斜支架零件的机械工艺规程及钻Ф11孔夹具设计 摘要 本课题的主要研究内容是斜支架零件的机械工艺规程及工艺装备设计。斜支架件是一种很重要的零件。结合零件加工的重点和难点，从零件的结构分析入手，合理的进行定位基准选择、夹具的设计、各种刀具参数选择以及切削用量的选择等。在安排工艺过程时，根据加工要求不同，需要进行粗精加工。另外还确定了切削参数，加工工时，填写工序卡片。设计了一套钻削Ф11圆柱孔的作用夹具。 夹具是零件加工的夹紧装置，是加工零件的一种必不可少的装置。随着零件的尺寸变化，越来越多的夹具被淘汰了，因此，设计一套专用夹具是十分有必要的。在设计专用夹具时要考虑工件的定位方案，工件的夹紧方案和设计夹紧机构，夹具的其他组成部分，夹具的结构形式等。 关键词：斜支架、工艺规程、工艺装备、、钻削、Ф11 Abstract The mai
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n additio
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ng parameters, machi
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ng hours a
nd process cardswere determi
ned. A set of drilli
ng jig for 11 cyli
ndrical holes is desig
ned. Jig is the clampi
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n esse
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n desig
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nsider the positio
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nd the desig
n of the clampi
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nism, other parts of the fixture, the structure of the fixture a
nd so o
n. Keywords i
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ng, 11 目录 摘要I Abstract II 第一章绪论1 1.1夹具概念1 1.2夹具的分类1 1.2.1按夹具的通用特性分类1 1.2.2按夹具的动力源分类2 第二章零件的分析3 2.1零件的作用3 2.2零件的组成表面、加工要求、形位公差分析3 2.2.1零件的组成表面3 2.2.2零件的加工要求4 2.2.3零件的形位公差4 第三章零件的工艺规程设计5 3.1确定零件的生产类型及毛坯的制造形式5 3.1.1确定零件的生产类型5 3.1.2确定毛坯的制造形式5 3.2基准的选择与确定6 3.3加工工艺路线的确定6 3.4加工机床及加工装备的选择7 3.5确定加工余量8 3.6计算切削用量及基本时间9 第四章钻Ф11圆柱孔专用夹具设计23 4.1定位方案及装置的确定23 4.1.1设计定位方案应满足的要求23 4.1.2定位方案的确定23 4.1.3定位元件的确定23 4.2夹紧方案及装置的确定24 4.2.1设计夹紧装置应遵循的原则24 4.2.2夹紧方案的确定25 4.2.3夹紧元件的确定25 4.3夹具体的设计25 4.4导向装置—钻套的确定26 4.5钻削力的计算29 4.6夹紧力的计算29 结论30 致谢31 参考文献32