Clamp for testing shear strength
By designing a fixture containing an electric telescopic rod, a limiting ring and a motor, the problem of the translocation of the thermoelectric material barrier layer in the shear strength test is solved, and the stability and accuracy of the test process are achieved.
Patent Information
- Application Number
- CN202422203802.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-09
AI Technical Summary
In the shear strength test of the barrier layer of the thermoelectric material surface, existing fixtures are difficult to effectively fix, resulting in the thermoelectric material being easily displaced during the test and insufficient stability.
A fixture including a mounting table, an electric telescopic rod, a limit ring, a motor, a screw and a support table was designed. Through the cooperation of the electric telescopic rod and a motor, the double-sided limit of the thermoelectric material barrier layer is achieved, and the stability is improved by using dampers and springs to ensure the fixing effect during the test.
It effectively prevents the barrier layer of thermoelectric material from displaced during the test, improves the stability of the test, and facilitates the operator to accurately measure the shear strength.
Smart Images
Figure CN223154665U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of anti-shear test fixtures, and more specifically, to a fixture for anti-shear strength testing. Background Art
[0002] Thermoelectric materials are materials that can directly convert thermal energy into electrical energy (or vice versa) and have the thermoelectric effect. Usually, a barrier layer is provided on the surface of thermoelectric materials, which is a thin film or coating that can be added to the surface of thermoelectric materials to improve their performance or protect the materials, improve the contact resistance, reduce the contact resistance between the thermoelectric material and the electrode, improve the thermoelectric efficiency, prevent oxidation, protect the thermoelectric material from environmental factors (such as oxidation, corrosion), and extend the service life. These barrier layers are usually made of metals, ceramics, or other functional materials, and their specific composition and thickness depend on the application requirements and material properties.
[0003] In the specific anti-shear strength test of the barrier layer on the surface of thermoelectric materials, it is usually necessary to use a fixture to limit one side of the thermoelectric material. After the limiting is completed, a shearing tool is directly used to test its anti-shear strength. Although this method can limit the thermoelectric material, during the test, the thermoelectric material is prone to displacement, and the stability is insufficient, which is not convenient for the operator to use. Summary of the Utility Model
[0004] To make up for the above deficiencies, the utility model provides a fixture for anti-shear strength testing that overcomes the above technical problems or at least partially solves the above problems.
[0005] The utility model is implemented as follows:
[0006] The utility model provides a fixture for anti-shear strength testing, including a mounting table,
[0007] A mounting frame is provided on the top of the mounting table. An assembly frame is slidably provided on the top of the mounting table. A fixing frame is provided on the top of the assembly frame. Electric telescopic rods are provided at the bottoms of the fixing frame and the mounting frame. A connecting frame is provided on the surface of the output end of one group of the electric telescopic rods. Limiting rings are provided at the bottoms of both groups of the electric telescopic rods. Two limiting rings are provided at the bottom of the connecting frame;
[0008] A thermoelectric material barrier layer is provided at the bottom of the limiting ring. A groove is provided on one side of the mounting table.
[0009] In a preferred embodiment, a limiting table is provided on one side of the mounting frame, and a limiting groove is provided inside the limiting table.
[0010] In a preferred embodiment, a support platform is provided on one side of the assembly frame, and the thermoelectric material barrier layer is disposed on the top of the support platform and inside the limiting groove.
[0011] In a preferred embodiment, a damper is provided inside the limiting platform, a spring is provided on the surface of the damper, and the spring is disposed between the limiting platform and the mounting platform.
[0012] In a preferred embodiment, a motor is provided on one side of the mounting platform, and a lead screw is provided at the output end of the motor.
[0013] In a preferred embodiment, a sliding groove is formed on the surface of the mounting platform, three sets of sliders are provided at the bottom of the assembly frame, and the lead screw is threadedly connected to the inside of one of the sliders.
[0014] In a preferred embodiment, two sets of sliding rods are provided inside the sliding groove, and the sliding rods are respectively inserted into the inside of the two sets of sliders.
[0015] In a preferred embodiment, a bearing sleeve is provided inside the sliding groove, one end of the lead screw is connected to the bearing sleeve, and support legs are provided at the bottom of the mounting platform.
[0016] A fixture for testing the shear strength provided by the present utility model has the following beneficial effects:
[0017] 1. Through the mutual cooperation of the thermoelectric material barrier layer, the limiting groove, the electric telescopic rod, the limiting ring, the assembly frame and the connecting frame, one side of the thermoelectric material barrier layer is placed in the limiting groove, the electric telescopic rod is started to drive the limiting ring downward, so as to limit one side of the thermoelectric material barrier layer. The motor is started to drive the lead screw to rotate, and the lead screw drives the assembly frame and the fixing frame to move synchronously. The support platform can support the other side of the thermoelectric material barrier layer. The electric telescopic rod is started to limit the other side of the thermoelectric material barrier layer. A cutting tool is used to test the shear strength of the thermoelectric material barrier layer. Therefore, during the test, it will not be displaced, improving stability.
