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 The basis of automation. Use of machine tools, need a large number of skilled personnel of modern numerical control technology. The application of numerical control technology not only bring revolutionary change to traditional manufacturing industry, manufacturing industry has become a symbol of industrialization, and with the continuous development of numerical control technology and application field expands, it to the national economy and people′s livelihood some important industry plays a more and more important role in the development.
KEYWORDS:fixture multi-function; Die forging links; Group technology;clipping tight
 目录
摘要 I
ABSTRACT II
第一章 绪论 1
    1.1课题背景 1
    1.2夹具的发展史 1
    1.3 小结 1
第二章 方头小轴的加工工艺规程设计 2
 2.1零件的分析 2
    2.1.1零件的作用 3
    2.1.2零件的工艺分析 4
 2.2确定生产类型 8
 2.3确定毛坯 12
    2.3.1确定毛坯种类 13
    2.3.2确定零件加工余量及形状 15
    2.3.3绘制零件毛坯图 17
 2.4工艺规程设计 18
    2.4.1选择定位基准 18
    2.4.2制定工艺路线 18
    2.4.3选择加工设备和工艺设备 19
    2.4.4机械加工余量、工序尺寸及公差的确定 19
 2.5确定切削用量及基本工时 19
    2.5.1工序20：粗车右端外圆及端面至 20
    2.5.2工序30：调头装夹，粗车左端外圆及端面 21
    2.5.3工序40：粗车外圆至尺寸 22
    2.5.4工序50：粗车外圆至尺寸 22
    2.5.5工序70：精车至尺寸 22
    2.5.6工序80：车沟槽2X0.5 23
    2.5.7工序90：铣方头扁位17X17 23
    2.5.8工序100：钻、绞H7孔 23
 第三章 专用夹具设计 24
  3.1铣夹具设计 25
    3.1.1问题的提出 25
    3.1.2夹具的设计 26
    第四章 刀具设计 26
    结论 28
    参考文献 29
 致谢 3

机械毕业设计|论文