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工程技术学院毕业设计1目录1前言.......................................................................31.1模具发展的历史......................................................31.2模具发展的现状....................................................31.3模具发展的趋势及前景................................................42模具选材及工艺分析.........................................................52.1模具选材的意义......................................................52.2模具选材的原则......................................................62.3冷冲压模具的选材原则..............................................72.4工艺方案比较及确定................................................83．冲压模具材料的热处理......................................................94.排样方案设计及计算.......................................................104．1展开板长度计算.....................................................104．2排样方案设计.......................................................104．2材料计算...........................................................115.计算冲压力................................................................116确定模具压力中心..........................................................127计算复合模凸凹模刃口尺寸..................................................137.1复合模凸、凹模加工..................................................138复合模凸模、凹模、凸凹模的结构设计........................................148．1复合模凸模尺寸设计.................................................148.2复合模凹模尺寸设计..................................................148.3复合模凸模尺寸设计..................................................158.4凸凹模设计..........................................................159复合模总体设计及主要零部件设计............................................189.1卸料弹簧的设计计算..................................................189.2主要零部件设计计算..................................................1910.弯曲模的设计.............................................................1910.1弯曲件的工艺性.....................................................1910.2弯曲件的材料......................................................1910.3弯曲件的精度.......................................................2010.4弯曲件毛坯尺寸的确定...............................................2010.5弯曲力的计算.......................................................2010.6校正弯曲时的弯曲力.................................................2010.7顶件力或压件力.....................................................2010.8压力机标称压力的确定...............................................2110.9弯曲工序及弯曲模...................................................2111冲压设备的选择...........................................................2211.1压力机类型的选择...................................................2211.2压力机规格的选用...................................................2212结论.....................................................................2413.参考文献.................................................................2414.谢辞.....................................................................25工程技术学院毕业设计2CJX1-9.12交流接触器缓冲板落料模具机械设计制造及其自动化XXX指导老师：XXX摘要：冲压模具在实际工业生产中应用广泛。在传统的工业生产中，工人生产的劳动强度大、劳动量大，严重影响生产效率的提高。随着当今科技的发展，工业生产中的模具的使用已经越来越引起人们的重视，而被大量应用到工业生产中来。冲压模具的自动送料技术也投入到实际生产中，冲压模具可以大大的提高劳动成产率，减轻工人的负担，具有重要的技术进步意义和经济价值。本文对冷冲压技术的分类、特点及发展方向作了简略的概述：论述了冲压零件的成形原理、基本模具结构与运动过程及其设计原理；对典型的冲压件零件进行了设计：大直径三通管冲压复合模设计解决了大直径三通管的加工难题、带有浮动凸凹模的拉伸冲孔复合模设计、适力压边式落料拉伸切边复合模设计、消音器后补碗落料、拉伸、冲孔、翻遍复合模设计、一模两件落料拉伸冲孔翻边复合模设计、环形弯曲件的模具设计、铰链卷圆成形工艺及模具设计、半自动送料切角装置设计、滑板式送料拉伸、冲孔、翻边模设计实现自动送料、长管多孔冲模设计、带凸缘台阶方盒形零件拉伸模和盒行件侧壁小孔翻孔模。冲压模具的设计充分利用了机械压力机的功用特点，在室温的条件下对坯件进行冲压成形，生产效率高，经济效益显著。关键词：冲压、模具、模具设计、冲裁、弯曲、拉伸ABSTRACT：Punchingdiehasbeenwidelyusedintheactualindustrialproduction.Intraditionalindustrialproduction,theworkerworkhard,andtherearetoomuchworks,sotheefficiencyislow.Withthedevelopmentofthescienceandtechnologynowdays,theuseofpunchingdieintheindustialproductiongainmoreattention,andbeusedintheindustrailproductionmoreandmore.Self-actingfeedtechnologyofpunchingdieisalsousedinproduction,punchingdiecouldincreasetheefficienceofproductionandcouldalleviatetheworkburden,soithassignificationmeaningintechnologicprogressandeconomicvalue.Thearticlemainlydiscussedtheclassification,featureandthedevelopmentaldirectionofthepunchingtechnology.Elaboratedthepunchingcomonentsformationprinciple,thebasicdiesstructureandtherateprocessandtheprincipleofdesign;anddesignedsomeconventionalpunchingdie:thedieforbigdiameterthreedirectionpipewhichsolvedtheproblemoftraditionalmaching,thedarwingandpunchingcompounddiewithfloatpunch-matrix,thedrawingandcuttingcompounddieswithunalteredpress,thecompounddieforthebackbowlofthenoisekeeper,thedesignofthecompounddiewhichcouldproducetwoworkpiecesinonepunching,thebendingdieforringshapepart,thebendingdiewhichusedthegemel,automateloadingdieforcutting,thedrawing,punchingandburringcompounddiewithslidingautomatedloading,thepunchingdieforthelongpipewithtworowofhole,thedrawingdieforthesquareboxshapeworkpieceandtheburringdiefortheboxshapeworkpiece.Thepinchingdiesthatutilizedtheffeatureofthenormalpunchshapedtheworkpieceintheroomtemperature,anditsefficiencyandeconnmicsituationisexcellent.KeyWord：punching,die,diedesign,punching,bending,drawing工程技术学院毕业设计31前言1.1模具发展的历史20年代开始，金属制品、玩具和小五金等行业就使用冲床、压机等简易机械设备及模具加工产品的毛坯或某些