关键词: 工序模型, 逆向生成技术, 特征工序分组, 复杂零件

Abstract: Aiming at the problems such as low-level generality and poor efficiency of traditional 3D Intermediate Procedure Model (IPM) generation model,a reverse generation method of IPM oriented to full 3D process planning was proposed.The definition of IPM and its reverse generation technology were researched,and the mapping relationship between machining information and modeling parameters were studied.The relationship between process structure and IPM was analyzed,and full 3D process planning procedure based on feature process grouping was designed.By building correspondence between machining information and IPM auxiliary generation tools,the IPM generation could be transferred to solid modeling operation,and all IPMs could be derived from design model.The feasibility of proposed method was proved by experiment.

Key words: process-model, reverse generation technique, feature process group, complex part