| 摘要 |
<p>A method of moving the nozzle of a CNC laser beam machine, which performs three-dimensional working, with respect to a surface to be worked. A hand coordinates system comprising a plane extending along the nozzle axis and that perpendicular to the nozzle axis is provided and a command of movement in said system is outputted with the use of a machine operating board (31). Matrix forming means (38) generates a conversion matrix for converting the hand coordinates system to a basic coordinate system from information (39a, 39b) on rotational positions of the axes alpha and beta indicating an attitude of the nozzle. Coordinates converting means (37), while using said conversion matrix, converts movement commands ( DELTA xh, DELTA yh, and DELTA zh) into movement amounts ( DELTA x, DELTA y, and DELTA z) in the basic coordinates system for moving the nozzle. Thus the nozzle can easily be moved without changing the distance between the nozzle and the surface to be worked. The distance between the nozzle and the work can be adjusted with the nozzle moved perpendicularly to the surface to be worked. <IMAGE></p> |
