Nyob rau hauv lub Hoobkas uas manufactures precision qhov chaw, lub XYZ precision gantry ncej yog zoo li ib tug "super plotter", muaj peev xwm ntawm meej txav ntawm lub micrometer los yog txawm nanometer scale. Lub hauv paus granite yog "lub rooj ruaj khov" uas txhawb nqa qhov "plotter". Lawv puas tuaj yeem "ua haujlwm hauv kev sib raug zoo" thaum ua ke ua ke? Hnub no, cia peb nthuav tawm qhov paub tsis meej hauv.
Vim li cas lawv thiaj hais tias yog "kev sib tw zoo meej"?
Granite tsis yog pob zeb zoo tib yam. Nws zoo li "hexagonal warrior" hauv ntiaj teb cov ntaub ntawv:
Koj muaj peev xwm ua poob siab yooj yim: Granite muaj qhov ntom heev, thiab nws txoj kev sab hauv yog zoo li "nruj jigsaw puzzle". Thaum lub gantry ncej txav nrawm thiab vibrates (ib yam li nws co thaum braking dheev thaum khiav), granite tuaj yeem nqus tau ntau dua 90% ntawm lub zog vibration, cia lub gantry ncej kom sai "sawv ruaj". Piv txwv li, thaum sib tsoo cov tsom iav qhov muag, tom qab siv lub hauv paus granite, qhov kev sib tw ntawm lub gantry ncej raug txo los ntawm 15 microns mus rau 3 microns, thiab qhov tseeb ntawm cov lo ntsiab muag tau zoo heev.
Tsis ntshai ntawm qhov kub thiab txias "kev cuam tshuam": Lub gantry ncej yuav sov tom qab ua haujlwm ntev. Cov ntaub ntawv zoo ib yam yuav "nthuav thiab deform" thaum rhuab, tab sis thermal expansion coefficient ntawm granite tsuas yog ib feem tsib ntawm cov hlau! Txawm hais tias qhov kub thiab txias hauv chav ua haujlwm hloov 10 ℃ hauv ib hnub, nws qhov deformation yuav luag tsis quav ntsej. Nws tuaj yeem txhawb nqa lub gantry ncej thiab xyuas kom meej tias qhov chaw yuam kev tsis pub dhau 2 microns.
Lawv puas yuav "muaj kev tsis sib haum xeeb"? Cov teeb meem no yuav tsum tau sau tseg!
Txawm hais tias lawv yog "zoo heev", yog tias tsis tau npaj zoo nyob rau theem pib, "kev tsis sib haum xeeb nrog ib puag ncig hauv zos" kuj tuaj yeem tshwm sim:
Kev txaj muag ntawm "interfaces tsis sib xws"
Cov sliders thiab cov lus qhia ntawm lub gantry ncej yuav tsum tau muab tso rau hauv lub qhov ntawm lub hauv paus. Yog hais tias qhov sib txawv ntawm lub qhov ntawm lub hauv paus tshaj 0.01 millimeters (thinner dua li tib neeg cov plaub hau), lub gantry ncej yuav tilted thaum ntsia thiab tau daig thaum tsiv. Ib yam li thaum cov pob qij txha ntawm cov jigsaw puzzle tsis sib xws, txawm tias koj sim nyuaj npaum li cas, nws tsuas yog tsis ua haujlwm.
Qhov phom sij zais ntawm "qhov hnyav mismatch"
Loj gantry thav duab yog hnyav thiab "muaj zog". Yog hais tias lub hauv paus granite tsis muaj zog txaus (nrog lub zog compressive qis dua 120 megapascals), nws yuav tawg nyob rau hauv lub sij hawm ntev hnyav. Qhov no zoo li txhawb nqa ib lub pob zeb loj nrog cov ceg me. Tsis ntev los no, nws yuav tawg.
Qhov teeb meem ntawm "asynchronous thermal expansion thiab contraction"
Lub degree uas hlau gantry ntas thiab granite nthuav thaum rhuab yog txawv. Nyob rau hauv ib puag ncig uas muaj qhov sib txawv ntawm qhov kub thiab txias, ob leeg tuaj yeem "sib tw" sib tw ua kom muaj kev ntxhov siab, ua rau cov khoom siv tsis ruaj khov, ib yam li cov khoom ua los ntawm cov khoom sib txawv "mus rau lawv tus kheej" ntawm qhov kub thiab txias.
Yuav ua li cas kom lawv "kev koom tes zoo kawg nkaus"?
Tsis txhob txhawj. Muaj kev daws teeb meem rau cov teeb meem no:
Tailor-made puag: Ntsuas qhov hnyav ntawm lub gantry thav duab, kev teeb tsa lub qhov thiab lwm yam ntaub ntawv ua ntej, thiab cia cov chaw tsim khoom kho lub hauv paus kom paub meej tias qhov yuam kev ntawm txhua qhov chaw tsis pub dhau 0.005 millimeters.
Txhim kho thiab txhim kho lub hauv paus: Xaiv cov granite uas muaj zog dua compressive (≥150 megapascals), thiab tseem tsim cov qauv honeycomb hauv lub hauv paus, ib yam li muv lub Hive, uas tsis yog tsuas yog txo qhov hnyav tab sis kuj txhawb nqa lub peev xwm.
Nruab "Tus Saib Xyuas Kub Kub": Ntxiv ib txheej ntawm cov roj hmab hloov tau yooj yim ntawm lub hauv paus thiab lub gantry ncej kom nqus tau cov thermal stress; Los yog nruab cov kav dej txias kom ua kom qhov kub thiab txias tsis pub dhau 1 ℃.
Post lub sij hawm: Jun-17-2025