机械5

摘要 本次设计内容涉及了机械制造工艺及机床夹具设计、金属切削机床、公差配合与测量等多方面的知识。 插入耳环的工艺规程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 This desig
n co
nte
nt i
nvolves the mecha
nical ma
nufacturi
ng process a
nd fixture desig
n, metal cutti
ng machi
ne, tolera
nce a
nd measureme
nt a
nd other aspects of k
nowledge. The process specificatio
n a
nd fixture desig
n of i
nsert Earri
ngs i
nclude three parts: process desig
n of parts processi
ng, process desig
n a
nd desig
n of special fixture. I
n the process desig
n,we should first a
nalyze the parts, u
ndersta
nd the process of the parts, the
n desig
n the structure of the bla
nk, a
nd select the processi
ng be
nchmark of the parts, a
nd desig
n the process route of the parts; the
n calculate the size of eachworki
ng step of the part, the key is to determi
ne the process equipme
nt a
nd cutti
ng amou
nt of each process; the
n, desig
n the special fixture, select a
nd desig
n the fixture The positio
ni
ng error is calculated, the ratio
nality a
nd deficie
ncy of the fixture structure are a
nalyzed, a
nd the improveme
nt i
n the future desig
n is paid atte
ntio
n to. Keywords: process, process, cutti
ng parameters, clampi
ng, positio
ni
ng, error. 目录 摘要I Abstract II 序言1 第一章零件分析1 1.1零件的功用分析1 1.2零件的工艺分析1 第二章机械加工工艺规程制定2 2.1选择毛坯种类并确定制造方法2 2.2基面的选择2 2.3选择加工方法3 2.4制定工艺路线4 2.5确定加工余量及毛坯尺寸5 2.6工序设计6 2.7确定切削用量和基本时间8 第三章.夹具的设计30 结论33 总结34 致谢36 参考文献37