Thaum koj pib ua ib qho project zoo siab - txawm tias nws yog kev tsim lub tshuab CNC desktop uas raug thiab tsis muaj qhov yuam kev lossis lub caj npab robotic uas txav tau zoo - kev xaiv cov khoom siv fais fab tseem ceeb feem ntau yog qhov tseem ceeb rau kev vam meej. Ntawm ntau yam khoom siv ua tiav, micro stepper motors tau dhau los ua qhov kev xaiv nyiam rau cov neeg tsim khoom, cov engineers, thiab cov chaw tsim khoom vim lawv txoj kev tswj hwm qhib-loop meej, kev khaws cia torque zoo heev, thiab tus nqi qis.
Txawm li cas los xij, ntsib ntau yam qauv thiab cov kev teeb tsa nyuaj, yuav ua li cas xaiv lub cev muaj zog me me uas tsim nyog tshaj plaws rau koj lub tshuab hlau lossis CNC? Kev xaiv qhov kev xaiv tsis raug yuav ua rau qhov tseeb tsis zoo, lub zog tsis txaus, lossis txawm tias qhov project tsis ua haujlwm. Phau ntawv qhia no yuav ua haujlwm ua koj phau ntawv qhia xaiv kawg, coj koj mus rau ib kauj ruam zuj zus los piav qhia txhua yam tseem ceeb thiab txiav txim siab zoo.
Kauj Ruam 1: Nkag siab txog cov kev cai tseem ceeb - qhov sib txawv tseem ceeb ntawm cov neeg hlau thiab CNC
Ua ntej koj yuav tsum tshuaj xyuas cov kev cai, koj yuav tsum piav qhia meej txog cov kev cai tseem ceeb ntawm koj daim ntawv thov rau lub cev muaj zog.
Cov haujlwm robot (xws li caj npab robotic, cov neeg hlau txawb):
Cov kev xav tau tseem ceeb: kev teb rov qab, qhov hnyav, qhov loj me, thiab kev ua haujlwm zoo. Cov pob qij txha ntawm cov neeg hlau xav tau kev pib nres ntau zaus, kev hloov pauv ceev, thiab kev hloov pauv kev taw qhia, thiab qhov hnyav ntawm lub cev muaj zog cuam tshuam ncaj qha rau tag nrho cov khoom thauj thiab kev siv hluav taws xob.
Cov cim qhia tseem ceeb: Ua tib zoo saib xyuas qhov nkhaus ceev ntawm lub zog (tshwj xeeb tshaj yog qhov nruab nrab mus rau qhov ceev ceev) thiab lub zog rau qhov hnyav piv.
Cov cuab yeej siv tshuab CNC (xws li 3-axis engraving machines, laser cutting machines):
Cov kev xav tau tseem ceeb: lub zog thawb, kev du, kev tswj lub zog torque, thiab kev ua kom raug. Cov cuab yeej tshuab CNC yuav tsum kov yeej qhov kev tawm tsam loj thaum txiav lossis kos duab, tswj kev txav mus los kom tsis txhob muaj kev co, thiab tso qhov chaw kom raug.
Cov cim qhia tseem ceeb: Ua tib zoo saib xyuas kev tswj lub zog ntawm qhov ceev qis, kev daws teeb meem me me kom txo qhov kev co, thiab lub cev muaj zog.
Kev nkag siab txog qhov sib txawv tseem ceeb no yog lub hauv paus rau txhua qhov kev txiav txim siab xaiv tom qab.
Kauj Ruam 2: Kev Txhais Lus ntawm Tsib Qhov Tseem Ceeb ntawm Micro stepper Motors
Nov yog tsib qhov tseem ceeb uas koj yuav tsum tau them sai sai rau hauv phau ntawv qhia cov ntaub ntawv.
