Shock absorber assembly fatigue test tool

Abstract

The utility model relates to a shock absorber assembly fatigue test tool, which belongs to the technical field of shock absorber fatigue test devices, and comprises an upper limiting assembly and a lower limiting assembly, and the upper limiting assembly comprises a plurality of detachable upper limiting discs; the lower limiting assembly comprises a supporting bottom plate, a U-shaped supporting baffle and a fixing clamping plate. The U-shaped supporting baffles are fixedly connected to the front side and the rear side of the supporting bottom plate, and the fixed clamping plates are detachably connected to the upper portions of the U-shaped supporting baffles on the two sides. Two semicircular clamping sleeves are clamped between the two opposite fixed clamping plates; the upper limiting disc is used for limiting the upper portion of the shock absorber assembly, and then the semicircular clamping sleeve is used for limiting the lower portion of the shock absorber assembly. When shock absorber assemblies with different specifications are tested, only the upper limiting disc and the semicircular clamping sleeve with corresponding sizes need to be replaced. According to the utility model, the versatility is strong, and the test cost is reduced; multiple sets of shock absorber assemblies can be tested at the same time, the test period is shortened, and the test efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a fatigue testing fixture for a vibration damper assembly, belonging to the technical field of vibration damper fatigue testing devices. Background Technology

[0002] Coil springs are an important component of automotive shock absorbers. The coil springs for each car model are different. During customer testing, the coil springs need to be assembled into shock absorbers for assembly fatigue testing. Existing shock absorber assembly testing fixtures have poor versatility. Different special fixtures need to be processed when testing shock absorber assemblies of different specifications, resulting in a lot of labor and processing costs. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a fatigue testing fixture for shock absorber assemblies, which can test shock absorber assemblies of different specifications, has strong versatility, and reduces testing costs; and can test multiple sets of shock absorber assemblies at the same time, shortening the testing cycle and improving testing efficiency.

[0004] The fatigue testing fixture for the shock absorber assembly described in this utility model includes an upper limit assembly and a lower limit assembly. The top of the upper limit assembly can be fixedly connected to the testing machine. The upper limit assembly includes multiple detachable upper limit discs, which can cooperate with the upper tray of the shock absorber assembly to limit the upper part of the shock absorber assembly.

[0005] The lower limit assembly includes a support base plate, a U-shaped support plate, and a fixing clamp plate. The support base plate is used to support the bottom of the shock absorber assembly. The U-shaped support plate is fixedly connected to the front and rear sides of the support base plate. The fixing clamp plate is detachably connected to the top of the U-shaped support plates on both sides. There are multiple fixing clamp plates. Two semi-circular ring clamping sleeves are clamped between two opposing fixing clamp plates to limit the lower part of the shock absorber assembly.

[0006] The technical solution of this utility model is to provide a fatigue testing fixture for a vibration damper assembly. The fixture is connected to the testing machine through the top of the upper limit assembly. The upper limit disc limits the upper part of the vibration damper assembly, and the lower part of the vibration damper assembly is limited by the semi-circular ring clamping sleeve. The vibration damper assembly is subjected to fatigue testing. When testing vibration damper assemblies of different specifications, it is only necessary to replace the upper limit disc and the semi-circular ring clamping sleeve of the corresponding size.

[0007] Preferably, the upper limit assembly further includes a limit disc mounting plate, wherein the upper limit disc is detachably connected to the limit disc mounting plate by bolts.

[0008] Furthermore, the upper limit disk is provided with a shock absorber clearance hole at its center, and multiple insertion holes are evenly distributed around the shock absorber clearance hole. The insertion holes can be engaged with the bolts on the top surface of the shock absorber assembly to achieve the upper limit of the shock absorber assembly.

[0009] Preferably, the supporting base plate has U-shaped holes on its left and right sides, which are used for fixed connection with the base of the testing machine.

[0010] Preferably, the fixing clamp is provided with a positioning step to ensure installation accuracy; the fixing clamp is also provided with an arc notch for clamping the semi-circular ring clamping sleeve.

[0011] Preferably, the semi-circular ring clamping sleeve is provided with a stop plate to prevent the semi-circular ring clamping sleeve from falling.

[0012] The advantages of this utility model compared with the prior art are:

[0013] The fatigue testing fixture for the vibration damper assembly described in this utility model limits the upper part of the vibration damper assembly with an upper limit disc and the lower part with a semi-circular ring clamping sleeve to perform fatigue testing on the vibration damper assembly. When testing vibration damper assemblies of different specifications, only the upper limit disc and semi-circular ring clamping sleeve of the corresponding size need to be replaced. This utility model can test vibration damper assemblies of different specifications, has strong versatility, and reduces testing costs. Moreover, it can test multiple sets of vibration damper assemblies simultaneously, shortening the testing cycle and improving testing efficiency. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram showing the state of this utility model in use;

[0015] Fig. 2 This is a schematic diagram of the upper limit component;

[0016] Fig. 3 This is a structural schematic diagram of the lower limit component;

[0017] Fig. 4 It is a 3D diagram of the upper limit disk;

[0018] Fig. 5 It is a 3D diagram of the fixed clamp;

[0019] Fig. 6 It is a three-dimensional view of the semi-circular ring clamping sleeve.

