我厂对产品Y38-1滚齿机的“刀架垂直移动与工作台回转同步精度”问题,进行了一次专题攻关。按GB2493-78标准规定,周期误差不大于0.01mm,累积误差在275mm行程上不大于0.024mm,在攻关前普遍数据为:周期误差0.018mm,累积误差0.05mm。经过攻关后普遍数据为;周期误差0.004～0.008mm, I plant on the product Y38-1 gear hobbing machine “turret vertical movement and table rotation synchronous precision” issue, conducted a special topic. According to GB2493-78 standard, the cycle error is not more than 0.01mm, the accumulated error is less than 0.024mm on the 275mm stroke. The common data before the tackling is: cycle error 0.018mm, cumulative error 0.05mm. After the tackling of the common data; cycle error of 0.004 ~ 0.008mm,