1. Qhov loj thiab lub zog torque - lub hauv paus ntawm lub zog
Loj (tus lej ntawm lub hauv paus tshuab): feem ntau yog qhia ua millimeters (xws li NEMA 11, 17, 23). Tus qauv NEMA txhais cov qhov ntev ntawm kev teeb tsa ntawm cov motors, tsis yog lawv cov kev ua tau zoo. NEMA 17 yog qhov loj tshaj plaws rau cov neeg hlau desktop thiab CNC, ua tiav qhov sib npaug zoo ntawm qhov loj me thiab torque. NEMA 11/14 me dua yog qhov tsim nyog rau cov pob qij txha neeg hlau thauj khoom me me; NEMA 23 loj dua yog qhov tsim nyog rau cov cuab yeej tshuab CNC loj.
Tswj lub zog torque: Chav yog N · cm lossis Oz · hauv. Qhov no yog qhov siab tshaj plaws torque uas lub cev muaj zog tuaj yeem tsim thaum lub zog tab sis tsis tig. Qhov no yog qhov qhia tseem ceeb tshaj plaws rau kev ntsuas lub zog ntawm lub cev muaj zog. Rau cov cuab yeej tshuab CNC, koj xav tau qhov tuav torque txaus los tiv taus kev txiav; Rau cov neeg hlau, nws yog qhov tsim nyog los xam qhov siab tshaj plaws torque xav tau rau cov pob qij txha.
Yuav ua li cas kwv yees qhov xav tau torque?
Rau cov cuab yeej siv tshuab CNC, txoj cai yooj yim yog tias lub zog torque uas tuaj yeem muab tsawg kawg 20-30N (kwv yees li 2-3 kilograms) axial thrust yog qhov xav tau. Qhov no yuav tsum tau hloov pauv los ntawm cov hlau lead thiab kev ua haujlwm ntawm cov ntsia hlau. Rau cov neeg hlau, kev suav dynamic nyuaj yog qhov yuav tsum tau ua raws li qhov ntev ntawm caj npab, qhov hnyav thauj khoom, thiab kev nrawm. Nco ntsoov tawm ntawm qhov sib npaug ntawm torque ntawm 30% -50% kom daws tau cov yam tsis paub meej xws li kev sib txhuam thiab inertia.
2.Lub kaum sab xis thiab qhov tseeb ntawm kauj ruam - tus ntsuj plig ntawm kauj ruam
Lub kaum sab xis ntawm kauj ruam: xws li 1.8 ° lossis 0.9 °. Lub cev muaj zog 1.8 ° tig ib zaug txhua 200 kauj ruam, thaum lub cev muaj zog 0.9 ° xav tau 400 kauj ruam. Lub kaum sab xis ntawm kauj ruam me dua, qhov tseeb ntawm lub cev muaj zog ntau dua. Lub cev muaj zog 0.9 ° feem ntau du dua thaum khiav ntawm qhov ceev qis.
3. Tam Sim No thiab Voltage - Kev Sib Tw ntawm Cov Tsav Tsheb
Tam sim no theem: Chav yog Ampere (A). Qhov no yog qhov siab tshaj plaws tam sim no uas txhua qhov winding ntawm lub cev muaj zog tuaj yeem tiv taus. Qhov parameter no txiav txim siab ncaj qha seb koj yuav tsum xaiv lub tsav twg. Lub peev xwm tso zis tam sim no ntawm tus tsav tsheb yuav tsum phim nrog lub cev muaj zog.
Qhov Hluav Taws Xob: Feem ntau cov cav tov raug ntsuas rau lawv qhov hluav taws xob ntsuas, tab sis qhov hluav taws xob ua haujlwm tiag tiag tuaj yeem siab dua qhov no (txiav txim siab los ntawm tus tsav tsheb). Qhov hluav taws xob siab dua pab txhim kho kev ua haujlwm ceev ntawm lub cav.
4. Kev cuam tshuam thiab kev ua haujlwm ceev ceev - cov yam tseem ceeb uas yooj yim tsis quav ntsej
Inductance yog ib qho tseem ceeb uas cuam tshuam rau lub zog ceev ntawm lub cev muaj zog. Cov motors inductance qis tuaj yeem tsim kom muaj tam sim no sai dua, ua rau muaj kev ua tau zoo dua ntawm qhov ceev siab. Yog tias cov pob qij txha ntawm koj tus neeg hlau yuav tsum tig sai, lossis yog tias koj lub tshuab CNC xav kom nce tus nqi pub, koj yuav tsum xaiv cov qauv uas muaj inductance qis.
