l in the automatic welding system, in order to achieve to improve the welding efficiency is often necessary to make multi-position automatic welding, including feeding, fixturing, welding, cooling-bit or check bit, the next level, thus forming a complete automation system, a one-time completion of the work piece from the assembly, welding, the work of the detected output. The right is a car Ejector board a three-position automatic welding machine, feeding level, soldering bit, check bit. By the Welding Rodsautomatic welding system which is often used duplex or multi-position welding, in the long arm of the robot within the coverage area, the conversion from one station to another station, in order to achieve the multi- bit welding.
 Parts of the Welding Materials, often including one or more of the weld, and often include multiple parts welding a part. For example, our common water heater, car storage pump cylinder, etc., including steel plate rolling straight seam welded to both ends of the head and cylinder girth welding, faucets or outlet nozzle and the cylinder or end cap ring liner or cylinder rack welding seam welding, and welding to complete a part, that the water heater or storage pump. To achieve each welding done automatically, the need to convert automatically from a station to another station, thus forming a water production operations, automatic welding.