A General Subframe Fatigue Test Bench

Abstract

The invention discloses a general sub-frame fatigue test bench, comprising: a left-right symmetrical first support base and a second support base; a left-right symmetrical upper support plate, the two ends of which are respectively fixed on the first support On the base and the second support base; the first clamp, which is adjustable in the Z direction and the Y direction, is arranged on the first support base; the second clamp, which is adjustable in the Z direction and the Y direction, and relatively The first fixture is arranged on the second support base; the third fixture is arranged on the bottom surface of the upper support plate with adjustable positions in X and Y directions. The invention can move or rotate the fixture with multiple degrees of freedom, so that the bench can be used to carry out the fatigue endurance test for sub-frames of different structures and sizes, and it is only necessary to change the size of the chuck plate to simulate different sub-frames in practice. The installation state in the car has good versatility, simple structure and easy installation, can be used repeatedly, and has high economic benefits.

Description

technical field [0001] The invention relates to the technical field of auto parts testing, in particular to a general sub-frame fatigue test bench. Background technique [0002] The subframe of the automobile can transmit the excitation of the road surface and has the function of reducing vibration and noise. In order to ensure its reliability, it is an indispensable part of the production design to carry out relevant fatigue tests on it. With the increase of competitive pressure, the traditional fatigue durability road test of automobile subframe alone can no longer meet the current design and production cycle. Therefore, the fatigue durability bench test of automobile subframe has become an important way to study the durability and strength performance of automobile subframe ; [0003] The subframe fatigue test benches currently seen are mainly divided into two types: gantry type and ground support type. The gantry type test bench is expensive, and the fixtures used to fi...

AI Technical Summary

Problems solved by technology

[0002] The subframe of the automobile can transmit the excitation of the road surface and has the function of reducing vibration and noise. In order to ensure its reliability, it is an indispensable part of the production design to carry out relevant fatigue tests on it. With the increase of competitive pressure, the traditional fatigue durability road test of automobile subframe alone can no longer meet the current design and production cycle. Therefore, the fatigue durability bench test of automobile subframe has become an important way to study the durability and strength performance of automobile subframe ;

[0003] The subframe fatigue test benches currently seen are mainly divided into two types: gantry type and ground support type. The gantry type test bench is expensive, and the fixtures used to fix the subframe are usually specially designed and welded to the gantry frame. In general, although this kind of sub-frame fatigue test bench is firm and stable, it can only be limited to a certain type of sub-frame for fatigue tests, which has a low utilization rate and low economic benefits; although the ground-supported fatigue test bench has a simple structure, only Several uprights are needed to fix the subframe, and it has certain versatility. However, for some subframes with specific structures, such as when the subframe and body mounting points are located at the protruding and extended position on the upper part of the subframe, the ground support type The columns of the fatigue test bench cannot be connected to the body mounting points on the subframe, so fatigue tests can only be performed on specific subframes

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