltage of the power source (AC). This type of device power source is usually used as a device power source servopress machine. 7, the device 110 of the power supply includes a rectifier circuit, a switching circuit, etc. and generates a voltage of the drive power supply (DC) on the basis of the input voltage of the power source (AC) from the system 100 power. The device 110 of the power source and section 33 of the regulation current (which forms part of the section control the rotation of the engine) connected across the positive and negative channels 120 power supply. A capacitor 130 is connected between the positive P-channel power supply and a negative N-channel power supply. The excitation current supplied from section 33 of the control current to the actuator 7.

Load (torque Rmt) servopress machine is increased in the field of moulding (time t1-t2) and decreases in the vertical stroke before and after the molding, as described above. Load changes servopress machines PTS is ery high compared with other industrial machines. In particular, the load changes during one production cycle (one cycle of the press stamp) is large enough. Therefore, the capacitance of the capacitor 130 is relatively large to achieve the function of smoothing the voltage of the drive power supply (voltage Vpn) and function coordination (condenser). The capacitor carefully examine and appropriately choose from the viewpoint of reducing the capacity of the device 110 of the power supply and system 100 of the power source, and reduce costs. In particular, the capacitor 130 releases a large amount of energy (voltage drive power supply) during molding and applies a voltage of the power source drive section 33 of the regulation current. Induced voltage of the servomotor 7 is designated as Vm.

When performing high-quality operations forming speed Rsv press stamp in the field of moulding is relatively less. The speed of the press stamp increase, as far as possible, throughout the area, from the viewpoint of productivity. In particular, the user performs the operation of stamping out the production site of different types of motion of the press stamp (trajectory Rsp). However, the movement of the press stamp is not chosen, taking into account the ratio between the capacities and characteristics of the section 33 to control the rotation of the engine, an actuator 7, is istemi 100 power source, the device 110 of the power supply, capacitor 130, etc.

In particular, the mismatch between the selected or predetermined movement of the press stamp and device features and characteristics leads to unstable operation. Moreover, such unstable operation may occur or may not occur, depending on experience and skills of the user. In particular, the causes of the instability can not be determined.

Therefore, a situation may arise in which the work must be stopped or when a malfunction or breakdown of the device. This leads to reduced productivity and increased production costs.

The INVENTION

According to the first aspect of the invention there is provided servopress machine, which includes a capacitor connected between the positive channel of the power source and the negative channel of the power supply that connect the device to the power source and the control section by the rotation of the motor causes the rotation of the servomotor on the basis of information about the movement of the press stamp, when the supply voltage of the drive power supply, and performs an operation of pressing, when converting the rotational motion of the actuator in the vertical stroke of the press stamp through the drive mechanism of the press stamp, and servopress-mA the ina defines whether the power source voltage of the drive between the positive channel of the power source and the negative channel of the power source is lower than the induced voltage of the servomotor, and corrects the data relating to speed, on the basis of information about the movement of the press stamp, when servopress machine has determined that the voltage of the drive power supply is lower than the induced voltage.

According to the second aspect of the invention provides servopress machine, which includes a capacitor connected between the positive channel of the power source and the negative channel of the power supply that connect the device to the power source and the control section by the rotation of the motor causes the rotation of the servomotor on the basis of information about the movement of the press stamp, when the supply voltage of the drive power supply, and performs the operation of punching, when converting the rotational motion of the actuator in the vertical stroke of the press stamp through the drive mechanism of the press stamp, and servopress machine contains:

the means of calculating the power source voltage drive, which calculates the power source voltage of the drive between the positive channel of the power source and the negative channel of the power source using the information about the motion of the press-sh is Impala;

the means of calculation of the induced voltage, which calculates the induced voltage of the servomotor using the information about the movement of the press stamp;

the means of determining the status of the low voltage level, which determines whether the calculated voltage of the drive power supply when a predetermined time is lower than the calculated induced voltage corresponding to the voltage of the drive power supply; and

- the tool command output correction, which outputs a command correction for data related to the speed contained in the information about the movement of the press stamp, when the vehicle state detection voltage low level was determined that the calculated voltage of the drive power supply is lower than the calculated induced voltage.

According to a third aspect of the invention provides servopress machine, which includes a capacitor connected between the positive channel of the power source and the negative channel of the power supply that connect the device to the power source and the control section by the rotation of the engine, results in rotational movement of the servomotor on the basis of information about the movement of the press stamp, when the supply voltage of the drive power supply, and performs the operation of punching, when converted is adowanie rotational movement of the actuator in the vertical stroke of the press stamp through the drive mechanism of the press stamp, and servopress machine contains:

the detecting voltage of the drive power supply that detects the power source voltage of the drive between the positive channel of the power source and the negative channel supply;

the means of detection of the induced voltage, which detects an induced voltage of the servomotor;

the means of determining the status of the low voltage level, which determines whether the detected voltage of the drive power supply when a predetermined time is lower than the detected induced voltage corresponding to the detected voltage of the drive power supply; and

- management tool correction, which automatically corrects the data relating to the speed contained in the information about the movement of the press stamp, when the means for determining the state of the low voltage has determined that the detected voltage of the drive power supply is lower than the detected induced voltage.

BRIEF DESCRIPTION of DRAWINGS

Figure 1 is a block diagram for describing a first variant embodiment of the invention.

Figure 2 is a block diagram for describing operations according to the first variant embodiment of the invention.

Figure 3 is a temporary is iagram to describe the state before the correction according to the first variant embodiment of the invention.

Figure 4 represents a timing diagram for describing the state after the correction according to the first variant embodiment of the invention.

5 is a flowchart for describing operations according to the second variant embodiment of the invention.

6 represents a timing diagram for describing the example of the related art.

7 is a block diagram for describing device power supply according to the example related to the level of technology.

A DETAILED description of the VARIANT of the INCARNATION

The invention can provide servopress machine that can make adjustments to address the causes of instability before work. The invention may also provide servopress-machine, which can automatically make adjustments to address the causes of instability in progress.

