用万能分度头加工等分数零件,常使用复式分度法来分度,由于复式分度法计算较繁锁,精度不高,需要跳齿分度,影响了推广使用。现介绍一种用电子计算器计算,配合“小数与分数对照表”,来选取复式分度手柄转数的简便方法,可得到满意的效果。此疗法的优点是: 1.精度高,以分圆为φ1时的周节累计误差,一 With a universal indexing head machining parts such as fractional, often use the sub-indexing method to indexing, the complex indexing method more complicated, the accuracy is not high, need to jump tooth indexing, affecting the promotion and use. Now introduced a calculation with an electronic calculator, with the “decimal and fractional table” to select the rotation speed of the multi-division indexing a simple method to get satisfactory results. The advantages of this therapy are: 1. High precision, the cumulative error of the week when the circle is φ1,