Esimweni sokukhiqiza ngokunemba kwesimanje, lapho ukubekezelelana kuncipha khona futhi izidingo zekhwalithi zikhula njalo, umshini wokulinganisa ohambisanayo umi njengenye yezinsimbi ezibaluleke kakhulu zokuqinisekisa ukunemba kobukhulu. Lawa madivayisi ayinkimbinkimbi ashintshe ukulawulwa kwekhwalithi ngokufaka izindlela zokuhlola ngesandla ngamakhono okulinganisa azenzakalelayo, anembe kakhulu angabamba izici zejometri zezingxenye eziyinkimbinkimbi ezinobukhulu obuthathu. Ukuqonda izinhlobo ezahlukene zemishini yokulinganisa ye-CMM etholakalayo kanye nezici ezithonya ukunemba kwayo sekuyilwazi elibalulekile konjiniyela bokukhiqiza, abaphathi bekhwalithi, kanye nochwepheshe bokuthenga kuzo zonke izimboni kusukela ezindizayo nasezimotweni kuya kumadivayisi ezokwelapha kanye ne-elekthronikhi.
Umshini wokulinganisa ama-coordinate usebenza ngesimiso esiyisisekelo esiphikisana nobuchwepheshe bawo. Ngokuhambisa uhlelo lokuhlola ngama-axes amathathu aqondile, ngokuvamile abizwa ngokuthi u-X, u-Y, no-Z ohlelweni lwe-Cartesian coordinate, umshini uthola amaphuzu ahlukene ebusweni bento. I-axis ngayinye ifaka izinzwa eziqapha indawo ye-probe ngokunemba okungavamile, okuvame ukulinganiswa ngama-micrometer noma ngisho nezingxenyana zama-micrometer. Amaphuzu aqoqwe akha lokho ochwepheshe be-metro abakubiza ngokuthi ifu lamaphuzu, empeleni ukumelwa kwedijithali kwendawo elinganisiwe okungaqhathaniswa nokucaciswa komklamo, amamodeli e-CAD, noma izidingo zokulinganisa nokulinganisela kwe-geometric.
Ukuvela kobuchwepheshe be-CMM kukhiqize izakhiwo eziningana zemishini ezihlukile, ngayinye elungiselelwe izinhlelo zokusebenza ezithile, osayizi bezingxenye, kanye nezindawo zokusebenza. Ama-CMM ohlobo lwebhuloho amelela ukucushwa okwamukelwa kabanzi ezindaweni zokukhiqiza ngokunemba. Le mishini inesakhiwo esifana nebhuloho esihlanganisa ithebula lokulinganisa, kanye nesistimu yokuhlola elenga emshayweni ovundlile osekelwa amakholomu amabili aqondile. Umklamo webhuloho unikeza ukuqina nokuzinza okumangalisayo, okwenza kube nokunemba kokulinganisa okungafinyelela amazinga angaphansi kwe-micrometer ngaphansi kwezimo ezilawulwayo. Ama-CMM ebhuloho avelele ekulinganiseni izingxenye ezincane kuya kweziphakathi ezinokumelana okuqinile, okwenza zibe yinto ebalulekile ezimbonini lapho ukunemba kubaluleke kakhulu.
Ama-CMM ohlobo lwe-gantry abelana ngokulungiselelwa kwebhuloho kodwa alilinganisa kakhulu ukuze alinganiswe kakhulu. Esikhundleni sokuphumula etafuleni, imishini ye-gantry ifakwa ngqo phansi ezisekelweni ezinikezelwe, okususa isidingo sokuphakamisa izingxenye ezisindayo kumapulatifomu aphezulu. Lo mklamo ubonakala ulungele izingxenye zezindiza, izinhlangano ezinkulu zezimoto, kanye nezingxenye zezimboni ezisindayo ezingadlula imishini yebhuloho evamile. Ngenkathi ama-CMM e-gantry edela okunye kokunemba okuphezulu kakhulu okutholakala ngemiklamo yebhuloho, akhokhela ngamanani amakhulu okulinganisa angafinyelela amamitha amaningi ku-axis ngayinye.
