Bearing vibration measuring machine and bearing assembling device

Abstract

The invention relates to the technical field of bearing assembly, in particular to a bearing vibration measuring machine and a bearing assembly device. The bearing vibration measuring machine provided by the invention comprises a rack, a first driving mechanism, a bearing clamping mechanism, an axial positioning mechanism, a second driving mechanism and a sensor, the first driving mechanism comprises a first air cylinder, a first guide rail and a first sliding block. The telescopic end of the first air cylinder is connected with the first sliding block. The bearing clamping mechanism is arranged on the first sliding block; the axial positioning mechanism comprises a second cylinder, a cylinder body of the second cylinder is connected with the first sliding block, and a telescopic end of the second cylinder corresponds to an outer ring of the bearing to be detected; the second driving mechanism is used for driving the inner shaft of the to-be-tested bearing to rotate; the sensor is arranged corresponding to the outer ring of the to-be-measured bearing. The bearing vibration detector provided by the embodiment of the invention realizes high precision, automation and universality of bearing vibration detection, and is especially suitable for batch production detection and performance evaluation of industrial bearings.

Description

Technical Field

[0001] The present disclosure relates to the technical field of bearing assembly, and in particular to a bearing vibration measuring machine and a bearing assembly device. Background Art

[0002] In bearing manufacturing and application, bearing vibration performance is a core indicator of quality and reliability. Whether in industrial machinery, automotive powertrains, or high-end aerospace equipment, excessive bearing vibration can easily cause equipment noise, increased component wear, and even system failures and downtime, resulting in significant economic losses.

[0003] Traditional bearing vibration testing mostly relies on manual operation and simple testing equipment. Manual clamping of bearings is inefficient and inconsistent, making it difficult to ensure the standardization of test conditions. Under different operators and different clamping conditions, the test data fluctuates greatly and cannot accurately reflect the true vibration characteristics of the bearing. Summary of the Invention

[0004] The present disclosure provides a bearing vibration measuring machine and a bearing assembly device to at least solve the above technical problems existing in the prior art.

[0005] A first aspect of the present disclosure provides a bearing vibration measuring machine, comprising: Frame, including base; A first driving mechanism includes a first cylinder, a first guide rail, and a first slider, wherein the first guide rail extends along a first direction X, the first slider slidably engages with the first guide rail, the first guide rail is disposed on the base, a cylinder body of the first cylinder is connected to the first guide rail, and a telescopic end of the first cylinder is connected to the first slider; A bearing clamping mechanism, provided on the first slider, for clamping the outer ring of the bearing to be tested in the radial direction of the bearing to be tested; an axial positioning mechanism, comprising a second cylinder, wherein the cylinder body of the second cylinder is connected to the first slider, and the telescopic end of the second cylinder corresponds to the outer ring of the bearing to be tested, so that when the telescopic end of the second cylinder is extended, pressure is applied to the outer ring of the bearing to be tested in the axial direction of the bearing to be tested; A second driving mechanism, used for driving the inner shaft of the bearing to be tested to rotate; The sensor is arranged corresponding to the outer ring of the bearing to be tested.

[0006] Furthermore, the second driving mechanism includes a first driving motor, the rotating shaft of the first driving motor is connected to a fixed block, the axis of the fixed block is provided with a mounting hole, and the mounting hole is used for connection with the bearing to be tested.

[0007] Furthermore, the telescopic end of the second cylinder is connected to a sleeve, and the sleeve is used to apply an axial force to the outer ring of the bearing to be tested.

[0008] Furthermore, the axial positioning mechanism includes a second guide rail and a second slider, the second guide rail extends along the first direction X, the second slider slides with the second guide rail, the second guide rail is arranged on the first slider, the telescopic end of the second cylinder is connected to the second slider, and the second slider is connected to the sleeve.

[0009] Furthermore, the bearing clamping mechanism includes a third cylinder and a fourth cylinder, the cylinder body of the third cylinder is arranged on the first slider, the telescopic end of the third cylinder is connected to the first clamping plate, the cylinder body of the fourth cylinder is arranged on the first slider, and the telescopic end of the fourth cylinder is connected to the second clamping plate; The third cylinder and the fourth cylinder drive the first clamping plate and the second clamping plate respectively, so that the first clamping plate and the second clamping plate move toward or away from each other.

