机床底座加工工艺及铣底面夹具设计
摘要
现代化的机械行业结构变化很大,对于加工单位来说设计工艺水平对他们的影响是非常关键的。夹具行业的发展是非常快的,
本次研究的对象是机床底座。研究内容有工艺分析及夹具设计。机床底座是机床上不能缺少的零件之一,为机床正常运作提供保障。通过对零件图的分析决定设计铣削加工零件底面,铣床型号X52K立式铣床。
一开始阐述了零件,之后将毛坯的制造形式确定下来,将工艺路线定下来,还有将机械加工余量,切削余量等等都定下来。绘制零件图和毛坯图。设计专用夹具的时候,将定位方案,还有夹紧方案都定下来,确定定位零部件,夹紧零部件,确定下导向装置等等。计算切削力和夹紧力。通过设计整个装置都是非常便利的,夹紧要求完全可以实现。
关键词:机床底座、工艺、铣削、底面、立式铣床
ABSTRACT
The structure of moder
n machi
nery i
ndustry has cha
nged greatly. For processi
ng u
nits, the i
nflue
nce of desig
n level isvery critical. The developme
nt of the fixture i
ndustry isvery fast. The object of this study is the base of the machi
ne tool. The research co
nte
nt i
ncludes process a
nalysis a
nd fixture desig
n. The machi
ne tool base is o
ne of the parts that ca
n
not be missi
ng o
n the machi
ne tool, providi
ng guara
ntee for the
normal operatio
n of the machi
ne tool. Through the a
nalysis of the part drawi
ng,we decided to desig
n the milli
ng part bottom a
nd the milli
ng machi
ne model X52Kvertical milli
ng machi
ne. I
n the begi
n
ni
ng, the partswere elaborated, the
n the form of the bla
nkwas determi
ned, the process routewas fixed, a
nd the machi
ni
ng allowa
nce, the cutti
ng margi
n a
nd so o
nwere fixed. Draw part drawi
ng a
nd bla
nk map. Whe
n the special fixture is desig
ned, the positio
ni
ng scheme a
nd the clampi
ng scheme are fixed, the positio
ni
ng parts, the clampi
ng parts, the guida
nce device a
nd so o
n are determi
ned. The cutti
ng force a
nd clampi
ng force are calculated. Through the desig
n of thewhole device isvery co
nve
nie
nt, clampi
ng requireme
nts ca
n be fully realized. Keywords: machi
ne tool base, process, milli
ng, bottom a
ndvertical milli
ng machi
ne 目录 摘要I ABSTRACT II 第一章绪论1 1.1机床夹具的发展概括1 1.2机床夹具的发展方向2 1.3机床夹具的组成3 1.4机床夹具设计的基本要求4 第二章零件的工艺性分析6 2.1机械加工工艺规程的概述6 2.2机械加工工艺规程的作用6 2.3机械加工工艺规程制定的原则6 2.4机械加工工艺规程应满足的使用要求7 2.5零件的组成表面、技术要求及形位公差分析8 2.5.1零件的组成表面分析8 2.5.2零件的技术要求分析8 2.5.3零件的形位公差分析8 2.6零件的作用8 2.7零件的工艺性审查9 2.8确定零件的生产类型9 第三章拟定零件工艺路线及确定毛坯11 3.1选择定位基准11 3.1.1粗基准的选择11 3.1.2精基准的选择11 3.2工艺过程设计中应考虑的主要问题12 3.2.1加工方法选择的原则12 3.2.2加工阶段的划分12 3.2.3工序的合理组合13 3.3工艺路线的选择、比较与确定14 3.4零件毛坯的确定16 3.4.1毛坯的结构工艺要求16 3.4.2毛坯形状、尺寸确定的要求16 3.5机床、夹具、刀具及量具的确定17 3.6零件加工余量的确定18 3.7切削用量及时间定额的计算20 第四章专用夹具设计31 4.1问题的提出31 4.2选择定位方案和定位元件31 4.3选择夹紧方案和夹紧元件32 4.4夹具体的设计32 4.5导向装置选择33 4.6铣削力计算33 4.7夹紧力计算33 4.8定位误差分析34 结论35 致谢36 参考文献37
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n machi
nery i
ndustry has cha
nged greatly. For processi
ng u
nits, the i
nflue
nce of desig
n level isvery critical. The developme
nt of the fixture i
ndustry isvery fast. The object of this study is the base of the machi
ne tool. The research co
nte
nt i
ncludes process a
nalysis a
nd fixture desig
n. The machi
ne tool base is o
ne of the parts that ca
n
not be missi
ng o
n the machi
ne tool, providi
ng guara
ntee for the
normal operatio
n of the machi
ne tool. Through the a
nalysis of the part drawi
ng,we decided to desig
n the milli
ng part bottom a
nd the milli
ng machi
ne model X52Kvertical milli
ng machi
ne. I
n the begi
n
ni
ng, the partswere elaborated, the
n the form of the bla
nkwas determi
ned, the process routewas fixed, a
nd the machi
ni
ng allowa
nce, the cutti
ng margi
n a
nd so o
nwere fixed. Draw part drawi
ng a
nd bla
nk map. Whe
n the special fixture is desig
ned, the positio
ni
ng scheme a
nd the clampi
ng scheme are fixed, the positio
ni
ng parts, the clampi
ng parts, the guida
nce device a
nd so o
n are determi
ned. The cutti
ng force a
nd clampi
ng force are calculated. Through the desig
n of thewhole device isvery co
nve
nie
nt, clampi
ng requireme
nts ca
n be fully realized. Keywords: machi
ne tool base, process, milli
ng, bottom a
ndvertical milli
ng machi
ne 目录 摘要I ABSTRACT II 第一章绪论1 1.1机床夹具的发展概括1 1.2机床夹具的发展方向2 1.3机床夹具的组成3 1.4机床夹具设计的基本要求4 第二章零件的工艺性分析6 2.1机械加工工艺规程的概述6 2.2机械加工工艺规程的作用6 2.3机械加工工艺规程制定的原则6 2.4机械加工工艺规程应满足的使用要求7 2.5零件的组成表面、技术要求及形位公差分析8 2.5.1零件的组成表面分析8 2.5.2零件的技术要求分析8 2.5.3零件的形位公差分析8 2.6零件的作用8 2.7零件的工艺性审查9 2.8确定零件的生产类型9 第三章拟定零件工艺路线及确定毛坯11 3.1选择定位基准11 3.1.1粗基准的选择11 3.1.2精基准的选择11 3.2工艺过程设计中应考虑的主要问题12 3.2.1加工方法选择的原则12 3.2.2加工阶段的划分12 3.2.3工序的合理组合13 3.3工艺路线的选择、比较与确定14 3.4零件毛坯的确定16 3.4.1毛坯的结构工艺要求16 3.4.2毛坯形状、尺寸确定的要求16 3.5机床、夹具、刀具及量具的确定17 3.6零件加工余量的确定18 3.7切削用量及时间定额的计算20 第四章专用夹具设计31 4.1问题的提出31 4.2选择定位方案和定位元件31 4.3选择夹紧方案和夹紧元件32 4.4夹具体的设计32 4.5导向装置选择33 4.6铣削力计算33 4.7夹紧力计算33 4.8定位误差分析34 结论35 致谢36 参考文献37
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