Izinto zokwakha ezizinzile. Qiniseka ukuthi amalungu aphansi wokwakhiwa komshini aqukethe izinto ezingathathwa kalula ekuhlukanisweni kwezinga lokushisa. Cabanga ngebhuloho (umshini we-X-axis), ibhuloho lisekela, umhlahlandlela wesitimela (umshini y-axis), i-bearings kanye nebha ye-axis ye-Z-axis. Lezi zingxenye zithinta ngqo izilinganiso zomshini kanye nokunemba kokuthambekela, futhi kwakha izingxenye zangaphansi ze-CMM.
Izinkampani eziningi zenza lezi zingxenye ziphume nge-aluminium ngenxa yesisindo sazo esikhanyayo, imishini yokukhanyisa kanye nezindleko eziphansi. Kodwa-ke, izinto ezinjenge-granite noma i-ceramic zingcono kakhulu kuma-CMMS ngenxa yokuzinza kwakho okushisayo. Ngokungeziwe eqinisweni lokuthi i-aluminium inwebisa cishe amahlandla amane ngaphezu kwe-granite, i-granite ine-vibration ephakeme yokudangala futhi inganikeza indawo enhle kakhulu yokuqedela indawo ama-bearings angahamba ngayo. Empeleni, i-Granite ibe yindinganiso eyamukelwa kabanzi yokulinganisa iminyaka.
Kwama-CMMS, noma kunjalo, i-Granite inokubuya okukodwa - kunzima. I-dilemma izokwazi, kungaba ngesandla noma nge-servo, ukuhambisa i-cmm yama-granite azungeze izimbazo zayo ukuze athathe izilinganiso. Inhlangano eyodwa, i-LS Starrett Co, ithole isixazululo esijabulisayo sale nkinga: ubuchwepheshe obungenalutho lwe-granite.
Lobu buchwepheshe busebenzisa amapuleti aqinile ama-granite kanye nemishayo ekhiqizwayo futhi yahlangana ukuze kwakhiwe amalungu ahlelekile. Lezi zinhlaka eziyize zinesisindo esifana ne-aluminium ngenkathi zigcina izici ezinhle zika-granite. IStarrett isebenzisa lobu buchwepheshe kuzo zombili amalungu ebhuloho nezokusekelwa kwebhuloho. Ngendlela efanayo, basebenzisa ubumba obuyize belibhuloho kuma-CMMS amakhulu lapho uGranite ongenalutho alunakwenzeka.
Amabombo. Cishe bonke abakhiqizi be-CMM bashiye amasistimu amadala e-roller-ethrepha ngemuva, ekutholeni amasistimu wokuthwala umoya omkhulu. Lezi zinhlelo azidingi ukuxhumana phakathi kokuthwala kanye nomhlaba othwala ngesikhathi sokusebenzisa, okuholela ekugqokeni kwe-zero. Ngokwengeziwe, izimbotshana zomoya azinazo izingxenye ezinyakazayo ngakho-ke, akukho msindo noma ukunyakaza.
Kodwa-ke, amabhera amoya nawo anomehluko wawo wemvelo. Ngokufanelekile, funa uhlelo olusebenzisa i-porous graphite njengezinto zokuthwala esikhundleni se-aluminium. I-graphite kuleyo thwala ivumela umoya ocindezelwe ukuthi adlule ngokuqondile nge-porsolity yemvelo ezungeza i-graphite, okuholela engxenyeni yomoya ehlakazekile kakhulu ngaphesheya komphezulu. Futhi, ungqimba lomoya olukhiqizwayo le mncane kakhulu - cishe ngo-0.0002 ". I-Aluminium Bearings evamile evamile, ngakolunye uhlangothi, imvamisa inegebe yomoya phakathi kuka-0.0010 "no-0.0030". Igebe elincane lomoya lithandwa ngoba linciphisa ukuthambekela komshini wokugxuma emshinini womoya futhi kuphumela emshinini oqinile, onembile futhi ophindaphindwayo.
Ngesandla vs. dcc. Ukunquma ukuthi uzothenga i-CMM yezandla noma okuzenzakalelayo kuqondile impela. Uma imvelo yakho yokuqala yezokukhiqiza igxile ekukhiqizweni, imvamisa umshini olawulwa yikhompyutha oqondile uyindlela yakho engcono kakhulu ngokuhamba kwesikhathi, yize izindleko zokuqala zizoba ngaphezulu. I-Manual CMMS ilungele uma izosetshenziswa ikakhulukazi ngomsebenzi wokuhlola i-athikili yokuqala noma ubunjiniyela obuhle. Uma wenza okuncane kakhulu kokubili futhi ungafuni ukuthenga imishini emibili, cabanga nge-DCC cmm enezishayeli ze-servo ezingenamkhawulo, okuvumela ukusetshenziswa ngesandla lapho kudingeka.
Uhlelo lwe-drive. Lapho ukhetha i-DCC cmm, funa umshini ongenaye nge-hysteresis (i-backlash) ohlelweni lweDrayivu. I-Hysteresis ithinta ukunemba kokuma komshini nokuphindaphindwa komshini. Ukushayela kwe-Charriction Kusetshenziswa Shaft eqondile yokushayela nge-Precision Drive Band, okuholela ku-zero hysteresis kanye nokudlidliza okuncane
Isikhathi Sokuposa: Jan-19-2022