Bearing concentricity detection device

Abstract

The utility model provides a bearing concentricity detection device, which belongs to the technical field of bearing production detection equipment and comprises rollers symmetrically arranged on an operation machine table, a main rotating shaft is arranged at the front end of each roller, a motor is arranged at the front end of each main rotating shaft, a main sliding groove is formed in the bottom of each motor, and a main sliding block is arranged in each main sliding groove. A first threaded lead screw is arranged on one side of the main sliding block, a driven assembly is arranged on the rear side of the idler wheel, a first measuring meter is arranged on the rear side of the bearing inner ring, and a second measuring meter is arranged on one side of the bearing outer ring. According to the utility model, the rollers and the driven slide blocks on the driven assembly move synchronously, so that the transverse distance between the two rollers is adjusted, bearings of different sizes can be clamped between the two rollers, and the inner rings and the outer rings of the bearings are read through the first measuring meter and the second measuring meter respectively, so that the bearings of different sizes can be measured.

Description

Technical Field

[0001] This utility model relates to the technical field of bearing production and testing equipment, specifically to a bearing concentricity testing device. Background Technology

[0002] In mechanical engineering, bearings are critical components, and their concentricity is of paramount importance. Concentricity refers to the degree to which the centers of two or more circular elements coincide within the same plane. For bearings, good concentricity between the inner and outer rings ensures smooth rotation, reduces wear, extends bearing life, and thus guarantees the stability and precision of the entire mechanical system. For example, in high-speed, high-precision mechanical devices such as engines and precision machine tools, even minute deviations in bearing concentricity can lead to severe performance degradation or even malfunction.

[0003] In related technologies, when testing the concentricity of bearings, one end of the bearing to be tested is usually placed between two rollers, and a pressure roller device is used on top to press and position the bearing held between the rollers. A measuring gauge for measuring the concentricity of the inner ring of the bearing is set on one side, and a measuring gauge for measuring the concentricity of the outer ring of the bearing is set on the outer ring. The measuring gauge usually consists of components such as a dial indicator and a test probe. The concentricity of the part to be tested is calculated by measuring the circumference runout of the dial indicator or the contact test probe.

[0004] However, most existing rollers are fixedly mounted on a fixed base. When it is necessary to measure bearings of different sizes, it is inconvenient to adjust them, which requires changing the measuring instrument and makes the use more troublesome. In order to solve the above problems, a bearing concentricity detection device is proposed. Utility Model Content

[0005] In view of this, the present invention provides a bearing concentricity detection device. The present invention uses the rotation of the first threaded screw to drive the motor on the support rod to move, and simultaneously moves the roller and the driven slider on the driven assembly, thereby adjusting the lateral distance between the two rollers. This allows bearings of different sizes to be clamped between the two rollers. The inner and outer rings of the bearing are read by the first and second measuring instruments, respectively, thereby measuring bearings of different sizes.

[0006] To solve the above-mentioned technical problems, this utility model provides a bearing concentricity detection device, including rollers symmetrically arranged on an operating platform, a bearing mounted on the upper part of the two rollers, a pressure roller device mounted on the upper part of the bearing, a main rotating shaft at the front end of each roller, a motor at the front end of each main rotating shaft, a support rod at the bottom of each motor, a main sliding groove at the bottom of the support rod, a main slider on the lower surface of each support rod, each main slider slidingly engaging with the main sliding groove, a first threaded screw on the side of each main slider away from the bearing center, a driven component at the rear of the rollers, a first measuring gauge at the rear of the inner ring of the bearing, and a second measuring gauge at one side of the outer ring of the bearing.

[0007] The driven assembly includes a driven shaft rotatably connected to the rear end of each roller, which rotates with the main shaft. Each driven shaft has a base at its rear end, which secures the driven shaft and connects it to a positioning block, thereby connecting the roller to the positioning block, and further connecting the motor to the main shaft and the positioning block. Each base has a positioning block at its rear end, which connects the base to a positioning rod, thus supporting the roller. Each positioning block has a positioning rod at its bottom, which supports the positioning block and the driven shaft. The bottom of the positioning rod has a driven groove for movement of the driven slider. Each positioning rod has a driven slider on its lower surface, which drives the positioning rod to move within the driven groove. The driven slider and the driven groove slide together.

