工程设计学报2018，Vol.25Issue(3)：270-277,8.DOI:10.3785/j.issn.1006-754X.2018.03.004
几何公差控制角度偏差及角度公差分析
Angle deviation control using geometric tolerance and angle tolerance analysis
摘要
Abstract
Aiming at the problems that angle size tolerance cannot control the angle deviation be-tween two planes and the angle deviation may be out of control when using geometrical tolerance, the tangent feature symbol for toleranced feature was introduced .When the geometric tolerance was used to control the angle deviation between the toleranced surface and the datum,the tangent feature symbol would be added to the toleranced feature .The conversion method between geo-metric tolerance and angle tolerance was given .Aiming at the problem of the accumulation calcu-lation of angle deviation between two planes in assembly layer,the illustration of angle dimension chain and the accumulation calculation method of angle dimension chain deviation were studied for the parts which had been assembled .Finally,taking the electric wood cutting machine as an ex-ample,the angle accumulation deviation of the relative features of each part was controlled by ge-ometric tolerance to meet the design requirement .The conversion of geometric tolerances to an-gular tolerance of each feature was realized .The angle accumulation deviation calculation using angle dimension chain was analyzed .The example can be used as a reference for geometric toler-ance analysis control between planes and pattern annotation .关键词
角度偏差/贴切要素符号/公差分析/偏差累积/木材切割机Key words
angle deviation/tangent feature symbol/tolerance analysis/deviation accumulation/wood cutting machine分类
矿业与冶金引用本文复制引用
徐旭松,吴德辉..几何公差控制角度偏差及角度公差分析[J].工程设计学报,2018,25(3):270-277,8.基金项目
国家自然科学基金资助项目(51475219) （51475219）
