Qhov kev tshawb fawb no tsom rau kev ua kom zoo dua qhov tsis siv neeg clamping thiab kev soj ntsuam hauv online hauv precision machining ntawm complex curved nto. Kev txhawb nqa ruaj khov rau qhov yog ua tiav los ntawm kev tsim lub hauv paus phaj tsim cov punch, thiab tiag tiag - lub sijhawm tshuaj xyuas qhov chaw ua tiav siv sab - lub taub hau ntsuas tshuab, yog li tsim lub kaw - voj tswj qhov system rau machining raug. Kev sib piv cov txiaj ntsig tau pom tias qhov ua kom zoo tshaj plaws tsis siv neeg clamping thiab kev tshuaj xyuas hauv online ua ke tuaj yeem txo qhov deformation hauv cheeb tsam ntawm 0.15mm txog 0.05mm, txhim kho qhov tseeb ntawm machining kwv yees li 66%, thiab ua tiav qhov tseem ceeb ntawm qhov ntsuas qhov ntsuas ntawm ntau dua 95%. Lub tswv yim kev sib koom tes optimization lub tswv yim muab cov txheej txheem ntau npaum li cas thiab cov txheej txheem siv tau rau kev ua haujlwm nyuaj ntawm qhov chaw nkhaus, thiab muaj daim ntawv thov siab thiab nce nqi.
01
Taw qhia
Qhov kev tshawb fawb no tsom rau kev ua kom zoo dua qhov tsis siv neeg clamping thiab kev soj ntsuam hauv online hauv precision machining ntawm complex curved nto. Kev txhawb nqa ruaj khov rau qhov yog ua tiav los ntawm kev tsim lub hauv paus phaj tsim cov punch, thiab tiag tiag - lub sijhawm tshuaj xyuas qhov chaw ua tiav siv sab - lub taub hau ntsuas tshuab, yog li tsim lub kaw - voj tswj qhov system rau machining raug. Kev sib piv cov txiaj ntsig tau pom tias qhov ua kom zoo tshaj plaws tsis siv neeg clamping thiab kev tshuaj xyuas hauv online ua ke tuaj yeem txo qhov deformation hauv cheeb tsam ntawm 0.15mm txog 0.05mm, txhim kho qhov tseeb ntawm machining kwv yees li 66%, thiab ua tiav qhov tseem ceeb ntawm qhov ntsuas qhov ntsuas ntawm ntau dua 95%. Txoj kev sib koom tes ua kom zoo tshaj plaws uas tau npaj tseg hauv txoj kev tshawb no muab cov txheej txheem ntau npaum li cas thiab cov txheej txheem siv tau rau kev ua haujlwm nyuaj ntawm qhov chaw nkhaus, thiab muaj kev thov siab thiab nce nqi.
02
Tsis siv neeg clamping txheej txheem optimization rau precision machining ntawm complex nkhaus nto
2.1 Tsim cov qauv ntawm qhov tsis siv neeg clamping system
Nyob rau hauv cov txheej txheem machining ntawm complex nkhaus nto qhov chaw, clamping quab yuam, fixture rigidity thiab positioning raug ncaj qha cuam tshuam rau℃ntawm deformation thiab machining zoo ntawm cov khoom. Tsim nyog clamping quab yuam yuav tsum tau coj mus rau hauv tus account ob lub machining stability thiab kev ntxhov siab tswj ntawm qhov chaw, xyuas kom meej tias cov khoom tsis hloov thaum lub sij hawm txiav, thiab tsis txhob deformation los ntawm lub zos kev nyuaj siab concentration. Qhov siab dua qhov rigidity ntawm lub fixture, qhov zoo dua cov duab tuav ntawm qhov chaw nyob rau hauv qhov kev txiav txim ntawm txiav quab yuam, thiab siab dua qhov sib txuam℃nrog rau qhov tseeb ntawm qhov chaw machining chaw, yog li ua kom ntseeg tau qhov sib xws thiab qhov tseeb qhov tseeb thaum rov ua cov txheej txheem nkhaus. Lub automated clamping system ua tiav qhov chaw nrawm thiab kho lub zog clamping los ntawm lub caj npab lossis lub tshuab hluav taws xob, thiab tuaj yeem hloov kho lub xeev clamping raws li cov yam ntxwv ntawm cov khoom thiab cov txheej txheem machining, txhim kho kev tsim khoom thaum txhim kho machining stability, uas yog lub hauv paus kev txhais tau tias rau precision machining ntawm complex curved nto [1] . 2.2 Kev tsim thiab kev ua haujlwm P.
