直齒圓錐齒輪振動擺輾成形技術(shù)研究.pdf

1、I分類號：密級：公開公開學(xué)號：2008083單位代碼：10407碩士學(xué)位論文論文題目:直齒圓直齒圓錐齒輪振動擺輾成形技術(shù)研究錐齒輪振動擺輾成形技術(shù)研究研究方向少(無)切削加工技術(shù)切削加工技術(shù)專業(yè)名稱機(jī)械制造機(jī)械制造及其自動化及其自動化研究生姓名蘇紅濤蘇紅濤導(dǎo)師姓名、職稱蔡改貧蔡改貧教授教授20102010年1111月7日江西贛州IIAbstractRotaryfgingisatechnologythatappliedinpartlypr

2、esswksuccessionplasticityfming.Althoughithasthenotableadvantagesuchaslowfmingfcewkpiecehavehighqualitysurfacecomparewiththeconventionalfgingmethoditstillhassomeproblem.Becauseofthepartlycontinuouslydepressesarebeingputon

3、thewkpiecethroughthewholefmingprocesstheloadconditionofthewkpieceisnoteventhiswillleadtodefectivewkmanshipsuchaswasteproductofpulleyshapeverseinversemushroomshape.Toavoidsuchdrawbacksalongitudinalsimpleharmonicvibrationi

4、sputontheMouldswkpiecesysteminRotaryfgingwhichiscalledVibrationalRotaryfging.Thedefmationresistanceofthewkpiecereducedtheoverallfmingbecomemeunifmduringthevibrationfmingprocessthusavoidtheprocessofwasteinproducingwkpiece

5、alsohavebatterfmingquality.SothenewVibrationalRotaryfgingmethodhavewiderapplicationfeground.ThefmingprocessofStraightToothConeGearsunderVibrationalRotaryfgingisresearchedbycombiningtheeticalanalysiscomputersimulationthem

6、ainwksasdoneasfollow：(1)HowthekinematicsofdieaffecttheloadconditionthefactswhichaffectthefmingqualityofwkpieceareresearchedundertheanalysisoffmingprincipleofVibrationalRotaryfging.(2)ByusingthetheyofSpacegeometrytheAnaly

7、ticalequationsofSphericalInvoluteotherStructuralcurveoftheStraightToothConeGearsisestablishedunderthefmingprincipleofthegear’stoothprofilesurface.TheStraightToothConeGearswereparametricdesignedaccuratelyinenvironmentofPr

8、oEngineerwhichprovidethebasisfthedesignofthiskindofgearitsfiniteelementsimulation.(3)CombinedwiththerigidplasticfiniteelementtheythefmingprocessofgearunderdifferentmethodwassimulatedinsoftwareDEFM3Dthroughtheestablishmen

9、tofrelatedphysicalmodelthedesignedsimulationexperimentscheme.ComparedtoRotaryfgingthedefmationresistanceofthegearduringfmingprocessreducedthefmingqualitybecomebetterinvibration.(4)Accdingtothesimulationofthegear’sfmingpr

10、ocessunderdifferentvibrationmodelparametersitsdifferentcombinationitshowsthatthevibrationmodelparametersmustbereasonableiontoobtainbetterfmingquality.(5)TheservicelifeofdieiscloselyrelatedwiththechosenProcessparametersdu