Ama-CMM ohlobo lwe-Cantilever anikeza indlela ehlukile yokwakha, enekhanda lokulinganisa elinamathiselwe ohlangothini olulodwa kuphela lwesisekelo esiqinile. Lokhu kulungiselelwa kunikeza ukufinyelela okuvulekile endaweni yokulinganisa kusuka ezinhlangothini ezintathu, okwenza kube lula ukulayisha nokuthulula izingxenye. Imishini ye-Cantilever ivame ukukhonza izinhlelo zokusebenza ezihilela izingxenye ezincane lapho ukufinyelela komqhubi kanye nokusebenza kahle komsebenzi kuqala kunokunemba okukhulu okungenzeka.
Ama-CMM angalo avundlile abhekana nezinselele zokulinganisa ezinye izakhiwo ezilwela ukuzixazulula. Ngokuqondisa i-probe ngokuvundlile kunokuba iqonde phezulu, le mishini ingahlola izingxenye ezinde nezincane ezifana namaphaneli ensimbi, izakhiwo zomzimba wezimoto, kanye nezingxenye ze-fuselage zezindiza. Imiklamo yengalo evundlile ihweba ngokunemba okuthile ukuze ifinyeleleke kalula futhi ifinyeleleke, okwenza kube ukukhetha okuthandwayo kokulinganisa amajiyometri okunzima ukuwafinyelela ngokulungiswa kwe-probe evundlile.
Ama-CMM engalo yokulinganisa ephathekayo amelela ushintsho olujwayelekile ku-metrology yobukhulu, okuletha ikhono lokulinganisa ngqo endaweni yokukhiqiza kunokuba kudingeke ukuthi izingxenye zithuthwe ziye elabhorethri elawulwa izinga lokushisa. Lezi zinhlelo zengalo ezihlanganisiwe, ngokuvamile ezinezingqimba eziyisithupha noma eziyisikhombisa zokuhamba, zivumela opharetha ukuthi balinganise izingxenye endaweni, kufaka phakathi izingxenye ezihlala zihlanganiswe ezisekelweni noma ezihlanganiswe ezinhlelweni ezinkulu. Ngenkathi izingalo eziphathekayo zingenakulingana nokunemba kwama-CMM elabhorethri aqinile, ukuguquguquka kwawo kanye nokufinyeleleka kuzenza zibe usizo kakhulu ekusetshenzisweni lapho ukuhlukaniswa noma ukufuduswa kungenzeki khona.
Ama-CMM abonakalayo acindezela imingcele yesivinini sokulinganisa kanye nekhono lokungathintani. Lezi zinhlelo zisebenzisa unxantathu obonakalayo kanye nokucubungula izithombe okuthuthukisiwe ukuze kuthathwe izilinganiso ezintathu ngaphandle kokuthinta umsebenzi. Indlela yokungathintani ibalulekile ekulinganiseni izindawo ezibucayi, izinto ezithambile, noma izingxenye ezicwebezelisiwe kakhulu lapho ukuhlolwa kokuxhumana kungabangela umonakalo noma ukungcola. Ama-CMM abonakalayo anamuhla afinyelela ukunemba kwebanga le-metrology ngenkathi enciphisa kakhulu izikhathi zomjikelezo wokulinganisa uma kuqhathaniswa nezinhlelo ezisekelwe ekuthinteni.
Ngaphakathi kwale ndawo ehlukahlukene yezinhlobo ze-CMM, umbuzo wokunemba uba yinto ebaluleke kakhulu. Ukunemba kwe-CMM akuyona into eyodwa ecacisiwe kodwa umphumela oyinkimbinkimbi othonywa izici eziningi ezisebenzisanayo. Izimo zemvelo mhlawumbe zimelela ukuguquguquka okubaluleke kakhulu okuthinta ukunemba kokulinganisa. Ukushintshashintsha kwezinga lokushisa kubangela kokubili isakhiwo somshini kanye nomsebenzi wokusebenza ukuthi kwande noma kunciphe, okuletha amaphutha anganciphisa ikhono lomshini elingokwemvelo. Ingxenye yensimbi elinganisa imitha elilodwa ubude izokwandisa cishe ama-micrometer ayishumi nanye kuwo wonke amazinga okushisa e-Celsius, kuyilapho i-aluminium ikhula cishe kabili lelo zinga. Ngezilinganiso ezidinga ukunemba kwezinga le-micrometer, ukulawulwa kwezinga lokushisa kuba yinto ebaluleke kakhulu.
