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端盖落料拉深冲孔复合模设计毕业论文.doc端盖落料拉深冲孔复合模设计毕业论文.doc

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编号:201311191351594012    类型:共享资源    大小:836.87KB    格式:DOC    上传时间:2013-11-19
  
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1端盖落料拉深冲孔复合模学院、系:机械工程学院7摘要随着中国工业不断地发展,模具行业也显得越来越重要。本文针对端盖的冲裁工艺性和拉深工艺性,分析比较了成形过程的三种不同冲压工艺(单工序、复合工序和连续工序),确定用一幅复合模完成落料、拉深和冲孔的工序过程。介绍了端盖冷冲压成形过程,经过对端盖的批量生产、零件质量、零件结构以及使用要求的分析、研究,按照不降低使用性能为前提,将其确定为冲压件,用冲压方法完成零件的加工,且简要分析了坯料形状、尺寸,排样、裁板方案,拉深次数,冲压工序性质、数目和顺序的确定。进行了工艺力、压力中心、模具工作部分尺寸及公差的计算,并设计出模具。还具体分析了模具的主要零部件(如凸凹模、卸料装置、拉深凸模、垫板、凸模固定板等)的设计与制造,冲压设备的选用,凸凹模间隙调整和编制一个重要零件的加工工艺过程。列出了模具所需零件的详细清单,并给出了合理的装配图。通过充分利用现代模具制造技术对传统机械零件进行结构改进、优化设计、优化工艺方法能大幅度提高生产效率,这种方法对类似产品具有一定的借鉴作用。关键词:端盖;模具设计;复合模;拉深冲孔8ABSTRACTWithChina'sindustriescontinuetodevelopanddieindustryisalsobecomingincreasinglyimportant.BasedontheCoverofthestampingprocessandthedeepdrawingprocess,Comparativeanalysisoftheprocessofformingthreedifferentstampingprocess(singleprocesses,complexprocessesandcontinuousprocesses)confirmcompletionofacompositemodelblanking,drawingprocessesandpunchingprocess.Onthecoverofthecoldstampingprocess,rightaftertheCoverofthemassproduction,qualitycomponents,andtheuseofstructuralcomponentsoftheanalysis,research,inlinewithlowerperformanceprerequisitetotheidentificationofstampings,Stampingmethodusedtocompletetheprocessingcomponents,andabriefanalysisoftheblankshape,size,layout,theConferenceBoard,thenumberofDrawing,stampingprocessesinnature,numberandsequencedetermination.Fortheprocess,thecenterofpressure,thediesizeandthetoleranceofthecalculation,designmold.Alsoanalyzesthemoldofthemaincomponents(suchaspunchanddieanddumpdevices,drawingpunch,slates,Punchplate,etc.)designandmanufacturing,stampingequipmentselection,punch-gapadjustmentandestablishmentofavitalpartsmachiningprocess.Dierequirementssetoutadetailedlistofparts,andgivesareasonableassembly.Byfullyutilizingmodernmanufacturingtechnologytomoldtraditionalmechanicalpartsforstructuralimprovements,designoptimization,Processoptimizationmethodscangreatlyenhanceproductionefficiency,themethodofsimilarproductshavesomereference.Keywords:Cover;Molddesign;Compositemolding;DrawingPunch主要符号表IX目录1分析零件的工艺性·································································12确定工艺方案·······································································22.1计算毛坯尺寸··················································································22.2确定是否要压边圈···········································································32.3计算拉深次数·················································································32.4确定工艺方案·················································································43主要工艺参数的计算······························································53.1确定排样、裁板方案·······································································53.2计算工艺力、初选设备····································································63.2.1计算工艺力··············································································6(1)落料力·····················································································6(2)冲孔力·····················································································7(3)推件力·····················································································7(4)拉深力·····················································································7(5)压边力·····················································································83.2.2拉深功的计算···········································································93.2.3初选压力机··············································································93.2.4计算压力中心··········································································103.2.5计算凸、凹模刃口尺寸及公差·····················································104模具的结构设计···································································124.1模具结构形式的选择······································································124.1.1模架的选用·············································································124.1.2模具的闭合高度·······································································134.2模具工作部分尺寸计算···································································134.2.1落料凹模·················································································134.2.2拉深凸模·················································································144.2.3凸凹模····················································································154.2.4弹压御料板·············································································164.2.5上垫板····················································································18
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