In the analysis of the instability that occurs at the manufacturing site, you receive the tendency of instability, when it is desirable to achieve high-quality moulding for improving performance. For example, the initial acceleration, which increases the speed of the press stamp (engine speed: trajectory Rmr) at the initial stage in the area of the moulding (time t1-t2), shown in Fig.6, is carried out from the point in time when the hcpa is istia quality were reduced. For example, the allowable maximum rotation speed Mrh can be achieved at the initial stage increased by moving the start time of the trajectory Rmrin acceleration. However, because the technical requirements and characteristics of the servomotor 7, section 33 of the current control device 110 of the power supply and capacitor 130 are constant, the tracking is limited. The result is the phenomenon of reverse voltage.

In particular, section 33 of the regulation power supplies excitation current to generate motor torque (trajectory Rmt), including accelerating torque for the actuator 7 from the time t1. Since the drive power is covered by the power released from the capacitor (battery) 130, the amount of charge stored in the capacitor 130, decreases so that the voltage Vpn of the drive power supply gradually decreases. The voltage Vpn of the drive power supply gradually increases after the forming process (time t2) (i.e., torque forming eliminated). On the other hand, the induced voltage Vm of DC servo motor 7 is increased along with increase in angular velocity of the engine (the trajectory Rmr).

Therefore, the device power source using the output discharge of the capacitor (battery) 130, experiencing the phenomenon of reverse voltage (Vm>Vpn), which induc the automatic Vm voltage exceeds the voltage Vpn of the drive power supply in the field, in which the speed of the press stamp (engine speed) high.

In particular, the voltage of the drive power supply may become insufficient (mismatched), depending on such an installation, the movement of the press stamp, as the speed of the press stamp and the rotation speed of the engine. This creates an unstable job. However, the user is difficult to investigate and correct the cause of instability. The invention can eliminate instability due to manual or automatic adjustment of information about the movement of the press stamp.

According to one variant embodiment of the invention provides servopress machine, which includes a capacitor connected between the positive channel of the power source and the negative channel of the power supply that connect the device to the power source and the control section by the rotation of the engine, results in rotational movement of the servomotor on the basis of information about the movement of the press stamp when the supply voltage of the drive power supply, and performs an operation of punching when converting rotational motion of the actuator in the vertical stroke of the press stamp through the drive mechanism of the press stamp,

and servopress machine determines whether the voltage of the power source of the actuator between a positive source channel of Pete the Oia and the negative channel of the power source below than the induced voltage of the servomotor, and corrects the data relating to speed, on the basis of information about the movement of the press stamp, when servopress machine has determined that the voltage of the drive power supply is lower than the induced voltage.

According to this variant embodiment of the causes of the instability can be resolved before or during work. So smooth and stable operation of pressing can be achieved by increasing productivity.

According to one variant embodiment provides servopress machine, which includes a capacitor connected between the positive channel of the power source and the negative channel of the power supply that connect the device to the power source and the control section by the rotation of the engine, results in rotational movement of the servomotor on the basis of information about the movement of the press stamp when the supply voltage of the drive power supply, and performs an operation of pressing, when converting the rotational motion of the actuator in the vertical stroke of the press stamp through the drive mechanism of the press stamp,

and servopress machine contains:

the tool calculate the voltage of the drive power supply, which calculates the power source voltage of the drive between the positive channel of the power source and tricate inim channel power source using the information about the movement of the press die;

the means of calculation of the induced voltage, which calculates the induced voltage of the servomotor using the information about the movement of the press stamp;

- means for determining the state of the low voltage level, which determines whether the calculated voltage of the drive power supply when a predetermined time is lower than the calculated induced voltage corresponding to the voltage of the drive power supply; and

- the tool command output correction, which outputs a command correction for data related to the speed contained in the information about the movement of the press stamp, when the vehicle state detection voltage low level was determined that the calculated voltage of the drive power supply is lower than the calculated induced voltage.

According to this variant embodiment of the correction for eliminating the causes of unstable operation can be performed prior to operation. Thus, it is possible to obtain smooth and stable operation of pressing with simple controls.

According to one variant embodiment of the invention provides servopress machine, which includes a capacitor connected between the positive channel of the power source and the negative channel of the power supply that connect the source device PI the project and section control the rotation of the engine, results in rotational movement of the servomotor on the basis of information about the movement of the press stamp when the supply voltage of the drive power supply, and performs an operation of punching when converting rotational motion of the actuator in the vertical stroke of the press stamp through the drive mechanism of the press stamp,

and servopress machine contains:

the detecting voltage of the drive power supply that detects the power source voltage of the drive between the positive channel of the power source and the negative channel supply;

the means of detection of the induced voltage, which detects an induced voltage of the servomotor;

- means for determining the state of the low voltage level, which determines whether the detected voltage of the drive power supply when a predetermined time is lower than the detected induced voltage corresponding to the detected voltage of the drive power supply; and

- management tool correction, which automatically corrects the data relating to the speed contained in the information about the movement of the press stamp, when the vehicle state detection voltage low level was determined that the detected voltage of the drive power supply is lower than obnarujenno the induced voltage.

According to this variant embodiment of the correction for eliminating the causes of unstable operation can be automatically carried out during the work. Thus, it is possible to obtain smooth and stable operation of pressing when additional light control.

The above servopress machine can correct the data relating to speed, by reducing the induced voltage to a value lower than the power source voltage of the drive.

The above servopress machine can correct the data relating to speed, by reducing the rotation speed of the servomotor.

The above servopress machine can correct the data relating to speed, by reducing the rate of acceleration of the rotational speed of the servomotor.

The above servopress machine can correct the data relating to speed, by delaying the time of acceleration of the rotational speed of the servomotor.

The above servopress machine can correct the data related to the speed by slowing down the rotation speed of the servomotor.

The first version of the incarnation

As shown in Fig.1-4, servopress machine 1 according to one variant embodiment of the invention includes means to calculate the voltage of the drive power supply, a means of calculating the induced e.g. the supply and the means for determining the state of the low voltage level, used in which section 21 of the CPU (central processing unit, CPU), non-volatile memory 22 and the memory 23, which can store data even when power is removed, and the tool output correction that uses a CPU 21, a nonvolatile memory 22, memory 23 and section 26 of the display, and outputs a command correction for data related to the speed contained in the information about the movement of the press stamp, when servopress machine 1 has determined that the calculated voltage Vpn of the drive power supply is lower than the calculated induced voltage Vm.

