摘要 在机械制造的机械加工，检验，装配，焊接和热处理等冷热工艺过程中，使用着大量的夹具，用以安装加工对象，使之占有正确的位置，以保证零件和工件的质量。 本次设计主要是进行连接盘零件的专用夹具的设计，是对我们以往所学知识的总结和对我们所掌握知识的一次扩展。本文主要从工艺规程的指定与夹具的设计两方面出发。根据零件本身的特点，生产类型以及零件在具体工作时的作用选择工艺规程和夹具。在工艺规程方面：确定生产类型，综合考虑其准确度高，生产效率高，消耗经济少等方面，选择一个最优方案；在夹具设计方面，因为是回转体盘状零件，加工4XФ10孔，选择钻床加工，考虑诸多因素拟订最优方案，最终完成本次设计。 Abstract The machi
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n. 目录 摘要I Abstract II 1零件的分析1 2机械加工工艺规程设计3 2.1毛坯的制造形式3 2.2基准面的选择3 2.2.1粗基准的选择3 2.2.2精基准的选择3 2.3制订工艺路线3 2.4机械加工余量、工序尺寸及毛坯尺寸的确定4 2.6时间定额的计算6 3指定工序的专用机床夹具设计7 3.1问题的指出7 3.2夹具设计7 3.2.1定位基准的选择7 3.2.2切削力及夹紧力的计算7 3.3定位误差的分析9 3.4夹具设计及操作的简要说明9 4.方案综合评价与结论10 5.本次课程设计体会与展望10 参考资料11