[0008] A first pitch mechanism is provided on the side of the first measuring instrument away from the bearing. The first pitch mechanism is used to adjust the vertical angle of the first measuring instrument. A first connecting block is provided on the side of the first pitch mechanism away from the bearing. The first connecting block is used to connect the first pitch mechanism to the first threaded rod. The first threaded rod is provided through the middle of the first connecting block. The first threaded rod can make the first measuring instrument move up and down more accurately.

[0009] A first slide rail is provided at the lower part of the first threaded rod. The first slide rail is used to move the first slider. A first slider is provided inside the first slide rail. The first slider is used to drive the first threaded rod to move within the first slide rail. The top of the first slider is connected to the bottom of the first threaded rod. A second threaded screw is provided on the side of the first slider away from the bearing. The second threaded screw is used to more accurately adjust the distance between the first measuring gauge and the inner ring of the bearing, so as to make the concentricity measurement of the inner ring more accurate. A first support plate is provided at the bottom of the first slide rail. The first support plate is used to support and fix the first slide rail, and also to connect the first slide rail and the components mounted on it to the first robotic arm.

[0010] A first robotic arm is installed at the bottom of the first support plate. The first robotic arm is used to adjust the distance between the first measuring gauge and the inner ring of the bearing at a large angle. The bottom of the first robotic arm is connected to the bearing surface of the operating table.

[0011] A second pitch mechanism is provided on the side of the second measuring instrument away from the bearing. The second pitch mechanism is used to adjust the vertical angle of the second measuring instrument. A second connecting block is provided on the side of the second pitch mechanism away from the bearing. The second connecting block is used to connect the second pitch mechanism to the second threaded rod. The second threaded rod is provided through the middle of the second connecting block. The second threaded rod can make the second measuring instrument move up and down more accurately.

[0012] A second slide rail is provided at the lower part of the second threaded rod. The second slide rail is used to move the second slider. A second slider is provided inside the second slide rail. The second slider is used to drive the second threaded rod to move within the second slide rail. The top of the second slider is connected to the bottom of the second threaded rod. A third threaded screw is provided on the side of the second slider away from the bearing. The third threaded screw is used to more accurately adjust the distance between the second measuring gauge and the outer ring of the bearing, so as to make the concentricity measurement of the outer ring more accurate. A second support plate is provided at the bottom of the second slide rail. The second support plate is used to support and fix the second slide rail, and also to connect the second slide rail and the components mounted on it to the second robotic arm.

[0013] A second robotic arm is installed at the bottom of the second support plate. The second robotic arm is used to adjust the distance between the second measuring gauge and the outer ring of the bearing at a large angle. The bottom of the second robotic arm is connected to the bearing surface of the operating table.

[0014] A baffle is provided at the front of the bearing to prevent the bearing from falling off during rotation. An electric push rod is provided at the front of the baffle to adjust the distance between the baffle and the bearing. A support frame is provided at the bottom of the drive end of the electric push rod to support and fix the drive end of the electric push rod.

[0015] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0016] 1. The rotation of the first threaded screw causes the main slider to move the motor on the support rod, which in turn moves the roller and the driven slider on the driven assembly, thereby adjusting the lateral distance between the two rollers. This allows bearings of different sizes to be clamped between the two rollers. The inner and outer rings of the bearings are read by the first and second measuring instruments, respectively, thus allowing the measurement of bearings of different sizes.

[0017] 2. The first measuring instrument is adjusted up and down by the first threaded rod, and the tilting mechanism adjusts the tilt angle of the probe on the first measuring instrument, so that the concentricity measurement of the inner ring of the bearing can be more accurate.

