Mu gawo la kupanga zinthu molondola masiku ano, komwe kuleza mtima kukuchepa kwambiri ndipo zofunikira pa khalidwe zikuwonjezeka mosalekeza, makina oyezera zinthu molingana ndi momwe zinthu zilili ndi chimodzi mwa zida zofunika kwambiri pakutsimikizira kulondola kwa magawo. Zipangizo zamakonozi zasintha kwambiri kuwongolera khalidwe mwa kusintha njira zowunikira ndi manja ndi luso loyezera lokha, lolondola kwambiri lomwe lingathe kujambula mawonekedwe a zigawo zovuta za magawo atatu. Kumvetsetsa mitundu yosiyanasiyana ya makina oyezera a CMM omwe alipo komanso zinthu zomwe zimakhudza kulondola kwawo kwakhala chidziwitso chofunikira kwa mainjiniya opanga zinthu, oyang'anira khalidwe, ndi akatswiri ogula zinthu m'mafakitale osiyanasiyana kuyambira ndege ndi magalimoto mpaka zida zamankhwala ndi zamagetsi.
Makina oyezera ma coordinate amagwira ntchito pa mfundo yofunikira yomwe imatsutsana ndi luso lake. Mwa kusuntha makina oyezera m'ma axes atatu ozungulira, omwe nthawi zambiri amatchedwa X, Y, ndi Z mu Cartesian coordinate system, makinawo amazindikira mfundo zosiyana pamwamba pa chinthu. Mzere uliwonse umakhala ndi masensa omwe amayang'anira malo a probe molondola kwambiri, nthawi zambiri amayesedwa mu ma micrometer kapena ngakhale magawo a ma micrometer. Mfundo zomwe zasonkhanitsidwa zimapanga zomwe akatswiri a metrometer amatcha mtambo wa mfundo, makamaka chiwonetsero cha digito cha malo oyezera omwe angayerekezedwe ndi mawonekedwe a kapangidwe, mitundu ya CAD, kapena zofunikira za geometric dimensioning ndi tolerancing.
Kusintha kwa ukadaulo wa CMM kwapanga mapangidwe angapo osiyana a makina, iliyonse yokonzedwa bwino kuti igwirizane ndi ntchito zinazake, kukula kwa magawo, ndi malo ogwirira ntchito. Ma CMM amtundu wa mlatho ndi omwe amagwiritsidwa ntchito kwambiri m'malo opangira zinthu molondola. Makinawa ali ndi kapangidwe kofanana ndi mlatho komwe kumadutsa tebulo loyezera, ndi makina oyezera omwe amapachikidwa kuchokera pamtengo wopingasa wothandizidwa ndi mizati iwiri yoyima. Kapangidwe ka mlatho kamapereka kulimba kwapadera komanso kukhazikika, zomwe zimathandiza kulondola kwa muyeso komwe kumatha kufika pamlingo wa sub-micrometer pansi pa mikhalidwe yolamulidwa. Ma CMM a mlatho amapambana poyesa zigawo zazing'ono mpaka zapakati zomwe zimakhala ndi zolekerera zolimba, zomwe zimapangitsa kuti zikhale zofunikira kwambiri m'mafakitale komwe kulondola ndikofunikira kwambiri.
Ma CMM amtundu wa Gantry amagawana kapangidwe ka mlatho koma amaukulitsa kwambiri kuti athe kuyeza mbali zambiri. M'malo mokhala patebulo, makina a gantry amaikidwa pansi molunjika pamaziko apadera, zomwe zimapangitsa kuti pasakhale kufunikira kokweza zinthu zolemera pamapulatifomu okwera. Kapangidwe kameneka kamakhala koyenera kwambiri pazinthu zoyendera ndege, zomangira zazikulu zamagalimoto, ndi zida zolemera zamafakitale zomwe zingagonjetse makina wamba a mlatho. Ngakhale ma CMM a gantry amasiya zina mwazolondola kwambiri zomwe zingatheke ndi mapangidwe a mlatho, amawonjezera kuchuluka kwakukulu kwa miyeso komwe kumatha kutalika mamita ambiri mu mzere uliwonse.
