Method and device to simulate tube bending

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming, particularly, to tube bending. Proposed method comprises the stage of computing, at least, one cycle of instructions related to, at least, one parametre of tube production process depending upon set of data on a tube and set of process data. At least, one 3D geometrical model of, at least, one tube bending machine and appropriate tools is produced governed by, at least, one production parametre derived from cycles of computed bending instructions. To comply with thus computed bending instructions, 3D and kinematic simulation of tube bending is performed, the tube being described by set of data on tube and bending performed by bending machine and appropriate mechanical tools described by appropriate 3D geometrical model. Possibility of producing tube by, at least, one bending machine and appropriate tools is checked up.

EFFECT: higher quality of tube bending.

14 cl, 6 dwg

 

The present invention relates to the field of bending pipes.

It finds its application in many fields, in particular in the field of aviation, which requires a high degree of accuracy in the manufacture of pipes and their installation in an aircraft.

In this case, the pipe should be understood as any transport element, which can deliver hydraulic fluid medium, the fluid pneumatic, fuel, water, etc.

It is further assumed that the tube consists of straight sections connected by a curved knees, the entire complex is designed as a single part, obtained by plastic deformation of the initially straight pipe. A set of pipes connected by means of fittings, denoted by the term "pipeline". Thus, the pipe is defined by the coordinates of its ends, the coordinates of its breaking points, which determine the position arched her knees, and the ratio between the radius of curvature of the knees and the diameter of the pipe.

These tubes can be made on pipe bending machines bending presses, the principle of which is based on the bending by winding the pipe around the tool that defines the radius of the bend using a roller, which moves in the plane and always in the same direction. Thus, the pipe polyculture serial curl, divided translational motions (always in the same direction), and rotation of the pipe around its axis, which are respectively for positioning a flexible and their direction.

In practice, the manufacturing process requires some restrictions on the minimum length of tangents between each fracture and in the implementation of arcs of a circle by deformation or bending. These constraints simultaneously own characteristics of the pipe, such as its material and its thickness, as well as the characteristics of the machines used for bending.

Therefore, difficulties arise in the design and manufacture of pipes connected in the design phase with the real possibility of its production and in the production phase with a choice of machines that can actually provide its manufacture.

Presently known devices for computer-aided design (CAD), which have a significant aid to the designer using three-dimensional modeling of pipes, which is the object of projection.

However, such devices CAD does not allow the designer to initially predict what kind of pipe bending machine and any associated mechanical tools can be used to correct the bending of the pipe, as defined above Crete is s.

Similarly, in the manufacture of such devices CAD does not allow the operator to initially confirm for new pipe-bending machine the combination of tubes defined by the selection criteria of the pipe, for example the criterion of the pipe material.

The present invention is to eliminate the above drawbacks.

It is intended to improve the design and manufacture of conveyor elements at the level of a design Bureau, and at the level of the production line.

In particular, the invention is in design mode is used to simulate the bending, allowing you to control the possibility of making empty or equipped with pipe relative to the available fleet, while the simulation result depends on the machinery available at the time of execution of this simulation, and varies in accordance with the aforementioned Park.

In production mode, it is intended to confirm the possibility of producing the selected bending machine the combination of pipes, identified based on their characteristics.

The object of the invention is a method for simulating bending tubes using at least one bending machine.

According to the invention, the simulation method includes the following steps:

- the floor is up, at least one set of data pipes associated with the determination of three-dimensional geometric model of bended tubes;

- get at least one set of process data associated with the parameters, at least one bending machine corresponding to the machine tools and/or pipe material;

- calculate at least one cycle commands bending associated with at least one parameter of the production pipe, depending on the thus obtained data set of pipes and a set of technological data;

- get at least one three-dimensional geometric model of at least one bending machine and associated mechanical tools according to at least one parameter of manufacture, obtained on the basis of cycles computed teams flexion;

according to the cycle calculated so teams flexion exercise and three-dimensional kinematic modelling of the process of bending the pipe, characterized by a data set of pipes, using pipe bending machine and associated mechanical tools, characterized by the corresponding three-dimensional geometric model;

- examine the possibility of making pipe using at least one bending machine and associated mechanical tools the instruments at the time produced in this way and three-dimensional kinematic modeling; and generate a set of result data associated with the possibility of making pipe thus simulated bending machine and corresponding mechanical tools.

This method greatly helps the designer in predicting the possibility of manufacturing a pipe with the selected bending machine. We are talking about aid in decision making both at the design stage and the production stage. Thus, it allows the designer to optimize the marking and tracing of the pipeline taking into account factors related to existing production capabilities at design time, taking into account the pipes that make up the pipeline, and allows the manufacturer to optimize the choice of vehicles from the existing fleet, which can ensure the production of this pipe.

Preferably, in case of negative result of the check to provide for changing at least one parameter dataset tube and repeat step simulation with a modified thus dataset pipes, which allows to optimize the design of the pipe depending on production resources.

Preferably also in case of a positive test result to provide automatic generation of at least one sequence of commands bending withdrawn from the cycle corresponding commands flexion and intended for thus simulated pipe bending machine, which allows to optimize the production of pipes with the help predict the possibility of manufacturing a pipe used at the design stage.

It is preferable to use the method for the Park from several tube bending machines and additionally carry out the following steps according to which:

- get at least one three-dimensional geometric model, at least for each pipe bending machine and associated mechanical tools mentioned Park according to at least one parameter of manufacture, obtained on the basis of the cycle is calculated so teams flexion; and

- repeat the simulation for each of the thus obtained three-dimensional geometric model to obtain at least one positive result, indicating the possibility of the manufacture of pipe by means of at least one bending machine and associated mechanical tools of the composition mentioned Park tube bending machines.

