Front sub-frame fall-off mechanism strength test device and method

Abstract

The invention discloses a front sub-frame fall-off mechanism strength test device and method and belongs to the automobile safety design technical field. The device includes a pull-off mechanism assembly, an automobile body sample piece, a connection piece, a static strength test angle seat assembly and a lower base assembly; the static strength test angle seat assembly includes an inclined surface and a base; one end of the connecting piece is welded onto the automobile body sample piece; the pull-off mechanism assembly is connected with the connection piece; the automobile body sample piece is fixed onto the inclined surface of the static strength test angle seat assembly; and the base is fixed onto the lower base assembly. The fall-off strength of a front sub-frame can be simulated through the front sub-frame fall-off mechanism strength test device of the invention, and therefore, test costs can be decreased; the inclined surface of the static strength test angle seat assembly is used, and therefore, the stressed condition of the joint of the automobile body sample piece and the connection piece can be closer to a practical situation when a hydraulic universal testing machine pulls the pull-off mechanism assembly and the lower base assembly, and thus, the front sub-frame fall-off mechanism strength test device can accurately simulate the fall-off strength of the front sub-frame.

Description

technical field [0001] The invention relates to the technical field of automobile safety design, in particular to a strength test device and method for a front sub-frame shedding mechanism. Background technique [0002] With the development of the economy and the advancement of technology, the number of cars owned by urban and rural residents has increased rapidly, and road traffic accidents have become one of the serious threats to human life. Occupants of vehicles are often injured or killed as a result of collisions in road traffic accidents. In order to reduce the casualties of people in the car when road traffic accidents occur, the front sub-frame of the car is connected with the car through the front sub-frame drop-off mechanism, and the front sub-frame will fall off when the car collides, so as to increase the deformation and absorption during the collision. effective space. In practical applications, it is often necessary to test the shedding strength of the front...

AI Technical Summary

Problems solved by technology

[0005] Due to the high cost of automobiles, there is a problem of high cost when using the real car crash test to test the shedding strength of the front sub-frame, and it is difficult to accurately test the shedding strength of the front sub-frame by using the real car crash test. Therefore, there is an urgent need for a strength test equipment for the front sub-frame shedding mechanism that can replace the actual vehicle crash test.

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