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。 扁叉的加工工艺和夹具设计包括三个部分,包括工艺设计、工序设计和专用夹具设计。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 一钻孔夹具设计2 1.1钻床的概述2 1.2问题的提出3 1.3定位基准的选择3 1.4定位方案的设计4 1.5夹紧方案的设计5 1.5.1典型夹紧结构5 1.5.2定心夹紧机构5 1.6切削力和夹紧力的计算6 1.7钻模板的选择6 1.8钻套的设计10 1.9定位误差分析14 1.10夹具设计及操作的简要说明15 总结16 致谢18 参考文献19