机械5

摘要 机械制造技术的发达程度突出反应了一个国家或地区的经济实力和综合国力，是一个国家生存、发展与繁荣所依赖的重要基矗本文对一尾座体零件进行加工工艺分析，并对相关工序设计专用夹具。本设计的基本思路是，首先对零件图进行分析，选择毛坯形式、公差及余量。再次是确定加工基准、工艺路线，选择工艺装备，设计各个工序的具体内容，确定切削用量及时间定额等。最后设计关键工序的夹具。合理选择加工基准，加工方法，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。设计的夹具应结构简单，省时省力，装夹方便，并且对相似的零件的加工有通用性。 关键词：工艺；工序；切削用量；夹紧；定位；误差 Abstract The level of the developme
nt of the ma
nufacturi
ng tech
nology is stro
ngly respect the eco
nomic stre
ngth a
nd
natio
nal stre
ngth of a cou
ntry. The existe
nce a
nd the developme
nt of a cou
ntry depe
nds o
n the ma
nufacturi
ng tech
nology.This paper mai
nly discusses the machi
ni
ng tech
nology of a fla
nge a
nd desig
nes these tools used for machi
ni
ng the fla
nge. The basic prodcer of the paper is that first a
nalyi
ng the detail drawi
ng of the fla
nge,choosi
ng the bla
nk,the sizesa
nd the basis,seco
nd, choosi
ng the machi
ne routi
ng, choosi
ng tools for machi
ni
ng the fla
nge，desig
ni
ng details of erevy procedure，third，desig
n the fixture. All these chooses must be right to make sure the fla
nge meeti
ng the tech
nical requireme
nts. The level of the developme
nt of the ma
nufacturi
ng tech
nology is the respo
nse of the eco
nomic stre
ngth a
nd
natio
nal stre
ngth of a cou
ntry. The existe
nce a
nd the developme
nt of a cou
ntry depe
nds o
n the ma
nufacturi
ng tech
nology. All these chooses must be right to make sure the fla
nge meeti
ng the tech
nical requireme
nts. The fixture should save time a
nd force，a
nd should has ge
nerality. The fixture should save time a
nd force，a
nd should has ge
nerality. Key Words: The procers;theworki
ng procedure;the cutti
ng specificatio
ns,clamp； the localizatio
n；the error 目录 1.零件的分析 1.1零件的作用…………………………………………5 1.2零件的工艺分析……………………………………5 2.工艺规程设计 2.1确定零件的生产类型………………………………5 2.2确定毛坯的制造形式………………………………6 2.3基面的选择…………………………………………6 2.4制定工艺路线………………………………………6 2.5机械加工余量、工序尺寸及毛坯尺寸的确定……7 2.6切削用量及基本时间的确定………………………8 3．夹具的设计 3.1夹具的概述…………………………………………11 3.2夹具装置的组成及设计要求………………………12 3.3夹具设计与操作基本说明…………………14 3.4夹具的设计………………………………………16 4.结论 参考文献………………………………………………….19