不同思维角度下零件定位误差计算研究  

Research on Calculating the Positioning Error of Parts under Different Thinking Angles

作　　者：李双成 陈兴媚 LI Shuangcheng;CHEN Xingmei(Guangdong Institute of Technology,Zhaoqing 526100,China)

机构地区：[1]广东理工学院

出　　处：《机电工程技术》2019年第9期23-25,共3页Mechanical & Electrical Engineering Technology

摘　　要：零件的定位误差是由于工件在夹具(或机床)上定位不准确而引起的加工误差。该误差是确定零件正确定位后满足加工精度的前提保障。因此,掌握定位误差的计算是机械设计人员从事夹具设计的一项基本功,也是机械专业学习中的一个难点。通过几个实例从不同角度阐述零件定位误差的计算,为进一步深入研究定位误差计算提供参考和借鉴。The positioning error of parts is caused by the inaccurate positioning of parts on fixtures(or machine tools).The error is the precondition to ensure the accuracy of the parts after they are located correctly.Therefore,mastering the calculation of positioning error is not only a basic skill for mechanical designers in fixture design,but also a difficult point in the study of mechanical specialty.The calculation of part positioning error was elaborated from different angles through several examples,which could provide reference for further study of positioning error calculation.

关 键 词：基准不重合误差 基准位移误差 定位误差 定心定位 支承定位 综合考虑 

分 类 号：TH161.24[机械工程—机械制造及自动化]