Bearing service life testing machine tool

Abstract

The invention relates to the technical field of bearing detection test equipment, and discloses a bearing life testing machine tool, which comprises a multi-station automatic feeding mechanism rotationally arranged on a testing machine body, and the multi-station automatic feeding mechanism comprises a rotating assembly rotationally arranged on the testing machine body, the rotating assembly is provided with a plurality of automatic positioning and clamping assemblies for positioning and clamping a bearing, the testing machine body is provided with a touch mechanism for driving the automatic positioning and clamping assemblies to clamp and loosen the bearing, and the testing machine body is also provided with a material shifting mechanism for shifting the bearing away. The device has the beneficial effects that feeding is continuously and automatically carried out, a plurality of stations can simultaneously and continuously carry out tests on a plurality of bearings, automatic discharging can be carried out after the tests are finished, manual participation is not needed, and the test detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing detection equipment, and specifically, to a multi-station bearing life test machine tooling with automatic feeding. Background Art

[0002] As a key component in mechanical equipment, the life and reliability of bearings directly affect the operating performance of the equipment. At present, bearing life tests are mainly carried out by simulating actual working conditions, but the existing test toolings have the following problems: single bearing feeding needs to be done manually, the test efficiency of a single station is low, sample replacement requires manual operation, and continuous testing cannot be achieved.

[0003] Therefore, there is an urgent need for a bearing life test tooling that can solve the above problems. Summary of the Invention

[0004] This application proposes a bearing life test machine tooling that can continuously and automatically feed, and multiple stations can simultaneously and continuously test multiple bearings. After the test is completed, it can automatically discharge the materials without manual participation, improving the test and detection efficiency.

[0005] For this purpose, the technical solution adopted in this application is as follows: The bearing life test machine tooling includes a multi-station automatic feeding mechanism rotatably arranged on the test machine body. The multi-station automatic feeding mechanism includes a rotating component rotatably arranged on the test machine body. A plurality of automatic positioning and clamping components for positioning and clamping bearings are arranged on the rotating component. A triggering mechanism for driving the automatic positioning and clamping components to clamp and release the bearings is arranged on the test machine body. A material discharging mechanism for separating the bearings is also arranged on the test machine body.

[0006] By adopting the above technical solution: The multi-station automatic feeding mechanism can simultaneously clamp, position, and feed multiple bearings. Through the automatic control of the triggering mechanism, a single automatic positioning and clamping component can first position and clamp the bearing, and then maintain the clamping state until it reaches the detection and loading mechanism for the loading test. When the test is completed, the triggering mechanism loses the abutting effect on the automatic positioning and clamping component and automatically resets. After losing the clamping effect on the bearing, the bearing is separated by the material discharging mechanism, completing the test procedure of the bearing. The whole process does not require manual single loading and unloading. Multiple stations can simultaneously test multiple bearings, improving the test efficiency.

[0007] Optionally, the test machine body includes an equipment frame body, and multiple groups of detection and loading mechanisms are arranged on the upper part of the equipment frame body.

[0008] By adopting the above technical solution: Multiple groups of detection and loading mechanisms can correspond to the automatic positioning and clamping components for clamping bearings, and perform the loading test on the bearings.

[0009] Optionally, the rotating assembly includes a rotating power member fixed to the lower part of the equipment frame. The rotating power member is connected with an installation assembly through a driving assembly, and the automatic positioning and clamping assembly is installed on the installation assembly.

[0010] By adopting the above technical solution: The rotating power member provides the power for the installation assembly to rotate, and can drive the automatic positioning and clamping assembly thereon to rotate to the detection and loading mechanism for a loading test.

[0011] Optionally, the driving assembly includes a transmission sleeve connected to the rotating power member. One end of a bridge rod is connected to the circumferential side of the transmission sleeve, and the other end of the bridge rod is connected to the installation assembly. The installation assembly includes an annular plate connected to the bridge rod, and a plurality of the automatic positioning and clamping assemblies are installed on the annular plate.

[0012] By adopting the above technical solution: The rotating power member can drive the transmission sleeve to rotate through its output shaft. By setting the bridge rod, the triggering mechanism can be displaced to avoid hindering the rotation of the annular plate.