[0018] 2. Through the damper, the spring, the groove body and the support legs, the use effect of the limiting platform can be improved. By providing the groove body, it is convenient for the operator to approach the thermoelectric material barrier layer for testing. By providing the support legs, the stability of the mounting platform can be improved, and further the stability of the thermoelectric material barrier layer can be improved, facilitating the operator to use. Description of the Drawings
[0019] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the embodiments. It should be understood that the following attached drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings;
[0020] Figure 1 is the overall three-dimensional view provided by the embodiment of the present utility model;
[0021] Figure 2 is the schematic diagram of the top structure of the installation platform provided by the embodiment of the present utility model;
[0022] Figure 3 provided by the embodiment of the present utility model Figure 2 is the enlarged view of part A in;
[0023] Figure 4 is the schematic diagram of the top and bottom structures of the installation platform provided by the embodiment of the present utility model;
[0024] In the figure: 11, installation platform; 12, installation frame; 13, electric telescopic rod; 14, fixing frame; 15, motor; 16, assembly frame; 17, lead screw; 18, connecting frame; 19, limiting ring; 2, thermoelectric material barrier layer; 21, bearing sleeve; 22, chute; 23, limiting platform; 24, damper; 25, spring; 26, groove body; 27, limiting groove; 28, support leg; 29, sliding rod; 3, support platform. Specific embodiments
[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present utility model.
[0026] Refer to Figures 1-4, the present utility model provides a technical solution: a fixture for anti-shear strength testing, including a mounting table 11, a mounting frame 12 is provided on the top of the mounting table 11, an assembly frame 16 is slidably provided on the top of the mounting table 11, a fixing frame 14 is provided on the top of the assembly frame 16, electric telescopic rods 13 are provided at the bottoms of both the fixing frame 14 and the mounting frame 12, a connecting frame 18 is provided on the surface of the output end of one group of electric telescopic rods 13, limiting rings 19 are provided at the bottoms of both groups of electric telescopic rods 13, and two limiting rings 19 are provided at the bottom of the connecting frame 18. Through the mutual cooperation of the thermoelectric material barrier layer 2, the limiting groove 27, the electric telescopic rod 13, the limiting ring 19, the assembly frame 16 and the connecting frame 18, when the operator needs to test the strength of the thermoelectric material barrier layer 2, the operator can first place one side of the thermoelectric material barrier layer 2 inside the limiting groove 27, and then the operator can start the electric telescopic rod 13 on the mounting frame 12 to drive the limiting ring 19 to move downward. When it moves to the thermoelectric material barrier layer 2, the electric telescopic rod 13 is turned off, so as to limit one side of the thermoelectric material barrier layer 2. After the limiting is completed, the operator can start the motor 15 according to the size of the thermoelectric material barrier layer 2 to drive the lead screw 17 to rotate, and the lead screw 17 drives the assembly frame 16 and the fixing frame 14 to move synchronously. When it moves to the other side of the thermoelectric material barrier layer 2, the support table 3 can support the other side of the thermoelectric material barrier layer 2. After completion, the operator can start the electric telescopic rod 13 on the fixing frame 14 to move downward. When moving, it can drive the connecting frame 18 to move. When the connecting frame 18 moves, it can drive the three limiting rings 19 to move synchronously, so as to limit the other side of the thermoelectric material barrier layer 2. After the limiting is completed, the operator uses a cutting tool to test the anti-shear strength of the thermoelectric material barrier layer 2, so that the thermoelectric material barrier layer 2 will not be displaced during the test, improving stability.
[0027] Refer to Figures 1-4, in a preferred embodiment, a thermoelectric material barrier layer 2 is provided at the bottom of the limit ring 19. A groove 26 is formed on one side of the mounting table 11. A limit platform 23 is provided on one side of the mounting frame 12. A limit groove 27 is formed inside the limit platform 23. A support platform 3 is provided on one side of the assembly frame 16. The thermoelectric material barrier layer 2 is disposed on the top of the support platform 3 and inside the limit groove 27. A damper 24 is provided inside the limit platform 23. A spring 25 is provided on the surface of the damper 24. The spring 25 is disposed between the limit platform 23 and the mounting table 11. Through the damper 24, the spring 25, the groove 26 and the support leg 28, the use effect of the limit platform 23 can be improved. By providing the groove 26, it is convenient for the operator to approach the thermoelectric material barrier layer 2 for testing. By providing the support leg 28, the stability of the mounting table 11 can be improved, and further the stability of the thermoelectric material barrier layer 2 can be improved, facilitating the operator to use.
[0028] Referring to Figures 1-4 , in a preferred embodiment, a motor 15 is provided on one side of the mounting table 11. A lead screw 17 is provided at the output end of the motor 15. A sliding groove 22 is formed on the surface of the mounting table 11. Three sets of sliders are provided at the bottom of the assembly frame 16. The lead screw 17 is threadedly connected to the inside of one of the sliders. Two sets of sliding rods 29 are provided inside the sliding groove 22. By providing the sliding rods 29, the position of the assembly frame 16 can be limited. The sliding rods 29 are respectively inserted into the inside of the two sets of sliders. A bearing sleeve 21 is provided inside the sliding groove 22. One end of the lead screw 17 is connected to the bearing sleeve 21. A support leg 28 is provided at the bottom of the mounting table 11. An anti-slip pad is provided at the bottom of the support leg 28, so as to improve the stability of the support leg 28.
