Abstract: kwinkqubo yokugoba sheet metal, inkqubo ukugoba yemveli kulula ukonakalisa umphezulu workpiece, kwaye umphezulu ukudibana kunye kufa kuya kwenza indentation ecacileyo okanye umkrwelo, nto leyo eya kuchaphazela ubuhle imveliso.Eli phepha liza kunika iinkcukacha ngezizathu zokugoba ukugoba kunye nokusetyenziswa kobugcisa bokugoba obungenamkhondo.
Itekhnoloji yokucubungula isinyithi iqhubeka iphucuka, ngakumbi kwezinye izicelo ezinje ngokuchaneka ukugoba kwentsimbi engenasiphene, ukugoba kwentsimbi engatyiwayo, ukugoba kwealluminiyam, ukugoba iindawo zenqwelomoya kunye nokugoba kwepleyiti yobhedu, ethi ibeke phambili iimfuno eziphezulu zomgangatho womphezulu wezixhobo zokusebenza ezenziweyo.
Inkqubo yokugoba yemveli kulula ukonakalisa umphezulu workpiece, kwaye i indentation ecacileyo okanye umkrwelo uya kwenziwa phezu komphezulu ukudibana kufa, nto leyo eya kuchaphazela ubuhle imveliso yokugqibela kunye nokunciphisa umgwebo ixabiso lomsebenzisi imveliso. .
Ngexesha lokugoba, ngenxa yokuba i-sheet yentsimbi iya kukhutshelwa ngokugoba ukufa kwaye ivelise i-deformation elastic, indawo yokudibanisa phakathi kweshidi kunye ne-die iya kutyibilika kunye nenkqubela phambili yenkqubo yokugoba.Kwinkqubo yokugoba, i-sheet sheet iya kufumana izigaba ezibini ezicacileyo ze-elastic deformation kunye ne-plastic deformation.Kwinkqubo yokugoba, kuya kuba nenkqubo yokugcina uxinzelelo (uqhagamshelwano lwamanqaku amathathu phakathi kwe-die kunye ne-sheet metal).Ngoko ke, emva kokuba inkqubo yokugoba igqityiwe, imigca emithathu yokufakela iya kwenziwa.
Le migca ye-indentation iveliswa ngokubanzi yi-friction extrusion phakathi kwepleyiti kunye negxalaba le-V-groove ye-die, ngoko ke zibizwa ngokuba yi-shoulder indentation.Njengoko kuboniswe kwi-Figure 1 kunye ne-Figure 2, izizathu eziphambili zokubunjwa kwe-indentation yamagxa zingahlelwa ngokulula kwiindidi ezilandelayo.
![Itekhnoloji yokugoba engalandelekiyo yeshiti lentsimbi [umfanekiso] (6)](http://www.lambertzs.com/uploads/Traceless-bending-technology-of-sheet-metal-illustration-6.jpg)
Umzobo we-2 ukugoba ukujongwa
![Itekhnoloji yokugoba engalandelekiyo yeshiti lentsimbi [umfanekiso] (1)](http://www.lambertzs.com/uploads/Traceless-bending-technology-of-sheet-metal-illustration-1.jpg)
Umzobo 1 Umzobo weSchematic wokugoba
1. Indlela yokugoba
Ekubeni isizukulwana se-indentation yegxalaba sinxulumene noqhagamshelwano phakathi kwe-sheet metal kunye ne-V-groove egxalabeni lokufa kwabasetyhini, kwinkqubo yokugoba, umsantsa phakathi kwe-punch kunye nowasetyhini uya kuchaphazela uxinzelelo loxinzelelo lweshiti lesinyithi, kunye nokuba nokwenzeka kunye neqondo lokuhlehla liya kwahluka, njengoko kubonisiwe kuMfanekiso 3.
Ngaphantsi kwemeko ye-V-groove enye, inkulu i-angle yokugoba ye-workpiece yokugoba, inkulu ukuguquguquka kweshidi lesinyithi esolulwayo, kunye nomgama wokukhuhlana weshidi lesinyithi egxalabeni le-V-groove. ;Ngaphezu koko, i-angle enkulu yokugoba, ixesha elide lokubamba uxinzelelo oluqhutywe yi-punch kwiphepha liya kuba, kwaye ngokucacileyo ukunyanzeliswa okubangelwa ukudibanisa kwezi zinto zimbini.