Ma CMM amtundu wa Cantilever amapereka njira yosiyana yopangira, ndi mutu woyezera womwe umalumikizidwa mbali imodzi yokha ya maziko olimba. Kapangidwe kameneka kamapereka mwayi wotseguka wopita kudera loyezera kuchokera mbali zitatu, zomwe zimapangitsa kuti kutsitsa ndi kutsitsa zinthu zikhale zosavuta. Makina a Cantilever nthawi zambiri amagwiritsa ntchito mapulogalamu okhudzana ndi zigawo zing'onozing'ono pomwe mwayi wopezera wogwiritsa ntchito komanso magwiridwe antchito abwino zimakhala patsogolo kuposa kulondola kwakukulu komwe kungatheke.
Ma CMM opingasa mkono amathetsa mavuto omwe mainjiniya ena amavutika kuwathetsa. Mwa kuyang'ana probe mopingasa m'malo moyima, makinawa amatha kuyang'ana zinthu zazitali komanso zoonda monga mapanelo achitsulo, kapangidwe ka magalimoto, ndi magawo a fuselage a ndege. Mapangidwe a manja opingasa amasinthanitsa kulondola kwina kuti afike mosavuta komanso mosavuta, zomwe zimapangitsa kuti akhale chisankho chabwino kwambiri poyesa ma geometri omwe ndi ovuta kuwapeza pogwiritsa ntchito ma configurations a probe opingasa.
Ma CMM oyezera onyamulika amaimira kusintha kwa njira yoyezera, zomwe zimapangitsa kuti mphamvu yoyezera ifike mwachindunji pamalo opangira zinthu m'malo mofuna kuti ziwalo zinyamulidwe kupita ku labotale yoyendetsedwa ndi kutentha. Ma arm system amenewa, omwe nthawi zambiri amakhala ndi ma axes asanu ndi limodzi kapena asanu ndi awiri oyendera, amalola ogwiritsa ntchito kuyeza zigawo zomwe zili pamalopo, kuphatikiza zigawo zomwe zimasungidwa mu zida kapena zophatikizidwa mu machitidwe akuluakulu. Ngakhale kuti manja onyamulika sangafanane ndi kulondola kwa ma CMM okhazikika a labotale, kusinthasintha kwawo ndi kupezeka kwawo zimapangitsa kuti zikhale zofunika kwambiri pakugwiritsa ntchito komwe kusokoneza kapena kusamutsa sikungatheke.
Ma CMM owoneka bwino amakankhira malire a liwiro loyezera ndi kuthekera kosakhudzana. Machitidwewa amagwiritsa ntchito mawonekedwe a triangulation ndi kukonza zithunzi zapamwamba kuti agwire miyeso ya magawo atatu popanda kukhudza ntchito. Njira yosakhudzana ndi kukhudzana ndi yofunikira kwambiri poyezera malo ofewa, zipangizo zofewa, kapena zinthu zopukutidwa bwino komwe kufufuza kukhudzana kungayambitse kuwonongeka kapena kuipitsidwa. Ma CMM amakono owoneka bwino amakwaniritsa kulondola kwa kalasi ya metrology pomwe amachepetsa kwambiri nthawi yoyezera poyerekeza ndi machitidwe ogwirizana ndi kukhudzana.
Mu mtundu wosiyanasiyana wa CMM uwu, nkhani yokhudza kulondola imakhala yofunika kwambiri. Kulondola kwa CMM si chinthu chimodzi chokha koma ndi zotsatira zovuta zomwe zimakhudzidwa ndi zinthu zambiri zolumikizana. Mikhalidwe yachilengedwe mwina ndi chinthu chofunikira kwambiri chomwe chimakhudza kulondola kwa muyeso. Kusinthasintha kwa kutentha kumapangitsa kuti kapangidwe ka makina ndi ntchito zikulire kapena kuchepa, zomwe zimayambitsa zolakwika zomwe zingachepetse mphamvu ya makinawo. Chigawo chachitsulo cholemera mita imodzi m'litali chidzakula pafupifupi ma micrometer khumi ndi chimodzi pa digiri iliyonse ya Celsius yomwe ikukwera kutentha, pomwe aluminiyamu imakula pafupifupi kawiri kuposa pamenepo. Pa miyeso yomwe imafuna kulondola kwa mulingo wa micrometer, kuwongolera kutentha kumakhala kofunikira kwambiri.
