我厂铣翻斗车半轴花键的原工艺如下:用两把尖齿槽铣刀铣出花键槽两侧面;再用另一把尖齿槽铣刀铣花键槽底部;然后在外圆磨床上磨花键外圆;最后由钳工倒花键齿棱边0.4×45°。该工艺由钳工倒花键齿棱边,既费工时(单件20分钟),又增加工人劳动强度;另由于锉刀易碰伤已磨花键外圆,所以外圆7光洁度难以保证。为此,我们设计了专用花键倒角刀(见图1左、右),在铣削花键槽底部时,与尖齿槽铣刀组合在一起 I mill dumpers semi-shaft spline of the original process is as follows: with two sharp tooth groove cutter milling both sides of the spline groove; then use another sharp groove cutter milling spline groove bottom; then grinding on a cylindrical grinder Spline cylindrical; Finally by the locksmith inverted spline teeth edge 0.4 × 45 °. The process by the fitter inverted spline teeth edge, both the working hours (single 20 minutes), but also increase the labor intensity; the other due to bruising the file has been grinding spline cylindrical, so smooth finish 7 is difficult to guarantee. To this end, we designed a special spline chamfering cutter (see Figure 1, left and right), in the bottom of the spline groove milling, combined with a tipped slot cutter