关键词: 工艺辅助特征, 特征分类, 三维工艺模型, 特征匹配, 航空制造

Abstract: To create process model with process auxiliary feature for improving the efficiency of process planning,a rapidly modeling method was proposed oriented to three-dimensional process model with process auxiliary features.Based on the specific applicable,the process auxiliary features were divided into four categories: auxiliary manufacturing feature,auxiliary clamping feature,auxiliary measuring feature and auxiliary assembly feature.The aided-features were designed with its geometric parametric and were managed according to the created auxiliary feature library.The adding criteria and the adding methods were proposed to construct the process auxiliary feature,and then the three-dimensional process models were created.The function module based on NX development verified the effectiveness of the proposed method.

Key words: process auxiliary feature, feature classification, three-dimensional process model, feature matching, aeronautical manufacturing