In particular, servopress machine 1 may determine whether the voltage Vpn of the drive power supply between positive and negative channels 120 (P and N) of the power source is lower than the induced voltage Vm of the actuator 7, and may adjust the data related to speed, on the basis of information about the movement of the press stamp, when servopress machine 1 has determined that the voltage Vpn of the drive power supply is lower than the induced voltage Vm. This enables you to set the voltage Vpn of the drive power supply so that it is higher than the induced voltage Vm.

Servopress machine 1 includes a capacitor 130, which is connected between the positive channel P power source and a negative channel N power source, which is connected to the device 110 of the power supply and the section 30 to control the rotation of the engine (including section 33 of the current control). Servopress machine 1 results in rotational movement of the servomotor 7, on the basis of information about the movement of the press stamp, when the supply voltage of the drive power supply, and performs the operation of the press forming when converting rotational motion of the actuator in the vertical stroke of the press stamp through the drive mechanism of the press stamp.

Figure 1 is a drive mechanism of the press stamp formed crank mechanism 2 (the eccentric drive mechanism, which includes a crank shaft 3 (crank 4 block). Reversible rotation (forward rotation and reverse rotation of the crank shaft 3 can be adjusted by regulating the rotation of the servomotor 7 AC (alternating-current, AC), which is the rotational supports and connected directly to the bearing. The actuator 7 may be a DC servo motor DC (direct current, DC) or jet engine.

The crank shaft 3 and the actuator 7 can be connected indirectly via a gear wheel (speed reducer). Through the use of gears (speed reducer) can be applied under high pressure. The eccentric drive mechanism can be a design of the eccentric shaft.

Press the stamp 6 is attached to the main body frame so that the press RAM 6 can slide vertically. the Congress, the RAM 6 is in contact with the balancing device. Press the stamp 6 can be actuated vertically 5 through the connecting rod by rotation of the crank shaft 3. Top dead center is the position of the Pu, as shown in figure 3 and 4, and the lower dead point is the position of the Pl. The mold includes an upper mold on the side of the press die 6 and the lower mold on the side of the punch plate (not shown).

Encodes 8 device connected to the servomotor 7 AC, includes a plurality of optical slits and optical detector in principle, and outputs the rotation angle (the rotation angle of the crank) theta actuator 7 (crank shaft 3). In this variant embodiment of the encoder 8, the device includes a Converter (not shown), which converts the rotation angle theta (pulse signal) to the vertical position (pulse signal) of the press die 6, and outputs the vertical position of the press die 6.

The detectors 9 and 140 voltage, shown in figure 1, will be described later with reference to the second embodiment.

Figure 1 shows the complete configuration servopress machine 1, and the panel 20 control pressure includes a CPU 21, a non-volatile memory 22 (e.g., permanent memory ROM and hard disk drive HDD), a memory 23 (e.g., flash random access memory, RAM), which can with what ranati data even if it was disabled, the touch panel 24, which functions as a processing 25 section, section 26 of the display and, for example, the interfaces 27 and 28. Rotation of the actuator 7 can be adjusted by generating a command signal movement Smtn on the basis of the control program, the operation of pressing, stored in the memory 22, and information MTN network (messaging) about the movement of the press stamp and by output commands motion on section 30 controls the rotation of the engine, resulting in a press stamp 6 can be moved in the direction of up/down. In figure 1 the elements related to the transfer device and the workpiece, etc. are omitted.

As shown in figure 3 and 4, information about MTN movement of the press stamp (P, t) represents the position information of the press stamp (trajectory Rsp), which indicates the time t and position P of the press die 6. Information about MTN movement of the press stamp can be set and entered by using the manufacturing section 25 (for example, funds 25Pt, installation misleading information about the position of the press stamp, shown in Figure 1. Information about MTN movement of the press stamp, which has been set is stored in the field 22mtn information about the movement of non-volatile memory 22, resulting in information about MTN movement of the press stamp, you can selectively be used in the future. Information about MTN magic cube MOV and stamps, selected to the pressing operation, is loaded into the memory 23.

In this variant embodiment, the information about MTN movement of the press stamp (P, t) keeps information about the motor speed (trajectory Rmr), shown in figure 3 and 4, which is converted and generated on the basis of the position information of the press stamp (trajectory Rsp). Information about the motor speed (trajectory Rmr) is calculated on the basis of information about the speed of the press stamp and characteristics of the crank mechanism 2. Data related to speed, information contained in MTN on the movement of the press stamp (data forming), are related to the speed of the press stamp and the speed of rotation of the engine.

The signal Smtn motion commands, shown in figure 1, is generated based on the rotation speed of the engine or information about the rotation speed of the engine, and displays, for example, in the form of a pulse signal. Section motion commands, which used the CPU 21, the non-volatile memory 22 and the memory 23, which can store data even when power is switched off, has the structure of a pulse output signal on the situation.

In particular, when he was selected desired information about MTN movement of the press stamp (trajectory Rsp) or set using the processing section 25, section motion commands displays the signal Smtn is the commands themselves of section 30 controls the rotation of the engine, on the basis of a control program operation pressing (control program generation/output commands motion). For example, when the engine speed is 120 rpm, the number of pulses coming from the encoder device 8 per rotation (360 degrees)is 1000000, and the output cycle time is 5 MS, the number of output pulses per cycle (5 MS) is 10000 (=(1000000×120)/(60×0,005)). In particular, the engine speed can be changed by adjusting or varying the number of pulses per time cycle.

In section 30 controls the rotation of the engine, which took the signal Smtn motion commands, the comparator 31 compares the position command signal movement Smtn (set value with the actual position signal press stamp (signal f feedback)detected 8 encoding device to generate and output deviations position.

The control section position, which forms part of the section 32 controls the position/speed summarizes the input signal variance provisions and multiplies the summed signal of the deviation of the position gain circuit positioning, to generate and output speed signal. The speed comparator compares the speed signal with the output signal of the speed component of velocity is of ignal f), coming out of the encoder 8 devices (speed detector), to generate and output signal of the speed deviation. Section speed control, which forms part of the section 32 controls the position/speed multiplies the input signal of the speed deviation in the gain loop positioning to generate the command signal voltage and outputs the command signal circuit section 33 of the regulation current (amp). The command signal current, essentially, is a signal of the engine torque.

