密珠芯轴的应用及其精度对被加工零件的影响一般孔定位的套类零件在加工时，常采用间隙配合的端面夹紧心轴，对于精度要求较高的通孔套类零件，可使用锥度较大的锥度心轴进行加工。但对于图１中的零件来说，显然锥度心轴和普通心轴是无法完成的。对于这类零件，我们通常采... Applications and precision of the mandrel mandrel The impact on the processed parts General sets of holes in the positioning of the hole parts in the processing, often with the gap with the end of the clamping mandrel, for the higher accuracy requirements of the through-hole sets of parts, Use a tapered taper mandrel for machining. However, for the part in Figure 1, it is clear that taper mandrels and normal mandrels can not be completed. For such parts, we usually take ...