Fixture for fatigue testing machine

Abstract

The utility model relates to the technical field of fatigue testing machines, and discloses a clamp for a fatigue testing machine, which comprises a machine body, the bottom of the machine body is fixedly connected with a fixing plate I, the bottom of the fixing plate I is slidably connected with a connecting plate, a fixing assembly is arranged in the connecting plate, and the fixing assembly is used for fixing the connecting plate. A second fixing plate is fixedly connected to the bottom of the connecting plate, a telescopic rod is fixedly connected to the interior of the second fixing plate, a lifting plate is fixedly connected to the telescopic end of the telescopic rod, and the periphery of the lifting plate is slidably connected to the interior of the second fixing plate. According to the utility model, the telescopic rod can drive the clamping plate to move so as to fix a workpiece, so that the accuracy of testing or processing is ensured, the fixing of the connecting plate can be relieved by pushing the push rod, the clamp can be quickly replaced after the fixing of the connecting plate is relieved, and the operation flexibility can be improved by quickly replacing the clamp.

Description

Technical Field

[0001] The utility model relates to the technical field of fatigue testing machines, in particular to a fixture for a fatigue testing machine. Background Art

[0002] A fatigue testing machine is a device dedicated to testing the durability performance of materials or parts under alternating loading conditions. The fixture for a fatigue testing machine can firmly fix the specimen, ensuring that the specimen will not move or deform during the testing or processing process, and ensuring the accuracy and repeatability of the testing or processing;

[0003] The fixture for a fatigue testing machine has an adjusting device, which is a device used to adjust the clamping force, clamping position or clamping angle of the fixture, so that the fixture can adapt to workpieces of different sizes and shapes. The fixture for a fatigue testing machine includes a fixture clamping component, which is a component used to clamp and fix the workpiece;

[0004] The clamping effect of the existing fixture for a fatigue testing machine is not ideal. Clamping marks will be generated on the surface of the specimen during the clamping process, and cracks will initiate and break from the clamping marks during the test, resulting in invalid test results. Therefore, a fixture for a fatigue testing machine is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a fixture for a fatigue testing machine, aiming to improve the problem that the clamping effect in the prior art is not ideal, resulting in clamping marks on the surface of the specimen during the clamping process.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The fixture for a fatigue testing machine includes a machine body. A first fixing plate is fixedly connected to the bottom of the machine body. A connecting plate is slidably connected to the bottom of the first fixing plate. A fixing component is arranged inside the connecting plate and is used to fix the connecting plate. A second fixing plate is fixedly connected to the bottom of the connecting plate. A telescopic rod is fixedly connected inside the second fixing plate. A lifting plate is fixedly connected to the telescopic end of the telescopic rod. The outer periphery of the lifting plate is slidably connected inside the second fixing plate. A plurality of uniformly distributed rotating plates are rotatably connected to the outer periphery of the lifting plate. A sliding plate is rotatably connected to the bottom of the rotating plate. A clamping plate is fixedly connected to the bottom of the sliding plate. A guide rail is fixedly connected to the bottom of the second fixing plate. The inside of the sliding plate is slidably connected to the outer periphery of the guide rail;

[0008] As a further description of the above technical solution:

[0009] The fixed component includes a push rod, the outer periphery of the push rod is slidably connected inside the connecting plate, a moving plate is fixedly connected to the rear end of the push rod, limiting blocks are fixedly connected to both the left and right sides of the moving plate, a connecting block is slidably connected to the outer periphery of the limiting block, and a fixed rod is fixedly connected to one side of the connecting block;

[0010] As a further description of the above technical solution:

[0011] A chute is provided inside the first fixing plate, and the end of the fixed rod away from the connecting block is slidably connected in the chute inside the first fixing plate;

[0012] As a further description of the above technical solution:

[0013] A baffle is fixedly connected to the front end of the push rod, a spring is fixedly connected to the rear side of the baffle, the rear end of the spring is fixedly connected to the front side of the connecting plate, and the spring is sleeved on the outer periphery of the push rod;

[0014] As a further description of the above technical solution:

[0015] A slider is fixedly connected to the bottom of the connecting block, and the outer periphery of the slider is slidably connected inside the connecting plate;

[0016] As a further description of the above technical solution:

[0017] An anti-slip pad is fixedly connected to one side of the clamping plate;

[0018] As a further description of the above technical solution:

[0019] A plurality of uniformly distributed stoppers are fixedly connected to the bottom of the guide rail;

[0020] As a further description of the above technical solution:

[0021] A plurality of uniformly distributed chutes are provided inside the second fixing plate, and the outer periphery of the lifting plate is rotatably connected in the chutes inside the second fixing plate.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the lifting plate can be driven to lift through the telescopic rod, the rotating plate can be driven to rotate through the lifting of the lifting plate, the sliding plate can be driven to move through the rotation of the rotating plate, the clamping plate can be driven to move through the movement of the sliding plate, and the workpiece can be fixed through the movement of the clamping plate. By fixing the workpiece, it can be ensured that the specimen will not move or deform during the test or processing, and the accuracy and repeatability of the test or processing can be ensured.