Indlela yendabuko yokuphatha imiphumela yokushisa ihilela ukuhlala ama-CMM ezindaweni zokuhlola amazinga okushisa ezilawulwa amazinga okushisa ezigcinwe kuma-degree Celsius angamashumi amabili kanye nokubekezelelana okuqinile ekuzinzeni kokushisa. Kodwa-ke, ukuthambekela okukhulayo kokuhambisa ukuhlolwa kobukhulu endaweni yokukhiqiza kudale izinselele ezintsha. Ama-CMM athuthukile manje afaka izinhlelo zokunciphisa izinga lokushisa ezisebenzayo eziqapha izinga lokushisa lezikali zomshini kanye nezingxenye ezibalulekile zesakhiwo, zisebenzisa ukulungiswa kwesikhathi sangempela emiphumeleni yokulinganisa. Nakuba lezi zinhlelo zingenakukwazi ukuqeda imiphumela yokushisa ngokuphelele, zinciphisa kakhulu ukungaqiniseki kokulinganisa ezindaweni lapho ukulawulwa kokushisa okuqinile kungenzeki khona.
Ukudlidliza kumelela esinye isici semvelo esingalimaza ukunemba kwe-CMM. Izinhlelo zokuhlola zemishini yokulinganisa ehambisanayo zisebenza esikalini se-micrometer, lapho ngisho nokudlidliza okuncane okuvela emishinini eseduze, ukuhamba ngezinyawo, noma izinhlelo zesakhiwo kungaletha amaphutha okulinganisa. Ama-CMM ohlobo lwebhuloho kanye ne-gantry ahloselwe ukusetshenziswa kwelabhorethri ngokuvamile adinga ukuhlukaniswa nemithombo yokudlidliza ngokusebenzisa izisekelo ezizinikele, izindawo zokubopha ukudlidliza, noma ukubekwa okuhlelekile ngaphakathi kwesikhungo. Ama-CMM aphathekayo abhekene nezinselele ezinkulu zokudlidliza njengoba esebenza ngqo ezitezi zokukhiqiza, yize izidingo zawo zokunemba eziphansi ngokuvamile zenza lokhu kwamukeleke kakhudlwana.
Uhlelo lokuhlola ngokwalo luyisici esibalulekile ekuqondeni kwe-CMM. Ama-probe e-touch-trigger, uhlobo oluvame kakhulu, athinta ubuso bomsebenzi ngokomzimba futhi akhiqize isignali kagesi lapho ethinta eqopha indawo ye-probe. Ukunemba kokuhlola kwe-touch-trigger kuncike ekujuleni kwe-probe tip, ukuqina nokuqondile kwe-probe stylus, kanye nokuvumelana kwamandla e-trigger. Ngokuhamba kwesikhathi, ukuxhumana okuphindaphindiwe kungaguga i-probe tip, kushintshe kancane kancane ububanzi bayo obusebenzayo futhi kufake amaphutha ahlelekile ezilinganisweni. Ukulinganisa njalo kanye nokushintsha njalo ama-probe tips kuseyimikhuba ebalulekile yokugcina ukunemba kokulinganisa.
Ama-probe okuskena anikeza indlela ehlukile, ehamba njalo phezu kwendawo yokusebenza ngenkathi egcina ukuxhumana ngaphakathi kobubanzi obuchaziwe. Lezi zinhlelo ziqoqa izinkulungwane zamaphuzu ngomzuzwana, okwenza kube lula ukuchaza ngokuningiliziwe isimo sobuso, iphrofayili, kanye nokuthungwa okungeke kwenzeke ngokuhlola nge-touch-trigger. Kodwa-ke, ukunemba kokuskena akuxhomekile kuphela ku-geometry ye-probe kodwa futhi nekhono lesistimu yokulawula lokugcina amandla okuxhumana ahambisanayo ngenkathi ilandela imingcele yobuso.
Ama-probe angathintani, kufaka phakathi izinzwa ze-laser kanye nezinhlelo zokukhanya, asusa imiphumela yemishini yokuhlola ukuxhumana kodwa aveza imithombo yawo yokungaqiniseki. Ukukhanya kwendawo, umbala, kanye nokuthungwa kungathinta ukunemba kokulinganisa kokukhanya, kudinga ukulinganiswa ngokucophelela futhi ngezinye izikhathi ukulinganisa okuningi ngaphansi kwezimo zokukhanya ezahlukene. Izinhlelo ze-laser triangulation zithola ukunemba okuphezulu kwezinhlelo ezithile kodwa zingase zibe nezinkinga ngama-engeli aphezulu noma ukuqeda okukhanya kakhulu.
