Kwimeko yokwenziwa kwezinto ngokuchanekileyo kwanamhlanje, apho ukunyamezelana kuncipha khona kwaye iimfuno zomgangatho ziya zisanda rhoqo, umatshini wokulinganisa olungelelanisiweyo umi njengenye yezona zixhobo zibalulekileyo zokuqinisekisa ukuchaneka kobukhulu. Ezi zixhobo zinobuchule zitshintshe ulawulo lomgangatho ngokutshintsha iindlela zokuhlola ngesandla ngezakhono zokulinganisa ezizenzekelayo nezichanekileyo kakhulu ezinokubamba iimpawu zejometri zeendawo ezintsonkothileyo ezinemilinganiselo emithathu. Ukuqonda iintlobo ezahlukeneyo zoomatshini bokulinganisa be-CMM abafumanekayo kunye nezinto ezichaphazela ukuchaneka kwabo kuye kwaba lulwazi olubalulekileyo kwiinjineli zokuvelisa, abaphathi bomgangatho, kunye neengcali zokuthenga kumashishini onke ukusuka kwi-aerospace kunye neemoto ukuya kwizixhobo zonyango kunye ne-elektroniki.
Umatshini wokulinganisa i-coordinate usebenza ngomgaqo osisiseko ophikisana nobunzima bawo. Ngokuhambisa inkqubo yokuphanda kwii-axes ezintathu ze-orthogonal, ezidla ngokuba yi-X, Y, kunye ne-Z kwinkqubo ye-Cartesian coordinate, umatshini ufumana amanqaku ahlukeneyo kumphezulu wento. I-axis nganye ibandakanya ii-sensors ezijonga indawo ye-probe ngokuchanekileyo okungaqhelekanga, ezihlala zilinganiswa kwii-micrometer okanye nakwii-fractions zee-micrometer. Amanqaku aqokelelweyo enza oko iingcali ze-metro zibiza ngokuba yi-point cloud, ngokuyintloko ukubonakaliswa kwedijithali komphezulu olinganisiweyo onokuthelekiswa neenkcukacha zoyilo, iimodeli ze-CAD, okanye iimfuno zokulinganisa kunye nokunyamezelana kwejometri.
Uphuhliso lwetekhnoloji yeCMM luvelise uyilo loomatshini abahlukeneyo abahlukeneyo, nganye ilungiselelwe ukusetyenziswa okuthile, ubungakanani benxalenye, kunye neendawo zokusebenza. IiCMM zohlobo lwebhulorho zimele ulungelelwaniso olwamkelwe kakhulu kwiindawo zokwenza ngokuchanekileyo. Ezi matshini zinesakhiwo esifana nebhulorho esigubungela itafile yokulinganisa, kunye nenkqubo yokuphonononga exhonywe kwibhari ethe tye exhaswa ziikholamu ezimbini ezithe nkqo. Uyilo lwebhulorho lubonelela ngokuqina nokuzinza okungaqhelekanga, okuvumela ukuchaneka kokulinganisa okunokufikelela kumanqanaba angaphantsi kwe-micrometer phantsi kweemeko ezilawulwayo. IiCMM zeBridge zibalasele ekulinganiseni izinto ezincinci ukuya kweziphakathi ezinokunyamezelana okuqinileyo, okwenza ukuba zibe yimfuneko kumashishini apho ukuchaneka kubaluleke kakhulu.
Ii-CMM zohlobo lwe-gantry zabelana ngolwakhiwo lwebhulorho kodwa ziyayilinganisa kakhulu ukuze zilinganiswe kakhulu. Endaweni yokuba ziphumle etafileni, oomatshini be-gantry baxhonywa ngqo emgangathweni kwiziseko ezinikezelweyo, nto leyo esusa isidingo sokuphakamisa izinto ezinzima kumaqonga aphakamileyo. Olu lwakhiwo lubonakala lufanelekile kwiinxalenye zeenqwelo moya, iindibano ezinkulu zeemoto, kunye neendawo zoshishino ezinzima eziya kugqitha oomatshini bebhulorho abaqhelekileyo. Ngelixa ii-CMM ze-gantry zincama ezinye zezona nkcukacha ziphezulu kakhulu ezinokufikelelwa ngoyilo lwebhulorho, zihlawula ubungakanani obukhulu bokulinganisa obunokufikelela kwiimitha ezininzi kwi-axis nganye.
