Zvizhinji zveMichina yeCmm (michina yekuyera yakarongwa) zvakagadzirwa nazvikamu zvegranite.
Michina yekuyera yakabatana (CMM) chishandiso chekuyera chinochinjika uye chakagadzira mabasa akati wandei munzvimbo yekugadzira, kusanganisira kushandiswa murabhoritari yemhando yepamusoro, uye basa razvino rekutsigira zvakananga kugadzirwa kwezvigadzirwa munzvimbo dzakaoma. Maitiro ekupisa eCMM encoder scales anova chinhu chakakosha pakati pemabasa ayo nekushandiswa kwayo.
Muchinyorwa chakabudiswa munguva pfupi yapfuura, chakanyorwa naRenishaw, nyaya yenzira dzekuisa scale encoder dzinofamba-famba uye dzakanyatsogadzirwa dzinokurukurwa.
Zvikero zve encoder hazvishande zvakanyanya pakupisa kubva pa substrate yavo yekukwira (inoyangarara) kana kuti zvinoenderana nekupisa kubva pa substrate (yakagadziriswa). Chikero chinoyangarara chinokura uye chinodzika zvichienderana nehunhu hwekupisa hwechinhu chekuyera, nepo chikero chakagadziriswa chichikura uye chinodzika pamwero wakafanana ne substrate iri pasi. Matekiniki ekuyera ekuisa chikero anopa mabhenefiti akasiyana-siyana ekushandiswa kwakasiyana-siyana kwekuyera: chinyorwa kubva kuRenishaw chinoratidza apo chikero chakagadziriswa chingave mhinduro inosarudzwa yemichina yerabhoritari.
MaCMM anoshandiswa kubata data rekuyera rine mativi matatu pazvinhu zvakagadzirwa nemazvo, zvakaita semainjini blocks nemajeti enjini, sechikamu chemaitiro ekudzora mhando. Kune mhando ina huru dzemuchina wekuyera wecoordinate: bhiriji, cantilever, gantry uye ruoko rwakatambanudzwa. MaCMM emhando yebhiriji ndiwo anonyanya kuzivikanwa. Mukugadzira bhiriji reCMM, quill yeZ-axis inoiswa pangoro inofamba nebhiriji. Bhiriji rinofambiswa nenzira mbiri dzekutungamira munzira yeY-axis. Mota inofambisa fudzi rimwe rebhiriji, nepo fudzi rakapesana risingafambiswe: chimiro chebhiriji chinowanzo tungamirirwa / kutsigirwa pamabheringi emhepo. Ngoro (X-axis) nequill (Z-axis) zvinogona kufambiswa nebhandi, sikuruu kana mota yakatsetseka. MaCMM akagadzirwa kuderedza zvikanganiso zvisingadzokororwe sezvo izvi zvakaoma kutsiva mucontroller.
MaCMM anoshanda zvakanyanya ane mubhedha wegranite une mafuta akawanda uye chimiro chakasimba chegantry/bridge, chine quill isina simba rakawanda iyo ine sensor yekuyera maficha ebasa. Ruzivo rwakagadzirwa runoshandiswa kuona kuti zvikamu zvinosangana nezvinodiwa zvakatarwa. Ma encoders emutsetse akanyatsogadzirwa akaiswa pama axes eX, Y neZ akasiyana anogona kureba mamita akawanda pamichina mikuru.
CMM yegranite bridge yakajairika inoshandiswa muimba ine mhepo inotonhorera, ine avhareji yekupisa kwe20 ±2 °C, uko tembiricha yemukamuri inotenderera katatu paawa yega yega, inobvumira granite ine kupisa kwakanyanya kuchengetedza avhareji yekupisa kwe20 °C. Chishandiso chesimbi chisina kusimba chinoyangarara chakaiswa paCMM axis yega yega chingave chakazvimiririra zvakanyanya kubva pasi pegranite substrate uye chinopindura nekukurumidza kuchinja kwekupisa kwemhepo nekuda kwekupisa kwayo kwakanyanya uye kupisa kwakaderera, izvo zvakaderera zvakanyanya pane kupisa kwetafura yegranite. Izvi zvinotungamira pakuwedzera kwakanyanya kana kudzikira kwechikero pamusoro pe3m axis yakajairika yeinenge 60 µm. Kuwedzera uku kunogona kukonzera kukanganisa kukuru kwekuyera uko kwakaoma kudzoreredza nekuda kwehunhu hwayo hunosiyana-siyana.
Chikero chakagadziriswa chesubstrate ndicho chinosarudzwa munyaya iyi: chikero chakagadziriswa chinongowedzera chete ne coefficient of thermal expansion (CTE) ye granite substrate uye, nekudaro, hachizoratidzi shanduko huru mukupindura kudiki kwekupisa kwemhepo. Kuchinja kwenguva refu kwekupisa kunofanira kufungwa nezvako uye izvi zvinokanganisa avhareji yekupisa kwe substrate ine thermal mass yakawanda. Kubhadharisa tembiricha kuri nyore sezvo controller ichingoda kubhadharisa maitiro ekupisa emuchina pasina kufungawo nezvemaitiro e encoder scale thermal.
Muchidimbu, masisitimu e encoder ane zvikero zve substrate imhinduro yakanaka kwazvo yeCMM dzakanyatsojeka dzine CTE yakaderera / high thermal mass substrates nezvimwe zvinoshandiswa zvinoda mazinga epamusoro e metrology performance. Zvakanakira zvezvikero zve mastered zvinosanganisira kurerutsa maitiro e thermal compensation uye mukana wekuderedza zvikanganiso zvekuyera zvisingadzokororwe nekuda kwe, semuenzaniso, kushanduka kwekupisa kwemhepo munzvimbo yemuchina wemuno.
Nguva yekutumira: Zvita-25-2021