基于定位特征的零件公差规范设计  

Tolerance Specification Design for Parts Based on Positioning Features

作　　者：龚江帆 丁力平[1] 陈炳发[1] 陈文亮[1] 白新宇[2] GONG Jiangfan DING Liping CHEN Bingfa CHEN Wenliang BAI Xinyu(Nanjing University of Aeronautics ＆ Astronautics, Nanjing 210016,China Shenyang Aircraft Corporation,Shenyang 110034,China)

机构地区：[1]南京航空航天大学,江苏南京210016 [2]沈阳飞机工业(集团)有限公司,辽宁沈阳110027

出　　处：《机械制造与自动化》2016年第5期16-21,27,共7页Machine Building & Automation

基　　金：辽宁省自然科学基金航空联合开放基金(2014028030);国家商用飞机制造工程技术研究中心创新基金(SAMC12-JS-15-016)

摘　　要：探讨零件公差规范的生成方法,并在CATIA中实现自动生成符合新一代产品几何技术规范(geometrical product specification,GPS)的三维公差标注。首先研究利用定位特征组成的定位图来描述零件的装配定位,然后基于定位图,给出基准参考系统的公差规范模式和方法,最后在CATIA环境下完成零件公差规范设计系统的开发,并用实例验证了该方法的可行性。This paper introduces an approach of tolerance specification design and the automatic 3D dimensioning tolerane which isconsistent with the new generative geometrical product specification （ GPS） in CATIA. The positioning graphs drawn according to thepositioning features are studied, which are used to describe the assembly positioning constraints, the patterns and methods of thetolerance specifications are presented based on the positioning graphs, and then the system of tolerance specification design basedon CATIA is developed and an example of verifying the feasibility of the proposed method is given out.

关 键 词：公差规范 装配定位 定位特征 定位图 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]