There are two factors that can affect the positioning accuracy, one is dimension and its deviation of positioning device, the other is manufacture error of previous procedure and dimension of workpiece positioning benchmark.
影响定位精度的干扰因素可分为两大类,一类是定位装置本身的有关定位尺寸及其偏差;另一类是被加工工件的定位基准的有关尺寸及其前道工序的制造误差。
参考来源 - 精密宝石加工装备中的专用夹具设计及性能优化研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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