Device for controlling sizes of the products with the longitudinal axis of symmetry

 

(57) Abstract:

Device for controlling sizes of the products with the longitudinal axis of symmetry refers to the control and measurement of parameters of the curved surfaces of bodies with a longitudinal axis of symmetry, for example, to control the parameters of the skirt and the oval piston engine. An object of the invention is the creation of high-precision and reliable devices with greater functionality and good performance. Device for controlling sizes of the products with the longitudinal axis of symmetry contains a horizontal table having two independent actuator to move it in two mutually perpendicular axes in the horizontal plane (X-axis) and (Y) to measure which table is equipped with sensors linear (along the X-axis and Y, respectively). On the surface of the movable part of the table is a snap to install and positioning of the test object. The working space of the table fixed laser light source, optically coupled with a light receiver, which can be used for the photodiode. The radiation detector is mounted on a stationary part of the table 1 under its moving part. Output when the offered handle is connected to the linear displacement sensors, and outputs connected to the processor unit connected to the memory unit and the interface unit, the output of which is the output of the control unit and connected to the computer. The tooling for the installation of the test object consists of two parallel skid triangular, for example, cross-section, the longitudinal axis of which is parallel to the axis Y. For providing optical coupling of the radiation source and radiation receiver workspace movable part of the table is made transparent. Equipment for positioning the test object is a face dividing head, made in the form of a disk with holes arranged in a circle. Spring retainer fixed on the surface of the table, functionally linked to a dividing head through the hole. 3 C.p. f-crystals, 2 Il.

The invention relates to the control and measurement of parameters of the curved surfaces of articles having a longitudinal axis of symmetry, for example, to control the parameters of the skirt and the oval piston engine.

Known measuring machine (CMM) for dimensional control of parts of complex shape, produced by DEA (Italy). They represent a horizontal stationary St. for information retrieval, made in the form of the probe, which is connected through an electronic processing unit with the computer, providing the analysis and display of information [1]. The disadvantage of these devices is the contact method of information retrieval, which dramatically reduces the functionality and accuracy.

Closest to the claimed device is a coordinate measuring machine [2]. She is a horizontal table, made with the possibility of movement along two coordinate axes in the horizontal plane. On the table is measured product. Tool for information retrieval is sensitive element in the form of a probe that is linked through a linear displacement sensor, and a processing unit with a computer. The probe is arranged to move relative to the vertical coordinate axis.

The prototype has a number of disadvantages:

- very low performance measurements associated with the need for mechanical contact of the probe with the object and move the nodes with large masses and dimensions;

- when pointwise scanning surface, the scanning step is limited by the contact surface area of the probe;

mechanical contact of the probe with the surface controller;

- the need for accurate calibration efforts of the contact of the probe with controlled surface;

- large overall dimensions, due to the presence of mechanically and kinematically related items, providing the movement of the probe along the vertical axis.

The consequence of these weaknesses is the low accuracy and reliability, as well as limited functionality, and greater complexity of the measurement process.

The aim of the invention is to remedy these disadvantages, namely the creation of high-precision, high-performance and reliable devices with greater functionality.

This objective is achieved in that the device for controlling sizes of the products with the longitudinal axis of symmetry containing a horizontal table for the installation of a controlled product, snobunny two actuators and two sensors linear movement, means for reading information associated with the control unit and the computer, unlike the prototype is further provided with a snap to install controlled products and accessories for angular positioning of the test object, a horizontal table for installation in control of the m mutually perpendicular axes in the horizontal plane, tool for information retrieval is executed in the form of a stationary fixed working space horizontal table for setting the controlled products of the laser light source, optically coupled with motionless established under the working space of the movable part of the horizontal table for mounting the test object by the receiver laser, the output of which is connected with the control unit, the second and third inputs of which are connected with the linear displacement sensors, and the output is connected to the computer.

In addition, this objective is achieved in that workspace horizontal table for mounting the test object is made transparent.

This goal is achieved that the control unit contains two primary processing unit, the first inputs of which are connected with sensors linear and second input - receiver laser, and outputs connected to the processor unit connected to the memory unit and the interface unit, the output of which is connected to the computer.

This goal is achieved by the fact that the tooling for the installation of a controlled product is raspolozhennogo section, the longitudinal axis of which is parallel to the Y-axis, and the snap-in for the angular positioning of the test object is a face dividing head, made in the form of a disk with holes arranged in a circle, and the centering portion, the diameter of which is equal to the inner diameter of the test object, and with the holes of the drive gear is connected by a spring-loaded latch rigidly associated with runners.

