Magwero a zolakwika zosasinthika zaMakina Oyezera OgwirizanaMakamaka zimaphatikizapo: cholakwika cha Makina Oyezera Ogwirizanitsa okha, monga cholakwika cha makina owongolera (mzere wowongoka, kuzungulira), kusintha kwa makina owongolera, cholakwika cha probe, cholakwika cha kuchuluka kokhazikika; cholakwika chomwe chimayambitsidwa ndi zinthu zosiyanasiyana zokhudzana ndi mikhalidwe yoyezera, monga mphamvu ya malo oyezera (kutentha, fumbi, ndi zina zotero), mphamvu ya njira yoyezera ndi mphamvu ya zinthu zina zosatsimikizika, ndi zina zotero.
Magwero a zolakwika za makina oyezera ogwirizana ndi ovuta kwambiri kotero kuti zimakhala zovuta kuzizindikira ndikuzilekanitsa chimodzi ndi chimodzi ndikuzikonza, ndipo nthawi zambiri magwero a zolakwika okhawo omwe ali ndi mphamvu yayikulu pa kulondola kwa makina oyezera ogwirizana ndi omwe ndi osavuta kuwalekanitsa ndi omwe amakonzedwa. Pakadali pano, cholakwika chomwe chafufuzidwa kwambiri ndi cholakwika cha makina oyezera ogwirizana. Ma CMM ambiri omwe amagwiritsidwa ntchito popanga ndi ma CMM a orthogonal coordinate system, ndipo pa ma CMM wamba, cholakwika cha makina makamaka chimatanthauza cholakwika cha gawo loyenda, kuphatikiza cholakwika cha malo, cholakwika cha kuyenda kolunjika, cholakwika cha angular motion, ndi cholakwika cha perpendicularity.
Kuwunika kulondola kwamakina oyezera ogwirizanakapena kuti agwiritse ntchito kukonza zolakwika, chitsanzo cha cholakwika chokhazikika cha makina oyezera ogwirizana chimagwiritsidwa ntchito ngati maziko, momwe tanthauzo, kusanthula, kutumiza ndi cholakwika chonse cha chinthu chilichonse cholakwika chiyenera kuperekedwa. Chomwe chimatchedwa cholakwika chonse, pakutsimikizira kulondola kwa ma CMM, chimatanthauza cholakwika chophatikizidwa chomwe chikuwonetsa mawonekedwe olondola a ma CMM, mwachitsanzo, kulondola kwa chizindikiro, kulondola kobwerezabwereza, ndi zina zotero: muukadaulo wokonza zolakwika wa ma CMM, chimatanthauza kulakwitsa kwa vekitala kwa malo.
Kusanthula zolakwika za makina
Makhalidwe a CMM, njanji yowongolera imaletsa madigiri asanu a ufulu ku gawo lotsogozedwa ndi iyo, ndipo njira yoyezera imalamulira digiri yachisanu ndi chimodzi ya ufulu poyenda, kotero malo a gawo lowongolera mumlengalenga amatsimikiziridwa ndi njanji yowongolera ndi njira yoyezera yomwe ili yake.
Kusanthula zolakwika za kafukufuku
Pali mitundu iwiri ya ma CMM probes: ma contact probes amagawidwa m'magulu awiri: switching (yomwe imadziwikanso kuti touch-trigger kapena dynamic signaling) ndi scanning (yomwe imadziwikanso kuti proportional or static signaling) malinga ndi kapangidwe kake. Zolakwika za switching probe zomwe zimayambitsidwa ndi switch stroke, probe anisotropy, switch stroke dispersion, reset dead zone, etc.. Scanning probe error yomwe imayambitsidwa ndi mphamvu ya displacement relation, displacement a displacement relation, cross-coupling interference, ndi zina zotero.
Kugundana kwa chogwirira ntchito cha probe ndi kukhudzana ndi tsitsi la probe, kupotoka kwa mtunda. Ichi ndi cholakwika cha dongosolo la probe. Kusokonezeka kwa chogwirira ntchito ndi kusasinthasintha kwa kugwedezeka kwa chogwirira mbali zonse. Ndi cholakwika chadongosolo, koma nthawi zambiri chimaonedwa ngati cholakwika chosasinthika. Kuwonongeka kwa kuyenda kwa chosinthira kumatanthauza kuchuluka kwa kufalikira kwa kuyenda kwa chosinthira panthawi yoyezera mobwerezabwereza. Muyeso weniweni umawerengedwa ngati kupotoka kwa kayendedwe ka chosinthira mbali imodzi.
