CN117433470A - Device and method for detecting inner diameter and outer diameter of bearing ring - Google Patents

Abstract

The invention relates to the technical field of bearing detection, and discloses a device and a method for detecting the inner diameter and the outer diameter of a bearing ring, wherein the device comprises a plurality of positioning assemblies, an inner ring detection assembly, a rotary friction assembly, an outer ring detection assembly, a jacking mechanism, a table top bottom plate, a profile frame and an operation table; the probes of the positioning assembly are tightly abutted against the bearing ring from different directions, the probes of the outer ring detection assembly and the inner ring detection assembly are combined to contact the inner side surface and the outer side surface of the bearing ring, and the friction wheel on the rotary friction assembly drives the bearing ring to rotate, so that the detection of average size deviation, taper and ellipticity of the inner diameter and the outer diameter of the bearing can be automatically completed. The detection of the reference end face size and the non-reference end face size of the bearing ring can be switched by lifting the table top plate, and the detection efficiency is improved.

Description

A device and method for detecting the inner and outer diameter of bearing rings

Technical field

The invention relates to the technical field of bearing detection, in particular to a device and method for detecting the inner and outer diameter of a bearing ring.

Background technique

Bearings can convert the direct friction of objects during rotation into rolling friction to reduce the friction coefficient and increase the service life of parts, thereby ensuring that the machine can work smoothly for a long time. Moreover, the bearings can be replaced after wear, reducing the cost of replacing parts. the cost of.

In the production process of bearings, there are strict dimensional requirements for each component. After turning and grinding, the dimensions of the inner and outer diameters of the bearing rings will be inspected. Currently, the inspection of bearing rings is mostly completed by manual inspection, mainly through Dimensional measurements using micrometers and circular run-out meters require manual recording of test data for subsequent installation and improvement of the production process. This measurement method has very high labor intensity requirements for workers. During the test, due to different technical abilities of the workers, Certain human errors occur, making it difficult to accurately evaluate the accuracy of the inner and outer diameters of the bearing rings; and automatic data recording cannot be completed during the inspection process.

Contents of the invention

In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a device and method for detecting the inner and outer diameter of a bearing ring, which uses the probe of the positioning assembly to tighten the bearing ring from different directions, and combines the outer ring detection assembly and the inner ring. The probe of the detection component contacts the inner and outer sides of the bearing ring, and the friction wheel on the rotating friction component drives the bearing ring to rotate, which can automatically detect the average size deviation, taper, and ovality of the bearing's inner and outer diameters. By lifting the table top plate, the detection of the reference end face size and the non-reference end face size of the bearing ring can be switched to improve the detection efficiency.

In order to achieve the above objects, the present invention is achieved through the following technical solutions:

In the first aspect, a bearing ring inner and outer diameter detection device includes:

The bottom plate of the countertop is connected to the top plate of the countertop through a lifting mechanism;

Several positioning components, including ejector pins sliding on the top plate of the table, press against the bearing rings from different directions;

The inner ring detection component includes an inner ring measuring instrument installed on the top plate of the table through the first screw nut. One end of the inner ring measuring instrument is connected with a special-shaped probe to contact the inner surface of the bearing ring;

The outer ring detection component includes an outer ring measuring instrument, the probe at the end of which is used to contact the outer surface of the bearing ring;

The rotating friction component includes a friction wheel installed on the top plate of the table through the second screw nut. The friction wheel drives the bearing ring to rotate through static friction;

Console, controls the detection process and records detection data.

As a further implementation method, the countertop bottom plate is installed on a profile frame, and the mounting surface of the profile frame is tilted.

As a further implementation method, the area of the mesa bottom plate is larger than the area of the mesa top plate. One end of the lifting mechanism is fixed on the mesa bottom plate, and the other end is connected to the mesa top plate as an output end. A distance sensor is provided on the mesa bottom plate and is arranged toward the mesa top plate.

As a further implementation, the positioning assembly is provided with at least two groups, one of which is located opposite to the rotating friction assembly, and the other group is located opposite to the outer ring detection assembly.

As a further implementation, the positioning assembly includes a screw base, a first guide rail is provided on the top of the screw base, a third screw nut pair is installed on the first guide rail, and the ejector pin is installed on the third screw nut pair .

As a further implementation, the third screw nut pair includes a third screw, both ends of the third screw pass through the bearing seat, and one end is connected to the third servo motor, and the third nut is threaded with the third screw. , the bottom of the third nut is slidingly matched with the first guide rail, the top of the third nut is installed with the first support plate, and the ejector pin is installed on the top of the support plate through an arcuate block and a clamp.

