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加工梯形长螺母(长度在350毫米以上),一直是较困难的。主要原因是刀杆较长,加工时让刀产生锥度,表面粗糙度及精度不易达到标准要求。许多人曾作过多种尝试,都未曾有满意的结果。为了解决这一问题,本文介绍了通过实践而设计出的一种比较实用的梯形螺母加工方法。一、加工内孔用的刀具和主轴支撑套根据工件较长及车床主轴内锥为莫氏六号内锥等条件,设计出了长杆刀具和主轴支撑套。刀具的刀杆材料用45~#钢热处理调质而成,它要求有一定的刚度和抗冲击性能。
It has always been more difficult to machine trapezoidal long nuts (over 350mm in length). The main reason is the longer arbor, knife taper processing, surface roughness and accuracy is not easy to meet the standard requirements. Many people have tried many times, and none of them have had satisfactory results. In order to solve this problem, this paper introduces a practical way to design a trapezoidal nut. First, the processing of the hole with the tool and the spindle support sleeve according to the workpiece longer and the inner cone spindle lathe Mok’s cone and other conditions, designed a long rod cutter and spindle support sleeve. Cutter tool material with 45 ~ # steel quenched and tempered made, it requires a certain degree of stiffness and impact resistance.