Fatigue strength equipment for testing clamp spring three-jaw product

Abstract

The utility model relates to the technical field of fatigue strength testing, and discloses a fatigue strength device for testing a clamp spring three-jaw product, which comprises a box body, a support column fixedly connected to the top of the box body, a frame fixedly connected to the top of the support column, a first limit groove arranged inside the frame, a hydraulic cylinder fixedly connected inside the frame, and a second limit groove arranged inside the hydraulic cylinder. The output end of the hydraulic cylinder is fixedly connected with a connecting block, a first sliding block is arranged in the frame, a limiting assembly is arranged on the outer wall of the first sliding block, a second limiting groove is formed in the first sliding block, and the outer wall of the connecting block is slidably connected into the second limiting groove. According to the clamp spring three-jaw fixing frame, through cooperation of the frame, the hydraulic cylinder, the first sliding block, the connecting block and the clamping plate, the effect of rapidly installing a clamp spring three-jaw product is achieved, and the problem that the clamp spring three-jaw product needs to be placed on the fixing frame through a tool, and the installation and disassembly processes are inconvenient is solved; and the testing efficiency of the equipment for testing the fatigue strength of the clamp spring three-jaw product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fatigue strength testing, in particular to a fatigue strength device for testing a three-claw snap spring product. Background Art

[0002] The three-jaw circlip is a mechanical part that is usually used to clamp and fix objects. It is commonly found in machining, assembly and clamping devices. This product usually consists of three elastic circlip arms, each with a clamping point at the end, forming a triangle. When external force is applied to the center point, the three jaws will expand outward and clamp the object at the center point through the elasticity of the circlip arms. In order to ensure that the product can withstand long-term continuous stress in actual use, thereby improving the quality and reliability of the product and reducing accidental damage or failures caused by fatigue damage, it is necessary to use fatigue strength testing equipment for the three-jaw circlip product.

[0003] During the use of traditional equipment for testing the fatigue strength of three-jaw circlip products, when the three-jaw circlip product needs to be tested or installed, the three-jaw circlip needs to be placed on a fixed frame using tools and then tightened with bolts. The installation and disassembly process is inconvenient, which affects the testing efficiency of the equipment for testing the fatigue strength of three-jaw circlip products. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a fatigue strength test device for three-claw retaining ring products, aiming to improve the problem that the three-claw retaining ring needs to be placed on a fixed frame by tools and then tightened and fixed by bolts, which makes the installation and disassembly process inconvenient.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fatigue strength equipment for testing the three-claw product of the retaining spring, comprising a box body, a support column fixedly connected to the top of the box body, a frame fixedly connected to the top of the support column, a limiting groove 1 is arranged inside the frame, a hydraulic cylinder is fixedly connected inside the frame, a connecting block is fixedly connected to the output end of the hydraulic cylinder, a slider 1 is arranged inside the frame, a limiting assembly is arranged on the outer wall of the slider 1, a limiting groove 2 is arranged inside the slider 1, the outer wall of the connecting block is slidably connected to the inside of the limiting groove 2, a clamping plate is fixedly connected to one side of the slider 1, and a retaining spring three-claw body is arranged on one side of the clamping plate.

[0006] As a further description of the above technical solution:

[0007] The limiting assembly comprises a limiting block, one side of which is fixedly connected to an outer wall of a sliding block, and the outer wall of the limiting block is slidably connected to an interior of a limiting groove.

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

[0009] A limiting column is fixedly connected inside the box body, and a second sliding block is fixedly connected inside the limiting column.

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

[0011] A bracket is fixedly connected inside the box, and a motor is fixedly connected inside the bracket.

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

[0013] The output end of the motor is fixedly connected to one end of a connecting rod, and the other end of the connecting rod is rotatably connected to a connecting rod.

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

[0015] A sliding groove is provided inside the second connecting rod.

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

[0017] The outer wall of the second connecting rod is slidably connected to the inside of the limiting column, and the top of the second connecting rod is fixedly connected to a double-sided conical column.

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

[0019] The second outer wall of the sliding block is slidably connected inside the sliding groove.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, firstly, the effect of quickly installing the three-claw retaining spring product is achieved through the cooperation between the frame, the hydraulic cylinder, the slider, the connecting block and the clamping plate, which solves the problem that the three-claw retaining spring needs to be placed on the fixing frame by tools and then fixed by bolts, and the installation and disassembly process is inconvenient, thereby improving the test efficiency of the fatigue strength equipment for testing the three-claw retaining spring product.

