English

Traceless dabtsi yog khoov tshuab ntawm daim hlau [duab].

Paub meej: nyob rau hauv cov txheej txheem ntawm cov ntawv hlau dabtsi yog khoov, cov tsoos bending txheej txheem yog ib qho yooj yim rau kev puas tsuaj rau lub workpiece nto, thiab nto nyob rau hauv kev sib cuag nrog cov tuag yuav tsim pom tseeb indentation los yog khawb, uas yuav cuam tshuam rau kev zoo nkauj ntawm cov khoom.Daim ntawv no yuav piav qhia txog qhov ua rau khoov indentation thiab daim ntawv thov ntawm traceless dabtsi yog khoov tshuab.

Cov ntawv hlau ua tshuab ua kom zoo dua qub, tshwj xeeb tshaj yog nyob rau hauv qee qhov kev siv xws li precision stainless hlau dabtsi yog khoov, stainless hlau trim dabtsi yog khoov, aluminium alloy dabtsi yog khoov, aircraft qhov dabtsi yog khoov thiab tooj liab phaj dabtsi yog khoov, uas ntxiv tso rau pem hauv ntej cov kev xav tau ntau dua rau qhov zoo ntawm cov khoom tsim.

Cov txheej txheem khoov ib txwm yog ib qho yooj yim rau kev puas tsuaj rau saum npoo ntawm lub workpiece, thiab ib qho pom tseeb indentation los yog khawb yuav ua rau ntawm qhov chaw ntawm kev sib cuag nrog cov tuag, uas yuav cuam tshuam rau kev zoo nkauj ntawm cov khoom kawg thiab txo tus neeg siv qhov kev txiav txim siab ntawm cov khoom. .

Thaum khoov, vim tias cov ntawv hlau yuav raug extruded los ntawm kev khoov tuag thiab tsim elastic deformation, qhov chaw sib cuag ntawm daim ntawv thiab cov tuag yuav plam nrog kev nce qib ntawm cov txheej txheem khoov.Nyob rau hauv cov txheej txheem dabtsi yog khoov, cov ntawv hlau yuav ntsib ob theem pom tseeb ntawm elastic deformation thiab yas deformation.Nyob rau hauv txoj kev khoov, yuav muaj cov txheej txheem tswj lub siab (peb lub ntsiab lus ntawm kev tuag thiab cov ntawv hlau).Yog li ntawd, tom qab txoj kev khoov tiav lawm, peb indentation kab yuav raug tsim.

Cov kab indentation feem ntau yog tsim los ntawm kev sib txhuam extrusion ntawm lub phaj thiab V-groove xub pwg ntawm qhov tuag, yog li lawv hu ua lub xub pwg indentation.Raws li pom nyob rau hauv daim duab 1 thiab daim duab 2, cov laj thawj tseem ceeb ntawm kev tsim ntawm lub xub pwg nyom tuaj yeem muab faib ua cov pawg hauv qab no.

Daim duab 2 bending indentation

Daim duab 1 Schematic daim duab ntawm dabtsi yog khoov

1. Txoj kev khoov

Txij li thaum tiam ntawm lub xub pwg indentation muaj feem xyuam rau kev sib cuag ntawm daim ntawv hlau thiab V-groove lub xub pwg nyom ntawm tus poj niam tuag, nyob rau hauv txoj kev khoov, qhov sib txawv ntawm lub punch thiab tus poj niam tuag yuav cuam tshuam rau compressive kev nyuaj siab ntawm daim ntawv hlau, thiab qhov tshwm sim thiab qib ntawm indentation yuav txawv, raws li pom hauv daim duab 3.

Nyob rau hauv cov xwm txheej ntawm tib V-groove, qhov loj dua lub kaum sab xis ntawm cov dabtsi yog khoov workpiece, qhov loj dua qhov sib txawv ntawm cov ntawv hlau raug ncab, thiab ntev dua qhov kev sib txhuam ntawm cov ntawv hlau ntawm lub xub pwg ntawm V-groove. ;Ntxiv mus, qhov loj dua qhov khoov lub kaum sab xis yog, ntev dua lub sij hawm tuav lub siab exerted los ntawm cov punch ntawm daim ntawv yuav, thiab ntau pom tseeb qhov indentation tshwm sim los ntawm kev sib xyaw ntawm ob yam.

