石家庄铁道大学毕业设计目录第1章绪论..........................................................11.1课题研究的目的和意义.............................................11.2组合机床国内外研究现状...........................................11.2.1组合机床简介................................................11.2.2国内研究现状................................................21.2.3国外研究现状................................................21.3课题研究的主要内容...............................................3第2章拖拉机副变速箱壳的工艺规程制定................................32.1零件的分析.......................................................32.1.1零件的作用..................................................32.1.2零件的工艺分析..............................................42.2机械加工工艺规程的制订...........................................41石家庄铁道大学毕业设计2.2.1计算生产纲领、确定生产类型...................................42.2.2选择毛坯.....................................................42.2.3工艺过程设计.................................................52.2.4制定工艺路线.................................................52.2.5确定机械加工余量及毛坯尺寸...................................62.2.6工序设计.....................................................72.3确定切削用量及基本工时............................................92.3.1工序40粗铣上面.............................................92.3.2工序50粗铣前、后面........................................102.3.3工序60粗镗01、02、05孔....................................112.3.4工序70精铣上面............................................122.3.5工序80钻铰上面2-Ф8孔.....................................132.3.6工序90精铣前后面..........................................162石家庄铁道大学毕业设计2.3.7工序100半精镗01、02、05孔.................................172.3.8工序110精镗01、02、05孔..................................182.3.9工序120钻上面5-M8、2-M8螺纹底孔..........................192.3.10工序130钻前面2-Ф13孔、后面8-Ф13孔、前面6-M12螺纹底孔202.3.11工序140钻6-M8螺纹底孔...................................212.3.12工序工序150粗铣提升手柄平面.............................222.3.13工序工序160钻、扩、铰...................................232.3.14工序170钻3-M6螺纹底孔至Ф5±0.09.......................262.3.15工序180钻踏板2-M10螺纹底孔至Ф8.5±0.11................272.3.16工序190攻上面5-M8、2-M8螺纹.............................282.3.17工序200攻前面6-M12螺纹..................................292.3.18工序210攻前面6-M8螺纹...................................302.3.19工序220攻踏板连接2-M8螺纹...............................313石家庄铁道大学毕业设计2.3.20工序230攻提升孔端3-M6螺纹...............................332.3.21工序240精铰上面2-Ф8孔..................................34第3章工序13及工序19夹具设计.....................................353.1工序13夹具设计.................................................353.1.1定位方案..................................................353.1.2定位销尺寸及定位误差计算..................................353.1.3定位销高度计算.............................................373.1.4加紧方案选择及加紧机构设计.................................373.1.5夹紧力计算................................................383.1.6其它装置机构及夹具体的设计................................393.2工序19夹具设计.................................................403.2.1确定夹...
