Automobile skeleton, automobile roof skeleton and automobile sidewall skeleton

Abstract

The invention discloses an automobile skeleton, an automobile roof skeleton and an automobile sidewall skeleton, and relates to the technical field of automobiles. The automobile skeleton includes a plurality of connecting points formed by plural vehicle beams being vertically connected with each other, the multiple connecting points include first connecting points, and the first connecting pointsare formed by connecting a first vehicle beam and a second vehicle beam through first connecting pieces; the first connecting pieces include a connecting plate and two L-shaped guard plates, the twoL-shaped guard plates with internal corners outwards are oppositely arranged at the two ends of the connecting plate, so that a U-shaped installation part is formed on one sides of the first connecting pieces, and an installation surface is formed on the other sides of the first connecting pieces; and one end of the first vehicle beam is connected to the installation part in an inserted mode, andthe side wall of the second vehicle beam is fixedly arranged on the installation surface. The automobile skeleton, the automobile roof skeleton and the automobile sidewall skeleton have the beneficialeffects that the defects in the prior art are overcome, the skeletons are suitable for the large-scale design and manufacture of bus body skeletons, and have the advantages of being high in lightweight level, high in material utilization rate, high in structural stability, good in technical condition adaptability, and the like.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an automobile frame, an automobile roof frame and an automobile side wall frame. Background technique [0002] The frame of a traditional bus is generally a steel frame structure, which is welded by rectangular steel pipes. Compared with rectangular steel pipes, aluminum alloy materials have the characteristics of high specific strength, light weight, corrosion resistance and easy processing and manufacturing. In recent years, aluminum alloy materials have been gradually used in the field of automotive technology to achieve lightweight passenger car body structures. However, most of the existing all-aluminum bus frames have problems such as complex structural design and many installation parts, which cannot realize standardized production, and are usually assembled by welding, which is inconvenient for disassembly and maintenance. [0003] The Chinese patent with the applica...

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Problems solved by technology

[0004] However, this technical solution has the following deficiencies: First, the structural strength of a single connector in this solution is relatively weak. When it is applied to a connection point that requires high structural strength, two connectors must be installed symmetrically to ensure structural stability. ; Second, the third mounting plate and the fourth mounting plate of the connector are respectively fixed on the first mounting surface of the main beam and the fourth mounting surface of the auxiliary beam by screws in this scheme, so that the first mounting surface and the fourth mounting surface The surface of the joint between the two surfaces is uneven, which is not convenient for subsequent bonding of glass, window frames, side skins or interior parts of different materials

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