Koj lub phaj nto yog dag.
Tsis yog, nws tsis tau txiav txim siab yuam kev rau koj. Tab sis yog tias nws yog hlau cam khwb cia thiab koj tau khiav 5-axis ntawd tag nrho thaum sawv ntxov nrog cov dej txias ntws thoob plaws, muaj feem ntau tias qhov nyeem koj tau txais tsis yog qhov koj xav tias nws yog.
Nov yog qhov tseeb uas tshwm sim: hlau cam khwb cia nqus cov dej noo, ua rau cov dej txias ua rau cov dej txias, thiab pib xeb txij thaum koj tsis ntxiv roj rau nws lawm. Txawm tias nyob hauv cov khw muag khoom qhuav, qhov kub thiab txias ua rau nws nthuav dav thiab cog lus tas li. Muab ib feem precision tso rau ntawm lub phaj ntawd thaum 8 teev sawv ntxov thaum lub khw txias, tom qab ntawd xyuas tib qho thaum 2 teev tsaus ntuj tom qab cov tshuab tau khiav ntau teev - cov lej yuav tsis sib xws. Thiab yog tias koj xav paub vim li cas koj lub CMM tseem ua tsis tau zoo txawm tias zoo li cov xwm txheej zoo sib xws, koj cov chaw siv yuav yog tus neeg ua txhaum ntsiag to.
Cov cuab yeej ntsuas granite tsis muaj qhov teeb meem no.
Tsis yog vim lawv yog khawv koob. Tab sis granite tus coefficient ntawm thermal expansion nyob ib ncig ntawm 4.5 × 10⁻⁶/°C—kwv yees li ib feem peb ntawm cov hlau cam khwb cia. Tshaj li 600mm span, 5°C viav vias qhia txog tej zaum 0.001mm ntawm kev hloov pauv ntawm granite piv rau 0.012mm lossis ntau dua ntawm cov hlau cam khwb cia. Hauv kev ua haujlwm precision qhov twg koj tab tom sib ntaus sib tua rau 0.005mm tolerances, qhov sib txawv ntawm pass thiab scrap.
Muaj ib lub khw uas kuv hnov txog qhov no tau hloov lawv qhov chaw tshuaj xyuas thawj zaug los ntawm hlau cam khwb cia mus rau granite thiab tam sim ntawd pom tias lawv cov khoom seem poob qis - tsis yog vim lawv cov tshuab tau zoo dua, tab sis vim lawv lub tshuab ntsuas thaum kawg qhia qhov tseeb.
Qhov zoo txog granite, thiab qhov no tsis tshua tham txog, yog nws tswj kev puas tsuaj li cas.
Tso ib lub gauge block rau ntawm ib lub phaj hlau cam khwb cia? Tej zaum koj yuav tau ib lub burr uas tsa siab. Qhov kev hloov me me ntawd nyob ntawm qhov chaw, thiab tam sim no txhua daim uas koj kuaj xyuas thaj chaw ntawd ntsuas tsis raug. Tsis muaj lus ceeb toom, tsis muaj cim pom - tsuas yog maj mam sau qhov yuam kev xwb.
Yog koj ntaus tib lub ntsuas ntawm granite? Koj yuav tau ib daim me me. Tej zaum yuav muaj ib lub qhov me me. Tab sis ntawm no yog qhov tseem ceeb - qhov seem ntawm qhov chaw tseem tiaj tus. Koj tuaj yeem siv thaj chaw tsis puas tsuaj nrog kev ntseeg siab tag nrho. Qhov yuam kev yog qhov chaw thiab pom tseeb, tsis zais thiab nthuav dav.
Qhov no tseem ceeb dua li tib neeg xav hauv cov chaw tsim khoom uas cov phaj nto raug siv tsis zoo txhua hnub.
Thermal drift yog qhov tua neeg ntsiag to hauv kev ua haujlwm precision.
Xav txog qhov no: koj tab tom khiav ib txoj haujlwm rau hnub Monday sawv ntxov. Qhov kub ntawm lub khw yog 18°C. Koj tus neeg teeb tsa kuaj xyuas txhua qhov loj me tseem ceeb, txhua yam zoo li zoo, cov khoom siv khiav. Tom qab ntawd hnub Friday tav su los txog, thiab tam sim ntawd tus kws tshaj lij QC tab tom cim cov khoom uas zoo thoob plaws lub lim tiam. Muaj dab tsi hloov pauv? Cov tshuab tsis hloov. Cov neeg ua haujlwm tsis hloov. Tab sis qhov kub thiab txias ib puag ncig tau hloov pauv - tej zaum 4 lossis 5 degrees thaum lub kaw lus HVAC tawm tsam cov xwm txheej hnub so, lossis thaum lub hnub hloov pauv thiab cua sov ib sab ntawm lub tsev.
Cov phaj hlau cam khwb cia yuav nthuav dav thiab sib cog lus nrog cov viav vias no. Granite yuav tsis.
Qhov no yog vim li cas cov chaw kuaj mob siab heev tau siv granite tsuas yog rau ntau xyoo lawm. Nws tsis yog kev lig kev cai - nws yog tias granite muab rau koj qhov kev siv uas tsis hloov pauv nrog ib puag ncig.
Muaj ib qho ntxiv uas tsis tau saib xyuas: kev co damping.
