机械5

油缸前管座加工工艺规程与三维翻转式钻模设计 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。 油缸前管座零件的工艺规程及其钻不向方向孔系的工装夹具，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：油缸前管座、夹具、工艺设计 Abstract The desig
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n 目录 摘要I Abstract II 第1章绪论1 1.1引言1 1.2研究方法及技术路线1 第2章工艺规程设计3 2.1毛坯的制造形式3 2. 2零件分析3 2.3基面的选择3 2.3.1粗基准的选择原则3 2.3.2精基准选择的原则4 2.4制定工艺路线4 2.5确定各工序的加工余量5 2.6确定切削用量及基本工时5 第3章钻床夹具44 3.1工件自由度分析44 3.2切削力和夹紧力44 3.3定位误差计算44 3.4夹具操作说明45 致谢46 参考文献47