三维激光切割数控系统的示教及插补算法研究

The Study on Teaching-Playback Method and Interpolation Algorithm in the Numerical Control System for 3-D Laser Cutting machine

系统介绍了针对两种加工对象——空间曲面和任意平面的激光切割程序的示教生成方法；讨论了基于映射法的空间圆弧插补算法和对旋转影响的补偿控制算法相结合而得出的五轴联动插补算法。实践证明基于这些算法的新型五轴联动激光切割加工控制系统可以保证空间激光切割加工有效进行。

The advantages of using 3-D laser cutting machine to process 3-D sheet metalwork piece is obvious.General NC system cannot fit the special requirements of 3-D laser cutting。considering the feature of 3D laser cutting,a new teaching-playback method and a 5-axis simultane-ous in terpolation algorithm special for 3D laser cutting are discussed in this paper.The tcaching-playback method can generate NC program contentedly and rapidly for two kinds of cutting object-space surface and space plane.The interpolation algorithm can ensure laser beam vertical to part sur-face.The experiments prove that these algorithms can make 3-D laser cutting maching processesrapidly and effectively.