Kodi bajeti yanu ya Metrology yakonzedwa bwino? Kutulutsa Mtengo Weniweni wa Precision Granite Plates

Mu malo ovuta kwambiri opangira zinthu molondola, komwe kutsatira miyezo kumafuna kupambana, kusankha zida zoyezera zoyambira ndikofunikira kwambiri. Mainjiniya, akatswiri owongolera khalidwe, ndi magulu ogula zinthu nthawi zambiri amakumana ndi vuto lalikulu: momwe angapezere kulondola kwakukulu popanda kuwononga ndalama zambiri. Yankho nthawi zambiri limakhala mu luso la chida chowoneka chosavuta—mbale yolondola ya graniteMosiyana ndi kukhala chida chongoyang'ana pansi, chida ichi ndi chizindikiro chenicheni cha zolakwika zonse, ndipo kumvetsetsa kufunika kwake kwamkati ndikofunikira kwambiri pakukonza bwino labu iliyonse yamakono yoyezera zinthu.

Mawu oti "tebulo" nthawi zambiri amatanthauza benchi losavuta logwirira ntchito, koma tebulo la granite lathyathyathya pamwamba limapangidwa kuti likwaniritse zofunikira zolimba zowunikira mozama. Ndi malo ofotokozera, olinganizidwa komanso ovomerezeka malinga ndi miyezo yapadziko lonse lapansi (monga ASME B89.3.7), zomwe zimatsimikizira kuti pali kusiyana kochepa komanso koyezeka kuchokera pa kusalala kwathunthu. Chitsimikizo ichi ndi chomwe chimachikweza kuchokera pamwamba pang'ono kupita ku chida chovomerezeka cha metrology. Njira yopangira mosamala imaphatikizapo akatswiri aluso kwambiri omwe amachita njira yolumikizira ma plate atatu, kuonetsetsa kuti pamwamba pake pasiyana ndi pansi pabwino ndi mainchesi ang'onoang'ono okha, kutengera mtundu wolondola wofunikira.

Ulamuliro Wobadwa nawo wa Granite Metrology

Ubwino wa granite, womwe nthawi zambiri umakhala wakuda kwambiri kapena mwala wolemera ngati quartz, umachokera ku kukhazikika kwake kwa nthaka. Zinthu zachilengedwezi zimapereka ubwino wapadera kuposa chitsulo chachikhalidwe kapena malo a ceramic omwe ndi ofunikira kwambiri pamalo olondola kwambiri. Mosiyana ndi malo achitsulo, granite imakhala ndi hysteresis yochepa, zomwe zikutanthauza kuti imabwerera mwachangu ku mawonekedwe ake oyambirira katundu atachotsedwa, zomwe zimachepetsa kusokonekera kwakanthawi komwe kungakhudze miyeso yovuta. Kuphatikiza apo, Coefficient of Thermal Expansion (CTE) yake yochepa imapereka kutentha kwapadera, kuonetsetsa kuti kusinthasintha pang'ono kwa kutentha m'malo ochitira labotale kumakhudza kwambiri kukula kwa flatness. Kukhazikika kumeneku sikungatheke kukambirana kuti muyese molondola, makamaka mukamagwiritsa ntchito zida zovuta monga ma level amagetsi kapena laser interferometers. Chikhalidwe cha granite chosawononga komanso chosakhala ndi maginito chimapangitsanso kuti malo ogwirira ntchito akhale osavuta, kuchotsa nkhawa za dzimbiri kapena kusokoneza zida zoyezera maginito.

Pamene malo agula mbale yolondola ya granite yovomerezeka, samangogula slab yolemera; akupeza muyezo wodalirika komanso wolondola womwe umalimbitsa muyeso uliwonse womwe umachitika mkati mwa njira yawo yowongolera khalidwe. Kapangidwe ka kristalo ka chipangizocho kamatsimikizira kuti kuwonongeka, komwe kumachitika kwa zaka zambiri pogwiritsa ntchito, kumapangitsa kuti pakhale kung'ambika kwa microscopic m'malo mwa kusintha kwa pulasitiki kapena kupanga ma burrs okwera, zomwe zimasunga umphumphu wa kapangidwe kake kwa nthawi yayitali bwino kwambiri kuposa zinthu zofewa.

