主轴径向回转误差测试中的误差分析  

Error Analysis of Test Errors in Radial Rotation Error of Spindle

作　　者：陈清[1] 梁兵[2] 

机构地区：[1]湖南大学材料科学与工程学院,湖南长沙410082 [2]国防科技大学工程兵学院,湖南长沙410072

出　　处：《湖南大学学报（自然科学版）》2003年第4期23-25,32,共4页Journal of Hunan University:Natural Sciences

摘　　要：对以圆柱体作为被测试对象在主轴径向回转误差的测试中可能引入的测量误差进行了分析.讨论了主轴安装倾斜或偏心引入的测量误差、测头安装偏心引起的测量误差、以及测量仪器引起的线性漂移等误差项的来源及对实际误差的精度影响,并给出了误差表达公式.指出精密主轴的偏心运动和安装测头的装夹偏心有相关性,实际分离的偏心值为两者的耦合项;偏心运动与主轴和被测试对象材料存在相关性;由主轴轮廓外形引入的测量误差在满足精度的前提下,可以使用标准圆柱体作被测试对象.This paper studied the errors existing in the test of axis's radius-ward rota tion when regarding cylinder as the investigated object,analysed the source of some test errors such as axis's inclination or deflection,the fixed test-probe 's deflection, the test apparatus's linear waft, and these errors' effect on actual measure precision,and gave out the error's formula. The result shows that the deflection motion of axis is not only related to the defle cti on of the cramp of the fixied test-probe,but also the amoun t of actual deflection in the coupling item, it also shows that the deflect ion motion i s relevant to the materials of axis and the tested object. From the study, we can reach a conclusio n that the test deflection resulting from the contour shape of axis could use st andard fixed thing as test object so long as it meets to the precision demand.

关 键 词：主轴径向回转误差 测试 误差分析 偏心运动 误差求解 

分 类 号：TH161[机械工程—机械制造及自动化]