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图1弹簧夹头是我厂2MT6027台式刀具刃磨床的附件。其内径D在φ2H7～φ12H7范围内,且d对AB基准的跳动为0.01,对于D较大者我们首先磨内孔,再用心轴定位磨削外径及锥体,精度一般能够保证;但对内径小于φ6H7时,就无法采用上述方法,原来我们采用淬火后先研内径及两端孔口倒角,然后再以两端倒角定位磨削外径和锥体的方法,这种方法虽然有时也能保证图纸要求,但很不稳定。
Figure 1 collet chuck is my factory 2MT6027 desktop knife grinder attachment. Its diameter D in the range of φ2H7 ~ φ12H7, and d on the AB benchmark beating 0.01, for the larger D we first bore, and then use the mandrel to locate the grinding diameter and cone, the accuracy can generally be guaranteed; The inner diameter of less than φ6H7, you can not use the above method, the original we use the first diameter after quenching and both ends of the chamfer, and then chamfering both ends of the outer diameter and cone positioning method, although this method sometimes But also to ensure the drawing requirements, but very unstable.