[0018] 3. By adjusting the second robotic arm, the distance between the second measuring instrument and the outer ring of the bearing is adjusted. Then, the second measuring instrument is adjusted up and down by the second threaded rod. The second pitch mechanism adjusts the tilt angle of the probe on the second measuring instrument, so that the concentricity measurement of the outer ring of the bearing can be more accurate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This utility model Figure 1 A magnified view of part A;

[0021] Figure 3 This utility model Figure 1 A magnified view of part B;

[0022] Figure 4 This is a front sectional view of the present invention.

[0023] Explanation of reference numerals in the attached drawings: 100, operating platform; 101, roller; 102, bearing; 103, pressure roller device; 200, main rotating shaft; 201, motor; 202, support rod; 203, main slide groove; 204, main slider; 205, first threaded screw; 300, driven assembly; 301, driven shaft; 302, base; 303, positioning block; 304, positioning rod; 305, driven slide groove; 306, driven slider; 400, first measuring gauge; 401, first pitch mechanism; 402, first connection. 403. First threaded rod; 404. First slide rail; 405. First slider; 406. Second threaded screw; 407. First support plate; 408. First robotic arm; 500. Second measuring gauge; 501. Second pitch mechanism; 502. Second connecting block; 503. Second threaded rod; 504. Second slide rail; 505. Second slider; 506. Third threaded screw; 507. Second support plate; 508. Second robotic arm; 600. Baffle; 601. Electric push rod; 602. Support frame. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0025] like Figure 1-4As shown: This embodiment provides a bearing concentricity detection device, including rollers 101 symmetrically arranged on an operating platform 100, bearings 102 arranged on the upper part of the two rollers 101, and a pressure roller device 103 arranged on the upper part of the bearings 102. The pressure roller device 103 includes a rotating roller, a fixed plate, a linkage block, a lifting groove, and a lifting adjustment rod. Each roller 101 has a main rotating shaft 200 at its front end. One end of the main rotating shaft 200 is rotatably connected to the roller 101, and the other end of the main rotating shaft 200 is rotatably connected to a motor 201 through a coupling. Each main rotating shaft 200 has a motor 201 at its front end. The bottom of the motor 201 is provided with a base plate and a support rod 202, which are fixed by bolts. The two motors 201 are connected to a controller to make the two motors 201 work synchronously. Each motor 201 has a support rod 202 at its bottom, and the lower end of the support rod 202 is connected to... The main slider 204 is fixed by bolt connection. The bottom of the support rod 202 is provided with a main slide groove 203. Each support rod 202 has a main slider 204 on its lower surface. Each main slider 204 slides in cooperation with the main slide groove 203. Each main slider 204 has a first threaded screw 205 on the side away from the center of the bearing 102. The first threaded screw 205 is rotatably connected to the nut embedded in the main slider 204. The rear side of the roller 101 is provided with a driven component 300. The driven component 300 is used to support the other end of the roller 101 and can also make the roller 101 rotate with the main rotating shaft 200. The rear side of the inner ring of the bearing 102 is provided with a first measuring gauge 400. The first measuring gauge 400 is used to measure the concentricity of the inner ring of the bearing 102. One side of the outer ring of the bearing 102 is provided with a second measuring gauge 500. The second measuring gauge 500 is used to measure the concentricity of the outer ring of the bearing 102.

[0026] In use, when it is necessary to measure bearings 102 of different sizes, the first threaded screw 205 is rotated, which causes the main slider 204 to drive the motor 201 on the support rod 202 to move, thereby causing the roller 101 connected to the main rotating shaft 200 to move, so that the driven shaft 301 on the driven assembly 300 follows suit. The positioning rod 304 and the support rod 202 support the roller 101 between the main rotating shaft 200 and the driven shaft 301. The lateral distance between the two rollers 101 is adjusted by the main slider 204 and the driven slider 306. Then, by driving the motors 201 on both sides, the main rotating shaft 200 drives the roller 101 to rotate, which in turn causes the driven shaft 301 to rotate on the base 302, thereby causing the bearings 102 set on the two rollers 101 to rotate, thus achieving the purpose of measuring bearings 102 of different sizes.

