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近年来机械加工生产率有明显提高,但是带螺纹零件的加工效率却很难提高,日本最近研制成一种高效高精度的内外螺纹加工方法——切入加工法。多刃大直径母模或螺纹状砂轮的轴线与工件轴线互相平行,两轴强制用同一转速旋转,一边旋转,两轴一边移近,从而达到规定的螺纹深度。母模(砂轮)与工件的螺距要一致,当两者螺纹方向相同时,转向相
In recent years, machining productivity has improved significantly, but the processing efficiency of the threaded parts is difficult to improve, Japan recently developed into a highly efficient high-precision machining of internal and external thread - into the processing method. The axis of the multi-blade large-diameter female die or threaded grinding wheel is parallel to the axis of the workpiece. The two axes are forcibly rotated at the same rotational speed and rotated while the two axes are moved closer to each other to reach a predetermined thread depth. Master (grinding wheel) and the workpiece pitch to be the same, when the two threads in the same direction, the steering phase