In Fig. 1 presents a diagram of the inventive device of Fig. 2 is an example of a specific implementation of tooling for positioning the test object.

Device for controlling sizes of the products with the longitudinal axis of symmetry contains a horizontal table 1 for installation of a controlled product that has two independent actuator to move it in two mutually perpendicular axes in the horizontal plane 2 (X-axis) and 3 (Y-axis), to measure which table is equipped with a linear displacement sensors 4 and 5 (on the X-axis and Y, respectively). On the surface of the movable part of the table is a snap for 6 installation and positioning of the test object 7. The working space of the table fixed laser light source 8, op is zlecenia 9 is mounted on the stationary part of the table 1 under its moving part. The output of the radiation detector is connected to the inputs of primary processing units 10 and 11 of the control unit 12. The second inputs of primary processing units 10 and 11 are connected with the linear displacement sensors 4 and 5, and outputs connected to the processor unit 13, connected to the memory unit 14 and the interface unit 15, the output of which is the output of the control unit 12 and is connected to the computer 16.

Snap 6 for installation of the test material 7 represents two parallel skid triangular, for example, cross sections, longitudinal axis which is parallel to the y-axis. To provide optical coupling of the radiation source 8 and the light receiver 9, the working space of the movable part of the table 1 is made transparent. Equipment for positioning the test object is a face separating the cylinder 17 (Fig. 2) made in the form of a disk with holes 18 arranged in a circle. Spring retainer 19, is rigidly fixed on the surface of the table, functionally linked to a dividing head 17 through 18 holes. The centering portion 20 a separating disk has a diameter equal to the inner diameter of the test object 7.

The inventive device operates after the 20 dividing head 17. Then it is installed on the rails 6. With the spring latch 19, which is included in one of the holes 18 end dividing head 17, the product is fixed in the desired angular position. Since the longitudinal axis of the runners 6 coincides with the Y axis, the longitudinal axis of the test object 7 also coincides with the y-axis Includes actuators table 1 and begins its movement with controlled product so that the stationary laser beam from the radiation source 8 scanned the entire lateral surface of the test object at a fixed angular position. At the intersection of the side surface (the boundary of light and shadow) is the overlap of the beam from the source 8. The signal from the receiver 9 captures information about the coordinates of the edges of the linear displacement sensors 4 and 5 in primary processing blocks 10 and 11 of the control unit 12. The processing unit 13 carries out reading of data from the blocks 10 and 11 and controls the interface unit 15 which generates a serial code for transmission to the external computer 16. The job processing unit 13 is carried out under control of programs stored in the memory unit 14. By control of the surface profile at the same angular position, remove the latch 19 from S="ptx2">

The scanning step and the algorithm for traversing the surface of the piston is set programmatically in accordance with the drawing. In the most important locations of the scanning step may be small.

The proposed device provides high-precision speed control that extends its functionality compared to the prototype. In addition, it has a more simple design and small mass-dimensional parameters, which positively affects device reliability.

1. Device for controlling sizes of the products with the longitudinal axis of symmetry containing a horizontal table for installation of controlled articles provided with two actuators and two sensors linear movement, means for reading information associated with a control unit and a computer, characterized in that it is further provided with a snap to install controlled products and accessories for angular positioning of the test object, a horizontal table for setting the controlled products made of a fixed part and a movable part mounted for movement in two mutually perpendicular axes in the horizontal plane, means for removing invoke test object source of laser radiation, optically conjugate with rigidly established under the working space of the movable part of the horizontal table for mounting the test object by the receiver laser, the output of which is connected with the control unit, the second and third inputs of which are connected with the linear displacement sensors, and the output is connected to the computer.

2. The device under item 1, characterized in that workspace horizontal table for mounting the test object is made transparent.

3. The device under item 1 or 2, characterized in that the control unit contains two primary processing unit, the first inputs of which are connected with sensors linear and second input - receiver laser, and outputs connected to the processor unit connected to the memory unit and the interface unit, the output of which is connected to the computer.

4. The device under item 1 or 2, or 3, characterized in that the snap-in to install the controlled product is a located on the working space of the horizontal table for setting the controlled products two skid triangular cross-section, the longitudinal axis of which is parallel to the Y-axis, and the snap-in for the angular pozicionirali circumference, and centering part, the diameter of which is equal to the inner diameter of the test object, and with the holes of the drive gear is connected by a spring-loaded latch rigidly associated with runners.

 

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