WELDING APPARATUS FOR CONTROLLING ARC LENGTH

摘要

PURPOSE: A welding machine capable of the control of arc length is provided to maintain excellent welding quality regardless of the quality of the pipe by automatically adjusting the length of arc according to the formation state of the pipe. CONSTITUTION: A welding machine capable of the control of arc length comprises a torch holder(20), a support bar(30), a roller(40), and a clamp. The torch holder is formed on one side of the support member. An elastic member(31) is inserted into the outer circumference of the support bar. The support bar vertically moves the torch holder. The roller rotates on the lower part of the support member. The support bar is inserted into the clamp and is slid.