在使用盘铣刀铣削螺杆时(采用无瞬心包络方法),由于盘铣刀空间结构的特殊性以及螺杆空间曲面的复杂性,加工时容易发生盘铣刀的侧刃,将已经加工好的螺杆曲面再切削而发生干涉现象.为了避免实际加工中干涉带来的不必要经济损失,在使用盘铣刀的数控加工自动编程系统开发研究中,干涉的判定是非常重要的工作,它可以在工件加工前利用计算机先检验工件加工过程中是否会发生干涉现象而取消试切.在大量实践的基础上,提出了使用盘铣刀铣削螺杆数控加工的几种有效的干涉判定方法,这些方法既可以定性地判定是否发生了干涉,也可以判定具体在哪个位置发生了干涉,定量地计算出干涉量的大小,经实际验证这些方法是非常有效的. In the use of disc milling cutter screw (without centerless envelope method), due to the special structure of the disc cutter space and the complexity of the surface space of the screw, milling cutter prone side edge, will have been processed Of the screw surface and then cutting the occurrence of interference phenomenon.In order to avoid unnecessary interference caused by the actual economic losses, the use of disc cutter NC programming system development and research, the determination of interference is a very important task, it can In the pre-processing of the workpiece using computer to test whether the workpiece in the process of interference will cancel the trial cut on the basis of a large number of practice, put forward the use of disk milling cutter CNC milling several effective methods of interference determination, these methods It can not only qualitatively determine whether interference has occurred, but also determine the specific position in which interference occurs, and calculate the amount of interference quantitatively. These methods are proved to be very effective.