机械5

摘要 本文对气门摇杆轴支座的作用和工艺性进行了分析，详细介绍了气门摇杆轴支座加工工艺过程的制定:1、气门摇杆轴支座定位基准的选择，2、气门摇杆轴支座制定加工工艺路线，3、气门摇杆轴支座选择加工设备及气门摇杆轴支座工艺装备，4、确定气门摇杆轴支座切削用量及气门摇杆轴支座加工基本工时。然后介绍气门摇杆轴支座加工夹具的设计及气门摇杆轴支座计算，包括气门摇杆轴支座本工序的加工方式分析，再对确定夹具加工类型，租后确定加工方案和选择气门摇杆轴支座定位元件确定夹紧方案，确定加工对刀装置最终气门摇杆轴支座设计专用夹具。 关键词：气门摇杆轴支座、加工工艺、专用夹具 Abstract This paper a
nalyses the fu
nctio
n a
nd tech
nicality of the rocker arm, a
nd i
ntroduces i
n detail the formulatio
n of the process of the rocker arm processi
ng: 1. the selectio
n of the positio
ni
ng datum of the rocker arm; 2. the formulatio
n of the process route of the rocker arm; 3. the selectio
n of the processi
ng equipme
nt a
nd the process equipme
nt of the rocker arm; 4. the determi
natio
n of the cutti
ng parameters of the rocker arm a
nd the basicworki
ng hours of the rocker arm processi
ng. The
n it i
ntroduces the desig
n a
nd calculatio
n of the rocker arm processi
ng fixture, i
ncludi
ng the a
nalysis of the processi
ng mode of the rocker arm i
n this process. The
n it determi
nes the processi
ng type of the fixture, determi
nes the processi
ng scheme after re
nti
ng a
nd determi
nes the clampi
ng scheme by selecti
ng the rocker arm positio
ni
ng eleme
nt, a
nd determi
nes the special fixture for the fi
nal rocker arm desig
n of the tool setti
ng device. Keywords: rocker arm, processi
ng tech
nology, special fixture 目录 摘要II 第一章机械加工工艺规程设计1 1.1气门摇杆轴支座的分析1 1.1.1气门摇杆轴支座的作用1 1.1.2气门摇杆轴支座的性能分析1 1.1.3气门摇杆轴支座的材料性能1 1.2气门摇杆轴支座零件的工艺性分析2 1.3气门摇杆轴支座加工方法的选择2 1.4气门摇杆轴支座工序路线3 1.5确定加工余量及毛坯尺寸4 第二章确定切削用量和加工时间6 第三章气门摇杆轴支座专用夹具的设计14 3.1气门摇杆轴支座夹具结构设计14 3．1．1确定定位方案，选择定位元件14 3．1.2夹具设计的有关计算14 3.2计算定位误差——目的是分析定位方案的可行性15 3.3夹具结构设计及操作简要说明15 3.4夹具结构设计及操作简要说明15 设计总结16 参考文献17