机械5

盘套类加工工艺及车床夹具设计 中文摘要 盘套类零件加工工艺及车床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 外文摘要 Title： The Wheel cover parts processi
ng tech
nology a
nd fixture desig
n Abstract： Wheel cover parts of the processi
ng tech
nology a
nd the lathe fixture 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
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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
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n to improvi
ng a
nd will desig
n i
n. Keywords：process, process, cutti
ng dosage, clampi
ng, positio
ni
n 目录 1序言1 2零件的分析2 2.1零件的形状2 2.2零件的工艺分析2 3工艺规程设计3 3.1确定毛坯的制造形式3 3.2基面的选择3 3.3制定工艺路线3 3.3.1工艺路线方案一4 3.3.2工艺路线方案二4 3.3.3工艺方案的比较与分析4 3.4选择加工设备和工艺装备5 3.4.1机床选用5 3.4.2选择刀具5 3.4.3选择量具5 3.5机械加工余量、工序尺寸及毛坯尺寸的确定5 3.6确定切削用量及基本工时7 4车床夹具设计17 4.1车床夹具设计要求说明17 4.2车床夹具的设计要点17 4.3定位机构19 4.4夹紧机构19 4.5零件的车床夹具的加工误差分析19 4.6确定夹具体结构尺寸和总体结构20 4.7零件的车床专用夹具简单使用说明21 总结23 致谢24 参考文献25