Yuav ua li cas los tsim ib lub vuam fixture kom txo tau cov roller saw deformation?

Yuav ua li cas los tsim ib lub vuam fixture kom txo tau cov roller saw deformation?

Hauv kev tsim cov saw hlau, kev vuam yog ib qho txheej txheem tseem ceeb rau kev txuas cov txuas thiab ua kom muaj zog ntawm cov saw hlau. Txawm li cas los xij, kev hloov pauv ntawm cua sov thaum lub sijhawm vuam feem ntau ua rau muaj teeb meem tas mus li, cuam tshuam rau qhov tseeb ntawm cov khoom thiab kev ua tau zoo.cov saw hlautej zaum yuav muaj teeb meem xws li qhov txuas tsis sib xws, qhov sib txawv tsis sib xws, thiab qhov sib zog ntawm cov saw hlau tsis sib xws. Cov teeb meem no tsis yog tsuas yog txo qhov ua tau zoo ntawm kev sib kis xwb tab sis kuj ua rau hnav ntau dua, ua rau lub neej ua haujlwm luv dua, thiab ua rau cov khoom siv tsis ua haujlwm. Ua ib qho cuab yeej tseem ceeb rau kev tswj kev hloov pauv, kev tsim cov khoom siv vuam txiav txim siab qhov zoo ntawm kev vuam cov saw hlau. Tsab xov xwm no yuav tshuaj xyuas cov hauv paus ntawm kev hloov pauv ntawm cov saw hlau vuam thiab piav qhia txog yuav ua li cas kom ua tiav kev tswj kev hloov pauv los ntawm kev tsim cov khoom siv tshawb fawb, muab cov kev daws teeb meem rau cov kws tshaj lij tsim khoom.

Ua ntej, nkag siab: Dab tsi yog qhov ua rau lub hauv paus ntawm kev vuam hlau dov deformation?

Ua ntej tsim ib lub khoom siv, peb yuav tsum xub nkag siab txog qhov ua rau muaj kev hloov pauv ntawm cov hlau dov - kev tso tawm kev ntxhov siab los ntawm kev nkag mus tsis sib npaug thiab kev tswj tsis txaus. Cov txuas hlau dov feem ntau muaj cov phaj sab nraud thiab sab hauv, cov koob, thiab cov bushings. Thaum lub sijhawm vuam, cua sov hauv zos feem ntau yog siv rau kev sib txuas ntawm cov phaj, cov koob, thiab cov bushings. Cov laj thawj tseem ceeb ntawm kev hloov pauv thaum lub sijhawm no tuaj yeem sau ua ke raws li hauv qab no:

Kev faib tawm ntawm kev ntxhov siab thermal tsis sib npaug: Qhov kub siab uas tsim los ntawm qhov vuam arc ua rau cov hlau nthuav dav sai, thaum cov chaw tsis muaj cua sov ib puag ncig, vim lawv qhov kub qis dua thiab muaj zog dua, ua haujlwm ua qhov txwv, tiv thaiv cov hlau kub kom tsis txhob nthuav dav dawb thiab tsim kev ntxhov siab compressive. Thaum lub sijhawm txias, cov hlau kub yuav cog lus, uas raug cuam tshuam los ntawm cov chaw ib puag ncig, ua rau muaj kev ntxhov siab tensile. Thaum qhov kev ntxhov siab tshaj qhov yield point ntawm cov khoom, kev hloov pauv mus tas li tshwm sim, xws li cov txuas khoov thiab cov pins tsis sib xws.

