机械5

柱筒支座的机械加工工艺规程及钻4-M10孔夹具设计 摘要 本文是对柱筒支座零件加工应用及加工的工艺性分析，主要包括对零件图的分析、毛坯的选择、零件的装夹、工艺路线的制订、刀具的选择、切削用量的确定、加工工艺文件的填写。选择正确的加工方法，设计合理的加工工艺过程。此外还对填料箱盖零件的两道工序的加工设计了专用夹具. 机床夹具的种类很多，其中，使用范围最广的通用夹具，规格尺寸多已标准化，并且有专业的工厂进行生产。而广泛用于批量生产，专为某工件加工工序服务的专用夹具，则需要各制造厂根据工件加工工艺自行设计制造。 关键词：柱筒支座，加工工艺，加工方法，工艺文件，夹具 Abstract This paper is o
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n, fixture 目录 摘要2 Abstract 3 目录4 1绪论6 2零件的分析7 2.1零件的工艺分析7 2.2零件的工艺要求7 3工艺规程设计9 3.1加工工艺过程9 3.2确定各表面加工方案9 3.2.1考虑因素9 3.2.2加工方案的选择9 3.3确定定位基准10 3.3.1粗基准的选择10 3.3.2精基准选择的原则10 3.4工艺路线的拟订10 3.4.1工序的合理组合10 3.4.2工序的集中与分散11 3.4.3加工阶段的划分11 3.4.4加工工艺路线方案的比较12 3.5零件的偏差，加工余量，工序尺寸及毛坯尺寸的确定14 3.5.1毛坯的结构工艺要求15 3.5.2零件的偏差计算15 3.6确定切削用量及基本工时（机动时间） 15 4钻4-M10孔夹具设计24 4.1研究原始质料24 4.2定位基准的选择24 4.3切削力及夹紧力的计算24 4.4误差分析与计算25 4.5零、部件的设计与选用26 4.5.1定位销选用26 4.5.2夹紧装置的选用26 4.5.3钻套、衬套、钻模板设计与选用26 4.6夹具设计及操作的简要说明28 总结28 参考文献30 致谢31