• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (5): 38-46.doi: 10.3901/JME.2018.05.038

• 机构学及机器人 • 上一篇    下一篇

复杂轴类零件非圆轮廓接触式随动测量方法

李静1, 高华钰1, 沈南燕1, 邓杨1, 严隽藩2   

  1. 1. 上海大学上海市智能制造及机器人重点实验室 上海 200072;
    2. 上海电气集团股份有限公司中央研究院 上海 200070
  • 收稿日期:2017-01-14 修回日期:2017-06-29 出版日期:2018-03-05 发布日期:2018-03-05
  • 通讯作者: 沈南燕(通信作者),女,1982年出生,博士,讲师,硕士研究生导师。主要研究方向为智能机床及磨削技术。E-mail:shny@shu.edu.cn
  • 作者简介:李静,女,1982年出生,博士,讲师,硕士研究生导师。主要研究方向为先进制造装备及磨削技术。E-mail:ianbest@shu.edu.cn
  • 基金资助:
    国家科技重大专项(2013ZX04002031)和上海市科委科研计划(13DZ1101600)资助项目。

Tracing Measurement Method for Non-circular Contour of Complex Shafts

LI Jing1, GAO Huayu1, SHEN Nanyan1, DENG Yang1, YAN Junfan2   

  1. 1. Shanghai Key Lab of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai 200072;
    2. Central Research Institute, Shanghai Electric Group Co., Ltd., Shanghai 200070
  • Received:2017-01-14 Revised:2017-06-29 Online:2018-03-05 Published:2018-03-05

摘要: 非圆轮廓随动接触测量方法研究对实现曲轴、凸轮轴等复杂轴类零件高精度、高效率检测具有重要意义,针对复杂轴类零件非圆轮廓表面检测设计了一套接触式随动测量方案。借助头尾架环规建立工件坐标系,提出了回转中心与顶尖几何中心相对位置关系标定方法,建立了随动接触测量装置沿工件轴线方向运动时与回转轴线不平行引起的系统误差计算模型。利用凸轮基圆区域的转角与径向尺寸进行基圆最小二乘圆心位置寻优,以实现凸轮偏心修正,采用敏感点法与最小二乘法相结合的方式构建了凸轮升程误差评价模型。仿真分析了随动接触测量装置安装误差与顶尖几何中心标定误差对凸轮升程误差评定的影响。与ADCOLE 1200SH专用量仪的对比试验和重复性测量试验研究表明:SE13-J10型轴类零件随动接触测量机的凸轮尺寸、形位误差测量精度和重复精度满足轴类零件高精度测量需求,验证了接触式随动测量方案与凸轮误差评价模型的正确性。

关键词: 非圆轮廓, 偏心修正, 随动接触测量, 凸轮升程误差

Abstract: Research on tracing measurement method for non-circular contour plays an important role in the realization of high-precision and high-efficiency detection for crankshaft, camshaft and other complex shafts. Tracing measurement scheme is designed for detection of complex shafts non-circular contour surface. After setting workpiece coordinate by head and tail ring gauge, relative position calibration method between the rotation center and the top center is proposed. The system error calculation model of the measuring device is established which is not parallel to the rotation axis when moving along the axis of the workpiece. The position of the base circle least square center is optimized to realize cam eccentricity correction based on the rotation angle and radial dimension of the base circle area. Cam lift error evaluation model is established with combination of sensitive point method and least-square method. The influence on cam lift error evaluation with radial measurement device installation error and top center positioning error are studied by simulation. Contrast test is conducted between SE13-J10 tracing measuring instrument and ADCOLE 1200SH crankshaft camshaft special measuring instrument. The experimental research shows that the cam size, shape and error measurement accuracy and repeatability meet the high precision measurement requirements of the shaft parts. It is proved that the correctness of tracing measurement scheme and the cam lift error evaluation model.

Key words: cam lift error, eccentricity correction, non-circular contour, tracing measurement

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