Imithombo yephutha emile yeHlanganisa Umshini Wokulinganisaikakhulukazi zihlanganisa: iphutha Lomshini Wokulinganisa Wokudidiyela ngokwawo, njengephutha lendlela yokuqondisa (umugqa oqondile, ukuzungeza), ukuguqulwa kwesistimu yokuhlanganisa ireferensi, iphutha le-probe, iphutha lenani elijwayelekile; iphutha elibangelwa izici ezihlukahlukene ezihlobene nezimo zokulinganisa, njengethonya lendawo yokulinganisa (izinga lokushisa, uthuli, njll.), umthelela wendlela yokulinganisa kanye nomthelela wezinye izici zokungaqiniseki, njll.
Imithombo yephutha yomshini wokulinganisa wokudidiyela iyinkimbinkimbi kangangokuthi kunzima ukuyibona nokuyihlukanisa ngayinye ngayinye futhi ilungiswe, futhi ngokuvamile leyo mithombo yamaphutha kuphela enomthelela omkhulu ekunembeni komshini wokulinganisa wokuhlanganisa kanye naleyo okulula ukuyihlukanisa iyalungiswa. Njengamanje, iphutha elicwaningwe kakhulu yiphutha lemishini yomshini wokulinganisa wokuhlanganisa. Iningi lama-CMM asetshenziswa ekukhiqizeni ama-CMM esistimu ye-orthogonal, futhi kuma-CMM ajwayelekile, iphutha lemishini libhekisela ikakhulukazi ephutheni lengxenye yokunyakaza okuqondile, okuhlanganisa iphutha lokuma, iphutha lokunyakaza okuqondile, iphutha lokunyakaza kwe-angular, kanye nephutha le-perpendicularity.
Ukuhlola ukunemba kwe-xhumanisa umshini wokulinganisanoma ukwenza ukulungisa amaphutha, imodeli yephutha elingokwemvelo lomshini wokulinganisa wokudidiyela isetshenziswa njengesisekelo, lapho incazelo, ukuhlaziya, ukudluliselwa kanye nephutha eliphelele lento ngayinye yephutha kufanele inikezwe. Okubizwa ngephutha eliphelele, ekuqinisekiseni ukunemba kwama-CMM, kubhekisela ephutheni elihlanganisiwe elibonisa izici zokunemba zama-CMM, okungukuthi, ukunemba kwenkomba, ukunemba kokuphindaphinda, njll.: kubuchwepheshe bokulungisa amaphutha wama-CMM, kubhekisela ephutheni le-vector lamaphuzu wendawo.
Ukuhlaziywa kwephutha le-Mechanism
Izici zemishini ye-CMM, ujantshi wesitimela ukhawulela amadigri amahlanu enkululeko engxenyeni eqondiswa yiyo, futhi isistimu yokulinganisa ilawula idigri yesithupha yenkululeko lapho ukunyakaza khona, ngakho ukuma kwengxenye eqondisiwe emkhathini kunqunywa isitimela somhlahlandlela kanye nesistimu yokulinganisa okungeyayo.
Hlola iphutha lokuhlaziya
Kunezinhlobo ezimbili zama-CMM probes: ama-contact probe ahlukaniswe abe izigaba ezimbili: ukushintsha (okubuye kwaziwe ngokuthi i-touch-trigger noma isignali eguquguqukayo) kanye nokuskena (okubuye kwaziwe njengokusayinda okulinganiselwe noma okumile) ngokuya ngesakhiwo sazo. Ukushintsha amaphutha ophenyo abangwe ukushaywa kwe-switch, i-probe anisotropy, ukushintsha ukuhlakazeka kwe-stroke, setha kabusha indawo efile, njll.
Ukushintshwa kwe-strobe ye-probe kanye nokuxhumana kocezu lokusebenza kusizwa sezinwele esicutshungulwayo, ukuchezuka kwe-probe kwebanga. Leli iphutha lesistimu lophenyo. I-anisotropy ye-probe ukungahambisani kwe-switching stroke kuzo zonke izinkomba. Kuyiphutha elihlelekile, kodwa ngokuvamile lithathwa njengephutha elingahleliwe. Ukubola kohambo lweswishi kubhekisela ezingeni lokuhlakazeka kohambo lweswishi phakathi nezilinganiso eziphindaphindiwe. Isilinganiso sangempela sibalwa njengokuchezuka okujwayelekile kohambo lweswishi ohlangothini olulodwa.
