机械5

车床拨叉的工艺工装设计及三维实体造型 Lathe fork of theProcess tooli
ng a
nd 3d solid modeli
ng. 摘要 随着改革开放的不断发展，科学技术的不断进步，现代机械加工企业对生产效率的需求可谓日益增高。故而，大额度与大批量产品制造是现代生产的发展趋势，本次设计的背景就是在这样的情况暂开的。本设计涉及的拨叉是大体是支托作用的构件，承担一定的外作用力的负荷，使零部件之内保持合适的空间位置。故而拨叉加工质量为零件影响尤为重要，甚至影响到零件的工作状态，我自己对此展开深入研究。 零件加工设计牵扯的有关内容有点多，零件加工工艺色剂是理论课、技术课与专业知识课的整体，是学习完毕零件加工工业基础，并且举行了训练的基础之上展开的。本次设计是对我们大学里面所有的课程一次总复习，也是一次基于理论与实际相结合的训练。故而，它当我自己学习生活之中占有关键的位置。遵照该次设计加强对理论知识的学习，并把理论知识和实际联系起来，为我以后的工作打下扎实的基矗 这次设计使我们学生能整体应用零件加工的底层理论，并连系产品制造职业实习中获得的工程知识，独立剖析和处理工艺文件。使我们学生具备设计一种中等难易要求零部件的制造工艺规划的实力和掌握应用夹紧机构设计的基本理论与方法，同时熟悉和应用设计指南、设计标准等技术文献及撰写技术文献等基本能力。通过这次设计让我以前学的知识《机械设计》、《机械原理》、《机械制造基捶、《机械工程材料》特别好的有机的串联起来。 关键词生产制造；夹具设计；CAD绘图 Abstract With the co
nti
nuous developme
nt of reform a
nd ope
ni
ng up a
nd the co
nti
nuous improveme
nt of scie
nce a
nd tech
nology, the dema
nd of moder
n machi
nery processi
ng e
nterprises for productio
n efficie
ncy is o
n the i
ncrease. Therefore, the developme
nt of large-sum a
nd high-volume products is the developme
nt tre
nd of moder
n productio
n. The backgrou
nd of this graduatio
n project is temporarily ope
ned up i
n such a situatio
n. desig
n of the parts i
nvolved i
n the desig
n is ge
nerally supporti
ng the role of compo
ne
nts, to bear a certai
n load of exter
nal forces to mai
ntai
n the appropriate space withi
n the compo
ne
nts locatio
n. Parts processi
ng Graduatio
n desig
n i
nvolves a little more releva
nt co
nte
nt, parts processi
ng tech
nology is the theoretical class of to
ner, tech
nical courses a
nd professio
nal k
nowledge of the whole lesso
n is to lear
n the basis of parts processi
ng i
ndustry, a
nd held o
n the basis of trai
ni
ng carried out. This graduatio
n project is a total review of all the courses i
n our u
niversity, but also a combi
natio
n of theory a
nd practice. Therefore, it occupies a key place i
n my ow
n lear
ni
ng life. I
n accorda
nce with the graduatio
n project to stre
ngthe
n the theoretical k
nowledge of lear
ni
ng, a
nd theoretical k
nowledge a
nd practice, lay a solid fou
ndatio
n for my future work. This graduatio
n project e
nables our stude
nts to apply the u
nderlyi
ng theory of compo
ne
nt processi
ng as a whole a
nd to a
nalyze a
nd process the process docume
ntatio
n i
ndepe
nde
ntly of the e
ngi
neeri
ng k
nowledge gai
ned duri
ng the product-ma
nufacturi
ng i
nter
nship. So that our stude
nts have the desig
n of a medium difficult parts ma
nufacturi
ng process pla
n
ni
ng stre
ngth a
nd grasp the applicatio
n of clampi
ng mecha
nism desig
n of the basic theory a
nd methods, while familiar with a
nd applicatio
n of desig
n guideli
nes, desig
n sta
ndards a
nd other tech
nical literature a
nd writi
ng tech
nical docume
nts ability. Through this desig
n, I lear
ned the past k
nowledge "mecha
nical desig
n", "mecha
nical pri
nciple", "mecha
nical ma
nufacturi
ng base", "mecha
nical e
ngi
neeri
ng materials" particularly good orga
nic series together. Key words ma
nufacturi
ng clampi
ng mecha
nism desig
n CAD drawi
ng 目录 摘要1 Abstract 2 1零部件分析5 1.1零部件的功能5 1.2零部件的加工分析6 1.3零部件的生产类别6 1.3.1零件毛坯确定6 1.3.2零件毛坯尺寸的判断6 2生产工艺设计8 2.1加工流程分析8 2.2定位特征的正确选择8 2.3拟订加工路线9 2.4工艺流程图设计10 2.5加工用量计算11 3夹具设计24 3.1机械工装概括24 3.1.1机械工装的定义24 3.1.2机械工装的功能24 3.1.3机械工装在机床加工中的功用24 3.2机械工装的发展倾向25 3.2.1机械工装的情况25 3.2.2现在机械工装的发展倾向25 3.3定位设计26 3.3.1定位的判断26 3.3.2定位精度的计算26 3.4夹紧结构及夹紧元件的判断27 3.4.1夹紧装置中夹紧结构的具体设计27 3.4.2夹紧设计的具体要求28 3.4.3夹紧力方向和位置的判断28 3.4.4夹紧元件的判断30 3.4.5夹紧力大小计算30 3.5夹具体的具体设计31 3.6装配图的具体设计33 致谢37 参考资料38