Patent ID: 8304692
Filing Date: 2012-11-06
Classification: B23K

Abstract:
1. A forced pressure power supply torch comprising: a first conductive tip body that is connected to a torch body and has a first wire insertion hole formed in a portion of the first tip body in an axial direction; a pressurization shaft that is passed through the first wire insertion hole of the first tip body and has a second wire insertion hole; a compression spring having a first end engaged with the torch body and a second end held in contact with the pressurization shaft; a second conductive tip body that is detachably connected to a distal end of the first tip body and has an accommodation hole formed in a central portion of the second tip body in the axial direction; a power supply tip having a third wire insertion hole formed in a central portion of the power supply tip in the axial direction, the power supply tip being removable from the accommodation hole after the second tip body is removed from the first tip body, wherein, when the second tip body is connected to the first tip body, the power supply tip is arranged along the axial direction in the accommodation hole and urged by the compression spring with a proximal end of the power supply tip held in contact with the pressurization shaft; and a tip cover that is detachably connected to a distal end of the second tip body and arranged in such a manner as to cover a distal end of the power supply tip, the tip cover having a fourth wire insertion hole, wherein the compression spring urges a contact surface of the power supply tip to contact a tapered surface of the tip cover, and wherein the tip cover is arranged in such a manner as to form a clearance between the power supply tip and portions of an inner circumferential surface of the fourth wire insertion hole other than the tapered surface.