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Ubuchwepheshe bokugoba obungalandeleki beshidi lensimbi [umfanekiso].

I-Abstract: enkambisweni yokugoba kweshidi lensimbi, inqubo yokugoba yendabuko kulula ukulimaza indawo yokusebenza, futhi ubuso obuthintana nefa buzokwenza ukuhlehlisa okusobala noma ukuklwebheka, okuzothinta ubuhle bomkhiqizo.Leli phepha lizochaza kabanzi ngezimbangela zokugoba ukuhlehlisa kanye nokusetshenziswa kobuchwepheshe bokugoba obungalandeleki.

Ubuchwepheshe bokucubungula insimbi yeshidi buqhubeka buthuthuka, ikakhulukazi kwezinye izinhlelo zokusebenza ezifana nokugoba okunembayo kwensimbi engagqwali, ukugoba kwensimbi engagqwali, ukugoba ingxubevange ye-aluminium, izingxenye zendiza zokugoba nokugoba kwepuleti lethusi, okubeka phambili izidingo eziphakeme zekhwalithi engaphezulu yezingxenye zokusebenza ezakhiwe.

Inqubo yokugoba yendabuko kulula ukulimaza ingaphezulu le-workpiece, futhi ukuhlehlisa okusobala noma ukuklwebheka kuyokwenziwa endaweni lapho kuthintana nefa, okuzothinta ubuhle bomkhiqizo wokugcina futhi kunciphise ukwahlulela kwenani lomsebenzisi komkhiqizo. .

Ngesikhathi sokugoba, ngenxa yokuthi ishidi lensimbi lizokhishwa ngokufa okugobayo futhi likhiqize ukuguquguquka okunwebekayo, indawo yokuxhumana phakathi kweshidi kanye nefayizi izoshelela ngokuqhubeka kwenqubo yokugoba.Enqubweni yokugoba, insimbi yeshidi izobhekana nezigaba ezimbili ezisobala zokuguqulwa kwe-elastic kanye ne-plastic deformation.Enqubweni yokugoba, kuzoba nenqubo yokulondoloza ingcindezi (ukuxhumana kwamaphuzu amathathu phakathi kwe-die kanye neshidi lensimbi).Ngakho-ke, ngemva kokuqedwa kwenqubo yokugoba, kuzokwakhiwa imigqa emithathu yokuhlehlisa.

Le migqa yokuhlehlisa ngokuvamile ikhiqizwa ukungqubuzana kwe-extrusion phakathi kwepuleti kanye nehlombe le-V-groove le-die, ngakho-ke ibizwa ngokuthi i-shoulder indentation.Njengoba kuboniswe ku-Figure 1 naku-Figure 2, izizathu eziyinhloko zokubunjwa kwe-indentation yehlombe zingahlukaniswa kalula zibe yizigaba ezilandelayo.

Fig. 2 ukuhlehlisa ukugoba

Umdwebo 1 Umdwebo wohlelo lokugoba

1. Indlela yokugoba

Njengoba isizukulwane se-indentation yehlombe sihlobene nokuxhumana phakathi kweshidi lensimbi kanye nehlombe le-V-groove lefa lensikazi, enqubweni yokugoba, igebe phakathi kwe-punch nokufa kowesifazane lizothinta ingcindezi ecindezelayo yeshidi lensimbi, futhi amathuba nezinga lokuhlehlisa lizohluka, njengoba kuboniswe kuMfanekiso 3.

Ngaphansi kwesimo se-V-groove efanayo, iba nkulu i-engeli egobayo yocezu lokusebenza olugobayo, iba nkulu ukuguquguquka komumo weshidi lensimbi elelulwayo, kanye nebanga lokungqubuzana libe lide leshidi lensimbi ehlombe le-V-groove. ;Ngaphezu kwalokho, uma i-engeli yokugoba iba nkulu, isikhathi sokubamba sokucindezela okwenziwa isibhakela eshidini sizoba side, futhi okusobala nakakhulu ukuhlehlisa okubangelwa ukuhlanganiswa kwalezi zici ezimbili.

2. Ukwakheka V-groove of female die

Lapho ugoba amashidi ensimbi anobukhulu obuhlukile, ububanzi be-V-groove bubuye buhluke.Ngaphansi kwesimo se-punch efanayo, ubukhulu obukhulu be-V-groove ye-die, ubukhulu obukhulu bobubanzi bokungena.Ngokuvumelana nalokho, kuncane ukungqubuzana phakathi kweshidi lensimbi nehlombe le-V-groove of the die, kanye nokujula kokuhlehlisa ngokwemvelo kuncipha.Ngokuphambene nalokho, ukuqina kwepuleti kuyancipha, i-V-groove iba mncane, futhi i-indentation ibonakala ngokucacile.

