机械5

离合摇臂的工艺规程及铣尺寸33右端面（即铣Φ38上端面）夹具设计 摘要 本文选择了离合摇臂作为研究对象，该零件是机器部位的重要件，其作用是分离杠杆，起到分离离合器压盘的作用。 本文主要研究内容是离合摇臂的工艺规程及铣尺寸33右端面夹具设计。制定了加工离合摇臂的机械加工工艺路线，详细计算了加工余量、切削用量、尺寸公差，确定各工序尺寸、工序加工余量、加工工时、机械加工三要素等，选择其加工设备。通过本设计掌握零件的加工过程分析、工艺卡片的编制和步骤。学会应用手册、标准、规范等资料。认识到工艺在机械制造中的重要性。了解刀具的选用规则，产品质量、精度、寿命等属性和节约材料，降低成本，最重要的是提高生产效率。 设计加工铣削Ф38右端面专用铣床夹具，设计内容有：定位方案和夹紧方案的确定，定位元件和夹紧元件的选择，夹具体的设计，铣削力的计算等等。 关键词：离合摇臂、工艺规程、33右端面、铣床夹具 Abstract This paper chooses the clutch rocker arm as the research object. The part is a
n importa
nt part of the machi
ne. Its fu
nctio
n is to separate the lever a
nd to separate the clutch pressure plate. The mai
n co
nte
nts of this paper are the tech
nological regulatio
ns of the clutch rocker a
nd the desig
n of the 33 right e
nd fixture of milli
ng size. The machi
ni
ng process route of clutch rocker arm isworked out. The machi
ni
ng allowa
nce, cutti
ng parameters a
nd dime
nsio
nal tolera
nce are calculated i
n detail. Theworki
ng procedure dime
nsio
ns,worki
ng procedure machi
ni
ng allowa
nce,worki
ng hours a
nd machi
ni
ng eleme
nts are determi
ned, a
nd the processi
ng equipme
nt is selected. Through this desig
n,we ca
n grasp the process a
nalysis of parts, the compilatio
n a
nd steps of process cards. Lear
n applicatio
n ma
nuals, sta
ndards, specificatio
ns a
nd other i
nformatio
n. Recog
nize the importa
nce of tech
nology i
n machi
ne ma
nufacturi
ng. K
nowi
ng the rules of tool selectio
n, product quality, precisio
n, life a
nd other attributes a
nd savi
ng materials, reduci
ng costs, the most importa
nt thi
ng is to improve productio
n efficie
ncy. The clamp for milli
ng the right e
nd face of_38 is desig
ned a
nd ma
nufactured. The desig
n co
nte
nts i
nclude the determi
natio
n of positio
ni
ng scheme a
nd clampi
ng scheme, the selectio
n of positio
ni
ng eleme
nts a
nd clampi
ng eleme
nts, the desig
n of clampi
ng body, the calculatio
n of milli
ng force a
nd so o
n. Keywords: clutch rocker arm, process regulatio
n, 33 right e
nd face, milli
ng fixture 目录 摘要I Abstract II 第1章绪论1 1.1机加工工艺规程及机床夹具的概述1 1.2机床夹具的分类2 1.3机床夹具的发展方向2 第2章离合摇臂机械加工工艺规程设计4 2.1零件的作用、设计基准及技术要求4 2.1.1零件的作用4 2.1.2零件的设计基准5 2.1.3零件的组成表面5 2.2零件加工表面的分析5 2.3零件的机械加工工艺性、材质及热处理要求5 2.3.1零件的机械加工工艺性5 2.3.2零件的材质5 2.4基准的选择及加工方案的选择与确定6 2.4.1基准的选择6 2.4.2加工方案的选择比较与确定7 2.5毛坯尺寸及加工余量的确定8 2.5.1毛坯尺寸的确定8 2.5.2加工余量的确定9 2.6机械加工机床、刀具及量具的选择10 2.7确定切削用量及基本工时11 第3章铣尺寸33右端面专用夹具的设计21 3.1定位方案及定位元件的确定与选择21 3.2夹紧方案及装置的确定与选择22 3.3夹具体的确定22 3.4导向装置的确定24 3.5铣削力的计算24 3.6夹紧力的计算25 3.7定位误差的计算25 结论26 致谢27 参考文献28