Lub hauv paus phaj tsim cov punch plays lub luag hauj lwm dual hauv kev txhawb nqa thiab muab txoj hauv kev nkhaus nto machining. Nws hom qauv thiab kev tsim qauv ncaj qha txiav txim siab qhov kev ruaj ntseg clamping thiab ib feem ntawm machining raug (saib daim duab 1). Punch tsim yuav tsum muaj kev xav txog qhov nruj, qhov chaw bearing, thiab kev sib cuag sib txuas. Ib qho tsim nyog punch qauv tuaj yeem tiv thaiv warping deformation thiab lub zos distortion ntawm ib feem thaum lub sij hawm machining. Los ntawm kev txheeb xyuas qhov cuam tshuam ntawm cov phiaj xwm sib txawv ntawm qhov deformation thiab clamping quab yuam kev faib tawm, cov kev taw qhia ntawm cov qauv punch optimization tuaj yeem qhia meej, xws li nce tus naj npawb ntawm cov punch txhawb cov ntsiab lus thiab kho qhov kev sib cuag interface, kom ua tiav qhov tsawg kawg nkaus deformation thiab quab yuam sib npaug. Qhov kev tsim kho kom zoo no tsis yog tsuas yog txhim kho kev tswj hwm ntawm cov txheej txheem machining tab sis kuj muab qhov ntsuas ntsuas ruaj khov rau kev tshuaj xyuas online tom ntej, tso lub hauv paus rau kev sib xyaw ua ke thiab tshuaj xyuas.
Daim duab 1: Schematic daim duab ntawm lub hauv paus phaj txoj kev punch
2.3 Clamping Process Optimization Strategy
Cov txheej txheem clamping feem ntau vam khom los yog hloov kho phau ntawv, uas yog qhov nyuaj rau hloov mus rau qhov sib txawv ntawm cov kev xav tau ntawm txoj kev nkhaus nkhaus, yooj yim ua rau lub zos deformation thiab tsub zuj zuj ntawm machining yuam kev. Hauv kev sib piv, automated clamping thev naus laus zis ua tiav kev txhawb nqa ruaj khov thoob plaws tag nrho cov txheej txheem machining los ntawm kev sib koom ua kom zoo ntawm clamping quab yuam tsis, fixture rigidity, thiab puag phaj punch qauv. Lub optimized automated clamping scheme tuaj yeem sib npaug ntawm cov clamping quab yuam faib, txo ib feem warping deformation, thiab ho txhim kho machining raug thiab repeatability. Nyob rau tib lub sijhawm, los ntawm kev txhim kho lub tswv yim zoo, qhov kev pom zoo clamping tsis sib xws rau cov qauv sib txawv thiab cov txheej txheem machining tuaj yeem raug txheeb xyuas kom meej, muab lub hauv paus kev tshawb fawb rau kev tswj hwm ntawm cov txheej txheem machining thiab txhim kho cov txheej txheem kev ntseeg siab ntawm precision machining ntawm complex curved nto.
03
Integrated Online Inspection thiab Machining Process Analysis
3.1 Tsim Cov Ntsiab Cai ntawm Kev Tshawb Fawb Online
Kev sojntsuam ntsuas yog cov thev naus laus zis tseem ceeb rau kev ua tiav siab -kev soj ntsuam hauv online hauv kev ua kom zoo ntawm cov npoo nkhaus. Qhov kev sojntsuam (saib daim duab 2) tshuaj xyuas qhov chaw nto los ntawm kev sib cuag sab nraud lossis tsis yog -txoj kev sib cuag los ua kom tiav qhov tiag - lub sijhawm tau txais cov ntaub ntawv saum npoo av. Kev sojntsuam layout tsim yuav tsum tau xav txog tag nrho cov geometry, machining qhov chaw txwv, thiab clamping lub xeev kom ntseeg tau tias qhov kev sojntsuam tuaj yeem npog tag nrho cov chaw machining tseem ceeb thaum tsis txhob cuam tshuam nrog cov cuab yeej machining thiab fixtures. Ib qho kev sojntsuam tsim nyog tuaj yeem muab cov ntaub ntawv ntsuas ruaj khov thiab tsis tu ncua, muab lub hauv paus txhim khu kev qha rau kev tswj xyuas zoo ntawm machining zoo. Daim duab 2 Kev soj ntsuam online ntawm kev soj ntsuam