自由曲面类零件数字化检测技术  

The digital inspection technology of free form surface part

作　　者：褚国民[1] 费仁元[1] 韩景芸[1] 李彦生[1] 

机构地区：[1]北京工业大学机械工程与应用电子技术学院,100022

出　　处：《现代制造工程》2004年第10期66-68,共3页Modern Manufacturing Engineering

摘　　要：自由曲面类零件因其形状不规则使得传统测量工具难以对其制造误差进行精确检测。利用坐标测量机将零件表面数字化,获得零件的“数据形状”,再通过坐标转换或数据配准方法确定“数据形状”与零件的“模型形状”的共同基准,最后基于共同基准实现测量数据与零件数学模型(CAD模型)的误差分析。The application of complex free form surface part is more and more abroad in recent years. But the error inspection of its manufacture is very hard for its nonregular shape. Firstly,the 'data shape'of the part was obtained through the digitization with the coordinates measurement device. Then the common coordinates datum was established through the coordinates transform method or data registration method. Finally the error inspection result between the measure data and the CAD model was evaluated based on the common coordinates datum.

关 键 词：自由曲面 数字化 误差检测 

分 类 号：TH7[机械工程—仪器科学与技术]