Thaum nws los txog rau precision machinery, kev xaiv ntawm lub servo lub cev muaj zog thiab stepper lub cev muaj zog tuaj yeem ua qhov sib txawv tseem ceeb. Ib qho ntawm qhov sib txawv tseem ceeb ntawm ob yog lawv cov yam ntxwv tsawg zaus. Stepper motors yuav raug kev txom nyem los ntawm tsawg zaus kev vibration ntawm qis ceev, uas tuaj yeem ua rau lub tshuab ua haujlwm tsis zoo. Qhov no yog vim qhov xwm ntawm lawv txoj haujlwm, uas ua rau muaj qhov chaw ruaj khov resonance. Ntau tus tsav tsheb stepper lub cev muaj xws li kev suav tsis siv neeg ntawm qhov taw tes resonance, uas kho cov tswj algorithm kom txo qis kev co.
AC servo motors ua haujlwm zoo, txawm tias nyob rau hauv qis qis, thiab muaj kev ua haujlwm hauv resonance suppression. Cov motors no muaj peev xwm los them nyiaj rau cov teeb meem kev sib tsoo thiab suav nrog kev ntsuas zaus uas tuaj yeem txheeb xyuas cov ntsiab lus ntawm cov tshuab resonance, ua rau kev kho kom yooj yim dua.
Lwm qhov sib txawv tseem ceeb ntawm servo thiab stepper motors yog lawv txoj haujlwm ua haujlwm. Stepper motors siv qhib-voj tswj, uas txhais tau hais tias siab pib zaus los yog hnyav loads tuaj yeem ua rau muaj qhov tshwm sim hu ua cov kauj ruam uas ploj lawm lossis rotor xauv. Ib yam li ntawd, nres lub cev muaj zog ntawm kev kub ceev tuaj yeem ua rau overshooting. Yuav kom tswj tau qhov tseeb, acceleration thiab deceleration yuav tsum tau ua tib zoo tswj. Nyob rau hauv sib piv, AC servo lub cev muaj zog tsav tshuab siv kaw-voj tswj thiab ncaj qha qauv encoder tawm tswv yim teeb liab. Lawv suav nrog txoj haujlwm thiab kev nrawm nrawm thiab tsis raug kev txom nyem los ntawm cov kauj ruam uas ploj lawm lossis overshoots, uas ua rau muaj kev tswj hwm kev ua tau zoo dua.
Kev xaiv ntawm servo thiab stepper motors rau precision machinery nyob ntawm cov kev cai tshwj xeeb ntawm daim ntawv thov. Cov yam ntxwv xws li cov yam ntxwv ntawm kev thauj khoom, ib puag ncig kev ua haujlwm, thiab kev tswj xyuas qhov tseeb yuav tsum raug coj mus rau hauv tus account. Txawm li cas los xij, nws yog qhov tseeb tias servo motors muaj kev ua tau zoo dua thiab kev ntseeg siab hauv kev sib piv rau stepper motors.
Thaum nws los txog rau precision machinery, kev xaiv ntawm lub cev muaj zog tuaj yeem ua rau muaj kev cuam tshuam loj rau kev ua tau zoo thiab raug. Ob feem ntau siv motors nyob rau hauv precision machinery yog servo motor thiab stepper motor. Thaum ob lub cev muaj zog ua haujlwm zoo sib xws, muaj qhov sib txawv hauv lawv qhov kev tsim thiab kev ua haujlwm.
Nruab nrab ntawm servo thiab stepper motors yog lawv cov yam ntxwv torque-frequency. Stepper motors muaj ib tug txo torque tso zis raws li kev ceev nce, thiab nyob rau hauv siab dua speeds, lub torque poob drastic. Qhov no txwv stepper motors mus rau qhov siab tshaj plaws kev khiav hauj lwm ceev ntawm ib ncig ntawm 300-600 RPM. Ntawm qhov tod tes, AC servo lub cev muaj zog xa tawm qhov tso tawm tsis tu ncua nyob rau hauv lawv qhov ntsuas nrawm ntawm feem ntau 2000-3000 RPM, thiab tuav lub zog tas li tshaj qhov ntsuas ceev.