[0013] Optionally, the automatic positioning and clamping assembly includes a mounting seat fixed on the annular plate. A first clamping member and a second clamping member are rotatably connected to the mounting seat through a torsion member. A triggering centering rod is slidably connected to the mounting seat through a limiting member. The triggering centering rod is located in the middle of the first clamping member and the second clamping member. Clamping wheels are provided at the outer ends of the first clamping member and the second clamping member and at the top of the triggering centering rod. Triggering wheels are provided at the inner ends of the first clamping member and the second clamping member. A slope pushing block is provided on the triggering centering rod. The triggering wheels abut against the slope pushing block. The inner end of the triggering centering rod is in contact connection with the triggering mechanism, and a bearing plate is provided at the outer end of the mounting seat.

[0014] By adopting the above technical solution: The torsion member has elastic torsion. The ends of the first clamping member, the second clamping member and the triggering centering rod can perform circumferential clamping on the bearing, and can automatically perform positioning and clamping. The bearing plate is used to support the bottom of the bearing.

[0015] Optionally, the triggering mechanism includes a plurality of triggering arc blocks arranged on the equipment frame. The triggering arc block includes a first inclined surface portion for pushing the triggering centering rod to move outwards, a holding portion for maintaining the position of the triggering centering rod, and a second inclined surface portion for prompting the triggering centering rod to return to its position.

[0016] By adopting the above technical solution: during the test, the ring plate can rotate intermittently driven by the rotation power member, the transmission sleeve and the bridge rod. During the rotation process, the bearing enters between the first clamping member, the second clamping member and the touch centering rod. When the other end of the touch centering rod contacts the first inclined surface portion, under the pushing action of the first inclined surface portion, the touch centering rod moves outward relative to the ring plate, thereby pushing the bottom portions of the first clamping member and the second clamping member away from each other through the inclined surface pushing block. Under the limiting action of the torsion member, the outer ends of the first clamping member and the second clamping member move relatively close to each other and jointly position and clamp the bearing with the end portion of the moving touch centering rod. Then the ring plate continues to move to the lower side of the detection and loading mechanism to perform a loading test on the clamped bearing. When the test is completed, the replacement plate continues to move so that the touch centering rod contacts the second inclined surface portion and gradually returns under the action of the torsion, releasing the clamping of the bearing. The continuously rotating ring plate can push the bearing away through the material feeding mechanism. At the same time, the moving ring plate can also automatically position and clamp the next bearing through the above process for feeding, forming a multi-station cyclic loading and unloading method, eliminating the process of manual single feeding, and enabling continuous testing without interruption, thereby improving the test efficiency.

[0017] Optionally, the height of the touch arc block is lower than the lower side surface of the bridge rod.

[0018] By adopting the above technical solution: with such a setting, the touch arc surface block avoids the bridge rod, facilitating driving the ring plate to rotate under the drive of the transmission sleeve.

[0019] Optionally, the material feeding mechanism includes a mounting ring arranged on the equipment frame body, and a plurality of material feeding rods are arranged on the mounting ring. The material feeding rods are located between the bearing plate and the first clamping member and the second clamping member in terms of height.

[0020] By adopting the above technical solution: the material feeding rods can be set to be inclined towards the bearing plate. When the ring plate rotates, the material feeding rods pass through between the bearing plate and the first clamping member and the second clamping member to push the bearing away.

[0021] Optionally, the detection and loading mechanism includes a loading power member arranged on the equipment frame body. An installation frame is arranged at the lower end of the loading power member, and a plurality of loading rotating members are arranged on the installation frame. A loading block is arranged at the lower end of the output shaft of the loading rotating member.

[0022] By adopting the above technical solution: when the bearing moves into place, the loading power member drives the installation frame to move downward, driving the loading block to press the bearing. At the same time, the loading rotating members rotate, which can drive the loading block to rotate to perform a loading test on the bearing.

[0023] Optionally, a plurality of sorting and feeding mechanisms are further arranged on the periphery of the testing machine body; The sorting and loading mechanism includes a sorting and loading chute and a sluice gate arranged at the mouth of the sorting and loading chute, and the sluice gate is connected to a lifting power component; It further includes a control system for controlling the multi-station automatic loading mechanism, the detection and loading mechanism, and the sorting and loading mechanism.

