摘要
零件的公差分析是产品公差设计中的重要环节,为提高机械产品质量和零件的互换性,在零件设计时需要考虑尺寸公差和形位公差的关系,即公差原则,而传统的零件公差分析方法很少考虑公差原则中的相关要求,难以对有相关要求的零件进行三维公差分析。针对上述问题,利用SDT理论对有相关要求的轴类零件进行三维公差数学建模,然后结合蒙特卡洛法实现了对此类零件三维公差分析。最后以花键轴为实例,对比了不同公差原则下的零件公差分析结果,验证了所述方法的有效性。
Tolerance analysis of parts is an important process in product of tolerance design,to improve the quality of mechanical products and parts interchangeability,relation betweengeometric tolerances and size tolerance need to consider when parts design,namely the principle of tolerance.Traditional method of tolerance analysis was rarely considered relevant requirements in tolerance principle,it is difficult to parts for 3D tolerance analysis which have relevant requirements. For the above problem,the 3D tolerance mathematicalmodel of shaft parts have related requirements was established by using SDT theory,then combined with the montecarlo method,and the 3D tolerance analysis of parts wasrealized. Finally,use the spline shaft as an example,the result of parts withdifferent tolerance principle tolerance analysiswascompared,and validityof the proposed method was verified.
作者
王辉
黄美发
郑素娟
吴常林
WANG Hui;HUANG Mei-fa;ZHENG Su-juan;WU Chang-lin(School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guangxi Guilin 541004, China;Guangxi Key Laboratory of Manufacturing System and Manufacturing Technology, Guangxi Guilin 541004, China)
出处
《机械设计与制造》
北大核心
2018年第6期86-89,共4页
Machinery Design & Manufacture
基金
国家自然科学基金资助项目(51365009)
广西制造系统与先进制造技术重点实验室主任课题(13-051-09-009Z)
桂林电子科技大学研究生教育创新计划资助项目(YJCXS201501)
关键词
公差建模
公差分析
公差原则
形位公差
SDT理论
蒙特卡洛
Tolerance Modeling
Tolerance Analysis
Tolerance Principle
Geometric Tolerance
Theory SDT
Monte Carlo