As a further implementation, the first screw nut pair includes a first screw, the first screw cooperates with the first nut, a fixing plate is provided on the top of the first nut, and the inner ring measuring instrument is installed on the Fixed plate.

As a further implementation, the second screw nut pair includes a second screw and a second nut, a second support plate is provided on the top of the second nut, the motor base is installed on the second support plate, and the rotating motor base is mounted on the second support plate. The motor and the friction wheel are connected to the output end of the rotating motor.

As a further implementation, the outer ring detection assembly includes a limit block, a slide rail is provided on the limit block, the clamp seat cooperates with the slide rail through the slide block, and the outer ring measuring instrument is installed on the clamp through the clamp The top of the seat; the limit block is installed on the bottom plate of the table and is located outside the top plate of the table. The height of the outer ring measuring instrument is greater than the top plate of the table.

In the second aspect, a working method of a bearing ring inner and outer diameter detection device adopts the bearing ring inner and outer diameter detection device as described above, and includes the following steps:

Input the bearing ring under test into the system in the console. The console controls the positioning assembly and the table top plate to move into place. Place the bearing ring under test on the table top plate. At this time, the probe at the end of the outer ring measuring instrument contacts the bearing sleeve. outer side of circle;

The auxiliary action of the first screw nut causes the special-shaped probe of the inner ring measuring instrument to contact the inner side of the bearing ring; the auxiliary action of the second screw nut causes the friction wheel to contact the outer side of the bearing ring;

The friction wheel drives the bearing ring to rotate, and the inner ring measuring instrument and the outer ring measuring instrument detect the bearing ring; the table top plate can be adjusted to different heights to detect the reference end face and non-reference end face of the bearing ring.

The above-mentioned beneficial effects of the present invention are as follows:

1. The present invention presses the bearing ring from different directions through the probe of the positioning assembly, and combines the probes of the outer ring detection assembly and the inner ring detection assembly to contact the inner and outer sides of the bearing ring, and drives the bearing by rotating the friction wheel on the friction assembly As the ferrule rotates, the average size deviation, taper, and ovality detection of the bearing's inner diameter and outer diameter can be automatically completed. By lifting the table top plate, the detection of the reference end face size and the non-reference end face size of the bearing ring can be switched to improve the detection efficiency.

2. The positioning assembly of the present invention is provided with at least two groups, one of which is arranged opposite to the rotating friction assembly, and the other is arranged opposite to the outer ring detection assembly to ensure that the center of the circle of the bearing ring under test is located between the upper outer ring measuring instrument and the lower side. The connecting vertical lines of the thimbles ensure the stability of the positioning of the bearing rings.

3. Through the detection and control system, the console of the present invention can control the corresponding actuators on the positioning component, detection component and rotating friction component to move to designated positions according to different types of bearing rings, ensuring measurement accuracy.

4. The installation surface of the profile frame of the present invention is tilted to facilitate the picking and placing of the bearing rings during detection; the distance sensor is used to detect the distance between the bottom plate of the table and the top plate of the table to realize the positioning movement and closed-loop control of the jacking mechanism.

Description of the drawings

The description and drawings that constitute a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

Figure 1 is a schematic diagram of the overall structure of a bearing ring inner and outer diameter detection device in an embodiment of the present invention;

Figure 2 is a schematic structural diagram of the positioning component in the embodiment of the present invention;

Figure 3 is a schematic structural diagram of the left ejector pin assembly in the embodiment of the present invention;

Figure 4 is a schematic structural diagram of the lower ejector assembly in the embodiment of the present invention;

Figure 5 is a schematic diagram of the inner ring detection component in the embodiment of the present invention;

Figure 6 is a schematic structural diagram of a rotating friction assembly in an embodiment of the present invention;

Figure 7 is a schematic structural diagram of the outer ring detection component in the embodiment of the present invention;

Figure 8 is a schematic diagram of the lifting mechanism in the embodiment of the present invention;

Figure 9 is a schematic diagram of the profile frame in the embodiment of the present invention;

Figure 10 is a schematic diagram of electrical connections in the embodiment of the present invention.

In the figure: The spacing or size between each part is exaggerated to show the position of each part, and the schematic diagram is for illustration only.

