Automotive front auxiliary frame structure

Abstract

The invention discloses an automotive front auxiliary frame structure. The automotive front auxiliary frame structure comprises a front auxiliary frame upper plate (1) and a front auxiliary frame lower plate (2), and flanges as reinforcing structures are respectively arranged on the front auxiliary frame upper plate (1) and the front auxiliary frame lower plate (2) and are connected with each other by seam welding. By the technical scheme, the automotive front auxiliary frame structure is simple, scientific and reasonable in overall layout, convenient to manufacture and simple in machining technology, and the production cost is greatly reduced; based on lightweight design thinking, the use amount of materials is reduced, and the manufacturing cost of the automotive front auxiliary frame is reduced effectively; the weight of an automobile body is reduced, and fuel economy of a whole automobile is improved; the reinforcing structures such as bosses and the flanges are arranged, stress concentration at positions where the front auxiliary frame is connected with a swing arm, a stabilizing rod and the like is reduced, so that risks of fatigue cracking of the front auxiliary frame are greatly reduced, requirements of strength and rigidity are met, meanwhile, the structure is simplified, and safety and stability of the front part of the automobile are improved.

Description

technical field [0001] The invention belongs to the technical field of automobile structure, and relates to an automobile body structure, and more specifically, relates to an automobile front auxiliary frame structure. Background technique [0002] With the rapid development of the automobile industry and the continuous improvement of people's living standards, the demand for and possession of automobiles is increasing, and people are paying more and more attention to the comfort and safety of automobile operation. As an important load-bearing component of the automobile chassis system, the front sub-frame of the automobile plays an important role in improving the driving comfort and handling performance of the automobile. [0003] In the field of automobile chassis manufacturing technology, especially the important parts of the automobile chassis, the safety and reliability of the automobile front sub-frame is directly related to driving safety. The front subframe of the c...

AI Technical Summary

Problems solved by technology

In order to ensure the strength and rigidity of the front subframe, hollow sections of different shapes and sizes are usually designed, and many reinforcing plates are set to strengthen the structure at the same time, which makes the structure cost higher, the process complicated, the weight larger, and the production efficiency lower.

[0006] In order to give full play to the bearing function of the front sub-frame of the car and ensure the stability of the front sub-frame, the design of the existing front sub-frame of the car tends to be large-scale in order to fully ensure its rigidity, resulting in an increase in the weight of the car body

At the same time, due to the increased surface area of ​​the structure, it is easy to generate vibration during the driving process of the car, which leads to greater noise, seriously affects the NVH performance of the whole vehicle, and reduces the quality of the whole vehicle

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