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1、福建農(nóng)林大學(xué)碩士學(xué)位論文機(jī)床主軸箱優(yōu)化與智能設(shè)計(jì)的研究姓名:賈俊榮申請(qǐng)學(xué)位級(jí)別:碩士專(zhuān)業(yè):農(nóng)業(yè)機(jī)械化工程指導(dǎo)教師:林高飛20050401榀建農(nóng)林人學(xué)壩I岸位論義摘要主軸箱是機(jī)床的重要組成部分.岡此有芙士軸箱的設(shè)計(jì)一直還是許多專(zhuān)家致力研究的重要課題。當(dāng)前對(duì)機(jī)床設(shè)計(jì)中穩(wěn)定性與精確度的要求日漸提高,對(duì)零部件的限制條件也越來(lái)越多.越來(lái)越復(fù)雜,傳統(tǒng)的經(jīng)驗(yàn)公式已經(jīng)無(wú)法滿(mǎn)足設(shè)計(jì)要求。不僅從土軸箱本身的特點(diǎn),還是設(shè)計(jì)手段與方法的整個(gè)趨勢(shì)米看.將先進(jìn)的設(shè)計(jì)方法引入土軸箱的設(shè)計(jì)是極其必要的。本文介紹了主軸箱優(yōu)化與智能設(shè)計(jì)系統(tǒng)。針對(duì)機(jī)床主軸箱中的三支承土軸結(jié)構(gòu),運(yùn)J
2、=
3、=I優(yōu)化設(shè)計(jì)理論,以機(jī)床主軸端部撓度最小和土軸重帶最小為目標(biāo)曬數(shù)建立數(shù)學(xué)模刪,并選取不同方法求解得到主軸主要結(jié)構(gòu)參數(shù)的最佳值。從而達(dá)到了提高機(jī)床的加I:精度和加,【表面質(zhì)最的目的。用戶(hù)可以通過(guò)友好參數(shù)輸入設(shè)計(jì)界面進(jìn)行參數(shù)的毆計(jì)、計(jì)算、優(yōu)化:同時(shí),針對(duì)主軸箱中主軸、齒輪、軸承等部件的失效形式實(shí)現(xiàn)各部件的校核。建立主軸箱智能設(shè)計(jì)系統(tǒng)的整體框架和知識(shí)庫(kù)的知識(shí)表示模型,編稃實(shí)現(xiàn)了止向推理和啟發(fā)式推理,開(kāi)發(fā)了主軸箱專(zhuān)用的二維繪I到軟1;rI:。本研究對(duì)提高機(jī)床的設(shè)計(jì)水平,增強(qiáng)機(jī)床企業(yè)的競(jìng)爭(zhēng)力具有一定的意義。關(guān)鍵詞:主軸箱、優(yōu)化設(shè)計(jì)、智能設(shè)計(jì)、知識(shí)表示
4、、推理機(jī)榻建農(nóng)林大半壩{’學(xué)位論文AbstractThespindleboxistheimporlantcomponentofthemachine-tool,SOallthetimealotofexpertsdevotetotheimportantsubjectstudiedconstantlyinthedesignaboutthespindlebox.nlerequisitionforstabilityandaccuracyinmachine-tooldesignimprovesdaybydayatpresent,limitingcondit
5、ionstothesparepartsismoreandmoretOO,moreandmorecomplicated,thetraditionalexperienceformulahasbeenalreadyunabletomeetthedesigningrequirement.Notmerelyfromthespindlebox’Scharacteristic,itthewholetrendofdesigningthemeansandmethodthatisseen,itisessentialtointroduceadvanceddesign
6、methodtothedesignofspindlebox.Thispaperintroducesthesyste日aofmachine—toolspindleboxoptimizationandintelligentdesign.Basedonthestructureofthespindle,useoptimizationdesigntheory;withmachine—toolspindletipdeflectionminimumandspindleweightminimumasthefunctionofgoaltosetupmathema
7、ticsmodel.Choosedifferentmethodstosolvingandreceivetheoptimumvalueofthemainstructureparameterofthespindle,thusachievedthepurposeofimprovingthemachiningaccuracyandtheprocesssurfacequality.UsersCaninputtheparametersanddesign,calculation,optimizethroughthefriendlyparameterinter
8、faces;Meanwhile,verifyeachpartinthespindleboxbasedontheinvalidformofsuchpartsflSspindle,gears,bearinginthespindlebox.Itsetupthewholeframeworkofthesystem,includingfourparts:optimizeandcalculatesubsystem,dataservicesubsystem,knowledgeprocessingsubsystemandgraphprocessingsubsys
9、tem.Ithassetupknowledgeexpressesmodelsoftheknowledgebaseandachievedforwardr