Optical rolling bearing detection machine

Abstract

The invention relates to the technical field of bearing detection, in particular to an optical rolling bearing detection machine which comprises a base, a machine body is fixedly installed on the upper surface of the base, a concave block is connected to the position, close to the front, of the upper surface of the base through a rotary lifting mechanism, and two lifting rollers are rotatably installed at the upper end of the concave block; the front surface of the machine body is connected with two connecting frames through an XY-axis control mechanism, and the faces, close to each other, of the two connecting frames are connected with rotating plates through rotating mechanisms correspondingly. The bearing structure can be comprehensively positioned, the surface of the bearing can be comprehensively detected, in the two-time detection process, the shielded position of the bearing can be comprehensively detected, and the detection efficiency is improved. And in the two detection processes, the state of each structure of the bearing is not changed, and the detection precision is improved.

Description

Technical Field

[0001] This invention relates to the field of bearing testing technology, and in particular to an optical rolling bearing testing machine. Background Technology

[0002] An optical rolling bearing inspection machine is a device that uses optical imaging technology to inspect the quality of rolling bearings. It can detect surface defects, dimensional deviations, and other problems in bearings, effectively improving inspection efficiency and accuracy while reducing manual inspection costs. It primarily utilizes optical phenomena such as transmitted and diffused light to acquire images of the bearing through an optical imaging system. Then, using image processing algorithms such as image enhancement, feature extraction, and pattern recognition, the images are analyzed and processed to automatically detect and classify abnormal features in the bearing images, identifying defects such as cracks, spalling, and wear on the bearing surface.

[0003] In optical imaging inspection, the bearing is controlled to rotate in stages during the inspection process (e.g., 30° each time). With the avoidance design of the fixture, the area that was originally blocked is exposed after rotation. The fixed camera then takes pictures of the bearings in sequence. The bearings in the imaging process usually need to be consistent or have a clear correlation. This is the key to ensuring the validity of the inspection data, the accuracy of defect location, and the reliability of subsequent algorithm analysis.

[0004] Tapered roller bearings are a common type of rolling bearing. Their structure revolves around tapered rollers that mate with tapered raceways on both inner and outer rings, enabling them to withstand both large radial and unidirectional axial loads. During testing, step-by-step rotation can cause relative rotation between the inner and outer rings and the tapered rollers, resulting in changes in the overall bearing condition between different images, rather than a uniform synchronous rotation. This affects the accuracy of the testing. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the prior art by proposing an optical rolling bearing inspection machine.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an optical rolling bearing testing machine, comprising a base, an organism fixedly mounted on the upper surface of the base, a concave block connected to the upper surface of the base near the front via a rotating lifting mechanism, two lifting rollers rotatably mounted on the upper end of the concave block, two connecting frames connected to the front surface of the organism via an XY axis control mechanism, rotating plates connected to the sides of the two connecting frames that are close to each other via a rotating mechanism, two side clamping blocks and two inner clamping blocks slidably inserted into one side of the rotating plate, an adjusting mechanism provided between the two side clamping blocks and the two inner clamping blocks, a connecting ring fixedly connected to the sides of the two rotating plates that are close to each other, a rubber ring fixedly connected to one side surface of the connecting ring, the rubber ring passing between the inner clamping block and the side clamping block.

[0007] Preferably, the rotating lifting mechanism includes a telescopic cylinder fixedly installed on the inner bottom surface of the base. A servo turntable is fixedly installed at the telescopic end of the telescopic cylinder. The servo turntable slides through the upper surface of the base. An installation plate is fixedly installed at the output end of the servo turntable. The upper surface of the installation plate is fixedly connected to the lower end of the concave block.

[0008] Preferably, the XY axis control mechanism includes a longitudinal rail fixedly mounted on one side surface of the machine body, a longitudinal slide table slidably connected to one side surface of the longitudinal rail in the front-rear direction, a longitudinal lead screw rotatably mounted on the inner side of the longitudinal rail, the longitudinal lead screw threaded through the inner side of the longitudinal slide table, a second drive motor fixedly mounted on the rear end of the longitudinal rail, the output shaft of the second drive motor fixed to the rear end of the longitudinal lead screw, a transverse rail fixedly mounted on the front end of the longitudinal slide table, and a distance control mechanism provided between the front surface of the transverse rail and the two connecting frames.

