我厂在X62W铣床上加工拖拉机的五种花键轴。在生产实践中,我们设计制成了一种中心夹头(见图),对铣削花键轴比较适用。经过几年来的使用,情况良好。它具有结构简单,制造容易,工件(花键轴)装卸方便和夹紧可靠等优点。这种夹头一端是莫氏4号锥柄,装在分度头上,另一端是顶尖和夹套。使 I plant in X62W milling machine processing five kinds of tractor spline shaft. In production practice, we designed a centering chuck (see photo), which is suitable for milling spline shafts. After several years of use, the situation is good. It has the advantages of simple structure, easy manufacture, easy loading and unloading of the workpiece (spline shaft) and reliable clamping. One end of this chuck is Morse taper shank No. 4, mounted on the indexing head, the other end is the top and jacket. Make