AUTOMATIC REPLACEMENT DEVICE AND METHOD FOR GAS SHIELDED WELDING TUNGSTEN ELECTRODE OF ROBOT WELDING SYSTEM

摘要

Disclosed are an automatic replacement device and method for a gas shielded welding tungsten electrode of a robot welding system. A gas hood is removed from a welding gun (10) with a burnt tungsten electrode through a gas hood mounting/removing clamp (20); a first tungsten electrode seat (41) is moved to the position corresponding to a tungsten electrode mounting/removing clamp (60) or the welding gun (10) along with a first carriage; the burnt tungsten electrode on the welding gun (10) is removed by the tungsten electrode mounting/removing clamp (60) and is placed on the first tungsten electrode seat (41); a second tungsten electrode seat (42) is moved to the position corresponding to the tungsten electrode mounting/removing clamp (60) or the welding gun (10) along with a second carriage; a new tungsten electrode is taken from the second tungsten electrode seat (42) through the tungsten electrode mounting/removing clamp (60) and is mounted on the welding gun (10); and the gas hood is mounted to the welding gun with the new tungsten electrode through the gas hood mounting/removing clamp (20). According to the method, automatic replacement of the tungsten electrode can be achieved, the weld seam quality of robot welding is guaranteed, the degree of automation of the system is increased, and the welding efficiency is improved.