机械5

端盖冲压成形工艺与模具设计 摘要：本设计主要对端盖的冲裁工艺性和拉深工艺性进行了分析，通过分析工件结构、使用要求、零件质量等制定了几种工艺方案，经过几种方案的优缺点比较，最后确定使用落料冲孔拉深复合模。本次设计首先确定了拉深次数，通过拉深次数来确定工艺方案，根据材料利用率来确定排样方式，通过冲压力计算选定压力机。对模具工作部分尺寸进行计算，模具主要零部件设计（如凸凹模、拉深凸模、凸模固定板、卸料方式、送料方式等）和模具整体设计来选定模架，对压力机和模具闭合高度进行校核，最后绘制模具总装图。模具的设计应当效率高、安全、可靠，模具零件应耐磨耐用。 关键词：复合模压力机拉深模具 END COVER STAMPING FORMING TECHNOLOGY AND DIE DESIGN Abstract: this desig
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ng mold 目录 1绪论1 1.1国内模具的现状和发展趋势1 1.2国外模具的现状和发展趋势2 2零件的工艺性分析3 2.1工艺性分析3 2.1.1．工件结构分析3 2.1.2．材料分析3 2.1.3．尺寸精度分析4 2.2工艺方案确定4 2.2.1拉深次数确定4 2.2.2工艺方案的确定5 2.3排样设计5 3主要工艺计算9 3.1.冲裁力计算9 3.2卸料力计算9 3.3拉深力计算9 3.4冲孔力计算10 3.5推件力计算10 3.6压边力计算11 3.7总压力计算11 3.8压力中心计算11 3.9初选压力机12 4凸、凹模刃口尺寸计算14 4.1落料凸、凹模刃口尺寸计算14 4.2冲孔凸、凹模刃口尺寸计算15 4.3拉深凸、凹模尺寸计算15 4.4拉深凸、凹模圆角半径计算16 5模具整体设计18 5.1模架的选择18 5.2定位装置设计18 5.3卸料装置设计18 5.4送料方式设计19 5.5导向装置设计19 5.6打料装置设计19 5.7推件装置设计20 6主要零部件设计21 6.1落料凹模结构设计21 6.2上凸凹模结构设计22 6.3下凸凹模结构设计23 6.4冲孔凸模计算23 6.5模柄选用23 6.6弹性元件设计24 6.7模架选用25 6.8压力机高度校核25 总结28 致谢29 参考文献30