Uma kukhulunywa ngokungqubuzana, enye into ehlobene nokungqubuzana esiyicabangayo i-coefficient yokushayisana.I-angle engu-R yehlombe le-V-groove ye-female die ihlukile, futhi ukungqubuzana okubangelwa ensimbi yeshidi ngesikhathi sokugoba kweshidi lensimbi nakho kuhlukile.Ngakolunye uhlangothi, ngokombono wengcindezi ekhishwa i-V-groove yokufa eshidini, inkulu i-R-engeli ye-V-groove ye-die, ingcindezi encane phakathi kweshidi nehlombe i-V-groove of the die, kanye ne-indentation elula, futhi ngokuphambene nalokho.

3. I-Lubrication degree of V-groove of female die

Njengoba kushiwo ngaphambili, ubuso be-V-groove of the die buzothintana neshidi ukukhiqiza ukungqubuzana.Uma idayizi igqokwa, ingxenye yokuxhumana phakathi kwe-V-groove neshidi lensimbi izoba mahle futhi ibe mabi, futhi i-coefficient yokushayisana izoba mkhulu futhi ibe mkhulu.Uma insimbi yeshidi islayida phezu kwe-V-groove, ukuthintana phakathi kwe-V-groove neshidi lensimbi empeleni kuwukuthintana kwephoyinti phakathi kwamaqhubu angenakubalwa kanye nezindawo.Ngale ndlela, ingcindezi esebenza ebusweni beshidi lensimbi izokhula ngokufanele, futhi ukuhlehlisa kuzoba sobala kakhulu.

Ngakolunye uhlangothi, i-V-groove yefa lensikazi ayisulwa futhi ihlanzwe ngaphambi kokuba i-workpiece igotshwe, evame ukukhiqiza i-indentation esobala ngenxa yokukhishwa kwepuleti ngemfucumfucu esele ku-V-groove.Lesi simo sivamise ukwenzeka lapho okokusebenza kugoba izinto zokusebenza njengepuleti likathayela nepuleti lensimbi ye-carbon.

2. Ukusetshenziswa kobuchwepheshe bokugoba obungalandeleki

Njengoba sazi ukuthi imbangela eyinhloko yokugoba ukugoba ukungqubuzana phakathi kweshidi lensimbi kanye nehlombe le-V-groove of the die, singaqala ngesizathu sokucabanga okugxile futhi sinciphise ukungqubuzana phakathi kweshidi lensimbi nehlombe I-V-groove ye-die through process technology.

Ngokwefomula yokungqubuzana F= μ· N kungabonakala ukuthi isici esithinta amandla okungqubuzana i-coefficient ye-friction μ Nokucindezela n, futhi alingana ngokuqondile nokungqubuzana.Ngokufanelekile, lezi zinhlelo zezinqubo ezilandelayo zingakhiwa.

1. Ihlombe le-V-groove ye-female die lenziwe ngezinto ezingezona ezensimbi

Umfanekiso 3 uhlobo lokugoba

Kuphela ngokukhulisa i-engeli engu-R yehlombe le-V-groove le-die, indlela evamile yokuthuthukisa umphumela wokugoba wokuhlehlisa ayinkulu.Ngokombono wokunciphisa ingcindezi kupheya yokungqubuzana, kungabhekwa njengokushintsha ihlombe le-V-groove libe into engeyona eyensimbi ethambile kunepuleti, njengenayiloni, i-Youli glue (PU elastomer) nezinye izinto, Isisekelo sokuqinisekisa umphumela wokuqala we-extrusion.Uma kucatshangelwa ukuthi lezi zinto zilahleka kalula futhi zidinga ukushintshwa njalo, kunezakhiwo ezimbalwa ze-V-groove ezisebenzisa lezi zinto njengamanje, njengoba kuboniswe kuMfanekiso.

2. Ihlombe le-V-groove of female die liguqulwa libe yibhola kanye nesakhiwo se-roller

Ngokufanayo, ngokususelwe kumgomo wokunciphisa i-coefficient yokungqubuzana phakathi kweshidi kanye ne-V-groove of the die, ukungqubuzana okuslayidayo phakathi kweshidi nehlombe le-V-groove of the die kungashintshwa kube ukungqubuzana, ukuze ukunciphisa kakhulu ukungqubuzana kweshidi futhi ugweme ngokuphumelelayo ukugoba ukugoba.Njengamanje, le nqubo isetshenziswe kabanzi embonini yokufa, futhi i-ball traceless bending die (Fig. 5) iyisibonelo esivamile sesicelo.

