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Traceless bending tekinoroji yepepa simbi [mufananidzo].

Abstract: mukuita pepa simbi kupeta, tsika yekukotama nzira iri nyore kukuvadza iyo workpiece pamusoro, uye pamusoro pekubatana nefa inoumba pachena indentation kana kukwenya, izvo zvinokanganisa kunaka kwechigadzirwa.Iri bepa rinotsanangudza izvo zvinokonzeresa kupeta indentation uye mashandisirwo easina traceless bending tekinoroji.

Iyo tekinoroji yesimbi yekugadzira tekinoroji inoramba ichivandudzika, kunyanya mune mamwe maapplication akadai seyakanyatso simbi isina kubhenda, simbi isina tsvina yekukotama kupeta, aluminium alloy kupeta, zvikamu zvendege kubhenda uye kupeta ndiro yemhangura, izvo zvinowedzera kuisa mberi kwepamusoro zvinodiwa zvemhando yepamusoro yezvigadzirwa zvebasa.

Iyo yechinyakare yekukotama maitiro iri nyore kukuvadza pamusoro peiyo workpiece, uye iri pachena indentation kana kukwenya ichaumbwa pamusoro pechiso ichisangana nefa, izvo zvinokanganisa kunaka kwechigadzirwa chekupedzisira uye kuderedza kukosha kwemushandisi kutonga kwechigadzirwa. .

Panguva yekukotama, nekuti iyo simbi pepa inozoburitswa nekukotama kufa uye kuburitsa elastic deformation, nzvimbo yekubatana pakati pebepa uye kufa inotsvedza nekufambira mberi kwekukotama.Mukuita kwekukotama, iyo sheet simbi inosangana nematanho maviri akajeka e elastic deformation uye epurasitiki deformation.Mukuita kwekukotama, pachave nekumanikidza kuchengetedza maitiro (matatu-mapoinzi kusangana pakati pekufa uye simbi simbi).Naizvozvo, mushure mekunge nzira yekukotama yapedzwa, mitsetse mitatu yekumisikidza ichaumbwa.

Iyi mitsetse ye indentation inowanzo gadzirwa neextrusion friction pakati peplate neV-groove bendekete refa, saka inodaidzwa kunzi indentation yemafudzi.Sezvinoratidzwa muMufananidzo 1 uye Mufananidzo 2, zvikonzero zvikuru zvekuumbwa kwepafudzi indentation zvinogona kungoiswa muzvikamu zvinotevera.

Fig. 2 bending indentation

Fig. 1 Schematic diagram yekukotama

1. Nzira yekupeta

Sezvo chizvarwa chekudzika kwepfudzi chine hukama nekubatana pakati pesimbi simbi uye V-groove bendekete remukadzi kufa, mukukotama maitiro, mukaha uripo pakati pechibhakera uye kufa kwechikadzi unokanganisa kudzvinyirira kwesimbi simbi, uye mukana uye dhigirii re indentation ichave yakasiyana, sezvakaratidzwa muFigure 3.

Pasi pemamiriro eiyo V-groove, iyo yakakura kona yekukotama yebasa rekukotama, yakakura kuchinjika kwesimbi simbi iri kutambanudzwa, uye kureba kureba kwekukwenya kwesimbi simbi pafudzi reV-groove. ;Uyezve, iyo yakakura kona yekukotama ndeye, iyo yakareba nguva yekubata yekumanikidza kunoitwa nechibhakera papepa ichave, uye zvakanyanya kujeka indentation inokonzerwa nekubatanidzwa kwezvinhu zviviri izvi.

2. Kuumbwa kweV-groove yevakadzi kufa

Paunenge uchikotama simbi mapepa ane ukobvu hwakasiyana, iyo V-groove upamhi hwakasiyanawo.Pasi pemamiriro ezvinhu epunch imwechete, iyo yakakura kukura kweV-groove yefa, iyo yakakura kukura kwehupamhi hwekupinza.Saizvozvo, kudiki kukweshana pakati pesimbi nebendekete reV-groove yefa, uye kudzika kwemukati kunodzikira.Pane zvinopesana, iyo yakaonda iyo yakakura yeplate, iyo yakamanikana iyo V-groove, uye zvakanyanya kujeka indentation.