[0022] 2. In the utility model, through the cooperation between connecting rod 1, connecting rod 2, limiting column, double-sided conical column and slider 2, the effect of efficient testing through a simple structure is achieved, which solves the problems of complex structure, easy failure and inconvenient maintenance of traditional fatigue strength testing equipment, and improves the practicality of fatigue strength testing equipment for three-jaw retaining ring products. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a device for testing fatigue strength of a three-jaw retainer product proposed by the utility model;

[0024] Figure 2This is a schematic diagram of the internal structure of a frame of a device for testing the fatigue strength of a three-jaw retainer product proposed by the utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of a box body of a device for testing the fatigue strength of a three-jaw retainer product proposed by the utility model;

[0026] Figure 4 The utility model provides a schematic diagram of the limit column structure of a device for testing the fatigue strength of a three-jaw retaining ring product.

[0027] Legend:

[0028] 1. Box body; 2. Support column; 3. Frame; 4. Hydraulic cylinder; 5. Limiting groove 1; 6. Slider 1; 7. Limiting groove 2; 8. Connecting block; 9. Clamping plate; 10. Three-claw body of retaining spring; 11. Bracket; 12. Motor; 13. Connecting rod 1; 14. Connecting rod 2; 15. Limiting column; 16. Double-sided conical column; 17. Sliding groove; 18. Slider 2; 19. Limiting block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1 and Figure 2 , the utility model provides an embodiment: a fatigue strength test device for a three-claw product of a circlip, comprising a box body 1, a support column 2 is fixedly connected to the top of the box body 1, a frame 3 is fixedly connected to the top of the support column 2, a limiting groove 5 is provided inside the frame 3, a hydraulic cylinder 4 is fixedly connected inside the frame 3, a connecting block 8 is fixedly connected to the output end of the hydraulic cylinder 4, a slider 6 is arranged inside the frame 3, a limiting assembly is arranged on the outer wall of the slider 6, a limiting groove 2 7 is arranged inside the slider 6, the outer wall of the connecting block 8 is slidably connected inside the limiting groove 2 7, a clamping plate 9 is fixedly connected to one side of the slider 6, a circlip three-claw body 10 is arranged on one side of the clamping plate 9, and the limiting assembly comprises a limiting block 19, one side of the limiting block 19 is fixedly connected to the outer wall of the slider 6, and the outer wall of the limiting block 19 is slidably connected inside the limiting groove 5;

[0031] Specifically, during the installation operation of the three-claw body 10 of the circlip, it is first placed between the clamping plates 9, which is the first step of the entire operation. Next, the output end of the hydraulic cylinder 4 begins to retract, and this action drives the connecting block 8 to move. On the slider 1 6, the connecting block 8 is connected to the limit groove 2 7, and this design ensures the restriction of the connecting block 8 during the movement. When the connecting block 8 moves toward the hydraulic cylinder 4, it drives the slider 1 6 to close. In this process, the outer wall of the slider 1 6 is connected to the limit block 19, and this limit block 19 is located on the limit groove 1 5 in the frame 3. This design ensures the position accuracy of the slider 1 6 during the closing process. Once the slider 1 6 is fully closed, it drives the clamping plate 9 to clamp and fix the three-claw body 10 of the circlip. This step ensures the stability and safety of the three-claw body 10 of the circlip during operation. The entire operation process relies on the coordinated work of various components to ensure that the three-claw body 10 of the circlip can be accurately clamped and fixed.

[0032] Reference Figure 3 and Figure 4 The box body 1 is fixedly connected to a limit column 15, and a slider 18 is fixedly connected to the limit column 15. The box body 1 is fixedly connected to a bracket 11, and a motor 12 is fixedly connected to the bracket 11. The output end of the motor 12 is fixedly connected to one end of a connecting rod 13, and the other end of the connecting rod 13 is rotatably connected to a connecting rod 2 14. A sliding groove 17 is provided inside the connecting rod 14, and the outer wall of the connecting rod 14 is slidably connected to the inside of the limit column 15. A double-sided conical column 16 is fixedly connected to the top of the connecting rod 14, and the outer wall of the slider 2 18 is slidably connected to the inside of the sliding groove 17;

