Typical stress joint strength performance test clamp

Abstract

The utility model relates to a typical stress joint strength performance test fixture, which belongs to the technical field of test fixtures, and comprises a support fixture for supporting a typical stress joint and a loading fixture for applying external force to the typical stress joint, the typical stress joint is detachably connected with the support fixture, and the loading fixture is detachably connected with the typical stress joint. And the typical stress joint is rotationally connected with the loading clamp. The special fixture is designed aiming at a specific workpiece, so that a test piece can be kept at a stable position in a test process, errors caused by workpiece displacement are reduced, and the test accuracy is improved; according to the design of the special fixture, the operation convenience is considered, the operation difficulty is reduced, and testers can easily understand and use the fixture; the clamp can be operated on different testing machines, has high adaptability and can play a role in various testing scenes; the special clamp is simple in structure, easy to disassemble and clean and beneficial to keeping equipment clean, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of test fixtures, in particular to a typical stress-bearing joint strength performance test fixture. Background Art

[0002] When conducting strength performance tests on typical stress-bearing joints, the typical stress-bearing joints need to be tilted at a certain angle before external force is applied to the joints. When conducting strength performance tests on typical stress-bearing joints, it is necessary to keep the typical stress-bearing joints stable so as to obtain accurate performance test data. In order to meet the test needs, it is necessary to design a strength performance test fixture for typical stress-bearing joints. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides a typical stress-bearing joint strength performance test fixture, which has a stable structure and is easy to operate and maintain.

[0004] In order to achieve the above-mentioned purpose of the invention, the utility model provides a typical stress-bearing joint strength performance test fixture, including a supporting fixture for supporting the typical stress-bearing joint and a loading fixture for applying external force to the typical stress-bearing joint, the typical stress-bearing joint is detachably connected to the supporting fixture, and the typical stress-bearing joint is rotatably connected to the loading fixture.

[0005] Furthermore, the supporting fixture comprises a supporting plate, and the typical stress-bearing joint is mounted on the supporting plate by threaded connection.

[0006] Furthermore, the support fixture also includes a bottom plate, the support plate and the bottom plate are arranged at a certain angle, and the support plate is connected to the bottom plate through a side plate.

[0007] Furthermore, a positioning pin is provided on a side wall of the bottom plate away from the support plate, and the positioning pin is a polygonal positioning pin.

[0008] Furthermore, the loading fixture comprises a connecting block, the connecting block is provided with at least one groove, and the typical force-bearing joint is provided with a protrusion that cooperates with the groove.

[0009] Furthermore, the connection block is provided with two grooves, and the typical force-bearing joint is provided with two protrusions that cooperate with the grooves.

[0010] Furthermore, the protrusion is provided with a mounting hole, the connecting block is provided with a limiting hole aligned with the mounting hole, and the protrusion and the connecting block are connected by a connecting pin passing through the mounting hole and the limiting hole.

[0011] Furthermore, a disc-shaped connecting plate is provided on one side of the connecting block away from the groove, and a plurality of connecting threaded holes are provided on the disc-shaped connecting plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] Ensure test accuracy: This special fixture is designed for specific workpieces, which can ensure that the test piece maintains a stable position during the test, reduce errors caused by workpiece displacement, and improve test accuracy;

[0014] Simplify the operation process: The design of this special fixture takes into account the convenience of operation, reduces the difficulty of operation, and the test personnel can easily understand and use it;

[0015] Strong adaptability: The fixture can be operated on different testing machines, has strong adaptability, and can play a role in a variety of test scenarios;

[0016] Easy to maintain: This special fixture has a simple structure and is easy to disassemble and clean, which is beneficial to keep the equipment clean and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0019] Figure 3 It is an enlarged structural schematic diagram of a typical force-bearing joint in an embodiment of the utility model;

[0020] Figure 4 This is an enlarged structural schematic diagram of the support fixture of the embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the enlarged structure of the loading fixture according to an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the utility model. Obviously, the described embodiment is a part of the embodiment of the invention, not all of the embodiments. The embodiment of the utility model is described below in conjunction with the drawings.

[0023] like Figures 1 to 5As shown, the strength performance test fixture of the typical stress-bearing joint 3 includes a supporting fixture 2 for supporting the typical stress-bearing joint 3 and a loading fixture 1 for applying an external force to the typical stress-bearing joint 3. The typical stress-bearing joint 3 is detachably connected to the supporting fixture 2, and the typical stress-bearing joint 3 is rotatably connected to the loading fixture 1. The supporting fixture 2 is used to support the typical stress-bearing joint 3 to keep it in an inclined position so as to facilitate a strength performance test on it. The loading fixture 1 is used to apply an external force to the typical stress-bearing joint 3 for the test. By setting the supporting fixture 2, the typical stress-bearing joint 3 can be stably supported to ensure that the typical stress-bearing joint 3 is subjected to a strength performance test. The loading fixture 1 is detachably connected to the typical stress-bearing joint 3, and multiple typical stress-bearing joints 3 can be tested.

