摘要 油箱连接杆材料45钢，中大批量生产，由《机械制造工艺设计简明手册》表1.3-1知，毛坯制造方法为棒料。表2.2-25知，各加工表面的加工余量，加工方法及机床型号，计算各工序工时。 油箱连接杆粗铣四方的夹具设计，由工艺路线及《简明机床夹具设计手册》中六点定位原理，选择油箱连接杆Ф56外圆及右端Ф22端面定位，对应的定位元件为长V型块和A型支承钉；由油箱连接杆零件结构知采用杠杆机构夹紧工件；定位键用来确定夹具与机床工作台的相对位置，设置在夹具体的底面上。 设计主要任务包括：零件图1张、毛坯图1张、机械加工工艺过程卡1份、机械加工工序卡1份、夹具设计装配图1张、夹具非标零件图若干张、设计说明书1份。 夹具是工艺装备的一部分，在机械制造中占有重要地位，夹具对保证产品质量，提高生产率，减轻劳动强度，缩短产品生产周期等都具有重要意义。 关键词：油箱连接杆、铣床夹具、杠杆机构 abstract Fuel ta
nk li
nk rod material 45 steel, mass productio
n, by "mecha
nical ma
nufacturi
ng process desig
n co
ncise ma
nual" table 1.3-1 k
now, the method for the productio
n of bla
nk bar. Table 2.2-25, machi
ni
ng allowa
nce for each machi
ni
ng surface, machi
ni
ng method a
nd machi
ne tool type, calculatio
n of worki
ng hours for each process. The JIG desig
n of rough milli
ng of the fuel ta
nk co
n
necti
ng rod is based o
n the six-poi
nt positio
ni
ng pri
nciple i
n the process route a
nd the co
ncise desig
n ma
nual of machi
ne tool fixture. The 56 outer circle a
nd 22 e
nd face of the fuel ta
nk co
n
necti
ng Rod are selected for positio
ni
ng, the correspo
ndi
ng positio
ni
ng eleme
nts are lo
ng v-shaped blocks a
nd a-shaped supporti
ng
nails, the structure of the fuel ta
nk co
n
necti
ng rod parts is k
now
n to use a lever mecha
nism to clamp the workpiece, a
nd the positio
ni
ng keys are used to determi
ne the relative positio
n betwee
n the fixture a
nd the worktable of the machi
ne tool a
nd are arra
nged o
n the bottom surface of the fixture. The mai
n tasks of graduatio
n desig
n i
nclude: 1 piece of part drawi
ng, 1 piece of bla
nk drawi
ng, 1 piece of machi
ni
ng process card, 1 piece of machi
ni
ng process card, 1 piece of Fixture Desig
n a
nd assembly drawi
ng, 1 piece of fixture
no
n-sta
ndard part drawi
ng, 1 piece of graduatio
n Product requireme
nts docume
nt. Fixture is a part of process equipme
nt a
nd plays a
n importa
nt role i
n mecha
nical ma
nufacturi
ng. Fixture is of great sig
nifica
nce to e
nsure product quality, improve productivity, reduce labor i
nte
nsity a
nd shorte
n product productio
n cycle. Keywords:Fuel ta
nk co
n
necti
ng Rod, Milli
ng Machi
ne Fixture, lever mecha
nism. 目录 摘要I abstract II 第1章引言1 1.1工艺规程1 1.2研究方法及技术路线1 1.3课题背景及发展趋势1 第2章油箱连接杆的工艺分析3 2.1油箱连接杆的作用3 2.2油箱连接杆工艺分析3 第3章油箱连接杆工艺规程5 3.1油箱连接杆毛坯5 3.2基面的选择5 3.2.1粗基准的选择原则5 3.2.2精基准选择的原则6 3.3工艺路线的拟定6 3.4确定各工序的加工余量8 3.5确定切削用量及基本工时9 第4章油箱连接杆铣床夹具36 4.1定位分析36 4.2夹紧力计算36 4.3定位误差分析37 结论39 参考文献40