Reinforcing structure of suspension installation points for automobile

Abstract

The invention provides a reinforcing structure of suspension installation points for an automobile. On the premise of ensuring the installation intensity and stiffness, the achievement difficulty of the process is lowered, and the platform requirement is met. The reinforcing structure of the suspension installation points for the automobile comprises a reinforcing board of a front longitudinal beam inner board body, a suspension supporting board and the front longitudinal beam inner board body, wherein the reinforcing board of the front longitudinal beam inner board body and the suspension supporting board are welded to be a suspension reinforcing board subassembly, the suspension reinforcing board subassembly is provided with at least three full-closed or semi-closed box-shaped units; each box-shaped unit is provided with the installation points; the suspension reinforcing board subassembly and the front longitudinal beam inner board body are welded and fixed. As the box-shaped units are formed inside the structure and the multiple suspension installation points can be provided at the same time, the platform design requirement of a front longitudinal beam is met, the dynamic stiffness and the static stiffness of the suspension installation points are improved, resonance between the suspension installation points and the vibration frequency of an engine is avoided effectively, and the durability and the NVH performance of the installation points are improved; compared with the prior art, the reinforcing structure has the advantages that the number of parts is reduced, and the process is easy to implement.

Description

technical field [0001] The invention belongs to the technical field of automobile body structures, and in particular relates to a suspension installation point reinforcement structure for automobiles. Background technique [0002] The suspension mounting points carry the weight of the entire engine and transmission, and are very heavily loaded. The quality of the structural design at the suspension installation point directly affects the strength and rigidity of the installation point. The strength directly determines whether the mounting point of the suspension will fail due to fatigue, while the stiffness determines the NVH performance, that is, whether it will affect the comfort of the occupants. [0003] Such as figure 1 As shown, the current suspension reinforcement structure at the front longitudinal beam of the automobile body is welded by the front longitudinal beam inner plate reinforcement plate (2), the suspension front support plate (3), and the suspension rear...

AI Technical Summary

Problems solved by technology

The suspension reinforcement structure has the following problems: the number of suspension support plates is large, and on the basis that the front longitudinal beam inner panel reinforcement plate (2) and the front longitudinal beam inner panel body (1) are bonded on three sides, if the front longitudinal beam The inner plate reinforcement plate (2) and the suspension front support plate (3) and the suspension rear support plate (4) are also bonded on three sides, so there are two times of three-sided bonding. It is difficult to control the welding accuracy, and the precision of the stamping parts is high. , the production process is not easy to control, and if the reinforcement plate of the front longitudinal beam inner panel (2) and the suspension front support plate (3) and the suspension rear support plate (4) are only bonded on both sides, and the lower side is not connected, it is easy It causes poor structural rigidity and strength, and it is difficult to meet the strength and rigidity requirements of the suspension installation point

According to the traditional design method, the structure is very complicated. Obviously, the structure and technology cannot be realized, and it cannot meet the requirements of a platform with multiple suspension installation points for a longitudinal beam.

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