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保持架冲压模具设计 摘要：本设计题目为保持架前半部分设计，落料拉深冲孔复合模设计，体现了拉深件冲压零件的设计要求、内容及方向，有一定的设计意义。通过对该零件的模具设计，进一步加强了我的冲压模具设计的基础知识，为设计更复杂的冲压件做好了铺垫和吸取了更深刻的经验 本设计运用冲压成型工艺及模具设计的基础知识，首先分析了该零件的材料和各方面的要求和拉深原理分析、拉深工艺方案的选择、冲孔和落料工艺方案的选择、模具结构设计计算为冲压工艺做好了准备；查资料材料的各力学性能，便于选取压力机，计算了各主要工作零件的尺寸，查资料选取的各零件的选用和安装方法。 本制件与其他拉深件不同，工序复杂，在这我做的是落料、拉深、冲预孔工序。冲压该零件时，普遍采用落料、拉深、冲孔、三道工序，生产效率低，成本也高。为此设计了该零件的落料、拉深、冲孔复合模具，是原三道工序合为一，大大提高了生产效率。 关键词：模具拉深冲孔 Stampi
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ng 目录 1绪论……………………………………………………………1 1.1冲压模具的分类………………………………………………………1 1.2冲压模具零件的分类…………………………………………………2 1.3本课题主要研究的内容及意义………………………………………3 1.4保持架模具设计的设计思路…………………………………………4 2保持架冲压工艺分析…………………………………5 2.1保持架的工艺性分析………………………………………………5 2.2拉深工艺计算和工艺方案…………………………………………6 2.2.1保持架工艺方案的确定…………………………………………………7 2.2.2计算毛坯尺寸………………………………………………………………7 2.2.3冲预孔尺寸计算…………………………………………………………9 2.2.4排样………………………………………………………………………10 2.2.5工序压力计算……………………………………………………………10 2.2.6落料韧口尺寸计算………………………………………………………12 2.2.7韧口尺寸计算……………………………………………………………13 3复合模具主要零件……………………………………14 3.1复合模具主要零件设计……………………………………………14 3.1.1凹凸模设计……………………………………………………………14 3.1.2凸凹模设计…………………………………………………………14 3.1.3落料凹模设计………………………………………………………15 3.1.4模柄的选用…………………………………………………………15 3.1.5固定板的设计……………………………………………………………15 3.2压力中心计算及压力机的选用…………………………………………17 4模具装配和具体要求………………………………19 4.1模具装配……………………………………………………………19 4.2冲压模具具体要求…………………………………………………19 4.3落料拉深复合模具装配特点………………………………………20 4.4复合模具零部件尺寸………………………………………………20 4.5复合模具总装配…………………………………………………21 4.6模具运动过程…………………………………………………………21 4.7模具的调试要点…………………………………………………22 4.8调整方法…………………………………………………………23 5结束语……………………………………………………25 致谢……………………………………………………………26 参考文献…………………………………………………………27