[0009] Preferably, the distance control mechanism includes two transverse slides slidably connected to the front surface of the transverse rail. A transverse sliding plate is fixedly installed on the front surface of the transverse slide. The upper end of the front surface of the transverse sliding plate is fixedly connected to the rear end of the connecting frame. A transverse lead screw is rotatably installed on the inner side of the transverse rail. The transverse lead screw is threaded through the inner side of the transverse slide. A first drive motor is fixedly installed on one side surface of the transverse rail. The output shaft of the first drive motor is fixed to one end of the transverse lead screw.

[0010] Preferably, the rotating mechanism includes a mounting base fixedly installed at the front end of the connecting frame, a servo motor fixedly installed on one side surface of the mounting base, a rotating shaft fixedly installed on the output shaft of the servo motor, the rotating shaft rotating through the inner side of the mounting base, a connecting block fixedly connected to the side surface of the rotating plate near the mounting base, and one end of the rotating shaft fixedly connected to one side surface of the connecting block.

[0011] Preferably, the adjusting mechanism includes end plates fixedly connected to both ends of the rotating plate, a threaded rod rotatably installed between the two end plates, four sliding openings through one side surface of the rotating plate, the side clamping block and the inner clamping block slidingly passing through the inner side of the sliding openings, bending blocks extending from the upper surface of the two inner clamping blocks and the lower surface of the two side clamping blocks, one threaded rod threaded through the two upper bending blocks, the other threaded rod threaded through the two lower bending blocks, and a rotating head fixedly connected to one end of the threaded rod.

[0012] Preferably, a detection camera is fixedly embedded on the front surface of the machine body.

[0013] Preferably, two connecting seats are fixedly connected to the front and rear upper ends of the concave block, and a collar is fixedly connected to the upper end of the connecting seat. The lifting roller is located between the two collars, and a rotating column is fixedly connected to both end faces of the lifting roller. The rotating column rotates through the inner side of the collar.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this invention, after the two rotating plates approach each other, the side clamping block clamps the outer ring side surface of the bearing, the inner clamping block clamps the inner ring side surface of the bearing, and the rubber ring clamps the side surface of several tapered rollers, which can provide comprehensive positioning of the bearing structure.

[0016] 2. This invention controls the bearing rotation by a servo turntable, and with the help of a detection camera, it can perform a comprehensive inspection of the bearing surface. During the two inspections, the obscured parts of the bearing can be fully inspected, and the state of each structure of the bearing does not change during the two inspections, thus improving the inspection accuracy.

[0017] 3. In this invention, by rotating the two threaded rods on a rotating plate, the two side clamping blocks can be controlled to move closer or further apart, or the two inner clamping blocks can be controlled to move closer or further apart, thereby ensuring that the side clamping blocks can clamp the side surface of the outer ring of the bearing, and the inner clamping blocks can clamp the side surface of the inner ring of the bearing, ensuring accurate clamping position, achieving the effect of driving the bearing to rotate after stable positioning, and having a good adaptation effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an optical rolling bearing testing machine according to the present invention;

[0019] Figure 2 This is a partial structural schematic diagram of an optical rolling bearing testing machine according to the present invention;

[0020] Figure 3 This is a schematic diagram of the rotating plate of an optical rolling bearing testing machine according to the present invention;

[0021] Figure 4 This is a schematic diagram of the servo turntable of an optical rolling bearing inspection machine according to the present invention;

[0022] Figure 5 This is a schematic diagram of the concave block of an optical rolling bearing testing machine according to the present invention;

[0023] Figure 6 This is a schematic diagram of the testing process of an optical rolling bearing testing machine according to the present invention;

[0024] Figure 7 This invention relates to an optical rolling bearing testing machine. Figure 6 Enlarged view of point A in the middle;

[0025] Figure 8 This is a schematic diagram of a bearing in an optical rolling bearing testing machine according to the present invention.

