AUTOMATIC WELDING DEVICE

摘要

An automatic welding device comprising a welding torch (6) equipped with a non-consumable electrode (11), an actuator (7) for moving the welding torch while holding it, and a section (8) for feeding a filler metal (9), wherein a non-consumable electrode contact detecting section (5) detects whether the non-consumable electrode is touching a welding work (10) or not after welding is finished, a filler metal contact detecting section (14) detects whether the filler metal is touching the welding work or not after welding is finished, and, when at least one of the non-consumable electrode and the filler metal is touching the welding work, an actuator control section (57) informs contact of at least one of the non-consumable electrode and the filler metal with the welding work or stops the movement of at least one of the non-consumable electrode and the filler metal by the operation of the actuator and holds at least one of the non-consumable electrode and the filler metal. The non-consumable electrode or the filler metal is prevented from moving while touching the welding work, and thereby damage to the welding work, the non-consumable electrode and the filler metal can be prevented.