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Test fixture for mounting point dynamic rigidity of auxiliary frame swing arm

A technology for testing tooling and installation points, applied in vehicle testing, elasticity testing, machine/structural component testing, etc. Solve problems such as adaptability, and achieve the effect of solving the single adaptability of pipe diameter

Pending Publication Date: 2020-02-28
WANXIANGQIANCHAO CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A test tool for body attachment jog stiffness, such as application publication number CN 108414233A, is a test tool for body attachment jog stiffness. This structure meets the needs of different models by continuously adjusting the length of the extension block. But it is not suitable for the inching stiffness test of the swing arm of the sub-frame, and it cannot solve the problem of single adaptability

Method used

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  • Test fixture for mounting point dynamic rigidity of auxiliary frame swing arm

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: This kind of testing tooling for the inching stiffness of the swing arm of the sub-frame mainly includes a tooling main body 1, a curved surface, a plane and a swing arm sleeve 4. The tooling main body 1 is a rectangular block, and its four sides are Curved surface, the curvature of the curved surface depends on the pipe diameter of the swing arm sleeve 4, and its upper and lower surfaces are planes, one of which is fixedly connected to a swing arm sleeve 4, and one plane is fixedly connected to a three-way acceleration sensor, and three of the remaining surfaces are arbitrarily selected. The surface is excited using a hammer in three directions. The use of this test tooling structure can facilitate the dynamic stiffness test of the installation point of the swing arm of the sub-frame; the use of rectangular blocks with four curved surfaces can be applied to the installation point dynamic stiffness test of the swing arm of various pipe diameters, which solv...

Embodiment 2

[0014] Embodiment 2: on the basis of embodiment 1, as figure 1 As shown, the curved surfaces include the first curved surface 2-1, the second curved surface 2-2, the third curved surface 2-3 and the fourth curved surface 2-4, all of which can be used for hammer excitation. It is helpful to realize the dynamic stiffness test in three directions of the same installation point.

Embodiment 3

[0015] Embodiment 3: on the basis of embodiment 1, as figure 1 As shown, the planes mentioned include the first plane 3-1 and the second plane 3-2, both of which can be used for hammer excitation. It is helpful to realize the dynamic stiffness test in three directions of the same installation point.

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Abstract

The invention discloses a test fixture for mounting point dynamic rigidity of an auxiliary frame swing arm. The test fixture mainly comprises a fixture body, a curved surface, a flat surface and a swing arm sleeve; the fixture body is a rectangular block, wherein four side surfaces of the fixture body are curved surfaces, and the upper and lower surfaces are flat surfaces; and one curved surface is fixedly connected with one swing arm sleeve, one flat surface is fixedly connected with a three-way acceleration sensor, and three surfaces are selected randomly from the remaining surfaces to be hammered and excited by using forces in three directions. The beneficial effects of the test fixture for the mounting point dynamic rigidity of the auxiliary frame swing arm provided by the invention are as follows: by means of the test fixture structure, dynamic rigidity test can be conveniently carried out on mounting points of the auxiliary frame swing arm; the rectangular block with four curvedsurfaces is adopted, so that the test fixture structure can be suitable for the dynamic rigidity test of swing arm mounting points of various pipe diameters, and the problem that the pipe diameter adaptability is single is solved. The invention enhances the adaptability to various pipe diameters through the structural design of the test fixture for dynamic rigidity.

Description

technical field [0001] The invention relates to a testing tool for dynamic stiffness, mainly a tool for testing the jogging stiffness of an auxiliary frame swing arm. Background technique [0002] A test tool for body attachment jog stiffness, such as application publication number CN 108414233A, is a test tool for body attachment jog stiffness. This structure meets the needs of different models by continuously adjusting the length of the extension block. But it is not suitable for the inching stiffness test of the swing arm of the sub-frame, and it cannot solve the problem of single adaptability well. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a test tool for the inching stiffness of the sub-frame swing arm. Through the structural design of the test tool for the dynamic stiffness, its ability to test various pipe diameters is enhanced. adaptability. [0004] The purpose of the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M5/00G01M17/007
CPCG01M5/00G01M17/007
Inventor 沈晓庆
Owner WANXIANGQIANCHAO CO LTD