Iyo mandrel bending operation inotanga kutenderera kwayo.Mandrel inopinzwa mudhayamita yemukati yechubhu.Kubhenda kufa (kuruboshwe) kunotema radius.Kurovera kufa (kurudyi) kunotungamira chubhu kutenderedza kufa kuti uone kona.
Mumaindasitiri ese, kudiwa kwekukombama kwechubhu kwakaoma kunoenderera mberi. Zvingave zvikamu zvechimiro, nharembozha yekurapa, mafuremu eATVs kana mota dzekushandisa, kana kunyange masimbi ekuchengetedza simbi mudzimba dzekugezera, chirongwa chega chega chakasiyana.
Kuwana mibairo inodiwa kunoda midziyo yakanaka uye kunyanya hunyanzvi hwakakodzera.Kufanana nechero imwe chirango chekugadzira, kubhenda kwechubhu inoshanda kunotanga neiyo core vitality, pfungwa dzakakosha dzinotungamira chero chirongwa.
Humwe husimba hwepakati hunobatsira kuona huwandu hwepombi kana pombi yekubhenda chirongwa.Zvinhu zvakaita serudzi rwezvinhu, kushandiswa kwekupedzisira, uye kufungidzirwa kushandiswa kwegore kunobata zvakananga maitiro ekugadzira, mutengo unobatanidzwa, uye nguva yekutumira.
Yekutanga yakakosha musimboti ndeye dhigirii re curvature (DOB), kana kona inoumbwa nekubhenda.Inotevera ndiyo Centerline Radius (CLR), iyo inomhanya ichitevedza pakati pepombi kana chubhu kuti igonyere.Kazhinji, iyo yakaomesesa inogoneka CLR yakapetwa kaviri dhayamita yepombi kana chubhu.Kaviri iyo CLR kuverenga iyo centerline Radius (CLR), iyo inomhanya ichitevedza pakati pepombi kana chubhu kuti ive yakakombama. ye 180-degree kudzoka bend.
Iyo yemukati dhayamita (ID) inopimwa panzvimbo yakapamhama yepakazaruka mukati mepombi kana chubhu. Iyo dhayamita yekunze (OD) inopimwa pamusoro penzvimbo yakapamhama yepombi kana chubhu, kusanganisira madziro. Pakupedzisira, ukobvu hwezita hunoyerwa pakati pekunze nemukati mepombi kana chubhu.
Iyo indasitiri yekushivirira kwebend angle ndeye ± 1 degree. Kambani imwe neimwe ine chiyero chemukati chinogona kunge chakavakirwa pamichina inoshandiswa uye ruzivo uye ruzivo rwemushandisi wemashini.
Machubhu anoyerwa uye anotorwa maererano nedhayamita yekunze negeji (kureva ukobvu hwemadziro).Mageji akajairwa anosanganisira 10, 11, 12, 13, 14, 16, 18, uye 20. Iyo yakaderera geji, iyo yakakura madziro: 10-ga.Chubhu ine 0.134 inch.30 a 20-0 0, uye chubhu 30-0. inch.wall.1½” uye 0.035″ OD tubing.Mudhuri unonzi “1½-in” pachikamu print.20-ga.tube.
Pipe inotsanangurwa nekukura kwepombi yezita (NPS), nhamba isina dimensionless inotsanangura dhayamita (mumasendimita), uye tafura yemadziro ekukora (kana Sch.).Mapombi anouya mumhando dzakasiyana-siyana dzemadziro, zvichienderana nekushandiswa kwawo.Mapurogiramu akakurumbira anosanganisira Sch.5, 10, 40 uye 80.
A 1.66″ pipe.OD uye 0.140 inches.NPS yakamaka kumadziro pachikamu chekudhirowa, ichiteverwa nehurongwa - apa, "1¼".Shi.40 machubhu."Chati yeurongwa hwepombi inotsanangura dhayamita rekunze uye ukobvu hwemadziro eNPS yakabatana uye chirongwa.
