连杆工艺分析及铣夹具设计
摘要
机床夹具设计是现代机械零件制造和加工过程中,不能缺少的组成部分。机床夹具依据其类型不同分成不同种类,以适应不同复杂程度的零件和不同的加工工序和工步等。所以,对其进行研究有意义。
本次研究的对象是CC系列卧式车床上重要零件—CC2108连杆。研究的机床在加工车间使用广泛,CC2108连杆用以连接前后零部件时间运动传递。设计内容包含工艺设计和夹具设计。
在对零件图解读后,确定零件生产类型,编写工艺路线,确定主轴转速、切削量等,填写工序卡。完成零件图、毛坯图绘制。经过分析决定设计铣40右端面铣床夹具,确定定位、夹紧方案;选择定位、夹紧元件;设计夹具体等。
关键词:CC系列、卧式车床、CC2108连杆、工艺、铣40右端面
ABSTRACT
The desig
n of machi
ne tool fixtures is a
n i
ndispe
nsable compo
ne
nt i
n the ma
nufacturi
ng a
nd processi
ng of moder
n machi
ne parts. The machi
ne tool fixtures are divided i
nto differe
nt types depe
ndi
ng o
n their type, so as to adapt to differe
nt complicated parts a
nd differe
nt processi
ng procedures a
nd steps. Therefore, it makes se
nse to study it. The mai
n object of this study is the CC2108 co
n
necti
ng rod, a
n importa
nt part of CC series horizo
ntal lathes. The machi
ne tools studied arewidely used i
n the processi
ngworkshops. The CC2108 co
n
necti
ng rods are used to co
n
nect the fro
nt a
nd rear parts for time-moveme
nt tra
nsmissio
n. Desig
n co
nte
nt i
ncludes process desig
n a
nd fixture desig
n. After i
nterpretatio
n of the parts drawi
ng, determi
ne the type of part productio
n,write the process route, determi
ne the spi
ndle speed, cutti
ng amou
nt, etc., a
nd fill i
n the process card. Complete the drawi
ng of parts a
nd bla
nks. After a
nalysis,we decided to desig
n the right-e
nd milli
ng machi
ne for milli
ng 40, determi
ne the positio
ni
ng a
nd clampi
ng scheme, select the positio
ni
ng a
nd clampi
ng compo
ne
nts, a
nd desig
n the specific fixture. Keywords CC series, horizo
ntal lathe, CC2108 co
n
necti
ng rod, process, milli
ng 40 right e
nd face 目录 摘要I ABSTRACT II 第1章绪论1 1.1机床夹具的概述1 1.2机床夹具的分类1 1.3夹具设计的特点和基本要求2 1.3.1夹具设计的特点2 1.3.2夹具设计的基本要求2 1.4机床夹具在机械加工中的作用3 1.5机床夹具的发展趋势3 第2章零件的工艺性分析5 2.1零件的结构工艺性分析概述5 2.2零件的组成表面、技术要求及形位公差分析5 2.2.1零件的组成表面分析5 2.2.2零件的技术要求分析5 2.2.3零件的形位公差分析5 2.3零件的作用5 2.4零件材料的确定6 2.5确定零件的生产类型6 2.6确定零件的毛坯类型6 第3章拟定零件工艺路线8 3.1选择定位基准8 3.1.1粗基准的选择8 3.1.2精基准的选择8 3.2确定各表面的加工方案8 3.3工艺路线的拟定9 3.4确定机床、夹具、刀具及量具10 3.5确定零件加工余量10 3.6计算切削用量及时间定额12 第4章专用夹具的设计26 4.1选择定位方案和定位元件26 4.2选择夹紧方案和夹紧元件27 4.3夹具体的设计28 4.4选择导向装置—对刀块29 4.5计算铣削力29 4.6计算夹紧力29 4.7分析定位误差30 结论31 致谢32 参考文献33
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n of machi
ne tool fixtures is a
n i
ndispe
nsable compo
ne
nt i
n the ma
nufacturi
ng a
nd processi
ng of moder
n machi
ne parts. The machi
ne tool fixtures are divided i
nto differe
nt types depe
ndi
ng o
n their type, so as to adapt to differe
nt complicated parts a
nd differe
nt processi
ng procedures a
nd steps. Therefore, it makes se
nse to study it. The mai
n object of this study is the CC2108 co
n
necti
ng rod, a
n importa
nt part of CC series horizo
ntal lathes. The machi
ne tools studied arewidely used i
n the processi
ngworkshops. The CC2108 co
n
necti
ng rods are used to co
n
nect the fro
nt a
nd rear parts for time-moveme
nt tra
nsmissio
n. Desig
n co
nte
nt i
ncludes process desig
n a
nd fixture desig
n. After i
nterpretatio
n of the parts drawi
ng, determi
ne the type of part productio
n,write the process route, determi
ne the spi
ndle speed, cutti
ng amou
nt, etc., a
nd fill i
n the process card. Complete the drawi
ng of parts a
nd bla
nks. After a
nalysis,we decided to desig
n the right-e
nd milli
ng machi
ne for milli
ng 40, determi
ne the positio
ni
ng a
nd clampi
ng scheme, select the positio
ni
ng a
nd clampi
ng compo
ne
nts, a
nd desig
n the specific fixture. Keywords CC series, horizo
ntal lathe, CC2108 co
n
necti
ng rod, process, milli
ng 40 right e
nd face 目录 摘要I ABSTRACT II 第1章绪论1 1.1机床夹具的概述1 1.2机床夹具的分类1 1.3夹具设计的特点和基本要求2 1.3.1夹具设计的特点2 1.3.2夹具设计的基本要求2 1.4机床夹具在机械加工中的作用3 1.5机床夹具的发展趋势3 第2章零件的工艺性分析5 2.1零件的结构工艺性分析概述5 2.2零件的组成表面、技术要求及形位公差分析5 2.2.1零件的组成表面分析5 2.2.2零件的技术要求分析5 2.2.3零件的形位公差分析5 2.3零件的作用5 2.4零件材料的确定6 2.5确定零件的生产类型6 2.6确定零件的毛坯类型6 第3章拟定零件工艺路线8 3.1选择定位基准8 3.1.1粗基准的选择8 3.1.2精基准的选择8 3.2确定各表面的加工方案8 3.3工艺路线的拟定9 3.4确定机床、夹具、刀具及量具10 3.5确定零件加工余量10 3.6计算切削用量及时间定额12 第4章专用夹具的设计26 4.1选择定位方案和定位元件26 4.2选择夹紧方案和夹紧元件27 4.3夹具体的设计28 4.4选择导向装置—对刀块29 4.5计算铣削力29 4.6计算夹紧力29 4.7分析定位误差30 结论31 致谢32 参考文献33
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