滚珠丝杠滚道误差测量与分析算法研究.pdfVIP

第 34卷 第 5期 2010年 10月 南京理工大学学报 (自然科学版 ) Journa l o f Nan jing University of Sc ience and Techno logy ( Natura l Sc ience) Vo.l 34 No. 5 O c.t 2010 收稿日期: 2009- 10- 20 修回日期: 2010- 06- 23 基金项目:江苏省学者攀登计划资助项目 ( BK2008050); 国家科技重大专项资助项目 ( 2009ZX04001- 034) 作者简介:冯虎田 ( 1965- ), 男, 博士, 教授, 主要研究方向: 机械电子, 精密检测与控制, E m a i:l fenght@ m a i.l n just. edu. cn。 滚珠丝杠滚道误差测量与分析算法研究 冯虎田,李春梅,陶卫军,欧 屹 (南京理工大学 机械工程学院,江苏 南京 210094) 摘 要: 该文研究了滚珠丝杠滚道几何参数的测量和计算方法。该算法将采集的数据点分割成 滚道数据域和丝杠外径数据域,分别对这 2个数据域进行拟合处理, 得到滚道几何参数,并给出 了评定方法。实验采用非接触式测量方式, 通过采集丝杠滚道法向误差数据, 实现对丝杠各个 滚道参数的测量。该方法可以实现丝杠中径、丝杠外径、螺距、滚道跳动、滚道形状误差的测量 与分析, 与繁琐的手工测试手段相比, 具有采集的数据点多、效率高的优点, 得到的测量结果能 更好地反映丝杠型面误差。 关键词: 滚珠丝杠; 滚道;几何参数;数据采集;误差分析 中图分类号: TG 85 文章编号: 1005- 9830( 2010) 05- 0575- 06 ErrorM easurement and Analysis A lgorithm of Ball Track of Ball Screw Shaft FENG Hu tian, L I Chun me,i TAO W ei jun, OU Y i ( School ofM echanicalEng ineering, NUST, N an jing 210094, Ch ina) Abstract: The measuremen t and calcu lation method of the ba ll track geometry of a ba ll screw shaft is stud ied here. The data collected are div ided into ball track data and ball screw shaft outer diame ter data in the algorithm. These tw o data are fitted separate ly, the ba ll track geom etric parameters are ach ieved and the evalua tionmethod is g iven. U sing the non contactmeasurem entmethod and by collecting the error of the ba ll track cross section data o f a ba ll screw shaf,t all ball track parameters are obta ined in the exper imenta l system. Them ethod can ach ieve the measurement and ana lysis of the nom ina ld iameter, the ball screw shaft outer diameter, lead, ball track run ou,t ball track shape errors can be achieved. C ompared w ith the or ig inal tediousm anua l testing methods, th is test system has the advan tages such asmore co llected data po ints and effic iency. The ball screw shaft error from the measurem ent resu lts is presented better. Key words: ball screw shafts; ba ll tracks; geometr ic parameters; data acquisit ion; error analysis