Thus, this method provides help in making decisions about short pipe bending machine and associated mechanical tools.

Preferably the step of obtaining a three-dimensional geometrical model of the bending machine and associated mechanical tools p is storate for each parameter, manufacturing, based on the series of commands of flexion.

The modeling stage can be applied in the design office, starting with phase determination pipes, and/or on the production line to prepare for the manufacture of pipes.

In practice, each set of data pipe contains information belonging to the unit, which includes information about the standard pipe material, outer diameter, inner diameter, the radius of the bend, the length of the compression required for installation of the fitting on the end of the No. 1 pipe, the length of the compression required for installation of the fitting on the end of No. 2 pipe, a description of the elements of the pipe, the number of data X, Y, Z, X, Y, Z end # 1, end # 2, and points of break of a pipe.

In turn, each set of technological data contains information belonging to the unit, which includes information about the standard machine, pipe material, pipe diameter, pipe thickness, the radius of the bend, the direction of bending, the minimum and maximum flexion angles, sizes, mutual position and movement of machine tools, pipe bending machine.

In turn, the parameters of the cycle commands bending contain information belonging to the unit, which includes information about the standard pipe, the pipe diameter, the radius forms a flexible, including simulated bending machines, the number of cycles bending machine, ID, mA the ins, the number of end-of-pipe, the carriage, the minimum rotation maximum rotation applied angle of flexion, theoretical angle of flexion implemented the radius of the bend.

The rotation is defined as the orientation of the pipe on the machine carried out by the rotation of the pipe around its axis to allow bending in a different plane or in the opposite direction of the previous bend.

In practice, the dataset contains the information belonging to the unit, which includes standard pipe, pipe diameter, radius, form flexible, the number of simulated bending machines, the number of cycles bending machine, machine ID, the number of end-of-pipe, stock bending relative to the first end margin of the bend relative to the second end, the flow of materials required to manufacture, the carriage, the minimum rotation maximum rotation applied bend, theoretical bending angle, the bending radius, theoretical distance between two nodes, the possibility of filing, the minimum rotation maximum rotation and the ability flexion.

It is advisable that the modeling process contained continuous mode without stopping the simulation when it detects a collision between three-dimensional geometric model of the pipe and three-dimensional geometric the model pipe bending machine and associated mechanical tools, including modeling, the corresponding sequence of flexion, starting from one or from the other end of the pipe, and allowing to obtain a file containing the result of the simulation.

It is also advisable that the simulation contains step-by-step mode, containing the stop simulation at each detection of a collision, stop the current simulation, the simulation for each end of the pipe, the opportunity to continue the current simulation position detection, analysis and visual inspection detected a collision, and the record of detected collisions in the result file and the elimination of the mentioned file on the screen.

The object of the present invention is also a device simulation of bending tubes using at least one bending machine, containing:

- processing means for obtaining a data set of pipes associated with the determination of three-dimensional geometric model of the bend pipe;

- collection tools to obtain at least one set of process data associated with the parameters, at least one bending machine corresponding to the machine tools and/or pipe material;

- calculation means for calculating at least one cycle commands bending associated, at least the one parameter of the production pipe, depending on the dataset pipes and from a collection of process data;

- means of obtaining at least one three-dimensional geometric model of at least one bending machine and associated mechanical tools according to at least one parameter of manufacture, obtained on the basis of the calculated cycle commands flexion;

- modeling tool, designed to implement, according to the cycle calculated thus commands bend, and three-dimensional kinematic modelling of the process of bending the pipe, characterized by a data set of pipes, using pipe bending machine and associated mechanical tools, characterized by the corresponding three-dimensional geometric model;

- checking tools to verify the possibility of manufacturing a pipe using a pipe bending machine and associated mechanical tools when done this way and three-dimensional kinematic modeling; and for the issuance of a set of result data associated with the possibility of making pipe thus simulated bending machine and corresponding mechanical tools.

The object of the present invention is a storage medium readable by a computer system, if necessary, completely or partially removable, the company and a CD-ROM or magnetic medium, such as a hard disk or floppy disk, or transmitted media, such as electrical or optical signal, characterized in that it contains commands of a computer program that allows the above-described method, when this program is loaded and perform using computer systems.

The object of the present invention is also a computer program recorded on the storage media, with this program contains commands that allow the above-described method, when this program is loaded and perform using computer systems.

Other distinctive features and advantages of the present invention will be more apparent from the following description with reference to the accompanying drawings, on which:

Figure 1 depicts a schematic view of the architecture of the device made with the possibility of implementation of the basic stages of the simulation method in accordance with the present invention.

Figure 2 - view of their work environment CAD software available in the design office, which shows the detection of a collision between three-dimensional geometric model of the bending machine and three-dimensional geometric model of the pipe during the simulation in accordance with the present invention.

Figure 3 - scheme description and structure fields, caracterizada data dataset pipes in accordance with the present invention.

Figa and 4B depict the scheme description and structure the data fields of the set of processing data in accordance with the present invention.

Figa and 5B scheme description and structure of the data cycle commands bending in accordance with the present invention.

Figa and 6V - scheme description and structure of the data set result data in accordance with the present invention.

As shown in figure 1, the user specifies the description of three-dimensional geometric model of the processed pipe.

To do this, the user can select these pipe or the pipeline by means of special functions or via the human/machine interface, using a system of computer-aided design, such as CATIA (trademark).

