Rear sub-frame of automobile

Abstract

The invention provides a rear sub-frame of an automobile applied to the technical field of auto parts. A front cross beam (1) is connected with one end of a left longitudinal beam (3) and one end of a right longitudinal beam (4) respectively, a rear cross beam (2) is connected with the other end of the left longitudinal beam (3) and the other end of the right longitudinal beam (4), after the front cross beam (1), the rear cross beam (2), the left longitudinal beam (3) and the right longitudinal beam (4) are connected, a mouth-shaped structure is formed, the front cross beam (1), the rear cross beam (2), the left longitudinal beam (3) and the right longitudinal beam (4) are structures made of aluminum alloy materials, and the rear sub-frame of the automobile is designed into a structure prepared through the integrated molding process. The rear sub-frame of the automobile is simple in structure and low in cost and has the advantages of being ligh, integrally formed, short in molding time, consistent in performance, free or connection defects, high in accuracy and the like. When collision occurs, the rear sub-frame of the automobile can effectively absorb external impact, and the safety of passengers is ensured when the whole automobile is in use.

Description

technical field [0001] The invention belongs to the technical field of auto parts, and more specifically relates to an automobile rear auxiliary frame. Background technique [0002] As the energy crisis and climate warming continue to aggravate, automobile lightweight has become an urgent issue to be solved. As an important component of the automobile chassis structure, the rear subframe of the automobile plays an important role in isolating vibration and noise. At the same time, it improves the stiffness of the chassis suspension system, which has an important impact on the comfort and handling of the vehicle. Therefore, the design of the rear subframe of the automobile is of great significance in the design of the automobile. At present, the rear sub-frame of automobiles is generally a steel plate sheet metal structure, and its transverse and longitudinal beams and mounting brackets need to be assembled into one body through welding processes. The number of sheet metals i...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in view of the problems in the existing automobile manufacturing technology that the weight of the rear sub-frame of the automobile is large, there are many assembly parts, the assembly cycle is long, the composition and performance of the heterogeneous alloy are inconsistent, the welding defects are difficult to control, and the precision is difficult to control. Provides a simple structure, light weight, integral molding, short molding time, consistent performance, no connection defects, high precision, etc., can effectively absorb external impact when a collision occurs, and ensure the personal safety of drivers and passengers when the vehicle is in use car rear subframe

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