2. Cov qauv ntawm V-groove ntawm poj niam tuag

Thaum khoov cov ntawv hlau nrog cov thickness sib txawv, V-groove dav kuj txawv.Nyob rau hauv cov xwm txheej ntawm tib lub punch, qhov loj dua qhov loj ntawm V-groove ntawm qhov tuag, qhov loj dua qhov loj ntawm qhov indentation dav.Raws li, qhov me me ntawm kev sib txhuam ntawm cov ntawv hlau thiab lub xub pwg ntawm V-groove ntawm qhov tuag, thiab qhov tob indentation ib txwm txo qis.Ntawm qhov tsis sib xws, qhov thinner lub phaj thickness, qhov nqaim ntawm V-groove, thiab qhov pom tseeb dua qhov indentation.

Thaum nws los txog kev sib txhuam, lwm yam cuam tshuam nrog kev sib txhuam uas peb xav txog yog kev sib txhuam coefficient.R lub kaum sab xis ntawm lub xub pwg ntawm V-groove ntawm tus poj niam tuag yog qhov sib txawv, thiab kev sib txhuam ua rau cov ntawv hlau hauv cov txheej txheem ntawm cov ntawv hlau dabtsi yog khoov kuj txawv.Ntawm qhov tod tes, los ntawm qhov kev xav ntawm lub siab tawm los ntawm V-groove ntawm qhov tuag ntawm daim ntawv, qhov loj dua R-angle ntawm V-groove ntawm qhov tuag, qhov me dua qhov siab ntawm daim ntawv thiab lub xub pwg nyom. V-groove ntawm qhov tuag, thiab qhov sib dua lub indentation, thiab vice versa.

3. Lubrication degree ntawm V-groove ntawm poj niam tuag

Raws li tau hais ua ntej, qhov saum npoo ntawm V-groove ntawm qhov tuag yuav tiv nrog daim ntawv los tsim kev sib txhuam.Thaum cov tuag tau hnav, qhov sib cuag ntawm V-groove thiab cov ntawv hlau yuav dhau los ua rougher thiab rougher, thiab kev sib txhuam coefficient yuav loj dua thiab loj dua.Thaum cov ntawv hlau swb rau ntawm qhov chaw ntawm V-groove, kev sib cuag ntawm V-groove thiab cov ntawv hlau yog qhov sib txuas ntawm suav tsis txheeb cov pob thiab cov chaw.Nyob rau hauv txoj kev no, lub siab ua haujlwm ntawm qhov chaw ntawm cov ntawv hlau yuav nce raws li, thiab qhov indentation yuav pom tseeb dua.

Ntawm qhov tod tes, V-groove ntawm tus poj niam tuag tsis yog wiped thiab ntxuav ua ntej lub workpiece yog khoov, uas feem ntau ua kom pom tseeb indentation vim lub extrusion ntawm lub phaj los ntawm cov seem seem ntawm V-groove.Qhov xwm txheej no feem ntau tshwm sim thaum cov khoom siv khoov cov khoom ua haujlwm xws li galvanized phaj thiab carbon steel phaj.

2, Daim ntawv thov ntawm traceless dabtsi yog khoov tshuab

Txij li thaum peb paub tias qhov laj thawj tseem ceeb ntawm kev khoov indentation yog kev sib txhuam ntawm cov ntawv hlau thiab lub xub pwg ntawm V-groove ntawm qhov tuag, peb tuaj yeem pib los ntawm vim li cas oriented xav thiab txo qhov kev sib txhuam ntawm cov ntawv hlau thiab lub xub pwg nyom. V-groove ntawm tuag los ntawm txheej txheem technology.

Raws li cov qauv kev sib txhuam F = μ· N nws tuaj yeem pom tias qhov cuam tshuam rau kev sib txhuam quab yuam yog kev sib txhuam coefficient μ Thiab siab n, thiab lawv ncaj qha proportional rau kev sib txhuam.Raws li, cov txheej txheem hauv qab no tuaj yeem tsim tau.