Preparing data pipe allows pre-processing and conversion to text format, which will be described in detail below, the data used for the simulation of bending and fabrication details.

For each simulation in accordance with the present invention and in accordance with his character, you can start the module 2 sample to obtain file 10, containing three-dimensional geometric characteristics of bare or equipped with a pipe.

When we are talking about include the pipe, additional file 12 allows to take into account data associated with the fittings, the plant and end-of-pipe, and to calculate the coordinates of the ends of the corresponding bare pipe.

Upon completion of this stage of preparation and design the user receives, thus, a set of 10 data pipes associated with the determination of three-dimensional geometric model of the bend pipe.

As shown in figure 3, file 10, associated with the data pipe, contains information belonging to the unit, which includes:

standard pipe SNT;

- material SNT;

- outer diameter CNT;

- inner diameter CNT;

- the radius of the bend SNT, which is identical for all the tribes of the pipe during bending tools do not change) and is expressed as a ratio to the diameter of the pipe (1, 6D/3D/5D);

- the length of the zone of compression required for installation of the fitting on the end of No. 1, CNT;

- the length of the zone of compression required for installation of the fitting on the end of No. 2, CNT;

description SNT elements of the pipe; and

the number CNT coordinates X, Y and Z relative to the end of No. 1 SNT, towards the end of No. 2 SNT and the coordinates X, Y and Z of the points of break of a pipe SNT.

Table representing the structure of the file 10, column (data) DO column "description" DES and column format FO. The "format" field FO can be in alphanumeric format And in digital format N, trigonometric format So

If file XML option SNT is not required.

In particular, the parameter CNT describes the type point, the cat is Roy tied coordinates (SNT, SNT, CNT). There are several of these types. The simplest case is shown below in the form of extracts from the XML file:

Parameter CNT essentially contains two subroutines TYPE and NUM. Parameter CNT is a parameter of type a (alphanumeric).

In this example, point type end or extremity indicate the end of the pipe, and the points of type "bend or break" point to the breaking point.

For simulation purposes bending the file being processed contains at least two points of type “extremity” and one point of type “break”.

Let us return to figure 1.

After receiving the file 10 pipe or concurrently with receiving the user determines at least one set of 20 process data associated with the parameters, at least one bending machine corresponding to the machine tools and/or material of the pipe.

File 20 allows the selection of the machine or to characterize each machine according to different criteria.

File 20 contains the process data, which are data associated with parameters related to pipe bending machines, to the appropriate tools (die, sponge, ruler, smoothing the folds), and pipe materials (standard material spring-back or elastic recovery).

In practice, the module 22 allows you to choose the scoop is Prosti technological data 20 of the application program, containing all the relevant data in a database (not shown).

As shown in figa and 4B, file 20, related to technological data contains information belonging to the unit, which includes:

- standard machine SNM,

the pipe material SNM,

- pipe diameter SNM,

- thickness of the pipe SNM,

- the radius of the bend SNM,

the direction of bending SNM,

- minimum SNM and maximum SNM the flexion angles,

- form flexible SNM,

- proportional SNM and permanent SNM the value of elastic recovery

the size, relative position and the possibility of moving mechanical tools (clamps, pot, sponge, smoothing wrinkles, ruler, roll) pipe bending machine - SNM-SNM.

On FIGU shows the file structure 20.

The table shown in figv used as follows.

If the pipe has a diameter 101,6 and the radius of the bend 1D, it can be accessed by car 1. If the diameter is equal to 12.7, and the radius of the bend is 3D, it can be obtained on the machine 2 or machine 3. For a diameter of 12.7 and the radius of the bend 3D pipes of aluminium of a thickness of 0.66 considered constant coefficient springback (elastic recovery) is 4, regardless of the considered machine. Ultimately, the machine 1 allows flexion with a maximum angle of 180° regardless of the ha is of acteristic pipe.

This data organization allows fast selection of cars in an existing Park and to get the items needed for the simulation, by sending a request to a file 20 through the filters.

Therefore, in the query result file 20 by the user, depending on the characteristics of the tube, defines one or more "initially suitable machine and the parameters of the bending associated with each of combinations of machine/pipe, for example:

- the length of the gripping jaws;

- the length of the device to smooth out wrinkles;

- the length of the line;

- applied factors springback (elastic recovery), etc.

This data set associated with each pre-selected pair of machine/pipe model in accordance with the present invention.

Let's return to figure 1.

After receiving a file, 10 data pipes and file 20 process data, the user can start the simulation of folding in accordance with the present invention.

At step 30 of the method in accordance with the present invention is provided for calculating at least one cycle of 35 teams associated with at least one parameter of the production pipe, depending on the thus obtained set of 10 data pipe and from a set of 20 process data.

Then get at least one three-dimensional geometric mod is eh 40, at least one bending machine and associated mechanical tools depending on at least one parameter 50 of manufacture, obtained from the calculated cycle 30 teams flexion.

According to the calculated cycle 35 teams bending method allows to produce three-dimensional and kinematic modeling 60 process of bending the pipe, characterized by a set of 10 data pipe, using pipe bending machine and associated mechanical tools, characterized by the corresponding three-dimensional geometric model 40.

Then check the possibility of making pipe using at least one bending machine and associated mechanical tools when done this way and three-dimensional kinematic modelling of 60; and generate a set of 70 results data associated with the possibility of making pipe using pipe bending machine and associated mechanical tools.

