Machining shinda: Zvese zvaunoda kuziva

Yekupedzisira update:09/06 Nguva yekuverenga: 8 mins

Threads ndiwo mameseji anozadza gaka rekukodzera uye kubatana mukuungana kwezvikamu kuti uwedzere kusimba uye kusimba kwekupedzisira kwezvigadzirwa muindasitiri yekugadzira yepasirese, iyo inotsamira zvakanyanya pane chinongedzo uye nekukodzera kwezvikamu kugadzira zvigadzirwa zvekupedzisira.

Ma Threads anoenderera mberi helical edges pane cylindrical uye conical nzvimbo dzinoshandiswa mechanical uye chigadzirwa chikamu coupling.Zvichienderana nekushandiswa, tambo dzinogadzirwa mukati kana kunze.Shinda dzinoumbwa padeko rekunze dzinozivikanwa seshinda dzekunze, nepo shinda dziri mukati dzichinzi shinda dzemukati.Kune machining, pane kunyanya nzira nhatu, Kugaya, shinda kugadzira nemuchina welathe, uye kufa-kucheka,

Mhando dzeshinda

Kune mhando dzakasiyana dzeshinda, dzakadai seshinda dzakaparadzana, shinda dzemuchina, Lag Screws, Self-Tapping Screws, ON fasteners, Thread-Forming Screws, uye Type U Screws.Pakati peaya ON ma fasteners, tambo dzakapatsanurwa uye muchina screw shinda dzinowanzo shandiswa mhando muindasitiri yekugadzira.Zvakare, zvinoenderana neiyo Unified Screw Thread System, NC (yakakora) uye UNF (Yakanaka) shinda ndiwo akajairwa tambo zvikamu.

Pano ngatikurukurei shinda dzemukati nedzekunze muchidimbu.

Internal Threads

Tambo inotenderera mukati mechisungiso, senzungu, inonzi shinda yemukati.Yemukati shinda (Mukadzi) machining inoitwa neimwe chaiyo-lip-lip threading tool.Nekusiyana, dzimwe shinda dzemukati dzinochekwa nechinyakare chinozivikanwa seshinda-tap.Tambo dzemukati dzinogamuchira sikuruu uye kuivhara muworkpiece.

Sarudza chishandiso chine saizi yakakodzera yezita remukati shinda machining uye gadzirisa gomba dhayamita apo iwe unozogadzira tambo pakupera-kushandisa application.

Ndichiri kugadzira shinda idzi neCNC machining, tambo chaidzo dzinofanira kubviswa kubva kuCAD kudhirowa, zvichisiya chete yakakura dhayamita mbiri.Shandisa hukama hwakapihwa kuverenga dhayamita yekutapa;

Diameter yegomba repakati = Tap dhayamita - Thread pitch

Kana kuti, 

Tepi dhayamita = Core gomba dhayamita + Thread pitch.

Tsvaga pakati woboora buri seyakamboverengerwa core-gole dhayamita, wobva wadzvanya kumucheto kwegomba nechokushandisa chepombi uye chamfer ine 90-degree countersink.Zvino tenderera mugomba repakati kuti ugadzire tambo dzinoenderera.

External Threads

Tambo inomonereka nechekunze kweshaft yekusungirira, sebhaudhi.Iyo Lathe inoshanda chaizvo uye yakashandiswa zvakanyanya muchina wekugadzira ekunze shinda pane workpieces.Chero cylindrical tsvimbo inogona kushandurwa mukati inokodzera kugadzira ekunze shinda profiles.Iwe unogona kusarudza chishandiso zvichienderana nekudzika kwepitch inodiwa.

Kuchekwa kweshinda kwekunze kunotanga nedhiri yeshinda (kutenderera-kufa) uye kusungirira kumushini welathe.Mipendero inofanira kutanga kuiswa uye chamfer pa45 degrees.Zvino bata workpiece mupendero nechishandiso chekucheka usati watenderedza iyo yakareba kureba kwayo kugadzira tambo inoenderera.

