Txhim kho Kev Tsim Cov Ntawv Hlau Qhov Chaw - Sheet Hlau Cov Lus Qhia
Lub sijhawm nyeem ntawv kwv yees: 9 feeb, 48 vib nas this.
Thaum tsim cov khoom seem, nws yog ib qho tseem ceeb uas yuav tau xav txog qhov yooj yim ntawm kev tsim khoom.Sim xav txog txoj hauv kev los ua kom yooj yim rau kev ua, tab sis kuj yuav txuag tau cov khoom, thiab ua kom lub zog tsis muaj seem.Yog li ntawd, cov neeg tsim qauv yuav tsum tau xyuam xim rau cov khoom tsim hauv qab no
Sheet hlau qhov chaw 'machinability yog hais txog qhov nyuaj ntawm kev txiav, khoov thiab ncab ntawm qhov chaw.Cov txheej txheem zoo yuav tsum xyuas kom meejKev siv cov khoom siv tsawg dua, cov txheej txheem tsawg dua, kev tsim cov pwm yooj yim, lub neej ntev thiab cov khoom ruaj khov.Feem ntau, qhov tseem ceeb tshaj plaws ntawm cov txheej txheem ntawm cov ntawv hlau yog cov khoom siv, qhov geometric, qhov loj me thiab qhov tseeb.
Yuav ua li cas los txiav txim siab txog qhov yuav tsum tau ua thiab cov yam ntxwv ntawm cov txheej txheem ua haujlwm thaum tsim cov qauv ntawm cov ntawv nyias nyias, ntau cov txheej txheem tsim tau pom zoo ntawm no.
1 cov lus qhia yooj yim geometry
Qhov yooj yim ntawm cov duab geometric ntawm qhov chaw txiav, qhov yooj yim dua thiab yooj yim rau kev txiav, txoj kev luv luv ntawm kev txiav, thiab qhov me me ntawm qhov txiav.Piv txwv li,txoj kab ncaj nraim yog yooj yim dua li qhov nkhaus, lub voj voog yog yooj yim dua li lub voj voog thiab lwm qhov kev txiav txim siab dua, thiab cov duab tsis tu ncua yog yooj yim dua li cov duab tsis zoo.(saib daim duab 1).
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 1)
Cov qauv ntawm daim duab 2a ua rau kev nkag siab ntau dua thaum lub ntim loj;txwv tsis pub, thaum xuas nrig ntaus, txiav yog teeb meem;yog li ntawd, cov qauv qhia nyob rau hauv Fig.2b yog tsim nyog rau me me ntim ntau lawm.
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 2)
2 Cov txheej txheem txuag cov ntaub ntawv (kev ua raws li cov lus qhia ntawm kev xuas nrig ntaus thiab txiav)
Txuag raw khoom txhais tau tias txo cov nqi tsim khoom.Scraps ntawm kev txiav tawm feem ntau muab pov tseg raws li cov khoom pov tseg, yog li hauv kev tsim cov ntawv nyias nyias,cov kev txiav tawm yuav tsum tau txo qis.Punching rejects yog txo kom txo cov khoom pov tseg.Tshwj xeeb tshaj yog nyob rau hauv lub ntim ntawm loj Cheebtsam nyob rau hauv cov ntaub ntawv nyhuv yog tseem ceeb, txo cov off-txiav nyob rau hauv cov nram qab no txoj kev:
1) Txo qhov kev ncua deb ntawm ob tug neeg nyob ib sab (saib daim duab 3).
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 3)
2) Kev txawj ntse (saib daim duab 4).
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 4)
3) Tshem tawm cov khoom ntawm cov dav hlau loj rau cov khoom me
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 5)
3 Cov lus qhia muaj zog txaus
1) bending ntug nrog beveled ntug yuav tsum zam qhov deformation cheeb tsam
(Daim duab 6)
2) yog tias qhov kev ncua deb ntawm ob lub qhov me me dhau, nws muaj peev xwm tawg thaum txiav.
Tus tsim ntawmxuas nrig ntaus qhov ntawm ib feem yuav tsum tau txiav txim siab kom tawm ntawm qhov haum ntawm ntug qhov nrug thiab qhov sib nrug kom tsis txhob xuas nrig ntaus.Qhov kev ncua deb tsawg kawg nkaus ntawm ntug ntawm lub qhov punching thiab cov duab ntawm ib feem yog txwv los ntawm cov duab sib txawv ntawm ib feem thiab lub qhov.Thaum lub npoo ntawm lub qhov punching tsis yog sib npaug rau ntawm ntug ntawm cov duab, qhov tsawg kawg nkaus yuav tsum tsis pub tsawg tshaj li cov khoom thickness t;Thaum sib npaug, nws yuav tsum tsis pub tsawg tshaj 1.5 t.Qhov tsawg kawg ntawm qhov ntug qhov nrug thiab qhov sib nrug yog qhia hauv lub rooj.