Among them: 1. Left positioning component, 2. Lower positioning component, 3. Inner ring detection component, 4. Rotating friction component, 5. Outer ring detection component, 6. Lifting mechanism, 7. Table bottom plate, 8. Profile Frame, 9. Console; 1-1, left thimble, 1-2, left bow block, 1-3, left locking bolt, 1-4, left support plate, 1-5, left nut , 1-6, left screw, 1-7, left guide rail, 1-8, left screw base, 1-9, left rear end bearing seat, 1-10, left rear end bearing, 1 -11. Left coupling, 1-12. Left motor seat, 1-13. Left servo motor, 1-14. Left front bearing seat, 1-15. Left front bearing; 2-1. Lower ejector pin, 2-2, lower bow block, 2-3, lower locking bolt, 2-4, lower support plate, 2-5, lower nut, 2-6, lower screw, 2 -7. Lower side guide rail, 2-8. Lower side screw base, 2-9. Lower side rear end bearing seat, 2-10. Lower side rear end bearing, 2-11. Lower side coupling, 2- 12. Lower motor seat, 2-13. Lower servo motor, 2-14. Lower front bearing seat, 2-15. Lower front bearing; 3-1. Special-shaped probe, 3-2. Inner ring measurement Instrument clamp, 3-3, inner ring measuring instrument, 3-4, lower right nut, 3-5, fixed plate, 3-6, lower right screw, 3-7, lower right rear end bearing seat , 3-8, lower right rear end bearing, 3-9, lower right coupling, 3-10, lower right motor base, 3-11, lower right servo motor, 3-12, lower right side Screw base, 3-13, lower right side guide rail, 3-14, lower right front end bearing seat, 3-15, lower right front end bearing; 4-1, friction wheel, 4-2, motor base, 4- 3. Friction coupling, 4-4. Rotating motor, 4-5. Clamping plate, 4-6. Right support plate, 4-7. Right servo motor, 4-8. Right motor base, 4 -9. Right coupling, 4-10. Right rear bearing seat, 4-11. Right rear bearing, 4-12. Right screw base, 4-13. Right nut, 4- 14. Right guide rail, 4-15, right screw, 4-16, right front bearing seat, 4-17, right front bearing; 5-1, limit block, 5-2, clamp seat, 5-3. Locking nut, 5-4. Outer ring measuring instrument, 5-5. Outer ring measuring instrument clamp, 5-6. Outer ring measuring instrument probe, 5-7. Slider; 6-1. Electric cylinder, 6-2, electric cylinder, 6-3, electric cylinder, 6-4, electric cylinder, 6-5, table top plate.

Detailed ways

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings commonly understood by one of ordinary skill in the art to which this invention belongs.

Embodiment 1

In a typical implementation of the present invention, as shown in FIGS. 1 to 10 , a bearing ring inner and outer diameter detection device includes a profile frame 8 , a table bottom plate 7 is provided on the top of the profile frame 8 , and the top of the table bottom plate 7 is The lifting mechanism 6 is connected to the table top plate 6 - 5 , and the lifting mechanism 6 can drive the table top plate 6 - 5 to rise and fall relative to the table bottom plate 7 .

Several positioning components, inner ring detection components 3, and rotational friction components 4 are installed on the top of the table top plate 6-5. The outer ring detection component 5 is installed on the table bottom plate 7. The top of the outer ring detection component 5 extends above the table top plate.

The positioning assembly is used to hold the bearing ring through the ejector pin, the inner ring detection assembly is used to detect the inner side of the bearing ring, the outer ring detection assembly 5 is used to detect the outer side of the bearing ring, and the rotating friction assembly 4 is used to resist the bearing ring. It is connected to the outer surface of the bearing ring and relies on static friction to drive the bearing ring to rotate to facilitate detection by the outer ring detection component and the inner ring detection component.

The bearing ring inner and outer diameter detection device also includes a console 9 located on one side of the profile frame. The console 9 is used to control the working process of the positioning component, the inner ring detection component 3, the rotating friction component 4, and the outer ring detection component 5, and Record detection data.

As shown in Figures 1 and 2, there are two sets of positioning components in this embodiment. The positioning components include ejector pins slidably provided on the top plate of the table to facilitate tightening of the bearing rings from different directions.

This embodiment takes the direction shown in Figure 2 as an example. The middle part is the bearing ring under test, and the left side is the first set of positioning components, which is the left positioning component 1; the second set of positioning components is located below the bearing ring under test. Position component 2 for the lower side. On the right side is the rotating friction component 4; the inner ring detection component 3 is located on the lower right side of the bearing ring being tested; the outer ring detection component 5 is located on the upper side of the bearing ring being tested.

The left positioning component 1 and the right rotating friction group 4 are arranged relative to the bearing ring, and the lower positioning component 2 and the outer ring detection component 5 are arranged relative to the bearing ring to facilitate positioning of the bearing ring during the detection process. stability.