[0024] By adopting the above technical solutions: The sorting and loading mechanism can sort the bearings. By intermittently pushing the gate, single discharging onto the bearing plate can be achieved and it is located between the first clamping member and the second clamping member, ready for clamping and positioning. The control system can control the synchronous operation of the above mechanisms to realize the processes of automatic loading of bearings, loading tests, etc.

[0025] The working principle and beneficial effects of this application are as follows: 1. The multi-station automatic loading mechanism in this application can simultaneously clamp, position, and load multiple bearings. Through the automatic control of the triggering mechanism, a single automatic positioning and clamping component can first position and clamp the bearing, and then maintain the clamping state until it reaches the detection and loading mechanism for a loading test. When the test is completed, the triggering mechanism loses the abutting effect on the automatic positioning and clamping component and automatically resets. After losing the clamping effect on the bearing, the bearing is deflected by the dialing mechanism to complete the test procedure of the bearing. The entire process does not require manual single loading and unloading. Multiple stations can simultaneously conduct tests on multiple bearings, improving the test efficiency.

[0026] 2. When conducting tests in this application, the ring plate can rotate intermittently driven by the rotation power component, the transmission sleeve, and the bridge rod. During the rotation process, the bearing enters between the first clamping member, the second clamping member, and the triggering centering rod. When the other end of the triggering centering rod contacts the first inclined surface part, under the pushing action of the first inclined surface part, the triggering centering rod moves outward from the ring plate, thereby pushing the bottoms of the first clamping member and the second clamping member to move relatively away from each other. Under the limiting action of the torsion member, the outer ends of the first clamping member and the second clamping member move relatively closer, and jointly position and clamp the bearing with the end of the moving triggering centering rod. Then the ring plate continues to move to the lower side of the detection and loading mechanism to conduct a loading test on the clamped bearing. When the test is completed, the ring plate continues to move so that the triggering centering rod contacts the second inclined surface part and gradually returns to its original position under the action of the torsion, releasing the clamping of the bearing. The continuously rotating ring plate can deflect the bearing out through the dialing mechanism. At the same time, the moving ring plate can also conduct automatic positioning and clamping loading of the next bearing through the above process, forming a multi-station cyclic loading and unloading method, eliminating the process of manual single loading, and enabling continuous testing without interruption, improving the test efficiency.

[0027] 3. The sorting and feeding mechanism in this application can sort bearings. By intermittently pushing the gate, single feeding onto the bearing plate can be achieved, and the bearing is positioned between the first clamping member and the second clamping member, ready for clamping and positioning. The control system can control the synchronous operation of the above mechanisms to realize the automatic feeding, loading test, etc. processes of the bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following further describes this application in detail with reference to the drawings and specific embodiments.

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 It is a top view structure schematic diagram of the multi-station automatic feeding mechanism of an embodiment of this application; Figure 3 It is a schematic diagram of the structure of a single automatic positioning and clamping assembly of an embodiment of this application; Figure 4 It is a schematic diagram of the cooperation structure between the multi-station automatic feeding mechanism and the sorting and feeding mechanism of an embodiment of this application.

[0030] In the figures: 100, test machine body; 110, equipment frame; 200, multi-station automatic feeding mechanism; 210, rotational power member; 220, transmission sleeve; 230, bridge rod; 240, ring plate; 241, mounting seat; 242, torsion member; 243, first clamping member; 244, second clamping member; 245, limiting member; 246, touch centering rod; 247, clamping wheel; 248, touch wheel; 249, inclined plane pushing block; 250, bearing plate; 300, touch mechanism; 310, touch arc block; 320, first inclined surface portion; 330, second inclined surface portion; 400, material pushing mechanism; 410, mounting ring; 420, material pushing rod; 500, detection and loading mechanism; 510, loading power member; 520, mounting frame; 530, loading rotating member; 540, loading block; 600, sorting and feeding mechanism; 610, sorting and feeding groove; 620, gate plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the scope of the present invention.

[0032] As Figures 1-4As shown in the figure, this embodiment proposes a tooling for a bearing life testing machine, which includes a multi-station automatic feeding mechanism 200 rotatably arranged on the testing machine body 100. The multi-station automatic feeding mechanism 200 includes a rotating component rotatably arranged on the testing machine body 100. A plurality of automatic positioning and clamping components for positioning and clamping bearings are arranged on the rotating component. A trigger mechanism 300 for driving the automatic positioning and clamping components to clamp and release the bearings is arranged on the testing machine body 100. A material discharging mechanism 400 for separating the bearings is also arranged on the testing machine body 100.