[0029] Specifically, the working process or working principle of the clamp for shear strength test is as follows: in the specific shear strength test of the surface barrier layer of the thermoelectric material, it is usually necessary to use a clamp to limit one side of the thermoelectric material, and then directly use a shear tool to test its shear strength. Although this method can limit the thermoelectric material, during the test, the thermoelectric material is prone to displacement, and the stability is insufficient, which is not convenient for the operator to use. Therefore, the technical solution can solve the above problems. When the operator needs to perform a strength test on the thermoelectric material barrier layer 2, the operator can first place one side of the thermoelectric material barrier layer 2 inside the limiting groove 27, and then the operator can start the electric telescopic rod 13 on the mounting frame 12 to drive the limiting ring 19 to move downward. When it moves to the thermoelectric material barrier layer 2, the electric telescopic rod 13 is closed, so that one side of the thermoelectric material barrier layer 2 can be limited. After the limiting is completed, the operator can start the motor 15 according to the size of the thermoelectric material barrier layer 2 to drive the screw 17 to rotate, and the screw 17 drives the assembly frame 16 and the fixing frame 14 moves synchronously, and when it moves to the other side of the thermoelectric material barrier layer 2, the support platform 3 can support the other side of the thermoelectric material barrier layer 2. After completion, the operator can start the electric telescopic rod 13 on the fixed frame 14 to move downward. When moving, it can drive the connecting frame 18 to move. When the connecting frame 18 moves, it can drive the three sets of limit rings 19 to move synchronously, so that the other side of the thermoelectric material barrier layer 2 can be limited. After the limitation is completed, the operator uses the cutting tool to test the shear strength of the thermoelectric material barrier layer 2, and then during the test, the thermoelectric material barrier layer 2 will not be displaced, the stability is improved, and it is convenient for the operator to use it. By setting the damper 24 and the spring 25, the use effect of the limit platform 23 can be improved. By setting the groove body 26, it is convenient for the operator to approach the thermoelectric material barrier layer 2 and test it. By setting the support leg 28, the stability of the mounting platform 11 can be improved, and then the stability of the thermoelectric material barrier layer 2 can be improved, which is convenient for the operator to use. All processes are completed.
[0030] It should be noted that the electric telescopic rod 13, the motor 15 and the damper 24 are electrically connected to the external power supply and are devices or equipment existing in the prior art, or are devices or equipment that can be realized in the prior art. Their power supply, specific composition and principles are clear to those skilled in the art, so they will not be described in detail.
Claims
1. A fixture for anti-shear strength testing, characterized in that: It includes an installation table (11). At the top of the installation table (11), there is an installation frame (12). A assembling frame (16) is slidably arranged on the top of the installation table (11). At the top of the assembling frame (16), there is a fixing frame (14). Electric telescopic rods (13) are arranged at the bottoms of both the fixing frame (14) and the installation frame (12). On the surface of the output end of one group of the electric telescopic rods (13), there is a connecting frame (18). Limit rings (19) are arranged at the bottoms of both groups of the electric telescopic rods (13). Two limit rings (19) are arranged at the bottom of the connecting frame (18). At the bottom of the limit ring (19), there is a thermoelectric material blocking layer (2). A groove body (26) is formed on one side of the installation table (11).
2. The fixture for anti-shear strength test according to claim 1, characterized in that, On one side of the installation frame (12), there is a limit table (23). A limit groove (27) is formed inside the limit table (23).
3. The fixture for anti-shear strength test according to claim 2, characterized in that, On one side of the assembling frame (16), there is a support table (3). The thermoelectric material blocking layer (2) is arranged on the top of the support table (3) and inside the limit groove (27).
4. The fixture for anti-shear strength test according to claim 3, characterized in that A damper (24) is arranged inside the limit table (23). A spring (25) is arranged on the surface of the damper (24). The spring (25) is arranged between the limit table (23) and the installation table (11).
5. The fixture for anti-shear strength test according to claim 4, characterized in that, On one side of the installation table (11), there is a motor (15). A lead screw (17) is arranged at the output end of the motor (15).
6. The fixture for anti-shear strength test according to claim 5, characterized in that, A sliding groove (22) is formed on the surface of the installation table (11). Three sliders are arranged at the bottom of the assembling frame (16). The lead screw (17) is threadedly connected inside one of the sliders.
7. A fixture for anti-shear strength testing according to claim 6, characterized in that Two sliding rods (29) are arranged inside the sliding groove (22). The sliding rods (29) are respectively inserted into the interiors of the two sliders.
8. A fixture for anti-shear strength testing according to claim 7, characterized in that, A bearing sleeve (21) is arranged inside the sliding groove (22). One end of the lead screw (17) is connected to the bearing sleeve (21). Support legs (28) are arranged at the bottom of the installation table (11).