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图1为我厂电机生产中所用的挡油圈,材料为普通碳素结构钢,厚度1.5mm。其中内孔和电机转轴相配合,要求精度较高。由于所需数量较大,按照一般加工工艺,效率低。为此,需设计新的高效率模具,满足生产发展需要。一、产品零件工艺分析 1.按照通常加工工艺,采用先落料冲孔,再拉延成形,至少需用两付模具。且内孔由于在拉延成形时材料的流动而扩大,冲孔落料时需予先留下变形余
Figure 1 for our plant used in the production of oil retaining ring, the material for ordinary carbon structural steel, the thickness of 1.5mm. One hole and the motor shaft match, requiring higher accuracy. Due to the large number of required, according to the general processing technology, low efficiency. To this end, the need to design new high-efficiency mold to meet production needs. First, the product parts process analysis 1 in accordance with the usual processing technology, the first blanking punching, and then drawing forming, at least two pairs of molds to be used. And the inner hole due to the flow of material in the drawing process to expand, blanking blanking blame left to be left over