垫片模具级进模设计

学校代码：10410序号：20091077本科毕业设计题目：垫片冲压模设计学院：工学院姓名：陈力立学号：20091077专业：机械设计制造及其自动化年级：机制092指导教师：胡淑芬二O一三年五月摘要模具是现代工业生产中重要的工艺装备之一。在铸造、锻造、冲压、塑料、橡胶、玻璃、粉末冶金、陶瓷等生产行业中得到广泛应用。近年来，我国的模具工业也有了较大的发展，模具制造工艺和生产装备智能化程度越来越高，极大地提高了模具制造的精度、质量和生产率。本设计是垫片的冷冲压模具设计，利用的是级进模生产的。级进模，又称为多工位级进模、连续模、跳步模，它是在一副模具内，按所加工的工作分为若干等距离的工位，在每个工位设置一个或几个基本冲压工序，来完成冲压工作某部分的加工。被加工材料，事先加工成一定宽度的条料，采用某种送进方法，每次送进一个步距。经逐个工位冲制后，便得到一个完整的冲压工件。在一副级进模中，可以连续完成冲裁、弯曲、拉深、成形等工序。一般来说，无论冲压零件形状怎么复杂，冲压工序怎样多，均可用一副级进模冲成完成。本设计重点是在分析冲裁变形过程及冲裁件质量影响因素的基础上，主要介绍冲裁件的工艺性分析、确定冲裁工艺方案、选择模具的结构形式、进行必要的工艺计算、选择与确定模具的主要零部件的结构与尺寸、校核模具闭合高度及压力机有关参数、绘制模具总装图及零件图都是这次设计的主要内容。本次设计不仅让我熟悉了课本所学的知识，而且我做了把所学到的知识运用到实践当中，更让我了解了级进模设计的全过程和加工实践的各种要点。关键词：垫片级进模冷冲压ThepadstampsforminghandicraftanddesignfordieAbstract:ThemodisoneofthemostimportantTechnologyandEquipmentinmodernindustry.It’sbeenwidelyusedincasting,forging,stampingplastic,rubber,glass,powdermetallurgy,ceramicsetc.Inrecentyears,dieindustrygetslargerdevelopment.diemanufacturingprocessandthemoreintelligentlevelofproductionequipmentimprovetheaccuracy,qualityandproductivitygreatly.Thegraduationprojectisprogressivediedesign.Inapairofmod,accordingtotheprocessoftheworkisdividedintoanumberofequaldistancetothestation,setupthebasicstampingoneorseveralstepsineachstation,tocompletetheprocessingofapartofthestampingwork..Materialstobeprocessed,previouslyprocessedintostripwidth,afeedingmethod,eachinonestep.Eachstationbypunching,stampingworkpiecewillbeacomplete.Inaprogressivedie,blanking,bendingcanbecontinuouslycompleted,drawing,formingprocess.Ingeneral,nomatterhowcomplexshapestampingpartsandstampingprocessare,it’scanmakebyaprogressivedie.Thisdesignfocusontheanalysisofblankingdeformationprocessandimpactfactorsbasedonqualityofblankingpieces,mainintroductionandanalysisoftheblankingprocess,determiningtheplanofstampingprocess,selectionofdiestructure,calculationthenecessaryprocess,selectionanddeterminationthestructureandsizeofthemaincomponentsofthemod,checkingthemoldheightandpressparameters,drawingdieassemblydrawingsandpartdrawingsarethemaincontentofthisdesign.Thisdesignnotonlyletmeknowthetextbookknowledge,puttheknowledgeintopractice,butalsoletmeunderstandthevariouspointsofthewholeprocessandprocessingpracticeofprogressivediedesign.Keywords:Pieceningprogressivediecoldstamping目录1绪论...........................................................................................................................11.2冲压基本工序、模具.......................................................................................11.3冲压技术的现状及发展方向...........................................................................22工艺分析.................................................................................................................23确定零件冲裁的工艺方案................................................................................34模具结构的确定...................................................................................................34.1操作方式的选择..............................................................................................34.2定位方式的选择..............................................................................................34.3卸料方式的选择..............................................................................................35工艺计算.................................................................................................................35.1排料图的设计..................................................................................................35.2冲压力的计算..................................................................................................55.3压力中心的计算..............................................................................................65.4模具工作尺寸计算..........................................................................................76主要零件设计........................................................................................................86.1整体式凹模轮廓尺寸的确定..........................................................................86.2凸模固定板的设计..........................................................................................96.3卸料板外形尺寸的确定..................................................................................96.4导料板的确定................................................................................................106.5垫板的确定....................................................................................................106.6橡胶的选用....................................................................................................116.7凸模外形尺寸的设计与形状的选择............................................................116.8上、下模座的设计........................................................................................136.9模柄的选择....................................................................................................136.10导柱、导套的设计......................................................................................136.11螺钉、销钉的选择......................................................................................146.12导正销、挡料销、始用挡料销的设计...................