Reliability test clamp

Abstract

The utility model provides a reliability test fixture which comprises a transition plate, a first side plate, a second side plate, a third side plate, a first bearing plate, a second bearing plate, a third bearing plate and a fourth bearing plate, and an angle adjusting mechanism is arranged at the bottom of the transition plate. Through the arrangement of the angle adjusting mechanism, the angle of the transition plate can be adjusted above the vibration table, and then the angles of the first side plate, the second side plate, the third side plate, the first bearing plate, the second bearing plate, the third bearing plate and the fourth bearing plate can be synchronously adjusted; therefore, the to-be-tested product can better simulate the real working environment, the accuracy and reliability of the test result are improved, and the overall connection strength is improved through the first mounting structure and the second mounting structure. Therefore, when the transition plate is inclined, the first side plate, the second side plate, the third side plate, the first bearing plate, the third bearing plate and the fourth bearing plate are prevented from falling off, and normal testing of a to-be-tested product is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of test fixtures, in particular to a reliability test fixture. Background Technique

[0002] Reliability test refers to measuring and verifying the reliability of a product through tests. It is an important means to test whether a product meets the reliability index requirements and is also an important means to control the product quality. Its test plan is closely related to the number of products, technical indicators and test plan number, and the technical indicators and test plan number are generally related to the product technical maturity.

[0003] The utility model patent with the publication number "CN212391187U" provides a reliability test fixture and a reliability test device, including a transition plate, a first side plate, a second side plate and a first load-bearing plate. The transition plate is used to be installed on a vibration table. The first side plate and the second side plate are relatively spaced and installed on the transition plate, and the first load-bearing plate is relatively spaced from the transition plate. This device does not need to manufacture suitable fixtures for each single component of multiple groups of component products, thus avoiding delaying the progress and reducing the fixture cost; it does not need to conduct reliability tests on single groups of components separately, and can meet the installation requirements of multiple groups of component products to a greater extent.

[0004] However, the above solution still has the following defects:

[0005] The above solution is installed on the vibration table through a transition plate. Since the transition plate is horizontal, the products to be tested are also horizontally installed on the transition plate, the first side plate, the second side plate and the first load-bearing plate. However, for some special products to be tested, sometimes it is necessary to conduct vibration tests at different angles to simulate the actual working environment of the products to be tested. The above solution cannot adjust the installation angle, resulting in a relatively small overall application range. Content of the Utility Model

[0006] The purpose of the utility model is to provide a reliability test fixture to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A reliability test fixture includes a transition plate, a first side plate, a second side plate, a third side plate, a first load-bearing plate, a second load-bearing plate, a third load-bearing plate and a fourth load-bearing plate. An angle adjustment mechanism is provided at the bottom of the transition plate. The angle adjustment mechanism includes a base, a connecting plate, a traction shaft, a gear and a rack. The base is installed on a vibration table. The connecting plate is vertically fixed below the transition plate. The traction shaft is rotatably arranged on the side of the base. The connecting plate is fixedly arranged on the traction shaft. The gear is fixed at one end of the traction shaft. The rack is movably arranged on the side of the base through a driving mechanism and meshes with the gear.

[0009] The first side plate, the second side plate and the third side plate are arranged at intervals on the surface of the transition plate. The first load-bearing plate and the second load-bearing plate are arranged in parallel between the first side plate and the second side plate. The third load-bearing plate and the fourth load-bearing plate are arranged in parallel between the second side plate and the third side plate.

[0010] Preferably, the driving mechanism includes a traction plate, a limiting plate, a threaded rod and a limiting rod. The threaded rod is rotatably arranged on the surface of the base. The limiting rod is fixedly arranged on the surface of the base. The traction plate is threadedly connected to the surface of the threaded rod. The limiting plate is slidably arranged on the surface of the limiting rod. Both ends of the traction plate and the limiting plate are connected to the rack.