Qhov tseeb ntawm qhov chaw ntawm cov khoom tsis txaus: Qhov sib txawv ntawm cov saw hlau thiab qhov sib txuas sib luag yog cov cim qhia qhov tseeb tseem ceeb. Yog tias qhov chaw ntawm cov khoom siv hauv lub cuab yeej tsis meej ua ntej vuam thiab lub zog clamping tsis ruaj khov, cov khoom siv yuav ua rau sab lossis ntev tsis sib xws raws li kev ntxhov siab thermal thaum vuam, ua rau muaj kev hloov pauv ntawm qhov sib txawv thiab kev sib txuas tsis zoo. Kev sib raug zoo tsis zoo ntawm cov txheej txheem vuam thiab lub cuab yeej: Kev vuam tsis raug tuaj yeem ua rau muaj cua sov hauv cov khoom siv, ua rau muaj kev hloov pauv hauv zos. Yog tias lub cuab yeej tsis muab cov kev txwv dynamic raws li cov txheej txheem vuam, kev hloov pauv yuav raug ntxiv.

Qhov thib ob, cov ntsiab cai tseem ceeb ntawm kev tsim cov khoom siv vuam: qhov chaw tseeb, kev clamping ruaj khov, thiab kev hloov pauv cua sov.

Muab cov yam ntxwv ntawm cov saw hlau (ntau yam khoom thiab cov phaj saw hlau nyias, yooj yim deformed) thiab cov kev xav tau vuam, kev tsim khoom siv yuav tsum ua raws li peb lub hauv paus ntsiab lus tseem ceeb los tswj kev deformation ntawm qhov chaw:

1. Lub Ntsiab Cai Unified Datum: Siv Cov Cim Qhia Txog Qhov Tseeb Tseem Ceeb ua Lub Datum Qhia Chaw

Qhov tseeb ntawm cov saw hlau yog qhov tseeb ntawm qhov siab thiab qhov sib luag ntawm cov phaj saw hlau, yog li ntawd, kev tsim qauv teeb tsa yuav tsum tsom mus rau ob qho cim no. Txoj kev teeb tsa "ib-dav hlau, ob-pin" yog qhov pom zoo: qhov chaw tiaj tus ntawm cov phaj saw hlau ua haujlwm ua qhov chaw tseem ceeb (txwv peb qib ntawm kev ywj pheej), thiab ob lub pins nrhiav chaw, sib phim nrog cov qhov pin (txwv ob thiab ib qib ntawm kev ywj pheej, feem), ua tiav qhov chaw tiav. Cov pins nrhiav chaw yuav tsum ua los ntawm cov hlau alloy uas tsis yooj yim hnav (xws li Cr12MoV) thiab quenched (hardness ≥ HRC58) kom ntseeg tau tias qhov tseeb ntawm qhov chaw tseem nyob txawm tias tom qab siv ntev. Qhov sib txawv ntawm cov pins nrhiav chaw thiab cov qhov pins phaj saw hlau yuav tsum khaws cia ntawm 0.02-0.05mm kom yooj yim clamping thiab tiv thaiv kev txav ntawm cov khoom thaum vuam.

2. Lub Ntsiab Cai Hloov Kho Lub Zog Clamping: "Txaus thiab Tsis Ua Rau Puas Tsuaj"

Kev tsim lub zog clamping yog qhov tseem ceeb rau kev sib npaug ntawm kev tiv thaiv kev hloov pauv thiab kev tiv thaiv kev puas tsuaj. Lub zog clamping ntau dhau tuaj yeem ua rau cov yas deformation ntawm lub phaj saw hlau, thaum tsawg dhau tuaj yeem cuam tshuam kev ntxhov siab ntawm kev vuam. Yuav tsum tau ua raws li cov kev xav tsim hauv qab no:

Lub clamping point yuav tsum tau muab tso rau qhov chaw kom zoo: ze rau thaj chaw weld (≤20mm ntawm qhov weld) thiab nyob rau hauv thaj chaw nruj ntawm lub phaj saw (xws li ze ntawm ntug ntawm lub qhov pin) kom tsis txhob khoov los ntawm lub zog clamping ua haujlwm hauv nruab nrab ntawm lub phaj saw. Lub zog Clamping Adjustable: Xaiv txoj kev clamping tsim nyog raws li lub thickness ntawm saw (feem ntau 3-8mm) thiab cov khoom siv (feem ntau yog cov hlau alloy xws li 20Mn thiab 40MnB). Cov txheej txheem no suav nrog pneumatic clamping (haum rau kev tsim khoom loj, nrog lub zog clamping adjustable ntawm lub zog regulator, xws li 5-15N) lossis ntsia hlau clamping (haum rau kev hloov kho me me, nrog lub zog clamping ruaj khov).
Kev Sib Txuas Yooj Yim: Ib lub gasket polyurethane (tuab 2-3 hli) raug siv rau thaj chaw sib txuas ntawm lub clamping block thiab saw. Qhov no ua rau muaj kev sib txhuam ntau ntxiv thaum tiv thaiv lub clamping block los ntawm kev nkag mus lossis khawb qhov chaw ntawm saw.

