机械5

摘要 制定车床I轴的加工工艺，设计钻Φ23孔的钻床夹具，运用机械制造工艺学课程中的基本理论以及在生产实习中学到的实践知识，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，保证零件的加工质量。提高结构设计能力。通过设计夹具的训练，获得根据被加工零件的加工要求，设计出高效，省力，经济合理而能保证加工质量的夹具的能力。学会使用手册以及图表资料。掌握与本设计有关的各种资料的名称，出处，能够做到熟练的运用。设计是我们对我所学知识的深入综合性的总结，也是一次理论联系实际的训练，因此，它在我们的大学生活中占有重要的地位。另外在做完这次设计之后，我得到一次综合性训练，我在想我能在多个方面得到锻炼。就我个人而言，我希望通过这次设计对自己未来将从事的工作进行一次适应性训练，从中锻炼自己发现问题、分析问题和解决问题的能力，为今后参加祖国建设打一个良好的基矗 关键词：车床I轴；加工工艺；钻床夹具；定位 Abstract Maki
ng the processi
ng tech
nology of lathe I axis, desig
ni
ng the drilli
ng fixture for drilli
ng hole 23, usi
ng the basic theory i
n the course of mecha
nical ma
nufacturi
ng tech
nology a
nd the practical k
nowledge lear
ned i
n the productio
n practice, correctly solvi
ng the problems of positio
ni
ng, clampi
ng, process route arra
ngeme
nt a
nd process dime
nsio
n determi
natio
n of a part i
n the processi
ng, so as to e
nsure the processi
ng quality of the parts. Improve the ability of structural desig
n. Through the trai
ni
ng of fixture desig
n, the ability of fixture desig
nwhich is efficie
nt, labor-savi
ng, eco
nomical a
nd reaso
nable a
nd ca
n guara
ntee the processi
ng quality is obtai
ned accordi
ng to the processi
ng requireme
nts of the processed parts. Lear
n to use ma
nuals a
nd charts. Master the
name a
nd source of all ki
nds of data related to this desig
n, a
nd be able to use it skillfully. Graduatio
n desig
n is a thorough a
nd comprehe
nsive summary ofwhatwe have lear
ned a
nd a trai
ni
ng of i
ntegrati
ng theorywith practice. Therefore, it occupies a
n importa
nt positio
n i
n our college life. I
n additio
n, after completi
ng this graduatio
n project, I got a comprehe
nsive trai
ni
ng, I thi
nk I ca
n get exercise i
n ma
ny aspects. Perso
nally, I hope that through this graduatio
n project, Iwill carry out a
n adaptability trai
ni
ng for my futurework, fromwhich I ca
n exercise my ability to fi
nd, a
nalyze a
nd solve problems, a
nd lay a good fou
ndatio
n for future participatio
n i
n the co
nstructio
n of the motherla
nd. Keywords: lathe I axis; processi
ng tech
nology; drilli
ng fixture; positio
ni
ng 目录 1引言1 1.1研究背景及意义1 1.2研究内容1 2零件分析3 2.1功用分析3 2.2结构分析3 2.3工艺分析3 4工艺规程设计6 4.1选择定位基准6 4.2确定工艺路线7 4.3确定加工设备及工艺装备8 4.4加工余量、工序尺寸及公差的计算9 4.5切削用量的计算9 4.6时间定额的计算38 4.7确定工序及工艺51 5夹具设计52 5.1夹具设计概述52 5.1.1加工设备的选择52 5.1.2零件加工位置52 5.2夹具结构设计52 5.2.1六点定位分析52 5.2.2定位方案的选择52 5.2.3定位元件的选择52 5.2.4定位误差的计算52 5.3夹紧装置的设计54 5.3.1夹紧方案的设计54 5.3.2夹紧力的计算54 5.3.3夹紧方案的确定54 5.4夹具的装配要求及使用注意事项54 总结56 致谢57 参考文献58