A bearing surface inspection apparatus

Abstract

This invention relates to the field of bearing testing technology, specifically to a bearing surface testing device, including a positioning device. Bearings are equidistantly placed inside the top of the positioning device. A displacement component is slidably connected to the bottom of the positioning device. The displacement component includes a receiving device and a feeding device. The receiving device is fixedly installed inside the bottom of the feeding device. The receiving device includes a receiving chassis, a counterweight, a support cavity, a first spring, a hexagonal rod, a movable crossbar, a support shaft, a blocking arc plate, a first rack, a first gear, a side support, a first piston rod, an extension crossbar, a second piston rod, and a second piston rod. The first spring is fixedly installed inside the bottom of the support cavity, and the movable crossbar is fixedly installed at the top of the first spring. The hexagonal rod slides through the top of the support cavity and connects to the movable crossbar. Through the placement of the displacement component and the positioning device, the bearing testing equipment achieves the purpose of performing annular bearing testing and guiding transport during operation.

Description

Technical Field

[0001] This invention relates to the field of bearing testing technology, specifically a bearing surface testing device. Background Technology

[0002] Bearing surface inspection is a crucial step in assessing the surface quality of key components such as the inner and outer rings, rolling elements, and cages of bearings. It primarily utilizes non-destructive testing technologies such as eddy current testing, magnetic particle testing, machine vision, and laser scanning. These devices can efficiently identify microscopic defects on the bearing surface, including cracks, scratches, rust, pitting, pitting, abrasion, and peeling. They can even detect surface roughness changes at the micrometer level. Through high-precision camera imaging or sensor signal analysis, the system can automatically identify and reject defective products, thereby preventing stress concentration, lubrication film damage, and premature fatigue failure caused by surface defects. In automated bearing production lines, surface inspection equipment is typically integrated after grinding or ultra-precision machining processes, achieving 100% online screening of product appearance quality and ensuring the safety and durability of bearings under harsh conditions such as high speeds and heavy loads.

[0003] Currently, existing bearing visual inspection equipment, due to the fixed positioning of the bearing and the visual inspection camera, can only inspect the bearing in a specified direction. At the same time, the handling of the bearing requires external transmission equipment, which increases costs. As a result, existing bearing inspection equipment cannot achieve the functions of bearing ring inspection and guided conveying during operation. Therefore, an improved device is needed to address the above problems. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a bearing surface inspection device.

[0005] The technical solution adopted by this invention to solve its technical problem is: a bearing surface inspection device, including a positioning device, bearings are equidistantly placed inside the top of the positioning device, and a displacement component is slidably sleeved at the bottom of the positioning device. The displacement component includes a receiving device and a feeding device. The receiving device is fixedly installed at the bottom of the feeding device. The receiving device includes a receiving chassis, a counterweight, a supporting cavity, a first spring, a hexagonal rod, a movable crossbar, a supporting shaft, a blocking arc plate, a first rack, a first gear, a side bracket, a first piston rod, an extension crossbar, a second piston rod, and a second piston rod. The first spring is fixedly installed at the bottom of the supporting cavity, and the movable crossbar is fixedly installed at the top of the first spring. The hexagonal rod slides through the top of the supporting cavity and connects with the movable crossbar. The crossbar is connected, the side end brackets are fixedly installed on the top two sides of the hexagonal bar, the support shaft is rotatably installed between the two side end brackets, the first gear is fixedly installed at the center of both ends of the support shaft, the receiving chassis is fixedly installed at the top of the support shaft, the blocking arc plate is fixedly installed between the two side end brackets and the blocking arc plate is located above the support shaft, the extension crossbar is fixedly installed on the top two sides of the hexagonal bar and the extension crossbar is located below the side end brackets, the second piston rod is fixedly installed at the end of the extension crossbar away from the side end bracket, the second piston rod is slidably inserted into the bottom end of the second piston rod, the first piston rod is slidably inserted into the top end of the second piston rod, and the first rack is fixedly installed on the side end of the first piston rod away from the second piston rod.

