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机制专业毕业设计1冲压模具毕业设计摘要模具生产的工艺水平及科技含量的高低，已成为衡量一个国家科技与产品制造水平的重要标志，它在很大程度上决定着产品的质量、效益、新产品的开发能力，决定着一个国家制造业的国际竞争力，因此这次我们的设计要求设计一个模具以便检验自己所学模具有关方面的知识是否牢固。在这次设计中根据所给题目的要求，我首先对冲压件进行了分析，分析该零件的尺寸精度得出用一般精度的模具即可满足零件精度的要求，再从零件的形状、尺寸标注及生产批量等情况看，我选择了以下方案。根据对零件的综合分析，在本人这次设计中我设计的模具是落料模，主要介绍的是模具的冲裁，冲压生产中应用最广泛的工序之一。材料为30钢板，厚度t=0.3mm。传统的加工方法为落料。我的加工方法比较简单。由于材料和厚度的原因，我采用的加工方法为：采用单工序落料模进行加工。关键词：落料模；冲裁；冲压模具机制专业毕业设计2StampingmouldgraduationdesignAbstractMouldmanufacturingtechnologylevelandthecontentofscienceandtechnology,hasbecomeanationalscienceandtechnologyandproductmanufacturelevelofimportantsymbol,itlargelydeterminesthequalityofproductsandthebenefit,thenewproductdevelopmentcapabilities,acountrydependsontheinternationalcompetitivenessofmanufacturing,therefore,wedesignamolddesignrequirementstotesttheirknowledgeaboutwhethertheknowledgeofmould.Inthisdesignaccordingtothetopicrequest,Iwasthefirsttostampingisanalyzed,theanalysisofthecomponentsofthedimensionprecisionmouldwithgeneralaccuracythatcanmeettheaccuracyrequirementofthepartsfromtheshapeoftheparts,andtheproductionbatch,dimensions,asIchosethefollowingsolutions.Basedonthecomprehensiveanalysisoftheparts,inthedesignofmyIdesign,moldisdroppingmaterialismainlyintroducesthecutting,stampingmouldmanufacturingprocessesinoneofthemostwidelyused.Materialsfor30plates,thicknesst=0.3mm.Thetraditionalprocessingmethodforblanking.Iprocessingmethodissimple.Duetomaterialandthicknessofreason,Iusedforprocessingmethods:theprocedureblankingprocessmode.Keywords:blanking,Cutting,Stampingmould机制专业毕业设计3目录1.前言.............................................................................................................................................51.1模具在现代化工业生产中的地位和作用............................................................51.2我国的模具工业状况.................................................................................................71.3模具工业技术的发展趋势.......................................................................................92.工艺方案分析及确定.........................................................................................................112.1工件简图.....................................................................................................................112.2零件的工艺分析........................................................................................................112.2.1冲裁件的工艺性............................................................................................112.2.2冲裁件的尺寸精度与断面粗糙度............................................................122.2.3排样...................................................................................................................122.2.4计算冲裁件的面积Ａ...................................................................................122.2.5材料的利用率.................................................................................................132.3工艺方案的确定........................................................................................................133.冲裁方式与冲压力的计算..................................................................................................133.1冲裁工艺力的计算....................................................................................................133.1.1冲裁力的计算.................................................................................................143.1.2卸料力、推件力和顶件力的计算............................................................143.2公称压力的确定........................................................................................................153.3压力中心的计算........................................................................................................154.确定模具类型及总体结构方案......................................................................................165.计算凸、凹模刃口尺寸及公差的计算...........................................................................185.1凸、凹刃口尺寸计算的依据和原则...................................................................185.1.1尺寸计算原则.................................................................................................185.1.2尺寸计算的依据...........................................................................................195.2凸、凹模刃口尺寸计算方法.................................................................................196.卸料弹簧的设计计算...........................................................................................................217.模具零部件的结构设计......................................................................................................227.1凸模的设计..................................................................................................................227.1.1凸模的结构及固定........................................................................................227.1.2凸模长度的计算...........................................................................................237.1.3凸模材料及其他要求..................................................................................237.1.4凸模的强度与刚度的校核.........................................................................247.2凹模的设计...........................