[0026] The components are as follows: 1. Base; 2. Body; 3. Servo turntable; 4. Telescopic cylinder; 5. Mounting plate; 6. Concave block; 7. Connecting seat; 8. Collar; 9. Lifting roller; 10. Rotating column; 11. Connecting frame; 12. Mounting seat; 13. Servo motor; 14. Rotating shaft; 15. Connecting block; 16. Rotating plate; 17. Sliding mouth; 18. Side clamping block; 19. Inner clamping block; 20. Bending block; 21. End plate; 22. Threaded rod; 23. Rotating head; 24. Connecting ring; 25. Rubber ring; 26. Transverse plate; 27. Transverse slide table; 28. Transverse rail; 29. ​​Transverse lead screw; 30. First drive motor; 31. Longitudinal slide table; 32. Longitudinal rail; 33. Longitudinal lead screw; 34. Second drive motor; 35. Detection camera; 36. Bearing outer ring; 37. Tapered roller; 38. Bearing inner ring. Detailed Implementation

[0027] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0028] like Figures 1-8 An optical rolling bearing inspection machine is shown, comprising a base 1, with a body 2 fixedly mounted on the upper surface of the base 1. The image processing system of the body 2 can perform grayscale analysis, edge detection, and dimensional measurement on the image. By comparing it with preset standard parameters, it can identify anomalies such as scratches, cracks, and dimensional deviations, thereby achieving the inspection purpose. A concave block 6 is connected to the upper surface of the base 1 near the front via a rotating lifting mechanism. Two lifting rollers 9 are rotatably mounted on the upper end of the concave block 6. Two connecting frames 11 are connected to the front surface of the body 2 via an XY axis control mechanism. The XY axis control mechanism can... The system controls the synchronous forward and backward movement of the two connecting frames 11, and also controls their movement towards or away from each other. The sides of the two connecting frames 11 that are close to each other are each connected to a rotating plate 16 via a rotating mechanism. Two side clamping blocks 18 and two inner clamping blocks 19 are slidably inserted into one side of the rotating plate 16. Adjustment mechanisms are provided between the two side clamping blocks 18 and the two inner clamping blocks 19. Connecting rings 24 are fixedly connected to the sides of the two rotating plates 16 that are close to each other. A rubber ring 25 is fixedly connected to one side surface of the connecting ring 24, passing between the inner clamping block 19 and the side clamping block 18. The rubber ring 25 can fully contact the end face of the tapered roller 37, thereby ensuring that the tapered roller 37 rotates synchronously relative to the outer ring 36 and the inner ring 38 of the bearing during step-by-step rotation of the bearing.

[0029] like Figure 8As shown, the inner ring 38 of the bearing is located inside the outer ring 36 of the bearing, and the tapered roller 37 is located between the inner ring 38 and the outer ring 36 of the bearing.

[0030] like Figure 4 As shown, the rotating lifting mechanism includes a telescopic cylinder 4 fixedly installed on the inner bottom surface of the base 1. A servo turntable 3 is fixedly installed at the telescopic end of the telescopic cylinder 4. The servo turntable 3 slides through the upper surface of the base 1, ensuring that the servo turntable 3 can move relatively smoothly vertically when moving up and down. A mounting plate 5 is fixedly installed at the output end of the servo turntable 3, and the upper surface of the mounting plate 5 is fixedly connected to the lower end of the concave block 6. The telescopic cylinder 4 is an electric cylinder, which can flexibly and precisely control the vertical movement distance of the servo turntable 3, thereby controlling the height of the bearing.

