重庆大学学报2017，Vol.40Issue(3)：1-11,11.DOI:10.11835/j.issn.1000-582X.2017.03.001
元动作装配单元误差传递模型及有效路径求解方法
Error propagation model and calculating method of effective transfer path for meta-action assembly unit
摘要
Abstract
Based on the structure decomposition of machine tools as function-movement-action,the deviation source that affects precision of meta-action assembly unit was clustered into four types:form error,position error,assembly position error and kinematic error.In order to express the relationship of coupling and nesting vividly,error linkage model was introduced as the basic unit of meta-action assembly unit error relationship to construct structured error relationship model of linkage network and linkage matrix.An assembly error transfer path search method based on error linkage model was proposed,searching all possible paths by mouse maze algorithm,and the effective transfer paths of error component were obtained on the identifying basis of the highest assembly accuracy.Worm axis parallelism error of worm drive meta-action assembly unit was taken as the target to verify the method and the results show that this method is capable of searching all error transfer path efficiently and getting effective path rapidly.This method provides theoretical basis for quality prediction and control of machine assembly.关键词
元动作装配单元/误差/误差链接模型/误差传递路径/精度Key words
meta-action assembly unit/error/error linkage model/error transfer path/precision分类
机械制造引用本文复制引用
刘英,孙云艳,张根保,冉琰..元动作装配单元误差传递模型及有效路径求解方法[J].重庆大学学报,2017,40(3):1-11,11.基金项目
国家自然科学基金资助项目(51575070,51305418) （51575070,51305418）
国家“高档数控机床与基础制造装备”科技重大专项(2014ZX04001-031 （）
2015ZX04003003-07).Supported by the National Natural Science Foundation of China(51575070,51305418) and National Major Scientific and Technological Special Project for “High-grade CNC and Basic Manufacturing Equipment” of China (2014ZX04001-031 （51575070,51305418）
2015ZX04003003-07). （）
