Kungani amaphrinta e-3D engawasebenzisi ama-servo motors? Uyini umehluko phakathi kwayo ne-stepper motor?

I-motor iyingxenye yamandla ebaluleke kakhulu ku-Iphrinta ye-3D, ukunemba kwayo kuhlobene nomphumela omuhle noma omubi wokuphrinta we-3D, ngokuvamile ukuphrinta kwe-3D ekusetshenzisweni kwe-stepper motor.

Ngakho-ke akhona amaphrinta e-3D asebenzisa ama-servo motors? Yinhle ngempela futhi inembile, kodwa kungani ungayisebenzisi kumaphrinta avamile we-3D?

I-drawback eyodwa: kubiza kakhulu! Uma kuqhathaniswa namaphrinta we-3D ajwayelekile akufanelekile. Uma kungcono for amaphrinta ezimbonini kucishe kufane, kungaba ngcono ukunemba kancane.

Lapha sizothatha lezi zinjini ezimbili, ukuhlaziya okuningiliziwe kokuqhathanisa ukuze sibone ukuthi umehluko.

Izincazelo ezahlukene.

I-stepper motoriyithuluzi elinyakazayo elihlukile, lihlukile kune-AC evamile futhiDC motors, amamotho ajwayelekile kugesi ukuze ajike, kodwa i-stepper motor ayinjalo, i-stepper motor iwukuthola umyalo wokwenza isinyathelo.

I-Servo motor iyinjini elawula ukusebenza kwezakhi zemishini ohlelweni lwe-servo, engenza isivinini sokulawula, ukunemba kwendawo inembe kakhulu, futhi ingaguqula isignali kagesi ibe yi-torque nesivinini sokushayela into yokulawula.

Nakuba lezi ezimbili zifana kumodi yokulawula (intambo ye-pulse nesignali yokuqondisa), kukhona umehluko omkhulu ekusetshenzisweni kokusebenza kanye nezikhathi zokufaka isicelo. Manje isiqhathaniso sokusebenzisa kokubili ukusebenza.

Ukunemba kokulawula kuhlukile.

Izigaba ezimbiliI-hybrid stepper motorisinyathelo angle ngokuvamile , 1.8 °, 0.9 °

Ukunemba kokulawula kwe-AC servo motor kuqinisekiswa isishumeki esijikelezayo esingemuva kwe-motor shaft. Kunjini ye-servo yedijithali ye-Panasonic yedijithali ngokugcwele, isibonelo, yenjini enesishumeki semigqa engu-2500 esijwayelekile, ishayela elilingana no-360°/10000=0.036° ngenxa yobuchwepheshe befrikhwensi ephindwe kane esetshenziswa ngaphakathi kwedrayivu.

Enjinini ene-17-bit encoder, idrayivu ithola ama-pulses angu-217=131072 per motor revolution, okusho ukuthi ishayela layo elilingana no-360°/131072=9.89 amasekhondi, okuyi-1/655 ye-pulse elingana ne-stepper motor ene-engeli engu-1°.

Izici ezihlukile zemvamisa ephansi.

I-stepper motor ngesivinini esiphansi izovela isenzeko sokudlidliza se-low-frequency. Imvamisa yokudlidliza ihlobene nesimo somthwalo kanye nokusebenza kwedrayivu, futhi ngokuvamile ibhekwa njengengxenye yemvamisa yokungalayishi kwemoto.

Lesi simo sokudlidliza se-low-frequency vibration esinqunywa isimiso sokusebenza se-stepper motor siyingozi kakhulu ekusebenzeni okujwayelekile komshini. Lapho ama-stepper motors esebenza ngesivinini esiphansi, ubuchwepheshe bokudambisa kufanele busetshenziswe ngokujwayelekile ukunqoba into ephansi yokudlidliza, njengokwengeza ama-dampers kumotho, noma ukusebenzisa ubuchwepheshe bokuhlukanisa iziqephu ku-drive.

I-AC servo motor isebenza kahle kakhulu futhi ayidlidlizi ngisho nangesivinini esiphansi. Uhlelo lwe-AC servo lunomsebenzi wokucindezela i-resonance, ongamboza ukuntuleka kokuqina kwemishini, futhi uhlelo lunomsebenzi wangaphakathi wokuxazulula imvamisa, okwazi ukubona indawo yokuzwakala kwemishini futhi enze lula ukulungiswa kwesistimu.

Ukusebenza okuhlukile.

I-Stepper motor control iyisilawuli se-loop evulekile, imvamisa ephezulu kakhulu yokuqala noma umthwalo omkhulu kakhulu uthambekele esenzweni sezinyathelo ezilahlekile noma ukuvinjwa, isivinini esikhulu kakhulu lapho ukuma kuthambekele ekudubuleni, ngakho-ke ukuze kuqinisekiswe ukunemba kokulawula kwayo, kufanele kubhekane nenkinga yokusheshisa phezulu naphansi.

Isistimu ye-AC servo drive yokulawula iluphu evaliwe, umshayeli angakwazi isampula ngokuqondile isiginali yempendulo yesishumeki semoto, ukwakheka kwangaphakathi kweluphu yesikhundla kanye neluphu yesivinini, ngokuvamile ngeke kuvele ukulahlekelwa kwe-stepper motor kwesinyathelo noma ukwenzeka kwe-overshoot, ukusebenza kokulawula kunokwethenjelwa kakhudlwana.

Kafushane, uhlelo lwe-AC servo ezicini eziningi zokusebenza lungcono kune-stepper motor. Kepha kwezinye izikhathi ezingafuneki kangako futhi kuvame ukusebenzisa i-stepper motor ukwenza i-execution motor. Iphrinta ye-3D iyisenzakalo esingadingi kakhulu, futhi i-servo motor ibiza kakhulu, ngakho-ke ukukhetha okuvamile kwe-stepper motor.