分析了基于层切法的零件模具数控粗加工方法,提出了以层面间台阶最大差值为自适应参量的自适应模具数控粗加工方法;对约束条件进行了详细说明,阐述了自适应层切方法的具体步骤及算法流程图。利用已开发的层切法仿真软件平台,进行了三维模型层切法实例仿真分析。分析结果表明,应用该方法可以进一步减少层切法粗加工残留材料体积,对提高层切法模具数控粗加工效率具有实际意义。 The method of NC rough machining of part mold based on stratum cutting is analyzed. The method of NC rough machining is put forward, which is based on the maximum difference between stratums as adaptive parameter. The constraint condition is described in detail. The specific steps of the method and algorithm flow chart. Using the developed layer cut simulation software platform, the simulation analysis of the three-dimensional model layer cut method is carried out. The analysis results show that the method can further reduce the volume of the residual material in the layering process, and has practical significance for improving the NC roughing efficiency of the layering mold.