Kutanthauzira Mtengo wa Granite Surface Plate Cost Equation

Chimodzi mwa zinthu zazikulu zomwe zimakhudza zisankho zogulira ndi mtengo woyamba wa granite surface plate. Oyang'anira kugula ayenera kuyang'ana kupitirira mtengo wa sticker ndikuwerengera mtengo wonse, womwe umaphatikizapo nthawi yayitali, kukhazikika, komanso mtengo wosunga kulondola kwa chidacho pa moyo wake wonse. Kumvetsetsa zomwe zimayambitsa ndalama kumathandiza kupanga chisankho chodziwa bwino za ndalama.

Mtengo wake umadalira makamaka zinthu zitatu zaukadaulo. Choyamba, kukula kwake ndi kulemera kwake—mapepala akuluakulu amafunika kusamalidwa movutikira panthawi yolumikizirana ndi kupeza zinthu zambiri zopangira. Kachiwiri, giredi yolondola yofunikira—mapepala ovomerezeka ku Giredi yapamwamba kwambiri (AA, kapena giredi ya labotale) amafuna maola ambiri ogwira ntchito kuchokera kwa akatswiri odziwa bwino ntchito za metrology. Ntchito yapaderayi, yotenga nthawi yambiri, ndiyo gawo lofunika kwambiri la kusiyana kwa mitengo pakati pa chipinda cha zida (Giredi B) ndi giredi la labotale lalikulu (Giredi AA). Pomaliza, kuphatikizidwa kwa zinthu zapadera, monga zoyika zitsulo zolumikizidwa kuti zikhazikike pazinthu zapadera, malo osungira T-slots okonzedwa bwino kuti ayang'anire zinthu zovuta, kapena mpumulo wamkati wamkati wochepetsera kulemera pamene akusunga kuuma, zonse zimathandiza pa ndalama zomaliza.

Mwachidule, mbale yolakwika kapena yosakhazikika pamwamba—nthawi zambiri chifukwa chogula chitsanzo chotsika mtengo komanso chosatsimikizika—imabweretsa mwachindunji kupanga zida zosagwirizana. Mtengo wotsatira wa zinyalala, kukonzanso, kubweza kwa makasitomala, komanso kutayika kwa ziphaso zamakampani kumaposa kusiyana kwa mtengo wa mbale yovomerezeka komanso yapamwamba kwambiri ya granite. Chifukwa chake, kuwona ndalama zoyamba ngati inshuwaransi yokhalitsa motsutsana ndi khalidwe loipa komanso kusatsimikizika kwa kukula kumapereka malingaliro oyenera azachuma.

Gome Loyang'anira Granite ngati Chuma Chanzeru

Gome loyang'anira pamwamba pa granite, mosakayikira, ndi mtima wa labotale iliyonse yodalirika yowongolera khalidwe (QC) kapena metrology. Ntchito yake yayikulu ndikupereka nsanja yabwino kwambiri, yopanda kupatuka ya zida zolondola monga kutalika, zizindikiro zoyimbira, zofananira zamagetsi, komanso, chofunika kwambiri, maziko a Makina Oyezera Ogwirizana (CMMs).

Mwachitsanzo, kulondola kwa kuwerenga kosavuta kwa geji yoyezera kutalika kumadalira kwambiri kusalala ndi sikweya kwa mbale ya pamwamba. Ngati ndege yolozera ili ndi bowo laling'ono, losakonzedwa kapena lopindika, cholakwika cha geometric chimasamutsidwa mwachindunji ndikulowetsedwa mu kuwerenga kulikonse komwe kumatsatira, zomwe zimapangitsa kuti muyeso wa systemic ukhale wosiyana. Njira yowunikira yachizolowezi imadalira mbale kuti ipereke ndege yolozera ya zero yofunika, kulola miyeso yodalirika yoyerekeza ndi ma block kapena miyezo ya master gauge. Imagwiranso ntchito ngati malo oyambira datum, reference yolinganiza yomwe zinthu zonse pa workpiece yofunika zimayesedwa. Kuphatikiza apo, mu ntchito zapamwamba, kulemera kwakukulu kwa tebulo la granite flat surface kumagwira ntchito ngati malo okhazikika, oletsa kugwedezeka kwa ma CMM kapena ma laser trackers, kuonetsetsa kuti ngakhale kusokonezeka pang'ono kwachilengedwe kapena makina sikusokoneza miyeso ya sub-micron yomwe ikuchitika.

