Environment-friendly aluminum alloy automobile sub-frame

Abstract

The invention relates to an environment-friendly aluminum alloy automobile sub-frame. The environment-friendly aluminum alloy automobile sub-frame is of a bilaterally symmetrical structure, is made of aluminum alloy, and comprises a front cross beam, a front automobile body left installing part, a front automobile body right installing part, a rear automobile body left installing part, a rear automobile body right installing part, a left longitudinal beam and a right longitudinal beam, wherein the front automobile body left installing part and the front automobile body right installing part are welded and connected through the front cross beam; the rear automobile body left installing part and the rear automobile body right installing part are connected in a butt welding mode; the front automobile body left installing part and the rear automobile body left installing part are welded and connected through the left longitudinal beam; and the front automobile body right installing part and the rear automobile body right installing part are welded and connected through the right longitudinal beam. All use performance indexes such as the strength and the rigidity of the sub-frame can be effectively ensured. The environment-friendly aluminum alloy automobile sub-frame has the advantages that parts are few; the manufacturing process is simple; and the light-weight effect is obvious. On one hand, the workload is greatly reduced; on the other hand, the assembly precision problem due to welding deformation can be reduced; and in addition, the projection area of a single part is not large, so that the goal can be achieved by an ordinary extrusion casting machine.

Description

technical field [0001] The invention belongs to the field of automobile chassis, in particular to an environment-friendly aluminum alloy automobile sub-frame. Background technique [0002] The automobile subframe is an important part of the chassis system. It is a bridge connecting the body and wheels, providing the installation base for half of the automobile chassis. At present, the automobile subframe on the market is mainly welded by steel sheet metal stamping parts. , there are also some combined types of pipe beam structure and sheet metal, and then various brackets are welded on the main structure to provide mounting points for suspension parts, stabilizer bars, etc., resulting in a more complicated rear subframe structure and greater difficulty in forming. With the continuous increase of automobile production and ownership, automobile fuel consumption and exhaust emissions have exerted great pressure on energy and the environment. The steel subframe of automobiles is...

AI Technical Summary

Problems solved by technology

[0002] The automobile subframe is an important part of the chassis system. It is a bridge connecting the body and wheels, providing the installation base for half of the automobile chassis. At present, the automobile subframe on the market is mainly welded by steel sheet metal stamping parts. , there are also some combined types of pipe beam structure and sheet metal, and then various brackets are welded on the main structure to provide mounting points for suspension parts, stabilizer bars, etc., resulting in a more complicated rear subframe structure and greater difficulty in forming. With the continuous increase of automobile production and ownership, automobile fuel consumption and exhaust emissions have put a lot of pressure on energy and the environment. The steel subframe of automobiles is heavy and fuel consumption is high.

Images