关键词: 工序间模型, 特征识别, 制造特征体, 加工特征

Abstract: To achieve quick process design and planning of machined parts,the method to rapidly create the inter-process model was researched.According to the generation methods and characteristics of the machining features,they were divided into three categories of depression feature,protrusion feature and transition feature.The recognition technology was taken as the basic and the feature surfaces as the object to identify the surface group of required machining features by combining with the process knowledge.Based on the half-space ideas and basic modeling,the manufacturing features body was obtained and saved.The parts blank model was generated after-acquired all the manufacturing features and the inter-process model could be created by doing Boolean operation with acquired manufacturing features body.The proposed method was verified by application of complicated machined part.

Key words: inter-process model, feature recognition, manufacturing features body, machining features