Section 33 of the current control generates a signal output phase current by using the voltage of the drive power supply voltage Vpn)supplied from the device 110 of the power supply and capacitor 130. Section 33 of the regulation current also generates and outputs a signal of the deflection current. PWM signal (pulse-width modulation, PWM) is generated from each signal deviation phase current due to PWM control and pulse width modulation. Control switch (on/off) is performed using each PWM signal for output phase currents U, V and W of the motor drive. Thus, it is possible to control the rotation of the servomotor 7.

In figure 1, the device 110 of the power supply includes a rectifier circuit, a switching circuit, etc. (mode Converter). The device 110 of the power supply generates voltage and the source DC power actuator based on the voltage of the power source AC taken from the system 100 to the power source. The smoothing capacitor 130 is connected between the positive and negative channels 120 (P and N) of the power source connecting device 110 of the power source and section 33 of the current control using the method of the inverter. The capacitor 130 is formed using an electrolytic capacitor. It should be noted that the capacitor 130 is not limited to this. In the course of forming a large number of power create torque overlaps the power released from the capacitor 130 having a matching function.

The tool calculate the voltage of the drive power supply is formed by a memory 22, which stores the control program calculating the voltage of the drive power supply, a memory 23, in which the downloaded data, and a CPU 21 that executes the control program calculating the voltage of the drive power supply. The tool calculate the voltage of the power source of the drive calculates the voltage Vpn of the drive power supply between the positive P-channel power supply and a negative N-channel power supply using the information about MTN movement of the press stamp (trajectory Rsp) (ST12 figure 2). The calculated voltage Vpn of the drive power supply is stored in the tool 23Vpn storage voltage of the drive power supply, is provided in figure 1 in the form of a data voltage of the drive power supply, which correspond to the time t.

The voltage Vpn of the drive power supply is the voltage on the capacitor 130. The voltage Vpn of the drive power supply is lowered by the release of supply current, which corresponds to the torque T generated by the servomotor 7. Torque T applied to the servomotor 7 is a sum of the torque Tj required for rotation of the inert body J directly connected to the shaft of the servo motor, torque Tm, which accelerates the load (for example, press the stamp), and torque Tg, which balances the force of gravity G, is applied to the load. In particular, the voltage Vpn of the drive power supply can be calculated from the torque T in accordance with the information about MTN movement of the press stamp (trajectory Rsp), and constants (for example, the capacitor 130), using time t as a General member.

The means of calculating the induced voltage is made the same way as the tool calculate the voltage of the drive power supply. The means of calculating the induced voltage calculates the induced voltage of the servomotor 7, using information about MTN movement of the press stamp (e.g., motor speed) (ST13). The calculated induced voltage Vm is stored in the tool 23Vm data storage on the Indus the new voltage in the form of data on induced voltage, corresponding to the time t. The time t occurs at a predetermined time (sampling time). The time t is the same time as when calculating the voltage Vpn of the drive power supply.

Induced voltage Vm is set to a value proportional to the speed of rotation of the servomotor 7. Induced voltage Vm can be calculated using the speed of the press stamp (i.e., the engine speed (trajectory Rmr)), on the basis of information about MTN movement of the press stamp and constant engine (for example, a constant induced voltage constant and torque).

In this variant embodiment of the means 23Pt data storage formation (defined memory area 23 may be provided from the viewpoint of ease of handling and high speed of the process. Information about MTN movement of the press stamp stored in the field 22mtn traffic information may be stored directly in the tool 23Pt data storage formation, or data about the molding obtained by converting information about MTN movement of the press stamp, you can store (or copy) in the tool 23Pt data storage stuffing. A means of storing data forming may also serve as the field 22mtn information about the movement.

Data about stuffing can contain only the position of the Congress-stamp (trajectory Rsp). In this variant embodiment, the data of the moulding contain the position of the press stamp (trajectory Rsp) and engine speed (trajectory Rmr) in the field of moulding (time t1-t2) and the following area (time t2 - t232), shown in figure 3 and 4. The aim is to speed up and facilitate the correction process data related to speed. Motor torque (trajectory Rmt), the voltage Vpn of the drive power supply (trajectory Rcv) and induced voltage Vm (trajectory Rmv) is also stored in the storage medium data stuffing.

Data about stuffing you can display section 26 to display the advanced graphical format (Figure 3 and 4). The aim is to facilitate the correction process data related to speed (for example, engine speed (trajectory Rmr)) (details will be described later). Adjusted data related to speed, are reflected in the information about MTN movement of the press stamp stored in the memory 22mtn. Subsequent pressing operation is performed on the basis of information about MTN movement of the press stamp, which reflects the adjusted data related to speed.

A means of determining the state of the low voltage determines whether the voltage Vpn of the drive power supply, calculated during a predetermined measurement time (t) below, than the calculated induced voltage Vm (i.e., the state with a low voltage level). A means of determining the state of the low voltage trigger at step ST14 in figure 2. For example, the means for determining the state of the low voltage level determines that the state at time t2 figure 3 is a state with a low voltage level ("YES" at step ST14). A means of determining the state of the low voltage level determines that the state at time t2 figure 4 is a state with a high voltage level ("NO" at step ST14). It should be noted that the method of determining this is not limited. For example, the means for determining the state of the low voltage level may determine the status of the low voltage level or state with a high voltage level when the calculated difference (Vcd (=Vm-Vpn)) greater than or equal to a pre-defined difference (Vsd).

You may find that it is impossible to reliably determine on the basis of the previously defined that constantly occurs the phenomenon of reverse voltage. In this variant embodiment provides a validator reverse voltage used in which the CPU 21, the non-volatile memory 22 and the memory 23, which can hold data even when the power is off. Checker reverse voltage counts the number of the PTO is tov time (estimated value) n, in which the means for determining the state of the low voltage level determined appearance (ST15) state with a low voltage level, and determines the occurrence of the phenomenon of reverse voltage when the estimated value of n is greater than or equal to the number N set in advance. This tool is also applied to a case of using a method for determining the comparison of the above-mentioned difference.

The tool output adjustment command displays the command correction for data related to speed, on the basis of information about MTN movement of the press stamp, when the means for determining the state of the low voltage determined that the calculated voltage Vpn of the drive power supply is lower than the calculated induced voltage Vm ("YES" at step ST14). The tool output correction formed by the CPU 21, the nonvolatile memory 22, memory 23 and section 26 of the display. The tool output adjustment commands operate on the steps ST17 and ST18 in figure 2.