Kana zvasvika pakukwesha, chimwe chinhu chine chekuita nekukwesha chatinofunga kuti kukweshera.Iyo R angle yepfudzi yeV-groove yemukadzi anofa yakasiyana, uye kupesana kunokonzerwa kune pepa resimbi mukugadzirisa pepa resimbi bending kwakasiyanawo.Kune rumwe rutivi, kubva pakuona kwekumanikidzwa kunoitwa neV-groove yefa papepa, iyo yakakura R-angle yeV-groove yekufa, iyo idiki kudzvinyirira pakati pepepa nefudzi re. iyo V-groove yekufa, uye yakareruka indentation, uye zvinopesana.

3. Lubrication degree yeV-groove yevakadzi kufa

Sezvambotaurwa, pamusoro peV-groove yekufa ichasangana neshizha kuti ibudise kupokana.Kana iyo difa yapfekwa, chikamu chekusangana pakati peV-groove neshizha simbi chinozowedzera kushata, uye friction coefficient inova yakakura uye yakakura.Kana sheet simbi inotsvedza pamusoro peV-groove, kusangana pakati peV-groove neshizha simbi ndiyo chaiyo yekusangana pakati pemapundu asingaverengeki akakasharara uye nzvimbo.Nenzira iyi, kudzvinyirirwa kunobata pamusoro pepepa resimbi kuchawedzera maererano, uye indentation ichave yakanyatsojeka.

Kune rumwe rutivi, V-groove yechikadzi inofa haina kucheneswa uye kucheneswa kusati kwaitwa workpiece, iyo inowanzobudisa pachena indentation nekuda kwekubudiswa kweplate nemarara akasara paV-groove.Mamiriro ezvinhu aya anowanzo kuitika kana midziyo inokotama maworkpieces senge galvanized plate uye kabhoni simbi ndiro.

2. Kushandisa tekinoroji yekubhenda isina kutekiniki

Sezvo isu tichiziva kuti chikonzero chikuru chekukotama indentation iko kupokana pakati pesimbi simbi uye bendekete reV-groove yekufa, tinogona kutanga kubva kune chikonzero chakanangana nekufunga uye kuderedza kupokana pakati pesimbi simbi uye pfudzi. V-groove yekufa kuburikidza nekuita tekinoroji.

Zvinoenderana neiyo friction formula F = μ· N zvinogona kuoneka kuti chinhu chinokanganisa friction force ndeye friction coefficient μ Uye kumanikidza n, uye iwo anoenderana zvakananga nekukwesha.Saizvozvowo, zvirongwa zvinotevera zvinogona kugadzirwa.

1. Ipfudzi yeV-groove yefa yemukadzi inogadzirwa nezvinhu zvisiri zvesimbi

Mufananidzo 3 wekukotama mhando

Chete nekuwedzera iyo R angle yeV-groove bendekete rekufa, iyo yechinyakare nzira yekuvandudza bending indentation maitiro haina kunaka.Kubva pamaonero ekudzikisa kudzvanywa muhuviri hwekukweshana, inogona kutariswa kushandura V-groove bendekete kuita isiri-simbi yakapfava kupfuura ndiro, senge nylon, Youli glue (PU elastomer) uye zvimwe zvinhu, pa mamiriro ekuvimbisa yekutanga extrusion effect.Tichifunga kuti zvinhu izvi zviri nyore kurasikirwa uye zvinoda kutsiviwa nguva nenguva, kune akati wandei V-groove zvivakwa zvinoshandisa zvinhu izvi parizvino, sezvakaratidzwa mumufananidzo.

2. Bendekete reV-groove rekufa kwechikadzi rinoshandurwa kuita bhora uye roller chimiro

Saizvozvo, zvichibva pamusimboti wekudzikisa friction coefficient pakati pepepa neV-groove yefa, kutsvedza kunotsvedza pakati pebepa uye bendekete reV-groove yefa rinogona kushandurwa kuita rolling friction, kuitira kuti kuderedza zvakanyanya kukweshera kweshiti uye zvinobudirira kudzivirira kukotama indentation.Parizvino, iyi nzira yave ichishandiswa zvakanyanya muindasitiri yekufa, uye bhora risingaite kubhenda kufa (Fig. 5) muenzaniso wekushandisa.