Ii-CMM zohlobo lweCantilever zibonelela ngendlela eyahlukileyo yokwakheka, kunye nentloko yokulinganisa enamathele kwicala elinye kuphela lesiseko esiqinileyo. Olu lungiselelo lubonelela ngokufikelela okuvulekileyo kwindawo yokulinganisa ukusuka kumacala amathathu, okwenza kube lula ukulayisha nokukhupha iindawo. Oomatshini beCantilever bahlala bekhonza usetyenziso olubandakanya izinto ezincinci apho ukufikelela komqhubi kunye nokusebenza kakuhle komsebenzi kuthatha indawo yokuchaneka okuphezulu.
Ii-CMM zengalo ethe tye zijongana nemingeni yokulinganisa ekunzima ukuyisombulula kwezinye izakhiwo. Ngokujolisa iprobe ngokuthe tye endaweni yokuyijolisa ngokuthe nkqo, ezi matshini zinokuhlola izinto ezinde nezincinci ezifana neephaneli zesinyithi, izakhiwo zomzimba wezithuthi, kunye namacandelo e-fuselage eenqwelo-moya. Uyilo lweengalo ezithe tye lurhweba ngokuchanekileyo ukuze lufikeleleke kwaye lufikeleleke, nto leyo eyenza ukuba zibe lolona khetho lukhethwayo lokulinganisa iijometri ezinzima ukufikelela kuzo ngoqwalaselo lweprobe ethe tye.
Iingalo zokulinganisa eziphathekayo ze-CMM zimele utshintsho oluqhelekileyo kwi-metrology yobukhulu, ezisa amandla okulinganisa ngqo kumgangatho wemveliso endaweni yokufuna ukuba iindawo zithuthwe ziye kwilebhu elawulwa bubushushu. Ezi nkqubo zeengalo ezidityanisiweyo, ezihlala zine-axis ezintandathu okanye ezisixhenxe zokuhamba, zivumela abaqhubi ukuba balinganise izinto ezikwindawo, kuquka iindawo ezihlala zidibene kwiindawo ezifakelweyo okanye ezidityaniswe kwiinkqubo ezinkulu. Nangona iingalo eziphathekayo zingenakulingana nokuchaneka kwee-CMM zelebhu ezizinzileyo, ukuguquguquka kwazo kunye nokufikeleleka kwazo kuzenza zibe luncedo kakhulu kwizicelo apho ukuqhaqha okanye ukufuduswa kungenzeki.
Ii-CMM ze-Optical zityhala imida yesantya sokulinganisa kunye nokukwazi ukungadibani. Ezi nkqubo zisebenzisa unxantathu we-optical kunye nokucubungula imifanekiso okuphucukileyo ukuze zibambe imilinganiselo emithathu ngaphandle kokuchukumisa ngokwasemzimbeni isiqwenga somsebenzi. Indlela yokungadibani ibalulekile ekulinganiseni imiphezulu ethambileyo, izinto ezithambileyo, okanye izinto ezicociweyo kakhulu apho ukuphonononga unxibelelwano kunokubangela umonakalo okanye ungcoliseko. Ii-CMM ze-optical zanamhlanje zifezekisa ukuchaneka kwenqanaba le-metrology ngelixa zinciphisa kakhulu amaxesha omjikelo wokulinganisa xa kuthelekiswa neenkqubo ezisekelwe kunxibelelwano.
Kule meko ihlukeneyo yeentlobo zeCMM, umbuzo wokuchaneka uba ngowona ubalulekileyo. Ukuchaneka kweCMM akuyonto inye kodwa sisiphumo esintsonkothileyo esiphenjelelwa zizinto ezininzi ezisebenzisanayo. Iimeko zokusingqongileyo mhlawumbi zimele utshintsho olubalulekileyo oluchaphazela ukuchaneka kokulinganisa. Ukuguquguquka kobushushu kubangela ukuba ulwakhiwo lomatshini kunye nomsebenzi wokusebenza kwande okanye kunciphe, nto leyo engenisa iimpazamo ezinokuthi zinciphise amandla omatshini. Icandelo lentsimbi elilinganisa imitha enye ubude liya kwandisa malunga nee-micrometer ezilishumi elinanye kwiqondo ngalinye lokunyuka kobushushu beCelsius, ngelixa i-aluminium ikhula phantse kabini kweso santya. Kwimilinganiselo efuna ukuchaneka kwinqanaba le-micrometer, ulawulo lobushushu luba lubaluleke kakhulu.
