Abstract: A welding carriage traveling with a welding torch mounted thereon includes: a carriage body; and a torch supporting part disposed between the front and rear ends of carriage body and supporting a tip of the welding torch in a state of positioning on a side surface side of the carriage body and facing diagonally downward. The torch supporting part includes a torch swinging unit and a weaving unit. The torch swinging unit includes a torch swinging mechanism which swings the tip of the welding torch in a forward and rearward direction of the carriage body, and thereby moves tip close to the welding line. The weaving unit includes a weaving mechanism which operates so as to integrally rotate a unit case and a torch mounting bar of the torch swinging unit about a screw, thereby to cause the welding torch to perform a weaving operation.

Abstract: A welding carriage traveling with a welding torch mounted thereon includes: a carriage body; and a torch supporting part disposed between the front and rear ends of carriage body and supporting a tip of the welding torch in a state of positioning on a side surface side of the carriage body and facing diagonally downward. The torch supporting part includes a torch swinging unit and a weaving unit. The torch swinging unit includes a torch swinging mechanism which swings the tip of the welding torch in a forward and rearward direction of the carriage body, and thereby moves tip close to the welding line. The weaving unit includes a weaving mechanism which operates so as to integrally rotate a unit case and a torch mounting bar of the torch swinging unit about a screw, thereby to cause the welding torch to perform a weaving operation.