圆周支座工艺规程及专用夹具设计
摘要
圆周支座零件加工工艺及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
A machi
ni
ng process a
nd fixture desig
n is the desig
n process, i
ncludi
ng the desig
n of beari
ng parts processi
ng process desig
n a
nd the three part special fixture. I
n the process of desig
n should first of all parts to a
nalyze, u
ndersta
nd parts of the process a
nd the
n desig
n a bla
nk structure, a
nd choose the good parts of the machi
ni
ng datum, desig
ns the process routes of the parts; the
n the parts each step process dime
nsio
n calculatio
n, the key is to determi
ne the process equipme
nt a
nd cutti
ng the amou
nt of eachworki
ng procedure desig
n; the
n a special fixture, fixture for thevarious compo
ne
nts of a desig
n, such as the co
n
necti
ng part positio
ni
ng device, clampi
ng eleme
nt, a guide eleme
nt, clamp a
nd the machi
ne tool a
nd other compo
ne
nts; the positio
ni
ng error caused calculate fixturewhe
n positio
ni
ng, a
nalysis of the ratio
nality a
nd deficie
ncy of fixture structure, pay atte
ntio
n to improvi
ng a
ndwill desig
n i
n. Keywords: process, process, cutti
ng, clampi
ng, positio
ni
ng 目录 摘要I Abstract II 第1章绪论1 第2章加工工艺规程设计2 2.1零件的分析2 2.1.1零件的作用2 2.1.2零件的工艺分析3 2.2圆周支座零件加工的主要问题和工艺过程设计所应采取的相应措施3 2.2.1孔和平面的加工顺序3 2.2.2孔系加工方案选择3 2.3圆周支座零件加工定位基准的选择4 2.3.1粗基准的选择4 2.3.2精基准的选择4 2.4圆周支座零件加工主要工序安排4 2.5机械加工余量、工序尺寸及毛坯尺寸的确定6 2.6确定切削用量及基本工时(机动时间) 6 第3章钻Φ13孔夹具设计14 3.1夹具的夹紧装置和定位装置14 3.2夹具的导向14 3.3切削力及夹紧力的计算15 3.4钻孔与工件之间的切屑间隙17 3.5钻模板17 3.6定位误差的分析17 3.7钻套、衬套、钻模板设计与选用18 3.8确定夹具体结构和总体结构19 3.9夹具设计及操作的简要说明20 结论21 参考文献22 致谢23
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ni
ng process a
nd fixture desig
n is the desig
n process, i
ncludi
ng the desig
n of beari
ng parts processi
ng process desig
n a
nd the three part special fixture. I
n the process of desig
n should first of all parts to a
nalyze, u
ndersta
nd parts of the process a
nd the
n desig
n a bla
nk structure, a
nd choose the good parts of the machi
ni
ng datum, desig
ns the process routes of the parts; the
n the parts each step process dime
nsio
n calculatio
n, the key is to determi
ne the process equipme
nt a
nd cutti
ng the amou
nt of eachworki
ng procedure desig
n; the
n a special fixture, fixture for thevarious compo
ne
nts of a desig
n, such as the co
n
necti
ng part positio
ni
ng device, clampi
ng eleme
nt, a guide eleme
nt, clamp a
nd the machi
ne tool a
nd other compo
ne
nts; the positio
ni
ng error caused calculate fixturewhe
n positio
ni
ng, a
nalysis of the ratio
nality a
nd deficie
ncy of fixture structure, pay atte
ntio
n to improvi
ng a
ndwill desig
n i
n. Keywords: process, process, cutti
ng, clampi
ng, positio
ni
ng 目录 摘要I Abstract II 第1章绪论1 第2章加工工艺规程设计2 2.1零件的分析2 2.1.1零件的作用2 2.1.2零件的工艺分析3 2.2圆周支座零件加工的主要问题和工艺过程设计所应采取的相应措施3 2.2.1孔和平面的加工顺序3 2.2.2孔系加工方案选择3 2.3圆周支座零件加工定位基准的选择4 2.3.1粗基准的选择4 2.3.2精基准的选择4 2.4圆周支座零件加工主要工序安排4 2.5机械加工余量、工序尺寸及毛坯尺寸的确定6 2.6确定切削用量及基本工时(机动时间) 6 第3章钻Φ13孔夹具设计14 3.1夹具的夹紧装置和定位装置14 3.2夹具的导向14 3.3切削力及夹紧力的计算15 3.4钻孔与工件之间的切屑间隙17 3.5钻模板17 3.6定位误差的分析17 3.7钻套、衬套、钻模板设计与选用18 3.8确定夹具体结构和总体结构19 3.9夹具设计及操作的简要说明20 结论21 参考文献22 致谢23
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