摇臂加工工艺分析与夹具设计
摘要
摇臂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,定位,切削用量,夹紧
Abstract
The bolt body parts a
nd milli
ng fixture desig
n process is the desig
n process desig
n, i
ncludi
ng machi
ni
ng process desig
n a
nd fixture three. I
n process desig
n should first of all parts for a
nalysis, to u
ndersta
nd part of the process to desig
n bla
nk structure, a
nd choose the good parts machi
ni
ng datum, desig
n the process routes of the parts; the
n the parts of each step i
n the process to the size calculatio
n, the key is to determi
ne the craft equipme
nt a
nd the cutti
ng dosage of each worki
ng procedure desig
n; the
n the special fixture, the fixture for the various compo
ne
nts of the desig
n, such as the co
n
necti
ng part positio
ni
ng devices, clampi
ng eleme
nt, a guide eleme
nt, fixture a
nd machi
ne tools a
nd other compo
ne
nts; positio
ni
ng error calculated by the a
nalysis of fixture, jig structure the ratio
nality a
nd the deficie
ncy, pay atte
ntio
n to improvi
ng a
nd will desig
n i
n. Keywords: process, positio
ni
ng, cutti
ng dosage, clampi
ng, 目录 第1章绪论3 第2章零件的分析4 2.1零件的作用4 2.2零件的工艺分析4 第3章零件的工艺规程5 3.1确定毛坯的制造形式5 3.2摇臂加工的主要问题和工艺过程设计所应采取的相应措施5 3.2.1孔和平面的加工顺序5 3.2.2孔系加工方案选择5 3.3摇臂加工定位基准的选择6 3.3.1粗基准的选择6 3.3.2精基准的选择6 3.4摇臂加工主要工序安排6 3.5毛坯尺寸的确定9 第4章确定切削用量及基本时间11 第5章钻削大端14锁紧孔夹具设计25 5.1研究原始资料25 5.2定位方案与定位元件25 5.3夹紧机构26 5.4切削力及夹紧力的计算27 5.5误差分析与计算28 5.6零、部件的设计与选用29 5.6.1定位销选用29 5.6.2钻套、衬套、钻模板设计与选用30 5.7钻套、衬套、钻模板设计与选用32 5.8确定夹具体结构尺寸和总体结构34 5.9夹具设计及操作的简要说明36 总结37 参考文献38 致谢39
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nd milli
ng fixture desig
n process is the desig
n process desig
n, i
ncludi
ng machi
ni
ng process desig
n a
nd fixture three. I
n process desig
n should first of all parts for a
nalysis, to u
ndersta
nd part of the process to desig
n bla
nk structure, a
nd choose the good parts machi
ni
ng datum, desig
n the process routes of the parts; the
n the parts of each step i
n the process to the size calculatio
n, the key is to determi
ne the craft equipme
nt a
nd the cutti
ng dosage of each worki
ng procedure desig
n; the
n the special fixture, the fixture for the various compo
ne
nts of the desig
n, such as the co
n
necti
ng part positio
ni
ng devices, clampi
ng eleme
nt, a guide eleme
nt, fixture a
nd machi
ne tools a
nd other compo
ne
nts; positio
ni
ng error calculated by the a
nalysis of fixture, jig structure the ratio
nality a
nd the deficie
ncy, pay atte
ntio
n to improvi
ng a
nd will desig
n i
n. Keywords: process, positio
ni
ng, cutti
ng dosage, clampi
ng, 目录 第1章绪论3 第2章零件的分析4 2.1零件的作用4 2.2零件的工艺分析4 第3章零件的工艺规程5 3.1确定毛坯的制造形式5 3.2摇臂加工的主要问题和工艺过程设计所应采取的相应措施5 3.2.1孔和平面的加工顺序5 3.2.2孔系加工方案选择5 3.3摇臂加工定位基准的选择6 3.3.1粗基准的选择6 3.3.2精基准的选择6 3.4摇臂加工主要工序安排6 3.5毛坯尺寸的确定9 第4章确定切削用量及基本时间11 第5章钻削大端14锁紧孔夹具设计25 5.1研究原始资料25 5.2定位方案与定位元件25 5.3夹紧机构26 5.4切削力及夹紧力的计算27 5.5误差分析与计算28 5.6零、部件的设计与选用29 5.6.1定位销选用29 5.6.2钻套、衬套、钻模板设计与选用30 5.7钻套、衬套、钻模板设计与选用32 5.8确定夹具体结构尺寸和总体结构34 5.9夹具设计及操作的简要说明36 总结37 参考文献38 致谢39
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