| 摘要 |
A processing system for stably processing a workpiece even if the shape of the workpiece changes every production lot of the workpiece, or by a change of the workpiece. The distance between the workpiece and an end of a nozzle of a laser machining head is measured by a distance sensor. A data correcting value DeltaZ'mn is calculated using a measured distance DeltaZrn at each teaching point and a set gap value DeltaZs (step S 6 -S 15 ). By using DeltaZ'mn, the data of the teaching points are corrected to new data of the teaching points of the program (step S 16 -S 19 ). The distance between the workpiece and the end of the nozzle of the laser machining head does not become larger because the teaching points of the processing program are corrected every time when the workpiece is processed. The interference between the workpiece and the head may be prevented and the processing may be stably implemented because the amount of correction becomes smaller when the position of the head is corrected during the processing.
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