[0033] The basic principle of this embodiment: The multi-station automatic feeding mechanism 200 can simultaneously clamp and position multiple bearings for feeding. Through the automatic control of the trigger mechanism 300, a single automatic positioning and clamping component can first position and clamp the bearing, and then maintain the clamping state until it reaches the detection and loading mechanism 500 for a loading test. When the test is completed, the trigger mechanism 300 loses the abutting effect on the automatic positioning and clamping component and automatically resets. After losing the clamping effect on the bearing, the bearing is separated by the material discharging mechanism 400, completing the test procedure of the bearing. The whole process does not require manual single loading and unloading. Multiple stations can simultaneously conduct tests on multiple bearings, improving the test efficiency.

[0034] Referring to Figure 1 , the testing machine body 100 therein includes an equipment frame 110. A plurality of groups of detection and loading mechanisms 500 are arranged on the upper part of the equipment frame 110. The plurality of groups of detection and loading mechanisms 500 can correspond to a single automatic positioning and clamping component for clamping the bearing to conduct a loading test on the bearing.

[0035] The rotating component therein includes a rotating power component 210 fixed to the lower part of the equipment frame 110. The rotating power component 210 can adopt a servo motor or the like, which is electrically connected to the control system and can achieve intermittent rotation under the control of the control system. The rotating power component 210 is connected to an installation component through a driving component. The automatic positioning and clamping component is installed on the installation component. The rotating power component 210 provides the power for the installation component to rotate, and can drive the automatic positioning and clamping component thereon to rotate to reach the detection and loading mechanism 500 for a loading test.

[0036] Referring to Figure 1 and Figure 2, specifically, the driving assembly includes a transmission sleeve 220 connected to the rotational power member 210. One end of a bridge rod 230 is connected to the circumferential side of the transmission sleeve 220, and the other end of the bridge rod 230 is connected to an installation assembly. The installation assembly includes an annular plate 240 connected to the bridge rod 230, and a plurality of the automatic positioning and clamping assemblies are installed on the annular plate 240. The rotational power member 210 can drive the transmission sleeve 220 to rotate through its output shaft. By providing the bridge rod 230, the actuating mechanism 300 can be given way to avoid obstructing the rotation of the annular plate 240.

[0037] Refer to Figure 2 and Figure 3 , more specifically, the automatic positioning and clamping assembly in this embodiment includes a mounting seat 241 fixed on the annular plate 240. A first clamping member 243 and a second clamping member 244 are rotatably connected to the mounting seat 241 through a torsion member 242. A touch centering rod 246 is slidably connected to the inside of the mounting seat 241 through a limiting member 245. The touch centering rod 246 is located in the middle of the first clamping member 243 and the second clamping member 244. Clamping wheels 247 are provided at the outer ends of the first clamping member 243 and the second clamping member 244 and at the top of the touch centering rod 246. Touch wheels 248 are provided at the inner ends of the first clamping member 243 and the second clamping member 244. An inclined surface pushing block 249 is provided on the touch centering rod 246, and the touch wheel 248 abuts against the inclined surface pushing block 249. The inner end of the touch centering rod 246 is in contact connection with the actuating mechanism 300. A bearing plate 250 is provided at the outer end of the mounting seat 241, and the limiting member 245 enables the touch centering rod 246 to only move axially.

[0038] The torsion member 242 therein has elastic torsion. The ends of the first clamping member 243, the second clamping member 244, and the touch centering rod 246 can perform circumferential clamping on the bearing, and can automatically perform positioning and clamping. The bearing plate 250 is used to support the bottom of the bearing.

[0039] The actuating mechanism 300 in this embodiment includes a plurality of actuating arc blocks 310 provided on the equipment frame 110. The actuating arc block 310 includes a first inclined surface portion 320 for pushing the touch centering rod 246 to move outward, a holding portion for maintaining the position of the touch centering rod 246, and a second inclined surface portion 330 for urging the touch centering rod 246 to return.