3. Lub hauv paus ntsiab lus ntawm kev sib xyaw ua ke ntawm cua sov: Kev sib phim cua sov ntawm lub clamp thiab cov txheej txheem vuam

Qhov kev vuam deformation feem ntau yog tshwm sim los ntawm kev faib cua sov tsis sib npaug. Yog li ntawd, lub clamp yuav tsum muab kev pab cuam cua sov dissipation, txo qhov kev ntxhov siab thermal los ntawm ob txoj hauv kev ntawm "active heat dissipation thiab passive heat conduction." Rau passive heat conduction, lub cev fixture yuav tsum ua los ntawm cov khoom siv uas muaj thermal conductivity siab, xws li aluminium alloy (thermal conductivity 202W/(m・K)) lossis tooj liab alloy (thermal conductivity 380W/(m・K)), hloov cov hlau cam khwb cia ib txwm (thermal conductivity 45W/(m・K)). Qhov no ua kom cov cua sov conduction sai dua hauv thaj chaw vuam. Rau kev faib cua sov active, cov kav dej txias tuaj yeem tsim nyob ze ntawm qhov vuam ntawm lub fixture, thiab cov dej txias circulating (dej tswj qhov kub ntawm 20-25 ° C) tuaj yeem qhia kom tshem tawm cov cua sov hauv zos los ntawm kev sib pauv cua sov, ua rau cov workpiece txias dua.

Qhov thib peb, Cov Tswv Yim Tseem Ceeb thiab Cov Lus Qhia Txog Kev Tsim Clamp kom Txo Tau Kev Hloov Pauv ntawm Cov Hlau Roller

Raws li cov ntsiab cai saum toj no, peb yuav tsum tsom peb txoj kev tsim qauv rau cov qauv thiab cov haujlwm tshwj xeeb. Plaub txoj hauv kev hauv qab no tuaj yeem siv ncaj qha rau hauv kev tsim khoom tiag tiag:

1. Cov Qauv Tso Chaw Modular: Hloov tau rau ntau yam Cov Lus Qhia Txog Cov Saw Hlau, Xyuas kom meej tias qhov chaw sib xws

Cov saw hlau muaj ntau yam kev qhia tshwj xeeb (piv txwv li, 08A, 10A, 12A, thiab lwm yam, nrog rau qhov siab txij li 12.7mm txog 19.05mm). Kev tsim cov khoom sib cais rau txhua qhov kev qhia tshwj xeeb yuav ua rau cov nqi thiab lub sijhawm hloov pauv ntau ntxiv. Peb pom zoo kom siv cov khoom sib dhos ua ke: Cov pins thiab blocks tau tsim los hloov tau thiab txuas nrog lub hauv paus ntawm cov khoom siv los ntawm bolts. Thaum hloov cov kev qhia tshwj xeeb, tsuas yog tshem tawm cov khoom qub thiab teeb tsa ib qho tshiab nrog qhov siab sib xws, txo lub sijhawm hloov pauv kom tsawg dua 5 feeb. Ntxiv mus, cov ntaub ntawv qhia chaw ntawm txhua yam khoom sib dhos yuav tsum sib phim nrog qhov chaw ntawm lub hauv paus ntawm cov khoom siv kom ntseeg tau tias qhov chaw raug rau cov saw hlau ntawm cov lus qhia sib txawv.

