齿条加工一直是我厂机床大修中的主要难题之一,齿条的周节误差和累积误差达不到图纸及使用要求。有时采用螺距与齿条周节相等的丝杆控制,也很难达到精度要求。尤其在单件生产的修配情况下,这种加工法劳动工时大,很不经济。于是我们革新,在铣 Rack machining has always been one of the major problems in our machine tool overhaul. The error of the rack and the cumulative error of the rack can not reach the drawings and the use requirements. Sometimes the pitch and rack circumference equal to the screw control, it is difficult to meet the accuracy requirements. Especially in the case of repairing a single piece of production, such a processing method is labor-intensive and uneconomical. So we innovate, milling