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汽车锁扣盖注塑模具设计论文[带图纸].doc

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汽车锁扣盖注塑模具设计论文[带图纸].doc

哈尔滨工业大学华德应用技术学院毕业设计(论文)I汽车锁扣盖注塑模具设计摘要本论文主要围绕汽车锁扣盖注塑模具设计为主要内容。重点设计了两凹槽的斜导柱滑块抽芯机构,从注塑工艺的角度来衡量模具的设计是合理,能保证塑料件的顺利脱模。首先对塑件工艺进行分析,主要分析了塑件的结构、成型条件以及塑件精度,其次对注射机进行选择和型腔数目的计算,然后对模具机构进行了设计,主要包括浇注系统的设计、成型零部件的设计、侧抽芯机构的设计、推出机构的设计和冷却系统的设计,最后对模具进行了总体设计,主要有模架的选择以及模具的装配。关键词注射模锁扣盖斜导柱成型零件哈尔滨工业大学华德应用技术学院毕业设计(论文)IIInjectionMoldDesignofAutoLockcoverAbstractInthispaper,themainfocusAutoLockcoverinjectionmolddesignisfocusedasthemaincontent,Focuslyonthedesignofthetwocolumnssliderguidegroovesoftherampcorepullingbodiesfromtheinjectionmoldingprocessesaremeasuredintermsofmolddesignisreasonable,canguaranteethesmoothplasticstripping.First,theprocessforplasticpartsisanalysised,themainanalysisofthestructureofplasticparts,plasticpartsmoldingconditions,andaccuracy,followedbyachoiceofinjectionmachine,andthecalculationofthenumberofcavity,andthendiebodyhasbeendesigned,mainlyincludingthedesignofgatingsystem,formingpartsofthedesign,sidecorepullingmechanismdesign,introductionofinstitutionaldesignandcoolingsystemdesign,thefinaloveralldesignofthediewasmainlythechoiceofmoldandmoldassembly.KeywordsInjectionmoldLockcoverBevelcolumnFormingParts哈尔滨工业大学华德应用技术学院毕业设计(论文)III目录摘要.................................................................................................................IAbstract..........................................................................................................II第1章绪论...................................................................................................11.1课题背景..............................................................................................11.1.1模具工业在国民经济中的地位...................................................11.1.2模具的分类和占有量...................................................................11.1.3我国模具工业的现状...................................................................11.1.4我国模具技术的现状及发展趋势...............................................21.1.5国外模具的发展状况...................................................................21.2课题研究的目的及意义......................................................................31.2.1课题研究的目...............................................................................31.2.2课题研究的意义...........................................................................31.3课题研究的主要内容..........................................................................4第2章注塑成型工艺分析...........................................................................52.1塑件图分析..........................................................................................52.2ABS材料性能......................................................................................62.2.1化学和物理性能...........................................................................62.2.2成型特性.......................................................................................62.2.3模具设计方面...............................................................................62.2.4注塑模工艺条件...........................................................................62.3成型工艺条件......................................................................................72.3.1温度...............................................................................................72.3.2压力...............................................................................................72.3.3成型周期.......................................................................................72.4塑件精度等级......................................................................................82.5本章小结..............................................................................................8第3章注射机的选择...................................................................................93.1型腔数量的确定..................................................................................93.2注射机的选用......................................................................................93.2.1根据锁模力选注射机.................................................................10哈尔滨工业大学华德应用技术学院毕业设计(论文)IV3.2.2确定注射机型号.........................................................................103.2.3塑件在分型面上的投影面积校核.............................................103.2.4理论注射量校核.........................................................................113.2.5锁模力校核.................................................................................113.2.6注射压力校核.............................................................................123.2.7注射机最大开模行程与模具厚度的校核.................................123.3本章小结............................................................................................13第4章浇注系统的设计.............................................................................144.1定位圈的设计....................................................................................144.2塑件分型面的选择............................................................................144.3浇注系统设计....................................................................................154.3.1浇注系统设计原则.....................................................................154.3.2主流道的设计.............................................................................154.3.3分流道的设计.............................................................................164.3.4浇口的设计.................................................................................174.3.5冷料穴的设计.............................................................................184.4排气方式............................................................................................184.5本章小结............................................................................................18第5章成型零部件的设计.........................................................................195.1凹模尺寸计算....................................................................................195.1.1凹模长度尺寸计算.....................................................................195.1.2凹模宽度尺寸计算.....................................................................195.1.3凹模深度尺寸计算.....................................................................205.2凸模尺寸计算....................................................................................215.2.1凸模长度尺寸计算.....................................................................215.2.2凸模宽度尺寸计算.....................................................................215.2.3凸模高度尺寸计算.....................................................................225.3本章小结............................................................................................23第6章侧向抽芯机构的设计.....................................................................246.1斜导柱抽芯机构的组成....................................................................246.2斜导柱的设计....................................................................................246.2.1斜导柱的倾角.........................................................................246.2.2抽芯距的计算.............................................................................25哈尔滨工业大学华德应用技术学院毕业设计(论文)V6.2.3斜销有效工作长度.....................................................................256.2.4斜导柱长度计算.........................................................................256.3斜滑块的设计....................................................................................266.4本章小结............................................................................................27第7章推出结构的设计.............................................................................287.1推出机构的设计原则........................................................................287.2推出机构的形式................................................................................287.3脱模力的计算....................................................................................297.4本章小结............................................................................................29第8章冷却系统的设计.............................................................................308.1模具温度对制品精度的影响............................................................308.2冷却水道的计算................................................................................308.2.1冷却水的体积流量.....................................................................308.2.2冷却水在管道内的流速.............................................................318.2.3冷却水道孔数.............................................................................318.3本章小结............................................................................................32第9章模具的总体设计.............................................................................339.1模架的确定........................................................................................339.1.1模架的选用.................................................................................339.1.2模架尺寸的确定.........................................................................339.2导向与定位机构的设计....................................................................349.2.1导柱的结构形式.........................................................................349.2.2导套的结构形式.........................................................................349.3模具的装配........................................................................................359.4本章小结............................................................................................36结论...............................................................................................................37致谢...............................................................................................................38参考文献.......................................................................................................39

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