| 摘要 |
PURPOSE:To save a space, and to decrease the number of connecting members by installing a laser cutting machine consisting of a laser oscillator and a working head, on a placing base provided on the frame of a machine tool. CONSTITUTION:At the time of laser working by a laser cutting machine 2, an air pressure supplied to air springs 33, 34 is reduced,and an upper frame body 30 is made to approach a lower frame body 31. In that case, a positioning cone and a positioning wedge 48 are fitted into a recessed body and a recessed body 49, respectively, and positioning is executed. In a state that a working head 22 has been positioned exactly, when a bellows-shaped connecting part 24 is expanded, a lifting part 25 is made to approach at a prescribed distance against a plate material. Subsequently, a laser working is performed by irradiating a laser beam emitted from a laser oscillator 21, to a sheet metal from a tip 25a of the lifting part 25. |
