摘要
本次设计内容涉及了机械制造工艺及机床夹具设计、金属切削机床、公差配合与测量等多方面的知识。
变速器叉加工工艺规程及其夹具设计是包括零件加工的工艺设计、工序设计以及专用夹具的设计三部分。在工艺设计中要首先对零件进行分析,了解零件的工艺再设计出毛坯的结构,并选择好零件的加工基准,设计出零件的工艺路线;接着对零件各个工步的工序进行尺寸计算,关键是决定出各个工序的工艺装备及切削用量;然后进行专用夹具的设计,选择设计出夹具的各个组成部件,如定位元件、夹紧元件、引导元件、夹具体与机床的连接部件以及其它部件;计算出夹具定位时产生的定位误差,分析夹具结构的合理性与不足之处,并在以后设计中注意改进。
关键词:工艺、工序、切削用量、夹紧、定位、误差。
ABSTRCT
This desig
n co
nte
nt has i
nvolved the machi
ne ma
nufacture craft a
nd the e
ngi
ne bed jig desig
n, the metal-cutti
ng machi
ne tool, the commo
n differe
nce coordi
natio
n a
nd the survey a
nd so o
n the various k
nowledge. The reductio
n gear box body compo
ne
nts tech
nological process a
nd its the processi
ng hole jig desig
n is i
ncludes the compo
ne
nts processi
ng the tech
nological desig
n, the worki
ng procedure desig
n as well as the u
nit clamp desig
n three parts. Must first carry o
n the a
nalysis i
n the tech
nological desig
n to the compo
ne
nts, u
nderstood the compo
ne
nts the craft redesig
ns the semi fi
nished materials the structure, a
nd chooses the good compo
ne
nts the processi
ng datum, desig
ns the compo
ne
nts the craft route; After that is carryi
ng o
n the size computatio
n to a compo
ne
nts each labor step of worki
ng procedure, the key is decides each worki
ng procedure the craft equipme
nt a
nd the cutti
ng specificatio
ns; The
n carries o
n the u
nit clamp the desig
n, the choice desig
ns the jig each compositio
n part, like locates the part, clamps the part, guides the part, to clamp co
ncrete a
nd the e
ngi
ne bed co
n
nectio
n part as well as other parts; Positio
n error which calculates the jig locates whe
n produces, a
nalyzes the jig structure the ratio
nality a
nd the deficie
ncy, a
nd will desig
n i
n later pays atte
ntio
n to the improveme
nt. Keywords: The craft, the worki
ng procedure, the cutti
ng specificatio
ns, clamp, the localizatio
n, the error 目录 ABSTRCT 3 序言5 一零件的分析6 1.1零件的作用6 1.2零件的工艺分析6 二毛坯的确定6 2.1确定毛坯的制造形式6 2.2毛坯形状及尺寸6 三拟定加工工艺路线7 3.1基准的选择7 3.1.1粗基准选择7 3.1.2精基准的选择8 3.2制定工艺路线9 四切削用量及工时计算9 4.1工序1设计9 4.2工序2设计10 4.3工序3设计10 4.4工序4设计11 4.5工序5设计12 4.6工序6设计14 五夹具设计15 5.1夹具体的设计15 5.2定位方案和定位装置的设计16 5.2.1工件定位的基本原理16 5.2.2工件定位的类型16 5.2.3定位基准的选择17 5.2.4工件定位方式及其定位元件17 5.3夹紧方案的确定及装置的设计18 5.3.1夹紧装置的组成18 5.3.2夹紧装置的设计要求18 5.3.3夹紧力的计算19 5.4夹具的精度分析20 总结21 致谢22 参考文献23 序言 机械制造业是制造具有一定形状位置和尺寸的零件和产品,并把它们装备成机械装备的行业。机械制造业的产品既可以直接供人们使用,也可以为其它行业的生产提供装备,社会上有着各种各样的机械或机械制造业的产品。我们的生活离不开制造业,因此制造业是国民经济发展的重要行业,是一个国家或地区发展的重要基础及有力支柱。从某中意义上讲,机械制造水平的高低是衡量一个国家国民经济综合实力和科学技术水平的重要指标。
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n co
nte
nt has i
nvolved the machi
ne ma
nufacture craft a
nd the e
ngi
ne bed jig desig
n, the metal-cutti
ng machi
ne tool, the commo
n differe
nce coordi
natio
n a
nd the survey a
nd so o
n the various k
nowledge. The reductio
n gear box body compo
ne
nts tech
nological process a
nd its the processi
ng hole jig desig
n is i
ncludes the compo
ne
nts processi
ng the tech
nological desig
n, the worki
ng procedure desig
n as well as the u
nit clamp desig
n three parts. Must first carry o
n the a
nalysis i
n the tech
nological desig
n to the compo
ne
nts, u
nderstood the compo
ne
nts the craft redesig
ns the semi fi
nished materials the structure, a
nd chooses the good compo
ne
nts the processi
ng datum, desig
ns the compo
ne
nts the craft route; After that is carryi
ng o
n the size computatio
n to a compo
ne
nts each labor step of worki
ng procedure, the key is decides each worki
ng procedure the craft equipme
nt a
nd the cutti
ng specificatio
ns; The
n carries o
n the u
nit clamp the desig
n, the choice desig
ns the jig each compositio
n part, like locates the part, clamps the part, guides the part, to clamp co
ncrete a
nd the e
ngi
ne bed co
n
nectio
n part as well as other parts; Positio
n error which calculates the jig locates whe
n produces, a
nalyzes the jig structure the ratio
nality a
nd the deficie
ncy, a
nd will desig
n i
n later pays atte
ntio
n to the improveme
nt. Keywords: The craft, the worki
ng procedure, the cutti
ng specificatio
ns, clamp, the localizatio
n, the error 目录 ABSTRCT 3 序言5 一零件的分析6 1.1零件的作用6 1.2零件的工艺分析6 二毛坯的确定6 2.1确定毛坯的制造形式6 2.2毛坯形状及尺寸6 三拟定加工工艺路线7 3.1基准的选择7 3.1.1粗基准选择7 3.1.2精基准的选择8 3.2制定工艺路线9 四切削用量及工时计算9 4.1工序1设计9 4.2工序2设计10 4.3工序3设计10 4.4工序4设计11 4.5工序5设计12 4.6工序6设计14 五夹具设计15 5.1夹具体的设计15 5.2定位方案和定位装置的设计16 5.2.1工件定位的基本原理16 5.2.2工件定位的类型16 5.2.3定位基准的选择17 5.2.4工件定位方式及其定位元件17 5.3夹紧方案的确定及装置的设计18 5.3.1夹紧装置的组成18 5.3.2夹紧装置的设计要求18 5.3.3夹紧力的计算19 5.4夹具的精度分析20 总结21 致谢22 参考文献23 序言 机械制造业是制造具有一定形状位置和尺寸的零件和产品,并把它们装备成机械装备的行业。机械制造业的产品既可以直接供人们使用,也可以为其它行业的生产提供装备,社会上有着各种各样的机械或机械制造业的产品。我们的生活离不开制造业,因此制造业是国民经济发展的重要行业,是一个国家或地区发展的重要基础及有力支柱。从某中意义上讲,机械制造水平的高低是衡量一个国家国民经济综合实力和科学技术水平的重要指标。
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