Cov cuab yeej abrasive (los yog abrasives) siv rau kev sib tsoo muaj cov yam ntxwv ntawm cov khoom me me, siab hardness thiab zoo kub tsis kam, yog li lawv tuaj yeem ua cov khoom siv hlau tawv thiab cov khoom tsis yog hlau, xws li cov hlau tawv, cemented carbide props, ceramics, thiab lwm yam; Nyob rau hauv cov txheej txheem machining, muaj ntau qhov sib koom hauv kev txiav txav tib lub sijhawm, uas tuaj yeem tshem tawm cov nyias nyias thiab zoo, yog li qhov tseeb machining yog siab thiab tus nqi ntawm qhov roughness me me. Raws li txoj kev ua tiav, kev sib tsoo yog siv dav hauv kev tsim khoom. Tam sim no, vim yog txoj kev loj hlob ntawm kev sib tsoo muaj zog, qhov khoob kuj tseem tuaj yeem ncaj qha hauv av rau qhov yuav tsum tau muaj qhov loj thiab qhov tseeb, yog li tau txais kev tsim khoom ntau dua.
1, Cov txheej txheem ntawm cylindrical nto sib tsoo
(1) Longitudinal sib tsoo txoj kev
Kev sib hloov ceev ceev ntawm kev sib tsoo lub log ua lub luag haujlwm txiav, thiab lub tshuab ua haujlwm tig los ua ib lub voj voog pub mov, thiab ua rau lub sijhawm ntev reciprocating linear feed motion ua ke nrog lub workbench. Txhua lub sij hawm lub workbench reciprocates, lub sib tsoo log ua tiav ib tug transverse pub raws qhov sib tsoo qhov tob kev taw qhia. Txhua qhov pub (txiav qhov tob) yog me me, thiab tag nrho cov nyiaj sib tsoo tau ua tiav nyob rau hauv ntau qhov kev sib tshuam. Thaum lub workpiece yog grinded ze rau qhov kawg loj (nrog ib tug margin ntawm 0.005-0.01mm), nws yuav tsum tau polished ob peb zaug yam tsis muaj transverse pub kom txog thaum lub txim ploj. Txoj kev sib tsoo longitudinal muaj siab machining raug thiab nto zoo thiab muaj zog adaptability. Tib lub log sib tsoo tuaj yeem siv los sib tsoo workpieces nrog cov kab sib txawv thiab qhov ntev, tab sis cov khoom tsim tau tsawg. Nws yog dav siv nyob rau hauv ib thooj, me me batch ntau lawm thiab zoo sib tsoo, tshwj xeeb tshaj yog rau kev sib tsoo workpieces nrog tsis zoo rigidity xws li slender shafts.
(2) Kab rov tav sib tsoo txoj kev (txiav txoj kev)
Lub workpiece yuav tsis ua kom ntev reciprocating tsab ntawv tsa suab, thiab lub sib tsoo log yuav ua transverse feed motion rau lub workpiece tsis tu ncua los yog intermittently ntawm ib tug qeeb ceev kom txog rau thaum tag nrho cov nyiaj tau los raug tshem tawm. Thaum lub sij hawm sib tsoo kab rov tav, qhov chaw sib cuag ntawm lub workpiece thiab lub log sib tsoo yog qhov loj, lub zog sib tsoo loj, thiab tus nqi calorific yog loj thiab concentrated, yog li workpiece deformation, riam hlawv thiab annealing yog ib qho yooj yim tshwm sim. Txoj kev sib tsoo kab rov tav muaj kev ua haujlwm siab thiab tsim nyog rau batch lossis loj ntau lawm. Nws yog tsim rau kev sib tsoo cylindrical nto nrog luv luv, zoo rigidity thiab tsawg precision thiab ncej diameters nrog lub xub pwg nyom ntawm ob sab. Yog hais tias lub sib tsoo log yog trimmed rau zoo, qhov tsim nto kuj tuaj yeem ua hauv av ncaj qha.
(3) Kev sib tsoo txoj kev
Ua ntej, siv txoj kev sib tsoo kab rov tav kom ntxhib grind lub workpiece hauv ntu, nrog {{0}}mm sib tshooj ntawm cov seem uas nyob ib sab, thiab tawm 0.01-0.03mm nplua nyiaj sib tsoo ntawm txhua ntu. Thaum sib tsoo zoo, siv txoj kev sib tsoo longitudinal. Txoj kev sib tsoo no muab cov txiaj ntsig zoo ntawm kev sib tsoo longitudinal thiab transverse sib tsoo, thiab yog tsim rau workpiece nrog loj sib tsoo nyiaj pub dawb (nyiaj pub 0.7-0.6mm).
(4) Txoj kev sib sib zog nqus
Thaum sib tsoo, siv me me longitudinal pub ({{0}}}mm/r) thiab qhov tob txiav loj (0.2-0.6mm) txhawm rau zom tag nrho cov nyiaj pub dawb hauv ib qho kev txiav. Txhawm rau kom tsis txhob muaj kev sib tsoo hnyav thiab kev sib tsoo ceev ceev ntawm cov npoo sab nrauv thiab cov ces kaum ntawm lub log sib tsoo, lub log sib tsoo yuav tsum tau muab txiav rau hauv lub khob lossis cov kauj ruam. Cov kauj ruam nrog cov kab me me sab nraud ua lub luag haujlwm ntawm kev sib tsoo, uas tuaj yeem ua roughened; Cov uas muaj cov kab loj sab nraud ua lub luag haujlwm ntawm kev sib tsoo zoo, thiab lawv yuav tsum tau txiav. Txoj kev sib sib zog nqus sib sib zog nqus tuaj yeem tau txais kev ua haujlwm siab thiab tsim tau, thiab tus nqi ntawm qhov roughness me me. Nws yog tsim rau kev ua rigid stub shafts nyob rau hauv loj ntau lawm.
