机械5

摘要 机械制造业是制造具有一定形状位置和尺寸的零件和产品，并把它们装备成机械装备的行业。机械制造业的产品既可以直接供人们使用，也可以为其它行业的生产提供装备，社会上有着各种各样的机械或机械制造业的产品。我们的生活离不开制造业，因此制造业是国民经济发展的重要行业，是一个国家或地区发展的重要基础及有力支柱。从某中意义上讲，机械制造水平的高低是衡量一个国家国民经济综合实力和科学技术水平的重要指标。 车床离合齿轮零件的加工工艺规程及其铣2-38的夹具设计，是在学完了机械制图、机械制造技术基储机械设计、机械工程材料等之后，进行设计的一个教学环节。正确地解决一个零件在加工中的定位，夹紧以及工艺路线安排，工艺尺寸确定等问题，并设计出专用夹具，保证零件的加工质量。本次设计也要培养自己的自学与创新能力。因此本次设计综合性和实践性强、涉及知识面广。所以在设计中既要注意基本概念、基本理论，又要注意生产实践的需要，只有将各种理论与生产实践相结合，才能很好的完成本次设计。 本设计选用车床离合齿轮零件来进行工艺编制与夹具设计，以说明书、绘图为主，设计手册与国家标准为附来进行详细说明。 关键词：车床离合齿轮；加工工艺；夹具设计;工艺路线 Abstract Machi
nery ma
nufacturi
ng i
ndustry is a
n i
ndustry that ma
nufactures parts a
nd productswith certai
n shape, positio
n a
nd size a
nd equips them as mecha
nical equipme
nt. Machi
nery ma
nufacturi
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n be used directly for people, but also for other i
ndustries to provide equipme
nt for productio
n, there are avariety of machi
nery or machi
nery ma
nufacturi
ng products i
n society. Our life is i
nseparable from ma
nufacturi
ng i
ndustry, so ma
nufacturi
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ndustry is a
n importa
nt i
ndustry of
natio
nal eco
nomic developme
nt, a
n importa
nt fou
ndatio
n a
nd powerful pillar for the developme
nt of a cou
ntry or regio
n. I
n a se
nse, the level of machi
nery ma
nufacturi
ng is a
n importa
nt i
ndex to measure a cou
ntry's comprehe
nsive
natio
nal eco
nomic stre
ngth a
nd the level of scie
nce a
nd tech
nology. Processi
ng tech
nology rules of lathe clutch gear parts a
nd fixture desig
n of milli
ng 2-38 are a teachi
ng li
nk of graduatio
n desig
n after lear
ni
ng mecha
nical drawi
ng, mecha
nical ma
nufacturi
ng tech
nology fou
ndatio
n, mecha
nical desig
n, mecha
nical e
ngi
neeri
ng materials, etc. Correctly solve the problems of positio
ni
ng, clampi
ng, process route arra
ngeme
nt a
nd process size determi
natio
n of a part i
n processi
ng, a
nd desig
n a special fixture to e
nsure the processi
ng quality of the part. This desig
n also
needs to cultivate self-study a
nd i
n
novatio
n ability. Therefore, the desig
n is comprehe
nsive a
nd practical, i
nvolvi
ng awide ra
nge of k
nowledge. Sowe should pay atte
ntio
n to the basic co
ncepts a
nd theories aswell as the
needs of productio
n practice i
n the desig
n. O
nly by combi
ni
ngvarious theorieswith productio
n practice ca
nwe complete the desig
nwell. This desig
n chooses lathe clutch gear parts for process pla
n
ni
ng a
nd fixture desig
n, mai
nlywith i
nstructio
ns, drawi
ngs, desig
n ma
nuals a
nd
natio
nal sta
ndards attached for detailed descriptio
n. Keywords: lathe clutch gear; processi
ng tech
nology; fixture desig
n; process route 目录 摘要I Abstract II 第1章绪论1 1.1机械加工工艺规程制订1 1.2机械加工工艺规程的组成1 1.3制订机械加工工艺规程的原始资料2 1.4研究方法及技术路线2 第2章零件加工工艺制订4 2.1零件图分析4 2.2毛坯的确定5 2.3拟定工艺路线6 2.3.1加工方法及方案确定6 2.3.2定位基准的选择6 2.3.3加工阶段、加工顺序安排8 2.3.4拟定工艺路线8 2.3.5设备及工装的确定9 2.4工时计算9 第3章夹具设计24 3.1确定夹具的类型。 24 3.2定位方案设计及元件选择24 3.3夹紧方案及装置设计25 3.4对刀及导向装置设计25 3.5夹具与机床的连接设计28 3.6夹具体设计28 3.7夹具的定位误差分析及夹紧力校核28 3.7.1夹具的定位误差分析28 3.7.2夹紧力校核29 第4章结论32 参考文献33 致谢34