Back doorknob durability test device

Abstract

The invention discloses a back doorknob durability test device, and aims at providing a test device which is more accurate in test conclusion and allows test data of a durability test to get close to the actual number of use times of a back doorknob. The back doorknob durability test device comprises an installation base, a swing rod and a drive air cylinder, wherein the swing rod is hinged to the installation base through a first hinged shaft, the drive air cylinder is arranged on the installation base, a piston rod of the drive air cylinder is hinged to one end of the swing rod through a second hinged shaft, and the other end of the swing rod is provided with a stress modulation device. The stress modulation device comprises a supporting frame, a first rotating shaft, a cam and a drive motor, wherein the supporting frame is arranged at one end of the swing rod, the first rotating shaft is arranged on the supporting frame and parallel to the first hinged shaft, the cam is arranged on the first rotating shaft, the drive motor is arranged on the supporting frame, and the drive motor is connected with the first rotating shaft through a friction wheel mechanism.

Description

technical field [0001] The invention relates to a test device, in particular to a durability test device for an automobile back door handle. Background technique [0002] The car back door handle is installed on the car back door to facilitate the use of the back door switch. Statistics show that the damage of the back door handle of the car is mainly caused by fatigue, so it is very necessary to carry out fatigue and durability tests on the back door handle of the car. The current automobile handle durability test device usually uses a clamp to clamp the handle, and then drives the clamp and the handle to reciprocate the switching action through the cylinder, so as to simulate the fatigue and durability test of the handle. [0003] Due to the actual use of the back door handle, each time the operator holds the handle to open the back door, the force exerted on the back door handle may be different (large or small); and the current back door handle During the durability te...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems that the back door handle durability test device in the prior art has poor test results, inaccurate test conclusions, and the actual use times of the back door handle are often less than the test data of the durability test, and provides A durability test device for the back door handle, the durability test effect is good; the test conclusion is more accurate, so that the test data of the durability test is close to the actual use times of the back door handle

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