用坐标变换计算“一面两孔”的定位误差

Using coordinate transfer to calculate the positioning error in “One Feature and Two Spans”

用坐变换的方法对工件一面两孔定位时的定位误差进行了合理地分析计算 ,给出了定位误差对工序尺寸的函数关系式。

The positioning error in “One Feature and Tow Spans” of a workpiece is analysed and calculated:the function equation of positioning error and process demension is given.