Semitrailer girder structure and welding process thereof

Abstract

The invention provides a semitrailer girder structure and a welding process thereof. The structure comprises an upper wing plate, a lower wing plate and a ventral plate which are vertically assembled, the ventral plate deviates from a central line of the upper wing plate and the lower wing plate, welding seam positions are arranged on the central line of the upper wing plate and the lower wing plate, and the ventral plate is fixed on the central line of the upper wing plate and the lower wing plate by means of flow welding. By the semitrailer girder structure, time for manufacturing a girder can be shortened, labor intensity can be reduced for a staff, and material consumption can be reduced for manufacturing the girder, so that cost is lowered and production efficiency is improved. As for welding of the semitrailer girder structure, a novel welding process is adopted, service efficiency and market share of semitrailers are improved, and good economic benefit is created.

Description

technical field [0001] The invention relates to the field of vehicle girder structures, in particular to a semi-trailer girder structure and a welding process thereof. Background technique [0002] At present, semi-trailers have occupied a major position in my country's transportation industry, and the performance of the semi-trailer's beam is related to the performance of the semi-trailer. The existing semi-trailer beam structure often adopts double-sided welding process. During the processing, each section of the two sides needs double-sided welding, which not only consumes a lot of manpower and material resources, but also increases the time of welding, turning and assembly. Also greatly reduced production efficiency simultaneously. [0003] The existing semi-trailer girder welding process is as follows: place the web and wing plates of the girder on the tooling platform → clamp → knock flat → spot welding → full welding on the first side → turn over → clean the root (if...

AI Technical Summary

Problems solved by technology

The existing semi-trailer beam structure often adopts double-sided welding process. In the process of processing, each section of the two sides needs double-sided welding, which not only consumes a lot of manpower and material resources, but also increases welding, turning and assembly time. At the same time, the production efficiency is greatly reduced

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