(Daim duab 7)
Covpuag ncig lub qhov yog cov khoom ruaj khov tshaj plaws thiab yooj yim rau kev tsim thiab tswj, thiab qhov qhib tus nqi qis.Lub qhov square muaj qhov qhib siab tshaj plaws, tab sis vim tias nws yog 90 degree kaum sab xis, lub kaum sab xis yog yooj yim rau hnav tawm thiab tawg, ua rau cov pwm kho thiab nres cov kab ntau lawm.Thiab lub qhov hexagonal qhib nws lub kaum sab xis 120 degree siab dua 90 degrees tshaj qhov square qhov qhib ntau zog, tab sis qhov qhib tus nqi ntawm ntug tshaj lub square qhov yog me ntsis poorer.
3) nyias thiab ntev slats nrog qis nruj kuj yooj yim los tsim cov kab nrib pleb thaum txiav, tshwj xeeb tshaj yog hnyav hnav ntawm lub cuab yeej.
Qhov tob thiab qhov dav ntawm qhov tawm los yog qhov chaw ntawm qhov xuas nrig ntaus, feem ntau, yuav tsum tsis pub tsawg dua 1.5t (t yog cov khoom tuab), thiab yuav tsum tsis txhob nqaim thiab ntev cutouts nrog thiab dhau qhov nqaim grooves thiaj li yuav nce. lub zog ntug ntawm qhov sib thooj ntawm qhov tuag.Saib daim duab (8).
Rau cov hlau dav hlau A ≥ 1.5t;rau alloy steel A ≥ 2t;rau tooj dag, txhuas A ≥ 1.2t;t - thickness ntawm cov khoom.
Daim duab (8)
4 Txhim khu kev xuas nrig ntaus cov lus qhia
Daim duab 9a qhia hauvlub semi-circular tangent qauv xuas nrig ntaus ua yog nyuaj.Vim tias nws yuav tsum tau txiav txim siab qhov tseeb ntawm qhov txheeb ze ntawm lub cuab yeej thiab lub workpiece.Kev ntsuas qhov tseeb ntawm qhov chaw tsis yog tsuas yog siv sijhawm ntev xwb, tab sis tseem ceeb dua, cov cuab yeej los ntawm kev hnav thiab kev teeb tsa tsis raug, qhov tseeb feem ntau tsis ncav cuag cov kev xav tau siab.Thaum xws li ib tug qauv yog me ntsis deviated los ntawm lub machining, qhov zoo yog ib qho nyuaj rau lav thiab txiav zoo li tsis zoo.Yog li ntawd, cov qauv qhia hauv daim duab 9b yuav tsum tau siv, uas tuaj yeem ua kom ntseeg tau tias kev xuas nrig ntaus ua haujlwm zoo.
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 9)
5 Tsis txhob nplaum riam riam (cov txheej txheem kev teeb tsa ntawm qhov nkag mus)
Nyob rau hauv nruab nrab ntawm cov khoom xuas nrig ntaus thiab txiav yuav tshwm sim qhov teeb meem ntawm cov cuab yeej thiab cov khoom sib txuas sib txuas sib txuas.Txoj kev daws teeb meem:(1) tawm ib qho kev nqes hav;(2) txiav nto txuas(saib daim duab 10 thiab daim duab 11).
(a) Irrational structure (b) Txhim kho cov qauv (a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 10) (Daim duab 11)
Thaum lub puab tsaig yog ua nyob rau hauv ib tug txheej txheem nrog xuas nrig ntaus thiab txiav txoj kev mus rau hauv 90 ° dabtsi yog khoov ntug, xaiv cov ntaub ntawv yuav tsum tau xyuam xim rau cov khoom yuav tsum tsis txhob yuav nyuaj heev, txwv tsis pub nws yog ib qho yooj yim rau tawg ntawm lub kaum sab xis khoov.Yuav tsum tau tsim nyob rau hauv txoj hauj lwm ntawm txoj kev nkhaus ntug txiav kom tsis txhob rupture ntawm lub ces kaum ntawm lub quav.
(Daim duab 12)
6 khoov ntug ntsug txiav nto txheej txheem
Daim ntawv nyob rau hauv cov txheej txheem txiav tom qab cov txheej txheem txuas ntxiv, xws li khoov.Khoov ntug yuav tsum yog perpendicular mus rau qhov chaw txiav, txwv tsis pub txoj kev pheej hmoo ntawm kev tawg ntawm kev sib tshuam yog siab..Yog tias cov kev cai ntsug tsis tuaj yeem ua tau raws li lwm cov kev txwv,qhov txiav nto thiab qhov kev sib tshuam ntawm cov ntug khoov yuav tsum tau tsim ib lub kaum sab xis, lub vojvoog uas ntau dua ob npaug ntawm lub thickness ntawm lub phaj.
