| 摘要 |
PROBLEM TO BE SOLVED: To provide a welding wire feeding device where, even when the present wire is replaced with a welding wire with a different outer diameter for changing welding conditions, the inner diameter of a wire guide can be easily regulated to a proper value without performing the replacement operation of the wire guide. SOLUTION: A taper is formed at the outer circumferential face of the wire guide 21 guiding a welding wire 4 from a wire feed-out part to a composite cable 3 of a welding torch, a slit worked in an axial direction from one end side to the other end side and a slit worked in an axial direction from the other end side to one end side are formed so as to make the reduction of the diameter thereof possible, and by moving a pressurization regulation member 24 having a taper hole corresponding to the taper of the wire guide 21, the inner diameter of the wire guide 21 is reduced or widened so as to be regulated to a proper value. COPYRIGHT: (C)2011,JPO&INPIT |
