Laser scanner, tseem hu ua laser galvanometer, muaj XY optical scanning lub taub hau, hluav taws xob tsav amplifier thiab optical reflection lens. Lub teeb liab muab los ntawm lub koos pij tawj tswj tau tsav lub taub hau kho qhov muag los ntawm kev tsav tsheb amplifier Circuit Court, yog li tswj cov deflection ntawm laser beam hauv XY dav hlau. Hais lus yooj yim, galvanometer yog ib qho scanning galvanometer siv hauv kev lag luam laser. Nws cov lus tshaj lij yog hu ua high-speed scanning galvanometer Galvo scanning system. Lub thiaj li hu ua galvanometer kuj tseem hu ua ammeter. Nws lub tswv yim tsim ua tiav raws li tus qauv tsim ntawm ammeter. Lub lens hloov lub koob, thiab lub teeb liab ntawm qhov kev sojntsuam yog hloov los ntawm lub computer tswj -5V-5V lossis -10V-+10V DC teeb liab. , ua kom tiav qhov kev txiav txim ua ntej. Zoo li lub rotating daim iav scanning system, qhov no raug tswj system siv ib khub ntawm retracting iav. Qhov txawv yog tias lub cev muaj zog stepper uas tsav lub teeb ntawm lo ntsiab muag yog hloov los ntawm servo lub cev muaj zog. Nyob rau hauv qhov kev tswj hwm no, ib txoj hauj lwm sensor yog siv Lub tswv yim tsim ntawm thiab tsis zoo tawm tswv yim voj ntxiv kom paub tseeb qhov tseeb ntawm lub kaw lus, thiab scanning ceev thiab rov ua dua qhov tseeb ntawm tag nrho cov kab ke mus txog qib tshiab. Lub galvanometer scanning marking lub taub hau yog tsim los ntawm XY scanning daim iav, teb lo ntsiab muag, galvanometer thiab computer-controlled marking software. Xaiv cov khoom siv kho qhov muag sib xws raws li qhov sib txawv laser wavelengths. Lwm yam kev xaiv kuj muaj xws li laser beam expanders, lasers, thiab lwm yam nyob rau hauv lub laser ua qauv qhia system, lub waveform ntawm optical scanning yog ib tug vector scan, thiab scanning ceev ntawm lub system txiav txim siab stability ntawm lub laser qauv. Nyob rau hauv xyoo tas los no, high-speed scanners tau tsim, nrog scanning speeds mus txog 45,000 cov ntsiab lus / thib ob, ua rau nws muaj peev xwm ua kom pom kev nyuaj laser animations.
5.1 Laser galvanometer vuam sib koom ua ke
5.1.1 Txhais thiab muaj pes tsawg leeg ntawm galvanometer vuam sib koom:
Lub collimation tsom lub taub hau siv cov cuab yeej siv tshuab ua lub platform txhawb nqa. Cov cuab yeej siv tshuab txav mus los kom ua tiav cov vuam sib txawv ntawm qhov sib txawv. Qhov tseeb vuam yog nyob ntawm qhov tseeb ntawm tus actuator, yog li muaj teeb meem xws li qhov tseeb tsawg, qeeb teb ceev, thiab inertia loj. Lub galvanometer scanning system siv lub cev muaj zog los nqa lub lens rau deflection. Lub cev muaj zog yog tsav los ntawm qee qhov tam sim no thiab muaj qhov zoo ntawm qhov siab precision, me me inertia, thiab cov lus teb ceev ceev. Thaum lub teeb pom kev zoo ntawm lub lens galvanometer, lub deflection ntawm lub galvanometer hloov lub laser beam. Yog li ntawd, lub laser beam yuav luam theej duab tej trajectory nyob rau hauv lub scanning teb los ntawm lub galvanometer system.
Lub ntsiab Cheebtsam ntawm lub galvanometer scanning system yog beam expansion collimator, tsom lens, XY ob-axis scanning galvanometer, tswj board thiab host computer software system. Lub scanning galvanometer feem ntau yog hais txog ob lub XY galvanometer scanning hau, uas tau tsav los ntawm kev kub ceev reciprocating servo motors. Lub dual-axis servo system tsav lub XY dual-axis scanning galvanometer kom deflect raws X-axis thiab Y-axis feem los ntawm kev xa cov lus txib mus rau X thiab Y-axis servo motors. Nyob rau hauv txoj kev no, los ntawm kev sib koom ua ke ntawm XY ob-axis daim iav lens, kev tswj hwm tuaj yeem hloov lub teeb liab los ntawm galvanometer board raws li preset graphic template ntawm tus tswv tsev computer software raws li txoj kev teeb tsa, thiab txav mus sai sai. workpiece dav hlau los tsim ib tug scanning trajectory.