[0033] Specifically, driven by the motor 12, the connecting rod 13 realizes rotational motion, and then transmits force to the connecting rod 2 14. Under the action of force, the connecting rod 2 14 produces up and down reciprocating motion. This mode of motion is reasonably controlled by designing a limit column 15 to avoid damage to the equipment caused by excessive motion. In order to better control the range of motion of the connecting rod 2 14, we designed a slide 17. The slide 17 cooperates with the limit column 15 so that the connecting rod 2 14 can be well restricted during the movement. Inside the limit column 15, we also designed a slider 2 18, which is in close contact with the outer wall of the connecting rod 2 14 to ensure stability during the movement. When the connecting rod 2 14 moves to the specified position, the double-sided conical column 16 is driven to extend into the inside of the three-claw body 10 of the retaining spring. Driven by the double-sided conical column 16, the three-claw body 10 of the retaining spring is unfolded to prepare for subsequent operations. This process is achieved by the up and down reciprocating motion of the connecting rod 2 14. At the same time, the connecting rod 2 14 is also responsible for driving the double-sided conical column 16 to separate from the three-claw body 10 of the retaining spring. When the connecting rod 2 14 moves downward, the double-sided conical column 16 and the three-claw body 10 of the retaining spring gradually separate, ensuring that the three-claw can be closed smoothly. This process is also achieved through the up and down reciprocating motion of the connecting rod 2 14. In the whole process, the up and down reciprocating motion of the connecting rod 2 14 plays a key role. It not only drives the extension and contraction of the double-sided conical column 16 and the three-claw body of the retaining spring, but also realizes the expansion and closing of the three-claw. This design enables the equipment to effectively test the three-claw body 10 of the retaining spring to ensure its stable and reliable performance.

[0034] Working principle: When the fatigue strength test equipment for the three-claw circlip product is used, the three-claw circlip body 10 is first placed between the clamping plates 9, and then the output end of the hydraulic cylinder 4 is retracted to drive the connecting block 8 to move. The connecting block 8 is connected and limited in the limiting groove 27 on the slider 16. Therefore, when the connecting block 8 moves toward the direction of the hydraulic cylinder 4, it drives the slider 16 to close. The slider 16 is limited in the limiting groove 15 in the frame 3 through the limiting block 19 on the outer wall. Then, when the slider 16 is closed, it drives the clamping plate 9 to clamp and fix the three-claw circlip body 10, and then the motor 12 outputs The output end drives connecting rod 13 to rotate, connecting rod 13 drives connecting rod 2 14 to reciprocate up and down, connecting rod 2 14 is limited by limiting column 15, connecting rod 2 14 is limited by sliding groove 17 on the outer wall of slider 2 18 in limiting column 15, and then connecting rod 2 14 drives double-sided conical column 16 to extend into the three-claw body 10 of the retaining spring to expand the three claws, and when connecting rod 2 14 moves downward, it drives the double-sided conical column 16 to separate from the three-claw body 10 of the retaining spring, and then the three claws on the three-claw body 10 of the retaining spring are closed, and the three-claw body 10 of the retaining spring is tested by reciprocating up and down.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for testing fatigue strength of a three-jaw retainer product, comprising a housing (1), characterized in that: The top of the box body (1) is fixedly connected to a support column (2), the top of the support column (2) is fixedly connected to a frame (3), a limiting groove (5) is provided inside the frame (3), a hydraulic cylinder (4) is fixedly connected inside the frame (3), an output end of the hydraulic cylinder (4) is fixedly connected to a connecting block (8), a slider (6) is provided inside the frame (3), a limiting assembly is provided on the outer wall of the slider (6), a limiting groove (7) is provided inside the slider (6), the outer wall of the connecting block (8) is slidably connected inside the limiting groove (7), a clamping plate (9) is fixedly connected to one side of the slider (6), and a three-claw body (10) of a retaining spring is provided on one side of the clamping plate (9).

2. The fatigue strength test equipment for three-jaw circlip products according to claim 1, characterized in that: The limiting assembly comprises a limiting block (19), one side of which is fixedly connected to the outer wall of the slider (6), and the outer wall of the limiting block (19) is slidably connected to the interior of the limiting groove (5).

3. The fatigue strength test equipment for three-claw circlip products according to claim 1, characterized in that: A limiting column (15) is fixedly connected inside the box body (1), and a second sliding block (18) is fixedly connected inside the limiting column (15).

4. The fatigue strength test equipment for three-claw circlip products according to claim 1, characterized in that: A bracket (11) is fixedly connected inside the box (1), and a motor (12) is fixedly connected inside the bracket (11).

5. The fatigue strength test equipment for three-jaw circlip products according to claim 4, characterized in that: The output end of the motor (12) is fixedly connected to one end of a connecting rod (13), and the other end of the connecting rod (13) is rotatably connected to a connecting rod (14).

6. The fatigue strength test equipment for three-jaw circlip products according to claim 5, characterized in that: A sliding groove (17) is provided inside the second connecting rod (14).

7. The fatigue strength test equipment for three-jaw circlip products according to claim 5, characterized in that: The outer wall of the second connecting rod (14) is slidably connected to the inside of the limiting column (15), and the top of the second connecting rod (14) is fixedly connected to a double-sided conical column (16).

8. The fatigue strength test equipment for three-jaw circlip products according to claim 3, characterized in that: The outer wall of the second sliding block (18) is slidably connected to the inside of the sliding groove (17).

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