The wall factor, inova reshiyo pakati pekunze dhayamita nehupamhi hwemadziro, chimwe chinhu chakakosha kune elbows.Kushandisa dzakatetepa-madziro zvinhu (yakaenzana kana pazasi 18 ga.) zvingada kuwedzera kutsigirwa pane bend arc kudzivirira wrinkling kana slumping.Panyaya iyi, kubhenda kwemhando kunoda mandrels uye mamwe maturusi.
Chimwe chinhu chakakosha ndeye bend D, iyo dhayamita yechubhu maererano neiyo bend radius, inowanzonzi iyo bend radius kakawanda yakakura kupfuura kukosha kweD.Somuenzaniso, 2D bend radius ndeye 3-in.-OD pombi ndeye 6 inches. Iyo yakakwirira D yebhendi, zviri nyore kubhenda ndiko kuumba.Uye yakaderera iyo madziro emadziro iri nyore pakati peD Bend coefficient, uye D. inobatsira kuona kuti chii chinodiwa kutanga pombi bend chirongwa.
Mufananidzo 1. Kuti uverenge muzana ovality, patsanura musiyano pakati pehukuru uye hushoma hweOD neOD yezita.
Zvimwe zvirongwa zvepurojekiti zvinodaidza tubing yakaonda kana kuti piping kuti igadzirise mari yezvinhu.Zvisinei, masvingo matete angada nguva yakawanda yekugadzira kuchengetedza chimiro uye kuwirirana kwechubhu pamabhende uye kubvisa mukana wekukwinya.Mune dzimwe nguva, izvi zvinowedzera mari yebasa inodarika mari yekuchengetedza zvinhu.
Kana iyo chubhu inokotama, inogona kurasikirwa ne100% yechimiro chayo chakatenderedza pedyo nekutenderedza bend.Kutsauka uku kunonzi ovality uye inotsanangurwa semusiyano pakati pehukuru uye diki zviyero zvekunze kwedhayamita yechubhu.
Semuenzaniso, 2 "OD tube inogona kuenzana kusvika ku1.975" mushure mekukotama.Iyi 0.025 inch musiyano ndiyo ovality factor, iyo inofanira kunge iri mukati mekubvumirwa kunogamuchirwa (ona Mufananidzo 1) .Zvichienderana nekuguma kwekushandiswa kwechikamu, kushivirira kwe ovality kunogona kuva pakati pe1.5% ne8%.
Zvinhu zvikuru zvinokanganisa ovality igokora D uye kukora kwemadziro.Kupeta radii diki mumidziyo yakaonda-yakakomberedzwa kunogona kuve kwakaoma kuchengetedza ovality mukati mekushivirira, asi inogona kuitwa.
Ovality inodzorwa nekuisa mandrel mukati mechubhu kana pombi panguva yekukotama, kana mune imwe chikamu specs, uchishandisa (DOM) tubing yakadhirowewa pane mandrel kubva pakutanga. (DOM tubing ine yakasimba kwazvo ID uye OD tolerances.) Iyo yakaderera iyo ovality kushivirira, iyo yakawanda tooling uye inogona kugadzira nguva inodiwa.
Tube bending Operations inoshandisa hunyanzvi hwekuongorora michina kuona kuti zvikamu zvakaumbwa zvinosangana nezvinodiwa uye kushivirira (ona Mufananidzo 2) .Chero gadziriso inodiwa inogona kuendeswa kumushini weCNC sezvinodiwa.
roll.Ideal yekugadzira radius yakakura bends, roll bending inosanganisira kudyisa pombi kana tubing kuburikidza nematatu matatu mukugadzirisa katatu (ona Mufananidzo 3) .Maviri ekunze ekunze, anowanzogadziriswa, anotsigira pasi pezvinyorwa, nepo mukati mekugadzirisa roller inotsikirira pamusoro pechinhu.
Munzira iyi iri nyore, kupeta kufa kunoramba kwakamira apo counter-die inokotama kana kudzvanya zvinhu zvakatenderedza chigadziriso.Iyi nzira haishandisi mandrel uye inoda machisi chaiwo pakati pekupeta kufa uye kunoda kubhenda radius (ona Mufananidzo 4).
