保证公差要求的定位基准决策方法研究  

Tolerance based approach for the decision of location datum

作　　者：黄伟军[1] 徐胜勇[1] 林卫国[1] 

机构地区：[1]华中农业大学工学院,武汉430070

出　　处：《现代制造工程》2016年第10期89-93,共5页Modern Manufacturing Engineering

基　　金：国家自然科学基金青年基金项目(51405179)

摘　　要：为解决CAPP中定位基准选择问题,提出一种保证设计公差要求的定位基准决策方法。首先根据进刀方向以及公差信息将加工特征进行分组;然后对每组特征集合进行定位基准决策,建立相应的模糊综合评判模型,实现定位基准的优化选择;最后用实例验证了所提方法的有效性。To solve the location datum selection of Computer Aided Process Planning（ CAPP）, a formalized method on the basis of tolerance requirements was proposed. Firstly, all the machining features of the part were decomposed into a series of sets according to the TAD and tolerance information, then the location datum reasoning for each set of machining features was carried out. The corresponding fuzzy comprehensive evaluation model for location datum optimal selection was established. Finally an illustrative example was given to testify the proposed method.

关 键 词：定位基准决策 加工特征 进刀方向 模糊推理 

分 类 号：TH162[机械工程—机械制造及自动化] TP391.7[自动化与计算机技术—计算机应用技术]