As shown in figa and 5B, the file LRA 35 has a structure STRU corresponding to the file structure 10 and 20 and contains information belonging to the unit, which includes:

standard pipe CHL1,

- pipe diameter CHL2,

the radius forms a flexible CHL3,

the number of simulated bending machines CHL4,

- the number of cycles of flexion mA the ins CHL5,

- machine ID CHL6,

- the number of end-of-pipe CHL7,

- the carriage CHL8,

- the minimum rotation CHL9,

- maximum rotation CHL10,

- applied bending angle CHL11,

theoretical bending angle CHL12, and

- implemented the radius of the bend CHL13.

For example, computing cycles 30 bending break in the following order:

1) calculating the thickness of the pipe SNM;

2) determining the proportional values SNM elastic recovery and permanent values SNM elastic recovery depending on the standard of pipe material SNM, pipe diameter SNM, the thickness of the pipe SNM and the radius of the bend SNM;

3) determination of the radius forms SNM and the length of the gripping jaws SNM depending on pipe diameter SNM and the radius of the bend SNM;

4) among the n machines (in this case n=CHL4) - identification of pipe bending machines, suitable for the manufacture of pipes depending on the diameter SNM;

5) determination of the parameters associated with each of the selected pipe-bending machines;

6) theoretical calculation of distances depending on the coordinates X, Y, and Z elements of the pipe SNT, CNT, CNT in two directions of bending. The distances are: the distance D associated with the distance between two points, the distance R, associated with the rotation CHL8 (that is, with rotation of the pipe around its axis), and the distance And associated with Teoret the economic angle CHL12.

You can also control the minimum length between flexion to undergo bending and squeezing sponges. This control involves the following calculation:

- calculation of realized radii CHL13 depending on the values of the elastic recovery of the radius forms CHL3 and from theoretical angle CHL12,

theoretical calculation of distances depending on the actual radius CHL13, namely, the distance L CHL8, which is the length of the straight part corresponding to theoretical length of the straight part, defined in three-dimensional geometric model of the pipe 10,

control of the lengths of the first and second straight parts, sufficient to compress,

control of the lengths of the straight parts, is strictly greater than the length of the jaws.

In case of confirmation for the selected machines produce other calculations:

- calculation of the distances L, R, A, corresponding respectively to the fields in the file 35, CHL8, CHL9, CHL10, CHL11, CHL12, in two directions of bending depending on the values proportional SNM and permanent SNM elastic recovery of the radius forms CHL3 and bend SNM and SNM,

- calculation of reserves CHR8, CHR9, required for bending, it should be noted that modeling of bending and possible collision has influence only the initial stock,

- initial stock depending on the length of the jaws,

- end stock in dependence on the length of the jaws, from the radius of the shape, the length of the line, if it is not removed, the length of the device to smooth out wrinkles SNM, from the depths of the clip SNM, from the inner diameter of the clamp SNM, from the inner diameter of the pipe SNT, the length of the mandrel SNM, indent mandrel SNM, from the last feed and sweep the last of the tribe, and

- calculation of the feed rate for the two directions of bending.

The dataset, obtained in the result of these calculations teams flexion 30, write to a text file 35, called LRA characterizing mainly the process data, which include filing L, radius R and bending A.

These data 35 are input to part modeling for the prevention of collision method in accordance with the present invention.

Depending on at least one parameter 35, obtained from the previous calculations 30, according to the method, do a search in the directory of the appropriate machines and tools. The aim is to get together a three-dimensional geometric data of the machine/tools 40 for modeling collision avoidance depending on the parameters associated with the manufacture of pipes.

Thus, after steps 30 and 40, the method provides data for the implementation of three-dimensional and kinematic modeling 60 process of bending the pipe, the nature of the organized set of 10 data pipe, using pipe bending machine and associated mechanical tools, characterized by a set of 20 process data.

After that, according to the method, carry out the kinematic modeling of flexion to control the production capability of the basic pipeline on the Park pipe-bending machines.

Thus, the method allows to determine the required sets and to identify unsuitable sets and, therefore, the presence or absence of collisions during the simulation.

Check pipes associated with collision warning, about the Park suitable machines and tools used is carried out in two directions of bending pipe and taking into account the effect of spring-back (elastic recovery) when bent.

This pipe bending machine naked tube display on the roll and the sponges, then the previously calculated 30 cycles of flexion restore the queue one after the other, taking into account the elastic deformation associated with the effect of spring-back.

For each of these operations, the simulation checks for collisions between three-dimensional geometric model of the pipeline 10 and three-dimensional geometric model of the bending machine 40.

Check also produce for tools, which often can be the cause of the collision, such as a simple swath is whether double roll during cornering and bending the lever during spring back when bent.

The simulation is carried out for both ends of the pipe, then repeat it for the totality of available pipe bending machines, characterized by sets of 35 received during the previous calculation.

The simulation allows to obtain the file of the 70 completed calculations, supplemented by the response of the model to detected collisions. This file can be applied to the respective pipe bending machine in production mode.

As shown in figa and 6B, the result file 70 has a structure STRU corresponding to the file structure 10, 20 and 35, and contains information belonging to the unit, which includes:

standard pipe CHR1,

- pipe diameter CHR2,

the radius forms a flexible CHR3,

the number of simulated bending machines CHR4,

- the number of cycles bending machine CHR5,

- machine ID CHR6,

- the number of end-of-pipe CHR7,

- supply of flexion relative to the first end CHR8,

- supply of flexion relative to the second end of CHR9,

- the amount of material required to manufacture, CHR10,

- the carriage CHR11,

- the minimum rotation CHR12,

- maximum rotation CHR13,

- applied bending angle CHR14,

theoretical bending angle CHR15,

- implemented the radius of the bend CHR16,

- theoretical distance between two nodes is CHR17,

- the possibility of filing CHR18,

the prob is the possibility of the minimum turning CHR19,

- maximum rotation CHR20, and

- ability to bend CHR21.

