Snap spring fatigue testing device

Abstract

The utility model relates to the technical field of clamp spring fatigue testing, in particular to a clamp spring fatigue testing device which comprises a clamp, a clamping groove and a testing mechanism are arranged on the side wall of the clamp, the testing mechanism comprises a main body assembly, a power assembly and a testing assembly, and the main body assembly comprises a main body bearing block fixedly connected to the inner wall of the clamping groove. A first groove and a second groove are formed in the side wall of the main body bearing block, and a test block is rotationally connected between the inner walls of the two sides of the second groove through a bearing. Through the test mechanism, convenient test operation is realized, test efficiency and test accuracy are improved, through cooperation of the power assembly and the test assembly, test frequency and amplitude can be adjusted, applicability and practicality of the device are improved, and the device body is convenient to disassemble and convenient to use. And subsequent maintenance and overhaul operation are facilitated.

Description

Technical Field

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

[0002] The sun visor retaining spring is an important component of automotive interior accessories. It is mainly used to fix and support the sun visor to ensure its stability and reliability in different positions. The elasticity of the retaining spring can fix the sun visor at a designated position in the car interior to prevent it from shaking or falling off at will. The design of the sun visor retaining spring allows the driver or passenger to adjust the angle and position of the sun visor as needed to block sunlight at different angles and improve driving and riding comfort. The sun visor retaining spring is generally made of high-strength, high-elasticity and corrosion-resistant metal material. Metal fatigue will occur after long-term use. Therefore, in order to ensure the quality of the retaining spring, the fatigue life and durability of the sun visor retaining spring to be produced need to be evaluated before production and processing. Therefore, a retaining spring fatigue testing device is required for use in conjunction.

[0003] The existing spring fatigue testing device is not convenient to use, and it is not easy to change the test frequency and test intensity, which limits the practicality of the device and makes it unable to be applied to more usage scenarios. At the same time, the existing testing device is not easy to disassemble and assemble, which makes it inconvenient for subsequent maintenance and repair. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a spring fatigue testing device, which can effectively solve the problems of the prior art that the testing operation is not convenient, the applicability is not strong, and the disassembly and assembly are not convenient.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The utility model provides a clamp spring fatigue testing device, comprising a clamp, wherein a clamping groove is provided on a side wall of the clamp;

[0007] The testing mechanism includes a main body component, a power component and a testing component. The main body component includes a main body bearing block fixedly connected to the inner wall of the slot. The side wall of the main body bearing block is provided with a first groove and a second groove. The testing block is rotatably connected between the inner walls on both sides of the second groove through a bearing.

[0008] According to the above-mentioned spring fatigue testing device, the power assembly includes a triangular power block arranged on the side of the clamp, the side wall of the triangular power block is provided with a cylindrical groove, a rotating shaft is provided in the cylindrical groove, the rotating shaft passes through and is rotatably connected to the side walls of the main body supporting block, a threaded through hole is provided between the side wall of the triangular power block and the cylindrical groove, and a fastening bolt is threadedly connected in the threaded through hole.

[0009] According to the above-mentioned retaining spring fatigue testing device, the test assembly includes a cylindrical cavity arranged in the test block, the rotating shaft passes through and is rotatably connected to the side walls of the test block, the rotating shaft is circumferentially fixedly connected to two fixed blocks, the inner wall of the cylindrical cavity is fixedly connected to a force-bearing column, and the upper surface of the test block is provided with a positioning through hole.

[0010] According to the above-mentioned circlip fatigue testing device, the No. 1 groove and the No. 2 groove have an overlapping portion, and the depth of the No. 2 groove is greater than the depth of the No. 1 groove.

[0011] According to the above-mentioned retaining spring fatigue testing device, the side wall of the fixture is provided with two fixing holes, the triangles of the triangular power block are all provided with fixing holes, and the fastening bolt is fixedly connected with a knob at one end away from the rotating shaft.

[0012] According to the above-mentioned device for testing fatigue of retaining springs, the rotating shaft is located in the cylindrical cavity, the two fixing blocks cooperate with the force-bearing columns, and the rotating shaft is concentrically arranged with the cylindrical cavity.

[0013] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] The utility model realizes convenient test operation through the test mechanism provided, which is beneficial to improving test efficiency and test accuracy. At the same time, through the power assembly provided in conjunction with the test assembly, the test frequency and amplitude can be adjusted, so that the device can be suitable for retaining springs of different sizes, which is beneficial to improving the applicability and practicality of the device. In addition, the device body is easy to disassemble, which is beneficial to subsequent maintenance and repair operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure analysis of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0019] Figure 4 It is a schematic diagram of the side structural analysis of the test block of the utility model.

[0020] Figure numerals: 1. fixture; 2. slot; 3. main body bearing block; 4. groove No. 1; 5. groove No. 2; 6. test block; 7. triangular power block; 8. cylindrical groove; 9. rotating shaft; 10. fastening bolt; 11. cylindrical cavity; 12. fixing block; 13. force column; 14. positioning through hole. DETAILED DESCRIPTION

[0021] 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 below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0022] The utility model is further described below in conjunction with embodiments.

