深孔振動鉆削裝置的設(shè)計

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1、畢業(yè)設(shè)計說明書深孔振動鉆削裝置的設(shè)計學(xué)生姓名：學(xué)號：學(xué)院：機械工程與自動化學(xué)院專業(yè)：機械設(shè)計制造及其自動化指導(dǎo)教師：2011年6月深孔振動鉆削裝置的設(shè)計摘要：由于深孔加工是在封閉或半封閉的狀況下進行，因此不能直接觀察刀具的切削情況，切削熱不易傳散，而且排屑困難，工藝系統(tǒng)剛性差，切削效果不理想，特別是0.8mm以下，長徑比大于10,IT7以上的精密深孔的加工，是目前國內(nèi)外的技術(shù)難題。本課題設(shè)計時，在對振動鉆削和DF負(fù)壓抽屑機理進行深入研究的基礎(chǔ)上，設(shè)計深孔振動鉆削裝置，采用普通車床配用一種電磁式振動裝置，電磁式振動裝置克服了深孔加工斷屑排屑困難的問題，并且提高深孔的加工質(zhì)量及加工效率。關(guān)鍵

2、詞：深孔加工，振動切削，DF系統(tǒng)Deepholevibrationdrillingdevicedesign Abstract:becauseofthedeepholeprocessinginclosedorsemi-closedisconducted,andthereforecannotbedirectlyobservedthecuttingtool,cutting,andscatteredheatyiscrapsdischargedifficult,processsystemrigidityispoor,cuttingtheeffectnotideal,especially0.8mmb

3、elow,length-diameterratioismorethan10,IT7aboveprecisiondeepholeprocessing,isthetechnicalproblemsathomeandabroad. Thistopicdesign,forvibrationdrillingandthemechanismofsmokecrumbsDFnegativepressure,thoroughstudyonthebasisofthedeepholedesignvibrationdrillingdevice,USESordinarylathewithaassolenoidsty

4、levibratingdevice,assolenoidstylevibratingdeviceovercomesthedeepholeprocessingbrokenbitsscrapsdischargedifficultproblemsandimprovedeepholeprocessingqualityandmachiningefficiency. Keywords:deepholeprocessing,thevibrationcutting,DFsystem目錄1引言·························································

5、·····11．1本課題研究的目的和意義·········································11.2國內(nèi)外深孔振動鉆削發(fā)展簡況及深孔振動鉆削的進展·················21．2．1國內(nèi)外深孔振動鉆削發(fā)展簡況··································21．2．2深孔振動鉆削的進展·········································51．3低頻深孔振動鉆削存在的主要問題································71．4本課題的來源及主要研究內(nèi)容···············

6、······················71．5對深孔振動鉆削技術(shù)的展望······································102振動鉆削的斷屑機理的研究·········································122．1振動鉆削的完全幾何斷屑機理····································122．1．1振動切削為什么能斷屑及斷屑之充分條件·······················122．1．2切屑的形成·················································13

7、2．2力學(xué)斷屑機理··················································142．3本章小結(jié)······················································153振動裝置························································153．1振動裝置的設(shè)計·····················