Front sub-frame of car

Abstract

The invention relates to a front sub-frame of a car. The front sub-frame of the car comprises a front crossbeam, a rear crossbeam, a left longitudinal beam, a right longitudinal beam, a left front support, a left rear support, a right front support, a right rear support and a steering gear fixing support, wherein the front crossbeam and the rear crossbeam are respectively fixedly connected with the left longitudinal beam and the right longitudinal beam; the left longitudinal beam and the right longitudinal beam are provided with three fixing sleeves in total and an adjusting sleeve; both the left front support and the left rear support are fixed on the left longitudinal beam, and the right front support and the right rear support are fixed on the right longitudinal beam; and the steering gear fixing support is fixed on the rear crossbeam. The technical scheme relates to the sub-frame mechanism of the vehicle, and particularly relates to a structure of a component connected between a car body and an independent suspension. A sectional circular steel pipe is used, the steel pipes are respectively bent into the longitudinal beams and the crossbeams by using a fixture, then the longitudinal beams and the crossbeams are welded together by using a welding clamp, and finally supports of the suspension and the steering gear is welded onto the sub-frame.

Description

technical field [0001] The invention belongs to the technical field of vehicle frames, in particular to a front auxiliary frame of an automobile. Background technique [0002] As an important load-bearing part of the front axle of the car, the front subframe is connected to the body and carries the load of the front axle of the vehicle, the lower connection and suspension, wheels, and fixes the steering gear. Its geometric size, precision and strength have a great influence on the safety, reliability and performance of the vehicle. [0003] At present, the sub-frame basically has two longitudinal beams and three beams welded together. Even if it is a single beam, the upper plate and the lower plate are welded together. These structures have many parts, many welding points, and complex mechanisms. As a result, it is difficult to control and guarantee the geometric dimension accuracy of the sub-frame, which not only affects its function but also affects the performance of the...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a front sub-frame of an automobile to solve the problems of the existing sub-frame with many punched and welded parts, too many molds, and poor precision and consistency.

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