弧面分度凸轮的理论研究和CAD设计

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1、北京工业大学硕士学位论文弧面分度凸轮的理论研究和CAD设计姓名：陈浩申请学位级别：硕士专业：机械设计及理论指导教师：张跃明20070501ABSTRACTGloboidalindexingcainmechanicaliSoneoftheintermittenttransmissionmechanicalwhichisappliedtotwoaxesofuprightinterleaving．IthasgreatadvantageOVerotherindexingmechanisms，suchashighspeed、preciseinde

2、xandexcellentkinetics。Withspatialsurfacethatcarl’tbeoutspreaded，thesurfaceofgloboidalindexingcamcan’tbemappedthroughgeneralmethodordesignedbythemethodofoutspreadintoplane．Itscomplexprofileandcumbersomedesignprocesspreventitfromfurtherdevelopment．Inthisdissertation,basedo

3、ntheconjugatesurfacestheory,thesurfaceequationofthegloboidalcaln,conjugateequationandtheformulaofpressureangleateestablishedbyapplyingthehomogeneouscoordinatetransformationmethod．Themeshcharacteristicofthemechanismisdeeplyresearchedinthisdissertation,suchastwocircumscrip

4、tioncurveswhichjudgeiftheconjugatesurfacecouldmeshproperly，itsprincipalcurvature,thetoothprofileinaxialsectionandnormalsection．SomecalculateexamplesandconclusionaregiVeil．UsingMATLABtogettwocircumscriptioncurveswhichjudgeiftheconjugatesurfacecouldmeshproperly．itsprincipa

5、lctLrvature，thetoothprofileinaxialsectionandnormalsection．TheresearchofgloboidalindexingcamathomemainlyfocusesonthesimplegloboidalindexingCam．Therefore，Weknowlittleaboutmanufacturingofthe羽oboidalindexingcam．andtheoriesofdesign．Inthisdissertation,analysisandcomparisonofth

6、emanufacturingmethodsarebasedontheinformationathomeandabroad．Andalso．wimthecooperatingwiththestaffofThefirstmaclfineplant．foundtheverymanufacturingmethodofgloboidalindexingcamusedbyNCmanufacturec,enteristhecombinationofforming-methodanddoubleenvelop．Nowadays，accordingtot

7、heparametersofferedinthedissertation，thespecialmachinehasbeenmadebyEMAGcompanyinGerman．Anapplicationprogramfor百oboidalindexCamdesigningisdesigned．Theprogramisusedtocalculatetheoffsetofworkingcutterandoutputtheprojectofcutter仃aceandtheanglevariationwhilechangingthecutters

8、pacing．Byinputingtheparameterofthetimingchartandselectingthekinematicrules，wecangettherelationshipbetwe