Njira yachikhalidwe yoyendetsera zotsatira za kutentha imaphatikizapo kusunga ma CMM m'ma laboratories olamulidwa ndi kutentha omwe amasungidwa pa madigiri 20 Celsius ndi kulekerera kolimba pa kukhazikika kwa kutentha. Komabe, chizolowezi chokulirapo chosunthira kuwunika kwa magawo kupita kumalo opangira zinthu chapanga zovuta zatsopano. Ma CMM apamwamba tsopano akuphatikiza machitidwe olimbikitsira kutentha omwe amayang'anira kutentha kwa sikelo ya makina ndi zigawo zofunika kwambiri, pogwiritsa ntchito kusintha kwa nthawi yeniyeni pazotsatira zoyezera. Ngakhale machitidwe awa sangachotse zotsatira za kutentha kwathunthu, amachepetsa kwambiri kusatsimikizika kwa kuyeza m'malo omwe kuwongolera kutentha kolimba sikungatheke.
Kugwedezeka ndi chinthu china chomwe chingapangitse kuti CMM isagwire bwino ntchito. Makina oyesera a makina oyezera ogwirizana amagwira ntchito pa sikelo ya micrometer, komwe kugwedezeka pang'ono kuchokera ku zida zapafupi, kuyenda kwa mapazi, kapena makina omanga nyumba kungayambitse zolakwika zoyezera. Ma CMM amtundu wa mlatho ndi gantry omwe amagwiritsidwa ntchito mu labotale nthawi zambiri amafunikira kudzipatula kuchokera ku magwero ogwedezeka kudzera m'maziko apadera, malo osungira kugwedezeka, kapena malo ofunikira mkati mwa malo. Ma CMM onyamulika amakumana ndi zovuta zazikulu zogwedezeka chifukwa amagwira ntchito mwachindunji pa malo opangira, ngakhale kuti zosowa zawo zochepa zimapangitsa kuti izi zikhale zovomerezeka.
Dongosolo lofufuzira palokha ndi chinthu chofunikira kwambiri pa kulondola kwa CMM. Ma probe oyambitsa ma touch-trigger, omwe ndi ofala kwambiri, amakhudza pamwamba pa workpiece ndikupanga chizindikiro chamagetsi akakhudza chomwe chimalemba malo a probe. Kulondola kwa kusanthula ma touch-trigger kumadalira sphericity ya nsonga ya probe, kuuma ndi kuwongoka kwa cholembera cha probe, komanso kusinthasintha kwa mphamvu ya choyambitsa. Pakapita nthawi, kulumikizana mobwerezabwereza kumatha kuvulaza nsonga ya probe, kusintha pang'onopang'ono kukula kwake kogwira ntchito ndikuyambitsa zolakwika m'miyeso. Kuwongolera nthawi zonse ndikusintha nsonga za probe nthawi ndi nthawi kumakhalabe njira zofunika kwambiri kuti musunge kulondola kwa muyeso.
Ma probe ojambulira amapereka njira yosiyana, amayenda mosalekeza pamwamba pa workpiece pamene akusunga kulumikizana mkati mwa mtunda wodziwika bwino. Machitidwewa amasonkhanitsa mfundo zikwizikwi pa sekondi, zomwe zimathandiza kufotokoza mwatsatanetsatane mawonekedwe a pamwamba, mbiri, ndi kapangidwe kake komwe sikungakhale koyenera ndi touch-trigger probe. Komabe, kulondola kwa scan sikutanthauza kokha pa mawonekedwe a probe komanso kuthekera kwa makina owongolera kusunga mphamvu yolumikizana nthawi zonse pamene akutsatira mizere ya pamwamba.