[0027] This embodiment provides a bearing 102 concentricity detection device.

[0028] like Figure 1 ,2 As shown in Figures 3 and 4: The driven assembly 300 includes a driven shaft 301 rotatably connected to the rear end of each roller 101. The driven shaft 301 is rotatably connected to the corresponding roller 101 and is used to follow the rotation of the main shaft 200. Each driven shaft 301 has a base 302 at its rear end, which is rotatably connected to the driven shaft 301. The base 302 is used to fix the driven shaft 301 and also to connect the driven shaft 301 to the positioning block 303, thereby connecting the roller 101 to the positioning block 303, and further connecting the motor 201 to the main shaft 200 and the positioning block 303. Each base 302 has a positioning block 303 at its rear end, and the positioning block 303 is connected to the base 302 by screws. The positioning block 303 is used to connect the base 302 and the positioning rod 304, thereby supporting the roller 101. Each positioning block 303 has a positioning rod 304 at its bottom. The positioning rod 304 is fixed to the positioning block 303 by bolts. The positioning rod 304 is used to support the positioning block 303 and the rotating shaft 301. The bottom of the positioning rod 304 is provided with a sliding groove 305. The sliding groove 305 is fixed to the table surface of the operating platform 100 by bolts. The sliding groove 305 is used for the sliding block 306 to move. Each positioning rod 304 has a sliding block 306 on its lower surface. The sliding block 306 is used to drive the positioning rod 304 to move in the sliding groove 305. The sliding block 306 and the sliding groove 305 slide together.

[0029] Its effects are as follows: the rotating shaft 301 is used to rotate with the main rotating shaft 200, the base 302 is also used to connect the rotating shaft 301 to the positioning block 303, thereby connecting the roller 101 to the positioning block 303, the positioning block 303 is used to connect the base 302 to the positioning rod 304, and with the cooperation of the support rod 202, the roller 101 is supported, and the sliding groove 305 is used to move from the slider 306, thereby allowing the roller 101 to also move.

[0030] like Figure 1 , 2As shown in Figure 3: A first pitch mechanism 401 is provided on the side of the first measuring instrument 400 away from the bearing 102. The first pitch mechanism 401 is rotatably connected to the bottom of the first measuring instrument 400 via a pin. The first pitch mechanism 401 is used to adjust the vertical angle of the first measuring instrument 400. A first connecting block 402 is provided on the side of the first pitch mechanism 401 away from the bearing 102. The first connecting block 402 is rotatably connected to the first pitch mechanism 401. The first connecting block 402 is used to connect the first pitch mechanism 401 to the first threaded rod 403. The first threaded rod 403 is provided through the middle of the first connecting block 402. The first threaded rod 403 passes vertically through the first connecting block 402. A threaded hole is provided at the point where it passes through the first connecting block 402. The first threaded rod 403 is threadedly connected to the first connecting block 402. The first threaded rod 403 can make the first measuring instrument 400 more accurately move up and down.

[0031] Its effect is as follows: the first pitch mechanism 401 is used to adjust the up and down angle of the first measuring instrument 400, the first connecting block 402 is used to connect the first pitch mechanism 401 with the first threaded rod 403, the first threaded rod 403 can make the first measuring instrument 400 move up and down more accurately, thereby making the distance between the probe on the first measuring instrument 400 and the inner ring of the bearing 102 more accurately.

