Kev siv thiab xoom calibration txoj kev ntawm qib ntsuas
1, Qhov laj thawj rau xoom txoj hauj lwm yuam kev ntawm qib ntsuas:
Yam xws li kev thauj mus los, kev tso kawm, kev vibration, kub, hnav, thiab kev laus nplaum tuaj yeem ua rau tsis raug xoom txoj haujlwm ntawm qib. Yog li ntawd, qhov tseeb ntawm xoom txoj hauj lwm qhia qhov yuam kev ntawm qib yuav tsum tau kuaj xyuas ua ntej siv. Thaum lub sij hawm calibration txheej txheem nyob rau hauv lub chaw soj nstuam, qhov tseeb ntawm xoom txoj hauj lwm kuj raug soj ntsuam ua ntej mus ua hauj lwm calibration tom ntej.
2, Zero calibration txoj kev rau qib ntsuas
Muaj ob txoj hauv kev rau xoom calibration ntawm lub thawv thiab bar qib twj paj nruag: ib qho yog los xyuas qhov tseeb ntawm xoom yuam kev ntawm ib lub phaj kab rov tav (los yog tshuab cuab yeej qhia kev tsheb nqaj hlau); Qhov thib ob yog txhawm rau ntsuas qhov xoom txoj haujlwm yuam kev raws li JJF1084-2002 (Calibration Specification for Frame Level and Bar Level). Tam sim no nws tau piav raws li hauv qab no:
1. Txheeb xyuas qhov tseeb ntawm xoom txoj hauj lwm yuam kev ntawm ib lub phaj kab rov tav (lossis tshuab cuab yeej qhia kev tsheb nqaj hlau).
Tom qab cov npuas stabilizes, nyeem ntawm ib kawg (xws li sab laug kawg) thiab muab tso rau xoom. Tig rau theem dua 180 degrees., Yog tias nws tseem muab tso rau hauv qhov chaw qub ntawm lub phaj tiaj tus, nws yog qhov pom zoo kom muab qhov chaw thaiv. Tom qab cov npuas stabilizes, yog tias nws tseem nyeem (Ib daim phiaj) ntawm qhov qub kawg (sab laug kawg), qhov xoom txoj hauj lwm qhia qhov yuam kev ntawm qib yog 1/2A daim phiaj, uas yuav tsum tau ua raws li cov kev cai ntawm Table 1.
2. Raws li JJF1084-2002, ua xoom txoj hauj lwm yuam kev calibration ntawm qib xoom txoj hauj lwm calibrator.
JJF1084-2002 qhia txog xoom txoj haujlwm yuam kev calibration raws li tsib qhov chaw ua haujlwm sib txawv
Qhia qhov tsis ua haujlwm xoom raws li qhov chaw ua haujlwm.
Ua ntej ntsuas, tso cov qib calibrated (uas tau polished thiab ntxuav) ntawm lub workbench ntawm qib xoom calibration ntaus ntawv, ze rau qhov chaw thaiv. Tom qab npuas stabilizes, tso ob peb o ntawm ib kawg ntawm npuas .; Tom qab ntawd tig rau qib mus rau 180o thiab muab tso rau hauv nws qhov chaw qub. Sau qhov kev nyeem ntawv ntawm ib sab ntawm thawj qhov kev nyeem ntawv thiab kev nyeem ntawv ntawm qhov kawg ntawm lub npuas. Qhov sib txawv ntawm ib nrab ntawm ob qhov kev nyeem ntawv yog qhov tsis ua haujlwm xoom. Raws li cov cai ntawm Table 1, txiav txim siab seb nws puas tsim nyog lossis tsis tau. Yog hais tias qhov xoom txoj hauj lwm yuam kev ntau tshaj qhov tso cai nyob rau hauv Table 1, nws yog tsim nyog los kho qhov xoom txoj hauj lwm hloov mechanism ntawm theem (hloov ntsia hlau los yog txiv ntseej) kom txo qhov xoom txoj hauj lwm yuam kev nyob rau hauv lub tso cai ntau yam. Tsis txhob arbitrarily zawm screws thiab txiv ntseej uas tsis tswj rau kev hloov. Ua ntej calibration thiab hloov kho, qhov chaw ua hauj lwm ntawm theem thiab lub rooj calibration ntawm lub phaj tiaj yuav tsum tau muab ntxuav kom huv.
3, Txoj kev kho qhov Zero Position yuam kev ntawm ib theem ntsuas
Kev hloov kho xoom ntawm qib yog kwv yees nyob rau hauv ob pawg hauv qab no raws li tus lej thiab qhov chaw ntawm cov khoom siv xoom hloov kho:
1. Ib sab adjustable
There are two fixing screws on both sides, one end serves as a fixing device, and the other end serves as an adjustment mechanism. A special wrench or screwdriver can be used to adjust the zero position error of the working surface on the flat plate. First, remove the cover of the adjustment mechanism, and the two adjustment fastening screws can be seen. Place the level gauge on the flat plate tightly against the positioning block. After the bubble stabilizes, read n ^ at the left end (A-end) of the bubble, and then rotate the level gauge 180 degrees., Accurately place it in its original position. Record the reading 0n on one side of the first reading on the other end (B-end) of the bubble. If>, ces B kawg siab. Siv tus ciaj ntswj los kho lub hau ntswj kom lub npuas txav 1/2 (aB ib qho notch) mus rau qhov kawg. Tom qab sawv ntsug rau ib nrab ib teev, rov sim dua thiab kho raws li tib txoj kev. Tom qab xoom txoj hauj lwm yuam kev ua tau raws li qhov yuav tsum tau ua, nws yog ib qho tsim nyog yuav tsum tau siv cov kev hloov kho kom zoo dua qub kom ceev cov ntsia hlau. Tom qab qhov kawg xoom txoj hauj lwm yuam kev ua tau raws li qhov yuav tsum tau ua ntawm JJF1084-2002, nws tau muab tso rau ntawm lub phaj tiaj tus rau 4 teev thiab ntsuas dua los txiav txim seb nws puas tsim nyog. Qee lub sij hawm, tej zaum yuav muaj cov xwm txheej uas qhov kev sib txawv tseem tsis txaus ntseeg, feem ntau nyob rau hauv 2 qhov sib faib ntawm cov iav raj nplai. Txoj kev siv nyob rau hauv cov ntaub ntawv no tsis yog yuav tsum tau tsiv mus nyob rau yav tas los hloov ntsia hlau, tab sis yuav tsum tau siv ib tug ntswj ntsia hlau rau me ntsis tig lub ntsia hlau ntawm lub zoo kho mechanism (saib daim duab 3). Cia nws sawv ntsug rau lwm 4 teev thiab ntsuas dua kom txog thaum nws tsim nyog. Ib theem ruaj khov yam tsis muaj kev hloov kho tuaj yeem hloov kho los ntawm kev sib tsoo qhov ntsuas qhov chaw lossis hloov cov npuas thaum lub xoom txoj haujlwm tsis raug. Tsuas yog txwv rau qib ntsuas lossis cov thawj coj uas muaj qhov tseem ceeb ntawm kev kawm tiav siab thiab tsis muaj qhov tseeb.
