新一代几何技术规范中同轴度基准的建立与体现方法  

Establishment and Embodiment of Coaxiality Datum in New Generation of Geometry Specification

作　　者：余厚云[1] 陈蔚芳[1] YU Hou-yun;CHEN Wei-fang(School of Mechanical and Electrical Science,Nanjing University of Aeronautics and Astronautics,Nanjing,Jiangsu 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《教育教学论坛》2020年第24期309-311,共3页Education And Teaching Forum

基　　金：江苏省高等教育教改研究课题(2019JSJG242);江苏省教育厅、江苏省财政厅“江苏高校品牌专业建设工程资助项目”(PPZY2015A021);南京航空航天大学教育教学改革研究项目(精品课程建设专项,2019JG05140K)。

摘　　要：新一代产品几何技术规范通过参数化及计量数学的方法,依据表面模型、几何要素、操作及操作算子等理论对几何公差进行了规范。其中,几何公差基准的建立和体现规范一直是学习的难点,学生理解和掌握该知识点的难度很大。为此,以典型的同轴度公差为例系统归纳了其基准的建立和体现方法,从而为工科机械类和近机类专业学生在学习机械精度设计课程时提供参考。The new generation of product geometry technical specification has standardized the geometric tolerance according to the theory of surface model,geometric elements,operation and operation operators by means of parameterization and metrological mathematics.Among them,the establishment and embodiment of geometric tolerance benchmark has always been a difficult point in learning,and it is very difficult for students to understand and master the knowledge point.Therefore,taking the typical coaxiality tolerance as an example,this paper systematically sums up the establishment and embodiment method of its benchmark,so as to provide a reference for the students majoring in engineering machinery and near-machine to study the course in Mechanical Precision Design.

关 键 词：同轴度 基准建立 基准体现 产品几何技术规范 

分 类 号：G642.0[文化科学—高等教育学]