2. Kev Tsim Qauv Txwv Tsis Sib Xws: Kev Them Rov Qab rau "Kev Sib Cuam Tshuam" ntawm Kev Nyuaj Siab Vuam

Kev vuam cov saw hlau feem ntau yuav tsum muaj cov qauv sib npaug (piv txwv li, vuam ib lub pin rau ob lub saw hlau tib lub sijhawm). Yog li ntawd, lub cuab yeej yuav tsum siv cov qauv tsim kom sib npaug los txo qhov kev hloov pauv los ntawm kev daws teeb meem kev ntxhov siab. Piv txwv li, thaum lub sijhawm vuam ntawm ob lub saw hlau thiab lub pin, lub cuab yeej yuav tsum tau muab tso rau hauv qhov sib npaug nrog cov blocks thiab cov khoom siv clamping ntawm ob sab ntawm cov saw hlau kom ntseeg tau tias muaj kev sib xws ntawm cov cua sov thiab lub zog txwv. Ntxiv mus, ib lub thaiv txhawb nqa tuaj yeem muab tso rau hauv nruab nrab ntawm cov saw hlau, sib npaug nrog lub dav hlau ntawm cov saw hlau, kom txo qhov kev ntxhov siab khoov hauv nruab nrab thaum vuam. Cov ntaub ntawv siv tau qhia tias kev tsim kom sib npaug tuaj yeem txo qhov sib txawv ntawm cov saw hlau los ntawm 30% -40%.

3. Kev Txuas Ntxiv Dynamic: Kev Hloov Kho Rau Thermal Deformation Thaum Lub Sijhawm Vuam

Thaum lub sijhawm vuam, cov khoom ua haujlwm yuav raug hloov pauv me me vim yog kev nthuav dav thiab kev sib zog ntawm cua sov. Ib txoj kev clamping ruaj khov tuaj yeem ua rau muaj kev ntxhov siab ntau. Yog li ntawd, lub cuab yeej tuaj yeem tsim nrog lub tshuab clamping dynamic: lub sensor displacement (xws li lub sensor laser displacement nrog qhov tseeb ntawm 0.001mm) saib xyuas qhov deformation ntawm lub phaj saw hlau hauv lub sijhawm tiag tiag, xa cov teeb liab mus rau PLC tswj system. Lub cev muaj zog servo ces tsav lub clamping block rau kev kho me me (nrog rau qhov ntau thiab tsawg kho ntawm 0-0.5mm) kom tswj tau lub zog clamping tsim nyog. Qhov kev tsim no yog qhov tsim nyog tshwj xeeb rau kev vuam cov saw hlau tuab-phaj (tuab ≥ 6mm), zoo tiv thaiv cov saw hlau tawg los ntawm kev hloov pauv thermal.

4. Kev Tiv Thaiv Kev Sib Txuas Thiab Kev Tsim Qauv Qhia: Xyuas Kom Muaj Txoj Kev Sib Txuas Zoo Thiab Txo Qhov Chaw Uas Kub Cuam Tshuam
Thaum lub sijhawm vuam, qhov tseeb ntawm rab phom vuam txoj kev txav mus los cuam tshuam ncaj qha rau qhov zoo ntawm vuam thiab cua sov nkag. Lub cuab yeej yuav tsum tau nruab nrog lub qhov zawj tiv thaiv kab vuam thiab lub phom qhia vuam. Yuav tsum tsim ib lub qhov zawj tiv thaiv kab U (dav dua li ntawm kab vuam thiab tob 5-8 hli) ze ntawm kab vuam kom tiv thaiv kev cuam tshuam ntawm lub cuab yeej thiab rab phom vuam. Tsis tas li ntawd, yuav tsum tau teeb tsa ib txoj kab qhia saum lub cuab yeej kom ntseeg tau tias rab phom vuam txav mus los sib npaug raws txoj kev teeb tsa ua ntej (qhov ceev vuam ntawm 80-120mm / feeb yog qhov pom zoo), kom ntseeg tau tias qhov vuam ncaj thiab cua sov nkag mus sib npaug. Cov khoom siv rwb thaiv tsev ceramic kuj tseem tuaj yeem muab tso rau hauv qhov zawj tiv thaiv kom tiv thaiv cov khoom tawg ntawm cov vuam kom tsis txhob ua rau lub cuab yeej puas tsuaj.