Adjustment command display section 26 to display. It should be noted that the command correction can be displayed by using sound, etc.

Data related to speed, adjust by reducing the rotation speed of the servo motor 7 so that the induced voltage Vm of the motor is lower than, for example, the voltage Vpn of the drive power supply. Induced e.g. the provision Vm engine can be reduced to values lower than the voltage Vpn of the drive power supply, by reducing the absolute value of the angular velocity of the engine, reducing the acceleration rate of the engine speed or delaying the time of the beginning of the acceleration of the rotational speed of the engine without changing the acceleration rate of the motor speed. The rotation speed of the engine can temporarily slow down, depending on the situation. The above method increases the time required to increase the engine speed to the maximum speed Mrh, shown in figure 3 and 4.

In this variant embodiment the information about MTN movement of the press stamp set using tools 25Pt input/jobs before trial or before the pressing operation. For example, information about MTN movement of the press stamp set in the P position stamp at each moment of time t. Given the discrete information display section 26 to display a continuous trajectory Rsp (see figure 3). Information about the motor speed (trajectory Rmr) and information about the torque engine (trajectory Rmt), the corresponding information about MTN movement of the press stamp is automatically generated (converted), displayed and stored in memory 23Pt. Information about the rotation speed of the engine and information about the torque of the engine is also stored in memory 22mtn. INF is rmatio MTN on the movement of the press stamp similarly display when selecting information about MTN movement of the press stamp, stored in memory 22mtn.

Figure 3 information about MTN movement of the press stamp, created in the moment, is designed so that the press RAM 6 is moved down from the upper dead point Pu (time t0) at high speed, which is reduced to such a speed, so that at time t1 (approximately 1,4 sec) was a soft touch, and reaches the lower dead point Pl at time t2 (after about a 2.4 sec) after passing through the field of moulding (time t1-t2). Then press the RAM 6 moves upward with speed and reaches the upper dead point Pu at time t3 (approximately 4,1 sec). Press the RAM 6 moves up and down outside the region forming with the maximum speed Mrh an actuator 7, except for phase and acceleration phase of deceleration.

To improve performance, assuming that the quality of moulding is satisfactory, the speed of the press stamp (i.e. engine speed) increase immediately after time t1 and reaches a maximum speed Mrh immediately before time t2 (time t12). Acceleration is 0.9 seconds from the time t1 (about 1.4 seconds) until time t12 (approximately 2.3 seconds). Allowable maximum speed Mrh support point-in-time t232 (about 3.6 seconds). In particular, information is MTN on the movement of the press stamp was created (selected) thus, to the production cycle (time t0-t3) was 4.1 seconds.

At this stage, three pieces of information (the trajectory of the Rsp, the trajectory of the Rmr and the trajectory Rmt) are displayed in section 26 of the display. After the release of the diagnostic commands stability control reading, which used the CPU 21, the non-volatile memory 22 and the memory 23, which may contain data even when the power is off, it reads the information about MTN movement of the press stamp at a predetermined timing ("YES" at step ST10 figure 2) (ST11). The tool calculate the voltage of the power source of the drive calculates the voltage Vpn of the drive power supply, and a means of calculating the induced voltage calculates the induced voltage Vm (ST12 and ST13).

The calculated voltage Vpn of the drive power supply and the calculated induced voltage Vm shown in comparative form (trajectory Rcv and trajectory Rmv shown in Figure 3). Figure 3 the phenomenon of reverse voltage at which the induced voltage Vm is greater than or equal to the voltage Vpn of the drive power supply occurs from the point in time immediately before the time t12. However, the phenomenon of reverse voltage may not be recognized when determining the naked eye.

Therefore, a means of determining the state of the low voltage level determines what voltage is e Vpn drive power supply at time Ti, contained in the data about the voltage of the drive power supply (trajectory Rcv), lower than the corresponding induced voltage Vm contained in the data of induced voltage (trajectory Rmv) ("YES" at step ST14). Then directly injected into the work checker reverse voltage. In particular, the calculation of the current determination "YES" is added to the estimated n (ST15).

If the estimated value of n is greater than or equal to N (i.e. the state with a low voltage level consistently appeared N times) (YES in step ST16), the tool output adjustment command displays the command correction for information about MTN movement of the press stamp (for example, data related to speed) (ST17 and ST18).

Command correction display section 26 to display to attract attention. For example, a message "to Reduce the speed of the press stamp to address the causes of instability" (ST18).

After the tool determine the status of low voltage determined that the voltage Vpn of the drive power supply is higher than the induced voltage Vm contained in the data about the induced voltage (the state with a high voltage level (i.e. normal)) ("NO" in step ST14), shows, for example, the message "Stable operation can be performed" (ST18).

The program crashes p is the following, as the user has issued the final team (finishing operation) ("YES" at step ST19). The final operation is performed using the keys provided in the manufacturing 25 sections. Offer "program completed" means that the process is protected from return to step ST10. It should be noted that the last graph and the message it is possible to continuously display section 26 to display.

A user who has been notified of the command correction via the display, defines the problem and the measures for its solution (i.e., adjustment). Figure 3 the engine speed (trajectory Rmr) begins to rise immediately after the time t1. The acceleration rate increases after approximately two seconds, and the rotational speed of the engine reaches maximum speed Mrh at time t12. Since such rapid acceleration of the engine increases the acceleration torque Tm, the load torque T of the engine) is rising rapidly. Information about torque of the engine indicated by the trajectory of the Rmt, which has a maximum torque Tmh engine in the form of peaks, and it decreases rapidly with time t12.

Therefore, the voltage Vpn of the drive power supply (trajectory Rcv) reaches the maximum voltage Vpnh at time t1 (about 1.4 sec). The voltage Vpn of the drive power supply is reduced (donkey who is) is inversely proportional to the torque of the engine (the trajectory Rmt) in the field of moulding (load). The voltage Vpn of the drive power supply rapidly decreases after increasing the acceleration rate and create maximum torque Tmh engine. In particular, since the amount of energy supplied from the capacitor 130 to the actuator 7, increases rapidly, the voltage Vpn of the drive power supply is quickly reduced to the minimum voltage Vpnl.

