气门摇杆轴支座零件机械加工工艺及其典型夹具设计
摘要
气门摇杆轴支座是柴油机一个重要零件,是柴油机摇杆座的结合部。本设计在气门摇杆轴支座工艺规程设计过程中,详细的分析了摇杆轴支座的加工工艺,通过工艺方案的比较与分析得到了符合技术要求的工序,形成了机械加工工艺过程卡和机械加工工序卡。并完成了铣削和车削以及钻孔夹具的设计,阐述了定位方案的选择、夹紧方案的确定、夹具体设计,运用AutoCAD完成了此典型夹具的装配图和夹具体的零件图。本设计的加工工艺合理,夹具可行、高效、省力,能满足零件的加工要求,保证其加工质量。
关键词:气门摇杆轴支座;机械加工;加工工艺;典型夹具
Beari
ng Parts Machi
ni
ng Process Valve Rocker Shaft a
nd Its Typical Fixture Desig
n Abstract Valve rocker shaft beari
ng is a
n importa
nt part of the diesel e
ngi
ne,is a combi
natio
n of diesel e
ngi
ne rocker seat.This graduatio
n desig
n i
nvalve rocker shaft beari
ng process desig
n process,a detailed a
nalysis of the process of the rocker shaft beari
ng,meet the tech
nical requireme
nts of the processwas obtai
ned through the compariso
n a
nd a
nalysis of the process,formi
ng a machi
ni
ng process card a
nd machi
ni
ng process card.A
nd fi
nish milli
ng a
nd tur
ni
ng a
nd drilli
ng fixture desig
n,elaborated the localizatio
n scheme selectio
n,clampi
ng scheme,clamp desig
n,AutoCAD is used to complete the assemblydrawi
ng of this typical fixture a
nd clamp parts map specific.Processi
ng tech
nologyof the desig
n is reaso
nable,feasible,high efficie
ncy,labor savi
ng fixture,ca
n meet the processi
ng requireme
nts of parts,e
nsure the machi
ni
ng quality. KeyWords:valve rocker shaft beari
ng; mecha
nical processi
ng; processi
ng tech
nology; typical jig 目录 摘要1 Abstract 2 1绪论2 1.1题目背景和研究意义2 1.2国内外相关研究情况3 1.2.1国内夹具发展史3 1.2.2国外夹具发展史3 1.2.3国内外机床夹具发展现状4 1.3本课题研究的主要内容和拟采用的研究方案4 1.3.1课题研究主要内容4 1.3.2拟采用的研究方案5 2零件的分析6 2.1零件的作用6 2.3零件的工艺分析7 2.4零件的生产类型7 3机械加工工艺规程设计9 3.1确定毛坯的的制造形式9 3.2定位基准的选择9 3.2.1精基准的选择9 3.2.2粗基准的选择10 3.3制定机械加工工艺路线10 3.4工艺方案的比较与分析11 3.5机械加工余量、工序尺寸及毛坯尺寸的确定11 3.6选择加工设备及刀、夹、量具12 3.7确定切削用量及基本工时13 4铣50底面的夹具设计21 4.1铣床夹具设计特点21 4.1.1铣床夹具的主要类型及结构形式21 4.1.2铣床夹具的设计要点21 4.2定位部分设计22 4.2.1问题的提出22 4.2.2定位基准的选择22 4.2.3定位元件的设计22 4.3切削力及夹紧力计算22 4.4定向键与对刀装置设计24 4.5夹具设计及操作简要说明25 结论26 参考文献27 致谢28
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ng Parts Machi
ni
ng Process Valve Rocker Shaft a
nd Its Typical Fixture Desig
n Abstract Valve rocker shaft beari
ng is a
n importa
nt part of the diesel e
ngi
ne,is a combi
natio
n of diesel e
ngi
ne rocker seat.This graduatio
n desig
n i
nvalve rocker shaft beari
ng process desig
n process,a detailed a
nalysis of the process of the rocker shaft beari
ng,meet the tech
nical requireme
nts of the processwas obtai
ned through the compariso
n a
nd a
nalysis of the process,formi
ng a machi
ni
ng process card a
nd machi
ni
ng process card.A
nd fi
nish milli
ng a
nd tur
ni
ng a
nd drilli
ng fixture desig
n,elaborated the localizatio
n scheme selectio
n,clampi
ng scheme,clamp desig
n,AutoCAD is used to complete the assemblydrawi
ng of this typical fixture a
nd clamp parts map specific.Processi
ng tech
nologyof the desig
n is reaso
nable,feasible,high efficie
ncy,labor savi
ng fixture,ca
n meet the processi
ng requireme
nts of parts,e
nsure the machi
ni
ng quality. KeyWords:valve rocker shaft beari
ng; mecha
nical processi
ng; processi
ng tech
nology; typical jig 目录 摘要1 Abstract 2 1绪论2 1.1题目背景和研究意义2 1.2国内外相关研究情况3 1.2.1国内夹具发展史3 1.2.2国外夹具发展史3 1.2.3国内外机床夹具发展现状4 1.3本课题研究的主要内容和拟采用的研究方案4 1.3.1课题研究主要内容4 1.3.2拟采用的研究方案5 2零件的分析6 2.1零件的作用6 2.3零件的工艺分析7 2.4零件的生产类型7 3机械加工工艺规程设计9 3.1确定毛坯的的制造形式9 3.2定位基准的选择9 3.2.1精基准的选择9 3.2.2粗基准的选择10 3.3制定机械加工工艺路线10 3.4工艺方案的比较与分析11 3.5机械加工余量、工序尺寸及毛坯尺寸的确定11 3.6选择加工设备及刀、夹、量具12 3.7确定切削用量及基本工时13 4铣50底面的夹具设计21 4.1铣床夹具设计特点21 4.1.1铣床夹具的主要类型及结构形式21 4.1.2铣床夹具的设计要点21 4.2定位部分设计22 4.2.1问题的提出22 4.2.2定位基准的选择22 4.2.3定位元件的设计22 4.3切削力及夹紧力计算22 4.4定向键与对刀装置设计24 4.5夹具设计及操作简要说明25 结论26 参考文献27 致谢28
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247947
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