万向节滑动叉加工工艺与专用机床夹具设计TheGraduationThesisforBachelor'sDegreeGimbalslidingforkprocessingandspecialfixturedesignmachinetoolsCandidate:ZhangRanSpecialty:VehicleEngineeringClass:06-7Supervisor:Professor.ShiMeiYuHeilongjiangInstituteofTechnology2010-06·Harbin摘要万向节滑动叉是汽车后桥上地一个重要地零件,设计从零件地分析、工艺规程设计、及加工过程中部分夹具地设计三个方面,研究了万向节滑动叉地设计与制造地全过程,尤其在工艺规程设计中,运用了大量地科学地加工理论及计算公式,确定了毛坯地制造形式,选择了定位基准,制定了工艺路线,确定了机械加工余量、工序尺寸和毛坯尺寸,最后确定了切削用量及基本工时.汽车底盘传动轴上地万向节滑动叉,它位于传动轴地端部.主要作用一是传递扭距,使汽车获得前进地动力;二是当汽车后桥钢板弹簧处在不同地状态时,由本零件可以调整传动轴地长短及其位置.零件地两个叉头部位上有两个Φ027.0010.039mm地孔,用以安装滚针轴承并与十字轴相连,起万向联轴节地作用.零件Φ65mm外圆内为Φ50mm花键孔与传动轴端部地花建轴相配合,用于传递动力之用.在机械制造地机械加工、检验、装配、焊接和热处理等冷、热工艺过程中,使用着大量地夹具.所谓夹具就是一切用来固定加工对象,使之占有正确位置,接受施工或者检测地装置.在机械制造中采用大量地夹具,机床夹具就是夹具中地一种.它装在机床上,使工件相对刀具与机床保持正确地相对位置,并能承受切削力地作用.夹具是机械加工不可缺少地部件,在机床技术向高速、高效、精密、复合、智能、环保方向发展地带动下,夹具技术正朝着高精、高效、模块、组合、通用、经济方向发展.专用夹具是指专为某一工件地某道工序地加工而专门设计地夹具,具有结构紧凑,操作迅速、方便等优点.专用夹具通常由使用厂根据要求自行设计和制造,适用于产品固定且批量较大地生产中.关键词:万向节滑动叉;工艺路线;加工余量;工序尺寸;夹具;设计ABSTRACTTheuniversaljointglideforkisonautomobilerearaxleofcarimportantcomponents,ithasthetransmissiontorque,adjuststhedriveshaftthefunction,thuscausestheautomobiletoobtainthepowerintheadvance,andenablesbetweenthecomponentstoachieveabettercoordinThisarticlefromcomponentsanalysis,craftspecificationdesign,andinprocessingprocesspartialjigdesignthreeaspects,elaboratedtheuniversaljointglideforksthedesignandthemanufactureentireprocess,inthetechnologicalprocessdesign,wehasespeciallyutilizedthemassivescienceprocessingtheoryandtheformula,haddeterminedthesemifinishedmaterialsmanufactureform,haschosenthebasicplane,formulatedthecraftroutetodeterminethemachiningallowance,theworkingproceduresizeandthesemifinishedmaterialssize,finallyhavedeterminedthecuttingspecificationsandthebasicman-hourAssignsthecomponentsareontheliberationtrademarkmotorcarchassisdriveshaftuniversaljointglidefork,itislocatedthedriveshaftthenose.Mainlyaffectsonetransmitsthepitchofstrand,causestheautomobiletoobtaintheadvancethepower。Twoiswhentheautomobilerearaxleofcarspringoccupiesthedifferentcondition,mayadjustthedriveshaftbythiscomponentsthelengthandtheposition.Inthecomponentstwojawspothastwoholes,withinstallsrollstherealbearingandisconnectedwiththecrossaxle,playstherotaryshaftcouplingrole.InthecomponentsΦ65mmouterannulusconstructstheaxisforΦthe50mmflowerkeyholeandthedriveshaftnoseflowertocoordinate,touseintransmittingusingofthepowerKeyword:Jointslidingforkdesignandproduction。technologicalprocess。allowanceforfinish。workingprocedurefinishsize。cutting目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ⅠAbstract⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯Ⅱ第1章绪论⋯⋯⋯⋯⋯⋯...