覆盖件汽车车门内板的成形

江苏大学学士学位论文I覆盖件汽车车门内板的成形摘要冲压模具是机械制造业中技术先进、影响深远的重要工艺装备，具有生产效率高、材料利用率高、制件质量优良、工艺适应性好等特点,被广泛应用于汽车、机械、航天、航空、轻工、电子、电器、仪表等行业。本课题选用典型的汽车覆盖件——车门内板，并对其进行冲压成形工艺方案设计。首先对零件进行结构分析，确定零件尺寸，并在CAD中画出其三维示意图，然后进一步对其进行冲压工艺性分析，确定其成形难点，在保证产品质量的前提下，不断完善确定最佳工艺方案。零件冲压工艺确定后，接着对其进行模具设计。模具设计是重中之重，每一付模具都必须经过精确计算，包括拉深力、压边力等。模具设计必须先设计好凸、凹模，凸、凹模的设计对零件的最终成形尤为重要，必须先充分计算其尺寸，然后在CAD中画出其三维示意图及二维尺寸图。接着要设计模架，选择导柱、导套，并确定模座尺寸，最后设计其它模具工作零件，包括卸料板、固定板、螺钉、定位销、挡料板等，并一一确定尺寸，画出相应实体图及尺寸图。最后根据所设计的结构尺寸在CAD中画出模具总装图。此外，为了提高模具的使用寿命，模具零件的选材也同样重要，先确定模具工作零件的选材，再设计出合适的热处理工艺。关键词：车门内板冲压成形模具设计热处理Formingofinsidethedoorplateofautomobilecoveringparts江苏大学学士学位论文IIAbstractMouldisanimportantcraftequipment,whichisanadvancedtechnologyinthemechanicalmanufacturingindustry,withhighefficiency,highmaterialutilization,productqualityandprocessgoodadaptability.Itiswidelyusedinautomobiles,machinery,aerospace,aviation,lightindustry,electronics,electricalappliances,instrumentationandotherindustries.Throughreadingthebooks,searchingonline,referencetosimilarpartsformingprocess,formingcharacteristicsofdifferentprocessesforartifacts,thispaperformulatecorrespondingreasonableworkingprocedure,andeffectivecombination,astoreducethecostofthemouldmanufacturingcycle,andimprovetheproducingefficiency.Atthesametime,theuseofAutoCADdrawingpartsandmould2dfigureand3ddrawing,simpleandquick,andaccuratesize,easytocalculate,inqualityassuranceatthesametime,greatlyshortenedthemoulddesigningcycle.Thistopicselectsthetypicalautomobilecoveringparts—aninsidethedoorplate,andcarriesthedesignofonthestampingformingprocess,involvingtheprocessesofcommonblanking,deepdrawing,punchingprocess.Duringthisperiod,throughextensiveaccesstobooks,thispaperhascarriedouttheadequatetheoryanalysisandcalculation.Onthepremiseofguaranteethequalityofproducts,optimizetheprocesscombination,andconstantlyimprovetheoptimumprocessscheme,sothatitcangreatlyimprovetheproductionefficiencyinpractice.Thistellsusinthetechnologyselectionanddiedesigntoflexibleapplication,givefullconsiderationtovariousfactorsinthepracticalapplicationof,notonlyhasthequalityofourproductsandalsoconsidertheproductioncost,productionefficiency,todesignthemostsuitableformingprocessfordifferentparts.Keywords:insidethedoorplatestampingdiedesignheattreatment江苏大学学士学位论文III目录第一章绪论.....................................................11.1汽车覆盖件的特点..........................................................................................................11.1.1汽车覆盖件的结构特点.......................................................................................11.1.2汽车覆盖件的质量要求.......................................................................................11.1.3汽车覆盖件的成形特点.......................................................................................11.2汽车覆盖件工艺设计要点..............................................................................................21.3国内外汽车冲压模具技术的发展..................................................................................31.3.1技术发展现状.......................................................................................................31.3.2产业发展思路.......................................................................................................5第二章汽车车门内板的工艺分析及工艺方案选取......................62.1汽车车门内板的结构分析及成工艺性分析..................................................................62.2汽车车门内板工艺方案的确定......................................................................................7第三章汽车车门内板落料模的设计..................................93.1毛坯计算及理论分析......................................................................................................93.1.1毛坯的计算...........................................................................................................93.1.2排样及材料利用率...............................................................................................93.1.3毛坯压力中心的计算.........................................................................................103.2冲裁力的计算及压力机的选取....................................................................................113.3汽车车门内板落料模工作零件的设计........................................................................113.3.1凸、凹模的设计.................................................................................................113.3.2模架与导向零件的设计.....................................................................................143.3.3导料板、定位销、卸料螺钉的设计.................................................................163.3.4卸料板的设计.....................................................................................................163.4汽车车门内板落料模总装图........................................................................................173.5汽车车门内板落料模具零件选材及热处理................................................................19第四章汽车车门内板拉深模的设计.................................204.1理论计算及压力机的选择.............................................................................................20江苏大学学士学位论文IV4.1.1拉深力的计算.....................................................................................................204.1.2压边力的计算..............