[0006] Specifically, the feeding device includes a support base plate, a vision inspection camera, a shaped support platform, a positioning sleeve, a third piston rod, a fourth piston rod, a second L-shaped air cylinder, and a second gear. The vision inspection camera is fixedly installed at one top end of the support base plate. The shaped support platform is fixedly installed at the bottom end of the support base plate near the vision inspection camera. The second gear is rotatably installed at the top inner part of the shaped support platform away from the vision inspection camera. The second L-shaped air cylinder is fixedly installed on both sides of the shaped support platform. The fourth piston rod is slidably inserted into the bottom end of the second L-shaped air cylinder. The third piston rod is slidably inserted into the top end of the second L-shaped air cylinder. The positioning sleeve is fixedly installed at the bottom end of the shaped support platform.

[0007] Specifically, the positioning device includes a third rack, a lead screw, a drive motor, a support base, a baffle, a guide rod, a diverter plate, a positioning cavity, an extension rod, a sealing disc, and a magnetic absorbing plate. The drive motor is fixedly installed at the bottom front end of the support base, the lead screw is fixedly installed at the center rear end of the drive motor, the baffle is symmetrically fixedly installed at the front interior of the support base, the positioning cavity is fixedly installed at the rear top of the support base, the guide rod is symmetrically fixedly installed at the bottom interior of the support base, the diverter plate is fixedly installed at the bottom interior of the support base and is located above the guide rod, the third rack is fixedly installed at the side interior of the support base, the extension rod is symmetrically fixedly installed at the bottom rear end of the positioning cavity, the sealing disc is slidably sleeved on the outer ring of the extension rod, and the magnetic absorbing plate is fixedly installed at the bottom front end of the sealing disc.

[0008] Specifically, the positioning sleeve is slidably sleeved on the outer ring of the splitter plate and the guide rod, the hexagonal rod is slidably inserted into the inside of the second gear, and the first rack meshes with the first gear.

[0009] Specifically, a strong magnetic absorbing plate is fixedly installed at the bottom of the supporting cavity, the interior of the second piston rod is hollow, and a sealed cavity is formed between the first piston rod, the second piston rod, and the second piston rod.

[0010] Specifically, the movable crossbar is arranged in an arc shape near the bottom of the supporting cavity, the interior of the second L-shaped air cylinder is hollow, and a sealed cavity is formed between the third piston rod, the fourth piston rod, and the second L-shaped air cylinder.

[0011] Specifically, the second gear has a hexagonal hole inside, the bearing substrate has a through hole inside, and the baffle is horizontally aligned with the third piston rod.

[0012] Specifically, the top two sides of the diversion plate are inclined at 45°, and a plastic sheet is fixedly installed on the top of the diversion plate. The magnetic sheet is horizontally aligned with the supporting substrate. A discharge groove is opened at the bottom of the positioning cavity, and the thickness of the bearing is the same as the height of the discharge groove.

[0013] The beneficial effects of this invention are:

[0014] First, when the second gear moves along the surface of the third rack, it can drive the receiving chassis to rotate. The receiving chassis can receive the rotating bearing. When the bearing is placed on the receiving chassis, it is horizontally aligned with the visual inspection camera, so that the bearing can be inspected in a ring. Furthermore, the receiving chassis can move up and down inside the support substrate, so that the bearing can be removed from the inside of the support substrate. When the counterweight is blocked by the irregular support platform, the first rack can drive the first gear and the receiving chassis to rotate, so that the bearing can be guided out of the receiving chassis, thus completing the work of bearing ring inspection.

[0015] Second, when the drive motor is running, the positioning sleeve can be displaced by the lead screw, so that the bearing base plate can move the bearing out of the positioning cavity. Thus, the sealing plate can isolate the bearing above the positioning cavity. At the same time, the bearing base plate can also disengage from the magnetic absorbing plate, which facilitates the continuous displacement of the bearing base plate. When the bearing base plate moves the third piston rod to contact the baffle, the fourth piston rod can press the movable crossbar downward, so that the hexagonal rod can drive the receiving base to move downward, which can support the bearing to move downward, and complete the bearing guiding and conveying work. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a three-dimensional structural diagram of the main body from a frontal perspective in this invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the displacement component from a frontal view in this invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the receiving device from the front view in this invention;

[0020] Figure 4 In this invention Figure 3 A magnified view of part A;

[0021] Figure 5 This is a partial cross-sectional schematic diagram of the feeding device in this invention;

[0022] Figure 6 This is a three-dimensional structural diagram of the feeding device from a lower perspective in this invention;

[0023] Figure 7 This is a three-dimensional structural diagram of the positioning device from the front view in this invention;

[0024] Figure 8 This is a three-dimensional structural diagram of the positioning device from the rear view in this invention.