Indlela yendabuko yokulawula iziphumo zobushushu ibandakanya ukuhlala ii-CMM kwiilebhu zemetrology ezilawulwa bubushushu ezigcinwe kuma-degrees Celsius angamashumi amabini kunye nokunyamezela okuqinileyo kuzinzo lobushushu. Nangona kunjalo, umkhwa okhulayo wokuhambisa ukuhlolwa kobukhulu ukuya kumgangatho wemveliso udale imingeni emitsha. Ii-CMM eziphambili ngoku zibandakanya iinkqubo ezisebenzayo zokuhlawula ubushushu ezijonga ubushushu bezikali zomatshini kunye nezinto ezibalulekileyo zokwakha, zisebenzisa izilungiso zexesha langempela kwiziphumo zokulinganisa. Nangona ezi nkqubo zingenakususa ngokupheleleyo iziphumo zobushushu, zinciphisa kakhulu ukungaqiniseki kokulinganisa kwiindawo apho ulawulo lobushushu oluqinileyo lungasebenzi.
Ukungcangcazela kubonisa enye into engqongileyo enokonakalisa ukuchaneka kwe-CMM. Iinkqubo zokuphonononga zoomatshini bokulinganisa abadibeneyo zisebenza kwisikali se-micrometer, apho nokungcangcazela okuncinci okuvela kwizixhobo ezikufutshane, ukuhamba ngeenyawo, okanye iinkqubo zesakhiwo kunokungenisa iimpazamo zokulinganisa. Ii-CMM zohlobo lwebhulorho kunye ne-gantry ezenzelwe ukusetyenziswa kwelebhu zihlala zifuna ukwahlulwa kwimithombo yokungcangcazela ngokusebenzisa iziseko ezizinikeleyo, ii-mounts zokuqhawula ukungcangcazela, okanye indawo ecwangcisiweyo ngaphakathi kwesakhiwo. Ii-CMM eziphathekayo zijongene nemingeni emikhulu yokungcangcazela kuba zisebenza ngokuthe ngqo kumgangatho wemveliso, nangona iimfuno zazo zokuchaneka okuphantsi zenza oku kwamkeleke ngakumbi.
Inkqubo yokuphanda ngokwayo iyinto ebalulekileyo ekuchanekeni kwe-CMM. Ii-probe ze-touch-trigger, uhlobo oluqhelekileyo, zinxibelelana ngokwasemzimbeni nomphezulu we-workpiece kwaye zivelise isignali yombane xa ziqhagamshelwe erekhoda indawo ye-probe. Ukuchaneka kokuphanda kwe-touch-trigger kuxhomekeke kububanzi be-probe tip, ukuqina kunye nokuthe tye kwe-probe stylus, kunye nokungaguquguquki kwamandla e-trigger. Ngokuhamba kwexesha, uqhagamshelwano oluphindaphindwayo lunokugqoka i-probe tip, lutshintshe kancinci ububanzi bayo obusebenzayo kwaye lungenise iimpazamo ezicwangcisiweyo kwimilinganiselo. Ukulinganiswa rhoqo kunye nokutshintshwa kwe-probe tips rhoqo kuhlala kuyimisebenzi ebalulekileyo yokugcina ukuchaneka kokulinganisa.
Iiprobe zokuskena zibonelela ngendlela eyahlukileyo, zihamba ngokuqhubekayo kumphezulu wezinto zokusebenza ngelixa zigcina unxibelelwano ngaphakathi koluhlu oluchaziweyo. Ezi nkqubo ziqokelela amawaka amanqaku ngomzuzwana, zivumela ukuchazwa okuneenkcukacha kwemo yomphezulu, iprofayili, kunye nobunjani obungayi kusebenza xa kuphandwa nge-touch-trigger. Nangona kunjalo, ukuchaneka kokuskena akuxhomekanga kuphela kwi-probe geometry kodwa nakwikhono lenkqubo yolawulo lokugcina amandla onxibelelwano ahambelanayo ngelixa ilandela imilo yomphezulu.
Iiprobe ezingadibaniyo, kuquka ii-laser sensors kunye neenkqubo ze-optical, zisusa imiphumo yoomatshini yokuxilonga unxibelelwano kodwa zizisa imithombo yazo yokungaqiniseki. Ukukhanya komphezulu, umbala, kunye nobunjani kunokuchaphazela ukuchaneka kokulinganisa umbane, kufuna ukulinganiswa ngononophelo kwaye ngamanye amaxesha ukulinganisa okuninzi phantsi kweemeko ezahlukeneyo zokukhanya. Iinkqubo ze-laser triangulation zifezekisa ukuchaneka okuphezulu kwizicelo ezithile kodwa zinokusokola ngee-engile eziphezulu zomphezulu okanye ukugqitywa okukhanyayo kakhulu.
