Vehicle rear frame assembly

Abstract

The invention relates to a vehicle rear frame assembly, which comprises a rear side wall inner plate casting and a top cover rear cross beam connected to the rear side wall inner plate casting. The rear side wall inner plate casting comprises a rear side wall inner plate and a D column joint which are cast into a whole, and the top cover rear cross beam is connected to the rear side wall inner plate casting through the D column joint. According to the vehicle rear frame assembly, the casting process design is adopted, a plurality of parts in the prior art are integrated, the structural integration degree is high, the number of the parts is reduced, and the assembling precision is improved.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a rear frame assembly of a vehicle body. Background technique [0002] The mainstream rear frame structure of the body-in-white of current models is made of tailor-welded steel parts, such as figure 1 As shown, an existing body-in-white rear frame structure 10 is composed of a rear side wall inner panel 11, a rear side wall reinforcement board 12, a D-pillar reinforcement board 13, a C-pillar reinforcement board 14, a roof rear beam upper board 15, The steel stamping parts such as the lower plate 16 of the rear beam of the top cover are formed by welding, the number of parts is large, the structure is complex, and the welding accuracy of the assembly is not high, and the steel frame structure needs to increase parts at the D-pillar joint of the D-pillar reinforcement plate 13 Therefore, it is necessary to provide a body rear frame assembly with fewer parts, simple structure and high c...

AI Technical Summary

Problems solved by technology

[0002] The mainstream rear frame structure of the body-in-white of current models is made of tailor-welded steel parts, such as figure 1 As shown, an existing body-in-white rear frame structure 10 is composed of a rear side wall inner panel 11, a rear side wall reinforcement plate 12, a D-pillar reinforcement plate 13, a C-pillar reinforcement plate 14, a roof rear beam upper plate 15, The steel stamping parts such as the lower plate 16 of the rear beam of the top cover are formed by welding, the number of parts is large, the structure is complex, and the welding accuracy of the assembly is not high, and the steel frame structure needs to increase the number of parts at the D-pillar joint of the D-pillar reinforcement plate 13 Therefore, it is necessary to provide a body rear frame assembly with fewer parts, simple structure and high connection precision

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