剪底线传动臂铣15°斜面夹具设计制造及加工工艺规程装备 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。 剪底线传动臂工艺规程及其铣15°面的工装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：剪底线传动臂、切削用量定位误差 Abstract The desig
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ng error 目录 摘要I Abstract II 第一章概述发展1 1.1机床夹具的主要功能1 1.2机床夹具的组成1 1.3夹具设计的步骤和基本要求1 1.3.1夹具设计的基本要求1 1.3.2夹具的设计步骤2 1.3.3夹具总图上尺寸、公差与配合和技术条件的标注3 1.3.4夹具体设计5 第二章工艺规程设计7 2.1剪底线传动臂7 2.2零件的工艺分析9 2.3基面的选择9 2.3.1粗基准的选择原则9 2.3.2精基准选择的原则10 2.4制定工艺路线10 2.5确定各工序的加工余量11 2.6确定切削用量及基本工时12 第三章专用夹具设计25 3.1问题的提出25 3.2定位基准的选择25 3.3切削力及夹紧力计算25 3.4定位误差分析26 3.5夹具设计及操作简要说明27 结束语28 谢辞29 参考文献30