2. Ubume be-V-groove of female die
Xa ugoba amaphepha esinyithi anobunzima obuhlukeneyo, ububanzi be-V-groove bukwahluke.Ngaphantsi kwemeko ye-punch efanayo, ubukhulu obukhulu be-V-groove ye-die, ubukhulu obukhulu bobubanzi bokungena.Ngokuhambelanayo, i-friction encinci phakathi kweshidi lesinyithi kunye negxalaba le-V-groove ye-die, kunye nobunzulu be-indentation ngokwemvelo buyancipha.Ngokuchasene noko, i-plate thick thick, i-V-groove iyancipha, kwaye i-indentation ibonakala ngokucacileyo.
Xa kufikwa kwingxabano, enye into enxulumene nokukhuhlana esicinga ukuba yi-coefficient yokukhuhlana.I-angle ye-R yegxalaba le-V-groove ye-female yokufa iyahluka, kwaye ukungqubuzana okubangelwa kwiphepha lesinyithi kwinkqubo yokugoba i-sheet metal kuhluke.Kwelinye icala, ngokwembono yoxinzelelo olwenziwa yi-V-groove ye-die kwiphepha, i-R-angle enkulu ye-V-groove ye-die, incinci yoxinzelelo phakathi kweshiti kunye negxalaba. i-V-groove ye-die, kunye ne-indentation elula, kwaye ngokuphambeneyo.
3. Iqondo lokuthanjiswa kwe-V-groove yokufa kwabasetyhini
Njengoko kukhankanyiwe ngaphambili, umphezulu we-V-groove we-die uya kuqhagamshelana nephepha ukuvelisa ukungqubuzana.Xa idayiti inxitywe, indawo yokudibanisa phakathi kwe-V-groove kunye ne-sheet metal iya kuba rhabaxa kwaye irhabaxa, kwaye i-coefficient yefriction iya kuba nkulu kwaye ibe nkulu.Xa sheet metal isilayidi kumphezulu V-groove, uqhagamshelwano phakathi V-groove kunye sheet metal eneneni point uqhagamshelwano phakathi amaqhuma ezingenakubalwa rough kunye nemiphezulu.Ngale ndlela, uxinzelelo olusebenza kumphezulu we-sheet sheet luya kwanda ngokufanelekileyo, kwaye ukunyanzeliswa kuya kubonakala ngakumbi.
Ngakolunye uhlangothi, i-V-groove ye-female die ayisulwa kwaye icocwe ngaphambi kokuba i-workpiece igobe, ehlala ivelisa i-indentation ecacileyo ngenxa yokukhutshwa kwepleyiti yi-debris eseleyo kwi-V-groove.Le meko idla ngokwenzeka xa isixhobo sigoba ii-workpieces ezifana nepleyiti efakwe igalvanized and carbon steel plate.
2, Ukusetyenziswa kobugcisa bokugoba obungalandelekiyo
Kuba sisazi ukuba oyena nobangela wokugoba ukugoba kukungqubana phakathi kweshiti lentsimbi kunye negxalaba le-V-groove yokufa, sinokuqala ukusuka kwisizathu esijolise ekucingeni kwaye sinciphise ukungqubana phakathi kweshiti lentsimbi kunye negxalaba lesixhobo. I-V-groove yokufa ngokusebenzisa iteknoloji yenkqubo.
Ngokwefomula yokukhuhlana F= μ· N kunokubonwa ukuba into echaphazela amandla okukhuhlana yi-coefficient ye-friction μ kunye noxinzelelo n, kwaye zihambelana ngokuthe ngqo kwi-friction.Ngokufanelekileyo, ezi nkqubo zenkqubo zilandelayo zinokuqulunqwa.