[0010] Furthermore, the first clamping plate includes a first curved surface facing the second clamping plate, and the second clamping plate includes a second curved surface facing the first clamping plate, and a detection station is formed between the first clamping plate and the second clamping plate.

[0011] Furthermore, it further includes a transport mechanism, the transport mechanism including a third drive mechanism, the third drive mechanism is provided on the frame, the drive end of the third drive mechanism is connected to the movable plate, and is used to drive the movable plate to move along the second direction Y; The movable plate is provided with a plurality of longitudinal movable mechanisms, which are spaced apart along the second direction Y, and the movable ends of the longitudinal movable mechanisms are provided with clamping claw assemblies.

[0012] Furthermore, the longitudinal movement mechanism includes a fifth cylinder and a sixth cylinder, the cylinder body of the fifth cylinder is connected to the movable plate, and the piston rod of the fifth cylinder is connected to the sixth cylinder; The sixth air cylinder is used to drive the jaw assembly to open or close so as to grasp the bearing to be tested.

[0013] Furthermore, the third drive mechanism includes a second drive motor, a screw, a nut and a slide rail, the output end of the second drive motor is connected to the screw, the nut is threadedly engaged with the screw, the slide rail extends along the axial direction of the screw, the nut is slidingly engaged with the slide rail, and the movable plate is fixedly connected to the nut.

[0014] A second aspect of the present disclosure provides a bearing assembly device, comprising the bearing vibration measuring machine described in the first aspect.

[0015] The technical solution provided by the embodiments of the present disclosure has the following advantages over the prior art: The bearing vibration tester provided in the disclosed embodiments includes a frame, a first drive mechanism, a bearing clamping mechanism, an axial positioning mechanism, a second drive mechanism, and a sensor frame including a base. The first drive mechanism includes a first cylinder, a first guide rail, and a first slider. The first guide rail extends along a first direction X, which can be the width of the bearing vibration tester. The first slider slides in engagement with the first guide rail, which is disposed on the base. The cylinder body of the first cylinder is connected to the first guide rail, and the telescopic end of the first cylinder is connected to the first slider. The first cylinder can push the first slider toward the second drive mechanism to move the bearing under test to a position located on the sensor side and drivable by the second drive mechanism. The bearing clamping mechanism is disposed on the first slider and is used to clamp the outer ring of the bearing under test in the radial direction. After the bearing clamping mechanism clamps the bearing under test, the first cylinder pushes the first slider in the X direction to align the bearing with the second drive mechanism. The bearing clamping mechanism radially clamps the outer ring of the bearing to ensure that the outer ring is fixed. The axial positioning mechanism includes a second cylinder, the cylinder body of which is connected to the first slider. The telescopic end of the second cylinder corresponds to the outer ring of the bearing under test, so that when the telescopic end of the second cylinder is extended, it applies pressure to the outer ring of the bearing under test in the axial direction. When the telescopic end of the second cylinder is extended, it applies pressure along the axial direction of the bearing under test, fixing the outer ring in the axial direction and preventing movement during testing. A second drive mechanism is used to rotate the inner shaft of the bearing under test. A sensor is provided corresponding to the outer ring of the bearing under test. The second drive mechanism rotates the inner ring of the bearing at a set speed to simulate the actual operating conditions of the bearing. The sensor contacts the surface of the bearing outer ring and picks up the vibration signal generated by the inner ring rotation. After signal processing, the vibration characteristics of the bearing are evaluated through methods such as spectrum analysis and time domain analysis to determine whether the bearing has defects. The bearing vibration measuring machine provided by the disclosed embodiments achieves high-precision, automated, and versatile bearing vibration detection, and is particularly suitable for mass production testing and performance evaluation of industrial-grade bearings.

[0016] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings, in which several embodiments of the present disclosure are shown by way of example and not limitation, wherein: In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

[0018] Figure 1 The structure diagram of the bearing vibration measuring machine provided by the embodiment of the present disclosure is shown. Figure 1 ; Figure 2 The structure diagram of the bearing vibration measuring machine provided by the embodiment of the present disclosure is shown. Figure 2 ; Figure 3 The structure diagram of the bearing vibration measuring machine provided by the embodiment of the present disclosure is shown. Figure 3 .