Twist and bend.Imwe yemhando dzakajairika dzechubhu kubhenda ndeyekutenderera kutambanudza kubhenda (inozivikanwawo semandrel bending), iyo inoshandisa kukotama uye kumanikidza kunofa uye mandrels.Mandrels isimbi tsvimbo inoisa kana macores anotsigira pombi kana chubhu kana yakabhenda.Kushandiswa kwemandrel kunodzivirira chubhu kubva pakudonha, kupepeta nekupeta kwechubhu panguva yekukotama, kupepeta uye kukwinya ipapo. Mufananidzo 5).
Ichi chirango chinosanganisira kubhenda kwe-multi-radius yezvikamu zvakaoma zvinoda maviri kana kupfuura centerline radii.Multi-radius bending yakakurawo kune zvikamu zvine guru redhiyo repakati (zvakaoma tooling zvingasava sarudzo) kana zvikamu zvakaoma zvinoda kuumbwa mune imwe yakazara kutenderera.
Mufananidzo 2. Midziyo yakasarudzika inopa chaiyo-nguva diagnostics kubatsira vashandisi kusimbisa chikamu chakatemwa kana kugadzirisa chero kugadziridzwa kunodiwa panguva yekugadzira.
Kuti uite rudzi urwu rwekukotama, rotary draw bender inopiwa maviri kana kupfuura maturusi seti, imwe kune imwe neimwe yaidiwa radius.Custom setups pane mbiri musoro press brake - imwe yekukotama kurudyi uye imwe yekukotama kuruboshwe - inogona kupa zvose zviduku uye zvakakura radii pachikamu chimwe chete.Kushandura pakati pekuruboshwe nekurudyi kwegokora kunogona kudzokororwa kubvumira nguva dzakawanda muhuputi hwehuputi kana kuti kuumbwa kwehuputi hupi hupi hupi hupi hunodiwa. michina (ona Mufananidzo 6).
Kuti utange, nyanzvi inomisa muchina maererano nechubhu geometry yakanyorwa mubend data sheet kana kudhindwa kwekugadzira, kupinda kana kurodha zvigadziriso kubva pakadhindwa pamwe chete nehurefu, kutenderera uye angle data.Inotevera inouya yekukotama simulation kuti ive nechokwadi chekuti chubhu ichakwanisa kujekesa muchina uye maturusi panguva yekukotama kutenderera.Kana simulation ichiratidza kudhumhana kunodiwa kana kupindira kwemuchina.
Nepo nzira iyi inowanzodiwa kune zvikamu zvakagadzirwa nesimbi kana simbi isina tsvina, simbi zhinji dzeindasitiri, ukobvu hwemadziro uye kureba zvinogona kugariswa.
Kubhenda kwakasununguka.Imwe nzira inonakidza, kubhenda kwemahara kunoshandisa dhiya yakafanana nepombi kana chubhu iri kupetwa (ona Mufananidzo 7) .Iyi nzira yakanaka kune angular kana multi-radius mabhendi makuru kupfuura madhigirii 180 ane zvikamu zvishomanana zvakatwasuka pakati pemabhendi ega ega (traditional rotational stretch bends inoda mamwe mapeji akatwasuka kuti chishandiso chibate) .
Tin-walled tubing—inowanzo shandiswa muchikafu nechinwiwa muchina, fenicha, uye mishonga kana mishonga yezvoutano—yakanakira kubhenda mahara. Zvakapesana, zvidimbu zvine madziro akakobvu zvingasave vamiririri vanokwanisa.
Zvishandiso zvinodikanwa pamapurojekiti mazhinji ekupeta pombi.Mukutenderedza kubhenda, zvishandiso zvitatu zvakakosha kupeta zvinofa, kudzvanywa kunofa uye kusungirira kunofa.Zvichienderana nebend radius uye ukobvu hwemadziro, mandrel uye wiper inofa inogonawo kudikanwa kuti iwane mabhendi anogamuchirika.Zvikamu zvine mabhendi akawanda zvinoda collet inobata uye zvinyoro nyoro inovhara sechubhu inovhara, inotenderera kunze kwechubhu inovhara, uye inotenderera kunze kwechubhu. bend.