Isakhiwo somshini se-CMM ngokwaso sethula amaphutha ejiyometri athinta ukunemba kokulinganisa. Ngisho nama-axes omshini akhiqizwe kahle kakhulu abonisa ukuphambuka okuncane kusukela ekuqondeni okuphelele, ukugoba phakathi kwama-axes, kanye nokunemba kokubeka. Lawa maphutha ejiyometri ngokuvamile abonakala ngezinqubo zokulinganisa ezinzima futhi akhokhelwa kusofthiwe, okunciphisa umthelela wawo emiphumeleni yokulinganisa. Kodwa-ke, ukusebenza kahle kwesinxephezelo samaphutha kuncike ekuzinzeni kwesakhiwo somshini ngokuhamba kwesikhathi nakuzo zonke izimo zemvelo.
Imishini yokulinganisa yesimanje ye-CMM ifaka isinxephezelo samaphutha e-volumetric, indlela eyinkimbinkimbi ekhombisa amaphutha e-geometric kulo lonke ivolumu yokulinganisa kunokuba ikhokhele i-axis ngayinye ngokuzimela. Le ndlela iyaqaphela ukuthi amaphutha ayahlukahluka kuye ngokuthi i-probe ibekwe kuphi ngaphakathi kwe-envelope yokusebenza yomshini, ifinyelela ukunemba okuphezulu kunezindlela ezilula zesinxephezelo. Inqubo yokulinganisa isinxephezelo sama-volumetric ivame ukusebenzisa ama-interferometer e-laser noma ezinye izinsimbi zokunemba ukudweba amaphutha ezindaweni eziningi kulo lonke isikhala sokulinganisa, okudala imodeli yamaphutha ephelele esetshenziswa umlawuli womshini.
Umshini wokulinganisa we-OGP ubonisa indlela ubuchwepheshe besimanje obubhekana ngayo nalezi zinselele zokunemba ngomklamo omusha. I-OGP, noma i-Optical Gaging Products, iye yaba yiphayona ezinhlelweni zokulinganisa ama-multisensor ezihlanganisa ukuhlola okuthintekayo nezinzwa ze-optical neze-laser kumapulatifomu ahlanganisiwe. Uchungechunge lwe-OGP FlexPoint lumelela isimo samanje salobu buchwepheshe, lunikeza ama-CMM amaningi anefomethi enkulu anamandla okusekela ama-scan probes, ama-telecentric optics, kanye nezinzwa ze-laser ze-interferometric ngasikhathi sinye emakhanda ahambisanayo.
Indlela yezinzwa eziningi ibhekana nenselele ebalulekile ekulinganisweni okunembile: izici ezahlukene kanye nobuso kudinga amasu ahlukene okulinganisa ukuze kube nokunemba okungcono. Izici ezitholakala kalula ngama-contact probes zingase zingabonakali ezinhlelweni zokubona, kuyilapho izindawo ezibucayi ezingenakuthintwa zingase zidinge izindlela ezingezona ezokuthintana. Ama-CMM endabuko adinga izinguquko ze-probe kanye nokulinganiswa kabusha lapho eshintsha phakathi kwezindlela zokulinganisa, edla isikhathi futhi engase angenise amaphutha. Indlela ye-OGP enokutholakala kwenzwa ngasikhathi sinye isusa lezi zinguquko, ivumela inzwa engcono kakhulu yokulinganisa ngakunye ukuthi ikhethwe futhi ibekwe ngaphandle kokubambezeleka nokungaqiniseki kokushintshaniswa kwezinzwa.
Isofthiwe elawula imishini yokulinganisa ehlanganisayo idlala indima ebaluleke kakhulu ekuqondeni kokulinganisa. Isofthiwe yesimanje ye-CMM ifaka ama-algorithms ayinkimbinkimbi okunciphisa i-probe radius, ukulingana kwe-geometric, ukuqondanisa uhlelo, kanye nokuhlolwa kokubekezelelana. Izindlela zezibalo ezisetshenziselwa ukulinganisa izakhi ze-geometric kumaphuzu alinganisiwe zingathinta kakhulu imiphumela ebikiwe, ikakhulukazi kuzici ezinamaphutha efomu noma amaphuzu okulinganisa alinganiselwe. Ukuhlela okusekelwe ku-CAD kuvumela imikhuba yokulinganisa ukuthi ithuthukiswe futhi iqinisekiswe ingaxhunyiwe ku-inthanethi, kunciphisa isikhathi sokungasebenzi komshini futhi kuqinisekiswe ukusebenza kokulinganisa okuqhubekayo.
