Ua Kom Qhov Kev Tswj Txheej Txheem Txoj Cai Tswj
Yuav ua li cas ua tau zoo li servo system tswj:
1) AC fais fab tuag lawm muaj teeb meem dhau ntawm qhov teeb meem, AC ces tam sim no yuav ua tau ib nrab ntawm ib qho kev hloov ua tus yam ntxwv;
2) AC lub cev, muaj teeb meem ntawm cov hlau nplaum thiab theem, lub sijhawm ncov qaumteb ua ib lub chaw rau kev sib txuas lus, tuaj yeem ua tiav theem tswj;
3) DC tsav, coil raws li lub tsev rau qhov kev taw qhia, coil slot yuav siv tau los ua ib chav nyob tswj DC motor;
Txaus siab tshaj plaws, yog lub hauv paus ntawm kev tswj hwm rau kev tsav lub zog; peb paub tias yuav tsum ua kom tau qhov kev pab cuam ntawm kev tswj hwm, cov neeg tau tsim cov cav ntoo, lub tshuab pulse ntev ntev. stepping, tsis muaj kev ua qoj ua kom lub siab tsis tuaj yeem ua tiav kev tswj hwm;
Kev tswj cov kev pab tswj cov kauj ruam:
1) Piv txwv, ib qho DC tsav, lub plhaub tamsim no hauv cov pawg ntawm qhov chaw, yuav ua rau lub tshuab rotor tig lub kaum ntse ntse, qhov kaum no = 360 / qhov khoob nab npawb;
2) Piv txwv, ib qho AC motor, pulse tam sim no nyob rau hauv daim ntawv ntawm pawg ib pawg, yuav ua rau lub tshuab rotor tig lub kaum sab xis,
no lub kaum ntse ntse = 360 / (tus nab npawb ntawm ncej 2P & npees; theem zauv m);
3) Txawm hais tias peb ncav tsis tau "qhov txiaj ntsig ntawm kev qhia yog muaj tseeb los ntawm kev sib tw 1/10, 1/100 mab, 1/1000 rounds, 1/10000
rounds ... ", peb muaj peev xwm ua tau lub teeb meem tam sim no ua DC motor khiav 1/16 rounds meej (slot number 16);
4) Txawm hais tias peb ncav tsis tau "qhov kev hais ncaj qha ntsiag to yeej yog 1/10 rounds, 1/100 rounds, 1/1000 rounds, 1/10000
rounds ... ", peb tuaj yeem ua tau kom AC AC lub cev tam sim no yuav khiav tau 1/12 kom tiav (4 ncej, 3 theem);
Ntawm chav kawm stepping pulse motor, ib qho nyiaj tam sim no tuaj yeem tig 1/36 rounds los yog ntau dua; Li ntawd, yuav ua li cas kom cuag cov lus precision txhais ntawm workpiece?
Peb txhua tus paub tias qhov ntsuas phau ntawv kev hloov kho pob muaj ib ntxhib qhib pob tesniv thiab zoo qhib lub pob caus; Peb kuj paub txog qhov tseeb
ntsuas cuab yeej micrometer;
Tom qab ntawd peb paub tias siv tus AC pulse yog tig 1/12 rounds AC motor kom ncaj tswj tus workpiece txhais lus txoj kev:
① nruab nrab ntawm lub cav thiab lub pob ntsia hlau siv tus reducer tsav tsheb, nce lub zog ceev, thiaj li ua tiav ib lub teeb meem tam sim no ua pob ntsia hlau khiav 1/10 rounds, 1/100 rounds, 1/1000 rounds, 1/10000 rounds yog tswj ;
② Piv txwv, ib tug 4-ncej 3-theem AC motor, raws li theem theem ntawm peb theem hloov tam sim no, txhua kis
12 AC ib nrab ntawm lub voj voog, tig ib puag ncig;
③ kev ua kom lub cev qij thiab cov tsom iav kom tawg yog 500, uas yog, txhua tus nkag mus rau 12 × 500 AC ib nrab ntawm lub voj voos, lub cev muaj zog khiav 500 round, lub pob ntsia hlau tig ib puag ncig;
④ ballscrew tig ib puag ncig, lub workpiece txhais ib lub suab ntawm 6 hli;
⑤ yog li peb ua tiav AC pulse uas ua lub npas ntsia hlau khiav 12 × 500 = 1/6000 rounds, lub workpiece txhais lus 1 pitch / 6000 = 6mm / 6000 = 0.001mm meej tswj;
⑥ peb tau ua lub plhaub tamsim no, cov haujlwm workpiece yog txav deb li 0.001mm;