Kusiyana kwa makina a cnc pakati pa Servo motors ndi Step motors?

Osatengera3d atc cnc rauta makina, Makina odulira laser a CO2kapenaSS CS laser kudula makinaetc. Njinga ndi chimodzi mwa zigawo zofunika kwambiri ndi zofunika.Magalimoto ndi oyendetsa nawonso4 × 8 ft cnc rautakusuntha dongosolo.Injini ndi dalaivala ndizofunikira kwambiri pakugwira ntchito komanso kulondola kwa makina.Especial ntchito mwatsatanetsatane.Palinso zinthu zina zambiri zofunika zomwe zimakhudza kulondola kwa makina.Koma pamapeto pake, zimazindikirika poyang'anira kayendedwe ka galimoto ndi kulandira chizindikiro.

 

Pali mitundu iwiri ya injini: Servo motor ndi step motor.Padziko lapansi, pali ambiri opanga ma servo motor komanso opanga masitepe ambiri.Tekai amangosankha mtundu wotchuka padziko lonse lapansi.Kwa servo motor, timasankha nthawi zonse France Shield, Japanese Yaskawa, Taiwan Delta ndi Syntec etc. Step motor timagwiritsa ntchito Leadshine, 34MA, 450B kapena 450C.Kodi pali kusiyana kotani kwa step motor ndi servo motor?

 

Masewero osiyanasiyana: Ngati ma frequency oyambira amakwerera ndi okwera kwambiri kapena katundu ndi wamkulu kwambiri, ndikosavuta kutaya masitepe kapena kuyimitsa.Liwiro likakhala lalitali, ndikosavuta kuyambitsa kupitilira.Choncho, kuti atsimikizire kuwongolera kwake, vuto la kuthamanga ndi kutsika liyenera kuchitidwa bwino.

 

Dongosolo la AC servo drive ndi lotsekeka-loop control, drive imatha kutengera mwachindunji chizindikiritso cha encoder ya mota, ndipo kuzungulira kwamkati ndi kuzungulira kwa liwiro kumapangidwa.Nthawi zambiri, chodabwitsa cha sitepe imfa kapena overshoot wa makwerero galimoto sizidzachitika, ndi ntchito ulamuliro ndi odalirika.

 

Ubwino wa ma servo motors kuposa ma stepper motors ndi awa

 

Chitonthozo: Kutentha ndi phokoso zimachepetsedwa kwambiri.

 

Liwiro: ntchito yabwino yothamanga kwambiri, liwiro lodziwika bwino limafikira 20003000 rpm;

 

Kulondola: kuwongolera kotseka kwa malo, kuthamanga ndi torque kumakwaniritsidwa;vuto la stepper motor kunja kwa sitepe likugonjetsedwa;

 

Kusunga Nthawi: Nthawi yoyankha yosinthika ya mathamangitsidwe agalimoto ndi kutsika ndi yayifupi, nthawi zambiri mkati mwa makumi a milliseconds;

 

Khola: The otsika-liwiro opareshoni ndi khola, ndi makwerero ntchito chodabwitsa ofanana ndi makwerero galimoto sichitika pamene otsika-liwiro ntchito ikuchitika.Zogwiritsidwa ntchito pazochitika zomwe zili ndi zofunikira zoyankhidwa mwachangu;

 

Kusintha kwamphamvu: Kutha kolimbana ndi kuchulukirachulukira, kutha kupirira katundu kuwirikiza katatu kuchuluka kwa ma torque ovotera, makamaka oyenera nthawi ndi kusinthasintha kwapang'onopang'ono komanso zofunikira zoyambira mwachangu;

 

Servo motere

 

Servo ndikuwongolera kotseka, stepper ndikuwongolera kotseguka, uku ndiye kusiyana kofunikira kwambiri.Mwachindunji, servo motor ndi yotsekedwa-loop control (yomalizidwa ndi encoder mayankho, etc.), ndiko kuti, liwiro la mota lidzayesedwa mu nthawi yeniyeni;stepper motor ndi yotseguka-loop control, kulowetsa pulse, stepper motor imatembenuza ngodya yokhazikika, koma Kuthamanga sikuyesedwa.

 

Makokedwe oyambira a injini ya servo ndi yayikulu kwambiri, ndiye kuti, koyambira kumathamanga.Liwiro lovotera litha kufikika pakanthawi kochepa.Ndioyenera kuyambitsa ndi kuyimitsa pafupipafupi ndipo pamakhala chofunikira poyambira.Panthawi imodzimodziyo, mphamvu ya injini ya servo ikhoza kukhala yaikulu kwambiri, ndipo imagwiritsidwa ntchito kwambiri popanga.Kuyambika kwa stepper motor kumakhala pang'onopang'ono, ndipo kumayenera kudutsa pafupipafupi kuchokera kumunsi kupita kumtunda.Ma Stepper motors nthawi zambiri sakhala ndi mphamvu zambiri, pomwe ma servo motors amakhala odzaza kwambiri.

 

Parameter ya step motor yomwe timagwiritsa ntchito:

 

	Zovoteledwa panopa	Gawo inductance	Chiwerengero cha otsogolera	Step angle	Torque	Kulemera	Utali
Chigawo	A	mH		°	NM	KG	MM
450A	4	1	4	1.8°/0.9°	2.5	2.3	76
450b	5	0.9	4	1.8°/0.9°	5.3	3.5	114
450C	6	1.2	4	1.8°/0.9°	9	4.1	151
311	3	1.6	4	1.8°/0.9°	1.4	1	75