The inner ring detection component 3 includes an inner ring measuring instrument 3-3 installed on the top plate of the table through the first screw nut. One end of the inner ring measuring instrument 3-3 is connected to a special-shaped probe 3-1 to contact the inner side of the bearing ring. . The first screw nut pair includes a first screw, the first screw cooperates with the first nut, a fixed plate is provided on the top of the first nut, and the inner ring measuring instrument is installed on the fixed plate through a clamp.

In Figure 5, the inner ring detection component 3 includes a lower right screw base 3-12. The top of the lower right screw base 3-12 is provided with a lower right guide rail 3-13. The first screw nut pair is installed on the lower right side. On the side rails 3-13. Among them, the front end of the top of the lower right screw base 3-12 is the lower right front end bearing seat 3-14. There is a lower right front end bearing 3-15 inside. The top of the lower right screw base 3-12 is close to the rear end. The lower rear end bearing seat 3-7 is provided with a right lower rear end bearing 3-8 inside. The rear end of the lower right screw base 3-12 is provided with a lower right motor base 3-10, and a lower right servo motor 3-11 is installed on the lower right motor base 3-10. The first screw is the lower right screw 3-6, its rear end passes through the lower right rear end bearing seat 3-7 and cooperates with the lower right servo motor 3-11 through the lower right coupling 3-9 , the front end rotates with the lower right front end bearing seat 3-14. The first nut is the lower right nut 3-4, which is threadedly matched with the lower right lead screw 3-6, and the bottom is snap-fitted and slidingly matched with the lower right guide rail 3-13. The lower right servo motor 3-11 drives the lower right screw 3-6 to rotate, so that the lower right nut 3-4 moves along the lower right guide rail 3-13.

There is a fixed plate 3-5 on the top of the nut 3-4 on the lower right side. The inner ring measuring instrument 3-3 is fixed on the fixed plate 3-5 through the inner ring measuring instrument clamp 3-2. The front end of the inner ring measuring instrument 3-3 There is a special-shaped probe 3-1 at the bottom. The special-shaped probe 3-1 is bent so that the end points to the rear end of the lower right screw base 3-12 to realize the movement of the lower right nut 3-4 and drive the special-shaped probe. The 3-1 end contacts the inner side of the bearing ring.

The rotating friction component 4 includes a friction wheel installed on the top plate of the table through a second screw nut pair. The friction wheel drives the bearing ring to rotate through static friction; the second screw nut pair includes a second screw and a second nut. The top of the nut is provided with a second support plate, the motor base is installed on the second support plate, the rotating motor is installed on the motor base, and the friction wheel is connected to the output end of the rotating motor.

As shown in Figure 6, the structure and principle of the second screw nut pair on the rotating friction component 4 are the same as the first screw nut pair on the inner ring detection component, specifically including the right screw base 4-12, the right screw base The left end of the rod base 4-12 is a right front end bearing seat 4-16 with a right front end bearing 4-17 inside. The top of the right screw base 4-12 is close to the right end and has a right rear end bearing 4-11 inside. The right rear end bearing seat 4-10. The right end of the right screw base 4-12 is provided with a right motor base 4-8.

The top of the right screw base 4-12 is provided with a right guide rail 4-14, and the right screw 4-15 (i.e. the second screw) is located above the right guide rail 4-14 and connected with the right front end bearing seat 4- 16 rotates with the right rear end bearing seat 4-10. The right screw 4-15 passes through the right rear end bearing seat 4-10 and then passes through the right coupling 4-9 and the right motor seat 4-8. Match the servo motor on the right side. The right nut 4-13 (i.e. the second nut) cooperates with the right lead screw 4-15 and the right guide rail 4-14. The top of the right nut 4-13 is provided with a right support plate 4-6 (i.e., the second support plate), and the W-shaped motor base 4-2 (i.e., the motor base) is installed on the right side support plate 4 through the clamping plate 4-5 -6 top. A rotating motor 4-4 is installed on the W-shaped motor base 4-2, and the rotating motor 4-4 is connected to the friction wheel 4-1 through a friction coupling 4-3.

The right servo motor 4-7 drives the right screw 4-15 to rotate, causing the right nut 4-13 to move laterally, driving the friction wheel 4-1 to approach and contact the bearing ring, and the rotating motor 4-4 can drive the friction wheel 4 -1 rotates, and the friction wheel 4-1 drives the clamped bearing ring to rotate through static friction.

