經(jīng)典word整理文檔，僅參考，雙擊此處可刪除頁眉頁腳。本資料屬于網(wǎng)絡(luò)整理，如有侵權(quán)，請(qǐng)聯(lián)系刪除，謝謝！tosingleAbstract:Thispaperdescribesfourareasfromtheexistingsingle-screwmachinelayoutandstructure,andputouttheadvantagesanddisadvantagesofthelist,becauseofthecompressorplantsingle-screwmachinetoolsandmachinetoolexternalSecurityinformation,theaboveintroductionthereisinevitablyone-sidedandwrong,andarethereforesingle-screwcompressorfortheproductionofreferenceworks.Decidethesizeofthecompressordisplacementofthestarsround,screwdiameter,meshsizeandthesizeofthecenterdistance,sodifferentindiameterscrew,machinetoolspindleandtherotarycenterarealsodifferent.Tomeettheprocessingofdifferentdiameterscrew,singlescrewCurrentlythelayoutofmachinetoolsingeneralthereareseveraloptions.Thefirstis:machinetoolrotarytoolspindlecenterandthecenterdistanceforthefixedMachinetoolrotarytoolspindlecenterandthecenterdistanceforthefixed,cannotadjustthecenterdistance.Processingofseveralofthescrewdiameteronthecenterdistancerequiredseveraldifferentspecificationsofthemachine.Disadvantage:eachmachinecanonlyprocessaspecificationofthescrew,whenthemarketonacertainspecificationrequirementswhenthescrewcompressor,resultinginamachine,othermachineidle.Processingscrewmachineaccordingtothesizeofthediameterattheprocessingbeforeapointofrotatingspindlebox.Spindleboxthatthemachinecanturnonamachineattheabove-mentionedarticleontheuseoftheimprovements,withthefirststructureofamachinetoolisbasicallythesame.Advantages:thestructureofmachinetooleasytoadapttoavarietyofspecificationsoftheprocessingscrew.Onedisadvantage:aftertherotatingspindleboxandthetoolspindleturningcenterlinedistancebetweenthecenterlineofaccuratemeasurementdifficult.2disadvantage:aftertherotatingspindlespindleboxandthefrontsurfaceoftherotarycuttercenterlinedistancebetweenthereductionofthelargerdiameterofthescrewprocessingislimited.Boxatthebottomofthespindleandthebasethereisarrangedbetweentherectangularslidingrail,spindleboxperpendiculartothedirectionofmovementofspindlecenterlineandperpendiculartothecenterlineofthetoolrotation.Throughthepowerofthespindleboxsplineshafttothebaseofthetoolfeedmechanism.Screwdiameter,accordingtothesizeoftheprocessingintheprocessingofthepreviousroundbyhandtothebodyputintothescrewspindleboxmovedtotheappropriatelocation,andthenscrewthespindleboxonafixedbase.SpindleboxavailablefromthemobileGratingdetection,positionerror±0.005mm.Horizontalspindleboxcanbeusedasamobilemachinecanprocessdiameterφ95~φ385mmanykindbetweenthescrewspecifications.Φ95~φ385mmprocessingbecauseofthediameterofthescrew,causingthefrontsurfaceandthetoolspindlerotationthedistancebetweenthecenterlineofthemarginistoolarge,theactualapplicationinthedesignspecificationsofthemachineintotwo,aφ95~φ205mmmachineAdvantages:avarietyoftoolstoadapttothespecificationsoftheprocessingscrew,eachscrewspecificationsneednotbeprovidedwiththeappropriatemachinetools.Disadvantage:thestructureofmachinetoolsandmachinetoolassemblyofthetwokindsofmorecomplexmachinetools,machinetoolsthanthecostoftwokindsofmachinetoolsbeforethehigh.Second,introducethestructureofmachinetoolspindleThelevelofmachinetoolspindleboxonthemainaxisandthebaseoftheverticalaxisdeterminesthedegreeofprecisionwastheprecisionscrewmachining,atthesametimescrewcompressorataspeedofthousandsofhigh-speedrotaryswitch,theaccuracyofthescrewwillbelesssothatthecompressorhaveafever,vibration,lowefficiency,suchaswearandtearsituationquickly.Currentlyavailablesingle-screwmachinespindlestructureoftheprogramhasthefollowingtwo.Thefirstis:bearingradialclearanceisnotadjustablespindlestructureBeforespindlebearingouttheuseofonepairsofcylindricalrollerbearingsandthrustballbearingcombinationofboth,themainuseofdoublerowcylindricalrollerbearingsunderradialcuttingforce,theuseoftwoballbearingstobearaxialthrustcuttingforce.Afterthegeneraladoptionofthespindlebearingsoutonepairsofcylindricalrollerbearingsoraballbearingtotheheart.Mainadvantagesofthisstructure:themainaxisoftheprocessingandassemblyofsimple,lowcost.Onedisadvantage:becausethemainaxisoftheradialbearingclearancecannotbeadjustedsopoorprecisionspindle.Althoughtheuseofbearingsandshaftdiameterfittoeliminatetheradialbearingclearance,buteachbearingdiameterandradialclearanceisnotafixedvalue,soitisdifficulttodesignandprocessingtothequasi-axial-radialandbearingswithboretolerances.2disadvantage:itisverydifficulttobuyinthemarketofdomesticallyproducedorimported,C,DorP4,P5classthrustballbearings,machinetoolmanufacturingplantcommonlyusedalternativetotheuseofordinaryclassbearings,whichalsoaffectedtheaccuracyoftheenhancespindle.Bearingradialclearanceadjustablespindlestructuredonotapplytothegeneralaccuracyofthegeneralmachinetools,doesnotapplytorequireahigheraccuracyofthespindleofmachinetools.Thesecond:theradialbearingclearanceadjustablespindlestructureBeforetheadoptionofaspindlebearingP4classofdoublerowtaperedholecylindricalrollerbearingsandaP4-classdoublerowballbearingthrusttothecombinationofheart.Theuseofthespindleholeofthedoublerowtaperedcylindricalrollerbearingsunderradialcuttingforce,theuseofdoublerowballbearingthrusttothehearttobearpartoftheaxialandradialcuttingforcecuttingforce.SpindlebearingsgenerallyusedafteraP5classofdoublerowtaperedholecylindricalrollerbearings.Doublerowtaperedholecylindricalrollerbearingswithinnerringandshaftaretapered1:12,bearinglocknutwitharoundledabearingintheaxialdisplacementoftheinnerringbearingsandexpansion,toreduceoreliminateBearingradialclearancepurposes.Mainstructureofsuchadvantages:highprecisionspindle.Atthefrontspindlediameterφ230mmnoodleontheendmeasuringspindleBeatvalueof0.010mm.Φ230mmcylindricalspindleatthefrontendontheradialaxismeasurementvalueofBeat0.005mm.Thesecondstructureofthespindleofaprecisionspindleaccuracythanthefirstabout50%improve.Maindisadvantageofthisstructure:Theprincipalaxisofthemorecomplicatedprocess,thespindleassemblyalsohastheexperiencenecessarytomaketheworkerstooperatethespindleachievethedesirednumericalaccuracy.Requireddifferentprocessingscrewdiameterspiralgroovedepthisalsodifferentfromthedepthofthespiralgroovemmfromdozenstomorethan100millimetersrangearoundthetoolintotheinstitutionsrequiredtofeedthethousandsofringrotationinordertoachieveascrewmachining.Feedbecauseofthetoolinthetoolrotatingatthesametimeachievemotionfeed,soonanumberofgeneralmachinetoolsusedinmechanical,electricalcontrolmethodofdepthofcutdoesnotapplytosingle-screwmachine.Singlescrewmachinetoolsgiveagenciesintothefollowingdifferentmethodscanbefeedtocontrolthedepthofpurpose.Thefirstis:frictionclutchandelectricalswitchestocontrolthedepthofthetoolfeed.Itsprincipleistocontroldepthofcutincreasesthetoolcutterfeedmechanismincreasestheloadtorquesothatthetoolfeedingmechanismofthefrictiontransmissionchainslippingclutch,amechanicallinkageconcurrentsilenttriggerelectricalswitches,opticalsignalpromptedoperator,whenmanualoperatortodisconnectthetoolintothepowersector.Theadvantagesofthiscontrolmethodare:thecontrolmethodissimpleandsparepartsprocessingandoperationalpowerfromtheimpactofasudden.Disadvantageare:processingofdifferentdiameterscrewtoadjusttheclutchfrictiondiscspressedthepreloadspring.Materialbecauseofthedensityofeachscrew,andthehardnessoftheexistenceofsubtledifferencesinthedegreeofcuttingtoolssharpdifferencesexist,thustheaccuracyofthiscontrolmethodwasnottooaccurate,mayleadtoscrewspiralgroovedepthtoleranceistoolarge.Thesecond:useofanelectromagneticclutch,encodercontroltoolintothemixtothedepthofToolfeedsystem,equippedwithelectromagneticclutchandatoolfordetectingthenumberofrotatingringgearandagunencoder.Itisatoolofcontrolprinciplehandscrewsurfaceencodertostartcountingswitch,thenstartcountingcountingdevice,whentherotarytooltopre-setnumberoflapswhenthecuttingdepthisreached,theelectromagneticclutchautomaticoffopentothepowertoolintotheconcurrentsilent,opticalsignalpartspromptedtheoperatorhasfinishedprocessing.Thedetectiondevicethroughthedigitaldisplayshowsthenumberoffeedcirclesorfeed.Tornoffandtheelectromagneticclutch,thetooldoesnotonlyintotherotationwiththeverticalshafttothesport.Theadvantagesofthiscontrolmethodare:thedepthofthespiralgroovescrewtolerancecontrolmoreaccurate,becauseofseveralsignificanttableshowsthedepthofprocessing,orwantafewlapsandthedepthofprocessingorcirclethenumberofoperationsisalsoveryintuitiveanduser-friendly.Disadvantageare:electricalcontrolofmachinetoolsatthesametimemorecomplexpartsofthiscontrolmethodattheprocessingplant,ifasuddenpowerfailure,thepriordatasetwillbelost.Ifyouaddintheelectricalcontrolofthebatterytopowerattheearly-dimensionaldetectiondevicestomaintainthejob,theproblemcanberesolved.Four,thecontrolgeardrivespaceSinglescrewmachinescrewintheprocessing,duetothespiralgrooveintherotarytoolandtheworkpiecerotationtocompletethesynthesisprocess.Justcutintotheworkpiecewhenthetoolinthetangentialdirectionofrotationhasbeengoingonagreaterresistanceknife,cuttingtoolattheworkpiecetobecutwhentheroleofthespiralgroove,thetoolinthetangentialdirectionofrotationhasbeengoingupagainstasmallerknifeandevenbythespiralgroovethrustworkpiece.Becausethereisabox-holeprocessingmachinetool,gearandotherprocessingerror,thetoolaxisofrotationofthedrivespaceistoolarge,largeamountofso-calledopen.Detectdrivewaytoomuchspaceisafixedpowerinputshaftandoutputshaftrotationshaking,inthecaseofthetransmissionstructureofconventionaldesignandmanufactureofmachinetools,