[0011] Preferably, a support mechanism is provided on the side of the base. The support mechanism includes a support rod, a support seat, a groove and a roller. The top end of the support rod is fixed to the bottom of the support seat. The end of the support rod is fixed to the side of the base. The groove is provided on the top surface of the support seat. The roller is rotatably arranged on the inner wall of the groove. The rack is slidably arranged in the groove, and the bottom of the rack is in contact with the surface of the roller.

[0012] Preferably, the first side plate, the second side plate and the third side plate are vertically installed on the top of the transition plate through a first installation structure. One side of the first load-bearing plate is vertically fixed to the top of the first side plate, and the other side of the first load-bearing plate is connected to the surface of the second side plate through a second installation structure.

[0013] Preferably, both sides of the second load-bearing plate are vertically fixed to the tops of the second side plate and the third side plate respectively. The third load-bearing plate is connected between the first side plate and the second side plate through a second installation structure. The fourth load-bearing plate is connected between the second side plate and the third side plate through a second installation structure.

[0014] Preferably, the first mounting structure includes a dovetail groove, a dovetail block, an ear seat and a bolt. The dovetail groove is arranged on the surface of the transition plate. The dovetail block is arranged at the bottoms of the first side plate, the second side plate and the third side plate. The ear seat is fixed to the sides of the first side plate, the second side plate and the third side plate. The dovetail block is mounted in the dovetail groove. The ear seat is fixed to the surface of the transition plate by the bolt.

[0015] Preferably, the second mounting structure includes a chute, a receiving groove and a limiting strip. The limiting strip is arranged on one side of the first load-bearing plate, the third load-bearing plate and the fourth load-bearing plate. The chute and the receiving groove are arranged on the sides of the first side plate, the second side plate and the third side plate. The chute and the receiving groove communicate with each other. The limiting strip is engaged in the receiving groove.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] With the provision of the angle adjustment mechanism in the present utility model, the angle of the transition plate can be adjusted above the vibration table, and further, the angles of the first side plate, the second side plate, the third side plate, the first load-bearing plate, the second load-bearing plate, the third load-bearing plate and the fourth load-bearing plate can be synchronously adjusted, so that the product to be tested can better simulate the real working environment, improving the accuracy and reliability of the test results. Moreover, the overall connection strength is increased through the first mounting structure and the second mounting structure, so that when the transition plate is tilted, the first side plate, the second side plate, the third side plate, the first load-bearing plate, the third load-bearing plate and the fourth load-bearing plate will not fall off, facilitating the normal test of the product to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the main structure of the first mounting structure of the present utility model;

[0020] Figure 3 is a schematic diagram of the main structure of the second mounting structure of the present utility model;

[0021] Figure 4 is a schematic diagram of the main structure of the driving mechanism of the present utility model;

[0022] Figure 5 is a schematic diagram of the main structure of the supporting mechanism of the present utility model.

[0023] In the figure: 1. Transition plate; 2. First side plate; 3. Second side plate; 4. Third side plate; 5. First load-bearing plate; 6. Second load-bearing plate; 7. Third load-bearing plate; 8. Fourth load-bearing plate; 9. Base; 10. Connecting plate; 11. Traction shaft; 12. Gear; 13. Rack; 14. Traction plate; 15. Limiting plate; 16. Threaded rod; 17. Limiting rod; 18. Support rod; 19. Support base; 20. Groove; 21. Roller; 22. Dovetail groove; 23. Dovetail block; 24. Ear seat; 25. Bolt; 26. Slide groove; 27. Accommodating groove; 28. Limiting strip. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

