摘要 本设计涉及到机械制造工艺及机床夹具设计、金属切削机床、公差和测量等方面的知识。 变速阀芯的专用夹具设计。在设计的过程中应该首先理解的分析部分,工序过程的设计一个毛坯的结构,并选择好零件的加工基准,设计出零件的工艺路线;然后每个切削用量的部分步骤大小计算,是决定工艺的关键设备和切割过程的各种设计参数,然后一个专用夹具,夹具选择各种组件的设计,如定位和夹紧元件连接部分,导向元件,夹具和机床和其他组件,定位误差计算夹具,分析夹具结构的合理性和不足之处,改进和设计。 关键词:工序、工艺、切削参数、夹紧、定位、误差。 ABSTRCT This desig
n relates to the mecha
nical ma
nufacturi
ng tech
nology a
nd machi
ne tool fixture desig
n, metal cutti
ng machi
ne tools, tolera
nces a
nd measureme
nts, a
nd other aspects of k
nowledge. The machi
ni
ng process a
nd fixture desig
n of the base co
nsists of three parts, i
ncludi
ng process desig
n, process desig
n a
nd special fixture desig
n. I
n desig
n process should first u
ndersta
nd the a
nalysis, structure of the process desig
n of a bla
nk, a
nd choose the good parts machi
ni
ng refere
nce to desig
n parts of the process route; the
n calculate the amou
nt of each cutti
ng part of the step size, the decisio
n process of key equipme
nt a
nd cutti
ng process of various desig
n parameters a
nd a special fixture, the fixture selectio
n desig
n of various compo
ne
nts, such as positio
ni
ng a
nd clampi
ng eleme
nts co
n
necti
ng part, compo
ne
nt orie
nted, tools a
nd fixtures a
nd other compo
ne
nts, positio
ni
ng error calculate fixture, fixture structure of ratio
nality a
nd disadva
ntage a
nalysis, improveme
nt a
nd desig
n. Key words: process, process, cutti
ng parameters, clampi
ng, positio
ni
ng, error. 目录 ABSTRCT 3 序言1 一零件的结构工艺分析和毛坯确定2 1.1零件的作用2 1.2零件的工艺性分析2 1.3确定毛坯类型与制造方法2 1.4毛坯形状及尺寸3 2工艺路线的拟定4 2.1定位基准的选择4 2.1.1粗基准的选择原则4 2.1.2精基准的选择原则4 2.2加工顺序的安排5 2.3热处理工序、辅助工序的安排5 2.4拟定工艺路线6 2.5切削用量的选择与确定7 三铣夹具设计9 3.1问题的提出9 3.2定位基准的选择9 3.3定位方案的设计9 3.4夹紧方案的设计10 3.4.1夹紧装置的组成及基本要求11 3.4.2夹紧装置的确定11 3.5切削力及夹紧力计算11 3.6定位误差分析14 3.7对刀装置设计14 3.8夹具体的设计17 3.9夹具设计及操作简要说明18 总结19 致谢21 参考文献22