ABSTRACT:With the rapid development of automobile Industry and the stricter requests on the exhaust emissions in our country, there is a higher request to the automobile exhaust purifier's output and the quality. The connection of automobile exhaust system is tube structure, and the purifier is one part of them. Its mainly production method is welding processing. The welding manner in the past was the semi-automatic manual gas shielded welding. The quality of manual welding product is not very stable, and the production efficiency is quite low, and also exists safety control problem. Along with the promotion of the quantity and quality requirement, It can not meet the production actual needs; Now many factories use welding robot, But it costs too much investment expenses, the maintenance cost and the welding materials quality request is high. In view of this problem, In the proper attention to both welding quality, the production efficiency and the production cost reduction, has developed the automobile purifier link seam weld special-purpose welding machine.
This article has analyzed the automobile exhaust purifier spare part unique feature and the materials characteristic, has studied this spare part welding principle and the manner, and has been clear about this spare part welding process and request; In order to improve the link seam’s welding efficiency, has determined the development thoughts on double circular welder weld special plane; Studied the circular welded characteristic of arc startingand receiving arc,Has carried on special plane's overall design, and developed special welder’s driving mechanism, the welding fixture system, the welding torch adjusting mechanism and the complete machine control system.
Key words: Automobile exhaust purifier；Special Welding Machines；Double circular welded...