[0025] Please refer to Figures 1-5 , this utility model provides a reliability test fixture, including a transition plate 1, a first side plate 2, a second side plate 3, a third side plate 4, a first load-bearing plate 5, a second load-bearing plate 6, a third load-bearing plate 7 and a fourth load-bearing plate 8. An angle adjustment mechanism is provided at the bottom of the transition plate 1. The angle adjustment mechanism includes a base 9, a connecting plate 10, a traction shaft 11, a gear 12 and a rack 13. The base 9 is installed on the vibration table. The connecting plate 10 is vertically fixed below the transition plate 1. The traction shaft 11 is rotatably arranged on the side of the base 9. The connecting plate 10 is fixedly arranged on the traction shaft 11. The gear 12 is fixed at one end of the traction shaft 11. The rack 13 is movably arranged on the side of the base 9 through a driving mechanism and meshes with the gear 12. The first side plate 2, the second side plate 3 and the third side plate 4 are arranged at intervals on the surface of the transition plate 1. The first load-bearing plate 5 and the second load-bearing plate 6 are arranged in parallel between the first side plate 2 and the second side plate 3. The third load-bearing plate 7 and the fourth load-bearing plate 8 are arranged in parallel between the second side plate 3 and the third side plate 4.

[0026] Please refer to Figure 1, fix the transition plate 1 on the vibration table. The product to be tested is specifically multiple sets of component products. Divide the multiple sets of component products into multiple single - set components. The multiple single - set components are respectively fixed on the transition plate 1, the first side plate 2, the second side plate 3, the third side plate 4, the first load - bearing plate 5, the second load - bearing plate 6, the third load - bearing plate 7, and the fourth load - bearing plate 8 according to their actual volume and size. Then, vibrate through the vibration table at a preset vibration frequency. During this process, drive the rack 13 to move horizontally through the driving mechanism. When the rack 13 moves, it can drive the gear 12 to rotate, and the gear 12 can drive the connecting plate 10 to change the angle through the traction shaft 11. Furthermore, the connecting plate 10 drives the entire transition plate 1 to change the angle, thus realizing the synchronous change of the angles of the first side plate 2, the second side plate 3, the third side plate 4, the first load - bearing plate 5, the second load - bearing plate 6, the third load - bearing plate 7, and the fourth load - bearing plate 8.

[0027] The driving mechanism includes a traction plate 14, a limiting plate 15, a threaded rod 16, and a limiting rod 17. The threaded rod 16 is rotatably arranged on the surface of the base 9, the limiting rod 17 is fixedly arranged on the surface of the base 9, the traction plate 14 is threadedly connected to the surface of the threaded rod 16, the limiting plate 15 is slidably arranged on the surface of the limiting rod 17, and both ends of the traction plate 14 and the limiting plate 15 are connected to the rack 13.

[0028] Please refer to Figure 4 , when rotating the threaded rod 16, the threaded rod 16 can drive the traction plate 14 to move linearly on its surface. Furthermore, the traction plate 14 drives the limiting plate 15 to move synchronously on the surface of the limiting rod 17 through the rack 13. The displacement of the rack 13 is realized by rotating the threaded rod 16, so as to facilitate the staff to precisely control the displacement of the rack 13, and thus facilitate the precise adjustment of the angle.

[0029] A support mechanism is arranged on the side of the base 9. The support mechanism includes a support rod 18, a support seat 19, a groove 20, and a roller 21. The top end of the support rod 18 is fixed to the bottom of the support seat 19, the end of the support rod 18 is fixed to the side of the base 9, the groove 20 is arranged on the top surface of the support seat 19, the roller 21 is rotatably arranged on the inner wall of the groove 20, the rack 13 is slidably arranged in the groove 20, and the bottom of the rack 13 is in contact with the surface of the roller 21.

[0030] Please refer to Figure 4 and 5, since the bottom of the rack 13 is in a suspended state, when the threaded rod 16 is rotated, the threaded rod 16 will drive the rack 13 to produce a slight displacement through the traction plate 14, thus affecting the meshing between the rack 13 and the gear 12. Therefore, a support mechanism is provided in this embodiment, which enables the rack 13 to only move horizontally inside the groove 20 under the drive of the traction plate 14. By setting the groove 20 and the support seat 19, the movement track of the rack 13 is restricted, thereby realizing the limit of the rack 13. And when the rack 13 moves horizontally, rolling friction will be generated with the roller 21, thereby reducing the friction force received when the rack 13 moves.

