批量加工2～6、8、10、12等分工件,用分度头直接分度效率低,易出错。所以我们对分度头的传动进行了调整。将分度头的蜗轮副脱开,使分度头主轴z_4与侧轴z_1用配换齿轮连接,完成分度传动(图1)。分度前在分度头固定分度盘螺孔内安装弹簧2和钢球3,作为定位装置(图2)。分度盘4外圆需钻出与钢球3半径相同的凹坑,以便使分度盘定位。操作时首先将分度头蜗轮副脱开,将分度手柄上的定位销插入分度盘孔 Batch processing 2 ~ 6,8,10,12 equal parts, sub-indexing with direct indexing inefficient, error-prone. So we adjusted the transmission of the index head. Divide the worm gear of indexing head to make the indexing head spindle z_4 and side shaft z_1 connect with gear changing gear to complete indexing drive (Figure 1). Before indexing, install the spring 2 and ball 3 in the screw hole of the indexing head fixed indexing screw as a positioning device (Figure 2). The outer circle of the indexing disc 4 needs to drill the same pit as the radius of the steel ball 3 in order to position the indexing disc. Operation first divider worm gear off, the indexing handle on the positioning pin into the index plate hole