[0040] During the test, the ring plate 240 can rotate intermittently under the drive of the rotation power member 210, the transmission sleeve 220, and the bridge rod 230. During the rotation process, the bearing enters between the first clamping member 243, the second clamping member 244, and the touch centering rod 246. When the other end of the touch centering rod 246 contacts the first inclined surface portion 320, under the pushing action of the first inclined surface portion 320, the touch centering rod 246 moves outward from the ring plate 240, thereby pushing the bottoms of the first clamping member 243 and the second clamping member 244 to move relatively away from each other through the inclined surface pushing block 249. Under the limitation of the torsion member 242, the outer ends of the first clamping member 243 and the second clamping member 244 move relatively closer to jointly position and clamp the bearing with the end portion of the moving touch centering rod 246. Then the ring plate 240 continues to move to the lower side of the detection and loading mechanism 500 to perform a loading test on the clamped bearing. When the test is completed, the replacement plate continues to move until the touch centering rod 246 contacts the second inclined surface portion 330 and gradually returns under the action of the torsion to release the clamping of the bearing. The continuous rotation of the ring plate 240 can dial the bearing away through the dialing mechanism 400. At the same time, the moving ring plate 240 can also automatically position, clamp, and load the next bearing through the above process, forming a multi-station cyclic loading and unloading method, eliminating the process of manual single loading, enabling continuous testing without interruption, and improving the test efficiency.

[0041] Of course, in order to prevent the ring plate 240 from rotating, the height of the touch arc block 310 in this embodiment is lower than the lower side surface of the bridge rod 230. With such a setting, the touch arc surface block avoids the bridge rod 230, facilitating the driving of the ring plate 240 to rotate under the drive of the transmission sleeve 220.

[0042] Refer to Figure 2 and Figure 4 In this embodiment, the dialing mechanism 400 includes an installation ring 410 provided on the equipment frame 110. A plurality of dialing rods 420 are provided on the installation ring 410. The dialing rods 420 are located between the bearing plate 250, the first clamping member 243, and the second clamping member 244 in terms of height. The dialing rods 420 can be set to be inclined towards the bearing plate 250. When the ring plate 240 rotates, the dialing rods 420 pass through between the bearing plate 250, the first clamping member 243, and the second clamping member 244 to dial the bearing away.

[0043] The detection and loading mechanism 500 in this embodiment includes a loading power member 510 arranged on the equipment frame 110. An installation frame 520 is provided at the lower end of the loading power member 510. A plurality of loading rotating members 530 are provided on the installation frame 520. A loading block 540 is provided at the lower end of the output shaft of the loading rotating member 530. When the bearing moves into place, the loading power member 510 drives the installation frame 520 to move downward, driving the loading block 540 to press against the bearing. At the same time, the loading rotating member 530 rotates, which can drive the loading block 540 to rotate, and a loading test is carried out on the bearing. The loading power member 510 can be an oil cylinder, which is vertically arranged. The loading rotating member 530 can be a servo motor. Both the oil cylinder and the servo motor are controlled by the control system.

[0044] Certainly, in order to achieve automatic feeding, several sorting and feeding mechanisms 600 are also provided on the periphery of the testing machine body 100 in this embodiment; Refer to Figure 4 , the sorting and feeding mechanism 600 in this embodiment includes a sorting and feeding chute 610 and a gate 620 arranged at the notch of the sorting and feeding chute 610. The gate 620 is connected to a lifting power member; the sorting and feeding chute 610 has a certain inclination angle to facilitate the sliding of the bearing. When it slides to the notch, it presents a single arrangement, and the blanking can be carried out one by one through the gate.

[0045] Finally, in order to achieve automatic control, this embodiment should also include the above-mentioned control system for controlling the multi-station automatic feeding mechanism 200, the detection and loading mechanism 500, and the sorting and feeding mechanism 600. The sorting and feeding mechanism 600 can sort the bearings. By intermittently pushing the gate, single blanking can be realized onto the bearing plate 250 and it is located between the first clamping member 243 and the second clamping member 244, ready for clamping and positioning. The control system can control the above-mentioned mechanisms to act synchronously, realizing the processes of automatic feeding and loading test of the bearing.