1. Lub xub pwg ntawm V-groove ntawm tus poj niam tuag yog ua los ntawm cov khoom tsis yog xim hlau

Daim duab 3 khoov hom

Tsuas yog los ntawm kev nce R lub kaum sab xis ntawm V-groove lub xub pwg nyom ntawm qhov tuag, cov txheej txheem ib txwm siv los txhim kho qhov khoov indentation nyhuv tsis zoo.Los ntawm qhov kev xav ntawm kev txo qis hauv kev sib txhuam khub, nws tuaj yeem txiav txim siab hloov V-groove lub xub pwg mus rau hauv cov khoom tsis yog xim hlau softer dua phaj, xws li nylon, Youli kua nplaum (PU elastomer) thiab lwm yam ntaub ntawv, ntawm premise ntawm kom ntseeg tau tus thawj extrusion nyhuv.Xav tias cov ntaub ntawv no yooj yim plam thiab yuav tsum tau hloov tsis tu ncua, muaj ob peb V-groove qauv siv cov ntaub ntawv tam sim no, raws li qhia hauv daim duab.

2. Lub xub pwg ntawm V-groove ntawm poj niam tuag yog hloov mus rau hauv pob thiab cov menyuam cov qauv

Ib yam li ntawd, raws li lub hauv paus ntsiab lus ntawm kev txo cov kev sib txhuam coefficient ntawm daim ntawv thiab V-groove ntawm qhov tuag, zawv zawg kev sib txhuam ntawm daim ntawv thiab lub xub pwg nyom ntawm V-groove ntawm qhov tuag tuaj yeem hloov mus rau hauv kev sib txhuam, thiaj li. zoo heev txo cov kev sib txhuam ntawm daim ntawv thiab zoo tsis txhob bending indentation.Tam sim no, cov txheej txheem no tau siv dav hauv kev lag luam tuag, thiab pob traceless bending tuag (Fig. 5) yog ib qho piv txwv ntawm daim ntawv thov.

Fig. 5 pob traceless dabtsi yog khoov tuag

Txhawm rau kom tsis txhob muaj kev sib txhuam ntawm cov menyuam ntawm lub pob traceless dabtsi yog khoov tuag thiab V-groove, thiab tseem ua kom cov menyuam tig tau yooj yim dua thiab lubricate, lub pob tau ntxiv, txhawm rau txo qhov siab thiab txo qhov sib txhuam coefficient ntawm tib lub sijhawm.Yog li ntawd, cov khoom ua tiav los ntawm lub pob traceless dabtsi yog khoov tuag tuaj yeem ua tiav tsis pom qhov pom, tab sis qhov cuam tshuam tsis zoo ntawm cov phaj mos xws li txhuas thiab tooj liab tsis zoo.

Los ntawm qhov kev xav ntawm kev lag luam, vim hais tias cov qauv ntawm lub pob traceless dabtsi yog khoov tuag yog complex tshaj li saum toj no-hais tuag qauv, tus nqi ua yog siab thiab cov txij nkawm nyuaj, uas kuj yog ib qho tseem ceeb yuav tsum tau txiav txim siab los ntawm lub enterprise managers thaum xaiv. .

6 daim duab duab ntawm inverted V-groove

Tam sim no, muaj lwm yam pwm nyob rau hauv kev lag luam, uas siv lub fulcrum rotation txoj cai kom paub qhov dabtsi yog khoov ntawm qhov chaw los ntawm tig lub xub pwg ntawm poj niam pwm.Hom kev tuag no hloov cov qauv V-groove ntawm qhov chaw tuag, thiab teeb tsa lub dav hlau inclined ntawm ob sab ntawm V-groove raws li kev hloov pauv.Nyob rau hauv tus txheej txheem ntawm nias cov khoom nyob rau hauv lub punch, lub turnover mechanism ntawm ob sab ntawm lub punch yog tig rau sab hauv los ntawm sab saum toj ntawm lub punch nrog kev pab los ntawm lub siab ntawm lub punch, thiaj li mus khoov lub phaj, raws li qhia nyob rau hauv daim duab. 6.