With a continuous increase in the engine speed (trajectory Rmr) immediately after the time t1, after approximately 2.0 s, the induced voltage Vm (trajectory Rmv) is growing rapidly in proportion to the rotation speed of the engine and reaches a maximum voltage Vmh at time t12 (approximately 2.3 seconds). In particular, the phenomenon of reverse voltage (Vpn<Vm) occurs just before the point of time t12.

In particular, when using information about MTN movement of the press stamp (for example, the trajectory of the Rsp and the trajectory Rmr), specified or selected so that the production cycle was 4.1 seconds (=t3-t0), time (t1-t12)required to achieve maximum speed Mrh is too short.

Therefore, the user changes the data shaping (data related to speed)stored in the tool 23Pt (22mtn) data storage forming, by using the 25 Pt I/job information of the position of the press stamp (among the STW data entry molding) to address the causes of instability. The user reduces the rotation speed of the engine.

The above result in action by changing the data related to speed, information contained in MTN on the movement of the press stamp (for example, the P position of the press die 6 depending on time t). The adjusted engine speed (trajectory Rmr) is automatically generated (converted) to match the adjusted trajectory Rsp. It can also be applied to torque motor (trajectory Rmt). The result of the adjustments reflected in the information about MTN movement of the press stamp stored in the memory 22mtn (i.e. information about MTN movement of the press stamp partially adjusted).

As shown in figure 4, the rotation speed of the engine at time t12 (approximately 2,25 s) is reduced to a value (for example, Mrm (=Mrh×0,8)), lower than the maximum permissible speed Mrh. The acceleration rate decreases from time t1 (about 1.4 seconds) to time t2 (about 2.4 sec), compared with the rate of acceleration is shown in Figure 3 (before the correction). From the time t12 to the time t2 maintain constant speed (lower speed Mrm). In particular, there is a period of constant speed.

Acceleration rate (trajectory Rmrin) additionally decreases from time t2 until time 231 (approximately 3.2 seconds) so that d is permissible maximum speed Mrh is achieved at time 231. Allowable maximum speed Mrh support point-in-time t232 (about 3.7 seconds).

In the causes of instability can be eliminated without reducing significantly, the target of the production cycle (t3=4,1 sec), shown in Figure 3. Adjusted production cycle is equal to t3=4.2 seconds (see Figure 4). In particular, a smooth and stable operation of pressing can be achieved by reducing the production cycle of approximately 2%. This method eliminates the disadvantages of the example of this prior art (i.e. the economic burden required to change specifications and characteristics of the servomotor 7, section 33 of the current control device 110 of the power supply and capacitor 130, and the long period required to replace the device).

The user again makes the team diagnostic stability to verify the correction process. It then calculates the voltage Vpn of the drive power supply and the induced voltage Vm (ST12 and ST13), and displays the trajectory of the Rsp, the trajectory of the Rmr and the trajectory of the Rmt, on the basis of the partially corrected information about MTN movement of the press stamp. The voltage Vpn of the drive power supply and the induced voltage Vm (trajectory Rcv and Rmv) also appear in section 26 of the display (see Figure 4). This allows the user to visually verify that arrichiranno voltage Vpn of the drive power supply is not lower than the induced voltage Vm at each moment of time t.

For example, when after the first correction at time t is the state of the low voltage level, repeat a second or subsequent adjustment process and the validation process. When it is desirable to increase the difference between the voltage Vpn of the drive power supply and the induced voltage Vm (Vpn Vm) (operation tolerance voltage) or it is desirable to reduce the difference between the voltage Vpn of the drive power supply and the induced voltage Vm (productivity), the correction process and the verification process can be repeated.

Therefore, the phenomenon of reverse voltage can be avoided through the implementation of the production cycle (time t0-t3), shown in Figure 4 (after correction), close (for example, 4,15 s) to the production cycle (approximately 4,1 sec), shown in Figure 3 (before the correction).

According to the present variant embodiment, because data related to speed, based on information about MTN movement of the press stamp, adjusted, when the means for determining the state of the low voltage has determined that the voltage Vpn of the drive power supply is lower than the calculated induced voltage Vm, the causes of the instability can be resolved before or during work. So smooth and stable is inuu the pressing operation can be achieved along with improved performance.

Moreover, as provided by the tool calculate the voltage of the drive power supply, a means of calculating the induced voltage, the means for determining the condition of low voltage and the output medium adjustment command, and the command correction for data related to speed (motor speed)contained information about MTN movement of the press stamp can be displayed when the means for determining the state of the low voltage determined that the calculated voltage Vpn of the drive power supply is lower than the calculated induced voltage Vm, the correction that address the causes of instability, you can run before work. Therefore, it is possible to achieve smooth and stable operation of pressing with a simple conversion. Moreover, the data shaping (data related to speed) can be adjusted easily and properly.

Because the section of the display shows that the calculated voltage Vpn of the drive power supply is lower than the calculated induced voltage Vm, a user who is inexperienced in electrical engineering, can easily determine the situation. In the result of an inexperienced user can perform an operation of pressing the same way, like an experienced user.

As provided by the checker reverse voltage and determined that vicis the i.i.d. voltage Vpn of the drive power supply below than the calculated induced voltage Vm (i.e., the phenomenon of reverse voltage), when the low voltage is successively N times, the reliability can be improved.

Moreover, as the graph and the message displayed by means of the output adjustment, the user can be reliably notified of the team correction and can timely and appropriate manner to determine the details of the correction.

The second variant of the incarnation

This variant embodiment is the same as the first variant embodiment in that, as a basic configuration and functions (Fig.1-4). However, despite the fact that the first variant of the embodiment is designed so that the correction make on the basis of the work of the user who observes the display command correction, this alternative embodiment is designed so that the correction do automatically at runtime.

Description of items of identical items of the first variant of the embodiment 1 and the like), simplified or omitted.

As shown in figure 1, the detecting voltage of the drive power supply is formed from detector 140 voltage, connected between the positive P-channel power supply and a negative N-channel power supply (positive and negative channels 120 power supply), and detects e.g. the provision of Vpn drive power supply, equal to the voltage on the capacitor 130. The voltage Vpn of the drive power supply detected (ST21) at a predetermined timing ("YES" at step ST20 figure 5), is stored in the tool 23Vpn storage voltage of the drive power supply, memory 23, in the form of a data voltage of the drive power supply, which correspond to the time t.

