水管三通管注塑模具设计说明书.doc

本科毕业设计（论文）三通管注塑模具设计年级:2003级学号:姓名:专业:机械电子指导老师:2007年6月2摘要在目前激烈的市场竞争中，产品投入市场的迟早往往是成败的关键。模具是高质量、高效率的产品生产工具，模具开发周期占整个产品开发周期的主要部分。因此，如何在保证质量、控制成本的前提下缩短模具开发周期是值得认真考虑的问题。模具开发周期包括模具设计、制造、装配与试模等阶段。所阶段出现的问题都会对整个开发周期都有直接的影响，但有些因素的作用是根本的、全局性的。人的因素及设计质量就是这样的因素。缩短设计周期并提高设计质量是缩短整个模具开发周期的关键之一。模块化设计就是利用产品零部件在结构及功能上的相似性，而实现产品的标准化与组合化。大量实践表明，模块化设计能有效减少产品设计时间并提高设计质量。因此本文探索在模具设计中运用模块化设计方法。某些模具零件（如凸凹模）的形状和尺寸由产品决定因而无法在模块设计时预见到，所以只能按常见形状设计模块（如圆形或矩形的冲头）,适用面窄；某些模具零件（如冲压模的工件定位零件）虽然互相配合执行某一功能，但它们的空间布置难寻规律与共性，因此即使按功能划分也不能产生模块。本文介绍了注射模具的特点及发展趋势，叙述了三通管注射模具设计与计算的详细过程，介绍了该塑件成型工艺、注射模具的结构特点与工作过程,阐述了在有斜滑块抽芯的注射模设计中应注意的事项关键词：三通管注射模；斜滑块；侧抽芯3AbstractLaunchinganewproductintimeisthekeytosuccessinthecurrentfiercemarketcompetition.Moldasthetoolwhichisusedtoensurethehigh-qualityandhigh-efficiencyproduction,itsdevelopmentcircletakesupthemainpartoftheentiredevelopmentcircleoftheproduct.Thus,itisnecessarytoconsiderhowtoshortentheentiredevelopmentcircleofmodelonthepremisethatthequalitycanbeensuredandthecostcanbecut.Thedevelopmentofmodelincludesdesigning,producing,assemblingandexaminingstepsetc.theproblemswhichappearineverystepcaninfluencethewholedevelopingprocessdirectly.Therearemanyfactorsinfluencethedevelopmentprocess,someoftheminfluenceitradically,entirely,suchasthedesignerandthequalityofdesign.Shorteningtheperiodandenhancingthequalityofdesignarethekeystoshortentoentiredevelopmentcircleofmodel.Modulardesignreferstoutilizethesimilarityinconstructionandfunctionbetweenthecomponentstoachievethestandardizationandassibilationofproducts.Practicesshowthatmodulardesignisaneffectivewaytoreducethetimeandenhancethequalityofproducts.Thispapermainlyexploresthemethodofapplyingthemodulardesigninmodeldesign.Shapeandsizeofsomemodelspares,suchasconvexandcavemoldaredecidedbycertainproduct,astheresult,theycannotbeforesawinthemodelpiecedesign,peopleonlycandesignthemodelaccordingtothecommonshapessuchasthebluntheadofcircularorrectangle.Meanwhile,althoughsomemodelsparessuchasbluntpressthefixedpositionsparecanworkincoordinationtocarryoutcertainfunction,itishardtofindtheregulationandsimilarityintheirspacesarrangement,soitalsocannotproduceamodelpieceevenaccordingtotheirfunction.Thecharacteristicsanddevelopmentsofinjectionmouldwillbeintroducedinthispaper.Thedesigningandcalculatingofinjectionmouldofmicrophonewillbestatedindetail.Theformingprocessoftheproductandthestructurecharacteristicsaswellasworkingprocessoftheinjectionmouldwillbeintroduced.Theattentionshouldbepaidinthedesignoftheinjectionmouldforthepartwithliftersalsowillbestated.Keywords:microphone,injectionmould；lifter；corepulling4目录一塑件工艺性分析-7二计算塑件的体和质