Vuam tsis muaj jig lossis fixture zoo li sib sau cov rooj tog tsis muaj phau ntawv qhia - ua tau, tab sis pheej hmoo, tsis sib haum, thiab tsis tshua muaj rov ua dua. Nyob rau hauv high-mix, tsawg-rau-nruab nrab ntim ntau lawm-tshwj xeeb tshaj yog rau tsheb brackets, ua liaj ua teb linkage Cheebtsam, los yog siv cov khoom vaj tse-jig thiab fixture welding tsis xaiv tau. Nws yog tus txha caj qaum ntawm qhov seem stability, weld repeatability, thiab tus neeg teb xov tooj kev nyab xeeb.
Peb tau pom ntau tus neeg siv khoom xa khoom thawj zaug tsuas yog nrhiav tau 0.3 hli misalignment hauv lub qhov txuas tom qab thermal distortion. Lwm tus rework 18% ntawm cov welded sib dhos vim yog ib feem ntawm kev hloov thaum MIG hla. Cov no tsis yog "cov teeb meem txheej txheem." Lawv yog kho qhov khoob. Ntawm Botou Haijun Hlau Khoom Co., Ltd., peb tsim, siv tau, thiab xa cov kev cai vuam fixtures tsis yog add-ons-tab sis raws li kev txuas txuas ntxiv ntawm cov xov tooj ntawm tes nws tus kheej.
Yog vim li cas Off-the-Shelf Fixtures tsis nyob rau hauv tiag tiag Loads
Standard modular fixturing ua hauj lwm rau prototypes. Tab sis lub ntiaj teb tiag tiag jigs yuav tsum muaj sia nyob 5,000+ lub voj voog, tiv thaiv kev sib tsoo, nqus kev co los ntawm cov hluav taws xob hluav taws xob, thiab tuav ± 0.15 hli rov ua dua nyob rau hauv kev hloov pauv. Peb ib zaug tshawb xyuas tus neeg muag khoom Tier-2 uas nws "universal" fixture siv lub caij nplooj ntoos hlav-loaded clamps. Tom qab 472 lub voj voog, clamp quab yuam poob 33%. Weld nkag mus txawv los ntawm 22%. Lub hauv paus ua rau? Tsis muaj thermal expansion nyiaj them nyob rau hauv lub hauv paus phaj khoom.
Muaj tseeb jig thiab fixture welding cov kev daws teeb meem xav tau kev paub txog metallurgical - tsis yog txhua yam kev teeb tsa. Cold-dov steel puag warp nyob rau hauv lub zos tshav kub; aluminium subplates nthuav dav sai dua stainless workpieces; Txawm tias bolt torque sequence cuam tshuam rau ib feem nesting raug. Peb cov engineers suav thermal drift coefficients ua ntej txiav thawj phaj. Tias yog vim li cas txhua qhov teeb meem peb tsim suav nrog:
Cov khoom siv thermal ruaj khov (ASTM A572 Gr.50 lossis EN 10025 S355JR) Hardened nrhiav pins nrog ± 0.01 hli txoj kab uas hla kam rau ua Clamping quab yuam calibrated ib leeg geometry - tsis generic "siab / nruab nrab / qis" nqis Dedicated spatter shields uas mount * yam tsis muaj * cuam tshuam nrog lub teeb nkag cov ces kaum Thaum Vuam Fixtures dhau los ua ib feem ntawm koj cov txheej txheem DFM
Qee tus yuav sib cav: "Peb tsuas yog welding ua ntej, tom qab ntawd tshuab lub datum nto." Qhov ntawd ntxiv cov nqi, ncua sijhawm, thiab kev pheej hmoo seem. Ntawm Haijun, peb embed fixture logic rau thaum ntxov-theem Tsim rau Manufacturability tshuaj xyuas. Yog tias koj lub bracket muaj peb lub coplanar mounting qhov sib nrug 120 mm sib nrug - thiab yuav tsum tau 90 ° fillet welds ntawm ob lub flanges uas nyob ib sab - peb yuav chij tias qhov zoo tagnrho fixture yuav tsum nrhiav los ntawm qhov loj tshaj plaws tiaj tus * ua ntej *, tsis yog qhov tsawg tshaj plaws ntug. Vim li cas? Vim hais tias thaj chaw tiv thaiv txo deflection nyob rau hauv clamping load txog li 60% piv rau ntug-tsuas locators.
