WELDING SYSTEM
The movement of a single electrode by a welding robot system (a) is followed by the movement of a single electrode by another welding robot system (b). By constructing the single electrode of one welding robot system (a) and the single electrode of the another welding robot system (b) to perform welding simultaneously in the same direction on the same welding line, the degrees of freedom of the robots are not restricted, the available welding range becomes wide, and constraints on the posture of the robots are eliminated, compared with a case where a tandem welding-dedicated torch is used.
1 . A welding system comprising:
a plurality of welding robot systems each including
a manipulator holding a welding torch for a single electrode;
a control device which controls an operation of the manipulator on the basis of an operation program which is stored in advance; and
a welding power-supply unit which supplies electric power between a welding wire which is a single electrode, and a welding object,
wherein a movement of the single electrode by the manipulator of one of the welding robot systems is followed by the movement of the single electrodes by the manipulators of an other of the welding robot systems, and the single electrode of the one manipulator and the single electrodes of the other manipulators perform welding simultaneously in a same direction on a same welding line, and
welding is performed while forming one melting pool by an arc generated between the single electrode of the one of the welding robot systems, and a base material, and other arcs generated between the single electrodes of the other of the welding robot systems, and the base material.
2 . The welding system of claim 1 ,
wherein the two welding robot systems are used.