Ulwakhiwo loomatshini lweCMM ngokwalo luzisa iimpazamo zejiyometri ezichaphazela ukuchaneka kokulinganisa. Kwanee-axes zomatshini ezenziwe ngokuchanekileyo zibonisa ukuphambuka okuncinci ukusuka ekuqondeni okugqibeleleyo, ukungqamana phakathi kwee-axes, kunye nokuchaneka kokubeka. Ezi mpazamo zejiyometri zihlala zibonakaliswa ngeenkqubo zokulinganisa ezingqongqo kwaye zihlawulwa kwisoftware, zinciphisa impembelelo yazo kwiziphumo zokulinganisa. Nangona kunjalo, ukusebenza kakuhle kwembuyekezo yeempazamo kuxhomekeke kuzinzo lwesakhiwo somatshini ngokuhamba kwexesha nakwiimeko zendalo.
Iimatshini zokulinganisa ze-CMM zanamhlanje ziquka imbuyekezo yeempazamo zevolumetric, indlela ephucukileyo ebonakalisa iimpazamo zejiyometri kuyo yonke ivolumu yokulinganisa endaweni yokuhlawula i-axis nganye ngokuzimeleyo. Le ndlela iyaqonda ukuba iimpazamo ziyahluka ngokuxhomekeke ekubeni iprobe ibekwe phi ngaphakathi kwemvulophu yokusebenza yomatshini, ifezekisa ukuchaneka okuphezulu kuneendlela ezilula zokuhlawula. Inkqubo yokulinganisa imbuyekezo yevolumetric idla ngokusebenzisa ii-laser interferometers okanye ezinye izixhobo zokuchaneka ukulinganisa iimpazamo kwiindawo ezininzi kuyo yonke indawo yokulinganisa, okwenza imodeli yempazamo epheleleyo esetyenziswa ngumlawuli womatshini.
Umatshini wokulinganisa we-OGP ubonisa indlela iteknoloji yanamhlanje ejongana ngayo nale mingeni yokuchaneka ngoyilo olutsha. I-OGP, okanye iiMveliso ze-Optical Gaging, iye yaba nguvulindlela kwiinkqubo zokulinganisa ii-multisensor ezidibanisa i-tactile probing kunye nee-optical kunye nee-laser sensors kumaqonga adibeneyo. Uthotho lwe-OGP FlexPoint lubonisa imeko yangoku yale teknoloji, lubonelela ngee-CMM ezinkulu ezinee-multisensor ezikwaziyo ukuxhasa ii-scanning probes, ii-telecentric optics, kunye nee-interferometric laser sensors ngaxeshanye kwiintloko ezihambelanayo.
Indlela ye-multisensor ijongana nomceli mngeni obalulekileyo ekulinganiseni ngokuchanekileyo: iimpawu ezahlukeneyo kunye nomphezulu zifuna iindlela ezahlukeneyo zokulinganisa ukuze kube nokuchaneka okuphezulu. Iimpawu ezifikeleleka lula ngee-contact probes zisenokungabonakali kwiinkqubo ze-optical, ngelixa iindawo ezibuthathaka ezingenakuthintwa zinokufuna iindlela ezingezizo zokunxibelelana. Ii-CMM zemveli zifuna utshintsho lwe-probe kunye nokulungiswa kwakhona xa zitshintsha phakathi kweendlela zokulinganisa, zichitha ixesha kwaye zinokungenisa iimpazamo. Indlela ye-OGP enobukho be-sensor ngaxeshanye iyayisusa le nguqu, ivumela i-sensor efanelekileyo yokulinganisa nganye ukuba ikhethwe kwaye ibekwe ngaphandle kokulibaziseka kunye nokungaqiniseki kokutshintshwa kwe-sensor.
Iimatshini zokulinganisa ezilawula isoftware zidlala indima ebaluleke ngakumbi ekuchanekeni kokulinganisa. Isoftware yanamhlanje ye-CMM ibandakanya ii-algorithms ezintsonkothileyo zokuhlawula i-probe radius, ukulingana kwejometri, ukulungelelaniswa kwenkqubo, kunye novavanyo lokunyamezelana. Iindlela zezibalo ezisetyenziselwa ukulinganisa izinto zejometri kumanqaku alinganisiweyo zinokuchaphazela kakhulu iziphumo ezibikiweyo, ngakumbi kwiimpawu ezineempazamo zefom okanye amanqaku okulinganisa alinganiselweyo. Inkqubo esekelwe kwi-CAD ivumela iinkqubo zokulinganisa ukuba ziphuhliswe kwaye ziqinisekiswe ngaphandle kwe-intanethi, ukunciphisa ixesha lokungasebenzi komatshini kunye nokuqinisekisa ukuphunyezwa kokulinganisa okuqhubekekayo.