Isu lokulinganisa ngokwalo liyisici ekuqondeni. Inani kanye nokusatshalaliswa kwamaphuzu okulinganisa, ukulandelana kwezilinganiso, iziqondiso zendlela ezisetshenziswa ekuhloleni, kanye nezindlela zokulungisa konke kuthonya imiphumela. Izazi ze-metro ezinolwazi ziyaqonda ukuthi ukuthatha amaphuzu amaningi akuthuthukisi ngokuzenzakalelayo ukunemba; ukubekwa kanye nokusatshalaliswa kwamaphuzu maqondana nesici esilinganiswayo kuvame ukubaluleka ngaphezu kokubalwa kwamaphuzu aphelele. Ngokubekezelelana kwejometri njengokuthamba noma ukuqina, isu lokulinganisa kumele lihlole ngokwanele yonke indawo noma isici ukuze libambe amaphutha efomu angase abe khona.
Ikhono lomqhubi lihlala libalulekile ngisho nasezinhlelweni ze-CMM ezenzakalelayo kakhulu. Nakuba ama-CMM alawulwa yi-CNC engenza imikhuba yokulinganisa ngokungenelela okuncane komqhubi, ukuhlela kokuqala kanye nokusetha izinqubo zokulinganisa kudinga ukuqonda ukubekezelelana kwejometri, ukungaqiniseki kokulinganisa, kanye namakhono omshini. Amaphutha ku-logic yohlelo, izinqubo zokuqondanisa, noma izincazelo zesici angaqhubeka engatholakali ngokusebenzisa okuzenzakalelayo, okukhiqiza imiphumela ebonakala inembile kodwa empeleni inobandlululo noma ayilungile.
Umkhuba oqhubekayo we-Industry 4.0 kanye nokukhiqiza okuhlakaniphile ushintsha indlela ama-CMM ahlangana ngayo nezinqubo zokukhiqiza. Idatha yokulinganisa yesikhathi sangempela yondla izinhlelo zokulawula inqubo yezibalo, ivumela ukutholwa okusheshayo nokulungiswa kokuphambuka kokukhiqiza. Ama-CMM axhunyiwe abelana ngemiphumela yokulinganisa kuwo wonke amanethiwekhi ebhizinisi, esekela izinhlelo zokuphatha ikhwalithi kanye nezidingo zokulandelela uchungechunge lokuhlinzeka. Lawa makhono okuhlanganisa anezela inani ngale komsebenzi oyisisekelo wokulinganisa, eguqula imishini yokulinganisa eqondisayo kusuka kumathuluzi okuhlola ahlukanisiwe ibe ama-node axhunyiwe ezinhlelweni zobuhlakani bokukhiqiza.
Njengoba ukubekezelelana kokukhiqiza kuqhubeka nokuqina futhi izingxenye zejiyometri zikhula zibe nzima kakhulu, ukubaluleka kokuqonda izinhlobo ze-CMM nezici zokunemba kuzokhula kuphela. Ukukhetha ukwakheka kwe-CMM okufanele kwezicelo ezithile, ukugcina ukulawulwa kwemvelo noma isinxephezelo, ukusebenzisa izinqubo zokulinganisa eziqinile kanye nokuqinisekisa, kanye nokuthuthukisa amasu okulinganisa abhekana nemithombo yokungaqiniseki konke kunegalelo ekufinyeleleni ukunemba okudingwa ukukhiqiza kwesimanje. Kungakhathaliseki ukuthi ngokusebenzisa imiklamo yebhuloho yendabuko, izingalo eziphathwayo, izinhlelo zokukhanya, noma amapulatifomu amasha e-multisensor njengomshini wokulinganisa we-OGP, ikhono lokulinganisa ngokuzethemba lihlala liyisisekelo sekhwalithi yokukhiqiza.
Isikhathi sokuthunyelwe: Ephreli-21-2026