在回转盘上加工等分工件时,往往遇到不能整分的情况,如22,23,28,44,58……等等,每等分之间的夹角都带有“分”,“秒”,用回转盘的刻度分很费劲,且分不准,误差大,工效低。我们针对加工电机冲片复式模时经常遇到的这种情况,对回转盘进行了改装,根据分度头的原理,把回转手柄的刻度盘卸下,换上分度板,即可进行整分分度。因回转盘的蜗杆蜗轮的速比是1:90,此时分度计算公式是 In the rotary plate processing equal parts, often encounter the situation can not be an entire point, such as 22,23,28,44,58 ... ... and so on, each of the included angle with “points”, “ Seconds ”, with the scale of the turntable points very hard, and points are not allowed, the error is large, low efficiency. We are often faced for the processing of motor punch film die of this situation, the rotary disc has been modified, according to the principle of sub-head, the rotary handle dial removed, put on the index plate, you can whole Sub-degree. Because the turntable worm gear ratio is 1:90, then the formula is calculated