Qhov thib plaub, Kev Txhim Kho thiab Kev Txheeb Xyuas Cov Khoom Siv: Kev Tswj Xyuas Kaw-Loop los ntawm Kev Tsim Qauv mus rau Kev Siv

Ib qho kev tsim qauv zoo yuav tsum tau ua kom zoo dua qub thiab xyuas kom meej ua ntej nws thiaj li siv tau tiag tiag. Peb kauj ruam hauv qab no tuaj yeem ua kom ntseeg tau tias qhov khoom siv siv tau tiag tiag thiab ntseeg tau:

1. Kev Tshawb Fawb Txog Kev Simulation Finite Element: Kwv yees Kev Hloov Pauv thiab Kev Txhim Kho Qhov Qauv

Ua ntej tsim cov khoom siv, kev sim ua kom muaj kev sib txuas thermal-structural coupling raug ua tiav los ntawm kev siv cov software finite element xws li ANSYS thiab ABAQUS. Kev nkag mus rau cov khoom siv roller saw hlau (xws li thermal expansion coefficient thiab elastic modulus) thiab cov txheej txheem vuam (xws li welding current ntawm 180-220A thiab voltage ntawm 22-26V) simulates qhov kub thiab txias faib tawm hauv cov khoom siv thiab workpiece thaum lub sijhawm vuam, kwv yees cov cheeb tsam deformation. Piv txwv li, yog tias qhov kev sim ua kom pom kev khoov deformation ntau dhau hauv nruab nrab ntawm lub phaj saw hlau, kev txhawb nqa ntxiv tuaj yeem ntxiv rau qhov chaw sib xws hauv cov khoom siv. Yog tias muaj kev ntxhov siab ntawm qhov chaw pin, lub pin's fillet radius tuaj yeem ua kom zoo dua (R2-R3 yog qhov pom zoo). Kev sim ua kom zoo dua tuaj yeem txo cov nqi sim thiab yuam kev ntawm cov khoom siv thiab ua kom luv lub voj voog kev tsim kho.

2. Kev Txheeb Xyuas Qhov Txuas Sib Txuas: Kev Sim Ua Ib Pawg Me thiab Kev Hloov Kho Dua

Tom qab ua tiav cov khoom siv lawm, sim ua qhov kev kuaj xyuas qhov vuam me me (pom zoo: 50-100 daim). Ua tib zoo saib cov cim qhia hauv qab no:

Qhov Tseeb: Siv lub tshuab tsom iav thoob ntiaj teb los ntsuas qhov sib txawv ntawm lub suab (yuav tsum yog ≤0.1 hli) thiab qhov sib luag ntawm cov phaj saw (yuav tsum yog ≤0.05 hli);

Kev Hloov Pauv: Siv lub tshuab ntsuas kev sib koom tes los luam theej duab qhov tiaj tiaj ntawm cov saw hlau thiab piv rau qhov hloov pauv ua ntej thiab tom qab vuam;

Kev Ruaj Ntseg: Tom qab vuam 20 daim tas li, xyuas cov khoom siv qhov chaw thiab cov clamping blocks kom paub tseeb tias lub zog clamping ruaj khov.

Raws li cov txiaj ntsig ntawm kev sim vuam, kev hloov kho rov ua dua rau lub cuab yeej, xws li kev kho lub zog clamping thiab kev ua kom zoo dua qhov chaw ntawm cov kav dej txias, kom txog thaum nws ua tau raws li qhov yuav tsum tau ua ntau lawm.