[0019] Explanation of the numbers in the figure: 1. Frame; 11. Base; 21. First cylinder; 22. First guide rail; 23. First slider; 31. First drive motor; 32. Rotating shaft; 33. Fixed block; 331. Mounting hole; 41. Second cylinder; 42. Second guide rail; 43. Second slider; 44. Sleeve; 51. Third cylinder; 511. First clamping plate; 52. Fourth cylinder; 521. Second clamping plate; 62. Screw; 63. Nut; 64. Slide rail; 65. Moving plate; 71. Fifth cylinder; 72. Sixth cylinder; 73. Clamping jaw assembly; 8. Bearing to be tested; 9. Sensor. DETAILED DESCRIPTION

[0020] To make the purposes, features, and advantages of the present disclosure more apparent and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative work shall fall within the scope of protection of the present disclosure.

[0021] Combine Figure 1 、 Figure 2 and Figure 3 As shown, the bearing vibration tester provided by the embodiment of the present disclosure includes a frame 1, a first driving mechanism, a bearing clamping mechanism, an axial positioning mechanism, a second driving mechanism and a sensor 9. The frame 1 includes a base 11; the first driving mechanism includes a first cylinder 21, a first guide rail 22 and a first slider 23. The first guide rail 22 extends along a first direction X, and the first direction X can be the width direction of the bearing vibration tester. The first slider 23 slides with the first guide rail 22. The first guide rail 22 is arranged on the base 11. The cylinder body of the first cylinder 21 is connected to the first guide rail 22. The telescopic end of the first cylinder 21 is connected to the first slider 23. The first cylinder 21 can push the first slider 23 to move toward the direction close to the second driving mechanism, so that the bearing 8 to be tested can be moved to a position located on the side of the sensor 9 and can be driven by the second driving mechanism.

[0022] The bearing clamping mechanism, mounted on the first slider 23, clamps the outer ring of the bearing 8 in the radial direction. After the bearing clamping mechanism secures the bearing 8, the first cylinder 21 pushes the first slider 23 in the X direction, aligning the bearing with the second drive mechanism. The bearing clamping mechanism (e.g., a pneumatic jaw) radially grips the outer ring of the bearing, securing it securely.

[0023] The axial positioning mechanism includes a second cylinder 41, the cylinder body of the second cylinder 41 is connected to the first slider 23, and the telescopic end of the second cylinder 41 corresponds to the outer ring of the bearing to be tested 8, so that when the telescopic end of the second cylinder 41 is extended, pressure is applied to the outer ring of the bearing to be tested in the axial direction of the bearing 8; the telescopic end of the second cylinder 41 is extended, and pressure is applied along the axial direction of the bearing to be tested 8, so that the outer ring of the bearing is fixed in the axial direction to prevent movement during the test.

[0024] The second drive mechanism is used to rotate the inner shaft of the bearing 8 to be tested. Sensor 9 is positioned in correspondence with the outer ring of the bearing 8 to be tested. The second drive mechanism (e.g., a motor and transmission system) drives the inner ring of the bearing to rotate at a set speed, simulating the actual operating state of the bearing.

[0025] Sensor 9 contacts the outer ring surface of the bearing and picks up the vibration signal generated by the inner ring's rotation. After processing the signal, the vibration characteristics of the bearing are evaluated through methods such as spectrum analysis and time domain analysis to determine whether the bearing has defects.

[0026] After the test is completed, the second cylinder 41 retracts, the first cylinder 21 retracts, the bearing clamping mechanism is released, and the next bearing 8 to be tested can be replaced.

[0027] The bearing vibration measuring machine provided by the embodiments of the present disclosure achieves high precision, automation and versatility in bearing vibration detection, and is particularly suitable for batch production detection and performance evaluation of industrial-grade bearings.

[0028] In some specific embodiments, the second drive mechanism includes a first drive motor 31. The rotating shaft 32 of the first drive motor 31 is connected to a fixed block 33. The axis of the fixed block 33 is provided with a mounting hole 331, which is used to connect to the bearing to be tested. The mounting hole 331 can be inserted into the inner shaft of the bearing (or adapted to the connecting shaft). By matching the shape and size of the mounting hole 331 with the inner shaft of the bearing (e.g., a circular hole matches a cylindrical shaft, or a spline hole matches a spline shaft), the coaxiality between the inner shaft of the bearing and the rotating shaft 32 of the drive motor is ensured, reducing additional vibration interference caused by eccentricity and ensuring more stable rotation of the inner shaft.