Lawv ceev teb kev ua tau zoo. Stepper motors tuaj yeem siv sijhawm li 200-400 milliseconds kom nrawm ntawm xoom mus rau lawv qhov kev ua haujlwm ceev, uas feem ntau yog nyob rau hauv ob peb puas RPM ntau yam. AC servo systems, ntawm qhov tod tes, muaj kev ua haujlwm nrawm nrawm. Piv txwv li, 400W AC servo lub cev muaj zog los ntawm Delta tuaj yeem ncav cuag nws qhov ntsuas ceev ntawm 3000 RPM hauv ob peb milliseconds, ua rau nws yog qhov kev xaiv zoo rau cov ntawv thov uas yuav tsum tau ceev pib-nres tswj.
Nyob rau hauv cov ntawv thov heev, qhov kev ua tau zoo ntawm AC servo lub cev muaj zog tshaj li ntawm lub cev muaj zog stepper. Nyob rau hauv Tuam Tshoj, thaum muaj ntau yam kev lag luam sectors, muaj coob tus tseem tab tom ntes mus rau high-end khoom thiab accumulations xav tau rau kev loj hlob ntawm advanced electronics. Txawm li cas los xij, nrog kev tsim kho tshiab thiab kev txhim kho tas li, qhov sib txawv hauv cov tshuab precision yuav sai sai no txuas ntxiv.
Xaiv txoj cai lub cev muaj zog rau precision machinery yog qhov tseem ceeb, thiab nkag siab qhov sib txawv ntawm servo thiab stepper motors yog qhov tseem ceeb hauv kev xaiv txoj cai. AC servo motors ua tau zoo nyob rau hauv high-speed, high-precision daim ntaub ntawv, thaum stepper motors yog tsim nyog rau tsawg-ceev thiab tsawg-precision daim ntaub ntawv.
Thaum nws los txog rau cov cuab yeej siv tshuab precision, qhov kev xaiv ntawm lub cev muaj zog tuaj yeem cuam tshuam kev ua haujlwm zoo. Ob hom kev siv lub cev muaj zog rau cov tshuab precision yog servo motors thiab stepper motors. Thaum ob lub cev muaj zog tuaj yeem ua tiav qhov siab, muaj qhov sib txawv tseem ceeb hauv lawv qhov kev tswj xyuas qhov tseeb.
Stepper motors, uas tuaj nyob rau hauv ob-theem thiab tsib-theem hybrid hom, feem ntau muaj lub kaum sab xis ntawm 1.8 lossis 0.9 degrees rau ob-theem, thiab 0.72 lossis {{ 9}}.36 degrees rau tsib theem. Ntawm qhov tod tes, AC servo motors ua tiav lawv cov kev tswj xyuas qhov tseeb los ntawm lub tshuab hluav taws xob teb nyob rau sab nraum qab ntawm lub cev muaj zog. Rau cov motors nrog ib tug 17-ntsis encoder, tus neeg tsav tsheb receiver 131, 072 pulses rau txhua qhov kev sib hloov ntawm lub cev muaj zog, sib npaug rau cov mem tes sib npaug ntawm 0.0027466 degrees. Qhov no yog kwv yees li 1/655 ntawm cov mem tes sib npaug ntawm lub cev muaj zog stepper nrog lub kaum sab xis ntawm 1.8 degrees.
Hauv cov ntsiab lus, thaum ob qho tib si servo thiab stepper motors tuaj yeem muab cov qib siab ntawm qhov tseeb, kev tswj xyuas qhov tseeb ua tiav los ntawm servo motors tuaj yeem ua tau ntau dua vim lawv cov ntawv hloov pauv. Thaum xaiv hom lub cev muaj zog rau lub tshuab precision, kev nkag siab qhov sib txawv ntawm kev tswj qhov tseeb tuaj yeem yog qhov tseem ceeb rau kev xaiv lub cev muaj zog rau txoj haujlwm.