[0024] 2. In the present utility model, by pushing the push rod, the moving plate can be driven to move. The moving plate can drive the limit block to move through movement, the limit block can drive the connecting block to move through movement, the connecting block can drive the fixed rod to move through movement, and the fixed rod can release the fixation of the connecting plate through movement. After releasing the fixation of the connecting plate, the fixture can be quickly replaced, and the operation flexibility can be improved by quickly replacing the fixture. Description of the Drawings

[0025] Figure 1 is a three-dimensional schematic diagram of the fixture for a fatigue testing machine proposed by the present utility model;

[0026] Figure 2 is a schematic structural diagram of the second fixing plate of the fixture for a fatigue testing machine proposed by the present utility model;

[0027] Figure 3 is a schematic structural diagram of the first fixing plate of the fixture for a fatigue testing machine proposed by the present utility model;

[0028] Figure 4 is a schematic structural diagram of the connecting plate of the fixture for a fatigue testing machine proposed by the present utility model;

[0029] Figure 5 is a schematic structural diagram of the connecting block of the fixture for a fatigue testing machine proposed by the present utility model.

[0030] Legend Explanation:

[0031] 1. Machine body; 2. First fixing plate; 3. Connecting plate; 4. Second fixing plate; 5. Telescopic rod; 6. Lifting plate; 7. Rotating plate; 8. Slide plate; 9. Clamping plate; 10. Guide rail; 11. Push rod; 12. Moving plate; 13. Limit block; 14. Connecting block; 15. Fixed rod; 16. Baffle; 17. Spring; 18. Slide block; 19. Anti-slip pad; 20. Stop block. Specific Embodiment

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Refer to Figure 1 and Figure 2, An embodiment provided by the present utility model: a fixture for a fatigue testing machine, including a machine body 1. A first fixing plate 2 is fixedly connected to the bottom of the machine body 1. A connecting plate 3 is slidably connected to the bottom of the first fixing plate 2. A second fixing plate 4 is fixedly connected to the bottom of the connecting plate 3. A telescopic rod 5 is fixedly connected inside the second fixing plate 4. A lifting plate 6 is fixedly connected to the telescopic end of the telescopic rod 5. The outer periphery of the lifting plate 6 is slidably connected inside the second fixing plate 4. A plurality of uniformly distributed rotating plates 7 are rotatably connected to the outer periphery of the lifting plate 6. A sliding plate 8 is rotatably connected to the bottom of the rotating plate 7. A clamping plate 9 is fixedly connected to the bottom of the sliding plate 8. A guide rail 10 is fixedly connected to the bottom of the second fixing plate 4. The inside of the sliding plate 8 is slidably connected to the outer periphery of the guide rail 10. The machine body 1 is used to test the durability of materials or parts under alternating loading conditions. The first fixing plate 2 is used to fix the connecting plate 3. The connecting plate 3 is used to fix the second fixing plate 4. The second fixing plate 4 is used to fix the telescopic rod 5. The telescopic rod 5 can drive the lifting plate 6 to lift. The lifting plate 6 can drive the rotating plate 7 to rotate through lifting. The rotating plate 7 can drive the sliding plate 8 to move through rotation. The sliding plate 8 can drive the clamping plate 9 to move through movement. The clamping plate 9 can fix the workpiece through movement. The guide rail 10 is used to fix the movement route of the sliding plate 8.

[0034] Refer to Figure 3 - Figure 5 , A fixing component is arranged inside the connecting plate 3. The fixing component is used to fix the connecting plate 3. The fixing component includes a push rod 11. The outer periphery of the push rod 11 is slidably connected inside the connecting plate 3. A moving plate 12 is fixedly connected to the rear end of the push rod 11. Limiting blocks 13 are fixedly connected to both the left and right sides of the moving plate 12. A connecting block 14 is slidably connected to the outer periphery of the limiting blocks 13. A fixing rod 15 is fixedly connected to one side of the connecting block 14. The push rod 11 is used to drive the moving plate 12 to move. The moving plate 12 can drive the limiting blocks 13 to move through movement. The limiting blocks 13 can drive the connecting block 14 to move through movement. The connecting block 14 can drive the fixing rod 15 to move through movement. The fixing rod 15 can release the fixation of the connecting plate 3 through movement.

[0035] Refer to Figure 2 、 Figure 4 and Figure 5, a chute is provided inside the first fixing plate 2. The end of the fixing rod 15 away from the connecting block 14 is slidably connected to the chute inside the first fixing plate 2. The front end of the push rod 11 is fixedly connected with a baffle 16. The rear side of the baffle 16 is fixedly connected with a spring 17. The rear end of the spring 17 is fixedly connected to the front side of the connecting plate 3. The spring 17 is sleeved on the outer periphery of the push rod 11. The bottom of the connecting block 14 is fixedly connected with a slider 18. The outer periphery of the slider 18 is slidably connected inside the connecting plate 3. One side of the clamping plate 9 is fixedly connected with an anti-slip pad 19. The bottom of the guide rail 10 is fixedly connected with a plurality of uniformly distributed stoppers 20. A plurality of uniformly distributed chutes are provided inside the second fixing plate 4. The outer periphery of the lifting plate 6 is rotatably connected to the chutes inside the second fixing plate 4. The baffle 16 is used to fix the spring 17. The spring 17 can drive the push rod 11 to reset through its elastic force. The slider 18 is used to fix the moving route of the connecting block 14. The anti-slip pad 19 is used to strengthen the fixation of the clamping plate 9 on the workpiece. The stopper 20 plays a role in preventing the sliding plate 8 from falling off the outer periphery of the guide rail 10.

