Injini iyisici samandla esibaluleke kakhulu ku-Iphrinta ye-3D, ukunemba kwayo kuhlobene nomphumela wokuphrinta we-3D omuhle noma omubi, ngokuvamile ukuphrinta kwe-3D ekusetshenzisweni kwe-stepper motor.
Ngakho-ke, ingabe kukhona amaphrinta e-3D asebenzisa ama-servo motors? Ayamangalisa futhi anembile ngempela, kodwa kungani ungawasebenzisi kumaphrinta e-3D avamile?
Inkinga eyodwa: kuyabiza kakhulu! Uma kuqhathaniswa namaphrinta ajwayelekile e-3D akukufanele. Uma kungcono kumaphrinta ezimboni kufana kakhulu, kungathuthukisa ukunemba kancane.
Lapha sizothatha lawa ma-motor amabili, ukuhlaziywa okuningiliziwe kokuqhathanisa ukuze sibone ukuthi umehluko uyini.
Izincazelo ezahlukene.
Injini ye-stepperiyidivayisi yokunyakaza ehlukile, ihlukile ku-AC evamile kanyeAma-motor e-DC, ama-motor avamile kugesi ukuze ajike, kodwa i-stepper motor ayijiki, i-stepper motor iwukuthola umyalo wokwenza isinyathelo.
Injini ye-Servo iyinjini elawula ukusebenza kwezingxenye zemishini ohlelweni lwe-servo, engenza isivinini sokulawula, ukunemba kwesikhundla kube ngokunembile kakhulu, futhi ingaguqula isignali ye-voltage ibe yi-torque nesivinini sokushayela into yokulawula.
Nakuba lokhu kokubili kufana kwimodi yokulawula (intambo yokushaya kanye nesignali yokuqondisa), kunomehluko omkhulu ekusetshenzisweni kokusebenza kanye nezikhathi zokusetshenziswa. Manje ukuqhathanisa ukusetshenziswa kokusebenza kokubili.
Ukunemba kokulawula kuhlukile.
Izigaba ezimbiliimoto ye-hybrid stepperi-engeli yesinyathelo ngokuvamile i-, 1.8 °, 0.9 °
Ukunemba kokulawula kwemoto ye-AC servo kuqinisekiswa yi-rotary encoder ngemuva kweshaft yemoto. Kumoto ye-AC servo yedijithali egcwele i-Panasonic, isibonelo, kumoto ene-encoder ejwayelekile yemigqa engu-2500, isilinganiso se-pulse singu-360°/10000=0.036° ngenxa yobuchwepheshe bemvamisa ephindwe kane obusetshenziswa ngaphakathi kwedrayivu.
Kwimoto ene-encoder engu-17-bit, idrayivu ithola ama-pulse angu-217=131072 ngokujikeleza kwemoto ngayinye, okusho ukuthi i-pulse equivalent yayo ingu-360°/131072=9.89 imizuzwana, okuyi-1/655 ye-pulse equivalent yemoto ye-stepper ene-engeli yesinyathelo engu-1.8°.
Izici ezahlukene zemvamisa ephansi.
Imoto ye-Stepper ngesivinini esiphansi izovela into yokudlidliza okunemvamisa ephansi. Imvamisa yokudlidliza ihlobene nesimo somthwalo kanye nokusebenza kwedrayivu, futhi ngokuvamile ibhekwa njengengxenye yemvamisa yokuqala engenamthwalo yemoto.
Lesi simo sokudlidliza okunemvamisa ephansi esinqunywa yisimiso sokusebenza semoto ye-stepper silimaza kakhulu ukusebenza okuvamile komshini. Uma ama-stepper motor esebenza ngesivinini esiphansi, ubuchwepheshe bokuncishisa kufanele busetshenziswe ngokuvamile ukunqoba lesi simo sokudlidliza okunemvamisa ephansi, njengokufaka ama-dampers kumoto, noma ukusebenzisa ubuchwepheshe bokuhlukanisa kudrayivu.
Injini ye-AC servo isebenza kahle kakhulu futhi ayidlidlizi ngisho nangesivinini esiphansi. Uhlelo lwe-AC servo lunomsebenzi wokucindezela i-resonance, ongamboza ukuntuleka kokuqina komshini, kanti uhlelo lunomsebenzi wokuxazulula imvamisa yangaphakathi, ongabona iphuzu le-resonance lomshini futhi wenze kube lula ukulungisa uhlelo.
Ukusebenza okuhlukile.
Ukulawulwa kwe-Stepper motor ukulawula okuvulekile, imvamisa yokuqala ephezulu kakhulu noma umthwalo omkhulu kakhulu kuthambekele enkingeni yezinyathelo ezilahlekile noma ukuvimba, isivinini esiphezulu kakhulu lapho ukuma kuthambekele ekuqhumeni ngokweqile, ngakho-ke ukuqinisekisa ukunemba kokulawula kwayo, kufanele kuxazululwe inkinga yesivinini phezulu naphansi.
Uhlelo lokushayela lwe-AC servo lokulawula i-closed-loop, umshayeli angakwazi ukusampula ngqo isignali yempendulo ye-encoder yemoto, ukwakheka kwangaphakathi kwe-loop yesikhundla kanye ne-speed loop, ngokuvamile ngeke kubonakale ukulahlekelwa kwe-stepper motor yesinyathelo noma isenzakalo esingaphezu kwesivinini, ukusebenza kokulawula kuthembeke kakhulu.
Ngamafuphi, uhlelo lwe-AC servo ezicini eziningi zokusebenza lungcono kune-stepper motor. Kodwa kwezinye izikhathi ezingadingi kakhulu futhi zivame ukusebenzisa i-stepper motor ukwenza i-execution motor. Iphrinta ye-3D ayidingi kakhulu, kanti i-servo motor ibiza kakhulu, ngakho-ke ukukhetha okuvamile kwe-stepper motor.
Isikhathi sokuthunyelwe: Feb-05-2023