Mainjiniya wabwino akalamula mbale ya granite pamwamba pa "Giredi 0" kapena "Giredi 00," amagula zambiri kuposa mwala wosalala. Akugula chizindikiro cholembedwa, chotsimikizika, komanso chotsatirika - chomwe kulondola kwake kumathandizira muyeso uliwonse wopangidwa motsutsana nacho. Koma kodi mayina a giredi awa amatanthauza chiyani kwenikweni? Kodi kusalala pamlingo wa sub-micron kumayesedwa ndi kutsimikiziridwa bwanji? Ndipo nchifukwa chiyani miyezo yoperekedwa ndi komiti ya DIN ya ku Germany, American Society of Mechanical Engineers, JIS ya ku Japan, British Standards Institution, ndi mabungwe ena adziko amasiyana m'mafotokozedwe awo - ngakhale onse akuyesera kufotokoza katundu wofanana?
Izi si mafunso a maphunziro okha. Kwa mainjiniya ogula zinthu posankha mbale yopangira malo oyezera, wopanga zida zomwe akufotokoza tebulo la CMM datum, kapena woyang'anira khalidwe yemwe akuyang'anira wogulitsa, kumvetsetsa zomwe zili kumbuyo kwa zizindikiro za satifiketi ndikofunikira. Kulemba giredi popanda kumvetsetsa tanthauzo lake, momwe adayezera, komanso muyezo womwe umagwiritsidwa ntchito si chitsimikizo cha khalidwe - ndi chizindikiro.
Kodi "Flatness" Imatanthauza Chiyani Mu Precision Metrology?
Kusalala, potengera ma plates olondola pamwamba, kuli ndi tanthauzo laukadaulo lomwe limasiyana ndi kagwiritsidwe ntchito ka mawu. Malo osalala amatanthauzidwa ngati osalala ngati mfundo zonse pamwamba pake zili mkati mwa magawo awiri ofanana olekanitsidwa ndi kulekerera kwa kusalala komwe kwatchulidwa.
Tanthauzo ili lili ndi tanthauzo lofunika. Choyamba, ndi kufotokozera kwapadziko lonse lapansi - kumagwira ntchito pamwamba ponse, osati malo osankhidwa okha. Mbale ya pamwamba yomwe ili yathyathyathya bwino pakati koma yokhota pang'ono m'mphepete imalephera kufotokozera kwathyathyathya padziko lonse lapansi, ngakhale dera lililonse lapafupi likuwoneka lathyathyathya likayang'aniridwa ndi chizindikiro chachifupi choyesera. Chachiwiri, mtengo wololera umatchula m'lifupi mwa dera pakati pa mizere iwiri yolowera, osati kusiyana kuchokera ku gawo lodziwika. Chachitatu, njira yoyezera yomwe imagwiritsidwa ntchito kutsimikizira kuthyathyathya iyenera kukhala yolondola - kutanthauza kuti zida zoyezera zomwe zimagwiritsidwa ntchito zimakhala ndi ziphaso zoyezera zomwe zimagwirizanitsa kulondola kwawo kudzera mu unyolo wosasweka ndi muyezo woyamba wadziko lonse kapena wapadziko lonse lapansi.
Pa mulingo wolondola wofunikira pa ma plates a pamwamba a grade 00 (nthawi zina amatchedwa grade ya laboratory), ma tolerances amagwera pamlingo wa 1-3 micrometer pamwamba pa malo ogwirira ntchito. Kukwaniritsa miyeso pa mulingo uwu wolondola kumafuna laser interferometry, electronic autocollimators, kapena milingo yolondola yamagetsi - ma dial gauges achikhalidwe kapena zizindikiro zoyesera sizingathe kuthetsa ma tolerances awa modalirika.
