届机械专业外文翻译.docx
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届机械专业外文翻译.docx
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届机械专业外文翻译
原文:
DedicatedtothesinglescrewcompressormachineupdatedtheIntroduction
Abstract:
Thispaperdescribesfourareasfromtheexistingsingle-screwmachinelayoutandstructure,andputouttheadvantagesanddisadvantagesofthelist,becauseofthecompressorplantsingle-screwmachinetoolsandmachinetoolexternalSecurityinformation,theaboveintroductionthereisinevitablyone-sidedandwrong,andarethereforesingle-screwcompressorfortheproductionofreferenceworks.
First,introducethelayoutofmachinetools
Decidethesizeofthecompressordisplacementofthestarsround,screwdiameter,meshsizeandthesizeofthecenterdistance,sodifferentindiameterscrew,machinetoolspindleandtherotarycenterarealsodifferent.Tomeettheprocessingofdifferentdiameterscrew,singlescrewCurrentlythelayoutofmachinetoolsingeneralthereareseveraloptions.
Thefirstis:
machinetoolrotarytoolspindlecenterandthecenterdistanceforthefixed
Machinetoolrotarytoolspindlecenterandthecenterdistanceforthefixed,cannotadjustthecenterdistance.Processingofseveralofthescrewdiameteronthecenterdistancerequiredseveraldifferentspecificationsofthemachine.
Advantages:
simplestructureofthemachine.
Disadvantage:
eachmachinecanonlyprocessaspecificationofthescrew,whenthemarketonacertainspecificationrequirementswhenthescrewcompressor,resultinginamachine,othermachineidle.
Thesecond:
themachinetoolspindleboxforrotary
Processingscrewmachineaccordingtothesizeofthediameterattheprocessingbeforeapointofrotatingspindlebox.Spindleboxthatthemachinecanturnonamachineattheabove-mentionedarticleontheuseoftheimprovements,withthefirststructureofamachinetoolisbasicallythesame.
Advantages:
thestructureofmachinetooleasytoadapttoavarietyofspecificationsoftheprocessingscrew.
Onedisadvantage:
aftertherotatingspindleboxandthetoolspindleturningcenterlinedistancebetweenthecenterlineofaccuratemeasurementdifficult.
2disadvantage:
aftertherotatingspindlespindleboxandthefrontsurfaceoftherotarycuttercenterlinedistancebetweenthereductionofthelargerdiameterofthescrewprocessingislimited.
Thethird:
themachinetoolspindleboxforhorizontalmobile
Boxatthebottomofthespindleandthebasethereisarrangedbetweentherectangularslidingrail,spindleboxperpendiculartothedirectionofmovementofspindlecenterlineandperpendiculartothecenterlineofthetoolrotation.Throughthepowerofthespindleboxsplineshafttothebaseofthetoolfeedmechanism.
Screwdiameter,accordingtothesizeoftheprocessingintheprocessingofthepreviousroundbyhandtothebodyputintothescrewspindleboxmovedtotheappropriatelocation,andthenscrewthespindleboxonafixedbase.SpindleboxavailablefromthemobileGratingdetection,positionerror±0.005mm.
Horizontalspindleboxcanbeusedasamobilemachinecanprocessdiameterφ95~φ385mmanykindbetweenthescrewspecifications.
Φ95~φ385mmprocessingbecauseofthediameterofthescrew,causingthefrontsurfaceandthetoolspindlerotationthedistancebetweenthecenterlineofthemarginistoolarge,theactualapplicationinthedesignspecificationsofthemachineintotwo,aφ95~φ205mmmachinescrewdiameterAnotherφ180~φ385mmmachinescrewdiameter.
Advantages:
avarietyoftoolstoadapttothespecificationsoftheprocessingscrew,eachscrewspecificationsneednotbeprovidedwiththeappropriatemachinetools.
Disadvantage:
thestructureofmachinetoolsandmachinetoolassemblyofthetwokindsofmorecomplexmachinetools,machinetoolsthanthecostoftwokindsofmachinetoolsbeforethehigh.
Second,introducethestructureofmachinetoolspindle
Thelevelofmachinetoolspindleboxonthemainaxisandthebaseoftheverticalaxisdeterminesthedegreeofprecisionwastheprecisionscrewmachining,atthesametimescrewcompressorataspeedofthousandsofhigh-speedrotaryswitch,theaccuracyofthescrewwillbelesssothatthecompressorhaveafever,vibration,lowefficiency,suchaswearandtearsituationquickly.
Currentlyavailablesingle-screwmachinespindlestructureoftheprogramhasthefollowingtwo.
Thefirstis:
bearingradialclearanceisnotadjustablespindlestructure
Beforespindlebearingouttheuseofonepairsofcylindricalrollerbearingsandthrustballbearingcombinationofboth,themainuseofdoublerowcylindricalrollerbearingsunderradialcuttingforce,theuseoftwoballbearingstobearaxialthrustcuttingforce.
Afterthegeneraladoptionofthespindlebearingsoutonepairsofcylindricalrollerbearingsoraballbearingtotheheart.
Mainadvantagesofthisstructure:
themainaxisoftheprocessingandassemblyofsimple,lowcost.