[0023] Example: Refer to Figures 1 to 4 A spring fatigue test device includes a fixture 1, a side wall of the fixture 1 is provided with a slot 2, a test mechanism, and the test mechanism includes a main component, a power component and a test component. The main component includes a main body bearing block 3 fixedly connected to the inner wall of the slot 2, and the side wall of the main body bearing block 3 is provided with a first groove 4 and a second groove 5. The inner walls of the second groove 5 are rotatably connected with a test block 6 through a bearing. The power component includes a triangular power block 7 arranged on the side of the fixture 1, and the side wall of the triangular power block 7 is provided with a cylindrical groove 8, and the cylindrical groove 8 is provided with a The rotating shaft 9 penetrates and is rotatably connected to the side walls of the main bearing block 3. A threaded through hole is provided between the side wall of the triangular power block 7 and the cylindrical groove 8. A fastening bolt 10 is threadedly connected in the threaded through hole. The No. 1 groove 4 and the No. 2 groove 5 have an overlapping portion. The depth of the No. 2 groove 5 is greater than the depth of the No. 1 groove 4. The side wall of the fixture 1 is provided with two fixing holes. The triangles of the triangular power block 7 are all provided with fixing holes, which is convenient for fixing the device. The fastening bolt 10 is fixedly connected with a knob at one end away from the rotating shaft 9, which is convenient for the staff to operate;

[0024] The test assembly includes a cylindrical cavity 11 arranged in the test block 6, a rotating shaft 9 passes through and is rotatably connected to the side walls of the test block 6, two fixed blocks 12 are circumferentially fixedly connected to the rotating shaft 9, a force-bearing column 13 is fixedly connected to the inner wall of the cylindrical cavity 11, a positioning through hole 14 is provided on the upper surface of the test block 6, the rotating shaft 9 is located in the cylindrical cavity 11, the two fixed blocks 12 cooperate with the force-bearing column 13, and the rotating shaft 9 and the cylindrical cavity 11 are concentrically arranged.

[0025] The working principle of the utility model is as follows: during use, when it is necessary to perform fatigue test on the sun visor retaining spring, the sun visor retaining spring to be tested is inserted into the positioning through hole 14 and fixed. After completion, a power source is connected to the center of the triangular power block 7, so that the triangular power block 7 undergoes periodic reciprocating rotation, and then with the cooperation of the fastening bolts 10, the rotating shaft 9 is driven to perform periodic reciprocating rotation. When the rotating shaft 9 rotates, it will drive the two fixed blocks 12 to perform periodic reciprocating revolution. When the two fixed blocks 12 undergo periodic reciprocating revolution, one of the fixed blocks 12 gradually approaches and contacts the force-bearing column 13, and then drives the test block 6 to swing through the force-bearing column 13. During the periodic reciprocating revolution, the test block 6 is driven to rotate. Under the reciprocating revolution, after the fixed block 12 driving the load-bearing column 13 rotates at a certain angle, it will rotate in the opposite direction. At this time, the other fixed block 12 will revolve in the opposite direction and will gradually approach the load-bearing column 13 until it drives the load-bearing column 13 to rotate in the opposite direction. This process is accompanied by the periodic reciprocating rotation of the rotating shaft 9, and is also carried out periodically reciprocatingly, so that the test block 6 can realize reciprocating swing, so that the sun visor retaining spring in the positioning through hole 14 can be reciprocated and bent to realize fatigue testing. The test amplitude and test frequency can be adjusted by controlling the reciprocating rotation angle and rotation speed of the triangular power block 7. It is convenient to operate and has stronger practicality.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A circlip fatigue testing device, characterized in that: include: A clamp (1), wherein a side wall of the clamp (1) is provided with a clamping groove (2); A testing mechanism, the testing mechanism comprising a main body component, a power component and a testing component, the main body component comprising a main body bearing block (3) fixedly connected to the inner wall of a slot (2), the side wall of the main body bearing block (3) being provided with a first groove (4) and a second groove (5), and a testing block (6) being rotatably connected between the inner walls on both sides of the second groove (5) via a bearing.

2. A circlip fatigue testing device according to claim 1, characterized in that: The power assembly comprises a triangular power block (7) arranged on the side of the fixture (1), the side wall of the triangular power block (7) is provided with a cylindrical groove (8), a rotating shaft (9) is provided in the cylindrical groove (8), the rotating shaft (9) passes through and is rotatably connected to the side walls of the main body bearing block (3), a threaded through hole is provided between the side wall of the triangular power block (7) and the cylindrical groove (8), and a fastening bolt (10) is threadedly connected in the threaded through hole.

3. A circlip fatigue testing device according to claim 2, characterized in that: The test assembly comprises a cylindrical cavity (11) arranged in a test block (6); the rotating shaft (9) penetrates and is rotatably connected to the side walls of the test block (6); two fixed blocks (12) are circumferentially fixedly connected to the rotating shaft (9); a force-bearing column (13) is fixedly connected to the inner wall of the cylindrical cavity (11); and a positioning through hole (14) is provided on the upper surface of the test block (6).

4. A circlip fatigue testing device according to claim 1, characterized in that: The first groove (4) and the second groove (5) have an overlapping portion, and the depth of the second groove (5) is greater than the depth of the first groove (4).

5. The circlip fatigue testing device according to claim 2, characterized in that: The side wall of the clamp (1) is provided with two fixing holes, the triangles of the triangular power block (7) are all provided with fixing holes, and the end of the fastening bolt (10) away from the rotating shaft (9) is fixedly connected with a knob.

6. A circlip fatigue testing device according to claim 3, characterized in that: The rotating shaft (9) is located in the cylindrical cavity (11), the two fixing blocks (12) cooperate with the force-bearing column (13), and the rotating shaft (9) and the cylindrical cavity (11) are arranged concentrically.

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