摘要 气门摇杆轴支座是柴油机一个主要零件，是柴油机摇杆座的结合部。本文主要论述了气门摇杆轴支座的加工工艺及其夹具设计。气门摇杆轴支座的尺寸精度、形状精度以及位置精度的要求都很高，而连杆的刚性比较差，形状复杂，容易产生变形，因此在安排工艺过程时，就需要把各主要表面的粗精加工工序分开，并使工序集中。逐步减少加工余量、切削力及内应力的作用，并修正加工后的变形，就能最后达到零件的技术要求。设计气门摇杆轴支座零件的机械加工工艺规程及铣3轴向槽工艺装备夹具设计，使我学习到了许多机械加工的专业知识和实践内容。 Abstract The valve rocker shaft support is a major part of the diesel e
ngi
ne a
nd the joi
nt of the rocker seat of the diesel e
ngi
ne. This paper mai
nly discusses the processi
ng tech
nology a
nd fixture desig
n of valve rocker shaft support. The requireme
nts for the dime
nsio
nal accuracy, shape accuracy a
nd positio
n accuracy of the valve rocker shaft support are very high, while the rigidity of the co
n
necti
ng rod is relatively poor, the shape is complex, a
nd it is easy to produce deformatio
n. Therefore, whe
n arra
ngi
ng the process, it is
necessary to separate the rough a
nd fi
nish machi
ni
ng processes of the mai
n surfaces a
nd ce
ntralize the process. Gradually reduce the role of machi
ni
ng allowa
nce, cutti
ng force a
nd i
nter
nal stress, a
nd correct the deformatio
n after machi
ni
ng, so as to fi
nally meet the tech
nical requireme
nts of parts. I lear
ned a lot of professio
nal k
nowledge a
nd practical co
nte
nt of machi
ni
ng by desig
ni
ng the machi
ni
ng process specificatio
n of valve rocker shaft support parts a
nd the fixture desig
n of milli
ng 3-axial groove process equipme
nt. 目录 1零件的分析1 1.1零件的作用1 1.2零件的工艺分析1 2.1确定毛坯种类1 2.2确定毛坯的尺寸公差和机械加工余量： 2 2.3绘制铸件零件图： 3 3、拟定零件工艺路线3 3.1定位基准的选择： 3 3.2表面加工方法的确定： 3 3.3加工阶段的划分： 4 3.4工序的集中和分散： 4 3.5工序顺序的安排： 4 3.5.1、机械加工工序4 3.6确定工艺路线： 5 3.7选择加工设备及刀、夹、量具5 4、切削用量、时间定额的计算6 5、机床夹具设计7 6、学习体会8 7、参考文献10