sib txawv muaj lawv tus kheej zoo hauv kev ua cov ntawv thov. Cov kev sojntsuam tiv tauj muaj qhov ntsuas qhov tseeb, tab sis qhov ntsuas nrawm yog txwv, thiab lawv muaj feem cuam tshuam rau lub zog quab yuam hauv zos ntawm nyias- cov phab ntsa lossis qhov hloov tau yooj yim. Tsis yog-txoj kev sib cuag xws li laser scanning thiab kho qhov muag scanning muaj kev ntsuas ceev ceev thiab muaj zog yoog raws, tab sis lawv tau cuam tshuam zoo heev los ntawm cov yam ntxwv ntawm lub ntsej muag thiab lub suab nrov ntawm qhov chaw. Cov ntaub ntawv tau txais cov txheej txheem yuav tsum tau ua ke tiag tiag- lub sijhawm ua cov txheej txheem los hloov cov ntaub ntawv ntsuas thawj rau hauv cov ntaub ntawv sib txawv ntawm geometric, thiab dynamically kho cov txheej txheem ua los ntawm kev tawm tswv yim logic kom paub kaw- voj tswj ntawm kev ua thiab tshuaj xyuas, yog li txhim kho cov txheej txheem raug thiab kev ntseeg tau ntawm {7} complex{7} Kev ua haujlwm-Kev tshuaj xyuas kev sib xyaw ua ke hauv online kev tshuaj xyuas tuaj yeem saib xyuas lub xeev geometric ntawm cov khoom hauv lub sijhawm ntawm kev ua haujlwm, kuaj xyuas cov txheej txheem sib txawv raws sijhawm thiab qhia txog kev hloov pauv ntawm cov txheej txheem ua haujlwm, txhim kho kev ua tiav ntawm cov txheej txheem nkhaus. Kev sojntsuam layout yuav tsum tau ua ke nrog txoj haujlwm clamping thiab curvature faib cov yam ntxwv ntawm cov khoom, tsom mus rau npog qhov yuam kev rhiab heev. Cov kev tshawb fawb tau pom tias qhov kev sojntsuam tsim nyog tuaj yeem txo qhov kev pom qhov muag tsis pom qhov chaw, txhim kho qhov tseeb ntawm qhov sib txawv ntawm qhov chaw tau txais, muab lub hauv paus raug rau kev ua haujlwm yuam kev, thiab yog li paub txog kev sib koom tes ntawm kev ua haujlwm thiab kev tshuaj xyuas. Machining yam tsis muaj kev tshuaj xyuas hauv online tsis tuaj yeem tshawb pom machining deviations raws sijhawm, thiab kev kho phau ntawv tau ua rau qhov raug tsawg. Thaum kev tshuaj xyuas offline tuaj yeem ua tiav qhov yuam kev calibration, nws raug kev txom nyem los ntawm lub sijhawm lag luam tseem ceeb, yooj yim ua rau kev ua yuam kev. Kev tshuaj xyuas online, los ntawm qhov tseeb - lub sij hawm tawm tswv yim tsim lub kaw - voj tswj, tuaj yeem hloov kho txoj kev txiav los yog lub xeev clamping, tsis yog tsuas yog txo cov kev ua haujlwm yuam kev tab sis kuj tseem txhim kho kev tsim khoom thiab qhov sib xws, muab kev txhawb nqa theoretical thiab cov txheej txheem optimization hauv paus rau precision machining ntawm complex nkhaus nto.
3.3 Txheej txheem Optimization Analysis
Los ntawm kev sib piv thiab txheeb xyuas cov cim tseem ceeb xws li qhov sib txawv ntawm qhov chaw, kev ua haujlwm ruaj khov, thiab kev tawm tswv yim ua haujlwm zoo, cov kev taw qhia ua kom zoo rau kev tshuaj xyuas hauv online thiab qhov tau txais qhov tseeb tuaj yeem qhia meej. Kev sojntsuam tsim nyog tuaj yeem ua kom muaj txiaj ntsig zoo ntawm cov ntsiab lus nkhaus ntawm qhov chaw tseem ceeb, txo cov kev ua yuam kev hauv zos, thiab tsis txhob cuam tshuam nrog cov khoom siv thiab cov punches. Cov ntaub ntawv ua cov algorithms tuaj yeem tsim qhov sib txawv ntawm daim duab qhia chaw raws li qhov tiag - cov ntaub ntawv tau txais lub sijhawm, pab kho cov clamping quab yuam los yog txiav cov kev txwv kom ua tiav kev sib koom ua ke hauv machining stability thiab nto zoo.
