LASER BEAM MACHINING HEAD FOR YAG LASER BEAM MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a laser beam machining head for a YAG laser beam machine in which the exiting end part of an optical fiber is separately and easily replaced. SOLUTION: In a laser beam machining head which makes use of an optical fiber 13 to transmit the laser beam between a laser beam oscillator and a laser beam machining head 1, the laser machining head of a YAG laser beam machine is provided with three units which are separately and freely replaced and composed of a terminal unit 3 furnished with a laser beam emitting end part of the optical fiber, an intermediate unit 5 which collimates the laser beam LB emitted from the terminal unit, and a condensing unit 6 which condenses the beam collimated by the intermediate unit.