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毕业设计说明书题目：U型支架冲压工艺分析及模具设计学生姓名：郭皓学号：1000406011指导教师：李戬、郭彦宏专业年级：材料成型及控制工程2010级材成（1）班所在学院和系：机械工程学院完成日期：2014年06月03日答辩日期：2014年06月14日摘要U型支架冲压工艺分析及模具设计摘要冲压成型是金属成型的一种重要方法，它主要适用于材质较软的金属成型，可以一次成型形状复杂的精密制件。本课题就是将石化、化工、电力等行业的法兰密封结构中的垫片作为设计模型，将冷冲模具的相关知识作为依据，阐述冷冲模具的设计过程。本设计对指定工件进行的级进模设计，利用AutoCAD软件对制件进行设计绘图。明确了设计思路，确定了冲压成型工艺过程并对各个具体部分进行了详细的计算和校核。如此设计出的结构可确保模具工作运用可靠，保证了与其他部件的配合。并绘制了模具的装配图和零件图。本课题通过对工件的冲压模具设计，巩固和深化了所学知识，取得了比较满意的效果，达到了预期的设计意图。关键词：释放键，级进模，弯曲，冲孔青海大学本科毕业设计说明书：U型支架冲压工艺分析及模具设计ABSTRACTANALYSISOFBRACKETSTMPINGPROCESSANDDIEDESIGNOFUTYPEABSTRACTStampingisanimportantmethodofmetalforming,itismainlyappliedtorelativelysoftmetalforming,canbeamoldingofprecisionpartsofcomplexshape.Thistopicistopetrochemical,chemical,electricpowerindustriesintheflangegasketsealingstructureasadesignmodel,DierelatedknowledgeasabasistoexplainthedesignprocessofDie.Thedesignofthesuspensionbytheprogressivediedesign,theuseofAutoCADsoftwaretodesignpartsdrawing.Cleardesignideas,determinetheprocessofstampingandformingpartofthevariousspecificdetailsofthecalculationandverification.Thestructureofsuchadesigndieisusedtoensurereliability,ensurecoordinationwithothercomponents.Andthemappingofthemoldassemblyandpartdrawings.Suspensionoftheprojectthroughthestampingdiedesign,consolidateanddeepentheknowledge,andachievedsatisfactoryresults,toachievethedesireddesignintent.KEYWORDS：thereleasebutton,progressivedie,bend,punching青海大学本科毕业设计说明书：U型支架冲压工艺分析及模具设计目录目录1绪论....................................................................................................................................................11.1模具行业的发展现状及市场前景..........................................................................................11.2冲压工艺介绍..........................................................................................................................11.3冲压工艺的种类......................................................................................................................12工艺分析.............................................................................................................................................12.1工件材料...................................................................................................................................32.2工件结构形状...........................................................................................................................32.3工件尺寸精度...........................................................................................................................43加工工艺方案确定.............................................................................................................................53.1各类模具结构及特点比较......................................................................................................54确定模具总体结构方案......................................................................................................................74.1模具类型..................................................................................................................................74.2操作与定位方式.......................................................................................................................74.3卸料与出件方式.......................................................................................................................74.4模架类型与精度......................................................................................................................74.5导向形式的确定......................................................................................................................75弯曲件尺寸、排样形式和材料利用率计算.....................................................................................85.1弯曲件展开尺寸的计算..........................................................................................................85.2排样方式的选择......................................................................................................................85.3搭边值的确定..........................................................................................................................95.4送料步距与条料宽度计算......................................................................................................95.5计算材料的利用率...................................................................................................................96冲裁力、弯曲力、压件力、压力机的选择和压力中心的确定.....................................................116.1冲裁力的计算.........................................................................................................................116.2弯曲力的计算..........................................................................................................................116.3卸料力与推件力的确定.........................................................................................................126.3.1卸料力..........................................................................................................................126.3.2推件力..........................................................................................................................126.3.3压