The positioning assembly includes a screw base, a first guide rail is arranged on the top of the screw base, a third screw nut pair is installed on the first guide rail, and an ejector pin is installed on the third screw nut pair. The third screw nut pair includes a third screw. Both ends of the third screw pass through the bearing seat, and one end is connected to the third servo motor. The third nut is threaded with the third screw, and the bottom of the third nut is threaded with the first screw. The guide rail is slidingly fitted, a first support plate is installed on the top of the third nut, and the ejector pin is installed on the top of the support plate through an arcuate block and a clamp.

As shown in Figure 3, it is a schematic structural diagram of the first set of left positioning components 1 located on the left side. Specifically, it includes a left screw base 1-8 (i.e., a screw base), and a left guide rail 1-7 (i.e., a first guide rail) is provided on the top of the left screw base 1-8. The front end of the left screw base 1-8 is provided with a left front end bearing seat 1-14 containing a left front end bearing 1-15 inside, and the top surface is provided near the rear end with a left side bearing seat 1-10 containing a left rear end bearing 1-10 inside. Side rear end bearing seat 1-9. The rear end of the screw base 1-8 is provided with a left motor base 1-12, and a left servo motor 1-13 (third servo motor) is installed on the left motor base 1-12. The two ends of the third screw, namely the left screw 1-6, rotate with the left front end bearing seat 1-14 and the left rear end bearing seat 1-9, and the rear end passes through the left rear end bearing seat 1-9 Finally, it cooperates with the left servo motor 1-13 through the left coupling 1-11.

The third nut, namely the left nut 1-5, is threaded with the left screw 1-6. The bottom and the left guide rail 1-7 are slidingly engaged. The top of the left nut 1-5 is provided with a left support plate 1. -4 (first support plate), the left ejector pin 1-1 is installed on the top of the support plate through two left bow blocks 1-2 and clamps. The left locking bolts 1-3 lock the clamp. The two left bow blocks 1-2 are symmetrically installed on both sides of the top of the left support plate 1-4, and then clamped by clamps. The left thimble 1-1 is located at the front end of the clamp. By adjusting the relative position of the clamp and the left support plate 1-4, the height of the left thimble 1-1 can be adjusted, and its angle can also be adjusted. As shown in Figure 3, the left servo motor 1-13 drives the left screw 1-6 to rotate, causing the left nut 1-5 to move laterally, and then drives the left thimble 1-1 to tighten the bearing ring.

As shown in Figure 4, it is a schematic structural diagram of the second group of lower positioning components 2 located on the lower side, which has the same structure as the left positioning component. Therefore, the left ejector pin 1-1 and the lower ejector pin 2-1, the left arcuate block 1-2 and the lower arcuate block 2-2, the left locking bolt 1-3 and the lower locking bolt 2-3, the left Side support plate 1-4 and lower support plate 2-4, left nut 1-5 and lower nut 2-5, left screw 1-6 and lower screw 2-6, left guide rail 1- 7 and lower guide rail 2-7, left screw base 1-8 and lower screw base 2-8, left rear end bearing seat 1-9 and lower rear end bearing seat 2-9, left rear End bearing 1-10 and lower rear end bearing 2-10, left coupling 1-11 and lower coupling 2-11, left motor base 1-12 and lower motor base 2-12, left Side servo motor 1-13 and lower servo motor 2-13, left front end bearing seat 1-14 and lower front end bearing seat 2-14, left front end bearing 1-15 and lower front end bearing 2-15 are all The structure and connection method are the same, but the orientation of the positioning components on the top plate of the countertop is different.

As shown in Figure 8, the area of the mesa bottom plate 7 is larger than the area of the mesa top plate 6-5. One end of the lifting mechanism 6 is fixed on the mesa bottom plate 7, and the other end is connected to the mesa top plate 6-5 as an output end. The lifting structure is electric cylinder 6-1, electric cylinder 6-2, electric cylinder 6-3, and electric cylinder 6-4. The four electric cylinders have the same structure and are respectively located at the four corners of the bottom of the table top plate 6 to drive the table top plate up and down. A distance sensor is provided on the bottom plate 7 and is arranged toward the top plate 6-5 of the table to detect the distance between them and send the distance information to the console.

As shown in Figures 1 and 9, the table bottom plate 7 is installed on the profile frame 8. The mounting surface of the profile frame 8 is tilted and forms an angle of 45° with the horizontal plane to facilitate the placement of bearing rings during inspection.

