Zvinhu zvekuvaka zvinogara kwenguva refu. Iva nechokwadi chekuti zvinhu zvikuru zvekuvaka muchina zvine zvinhu zvisinganyanyi kukanganiswa nekuchinja-chinja kwekupisa. Funga nezvebhiriji (muchina X-axis), zvinotsigira bhiriji, gwara rekutungamira (muchina Y-axis), mabheringi uye Z-axis bar yemuchina. Zvikamu izvi zvinokanganisa zvakananga kuyerwa nekufamba kwemuchina, uye zvinoumba zvikamu zveCMM.
Makambani mazhinji anogadzira zvinhu izvi nearuminiyamu nekuda kwehuremu hwayo hushoma, kugona kwayo kugadzira zvinhu uye mutengo wakaderera. Zvisinei, zvinhu zvakaita segranite kana ceramic zviri nani kune maCMM nekuda kwekugadzikana kwekupisa. Pamusoro pekuti aruminiyamu inokura kanenge ka4 kupfuura granite, granite ine simba rekudzikisa vibration uye inogona kupa kupenya kwakanaka kwazvo uko mabheyaringi anogona kufamba. Granite, kutaura chokwadi, yave iri mwero unogamuchirwa nevakawanda wekuyera kwemakore.
Zvisinei, kune maCMM, granite ine dambudziko rimwe chete - inorema. Dambudziko nderekukwanisa, kungave neruoko kana neservo, kufambisa granite CMM pamaaxes ayo kuti itore zviyero. Rimwe sangano, The LS Starrett Co., rakawana mhinduro inonakidza yedambudziko iri: Hollow Granite Technology.
Tekinoroji iyi inoshandisa mapurati egranite akasimba nematanda anogadzirwa uye anounganidzwa kuti aumbe nhengo dzechivakwa dzisina chinhu. Zvivakwa izvi zvisina chinhu zvinorema searuminiyamu uku zvichichengetedza hunhu hwakanaka hwegranite mukupisa. Starrett inoshandisa tekinoroji iyi kune zvese zvikamu zvekutsigira bhiriji uye bhiriji. Nenzira yakafanana, vanoshandisa ceramic isina chinhu pabhiriji paCMM hombe apo granite isina chinhu isingashande.
Mabheyaringi. Vagadziri vese veCMM vakasiya masisitimu ekare ekutakura maroller, vachisarudza masisitimu ekutakura mweya epamusoro-soro. Masisitimu aya haadi kubatana pakati pebheyaringi nepamusoro pebheyaringi panguva yekushandiswa, zvichikonzera kusashanda. Pamusoro pezvo, mabheyaringi emhepo haana zvikamu zvinofamba uye, nekudaro, haana ruzha kana kudedera.
Zvisinei, mabheyaringi emhepo anewo musiyano wawo chaiwo. Zvakanaka, tsvaga sisitimu inoshandisa graphite ine maburi sechishandiso chekutakura panzvimbo pearuminiyamu. Graphite iri mumabheyaringi aya inobvumira mweya wakamanikidzwa kuti upfuure zvakananga nepakati pemaburi echisikigo ari mugraphite, zvichikonzera kuti mhepo ipararire zvakaenzana pamusoro pebheyaringi. Zvakare, jira remhepo rinogadzirwa nebheyaringi iri rakatetepa zvikuru - rinenge 0.0002″. Mabheyaringi ealuminium akajairwa, kune rumwe rutivi, anowanzova negomba remhepo riri pakati pe0.0010″ ne0.0030″. Gap diki remhepo rinodiwa nekuti rinoderedza katsika kemuchina kekusvetuka-svetuka pamuchina wemhepo uye rinoita kuti muchina uve wakasimba, wakarurama uye unodzokororwa.
Manual vs. DCC. Kusarudza kana uchida kutenga CMM yemaoko kana yeotomatiki zviri nyore. Kana nzvimbo yako huru yekugadzira iri yekugadzira, saka kazhinji muchina unodzorwa nekombiyuta zvakananga ndiyo sarudzo yako yakanakisa mune ramangwana, kunyangwe mutengo wekutanga uchave wakakwira. Manual CMM akakodzera kana achizoshandiswa zvakanyanya pakuongorora kwekutanga kana kuti pakugadzira reverse engineering. Kana ukaita zvese zviri zviviri uye usingade kutenga michina miviri, funga nezveDCC CMM ine madhiraivha eservo asingade kushandiswa, zvichibvumira kushandiswa nemaoko kana zvichidikanwa.
Sisitimu yekutyaira. Pakusarudza DCC CMM, tsvaga muchina usina hysteresis (backlash) musisitimu yekutyaira. Hysteresis inokanganisa zvakanyanya kurongeka kwenzvimbo yemuchina uye kudzokorora kwayo. Madhiraivha ekukweshana anoshandisa shaft yekutyaira yakananga ine band yekutyaira yakanyatsojeka, zvichikonzera zero hysteresis uye kuzununguka kushoma.
Nguva yekutumira: Ndira-19-2022