[0025] In the diagram: 1-Displacement component, 2-Positioning device, 3-Bearing, 4-Receiving device, 5-Feeding device, 6-Receiving chassis, 7-Counterweight, 8-Supporting cavity, 9-First spring, 10-Hexagonal rod, 11-Modible crossbar, 12-Supporting shaft, 13-Blocking arc plate, 14-First rack, 15-First gear, 16-Side end bracket, 17-First piston rod, 18-Extension crossbar, 19-Second piston rod, 20-First L-shaped air cylinder 21-Bearing substrate, 22-Visual inspection camera, 23-Irregular support platform, 24-Positioning sleeve, 25-Third piston rod, 26-Fourth piston rod, 27-Second L-shaped air cylinder, 28-Second gear, 34-Third rack, 35-Lead screw, 36-Drive motor, 37-Support base, 38-Blocking frame, 39-Guide round rod, 40-Diverter plate, 42-Positioning cavity, 43-Extension support rod, 44-Sealing plate, 45-Magnetic suction plate. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0027] The invention will be further described below with reference to the accompanying drawings.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a bearing surface inspection device of the present invention includes a positioning device 2. Bearings 3 are equidistantly placed inside the top of the positioning device 2. A displacement component 1 is slidably sleeved inside the bottom of the positioning device 2. The displacement component 1 includes a receiving device 4 and a feeding device 5. The receiving device 4 is fixedly installed inside the bottom of the feeding device 5. The receiving device 4 includes a receiving chassis 6, a counterweight 7, a support cavity 8, a first spring 9, a hexagonal rod 10, a movable crossbar 11, a support shaft 12, a blocking arc plate 13, a first rack 14, a first gear 15, a side end bracket 16, a first piston rod 17, an extension crossbar 18, a second piston rod 19, and a second piston rod 20. The first spring 9 is fixedly installed inside the bottom of the support cavity 8, and the movable crossbar 11 is fixedly installed at the top of the first spring 9. The hexagonal rod 10 slides through the top of the support cavity 8 and the movable crossbar 11. The connection is as follows: side brackets 16 are fixedly installed on the top two sides of the hexagonal rod 10; support shaft 12 is rotatably installed between the two side brackets 16; first gear 15 is fixedly installed at the center of both ends of support shaft 12; receiving chassis 6 is fixedly installed at the top of support shaft 12; blocking arc plate 13 is fixedly installed between the two side brackets 16 and is located above support shaft 12; extension crossbeam 18 is fixedly installed on the top two sides of the hexagonal rod 10 and is located below side brackets 16; second piston rod 20 is fixedly installed at the end of extension crossbeam 18 away from side brackets 16; second piston rod 19 is slidably inserted into the bottom of the inside of second piston rod 20; first piston rod 17 is slidably inserted into the top of the inside of second piston rod 20; and first rack 14 is fixedly installed on the side of first piston rod 17 away from second piston rod 20.

[0029] like Figure 5 and Figure 6 The feeding device 5 includes a support base plate 21, a vision inspection camera 22, a shaped support platform 23, a positioning sleeve 24, a third piston rod 25, a fourth piston rod 26, a second L-shaped air cylinder 27, and a second gear 28. The vision inspection camera 22 is fixedly installed at one top end of the support base plate 21. The shaped support platform 23 is fixedly installed at the bottom end of the support base plate 21 near the vision inspection camera 22. The second gear 28 is rotatably installed at the top end of the shaped support platform 23 away from the vision inspection camera 22. The second L-shaped air cylinder 27 is fixedly installed on both sides of the shaped support platform 23. The fourth piston rod 26 is slidably inserted into the bottom end of the second L-shaped air cylinder 27. The third piston rod 25 is slidably inserted into the top end of the second L-shaped air cylinder 27. The positioning sleeve 24 is fixedly installed at the bottom end of the shaped support platform 23. When the second gear 28 rotates, it can drive the entire support cavity 8 to rotate.