As shown in Figure 7, the outer ring detection component includes an outer ring measuring instrument. The probe at its end is used to contact the outer surface of the bearing ring. The height of the outer ring measuring instrument 5-4 is greater than the table top plate 6-5; specifically , the outer ring detection component 5 includes a limit block 5-1 installed on the table bottom plate 7 and located outside the table top plate. The limit block is provided with a slide rail, and the clamp seat 5-2 is connected to the slide rail through the slide block 5-7. To cooperate, the outer ring measuring instrument 5-4 is installed on the top of the clamp seat 5-2 through the outer ring measuring instrument clamp 5-5. The extended length position of the outer ring measuring instrument probes 5-6 can be adjusted through the clamp. After adjusting the height of the clamp base 5-2 relative to the limit block 5-1 through the slider 5-7, it can be locked by the locking nut 5-3.

In this embodiment, the height of the outer ring measuring instrument 5-4 and the extended length position of the outer ring measuring instrument probe 5-6 are adjusted in advance, and the position data are input into the console.

The console 9 includes the PLC detection control system of the control layer and the industrial computer detection management system of the management layer. The detection management system manages the detection control system through industrial Ethernet and acquires data for command execution. The detection control system is connected to the execution layer through the servo drive bus. The left servo driver (left servo motor 1-13), the lower servo driver (lower servo motor 2-13), the lower right servo driver (lower right servo motor 3-11), the right servo driver ( Right servo motor 4-7), rotary servo driver (rotary motor 4-4), each servo driver respectively detects and controls the positioning movement of left ejector pin 1-1 and the positioning movement of lower ejector pin 2-1 through the encoder of the sensing layer , the lower right inner ring measuring instrument 3-3 is positioned and moved, the right friction wheel 4-1 is positioned and moved, and the bearing rotation speed is controlled.

The detection and control system collects data from the distance sensor, and drives the four electric cylinder motors through a DC motor driver to achieve positioning movement and closed-loop control of the jacking structure. The inspection management system connects the outer ring measuring instrument and the inner ring measuring instrument through the data communication bus to obtain the outer ring inspection data of the bearing ring and the inner ring inspection data of the bearing ring.

The inspection management system runs in the console industrial computer. The inspection management system stores the model and size of various tested bearing rings and the positioning of the corresponding left thimble, lower thimble, lower right inner ring measuring instrument, and right friction wheel. Position information and friction wheel rotation speed control information, etc. After the bearing ring model under test is determined, the inspection management system sends various inspection parameters to the inspection control system for automatic execution. The data measured by the inner and outer ring measuring instruments are transmitted to the detection management system through the data communication bus. The software system uses a filtering algorithm to eliminate erroneous data caused by motion, vibration and other reasons, and automatically detects the data measured by the inner and outer ring measuring instruments. The data is used to automatically calculate the average dimensional deviation, taper, ovality and other indicators, and compare them with the standard values of this type of bearing to automatically determine whether the tested bearing ring is qualified. The interactive interface on the console has multiple buttons to complete precise control of each step. The system is set to manual single control mode and fully automatic mode.

Embodiment 2

As shown in Figures 1 to 10, a working method of a bearing ring inner and outer diameter detection device uses the bearing ring inner and outer diameter detection device in Embodiment 1, which includes the following steps:

First of all, general bearing inspection needs to detect the base end face size, non-base end face size and raceway size of the bearing. Before testing, adjust the left ejector pin 1-1, the lower ejector pin 2-1, the upper outer ring measuring instrument 5-4, and the lower right inner ring measuring instrument 3-3 to the appropriate positions.

When testing a bearing, input the bearing ring model under test into the testing management system. The software system automatically matches the corresponding left ejector pin 1-1, lower ejector pin 2-1, and lower right inner ring measuring instrument 3 based on the input bearing model. -3. The precise position data of the right friction wheel 4-1 and the lifting mechanism.

In the manual mode, first, when performing the reference end face size detection, click the "Position" button on the operation interface, the left servo motor 1-13 and the lower servo motor 2-13 rotate, and drive the nut on the screw through the coupling. Secondary movement, move the left ejector pin 1-1 and the lower ejector pin 2-1 connected to the nut pair using the support plate to the preset position, and the screen prompts "Ejector pin positioning completed". The four electric cylinders move to the preset positions for reference end face measurement under PLC control, and the screen prompts "Reference end face detection and positioning completed."

