机械5

飞机助力器液压操纵杆加工工艺及夹具设计 摘要 现代化的机械行业结构变化很大，对于加工单位来说设计工艺水平对他们的影响是非常关键的。夹具行业的发展是非常快的，里面设计的是飞机助力器液压操纵杆的加工工艺及钻削Ф1.5圆柱孔。一开始阐述了零件，之后将毛坯的加工形式确定下来，将工艺路线定下来，还有将机械加工余量，切削余量等等都定下来。用绘图软件将零部件的三维图纸，零件图纸，还有毛坯图纸都画出来。设计专用夹具的时候，将定位的办法，还有夹紧办法都定下来，确定下来定位零部件，夹紧零部件，确定下导向庄子等等。将切削力和夹紧力的数值算出来。里面的夹紧用的是液压实现的，这种夹紧方式不复杂，所以整个装置都是非常便利的，夹紧要求完全可以实现。 在将夹具的装配图立体图纸画出来的时候用的是PROE程序，将装配图还有非标零件图纸画出来的时候用的是AutoCAD程序。 关键词：飞机助力器、液压操纵杆、钻削、Ф1.5 ABSTRACT The moder
n mecha
nical processi
ng i
ndustry has u
ndergo
ne profou
nd structural cha
nges. The desig
n a
nd improveme
nt of process tooli
ng has become a
necessary co
nditio
n for the survival a
nd developme
nt of related compa
nies. As a traditio
nal a
nd dy
namic i
ndustry, fixture i
ndustry has made rapid developme
nt over the past decade. I
n the
new eco
nomic era, this i
ndustry has show
n
new tre
nds. The desig
n of the aircraft booster hydraulic joystick processi
ng tech
nology a
nd drilli
ngФ1.5 cyli
ndrical hole for research. First of all, a
nalysis of the parts, a
nd the
n select the form of rough ma
nufacturi
ng, formulatio
n process route, to determi
ne the machi
ni
ng allowa
nce, cutti
ng a
nd so o
n. Complete 3D solid modeli
ng, parts drawi
ng a
nd bla
nk drawi
ng. For special fixture desig
n, determi
ne the positio
ni
ng scheme a
nd the clampi
ng scheme, select the positio
ni
ng eleme
nts, clampi
ng eleme
nts, guides a
nd so o
n. Calculate the cutti
ng force a
nd clampi
ng force. The clampi
ng method usi
ng hydraulic clampi
ng, clampi
ng theway it is simple, the desig
n of the orga
nizatio
n more co
nve
nie
nt to meet the clampi
ng requireme
nts. Usi
ng the PROE drawi
ng software to complete the three-dime
nsio
nal solid modeli
ng of the fixture assembly drawi
ng, the use of AutoCAD drawi
ng software to complete the assembly drawi
ng a
nd
no
n-sta
ndard parts drawi
ng. Keywords: Aircraft booster, Hydraulic joystick, Drilli
ng,Ф1.5 目录 摘要I ABSTRACT I 1零件的工艺性分析1 1.1零件的组成表面、技术要求及形位公差分析1 1.1.1零件的组成表面分析1 1.1.2零件的技术要求分析1 1.1.3零件的形位公差分析1 1.2零件的作用1 1.3零件的工艺性审查2 1.4确定零件的生产类型3 2拟定零件工艺路线及确定毛坯4 2.1选择定位基准4 2.1.1粗基准的选择4 2.1.2精基准的选择4 2.2工艺过程设计中应考虑的主要问题4 2.2.1加工方法选择的原则4 2.2.2加工阶段的划分5 2.2.3工序的合理组合6 2.3制定工艺路线6 2.4零件毛坯的确定7 2.5机床、夹具、刀具及量具的确定8 2.6零件加工余量的确定9 2.7切削用量及时间定额的计算11 3钻Ф1.5孔专用夹具设计26 3.1机床夹具的介绍26 3.2问题的提出26 3.3选择定位方案和定位元件26 3.4选择夹紧方案和夹紧元件28 3.5夹具体的设计28 3.6导向装置选择29 3.7切削力计算30 3.8夹紧力计算30 3.9定位误差分析31 结论32 致谢33 参考文献34