7 Cov txheej txheem khoov maj mam
Steep dabtsi yog khoov yuav tsum tau cov cuab yeej tshwj xeeb, thiab tus nqi siab.Tsis tas li ntawd, lub vojvoog me me dhau los ua rau tawg thiab tawg ntawm lub ntsej muag sab hauv (saib daim duab 13 thiab daim duab 14).
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 13)
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 14)
8Cov lus qhia kom tsis txhob me me ncig dov npoo
Cov npoo ntawm cov phaj nyias nyias yog feem ntau dov npoo qauv, uas muaj ntau yam txiaj ntsig.(1) ntxiv dag zog;(2) zam cov npoo ntse;(3) zoo nkauj.Txawm li cas los xij, cov ntug dov yuav tsum tau them sai sai rau ob lub ntsiab lus, ib qho yog lub vojvoog yuav tsum siab dua 1.5 npaug ntawm cov phaj tuab;thib ob tsis yog tag nrho puag ncig, yog li ntawd qhov kev ua haujlwm nyuaj, Daim duab 15b qhia tau hais tias cov npoo dov tshaj qhov sib npaug ntawm cov npoo yob yooj yim rau kev ua haujlwm.
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 15)
9 Qhov ntug ntug tsis khoov cov lus qhia
Khoov ntug thiab qhov qhov qhov ntug yuav tsum tau sib cais los ntawm ib qho kev ncua deb, tus nqi pom zoo yog qhov khoov vojvoog ntxiv rau ob zaug ntawm phab ntsa tuab.Qhov chaw khoov yog qhov nyuaj los ntawm lub xeev ntawm lub zog, thiab lub zog yog tsawg.Notch nyhuv ntawm lub qhov qhov yuav tsum tau muab cais tawm ntawm qhov chaw no.Ob qho tag nrho lub qhov nyob deb ntawm qhov khoov ntug, tab sis kuj yog lub qhov rooj hla tag nrho cov ntug khoov (saib daim duab 16).
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 16)
10 Cov txheej txheem sib xyaw ua ke ntawm kev tsim khoom
Qhov chaw qauv yog complex Cheebtsam, tag nrho los ntawm dabtsi yog khoov txoj kev yog nyuaj.Yog li ntawd,sim tsim cov qauv kom yooj yim li sai tau, nyob rau hauv cov ntaub ntawv uas tsis yog-them, muaj ua ke ntawm cov khoom, uas yog, ib tug xov tooj ntawm yooj yim nyias phaj Cheebtsam nrog vuam, bolting thiab lwm txoj kev los ua ke.Cov qauv ntawm daim duab 20b yog yooj yim rau kev ua dua li cov qauv ntawm daim duab 17a.
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 17)
11 Zam cov kab ncaj nraim kom nkag mus rau cov lus qhia
Cov qauv phaj nyias muaj qhov tsis zoo ntawm qhov tsis zoo ntawm kev sib hloov khoov nruj.Cov qauv loj loj yog yooj yim khoov tsis ruaj khov.Ntxiv mus kuj yuav khoov pob txha.Feem ntau siv lub siab zawj los txhim kho nws qhov nruj.Kev npaj ntawm qhov zawj muaj qhov cuam tshuam zoo rau kev txhim kho qhov tawv nqaij.Lub hauv paus ntsiab lus ntawm groove npaj yog kom tsis txhob ncaj qha mus rau hauv cheeb tsam tsis muaj grooves.Qhov nqaim ntawm qhov qis qis los ntawm qhov yooj yim los ua lub axis ntawm inertia ntawm tag nrho cov phaj buckling instability.Lub instability ib txwm revolves nyob ib ncig ntawm ib tug axis ntawm inertia, yog li ntawd, qhov kev npaj ntawm lub siab zawj yuav tsum txiav tawm no axis ntawm inertia thiab ua kom luv li sai tau.Nyob rau hauv cov qauv qhia nyob rau hauv daim duab 18a, ntau lub nqaim strips yog tsim nyob rau hauv lub cheeb tsam uas tsis muaj siab slots.Nyob ib ncig ntawm cov axes, qhov khoov nruj ntawm tag nrho cov phaj tsis zoo tuaj.Cov qauv qhia nyob rau hauv daim duab 18b tsis muaj peev xwm txuas nrog destabilizing inertia axes, thiab daim duab 19 qhia txog cov qauv zawj thiab kev teeb tsa, nrog rau kev sib zog ua kom muaj zog nce los ntawm sab laug mus rau sab xis, thiab qhov kev tsis sib haum xeeb yog ib txoj hauv kev zoo kom tsis txhob muaj kev ncaj ncees. .
