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毕业设计(论文)-万能手机充电器上翻盖注射模设计及编程(全套图纸) .doc

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毕业设计(论文)-万能手机充电器上翻盖注射模设计及编程(全套图纸) .doc

1西南交通大学峨眉校区机械工程系本科毕业设计姓名XXX学号导师姓名XXX职称工程师专业班级2005级数控2班题目万能手机电池充电器外壳注塑模设计及编程2009年5月22日万能手机充电器上翻盖注射模设计及编程2设计者XXX指导教师XXX摘要本次设计是对旅行用的手机充电器上翻盖的注射模进行了设计研究。该塑件成品的表面质量要求较高,使用寿命较长。顾在设计中选用ABS工程材料,潜伏式浇口以保证起模质量要求。由于塑件的外形轮廓及内部结构较为复杂,因此在该设计中采用一模四腔,对称平衡式布置,型芯型腔大量使用镶嵌件,以减少生产成本,保证塑件制品的加工成型。同时盖的下端面需考虑侧向分型抽芯,这里采用的是斜导柱滑块外侧抽芯,足以保证塑件制品的分型取出。在设计方面,主要进行了注射成形的基本过程、塑件结构分析及材料的选择、拟定模具结构形式、模具材料的选用、模架的选择、排气系统设计、温度调节系统的设计在计算方面,主要进行了注射机型号的选择及相关参数的校核、浇注系统的设计、成型零件设计、侧向分型与抽芯机构设计、温度调节系统的设计在编程方面,选择一个具有代表性的成型零件,如动模座板进行NC编程。该模具结构设计紧凑合理,开合模顺畅,便于加工装配。关键词注射模一模四腔潜伏式浇口斜导柱外侧抽芯。TheUniversalmobilephonechargerontheclamshelldesignofinjectionmoldDesignerWuXiaopingMentorZhangJinAbstractTheinjectionmoldtothetravelwhichthisdesignisusedonthehandsetbatterychargerrenovatestoconductthedesignresearch.Shouldmodelanendproductthesurfacequalityrequesttobehigh,theservicelifeislong.AttendstoselecttheABSengineeringmaterialinthedesign,theambushtyperunnerguaranteesthequalityoftherequirement.Becausemodelstheoutlineandtheinternalstructureiscomplex,thereforeusemoldfourcavitiesinthisdesign,thesymmetricalbalancelikearrangement,thecorediespacemassiveusesmosaicpieces,reducestheproductioncost,guaranteedmodelsaproducttheprocessingformation.Simultaneouslycoversunderendsurfacemustconsiderthelateralminutepullsoutthecore,hereusesistheslantingguidepillarslideflankpullsoutthecore,guaranteedsufficientlymodelsaproducttheminutetotakeout.Intermsofdesign,mainlycarriedoutthebasicprocessofinjectionmolding,structuralanalysisofplasticpartsandmaterialselection,moldstructuretodevelop,moldmaterialselection,thechoiceofmold,exhaustsystemdesign,3thedesignofthetemperatureconditioningsysteminthecalculationof,themainmodelfortheinjectionofchoiceandtherelevantparametersoftheverification,thedesignofgatingsystem,formingpartdesign,thelateralsubtypeandcorepullingmechanismdesign,thedesignofthetemperatureconditioningsystemintheprogramming,thechoiceofarepresentationofthemoldingparts,suchasdynamicprogrammingNCBlockboard.Thismoldstructuraldesigncompactreasonability,opensandclosesthemoldsmoothly,isadvantageousfortheprocessingassembly.Keywordsinjectsthemoldmoldfourcavitiestheambushtyperunnertheslantingguidepillartheflankpullsoutthecore.4目录1注射成形的基本过程............................................................................................................................................11.1注射成形的原理...............................................................................................................................81.2注射成形的工艺过程.......................................................................................................................81.2.1成形前的准备.......................................................................................................................81.2.2注射成形过程.......................................................................................................................81.2.3塑件的后处理.....................................................................................................................91.3注射成形的工艺参数.....................................................................................................................91.3.1温度.....................................................................................................................................101.3.2压力.....................................................................................................................................101.3.3时间.....................................................................................................................................102塑件结构分析及材料的选择...............................................................................................................................122.1分析塑件的成型工艺性..................................................................................................................122.2分析制品的结构、尺寸精度及表面质量.....................................................................................122.3分析制品原材料的工艺性..............................................................................................................122.3.1ABS的基本特性..................................................................................................................122.3.2成形特性.............................................................................................................................132.3.3成形条件.............................................................................................................................132.4塑件建模分析.................................................................................................................................143拟定模具结构形式..............................................................................................................................................153.1分型面位置的确定.........................................................................................................................153.2型腔数量的确定...........................................................................................................................163.2.1塑件尺寸精度.....................................................................................................................163.2.2模具制造成本......................................................................................................................163.2.3注塑成形的生产效益.........................................................................................................163.2.4制造难度.............................................................................................................................163.3型腔的布局.....................................................................................................................................164注射机型号的选择及相关参数的校核.........................................................................................................184.1注射机型号的选择.......................................................................................................................184.1.1.注射量的计算.....................................................................................................................184.1.2塑件和流道凝料在分型面上的投影面积及所需锁模力的计算.....................................184.1.3.选择注射机.......................................................................................................................184.2相关参数的校核.............................................................................................................................194.2.1注射机型腔数的校核..........................................................................................................1954.2.2.注射机最大开模行程与模厚无关时的校核.....................................................................195模具材料的选用..................................................................................................................................................205.1模具材料选用原则.........................................................................................................................205.2注塑模具常用材料.........................................................................................................................205.2.1型腔、型芯类零件.............................................................................................................205.2.2导向类零件.........................................................................................................................205.2.3浇注系统零件.....................................................................................................................205.2.4推出机构和抽芯机构零件.................................................................................................205.2.5模板类零件.........................................................................................................................215.3塑料模具成型零件(型腔、型芯)的选材.................................................................................215.4模板零件的选材.............................................................................................................................215.5浇注系统零件的选材.....................................................................................................................215.6导向零件的选材.............................................................................................................................215.7侧向分型与抽芯机构的选材.........................................................................................................225.9其它零件.........................................................................................................................................225.10该套模具所用材料的性能比较...................................................................................................226浇注系统的设计..................................................................................................................................................236.1主流道设计.....................................................................................................................................236.1.1主流道的作用......................................................................................................................236.1.2主流道设计要点..................................................................................................................236.1.3浇口套的结构形式..............................................................................................................246.1.4浇口套材料及尺寸..............................................................................................................246.1.5定位圈的设计.....................................................................................................................246.1.6主流道凝料体积..................................................................................................................256.2分流道的设计.................................................................................................................................256.2.1分流道的作用.....................................................................................................................256.2.2设计要点.............................................................................................................................256.2.3分流道的形状和截面尺寸..................................................................................................266.2.4分流道长度设计..................................................................................................................206.2.5分流道凝料体积....................................................................................