The simulation method allows you to automatically generate at least one sequence of commands flexion intended for thus simulated bending machine and obtained from the series of commands flexion 35 validated through simulation.

With regard to the design office, it can be deduced visual information about the possibility of manufacturing a pipe.

For example (figure 2), at the stage of design development in the case of a negative test result, that is, in the case of collision I between three-dimensional geometric model tube bending machines M1 and three-dimensional geometric model of the pipe T1 containing the end of the X1, the end of x2, knee C1 and knee C2, is provided for changing at least one parameter set 10 data pipe and the repetition stage of the simulation with the modified thus the data set.

In practice, the simulation method is repeated for each pipe bending machine to receive at least one positive result, indicating the possibility of the manufacture of pipe using pipe bending machine, part of the mentioned Park tube bending machines.

The user can continuously or incrementally to visually monitor various C is CLI curls for a more precise analysis.

During a collision is detected, the user can visually observe the image of the collision (figure 2) software V1 CAD tool, such as a program Catia, V5 release.

For example, running the simulation flexion exercise with the help of computer centers and icon in the toolbar CAD programs.

During the production run of the simulation of the bending can be performed in the application program design and production for inspection of the pipe relative to Park cars. This launch can be made using the button "avoiding collisions".

In the case of mass processing for a new machine running the simulation of the bending can be done by clicking "confirm" in the human/machine interface.

The dialog box allows you to visually monitor the simulation either in continuous mode or in step mode.

Motherboard software contains classic environment used in the field of computer aided design CAD.

1. The way of modeling the process of bending tubes using at least one bending machine, comprising the following steps:
obtaining at least one set (10) data pipes associated with the determination of three-dimensional geometric model of bended tubes,
receiving, what about the least one set (20) of process data associated with the parameters, at least one bending machine corresponding to the machine tools and/or material of the pipe,
calculating at least one cycle (30, 35) teams flexion associated with at least one parameter of the production pipe, depending on the thus obtained set of (10) data pipe and set (20) of process data,
receiving at least one three-dimensional geometric model (40), at least one bending machine and associated mechanical tools according to at least one parameter (50) manufacture, obtained on the basis of cycles (30, 35) are computed teams flexion
the implementation according to the cycle (35) is calculated thus commands bending and three-dimensional kinematic modelling of the process of bending the pipe in accordance with a set of (10) data pipe using pipe bending machine and associated mechanical tools, define the corresponding three-dimensional geometric model (40),
check the possibility of manufacturing a pipe using at least one bending machine and associated mechanical tools during produced in this way and three-dimensional kinematic modelling and the provision of a set of (70) data Raza is Tata, associated with manufacture of the pipe thus simulated bending machine and corresponding mechanical tools.

2. The method according to claim 1, in which in the case of a negative test result is provided by changing at least one parameter of the set (10) data pipe and the repetition stage of the simulation with the modified thus dataset pipes.

3. The method according to claim 1, wherein in case of a positive test result automatically generating at least one sequence of commands bending withdrawn from the cycle corresponding commands flexion and intended for thus simulated bending machine.

4. The method according to claim 1, in which when using the Park from several tube bending machines additionally perform the following steps:
receiving at least one three-dimensional geometric model (40), at least for each pipe bending machine and associated mechanical tools according to at least one parameter obtained on the basis of the cycle is calculated so teams flexion, and
repeat the simulation for each of the thus obtained three-dimensional geometric models (40) to obtain at least one positive result, pokazivaushee the possibility of making tubes using, at least one bending machine and associated mechanical tools of the composition mentioned Park tube bending machines.

5. The method according to claim 4, in which the modeling stage is used at the stage of design development, from phase determination pipe.

6. The method according to claim 1, wherein the method is used on the production line to prepare for the manufacture of pipes.

7. The method according to claim 1, in which use an array containing information about the standard pipe (SNT), material (SNT), outer diameter (SNT), inner diameter (SNT), the radius of the bend (SNT), about the length of compression required for installation of the fitting on the end of the No. 1 pipe (SNT), about the length of compression required for installation of the fitting on the end of No. 2 pipe (SNT), description of the elements of the pipe (SNT), the number of coordinates X, Y, Z (CHT9), the coordinates X, Y, Z end No. 1 (SNT), end No. 2 (SNT) and breakpoints pipe (SNT), and each set (10) data pipe contains information belonging to the mentioned block.

8. The method according to any one of claims 1 to 7, which use an array containing information about the standard machine (SRM), the pipe material (SNM), pipe diameter (SNM), the thickness (SNM), the radius of the bend (SNM), the direction of bending (SNM), minimum (SNM) and maximum (SNM) flexion angles, the size, shape flexible (SNM), proportional (SNM) and permanent (SNM) values of the elastic restore the effect, mutual position and movement of machine tools, pipe bending machine (SRM-SRM), and each set (20) the process data contains information belonging to the mentioned block.

9. The method according to claim 1, in which the use of the unit, which includes information about the standard pipe (L1), pipe diameter (CHL2), the radius forms a flexible (CHL3), the number of simulated bending machines (CHL4), the number of cycles bending machine (CHL5), the identifier of the machine (CHL6), the number of end-of-pipe (CHL7), the carriage (CHL8), minimum turning circle (CHL9), maximum rotation (CHL10)used the angle of flexion (CHL11), theoretical angle of flexion (CHL12)implemented the radius of the bend (CHL13)and cycle commands flexion contains information belonging to the mentioned block.

