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图1所示为我厂生产的防尘圈,材料是08钢,该零件是烧结车轴承的主要防护元件。为节省加工工序,我们设计了一副双向同时拉深及切边的模具,现介绍如下。 一、坯料展开尺寸的确定 在有关设计资料中只介绍了旋转体零件坯料直径的计算公式。我们根据制件面轵和坯料面积与加上切边余量的拉深面积相等的原则计算该零件的毛料直径。从零件图中f_1处看出φ111是零件内孔,因是先拉深后
Figure 1 shows the dust ring produced by our factory, the material is 08 steel, the parts are the main protective components of sintered car bearings. To save processing steps, we designed a two-way at the same time drawing and trimming die, are presented below. First, the blank to determine the size of the expansion in the design information only describes the rotating body parts blank diameter formula. We calculate the wool diameter of the part based on the principle that the surface area of the workpiece and the area of the blank are the same as the area of the drawing with the margin of the margin. From the parts figure f_1 see φ111 parts hole, because after the first deep drawing