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离合器膜片弹簧冲压工艺与模具设计目录摘要..........................................................................................................................................................IAbstract......................................................................................................................................................1第一章绪论...........................................................................................................................................21.1冲压模具的现状与发展趋势.....................................................................................................21.1.1我国模具技术的现状.....................................................................................................21.1.2未来冲压模具制造技术发展趋势.................................................................................31.2课题研究的理论依据.................................................................................................................51.3课题的国内外研究状况.............................................................................................................51.4课题研究的主要内容.................................................................................................................6第二章冲压成型工艺分析和工艺方案的确定....................................................................................72.1冲压的基本工序分类及模具类型的选择................................................................................72.2冲模设计与制造的程序..........................................................................................................82.3冲压工艺编制与冲模设计的步骤和内容................................................................................82.3.1冲压工艺编制................................................................................................................82.3.2冲模设计........................................................................................................................92.3.3冲模制造工艺的选择...................................................................................................112.4设计任务..................................................................................................................................112.5工件的工艺分析.......................................................................................................................112.6工艺方案的确定.......................................................................................................................122.7模具结构方案的确定...............................................................................................................142.8小结..........................................................................................................................................14第三章落料冲孔模工艺计算及模具结构设计....................................................................................143.1排样设计与计算.......................................................................................................................143.2冲裁力计算.............................................................................................................................153.3压力机选择..............................................................................................................................163.3.1冲压设备的选择原则...................................................................................................163.3.2选择压力机及压力机参数...........................................................................................163.4确定模具压力中心..................................................................................................................173.5凸、凹模刃口尺寸计算...........................................................................................................173.5.1刃口尺寸计算的一般原则...........................................................................................173.5.2刃口尺寸计算方法.......................................................................................................183.5.3落料-冲孔模刃口尺寸的计算.....................................................................................183.6确定凹模外形尺寸,选择标准...............................................................................................193.7冲模结构设计...........................................................................................................................203.7.1装配图...........................................................................................................................203.7.2模具结构型式分析.......................................................................................................203.7.3模具主要零部件的结构和设计...................................................................................213.7.4模具的工作过程...........................................................................................................223.8小结..........................................................................................................................................23第四章冲槽模工艺计算及模具结构设计............................................................................................234.1冲裁力计算..............................................................................................................................234.2压力机选择..............................................................................................................................244.2.1冲压设备的选择原则...................................................................................................244.2.2选择压力机及压力机参数...........................................................................................244.3确定模具压力中心..................................................................................................................