工程设计学报2026，Vol.33Issue(3)：315-325,11.DOI:10.3785/j.issn.1006-754X.2026.05.178
考虑进给系统位姿误差与装配应力的机床导轨几何误差形态匹配设计方法
Matching design method for guideway geometric error shape of machine tool considering pose error and assembly stress of feed system
摘要
Abstract
In order to improve the assembly accuracy of precision machine tool guideways,a matching design method for guideway geometric error shapes considering the pose error and assembly stress of the feed system is proposed.Firstly,a mapping model between the geometric errors of the guideways and the pose errors of the worktable was established based on the static equilibrium method.The geometric error shapes of the guideways were analyzed,and the matching experiments on the geometric error shapes were designed.Then,the CRITIC(criteria importance through inter-criteria correlation)weighting method was used to assign weights and evaluate the pose errors of the worktable.The comprehensive scores of the five errors under different combinations of guideway geometric error shapes were obtained,thus obtaining the optimal combinations of three sets of guideway geometric error shapes.On this basis,the stress model of rollers in the guideway slider was established using the Hertz contact theory,and the assembly stress under different combinations of guideway geometric error shapes was analyzed based on the information entropy theory.Finally,the combinations of guideway geometric error shapes that simultaneously met the optimal worktable pose error evaluation results and the most uniform distribution of assembly stress were screened out,and the optimum matching of guideway geometric error shapes considering the pose error and assembly stress of the feed system was obtained.The effectiveness of the proposed method was verified through experiments.The research results have important guiding significance for the precision design and guideway assembly error control of machine tools.关键词
精密机床/位姿误差/装配应力/导轨几何误差/形态匹配Key words
precision machine tool/pose error/assembly stress/guideway geometric error/shape matching分类
机械制造引用本文复制引用
孙光明,高睿,郭鑫,张大卫,佟圣淇,苏喆,李民生,阎兵..考虑进给系统位姿误差与装配应力的机床导轨几何误差形态匹配设计方法[J].工程设计学报,2026,33(3):315-325,11.基金项目
国家自然科学基金联合基金资助项目(U23B20102) （U23B20102）
天津市自然科学基金青年项目(22JCQNJC01000) （22JCQNJC01000）
沈阳市科技重大专项(23-401-1-01) （23-401-1-01）
天津市自然科学基金资助项目(25JCYBJC00260) （25JCYBJC00260）