[0031] like Figure 1 , Figure 2 As shown, the XY axis control mechanism includes a longitudinal rail 32 fixedly mounted on one side surface of the machine body 2. A longitudinal slide table 31 is slidably connected to one side surface of the longitudinal rail 32 in the front-back direction. A longitudinal lead screw 33 is rotatably mounted on the inner side of the longitudinal rail 32, and the longitudinal lead screw 33 is threaded through the inner side of the longitudinal slide table 31. A second drive motor 34 is fixedly mounted at the rear end of the longitudinal rail 32, and the output shaft of the second drive motor 34 is fixed to the rear end of the longitudinal lead screw 33. A transverse rail 28 is fixedly mounted at the front end of the longitudinal slide table 31, and a distance control mechanism is provided between the front surface of the transverse rail 28 and the two connecting frames 11. By controlling the second drive motor 34 to rotate the longitudinal lead screw 33, the longitudinal slide table 31 moves back and forth, thereby changing the front-back position of the two rotating plates 16. At the same time, in conjunction with the extension and retraction of the telescopic cylinder 4, the bearing can move vertically. The adjustment of the two degrees of freedom ensures that the connecting ring 24 is kept as coaxial as possible with the bearing.

[0032] like Figure 2 As shown, the distance control mechanism includes two transverse slides 27 slidably connected to the front surface of the transverse rail 28. A transverse sliding plate 26 is fixedly mounted on the front surface of the transverse slide 27, and the upper end of the front surface of the transverse sliding plate 26 is fixedly connected to the rear end of the connecting frame 11. A transverse lead screw 29 is rotatably mounted on the inner side of the transverse rail 28, and the thread of the transverse lead screw 29 passes through the inner side of the transverse slide 27. A first drive motor 30 is fixedly mounted on one side surface of the transverse rail 28, and the output shaft of the first drive motor 30 is fixed to one end of the transverse lead screw 29. The threads on the outer surface of the transverse lead screw 29 are symmetrical on both sides. When the transverse lead screw 29 rotates, the two transverse slides 27 move closer to each other or further away, thereby controlling the two rotating plates 16 to move closer to each other or further away.

[0033] like Figure 4As shown, the rotating mechanism includes a mounting base 12 fixedly mounted on the front end of the connecting frame 11. A servo motor 13 is fixedly mounted on one side surface of the mounting base 12. A rotating shaft 14 is fixedly mounted on the output shaft of the servo motor 13. The rotating shaft 14 rotatably passes through the inner side of the mounting base 12. A connecting block 15 is fixedly connected to the side surface of the rotating plate 16 near the mounting base 12. One end of the rotating shaft 14 is fixedly connected to one side surface of the connecting block 15. The servo motor 13 drives the rotating shaft 14 to rotate, thereby precisely controlling the rotation of the rotating plate 16.

[0034] like Figure 3 As shown, the adjusting mechanism includes end plates 21 fixedly connected to both ends of the rotating plate 16. A threaded rod 22 is rotatably mounted between the two end plates 21. Four sliding openings 17 are provided through one side surface of the rotating plate 16. Side clamping blocks 18 and inner clamping blocks 19 slide through the inner side of the sliding openings 17. Bent blocks 20 extend from the upper surfaces of the two inner clamping blocks 19 and the lower surfaces of the two side clamping blocks 18. One threaded rod 22 is threaded through the two upper bent blocks 20, and the other threaded rod 22 is threaded through the two lower bent blocks 20. A rotating head 23 is fixedly connected to one end of the threaded rod 22. It should be noted that the threaded rod 22 rotatably passes through the inner side of the connecting block 15. The rotating head 23 facilitates the user to rotate the threaded rod 22. The rotation of the two threaded rods 22 controls the distance between the two inner clamping blocks 19 and the distance between the two side clamping blocks 18, respectively.

[0035] like Figure 1 As shown, a detection camera 35 is fixedly embedded on the front surface of the machine body 2. Based on optical imaging and machine vision technology, the detection camera 35 captures light signals on the bearing surface through its lens, converts them into digital images, and then the image processing system of the machine body 2 performs grayscale analysis, edge detection, and size measurement on the images. By comparing them with preset standard parameters, it identifies anomalies such as scratches, cracks, and dimensional deviations, ultimately realizing automated detection and judgment of bearing quality.