Ma probe osakhudzana ndi kuwala, kuphatikizapo masensa a laser ndi makina owonera, amachotsa zotsatira za makina owonera koma amayambitsa magwero awoawo osatsimikizika. Kuwunikira pamwamba, mtundu, ndi kapangidwe kake kungakhudze kulondola kwa kuwala, zomwe zimafuna kuyesedwa mosamala komanso nthawi zina kuyeza kambiri pansi pa mikhalidwe yosiyanasiyana ya kuwala. Makina owonera katatu a laser amakwaniritsa kulondola kwakukulu pa ntchito zina koma amatha kuvutika ndi ngodya zotsetsereka kapena zomaliza zowunikira kwambiri.
Kapangidwe ka makina a CMM palokha kamayambitsa zolakwika za geometric zomwe zimakhudza kulondola kwa muyeso. Ngakhale ma axel a makina opangidwa bwino kwambiri amawonetsa kusiyana pang'ono kuchokera ku kulunjika kwangwiro, kukhazikika pakati pa ma axel, ndi kulondola kwa malo. Zolakwika za geometric izi nthawi zambiri zimadziwika kudzera mu njira zolimba zowerengera ndikulipidwa mu mapulogalamu, zomwe zimachepetsa mphamvu zawo pa zotsatira za muyeso. Komabe, kugwira ntchito bwino kwa kubwezeretsa zolakwika kumadalira kukhazikika kwa kapangidwe ka makina pakapita nthawi komanso pazochitika zachilengedwe.
Makina amakono oyezera a CMM amagwiritsa ntchito njira yolipirira zolakwika za volumetric, njira yotsogola yomwe imayesa zolakwika za geometric mu voliyumu yonse yoyezera m'malo molipira axis iliyonse padera. Njirayi imazindikira kuti zolakwika zimasiyana kutengera komwe probe ili mkati mwa envelopu yogwirira ntchito ya makina, zomwe zimapangitsa kuti zikhale zolondola kwambiri kuposa njira zosavuta zolipirira. Njira yolipirira zolipirira volumetric nthawi zambiri imagwiritsa ntchito laser interferometers kapena zida zina zolondola kuti ziwonetse zolakwika pamalo osiyanasiyana muyeso, ndikupanga chitsanzo chokwanira cha zolakwika chomwe chimagwiritsidwa ntchito ndi wowongolera makina.
Makina oyezera a OGP coordinate akuwonetsa momwe ukadaulo wamakono umathanirana ndi mavuto olondola awa kudzera mu kapangidwe katsopano. OGP, kapena Optical Gaging Products, yayambitsa njira zoyezera masensa ambiri zomwe zimaphatikiza kusanthula kwa tactile ndi masensa owonera ndi laser m'mapulatifomu ogwirizana. Mndandanda wa OGP FlexPoint ukuyimira momwe ukadaulowu ulili pano, ukupereka ma CMM akuluakulu okhala ndi masensa ambiri omwe amatha kuthandizira ma scanning probes, telecentric optics, ndi interferometric laser sensors nthawi imodzi pamitu yolumikizana.
Njira ya multisensor imagwira ntchito yovuta kwambiri pakuyeza molondola: mawonekedwe ndi malo osiyanasiyana amafuna njira zosiyanasiyana zoyezera kuti akhale olondola kwambiri. Zinthu zomwe zimapezeka mosavuta ndi ma contact probes zitha kukhala zosaoneka ndi makina owonera, pomwe malo ofewa omwe sangakhudzidwe angafunike njira zosakhudzana. Ma CMM achikhalidwe amafuna kusintha kwa ma probe ndi kubwezeretsanso posintha pakati pa njira zoyezera, zomwe zimawononga nthawi komanso zomwe zingabweretse zolakwika. Njira ya OGP yokhala ndi kupezeka kwa sensor nthawi imodzi imachotsa kusinthaku, zomwe zimapangitsa kuti sensor yabwino kwambiri ya muyeso uliwonse isankhidwe ndikuyikidwa popanda kuchedwa ndi kusatsimikizika kwa kusinthana kwa sensor.