Synergistic optimization tsom xam qhia tau hais tias kev sojntsuam kev npaj thiab clamping system yuav tsum ua hauj lwm zoo ua ke los xyuas kom meej clamping nruj thiab ntsuas qhov tseeb. Los ntawm kev txheeb xyuas qhov system, cov phiaj xwm tshawb pom hauv online tau yoog rau cov yam ntxwv sib txawv ntawm qhov curvature thiab cov duab ib feem tuaj yeem tsim tau, ntxiv kev txhim kho kev tswj hwm ntawm kev ua haujlwm thiab qhov tseeb ntawm qhov chaw nkhaus. Tag nrho cov txheej txheem optimization hais txog cov ntaub ntawv nrhiav tau qhov tseeb, cov lus teb ceev ceev thiab clamping lub xeev kev sib koom ua ke, thiab tsim kom muaj ib qho kev ua tiav theoretical rau kev tswj hwm thiab cov txheej txheem optimization rau precision machining ntawm complex curved nto.
04
Tsis siv neeg clamping thiab nrhiav kom pom hauv online sib koom ua ke optimization
4.1 Cov tswv yim sib koom ua kom zoo tshaj plaws
Nyob rau hauv precision machining ntawm complex curved nto, kev txhawb nqa ntawm lub hauv paus phaj punch yog ze ze rau qhov rationality ntawm qhov kev sojntsuam layout [3]. Kev tshawb fawb cov ntaub ntawv qhia tau hais tias thaum lub punch txhawb cov ntsiab lus tsis sib npaug los yog qhov rigidity tsis txaus, ib feem yuav ua rau lub siab tshaj plaws warping deformation ntawm 0.15 ~ 0.20mm nyob rau hauv lub txiav quab yuam. Muab qhov kev sojntsuam tso rau hauv siab - thaj chaw muaj kev pheej hmoo warping tuaj yeem saib xyuas kev hloov pauv thiab ua tiav cov nyiaj them poob haujlwm. Lub hauv paus ntawm kev sib koom tes optimization lub tswv yim yog kom ua tiav qhov sib txuam thiab hloov kho ntawm clamping rigidity, ib feem deformation thiab nrhiav kom raug. Los ntawm kev ua kom zoo dua ntawm kev txhawb nqa punch layout thiab tsim ntawm kev sojntsuam cov ntsiab lus tseem ceeb, kev ua haujlwm ruaj khov thiab ntsuas qhov tseeb tuaj yeem txhim kho ib txhij [4]. Simulation tsom xam thiab tsim kev txiav tawm qhia tau hais tias ntau dua clamping txhav ua rau me me deformation, thaum lub sij hawm sojntsuam layout tso cai rau tsom saib xyuas cov cheeb tsam nrog loj curvature variations. Piv txwv li, rau qhov nyuaj nkhaus nrog curvature radii ntawm 50-120 mm, optimized punch qauv tuaj yeem tswj lub zos deformation mus rau hauv 0.05 hli. Ua ke nrog tiag tiag- lub sijhawm sojntsuam sib txawv tau txais thiab tawm tswv yim rau lub tshuab machining tswj, kaw-loop precision tswj tau tiav. Qhov kev sib koom tes daws teeb meem no muab cov txheej txheem kev ua kom zoo dua qub rau cov txheej txheem ua haujlwm nyuaj, ua kom muaj kev sib koom tes zoo ntawm clamping thiab tshuaj xyuas kev ua haujlwm.
4.2 Optimization Comparison Analysis
Table 1 sib piv cov txiaj ntsig zoo ntawm cov txheej txheem sib txawv ntawm cov txheej txheem sib xyaw ua ke. Table 1 qhia tau hais tias cov tsoos fixing clamping + offline soj ntsuam scheme muaj ib tug sib txawv ntawm txog 0.18 hli nyob rau hauv siab curvature cheeb tsam, nrog rau feem ntau tsis zoo machining stability; tsis siv neeg clamping + offline soj ntsuam lub tswv yim txo qhov sib txawv mus rau 0.10 hli, txhim kho machining stability; Kev sib xyaw ntawm lub hauv paus phaj punch + tsis siv neeg clamping + kev tshuaj xyuas online ntxiv txo qhov sib txawv rau 0.03-0.05 hli, txhim kho kev ua haujlwm ruaj khov. Cov ntaub ntawv qhia tau hais tias kev txhawb nqa kev ua kom zoo tuaj yeem txo qis hauv zos warping deformation los ntawm kwv yees li 60%, thiab kev soj ntsuam hauv online tuaj yeem ua tiav ntau dua 95% kev pabcuam ntawm cov ntsiab lus tseem ceeb, ua rau muaj kev txhim kho dual hauv kev ua haujlwm raug thiab kev ua haujlwm ntau lawm.
