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当前位置:首页 > 机械/制造/汽车 > 机械/模具设计 > XZ25-50变速箱箱体工艺及粗镗孔夹具设计锥形套注塑模具
I 摘要题目一:XZ25-50变速箱箱体工艺及粗镗孔夹具设计本文仔细分析了XZ25-50变速箱零件的形状、结构、特点及各项技术要求。根据给定的生产纲领参观了同类零件的生产工艺过程,经过对比分析结合企业的设备状况,制定了其加工工艺规程,并设计了其中80工序的粗镗孔专用夹具,为了满足该工序中各项技术精度要求,夹具采用了“一面两销”的可靠定位和移动压板夹紧机构,刀具的导向采用导套来实现。关键词变速箱;粗镗;工艺规程;专用夹具题目二:锥形套注塑模具设计本文分析了锥形套的材料、性能以及注射成型时的工艺特点,介绍了锥形套模具结构及其各个子系统的设计特点,重点设计了锥形套注射结构中浇注系统和脱模机构,根据以上的分析决定采用“一模十腔”点浇口注塑模具,推出系统采用推板和推杆联合推出机构。关键词注射成型;成型工艺;浇注系统;脱模机构II 题目一: ABSTRACT This paper have a detailed analysis of the XZ2550 gear box parts’shape, structure, characte ristics and the various technical requirements. According to the production programe, the vist to the similar parts’production process is had . By having a comparative analysis combining to the equipment situation of business, it’s machining technology regulations are developed and the eightieth process’rough boring special fixture is designed. In order to meet the process’various technical precision, the fixture is adopted the form of a face two pin to give a reliable location, adopted the mobile plate to clamp the parts and used the oritented sleeve to achive the toolorientation. Keyword Gearbox Rough boring Technology regulations special fixture 题目二: ABSTRACT The conethimble’s material, performance and technology characters during conethimble injection molding are analyzed, the structure of conethimble mold and design specialty ineach of its subsystems are introduced separately. Importantly,to design the demoulding mechanism and pouring system in the structure of conethimble mold. According to the above analysis, mold is adopted a mold ten cavity point gate injection mold and adopted the pushingplate and putters compound pushing mechanism. Keyword Injection moulding Moulding technology Casting system Demoulding mechanismI 目录绪论........................................................................1课题一:....................................................................21箱体零件加工工艺规程设计..................................................21.1XZ25-50变速器壳体的用途..............................................21.2零件的工艺分析.........................................................21.3确定箱体的生产类型....................................................21.4确定箱体毛坯制造形式和尺寸............................................21.4.1确定毛坯的制造种类和制造方法.......................................31.4.2毛坯余量和工序余量的确定...........................................31.5定位基准的选择........................................................31.5.1粗基准的选择.......................................................31.5.2精基准的选择.......................................................31.6确定箱体零件各加工表面的加工方案......................................41.7确定工艺方案的原则及注意问题..........................................41.7.1粗、精加工阶段分开原则.............................................41.7.2工序集中和分散原则.................................................51.7.3制定工艺方案应注意的其它方面.......................................51.8工艺路线的确定........................................................61.9确定各表面的切削用量和基本工时........................................61.9.1工序50粗精铣上表面................................................61.9.2工序60钻上表面各螺纹底孔以及孔....................................71.9.3工序70攻上表面各螺纹以及铰孔......................................81.9.4工序80粗精铣左右表面..............................................91.9.5工序90粗镗-半精镗-精镗左右面上轴承孔,扩铰倒档孔..................91.9.6工序100钻左右面上的螺纹底孔以及孔................................121.9.7工序110攻左右面上的螺纹..........................................141.9.8工序120粗精铣前后各面和倒档孔内端面以及铣倒档孔内槽..............151.9.9工序130钻前后面上的螺纹底孔以及孔................................162.0工序140攻前后面上的螺纹孔以及孔....................................182专用夹具的设计...........................................................212.1对镗床夹具的具体的要求...............................................212.2夹具体的毛坯结构.....................................................212.3夹具元件的选择与设计..................................................21II 2.4专用夹具的设计步骤....................................................222.5绘制夹具总装配图......................................................222.6标注夹具总装配图上个部分尺寸和技术要求................................222.7夹具公差配合的制订....................................................232.7.1制订夹具公差与技术条件的依据......................................232.7.2制定夹具公差和技术条件的基本原则..................................232.8夹具公差的制订........................................................242.9夹具技术条件的制订....................................................242.9.1定位元件之间或定位元件对夹具体底面之间的相互位置要求..............242.9.2定位元件与连接元件间的相互位置要求................................242.9.3对刀元件与连接元件间的相互位置要求................................242.9.4定位元件与引导元件间的相互位置要求................................242.10夹具设计部分的计算..................................................242.10.1基准的选择.......................................................242.10.2切削夹紧力的计算.................................................242.10.3定位误差的分析...................................................25课题二:...................................................................271原始材料的分析...........................................................271.1分析塑件的成型特性....................................................271.2分析塑件的结构及工艺性.
本文标题:XZ25-50变速箱箱体工艺及粗镗孔夹具设计锥形套注塑模具
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