Vuam fixtures tuav qhov chaw nyob rau hauv qhov tseeb - tsis muaj kwv yees, tsis muaj rework. Thaum kev kam rau siab poob mus rau ± 0.1 hli thiab lub sijhawm voj voog xav tau rov ua dua hla 500+ units, cov pa jigs ua tsis tiav. Qhov ntawd yog qhov twg 3D vuam fixture Cov txheej txheem nkag mus rau hauv - tsis yog add-ons, tab sis raws li kev tsim kho txuas ntxiv ntawm cov vuam lub hom phiaj.
Vim li cas "3D" Hloov Cov Fixtures Yuav Ua Li Cas
Lub 3D vuam fixture tsis txhais los ntawm nws cov lej ntawm cov axes. Nws tau txhais los ntawm yuav ua li cas daws qhov teeb meem tiag tiag hauv ntiaj teb: cov ces kaum sib txuas hauv chassis brackets, nested flanges ntawm hydraulic manifolds, los yog ntau cov khoom sib dhos uas thermal expansion txawv ntawm txhuas thiab stainless hlau. Peb tau pom cov neeg siv khoom pov tseg 12% ntawm thawj cov khoom siv ua haujlwm vim tias cov khoom siv qub txeeg qub teg tsis tuaj yeem tswj xyuas qhov sib txawv ntawm lub pob ntseg khoov thiab lub laser-txiav mounting nto. Qhov kev kho tsis yog nruj dua clamps - nws yog ib qho kev sib koom ua ke uas kaw cov ntsiab lus hauv X, Y, * thiab * Z ib txhij.
Qhov tseeb 3D muaj peev xwm txhais tau peb yam hauv kev xyaum:
Modular puag daim hlau nrog precision-av T-slots thiab rov ua dua dowel tus pin qhov chaw (± 0.01 hli) Interchangeable locators- tsis yog tus pins thiab nres, tab sis qhov siab-kho qhov kev txhawb nqa, angular zes blocks, thiab ceev-hloov clamping caj npab nrog calibrated torque tuav Integrated reference geometry, yog li txhua feem zes tawm tsam tib lub dav hlau thawj datum, tsis tawm tsam lwm qhov tsis sib xws ntug Qhov no tsis yog theoretical. Hauv ib txoj haujlwm ua liaj ua teb, hloov los ntawm 2D tooling mus rau kev cai 3D fixture txiav weld distortion los ntawm 63% thiab txo cov sij hawm kho tom qab vuam los ntawm 18 feeb mus rau hauv qab 90 vib nas this ib subassembly.
Dab tsi ua kom haum haum - Tsis yog tuav xwb
Qee cov tuam txhab lag luam kho cov khoom siv raws li cov qauv zoo li qub. Peb kho lawv li dynamic txheej txheem enablers. Ib qho kev sib tw yuav tsum muaj sia nyob 5,000+ lub voj voog yam tsis tau poob qhov chaw ncaj ncees. Nws yuav tsum tso cai rau kev nkag mus rau MIG torches, robotic vuam taub hau, thiab kev soj ntsuam tom qab vuam-tsis tas yuav tsum tau disassembly. Thiab nws yuav tsum ntsuas: tib lub hauv paus phaj, cov chaw sib txawv, rau cov qauv ua haujlwm ntawm 15 units thiab ntau lawm batch ntawm 3,000.
