| 摘要 |
PURPOSE:To freely regulate a torch tip angle by joing a nozzle rear end part to a torch main body freely turnably and providing the universal joint structure using a conductive material to a part to come into contact with the rear end part to feed a wire stably. CONSTITUTION:A nozzle 30 and the torch 40 are of the universal joint structure and the nozzle 30 can be optionally oscillated on the circumference in the range of an angle theta. The nozzle 30 is positioned at the desired angular position to tighten a nut 41. A contact part between a bent part of the wire 15 and the inner wall surface of a spherical part 31 is a feeding point 16. The electricity is supplied from a power source to a wire guide 43 and the electricity is supplied to the spherical part 31 via the nut 41 or directly and the electricity is supplied to the wire 15 by the feeding point 16. By this method, since the wire 15 is in contact with the feeding point of the nozzle 30 at all times, the stable welding can be performed and the angle of the nozzle 30 can be optionally regulated, so the torch tip angle can be set to the free angle fitted to the working.
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