[0036] Working principle: The telescopic rod 5 can drive the lifting plate 6 to move up and down. The lifting plate 6 can drive the rotating plate 7 to rotate through lifting. The rotating plate 7 can drive the sliding plate 8 to move through rotation. The sliding plate 8 can drive the clamping plate 9 to move through movement. The clamping plate 9 can fix the workpiece through movement. By fixing the workpiece, it can ensure that the specimen will not move or deform during testing or processing, ensuring the accuracy and repeatability of testing or processing. By pushing the push rod 11, the moving plate 12 can be driven to move. The moving plate 12 can drive the limiting block 13 to move through movement. The limiting block 13 can drive the connecting block 14 to move through movement. The connecting block 14 can drive the fixing rod 15 to move through movement. The fixing rod 15 can release the fixation of the connecting plate 3 through movement. After releasing the fixation of the connecting plate 3, the fixture can be quickly disassembled. After releasing the push rod 11, the baffle 16 can be driven to reset by the elastic force of the spring 17. The baffle 16 can drive the push rod 11 to reset through reset. The push rod 11 can drive the moving plate 12 to reset through reset. The moving plate 12 can drive the limiting block 13 to move through movement. The limiting block 13 can drive the connecting block 14 to reset through movement. The connecting block 14 can drive the fixing rod 15 to reset through reset. The fixing rod 15 can fix the connecting plate 3 through reset, thereby fixing the fixture. By quickly installing and disassembling the fixture, the operation flexibility can be improved.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fixture for a fatigue testing machine, comprising a body (1), characterized in that: The bottom of the machine body (1) is fixedly connected with a fixing plate 1 (2), the bottom of the fixing plate 1 (2) is slidably connected with a connecting plate (3), a fixing assembly is arranged inside the connecting plate (3), the fixing assembly is used to fix the connecting plate (3), the bottom of the connecting plate (3) is fixedly connected with a fixing plate 2 (4), the fixing plate 2 (4) is fixedly connected with a telescopic rod (5), the telescopic end of the telescopic rod (5) is fixedly connected with a lifting plate (6), the outer periphery of the lifting plate (6) is slidably connected to the inside of the fixing plate 2 (4), the outer periphery of the lifting plate (6) is rotatably connected to a plurality of evenly distributed rotating plates (7), the bottom of the rotating plate (7) is rotatably connected with a slide plate (8), the bottom of the slide plate (8) is fixedly connected with a clamping plate (9), the bottom of the fixing plate 2 (4) is fixedly connected with a guide rail (10), the inside of the slide plate (8) is slidably connected to the outer periphery of the guide rail (10).

2. The fatigue testing machine fixture according to claim 1, characterized in that: The fixing assembly comprises a push rod (11), the outer periphery of the push rod (11) is slidably connected to the inside of the connecting plate (3), the rear end of the push rod (11) is fixedly connected to a moving plate (12), both left and right sides of the moving plate (12) are fixedly connected to limiting blocks (13), the outer periphery of the limiting block (13) is slidably connected to a connecting block (14), and one side of the connecting block (14) is fixedly connected to a fixing rod (15).

3. The fatigue testing machine fixture according to claim 2, characterized in that: A sliding groove is provided inside the fixing plate 1 (2), and one end of the fixing rod (15) away from the connecting block (14) is slidably connected in the sliding groove inside the fixing plate 1 (2).

4. The fatigue testing machine fixture according to claim 2, characterized in that: The front end of the push rod (11) is fixedly connected to a baffle (16), the rear side of the baffle (16) is fixedly connected to a spring (17), the rear end of the spring (17) is fixedly connected to the front side of the connecting plate (3), and the spring (17) is sleeved on the outer periphery of the push rod (11).

5. The fatigue testing machine fixture according to claim 2, characterized in that: A slider (18) is fixedly connected to the bottom of the connection block (14), and the outer periphery of the slider (18) is slidably connected to the inside of the connection plate (3).

6. The fatigue testing machine fixture according to claim 1, characterized in that: An anti-slip pad (19) is fixedly connected to one side of the clamping plate (9).

7. The fixture for a fatigue testing machine according to claim 1, characterized in that: A plurality of evenly distributed stoppers (20) are fixedly connected to the bottom of the guide rail (10).

8. The fixture for a fatigue testing machine according to claim 1, characterized in that: The second fixed plate (4) is provided with a plurality of evenly distributed sliding grooves, and the outer periphery of the lifting plate (6) is rotatably connected to the internal sliding grooves of the second fixed plate (4).

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