244.4凸、凹模刃口尺寸计算..........................................................................................................254.4.1刃口尺寸计算的一般原则...........................................................................................254.4.2刃口尺寸计算方法.......................................................................................................254.5确定凹模外形尺寸,选择标准..............................................................................................264.6冲模结构设计...........................................................................................................................264.6.1装配图...........................................................................................................................264.6.2模具结构型式分析.......................................................................................................274.6.3模具主要零部件的结构和设计...................................................................................274.6.4模具的工作过程...........................................................................................................284.7小结...........................................................................................................................................29第五章冲压模具工件的机械加工........................................................................................................295.1冲压工作零件的技术要求.......................................................................................................295.2冲模工作零件的热处理...........................................................................................................295.3冲模工作零件机械加工工艺过程...........................................................................................305.3.1凸模加工工艺工程.......................................................................................................305.3.2凹模加工工艺过程.......................................................................................................305.4小结...........................................................................................................................................30第六章模具装配....................................................................................................................................316.1冲模装配...................................................................................................................................316.2冲模的安装...............................................................................................................................326.3小结...........................................................................................................................................33第七章结论............................................................................................................................................33参考文献..................................................................................................................................................34致谢..........................................................................................................................................................35摘要本文的课题是膜片弹簧的冲压工艺及模具设计,进行了落料—冲孔复合模及冲槽单工序模两套模具的设计。文中简要概述了选题的目的、意义、冲压件国内外现状和模具市场发展趋势。对产品进行了详细工艺分析和工艺方案的确定。因制件形状比较复杂,为保证制件平整、制件上各个空、槽的位置精度及凸凹模强度,冲压工艺分析后采用隔位冲压。按照冲压模具设计的一般步骤,计算并设计了这两套模具上的主要零部件。落料—冲孔复合模采用四导柱标准模架,冲槽模采用中间导柱圆形标准模架并选用了合适的冲压设备。此外,最后达到设计的模具冲压工艺方案合理,模具结构型式正确。保证了工件上孔和外形的相对位置的准确性,提高了加工精度。如此设计出的结构可确保模具工作运行可靠和冲压产品大批量生产的要求。关键词:膜片弹簧;落料-冲孔复合模;单工序冲槽模;隔位冲压。AbstractThisarticleissubjecttothediaphragmprocessandstampingdiedesign,theblanking-punchingcompositemodulusandjumpingovertwosetsofsingle-modeprocessesmolddesign.Thispaperbrieflyoutlinedthetopicsofpurpose,meaning,StampingDiesathomeandabroadstatusandmarkettrends.Theproductofadetailedanalysisandtheidentificationprocess.Productsformorecomplexshapes,inordertoguaranteethecomponentformedcomponentinallair,tankandthelocationaccuracyofpunchanddiestrength,Analysisofstampingprocesseverytwospacesafterstamping.Stampingdiedesigninaccordancewiththegeneralstepsofthedesignandcalculationofthesetwosetsofthemainmoldparts.Blanking-punchingcompositemodulususingfourguided-standardmold,Notchingintermediatemodulususingderivative-roundstandardmoldandselecttheappropriatestampingequipment.Inaddition,theultimatedesignofdiestampingprocessisreasonable,correctstructuraltypemold.Guaranteetheworkpieceandtheshapeoftheholesintherelativepositionofaccuracy,improvetheprocessingaccuracy.Sothestructureisdesignedtoensurereliableoperationofdiestampingproductsandmassproductionrequirements.Keywords:Diaphragm;Blanking-punchingcompounddie;Single-slotmoduleprocesses;Stampingseparatedspaces。第一章绪论1.1冲压模具的现状与发展趋势1.1.1我国模具技术的现状改革开放以来,随着国民经济的高速发展,市场对模具的需求量不断增长。近年来,模具工业一直以15%左右的增长速度快速发展,模具工业企业的所有制成分也发生了巨大变化,除了国有专业模具厂外,集体、合资、独资和私营也得到了快速发展。浙江宁波和黄岩地区的“模具之乡”;广东一些大集团公司和迅速崛起的乡镇企业,科龙、美的、康佳等集团纷纷建立了自己的模具制造中心;中外合资和外商独资的模具企业现已有几千家。[1]随着与国际接轨的脚步不断加快,市场竞争的日益加剧,人们已经越来越认识到产品质量、成本和新产品的开发能力的重要性。而模具制造是整个链条中最基础的要素之一,模具制造技术现已成为衡量一个国家制造业水平高低的重要标志,并在很大程度上决定企业的生存空间。近年许多模具企业加大了用于技术进步的投资力度,将技术进步视为企业发展的重要动力。一些国内模具企业已普及了二维CAD,并陆续开始使用UG、Pro/Engineer、I-DEAS、Euclid-IS等国际通用软件,个别厂家还引进了Moldflow、C-Flow、DYNAFORM、Optris和MAGMASOFT等CAE软件,并成功应用于冲压模的设计中。以汽车覆盖件模具为代表的大型冲压模具的制造技术已取得很大进步,东风汽车公司模具厂、一汽模具中心等模具厂家已能生产部分轿车覆盖件模具。此外,许多研究机构和大专院校开展模具技术的研究和开发。经过多年的努力,在模具CAD/CAE/CAM技术方面取得了显著进步;在提高模具质量和缩短模具设计制造周期等方面做出了贡献。例如,吉林大学汽车覆盖件成型技术所独立研制的汽车覆盖件冲压成型分析KMAS软件,华中理工大学模具技术国家重点实验室开发的注塑模、汽车覆盖件模具和级进模CAD/CAE/CAM软件,上海交通大学模具CAD国家工程研究中心开发的冷冲模和精冲研究中心开发的冷冲模和精冲模CAD软件等在国内模具行业拥有不少的用户。虽然中国模具工业在过去十多年中取得了令人瞩目的发展,但许多方面与工业发达国家相比仍有较大的差距。例如,精密加工设备在模具加工设备中的比重比较低;CAD/CAE/CAM技术的普及率不高;许多先进的模具技术应用不够广泛等等,致使相当一部分大型、精密、复杂和长寿命模具依赖进口。[5]我国的模具工业的发展,日益受到人们的重视和关注。“模具是工业生产的基础