Fig. 5 bhora risingaite rakakotama rinofa

Kuti udzivise kupokana kwakasimba pakati peiyo roller yebhora risingaite kubhenda kufa uye V-groove, uye zvakare kuita kuti roller ive nyore kutenderedza nekuzora mafuta, bhora rinowedzerwa, kudzikisa kudzvanywa uye kuderedza friction coefficient pa. nguva imwe chete.Naizvozvo, zvikamu zvakagadziridzwa nebhora risingaite kubhenda kufa zvinokwanisa kuwana pasina inooneka indentation, asi iyo isingateedzere kupeta mhedzisiro yemahwendefa akapfava akadai sealuminium nemhangura haina kunaka.

Kubva pamaonero ehupfumi, nekuti chimiro chebhora chisina kubhenda kufa chakaomarara kupfuura izvo zvataurwa pamusoro apa, mutengo wekugadzirisa wakakwira uye kugadzirisa kwakaoma, chinova chinhu chinofanira kutariswa nemaneja emabhizinesi pakusarudza. .

6 dhizaini yedhizaini ye-inverted V-groove

Parizvino, kune imwe mhando yekuumbwa muindasitiri, iyo inoshandisa iyo fulcrum kutenderera musimboti kuona kukotama kwezvikamu nekutenderedza bendekete rechikadzi mold.Rudzi urwu rwekufa runoshandura chinyakare V-groove chimiro chekugadzirisa kufa, uye inoseta ndege dzakarerekera kumativi ese eV-groove senzira yekuchinja.Mukuita kwekutsikirira zvinhu pasi pepunch, nzira yekushandura kumativi ose maviri epunch inoshandurwa mukati kubva kumusoro kwepunch nerubatsiro rwekumanikidza kwepunch, kuitira kukotamisa ndiro, sezvinoratidzwa mumufananidzo. .

Pasi pemamiriro ezvinhu ekushanda aya, hapana kupesana kwepanzvimbo kutsvedza pakati pesimbi uye kufa, asi padyo nendege inotenderera uye padyo neiyo vertex ye punch kudzivirira indentation yezvikamu.Chimiro cheiyi difa chakaomarara kupfuura zvakapfuura zvimiro, zvine tension spring uye turnover plate chimiro, uye mutengo wekugadzirisa uye mutengo wekugadzirisa wakakura.

Nzira dzinoverengeka dzekuita dzekuona kubhenda kusina traceless dzakaunzwa kare.Izvi zvinotevera kuenzanisa kwemaitiro aya maitiro, sezvakaratidzwa muTebhu 1.

Kuenzanisa chinhu Nylon V-groove Youli rubber V-groove Bhora rudzi V-groove Inverted V-groove Traceless Pressure firimu
Bending angle Makona akasiyana arc Makona akasiyana Kazhinji inoshandiswa pamakona chaiwo Makona akasiyana
Applicable plate Mahwendefa akasiyana-siyana Mahwendefa akasiyana-siyana 　 Mahwendefa akasiyana-siyana Mahwendefa akasiyana-siyana
Kureba muganhu ≥50mm ≥200mm ≥100mm / /
hupenyu hwebasa 15-20 zviuru gumi zvakapetwa kaviri 15-21 zviuru gumi zvakapetwa kaviri / / 200 nguva
Kutsiva kugadzirisa Tsiva musimboti wenylon Tsiva iyo Youli rubber musimboti Tsiva bhora Tsiva zvakazara kana kutsiva tension spring nezvimwe zvinhu Tsiva zvakazara
mutengo Cheap Cheap zvinodhura zvinodhura Cheap
advantage Mutengo wakaderera uye wakakodzera kusateedzera kubhenda kwemahwendefa akasiyana.Iyo yekushandisa nzira yakaenzana neiyo yakaderera inofa yeyakajairwa bending muchina. Mutengo wakaderera uye wakakodzera kusateedzera kubhenda kwemahwendefa akasiyana. Hupenyu hurefu hwebasa Inoshandiswa kune akasiyana-siyana mahwendefa ane maitiro akanaka. Mutengo wakaderera uye wakakodzera kusateedzera kubhenda kwemahwendefa akasiyana.Iyo yekushandisa nzira yakaenzana neiyo yakaderera inofa yeyakajairwa bending muchina.
miganhu Hupenyu hwesevhisi ipfupi pane yakajairwa kufa, uye saizi yechikamu inogumira kupfuura 50mm. Parizvino, inongoshanda kune isingateveri kubhenda kwe denderedzwa arc zvigadzirwa. Mutengo wacho unodhura uye mhedzisiro pazvinhu zvinyoro zvakaita sealuminium nemhangura hazvina kunaka.Nekuti kukweshera kwebhora uye deformation yakaoma kudzora, maronda anogona zvakare kugadzirwa pane mamwe mahwendefa akaoma.Pane zvakawanda zvinorambidzwa pakureba uye notch. Mutengo wacho unodhura, chiyero chekushandisa idiki, uye kureba uye notch zvinoganhurira Hupenyu hwesevhisi hupfupi pane mamwe marongero, kutsiva kunowanzo kunokanganisa kugadzirwa kwekugadzira, uye mutengo unowedzera zvakanyanya kana uchishandiswa muhuwandu hukuru.