Qhov no tsis yog theoretical. Ib qho European kev ua liaj ua teb OEM txo lawv cov khoom siv tom qab vuam dhau los ntawm 82% mus rau 99.4% tom qab siv peb lub zeem muag-qhov chaw kho kom zoo. Lawv qhov kev teeb tsa thawj zaug siv dowel pins ntawm cov yam ntxwv thib ob. Peb lub tsheb thauj mus los rau lub vojvoog ntawm txoj hlua khi - qhov tsawg kawg cuam tshuam los ntawm lub caij nplooj ntoo hlav. Qhov tshwm sim? Kev ua haujlwm tsawg dua, nruj dua GD&T ua raws, thiab qhov ntev ntawm qhov ntev ntawm txhua qhov 14 vuam hla.
Yuav Ua Li Cas Peb Siv Cov Khoom Siv Ua Haujlwm-Ua Ntej Koj Txiav Hlau
Peb tsis cia siab rau qhov zoo li qub FEA ib leeg. Txhua qhov kev sib tw ua tiav peb theem kev ua tiav nyob:
Mock-up cycle test: Qhuav-khiav nrog cov neeg sawv cev ntawm tag nrho cov khoom ceev - ntsuas qhov chaw hnav, clamp qaug zog, thiab tus neeg teb xov tooj ncav cuag lub hnab ntawv Spatter resistance verification: 15 feeb ntawm kev simulated MIG welding siv cov xaim pub tus nqi tiag tiag thiab tiv thaiv cov roj sib xyaw - tom qab ntawd tshuaj xyuas kev sib tsoo ntawm qhov chaw tseem ceeb Thermal soak test: Tuav fixture ntawm 85 ° C rau 2 teev los simulate lub caij ntuj sov-hloov khw-hauv pem teb tej yam kev mob-xyuas tag nrho cov ntsiab lus datum nrog CMM Qhov kev qhuab qhia no piav qhia txog vim li cas peb cov neeg siv khoom tshaj tawm xoom qhov tsis sib xws hauv kev soj ntsuam zaum kawg hauv 27 lub hlis dhau los. Nws kuj txhais tau tias tsis muaj kev ua haujlwm tsis txaus ntseeg thaum ntsuas los ntawm 50 tus qauv qauv mus rau 2,000 / hli ntau lawm.
Los ntawm Fixture Design to Full-Welded Assembly-Ib Integrated Workflow
Vertical integration hloov txhua yam. Ntawm Haijun, tib pab pawg uas tsim koj lub vuam fittings kuj tseem ua haujlwm rau CNC xovxwm nres uas tsim ib feem, xaiv cov qib stainless rau corrosion kuj, thiab validates qhov kawg weld zog raws li ISO 15614-1. Tsis muaj handoffs. Tsis muaj kev txhais lus poob ntawm lub tuam tsev. Thaum koj lub bracket xav tau 3-mm fillet weld ntawm 0.8-mm aluminium flange, peb cov engineers fixture tham ncaj qha nrog peb cov kws tshaj lij vuam-vim lawv koom tib lub khw hauv pem teb.
Qhov ntawd yog li cas peb xa tag nrho-welded sib dhos nrog GD&T callouts tuav rau ± 0.2 hli-txawm tias ntawm qhov chaw nrog 12+ weld pob qij txha thiab cov khoom sib xyaw. Tsis muaj lwm tus neeg ua haujlwm subcontractors. Tsis kam rau stack-up surprises. Tsuas yog sau cov txheej txheem tswj, los ntawm raw coil mus rau crated xa khoom.
Rau manufacturers uas kho jig thiab fixture welding raws li engineering infrastructure-tsis siv tau cov cuab yeej-qhov sib txawv tshwm sim nyob rau hauv thawj-pass yield, teb tsis ua hauj lwm tus nqi, thiab cov neeg muas zaub. Precision tsis ua tiav hauv lub pas dej ua ke. Nws yog xauv nyob rau hauv ua ntej lub arc ntaus. Pib nrog txoj cai fixture. Tsim los ntawm qhov ntawd.
