目前国内许多兄弟厂在筐形保持架冲窗孔工序中,其定位孔大多数采用“三等分”的形式,也有少数厂采用三角形或方形定位孔,以此做定位带动保持架转动,从而达到冲压保持架等分窗孔的目的。 我厂过去一直采用三等分孔做定位孔(图1a),借助于三等分传动小轴(图2),带动保持架转动,进行冲窗孔(图1b)。此类模具结构比较复杂,加工困难,使用调整 At present, many domestic brothers in the basket-shaped cage Chong hole process, the majority of its positioning hole using the “three equal” form, there are a few plants using triangular or square positioning holes, in order to do positioning to drive cage rotation, which Achieve stamping cage equal sub-window purposes. I plant in the past has been used to make three hole hole positioning hole (Figure 1a), with the help of three equally-powered small axis (Figure 2), driven cage rotation, Chong hole (Figure 1b). Such mold structure is more complex, processing difficulties, the use of adjustment