Table 1: Optimization Effects of Different Process Combinations
Kev tsom xam pom tau hais tias kev tsim qauv punching, clamping quab yuam faib, thiab kev sojntsuam layout yuav tsum tau npaj tag nrho. Cov txheej txheem kev sib xyaw ua ke tau zoo tuaj yeem tswj hwm qhov deformation nyob rau hauv kev tso cai kam rau ua thaum ua kom muaj tseeb - lub sijhawm saib xyuas thiab kev hloov pauv hloov pauv ntawm kev txiav tsis zoo rau qhov sib txawv ntawm qhov chaw. Cov tswv yim no tsis yog tsuas yog txhim kho kev ntseeg siab ntawm kev ua haujlwm saum npoo av, tab sis kuj tseem muab cov txheej txheem ua tau zoo rau kev tsim cov khoom siv siab -precision pwm, aerospace, thiab cov khoom siv tsheb.
4.3 Cov lus pom zoo rau kev siv cov txheej txheem
Nyob rau hauv precision machining ntawm complex nto, tag nrho cov tsim ntawm lub clamping system thiab kev soj ntsuam online yuav tsum ua raws li cov hauv paus ntsiab lus ntawm "rigidity precisely, qhov tseem ceeb point coverage, thiab tawm tswv yim kaw voj." Lub hauv paus phaj punch tsim yuav tsum xav txog ob qho tib si kev txhawb nqa nruj thiab kev sib cuag, thiab kev sojntsuam layout yuav tsum tsom mus rau npog thaj chaw tseem ceeb nrog kev hloov pauv loj thiab qhov yuam kev rhiab heev, ua tiav qhov tiag - lub sijhawm saib xyuas thiab kev hloov pauv ntawm cov txheej txheem machining. Lub tswv yim optimization tuaj yeem txo qhov deformation hauv cheeb tsam ntawm ib feem ntawm 0.15mm mus rau hauv 0.05mm, thiab txhim kho qhov tseeb machining li ntawm 66%, muab cov ntsiab lus meej meej rau kev siv cov txheej txheem [5]. Daim ntawv thov kev xyaum qhia tau hais tias qhov kev sib koom tes optimization txoj kev no muaj feem xyuam rau lub machining ntawm ntau hom complex curved nto qhov chaw, tsis tas yuav tsum tau rov ua cov txheej txheem pov thawj rau ib feem. Los ntawm kev tsim qauv ntawm lub clamping module thiab kev sojntsuam kev sojntsuam, kev sib koom ua ke ntawm kev tswj hwm ntawm machining thiab tshuaj xyuas tuaj yeem ua tiav, thiab nws tuaj yeem hloov kho kom haum rau ntau qhov tshwj xeeb ntawm cov khoom thiab cov txheej txheem machining. Ua ke nrog cov qauv txheej txheem digital, cov tswv yim no tuaj yeem siv rau cov chaw tsim khoom ntse lossis digital ntxaib tsim ib puag ncig yav tom ntej, muab cov txheej txheem hloov pauv thiab hloov pauv tau, cov txheej txheem kev coj ua thiab kev txiav txim siab ua kom zoo dua rau siab -qhov tseeb qhov machining. 05 Xaus daim ntawv no tau ua kom zoo dua qhov tsis siv neeg clamping thiab kev soj ntsuam hauv online ntawm txoj kev nkhaus. Kev ruaj ntseg ntawm ib feem clamping yog ua kom ntseeg tau los ntawm kev tsim ntawm lub hauv paus phaj tsim cov punch, thiab qhov tiag - lub sij hawm saib xyuas thiab kev sib txawv ntawm qhov tseem ceeb nkhaus yog pom tau los ntawm kev sojntsuam ntsuas tshuab. Cov txiaj ntsig kev sib koom tes ua kom zoo tshaj plaws qhia tau hais tias qhov kev sib koom ua ke no tuaj yeem txo qhov warping deformation thiab machining sib txawv ntawm qhov chaw, thiab ua kom zoo dua machining stability thiab repeatability. Qhov kev ua kom zoo tshaj plaws no yog qhov hloov tau zoo heev thiab tuaj yeem siv dav rau kev ua haujlwm ntawm ntau hom kev ua haujlwm nkhaus ntawm qhov chaw, muab cov txheej txheem rov ua dua thiab scalable thiab cov txheej txheem ua tau zoo rau kev ua haujlwm siab - qhov tseeb.