Kubwezeretsa deadband kumatanthauza kupatuka kwa ndodo ya probe kuchokera pamalo ofanana, kuchotsa mphamvu yakunja, ndodo mu kasupe mphamvu yobwezeretsanso, koma chifukwa cha ntchito ya kukangana, ndodoyo singathe kubwerera kumalo oyamba, ndi kupatuka kuchokera pamalo oyamba ndiye deadband yobwezeretsanso.
Cholakwika chophatikizidwa cha CMM
Chomwe chimatchedwa cholakwika chophatikizidwa ndi kusiyana pakati pa mtengo woyezedwa ndi mtengo weniweni wa mtunda wa mfundo ndi mfundo mu malo oyezera a CMM, omwe angafotokozedwe ndi njira yotsatirayi.
Cholakwika chophatikizidwa chogwirizana = mtengo woyezera mtunda mtengo weniweni wa mtunda
Kuti CMM quota ivomerezedwe komanso kuti CMM iwerengedwe nthawi ndi nthawi, sikofunikira kudziwa molondola cholakwika cha mfundo iliyonse mu malo oyezera, koma kulondola kwa ntchito yoyezera ma coordinate, komwe kungayesedwe ndi cholakwika chogwirizana cha CMM.
Cholakwika chophatikizidwa sichikuwonetsa mwachindunji gwero la cholakwika ndi cholakwika chomaliza choyezera, koma chimangowonetsa kukula kwa cholakwikacho poyesa miyeso yokhudzana ndi mtunda, ndipo njira yoyezera ndi yosavuta.
Cholakwika cha vekitala ya malo cha CMM
Cholakwika cha vekitala ya malo chimatanthauza cholakwika cha vekitala nthawi iliyonse mu malo oyezera a CMM. Ndi kusiyana pakati pa mfundo iliyonse yokhazikika mu malo oyezera mu dongosolo loyenera la coordinate la ngodya yakumanja ndi ma coordinate a magawo atatu ofanana mu dongosolo lenileni la coordinate lomwe lakhazikitsidwa ndi CMM.
Mwachidziwitso, cholakwika cha vector ya malo ndi cholakwika chonse cha vector chomwe chimapezeka mwa kupanga zolakwika zonse za malo amenewo.
Kulondola kwa muyeso wa CMM n'kovuta kwambiri, ndipo kuli ndi zigawo zambiri komanso kapangidwe kovuta, komanso zinthu zambiri zomwe zimakhudza cholakwika cha muyeso. Pali magwero anayi akuluakulu a zolakwika zosasinthika mu makina ozungulira ambiri monga CMM motere.
(1) Zolakwika za geometriki zomwe zimachitika chifukwa cha kulondola kochepa kwa zigawo za kapangidwe kake (monga malangizo ndi njira zoyezera). Zolakwika izi zimatsimikiziridwa ndi kulondola kwa kapangidwe ka zigawo za kapangidwe kake komanso kulondola kwa kusintha pakukhazikitsa ndi kukonza.
(2) Zolakwika zokhudzana ndi kuuma kwa magawo a makina a CMM. Zimachitika makamaka chifukwa cha kulemera kwa magawo oyenda. Zolakwika izi zimatsimikiziridwa ndi kuuma kwa magawo omangidwa, kulemera kwawo ndi kapangidwe kawo.
(3) Zolakwika za kutentha, monga kukulitsa ndi kupindika kwa chitsogozo chomwe chimachitika chifukwa cha kusintha kwa kutentha kamodzi ndi kusintha kwa kutentha. Zolakwika izi zimatsimikiziridwa ndi kapangidwe ka makina, mawonekedwe a zinthu ndi kufalikira kwa kutentha kwa CMM ndipo zimakhudzidwa ndi magwero akunja otentha (monga kutentha kozungulira) ndi magwero amkati otentha (monga unit yoyendetsera).
(4) zolakwika za probe ndi zowonjezera, makamaka kuphatikiza kusintha kwa radius ya kumapeto kwa probe komwe kumachitika chifukwa cha kusintha kwa probe, kuwonjezera ndodo yayitali, kuwonjezera zowonjezera zina; cholakwika cha anisotropic pamene probe ikakhudza muyeso m'njira zosiyanasiyana ndi malo osiyanasiyana; cholakwika chomwe chimachitika chifukwa cha kuzungulira kwa tebulo lowerengera.
Nthawi yotumizira: Novembala-17-2022