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。 回流阀加工工艺规程及其铣端面的工装的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
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nd the e
ngi
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nological desig
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n the a
nalysis i
n the tech
nological desig
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nts the craft route; After that is carryi
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nd the cutti
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ns; The
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nit clamp the desig
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ns the jig each compositio
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nalyzes the jig structure the ratio
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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2 1.1零件的作用2 1.2零件的工艺分析2 二.毛坯的确定4 2.1确定毛坯的制造形式4 2.2毛坯形状及尺寸5 三拟定加工工艺路线6 3.1基准的选择6 3.1.2粗基准选择6 3.1.2精基准的选择7 3.2制定工艺路线8 四零件加工工序设计11 4.1铣Φ62下端面11 4.4车Φ25. Φ28，Φ34螺纹底孔12 4.2铣Φ78右端面13 4.3钻Φ20孔14 4.5钻Φ62下端面4-M6螺纹孔15 4.6钻Φ78右端面上4-Φ9孔16 五、夹具设计17 5.1问题的提出17 5.2定位基准的选择17 5.3切削力及夹紧力计算18 5.4定位误差分析19 5.5导向装置的设计19 5.6夹具设计及操作简要说明23 总结24 致谢26 参考文献27