[0020] In the diagram: 1. Upper limit assembly; 11. Upper limit disc; 111. Insertion hole; 112. Vibration damper clearance hole; 12. Limit disc mounting plate; 2. Vibration damper assembly; 3. Lower limit assembly; 31. Support base plate; 311. U-shaped hole; 32. U-shaped support plate; 33. Fixing clamp; 331. Positioning step; 332. Arc notch; 34. Semi-circular ring clamping sleeve; 341. Stop plate. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments.

[0022] However, the description of this utility model is only a structural or even functional description of the embodiments, and the scope of the present utility model is not limited by the embodiments described herein.

[0023] For example, multiple embodiments may have various modifications and forms, and it should be understood that the scope of this utility model includes equivalents that can realize the technical concept.

[0024] like Figs. 1-6 As shown, this embodiment is achieved through the following technical solution: it includes an upper limit component 1 and a lower limit component 3; the top of the upper limit component 1 can be fixedly connected to the testing machine, and the upper limit component 1 includes three detachable upper limit disks 11, which can cooperate with the upper tray of the shock absorber assembly to limit the upper part of the shock absorber assembly;

[0025] The lower limit assembly 3 includes a support base plate 31, a U-shaped support plate 32, and a fixing clamp 33. The support base plate 31 is used to support the bottom of the shock absorber assembly. The U-shaped support plate 32 is fixedly connected to the front and rear sides of the support base plate 31. The fixing clamp 33 is detachably connected to the top of the U-shaped support plates 32 on both sides. There are six fixing clamps 33. Two semi-circular ring clamping sleeves 34 are clamped between two opposing fixing clamps 33. The two semi-circular ring clamping sleeves 34 form a complete hole, and the lower part of the shock absorber assembly is limited by the semi-circular ring clamping sleeves 34.

[0026] In this embodiment, the upper limit assembly 1 further includes a limiting disc mounting plate 12, and the upper limit disc 11 is detachably connected to the limiting disc mounting plate 12 by bolts. The upper limit disc 11 has a damper clearance hole 112 at its center, and three insertion holes 111 are evenly distributed around the periphery of the damper clearance hole 112. The insertion holes 111 can cooperate with bolts on the top surface of the damper assembly to achieve upper limit positioning of the damper assembly. The supporting base plate 31 has U-shaped holes 311 on its left and right sides for fixed connection with the base of the testing machine. The fixing clamp 33 has a positioning step 331 to ensure installation accuracy; the fixing clamp 33 also has an arc notch 332 for clamping the semi-circular ring clamping sleeve 34. The semi-circular ring clamping sleeve 34 has a stop 341 to prevent it from falling.

[0027] The method of using this utility model is as follows:

[0028] 1. Fix the upper limit component 1 to the testing machine and fix the lower limit component 3 to the base of the testing machine;

[0029] 2. Insert the shock absorber assembly 2 to be tested into the hole formed by the two semi-circular ring clamping sleeves 34 to limit the lower part of the shock absorber assembly 2; at the same time, insert the bolt on the top surface of the shock absorber assembly into the insertion hole 111 to limit the upper part of the shock absorber assembly 2.

[0030] 3. Adjust the stroke of the testing machine and conduct fatigue tests according to the technical requirements.

[0031] This invention can simultaneously perform tests on one, two, or three shock absorber assemblies, allowing for the selection of the number of test pieces according to different test requirements. Furthermore, this invention facilitates inspections during fatigue testing of items such as damper oil leakage, wear and cracking of the upper support rubber parts, weld breakage of the bracket, and friction between the dust cover and the oil reservoir.

[0032] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. A fatigue testing fixture for a vibration damper assembly, characterized in that, It includes an upper limit assembly (1) and a lower limit assembly (3); the top of the upper limit assembly (1) can be fixedly connected to the testing machine, and the upper limit assembly (1) includes multiple detachable upper limit discs (11). The upper limit discs (11) can cooperate with the upper tray of the shock absorber assembly to limit the upper part of the shock absorber assembly. The lower limit assembly (3) includes a support base plate (31), a U-shaped support plate (32), and a fixing clamp (33); the U-shaped support plate (32) is fixedly connected to the front and rear sides of the support base plate (31), and the fixing clamp (33) is detachably connected to the U-shaped support plates (32) on both sides. There are multiple fixing clamps (33); two semi-circular ring clamping sleeves (34) are clamped between two opposing fixing clamps (33).

2. The fatigue testing fixture for the shock absorber assembly according to claim 1, characterized in that, The upper limit assembly (1) further includes a limit disc mounting plate (12), and the upper limit disc (11) is detachably connected to the limit disc mounting plate (12) by bolts.

3. The fatigue testing fixture for the vibration damper assembly according to claim 2, characterized in that, The upper limit disk (11) is provided with a damper clearance hole (112) at the center, and multiple insertion holes (111) are evenly distributed around the damper clearance hole (112).

4. The fatigue testing fixture for the shock absorber assembly according to claim 1, characterized in that, The support base plate (31) is provided with U-shaped holes (311) on the left and right sides for fixed connection with the base of the testing machine.

5. The fatigue testing fixture for the shock absorber assembly according to claim 1, characterized in that, The fixed clamping plate (33) is provided with a positioning step (331); the fixed clamping plate (33) is also provided with an arc notch (332) for clamping the semi-circular ring clamping sleeve (34).

6. The fatigue testing fixture for the vibration damper assembly according to claim 5, characterized in that, The semi-circular ring clamping sleeve (34) is provided with a stop plate (341).

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