[0032] like Figure 1 , 3 As shown: A first slide rail 404 is provided at the lower part of the first threaded rod 403. The first slide rail 404 is fixed to the first support plate 407 by bolts. The first slide rail 404 is used to move the first slider 405. The first slider 405 is provided inside the first slide rail 404. The first slide rail 404 and the first slider 405 are slidably adapted. The first slider 405 is used to drive the first threaded rod 403 to move within the first slide rail 404. The top of the first slider 405 is connected to the bottom of the first threaded rod 403. The first slider 405 is away from the axis. A second threaded screw 406 is provided on one side of the bearing 102. The second threaded screw 406 is connected and fixed to the nut embedded in the first slider 405. The second threaded screw 406 is used to more accurately adjust the distance between the first measuring gauge 400 and the inner ring of the bearing 102, so as to make the concentricity measurement of the inner ring more accurate. A first support plate 407 is provided at the bottom of the first slide rail 404. The first support plate 407 is used to support and fix the first slide rail 404, and also to connect the first slide rail 404 and the components installed on it to the first robotic arm 408.

[0033] Its effects are as follows: the first slide rail 404 is used to move the first slider 405, the first slider 405 is used to drive the first threaded rod 403 to move within the first slide rail 404, the second threaded rod 406 is used to more accurately adjust the distance between the first measuring gauge 400 and the inner ring of the bearing 102, so that the concentricity measurement of the inner ring is more accurate, and the first support plate 407 is used to support and fix the first slide rail 404, and also to connect the first slide rail 404 and the components mounted on it to the first robotic arm 408.

[0034] like Figure 1 , 3 As shown: A first robotic arm 408 is provided at the bottom of the first support plate 407. The first robotic arm 408 includes a base 302 and a manually adjustable joint component. The first robotic arm 408 is used to adjust the distance between the first measuring gauge 400 and the inner ring of the bearing 102 at a large angle. The bottom of the first robotic arm 408 is connected to the bearing surface of the operating table 100.

[0035] Its effect is that the first robotic arm 408 is used to adjust the distance between the first measuring gauge 400 and the inner ring of the bearing 102 at a large angle, and it is also more convenient to read the first measuring gauge 400.

[0036] like Figure 1 , 2 As shown in Figure 4: A second pitch mechanism 501 is provided on the side of the second measuring instrument 500 away from the bearing 102. The second pitch mechanism 501 is rotatably connected to the bottom of the second measuring instrument 500 via a pin. The second pitch mechanism 501 is used to adjust the vertical angle of the second measuring instrument 500. A second connecting block 502 is provided on the side of the second pitch mechanism 501 away from the bearing 102. The second connecting block 502 is rotatably connected to the second pitch mechanism 501. The second connecting block 502 is used to connect the second pitch mechanism 501 to the second threaded rod 503. The second threaded rod 503 is provided through the middle of the second connecting block 502. The second threaded rod 503 passes vertically through the second connecting block 502. A threaded hole is provided at the point where it passes through the second connecting block 502. The second threaded rod 503 is threadedly connected to the second connecting block 502. The second threaded rod 503 allows the second measuring instrument 500 to be adjusted vertically more accurately.

[0037] Its effect is as follows: the second pitch mechanism 501 is used to adjust the up and down angle of the second measuring instrument 500, and the second connecting block 502 is used to connect the second pitch mechanism 501 with the second threaded rod 503. The second threaded rod 503 can make the second measuring instrument 500 move up and down more accurately, thereby making the distance between the probe on the second measuring instrument 500 and the outer ring of the bearing 102 more accurately.

[0038] like Figure 1 , 2As shown: A second slide rail 504 is provided at the lower part of the second threaded rod 503. The second slide rail 504 is fixed to the second support plate 507 by bolts. The second slide rail 504 is used to move the second slider 505. The second slider 505 is provided inside the second slide rail 504. The second slide rail 504 and the second slider 505 are slidably adapted. The second slider 505 is used to drive the second threaded rod 503 to move within the second slide rail 504. The top of the second slider 505 is connected to the bottom of the second threaded rod 503. The second slider 505 is away from the axis. A third threaded screw 506 is provided on one side of the bearing 102. The third threaded screw 506 is connected and fixed to the nut embedded in the second slider 505. The third threaded screw 506 is used to more accurately adjust the distance between the second measuring gauge 500 and the outer ring of the bearing 102, so as to make the concentricity measurement of the outer ring more accurate. A second support plate 507 is provided at the bottom of the second slide rail 504. The second support plate 507 is used to support and fix the second slide rail 504, and also to connect the second slide rail 504 and the components installed on it to the second robotic arm 508.

