| 摘要 |
PURPOSE:To save the energy and to improve the working accuracy by dividing an output control mode into a mode for executing cut-off of a laser output path, a pre-oscillation and a temperature control and a mode for not executing them, and switching suitably both of them in accordance with a command. CONSTITUTION:A first and a second output control modes are provided on a laser output control system of an NC laser beam machine, and a first output control mode outputs an output command PC in a state that a shutter 23a remains closed and brings a discharge tube 4 to pre-oscillation, switches a switch 26 to a temperature sensor 25 side and measures a temperature of laser gas 19, and derives a different to a set temperature. When the temperature of the laser gas rises to a set temperature, an output command value is set to zero and a base discharge state, the switch 26 is switched to a power sensor 24 side, a shutter 23a is opened and working of a work 17 is executed by a laser light 7. On the other hand, a second output control mode inputs a working command and sets a base discharge state, opens the shutter 23a and executes working of the work 17. By switching suitably this output control mode in accordance with a command, the energy saving and high working accuracy are realized. |
