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
Machi
ni
ng Process Valve Rocker Shaft a
nd Typical Fixture Desig
n of the Beari
ng Parts 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
n valve 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 process was 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 assembly drawi
ng of this typical fixture a
nd clamp parts map specific. Processi
ng tech
nology of 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. Key Words: Valve rocker shaft beari
ng; Mecha
nical processi
ng; Processi
ng tech
nology; Typical jig 目录 1绪论1 1.1课题研究意义1 1.2国内外相关研究情况2 1.3本课题主要内容和拟采用的研究方案3 1.3.1课题研究主要内容3 1.3.2拟采用的研究方案4 2零件的分析5 2.1零件的作用5 2.2零件的结构分析5 2.3零件的工艺分析6 2.4零件的生产类型6 3机械加工工艺规程设计8 3.1确定毛坯的制造形式8 3.2定位基准的选择8 3.2.1粗基准的选择8 3.2.2精基准的选择8 3.3制定机械加工工艺路线9 3.4工艺方案的比较与分析10 3.5机械加工余量、工序尺寸及毛坯尺寸的确定10 3.6选择加工设备及刀、夹、量具11 3.7确定切削用量及基本工时12 4铣50底面的夹具设计20 4.1铣床夹具设计特点20 4.1.1铣床夹具的主要类型及结构形式20 4.1.2铣床夹具设计要点20 4.2定位部分设计21 4.2.1问题的提出21 4.2.2定位基准点的选择21 4.2.3定位元件的设计21 4.3切削力及夹紧力的计算21 4.4定向键与对刀装置设计23 4.5夹具设计及操作简要说明24 5车Φ 32两端面的夹具设计25 5.1车床夹具设计特点25 5.1.1车床夹具的主要类型25 5.1车床夹具设计要点25 5.2定位部分设计26 5.2.1问题提出26 5.2.2定位基准的选择26 5.2.3定位元件的设计26 5.3切削力和夹紧力的计算26 5.4夹具设计及简要操作说明26 6钻2×Φ12通孔夹具设计27 6.1钻床夹具的设计特点27 6.1.1钻床夹具的主要类型27 6.1.2钻床夹具的设计要点27 6.2问题的提出28 6.3定位基准的选择28 6.4定位元件的设计28 6.5切削力和夹紧力的计算28 6.6定位误差分析29 6.7夹具设计及简要操作说明29 7结论30 参考文献31 致谢32
展开...
ni
ng Process Valve Rocker Shaft a
nd Typical Fixture Desig
n of the Beari
ng Parts 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
n valve 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 process was 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 assembly drawi
ng of this typical fixture a
nd clamp parts map specific. Processi
ng tech
nology of 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. Key Words: Valve rocker shaft beari
ng; Mecha
nical processi
ng; Processi
ng tech
nology; Typical jig 目录 1绪论1 1.1课题研究意义1 1.2国内外相关研究情况2 1.3本课题主要内容和拟采用的研究方案3 1.3.1课题研究主要内容3 1.3.2拟采用的研究方案4 2零件的分析5 2.1零件的作用5 2.2零件的结构分析5 2.3零件的工艺分析6 2.4零件的生产类型6 3机械加工工艺规程设计8 3.1确定毛坯的制造形式8 3.2定位基准的选择8 3.2.1粗基准的选择8 3.2.2精基准的选择8 3.3制定机械加工工艺路线9 3.4工艺方案的比较与分析10 3.5机械加工余量、工序尺寸及毛坯尺寸的确定10 3.6选择加工设备及刀、夹、量具11 3.7确定切削用量及基本工时12 4铣50底面的夹具设计20 4.1铣床夹具设计特点20 4.1.1铣床夹具的主要类型及结构形式20 4.1.2铣床夹具设计要点20 4.2定位部分设计21 4.2.1问题的提出21 4.2.2定位基准点的选择21 4.2.3定位元件的设计21 4.3切削力及夹紧力的计算21 4.4定向键与对刀装置设计23 4.5夹具设计及操作简要说明24 5车Φ 32两端面的夹具设计25 5.1车床夹具设计特点25 5.1.1车床夹具的主要类型25 5.1车床夹具设计要点25 5.2定位部分设计26 5.2.1问题提出26 5.2.2定位基准的选择26 5.2.3定位元件的设计26 5.3切削力和夹紧力的计算26 5.4夹具设计及简要操作说明26 6钻2×Φ12通孔夹具设计27 6.1钻床夹具的设计特点27 6.1.1钻床夹具的主要类型27 6.1.2钻床夹具的设计要点27 6.2问题的提出28 6.3定位基准的选择28 6.4定位元件的设计28 6.5切削力和夹紧力的计算28 6.6定位误差分析29 6.7夹具设计及简要操作说明29 7结论30 参考文献31 致谢32
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