Mapulogalamu owongolera makina oyezera zinthu zofananira amasewera gawo lofunika kwambiri pakulondola kwa muyeso. Mapulogalamu amakono a CMM amaphatikiza ma algorithms apamwamba kwambiri oyezera radius, geometric fitting, coordinate system agration, ndi tolerance evaluation. Njira zamasamu zomwe zimagwiritsidwa ntchito poyika zinthu za geometric ku mfundo zoyezedwa zimatha kukhudza kwambiri zotsatira zomwe zanenedwa, makamaka pazinthu zomwe zili ndi zolakwika za mawonekedwe kapena mfundo zochepa zoyezera. Mapulogalamu ozikidwa pa CAD amalola kuti njira zoyezera zipangidwe ndikutsimikiziridwa popanda intaneti, kuchepetsa nthawi yogwira ntchito kwa makina ndikuwonetsetsa kuti kuyeza kumachitika nthawi zonse.
Njira yoyezera yokha ndi yomwe imapangitsa kuti zinthu zikhale zolondola. Kuchuluka ndi kugawa kwa mfundo zoyezera, kutsatana kwa miyezo, njira zoyezera zomwe zimagwiritsidwa ntchito pofufuza, ndi njira zoyezera zonse zimakhudza zotsatira. Akatswiri odziwa bwino za metro amamvetsetsa kuti kungotenga mfundo zambiri sikungowonjezera kulondola; malo ndi kugawa kwa mfundo poyerekeza ndi chinthu chomwe chikuyesedwa nthawi zambiri kumakhala kofunikira kuposa kuchuluka kwa mfundo zonse. Pa zolekerera za geometric monga flatness kapena cylindricity, njira yoyezera iyenera kuyesa bwino pamwamba kapena mawonekedwe onse kuti ijambule zolakwika zomwe zingakhalepo.
Luso la wogwiritsa ntchito limakhala lofunika ngakhale pa makina a CMM odziyendetsa okha. Ngakhale ma CMM olamulidwa ndi CNC amatha kuchita zinthu zoyezera popanda kulowererapo kwa wogwiritsa ntchito, mapulogalamu oyamba ndi kukhazikitsa njira zoyezera zimafuna kumvetsetsa kulekerera kwa geometric, kusatsimikizika kwa muyeso, ndi mphamvu za makina. Zolakwika mu logic ya pulogalamu, njira zolumikizira, kapena matanthauzidwe a mawonekedwe zimatha kupitilirabe osapezeka kudzera mu ntchito yodziyendetsa yokha, zomwe zimapangitsa zotsatira zomwe zimawoneka zolondola koma kwenikweni ndizosakondera kapena zolakwika.
Chizolowezi chomwe chikupitilira ku Industry 4.0 ndi kupanga mwanzeru chikusintha momwe ma CMM amagwirizanirana ndi njira zopangira. Deta yoyezera nthawi yeniyeni imapatsa machitidwe owongolera ziwerengero, zomwe zimathandiza kuzindikira mwachangu ndikusintha zolakwika zopangira. Ma CMM olumikizidwa amagawana zotsatira zoyezera m'maukonde amakampani, kuthandizira machitidwe oyang'anira khalidwe ndi zofunikira pakutsata unyolo woperekera. Mphamvu zophatikiza izi zimawonjezera phindu kupitirira ntchito yoyambira yoyezera, kusintha makina oyezera ogwirizana kuchokera ku zida zowunikira zodzipatula kukhala ma node olumikizidwa mumakina anzeru opangira.
Pamene kulekerera kwa kupanga kukupitirira kulimba ndipo magawo a geometri akukula kwambiri, kufunika komvetsetsa mitundu ya CMM ndi zinthu zolondola kudzangowonjezeka. Kusankha kapangidwe koyenera ka CMM ka ntchito zinazake, kusunga kuwongolera chilengedwe kapena kulipira, kukhazikitsa njira zowunikira mwamphamvu ndi kutsimikizira, komanso kupanga njira zoyezera zomwe zimayang'ana magwero osatsimikizika zonse zimathandiza kukwaniritsa kulondola komwe kupanga kwamakono kumafuna. Kaya kudzera mu mapangidwe achikhalidwe a mlatho, mikono yonyamulika, makina owonera, kapena nsanja zatsopano zamasensa ambiri monga makina oyezera a OGP, kuthekera koyesa ndi chidaliro kumakhalabe koyambira pa khalidwe la kupanga.
Nthawi yotumizira: Epulo-21-2026