Secondly, place the reference end of the bearing ring under test downward on the top plate of the table. The outer ring measuring instrument probes 5-6 have telescopic elasticity. When placed, the outer ring measuring instrument probes 5-6 are compressed. After placing the bearing sleeve, The circle is pressed tight. Click the "Move" button on the operation interface, and the right servo motor 4-7 rotates, driving the nut pair on the screw through the coupling, thereby driving the friction rotating component to move, so that the friction wheel 4-1 is connected with the bearing ring under test External surface contact. After the movement of the friction rotating component is completed, the servo motor 3-11 on the lower right side rotates, driving the nut pair on the screw through the coupling, and the inner ring measuring instrument 3-3 is connected to the nut pair using the fixed plate 3-5 Move to the preset position, and the special-shaped probe on the inner ring measuring instrument 3-3 comes into contact with the inner ring of the bearing. The screen prompts "Move to position completed".

Again, when all mechanisms reach the designated position, click the "Detect" button on the operation interface. At this time, the servo motor of the rotating friction part drives the friction wheel to rotate through the coupling, and the friction wheel 4-1 drives the tested bearing ring through static friction. Realizes rotational motion at set speed. When the bearing ring under test rotates, the outer ring measuring instrument and the inner ring measuring instrument transmit the measured data to the inspection management system. After the measurement is completed, the rotating motor 4-4 stops. The software system uses a filtering algorithm to eliminate erroneous data caused by motion, vibration, etc., and then automatically detects the data measured by the inner diameter and outer diameter measuring instruments, including the maximum values d _max and D _max of the inner diameter and outer diameter of the reference end face, and the reference end face The minimum values d _min and D _min of the inner diameter and outer diameter and the average values d _avg and D _avg of the inner diameter and outer diameter of the reference end face, etc.

Subsequently, when performing non-reference end face size detection, the PLC controls the synchronous movement of the four electric cylinders to move the bearing ring under test to the non-reference end face measurement preset position through the table top plate 6, so that the outer ring measuring instrument 5-4 detects The special-shaped probe of the needle and inner ring measuring instrument 3-3 is adjusted to the measurement plane of the non-reference end face. The friction wheel 4-1 is rotated by the rotating motor. Repeat the above steps to obtain the detection data, including the non-reference end face. The maximum values of the inner diameter and outer diameter are n _max and N _max , the minimum values of the non-standard end face inner diameter and outer diameter are n _min and N _min , and the average values of the non-standard end face inner diameter and outer diameter are n _avg and N _avg , etc.

Then, when measuring the raceway size, the steps are the same as measuring the non-reference end face size, and the detection data is obtained, including the maximum values g _max and G _max of the raceway inner diameter and outer diameter, and the minimum value g of the raceway inner diameter and outer diameter. _min , G _min, etc.

Finally, after all the reference end face dimensions, non-reference end face dimensions and raceway dimensions of the bearing ring under test are inspected, the inspection management system interface prompts "Inspection Complete", click the "Reset" button, the inner ring measuring instrument and the rotating friction assembly Reset under the drive of their respective motors, and remove the bearing ring under test.

If the bearing models for subsequent measurements are the same, just put the new bearing ring under test and click the "Move" button to complete the subsequent testing part. If you need to test other types of bearings, you need to click the "Cancel Position" button and re-enter the testing management. Select the bearing model on the system interface and follow the above steps to complete the detection of the bearing ring under test.

In the automatic mode, the detection control system controls the PLC to automatically complete the positioning, movement and detection functions of the reference end face, non-reference end face and raceway size measurement.

The inspection management system automatically calculates average dimensional deviation, taper, ovality and other indicators based on the inner and outer diameters of the inner and outer rings under test, and compares them with the standard values of the bearing type to automatically determine whether the bearing ring under test is qualified. in,

Inner diameter ovality of the reference end face: V _dp = d _max - d _min ;

Ovality of the outer diameter of the reference end face: V _Dp =D _max -D _min ;

Inner diameter ovality of non-reference end face: N _dp =n _max -n _min ;

Ovality of outer diameter of non-reference end face: N _Dp =N _max -N _min ;

The inner diameter ovality of the raceway: V _dip =g _max -g _min ;

The outer diameter ovality of the raceway: V _Dep = G _max - G _min ;

Inner diameter taper V _dmp =n _avg -d _avg ;

Outer diameter taper V _Dmp =N _avg -D _avg .

