| 摘要 |
PROBLEM TO BE SOLVED: To provide a reciprocal drive mechanism of a weld wire capable of performing a reciprocal operation of feeding and retracting the weld wire at a higher speed, minimizing the occurrence of unnecessary vibration, and stably feeding the weld wire. ! SOLUTION: A reciprocal drive mechanism 300 of a weld wire comprises: a wire guide 400 with at least a portion having flexibility, into which a weld wire W to be fed toward a weld torch 200 is inserted; and a torch body part 230 for accommodating one end 421 of the wire guide 400 in a curved state while fixing the one end 421. The reciprocal drive mechanism 300 changes the curved state by allowing the other end 412 of the wire guide 400 to reciprocate in its axial direction and applies a reciprocating motion in a feeding direction to the weld wire W. The reciprocal drive mechanism 300 also comprises a first motion body 310 to be reciprocated while holding the other end 412 of the wire guide 400, and a second motion body 320 to be reciprocated |