Kuti mbaleyo isunge umphumphu wake ngati chida chowunikira, iyenera kuthandizidwa moyenera. Choyimilira chaukadaulo, chopangidwa ndi cholinga ndi chinthu chofunikira kwambiri, chopangidwa kuti chigwire mbaleyo pamalo ochepetsera kupsinjika (omwe amadziwika kuti Airy points). Kuyika mbale yolondola kwambiri pa benchi logwirira ntchito losakonzedwa bwino, nthawi yomweyo kumawononga kusalala kwa mbaleyo ndipo kumapangitsa kuti dongosolo lonse la metrology lisadalire. Dongosolo lothandizira ndi njira yowonjezera kulondola kwa mbaleyo.

Kusunga Kudalirika Kosatha Kudzera mu Kukonza

Ngakhale kuti nthawi yayitali ya tebulo la granite pamwamba pake ndi yokhazikika, sikuti imatetezedwa ku zovuta zomwe zimagwiritsidwa ntchito nthawi zonse. Ngakhale zipangizo zolimba kwambiri zimatha kugwiritsidwa ntchito pang'ono komanso m'malo mwake. Kusamalira bwino ndikofunikira komanso kosavuta: pamwamba pake payenera kukhala paukhondo, popanda fumbi losalimba, zinyalala zopukutira, kapena zotsalira zomata zomwe zingasokoneze zida zoyezera. Zotsukira mbale zapamwamba zokha, zomwe sizimawononga, ziyenera kugwiritsidwa ntchito. Chiwopsezo chachikulu pa kuphwanyika kwa mbale chimachokera ku kuphwanyika komwe kumachitika m'malo mwake, ndichifukwa chake akatswiri amalimbikitsidwa kugwiritsa ntchito kutalika konse kwa pamwamba m'malo mongoyang'ana mobwerezabwereza muyeso m'dera limodzi laling'ono.

Komabe, chitetezo chenicheni chokhacho cha ndalama zomwe zayikidwa ndi kuwerengera nthawi ndi nthawi. Njira yobwerezabwerezayi, yomwe iyenera kuganiziridwa mu mtengo wa granite surface plate wa nthawi yayitali, singathe kukambidwanso kuti itsatire miyezo yapadziko lonse lapansi. Pa nthawi yowerengera, katswiri wodziwika bwino wa metrology amagwiritsa ntchito zida zapamwamba, monga milingo yolondola yamagetsi kapena zida za laser, kuti awonetse pamwamba pa nthaka yonse. Amatsimikiza kuti kusalala konse kwa mbaleyo, kubwerezabwereza m'malo osiyanasiyana, komanso kusalala kwa malo ake kumakhalabe kodalirika mkati mwa kulekerera komwe kwatchulidwa pamlingo wake. Njira yobwerezabwereza iyi yotsimikiziranso imatsimikizira kuti mbaleyo imasunga ulamuliro wake ngati muyezo wodalirika woyezera wa malowo, kuteteza mtundu wa chinthu chilichonse chomwe chimapambana mayeso.

Mumsika wapadziko lonse lapansi wopikisana, opanga omwe nthawi zonse amapanga zida zololera amakhala ndi mitengo yotsika ya zinyalala, chitsimikizo chochepa, komanso kukhutitsidwa kwakukulu kwa makasitomala. Ubwino uwu umachokera pakukhala ndi maziko odalirika a metrology. Chisankho chogula mbale yolondola ya granite yotsimikizika ndi chaukadaulo kwambiri, ndipo poyika ndalama mwanzeru patebulo lovomerezeka la granite lowunikira ndikuliphatikiza ndi chithandizo cha akatswiri komanso kuwerengera nthawi zonse, malo amatha kutsimikizira kukhulupirika kwa deta yawo yofanana, kusintha ndalama zoyambira kukhala chuma cholimba, choyambira chaubwino komanso phindu lokhalitsa.