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T形垫片冲压成型工艺及模具设计【冲孔、落料复合模】 摘要：本设计的题目为垫片冲压成形工艺及模具设计的设计,体现了薄板类冲裁零件的要求、内容及方向，有一定的设计意义。通过对该零件模具的设计，进一步加强了本人冲压模设计的基础知识，为设计更复杂的冲压模具做好了铺垫和吸取更深刻的经验。 本设计运用冲压成形工艺及模具设计的基础知识，首先分析了冲裁件的冲压工艺性，为确定冲裁工艺方案做好了准备；然后计算冲裁力和模具刃口尺寸，便于选取压力机及确定工作零件的尺寸和结构；最后分析了制件的特征，确定模具的设计参数、设计要点及推件装置的选龋 本冲裁件上孔为非规则形状的孔,为了便于冲孔凸模的加工，所以在设计时把冲孔凸模设计成直通式,然后,将其铆接在凸模固定板上。此外,该制件的尺寸较大,为保证凹模的加工精度,在设计时应将其设计成凹模组件。为了方便制件的取出，本副模具采用倒装结构形式,同时,为了简化模具结构采用弹性推件装置。 关键词：冲压模倒装复合凹模组件弹性推件 Gasket stampi
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ng 目录 1绪论………………………………………………………………………………1 1.1国内模具的现状和发展趋势………………………………………………1 1.1.1国内模具的现状………………………………………………………1 1.1.2国内模具的发展趋势…………………………………………………2 1.2国外模具的现状和发展趋势………………………………………………3 1.3垫片模具设计与制造方面…………………………………………………3 1.3.1垫片模具设计的设计思路……………………………………………3 1.3.2垫片冲压模具设计的进度………………………………………………4 2垫片的冲压工艺性分析…………………………………………………………5 2.1垫片件工艺分析……………………………………………………………5 3冲压工艺方案的确定……………………………………………………………7 4必要的工艺计算…………………………………………………………………8 4.1排样的设计…………………………………………………………………8 4.2计算凸、凹模刃口尺寸……………………………………………………9 4.2.1冲孔凸、凹模刃口尺寸计算…………………………………………9 4.2.2外形落料凸、凹模刃口尺寸计算…………………………………10 4.3冲压力的计算………………………………………………………………11 4.3.1落料力的计算…………………………………………………………11 4.3.2冲孔力的计算…………………………………………………………11 4.3.3推件力计算……………………………………………………………12 4.3.4卸料力的计算…………………………………………………………12 4.4压力中心的计算……………………………………………………………13 4.5冲压设备的选择……………………………………………………………14 5模具总体设计……………………………………………………………………15 6主要工作部分尺寸计算…………………………………………………………16 6.1凸模、凹模、凸凹模的结构…………………………………………………16 6.1.1落料凸模、凹模的结构设计…………………………………………16 6.1.2冲孔凸模设计………………………………………………………16 6.1.3凸凹模的结构设计…………………………………………………16 6.2卸料弹簧的设计……………………………………………………………18 6.3模架的设计…………………………………………………………………19 7模具的总装图…………………………………………………………………21 7.1冲裁模的总装图……………………………………………………………21 8结束语…………………………………………………………………………23 致谢…………………………………………………………………………………25 参考文献……………………………………………………………………………26