[0030] like Figure 7 and Figure 8The positioning device 2 includes a third rack 34, a lead screw 35, a drive motor 36, a support base 37, a baffle 38, a guide rod 39, a flow divider 40, a positioning cavity 42, an extension support rod 43, a sealing disc 44, and a magnetic absorbing plate 45. The drive motor 36 is fixedly installed at the bottom front end of the support base 37, the lead screw 35 is fixedly installed at the center rear end of the drive motor 36, the baffle 38 is symmetrically fixedly installed inside the front end of the support base 37, the positioning cavity 42 is fixedly installed at the rear top of the support base 37, and the guide rod 39 is symmetrically fixedly installed inside the support base 37. The diverter plate 40 is fixedly installed at the bottom of the support base 37 and is located above the guide rod 39. The third rack 34 is fixedly installed at the side of the support base 37. The extension rod 43 is symmetrically fixedly installed at the bottom of the rear end of the positioning cavity 42. The sealing plate 44 is slidably sleeved on the outer ring of the extension rod 43. The magnetic suction plate 45 is fixedly installed at the bottom of the front end of the sealing plate 44. A vertical through hole is provided inside the positioning cavity 42 so that the bearing 3 can be stacked and placed inside the positioning cavity 42.

[0031] The positioning sleeve 24 is slidably sleeved on the outer ring of the diverter plate 40 and the guide rod 39. The hexagonal rod 10 is slidably inserted into the inside of the second gear 28. The first rack 14 meshes with the first gear 15. A strong magnetic suction plate is fixedly installed at the bottom of the support cavity 8. The inside of the second piston rod 20 is hollow, and a sealed cavity is formed between the first piston rod 17, the second piston rod 20, and the second piston rod 19. The movable crossbar 11 is arc-shaped near the bottom of the support cavity 8. The inside of the second L-shaped air cylinder 27 is hollow, and the third piston rod 2... 5. A sealed cavity is formed between the fourth piston rod 26 and the second L-shaped air cylinder 27. The third rack 34 is horizontally aligned with the second gear 28. The second gear 28 has a hexagonal hole inside. The bearing base plate 21 has a through hole inside. The baffle 38 is horizontally aligned with the third piston rod 25. The top two sides of the diverter plate 40 are inclined at 45°. A plastic sheet is fixedly installed on the top of the diverter plate 40. The magnetic suction sheet 45 is horizontally aligned with the bearing base plate 21. A discharge groove is opened at the bottom of the positioning cavity 42. The thickness of the bearing 3 is the same as the height of the discharge groove.