Raws li qhov kev ua haujlwm no, tsis muaj qhov pom tseeb hauv zos zawv zawg kev sib txhuam ntawm cov ntawv hlau thiab cov tuag, tab sis nyob ze rau lub dav hlau tig thiab ze rau lub vertex ntawm lub punch kom tsis txhob muaj qhov sib txawv ntawm qhov chaw.Cov qauv ntawm qhov tuag no yog qhov nyuaj dua li cov qauv yav dhau los, nrog rau lub caij nplooj ntoos hlav nro thiab cov phaj hloov pauv, thiab cov nqi tu thiab cov nqi ua haujlwm ntau dua.

Ntau cov txheej txheem rau kev paub txog kev khoov traceless tau qhia ua ntej.Cov hauv qab no yog kev sib piv ntawm cov txheej txheem no, raws li qhia hauv Table 1.

Cov khoom sib piv Nylon V-groove Youli roj hmab V-groove Pob hom V-groove Inverted V-groove Traceless Pressure zaj duab xis
Khoov lub kaum sab xis Ntau lub kaum sab xis arc Ntau lub kaum sab xis Feem ntau siv ntawm cov ces kaum sab xis Ntau lub kaum sab xis
Siv tau phaj Ntau daim phiaj Ntau daim phiaj 　 Ntau daim phiaj Ntau daim phiaj
Ntev txwv ≥50mm ≥200mm ≥100mm / /
kev pabcuam lub neej 15-20 Kaum txhiab zaug 15-21 Kaum txhiab zaus / / 200 x
Kev hloov kho Hloov cov nylon core Hloov cov Youli roj hmab core Hloov lub pob Hloov tag nrho lossis hloov lub caij nplooj ntoos hlav nro thiab lwm yam khoom siv Hloov tag nrho
nqi Pheej yig Pheej yig kim kim Pheej yig
qhov zoo Tus nqi qis thiab tsim nyog rau traceless dabtsi yog khoov ntawm ntau daim hlau.Txoj kev siv yog sib npaug rau qis tuag ntawm tus qauv dabtsi yog khoov tshuab. Tus nqi qis thiab tsim nyog rau traceless dabtsi yog khoov ntawm ntau daim hlau. Lub neej ua haujlwm ntev dua Nws muaj feem xyuam rau ntau hom phaj nrog cov nyhuv zoo. Tus nqi qis thiab tsim nyog rau traceless dabtsi yog khoov ntawm ntau daim hlau.Txoj kev siv yog sib npaug rau qis tuag ntawm tus qauv dabtsi yog khoov tshuab.
txwv kev pab cuam lub neej yog luv dua li tus qauv tuag, thiab ntu loj yog txwv rau ntau tshaj 50mm. Tam sim no, nws tsuas yog siv tau rau cov traceless dabtsi yog khoov ntawm ncig arc khoom. Tus nqi yog kim thiab cov nyhuv ntawm cov ntaub ntawv mos xws li txhuas thiab tooj liab tsis zoo.Vim hais tias lub pob kev sib txhuam thiab deformation yog qhov nyuaj rau kev tswj, cov kab nrib pleb kuj tseem raug tsim rau ntawm lwm cov phaj tawv.Muaj ntau qhov txwv ntawm qhov ntev thiab thais. Tus nqi yog kim, Scope ntawm daim ntawv thov yog me me, thiab qhov ntev thiab notch yog txwv Lub neej kev pabcuam luv luv dua li lwm cov tswv yim, kev hloov pauv tsis tu ncua cuam tshuam rau kev tsim khoom, thiab tus nqi nce ntxiv thaum siv ntau ntau.