[0029] The position of the fixed block 33 of the second drive mechanism cooperates with the X-direction movement of the first drive mechanism and the axial pressure of the axial positioning mechanism (second cylinder 41): after the first cylinder 21 pushes the bearing into place, the mounting hole 331 of the fixed block 33 needs to be precisely aligned with the inner shaft of the bearing. The axial pressure of the second cylinder 41 and the radial clamping of the bearing clamping mechanism can reduce the micro-displacement of the bearing during the test and ensure the detection accuracy.

[0030] The mounting hole 331 of the fixing block 33 can be designed as a "standardized interface" (such as compatible with the adaptable dimensions of the inner shafts of bearings of multiple specifications). Combined with the X-axis movement of the first drive mechanism and the radial clamping of the bearing clamping mechanism, different types of bearings can be quickly switched: only the adaptable fixing block 33 / adjustment of the mounting hole 331 adapter is required to complete the production line change.

[0031] In some specific embodiments, a sleeve 44 is connected to the telescopic end of the second cylinder 41. Sleeve 44 is used to apply an axial force to the outer ring of the bearing under test. The annular end surface of sleeve 44 makes full contact with the end face of the bearing outer ring (rather than point or line contact), evenly distributing the thrust of the second cylinder 41 across the outer ring end face. This uniform axial force eliminates the risk of tilting or warping of the bearing outer ring during testing, reduces additional vibration caused by mounting stress, and ensures that the signal picked up by sensor 9 reflects only internal bearing defects.

[0032] In some specific embodiments, the axial positioning mechanism includes a second guide rail 42 and a second slider 43. The second guide rail 42 extends in the first direction X, and the second slider 43 slides in engagement with the second guide rail 42, improving the precision, stability, and system rigidity of axial pressure application. The second guide rail 42 is mounted on the first slider 23. The telescopic end of the second cylinder 41 is connected to the second slider 43, which is in turn connected to the sleeve 44. The high-precision machining of the second guide rail 42 in the X direction and the coordination with the second slider 43 ensure that the sleeve 44 moves along a strictly linear trajectory during axial movement, ensuring that the end face of the sleeve 44 is completely parallel to the bearing outer ring. This avoids the "deflection" problem that can occur with direct cylinder drive, ensuring that the axial force is evenly applied to the entire end face of the bearing outer ring.

[0033] In some specific embodiments, the bearing clamping mechanism includes a third cylinder 51 and a fourth cylinder 52, wherein the cylinder body of the third cylinder 51 is disposed on the first slider 23, and the telescopic end of the third cylinder 51 is connected to the first clamping plate 511; the cylinder body of the fourth cylinder 52 is disposed on the first slider 23, and the telescopic end of the fourth cylinder 52 is connected to the second clamping plate 521; the third cylinder 51 and the fourth cylinder 52 respectively drive the first clamping plate 511 and the second clamping plate 521 to move the first clamping plate 511 and the second clamping plate 521 toward or away from each other. The first clamping plate 511 and the second clamping plate 521 can be driven separately by upper cylinders or by a single cylinder. The third cylinder 51 and the fourth cylinder 52 respectively control the first clamping plate 511 and the second clamping plate 521, thereby achieving independent movement of the clamping plates and differentiated clamping force, thereby improving the flexibility, stability, and applicability of the bearing clamping.

[0034] In some specific embodiments, the first clamping plate 511 includes a first curved surface facing the second clamping plate 521, and the second clamping plate 521 includes a second curved surface facing the first clamping plate 511. A detection station is formed between the first clamping plate 511 and the second clamping plate 521. The curvature radii of the first and second curved surfaces match the outer circumference of the bearing outer ring, creating a line contact or surface contact clamping state, thereby improving bearing positioning accuracy and detection reliability.

[0035] In some specific embodiments, a transport mechanism is further included, which includes a third driving mechanism. The third driving mechanism is arranged on the frame 1, and the driving end of the third driving mechanism is connected to the movable plate 65, for driving the movable plate 65 to move along the second direction Y. The second direction Y can be the length direction of the bearing vibration tester; a plurality of longitudinal moving mechanisms are provided on the movable plate 65, and the plurality of longitudinal moving mechanisms are arranged at intervals along the second direction Y, and a clamping claw assembly 73 is provided at the moving end of the longitudinal moving mechanism.