Mwoyo wekuita urikupeta dhi kuti igadzire nzvimbo yepakati yechikamu. Iyo yekufa's concave channel die inoenderana nekunze kwedhayamita yechubhu uye inobatsira kubata zvinhu sezvainokotama. Panguva imwecheteyo, iyo pressure die inobata uye inodzikamisa chubhu painokuvadzwa ichitenderedza kufa. Iyo clamping die inoshanda pamwe chete neinotsikirira iyo yekumisikidza iyo bending diar seg iyo yakatwasuka chubhu. kupera kwe bend kufa, shandisa chiremba kufa pazvinenge zvakakodzera kutsvedzerera pamusoro pezvinhu, tsigira chubhu madziro, uye kudzivirira kuunyana uye banding.
Mandrels, bronze alloy kana chromed simbi inoisa kutsigira pombi kana machubhu, kudzivirira kudonha kwechubhu kana kink, uye kuderedza ovality. Rudzi runonyanya kuzivikanwa ibhora mandrel. Yakanakira mabhendi e-multi-radius uye maworkpiece ane akajairwa madziro emadziro, bhora mandrel rinoshandiswa tandem pamwe neinopukuta, fixture uye pressure die. pamwe chete vanowedzera kumanikidza kunodiwa kubata, kudzikamisa uye kutsvedzerera kubhenda.Puragi mandrel itsvimbo yakasimba yemagokora mahombe ane madziro epombi dzakakobvu dzisingadi wipers.Kugadzira mandrels matanda akasimba ane akabhenda (kana akaumbwa) anogumira anoshandiswa kutsigira mukati makobvu machubhu kana machubhu akabhenda kune avhareji yeradius. mandrels.
Kubhenda chaiko kunoda midziyo nekugadzirisa.Makambani mazhinji ekubhenda pombi ane maturusi mustock.Kana asiripo, maturusi anofanira kutorwa kuti agone kubhenda radius chaiyo.
Mari yekutanga yekugadzira bend die inogona kusiyanisa zvakanyanya.Iyi yenguva imwe chete yekubhadhara inovhara zvinhu uye nguva yekugadzira inodiwa kugadzira zvishandiso zvinodiwa, izvo zvinowanzo shandiswa kune anotevera mapurojekiti.Kana chikamu chekugadzira chiri kuchinjika maererano nebend radius, vanogadzira zvigadzirwa vanogona kugadzirisa zvirevo zvavo kuti vatore mukana weiyo mupi weiyo iripo yekubhenda tooling (panzvimbo pekubatsira kushandisa mitsva yekutungamira mari.
Mufananidzo 3. Yakanakira kugadzirwa kwema radius mabhendi makuru, roll bending kuti iite chubhu kana chubhu ine matatu rollers mu triangular configuration.
Maburi anotsanangurwa, maburi, kana mamwe maficha ari kana pedyo nekubhenda anowedzera basa rekubatsira, sezvo laser inofanira kuchekwa mushure mekunge chubhu yabhenda.Tolerances inokanganisawo mutengo.Kunyanya kudiwa mabasa kungada mamwe mandrels kana kufa, izvo zvinogona kuwedzera nguva yekuseta.
Pane zvakawanda zvakasiyana-siyana vagadziri vanofanira kufunga nezvazvo pavanenge vachitsvaga magokora etsika kana mabhendi. Zvinhu zvakadai sematurusi, zvinhu, huwandu, uye basa zvose zvinoita basa.
Kunyange zvazvo nzira dzokupeta pombi uye nzira dzakafambira mberi nekufamba kwemakore, pombi dzakawanda dzekubhenda dzinoramba dzakafanana. Kunzwisisa zvakakosha uye kubvunza mutengesi ane ruzivo kuchakubatsira kuwana migumisiro yakanakisisa.
FABRICATOR ndiyo magazini inotungamira kuNorth America yekugadzira simbi nekugadzira. Magazini iyi inopa nhau, zvinyorwa zvehunyanzvi uye nhoroondo dzenyaya dzinogonesa vanogadzira kuita mabasa avo nemazvo.FABRICATOR yanga ichishandira indasitiri kubva 1970.
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