Iyo mota chinhu chakakosha chesimba chikamu pane3D printer, kurongeka kwayo kune hukama kune yakanaka kana yakaipa 3D kudhinda maitiro, kazhinji 3D kudhinda pakushandiswa kwe stepper mota.
Saka pane here maprinta e3D anoshandisa servo motors? Iyo inotyisa chaizvo uye yakarurama, asi wadii kuishandisa pane yakajairwa 3D maprinta?
Imwe drawback: inodhura zvakanyanya! Kuenzaniswa neakajairwa 3D maprinta hazvina kukodzera. Kana zviri nani kune maindasitiri anodhinda zvakanyanya kana zvishoma zvakafanana, zvinogona kuvandudza kurongeka zvishoma.
Pano isu tichatora aya maviri mota, yakadzama yekuenzanisa ongororo kuti tione kuti mutsauko chii.
Tsanangudzo dzakasiyana.
Stepper motandeye discrete inofamba mudziyo, yakasiyana neyakajairwa AC uyeDC mota, mota dzakajairwa kumagetsi kutendeuka, asi stepper mota haisi, stepper mota ndeye kugamuchira murairo wekuita nhanho.
Servo mota ndiyo injini inodzora kushanda kwemechanical zvikamu mu servo system, iyo inogona kuita kukurumidza kwekutonga, kunyatsoita chinzvimbo, uye inogona kushandura chiratidzo chevoltage kuita torque uye kumhanya kutyaira chinhu chekudzora.
Kunyange zvazvo maviri acho akafanana mukugadzirisa maitiro (pulse tambo uye chiratidzo chekutungamira), pane misiyano mikuru mukushandiswa kwekuita uye zviitiko zvekushandisa. Iye zvino kuenzanisa kwekushandiswa kwemaitiro maviri.
Kudzora kurongeka kwakasiyana.
Zviviri-chikamuhybrid stepper motanhanho kona kazhinji , 1.8 °, 0.9 °
Iko kurongeka kwekutonga kweiyo AC servo mota inovimbiswa neinotenderera encoder kuseri kwemota shaft. Kune Panasonic yakazara dijitari AC servo mota, semuenzaniso, kune mota ine yakajairwa 2500-mutsara encoder, iyo pulse yakaenzana 360 °/10000=0.036 ° nekuda kwequadruple frequency tekinoroji inoshandiswa mukati mekutyaira.
Kumota ine 17-bit encoder, dhiraivha inogamuchira 217=131072 pulses per motor revolution, zvinoreva kuti pulse yayo yakaenzana i360°/131072=9.89 seconds, inova 1/655 yepulse yakaenzana ne stepper motor ine nhanho ye1.
Mhando dzakasiyana dzepasi-frequency.
Stepper mota pakumhanya kwakaderera ichaonekwa yakaderera-frequency vibration phenomenon. Iyo vibration frequency ine hukama nemamiriro ekuremerwa uye kuita kwekutyaira, uye inowanzoonekwa sehafu yeasina-mutoro wekutanga frequency yemota.
Iyi yakaderera-frequency vibration phenomenon yakatemwa nemusimboti wekushanda weiyo stepper mota inokuvadza zvakanyanya kune yakajairika kushanda kwemuchina. Kana ma stepper motors achishanda nekumhanya kwakaderera, tekinoroji yekunyorovesa inofanirwa kushandiswa kukurira yakaderera frequency vibration phenomenon, sekuwedzera madhamu kumota, kana kushandisa kupatsanura tekinoroji pakutyaira.
Iyo AC servo mota inomhanya zvakanyanya uye haizungunuke kunyangwe pakumhanya kwakaderera. AC servo system ine resonance kudzvinyirira basa, iyo inogona kuvhara kushomeka kwekuomarara kwemuchina, uye sisitimu ine yemukati frequency resolution basa, iyo inogona kuona resonance point yemuchina uye kufambisa kugadzirisa system.
Kusiyana kwekushanda kwekushanda.
Stepper mota inodzora yakavhurika-loop control, yakawandisa yekutanga frequency kana yakawandisa mutoro inotarirwa kune chiitiko cheakarasika nhanho kana kuvharika, yakakwira zvakanyanya kumhanya kana kumira kunoda kupfuudza, saka kuve nechokwadi chekutonga kwayo kurongeka, kunofanirwa kubata nedambudziko rekumhanyisa kumusoro nekudzika.
AC servo drive system yekuvharika-loop control, mutyairi anogona kuenzanisa zvakananga mota encoder mhinduro chiratidzo, iyo yemukati kuumbwa kweiyo chinzvimbo loop uye kumhanya loop, kazhinji haizoratidzike stepper mota kurasikirwa kwenhanho kana overshoot chiitiko, kutonga kwekuita kunovimbika zvakanyanya.
Muchidimbu, iyo AC servo system mune akawanda maficha ekuita iri nani pane inotsika mota. Asi mune dzimwe nguva dzisinganyanyi kudiwa zvakare dzinowanzo shandisa stepper mota kuita mota yekuuraya. Iyo 3D printer inguva isinganyanyi kudiwa, uye servo mota inodhura zvakanyanya, saka iyo yakajairika sarudzo ye stepper mota.
Nguva yekutumira: Feb-05-2023