Yuav ua li cas ua kom daim iav nto roughness

Daim iav sib tsoo yog dab tsi?
Qhov saum npoo roughness ntawm lub workpiece tom qab sib tsoo yog Ra<0.01μm, and the light is like a mirror, which can image clearly, so it is called mirror grinding. The flatness of the grinding plane is not more than 3μm/1000mm. Surface machining of high precision and high added value parts requires mirror grinding.

Lub tshuab sib tsoo rau daim iav sib tsoo yuav tsum ua raws li cov hauv qab no:

* High precision, nruj thiab kev vibration txo ntsuas;

* Kev sib hloov qhov tseeb ntawm kev sib tsoo log spindle yog siab tshaj 1μm.

* Lub amplitude ntawm kev sib tsoo log nrog rau lub rooj ua haujlwm yog tsawg dua 1μm.

* Lub transverse pub mechanism tuaj yeem raug fretted.

Cov teeb meem hauv qab no yuav tsum tau sau tseg thaum hnav lub log sib tsoo:

1) Feem ntau, qhov nyiaj sib tsoo zoo yog 0 015 ~ 0 02 hli. Thaum lub workpiece yog roughened rau Ra0.8, qhov nyiaj sib tsoo zoo yog 0.005 ~ 0.015mm (qhov nyiaj sib tsoo yuav tsum tau txiav txim siab raws li cov khoom thiab hardness ntawm cov hlau. Rau cov hlau uas muaj siab hardness thiab yooj yim polishing. , tsawg sib tsoo nyiaj yuav tsum tau sab laug), ces lub sib tsoo log yuav tsum tau ua kom tiav.
2) Thaum ua tiav cov kev sib tsoo, thawj zaug khob qhov tuab ntawm li 0.1 hli, ces luas ob zaug nrog 0.02 hli txiav qhov tob, thiab tom qab ntawd txiav peb zaug nrog 0.01mm txiav qhov tob, thiab thaum kawg reciprocate ob zaug yam tsis txiav qhov tob tob. Thaum lub sij hawm ua tiav, qhov transverse pub ceev yog 20-30mm / min. Rau me me steel workpiece, nws yog qhov zoo dua kom qeeb lub transverse pub thaum sib tsoo lub log, tab sis qhov opposite yog qhov tseeb thaum machining lub hardened high speed steel.

3) Thaum hnav lub log sib tsoo, cov dej sib tsoo txaus lossis lwm yam dej txias yuav tsum tau siv los ntxuav qhov chaw sib cuag ntawm lub log sib tsoo thiab cov pob zeb diamond riam, thiab cov khib nyiab sib tsoo yuav tsum tau ntxuav kom huv si kom tsis txhob cuam tshuam kev sib tsoo zoo.

4) Lub pob zeb diamond riam siv nyob rau hauv xov yuav tsum tsis txhob ntse, vim hais tias lub grain loj ntawm lub sib tsoo log yog kuj ntxhib. Txoj kab uas hla ntawm pob zeb diamond cuab yeej yog nyob rau hauv 0.8mm. Thaum hnav ib rab riam ntse ntse,

tus ntoo khaub lig pub tus nqi yuav tsum tau qeeb.
5) Thaum cov tsoos tsho hnav tshiab pib siv, lub ntsej muag roughness me ntsis zuj zus, thiab nws yuav ruaj khov tom qab ib ntus.

Sib tsoo ntau npaum
1) Lub nraub qaum txiav qhov tob ntawm lub log sib tsoo yog li 0.005mm. Raws li qhov xwm thiab hardness ntawm lub workpiece steel, tsim nyog nce los yog txo, xws li siab hardness ntawm quenched steel, rov qab riam tus nqi yog loj heev yooj yim mus ua kub hnyiab, thiab me me steel rov qab riam tus nqi yog me me thiab tsis yooj yim rau polish.
2) Ib leeg hlab ntsha ntawm kev pub noj transverse yog 0.2 ~ 0.4mm. Lub transverse pub ceev muaj kev cuam tshuam zoo rau ntawm qhov chaw roughness, vim hais tias lub log sib tsoo ntawm daim iav sib tsoo muaj peev xwm txiav tsis zoo. Yog hais tias lub transverse pub ceev nce, lub sib tsoo lub log nto yuav puas, yog li ntawd tus du nto yuav tsis tau.
3) Ntev ntev pub yog 12-15m / min. Lub longitudinal pub muaj me ntsis cuam tshuam rau ntawm qhov chaw roughness, tab sis yog tias nws qeeb heev, qhov chaw ntawm lub workpiece yuav tsim corrugations lossis qauv.
4) Tsis muaj qhov tob polishing. Vim yog qhov tsis zoo ntawm kev sib tsoo lub log hauv daim iav sib tsoo, cov cuab yeej siv feem ntau tshwm sim ntawm qhov chaw ua haujlwm (lub voj voog workpiece yog nyob rau hauv cov duab ntawm lub hli, lub duab plaub yog nyob rau hauv cov duab ntawm txoj siv), uas qhia txog. qhov tsis sib xws ntawm lub workpiece, yog li nws yuav tsum tau polished li ntawm ob feeb yam tsis pub noj.