[0036] A third drive mechanism (e.g., a servo motor + synchronous belt / screw) drives the movable plate 65 to rapidly move in the Y direction, allowing the multiple gripper assemblies 73 to sequentially access different functional areas (e.g., loading, inspection, unloading, and defective product areas). For example, within the second Y-axis travel, four inspection stations can be arranged, enabling a streamlined "loading → inspection 1 → inspection 2 → unloading" process, improving inspection efficiency.

[0037] Multiple longitudinal motion mechanisms (such as pneumatic or electric cylinders) are spaced apart along the Y-direction, enabling simultaneous execution of different operations. For example, while the front gripper assembly is retrieving a tested bearing, the rear gripper assembly 73 can simultaneously grasp a new bearing 8 to be tested. After the third drive mechanism drives the movable plate 65 in the Y-direction, the front gripper assembly simultaneously places the tested bearing in the unloading station, while the rear gripper assembly 73 can simultaneously place a new bearing 8 to be tested in the testing station.

[0038] The transport mechanism is synchronously controlled by PLC or industrial computer with the bearing clamping mechanism, axial positioning mechanism, etc.

[0039] In some specific embodiments, the longitudinal movement mechanism includes a fifth cylinder 71 and a sixth cylinder 72. The cylinder body of the fifth cylinder 71 is connected to the movable plate 65, and the piston rod of the fifth cylinder 71 is connected to the sixth cylinder 72. The sixth cylinder 72 is used to drive the opening or closing of the clamping jaw assembly 73 to grasp the bearing to be tested. The Z-direction (vertical direction) lifting and lowering of the clamping jaw assembly 73 is achieved by the extension and retraction of the cylinder. For example, when it is necessary to grasp the bearing, the fifth cylinder 71 extends, driving the clamping jaw to descend above the bearing; after the grasping is completed, the fifth cylinder 71 retracts, and the clamping jaw rises to a safe height. The sixth cylinder 72 directly drives the opening or closing of the clamping jaw assembly 73 to grasp the bearing. For example, when the cylinder is inhaled, the clamping jaw closes to clamp the bearing, and when the cylinder is exhausted, the clamping jaw opens to release the bearing.

[0040] The clamping jaw assembly 73 may be composed of two clamping arms driven by the sixth cylinder 72 . The inner side of the clamping arm is usually designed as a V-shaped groove or an arc surface to match the outer circle of the bearing outer ring.

[0041] In some specific embodiments, the third drive mechanism includes a second drive motor, a screw 62, a nut 63, and a slide rail 64. The output end of the second drive motor is connected to the screw 62, the nut 63 is threadedly engaged with the screw 62, the slide rail 64 extends axially along the screw 62, the nut 63 slides in engagement with the slide rail 64, and the movable plate 65 is fixedly connected to the nut 63. The third drive mechanism adopts a "second drive motor + screw 62 + nut 63 + slide rail 64" transmission scheme. Through the combination of precision mechanical transmission and rigid guide, it achieves high-precision and high-stability movement of the movable plate 65 in the Y direction, thereby achieving high-precision movement and reliable load of the transport mechanism in the Y direction.

[0042] The bearing assembly device provided in the embodiment of the present disclosure includes the bearing vibration measuring machine provided in the embodiment of the present disclosure. Since the bearing assembly device provided in the embodiment of the present disclosure and the bearing vibration measuring machine provided in the embodiment of the present disclosure have the same advantages, they will not be described in detail here.

[0043] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present disclosure can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in this embodiment can be achieved. This is not limited herein.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the present disclosure, "plurality" means two or more, unless otherwise specifically defined.