![Itekhnoloji yokugoba engalandelekiyo yeshiti lentsimbi [umfanekiso] (2)](http://www.lambertzs.com/uploads/Traceless-bending-technology-of-sheet-metal-illustration-2.jpg)
1. Igxalaba le-V-groove ye-female die lenziwe ngezinto ezingezizo zetsimbi
Umzobo 3 uhlobo lokugoba
Kuphela ngokunyusa i-angle ye-R yegxalaba le-V-groove yokufa, indlela yendabuko yokuphucula impembelelo yokugoba yokugoba ayikho enkulu.Ukusuka kwimbono yokunciphisa uxinzelelo kwisibini sokukhuhlana, kunokuqwalaselwa ukutshintsha igxalaba le-V-groove libe yinto engeyiyo eyentsimbi ethambileyo kuneplate, njengenayiloni, i-Youli glue (PU elastomer) kunye nezinye izinto, isiseko sokuqinisekisa isiphumo sokuqala se-extrusion.Ukuqwalasela ukuba ezi zixhobo zilula ukulahleka kwaye zifuna ukutshintshwa rhoqo, kukho izakhiwo ezininzi ze-V-groove ezisebenzisa ezi zixhobo ngoku, njengoko kubonisiwe kuMfanekiso.
![Itekhnoloji yokugoba engalandelekiyo yeshiti lentsimbi [umfanekiso] (3)](http://www.lambertzs.com/uploads/Traceless-bending-technology-of-sheet-metal-illustration-3.jpg)
2. Igxalaba le-V-groove yokufa kwabasetyhini liguqulwa libe yibhola kunye nesakhiwo se-roller
Ngokufanayo, ngokusekwe kumgaqo wokunciphisa i-friction coefficient phakathi kweshiti kunye ne-V-groove of die, i-sliding friction phakathi kwephepha kunye negxalaba le-V-groove of die inokuguqulwa ibe yi-rolling friction, ukuze ukunciphisa kakhulu ukukhuhlana kwephepha kwaye ngokufanelekileyo uphephe ukugoba ukugoba.Okwangoku, le nkqubo isetyenziswe ngokubanzi kwishishini lokufa, kwaye i-ball traceless bending die (Fig. 5) ngumzekelo wesicelo esiqhelekileyo.
![Itekhnoloji yokugoba engalandelekiyo yeshiti lentsimbi [umfanekiso] (4)](http://www.lambertzs.com/uploads/Traceless-bending-technology-of-sheet-metal-illustration-4.jpg)
Umzobo 5 iibhola ezigobayo ezingalandelekiyo ziyafa
Ukuze ugweme ukungqubuzana okuqinileyo phakathi kwe-roller yebhola egoba i-traceless ifa kunye ne-V-groove, kunye nokwenza i-roller ibe lula ukujikeleza kunye nokuthambisa, ibhola yongezwa, ukuze kuncitshiswe uxinzelelo kunye nokunciphisa i-coefficient ye-friction at. kwangelo xesha.Ke ngoko, iindawo ezicutshungulwa yibhola egobayo engalandelekiyo ngokusisiseko ayinakufikelela kwi-indentation ebonakalayo, kodwa isiphumo sokugoba esingalandelekiyo samacwecwe athambileyo anjenge-aluminium kunye nobhedu ayilunganga.
Ngokwembono yoqoqosho, ngenxa yokuba ulwakhiwo lwebhola lokugoba olungenamkhondo lunzima ngakumbi kunezakhiwo zokufa ezikhankanywe ngasentla, iindleko zokusetyenzwa ziphezulu kwaye ukugcinwa kunzima, okukwayinto ekufuneka iqwalaselwe ngabaphathi beshishini xa ukhetha. .
![Itekhnoloji yokugoba engalandelekiyo yeshiti lentsimbi [umfanekiso] (5)](http://www.lambertzs.com/uploads/Traceless-bending-technology-of-sheet-metal-illustration-5.jpg)
I-6 yesakhiwo somzobo we-V-groove eguquliweyo
Okwangoku, kukho olunye uhlobo lokungunda kwishishini, esebenzisa umgaqo-siseko wokujikeleza kwe-fulcrum ukuqonda ukugoba kwamalungu ngokuguqula igxalaba lokungunda kwabasetyhini.Olu hlobo lokufa lutshintsha ulwakhiwo lwemveli lwe-V-groove ye-setting die, kwaye luseta iinqwelomoya ezithambekele kumacala omabini e-V-groove njengendlela yokuguqula.Kwinkqubo yokucinezela izinto phantsi kwe-punch, indlela yokuguqula i-turnover kumacala omabini e-punch iguqulelwe ngaphakathi ukusuka phezulu kwi-punch ngoncedo loxinzelelo lwe-punch, ukuze ugobe ipleyiti, njengoko kuboniswe kumfanekiso. .