[0036] like Figure 5 As shown, two connecting seats 7 are fixedly connected to the front and rear upper ends of the concave block 6, respectively. A collar 8 is fixedly connected to the upper end of the connecting seat 7. The lifting roller 9 is located between the two collars 8. Rotating columns 10 are fixedly connected to both end faces of the lifting roller 9, and the rotating columns 10 rotate through the inner side of the collar 8. The lifting roller 9 can rotate relative to the collar 8. When rotating, the rotating columns 10 can rotate relative to the inner side of the collar 8, ensuring that the step-by-step rotation of the bearing is not affected.

[0037] During testing, the bearing is placed on the surface of two lifting rollers 9. The first drive motor 30 is controlled to rotate. When the transverse screw 29 rotates, the two transverse slides 27 move away from each other, causing the rotating plate 16 to move away from the bearing. Then, the servo turntable 3 is controlled to rotate the mounting plate 5, which in turn causes the bearing to rotate. The testing camera 35 can capture images from multiple angles around the bearing. When the test is completed in one rotation, the area on the bearing surface obscured by the lifting rollers 9 is not fully captured. Afterwards, the first drive motor 30 is controlled to reverse, causing the two transverse plates 26 to move closer together, the two connecting frames 11 to move closer together, and the two rotating plates 16 to move closer together. Then, the side clamping block 18 clamps the side surface of the bearing outer ring 36, the inner clamping block 19 clamps the side surface of the bearing inner ring 38, and the rubber ring 25 clamps the side surfaces of several tapered rollers 37. This achieves the function of comprehensive positioning of the bearing structure. The state at this time is as follows: Figure 6 , Figure 7 As shown, the servo motor 13 is then driven to rotate the rotating plate 16. After the bearing is rotated slightly, the part of the bearing that was originally located between the two lifting rollers 9 is moved out. Then, the two connecting frames 11 are controlled to move away from each other. After that, the servo turntable 3 controls the bearing to rotate. With the help of the detection camera 35, the bearing surface can be fully inspected again. During the two inspections, the obscured parts of the bearing can be fully inspected. Moreover, the state of each structure of the bearing does not change during the two inspections, thus improving the inspection accuracy.

[0038] By rotating the two threaded rods 22 on a rotating plate 16, the user can control the two side clamping blocks 18 to move closer or further apart, or control the two inner clamping blocks 19 to move closer or further apart, thereby ensuring that the side clamping blocks 18 can clamp the side surface of the outer ring 36 of the bearing, and the inner clamping blocks 19 can clamp the side surface of the inner ring 38 of the bearing, ensuring accurate clamping position and achieving the function of driving the bearing to rotate after stable positioning.

[0039] During the testing of a batch of bearings, the user controls the second drive motor 34 to rotate the longitudinal lead screw 33, causing the longitudinal slide 31 to move back and forth, thereby changing the front and back positions of the two rotating plates 16. At the same time, in conjunction with the extension and retraction of the telescopic cylinder 4, the bearing can move vertically. The adjustment of the two degrees of freedom ensures that the connecting ring 24 is kept as coaxial as possible with the bearing.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. An optical rolling bearing testing machine, comprising a base (1), characterized in that: The body (2) is fixedly installed on the upper surface of the base (1). A concave block (6) is connected to the upper surface of the base (1) near the front via a rotating lifting mechanism. Two lifting rollers (9) are rotatably installed on the upper end of the concave block (6). Two connecting frames (11) are connected to the front surface of the body (2) via an XY axis control mechanism. Rotating plates (16) are connected to the sides of the two connecting frames (11) that are close to each other via a rotating mechanism. Two side clamps (18) and two inner clamps (19) are slidably inserted into one side of the rotating plate (16). An adjusting mechanism is provided between the two side clamps (18) and the two inner clamps (19). A connecting ring (24) is fixedly connected to the sides of the two rotating plates (16) that are close to each other. A rubber ring (25) is fixedly connected to one side surface of the connecting ring (24). The rubber ring (25) passes between the inner clamps (19) and the side clamps (18).

