Hauv engineering, nws ib txwm yog cov tshuab uas yog tus phab ej - cov neeg hlau tshuab ua kom zoo siab rau peb txhua tus nrog kev ua haujlwm siab thiab nrawm nrawm.
Thaum twg peb siv sijhawm los ua kom txaus siab rau cov ntaub ntawv yooj yim uas tseem nyob thoob plaws hauv kev txhim kho niaj hnub no? Peb tuaj yeem xav tias, raws li cov tshuab thiab cov cuab yeej ua ntej, tias muaj me ntsis yuav tsum tau kawm los ntawm yav dhau los.
Tam sim no, peb yuav tsum txaus siab rau lub cuab yeej uas tau sawv qhov kev sim ntawm lub sijhawm thiab qhia peb txog qhov tseem ceeb ntawm qhov tseeb hauv engineering - lub phaj saum npoo.
Surface Plate yog dab tsi?
Lub phaj nto tseem hu ua qhov tseeb dav hlau nto. Nws yog ib qho qauv ntawm cov khoom siv uas tso cai rau kev ntsuas qhov tseeb ntawm engineering.
Txhawm rau kom ntseeg tau tias tag nrho cov khoom siv tshuab ua tau zoo ib yam, qhov ntev yuav tsum tau kuaj xyuas thiab txheeb xyuas. Raws li qhov sib txawv tsuas yog qhov yuav tsum tau ntsuas, lub phaj saum npoo yog qhov tseem ceeb raws li lub tshuab thiab software siv los sau cov txiaj ntsig.
Ntau qhov chaw sim thiab cov chaw soj nstuam cia siab rau cov phaj saum npoo ua lub hauv paus rau kev ntsuas kom raug. Txhua qhov kev ntsuas linear tso siab rau qhov tseeb ntawm kev siv thaum qhov kawg qhov ntev raug kaw.
Cov phaj saum npoo muaj nyob rau hauv ntau yam ntawm cov tshuab ntsuas thiab suav tias yog lub hauv paus txhim khu kev qha tshaj plaws rau qhov ntsuas qhov siab.
Keeb kwm cam khwb cia hlau yog cov khoom siv rau kev tsim cov phaj saum npoo, tab sis granite yog tam sim no kuj yog ib qho khoom siv. Cov phaj saum npoo yog tsim los rau ntau qhov ntau thiab tsawg. Nyob ntawm qhov raug qhov yuav tsum tau muaj, cov qib sib txawv kuj muaj.
Txhawm rau ua raws li BS 817 (2008), cov phaj saum npoo muaj plaub qib sib txawv:
Qib 0 yog rau qhov chaw kuaj mob uas yuav tsum tau muaj qib siab ntawm qhov raug los tshuaj xyuas cov khoom ntiag tug.
Cov phaj saum npoo qib 1 yuav raug siv rau kev kuaj xyuas dav dav.
Qib 2 feem ntau yog siv rau hauv kev cob qhia uas tsis tas yuav tsum muaj kev zam txim nruj.
Qib 3 daim hlau yog qhov tsawg tshaj plaws thiab feem ntau tsis siv rau kev ntsuas engineering.
Surface Phaj Calibration thiab Kho
Txhawm rau kom cov phaj saum npoo ua tau raws li BS 817 (2008), cov phaj tshiab thiab rov ua dua tshiab yuav tsum tau kuaj xyuas thiab ntsuas raws li qhov tsis tu ncua, teem caij.
BS 817 (2008) tau tsim los ua ib qho kev qhia tshwj xeeb rau kev tsim kho thiab kev tsim qauv ntawm ob qho tib si cam khwb cia hlau thiab granite nto phaj.
Cov phaj saum npoo ua los ntawm cov hlau cam khwb cia lossis granite yog tsim los ua kom tawv tawv heev, tab sis dhau sijhawm, kev puas tsuaj tseem tuaj yeem tshwm sim. Raws li ib qho chaw tiaj tus, nws yog ib qho uas lawv siv tsis raug raws li lub rooj lossis lub rooj zaum!
Vim tias cov phaj saum npoo yog qhov ruaj khov, nws tuaj yeem ua yuam kev los xav tias kev puas tsuaj tsis tuaj yeem ua tau. Nyob rau tib lub sijhawm, rov siv dua rau cov haujlwm rov ua dua tuaj yeem hnav qee ntu ntau dua li lwm tus.
Thaum siv, ntau qhov chaw ntawm daim hlau yuav tsum tau siv yog tias ua tau. Qhov no zam qhov kev pheej hmoo ntawm qee thaj tsam ntawm lub phaj tau hnav tawm ntau dua li lwm tus. Txhawm rau txheeb xyuas qhov tsis zoo, kev txiav, lossis pob, lub phaj saum npoo yuav tsum raug kuaj pom tom qab siv txhua zaus.
Raws li cov phaj saum npoo feem ntau tsis saib xyuas raws li cov cuab yeej thiab tsis suav tias yog ib feem ntawm cov tshuab, nws tuaj yeem hnov qab thaum yuav tsum tau saib xyuas thiab tu.
Plua plav, av, thiab roj los ntawm cov khoom raug ntsuas lossis thaj chaw ib puag ncig tuaj yeem tsaws rau saum npoo, ua rau muaj kev puas tsuaj thiab cuam tshuam rau cov txiaj ntsig. Kev tu lub phaj saum npoo yuav tsum muaj cov txheej txheem yooj yim thiab kev tshuaj xyuas tsis tu ncua. Thaum tsis siv, lub phaj saum npoo yuav tsum muaj lub hau tiv thaiv ib txwm. Qhov zoo tshaj plaws, tom qab txhua qhov kev siv, cov phaj saum npoo yuav raug ntxuav nrog cov tshuaj ntxuav kom zoo.
Puas yog Surface Phaj yog cov cuab yeej tseem ceeb tshaj plaws hauv Mechanical Engineering?
Kev ntsuas qhov tseeb ntawm qhov chaw yog qhov tseem ceeb rau cov tshuab txhim khu kev qha. Yuav tsum tau calibrated nto phaj nrog rau lwm yam khoom siv ntsuas. Cov khoom siv Metrology plays lub luag haujlwm tseem ceeb hauv kev tsim kho tshuab.
Raws li cov khoom siv tshuab, txhua yam tseem ceeb. Tag nrho cov khoom yuav tsum ua haujlwm zoo ua ke los tsim kom muaj txiaj ntsig zoo. Qhov no yog tib yam rau cov phaj saum npoo.
Cov phaj saum npoo yog ib qho cuab yeej tseem ceeb tab sis tsis muaj ntau tshaj li lwm cov tshuab thiab software siv los xyuas kom meej tias cov khoom tsim tawm yog tus qauv raug.
