机械5

摘要 本文对连杆的作用和工艺性进行了分析，详细介绍了连杆加工工艺过程的制定:1、连杆定位基准的选择，2、连杆制定加工工艺路线，3、连杆选择加工设备及连杆工艺装备，4、确定连杆切削用量及连杆加工基本工时。然后介绍连杆加工夹具的设计及连杆计算，包括连杆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连杆定位元件确定夹紧方案，确定加工对刀装置最终连杆设计专用夹具。 关键词：连杆、加工工艺、专用夹具 Abstract This paper a
nalyses the fu
nctio
n a
nd tech
nicality of the co
n
necti
ng rod, a
nd i
ntroduces i
n detail the formulatio
n of the co
n
necti
ng rod processi
ng process: 1. the selectio
n of the positio
ni
ng datum of the co
n
necti
ng rod; 2. the formulatio
n of the processi
ng route of the co
n
necti
ng rod; 3. the selectio
n of the processi
ng equipme
nt a
nd the co
n
necti
ng rod processi
ng equipme
nt for the co
n
necti
ng rod; 4. the determi
natio
n of the cutti
ng parameters of the co
n
necti
ng rod a
nd the basicworki
ng hours of the co
n
necti
ng rod processi
ng. The
n it i
ntroduces the desig
n a
nd calculatio
n of the co
n
necti
ng rod processi
ng fixture, i
ncludi
ng the a
nalysis of the processi
ng mode of the co
n
necti
ng rod i
n this process. The
n it determi
nes the processi
ng type of the fixture, determi
nes the processi
ng scheme after leasi
ng a
nd determi
nes the clampi
ng scheme by selecti
ng the co
n
necti
ng rod positio
ni
ng eleme
nts, a
nd determi
nes the special fixture for the fi
nal co
n
necti
ng rod desig
n of the tool setti
ng device. Keywords: lever, processi
ng tech
nology, special fixture 目录 第一章机械加工工艺规程设计3 1.1零件的分析3 1.1.1零件的作用3 2.1.2零件的工艺分析3 1.2连杆加工的主要工艺过程5 1.2.1确定毛坯的制造形式5 1.2.2基面的选择5 1.2.3确定工艺路线5 1.2.4机械加工余量、工序尺寸及毛坯尺寸的确定7 第二章计算切削用量和加工时间9 2.1工序3粗、精铣底面9 2.2工序4粗、精铣Φ30mm上台阶面10 2.3工序5粗、精铣Φ50mm上台阶面11 2.4工序6钻、扩、铰Φ32H7 12 2.5工序7钻、扩、铰孔2-Φ16H7 13 2.6工序9钻、攻M5孔14 第三章连杆钻Φ32H7孔专用夹具的设计17 3.1连杆夹具结构设计17 3.1.1确定定位方案，选择定位元件17 3.1.2夹具设计的有关计算17 3.2计算定位误差分析定位方案的可行性18 3.3夹具结构设计及操作简要说明18 3.3.1确定主夹紧机构： 18 3.3.2结构设计及操作说明18 3.4切削力及夹紧力分析计算18 总结21 参考文献22