Ngaphantsi kwalo mqathango wokusebenza, akukho nto icacileyo ye-sliding yendawo phakathi kwe-sheet metal kunye ne-die, kodwa kufuphi ne-plane yokujika kwaye isondele kwi-vertex ye-punch ukuphepha ukunyanzeliswa kwamacandelo.Ulwakhiwo lwalo kufa luntsonkothe ngakumbi kunezakhiwo zangaphambili, kunye nentwasahlobo yoxinzelelo kunye nesakhiwo sepleyiti yenguqu, kunye neendleko zokugcina kunye neendleko zokusetyenzwa zinkulu.
Iindlela ezininzi zenkqubo yokuqonda ukugoba okungalandelekiyo ziye zaziswa ngaphambili.Oku kulandelayo luthelekiso lwezi ndlela zenkqubo, njengoko kubonisiwe kwiThebhile yoku-1.
| Into yokuthelekisa | Inayiloni V-groove | Youli irabha V-groove | Ibhola uhlobo V-groove | I-V-groove eguqulweyo | Ifilimu yoxinzelelo olungenamkhondo |
| Ukugoba i-engile | Ii-engile ezahlukeneyo | arc | Ii-engile ezahlukeneyo | Idla ngokusetyenziswa kwii-engile ezichanekileyo | Ii-engile ezahlukeneyo |
| Ipleyiti esebenzayo | Iipleyiti ezahlukeneyo | Iipleyiti ezahlukeneyo | Iipleyiti ezahlukeneyo | Iipleyiti ezahlukeneyo | |
| Umda wobude | ≥50mm | ≥200mm | ≥100mm | / | / |
| ubomi benkonzo | 15-20 Ishumi lamawaka amaxesha | 15-21 Ishumi lamawaka amaxesha | / | / | 200 amaxesha |
| Ukulungiswa kokutshintshwa | Buyisela undoqo wenayiloni | Buyisela undoqo werabha we-Youli | Faka enye indawo yebhola | Faka endaweni yonke okanye utshintshe intwasahlobo yoxinzelelo kunye nezinye izixhobo | Faka endaweni yakho iyonke |
| iindleko | Ngexabiso eliphantsi | Ngexabiso eliphantsi | zibiza kakhulu | zibiza kakhulu | Ngexabiso eliphantsi |
| inzuzo | Iindleko eziphantsi kwaye zifanelekile ukugoba okungenakulandelwa kwamacwecwe ahlukeneyo.Indlela yokusetyenziswa ilingana nokufa okusezantsi komatshini wokugoba osemgangathweni. | Iindleko eziphantsi kwaye zifanelekile ukugoba okungenakulandelwa kwamacwecwe ahlukeneyo. | Ubomi obude benkonzo | Isebenza kwiindidi zamacwecwe anesiphumo esihle. | Iindleko eziphantsi kwaye zifanelekile ukugoba okungenakulandelwa kwamacwecwe ahlukeneyo.Indlela yokusetyenziswa ilingana nokufa okusezantsi komatshini wokugoba osemgangathweni. |
| imida | ubomi benkonzo bufutshane kunokufa okusemgangathweni, kwaye ubungakanani becandelo bukhawulelwe ngaphezulu kwe-50mm. | Okwangoku, isebenza kuphela ekugobeni okungabonakaliyo kweemveliso ze-arc ezijikelezayo. | Iindleko ziyabiza kwaye umphumo kwizinto ezithambileyo ezifana ne-aluminiyam kunye nobhedu ayilungile.Ngenxa yokuba ukukhuhlana kwebhola kunye nokuguqulwa kunzima ukulawula, iitrayisi zinokuveliswa kwezinye iipleyiti ezinzima.Kukho izithintelo ezininzi kubude kunye nenotshi. | Iindleko ziyabiza, umda wesicelo uncinci, kwaye ubude kunye nenotshi iyanqanda | Ubomi benkonzo bufutshane kunezinye izikimu, ukutshintshwa rhoqo kuchaphazela ukusebenza kakuhle kwemveliso, kwaye iindleko zinyuka kakhulu xa zisetyenziswe ngobuninzi. |
Uluhlu loku-1 Uthelekiso lweenkqubo zokugoba ezingalandelekiyo
4. I-V-groove ye-die yodwa kwi-sheet metal (le ndlela iyanconywa)
Ezi ndlela zikhankanywe ngasentla kukuqonda ukugoba okungalandelekiyo ngokutshintsha ifa yokugoba.Kubaphathi bamashishini, akucetyiswa ukuba baphuhlise kwaye bathenge iseti yeefa ezintsha ukuqonda ukugoba okungalandelekiyo kwamalungu ngamanye.Ukusuka kwindawo yokujonga ukudibana kwe-friction, ukungqubuzana akukho nto nje ukuba i-die kunye neshiti zihlulwe.