 

Tafura 1 Kufananidzwa kwemaitiro ekubhenda asina kutevedzwa

4. V-groove yefa inoparadzaniswa kubva kune pepa resimbi (iyi nzira inokurudzirwa)

Idzi nzira dzataurwa pamusoro ndedzekuona kubhenda kusina traceless nekushandura kufa kubhenda.Kune mamaneja emabhizinesi, hazvikurudzirwe kugadzira uye kutenga seti yevatsva vanofa kuti vaone kubhenda kusingaite kwezvikamu zvega.Kubva pakuona kwekukakavadzana, kukweshana hakupo chero bedzi kufa neshizha zvaparadzaniswa.

Naizvozvo, pane chirevo chekusachinja kubhenda kufa, kubhenda kusingaite kunogona kuitika nekushandisa firimu rakapfava kuitira kuti pasave nekubatana pakati peV-groove yekufa uye simbi simbi.Iyi firimu yakapfava inonziwo bending indentation free film.Zvishandiso zvacho zvinowanzo rabha, PVC (polyvinyl chloride), PE (polyethylene), PU (polyurethane), nezvimwe.

Zvakanakira rabha uye PVC mutengo wakaderera wezvigadzirwa, nepo zvisizvo hazvina kumanikidzwa kuramba, kusaita zvakanaka kwekudzivirira uye hupenyu hupfupi hwebasa;PE nePu zvinhu zveinjiniya zvine mashandiro akanaka.Iyo isingateedzere yekukotama uye yekutsikirira firimu inogadzirwa navo sezvo base zvinhu zvine yakanaka kubvarura kuramba, saka ine hupenyu hwesevhisi yepamusoro uye kuchengetedzwa kwakanaka.

Iyo yekubhenda inodzivirira firimu inonyanya kuita basa rebuffer pakati pechishandiso uye bendekete refa kuti ribvise kudzvanywa pakati pekufa uye simbi simbi, kuitira kudzivirira indentation yeworkpiece panguva yekukotama.Paunenge uchishandiswa, ingoisa firimu rekupeta pakufa, iro rine zvakanakira mutengo wakaderera uye nyore kushandisa.

Parizvino, ukobvu hwekukotama kusacherekedza indentation firimu pamusika kazhinji 0.5mm, uye saizi inogona kugadzirwa zvinoenderana nezvinodiwa.Kazhinji, bhaisikopo rekubhenda risingaverengeki rinopinza rinogona kusvika kuhupenyu hwesevhisi hunosvika mazana maviri ekukotama pasi pemamiriro ekushanda e200 kudzvanywa, uye ine hunhu hwekuramba kupfeka kwakasimba, kuramba kwakasimba kubvarura, kuita kwakanakisa kwekukotama, kusimba kwesimba uye kureba panguva yekuzorora, kuramba. kumafuta ekuzora uye aliphatic hydrocarbon solvents.

Mhedziso:

Makwikwi emusika weshizha simbi yekugadzirisa indasitiri anotyisa.Kana mabhizinesi achida kutora nzvimbo mumusika, anofanirwa kugara achivandudza tekinoroji yekugadzirisa.Hatifanire kungoona kushanda kwechigadzirwa, asi zvakare funga nezve manufacturability uye aesthetics yechigadzirwa, asi zvakare funga nezve hupfumi hwekugadzirisa.Kuburikidza nekushandiswa kwehunyanzvi uye hwehupfumi tekinoroji, chigadzirwa chiri nyore kugadzirisa, zvakanyanya hupfumi uye zvakanyanya kunaka.(yakasarudzwa kubva papepa simbi uye kugadzira, chinyorwa 7, 2018, naChen Chongnan)

Nguva yekutumira: Feb-26-2022
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