| 摘要 |
A laser processing system includes: a numerical control device (1) outputting a laser output signal and a digital signal; a converter (231) converting the laser output signal to an analog signal; a pulse signal generator (22) generating a pulse signal for controlling the analog signal; an auxiliary controller (7) generating a logic signal which forcedly controls transmission/stop of a laser beam; a logical operation unit (28, 29) outputting a result of the logical operation between the pulse signal and the logic signal; a switching device (27) generating a laser drive signal for alternately transmitting/stopping the laser output on the basis of the logical operation result; and a sensor (6) for measuring intensity of light radiated or reflected from a workpiece irradiated with a laser beam. The auxiliary controller (7) generates the logic signal in accordance with the intensity of the light measured by the sensor (6).
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