[0031] The first side plate 2, the second side plate 3 and the third side plate 4 are vertically installed on the top of the transition plate 1 through the first installation structure. One side of the first load-bearing plate 5 is vertically fixed on the top of the first side plate 2, and the other side of the first load-bearing plate 5 is connected to the surface of the second side plate 3 through the second installation structure. Both sides of the second load-bearing plate 6 are vertically fixed on the tops of the second side plate 3 and the third side plate 4 respectively. The third load-bearing plate 7 is connected between the first side plate 2 and the second side plate 3 through the second installation structure. The fourth load-bearing plate 8 is connected between the second side plate 3 and the third side plate 4 through the second installation structure.

[0032] Please refer to Figure 1 , 2 and 3. When the angle of the transition plate 1 is adjusted, the first side plate 2, the second side plate 3, the third side plate 4, the first load-bearing plate 5, the second load-bearing plate 6, the third load-bearing plate 7 and the fourth load-bearing plate 8 are also in an inclined state. However, at this time, the third load-bearing plate 7, the fourth load-bearing plate 8, the first side plate 2, the second side plate 3 and the third side plate 4 may slide off the transition plate 1 due to the inclination. Therefore, the first installation structure and the second installation structure are provided at the corresponding positions in this embodiment to increase the overall connection strength.

[0033] The first installation structure includes a dovetail groove 22, a dovetail block 23, an ear seat 24 and a bolt 25. The dovetail groove 22 is provided on the surface of the transition plate 1. The dovetail block 23 is provided at the bottoms of the first side plate 2, the second side plate 3 and the third side plate 4. The ear seat 24 is fixed on the sides of the first side plate 2, the second side plate 3 and the third side plate 4. The dovetail block 23 is installed in the dovetail groove 22, and the ear seat 24 is fixed on the surface of the transition plate 1 through the bolt 25.

[0034] Please refer to Figure 2 and 3 , through the setting of the ear seat 24 and the bolt 25, the fixed connection between the first side plate 2, the second side plate 3, the third side plate 4 and the transition plate 1 is realized, and the limit can be carried out in the vertical direction. Even when the transition plate 1 is in an inclined state, the first side plate 2, the second side plate 3 and the third side plate 4 will not slide off.

[0035] The second installation structure includes a sliding groove 26, a receiving groove 27, and a limiting strip 28. The limiting strip 28 is provided on one side of the first load-bearing plate 5, the third load-bearing plate 7, and the fourth load-bearing plate 8. The sliding groove 26 and the receiving groove 27 are provided on the sides of the first side plate 2, the second side plate 3, and the third side plate 4. The sliding groove 26 and the receiving groove 27 communicate with each other, and the limiting strip 28 is engaged in the receiving groove 27.

[0036] Please refer to Figure 2 and 3 , the receiving groove 27 is provided below the sliding groove 26, and the overall length of the receiving groove 27 is less than the overall length of the sliding groove 26. This enables that when the transition plate 1 is in an inclined state, the inclined third load-bearing plate 7 and the fourth load-bearing plate 8 will drive the limiting strip 28 to abut against the inner wall of the receiving groove 27 under the action of gravity, but will not disengage from the inner wall of the receiving groove 27. Only by first lifting the third load-bearing plate 7 or the fourth load-bearing plate 8 upward to move the limiting strip 28 into the sliding groove 26 and then laterally moving the third load-bearing plate 7 or the fourth load-bearing plate 8 can the separation of the limiting strip 28 from the sliding groove 26 be achieved.