In this embodiment, the probes of the positioning assembly are used to tighten the bearing ring from different directions, and the probes of the outer ring detection assembly and the inner ring detection assembly are combined to contact the inner and outer sides of the bearing ring, and the friction wheel on the rotating friction assembly drives the bearing sleeve. By rotating in circles, the average size deviation, taper, and ovality detection of the bearing's inner diameter and outer diameter can be automatically completed. By lifting the top plate of the table, it is possible to switch between the detection of the reference end face size and the non-reference end face size of the bearing ring, improving the detection efficiency; at the same time, the detected data can be recorded through the detection management system, which facilitates the calculation and acquisition of data.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a bearing ring inside and outside diameter detection device which characterized in that includes:

the top of the table top bottom plate is connected with the table top plate through a jacking mechanism;

the positioning assemblies comprise ejector pins which are arranged on the top plate of the table top in a sliding manner, and the bearing rings are tightly jacked from different directions;

the inner ring detection assembly comprises an inner ring measuring instrument arranged on the top plate of the table top through a first screw nut pair, and one end of the inner ring measuring instrument is connected with a special-shaped probe to be abutted against the inner side surface of the bearing ring;

the outer ring detection assembly comprises an outer ring measuring instrument, and a probe at the end part of the outer ring measuring instrument is used for abutting against the outer side surface of the bearing ring;

the rotary friction assembly comprises a friction wheel arranged on the top plate of the table top through a second screw nut pair, and the friction wheel drives the bearing ring to rotate in a static friction mode;

and the control console controls the detection process and records the detection data.

2. The device for detecting the inner diameter and the outer diameter of a bearing ring according to claim 1, wherein the table-board bottom plate is mounted on a section bar frame, and the mounting surface of the section bar frame is obliquely arranged.

3. The device for detecting the inner diameter and the outer diameter of the bearing ring according to claim 1, wherein the area of the table top bottom plate is larger than that of the table top plate, one end of the jacking mechanism is fixed on the table top bottom plate, the other end of the jacking mechanism is used as an output end to be connected with the table top plate, a distance measuring sensor is arranged on the table top bottom plate, and the distance measuring sensor is arranged towards the table top plate.

4. The device for detecting the inner diameter and the outer diameter of the bearing ring according to claim 1, wherein at least two groups of positioning assemblies are arranged, one group is arranged opposite to the rotary friction assembly, and the other group is arranged opposite to the outer ring detection assembly.

5. The device for detecting the inner diameter and the outer diameter of a bearing ring according to claim 4, wherein the positioning assembly comprises a screw base, a first guide rail is arranged at the top of the screw base, a third screw nut pair is arranged on the first guide rail, and the thimble is arranged on the third screw nut pair.

6. The device for detecting the inner diameter and the outer diameter of a bearing ring according to claim 5, wherein the third screw-nut pair comprises a third screw, two ends of the third screw penetrate through bearing seats, one end of the third screw is connected with a third servo motor, the third nut is in threaded fit with the third screw, the bottom of the third nut is in sliding fit with the first guide rail, a first supporting plate is installed at the top of the third nut, and the thimble is installed at the top of the supporting plate through an arch block and a clamp.

7. The device for detecting the inner diameter and the outer diameter of the bearing ring according to claim 1, wherein the first screw-nut pair comprises a first screw, the first screw is matched with a first nut, a fixing plate is arranged at the top of the first nut, and the inner ring measuring instrument is installed on the fixing plate through a clamp.

8. The device for detecting the inner diameter and the outer diameter of the bearing ring according to claim 1, wherein the second screw-nut pair comprises a second screw and a second nut, a second supporting plate is arranged at the top of the second nut, a motor seat is arranged on the second supporting plate, a rotating motor is arranged on the motor seat, and a friction wheel is connected with the output end of the rotating motor.

9. The device for detecting the inner diameter and the outer diameter of the bearing ring according to claim 1, wherein the outer ring detection assembly comprises a limiting block, a sliding rail is arranged on the limiting block, a clamp seat is matched with the sliding rail through a sliding block, and the outer ring measuring instrument is arranged at the top of the clamp seat through a clamp; the limiting block is arranged on the table top bottom plate and positioned on the outer side of the table top plate, and the height of the outer ring measuring instrument is larger than the table top plate.

10. A working method of a bearing ring inner and outer diameter detection device, characterized in that the bearing ring inner and outer diameter detection device according to any one of claims 1-9 is adopted, comprising the following steps:

the system inputs the measured bearing ring into the control console, the control console controls the positioning component and the table top plate to move in place, the measured bearing ring is placed on the table top plate, and at the moment, the probe at the end part of the outer ring measuring instrument is abutted against the outer side surface of the bearing ring;

the first screw nut pair acts to enable the special-shaped probe of the inner ring measuring instrument to abut against the inner side surface of the bearing ring; the second screw nut pair acts to enable the friction wheel to contact the outer side surface of the bearing ring;

the friction wheel drives the bearing ring to rotate, and the inner ring measuring instrument and the outer ring measuring instrument detect the bearing ring;

the table top plates have different adjustment heights, so that the reference end face and the non-reference end face of the bearing ring can be detected.