5.1.2 Kev faib tawm ntawm galvanometer vuam pob qij txha:
1. Pem hauv ntej tsom tsom iav lens
Raws li kev sib raug zoo ntawm lub lens tsom thiab lub laser galvanometer, hom scanning ntawm lub galvanometer tuaj yeem muab faib ua rau pem hauv ntej tsom xam (Daim duab 1 hauv qab) thiab rear focusing scanning (Daim duab 2 hauv qab). Vim tias muaj qhov sib txawv ntawm txoj kev kho qhov muag thaum lub laser beam deflected mus rau qhov sib txawv (qhov kev sib kis ntawm kab sib txawv), lub laser focal nto thaum lub sij hawm yav dhau los focusing hom scanning txheej txheem yog ib tug hemispherical nto, raws li qhia nyob rau hauv lub sab laug daim duab. Cov txheej txheem post-focus scanning yog qhia nyob rau hauv daim duab ntawm sab xis. Lub hom phiaj lens yog F-plam lens. F-plam daim iav muaj qhov tshwj xeeb kho qhov muag tsim. Los ntawm kev qhia txog kev kho qhov muag, lub hemispherical focal nto ntawm lub laser beam tuaj yeem hloov kho kom tiaj tus. Post-focus scanning yog tsim nyog rau cov ntawv thov uas yuav tsum tau ua kom raug thiab ua haujlwm me me, xws li laser npav, laser microstructure vuam, thiab lwm yam.
2.rear focusing scanning lens
Raws li cheeb tsam scanning nce, lub aperture ntawm f-theta lens kuj nce. Vim muaj kev txwv kev thiab cov khoom siv, qhov loj-aperture f-theta lo ntsiab muag yog kim heev thiab cov tshuaj no tsis tau txais. Lub hom phiaj ntawm lub lens pem hauv ntej galvanometer scanning system ua ke nrog rau 6-axis neeg hlau yog ib qho kev daws teeb meem, uas tuaj yeem txo qhov kev vam khom ntawm cov khoom siv galvanometer, muaj ntau qib ntawm qhov raug, thiab muaj kev sib raug zoo. Qhov kev daws teeb meem no tau txais los ntawm ntau tus neeg koom ua ke. Txais, feem ntau hu ua davhlau vuam. Kev vuam ntawm module busbar, nrog rau kev tu ncej, muaj cov ntawv thov dav hlau, uas tuaj yeem ua kom qhov dav ua tau yooj yim thiab ua tau zoo.
3.3D Galvanometer:
Txawm hais tias nws yog kev tsom mus rau pem hauv ntej lossis rov qab tsom mus rau scanning, lub teeb pom kev ntawm lub teeb laser tsis tuaj yeem tswj tau rau kev tsom mus rau dynamic. Rau pem hauv ntej tsom xam scanning hom, thaum lub workpiece yuav tsum tau ua me me, lub tsom iav tsom iav muaj ib tug tej yam focal tob ntau yam, yog li nws muaj peev xwm ua tau tsom scanning nrog ib tug me me hom. Txawm li cas los xij, thaum lub dav hlau yuav tsum tau soj ntsuam yog loj, cov ntsiab lus nyob ze ntawm lub periphery yuav tsis ua kom pom tseeb thiab tsis tuaj yeem tsom rau ntawm qhov chaw ntawm lub workpiece yuav tsum tau ua tiav vim tias nws tshaj qhov tob ntawm lub laser tsom. Yog li ntawd, thaum lub laser beam yuav tsum tau teem kom zoo nyob rau hauv txhua txoj hauj lwm ntawm lub scanning dav hlau thiab lub teb ntawm saib yog loj, kev siv ntawm ib tug ruaj focal ntev lens tsis tau raws li cov kev cai scanning. Lub dynamic focusing system yog cov txheej txheem kho qhov muag uas nws qhov focal ntev tuaj yeem hloov tau raws li qhov xav tau. Yog li ntawd, cov kws tshawb fawb tau tawm tswv yim siv lub teeb tsom tsom teeb pom kev zoo kom them nyiaj rau qhov sib txawv ntawm qhov pom kev sib txawv, thiab siv lub lens concave (beam expander) kom txav mus rau linearly raws qhov kho qhov muag axis los tswj txoj hauj lwm ua kom pom tseeb thiab ua tiav cov txheej txheem dynamically compensates rau optical. txoj kev sib txawv ntawm txoj haujlwm sib txawv. Piv nrog rau 2D galvanometer, qhov muaj pes tsawg leeg ntawm 3D galvanometer feem ntau ntxiv "Z-axis kho qhov muag", yog li ntawd 3D galvanometer tuaj yeem hloov pauv txoj haujlwm tseem ceeb thaum lub vuam txheej txheem thiab ua spatial curved nto vuam, tsis tas yuav hloov pauv. cov cab kuj xws li cov cuab yeej siv tshuab, thiab lwm yam zoo li 2D galvanometer. Qhov siab ntawm tus neeg hlau yog siv los kho qhov vuam tsom qhov chaw.
Post lub sij hawm: May-23-2024