Miyezo Yaikulu Yapadziko Lonse ya Granite Surface Plates
DIN 876 (Germany)
Bungwe la German Institute for Standardization (Deutsches Institut für Normung) linasindikiza DIN 876 ngati mfundo zoyendetsera mapepala olondola pamwamba omwe amagwiritsidwa ntchito poyesa ndi kuyeza. Muyezo uwu umafotokoza magiredi anayi olondola:
- Giredi 3 (Giredi ya Msonkhano): Giredi yolondola kwambiri, yogwiritsidwa ntchito pa msonkhano wamba pomwe kulondola pang'ono ndikokwanira.
- Giredi 2 (Giredi ya Msonkhano): Kulondola kwapakati pakuwunika ndi kukonza malo ogwirira ntchito.
- Giredi 1 (Giredi Yoyendera): Kulondola kwambiri koyenera ku ma laboratories owongolera khalidwe ndi kuwunika.
- Giredi 0 (Giredi Yolondola): Kulondola kwambiri pa ntchito yoyesa molondola komanso yowunikira.
- Giredi 00 (Giredi Yofotokozera): Giredi yapamwamba kwambiri, yosungidwa ku ma laboratories oyesera, zipinda zoyezera, ndi ntchito komwe mbale yapamwamba imagwiritsidwa ntchito ngati chiyerekezo chachikulu choyezera.
DIN 876 imatchula kulekerera kwa kusalala ngati momwe zimakhalira ndi miyeso yodziwika bwino ya mbaleyo, ndipo kulekerera kumangika kwa mbale zazikulu (popeza kusunga kusalala kofanana pamalo akuluakulu ndikofunikira kwambiri). Imatchulanso zofunikira pa kumalizidwa kwa pamwamba, mtundu wa m'mphepete, zinthu (granite iyenera kukwaniritsa zofunikira zinazake za kuuma ndi kuuma), komanso momwe chilengedwe chiyenera kuyezedwera.
DIN 876 imagwiritsidwa ntchito kwambiri m'makampani onse aku Europe ndipo imavomerezedwanso ngati muyezo wofunikira m'misika yambiri yosakhala ya ku Europe. Ogulitsa ambiri apadziko lonse lapansi a zida zolondola amatchula magiredi a DIN 876 akamafotokoza zofunikira pa mbale ya pamwamba pa zida zawo.
ASME B89.3.7 (United States)
Muyezo wa American Society of Mechanical Engineers B89.3.7 ndiye muyezo waukulu waku US wa granite surface plates. Umafotokoza magulu atatu:
- Laboratory ya Giredi: Kulondola kwambiri, kofanana ndi pafupifupi DIN Giredi 00.
- Kuyang'anira Giredi: Kulondola kwapakati, pafupifupi kofanana ndi DIN Giredi 0–1.
- Chipinda cha Zida Zapamwamba: Kulondola kochepa pakugwiritsa ntchito kuyang'anira pansi pakupanga.
ASME B89.3.7 imasiyana ndi DIN 876 m'njira zingapo. Imagwiritsa ntchito njira ya "kuwerenga mobwerezabwereza" poyesa kusalala - pomwe mulingo wamagetsi kapena autocollimator imadutsa pamwamba pa mzere winawake, ndipo kuwerengako kumakonzedwa mwa masamu kuti ikonzenso mawonekedwe a pamwamba. Muyezowu umatchula njira yeniyeni yoyendera ndi njira yogwiritsira ntchito deta, zomwe zimapangitsa kuti miyeso molingana ndi ASME B89 ibwerezedwenso pakati pa ma laboratories osiyanasiyana ndi machitidwe oyezera.
ASME B89.3.7 imalankhulanso momveka bwino za kusatsimikizika kwa muyeso, zomwe zimafuna kuti kusatsimikizika kwa muyeso wa flatness kuwonetsedwe kuti ndi gawo laling'ono mokwanira la kulekerera komwe kukutsimikiziridwa. Chofunikira ichi chimaletsa cholakwika chofala chogwiritsa ntchito zida zoyezera zomwe sizolondola kwenikweni kuti zitsimikizire bwino zomwe zikuwunikidwa.