Onedisadvantage:
becausethemainaxisoftheradialbearingclearancecannotbeadjustedsopoorprecisionspindle.Althoughtheuseofbearingsandshaftdiameterfittoeliminatetheradialbearingclearance,buteachbearingdiameterandradialclearanceisnotafixedvalue,soitisdifficulttodesignandprocessingtothequasi-axial-radialandbearingswithboretolerances.
2disadvantage:
itisverydifficulttobuyinthemarketofdomesticallyproducedorimported,C,DorP4,P5classthrustballbearings,machinetoolmanufacturingplantcommonlyusedalternativetotheuseofordinaryclassbearings,whichalsoaffectedtheaccuracyoftheenhancespindle.
Bearingradialclearanceadjustablespindlestructuredonotapplytothegeneralaccuracyofthegeneralmachinetools,doesnotapplytorequireahigheraccuracyofthespindleofmachinetools.
Thesecond:
theradialbearingclearanceadjustablespindlestructure
BeforetheadoptionofaspindlebearingP4classofdoublerowtaperedholecylindricalrollerbearingsandaP4-classdoublerowballbearingthrusttothecombinationofheart.Theuseofthespindleholeofthedoublerowtaperedcylindricalrollerbearingsunderradialcuttingforce,theuseofdoublerowballbearingthrusttothehearttobearpartoftheaxialandradialcuttingforcecuttingforce.
SpindlebearingsgenerallyusedafteraP5classofdoublerowtaperedholecylindricalrollerbearings.
Doublerowtaperedholecylindricalrollerbearingswithinnerringandshaftaretapered1:
12,bearinglocknutwitharoundledabearingintheaxialdisplacementoftheinnerringbearingsandexpansion,toreduceoreliminateBearingradialclearancepurposes.
Mainstructureofsuchadvantages:
highprecisionspindle.Atthefrontspindlediameterφ230mmnoodleontheendmeasuringspindleBeatvalueof0.010mm.Φ230mmcylindricalspindleatthefrontendontheradialaxismeasurementvalueofBeat0.005mm.Thesecondstructureofthespindleofaprecisionspindleaccuracythanthefirstabout50%improve.
Maindisadvantageofthisstructure:
Theprincipalaxisofthemorecomplicatedprocess,thespindleassemblyalsohastheexperiencenecessarytomaketheworkerstooperatethespindleachievethedesirednumericalaccuracy.
Third,thedepthofthetoolfeedcontrol
Requireddifferentprocessingscrewdiameterspiralgroovedepthisalsodifferentfromthedepthofthespiralgroovemmfromdozenstomorethan100millimetersrangearoundthetoolintotheinstitutionsrequiredtofeedthethousandsofringrotationinordertoachieveascrewmachining.
Feedbecauseofthetoolinthetoolrotatingatthesametimeachievemotionfeed,soonanumberofgeneralmachinetoolsusedinmechanical,electricalcontrolmethodofdepthofcutdoesnotapplytosingle-screwmachine.
Singlescrewmachinetoolsgiveagenciesintothefollowingdifferentmethodscanbefeedtocontrolthedepthofpurpose.
Thefirstis:
frictionclutchandelectricalswitchestocontrolthedepthofthetoolfeed
Itsprincipleistocontroldepthofcutincreasesthetoolcutterfeedmechanismincreasestheloadtorquesothatthetoolfeedingmechanismofthefrictiontransmissionchainslippingclutch,amechanicallinkageconcurrentsilenttriggerelectricalswitches,opticalsignalpromptedoperator,whenmanualoperatortodisconnectthetoolintothepowersector.
Theadvantagesofthiscontrolmethodare:
thecontrolmethodissimpleandsparepartsprocessingandoperationalpowerfromtheimpactofasudden.
Disadvantageare:
processingofdifferentdiameterscrewtoadjusttheclutchfrictiondiscspressedthepreloadspring.
Materialbecauseofthedensityofeachscrew,andthehardnessoftheexistenceofsubtledifferencesinthedegreeofcuttingtoolssharpdifferencesexist,thustheaccuracyofthiscontrolmethodwasnottooaccurate,mayleadtoscrewspiralgroovedepthtoleranceistoolarge.
Thesecond:
useofanelectromagneticclutch,encodercontroltoolintothemixtothedepthof
Toolfeedsystem,equippedwithelectromagneticclutchandatoolfordetectingthenumberofrotatingringgearandagunencoder.
Itisatoolofcontrolprinciplehandscrewsurfaceencodertostartcountingswitch,thenstartcountingcountingdevice,whentherotarytooltopre-setnumberoflapswhenthecuttingdepthisreached,theelectromagneticclutchautomaticoffopentothepowertoolintotheconcurrentsilent,opticalsignalpartspromptedtheoperatorhasfinishedprocessing.
Thedetectiondevicethroughthedigitaldisplayshowsthenumberoffeedcirclesorfeed.Tornoffandtheelectromagneticclutch,thetooldoesnotonlyintotherotationwiththeverticalshafttothesport.
Theadvantagesofthiscontrolmethodare:
thedepthofthespiralgroovescrewtolerancecontrolmoreaccura
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