| 摘要 |
PURPOSE:To improve machining accuracy by providing distance sensors for measuring the distances to a machining point of a work more than a prescribed number at intervals in a peripheral direction to the outside periphery part of a machining head to project laser light to machine the work. CONSTITUTION:The work 4 is machined by the laser light projected from a machining nozzle 2 of the machining head 1. >= three sensors are provided at intervals around said machining head 1, for instance, three sensors 5 such as ultrasonic ones, etc., are provided at the equal intervals of 120 deg. around the head 1 and the distance to the machining point 6 of the work 4 by the laser light are measured respectively. Then, it is arranged so that the distances measured by these respective sensors 5 become equal wholly. As a result, the machining head 1 is made in a normal direction to the machining point 6 of the work 4 and besides, the distance between the machining head 1 and the work 4 is maintained constant. Accordingly, the teaching, etc., of the three-dimensional machining can be performed accurately and the machining with high accuracy is made possible. |
