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减少定位误差的方法 不论是对新设计的还是对现正使用的自动线来说,减少定位误差对工件被加工表面位置精度的影响,都是十分重要的。一面两销的定位方式,在使用伸缩定位销的情况下,可通过如下基本途径来减少工件在工位上的定位误差。为了在定位时减轻基准孔的损坏以及为了能在加工终了前保持住基准孔的初始尺寸,必须按基轴制的配合而不是按A配合加工基准孔,以便稍微扩大一些与定位销的最小配合间隙。
Methods to Reduce Positioning Errors It is important to reduce the impact of misalignments on the machined surface’s position accuracy for new designs or for the automated lines being used. One side of the two pin positioning, the use of retractable positioning pin case, through the following basic ways to reduce the workpiece positioning error in the workplace. In order to reduce the damage of the reference hole during positioning and to maintain the initial dimensions of the reference hole before the end of machining, it is necessary to press the base shaft instead of the machining reference hole to press A to slightly expand some of the minimum engagement with the dowel gap.