西安文理學(xué)院機(jī)械電子工程系本科畢業(yè)設(shè)計(jì)（論文）題目數(shù)控車床主軸參數(shù)化建模及頻域分析專業(yè)班級(jí)08機(jī)械2班學(xué)號(hào)08102080209學(xué)生姓名陳建偉指導(dǎo)教師劉凌設(shè)計(jì)所在單位西安文理學(xué)院數(shù)控車床主軸參數(shù)化建模及頻域分析摘要：本畢業(yè)設(shè)計(jì)是對(duì)CKA6140數(shù)控車床主軸進(jìn)行參數(shù)化建模及頻域分析，將現(xiàn)代化的設(shè)計(jì)方法應(yīng)用于機(jī)床的設(shè)計(jì)，以數(shù)控系統(tǒng)設(shè)計(jì)方案的擬定為主線，通過對(duì)數(shù)控車床主軸伺服系統(tǒng)機(jī)械部分進(jìn)行參數(shù)化設(shè)計(jì)，理論強(qiáng)度基礎(chǔ)計(jì)算及其關(guān)鍵零件的校核，對(duì)車床進(jìn)給伺服系統(tǒng)進(jìn)行數(shù)學(xué)建模，然后使用ANSYS軟件進(jìn)行頻域仿真，簡要論述了頻域方法和動(dòng)力學(xué)分析的基本求解過程，建立機(jī)床主軸頻域模型，合理的確定了載荷、軸承支承剛度和約束條件，選定了單元類型。采用Lanczos法對(duì)其進(jìn)行自由模的具體研究內(nèi)容，總結(jié)了機(jī)床、動(dòng)態(tài)設(shè)計(jì)方法研究和機(jī)床主軸動(dòng)靜態(tài)研究的發(fā)展?fàn)顩r和發(fā)展趨勢，在總結(jié)前人研究成果的基礎(chǔ)上，結(jié)合當(dāng)前的技術(shù)發(fā)展趨勢，采用頻域方法來進(jìn)行研究，簡要論述了模態(tài)分析，得到主軸的固有頻率和振型，找出工作時(shí)容易發(fā)生共振的頻率域，為進(jìn)一步提高精度和轉(zhuǎn)速提供理論依據(jù)。通過畢業(yè)設(shè)計(jì)進(jìn)行了機(jī)電結(jié)合的全方面訓(xùn)練，從而培養(yǎng)設(shè)計(jì)計(jì)算的能力以及分析和處理生產(chǎn)過程中所遇到的問題的綜合能力。關(guān)鍵詞：頻域分析；模態(tài)分析；機(jī)床主軸；振動(dòng)FrequencyDomainAnalysisandParametricModelingofCNCLatheSpindleAbstract:ThisgraduationprojectistheCKA6140lathespindlemachineparametricmodelingandfrequencydomainanalysis,themainlinetotheformulationofthenumericalcontrolsystemdesign,Parametricdesign,CNClathespindlemachinefeedthemechanicalpartoftheservosystemandthecheckingofthetheoreticalstrengthcalculatedonthebasisofavailability,latheintothemathematicalmodelingoftheservosystem,andthenusetheANSYSsoftwareforfrequencydomainsimulation.Inthepaper,thedevelopmenttrendsofmachinetoolanddynamicdesignaresummarized.AndtheFEAmethodsaretakentouse.Thebasicresolvingprocessesaboutthemodalparametersidentifiertheory.Thebasicresolvingprocessesaboutstaticanalysisandkineticanalysis.Thesolidmodelofspindleisestablished.Duringthebuildingofthemodel,theloadonthespindle,thesupportingstiffnessofbearing,theboundaryandelementsareanalyzedcorrectly.ThemodalfrequencyandmodalshapecharacteristicsareobtainedbyFEMmodalanalysiswiththeLanczosmethod.Andthefrequencyregionoftheresonanceinworkisobtained.Graduatedesigntraininginallaspectsofmechanicalandelectricalintegration,inordertocultivatetheabilitytodesigncalculationsandtheproblemsencounteredintheproductionprocessoftheanalysisandprocessingcapabilities.Keywords:FiniteElementMethod；ModalAnalysis；Spindle；vibration目錄1目錄1緒論.11.1課題研究的背景及意義.11.2數(shù)控機(jī)床主軸國內(nèi)外研究現(xiàn)狀.11.3本課題的研究內(nèi)容.22總體設(shè)計(jì)方案.42.1設(shè)計(jì)要求.42.2設(shè)計(jì)參數(shù).52.3總體設(shè)計(jì)方案圖.53數(shù)控系統(tǒng)選擇.63.1簡介西門子802S數(shù)控系統(tǒng).63.2802S數(shù)控系統(tǒng)的組成.63.3數(shù)控機(jī)床伺服系統(tǒng)的選擇.74主軸計(jì)算及校核.84.1主軸設(shè)計(jì).84.1.1電動(dòng)機(jī)的選擇.84.1.2帶傳動(dòng)設(shè)計(jì).84.2主軸的校核.104.2.1傳動(dòng)組齒輪模數(shù)的確定和校核.104.2.2齒輪強(qiáng)度校核.114.2.3主軸撓度的校核.124.2.4主軸彎曲變形的校核.134.2.5主軸扭轉(zhuǎn)變形校核.134.3主軸最佳跨距的確定.144.3.1選擇軸頸直徑,軸承型號(hào)和最佳跨距.144.3.2求軸承剛度.144.4主軸支承處軸承的選擇.154.5主軸圖.165參數(shù)化建模.175.1理論基礎(chǔ).175.1.1主軸的動(dòng)力學(xué)模型.175.2建立目標(biāo)函數(shù).185.3約束條件.195.3.1剛度約束.195.3.2強(qiáng)度約束.195.3.3轉(zhuǎn)角的限制.205.3.4扭轉(zhuǎn)變形的限制.205.3.5切削力的限制.206數(shù)控車床主軸的頻域分析.216.1頻域簡介及ANSYS軟件應(yīng)用.216.1.1頻域概述.216.1.2ANSYS軟件應(yīng)用.22目錄26.2機(jī)