变速器输出轴制造工艺及其夹具设计

**理工大学变速器2轴制造工艺及自动夹具设计I目录摘要...............................................................................................................IVAbstract..........................................................................................................II1.引言..............................................................................................................11.1课题设计的目的和意义........................................................................11.2变速器2轴的现状和发展趋势...........................................................22.技术背景......................................................................................................42.1轴类零件的特点及技术要求................................................................42.2轴类零件的毛坯和材料........................................................................52.3零件的相关加工机床.............................................................................62.4零件在产样品、厂商............................................................................72.5相关专利解释说明................................................................................83.变速器2轴的机械加工工艺设计.............................................................93.1零件的作用............................................................................................93.2零件的工艺分析....................................................................................93.3确定零件的生产类型..........................................................................103.4选择毛坯种类，绘制毛坯图..............................................................113.4.1选择毛坯种类................................................................................113.4.2绘制毛坯图.................................................................................123.5选择加工方法，拟定工艺路线..........................................................123.5.1定位基准的选择........................................................................123.5.2零件表面加工方法的选择........................................................13**理工大学变速器2轴制造工艺及自动夹具设计I3.5.3加工阶段的划分........................................................................133.5.4工序的集中与分散....................................................................143.5.5工序顺序的安排........................................................................143.5.6确定工艺路线.............................................................................143.5.7加工设备及工艺装备选择......................................................153.5.8工序间余量和工序尺寸的确定..................................................163.5.9切削用量及基本时间定额的确定............................................164.变速器2轴夹具系统设计........................................................................204.1手动夹具设计.......................................................................................204.1.1明确设计要求、收集设计资料................................................204.1.2工件在夹具中的定位与夹紧.......................................................204.1.3定位基准的分析............................................................................214.1.4确定工件夹紧方案，设计夹紧机构........................................234.1.5确定夹具总体结构和尺寸........................................................244.1.6夹具使用说明.............................................................................264.2自动夹具的设计...................................................................................264.2.3夹具使用说明.............................................................................304.3机电控制系统...................................................................................315.设计总结..................................................................................................34致谢.........................................................................................................36参考文献.......................................................................................................37**理工大学变速器2轴制造工艺及自动夹具设计I**理工大学变速器2轴制造工艺及自动夹具设计I摘要现代机械加工行业发生着深刻的结构性变化，工艺工装的设计与改良已成为相关企业生存和发展的必要条件。动力装置行业作为一个传统而富有活力的行业，近十几年取得了突飞猛进的发展。在新经济时代，这一行业呈现了新的发展趋势，由此对其动力装置的质量、性能产生了新的变化。输出轴作为动力装置的主要零件，工艺工装的设计与改良直接影响着其质量与性能。变速器2轴其实就是变速器的输出轴，输出轴零件的主要作用是支撑零件、实现回转运动并传递转矩和动力。可见它的作用是相当的大，其质量直接影响着变速器的性能，所以输出轴零件的机械综合性能要求较高，因此设计要求也比较高。此次设计以典型变速器输出轴为题材进行零件的机械加工工艺设计和自动夹具设计。关键词：输出轴；工艺；夹具；设计**理工大学变速器2轴制造工艺及自动夹具设计ⅡAbstractThemodernmachine-finishingprofessionishavingtheprofoundconstitutivechange,thecraftworkclothesdesignandtheImprovementhasbecomethecorrelationenterprisesurvivalandthedevelopmentessentialcondition.Thepowerunitprofessiontakesatraditionbuttherichvigorprofession,intherecentseveralyearshasobtainedthedevelopmentwhichprogressesbyleapsandbounds.Intheneweconomicaltime,thisprofessionhaspresentedtherecentdevelopmenttendency,fromthistoitspowerunitquality;theperformancehashadthenewchange.Theoutputshafttookthepowerunitthemajorparts,thecraftworkclothesdesignandtheimprovementdirectlyisaffectingitsqualityandtheperformance.Thetransmissionofthe2axisisanoutputshaftofthetransmission,themainfunctionofoutputshaftpartsofthesupportingparts,rotarymotionandtransfertorqueandpower.It'sroleisverybig,itsqualitydirectlyaffectstheperformanceofthetransmission,s