The means of detection of the induced voltage is formed from the detector 9, the voltage provided on the channel of the power source connecting section 33 of the control current and the actuator 7, and detects the induced voltage Vm of the servomotor 7. Induced voltage Vm detected (ST22) at the same timing ("YES" at step ST20 figure 5), as the voltage of the drive power supply is stored in the tool 23Vm storage of the induced voltage, the memory 23, the data of the induced voltage, which corresponds to the time t. The data voltage of the drive power supply and the data of the induced voltage at time t are common.

A means of determining the state of the low voltage determines whether the voltage Vpn of the drive power supply detected at a predetermined timing (time t), is lower than the detected induced voltage Vm (i.e., the state with the lowest level of the em voltage), in the same way as in the first embodiment of the incarnation.

The management tool correction function, when the checker reverse voltage determined that a state with a low voltage level consistently emerged in N periods of time (i.e. detected voltage Vpn of the drive power supply is lower than the detected induced voltage Vm (i.e., the phenomenon of reverse voltage)) ("YES" at step ST25).

In particular, the control correction that uses a CPU 21, a non-volatile memory 22 and the memory 23, which can hold data even when power is switched off, corrects information about the movement of the press stamp (data related to speed), when the checker reverse voltage determined that the detected voltage Vpn of the drive power supply is lower than the detected induced voltage Vm ("YES" at step ST23 figure 4) (ST26).

The management tool message display that uses a CPU 21, a non-volatile memory 22 and the memory 23, which can hold data even when the power is off, displays the automatic correction section 26 (ST27) display, showing the user the details of the correction is automatically executed. For example, a message is displayed, the Movement of the press stamp was partially adjusted to troubleshoot nestabil the spine".

The management tool messages the display shows the message "Working stable, when the result of step ST23 received "NO" (ST27).

The program terminates when the user has issued the final command (command complete) ("YES" at step ST28). The program may be performed continuously during the operation of pressing.

In this variant embodiment, when the means for determining the state of the low voltage has determined that the voltage Vpn of the drive power supply that was detected (ST21), lower than the induced voltage Vm that was detected (ST22) ("YES" at step ST23 and "YES" in step ST25), the control correction corrects the data related to speed (the state with a low voltage level → high level voltage) (ST26).

Correction are the same as the correction performed manually by the user using the 25Pt input data forming in the first variant embodiment, and are performed automatically.

When the high voltage is not achieved by one correction, there are additional correction. This process is repeated automatically.

In particular, information about the movement of the press stamp (trajectory Rsp) is adjusted so that the difference between the voltage Vpn of the drive power supply and dozirovannym voltage Vm (Vpn Vm) was minimal, as far as the voltage Vpn of the drive power supply is lower than the value of the induced voltage Vm. In particular, information about the movement of the press stamp (trajectory Rsp) is adjusted while minimizing the production cycle (time t0-t3). The process of automatic correction has the advantage that the repetitive operation can be performed quickly and correctly. Performance can be maximized without increasing the load on the user.

The management tool display message displays (ST27) details of the adjustments in section 26 to display a message, along with the schedule shown in Figure 4. The correction is reflected in the information about MTN movement of the press stamp stored in the memory 22mtn (i.e. information about MTN movement of the press stamp partially adjusted).

According to this variant embodiment, as provided by the tool 140 detection voltage of the power source of the drive means 9 detection of the induced voltage, the means for determining the condition of low voltage and management tool correction and information about MTN movement of the press stamp (for example, data related to speed) can be adjusted, when the means for determining the state of the low voltage has determined that the voltage Vpn of the drive power supply in advance when ODA is divided by the countdown below, than the corresponding induced voltage Vm, the causes of the instability can be automatically eliminated in the course of work. Therefore, it is possible to achieve smooth and stable operation of pressing with additional relief treatment.

Moreover, as provided by the verifier of the reverse voltage and the phenomenon of reverse voltage detected voltage Vpn of the drive power supply and the detected induced voltage Vm is interrupted when a state with a low voltage level consistently appeared N times, it is possible to eliminate the influence of noise and the like, Thus, can be enhanced reliability.

The third variant embodiment of the

This variant embodiment is the same as the second variant of the embodiment, from the point of view of the basic configuration and function (1, 3, 4 and 5). However, while the second variant embodiment is designed in such a way that the resulting state with a low voltage level is determined by comparing the voltage of the drive power supply detected by the detection tool of the drive power supply, and the induced voltage detected by detecting the induced voltage, this alternative embodiment is designed in such a way that the resulting state with a low voltage level is determined by the ay comparing the voltage of the drive power supply and the induced voltage, calculated in the same manner as in the first variant embodiment, and the correction automatically.

Description of the same points as in the first and second variants of the embodiment is omitted. Steps ST21 and ST22 in the second variant embodiment (Figure 5) are replaced by the steps ST11 and ST12 in the first variant embodiment (Figure 2).

According to this variant embodiment can achieve the same effects as in the second variant embodiment, when the load on the equipment.

Because the invention can eliminate the factors of instability before or during the work, the invention provides a smooth and stable operation of pressing and greatly improves performance. Therefore, the invention is effective for various types of stamping.

Although we have described only some of the variants of embodiment of the present invention, specialists in the art can easily understand that in these embodiments, the embodiment of many possible modification without material departure from new doctrines and advantages of the present invention. Therefore, all such modifications should be included in the scope of the invention.

1. Servopress machine, which includes a capacitor connected between the positive channel of the power source and the negative channel of the power source, connecting history is nick and power section control the rotation of the engine, results in rotational movement of the servomotor on the basis of information about the movement of the press stamp when the supply voltage of the drive power supply and performs a stamping operation when converting rotational motion of the actuator in the vertical stroke of the press stamp through the drive mechanism of the press stamp, and servopress machine determines whether the power source voltage of the drive between the positive channel of the power source and the negative channel of the power source is lower than the induced voltage of the servomotor, and corrects related to the velocity data on the basis of information about the movement of the press stamp, when servopress machine has determined that the voltage of the drive power supply is lower than the induced the tension.

2. Servopress machine according to claim 1, which corrects the data relating to speed, by reducing the induced voltage to a value below the voltage of the drive power supply.

3. Servopress machine according to claim 2, which adjusts the data related to speed, by reducing the rotation speed of the servomotor.