10. The method according to claim 1, in which use block, which includes data on standard pipe (CHR1), pipe diameter (CHR2), the radius forms a flexible (CHR3), the number of simulated bending machines (CHR4), the number of cycles bending machine (CHR5), the identifier of the machine (CHR6), the number of end-of-pipe (CHR7), the stock of flexion relative to the first end (CHR8), the stock of flexion relative to the second end (CHR9), the consumption of materials required to manufacture (CHR10), the carriage (CHR11), minimum turning circle (CHR12), the maximum rotation (CHR13)used the angle of flexion (CHR14), theoretical angle of flexion (CHR15), implemented within the gibanja (CHR16), theoretical distance between two nodes (CHR17), supply (CHR18), minimum turning circle (CHR19), the maximum rotation (CHR20) and the possibility of bending (CHR21), and set (70) result data contains information belonging to the mentioned block.

11. The method according to claim 1, in which the simulation is carried out in a continuous mode without stopping the simulation when it detects a collision between three-dimensional geometric model of the pipe and three-dimensional geometric model of the bending machine and associated mechanical tools, the corresponding sequence of flexion, starting from one or from the other end of the pipe, and allowing to obtain a file containing the result of the simulation.

12. The method according to claim 1, in which the simulation is carried out in a step-by-step mode, containing the stop simulation at each detection of a collision, stop the current simulation, the simulation for each end of the pipe, the opportunity to continue the current simulation position detection, analysis and visual inspection detected a collision, and the record of detected collisions in the result file and the elimination of the mentioned file on the screen.

13. The device simulation process of bending tubes using at least one trubulence the machine, contains:
means for processing to obtain a set of (10) data pipes associated with the determination of three-dimensional geometric model of the bend pipe,
collection tools to obtain at least one set (20) of process data associated with the parameters, at least one bending machine corresponding to the machine tools and/or material of the pipe,
calculation tools for calculating at least one cycle (30, 35) teams flexion associated with at least one parameter of the production pipe, depending on the set (10) data pipe and from the set (20) of process data,
means receiving at least one three-dimensional geometric model (40), at least one bending machine and associated mechanical tools according to at least one parameter (50) manufacture, obtained on the basis of the calculated cycle (30, 35) teams flexion;
simulation tools are designed to implement, according to the cycle (35) is calculated thus commands bend, and three-dimensional kinematic modelling of the process of bending the pipe, characterized by the set (10) data pipe, using pipe bending machine and associated mechanical tools, characterized by the corresponding three-dimensional geometricheskoi model (40),
checker for checking the possibility of manufacturing a pipe using a pipe bending machine and associated mechanical tools when done this way and three-dimensional kinematic modeling, and to issue set (70) result data associated with the possibility of making pipe thus simulated bending machine and corresponding mechanical tools.

14. A storage medium readable by a computer system, intended for implementing the method of modeling the process of bending tubes using at least one bending machine, made entirely or partially removable, in particular a CD-ROM or magnetic media in the form of a hard disk or floppy disk, or transmitted carrier to provide electrical or optical signal, characterized in that it contains the commands of a computer program enabling the method according to any one of claims 1 to 12 with its load and its execution by the computer system.



 

Same patents:

FIELD: information technology.

SUBSTANCE: document has an integrated microcircuit (2) for communication with an reading and/or recording external device, at least one indicator element (4) built into a counterfeit-protected document for visual display of data (17) on identity and/or product, where the indicator element is a bistably controlled and has a two-way connection with the integrated microcircuit (2) and is programmed as a readable memory area.

EFFECT: improved technology of making counterfeit-protected documents.

23 cl, 5 dwg

Input device // 2410744

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to computer hardware and can be used to enter information into a computer. The device has a Bus Mouse, two buttons, an eight-bit expansion card and a visual cursor control unit, which has an optical sensor consisting of two lenses, a red filter, a CID matrix, a pulse amplifier and a coordinate generator which consists of a clock pulse generator, a frequency divider, delay units, switches, pulse counters, subtracting pulse counters, blocks of AND elements, self-powered pulse distributors.

EFFECT: presenting users with limited capacity of controlling the cursor on a computer screen with hands.

3 dwg, 1 tbl

FIELD: information technology.

SUBSTANCE: system for providing system level notifications in a multimedia console has a notification system application designed for the multimedia console which subscribes to all notification events generated by the application manager of the multimedia console. Through an application programming interface (API), a game developer can easily specify the location of user notifications and also delay the display of user notifications for the developer's game. A user is notified that a particular notification is intended for them in a multi-user environment by a visual indication corresponding to that user's controller. The user may then press a button on the controller to be immediately directed to further information relating to the notification.

EFFECT: display of notifications to several users on a console without considerable involvement of the multimedia application launched on the console.

20 cl, 17 dwg

Depth perception // 2407224

FIELD: information technologies.

SUBSTANCE: reproduction device is proposed to reproduce output image, comprising output pixels, on the basis of input image comprising input pixels, and on the basis of depth-related data elements corresponding to according input pixels. Unit of reproduction comprises the following components: unit of shift calculation for calculation of value shift, for application to input pixels on the basis of according depth-related data elements; and unit of interpolation to calculate output pixels on the basis of input pixels shift by according shift values. Unit of shift calculation is arranged with the possibility to provide for output value as the first one of shift values, which substantially equals zero, if according first one of input pixels complies with superposition, independently on according depth-related data element.