错误未定义书签。6.2.6分流道的表面粗糙度.............................................................................错误未定义书签。6.3浇口的设计.....................................................................................................................................276.3.1浇口的作用.........................................................................................................................276.3.2浇口设计的基本要点..........................................................................................................286.3.3浇口的类型..........................................................................................................................296.3.4浇口尺寸及形状..................................................................................................................296.4冷料穴的设计.................................................................................................................................296.4.1冷料穴..................................................................................................................................2966.5拉料杆设计.....................................................................................................................................306.6排气槽的设计.................................................................................................................................307成型零件设计.....................................................................................................................................................327.1成型零件的结构设计.....................................................................................................................327.1.1凹模......................................................................................................................................327.1.2凸模和型芯.........................................................................................................................327.2成型零件工作尺寸的计算.............................................................................................................327.2.1型腔和型芯工作尺寸的计算..............................................................................................338导向、推出及复位机构的设计..........................................................................................................................298.1导向机构设计.................................................................................................................................298.1.1导向机构的作用..................................................................................................................298.1.2导向结构的总体设计.........................................................................................................298.1.3导柱的设计..........................................................................................................................37d数量及布置..................................................................................................................................378.1.4导套......................................................................................................................................388.2推出机构的设计.............................................................................................................................398.2.1推出机构的分类.................................................................................................................398.2.2脱模推出机构的设计原则.................................................................................................398.2.3塑件的推出机构推杆的设计.............................................................................................408.2.4推出机构的复位..................................................................................................................409侧向分型与抽芯机构设计..................................................................................................................................419.1斜导柱侧向分型与抽芯机构.........................................................................................................419.2侧向抽心机构的设计....................................................................................................................419.3斜导柱抽芯机构的设计................................................................................................................429.4斜导柱直径的计算........................................................................................................................429.5侧向抽心力的计算........................................................................................................................439.6斜导柱的长度计算..........................................................................................................................459.7锁紧楔的设计..................................................................................................................................4510模架的选择.......................................................................................................................................................3910.1型腔强度及支撑板厚度计算........................................................................................................3910.1.1型腔侧壁厚度....................................................................................................................3910.1.2支撑板的厚度....................................................................................................................3910.2模架的确定....................................................................................................................................4710.3各个模板的确定............................................................................................................................4711排气系统设计....................................................................................................................................................49712温度调节系统的设计........................................................................................................................................5012.1冷却水的体积流量计算................................................................................................................5012.2确定冷却管道的直径....................................................................................................................5112.3确定冷却水在管道的流速............................................................................................................5112.4求冷却管道孔壁与冷却水之间的传热系数................................................................................5112.5冷却管道的总传热面积................................................................................................................5112.6求模具上应开设的冷却水孔数....................................................................................................5113模具动作过程...................................................................................................................................................5313.1模具动作过程...............................................................................................................................5314模具的试模与修模............................................................................................................................................5514.1注射机选定....................................................................................................................................5514.2试模用注塑料................................................................................................................................5514.3试模工艺........................................................................................................................................5514.4试模................................................................................................................................................5514.5修模................................................................................................................................................5515NC编程..............................................................................................................................................................49总结.........................................................................................................................................................................51致谢词.....................................................................................................................................................................52参考文献.................................................................................................................................................................53

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