LASER BEAM PROCESSING MACHINE

摘要

PURPOSE:To process simultaneously plural points with one unit of laser oscillator by controlling synchronously the oscillation of the laser oscillator and the rotation of rotary chopper mirrors. CONSTITUTION:The laser oscillator 9 emits laser light 11 in accordance with a pulse signal for oscillation control. The laser light which is reflected by the mirror part of the rotary chopper mirror 15 out of the laser light 11 is made into the laser light 11-a and is used for processing of a work piece 20. On the other hand, the laser light which is reflected by the mirror part of the rotary chopper mirror 16 out of the laser light which has passed through the window part of the mirror 15 is made into laser light 11-b which is conducted to the work piece 21. The laser light which has passed through the window part of the mirror 16 is deflected by a reflecting mirror 19 and is made to the laser light 11-c which is conducted to the work piece 22. The respective beams of the light are used for processing. The mirrors 15, 16 are controlled by a control device 14 for the number of revolution in accordance with a sychronizing signal.