Tsis zoo thiab ntsuas hauv daim iav sib tsoo

Daim iav sib tsoo ntawm qhov chaw grinder feem ntau ua rau qee qhov tsis xws luag, xws li nto corrugations, kub hnyiab, khawb, qauv thiab hnav cov cim (xov ntws), thiab lwm yam. Txhawm rau daws cov teeb meem no, cov kev ntsuas hauv qab no tuaj yeem ua tau:

1) Feem ntau cov ripples yog tshwm sim los ntawm kev sib tsoo lub log, xws li kev sib tsoo ntau dhau, kev sib txawv ntawm spindle, tsis zoo sib npaug ntawm lub cev muaj zog rotor, cov roj tsis sib xws ntawm cov ntxaiv thiab cov kabmob, thiab lwm yam. Tsis tas li ntawd, lub log sib tsoo tsis zoo sib npaug kuj tseem. tsim ripples. Yog hais tias lub log sib tsoo zoo sib npaug thiab tseem muaj ripples, nws yog ib qho tsim nyog yuav tau kho dua los yog kho lub log sib tsoo thiab nws cov khoom sib txuam kom tshem tawm cov ripples.

2) Thaum machining cov ntaub ntawv nrog siab hardness, kev sib tsoo efficiency ntawm lub sib tsoo log tsis zoo, thiab qhov sib tsoo taw tes yuav ua rau kub kub, uas yog ib qho yooj yim mus hlawv lub workpiece (piv txwv li, thaum sib tsoo W18Cr4V, nws yog ib qho yooj yim mus hlawv). Txhawm rau tiv thaiv kev kub nyhiab, yuav tsum muaj cov dej sib tsoo txaus ntawm qhov sib tsoo. Tsis tas li ntawd, tus nqi ntawm cov riam rov qab yuav tsum tsim nyog, tsis yog loj heev. Cov txheej txheem yog txo cov kab nrawm ntawm lub log sib tsoo, uas yog li 18m / s.

3) Muaj kwv yees li ob hom kev khawb hauv daim iav sib tsoo: ib hom khawb yog qhov tsis sib xws, uas yog tshwm sim los ntawm impurity thiab abrasive hais tau ntxuav ntawm lub log sib tsoo thiab cov khoom ua haujlwm. Txoj kev los tshem tawm qhov khawb no yuav tsum tau sib tsoo kua pom, feem ntau yog siv cov hlau nplaum, tooj liab hlau mesh peb lim. Lwm hom kev khawb yog ib kab zoo li cov kab dotted, ntiav, qhov ntev ntawm qhov kev ncua deb yog roughly tib yam, qhov no yog qhov sib tsoo log nplej yuav poob, nrog rau kev sib tsoo log thiab khawb. Lub sijhawm no, txoj kev tshem tawm yog siv cov dej sib tsoo txaus thaum hnav lub log sib tsoo, thiab txiav lub ntsej muag thib ob ntawm lub log sib tsoo rau hauv cov duab oblique nrog qhov dav sab nraud thiab dav sab hauv. Tsis tas li ntawd, kev sib tsoo lub log yuav tsum raug xaiv kom raug, tsis yog mos heev, tsis txhob siv lub log nrog nws tus kheej ntse.

4) Daim iav sib tsoo, yooj yim tshwm sim hauv ntau yam qauv. Muaj ntau ntau yam uas tsim cov qauv, thiab lub ntsiab yog vim li cas yog kev co, nrog rau lub sij hawm vibration ntawm lub sib tsoo log, sab nraud cuam tshuam thiab kev co ntawm lub tshuab uas nyob ib sab, thiab cov qauv yuav kuj tshwm sim thaum lub sib tsoo log yog dhau blunt thiab mob stroke. tsis ruaj khov. Thaum lub tshuab uas nyob ib sab tsis pib zom, ces tus qauv tsis yooj yim tshwm sim.

5) Thaum cov cim kev puas tsuaj (xov hlau ntws) hauv daim iav sib tsoo yog qhov pom tseeb, nws yuav tsum tau siv cov hlau sib tsoo zoo kom tshem tawm cov hlau ntws.

Txawm li cas los xij, thaum siv cov nplua nplej sib tsoo, cov ntsiab lus hauv qab no yuav tsum tau xav txog:

1. Thaum ua tiav lub log sib tsoo, lub pob zeb diamond riam yuav tsum ntse, cov dej sib tsoo yuav tsum txaus, thiab cov khib nyiab yuav tsum tau muab ntxuav kom huv si kom tsis txhob muaj kev cuam tshuam rau qhov chaw sib tsoo.

2. Kev sib tsoo ntau npaum li cas yuav tsum tsim nyog los tiv thaiv qhov kub hnyiab thiab lwm yam kab mob uas cuam tshuam rau qhov smoothness. Ua tib zoo tshem tawm cov nyiaj sib tsoo tsim nyog.

3. Lub sib tsoo log linear ceev yuav tsum tau txo mus rau 15 ~ 18m / s.

4. Cov dej sib tsoo yuav tsum tau ua tib zoo lim kom tsis txhob khawb.

5. Thaum lub sib tsoo log yog refined nrog ib tug grindstone, qhov chaw sib cuag ntawm lub grindstone thiab lub sib tsoo lub log yuav tsum tsis txhob me heev, thiab cov grindstone siv yuav tsum tsis txhob mos heev, txwv tsis pub nws yuav tsis ua si lub luag hauj lwm ntawm kev sib tsoo lub log. .

Moresuperhard tuaj yeem muab daim iav nto sib tsoo cov kev pabcuam rau kev lag luam sib txawv, tuaj yeem muab cov pob zeb diamond vitrified ob lub disc sib tsoo log, sab hauv pob zeb diamond sib tsoo log, cylindrical pob zeb diamond sib tsoo log, thiab lwm yam.