5. Hom ncej thiab txoj kev tawm ntawm kab - cov ntsiab lus ntawm kev sib txuas tshuab
Hom ncej: axis optical, ib lub ncej tiaj tus, ob lub ncej tiaj tus, ncej iav. D-hom trimming (ib lub ncej tiaj tus) yog qhov feem ntau thiab tuaj yeem tiv thaiv qhov coupling kom tsis txhob plam.
Txoj kev tawm mus: ncaj qha tawm los yog ntsaws rau hauv. Txoj kev ntsaws (xws li 4-pin lossis 6-pin aviation taub hau) yooj yim rau kev teeb tsa thiab kev saib xyuas, thiab yog qhov kev xaiv tshaj lij dua.
Kauj Ruam 3: Tus khub uas tsis tuaj yeem tsis tau - yuav ua li cas xaiv tus tsav tsheb stepper
Lub cev muaj zog nws tus kheej tsis tuaj yeem ua haujlwm thiab yuav tsum tau ua ke nrog lub tshuab tsav tsheb stepper. Qhov zoo ntawm tus tsav tsheb ncaj qha txiav txim siab qhov kev ua haujlwm kawg ntawm lub kaw lus.
Kauj ruam me me: Faib tag nrho ib kauj ruam ua ntau kauj ruam me me (xws li 16, 32, 256 kauj ruam me me). Lub luag haujlwm tseem ceeb ntawm kauj ruam me me yog ua kom lub cev muaj zog txav mus los du heev, txo qhov kev co thiab suab nrov, uas yog qhov tseem ceeb rau qhov zoo ntawm cov cuab yeej tshuab CNC.
Kev tswj tam sim no: Cov tsav tsheb zoo heev muaj lub luag haujlwm ib nrab tam sim no. Txo cov tam sim no thaum lub cev muaj zog nres, txo cov cua sov thiab kev siv hluav taws xob.
Cov chips/modules uas siv ntau tshaj plaws:
Qib nkag: A4988- Tus nqi qis, tsim nyog rau cov haujlwm yooj yim ntawm cov neeg hlau.
Kev Xaiv Tseem Ceeb: TMC2208/TMC2209- Txhawb kev tsav tsheb ntsiag to (StealthShop hom), khiav ntsiag to heev, yog qhov kev xaiv zoo heev rau cov cuab yeej tshuab CNC, thiab muab cov haujlwm tswj hwm siab dua.
Kev ua tau zoo siab: DRV8825/TB6600- muab kev txhawb nqa tam sim no thiab voltage siab dua, tsim rau cov ntawv thov uas xav tau lub zog loj dua.
Nco ntsoov: tus tsav tsheb zoo tuaj yeem ua kom lub cev muaj zog muaj peev xwm ntau tshaj plaws.
Kauj Ruam 4: Cov Txheej Txheem Xaiv Ua Haujlwm thiab Kev Nkag Siab Yuam Kev Feem Ntau
Txoj kev xaiv plaub kauj ruam:
Txhais cov khoom thauj: Piav kom meej meej txog qhov hnyav tshaj plaws, qhov kev nrawm uas xav tau, thiab qhov ceev uas koj lub tshuab xav tau kom txav mus los.
Xam lub zog torque: Siv lub tshuab xam torque online lossis cov qauv mechanical los kwv yees qhov torque xav tau.
Kev xaiv ua ntej ntawm cov motors: Xaiv 2-3 tus qauv sib tw raws li qhov yuav tsum tau ua ntawm lub zog torque thiab qhov loj me, thiab piv rau lawv cov kab ceev torque.
Tus tsav tsheb sib phim: Xaiv lub module tsav tsheb thiab lub hwj chim tsim nyog raws li qhov tam sim no ntawm lub cev muaj zog thiab cov haujlwm xav tau (xws li mute, high subdivision).
Cov Kev Nkag Siab Yuam Kev Feem Ntau (Cov Lus Qhia Txog Kev Zam Qhov Pits):
Kev nkag siab yuam kev 1: Lub zog torque ntau dua, qhov zoo dua. Lub zog torque ntau dhau txhais tau tias lub cev muaj zog loj dua, hnyav dua, thiab siv hluav taws xob ntau dua, uas tshwj xeeb tshaj yog ua rau cov pob qij txha ntawm cov neeg hlau puas tsuaj.