3. Kev Txij Nkawm thiab Kev Ntsuas Txhua Hnub: Kev Xyuas Kom Tseeb Mus Ntev

Tom qab lub tshuab ua haujlwm lawm, yuav tsum tsim kom muaj kev txij nkawm thiab kev ntsuas tas li:

Kev Txij Nkawm Txhua Hnub: Ntxuav cov weld spatter thiab cov roj stains ntawm qhov chaw ntawm lub fixture, thiab xyuas seb puas muaj qhov xau hauv cov pneumatic/hydraulic systems ntawm lub clamping device.

Kev Kho Txhua Lub Limtiam: Siv cov ntsuas ntsuas thiab cov ntsuas qhov ntsuas kom kho qhov tseeb ntawm cov koob nrhiav chaw. Yog tias qhov sib txawv tshaj 0.03 hli, kho lossis hloov lawv sai sai.

Kev Tshuaj Xyuas Txhua Hli: Xyuas cov kav dej txias kom paub seb puas muaj kev thaiv thiab hloov cov gaskets polyurethane uas puas lawm thiab cov khoom uas nrhiav tau.

Los ntawm kev saib xyuas tus qauv, lub neej ntawm cov khoom siv tuaj yeem ntev dua (feem ntau txog li 3-5 xyoos), kom ntseeg tau tias muaj kev tswj hwm kev hloov pauv zoo thaum lub sijhawm tsim khoom ntev.

Tsib, Kev Kawm Txog Cov Ntaub Ntawv: Kev Txhim Kho Cov Khoom Siv Hauv Lub Tuam Txhab Tshuab Hnyav

Ib lub chaw tsim khoom ntawm cov saw hlau hnyav (siv rau hauv cov tshuab khawb av) tau ntsib teeb meem nrog kev cuam tshuam ntau dhau (≥0.3mm) hauv cov txuas saw hlau tom qab vuam, ua rau tus nqi tsim nyog ntawm cov khoom tsuas yog 75%. Los ntawm kev txhim kho cov khoom siv hauv qab no, tus nqi dhau tau nce mus txog 98%:

Kev txhim kho qhov chaw: Tus thawj ib tus pin nrhiav tau hloov nrog lub "ob lub pin + tiaj tiaj" qhov chaw, txo qhov chaw kom txog 0.03 hli thiab daws qhov teeb meem ntawm qhov chaw;

Kev ua kom sov sov zoo dua: Lub cev khoom siv yog ua los ntawm tooj liab thiab muaj cov kav dej txias, ua rau kom txias dua hauv thaj chaw vuam los ntawm 40%;

Kev clamping dynamic: Lub sensor hloov chaw thiab servo clamping system tau teeb tsa los kho lub zog clamping hauv lub sijhawm tiag tiag kom tsis txhob muaj kev ntxhov siab;

Cov kev txwv sib npaug: Cov blocks clamping sib npaug thiab cov blocks txhawb nqa tau teeb tsa rau ob sab ntawm cov saw hlau kom txo qhov kev ntxhov siab vuam.

Tom qab kev txhim kho, qhov sib txawv ntawm lub suab ntawm cov saw hlau raug tswj tsis pub dhau 0.05 hli, thiab qhov kev cuam tshuam yog ≤0.1 hli, ua tau raws li cov neeg siv khoom xav tau siab.

Xaus Lus: Kev tsim cov khoom siv yog "kab tiv thaiv thawj zaug" rau qhov zoo ntawm kev vuam cov saw hlau.

Kev txo qhov kev hloov pauv ntawm cov hlau txuas tsis yog ib qho teeb meem ntawm kev ua kom zoo dua ib kauj ruam xwb, tab sis yog ib qho txheej txheem uas muaj kev teeb tsa, kev clamping, kev tso cua sov tawm, kev ua tiav, thiab kev saib xyuas, nrog rau kev tsim cov khoom siv vuam ua lub hauv paus tseem ceeb. Txij li cov qauv kev teeb tsa ua ke, mus rau kev tswj hwm lub zog clamping hloov kho tau, mus rau kev tsim qauv yooj ywm ntawm kev ua raws li qhov hloov pauv, txhua qhov me me cuam tshuam ncaj qha rau qhov cuam tshuam ntawm kev hloov pauv.