| 摘要 |
PROBLEM TO BE SOLVED: To suppress meandering of wire in a wire supply path between a wire supply means and a contact tip and accordingly stably supply the wire to a laser irradiation point. SOLUTION: A laser brazing device continuously delivers the wire 12 supplied from a wire supply machine through a guide tube to the irradiation point of a laser beam on a workpiece through the contact tip and fuses the delivery end of the wire 12 by the laser beam. A chuck unit 20 as a meandering suppressing means, which constrains the wire 12 in a radial direction and suppresses the meandering of the wire 12 in the guide tube, is provided at the front step of the contact tip. The chuck unit 20 is configured to have a taper collet 27 which is always urged by a spring 29 and generates fastening force to the wire 12. When the wire 12 is supplied, the taper collet 27 is slightly retreated from a fastening position corresponding to the movement of the wire 12 to allow the free movement of the wire 12. COPYRIGHT: (C)2010,JPO&INPIT |