JIS B 7513 (Japan)
Muyezo wa Zamalonda waku Japan JIS B 7513 ukutsatira akapangidwe ka giredi(Giredi 0, Giredi 1, Giredi 2, Giredi 3) yokhala ndi kulekerera kwa flatness komwe kumafanana kwambiri ndi DIN 876 system. Mafakitale aku Japan amaika patsogolo kwambiri pa kubwerezabwereza kwa kuyeza ndi ziyeneretso za ogwira ntchito yoyezera, zomwe zikuwonetsa chikhalidwe cha opanga pomwe kusinthasintha kwa njira ndi luso la anthu zonse zimaonedwa ngati zinthu zofunika kwambiri.
JIS B 7513 imatchulidwa kwambiri ndi opanga zida aku Japan kuphatikiza THK, HIWIN, NSK, ndi Mitutoyo — makampani omwe malangizo awo olunjika, mabearing olondola, ndi zida zoyezera zimagawidwa padziko lonse lapansi. Opanga zida omwe amagwira ntchito ndi zigawo kuchokera kwa ogulitsa aku Japan nthawi zambiri amakumana ndi zofunikira za JIS B 7513 surface plate muzolemba zosonkhanitsira ndi kuwerengera.
BS 817 (United Kingdom)
British Standard BS 817 idasindikizidwa ndi British Standards Institution ndipo imayang'anira ma plate ndi matebulo pamwamba pa nthaka kuti agwiritsidwe ntchito paukadaulo. Monga DIN 876, imafotokoza ma grade angapo ndipo imafotokoza kulekerera kwa flatness ndi zofunikira pazinthu. BS 817 imatchulidwa m'malo opanga ndege ndi chitetezo ku UK komanso m'maiko omwe ali ndi ubale wolimba ndi miyezo ya Britain.
GOST 10905 (Russia)
Muyezo wa boma la Russia wa GOST 10905 umatchula miyala ya granite ndi chitsulo chopangidwa ndi chitsulo kuti igwiritsidwe ntchito poyesa ndi kuyang'anira zinthu zonse. Ndiwo maziko ofunikira kwambiri m'makampani aku Russia komanso m'magawo aukadaulo m'maiko omwe kale anali kugwiritsa ntchito miyezo ya mafakitale ya nthawi ya Soviet. Kwa ogulitsa omwe amagwira ntchito ndi makasitomala aku Russia kapena Eastern Europe, satifiketi ya GOST ikhoza kukhala chofunikira chovomerezeka chogula.
GB/T 4167 (China)
Muyezo wa dziko lonse wa GB/T 4167 wa ku China umatchula mbale ndi matebulo pamwamba pa nthaka kuti zigwiritsidwe ntchito poyezera zinthu. Kapangidwe ka magiredi ndi kuchuluka kwa zinthu zomwe zimalolera zinthu zimagwirizana kwambiri ndi miyezo yayikulu yapadziko lonse lapansi, zomwe zikusonyeza kuti China ikugwirizana ndi unyolo wopanga zinthu padziko lonse lapansi.
Momwe Kusalala Kumayezedwera Kwenikweni: Njira Yogwirira Ntchito
Kutchula giredi yosalala ndi chinthu china; kutsimikizira kudzera mu muyeso weniweni ndi chinthu china. Njira zingapo zoyezera zimagwiritsidwa ntchito pochita, iliyonse ili ndi luso ndi zofooka zosiyana.
Njira ya Gridi ya Pamlingo wa Elektroniki
Njira yodziwika bwino yotsimikizira kuti pamwamba pa plate pali kusalala pakupanga imagwiritsa ntchito mulingo wamagetsi wolondola kwambiri (monga womwe unapangidwa ndi WYLER waku Switzerland kapena Mahr waku Germany) womwe unadutsa pamwamba pa gridi. Kuwerenga kumatengedwa pazigawo zodziwika bwino pamzere wodutsa pamwamba mbali zonse ziwiri, komanso motsatira ma diagonal. Deta yomwe imachokera imakonzedwa mwa masamu - pogwiritsa ntchito njira monga least-squares plane fitting - kuti adziwe malo ocheperako omwe ali ndi malo onse pamwamba.
