xov xwm

Cov txheej txheem superfinishing ntawm cov kabmob yog dab tsi?

Cov txheej txheem superfinishing tsis yog tsuas yog siv rau hauv kev lag luam bearing xwb, tab sis kuj siv rau hauv cav, thiab lwm yam tshuab precision thiab cov cuab yeej kuj tau pib siv cov txheej txheem no.

Dab tsi yog qhov superprecision bearing?

Bearing superfinishing yog ib txoj kev smoothing uas yog kev txav pub kom ua tiav micro-grinding.

Feem ntau, qhov chaw ua ntej superfinishing yog tig thiab sib tsoo. Tshwj xeeb, nws yog hais txog txoj kev ua kom du uas siv cov cuab yeej abrasive zoo (roj av) ua rau lub workpiece tsis muaj zog heev thaum lub sijhawm ua kom lubrication thiab txias zoo, thiab ua rau lub workpiece tig sai thiab luv luv thaum tig ntawm qhov ceev hauv qhov kev taw qhia ntsug ntawm qhov chaw ua haujlwm qhuav.

Lub luag haujlwm ntawm kev coj tus kheej superfinishing yog dab tsi?

Hauv cov txheej txheem tsim cov kabmob dov, superfinishing yog cov txheej txheem kawg ntawm kev ua cov nplhaib kabmob, uas ua lub luag haujlwm tseem ceeb hauv kev txo lossis tshem tawm qhov sib txawv ntawm cov voj voog uas tshuav los ntawm kev sib tsoo ua tiav, kho qhov yuam kev ntawm cov duab ntawm qhov av, kho nws qhov roughness ntawm qhov chaw, txhim kho cov khoom siv lub cev thiab cov khoom siv ntawm qhov chaw, txo qhov kev co thiab suab nrov ntawm cov kabmob, thiab txhim kho lub luag haujlwm ntawm cov kabmob.

Nws tuaj yeem ua tau raws li peb yam hauv qab no:

1. Nws tuaj yeem txo qhov nthwv dej zoo. Thaum lub sijhawm ua tiav super-finishing, txhawm rau kom ntseeg tau tias cov roj pob zeb ib txwm ua haujlwm ntawm qhov siab ntawm nthwv dej thiab tsis sib cuag nrog lub qhov, lub arc ntawm cov roj pob zeb sib cuag nrog cov khoom ua haujlwm ≥ qhov nthwv dej ntawm qhov nthwv dej ntawm qhov chaw ua haujlwm, yog li qhov kev sib cuag ntawm lub crest loj dua, thiab lub ncov convex raug tshem tawm, yog li txo qhov nthwv dej.

2. Txhim kho qhov yuam kev ntawm lub pob bearing raceway. Super-finishing tuaj yeem txhim kho qhov yuam kev ntawm li 30% ntawm cov raceways.

3. Nws tuaj yeem tsim kev ntxhov siab ntawm qhov chaw ntawm qhov sib tsoo zoo heev. Hauv cov txheej txheem ntawm superfinishing, feem ntau yog tsim cov yas txias deformation, yog li tom qab superfinishing, cov kev ntxhov siab compressive seem yog tsim rau ntawm qhov chaw ntawm qhov workpiece.

4. Nws tuaj yeem ua rau thaj chaw sib cuag ntawm qhov chaw ua haujlwm ntawm lub ferrule nce ntxiv. Tom qab super-finishing, thaj chaw sib cuag ntawm qhov chaw ua haujlwm ntawm lub ferrule tuaj yeem nce ntxiv los ntawm 15% ~ 40% tom qab sib tsoo mus rau 80% ~ 95%.

Cov txheej txheem superfinishing ntawm cov kabmob:

1. Kev txiav cov bearings

Thaum qhov chaw ntawm lub pob zeb sib tsoo sib chwv nrog lub ncov convex ntawm qhov chaw ntxhib raceway, vim yog thaj chaw sib chwv me me thiab lub zog loj rau ntawm thaj chaw, nyob rau hauv qhov kev ua ntawm qee qhov siab, lub pob zeb sib tsoo ua ntej raug rau "kev txiav rov qab" kev ua ntawm cov khoom siv bearing, yog li ntawd ib feem ntawm cov khoom sib tsoo ntawm qhov chaw ntawm lub pob zeb sib tsoo poob thiab tawg, qhia qee cov noob tshiab ntse thiab cov npoo txiav. Tib lub sijhawm, qhov bump ntawm qhov chaw ntawm cov khoom siv bearing raug txiav sai, thiab lub crest thiab txheej sib tsoo puas tsuaj ntawm qhov chaw ntawm cov khoom siv bearing raug tshem tawm los ntawm kev txiav thiab txiav rov qab. Theem no hu ua theem txiav, thiab nws yog nyob rau theem no uas feem ntau ntawm cov hlau tso cai raug tshem tawm.

2. Ib nrab txiav ntawm cov bearings

Thaum lub sijhawm ua haujlwm txuas ntxiv mus, qhov chaw ntawm cov khoom siv bearing yuav maj mam du. Lub sijhawm no, thaj chaw sib cuag ntawm cov pob zeb sib tsoo thiab qhov chaw ntawm cov khoom siv yuav nce ntxiv, qhov siab ntawm ib cheeb tsam yuav txo qis, qhov tob ntawm kev txiav yuav txo qis, thiab lub peev xwm txiav yuav txo qis. Tib lub sijhawm, cov qhov hws ntawm qhov chaw ntawm cov pob zeb sib tsoo yuav raug thaiv, thiab cov pob zeb sib tsoo yuav nyob rau hauv lub xeev semi-txiav. Theem no hu ua theem ib nrab-txiav ntawm kev ua tiav bearing, uas cov cim txiav ntawm qhov chaw ntawm cov khoom siv bearing yuav sib dua thiab muaj qhov tsaus ntuj dua.

3. Theem tiav

Theem no muaj ob kauj ruam: ib qho yog theem hloov pauv ntawm kev sib tsoo; Qhov thib ob yog theem sib tsoo tom qab tsum txiav

Kev sib tsoo hloov theem:

Cov noob abrasive yog nws tus kheej-sharpened, ntug ntawm cov noob abrasive yog smoothed, cov chip oxide pib embedded rau hauv lub qhov khoob ntawm cov roj pob zeb, cov hmoov abrasive thaiv cov roj pob zeb pores, yog li ntawd cov noob abrasive tsuas yog txiav tau weakly, nrog rau extrusion thiab sib tsoo, ces qhov roughness ntawm qhov workpiece yog sai sai txo, thiab qhov chaw ntawm cov roj pob zeb yog txuas nrog cov dub chip oxide.

Nres qhov kev txiav sib tsoo theem:

Cov roj pob zeb thiab cov khoom ua haujlwm sib txhuam tau du heev, thaj chaw sib cuag tau nce ntxiv, qhov siab poob qis, cov noob abrasive tau nkag mus rau hauv cov roj zaj duab xis thiab sib cuag nrog cov khoom ua haujlwm, thaum lub siab ntawm cov roj zaj duab xis ntawm qhov chaw bearing sib npaug nrog lub siab ntawm cov roj pob zeb, cov roj pob zeb tau ntab. Thaum lub sijhawm tsim cov roj zaj duab xis, tsis muaj kev txiav. Theem no yog tshwj xeeb rau superfinishing.