 

Table 1 Sib piv cov txheej txheem traceless dabtsi yog khoov

4. V-groove ntawm qhov tuag yog cais los ntawm cov ntawv hlau (qhov no yog pom zoo)

Cov txheej txheem hais saum toj no yog kom paub qhov tsis sib xws ntawm kev khoov los ntawm kev hloov qhov khoov tuag.Rau cov thawj tswj hwm kev lag luam, nws tsis pom zoo los txhim kho thiab yuav cov txheej txheem tshiab tuag kom paub txog kev khoov tsis zoo ntawm tus kheej.Los ntawm qhov pom ntawm kev sib txhuam kev sib txhuam, kev sib txhuam tsis muaj nyob ntev npaum li qhov tuag thiab daim ntawv sib cais.

Yog li ntawd, nyob rau hauv lub premise ntawm tsis hloov lub dabtsi yog khoov tuag, traceless dabtsi yog khoov yuav tsum tau paub los ntawm kev siv ib tug mos zaj duab xis kom tsis txhob muaj kev sib cuag ntawm V-groove ntawm cov tuag thiab cov ntawv hlau.Cov yeeb yaj kiab zoo li no tseem hu ua bending indentation free film.Cov ntaub ntawv feem ntau yog roj hmab, PVC (polyvinyl chloride), PE (polyethylene), PU (polyurethane), thiab lwm yam.

Qhov zoo ntawm cov roj hmab thiab PVC yog tus nqi qis ntawm cov khoom siv raw, thaum qhov tsis zoo yog tsis muaj kev tiv thaiv siab, kev tiv thaiv tsis zoo thiab kev ua haujlwm luv luv;PE thiab Pu yog cov khoom siv engineering nrog kev ua haujlwm zoo heev.Cov traceless dabtsi yog khoov thiab nias zaj duab xis tsim nrog lawv raws li cov khoom siv hauv paus muaj kua muag zoo, yog li nws muaj kev pabcuam siab thiab kev tiv thaiv zoo.

Cov yeeb yaj kiab tiv thaiv tsuas yog ua lub luag haujlwm tsis nyob nruab nrab ntawm qhov chaw ua haujlwm thiab lub xub pwg ntawm qhov tuag kom tiv thaiv lub siab ntawm cov tuag thiab cov ntawv hlau, txhawm rau tiv thaiv qhov cuam tshuam ntawm lub workpiece thaum khoov.Thaum siv, tsuas yog muab cov yeeb yaj kiab khoov rau ntawm qhov tuag, uas muaj qhov zoo ntawm tus nqi qis thiab siv tau yooj yim.

Tam sim no, lub thickness ntawm dabtsi yog khoov tsis cim indentation zaj duab xis nyob rau hauv kev ua lag luam feem ntau yog 0.5 hli, thiab qhov luaj li cas yuav customized raws li kev xav tau.Feem ntau, cov bending traceless indentation zaj duab xis tuaj yeem ncav cuag qhov kev pab cuam lub neej ntawm li 200 khoov raws li kev ua haujlwm ntawm 2T siab, thiab muaj cov yam ntxwv ntawm kev hnav tsis kam, muaj zog tsim kua muag, zoo heev khoov kev ua tau zoo, siab tensile zog thiab elongation ntawm tawg, tsis kam. rau lubricating roj thiab aliphatic hydrocarbon solvents.

Xaus:

Kev lag luam kev sib tw ntawm cov ntawv hlau ua kev lag luam yog nruj heev.Yog tias cov tuam txhab xav tau nyob hauv ib qho chaw hauv kev ua lag luam, lawv yuav tsum tau txhim kho cov txheej txheem ua haujlwm tas li.Peb yuav tsum tsis tsuas paub lub functionality ntawm cov khoom, tab sis kuj xav txog lub manufacturability thiab zoo nkauj ntawm cov khoom, tab sis kuj xav txog kev lag luam kev lag luam.Los ntawm kev siv cov cuab yeej siv tau zoo thiab kev lag luam, cov khoom lag luam tau yooj yim dua, kev lag luam ntau dua thiab zoo nkauj dua.(xaiv los ntawm cov ntawv hlau thiab kev tsim khoom, qhov teeb meem 7, 2018, los ntawm Chen Chongnan)

Post lub sij hawm: Feb-26-2022
Txuas cov ntaub ntawv