Linear motion systems - muaj lub hauv paus lossis vaj tse, kev qhia, thiab kev tsav tsheb - muaj ntau yam qauv tsim thiab teeb tsa kom haum yuav luag txhua daim ntawv thov.Thiab vim tias lawv cov qauv tsim muaj ntau yam sib txawv, lawv feem ntau categorized raws li kev tsim kho thiab kev ua haujlwm tseem ceeb.Case in point: Lub sij hawm "actuator" feem ntau yog hais txog ib qho kev tawm suab nrog ib lub tsev nyob aluminium uas muab cov lus qhia thiab kev tsav tsheb;cov tshuab hu ua "cov ntxhuav," lossis "XY ntxhuav," feem ntau yog tsim los nrog lub hauv paus tiaj tus uas cov lus qhia thiab cov khoom siv tsav tau raug teeb tsa;thiab "linear stage" los yog "linear translation stage" feem ntau yog hais txog lub kaw lus zoo sib xws hauv kev tsim kho rau ib lub rooj linear tab sis tsim los txo qhov ua yuam kev hauv qhov chaw thiab mus ncig.
Linear motion systems tuaj yeem pom peb yam yuam kev: linear yuam kev, angular yuam kev, thiab cov teeb meem tsis raug.
Linear yuam kev yog qhov ua yuam kev hauv qhov chaw raug thiab rov ua dua, uas cuam tshuam rau lub cev muaj peev xwm mus txog qhov xav tau.
Angular yuam kev - feem ntau hu ua yob, suab, thiab yaw - koom nrog kev sib hloov ntawm X, Y, thiab Z axes, feem.Angular yuam kev tuaj yeem ua rau Abbé yuam kev, uas yog qhov yuam kev angular amplified los ntawm kev ncua deb, xws li qhov kev ncua deb ntawm kab ntawv qhia (qhov chaw ntawm qhov yuam kev angular) thiab cov cuab yeej taw tes ntawm lub ntsuas ntsuas.Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias qhov yuam kev angular tam sim no txawm tias cov theem tsis nyob hauv kev txav, yog li lawv tuaj yeem cuam tshuam tsis zoo rau kev ua haujlwm zoo li qub xws li ntsuas lossis tsom.
Planar yuam kev tshwm sim nyob rau hauv ob txoj kev - deviations nyob rau hauv kev mus los nyob rau hauv lub kab rov tav dav hlau, uas yog hu ua ncaj, thiab deviations nyob rau hauv kev mus los nyob rau hauv lub ntsug dav hlau, uas yog hu ua flatness.
Txawm hais tias tsis muaj cov kev cai lossis cov lus qhia nruj rau qhov uas yog ib theem linear, lawv tau txais kev lees paub dav dav tias yog qeb meej tshaj plaws ntawm cov kab tawm suab.Thaum lub kaw lus raug xa mus rau theem linear, nws feem ntau nkag siab tias lub kaw lus yuav muab tsis tau tsuas yog qhov chaw siab thiab rov ua dua, tab sis kuj tsis tshua muaj angular thiab planar yuam kev.Yuav kom ua tiav qib ntawm kev ua tau zoo no, muaj ntau lub hauv paus ntsiab lus uas cov tuam txhab lag luam feem ntau ua raws li kev tsim kho thiab hom khoom siv hauv cov qauv tsim.
Qhov no linear theem siv profiled rail recirculating bearings nrog ib tug linear tsav tsav.
Ua ntej, tsis zoo li lwm cov kab hluav taws xob, uas feem ntau siv aluminium extrusion los yog phaj raws li lub hauv paus, ib theem linear pib nrog precision-av puag.Cov theem tsim los rau qib siab tshaj plaws ntawm flatness, straightness, thiab rigidity feem ntau siv lub hauv paus ua los ntawm steel los yog granite, txawm hais tias txhuas yog siv nyob rau hauv ib co qauv.Hlau thiab granite kuj muaj qis coefficients ntawm thermal expansion dua li txhuas, yog li lawv pom zoo qhov seem stability nyob rau hauv ib puag ncig nrog huab los yog sib txawv kub.
Cov kab ntawv qhia kab kuj tseem txhawb nqa qhov ncaj thiab tiaj tus ntawm kev mus ncig, yog li cov txheej txheem qhia kev xaiv rau ib theem linear yog high-precision profiled rails,hla cov menyuam swb, los yoghuab cua bearings.Cov txheej txheem qhia no tseem muab kev txhawb nqa nruj heev los txo cov kev ua yuam kev angular, uas tuaj yeem ua rau Abbé yuam kev thaum muaj kev cuam tshuam ntawm lub hauv paus ntawm qhov yuam kev (cov lus qhia) thiab qhov kev txaus siab (tooling point lossis load position).
Txawm hais tias muaj ntau hom kab hluav taws xob cov tshuab siv cov tshuab ua haujlwm siab, cov theem linear tau dhau los siv ib qho ntawm ob lub thev naus laus zis: lub pob qhov tseeb siab los yog lub cev muaj zog.Linear motors feem ntau muab qhov siab tshaj plaws ntawm qhov chaw qhov tseeb thiab rov ua dua, vim lawv tshem tawm cov kev ua raws cai thiab rov qab muaj nyob rau hauv lub tshuab tsav tsheb thiab kev sib txuas ntawm tus tsav thiab lub cev muaj zog.Rau qhov tshwj xeeb ntawm sub-micron positioning cov haujlwm,piezo actuatorslos yoglub suab coil motorsfeem ntau yog cov tsav tsheb ntawm kev xaiv, rau lawv qhov tseeb, rov ua dua.
Txawm hais tias lo lus "linear theem" txhais tau hais tias ib leeg-axis motion system, theem tuaj yeem ua ke los tsim ntau lub tshuab xws li XY theem,Planar theem, thiab gantry theem.
Qhov no ob-axis gantry theem siv cua bearings thiab linear motors ntawm lub hauv paus ceramic.
Duab credit: Aerotech
Post lub sij hawm: Mar-29-2023