Zvizhinji zveCmm michina (kurongedza michina yekuyeresa) inogadzirwa nagranite zvikamu.
A Coordinate Measuring Machines (CMM) chishandiso chekuyera chinochinjika uye chakagadzira akati wandei mabasa nenzvimbo yekugadzira, kusanganisira kushandiswa murabhoritari yechinyakare, uye ichangoburwa basa rekutsigira zvakananga kugadzira pasi pekugadzira munzvimbo dzakaoma.Maitiro ekupisa eCMM encoder zviyero inova yakakosha kufunga pakati pemabasa ayo uye mashandisiro.
Muchinyorwa chichangobva kuburitswa, naRenishaw, nyaya yekuyangarara uye nehunyanzvi encoder chiyero chekuisa maitiro inokurukurwa.
Encoder zvikero zvinobudirira zvingave zvakazvimiririra nekushisa pane yavo inokwira substrate (inoyangarara) kana nekushisa zvinoenderana neiyo substrate (mastered).Chikero chinoyangarara chinokura uye chinobvumira zvibvumirano zvinoenderana nehunhu hwekudziya kwechikero, nepo chikero che mastered chichiwedzera uye makondirakiti pamwero wakafanana neiyo pasi pe substrate.Maitiro ekuyeresa ekuyeresa anopa akasiyana mabhenefiti eakasiyana ekuyerwa mashandisirwo: chinyorwa kubva kuRenishaw chinopa nyaya apo chikero chehunyanzvi chinogona kusarudzwa mhinduro yemichina yemurabhoritari.
MaCMM anoshandiswa kutora dhata-dimensional yekuyera dhata pane yakanyanya kurongeka, zvinhu zvemuchina, senge mabhuroko einjini uye jet injini blades, sechikamu chemhando yekudzora maitiro.Kune mana emhando dzemhando dzekuyeresa muchina: bhiriji, cantilever, gantry uye yakachinjika ruoko.Bhiriji-mhando maCMMs ndiwo anonyanya kuitika.Mune CMM bhiriji dhizaini, Z-axis quill inoiswa pangoro inofamba ichitevedza bhiriji.Bhiriji rinofambiswa nenzira mbiri dzekutungamira munzira yeY-axis.Motokari inotyaira rimwe bendekete rebhiriji, nepo fudzi rakatarisana netsika risingafambiswi: chimiro chebhiriji chinowanzo tungamirwa / chinotsigirwa pamabheji aerostatic.Ngoro (X-axis) uye quill (Z-axis) inogona kufambiswa nebhandi, screw kana mutsara mota.MaCMM akagadzirirwa kuderedza zvikanganiso zvisingadzokororwe sezvo izvi zvakaoma kubhadhara mutongi.
Yepamusoro-inoshanda maCMM anosanganisira yakakwira yekupisa misa yegranite mubhedha uye yakaoma gantry / bhiriji chimiro, ine yakaderera inertia quill iyo yakasungirirwa sensor yekuyera basa-chidimbu maficha.Iyo data yakagadzirwa inoshandiswa kuve nechokwadi chekuti zvikamu zvinosangana zvakafanotemerwa kushivirira.Yepamusoro chaiyo mutsara encoder inoiswa pane yakaparadzana X, Y uye Z maaxes ayo anogona kureba mamita akawanda pamichina mikuru.
Yakajairika granite bhiriji-mhando yeCMM inoshanda mukamuri ine mhepo inofefetera, ine avhareji tembiricha ye20 ±2 °C, uko tembiricha yekamuri inotenderera katatu awa yega yega, inobvumira iyo yakanyanya-thermal mass granite kuchengetedza avhareji tembiricha ye. 20 °C.Iyo inoyangarara mutsara yesimbi isina tsvina encoder yakaiswa pane yega yega CMM axis yaizove yakazvimiririra zvakanyanya kubva kune granite substrate uye inopindura nekukurumidza kune shanduko yemhepo tembiricha nekuda kwekukwira kwayo kwekupisa uye kuderera kwekupisa kwehuremu, iyo yakadzikira zvakanyanya kupfuura kupisa kwemafuta etafura yegranite. .Izvi zvinotungamira kukuwedzera kukuru kana kudhonzwa kwechiyero pamusoro peiyo 3m axis inosvika 60 µm.Kuwedzera uku kunogona kuburitsa chikanganiso chakakura chekuyera icho chinonetsa kuripa nekuda kwekusiyana-siyana kwenguva.
A substrate mastered scale ndiyo yakasarudzwa sarudzo munyaya iyi: chiyero che mastered chaizongowedzera ne coefficient ye thermal expansion (CTE) yegranite substrate uye yaizoratidza shanduko shoma mukupindura kudiki oscillations mukupisa kwemhepo.Kuchinja kwenguva refu kwekushisa kunofanira kuramba kuchitariswa uye izvi zvichakanganisa avhareji yekupisa yeyakakwira-thermal mass substrate.Muripo wetembiricha wakatwasuka sezvo mutongi anongoda kutsiva maitiro ekupisa kwemuchina pasina zvakare kufunga nezve encoder scale thermal maitiro.
Muchidimbu, encoder masisitimu ane substrate mastered zvikero imhinduro yakanaka kune chaiyo CMM ine yakaderera CTE / yakakwira thermal mass substrates uye mamwe maapplication anoda yakakwira mazinga ekuita metrology.Zvakanakira zvikero zvine hunyanzvi zvinosanganisira kurerutswa kweanopisa muripo wehurumende uye mukana wekuderedza kusadzokororwa kwekuyerwa kukanganisa nekuda kwe, semuenzaniso, kusiyanisa kwekushisa kwemhepo munzvimbo yemuchina.
Nguva yekutumira: Zvita-25-2021