斜拨叉的加工工艺规程和车R43圆环夹具设计 摘要 本次设计内容涉及了机械制造工艺及机床夹具设计、金属切削机床、公差配合与测量等多方面的知识。 斜拨叉加工工艺规程及其车圆环的夹具设计是包括零件加工的工艺设计、工序设计以及专用夹具的设计三部分。在工艺设计中要首先对零件进行分析，了解零件的工艺再设计出毛坯的结构，并选择好零件的加工基准，设计出零件的工艺路线；接着对零件各个工步的工序进行尺寸计算，关键是决定出各个工序的工艺装备及切削用量；然后进行专用夹具的设计，选择设计出夹具的各个组成部件，如定位元件、夹紧元件、引导元件、夹具体与机床的连接部件以及其它部件；计算出夹具定位时产生的定位误差，分析夹具结构的合理性与不足之处，并在以后设计中注意改进。 关键词：工艺、工序、切削用量、夹紧、定位、误差。 ABSTRACT This desig
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n, 目录 序言1 第1章零件分析2 1.1零件的作用2 1.2零件的工艺分析2 第2章工艺规程设计3 2.1确定毛坯的制造形式3 2.2基面的选择3 2.3工艺路线的制定4 2.4机械加工余量、工序尺寸及毛皮尺寸的确定6 2.5确立切削用量及基本工时6 第3章车R43圆环夹具设计14 3.1车床夹具设计要求说明14 3.2车床夹具的设计要点14 3.3定位机构15 3.4夹紧机构15 3.5零件的车床夹具的加工误差分析17 3.6确定夹具体结构尺寸和总体结构17 3.7零件的车床专用夹具简单使用说明18 总结19 参考文献20 致谢21