[0039] Its effects are as follows: the second slide rail 504 is used to move the second slider 505, the second slider 505 is used to drive the second threaded rod 503 to move within the second slide rail 504, the third threaded rod 506 is used to more accurately adjust the distance between the second measuring gauge 500 and the outer ring of the bearing 102, so as to make the concentricity measurement of the outer ring more accurate, and the second support plate 507 is used to support and fix the second slide rail 504, and also to connect the second slide rail 504 and the components mounted on it to the second robotic arm 508.

[0040] like Figure 1 , 2 As shown: A second robotic arm 508 is provided at the bottom of the second support plate 507. The second robotic arm 508 includes a base 302 and a manually adjustable joint component. The second robotic arm 508 is used to adjust the distance between the second measuring gauge 500 and the inner ring of the bearing 102 at a large angle. The bottom of the second robotic arm 508 is connected to the bearing surface of the operating table 100.

[0041] Its effect is that the second robotic arm 508 is used to adjust the distance between the second measuring gauge 500 and the outer ring of the bearing 102 at a large angle, and it is also more convenient to read the second measuring gauge 500.

[0042] like Figure 1 , 4As shown: A baffle 600 is provided at the front of the bearing 102, and a gap is provided between the baffle 600 and the bearing 102. The baffle 600 is used to prevent the bearing 102 from falling off when rotating. An electric push rod 601 is provided at the front of the baffle 600. The telescopic end of the electric push rod 601 is connected to the baffle 600 by bolts. The electric push rod 601 is used to adjust the distance between the baffle 600 and the bearing 102. A support frame 602 is provided at the bottom of the drive end of the electric push rod 601. The support frame 602 is fixed to the drive end of the electric push rod 601 by bolts. The support frame 602 is used to support and fix the drive end of the electric push rod 601. Alternatively, the electric push rod 601 can be removed and the support frame 602 can be directly installed at the bottom of the baffle 600.

[0043] Its effect is as follows: the baffle 600 is used to prevent the bearing 102 from falling off when rotating, and the combination with the pressure roller device 103 makes the rotation of the bearing 102 between the rollers 101 safer.

[0044] Working principle: When measuring bearings 102 of different sizes, the first threaded screw 205 rotates, causing the main slider 204 to drive the motor 201 on the support rod 202 to move, which in turn causes the roller 101 connected to the main rotating shaft 200 to move, thus causing the driven shaft 301 on the driven assembly 300 to rotate accordingly. The positioning rod 304 and the support rod 202 support the roller 101 between the main rotating shaft 200 and the driven shaft 301. The lateral distance between the two rollers 101 is adjusted by the main slider 204 and the driven slider 306. Then, by driving the motors 201 on both sides, the main rotating shaft 200 drives the roller 101 to rotate, which in turn causes the driven shaft 301 to rotate on the base 302, thus causing the two rollers 101 to rotate. The bearing 102 is rotated to measure bearings 102 of different sizes. The distance between the first measuring gauge 400 and the inner ring of the bearing 102 is adjusted by the first robotic arm 408. The first measuring gauge 400 is then adjusted up and down by the first threaded rod 403. The tilt angle of the probe on the first measuring gauge 400 is adjusted by the first pitch mechanism 401, so that the concentricity measurement of the inner ring of the bearing 102 can be more accurate. The distance between the second measuring gauge 500 and the outer ring of the bearing 102 is adjusted by the second robotic arm 508. The second measuring gauge 500 is then adjusted up and down by the second threaded rod 503. The tilt angle of the probe on the second measuring gauge 501 is adjusted by the second pitch mechanism 501, so that the concentricity measurement of the outer ring of the bearing 102 can be more accurate.

[0045] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A bearing concentricity detection device, comprising symmetrical rollers (101) arranged on an operating machine (100), bearings (102) arranged on the upper part of the two rollers (101), and a pressure roller device (103) arranged on the upper part of the bearings (102), characterized in that: The front end of each roller (101) is provided with a main rotating shaft (200), the front end of each main rotating shaft (200) is provided with a motor (201), the bottom of each motor (201) is provided with a supporting rod (202), the bottom of the supporting rod (202) is provided with a main sliding groove (203), the lower surface of each supporting rod (202) is provided with a main sliding block (204), each main sliding block (204) is in sliding fit with the main sliding groove (203), the side, away from the bearing (102), of each main sliding block (204) is provided with a first threaded lead screw (205), the rear side of the roller (101) is provided with a driven assembly (300), the rear side of the inner ring of the bearing (102) is provided with a first measuring table (400), one side of the outer ring of the bearing (102) is provided with a second measuring table (500).

2. A bearing concentricity detection device as claimed in claim 1, characterized in that: The driven assembly (300) comprises a from rotating shaft (301) rotationally connected to the rear end of each roller (101), the rear part of each from rotating shaft (301) is provided with a base (302), the rear end of each base (302) is provided with a positioning block (303), the bottom of each positioning block (303) is provided with a positioning rod (304), the bottom of the positioning rod (304) is provided with a from sliding groove (305), the lower surface of each positioning rod (304) is provided with a from sliding block (306), and the from sliding block (306) is in sliding fit with the from sliding groove (305).

3. A bearing concentricity detection device as claimed in claim 2, characterised in that: The side, away from the bearing (102), of the first measuring table (400) is provided with a first tilting mechanism (401), the side, away from the bearing (102), of the first tilting mechanism (401) is provided with a first connecting block (402), and a first threaded rod (403) penetrates through the middle of the first connecting block (402).

4. A bearing concentricity detection device as claimed in claim 3, wherein: The lower part of the first threaded rod (403) is provided with a first sliding rail (404), the first sliding rail (404) is provided with a first sliding block (405) inside, the top of the first sliding block (405) is connected with the bottom of the first threaded rod (403), the side, away from the bearing (102), of the first sliding block (405) is provided with a second threaded lead screw (406), and the bottom of the first sliding rail (404) is provided with a first supporting plate (407).

5. A bearing concentricity detection device as claimed in claim 4, wherein: The bottom of the first supporting plate (407) is provided with a first mechanical arm (408), and the bottom of the first mechanical arm (408) is connected with the bearing surface of the operation machine table (100).

6. A bearing concentricity detection device as claimed in claim 5, characterised in that: The side, away from the bearing (102), of the second measuring table (500) is provided with a second tilting mechanism (501), the side, away from the bearing (102), of the second tilting mechanism (501) is provided with a second connecting block (502), and a second threaded rod (503) penetrates through the middle of the second connecting block (502).

7. A bearing concentricity detection device as claimed in claim 6, characterised in that: The lower part of the second threaded rod (503) is provided with a second sliding rail (504), the second sliding rail (504) is provided with a second sliding block (505), the top of the second sliding block (505) is connected with the bottom of the second threaded rod (503), the side of the second sliding block (505) away from the bearing (102) is provided with a third threaded rod (506), and the bottom of the second sliding rail (504) is provided with a second supporting plate (507).

8. A bearing concentricity detection device as claimed in claim 7, characterised in that: The bottom of the second supporting plate (507) is provided with a second mechanical arm (508), and the bottom of the second mechanical arm (508) is connected with the bearing surface of the operation machine (100).

9. A bearing concentricity detection device as claimed in claim 8, characterised in that: The front of the bearing (102) is provided with a baffle (600), the front of the baffle (600) is provided with an electric push rod (601), and the driving end of the electric push rod (601) is provided with a supporting frame (602).

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