| 摘要 |
PURPOSE:To enable welding and cutting by a laser beam oscillator in a working head of laser beam machine by which a work is irradiated with a laser beam from nozzles which is condensed by a reflection mirror by providing a nozzle or nozzle unit fitted with nozzles in freely attachable-detachable to-from a housing in which the reflection mirror is housed. CONSTITUTION:A nozzle unit 3 for welding and a nozzle unit for cutting are provided on a female screw part 22 of the housing 2 in freely attachable- detachable and selectively provided in accordance with kinds of working such as cutting or welding. The nozzle units having interchangeability are stored in a tool magazine similarly to the automatical exchange of tools in a machining center and when a program is prepared so that nozzles of a laser beam working robot are automatically exchanged by an automatic tool exchanger, various kinds of working is carried out for a long time by using one laser beam oscillator. |