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 18)
(Daim duab 19)
12 Cov lus qhia rau kev sib txuas ntawm lub siab groove
Lub zog qaug zog ntawm qhov kawg ntawm lub siab zawj yog qhov tsis muaj zog, thiab yog tias lub siab zawj txuas nrog, ib feem ntawm nws qhov kawg yuav raug tshem tawm.Daim duab 20 yog lub thawv roj teeb ntawm lub tsheb thauj khoom, nws raug rau kev thauj khoom dynamic, Daim duab 20a qauv nyob rau hauv lub siab zawj kawg qaug zog puas tsuaj.Cov qauv hauv daim duab 20b tsis muaj qhov teeb meem no.Qhov siab siab zawj kawg yuav tsum tau zam thiab, yog tias ua tau, lub siab zawj yog txuas mus rau thaj tsam (saib daim duab 21).Kev nkag mus ntawm lub siab zawj tshem tawm qhov tsis muaj zog kawg.Txawm li cas los xij, qhov kev sib tshuam ntawm cov qhov siab yuav tsum loj txaus kom qhov kev sib cuam tshuam ntawm cov slots raug txo (saib daim duab 22).
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 20)
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 21)
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 22)
13 Spatial pressure groove criterion
Lub instability ntawm spatial qauv tsis txwv rau ib tug tej yam, yog li ntawd, qhov chaw siab zawj tsuas yog nyob rau hauv ib lub dav hlau tsis tuaj yeem ua tiav cov txiaj ntsig ntawm kev txhim kho lub peev xwm los tiv thaiv kev puas tsuaj ntawm tag nrho cov qauv.Piv txwv li, nyob rau hauv U- thiab Z-zoo li tus qauv qhia nyob rau hauv daim duab 23, lawv instability yuav tshwm sim nyob ze ntawm cov npoo.Txoj kev daws teeb meem no yog tsim lub siab zawj raws li qhov chaw (saib daim duab 23b.)
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 23)
14 Cov lus qhia kom txo qis ib feem
Wrinkles tshwm sim thaum ib nrab deformation yog hnyav heev ntawm cov phaj nyias.Txoj kev daws teeb meem yog los teeb tsa ob peb lub siab me me nyob ze ntawm lub crease, thiaj li yuav txo tau lub zog hauv zos thiab txo qhov deformation obstruction (saib daim duab 24).
(a) Irrational structure (b) Txhim kho cov qauv
(Daim duab 24)
15 Cov txheej txheem rau kev xuas nrig ntaus
1) Yam tsawg kawg nkaus punching txoj kab uas hla los yog tsawg kawg sab ntev ntawm square qhov
Punching yuav tsum txwv los ntawm lub zog ntawm lub punch, thiabqhov loj ntawm lub punch yuav tsum tsis txhob me heev, txwv tsis pub cov punch yuav yooj yim puas.Yam tsawg kawg nkaus punching txoj kab uas hla thiab yam tsawg kawg nkaus sab ntev yog qhia nyob rau hauv lub rooj.
* t yog lub thickness ntawm cov khoom, qhov tsawg kawg nkaus loj ntawm cov punch feem ntau tsis tsawg tshaj li 0.3 hli.
2) Punching notch txoj cai
Punching thais yuav tsum sim kom tsis txhob muaj cov ces kaum ntse, raws li qhia hauv daim duab.Taw tes daim ntawv yog ib qho yooj yim kom luv lub neej kev pab cuam ntawm cov tuag, thiab lub kaum ntse ntse yog yooj yim los tsim cov kab nrib pleb.Yuav tsum tau hloov mus rau raws li qhia hauv daim duab b.
R ≥ 0.5t (t - khoom thickness)
ib Fig.b Fig.
Lub kaum ntse ntse yuav tsum tau zam nyob rau hauv cov duab thiab bore ntawm qhov punched.Ntawm qhov kev sib txuas ntawm txoj kab ncaj nraim los yog nkhaus kom muaj qhov sib txuas arc, lub vojvoog ntawm arc R ≥ 0.5t.(t yog cov khoom siv phab ntsa thickness)
Sheet hlau dabtsi yog khoov los ntawm kev sivPROLEAN'TECHNOLOGY.
Ntawm PROLEAN TECH, peb mob siab rau peb lub tuam txhab thiab cov kev pabcuam uas peb muab rau peb cov neeg siv khoom.Yog li ntawd, peb nqis peev ntau rau hauv kev nce qib tshiab hauv peb cov thev naus laus zis thiab muaj cov kws ua haujlwm siab tshaj plaws ntawm koj qhov pov tseg.
Prolean lub zeem muag yog los ua tus thawj coj kev daws teeb meem ntawm On-Demand Manufacturing.Peb tab tom ua haujlwm hnyav los ua kev tsim khoom yooj yim, nrawm, thiab txuag nqi los ntawm kev tsim qauv mus rau ntau lawm.
Lub sij hawm xa tuaj: Mar-30-2022