Ngoko ke, kwisiseko sokungatshintshi ukugoba ukugoba, ukugoba okungenamkhondo kunokuqondwa ngokusebenzisa ifilimu ethambileyo ukuze kungabikho uqhagamshelwano phakathi kwe-V-groove ye-die kunye ne-sheet metal.Olu hlobo lwefilimu ethambileyo lukwabizwa ngokuba yifilimu egobayo yokujikela.Izinto eziqhelekileyo ziyi-rubber, i-PVC (i-polyvinyl chloride), i-PE (i-polyethylene), i-PU (i-polyurethane), njl.
Iinzuzo zerabha kunye ne-PVC zixabiso eliphantsi lezinto eziphathekayo, ngelixa izinto ezingalunganga azikho ukunyanzeliswa kwengcinezelo, ukusebenza kakubi kokukhusela kunye nobomi obufutshane benkonzo;I-PE kunye ne-Pu zizinto zobunjineli ezinomsebenzi ogqwesileyo.Ukugoba okungenakulandelwa kunye nokucofa ifilimu eveliswe kunye nabo njengoko isiseko sezinto sinokuchasana nokukrazula okulungileyo, ngoko sinobomi benkonzo ephezulu kunye nokukhusela okulungileyo.
Ifilimu ekhuselayo egobayo idlala indima enkulu phakathi kwendawo yokusebenza kunye negxalaba leefa ukuze kupheliswe uxinzelelo phakathi kwediyizi kunye neshiti lesinyithi, ukuze kuthintelwe ukufakwa kwesixhobo sokusebenza ngexesha lokugoba.Xa usetyenziswa, faka nje ifilimu yokugoba kwi-die, enenzuzo yeendleko eziphantsi kunye nokusetyenziswa okufanelekileyo.
Okwangoku, ubukhulu befilimu yokugoba engaphawuliyo kwimarike ngokuqhelekileyo yi-0.5mm, kwaye ubungakanani bunokwenziwa ngokweemfuno.Ngokubanzi, ifilimu egobileyo egobayo ingakwazi ukufikelela kubomi benkonzo obumalunga nama-200 egoba phantsi kwemeko yokusebenza yoxinzelelo lwe-2T, kwaye ineempawu zokumelana okuqinileyo, ukuxhathisa okuqinileyo, ukugoba okugqwesileyo, amandla aphezulu kunye nobude ngexesha lekhefu, ukuxhathisa. kwi-oyile yokuthambisa kunye ne-aliphatic hydrocarbon solvents.
Isiphelo:
Ukhuphiswano lwemarike yeshishini lokulungisa isinyithi lubukhali kakhulu.Ukuba amashishini afuna ukuthatha indawo kwimarike, kufuneka aphucule rhoqo itekhnoloji yokucubungula.Akufanele siqonde kuphela ukusebenza kwemveliso, kodwa siphinde siqwalasele ukuveliswa kunye nobuhle bemveliso, kodwa siqwalasele uqoqosho lokucubungula.Ngokusebenzisa iteknoloji esebenzayo kunye neyoqoqosho, imveliso kulula ukuyiqhuba, iqoqosho ngakumbi kwaye intle ngakumbi.(ekhethiweyo kwiphepha lesinyithi kunye nokuveliswa, ukukhutshwa kwe-7, i-2018, ngu-Chen Chongnan)
Ixesha lokuposa: Feb-26-2022
