Ib qho tseem ceeb ntawm lub tshuab cuab yeej spindle thiab turntable plays lub luag haujlwm txiav txim siab hauv kev ua haujlwm ntawm lub tshuab cuab yeej.

Spindlebearing

Raws li lub ntsiab lus tseem ceeb ntawm lub tshuab cuab yeej, kev ua haujlwm ntawm spindle yuav cuam tshuam ncaj qha rau kev sib hloov qhov tseeb, ceev, nruj, kub nce, suab nrov thiab lwm yam tsis zoo ntawm lub tshuab cuab yeej, uas nyob rau hauv lem yuav cuam tshuam rau kev ua haujlwm zoo ntawm lub workpiece, xws li. raws li qhov tseeb qhov tseeb ntawm qhov, nto roughness thiab lwm yam ntsuas. Yog li ntawd, txhawm rau tswj kom muaj peev xwm ua tau zoo ntawm cov cuab yeej siv tshuab, kev ua haujlwm siab yuav tsum tau siv. Qhov tseeb ntawm cov bearings siv lub tshuab cuab yeej spindles yuav tsum yog ISO P5 lossis siab dua (P5 lossis P4 yog cov qib ISO, feem ntau yog P0, P6, P5, P4, P2 los ntawm qis mus rau siab), thiab rau cov cuab yeej siv tshuab CNC high-speed, machining. cov chaw zov me nyuam, thiab lwm yam, Kev txhawb nqa spindle ntawm high-precision tshuab cov cuab yeej yuav tsum siv ISO P4 lossis siab dua qhov tseeb; spindle bearings muaj xws li angular contact pob bearings, tapered roller bearings, thiab cylindrical roller bearings.

1. Precisionangular contact pob bearings

Ntawm cov saum toj no-hais hom bearings, precision angular hu rau pob bearings (saib daim duab 2) yog siv dav tshaj plaws. Peb txhua tus paub tias dov cov ntsiab lus ntawm angular contact pob bearings yog pob; vim hais tias nws yog ib qho kev sib cuag (sib txawv ntawm txoj kab kev sib cuag ntawm cov menyuam bearings), nws tuaj yeem muab kev ceev dua, qis dua cov cua sov thiab kev sib hloov siab dua. Hauv qee qhov kev siv spindle ultra-high-speed, hybrid bearings nrog cov pob ceramic (feem ntau Si3N4 lossis Al2O3) kuj siv. Piv nrog rau cov pob txha pob txha pob txha, cov yam ntxwv ntawm cov khoom siv pob zeb ceramic endow ceramic pob bearings nrog kev nruj nruj, kev kub ceev, kub tsis kam, thiab lub neej ntev, kom ua tau raws li cov kev xav tau ntawm cov neeg siv khoom siab rau cov cuab yeej siv cov khoom siv.

2. Precisiontapered cov menyuam bearings

Hauv qee qhov kev siv tshuab cuab yeej siv nrog cov khoom hnyav thiab qee qhov kev xav tau ceev-xws li kev sib tsoo ntawm forgings, xaim tig tshuab ntawm cov kav dej, cov tshuab lathes hnyav thiab cov tshuab milling, thiab lwm yam., xaiv precision tapered roller bearings yog ib qho kev daws teeb meem zoo tshaj plaws. Vim hais tias cov rollers ntawm tapered roller bearing yog tsim nyob rau hauv kev sib cuag kab, nws muaj peev xwm muab siab rigidity thiab load peev xwm rau lub ntsiab ncej; Tsis tas li ntawd, lub tapered roller bearing yog ib tug ntshiab dov bearing tsim, uas yuav txo tau cov kabmob ua haujlwm zoo heev. Torque thiab cua sov kom ntseeg tau tias qhov ceev thiab qhov tseeb ntawm spindle. Txij li cov tapered roller bearings tuaj yeem kho qhov axial preload (clearance) thaum lub sijhawm teeb tsa, qhov no tso cai rau cov neeg siv khoom kom zoo dua qhov kev hloov pauv ntawm cov kabmob tshem tawm thaum lub sijhawm tag nrho lub neej ntawm cov kabmob.

3. Precision cylindrical cov menyuam bearings

Nyob rau hauv daim ntawv thov ntawm cov cuab yeej cuab tam spindles, ob kab precision cylindrical cov menyuam bearings kuj siv, feem ntau yog ua ke nrog precision angular hu pob bearings los yog thrust bearings. Hom kabmob no tuaj yeem tiv taus cov radial loj dua thiab tso cai rau kev nrawm dua. Ob kab ntawm cov menyuam hauv cov kabmob tau teem caij hla, thiab qhov hloov pauv zaus thaum lub sijhawm sib hloov yog siab dua li ntawm ib kab kabmob, thiab qhov amplitude yog txo los ntawm 60% mus rau 70%. Hom kabmob no feem ntau muaj ob daim ntawv: NN30, NN30K ob lub koob bearings nrog tav ntawm lub nplhaib puab thiab cov nplhaib sab nraud; NNU49, NNU49K ob series bearings nrog ribs ntawm lub nplhaib sab nraud thiab cais puab lub nplhaib, cov uas NN30K thiab NNU49K series Lub nplhaib puab yog ib lub qhov tapered (taper 1:12), uas yog txuam nrog tapered journal ntawm lub ntsiab ncej. Lub nplhaib puab tuaj yeem txav axially los nthuav lub nplhaib puab, kom cov kabmob tshem tawm tuaj yeem txo lossis txawm tias ua ntej nruj cov kabmob (tsis zoo tshem tawm lub xeev). Bearings nrog cylindrical bores feem ntau yog kub mounted, siv kev cuam tshuam haum kom txo tau cov kabmob clearance, los yog pre-tightening cov kabmob. Rau NNU49 series bearings nrog lub nplhaib sab hauv sib cais, txoj kev sib tw feem ntau ua tiav tom qab lub nplhaib puab tau nruab nrog lub ntsiab ncej los txhim kho qhov kev sib hloov ntawm lub ntsiab ncej.