Setha kabusha i-deadband ibhekisela ekuphambukeni kwenduku ye-probe ukusuka endaweni yokulinganisa, susa amandla angaphandle, induku ekumiseni kabusha kwamandla entwasahlobo, kodwa ngenxa yendima yokungqubuzana, induku ayikwazi ukubuyela endaweni yokuqala, iwukuchezuka endaweni yokuqala i-deadband yokusetha kabusha.
Iphutha elihlanganisiwe elihlobene le-CMM
Okubizwa ngephutha elihlanganisiwe elihlobene umehluko phakathi kwevelu elinganisiwe kanye nenani langempela lebanga lephoyinti ukuya kwelinye endaweni yokulinganisa ye-CMM, engavezwa ngefomula elandelayo.
Iphutha elihlanganisiwe elihlobene = inani lokulinganisa ibanga inani langempela
Ukuze uthole ukwamukelwa kwesabelo se-CMM nokulinganisa ngezikhathi ezithile, akudingekile ukwazi ngokuqondile iphutha lephoyinti ngalinye esikhaleni sokulinganisa, kodwa kuphela ukunemba kocwecwe bokusebenza bokulinganisa bokuxhumanisa, okungahlolwa ngephutha elihlanganisiwe elihlobene le-CMM.
Iphutha elihlanganisiwe elihlobene alibonisi ngokuqondile umthombo wephutha kanye nephutha lokugcina lesilinganiso, kodwa libonisa kuphela usayizi wephutha lapho kulinganiswa ubukhulu obuhlobene nebanga, futhi indlela yokulinganisa ilula ngokuqhathaniswa.
Iphutha le-Space vector ye-CMM
Iphutha le-Space Vector lisho iphutha levekhtha nganoma yisiphi isikhathi esikhaleni sokulinganisa se-CMM. Ungumehluko phakathi kwanoma yiliphi iphuzu eligxilile esikhaleni sokulinganisa kusistimu yokuxhumanisa ye-engeli engakwesokudla kanye nezixhumanisi ezihambisanayo ezinezinhlangothi ezintathu ohlelweni lwangempela lokuxhumanisa olusungulwe i-CMM.
Ngokwethiyori, iphutha le-vector yesikhala liyiphutha eliphelele le-vector elitholwe ukuhlanganiswa kwe-vector yawo wonke amaphutha alelo phuzu lesikhala.
Ukunemba kokulinganisa kwe-CMM kufuna kakhulu, futhi inezingxenye eziningi nesakhiwo esiyinkimbinkimbi, nezici eziningi ezithinta iphutha lokulinganisa. Kunemithombo emine eyinhloko yamaphutha amile emishinini yama-axis amaningi njengama-CMM kanje.
(1) Amaphutha eJiyomethri abangwe ukunemba okulinganiselwe kwezingxenye zesakhiwo (njengemihlahlandlela nezinhlelo zokulinganisa). Lawa maphutha anqunywa ukunemba kokukhiqizwa kwalezi zingxenye zesakhiwo kanye nokunemba kokulungiswa ekufakweni nasekunakekeleni.
(2) Amaphutha ahlobene nokuqina okulinganiselwe kwezingxenye zemishini ye-CMM. Ngokuyinhloko zibangelwa isisindo sezingxenye ezihambayo. Lawa maphutha anqunywa ukuqina kwezingxenye zesakhiwo, isisindo sazo kanye nokucushwa kwazo.
(3) Amaphutha okushisa, njengokunwetshwa nokugoba komhlahlandlela okubangelwa ukuguquka kwezinga lokushisa okukodwa nama-gradients. Lawa maphutha anqunywa ukwakheka komshini, izinto ezibonakalayo kanye nokusatshalaliswa kwezinga lokushisa kwe-CMM futhi kuthonywa imithombo yokushisa yangaphandle (isb. izinga lokushisa elizungezile) kanye nemithombo yokushisa yangaphakathi (isb. iyunithi yokushayela).
(4) amaphutha okuphenya kanye nesesekeli, ikakhulukazi okuhlanganisa izinguquko endaweni engaba isiphetho se-probe ebangelwa ukushintshwa kophenyo, ukwengezwa kwenduku ende, ukwengezwa kwezinye izesekeli; iphutha le-anisotropic lapho i-probe ithinta ukulinganisa ngezindlela ezahlukene kanye nezindawo; iphutha elidalwe ukuzungeziswa kwetafula lezinkomba.
Isikhathi sokuthumela: Nov-17-2022