I-Fig. 5 ibhola eligobayo elingalandeleki liyafa

Ukuze ugweme ukungqubuzana okuqinile phakathi kwe-roller yebhola egobayo engalandeleki kanye ne-V-groove, futhi nokwenza i-roller ibe lula ukuzungezisa nokugcoba, ibhola liyanezelwa, ukuze kwehliswe ingcindezi futhi kuncishiswe i-coefficient yokungqubuzana ngesikhathi esifanayo.Ngakho-ke, izingxenye ezicutshungulwa yi-ball traceless goving die ngokuyisisekelo azikwazi ukuzuza ukuhlehlisa okubonakalayo, kodwa umphumela wokugoba ongenakulandelwa wamapuleti athambile njenge-aluminium nethusi awumuhle.

Ngokombono wezomnotho, ngenxa yokuthi ukwakheka kwebhola eligobayo liyinkimbinkimbi kakhulu kunezakhiwo ezibalulwe ngenhla, izindleko zokucubungula ziphezulu futhi ukunakekelwa kunzima, okuyisici futhi okufanele sicatshangelwe abaphathi bebhizinisi lapho kukhethwa. .

6 umdwebo wesakhiwo we-V-groove ehlanekezelwe

Njengamanje, kunolunye uhlobo lwesikhunta embonini, esisebenzisa isimiso sokujikeleza kwe-fulcrum ukuze sibone ukugoba kwezingxenye ngokuphendula ihlombe lesikhunta sesifazane.Lolu hlobo lokufa lushintsha ukwakheka kwe-V-groove evamile kwesilungiselelo sokufa, futhi kusetha izindiza ezithambekele kuzo zombili izinhlangothi ze-V-groove njengendlela yokwenza inzuzo.Enkambweni yokucindezela impahla ngaphansi kwe-punch, indlela yokuguqula izinhlangothi zombili ze-punch iphendulelwa ngaphakathi ukusuka phezulu kwe-punch ngosizo lokucindezela kwe-punch, ukuze ugobe ipuleti, njengoba kuboniswe ku-Fig. .

Ngaphansi kwalesi simo sokusebenza, akukho ukungqubuzana okusobala kwendawo okuslayidayo phakathi kweshidi lensimbi kanye ne-die, kodwa eduze kwendiza ephendukayo futhi eduze ne-vertex ye-punch ukugwema ukuhlehlisa izingxenye.Isakhiwo salokhu kufa siyinkimbinkimbi kakhulu kunezakhiwo zangaphambilini, ne-tension spring kanye nesakhiwo sepuleti lenzuzo, futhi izindleko zokulungisa kanye nezindleko zokucubungula zinkulu.

Izindlela ezimbalwa zezinqubo zokubona ukugoba okungenamkhondo zethulwe ngaphambili.Okulandelayo ukuqhathanisa lezi zindlela zenqubo, njengoba kuboniswe kuThebula 1.

Into yokuqhathanisa Inayiloni V-groove I-V-groove yerabha ye-Youli Uhlobo lwebhola V-groove I-V-groove ehlanekezelwe Ifilimu ye-Traceless Pressure
I-angle yokugoba Ama-engeli ahlukahlukene i-arc Ama-engeli ahlukahlukene Ngokuvamile isetshenziswa kuma-engeli alungile Ama-engeli ahlukahlukene
Ipuleti elisebenzayo Amapuleti ahlukahlukene Amapuleti ahlukahlukene 　 Amapuleti ahlukahlukene Amapuleti ahlukahlukene
Umkhawulo wobude ≥50mm ≥200mm ≥100mm / /
impilo yesevisi 15-20 izikhathi eziyizinkulungwane eziyishumi 15-21 izikhathi eziyizinkulungwane eziyishumi / / izikhathi ezingu-200
Ukulungiswa kokushintshwa Faka esikhundleni indikimba yenayiloni Shintshanisa i-Youli rubber core Shintshanisa ibhola Faka esikhundleni sesisonke noma shintsha isiphethu somfutho nezinye izesekeli Faka esikhundleni sesisonke
izindleko Kushibhile Kushibhile kuyabiza kuyabiza Kushibhile
inzuzo Izindleko eziphansi futhi ilungele ukugoba okungenamkhondo kwamapuleti ahlukahlukene.Indlela yokusebenzisa ilingana nefa eliphansi lomshini wokugoba ojwayelekile. Izindleko eziphansi futhi ilungele ukugoba okungenamkhondo kwamapuleti ahlukahlukene. Impilo ende yesevisi Isebenza ezinhlobonhlobo zamapuleti ezinomphumela omuhle. Izindleko eziphansi futhi ilungele ukugoba okungenamkhondo kwamapuleti ahlukahlukene.Indlela yokusebenzisa ilingana nefa eliphansi lomshini wokugoba ojwayelekile.
ukulinganiselwa impilo yesevisi ifushane kune-standard die, futhi usayizi wesegimenti ukhawulelwe ngaphezu kuka-50mm. Njengamanje, kusebenza kuphela ekugobeni okungenamkhondo kwemikhiqizo ye-arc eyindilinga. Izindleko ziyabiza futhi umphumela ezintweni ezithambile ezifana ne-aluminium nethusi awumuhle.Ngenxa yokuthi kunzima ukulawula ukungqubuzana kwebhola nokuguqulwa, imikhondo ingase ikhiqizwe kwamanye amapuleti aqinile.Kunemikhawulo eminingi ngobude ne-notch. Izindleko ziyabiza, ububanzi bokufaka isicelo buncane, futhi ubude nenotshi kuyakhawulela Ukuphila kwesevisi kufushane kunezinye izinhlelo, ukushintshwa okuvamile kuthinta ukusebenza kahle kokukhiqiza, futhi izindleko zikhuphuka kakhulu uma zisetshenziswe ngobuningi.

