机械5

套管加工工艺及磨Φ70内孔夹具设计 摘要 套管是某企业产品中的关键零件之一，本课题要求根据企业生产需要和套管零件的加工要求，首先完成零件的加工工艺规程设计，在此基础之上，选择其关键工序之一进行专用夹具，并完成必要的设计计算。本机床所用夹具的通用性强，工件采用定位夹紧，快速方便。夹紧采用手动加紧，采用这种方式完全能够满足精度要求。而且简易方便，制造成本低，通用性好。由于套管的生产量比较大，为了保证产品质量，提高加工效率，需要对其加工工艺进行优化设计，并在关键工序使用组合机床或专用机床进行加工。 通过设计，综合运用了大学期间的多数基础和专业知识，加深所学知识体系，掌握了运用各项绘图软件进行设计的方法和技巧,熟悉了工程应用设计。 关键词套管零件分析工艺路线夹具设计组合机床 Abstract The axile bush is o
ne of the key parts of a
n e
nterprise products, this text expou
nds mai
nly the machi
ni
ng tech
nology a
nd the desig
n of clampi
ng device of the co
n
necti
ng rod a
nd modular machi
ne tool of the axile bush.The precisio
n of size, the precisio
n of profile a
nd the precisio
n of positio
n, of the co
n
necti
ng rod is dema
nded highly, a
nd the rigidity of the co
n
necti
ng rod is
not e
nough, easy to deform,so arra
ngi
ng the craft course,
need to separate the each mai
n a
nd superficial thick fi
nish machi
ni
ng process. Reduce the fu
nctio
n of processi
ng the surplus, cutti
ng force a
nd i
nter
nal stress progressively, revise the deformatio
n after processi
ng, ca
n reach the specificatio
n requireme
nt for the part fi
nally.As the output of the axile bush isvery large,it is
need to make optimal desig
n for the machi
ni
ng tech
nology a
nd use modular machi
ne tool for pivotal machi
ni
ng process,to e
nsure product quality a
nd to improve the processi
ng efficie
ncy. Through this desig
n,the k
nowledge of more basic a
nd specialtywas sy
nthetically applited.The system of k
nowledgewe lear
nedwas i
nte
nsified.Co
ntrolled to make use ofvarious method a
nd tech
niques that the pai
nti
ng software carry o
n a desig
n,the desig
n of e
ngi
neeri
ng applicatio
nwas k
now
nwell. Keywords Axile Bush Precisio
n Processi
ng Tech
nology Desig
n of Clampi
ng Device Modular Machi
ne Tool 目录 摘要II Abstract III 1前言1 2零件工艺性分析2 2.1零件的作用2 2.2零件的工艺分析2 3套管工艺规程设计2 3.1工艺规程的作用2 3.2毛坯的确定3 3.3定位基准的选择3 3.4制定工艺路线3 3.5毛坯尺寸的确定6 3.6确定切削用量及基本工时6 4夹具设计13 4.1机床夹具的分类、基本组成和功用13 4.2夹具的设计思路13 4.3磨Φ70内孔夹具设计14 4.3.1定位基准的选择14 4.3.2磨削力及夹紧力的计算14 4.3.3定位误差分析16 4.3.4夹具结构设计17 4.3.5夹具的使用方法17 4.3.6夹具的调整17 总结19 参考文献20 致谢21