Research of the Influence of Geometrical Factors on Rotary Accuracy of High-precision Spindle

摘要：

　　As an important component of machine tools,spindle is the end part directly determining the quality of machined surfaces.It is essential to guarantee the spindle rotary accuracy for improving the machining quality.Spindle rotary accuracy is determined by bearing accuracy and other components’ geometric error.Firstly,a 5-DOF bearing model is applied to describe the position and orientation deviations between inner ring and outer ring.It is also used to describe bearings’ rotational error.Secondly,the distance of curvature centers of inside and outside raceways is calculated when the position and orientation of inner ring changes,in consideration of the dimensioned and form errors of the inner,outer rings and balls.Small Displacements Torsor (SDT) is used to describe machining error of spindle.Finally,geometric factors such as shaft machining error,bearing’s preload and the assembly angle are discussed.

关键词： Spindle rotary accuracy Small displacements torsor Assembly process bearing preload

作者: Jibin Zhu Jinhua Zhang Junkang Guo

作者单位: School of Mechanical Engineering Xian Jiaotong University Xian 710049, China

会议类型: 国际会议

会议名称: 2013 International Symposium on Assembly and Manufacturing(2013装配与制造国际专题会议)

会议地点: 西安

会议语种:英文

页码: 264-269

在线出版日期: 2013-07-01（万方平台首次上网日期，不代表论文的发表时间）