[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reliability test fixture, comprising a transition plate (1), a first side plate (2), a second side plate (3), a third side plate (4), a first load-bearing plate (5), a second load-bearing plate (6), a third load-bearing plate (7) and a fourth load-bearing plate (8), characterized in that: An angle adjustment mechanism is provided at the bottom of the transition plate (1), and the angle adjustment mechanism comprises a base (9), a connecting plate (10), a traction shaft (11), a gear (12) and a rack (13); the base (9) is mounted on a vibration table; the connecting plate (10) is vertically fixed below the transition plate (1); the traction shaft (11) is rotatably arranged on a side of the base (9); the connecting plate (10) is fixedly arranged on the traction shaft (11); the gear (12) is fixed to one end of the traction shaft (11); and the rack (13) is movably arranged on a side of the base (9) through a driving mechanism and meshes with the gear (12); The first side plate (2), the second side plate (3) and the third side plate (4) are arranged at intervals on the surface of the transition plate (1); the first load-bearing plate (5) and the second load-bearing plate (6) are arranged in parallel between the first side plate (2) and the second side plate (3); and the third load-bearing plate (7) and the fourth load-bearing plate (8) are arranged in parallel between the second side plate (3) and the third side plate (4).

2. A reliability test fixture according to claim 1, characterized in that: The driving mechanism comprises a traction plate (14), a limiting plate (15), a threaded rod (16) and a limiting rod (17); the threaded rod (16) is rotatably arranged on the surface of the base (9); the limiting rod (17) is fixedly arranged on the surface of the base (9); the traction plate (14) is threadedly connected to the surface of the threaded rod (16); the limiting plate (15) is slidably arranged on the surface of the limiting rod (17); and both ends of the traction plate (14) and the limiting plate (15) are connected to the rack (13).

3. A reliability test fixture according to claim 2, characterized in that: A support mechanism is arranged on the side of the base (9), and the support mechanism comprises a support rod (18), a support seat (19), a groove (20) and a roller (21); the top end of the support rod (18) is fixed to the bottom of the support seat (19), the end of the support rod (18) is fixed to the side of the base (9), the groove (20) is arranged on the top surface of the support seat (19), the roller (21) is rotatably arranged on the inner wall of the groove (20), the rack (13) is slidably arranged in the groove (20), and the bottom of the rack (13) is in contact with the surface of the roller (21).

4. A reliability test fixture according to claim 1, characterized in that: The first side panel (2), the second side panel (3) and the third side panel (4) are vertically mounted on the top of the transition panel (1) via a first mounting structure, one side of the first load-bearing panel (5) is vertically fixed to the top of the first side panel (2), and the other side of the first load-bearing panel (5) is connected to the surface of the second side panel (3) via a second mounting structure.

5. A reliability test fixture according to claim 4, characterized in that: The two sides of the second load-bearing plate (6) are respectively vertically fixed to the top of the second side plate (3) and the third side plate (4); the third load-bearing plate (7) is connected between the first side plate (2) and the second side plate (3) via a second mounting structure; and the fourth load-bearing plate (8) is connected between the second side plate (3) and the third side plate (4) via a second mounting structure.

6. A reliability test fixture according to claim 5, characterized in that: The first mounting structure comprises a dovetail groove (22), a dovetail block (23), an ear seat (24) and a bolt (25); the dovetail groove (22) is arranged on the surface of the transition plate (1); the dovetail block (23) is arranged on the bottom of the first side plate (2), the second side plate (3) and the third side plate (4); the ear seat (24) is fixed to the side surfaces of the first side plate (2), the second side plate (3) and the third side plate (4); the dovetail block (23) is installed in the dovetail groove (22); and the ear seat (24) is fixed to the surface of the transition plate (1) by means of bolts (25).

7. A reliability test fixture according to claim 5, characterized in that: The second mounting structure comprises a slide groove (26), a receiving groove (27) and a limit strip (28); the limit strip (28) is arranged on one side of the first load-bearing plate (5), the third load-bearing plate (7) and the fourth load-bearing plate (8); the slide groove (26) and the receiving groove (27) are arranged on the side of the first side plate (2), the second side plate (3) and the third side plate (4); the slide groove (26) and the receiving groove (27) are connected to each other; and the limit strip (28) is engaged in the receiving groove (27).

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