4. Servopress machine according to claim 2, which adjusts the data related to speed, by reducing the rate of acceleration of the rotational speed of the servomotor.

5. Servopress machine according to claim 2, which adjusts the data related to the velocity, p is the delay time of the start of acceleration of the rotational speed of the servomotor.

6. Servopress machine according to claim 2, which adjusts the data related to the speed by slowing down the rotation speed of the servomotor.

7. Servopress machine, which includes a capacitor connected between the positive channel of the power source and the negative channel of the power supply connecting the power source and the control section by the rotation of the engine, results in rotational movement of the servomotor on the basis of information about the movement of the press stamp when the supply voltage of the drive power supply and performs a stamping operation when converting rotational motion of the actuator in the vertical stroke of the press stamp through the drive mechanism of the press stamp, and servopress machine includes a tool to calculate the voltage of the drive power supply, which calculates the power source voltage of the drive between the positive channel of the power source and the negative channel of the drive power supply with by using the information about the movement of the press stamp, the means of calculation of the induced voltage, which calculates the induced voltage of the servomotor using the information about the movement of the press stamp, means for determining the state of the low voltage level, which determines whether the calculated voltage of the drive power supply at a pre-determine the hinnon the countdown below, than the calculated induced voltage corresponding to the voltage of the drive power supply, and the output medium adjustment command, which outputs a command correction for data related to the speed contained in the information about the movement of the press stamp, when the means for determining the state of the low voltage determined that the calculated voltage of the drive power supply is lower than the calculated induced voltage.

8. Servopress machine according to claim 7, which adjusts the data related to speed, by reducing the induced voltage to a value lower than the power source voltage of the drive.

9. Servopress machine of claim 8, which adjusts the data related to speed, by reducing the rotation speed of the servomotor.

10. Servopress machine of claim 8, which adjusts the data related to speed, by reducing the rate of acceleration of the rotational speed of the servomotor.

11. Servopress machine of claim 8, which adjusts the data related to speed, by delaying the time of acceleration of the rotational speed of the servomotor.

12. Servopress machine of claim 8, which adjusts the data related to the speed by slowing down the rotation speed of the servomotor.

13. Servopress machine, which includes a capacitor connected between the positive channel istochnikovedenie and negative channel supply, connecting the power source and the control section by the rotation of the engine, results in rotational movement of the servomotor on the basis of information about the movement of the press stamp when the supply voltage of the drive power supply and performs a stamping operation when converting rotational motion of the actuator in the vertical stroke of the press stamp through the drive mechanism of the press stamp, and servopress machine includes a detecting voltage of the drive power supply that detects the power source voltage of the drive between the positive channel of the power source and the negative channel of the power source, a means of detection of the induced voltage, which detects an induced voltage of the servomotor, means for determining the state of the low voltage level, which determines whether the detected voltage of the drive power supply when a predetermined timing is lower than the detected induced voltage corresponding to the detected voltage of the drive power supply, and the management tool correction, which automatically corrects the data relating to the speed contained in the information about the movement of the press stamp, when the means for determining the state of the low voltage determined that the detected voltage is agenie power source of the drive below, than the detected induced voltage.

14. Servopress machine according to item 13, which adjusts the data related to speed, by reducing the induced voltage to a value lower than the power source voltage of the drive.

15. Servopress-machine 14, which adjusts the data related to speed, by reducing the rotation speed of the servomotor.

16. Servopress-machine 14, which adjusts the data related to speed, by reducing the rate of acceleration of the rotational speed of the servomotor.

17. Servopress-machine 14, which adjusts the data related to speed, by delaying the time of acceleration of the rotational speed of the servomotor.

18. Servopress-machine 14, which adjusts the data related to the speed by slowing down the rotation speed of the servomotor.



 

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EFFECT: manufacturing capabilities are enlarged.

11 cl, 7 dwg, 1 ex

FIELD: mechanical engineering.

SUBSTANCE: invention is attributed to equipment for material pressure-shaping. Hydraulic press comprises frame, moving transverse member, beam, upper and lower tools. The frame is made as top and bottom cross-members. Cross-members are interconnected by pillars. The press is fitted with additional hydraulic press. Additional press comprises upper transverse members, tie rods, cylinders with hydraulic fluid, pillars and lower transverse members. Additional press is mounted with possibility to transfer its force to moving transverse member via tie rods and upper transverse members. Furthermore additional press force transfer to lower tool is provided using pillars of additional press, lower transverse member and pins.

EFFECT: press dimensions reduction and durability improvement is provided.

8 dwg

FIELD: mechanics.

SUBSTANCE: casing of the high-capacity hydraulic press operating cylinder used at fluid pressures of up to 32 MPa comprises the walls and bottom welded together. The wall features thickness hw and is furnished with the support flange coupled with the former by a shaped moulding. The bottom features thickness hb=2 hw and is coupled with the wall inner surface by the moulding arranged along the radius. There is a hole to feed operating fluid into the cylinder arranged at the bottom centre. The said moulding is buried into the bottom for hbr=(0.3 to 0.4) hw to form a ledge on the bottom inner face with its size equal to that of the moulding hbr. The moulding radius equals (0.7 to 0.8) hw.

EFFECT: higher reliability with no increase in weight and sizes.

2 dwg

FIELD: machining by pressure.

SUBSTANCE: the invention is dealt with the field of machining by pressure and may be used in presses for pressing powder-shaped masses, in particular, the metal powder-shaped masses. The press contains at least one connecting rod, a crankshaft and a connected with it and capable to rotate gear with an eccentric crankshaft drive for driving the unit of the upper plunger. The gear is set in rotation at least by one engine using at least one worm gearing. The press is equipped with electronic control, which is supplied with a function of a reversing mode of operation of the crankshaft. At the press operation a run of the unit of the upper plunger is reversed shortly before reaching of the upper and-or the lower dead point of the eccentric crankshaft drive. The second alternative of operation of the press offers to regulate a run of the unit of the upper plunger so, that the lower dead point of the eccentric crankshaft drive is passing a short way. In result the invention ensures an increase of accuracy of produced pressed items and an over-all performance, and also an increase of the performance index of efficiency of the press operation and expansion of its operational capabilities.

EFFECT: the invention ensures increased accuracy of produced pressed items, over-all performance, increased performance index of the press operation efficiency and expansion of its operational capabilities.

15 cl, 2 dwg

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