[0046] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Bearing life testing machine tooling, characterized in that: The invention comprises a multi-station automatic feeding mechanism (200) rotatably arranged on a testing machine body (100), the multi-station automatic feeding mechanism (200) comprising a rotating assembly rotatably arranged on the testing machine body (100), the rotating assembly being provided with a plurality of automatic positioning clamping assemblies for positioning and clamping bearings, the testing machine body (100) being provided with a trigger mechanism (300) for driving the automatic positioning clamping assemblies to clamp and release bearings, and the testing machine body (100) being further provided with a material displacing mechanism (400) for displacing bearings.

2. The bearing life testing machine tool according to claim 1, characterized in that: The testing machine body (100) comprises an equipment frame (110), and a plurality of detection loading mechanisms (500) are arranged on the upper part of the equipment frame (110).

3. The bearing life testing machine tool according to claim 2, characterized in that: The rotating assembly comprises a rotating power member (210) fixed to the lower part of the equipment frame (110); the rotating power member (210) is connected to a mounting assembly via a driving assembly; and the automatic positioning clamping assembly is mounted on the mounting assembly.

4. The bearing life testing machine tool according to claim 3, characterized in that: The driving assembly comprises a transmission sleeve (220) connected to the rotating power member (210); one end of a bridge rod (230) is connected to the peripheral side of the transmission sleeve (220); the other end of the bridge rod (230) is connected to a mounting assembly; the mounting assembly comprises a ring plate (240) connected to the bridge rod (230); and a plurality of the automatic positioning clamping assemblies are mounted on the ring plate (240).

5. The bearing life testing machine tool according to claim 4, characterized in that: The automatic positioning clamping assembly comprises a mounting seat (241) fixed on a ring plate (240), a first clamping member (243) and a second clamping member (244) being rotatably connected to the mounting seat (241) via a torque member (242), a trigger centering rod (246) being slidably connected to the mounting seat (241) via a limit member (245), the trigger centering rod (246) being located in the middle of the first clamping member (243) and the second clamping member (244), and the first clamping member (243) and the second clamping member (244) being rotatably connected to the mounting seat (241). A clamping wheel (247) is provided at the outer end of the member (244) and the top of the actuating centering rod (246); a triggering wheel (248) is provided at the inner end of the first clamping member (243) and the second clamping member (244); an inclined surface pushing block (249) is provided on the actuating centering rod (246); the triggering wheel (248) abuts against the inclined surface pushing block (249); the inner end of the actuating centering rod (246) is in contact with and connected to the actuating mechanism (300); and a bearing plate (250) is provided at the outer end of the mounting seat (241).

6. The bearing life testing machine tool according to claim 2, characterized in that: The trigger mechanism (300) comprises a plurality of trigger arc blocks (310) arranged on the equipment frame (110), and the trigger arc blocks (310) comprise a first inclined portion (320) for pushing the trigger centering rod (246) to move outward, a retaining portion for retaining the position of the trigger centering rod (246), and a second inclined portion (330) for causing the trigger centering rod (246) to return to its original position.

7. The bearing life testing machine tool according to claim 6, characterized in that: The height of the trigger arc block (310) is lower than the lower side of the bridge rod (230).

8. The bearing life testing machine tool according to claim 7, characterized in that: The material shifting mechanism (400) comprises a mounting ring (410) arranged on the equipment frame (110), and a plurality of material shifting rods (420) are arranged on the mounting ring (410). The material shifting rods (420) are located at a height between the bearing plate (250) and the first clamping member (243) and the second clamping member (244).

9. The bearing life testing machine tool according to claim 2, characterized in that: The detection loading mechanism (500) comprises a loading power member (510) arranged on a device frame (110); a mounting frame (520) is provided at the lower end of the loading power member (510); a plurality of loading rotating members (530) are provided on the mounting frame (520); and a loading block (540) is provided at the lower end of the output shaft of the loading rotating member (530).

10. The bearing life testing machine tool according to any one of claims 2 to 9, characterized in that: A plurality of sorting and feeding mechanisms (600) are also provided on the peripheral side of the testing machine body (100); The sorting and feeding mechanism (600) comprises a sorting and feeding trough (610) and a gate plate (620) arranged at a notch of the sorting and feeding trough (610), wherein the gate plate (620) is connected to a lifting power member; It also includes a control system for controlling the multi-station automatic feeding mechanism (200), the detection loading mechanism (500), and the sorting feeding mechanism (600).

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