带肩轴衬的加工工艺及铣Φ32端面夹具设计 摘要 夹具是零件加工的夹紧装置，是加工零件的一种必不可少的装置。夹具利用率高，经济性好，对功能组件的使用和数量少。随着零件的尺寸变化，越来越多的夹具被淘汰了，因此，设计一套专用夹具是十分有必要的。在设计专用夹具时要考虑工件的定位方案，工件的夹紧方案和设计夹紧机构，夹具的其他组成部分，夹具的结构形式等。 本次设计的题目是带肩轴衬的加工工艺及铣Φ32端面夹具设计，根据老师给的图纸要求进行工艺设计和夹具设计，在掌握零件作用的基础上，对零件的工艺进行分析。针对设计给定的题目，设计里面主要对机床夹具进行设计。本夹具体是以保证加工精度，生产效率和便于工人操作为宗旨展开的设计。 设计之初我查阅相关数据及国内外关于机床夹具的文献，在看懂零件图的同时对零件的结构和工艺进行分析，明确粗基准和精基准的选择，确定零件的加工余量与毛坯的尺寸、从而确定零件的加工工艺过程、计算各工序的切削用量及工时。最终完成了本次设计所需的夹具。 关键词：带肩轴衬；加工工艺；铣Φ32端面；夹具设计 Abstract Jig is the clampi
ng device for parts processi
ng,which is a
n esse
ntial device for processi
ng parts. The fixture has the adva
ntages of high utilizatio
n rate, good eco
nomy, a
nd less use a
nd qua
ntity of fu
nctio
nal compo
ne
nts. With the cha
nge of the size of parts, more a
nd more fixtures are elimi
nated. Therefore, it is
necessary to desig
n a set of special fixtures. Whe
n desig
ni
ng the special fixture,we should co
nsider the positio
ni
ng scheme of theworkpiece, the clampi
ng scheme of theworkpiece a
nd the desig
n of the clampi
ng mecha
nism, other parts of the fixture, the structure of the fixture a
nd so o
n. The subject of this desig
n is the processi
ng tech
nologywith shoulder shaft li
ni
ng a
nd the desig
n of milli
ng_32 e
nd-face fixture. Accordi
ng to the drawi
ngs give
n by the teacher, the process desig
n a
nd fixture desig
n are carried out. O
n the basis of masteri
ng the role of the parts, the process of the parts is a
nalyzed. For the desig
n of a give
n topic, the desig
n mai
nly focuses o
n the desig
n of machi
ne tool jig. The clip is specifically desig
ned to e
nsure machi
ni
ng accuracy, productio
n efficie
ncy a
nd ease ofworker operatio
n. At the begi
n
ni
ng of the desig
n, I co
nsulted the releva
nt data a
nd the domestic a
nd foreig
n literature about the machi
ne tool fixture, a
nalyzed the structure a
nd process of the partwhile readi
ng the part drawi
ng, made clear the choice of the rough datum a
nd the precisio
n datum, determi
ned the machi
ni
ng allowa
nce of the part a
nd the size of the bla
nk, thus determi
ned the processi
ng process of the part a
nd calculated the cutti
ng process of eachworki
ng procedure. Dosage a
ndworki
ng hours. Fi
nally, the fixture
needed for the desig
n is completed. Keywords: shoulder beari
ng bushi
ng; processi
ng tech
nology; milli
ng 32 e
nds; fixture desig
n 目录 摘要I Abstract II 第1章绪论- 1- 1.1机床夹具的概述- 1- 1.2机床夹具的分类- 1- 1.3机床夹具的发展方向- 1- 1.4机床夹具在机械加工中的作用- 2- 1.5夹具设计的特点和基本要求- 2- 1.5.1夹具设计的特点- 2- 1.5.2设计的基本要求- 3- 第2章工艺规程制定- 4- 2.1机械加工工艺规程制订- 4- 2.2机械加工工艺规程的组成- 4- 2.3制订机械加工工艺规程的原始资料- 4- 第3章零件的分析- 5- 3.1零件的作用- 5- 3.2零件的工艺分析- 5- 第4章工艺规程设计- 6- 4.1毛坯的制造形式- 6- 4.2基准面的选择- 6- 4.2.1粗基准的选择原则- 6- 4.2.2精基准的选择原则- 7- 4.3制定工艺路线- 7- 4.4确定各工序的加工余量、计算工序尺寸及公差- 8- 4.5选择加工设备与工艺设备- 9- 4.6基本工时的确立- 10- 第5章铣床夹具设计- 19- 5.1定位基准的选择- 19- 5.2定位元件的设计- 19- 5.3定位误差分析- 20- 5.4切削力的计算与夹紧力分析- 21- 5.5导向元件的设计- 21- 5.6夹具设计及操作简要说明- 23- 结论- 26- 致谢- 27- 参考文献- 28-