[0024] The support fixture 2 includes a support plate 4, and the typical stress-bearing joint 3 is installed on the support plate 4 through a threaded connection, which is convenient for disassembly and assembly, and each typical stress-bearing joint 3 can be tested without damaging the fixture;

[0025] The support plate 4 is provided with a support plate through hole 16, and the typical stress-bearing joint 3 is provided with a through hole 17 aligned with the support plate through hole 16, and the typical stress-bearing joint 3 and the support plate 4 are connected through the support plate through hole 16 and the through hole 17;

[0026] The support fixture 2 also includes a bottom plate 5, and the support plate 4 is arranged at a certain angle to the bottom plate 5. The angle between the support plate 4 and the bottom plate 5 is set to 52° to meet the strength performance test requirements of the typical force-bearing joint 3. The support plate 4 is connected to the bottom plate 5 through the side plate 6. The stability of the support plate 4 is increased by setting the side plate 6;

[0027] A positioning pin 7 is provided on the side wall of the bottom plate 5 away from the support plate 4. The positioning pin 7 is a polygonal positioning pin. The positioning pin 7 is used to limit the position of the support fixture 2. The positioning pin 7 is embedded into the device and the test is performed after limiting its position.

[0028] The loading fixture 1 comprises a connecting block 8, on which at least one groove 9 is provided, and a protrusion 10 matching with the groove 9 is provided on the typical force-bearing joint 3;

[0029] Two grooves 9 are provided on the connecting block 8, and two protrusions 10 matching with the grooves 9 are provided on the typical stress-bearing joint 3. By setting the two grooves 9, the two protrusions 10 on the typical stress-bearing joint 3 can be embedded therein, and a mounting hole 11 is provided on the protrusion 10, and a limiting hole 12 aligned with the mounting hole 11 is provided on the connecting block 8. The protrusion 10 and the connecting block 8 are connected by a connecting pin 13 passing through the mounting hole 11 and the limiting hole 12. The typical stress-bearing joint 3 and the loading fixture 1 are connected by passing the connecting pin 13 through the mounting hole 11 and the limiting hole 12. The loading fixture 1 is rotatably connected to the typical stress-bearing joint 3, and the direction of the force applied by the loading fixture 1 to the typical stress-bearing joint 3 can be adjusted. According to needs, the force applied by the loading fixture 1 to the typical stress-bearing joint 3 is downward;

[0030] A disc-shaped connecting plate 14 is provided on one side of the connecting block 8 away from the groove 9. The disc-shaped connecting plate 14 is provided with a plurality of connecting threaded holes 15. The number of the connecting threaded holes 15 is not less than 8 to ensure the reliability of the connection. The device for applying force is connected to the loading fixture 1.

[0031] This special fixture is designed for a specific workpiece, which can ensure that the test piece maintains a stable position during the test, reduce the error caused by workpiece displacement, and improve the test accuracy;

[0032] The design of this special fixture takes into account the convenience of operation, reduces the difficulty of operation, and the test personnel can easily understand and use it;

[0033] The fixture can be operated on different testing machines, has strong adaptability, and can play a role in a variety of test scenarios;

[0034] The special fixture has a simple structure and is easy to disassemble and clean, which is beneficial to keeping the equipment clean and extending its service life.

[0035] The technical solution of the present invention is described above in conjunction with specific implementation methods, but it should be noted that the above descriptions are only for explaining the solution of the present invention and cannot be interpreted in any way as a specific limitation on the scope of protection of the invention. Based on the explanation here, those skilled in the art can think of other specific implementation methods or equivalent replacements of the present invention without creative work, and they will all fall within the scope of protection of the present invention.

Claims

1. A typical stress-bearing joint strength performance test fixture, characterized in that: It comprises a supporting fixture for supporting a typical stress-bearing joint and a loading fixture for applying external force to the typical stress-bearing joint, wherein the typical stress-bearing joint is detachably connected to the supporting fixture, and the typical stress-bearing joint is rotatably connected to the loading fixture.

2. The typical stress-bearing joint strength performance test fixture according to claim 1 is characterized in that: The support fixture comprises a support plate, and the typical force-bearing joint is mounted on the support plate by threaded connection.

3. The typical stress-bearing joint strength performance test fixture according to claim 2 is characterized in that: The support fixture also includes a bottom plate, the support plate is arranged at a certain angle to the bottom plate, and the support plate is connected to the bottom plate through a side plate.

4. The typical stress-bearing joint strength performance test fixture according to claim 3 is characterized in that: The bottom plate is provided with a positioning pin on a side wall away from the support plate, and the positioning pin is a polygonal positioning pin.

5. The typical stress-bearing joint strength performance test fixture according to claim 1 is characterized in that: The loading fixture comprises a connecting block, the connecting block is provided with at least one groove, and the typical force-bearing joint is provided with a protrusion matched with the groove.

6. The typical stress-bearing joint strength performance test fixture according to claim 5 is characterized in that: The connecting block is provided with two grooves, and the typical force-bearing joint is provided with two protrusions matching with the grooves.

7. The typical stress-bearing joint strength performance test fixture according to claim 6 is characterized in that: The protrusion is provided with a mounting hole, the connecting block is provided with a limiting hole aligned with the mounting hole, and the protrusion and the connecting block are connected by a connecting pin passing through the mounting hole and the limiting hole.

8. The typical stress-bearing joint strength performance test fixture according to claim 7 is characterized in that: A disc-shaped connecting plate is provided on one side of the connecting block away from the groove, and a plurality of connecting threaded holes are provided on the disc-shaped connecting plate.

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