EFFECT: development of reproduction device arranged with the possibility to do image superposition with relatively high quality.

12 cl, 8 dwg

FIELD: information technology.

SUBSTANCE: electronic device has a touch panel which reads a 3-D interface and a controller which manages the graphic user interface (GUI) in response to the 3-D interface read by the touch panel. The touch panel has an external and an internal part forming a given inclination.

EFFECT: provision for a 3-D physical user interface for 3-D entering of commands.

37 cl, 91 dwg

FIELD: physics.

SUBSTANCE: terminal has a touch screen for displaying a list of elements and a controller for controlling scrolling of a first list of elements in a first direction and scrolling a second list of elements in a second direction, in which the second list of elements relates to an element selected in the first list of elements and in which the second list of elements is scrolled in the second direction while the first list of elements is displayed.

EFFECT: faster access to terminal functionalities.

29 cl, 18 dwg

FIELD: information technologies.

SUBSTANCE: sprite represents images of irregular shape overlaid over background images, preferably online. Generated sprite has specified first multitude of possible values of non-transparent colours of pixels and at least one value of pixel colours identifying transparent colour of pixel. Sprite is generated using initial data, including the first data structure specifying colour image with specified second multitude of possible colours of pixels, and the second data structure specifying non-transparent part of specified sprite. Compliance of colours of the first data structure and possible non-transparent colours of sprite is partial projection of the specified second multitude into the specified first multitude, where augmentation of area of identification of specified partial projection to the specified second multitude is the multitude, capacity of which is considerably lower than capacity of the specified second capacity, besides to identify the value of colours included into the specified first multitude and complying with colour of pixel from the first data structure, the following actions are taken: if pixel of the first data structure has colour that does not belong to the specified area of identification, then value of this pixel is established as equal to colour being one of nearest to initial colour of pixel and included in the specified area of identification; specified partial projection is applied to colour of pixel of the first data structure.

EFFECT: improving sprite generation reliability.

5 cl, 2 dwg

FIELD: information technology.

SUBSTANCE: information processing device receives data from several external devices connected through a network and displays a working window based on data content. The device has a reception unit which receives several data parts from several external devices, an analysis unit which analyses the received data and identifies a first component part which is common for corresponding data and a second component part which is not included in the first component part, and a display unit which displays information included in the first component part in the common display region of the working window, and displays information included in the second component part in a separate region of the working window.

EFFECT: processing data received from several external devices with separation of data which are common for several external devices and data components which are not included in the common part.

10 cl, 19 dwg

FIELD: information technologies.

SUBSTANCE: modular structure of content may include container of file format joined to modular parts. Fire format includes logically separate modular parts, which are joined to each other by means of one or more connections, besides each modular part is related to type of connection. Modular parts include the following: part "presentation", representing initial part for presentation, part "slide master", related to part "presentation", and "slide model" related to part "master slide". Modular parts may also include part "properties of document", comprising inbuilt properties related to file format, part "miniature sketch" comprising joined miniature sketches, and part "slide" comprising slide in presentation. Each modular part may be requested separately, extracted from presentation and/or repeatedly used in other presentation.

EFFECT: expansion of functional capabilities due to provision of repeated use of parts "slide model" and "slide master" in other presentation together with joined modular parts.

16 cl, 7 dwg

FIELD: information technology.

SUBSTANCE: touch scrolling device has a scrolling activator (22) for activating scrolling with a finger. The scrolling activator (22) has a first end zone (26) near the first end of the scrolling activator for fast scrolling in a first scrolling direction, a second end zone (28) near the second end of the scrolling activator for fast scrolling in a second scrolling direction and a normal zone (30) for normal scrolling.

EFFECT: faster operation through screen control process.

31 cl, 8 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of long cylindrical articles, in particular, to production of calibrated steel and wire. Proposed method comprises plastic deformation by cyclic alternating-sign bending. Deformation is performed with decreasing bending strain degree from initial value to bending strain at final stage. Initial values makes, at least, 2%. At final stage, strain equals billet metal yield strength. Proposed device comprises sections for rollers, each being made up of top and bottom angles articulated by their input and output ends. Inner surface of flange of each angle accommodates vertical and horizontal rollers and mechanisms of angle input and output ends rolling. Vertical and horizontal rollers of top angle are arranged alternating with vertical and horizontal rollers of bottom angle. Said rollers make working channel for billet drawing.

EFFECT: reduced strength characteristics of billet metal.

9 cl, 9 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming, in particular, to bar bending. Proposed automatic machine comprises device to feed billets piece-by-piece in bending zone, compound bending die, bending tools made up of rolls running free on their axles, billet clamping, bending and discharging tools drives. Note here that said compound bending die is made up of moving and stationary moulds that move together in contact. Foundation accommodates device to transfer biller from bending position to moulding position, moulding device, device to remove billet from the mould and biller distribution device.

EFFECT: longer life, higher efficiency.

5 dwg

FIELD: machine building.

SUBSTANCE: device consists of bed plate, of two supports mounted on bed plate and of replaceable puncheons. The bed plate rotates around its axis, is installed in a case and performs vertical travels. The case travels in horizontal plane. The supports are mounted on the bed plate, they converge and rock to centre of the bed plate and back under control. A bracket-shaped frame is rigidly tied with the case. A beam rotating around axis of the bed plate in mounted on the frame. The beam has slots, wherein there are installed lengthwise or two cross puncheons. The puncheons are equipped with shank ends corresponding to slots.

