机械5

压滚座的工艺规程及钻Φ9孔的工装夹具设计 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。 压滚座的工艺规程及钻Φ10孔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：工艺、工序、切削用量、夹紧、定位、误差。 ABSTRCT The desig
n of the co
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nt relates to the machi
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nd machi
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nd drill a9 hole jig desig
n is i
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ng process desig
n, process desig
n a
nd fixture desig
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n three parts. I
n the desig
n process should first of all parts for a
nalysis, to u
ndersta
nd the parts of the process to desig
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nd choose the good parts processi
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n parts of the process route; a
nd the
n thevarious parts of the process step size calculatio
n, is the key to decide the process equipme
nt a
nd cutti
ng parameters; the
n special fixture desig
n, selectio
n a
nd desig
n of a jig for thevarious compo
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nd the machi
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n the positio
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nalysis, fixture structure ratio
nality a
nd deficie
ncy, a
nd later i
n the desig
n of improved. Keywords: process, process, cutti
ng dosage, clampi
ng, positio
ni
ng, error. 目录 序言1 第1章零件的分析2 1.1零件的作用2 1.2零件的工艺分析2 第2章工艺规程设计3 2.1确定毛坯的制造形式3 2.2基面的选择的选择3 2.3制定工艺路线4 2.4机械加工余量、工序尺寸及毛坯尺寸的确定6 2.5确定切削用量及基本工时6 第3章夹具设计27 3.1问题的提出27 3.2定位基准的选择27 3.3切削力及夹紧力计算27 3.4定位误差分析28 3.5钻套设计28 3.6夹具设计及操作简要说明28 总结31 致谢32 参考文献33