Novel overlapping structure for rear coaming and side coaming

Abstract

The invention discloses a novel overlapping structure for a rear coaming and a side coaming. The overlapping structure comprises a rear floor, a rear wheel bulge, a rear coaming lower cover plate, a rear coaming side plate, a rear coaming connecting plate, a rear coaming supporting plate, a rear stand column inner plate, a rear side coaming inner plate and a rear side coaming outer plate, wherein the lower end of the rear wheel bulge is overlapped with the rear floor; the rear coaming lower cover plate is overlapped with the rear floor; the rear coaming side plate is overlapped to the rear floor; the lower end of the rear coaming connecting plate is overlapped with the upper end of the rear coaming lower cover plate, and the lower end of the rear coaming supporting plate is overlapped with the upper end of the rear coaming side plate; the lower end of the rear stand column inner plate is overlapped to the upper end of the rear coaming connecting plate and the upper end of the rear coaming supporting plate; a cavity structure is formed by the surrounding of the rear side coaming inner plate, the rear wheel bulge, the rear coaming side plate and the rear coaming supporting plate; and the lower end of the rear side coaming outer plate is overlapped to the rear floor and coated on the rear side coaming inner plate. According to the novel overlapping structure disclosed by the invention, the light weight design requirements of automobiles are achieved; besides, the developing cost of a mould of the rear side coaming inner plate is reduced, the material utilization rate is improved, and the developing cost of the whole automobile is reduced; and the novel overlapping structure disclosed by the invention has high strength and high torsional rigidity.

Description

technical field [0001] The invention relates to auto parts, in particular to a novel back panel and side panel overlapping structure. Background technique [0002] In the body structure, the connection structure between the rear wall panel and the side wall, as the key part of the connection between the lower body and the upper body, has a decisive impact on the torsional stiffness, strength, light weight, and development cost of the body. At present, the inner panel of the side wall of the vehicle body is directly lapped and fixed on the rear floor of the car. Due to the large volume of the inner panel of the side wall of the vehicle body, when molding with a mold, it is difficult to design and develop a large mold, and the cost of mold development is relatively high. High, low material utilization, can not meet the lightweight requirements of the car, and at the same time, the inner panel of the body side panel and the rear floor of the car overlap to form a plate structur...

AI Technical Summary

Problems solved by technology

At present, the inner panel of the side wall of the vehicle body is directly lapped and fixed on the rear floor of the car. Due to the large volume of the inner panel of the side wall of the vehicle body, when molding with a mold, it is difficult to design and develop a large mold, and the cost of mold development is relatively high. High, low material utilization rate, can not meet the lightweight requirements of the car, and at the same time, the inner panel of the body side panel and the rear floor of the car overlap to form a plate structure, and its overall rigidity and torsional rigidity are poor

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