[0032] The working principle is as follows: In use, the bearing 3 is first placed into the round hole inside the positioning cavity 42. When the receiving base 6 is in its normal state, it can be located inside the bearing substrate 21, allowing the receiving base 6 to support the bearing 3. Then, the drive motor 36 is turned on, driving the lead screw 35 to rotate. The positioning sleeve 24 is threaded onto the outer ring of the lead screw 35, so that when the lead screw 35 rotates, it can drive the positioning sleeve 24 to move towards the front. At this time, the bearing substrate 21 and the magnetic suction plate 45 adhere to each other, allowing the bearing substrate 21 to move. The magnetic suction plate 45 can then drive the sealing disc 44 into the positioning cavity 42. When the receiving base 6 moves the bearing 3 at the bottom of the positioning cavity 42, the sealing disc 44 can displace the bearing 3. The bearing 3 inside the upper part of the 2nd cavity is separated to prevent the bearing 3 from falling downwards prematurely. Subsequently, when the support substrate 21 is moved out from the bottom of the positioning cavity 42, the support substrate 21 can disengage from the magnetic chuck 45, and the support substrate 21 can continue to move. At this time, the support substrate 21 can drive the second gear 28 to move along the surface of the third rack 34, so that the second gear 28 can rotate. The hexagonal rod 10 is slidably inserted into the hexagonal hole inside the second gear 28, so that when the second gear 28 rotates, it can drive the hexagonal rod 10 and the receiving base 6 to rotate simultaneously. When the receiving base 6 rotates, it can drive the bearing 3 to rotate, and the vision inspection camera 22 is in operation. When the second gear 28 moves past the third rack 34, the receiving base 6 can drive the bearing 3 to rotate. The bearing 3 can be inspected from all angles by moving 360°. Then, as the supporting base plate 21 continues to move, it moves the third piston rod 25 to contact the baffle 38. Restricted by the baffle 38, the third piston rod 25 can enter the interior of the second L-shaped air cylinder 27, allowing the fourth piston rod 26 to move downwards. When the fourth piston rod 26 moves downwards, it pushes the movable crossbar 11 downwards. At this time, the hexagonal rod 10 can move the receiving base 6 downwards from the interior of the supporting base plate 21, thus removing the receiving base 6 from the interior of the supporting base plate 21. Then, as the hexagonal rod 10 continues to move downwards, it can cause the counterweight 7 to contact the top of the irregular support platform 23, allowing the second piston rod 19 to enter the interior of the second piston rod 20. The first piston rod 17 can drive the first rack 14 to move along the surface of the first gear 15, which can drive the support shaft 12 and the receiving chassis 6 to rotate and tilt away from the end of the second piston rod 20. When the receiving chassis 6 tilts, the bearing 3 can slide down along the surface of the receiving chassis 6 and fall. Through the alignment of the diverter plate 40 with the hexagonal rod 10, the bearing 3 can fall to the top of the diverter plate 40. The top two sides of the diverter plate 40 are inclined at 45°, so that the tested bearing 3 can slide to both sides and be discharged. Furthermore, a plastic sheet is fixedly installed on the top of the diverter plate 40 to prevent the bearing 3 from being damaged by impact. Subsequently, the drive motor 36 can be turned on to drive the lead screw 35 to rotate in the opposite direction, driving the bearing base plate 21 to move to the rear end and reset. At this time,The third piston rod 25 will disengage from the baffle 38. The elasticity of the first spring 9 will cause the movable crossbar 11 and the hexagonal rod 10 to move upwards and reset. When the hexagonal rod 10 resets, it will simultaneously cause the receiving base 6 to move upwards and reset. Meanwhile, because the receiving base 6 is made of plastic and the weight of the counterweight 7 is greater than the weight of the receiving base 6, when the hexagonal rod 10 resets upwards, it will cause the counterweight 7 to disengage from the irregular support platform 23. This allows the second piston rod 19 to move downwards inside the second piston rod 20, causing the first rack 14 to move in the opposite direction along the top of the first gear 15. This will cause the support shaft 12 and the receiving base 6 to rotate upwards and reset until the bottom of the receiving base 6 contacts the blocking arc plate 13. The blocking arc plate 13 restricts the receiving base 6, ensuring it is placed vertically, facilitating its re-entry into the bearing base. The bearing 3 is received inside the plate 21. Simultaneously, when the supporting plate 21 is reset, it can also push the sealing disc 44 out from inside the positioning cavity 42, allowing the bearing 3 above the positioning cavity 42 to fall downwards onto the receiving base 6, completing the refilling of the bearing 3. The sealing disc 44 can slide on the outer ring of the extension rod 43, supporting its linear movement and improving the accuracy of the connection between the bearing 3 and the receiving base 6. In use, the second gear 28 rotates, causing the receiving base 6, the movable crossbar 11, and the supporting cavity 8 to rotate as a whole. Simultaneously, the bottom end of the supporting cavity 8 is always adhered to the bottom end of the irregular support platform 23, preventing vertical displacement of the supporting cavity 8. Furthermore, the tension of the first spring 9 is greater than the total weight of the multiple bearings 3, ensuring the support of the bearing 3.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bearing surface inspection device, comprising a positioning device (2), wherein bearings (3) are equidistantly placed inside the top end of the positioning device (2), and a displacement component (1) is slidably sleeved at the bottom end of the positioning device (2), characterized in that: The displacement component (1) includes a receiving device (4) and a feeding device (5). The receiving device (4) is fixedly installed at the bottom of the inside of the feeding device (5). The receiving device (4) includes a receiving chassis (6), a counterweight (7), a supporting cavity (8), a first spring (9), a hexagonal rod (10), a movable crossbar (11), a supporting shaft (12), a blocking arc plate (13), a first rack (14), a first gear (15), a side bracket (16), a first piston rod (17), an extension crossbar (18), a second piston rod (19), and a second piston rod (20). The first spring (9) is fixedly installed at the bottom of the inside of the supporting cavity (8). The movable crossbar (11) is fixedly installed at the top of the first spring (9). The hexagonal rod (10) slides through the top of the supporting cavity (8) and connects with the movable crossbar (11). The side bracket (16) is fixedly installed at the top of both sides of the hexagonal rod (10). The supporting shaft (12) The first gear (15) is fixedly installed at the center of both ends of the support shaft (12), the receiving chassis (6) is fixedly installed at the top of the support shaft (12), the blocking arc plate (13) is fixedly installed between the two side supports (16), and the blocking arc plate (13) is located above the support shaft (12), the extension crossbar (18) is fixedly installed at the top of both sides of the hexagonal rod (10), and the extension crossbar (18) is located below the side supports (16), the second piston rod (20) is fixedly installed at the end of the extension crossbar (18) away from the side supports (16), the second piston rod (19) is slidably inserted into the bottom of the second piston rod (20), the first piston rod (17) is slidably inserted into the top of the second piston rod (20), and the first rack (14) is fixedly installed on the side of the first piston rod (17) away from the second piston rod (20).

