毕业论文：拨叉80-08的加工工艺毕业设计.docVIP

攀枝花学院本科毕业设计（论文） 目录  PAGE 38 目 录  TOC \o 1-3 \h \z \u  HYPERLINK \l _Toc170195811 摘 要 Ⅰ  HYPERLINK \l _Toc170195812 Abstract Ⅱ  HYPERLINK \l _Toc170195813 1 绪论  PAGEREF _Toc170195813 \h 1  HYPERLINK \l _Toc170195813 1.1课题背景  PAGEREF _Toc170195813 \h 1  HYPERLINK \l _Toc170195813 1.2夹具的发展史  PAGEREF _Toc170195813 \h 1  HYPERLINK \l _Toc170195813 1.3小结 2  HYPERLINK \l _Toc170195814 2 拨叉80-08的加工工艺规程设计  PAGEREF _Toc170195814 \h 3  HYPERLINK \l _Toc170195815 2.1零件的分析  PAGEREF _Toc170195815 \h 3  HYPERLINK \l _Toc170195816 2.1.1零件的作用  PAGEREF _Toc170195816 \h 3  HYPERLINK \l _Toc170195817 2.1.2零件的工艺分析  PAGEREF _Toc170195817 \h 3  HYPERLINK \l _Toc170195818 2.2确定生产类型  PAGEREF _Toc170195818 \h 3  HYPERLINK \l _Toc170195819 2.3确定毛坯  PAGEREF _Toc170195819 \h 3  HYPERLINK \l _Toc170195820 2.3.1确定毛坯种类  PAGEREF _Toc170195820 \h 3  HYPERLINK \l _Toc170195821 2.3.2确定铸件加工余量及形状  PAGEREF _Toc170195821 \h 3  HYPERLINK \l _Toc170195822 2.3.3绘制铸件零件图  PAGEREF _Toc170195822 \h 4  HYPERLINK \l _Toc170195824 2.4工艺规程设计  PAGEREF _Toc170195824 \h 4  HYPERLINK \l _Toc170195825 2.4.1选择定位基准  PAGEREF _Toc170195825 \h 4  HYPERLINK \l _Toc170195826 2.4.2制定工艺路线  PAGEREF _Toc170195826 \h 4  HYPERLINK \l _Toc170195827 2.4.3选择加工设备和工艺设备  PAGEREF _Toc170195827 \h 6  HYPERLINK \l _Toc170195828 2.4.4机械加工余量、工序尺寸及公差的确定  PAGEREF _Toc170195828 \h 6  HYPERLINK \l _Toc170195830 2.5确定切削用量及基本工时  PAGEREF _Toc170195830 \h 8  HYPERLINK \l _Toc170195831 2.5.1工序1：粗铣Φ25H7的两侧面  PAGEREF _Toc170195831 \h 8  HYPERLINK \l _Toc170195832 2.5.2工序2：粗铣平下端面孔侧面的工艺凸台 9  HYPERLINK \l _Toc170195833 2.5.3工序3：钻Φ25H7的通孔 9  HYPERLINK \l _Toc170195834 2.5.4工序4：扩Φ25H7的通孔 11  HYPERLINK \l _Toc170195835 2.5.5工序5：铰Φ25H7的通孔 12  HYPERLINK \l _Toc170195836 2.5.6工序6：粗铣a、b面  PAGEREF _Toc170195836 \h 12  HYPERLINK \l _Toc170195837 2.5.7工序7：粗铣Φ60H12孔的两面 14  H