 

Ithebula 1 Ukuqhathaniswa kwezinqubo zokugoba ezingenamkhondo

4. I-V-groove ye-die ihlukaniswe nensimbi yeshidi (le ndlela iyanconywa)

Izindlela ezishiwo ngenhla ziwukubona ukugoba okungenamkhondo ngokushintsha idayi yokugoba.Kubaphathi bebhizinisi, akukhuthazwa ukuthi kuthuthukiswe futhi kuthengwe isethi yama-dies amasha ukuze kubonakale ukugoba okungenamkhondo kwezingxenye ngazinye.Ngokombono wokuthintana kwe-friction, ukungqubuzana akukho inqobo nje uma idayi neshidi kuhlukanisiwe.

Ngakho-ke, ngesisekelo sokungashintshi ukufa okugobayo, ukugoba okungenamkhondo kungabonakala ngokusebenzisa ifilimu elithambile ukuze kungabikho ukuthintana phakathi kwe-V-groove yokufa kanye neshidi lensimbi.Lolu hlobo lwefilimu ethambile lubizwa nangokuthi ifilimu yamahhala yokugoba.Izinto ezisetshenziswayo ngokuvamile ziyirabha, i-PVC (i-polyvinyl chloride), i-PE (i-polyethylene), i-PU (i-polyurethane), njll.

Izinzuzo zenjoloba kanye ne-PVC yizindleko eziphansi zezinto zokusetshenziswa, kuyilapho ububi bungekho ukumelana nokucindezela, ukusebenza kabi kokuvikela kanye nempilo yesevisi emfushane;I-PE ne-Pu yizinto zobunjiniyela ezisebenza kahle kakhulu.Ifilimu yokugoba nokucindezela okungalandeleki ekhiqizwe nazo njengoba izinto eziyisisekelo zinokuphikiswa okuhle kwezinyembezi, ngakho-ke inokuphila kwenkonzo ephezulu nokuvikelwa okuhle.

Ifilimu yokuvikela egobayo ikakhulukazi idlala indima yesivikelo phakathi kocezu lokusebenza kanye nehlombe lefasi ukuze kuncishiswe ingcindezi phakathi kwedayizi neshidi lensimbi, ukuze kuvinjwe ukuhlehla kwesiqeshana sokusebenza ngesikhathi sokugoba.Uma isetshenziswa, vele ubeke ifilimu egobayo ku-die, enezinzuzo zezindleko eziphansi nokusetshenziswa okulula.

Njengamanje, ubukhulu befilimu yokugoba engaphawuli emakethe ngokuvamile ingu-0.5mm, futhi usayizi ungenziwa ngokwezifiso kuye ngezidingo.Ngokuvamile, ifilimu egobayo yokuhlehlisa ingafinyelela impilo yesevisi cishe engama-200 egoba ngaphansi kwesimo sokusebenza sengcindezi engu-2T, futhi inezici zokumelana nokugqokwa okuqinile, ukumelana nokukhala okuqinile, ukusebenza kahle kokugoba, amandla aqine kakhulu nokunwebeka ngesikhathi sekhefu, ukumelana. uwoyela wokugcoba kanye nezincibilikisi ze-aliphatic hydrocarbon.

Isiphetho:

Ukuncintisana kwemakethe yemboni yokucubungula insimbi kushubile kakhulu.Uma amabhizinisi efuna ukuthatha indawo emakethe, adinga ukuthuthukisa njalo ubuchwepheshe bokucubungula.Akufanele siqaphele kuphela ukusebenza komkhiqizo, kodwa futhi sicabangele ukwenziwa kanye nobuhle bomkhiqizo, kodwa futhi sicabangele umnotho wokucubungula.Ngokusetshenziswa kobuchwepheshe obusebenza kahle futhi obuyongayo, umkhiqizo kulula ukuwucubungula, ukonga kakhulu futhi muhle kakhulu.(kukhethwe eshidini lensimbi nokukhiqiza, kukhishwe ngomhla ka-7, 2018, ngu-Chen Chongnan)

Isikhathi sokuthumela: Feb-26-2022
Namathisela Amafayela