thetransmissionoutputshaftanglespaceatmorethantendegreestothedozensofdegrees.Transmissiongapcausedbytoolargespiralscrewgroovesurfacethenthereisobviousmarks,thusaffectingthemachiningaccuracyofthescrew.Uponcompletionoftheassemblymachinetoolaxisofrotationofthedrivespaceistoolarge,infactaresubjecttovariouserrorsgear,creatingabacklashofthegearistoolarge.Machinetoolsinthemechanicaltransmissiongearareusedregardlessoftheaccuracyofafewoftheclass,thedesignerstakeintoaccountthegearmanufacturingerror,processingerrorboxcenterdistance,temperature,lubricatingoilfilmthickness,theassemblyerrorandotherfactors,machinedesignmustensurethattransmissiongearAcertainamountofbacklash,backlashdecidethesizeofthegeartooththicknesstolerancesize.Single-screwmachinehastheMainDrivefromothermachinetoolstructurespecificity.Inordertoreducetransmissionorreasonablegapsingle-screwmachinetoolscurrentlyusedbythefollowingtwoways.Toolattheoutputshaftrotatingthelocationofcylindricalsymmetrywithradialbrake,brakestanduptothetoolfront-endofthecylindricalrotaryoutputshaft,brakeforspringpreload.Theworkingprincipleofthebrakeisgeneratedbythefrictionbraketoincreasetheoutputshaftdamping,reducingthesensitivityoftherotationaxis.Are:brakeandeasydoesnotchangethestructureoftheoriginalmachinetoolstructure,themethodofindirectreductiontoachievethepurposeofdrivespace,inpracticalapplicationsthereisacertaineffect.Onedisadvantage:thepre-springbraketoolbecauseofthecylindricaloutputshafttoexertagreaterradialforce,infactincreasestheloadmachinetorque,resultinginincreasedmotorpoweratthesametimegears,bearingstoacceleratewearandtear.Disadvantage2:pre-springbrakebecauseoftheoutputshaftofthecylindricaltooltoexertagreaterradialforceonthepossiblegeometryofthetooloutputshaftanegativeimpactonaccuracy.Conclusion:Thisarticledescribesfourareasfromexistingsingle-screwmachinelayoutandstructure,andputouttheadvantagesanddisadvantagesofthelist,becauseofthecompressorplantsingle-screwmachinetoolsandmachinetoolexternalSecurityinformation,theaboveintroductionthereisinevitablyone-sidedandwrong,andarethereforesingle-screwcompressorfortheproductionofreferenceworks.本文從四個(gè)方面介紹了國內(nèi)現(xiàn)有單螺桿加工機(jī)床的布局和結(jié)構(gòu)，并把優(yōu)缺點(diǎn)一一列舉出來，由于壓縮機(jī)生產(chǎn)廠的單螺桿加工機(jī)床和機(jī)床資料對(duì)外保密，以上介紹難免有片面、不妥之處，因此僅供單螺桿壓縮機(jī)生產(chǎn)廠參考。壓縮機(jī)排氣量的大小決定了星輪、螺桿直徑的大小和嚙合中心距的大小，因此螺桿直徑的不同，機(jī)床的主軸與刀具的回轉(zhuǎn)中心也不同。為滿足加工不同直徑的螺桿，目前國內(nèi)單螺桿加工機(jī)床的布局大致有以下幾種方案。機(jī)床的主軸與刀具回轉(zhuǎn)中心的中心距為固定式，中心距不可調(diào)整。加工幾種直徑的螺桿就需要幾種中心距規(guī)格不同的機(jī)床。優(yōu)點(diǎn)：機(jī)床的結(jié)構(gòu)簡單。造成一臺(tái)機(jī)床加工，其他機(jī)床閑置。機(jī)床可根據(jù)加工螺桿直徑的大小在加工前把主軸箱旋轉(zhuǎn)一個(gè)角度。這種主軸箱能夠回轉(zhuǎn)的機(jī)床是對(duì)上述第一種機(jī)床在使用方法上的改進(jìn)，與第一種機(jī)床的結(jié)構(gòu)基本相同。優(yōu)點(diǎn)：機(jī)床的結(jié)構(gòu)簡單，能適應(yīng)多種規(guī)格螺桿的加工。缺點(diǎn)1：主軸箱旋轉(zhuǎn)后主軸回轉(zhuǎn)中心線與刀具回轉(zhuǎn)中心線間的距離不易精確測量。缺點(diǎn)2：主軸箱旋轉(zhuǎn)后主軸前端面與刀具的回轉(zhuǎn)中心線間的距離減少，因此加工較大直徑的螺桿受到限制。第三種：機(jī)床的主軸箱為橫向移動(dòng)式。主軸箱底部與底座之間布置有矩形滑動(dòng)導(dǎo)軌，主軸箱移動(dòng)的方向垂直于主軸回轉(zhuǎn)中心線并垂直于刀具回轉(zhuǎn)中心線。主軸箱的動(dòng)力通過花鍵軸傳給底座內(nèi)的刀具進(jìn)給機(jī)構(gòu)。根據(jù)加工螺桿直徑的大小，在加工前用手輪絲杠進(jìn)給機(jī)構(gòu)把主軸箱移動(dòng)到適當(dāng)