Icebo lokulinganisa ngokwalo liyinxalenye yokuchaneka. Inani kunye nokusasazwa kwamanqaku okulinganisa, ulandelelwano lwemilinganiselo, izikhokelo zendlela ezisetyenziselwa ukuphonononga, kunye neendlela zokulungisa zonke zinefuthe kwiziphumo. Iingcali zemetro ezinamava ziyaqonda ukuba ukuthatha amanqaku amaninzi akuphuculi ngokuzenzekelayo ukuchaneka; ukubekwa kunye nokusasazwa kwamanqaku ngokumalunga nesici esilinganiswayo kudla ngokubaluleka ngaphezu kokubalwa kwamanqaku apheleleyo. Kwimilinganiselo yejiyometri efana nokuthe tyaba okanye i-cylindricity, icebo lokulinganisa kufuneka lithathe isampulu ngokwaneleyo yonke indawo okanye uphawu ukuze libambe iimpazamo ezinokubakho.
Izakhono zomsebenzisi zihlala zibalulekile nakwiinkqubo zeCMM ezizenzekelayo kakhulu. Nangona iiCMM ezilawulwa yiCNC zinokusebenzisa iindlela zokulinganisa ngokungenelela okuncinci komsebenzisi, ucwangciso lokuqala kunye nokuseta iinkqubo zokulinganisa kufuna ukuqonda ukunyamezelana kwejometri, ukungaqiniseki kokulinganisa, kunye nobuchule bomatshini. Iimpazamo kwi-logic yenkqubo, iinkqubo zokulungelelanisa, okanye iinkcazo zeempawu zinokuqhubeka zingabonwa ngokwenziwa ngokuzenzekelayo, zivelise iziphumo ezibonakala zichanekile kodwa ngokwenene zinocalucalulo okanye azichanekanga.
Umkhwa oqhubekayo kwi-Industry 4.0 kunye ne-smart manufacturing uphinda utshintshe indlela ii-CMM ezidibana ngayo kwiinkqubo zemveliso. Idatha yokulinganisa ngexesha langempela yondla iinkqubo zolawulo lwenkqubo yezibalo, ivumela ukufunyanwa ngokukhawuleza kunye nokulungiswa kokuphambuka kwemveliso. Ii-CMM ezixhunyiweyo zabelana ngeziphumo zokulinganisa kuzo zonke iinethiwekhi zeshishini, zixhasa iinkqubo zolawulo lomgangatho kunye neemfuno zokulandelela uthotho lweenkonzo. Ezi zakhono zokudibanisa zongeza ixabiso ngaphaya komsebenzi osisiseko wokulinganisa, ziguqula oomatshini bokulinganisa abadibeneyo ukusuka kwizixhobo zokuhlola ezizimeleyo ukuya kwiindawo ezixhunyiweyo kwiinkqubo zobukrelekrele bokuvelisa.
Njengoko ukunyamezelana kwemveliso kuqhubeka kuqina kwaye iijometri zenxalenye zisiba nzima ngakumbi, ukubaluleka kokuqonda iintlobo zeCMM kunye nezinto ezichanekileyo kuya kwanda kuphela. Ukukhetha uyilo olufanelekileyo lweCMM kwizicelo ezithile, ukugcina ulawulo lokusingqongileyo okanye imbuyekezo, ukusebenzisa iinkqubo zokulinganisa ezingqongqo kunye nokuqinisekisa, kunye nokuphuhlisa amaqhinga okulinganisa ajongana nemithombo yokungaqiniseki konke kunegalelo ekufezekiseni ukuchaneka okufunekayo kumveliso wanamhlanje. Nokuba kukusetyenziswa koyilo lwebhulorho yendabuko, iingalo eziphathwayo, iinkqubo ze-optical, okanye amaqonga e-multisensor anobuchule afana nomatshini wokulinganisa we-OGP, amandla okulinganisa ngokuzithemba ahlala esisiseko kumgangatho womveliso.
Ixesha leposi: Epreli-21-2026