Peb tau pom peb qhov tsis sib tham thaum lub sijhawm xa tawm tiag tiag:
Khoom ruaj khov: Tsis muaj cam khwb cia hlau puag uas warp tom qab rov qab thermal cycling. Peb siv 42CrMo4 alloy steel los yog anodized 7075-T6 txhuas-kuaj rau qhov ntev ntawm 80 ° C tshaj 72 teev Clamp quab yuam sib xws: Caij nplooj ntoos hlav-loaded clamps poob tuav; Cov pneumatic xav tau cov kab cua. Peb tus qauv siv cov hlau tawv tawv toggle clamps nrog cov khoom siv zoo-tsim pov thawj ntawm 12 kN tuav quab yuam, rov ua dua hauv ± 3% Kev pabcuam: Locators hnav. Pins tau nicked. Yog li txhua txhua 3D vuam fixture muaj xws li hloov hardened inserts-tsis machined-nyob rau hauv nta-thiab ib tug tag nrho BOM nrog txhuas lub sij hawm nyob rau hauv 72 teev. Ib tug North American Tier-1 automotive tsum tsis lees paub peb qhov kev thov thawj zaug vim tias lawv tus neeg hlau txoj kev npaj yuav tsum tau them TCP offsets. Peb embedded cov offsets ncaj qha mus rau hauv lub fixture CAD qauv-xa raws li STEP cov ntaub ntawv nrog GD&T callouts raws li lawv cov neeg hlau maub los tus tswj system. Lawv khiav thawj daim ntawv pov thawj hauv 4.2 teev.
Yuav ua li cas Precision pib ua ntej thawj Weld
Ib qho 3D vuam fixture tsis them rau kev tsim tsis zoo - nws nthuav tawm nws. Peb tau tshuaj xyuas ntau dua 200 tus neeg siv khoom kos duab qhov chaw weld seams hla cov kab khoov, ua rau micro-cracking hauv thaj chaw muaj kev ntxhov siab. Los yog qhov chaw kam rau siab ua rau lub rooj sib txoos zaum kawg tsis tuaj yeem - txawm tias txhua qhov dhau los ntawm tus neeg soj ntsuam.
Tias yog vim li cas peb kev txhawb nqa engineering pib * ua ntej * fixture fabrication:
DFM-tsav weld seam placement: Peb simulate tshav kub input tis thiab hais kom seam hloov chaw kom txo qis distortion - sau nrog thermal contour maps Datum zoo tshuaj xyuas: Puas yog koj thawj datum haum nrog machining chaw? Nrog casting parting kab? Nrog downstream CMM cov ntsiab lus tshuaj xyuas? Peb daim ntawv qhia tag nrho peb Fixture-to-process handoff: Peb muab tsis tau tsuas yog lub fixture, tab sis weld parameter nplooj ntawv validated ntawm zoo tib yam khoom thicknesses, muab tub lim hom, thiab sib koom geometries Tsis muaj "ib-size-fits-tag nrho" cov khoom siv. Txhua 3D vuam fixture peb tsim pib nrog koj qhov kev xav tau ua haujlwm-tsis yog peb cov lej catalog.
Cov txiaj ntsig tiag tiag, Tsis yog Benchmarks
Ntawm Botou Haijun Hlau Khoom Co., Ltd., peb sim fixtures nyob rau hauv load-tsis yog qhov hnyav li qub, tab sis simulated ntau lawm atherosclerosis. Lub fixture rated rau 3 hli me me hlau yuav tsum muaj tseeb los ntawm 100 sib law liag ntawm 120 ° C ambient kub, nrog 3-thib ob clamp actuation, thiab 15-thib ob weld nyob - tag nrho cov logged ntawm embedded strain gauges thiab thermal imaging.
Peb cov neeg siv khoom tshaj tawm cov txiaj ntsig zoo ib yam:
92% txo nyob rau hauv thawj tsab xov xwm haum-up kho Weld voj voog lub sij hawm compression ntawm 18-27%, txheeb xyuas los ntawm kev tshawb fawb lub sij hawm Scrap tus nqi poob los ntawm 4.7% mus rau 0.3% ntawm txoj kev sib dhos nrog ≥7 weld pob qij txha Peb tsis muag cov khoom siv. Peb xa rov ua dua- ntsuas hauv microns, taug qab hauv feeb, lav hauv kev sau ntawv. Vim tias thaum koj cov khoom txav mus los, nqa, lossis nqa cov khoom thauj, cov vuam tsis yog sib koom ua ke xwb. Nws yog lub hauv paus.