2. The bearing surface inspection device according to claim 1, characterized in that: The feeding device (5) includes a support base plate (21), a vision inspection camera (22), a special-shaped support platform (23), a positioning sleeve (24), a third piston rod (25), a fourth piston rod (26), a second L-shaped air cylinder (27), and a second gear (28). The vision inspection camera (22) is fixedly installed at one top end of the support base plate (21). The special-shaped support platform (23) is fixedly installed at the bottom end of the support base plate (21) near the vision inspection camera (22). The second gear (28) is rotatably installed at the top end of the special-shaped support platform (23) away from the vision inspection camera (22). The second L-shaped air cylinder (27) is fixedly installed on both sides of the special-shaped support platform (23). The fourth piston rod (26) is slidably inserted into the bottom end of the second L-shaped air cylinder (27). The third piston rod (25) is slidably inserted into the top end of the second L-shaped air cylinder (27). The positioning sleeve (24) is fixedly installed at the bottom end of the special-shaped support platform (23).

3. The bearing surface inspection device according to claim 2, characterized in that: The positioning device (2) includes a third rack (34), a lead screw (35), a drive motor (36), a support base (37), a baffle (38), a guide rod (39), a diverter plate (40), a positioning cavity (42), an extension rod (43), a sealing plate (44), and a magnetic absorbing plate (45). The drive motor (36) is fixedly installed at the bottom front end of the support base (37), the lead screw (35) is fixedly installed at the center rear end of the drive motor (36), the baffle (38) is symmetrically fixedly installed at the front end inside the support base (37), and the positioning cavity (42) is fixedly installed at the bottom front end of the support base (37). At the top rear of the seat (37), the guide rod (39) is symmetrically fixedly installed at the bottom of the inner side of the support base (37), the diverter plate (40) is fixedly installed at the bottom of the inner side of the support base (37), and the diverter plate (40) is located above the guide rod (39). The third rack (34) is fixedly installed at the inner side of the support base (37). The extension rod (43) is symmetrically fixedly installed at the bottom of the rear end of the positioning cavity (42). The sealing plate (44) is slidably sleeved on the outer ring of the extension rod (43). The magnetic suction plate (45) is fixedly installed at the bottom of the front end of the sealing plate (44).

4. The bearing surface inspection device according to claim 3, characterized in that: The positioning sleeve (24) is slidably sleeved on the outer ring of the diverter plate (40) and the guide rod (39), the hexagonal rod (10) is slidably inserted into the inside of the second gear (28), and the first rack (14) meshes with the first gear (15).

5. The bearing surface inspection device according to claim 4, characterized in that: A strong magnetic plate is fixedly installed at the bottom of the support cavity (8). The interior of the second piston rod (20) is hollow, and a sealed cavity is formed between the first piston rod (17), the second piston rod (20), and the second piston rod (19).

6. The bearing surface inspection device according to claim 5, characterized in that: The movable crossbar (11) is arranged in an arc shape near the bottom of the support cavity (8), the interior of the second L-shaped air cylinder (27) is hollow, and a sealed cavity is formed between the third piston rod (25), the fourth piston rod (26) and the second L-shaped air cylinder (27).

7. The bearing surface inspection device according to claim 6, characterized in that: The second gear (28) has a hexagonal hole inside, the bearing base plate (21) has a through hole inside, and the baffle (38) is horizontally aligned with the third piston rod (25).

8. The bearing surface inspection device according to claim 7, characterized in that: The top two sides of the diversion plate (40) are inclined at 45°, and a plastic sheet is fixedly installed on the top of the diversion plate (40). The magnetic sheet (45) is horizontally aligned with the supporting substrate (21). The bottom of the positioning cavity (42) is provided with a discharge groove, and the thickness of the bearing (3) is the same as the height of the discharge groove.

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