印刷电路板 PCB的加工是二维多孔数控钻的典型。实践表明加工同一零件不同的走刀路径其长度相差极大。为提高生产率 ,应使刀具的走刀路径尽量短 ,这其实是大型的 TSP问题。本文提出了几种路径的生成方法 ,分析了各自的适用场合。并用实例验证所提出的路径生成方法可极大地提高实际钻孔的加工效率。 Printed circuit board PCB processing is a typical two-dimensional porous CNC drilling. Practice shows that the processing of the same part of the different path length of their great differences. In order to improve productivity, you should make the tool path as short as possible, which is actually a large TSP problem. This paper presents several ways to generate the path, analyze their respective applications. The method of route generation proposed by the example is verified to greatly improve the processing efficiency of the actual drilling.