| 摘要 |
PURPOSE:To automatically execute centering adjustment so that the axis of a laser beam nozzle body arranged at the lower part of a machining head body in the laser beam machining head corresponds to the center of the laser beam. CONSTITUTION:In the laser beam machining head 1, a ringed nozzle body 17 is arranged at the lower part of the machining head body 3 fitting a condensed lens 9 in the inner part, and plural centering adjustment devices 39 as automatically shiftable in the diameter direction by the irradiating heat of the laser beam LB condensed with the condensed lens 9 so that the axis N of this nozzle body 17 corresponds to the center C of the laser beam LB, are arranged as facing to the nozzle body 17. |
