1. Kev cuam tshuam ntawm cov khoom siv thiab cov qauv ntawm workpiece deformation
Tus nqi ntawm deformation thiab complexity ntawm cov duab, ntev, dav thiab phab ntsa thickness yog nyob rau hauv ncaj qha proportional rau lub rigidity thiab stability ntawm cov khoom. Feem ntau, cov kev cuam tshuam ntawm cov yam ntxwv ntawm workpiece deformation yuav tsum raug txo thaum tsim cov khoom. Tshwj xeeb tshaj yog nyob rau hauv cov qauv ntawm qee qhov loj, cov qauv yuav tsum tsim nyog. Nyob rau hauv tus txheej txheem ntawm machining, nws yog ib qhov tsim nyog los tswj lub hardness, looseness thiab lwm yam tsis xws luag ntawm cov dawb paug los xyuas kom meej qhov zoo ntawm cov dawb paug thiab txo cov deformation ntawm lub workpiece.
2. Deformation tshwm sim los ntawm workpiece clamping
Thaum clamping lub workpiece, nws yog ib qho tsim nyog los xaiv qhov tseeb clamping taw tes thiab qhov tsim nyog clamping quab yuam ntawm txoj hauj lwm no. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum ua kom lub clamping point raws li qhov kev txhawb nqa, kom lub clamping quab yuam ua rau kev txhawb nqa. Qhov taw tes clamping yuav tsum nyob ze rau ntawm qhov chaw machining raws li qhov ua tau, thiab txoj hauj lwm uas lub zog tsis yooj yim ua rau clamping deformation yuav tsum raug xaiv.
Thaum muaj cov clamping quab yuam ua nyob rau hauv ntau cov lus qhia ntawm lub workpiece, qhov sib lawv liag ntawm clamping quab yuam yuav tsum tau kho. Lub clamping quab yuam yuav tsum ua ntej ua kom lub workpiece sib cuag nrog kev txhawb nqa, uas tsis yooj yim rau loj heev. Lub ntsiab clamping quab yuam uas sib npaug lub zog txiav yuav tsum ua kom kawg.
Qhov thib ob, qhov chaw sib cuag ntawm lub workpiece thiab lub fixture thiab axial clamping quab yuam yuav tsum tau nce. Txhim kho qhov rigidity ntawm qhov chaw yog qhov zoo heev rau kev daws cov clamping deformation. Txawm li cas los xij, vim cov duab thiab cov yam ntxwv ntawm cov phab ntsa nyias nyias, lawv yuav muaj qhov rigidity tsawg. Nyob rau hauv txoj kev no, deformation yuav tshwm sim nyob rau hauv qhov kev txiav txim ntawm clamping quab yuam.
3. Deformation tshwm sim los ntawm kev ua haujlwm workpiece
Nyob rau hauv tus txheej txheem ntawm kev txiav, vim lub txiav quab yuam, lub workpiece yuav tsim elastic deformation nyob rau hauv cov kev taw qhia ntawm lub zog, uas yog lub phenomenon ntawm ua ib tug riam. Rau kev deformation zoo sib xws, cov kev ntsuas sib xws tuaj yeem ua rau ntawm lub cuab yeej. Thaum ua tiav, cov cuab yeej yuav tsum tau ntse. Ntawm qhov tod tes, qhov no tuaj yeem txo qhov tsis kam tsim los ntawm kev sib txhuam ntawm cov cuab yeej thiab cov khoom ua haujlwm. Ntawm qhov tod tes, nws yog los txhim kho lub peev xwm ntawm cov cua sov ntawm lub cuab yeej thaum txiav lub workpiece, thiaj li yuav txo tau qhov seem seem ntawm lub workpiece.
Nyob rau hauv machining, lub tshav kub generated los ntawm kev sib txhuam ntawm lub cuab tam thiab lub workpiece yuav deform lub workpiece, thiab high-ceev machining feem ntau yog xaiv. Nyob rau hauv no hom ntawm machining, vim hais tias cov chips raug tshem tawm nyob rau hauv ib tug luv luv lub sij hawm, feem ntau ntawm cov kub txiav yog muab tshem tawm los ntawm cov chips, uas yuav ua tau zoo txo cov deformation.
Txhawm rau kom ntseeg tau qhov tseeb ntawm qhov chaw, nws yog ib qho tsim nyog yuav tsum tau txais kev txiav txim siab tsim nyog hauv cov txheej txheem machining. Thaum machining nyias-walled qhov chaw uas yuav tsum tau muaj siab precision, symmetrical machining feem ntau yog saws los sib npaug qhov kev ntxhov siab generated nyob rau hauv lub opposite ob sab kom ncav cuag ib tug ruaj khov lub xeev, thiab lub workpiece yog tiaj tus tom qab machining.