Lub cev muaj zog yog ib qho tseem ceeb heev lub zog tivthaiv ntawm lub3D tshuab luam ntawv, nws qhov tseeb yog muaj feem xyuam rau qhov zoo los yog phem 3D luam ntawv nyhuv, feem ntau 3D luam ntawv ntawm kev siv stepper motor.
Yog li puas muaj 3D tshuab luam ntawv uas siv servo motors? Nws yog qhov txaus ntshai thiab raug, tab sis vim li cas ho tsis siv nws ntawm 3D tshuab luam ntawv li niaj zaus?
Ib drawback: nws kim heev! Piv rau cov tshuab luam ntawv 3D zoo tib yam tsis tsim nyog. Yog tias nws zoo dua rau cov tshuab luam ntawv muaj ntau dua lossis tsawg dua qhov qub, tuaj yeem txhim kho qhov tseeb me ntsis.
Ntawm no peb yuav coj ob lub cev muaj zog, cov ncauj lus kom ntxaws sib piv kom pom qhov txawv li cas.
Txawv txhais.
Stepper lub cev muaj zogyog ib tug discrete tsab ntawv tsa suab, nws txawv ntawm cov AC zoo tib yam thiabDC motors, zoo tib yam motors rau hluav taws xob tig, tab sis stepper lub cev muaj zog tsis yog, stepper lub cev muaj zog yog kom tau txais cov lus txib kom ua ib kauj ruam.
Servo lub cev muaj zog yog lub cav uas tswj kev ua haujlwm ntawm cov khoom siv kho tshuab hauv servo system, uas tuaj yeem ua rau kev tswj ceev, qhov tseeb ntawm txoj haujlwm, thiab tuaj yeem hloov cov teeb liab voltage rau torque thiab ceev kom tsav cov khoom tswj.
Txawm hais tias ob qho tib si zoo sib xws hauv kev tswj hwm (pulse hlua thiab taw qhia teeb liab), muaj qhov sib txawv loj hauv kev siv cov kev ua tau zoo thiab kev siv lub sijhawm. Tam sim no kev sib piv ntawm kev siv ob qho kev ua tau zoo.
Tswj qhov tseeb yog txawv.
Ob-theemhybrid stepper lub cev muaj zoglub kaum sab xis yog feem ntau, 1.8 °, 0.9 °
Kev tswj qhov tseeb ntawm AC servo lub cev muaj zog yog lav los ntawm lub tshuab hluav taws xob teb nyob rau tom qab ntawm lub cev muaj zog. Rau Panasonic tag nrho cov AC servo lub cev muaj zog, piv txwv li, rau lub cev muaj zog nrog tus qauv 2500-kab encoder, qhov sib npaug ntawm cov mem tes yog 360 ° / 10000 = 0.036 ° vim yog lub tshuab hluav taws xob quadruple siv sab hauv tsav.
Rau lub cev muaj zog nrog 17-ntsis encoder, tus tsav tau txais 217 = 131072 pulses ib lub cev muaj zog kiv puag ncig, uas txhais tau hais tias nws cov mem tes sib npaug yog 360 ° / 131072 = 9.89 vib nas this, uas yog 1/655 ntawm cov mem tes sib npaug ntawm lub kaum sab xis ntawm stepper motor 18 °.
Cov yam ntxwv sib txawv tsawg zaus.
Stepper lub cev muaj zog ntawm qis ceev yuav tshwm sim tsis tshua muaj kev vibration tshwm sim. Lub vibration zaus muaj feem xyuam rau lub load thiab kev ua tau zoo ntawm tus tsav, thiab feem ntau suav hais tias yog ib nrab ntawm qhov tsis muaj load pib zaus ntawm lub cev muaj zog.
Qhov no tsis tshua muaj kev vibration phenomenon txiav txim los ntawm lub hauv paus ntsiab lus ntawm kev ua hauj lwm ntawm lub stepper lub cev muaj zog yog heev detrimental rau ib txwm ua hauj lwm ntawm lub tshuab. Thaum stepper motors ua hauj lwm ntawm tsawg ceev, damping tshuab feem ntau yuav tsum tau siv los kov yeej qhov tsawg zaus vibration tshwm sim, xws li ntxiv dampers rau lub cev muaj zog, los yog siv subdivision technology ntawm tus tsav.
Lub AC servo lub cev muaj zog khiav zoo heev thiab tsis vibrate txawm nyob rau qis speeds. AC servo system muaj kev cuam tshuam kev ua haujlwm, uas tuaj yeem npog qhov tsis muaj kev nruj ntawm lub tshuab, thiab lub kaw lus muaj cov kev daws teeb meem sab hauv, uas tuaj yeem ntes cov resonance taw tes ntawm cov tshuab thiab pab txhawb kev hloov kho.
Kev ua haujlwm sib txawv.
Stepper lub cev muaj zog tswj yog qhib-voj tswj, siab heev pib zaus los yog loj heev load yog nquag mus rau qhov tshwm sim ntawm poob cov kauj ruam los yog thaiv, siab heev thaum nres yog nquag overshoot, yog li kom paub tseeb tias nws tswj qhov tseeb, yuav tsum tau nrog rau qhov teeb meem ntawm kev ceev nce thiab nqis.
AC servo tsav system rau kaw-voj tswj, tus neeg tsav tsheb tuaj yeem ncaj qha coj mus kuaj lub cev muaj zog encoder tawm tswv yim teeb liab, sab hauv ntawm txoj haujlwm voj thiab lub voj nrawm, feem ntau yuav tsis tshwm sim stepper lub cev muaj zog poob ntawm kauj ruam lossis overshoot tshwm sim, kev tswj kev ua tau zoo dua.
Nyob rau hauv cov ntsiab lus, AC servo system nyob rau hauv ntau yam ntawm kev ua tau zoo yog zoo dua lub stepper motor. Tab sis nyob rau qee lub sijhawm xav tau tsawg dua kuj feem ntau siv stepper lub cev muaj zog los ua lub tshuab tua hluav taws. Lub tshuab luam ntawv 3D yog lub sijhawm xav tau tsawg dua, thiab lub tshuab servo yog kim heev, yog li kev xaiv dav dav ntawm stepper motor.
Post lub sij hawm: Feb-05-2023