2. The optical rolling bearing testing machine according to claim 1, characterized in that: The rotating lifting mechanism includes a telescopic cylinder (4) fixedly installed on the inner bottom surface of the base (1). A servo turntable (3) is fixedly installed at the telescopic end of the telescopic cylinder (4). The servo turntable (3) slides through the upper surface of the base (1). An installation plate (5) is fixedly installed at the output end of the servo turntable (3). The upper surface of the installation plate (5) is fixedly connected to the lower end of the concave block (6).

3. The optical rolling bearing testing machine according to claim 1, characterized in that: The XY axis control mechanism includes a longitudinal rail (32) fixedly installed on one side surface of the machine body (2). A longitudinal slide (31) is slidably connected to one side surface of the longitudinal rail (32) in the front-back direction. A longitudinal lead screw (33) is rotatably installed on the inner side of the longitudinal rail (32). The longitudinal lead screw (33) is threaded through the inner side of the longitudinal slide (31). A second drive motor (34) is fixedly installed at the rear end of the longitudinal rail (32). The output shaft of the second drive motor (34) is fixed to the rear end of the longitudinal lead screw (33). A transverse rail (28) is fixedly installed at the front end of the longitudinal slide (31). A distance control mechanism is provided between the front surface of the transverse rail (28) and the two connecting frames (11).

4. The optical rolling bearing testing machine according to claim 3, characterized in that: The distance control mechanism includes two transverse slides (27) slidably connected to the front surface of the transverse rail (28). A transverse sliding plate (26) is fixedly installed on the front surface of the transverse slide (27). The upper end of the front surface of the transverse sliding plate (26) is fixedly connected to the rear end of the connecting frame (11). A transverse lead screw (29) is rotatably installed on the inner side of the transverse rail (28). The transverse lead screw (29) is threaded through the inner side of the transverse slide (27). A first drive motor (30) is fixedly installed on one side surface of the transverse rail (28). The output shaft of the first drive motor (30) is fixed to one end of the transverse lead screw (29).

5. The optical rolling bearing testing machine according to claim 1, characterized in that: The rotating mechanism includes a mounting base (12) fixedly installed at the front end of the connecting frame (11). A servo motor (13) is fixedly installed on one side surface of the mounting base (12). A rotating shaft (14) is fixedly installed on the output shaft of the servo motor (13). The rotating shaft (14) rotates through the inner side of the mounting base (12). A connecting block (15) is fixedly connected to one side surface of the rotating plate (16) near the mounting base (12). One end of the rotating shaft (14) is fixedly connected to one side surface of the connecting block (15).

6. The optical rolling bearing testing machine according to claim 1, characterized in that: The adjusting mechanism includes end plates (21) fixedly connected to both ends of the rotating plate (16). A threaded rod (22) is rotatably installed between the two end plates (21). Four sliding openings (17) are provided through one side surface of the rotating plate (16). The side clamping block (18) and the inner clamping block (19) slide through the inner side of the sliding opening (17). The upper surface of the two inner clamping blocks (19) and the lower surface of the two side clamping blocks (18) are respectively extended with bending blocks (20). One threaded rod (22) is threaded through the two bending blocks (20) above, and the other threaded rod (22) is threaded through the two bending blocks (20) below. A rotating head (23) is fixedly connected to one end of the threaded rod (22).

7. The optical rolling bearing testing machine according to claim 1, characterized in that: A detection camera (35) is fixedly embedded on the front surface of the body (2).

8. The optical rolling bearing testing machine according to claim 1, characterized in that: Two connecting seats (7) are fixedly connected to the front and rear upper ends of the concave block (6), and a collar (8) is fixedly connected to the upper end of the connecting seat (7). The lifting roller (9) is located between the two collars (8), and a rotating column (10) is fixedly connected to the two end faces of the lifting roller (9). The rotating column (10) rotates through the inner side of the collar (8).

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