Njirayi ndi yothandiza, yachangu, ndipo imatha kuchitidwa ndi zida zomwe zimatsata miyezo ya dziko kudzera mu unyolo wowoneka bwino wa calibration. Ma level amagetsi okhala ndi ma resolution a 0.1 arcsecond (ofanana ndi pafupifupi 0.05 μm/m sensitivity) amatha kuthetsa kusiyana kwa flatness pamlingo wa sub-micron. Iyi ndi njira yokhazikika yomwe yatchulidwa mu ASME B89.3.7 ndipo imavomerezedwa kwambiri pansi pa miyezo ina yambiri ya dziko.
Laser Interferometry
Pa ntchito zolondola kwambiri — ma plate a labotale ndi malo olondola omwe amagwiritsidwa ntchito mu semiconductor kapena zida zowunikira — laser interferometry imapereka muyeso wolondola kwambiri wa flatness. Laser interferometer imapanga kuwala kogwirizana kwambiri pamwamba pomwe pakuyezedwa. Kusiyana kwa kutalika kwa pamwamba kumapanga kusiyana kwa njira ndi kutalika kwa denga lomwe limawonetsedwa lomwe limapanga malekezero osokoneza, omwe amatha kusanthulidwa kuti akonzenso mapu atsatanetsatane a kutalika kwa pamwamba ponse.
Ma laser interferometer amakono omwe amagwiritsidwa ntchito mu kuwerengera kolondola — monga omwe amapangidwa ndi Renishaw (UK) — amatha kukwaniritsa kusatsimikizika kwa muyeso pansi pa nanometers 100. Kuthekera kumeneku ndikofunikira potsimikizira kusalala kwa malo omwe amagwiritsidwa ntchito ngati zinthu zofotokozera mu zida za semiconductor lithography, komwe kusatsimikizika kwa muyeso kuyenera kukhala kochepa mokwanira kotero kuti sikuthandiza kwambiri pa bajeti yonse yolakwika ya dongosololi.
Njira Yodzipangira Yokha
Autocollimator imawonetsa kuwala pa galasi lomwe lili pamwamba pa galasi lomwe likuyesedwa, ndipo imazindikira momwe galasilo lilili (ndipo motero malo otsetsereka a pamwamba) pofufuza kuwala komwe kumabwera. Mwa kudutsa galasi lomwe lili pamwamba pa galasi motsatira dongosolo ndikuphatikiza mawerengedwe otsetsereka, mawonekedwe a kutalika kwa pamwamba amatha kumangidwanso. Autocollimators okhala ndi resolution ya 0.01 arc seconds amapereka njira ina yothandiza m'malo mwa interferometry poyesa kusalala pamwamba pa malo akuluakulu.
Malo Oyezera: Chifukwa Chake Zinthu Zolamulidwa Ndi Zofunika
Chimodzi mwa zinthu zomwe anthu ambiri samaziganizira kwambiri pankhani yoyezera kusalala kwa plate pamwamba ndi kulamulira chilengedwe komwe kumafunika kuti mupeze zotsatira zoyenera. Granite surface plate si block yolimba yopanda kanthu — ndi makina otentha omwe amayankha kutentha komwe kumachokera kuzungulira malo ake, kukhudzana ndi zinthu zina, komanso kutentha kwa thupi la munthu amene akuyesa.
