Connecting structure of vehicle cabin longitudinal beam and front wall cross beam

Abstract

The invention proposes a connecting structure of a vehicle cabin longitudinal beam and a front wall cross beam. The vehicle cabin longitudinal beam and the front wall cross beam are connected through the connecting structure; the front end of the connecting structure is glued with the left and right two side surfaces of a cabin longitudinal beam assembly; and the back end of the connecting structure is glued with the front wall cross beam. The vehicle cabin longitudinal beam and the front wall cross beam adopt aluminum alloy profiles with better rigidity and strength; and profile molds are low in investment cost and high in production efficiency. The connecting structure is novel and unique in structure, realizes three-dimensional connection of the longitudinal beam and the cross beam, and adopts a structural glue bonding process; and because of the characteristics of cold bonding and hot curing of structural glue, a bonding area has no heat influence, and the strength after bonding curing is not influenced. Meanwhile, before the structural glue is not cured, the thickness of the glue is used for eliminating self manufacturing errors of parts and assembly errors among the parts, so that the manufacturing precision is improved.

Description

technical field [0001] The invention relates to a connection structure between auto parts, in particular to a connection structure between a longitudinal beam of an automobile engine room and a front wall cross beam. Background technique [0002] At present, the all-aluminum body technology is becoming more and more popular in the market. The connection between the longitudinal beam and the beam of the cabin of the all-aluminum body model mainly includes the overlapping of aluminum sheet stamping parts or the overlapping of profile parts and cast aluminum parts. The stamping parts of aluminum plate are overlapped with each other. The structure consists of many parts and all of them are stamped and formed. The longitudinal beams and beams are connected by spot welding, welding or riveting of the parts. As for the overlapping form of profile parts and cast aluminum parts, the main components are profile longitudinal beams and cast aluminum parts, and the two are mainly connect...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims to propose a connection structure between the longitudinal beam of the automobile engine room and the front wall beam, so as to overcome the high cost of mold development of the traditional connection structure parts, poor rigidity and strength of parts, low connection strength, and large welding influence area. , technical problems of high welding process requirements and low manufacturing precision

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