Kev nkag siab yuam kev 2:Tsuas yog tsom mus rau kev tswj lub zog torque thiab tsis quav ntsej txog lub zog torque ceev. Lub cev muaj zog torque siab ntawm qhov ceev qis, tab sis thaum qhov ceev nce ntxiv, lub zog torque yuav txo qis. Nco ntsoov xyuas daim ntawv qhia txog qhov ceev torque.
Kev nkag siab yuam kev 3: Tsis muaj zog txaus. Lub zog fais fab yog lub hauv paus ntawm lub cev muaj zog. Lub zog fais fab tsis muaj zog yuav tsis tuaj yeem tsav lub cev muaj zog kom ua haujlwm tau zoo tag nrho. Lub zog fais fab yuav tsum tsawg kawg yog qhov nruab nrab ntawm lub zog ntsuas ntawm tus tsav tsheb, thiab lub peev xwm tam sim no yuav tsum ntau dua 60% ntawm tag nrho cov hluav taws xob theem ntawm lub cev muaj zog.
Kauj Ruam 5: Cov Kev Xav Txog Qib Siab - Thaum Twg Peb Yuav Tsum Xav Txog Cov Txheej Txheem Kaw?
Cov stepper motors ib txwm muaj yog qhib-loop tswj, thiab yog tias lub nra hnyav dhau thiab ua rau lub cev muaj zog "poob kauj ruam", tus maub los yuav tsis paub txog nws. Qhov no yog qhov tsis zoo rau cov ntawv thov uas xav tau 100% kev ntseeg siab, xws li qib kev lag luam CNC machining.
Lub cev muaj zog stepper kaw-loop sib xyaw ua ke nrog encoder nyob rau tom qab kawg ntawm lub cev muaj zog, uas tuaj yeem saib xyuas qhov chaw hauv lub sijhawm tiag tiag thiab kho qhov yuam kev. Nws ua ke cov txiaj ntsig ntawm lub zog siab rau stepper motors thiab kev ntseeg tau rau servo motors. Yog tias koj qhov project:
Tsis pub muaj kev pheej hmoo ntawm kev hloov pauv.
Nws yog ib qho tsim nyog los siv tag nrho qhov kev ua tau zoo tshaj plaws ntawm lub cev muaj zog (lub voj voog kaw tuaj yeem muab qhov ceev dua).
Nws yog siv rau cov khoom lag luam.
Yog li ntawd, kev nqis peev rau hauv lub kaw lus stepper kaw-loop yog qhov tsim nyog.
Xaus lus
Kev xaiv lub tshuab micro stepper uas tsim nyog rau koj lub tshuab neeg hlau lossis CNC yog ib qho kev tsim kho uas yuav tsum tau xav txog txhua yam ntawm kev siv tshuab, hluav taws xob, thiab kev tswj hwm. Tsis muaj lub tshuab 'zoo tshaj plaws', tsuas yog lub tshuab 'zoo tshaj plaws' xwb.
Txhawm rau kom luv luv cov ntsiab lus tseem ceeb, pib los ntawm qhov xwm txheej ntawm daim ntawv thov, cov neeg hlau muab qhov tseem ceeb rau kev ua haujlwm dynamic thiab qhov hnyav, thaum cov cuab yeej tshuab CNC muab qhov tseem ceeb rau qhov static torque thiab kev ruaj khov. Nkag siab kom meej txog cov yam ntxwv tseem ceeb ntawm torque, tam sim no, thiab inductance, thiab nruab nrog lub tsav tsheb zoo heev thiab lub zog txaus. Los ntawm cov lus qhia hauv tsab xov xwm no, kuv vam tias koj tuaj yeem ua qhov kev xaiv zoo tshaj plaws rau koj qhov project zoo tom ntej, kom ntseeg tau tias koj cov khoom tsim tau khiav raws li qhov tseeb, muaj zog, thiab ntseeg tau.
Lub sijhawm tshaj tawm: Cuaj hlis-25-2025