Mbale ya granite ya mita imodzi yokhala ndi CTE ya 7 × 10⁻⁶ /°C idzakula ndi ma micrometer 7 kutalika kwa kutentha kulikonse kwa 1°C. Ngati gawo limodzi la mbaleyo lili lotentha ndi 0.5°C kuposa lina — mwachitsanzo, chifukwa mbali imodzi ili pafupi ndi mpweya wotulutsira mpweya wa HVAC — kutentha komwe kumachitika kudzasokoneza pamwamba ndi ma micrometer angapo, kuphimba kapena kutsanzira zolakwika zenizeni za geometric.
Ma laboratories olondola kwambiri a metrology amathetsa vutoli mwa kulamulira chilengedwe mozama:
- Kutentha kokhazikika kufika pa ±0.1°C kapena kupitirira apo mozungulira mtengo woyerekeza wa 20°C (kutentha koyerekeza kwapadziko lonse kwa muyeso wa miyeso pa ISO 1)
- Chinyezi chimayendetsedwa kuti chisayamwitse kapena kusuntha madzi kuchokera pamwamba pa granite
- Kudzipatula kwa kugwedezeka kuti kugwedezeke kwa pansi kusalumikizane ndi dongosolo loyezera
- Kuletsa kukhudzana mwachindunji pakati pa mbale ya pamwamba ndi chinthu chilichonse chomwe sichili pa kutentha kofanana ndi chipindacho
Muyezo wa ASME B89.6.2 umayang'ana makamaka momwe chilengedwe chilili kuti chiyeze molondola ndipo uyenera kuwonedwa pamodzi ndi B89.3.7 pokonza malo oyezera.
Ma ngalande oletsa kugwedezeka ozungulira malo oyezera - odzazidwa ndi zinthu zoyenera zochepetsera kugwedezeka ndipo opangidwa kuti alepheretse kufalikira kwa kugwedezeka koyendetsedwa ndi nthaka - amatetezanso malo oyezera. Malo omwe amayezera kwambiri amatchulanso ma crane oyenda chete pamwamba omwe satumiza mphamvu zamagetsi ku kapangidwe ka pansi akamagwira ntchito.
Kutsata Kulondola: Unyolo Womwe Umatsimikizira Chilichonse
Chitsimikizo cha mbale ya pamwamba chimakhala ndi tanthauzo lofanana ndi unyolo woyezera womwe uli kumbuyo kwa zida zomwe zimagwiritsidwa ntchito poyesa. Lingaliro ili - kutsata - ndilofunikira kwambiri pa metrology yamakono ndipo lalembedwa mu miyezo yapadziko lonse lapansi monga ISO/IEC 17025, yomwe imayang'anira luso la mayeso ndi ma labotale oyezera.
Kutsata bwino kumagwira ntchito motere: chipangizo chamagetsi kapena laser interferometer chomwe chimagwiritsidwa ntchito poyesa mbale ya pamwamba chiyenera kuti chinayesedwa motsutsana ndi muyezo wofotokozera womwe uli wolondola kwambiri kuposa chipangizocho. Muyezo wofotokozerawo uyeneranso kukhala utayesedwa motsutsana ndi muyezo wolondola kwambiri - ndi zina zotero, kudzera mu unyolo womwe umathera pa muyezo woyesera woyamba womwe umasungidwa ndi bungwe la dziko lonse la metrology (NMI), monga PTB ku Germany, NIST ku United States, NPL ku UK, kapena NIM ku China.
Chingwe chilichonse mu unyolo uwu chimalembedwa ndi satifiketi yoyezera yomwe imafotokoza zomwe zinayesedwa, zotsatira zake, kusatsimikizika kwa muyeso, ndi muyezo wofotokozera womwe unagwiritsidwa ntchito. Unyolo wonse wotsatira umalola zotsatira zilizonse zoyezera - kuphatikizapo chitsimikizo cha flatness cha pamwamba pa mbale - kulumikizidwa, kudzera mu umboni wolembedwa, ku miyezo yoyambirira ya thupi yomwe imafotokoza mita ndi mayunitsi ena a SI.
