CNC齿轮测量中心上盘形凸轮测量方法研究  

Measurement of Cam in CNC Measuring Center

作　　者：李彦帅[1] 李平[1] 

机构地区：[1]西安工业大学机械与电子工程学院,陕西西安710032

出　　处：《机械工程与自动化》2007年第3期102-103,106,共3页Mechanical Engineering & Automation

摘　　要：研究了直接在CNC齿轮测量中心上检测凸轮并评定误差的方法和理论。在凸轮工件型面上直接采集测量数据,用三次样条插值函数拟合测头中心轨迹,通过测头半径补偿和凸轮从动轮数据转换,得到凸轮升程曲线,运用最小条件法评价凸轮升程误差。此方法具有测量过程简便、测量效率高、计算精度高、应用性广等优点,适用于以CNC齿轮测量中心为检测设备的自动加工系统。The measurement and error evaluation of cams in CNC measuring center is researched in this paper. The testing data are collected by sampling along a camprofile. The trace curve of the center of the probe is fitted with cubic-spline. The trace curve is converted to the lifting curve of the cam by radius compensation of the probe and the follower wheel of the cam. The lifting range error of the cam is evaluated in least condition method. The method has virtue of easy and efficient measuring, high calculating precision and wide spread applicability. It is applicable to auto-machining system with testing equipment of CNC.

关 键 词：凸轮 测量 升程误差 CNC齿轮测量中心 

分 类 号：TH132.47[机械工程—机械制造及自动化]