蜗轮滚刀价格昂贵,寿命短,即使把旧滚刀用于粗加工,也还需再制作新刀,这对蜗轮的加工批量很小、规格繁多的机修部门,会使工具费用增多。我们采用滚刀轴向窜动的方法,用废旧滚刀精加工蜗轮,取得一定的效果。蜗轮滚刀正常磨损报废的主要原因是,由于重磨后刀齿在分度圆柱面上的齿厚减小到所允许的数值以下。而滚刀轴向窜动的方法,正相当于使刀齿增厚。为保证齿形的对称性,我们采取正反方向的对称移动。具体操作过程 Worm hobs are expensive and have a short life expectancy. Even if the old hob is used for roughing, new tools need to be made. This is because the processing volume of the worm wheel is small and the mechanical department of various specifications will increase the cost of the tool. We use the method of axial movement of the hob, using the hobbing hob to finish the worm wheel and achieve a certain result. Worm hob hobbing wear and tear the main reason for the normal wear and tear is due to grinding teeth after the tooth surface in the graduation cylinder to reduce the thickness below the allowable value. The hob axial movement method, is equivalent to the knife teeth thickening. To ensure the symmetry of the tooth shape, we take a positive and negative direction of the symmetrical movement. Specific operation