When selecting the motor, the selection will be made according to the customer's requirements and the characteristics of the linear module. Generally, stepper motors are suitable for low-speed occasions; servo motors are suitable for high-precision and high-speed occasions. In addition to the linear module, the first motor must comprehensively consider the control requirements, cost and other factors, and select the appropriate control motor.
So what are the differences between stepper motors and servo motors? Let's take a look first!
Stepper lub cev muaj zog yog cov cuab yeej txav txav tsis sib xws, uas muaj kev sib txuas tseem ceeb nrog cov cuab yeej digital tswj niaj hnub. Nyob rau hauv tam sim no domestic digital tswj system, stepper motors tau dav siv. Nrog rau qhov tshwm sim ntawm tag nrho - digital AC servo systems, AC servo motors tau nce siv hauv cov tshuab tswj digital. Txhawm rau hloov mus rau txoj kev loj hlob ntawm kev tswj hwm digital, feem ntau ntawm cov kev tswj xyuas cov lus tsa suab siv stepper motors lossis tag nrho -digital AC servo motors li executive motors. Txawm hais tias ob qho tib si zoo sib xws hauv kev tswj hwm (miv lub tsheb ciav hlau thiab kev taw qhia teeb liab), muaj qhov sib txawv loj hauv kev ua haujlwm thiab kev siv. Tam sim no ua ib qho kev sib piv ntawm kev ua tau zoo ntawm ob.
Hauv kev xaus, cov hauv qab no yog:
(1) Kev tswj qhov tseeb yog qhov sib txawv. Kev tswj qhov tseeb ntawm AC servo lub cev muaj zog yog lav los ntawm lub tshuab hluav taws xob teb nyob rau sab nraum qab ntawm lub cev muaj zog
(2) Cov yam ntxwv tsawg- zaus txawv. Lub stepper lub cev muaj zog yog qhov tsis tshua muaj - zaus vibration ntawm qis ceev; AC servo lub cev muaj zog ua haujlwm zoo heev, thiab tsis muaj kev vibration txawm tias qis qis.
(3) Lub zog torque- zaus cov yam ntxwv txawv. Cov zis torque ntawm lub stepping lub cev muaj zog txo nrog qhov nce ntawm qhov ceev, thiab yuav poob sharply ntawm kev ceev dua.
(4) Qhov sib txawv overload muaj peev xwm, stepper motors feem ntau tsis muaj peev xwm overload. AC servo motors muaj zog tshaj lub peev xwm.
(5) Kev ua haujlwm ua haujlwm sib txawv. Kev tswj ntawm lub kauj ruam yog qhib - voj tswj. Yog hais tias qhov pib zaus yog siab dhau los yog lub load loj dhau lawm, nws yooj yim rau plam cov kauj ruam lossis qhov chaw. Thaum lub nrawm nrawm dhau, nws yooj yim ua rau overshoot. Txhawm rau kom ntseeg tau qhov tseeb ntawm nws txoj kev tswj hwm, qhov ceev - nce thiab ceev - teeb meem yuav tsum tau daws kom zoo. AC servo tsav system yog kaw - voj tswj. Tus tsav tuaj yeem ua qauv ncaj qha rau cov lus qhia tawm tswv yim ntawm lub cev muaj zog encoder. Txoj hauj lwm voj thiab ceev voj yog tsim nyob rau hauv. Feem ntau, stepper lub cev muaj zog yuav tsis plam cov kauj ruam lossis overshoot, thiab kev tswj xyuas kev ua tau zoo dua.
(6) Cov lus teb ceev yog qhov sib txawv. Nws yuav siv sij hawm 200 mus rau 400 milliseconds rau lub stepper lub cev muaj zog kom ceev los ntawm ib tug standstill mus rau ib tug ua hauj lwm ceev (feem ntau ntau pua revolutions ib feeb). Kev ua haujlwm nrawm ntawm AC servo system zoo dua.
Yog li ntawd, thaum xaiv ib tug linear module lub cev muaj zog, koj yuav tsum ua raws li koj tus kheej xav tau kev pab, thiab qhov uas suits koj yog qhov zoo tshaj plaws.
