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。
吊耳前钢板弹簧加工工艺规程及其钻侧孔的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
ABSTRACT
This desig
n co
nte
nt i
nvolves the mecha
nical ma
nufacturi
ng process a
nd fixture desig
n, metal cutti
ng machi
ne, tolera
nce a
nd measureme
nt a
nd other aspects of k
nowledge. The machi
ni
ng process specificatio
n of leaf spri
ng i
n fro
nt of lifti
ng lug a
nd fixture desig
n for side hole drilli
ng i
nclude three parts: process desig
n of parts processi
ng, process desig
n a
nd desig
n of special fixture. I
n the process desig
n,we should first a
nalyze the parts, u
ndersta
nd the process of the parts, the
n desig
n the structure of the bla
nk, a
nd select the processi
ng be
nchmark of the parts, a
nd desig
n the process route of the parts; the
n calculate the size of eachworki
ng step of the part, the key is to determi
ne the process equipme
nt a
nd cutti
ng amou
nt of each process; the
n, desig
n the special fixture, select a
nd desig
n the fixture The positio
ni
ng error is calculated, the ratio
nality a
nd deficie
ncy of the fixture structure are a
nalyzed, a
nd the improveme
nt i
n the future desig
n is paid atte
ntio
n to. Keywords: process, process, cutti
ng parameters, clampi
ng, positio
ni
ng, error 目录 摘要I ABSTRACT II 1绪论1 2前钢板弹簧吊耳加工工艺规程设计2 2.1零件的分析2 2.1.1零件的作用2 1.1.2零件的工艺分析2 2.2工艺过程设计所应采取的相应措施3 2.3前钢板弹簧吊耳加工定位基准的选择3 2.3.1确定毛坯的制造形式3 2.3.2粗基准的选择3 2.3.3精基准的选择4 2.4工艺路线的制定4 2.4.1工艺方案一4 2.4.2工艺方案二4 2.4.3工艺方案的比较与分析5 2.5机械加工余量、工序尺寸及毛坯尺寸的确定5 2.6确定切削用量及基本工时(机动时间) 6 2.7时间定额计算及生产安排12 2.8本章小结14 3钻2-φ10.5孔夹具设计15 3.1问题的提出15 3.2定位基准的选择15 3.3切削力及夹紧力计算15 3.4定位误差分析16 3.5夹具设计及操作简要说明17 总结19 参考文献20 致谢21
展开...
n co
nte
nt i
nvolves the mecha
nical ma
nufacturi
ng process a
nd fixture desig
n, metal cutti
ng machi
ne, tolera
nce a
nd measureme
nt a
nd other aspects of k
nowledge. The machi
ni
ng process specificatio
n of leaf spri
ng i
n fro
nt of lifti
ng lug a
nd fixture desig
n for side hole drilli
ng i
nclude three parts: process desig
n of parts processi
ng, process desig
n a
nd desig
n of special fixture. I
n the process desig
n,we should first a
nalyze the parts, u
ndersta
nd the process of the parts, the
n desig
n the structure of the bla
nk, a
nd select the processi
ng be
nchmark of the parts, a
nd desig
n the process route of the parts; the
n calculate the size of eachworki
ng step of the part, the key is to determi
ne the process equipme
nt a
nd cutti
ng amou
nt of each process; the
n, desig
n the special fixture, select a
nd desig
n the fixture The positio
ni
ng error is calculated, the ratio
nality a
nd deficie
ncy of the fixture structure are a
nalyzed, a
nd the improveme
nt i
n the future desig
n is paid atte
ntio
n to. Keywords: process, process, cutti
ng parameters, clampi
ng, positio
ni
ng, error 目录 摘要I ABSTRACT II 1绪论1 2前钢板弹簧吊耳加工工艺规程设计2 2.1零件的分析2 2.1.1零件的作用2 1.1.2零件的工艺分析2 2.2工艺过程设计所应采取的相应措施3 2.3前钢板弹簧吊耳加工定位基准的选择3 2.3.1确定毛坯的制造形式3 2.3.2粗基准的选择3 2.3.3精基准的选择4 2.4工艺路线的制定4 2.4.1工艺方案一4 2.4.2工艺方案二4 2.4.3工艺方案的比较与分析5 2.5机械加工余量、工序尺寸及毛坯尺寸的确定5 2.6确定切削用量及基本工时(机动时间) 6 2.7时间定额计算及生产安排12 2.8本章小结14 3钻2-φ10.5孔夹具设计15 3.1问题的提出15 3.2定位基准的选择15 3.3切削力及夹紧力计算15 3.4定位误差分析16 3.5夹具设计及操作简要说明17 总结19 参考文献20 致谢21
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