Cov chaw ua haujlwm niaj hnub no co. Cov spindles ntawm 15,000 RPM, kev sib hloov ceev ceev, cov khoom siv hydraulic - txhua yam tsim cov zog tshuab uas xa mus rau hauv lub txaj tshuab, los ntawm hauv pem teb, mus rau hauv koj qhov kev ntsuas. Ntawm qhov chaw hlau cam khwb cia, cov kev co ntawd tseem nyob. Koj lub koob qhia lub dial co. Koj cov kev nyeem digital hloov pauv. Koj tab tom sim nyeem 0.001mm thaum koj tag nrho cov teeb tsa co.
Pob zeb granite nqus tau lub zog ntawd. Nws cov coefficient damping ntuj khiav li kaum npaug ntau dua li hlau cam khwb cia. Nws zoo li muab koj qhov kev teeb tsa ntsuas rau ntawm lub shock-absorber. Cov lej ruaj khov sai dua, nyeem tau rov ua dua, thiab koj tuaj yeem ntseeg qhov koj pom.
Yog tias koj xav paub txog cov ntawv thov tiag tiag, ntawm no yog qhov koj yuav ntsib nrog:
Cov phaj nto rau kev tshuaj xyuas thiab kev teeb tsa - xyuas qhov tiaj tus, sib luag, thiab plaub fab. Feem ntau cov khw muag khoom xav tau tsawg kawg ib daim phaj siv rau lawv thaj chaw teeb tsa.
Cov duab plaub fab (master squares) rau kev kuaj xyuas koj lub CNC axis perpendicularity. Yog tias koj lub tshuab tsis yog square, txhua qhov koj ua muaj qhov yuam kev ntawd. Kev khiav tri-square check txhua lub lim tiam siv sijhawm tsib feeb thiab ntes cov teeb meem ua ntej lawv dhau los ua teeb meem ntawm ib feem.
Cov V-blocks rau tuav cov khoom cylindrical thaum lub sijhawm tshuaj xyuas. Cov khoom puag ncig nyuaj rau ntsuas tas li - V-blocks daws qhov ntawd.
Cov npoo ncaj rau kev kuaj xyuas txoj kev siv tshuab thiab cov chaw loj uas koj tsis tuaj yeem muab lub phaj tso rau.
Cov khoom sib piv rau kev tsa cov workpieces kom koj tuaj yeem nkag mus rau cov yam ntxwv uas yuav raug zais cia.
Tau txais kev qhia meej txog qib: feem ntau cov kev ua haujlwm precision machining xav tau Qib 00. Qhov ntawd muab rau koj qhov kev kam rau siab tiaj tiaj li ntawm 1.5 micrometers ib 'meter'. Qib 0 yog xoob dua ntawm tej zaum 4 micrometers - zoo rau kev tshuaj xyuas tsis zoo tab sis tsis yog rau kev ua haujlwm nruj. Qib 000 yog cov khoom siv hauv chav kuaj, 0.5 micrometers lossis zoo dua, thiab qhov tseeb overkill tshwj tsis yog tias koj nyob hauv optics lossis aerospace calibration work.
Txoj cai uas kuv siv: koj cov khoom siv siv yuav tsum yog ib lossis ob qib tseeb dua li qhov kam rau siab uas koj tab tom sim tuav. Yog tias koj qhov kev kam rau siab phem tshaj plaws yog ± 0.02 hli, lub phaj Qib 0 (kev kam rau siab nyob ib ncig ntawm 0.004 hli / m) muab rau koj qhov ntug zoo.
Kev saib xyuas yooj yim thiab qhov tseeb, granite zam txim tau.
Khaws nws kom huv si. So nws tom qab siv, tshwj xeeb tshaj yog tias koj tau siv hom kua txiav. Siv cov tshuaj ntxuav granite lossis cov phaj nto kom raug, tsis txhob siv cov tshuaj lom neeg los ntawm cov khw muag khoom. Txhawb cov phaj loj kom raug rau ntawm cov sawv ntsug uas tsim rau lawv - kev txhawb tsis raug ua rau muaj kev cuam tshuam ntawm ntug thiab ua rau koj cov ntawv nyeem tiaj tus puas.
Thov kom lawv rov ua daim ntawv pov thawj dua tsis tu ncua. Rov ua daim ntawv pov thawj dua txhua xyoo rau cov phaj siv ntau, txhua ob peb xyoos rau cov khoom siv tsawg dua. Nws tsis kim, thiab nws muab pov thawj rau koj tias koj cov ntaub ntawv pov thawj tseem zoo.
Nov yog qhov pib ua tau zoo yog tias koj xav hloov pauv:
Txheeb xyuas koj qhov chaw siv los ua qhov tseem ceeb tshaj plaws - qhov uas koj siv rau kev tshuaj xyuas zaum kawg ntawm koj cov khoom uas kam rau siab tshaj plaws. Qhov ntawd yog qhov uas granite ua qhov sib txawv loj tshaj plaws.
Tom qab ntawd saib koj cov txheej txheem tshuaj xyuas. Koj plam lub sijhawm qhov twg los tawm tsam qhov nyeem tsis sib xws? Koj xav tias qhov yuam kev ntsuas qhov twg tab sis tsis tuaj yeem ua pov thawj? Cov no yog koj cov neeg sib tw rau cov cuab yeej granite thib ob thiab thib peb.
Koj tsis tas yuav hloov txhua yam ib zaug. Tab sis kev hloov ib lossis ob lub phaj tseem ceeb yuav qhia koj sai sai seb granite puas tsim nyog rau kev nqis peev hauv koj txoj haujlwm tshwj xeeb.
Feem ntau cov khw uas hloov pauv tsis rov qab mus.
Lub sijhawm tshaj tawm: Tsib Hlis-22-2026