EFFECT: simplification of design avoiding usage of additional mechanisms for hoisting, turn and overturn of treated panel; control over dimension of bend section; upgraded quality of parts.

2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming, in particular to devices intended for free bending of lengthwise sections. Bending cylinder is arranged behind axial cylinder along feed direction. Feed unit and axial cylinder comprise one feed drive. Note here that axial cylinder can move independent of feed unit. Feed unit and axial cylinder incorporate also rotation drives for them to rotate in direction of section they retain and guide. Bending cylinder can be drive to reciprocate driven along only one axis passing across section lengthwise axis and feed direction, and rotate about axis crossing section lengthwise axis along feed direction. Besides bending cylinder can be drive to free driver with the direct cylinder or applying an it.

EFFECT: simplified design, expanded process performances.

8 cl, 3 dwg

Tube bending device // 2406585

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and can be used for tube bending by coiling on templet. Proposed device comprises mandrel arranged in the tube. Said mandrel incorporates the drive of rotation and its helical surface features rounded ledges. Note that axial component of speed of said ledges exceeds linear speed of tube coiling.

EFFECT: higher tube strength and quality due to bent tube wall thinning.

1 dwg

Tube bending device // 2406584

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming and can be used for tube bending by rolling on bending templet. Proposed device comprises templet and cranks to engage drive shaft with roll axle. Rolling roll is made up of two parts and allows measuring the distance between said parts along their axis. Note here that cranks are located on the surface of drive shaft with LH and RH thread.

EFFECT: higher tube strength and quality.

2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy, particularly to metal billet stretch forming. Proposed method comprises arranging the billet in the case on female die surface, insulating electrically said biller, gripping the billet at its opposite ends, resistance heating of the billet to working temperature, displacing the billet and female die surface relative to each other at the biller working temperatures, and cooling the billet down.

EFFECT: uniform heating to minimise heat losses.

10 cl, 11 dwg

FIELD: technological processes.

SUBSTANCE: group of inventions relates to metal plastic working, in particular to manufacturing of ceiling section bars with hollow wall. Method consists in serial bending of section bar elements in the main thin-walled strip billet, lining shelves on the outside with strip lining stock by bending of its edge elements to embrace end parts of shelves. In process of final bending of facing strip stock at edge elements from the side of wall, notches of determined depth are applied with pitch depending on width of section bar shelf. Lower roller of the last working stand of device has protrusions for application of notches.

EFFECT: improved quality of bent profiles, reduced number of transitions and labour intensiveness of manufacturing.

3 cl, 3 dwg, 1 ex

FIELD: metallurgy.

SUBSTANCE: invention refers to metal forming operations and is designed for production of components of rail brace clamp type, "П"-shaped brackets, eyes and such likes out of rods. A work-piece by one is supplied into the zone of stamp bending, is transferred to a bend working position, is held down to a fixed part of the punch and is successively preliminary double-side bent in the first working position. The second work-piece preliminary bent in the first working position is transferred to the second working position of the punch finally bent in the second working position of the punch, and is finally bent in the second working position of the punch. Also at preliminary bending end sections of the work-piece and transient sections are bent in from of arcs connecting the end sections with sides of common "П"-shape of the component and sides connecting intermediate arcs with the middle not bent side of the component used for constraint at shape bending. At final bend of the component is bent in a plane perpendicular relative to the common plane of component shape.

EFFECT: increased efficiency of process due to simultaneous operations with two components; improved quality of fabricated components owing to implementation of bending working tools with cylinder rollers.

2 cl, 8 dwg

FIELD: metallurgy.

SUBSTANCE: invention refers to metal forming operations and is designed for implementation at production of parts of rail brace clamp type out of rods. A work-piece by one is supplied into the zone of stamp bending, is transferred to a bend working position, and is fixed in a punch. Further the work-piece is successively preliminary double-side bent in the first working position, is transferred into the second working position of the punch and is finally bent in die impressions formed with movable and fixed mandrels-templates and with bending working components. When the work-piece is fixed in the first working position of the punch, it is pushed into a slit of a movable cylinder mandrel to the middle of the work-piece. Further the central part of the work-piece is bent by pushing it with the cylinder mandrel between rollers till there is formed a "П"-shape of the work-piece. Sides of the work-piece are bent along the shape of the mandrel, whereupon the work-piece is removed from the mandrel, is fixed in the second working position of the punch enveloping a mandrel-tooth with a middle part of the work-piece. "П"-shape of the work-piece is bent by turning the middle part to its ends in a plane perpendicular to the plane of the work-piece of "П"-shape produced after bend in the first working position of the punch. Also the second work-piece is loaded and fixed in the first working position of the punch simultaneously with final bend of the work-piece in the second working position.

EFFECT: expanded process functionality, raised process efficiency.

17 dwg

FIELD: machine building.

SUBSTANCE: device consists of bed plate, of two supports mounted on bed plate and of replaceable puncheons. The bed plate rotates around its axis, is installed in a case and performs vertical travels. The case travels in horizontal plane. The supports are mounted on the bed plate, they converge and rock to centre of the bed plate and back under control. A bracket-shaped frame is rigidly tied with the case. A beam rotating around axis of the bed plate in mounted on the frame. The beam has slots, wherein there are installed lengthwise or two cross puncheons. The puncheons are equipped with shank ends corresponding to slots.

EFFECT: simplification of design avoiding usage of additional mechanisms for hoisting, turn and overturn of treated panel; control over dimension of bend section; upgraded quality of parts.

2 dwg

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