用普通车床加工轴销、小套及薄垫等工件时，方工架上一般装两把车刀，来回转动方刀架换刀，效率不高方刀架重复定位精度差，容易造成工件尺寸误差。按图4．螺母5．支架6．方头螺钉所示做一套反刀架，装在方刀架右前方位置，形成方刀架和反刀架上可各装一把车刀，这样就不用来回 With ordinary lathe machining of pins, jacquard and thin pad and other workpieces, the square workers generally installed two turning tools, turning back and forth side knife tool changer, the efficiency is not high side knife positioning accuracy is poor, likely to cause the workpiece size error. According to Figure 4. Nut 5. Bracket 6. The square head screws do a set of anti-knife frame, installed in the square knife frame right front position, the formation of square knife frame and anti-knife frame can be equipped with a turning tool, so do not have to roundtrip