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连接器壳体注塑模具设计论文[带图纸].doc

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连接器壳体注塑模具设计论文[带图纸].doc

本科毕业设计论文题目连接器壳体塑料注塑模具设计系别机电信息系专业机械设计制造及其自动化班级学生学号指导老师2013年5月I连接器壳体塑料注塑模具设计摘要本文是关于连接器壳体塑料注塑模具的设计,通过正确分析塑件工艺特点和ABS材料的性能后,最终设计出一副注塑模。塑料制品具有原料来源丰富,价格低廉,性能优良等特点。它在电脑、手机、汽车、电机、电器、仪器仪表、家电和通讯产品制造中具有不可替代的作用,应用极其广泛。注射成形是成形热塑件的主要方法,因此应用范围很广。注射成形是把塑料原料放入料筒中经过加热熔化,使之成为高黏度的流体,用柱塞或螺杆作为加压工具,使熔体通过喷嘴以较高压力注入模具的型腔中,经过冷却、凝固阶段,而后从模具中脱出,成为塑料制品。本文详细介绍了模具的浇注系统、模具成型部分结构、顶出系统、冷却系统、注塑机的选择及有关参数的校核等等设计。运用CAD、辅助工程PRO/E等不同的软件分别对模具的设计、制造和产品质量进行分析。连接器壳体塑料注塑模具设计,采用一般精度,利用CAD、PRO/E来设计或分析注射模的成型零部件,浇注系统,导向部件和脱模机构等等。针对连接器的具体结构,该模具采用点浇口双分型面注射模具。由于塑件内侧有小孔,需要设置斜导柱。通过模具设计表明该模具能达到连接器的质量和加工工艺要求。综合运用了专业基础、专业课知识设计,其核心知识是塑料成型模具、材料成型技术基础、机械设计、塑料成型工艺、模具CAD\CAM等。关键词连接器壳体注塑模具CADPRO/EIITheconnectorshellplasticinjectionmolddesignAbstractThisarticleisabouttheconnectorshellplasticinjectionmolddesign,throughthetechnologicalcharacteristicsofplasticsarticleofcorrectanalysisandtheperformanceofABSmaterial,thefinaldesignoutapairofinjectionmold.Plasticproductshaverichrawmaterialsources,lowprice,goodperformance,etc.Itincomputers,cellphones,cars,motors,electricalappliances,instrumentsandmeters,householdappliancesandcommunicationsproductsmanufacturinghasirreplaceablefunction,iswidelyapplied.Injectionmoldingisthemainmethodofformingthermoplasticparts,sotheapplicationrangeisverywide.Injectionmoldingismelttheplasticrawmaterialintothecylinderthroughtheheating,madeofhighviscosityfluid,pressurizedwithpistonorscrewasatool,makesthemeltthroughthenozzleathighpressureintomoldcavity,aftercoolingandsolidificationstage,andthenoutofthemould,plasticproducts.Mouldgatingsystemareintroducedindetailinthispaper,thestructureofthemoldingpart,ejectorsystem,coolingsystem,selectionofinjectionmoldingmachineandrelatedparametersofchecking,etc.Design.UsingPRO/ECAD,auxiliaryengineeringsuchasdifferentsoftwarerespectivelytothemolddesign,manufacturingandproductqualityareanalyzed.Connectorshellplasticinjectionmolddesign,usingthegeneralaccuracyandtheuseofCAD,PRO/Etodesignoranalysisofformingpartsofinjectionmould,pouringsystem,guidepartsanddemouldingmechanism,andsoon.Accordingtothespecificstructureoftheconnector,themouldadoptsthepointgatedoublepartingsurfaceinjectionmould.Becausethereareholesplasticpartsinside,needtosetuptheinclinedguidepillar.Throughthemolddesignshowsthatthemouldcanachieveconnectorqualityandprocessingtechnology.Integrateduseoftheprofessionalbasis,professionalclassknowledgeisdesigned,itscoreknowledgeistheplasticmoldingmold,materialmoldingtechnologybase,mechanicaldesign,plasticmoldingprocess,mouldCAD/CAM,etc.KeywordstheconnectorshellInjectionmouldCADPRO/EIII目录1绪论.........................................................................................................11.1前言......................................................................................................................11.2模具发展现状及发展方向..................................................................................11.2.1国内外注塑模具的发展现状........................................................................11.2.2国内外注塑模具的发展趋向........................................................................31.3本课题的内容和具体要求..................................................................................31.3.1本课题的内容................................................................................................31.3.2具体要求........................................................................................................32零件材料分析及方案论证....................................................................42.1零件的材料及材料的特性..................................................................................42.1.1零件的材料....................................................................................................42.1.2ABS材料的特点...........................................................................................42.1.3ABS注射成型工艺参数...............................................................................52.2ABS注射成型的原理及工艺过程.....................................................................52.2.1注射成型的原理............................................................................................52.3注射模具的基本组成..........................................................................................62.3.1基本组成........................................................................................................63注射成型机的选择与成型腔数的确定................................................73.1注射成型机的选择..............................................................................................73.1.1估算零件体积................................................................................................73.1.2估算零件的质量............................................................................................83.2锁模力..................................................................................................................83.3选择注射机型号及注射机的主要参数..............................................................83.3.1注塑成型工艺简介注塑机的初步选择........................................................83.3.2注塑成型工艺条件........................................................................................93.3.3注塑机的初步选择......................................................................................103.3.4XSZY125型注塑机的主要参数如下......................................................103.4注塑机的校核....................................................................................................103.5成型腔数的确定................................................................................................124浇注系统的设计..................................................................................134.1浇注系统的作用................................................................................................134.2浇注系统的组成................................................................................................13IV4.3主流道设计........................................................................................................134.4分流道设计........................................................................................................154.5浇口设计............................................................................................................165成型零件结构设计..............................................................................175.1分型面的设计....................................................................................................175.1.1分型面选择原则.........................................................................................175.2型腔的分布........................................................................................................175.3凹模的结构设计................................................................................................175.4凸模的结构设计................................................................................................175.5成型零件工作尺寸的计算................................................................................185.5.1影响塑件尺寸精度的因素..........................................................................185.5.2模具成型零件的工作尺寸计算..................................................................185.6动模板的强度校核............................................................................................195.6.1厚度计算......................................................................................................196导向与脱模机构的设计......................................................................206.1导向机构的作用和设计原则............................................................................206.1.1导向机构的作用..........................................................................................206.1.2导向机构的设计原则..................................................................................206.2导柱、导套的设计............................................................................................206.2.1导柱的设计..................................................................................................206.2.2导套的设计..................................................................................................216.2.3导向孔的总体布局......................................................................................226.3脱模机构的确定................................................................................................226.4推杆横截面直径的确定与校核........................................................................226.4.1推杆横截面直径的确定..............................................................................226.4.2推杆横截面直径的校核..............................................................................226.4.3顶杆的形式..................................................................................................236.5复位杆的结构设计............................................................................................246.5.1复位杆的作用..............................................................................................246.5.2的结构..........................................................................................................246.6锁紧块................................................................................................................246.6.1锁紧块的作用..............................................................................................246.6.2锁紧块的设计..............................................................................................256.6.3锁紧块的结构形式......................................................................................25

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