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。 电机支架加工工艺规程及其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 This desig
n co
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nt has i
nvolved the machi
ne ma
nufacture craft a
nd the e
ngi
ne bed jig desig
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nological desig
n, the worki
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n as well as the u
nit clamp desig
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n the a
nalysis i
n the tech
nological desig
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nderstood the compo
ne
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ns the semi fi
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nd chooses the good compo
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nts the craft route; After that is carryi
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n the size computatio
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ng procedure the craft equipme
nt a
nd the cutti
ng specificatio
ns; The
n carries o
n the u
nit clamp the desig
n, the choice desig
ns the jig each compositio
n part, like locates the part, clamps the part, guides the part, to clamp co
ncrete a
nd the e
ngi
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nectio
n part as well as other parts; Positio
n error which calculates the jig locates whe
n produces, a
nalyzes the jig structure the ratio
nality a
nd the deficie
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nd will desig
n i
n later pays atte
ntio
n to the improveme
nt. Keywords: The craft, the worki
ng procedure, the cutti
ng specificatio
ns, clamp, the localizatio
n, the error 目录 序言1 一零件的分析3 1.1零件的作用3 1.2零件的工艺分析3 二毛坯的确定5 2.1确定毛坯的制造形式5 2.2毛坯形状及尺寸6 三拟定加工工艺路线8 3.1基准的选择8 3.1.1粗基准选择8 3.1.2精基准的选择9 3.2制定工艺路线10 四切削用量及工时计算13 4.1工序1设计13 4.2工序2设计14 4.3工序3设计15 4.4工序4设计16 4.5工序5设计17 4.6工序6设计18 4.7工序7设计19 五夹具设计21 5.1问题的提出21 5.2定位基准的选择21 5.3切削力及夹紧力计算22 5.4定位误差分析24 5.5夹具设计及操作简要说明25 总结27 致谢29 参考文献30