后支架零件冲压模具设计毕业论文.doc

1摘要：模具是现代工业生产中应用广泛的优质、高效、低耗、适应性很强的生产技术或称成型工具、成型工装产品，是技术含量高、附加值高、使用广泛的新技术产品，是价值很高的社会财富。本课题的主要任务是后支架零件冲压模具设计。因为是纺机上的重要部件，精度要求比较高。采取的工艺方案是先落料冲孔复合冲压，然后再弯曲，采用复合模生产。设计的过程是：首先进行工艺方案的论证和各种参数的计算，确定模具各主要部件的结构和尺寸，进行刃口尺寸的计算和相关件的强度校核；查阅相关书籍，选取模具的标准零件；然后根据计算的参数绘制模具装配图和非标零件图，再撰写说明书。关键词：复合冲压，复合模，弯曲，模具设计AfterstentpartsstampingmoulddesignAbscract:Moldisamodernindustrialproductionofawiderangeofhigh-quality,high-efficiency,lowconsumptionandstrongadaptabilityoftheproductiontechnology,ormoldingtools,PrototypingToolproducts,hightechnologicalcontentandhighaddedvalue,thewideruseofnewtechnologyproducts,isthehighvalueofsocialwealth.ThemaintaskoftheissueisTextileMachinerySwingstampingprocessanddiedesign.Astheimportantcomponents,textileneedshighprecision.Theprogramisthefirstofblanking-punchingcompositepunch,thenbendingmoduluscompositeproduction.Thedesignprocess:First,theprogramfortheverificationprocessandthevariousparameters,Dieidentifythemajorcomponentsofthestructureandsize,CuttingEdgeforthecalculationofthesizeandintensityoftherelevantpiecesofthecheck；Accesstotherelevantbooks,ToDiestandardcomponents；Thencalculatedtheentriesdrawndieassemblyandnon-standardcomponentsmap,Furtherwrittenstatement.Keyword:Stampingcompound，Compound，DieBending，MoldDesignSignatureofSupervisor:目录1绪论···················································································11.1背景····························································································11.2冷冲模成型的特点···········································································21.2.1冲裁模·····················································································31.2.2弯曲模·····················································································41.2.3拉深模·····················································································51.2.4多工位级进模···········································································61.3冷冲模具的发展趋势········································································61.4本文主要研究内容···········································································82工艺方案的选择···································································92.1零件的工艺性分析············································································92.2模具的结构形式············································································102.2.1冲裁力和弯曲力的计算·····························································112.2.2卸料力、推件力和顶件力的计算················································122.3制定冲压的工艺卡·······································································133冲压模具设计·····································································143.1排样····························································································143.2模具压力中心的确定······································································153.3压力机的选择···············································································163.4模具主要零部件的设计···································································163.4.1冲孔凸模的结构设计·······························································173.4.2凸凹模的结构设计···································································203.5冲压模具标准件的选择···································································213.5.1模架的选择············································································213.5.2挡料销···················································································233.5.3卸料装置···············································································233.5.4推件装置···············································································243.5.5导向零件设计与标准·······························································253.5.6模柄的选用············································································253.5.7凸模固定板与垫板···································································263.5.8冲压模具的结构图···································································28结论·······················································································29参考文献················································································30致谢·······················································································31附录A32