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我厂在加工冶金行业辊子零件系列时,辊子零件的外圆对轴承位形位公差要求比较严格,粗糙度为R_a=0.8,车床半精加工后,再上外圆磨床加工外圆及轴承位。磨床装夹,起初我们用如图1所示的死堵头。方法是用手锤将锥度为1∶100堵头打入两端孔内,然后装夹在磨头和尾座两顶尖之间,用鸡心夹带动工件旋转磨削加工。敲打拆装死堵头很不方便。堵头外圆与辊子孔是线接触,容易损坏堵头工作面,丧失精度,所以在批量生产中要经常更换堵头。根据这种情
I plant in the processing of the metallurgical industry roller parts series, roller parts of the cylindrical shape of the bearing tolerance requirements more stringent, the roughness of R_a = 0.8, lathe semi-finishing, and then cylindrical grinding machine cylindrical and bearing bits . Grinder fixture, at first we use the dead plug shown in Figure 1. Method is to hammer the taper 1: 100 plug into the two ends of the hole, and then installed in the grinding head and the tailstock between the two top, with the heart to bring the workpiece rotation of the grinding wheel rotation grinding. Beat disassembly dead plug is not convenient. Plug the outer circle with the roller hole is line contact, easy to damage the plug face, loss of accuracy, so in mass production to replace the plug. According to this situation