Kwa ogula zigawo za granite zolondola ndi mapepala apamwamba, kutsimikizira unyolo wotsatirawu si mwambo wa boma — ndi kutsimikizira kwaukadaulo kuti chizindikiro cha giredi pa chikalata chotsimikizira chikugwirizana ndi katundu weniweni, woyezeka wa gawolo, wotsimikiziridwa ndi zida zomwe kulondola kwake kumatsimikiziridwa.
Zotsatira Zothandiza kwa Opanga Zipangizo ndi Mainjiniya Ogula Zinthu
Kumvetsetsa miyezo ya flatness kumakhudza mwachindunji anthu omwe amafotokoza zigawo za granite molondola:
Gwirizanitsani giredi ndi ntchito. Chidebe cha pamwamba cha giredi 0 ndi chokwanira kwambiri pa ntchito zambiri zowunikira kupanga. Kutchula giredi 00 pa ntchito yomwe sikufuna kulondola koteroko kumawonjezera ndalama popanda kuwonjezera luso loyezera. Mosiyana ndi zimenezi, kufotokoza giredi 1 pa tebulo la CMM datum mu labotale yoyezera molondola kumapanga cholakwika choyezera mwadongosolo chomwe chidzathetsa ntchito yonse yochitidwa pa makinawo.
Fotokozani muyezo momveka bwino. "Mbale ya granite pamwamba pa Giredi 0" ndi mfundo yosakwanira ngati muyezo woyenera sunatchulidwe. Kuyang'anira Giredi DIN 876 Giredi 0 ndi ASME B89 kumakhala ndi zolekerera zofanana koma zosafanana. Pa maunyolo apadziko lonse lapansi, nthawi zonse tchulani muyezo wadziko lonse kapena wapadziko lonse womwe umalamulira chizindikiro cha giredi.
Pamafunika zikalata zonse zoyezera. Satifiketi iyenera kuzindikira njira yoyezera yomwe yagwiritsidwa ntchito, momwe chilengedwe chilili panthawi yoyezera, chida chomwe chagwiritsidwa ntchito ndi nambala yake ya satifiketi yoyezera, komanso mtengo wowerengeka wa kusalala ndi kusatsimikizika kwa muyeso. Satifiketi yomwe imangonena kuti "imakwaniritsa Giredi 0" popanda chidziwitso chothandizira ichi sichisonyeza kuti ikutsatira.
Ganizirani nthawi yoyezera. Ma granite pamwamba pa miyala sakhazikika nthawi zonse - amatha kuwonongeka m'malo omwe amagwiritsidwa ntchito kwambiri, ndipo kusalala kwawo kuyenera kutsimikiziridwanso nthawi ndi nthawi. ASME B89.3.7 imapereka malangizo pa nthawi yoyezeranso kutengera kuchuluka kwa kugwiritsidwa ntchito komanso kufunika kwa miyeso yomwe yachitika.
Mapeto: Miyezo ngati Maziko a Kudalirana
Miyezo yosalala ya ma granite pamwamba pa mbale zolondola ndi njira yodalirika - chilankhulo chogwirizana chomwe chimalola wogula ku Singapore ndi wopanga ku Germany (kapena China) kugwirizana pa tanthauzo lenileni la mfundo, momwe idatsimikizidwira, komanso kusatsimikizika komwe kumabwera nako. Kumvetsetsa chilankhulochi - magiredi, miyezo, njira zoyezera, ndi unyolo wotsatirira - ndi zomwe zimasintha chisankho chogula kuchokera pa kulumpha kwa chikhulupiriro kukhala chigamulo chaukadaulo chothandizidwa ndi umboni wolembedwa.
Pa ntchito zomwe kulondola kwa muyeso kumatsimikiza mtundu wa chinthu, maziko awa si osankha. Ndi zomangamanga zosaoneka zomwe kupanga molondola kumakhazikika.
Nthawi yotumizira: Juni-26-2026