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凸轮轴加工及其仿真论文.doc

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凸轮轴加工及其仿真论文.doc

西安文理学院机械电子工程系本科毕业设计(论文)题目凸轮轴加工及其仿真专业班级机电08级二班学号08102080223学生姓名李伟指导教师戴君/田浩设计所在单位西安文理学院2012年5月西安文理学院毕业设计(论文)凸轮轴加工及其仿真摘要典型零件凸轮轴工件上圆形偏心部分的加工比较复杂。对于加工车间来说,优化这个加工工序可以提高企业的生产效率。凸轮轴加工工序的优化,取决于夹具的优化及工序安排的合理性。凸轮轴工件在机械加工中比较常见,常见的车削加工方法有三爪车削法、四爪车削法、花盘车削法等。像这些方法多用于普通车床上,偏心部分的偏心距采用百分表找正。缺点是加工复杂、效率低、互换性和精度难保证。本文采用凸轮轴偏心部位车削加工的另一种方法专用夹具车削法。专用夹具车削法,可用于数控车机床。文中涉及到了凸轮轴的加工工序、专用夹具的设计、数控加工编程等内容。关键字数控车床凸轮轴偏心套筒.西安文理学院本科毕业设计(论文)TheCamshaftProcessingandSimulationAbstractTypicalpartsofworkpiececirculareccentricCAMshaftpartsprocessingismorecomplex.Forprocessingworkshop,Optimizethemachiningprocessescanincreasetheproductionefficiency.Thecamshaftprocesses,dependingontheoptimizationofprocessoptimizationandfixturearrangementofrationality.Inmachiningcamshaftworkpieceincommon,Commonmachiningmethodshavethreeclawsturning,fourturningmachiningmethod,facile,etc.Thesemethodsuseonmuchlikelytheconventionallathe,theeccentricpartseccentricityusesthedialgaugetoadjust.TheshortcomingisProcesses,theefficiencytobelowcomplex,theinterchangeabilityandtheprecisiondifficulttoguarantee.Thesemethodsuseonmuchlikelytheconventionallathe,theeccentricpartseccentricityusesthedialgaugetoadjust.TheshortcomingisProcesses,theefficiencytobelowcomplex,theinterchangeabilityandtheprecisiondifficulttoguarantee1617.KeywordsNCLatheCamShaftEccentricSleeve目录1目录第一章绪论............................................................................................................................11.1数控加工的发展趋势......................................................................................................11.2数控加工技术常用的软件..............................................................................................21.3此课题的意义.................................................................................................................3第二章凸轮轴零件分析........................................................................................................42.1凸轮轴的结构介绍..........................................................................................................42.2凸轮轴加工要求和预计加工难度..................................................................................52.2.1加工要求...............................................................................................................52.2.2偏心圆的加工........................................................................................................52.2.3深孔加工................................................................................................................62.2.4轴的要求................................................................................................................62.3本章小结.........................................................................................................................6第三章夹具设计....................................................................................................................73.1夹具的工作原理..............................................................................................................73.2数控车床夹具设计..........................................................................................................73.3专用夹具偏心套设计..............................................................................................83.3.1专用夹具分析........................................................................................................93.3.2专用夹具设计........................................................................................................93.3.3专用夹具车削法的优点......................................................................................103.4一般套筒设计...............................................................................................................103.5本章小结........................................................................................................................11第四章机械加工工艺规程的制定.........................................................................................124.1加工工艺路线的分析...................................................................................................124.2凸轮加工工艺分析........................................................................................................124.3加工阶段的划分与工序顺序的安排............................................................................134.4加工工艺路线的拟定....................................................................................................134.4.1备料......................................................................................................................134.4.2铣端面、钻中心孔.............................................................................................144.4.3粗精加工外圆......................................................................................................144.4.4加工轴颈..............................................................................................................154.4.5粗精加工沟槽......................................................................................................154.4.6六方和键槽..........................................................................................................164.4.7偏心轮和螺纹孔加工..........................................................................................194.5本章小结........................................................................................................................20第五章......................................................................................................................................215.1键槽的仿真...................................................................................................................215.1.1Pro/Engineer软件............................................................................................215.1.2Pro/Engineer仿真............................................................................................21

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