基于多通道电感测量的圆周等分孔位置度在线快速评定方法  

On-line Rapid Assessment Method for the Positions of Equally Distributed Circumferential Holes Based on Multi-channel Inductance Measurement

作　　者：李兵[1] 樊寅斌 孙彬 兰梦辉 龙兴元 侯颖 LI Bing;FAN Yinbin;SUN Bin;LAN Menghui;LONG Xingyuan;HOU Ying(State Key Laboratory of Mechanism Manufacture System Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China;School of Mechatronic Engineering, Xi'an Technological University, Xi'an 710021, Shaanxi, China;Qinchuan Machine Tool Group Co., Ltd., Baoji 721009, Shaanxi, China)

机构地区：[1]西安交通大学机械制造系统工程国家重点实验室,陕西西安710049 [2]西安工业大学机电工程学院,陕西西安710021 [3]秦川机床工具集团股份公司,陕西宝鸡721009

出　　处：《兵工学报》2020年第4期799-809,共11页Acta Armamentarii

基　　金：国家重点研发计划项目(2017YFB1300704);国家科技重大专项项目(2014ZX04013011);智能制造综合标准化与新模式应用项目(2016年)。

摘　　要：针对工业机器人RV减速器精密零件行星架与摆线轮的加工精度在线测量问题,提出一种位置度极角二分法搜索寻优算法,并研制出一种融合位置度量规、坐标测量技术以及多通道电感协同测量技术的圆周等分孔位置度在线快速测量仪。利用多通道电感传感器采集零件被测孔的坐标数据,通过孔心多边形旋转变换和极角二分法迭代寻优,迅速准确得到各孔满足最优的位置度误差。设置单个零件测量节拍小于10 s,以适应生产线上的测量要求。基于分析测量仪的误差源,完成传感器静态标定实验和非线性误差补偿。算法仿真实验、重复性实验和精度对比实验结果表明:所提算法精度小于1.4μm,精度较高;测量仪重复性精度小于1.5μm,再现性小于1.0μm;测量仪与三坐标测量机结果对比误差平均小于2.6μm,证明了位置度在线测量仪具有较高的稳定性和可靠性。A positional polar angle dichotomy search optimization algorithm is proposed for on-line measuring the machining accuracies of planetary carrier and cycloid of precision parts in industrial robot RV reducer.An on-line rapid measuring instrument for the positions of equally distributed circumferential holes is proposed,which combines position measuring meter,coordinate measurement technology and multi-channel inductance collaborative measurement technology.The multi-channel inductive sensor is used to collect the coordinate data of the measured hole of the part,and the optimal position error can be quickly and accurately obtained by the“hole-centered polygon”rotation transformation and the polar angle dichotomy iterative optimization.The measuring time of a single part is less than 10 s,which is suitable for measuring requirements on the production line.The sensor static calibration experiments and nonlinear error compensation were completed by analyzing the error source of measuring meter.Through algorithm simulation experiment,repetitive experiment and precision comparison test,the accuracy of the proposed algorithm is less than 1.4μm,which has high accuracy;the repeatability of the measuring instrument is less than 1.5μm,and the reproducibility is less than 1.0μm;and the comparison error between the measuring instrument and the coordinate measured results is less than 2.6μm on average,which proves that the position measuring instrument has high stability and reliability.

关 键 词：零件 圆周等分孔 在线测量 位置度 二分法 搜索寻优 

分 类 号：TB921[一般工业技术—计量学]