三维激光加工的轨迹规划的研究

The Path Planning Method For 3 Dimensional Laser Processing

在汽车覆盖件的激光加工中,一个覆盖件上的边界以及众多的大大小小的孔洞都可以用激光切割一次完成。如何使加工连续进行,一次完成一个覆盖件上的所有部分的切割工作以及合理安排加工轨迹的切割顺序是进行三维激光加工离线自动编程要解决的问题,它直接影响到汽车生产的生产效率。本文研究了三维激光加工激光头行走的特点,为了一次完成工件上所有孔、洞的切割工作,避免与工件发生碰撞,提出了激光头位姿在过渡轨迹和安全平面上的规划方法,同时利用神经网络方法和最短路径法对加工顺序进行合理安排,以提高加工效率。该方法用在作者开发的三维激光加工离线自动编程系统中,取得了满意的效果。

In this paper a method to avoid laser head from interfere with workpiece is presented. The intergrade path and safe plan are used to adjust laser laser for next step processing. Optimal path plannings which are based on neural network and minimal path algorithm have been used to develop Laser CAM software. It is showed in practical laser processing this is powerful method in offline auto program for 3 dimensional laser processing.