[0045] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A bearing vibration measuring machine, characterized in that: include: A frame (1) including a base (11); A first driving mechanism comprises a first cylinder (21), a first guide rail (22) and a first slider (23), wherein the first guide rail (22) extends in a first direction, the first slider (23) is slidably matched with the first guide rail (22), the first guide rail (22) is arranged on the base (11), the cylinder body of the first cylinder (21) is connected to the first guide rail (22), and the telescopic end of the first cylinder (21) is connected to the first slider (23); A bearing clamping mechanism, provided on the first slider (23), for clamping the outer ring of the bearing to be tested (8) in the radial direction of the bearing to be tested (8); An axial positioning mechanism comprises a second cylinder (41), a cylinder body of the second cylinder (41) being connected to the first slider (23), and a telescopic end of the second cylinder (41) corresponding to the outer ring of the bearing to be tested (8), so that when the telescopic end of the second cylinder (41) is extended, pressure is applied to the outer ring of the bearing to be tested (8) in the axial direction of the bearing to be tested (8); a second driving mechanism, for driving the inner shaft of the bearing to be tested (8) to rotate; The sensor (9) is arranged corresponding to the outer ring of the bearing (8) to be tested.

2. The bearing vibration measuring machine according to claim 1, characterized in that: The second driving mechanism comprises a first driving motor (31), a rotating shaft (32) of the first driving motor (31) is connected to a fixing block (33), an axis of the fixing block (33) is provided with a mounting hole (331), and the mounting hole (331) is used for connection with the bearing to be tested.

3. The bearing vibration measuring machine according to claim 1, characterized in that: The telescopic end of the second cylinder (41) is connected to a sleeve (44), and the sleeve (44) is used to apply an axial force to the outer ring of the bearing to be tested.

4. The bearing vibration measuring machine according to claim 3, characterized in that: The axial positioning mechanism includes a second guide rail (42) and a second slider (43), wherein the second guide rail (42) extends along a first direction, the second slider (43) is slidably matched with the second guide rail (42), the second guide rail (42) is arranged on the first slider (23), the telescopic end of the second cylinder (41) is connected to the second slider (43), and the second slider (43) is connected to the sleeve (44).

5. The bearing vibration measuring machine according to claim 1, characterized in that: The bearing clamping mechanism comprises a third cylinder (51) and a fourth cylinder, wherein the cylinder body of the third cylinder (51) is arranged on the first slider (23), and the telescopic end of the third cylinder (51) is connected to a first clamping plate (511); the cylinder body of the fourth cylinder is arranged on the first slider (23), and the telescopic end of the fourth cylinder is connected to a second clamping plate (521); The third air cylinder (51) and the fourth air cylinder drive the first clamping plate (511) and the second clamping plate (521) respectively, so that the first clamping plate (511) and the second clamping plate (521) move toward or away from each other.

6. The bearing vibration measuring machine according to claim 5, characterized in that: The first clamping plate (511) includes a first curved surface facing the second clamping plate (521), and the second clamping plate (521) includes a second curved surface facing the first clamping plate (511), and a detection station is formed between the first clamping plate (511) and the second clamping plate (521).

7. The bearing vibration measuring machine according to claim 1, characterized in that: The machine also includes a transport mechanism, wherein the transport mechanism includes a third drive mechanism, the third drive mechanism is arranged on the frame (1), and the drive end of the third drive mechanism is connected to the movable plate (65) for driving the movable plate (65) to move along the second direction; The movable plate (65) is provided with a plurality of longitudinal movable mechanisms, the plurality of longitudinal movable mechanisms being arranged at intervals along the second direction, and a clamping claw assembly (73) being provided at a movable end of the longitudinal movable mechanism.

8. The bearing vibration measuring machine according to claim 7, characterized in that: The longitudinal movement mechanism comprises a fifth cylinder (71) and a sixth cylinder (72), the cylinder body of the fifth cylinder (71) is connected to the moving plate (65), and the piston rod of the fifth cylinder (71) is connected to the sixth cylinder (72); The sixth air cylinder (72) is used to drive the opening or closing of the clamping jaw assembly (73) to grasp the bearing to be tested.

9. The bearing vibration measuring machine according to claim 7, characterized in that: The third driving mechanism includes a second driving motor, a screw (62), a nut (63) and a slide rail (64), wherein the output end of the second driving motor is connected to the screw (62), the nut (63) is threadedly engaged with the screw (62), the slide rail (64) extends along the axial direction of the screw (62), the nut (63) is slidably engaged with the slide rail (64), and the movable plate (65) is fixedly connected to the nut (63).

10. A bearing assembly device, characterized in that: A bearing vibration measuring machine comprising the bearing vibration measuring machine according to any one of claims 1 to 9.

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