Zvemukati & Zvekunze shinda

Terminology muThreads machining

Terminology mu thread machining

Root:Shinda mbiri dzinogadzirika dzinoumba nzvimbo yakati sandara kana yakatenderedzwa pasi, kana pasi pemukoto weshinda inozivikanwa semudzi.

Crest:Nzvimbo yekunze yeshinda inoumbwa nemativi maviri eshinda (projected part of the thread)

Flank:Nzvimbo yapamusoro inobatanidza mudzi weshinda necrest yosangana neimwe yayo.

Thread angle:Engle inoumbwa nemativi maviri akatarisana eshinda mbiri muaxial plane inonzi thread angle.

Kudzika kwetsoka:Nzvimbo yeaxial pakati pecrest nemudzi inozivikanwa sekudzika kweshinda.

Pitch:Distance pakati peshinda mbiri dzakafanana

Helix angle:Engle pakati pehelix yeshinda uye mutsara wakajairika kune axis yekutenderera

Kukura kukuru:Diameter yekufungidzira co-axial cylinder inobata nechekunze kweshinda yekunze (kana mudzi kana shinda yemukati)

Diki dhayamita: Diameter yekufungidzira co-axial silinda inobata mudzi weshinda yekunze (kana crest yeshinda yemukati)

Pitch Diameter:avhareji yehukuru uye diki dhayamita

Nzira dzekucheka tambo yekugadzira

Thread cutting inoita kuti zvive nyore kugadzira screwed links pane zvikamu.Kana iwe ukacheka tambo dzemukati, ita shuwa kuti inogona kupinza nekukiya imwe yayo paunenge uchigadzira kubatana.

Kusarudza nzira yakanakisa yekucheka shinda kwakakosha;zvinhu zvakawanda zvinofanirwa kutariswa, senge tekinoroji, hupfumi, mashandisiro enguva, kurongeka, uye kuwanikwa kwemidziyo.

1.          Kugaya

Kugayainogona kushandiswa kucheka shinda pane ese emukati nekunze shinda.Inoshandisa denderedzwa kufamba kwezvishandiso zvekupinza kugadzira shinda mudenderedzwa rimwechete re lateral kufamba.Iyi nzira inoshandiswa pakucheka tambo dzehukuru hwakasiyana, asi inonyanya kukodzera maburi makuru.Shinda dzakagadzirwa nemichina yekugaya dzinogadzira ahigh surface finishuye chaiyo dimensional kuenderana.

Thread Machining nekugaya 

Mukugadzira shinda, kune marudzi maviri ezvishandiso zvinoshanda uye zvakakurumbira: yakasimba carbide uye indexable.Mazino ekucheka maturusi aya anofanana kwete kuseta senge wepombi.Michina yakawanda-yezino yeshinda inocheka shinda kusvika kune yakadzama yakaturikidzana mugomba rimwechete rinotenderedza.Nekuti maturusi ane indexable haawanzo kukodzera maburi ane dhayamita isingasviki 0.625 inches, maturusi ecarbide anonyanya kushandiswa kune madiki-gomba saizi;zvisinei, kurukwa nechishandiso ichi kunoti dhure kana kunyatsojeka kusingade.Chishandiso chine indexable hachidhure nekuti unongoda kutsiva chekucheka mushure mekutenga imwe.

Kune akawanda mabhenefiti ekushandisa thread-milling.Kusiyana nekutapa, iyo inogona kugadzirisa madhayamita akasiyana-siyana nemudziyo mumwe chete, kubata kunongokwanisa kubata dhayamita yakagadzika nechishandiso chimwe chete, uye matepi makuru edhayamita anodhurawo.

2.          Threads Machining neLathe

A Single-point turning tool ine carbide insert inoshandiswa pakucheka uku.Usati waenderera mberi nekucheka, mamwe masvomhu anodiwa kucheka shinda nemuchina welathe, senge pitch, lead, kudzika, uye hombe & diki dhayamita.

Mubato wepombi ndiyo inonyanya kushanda nzira yekubaya nemuchina welathe.Nekudaro, iyo workpiece inofanira kutanga yakasungirirwa muchuck.

Thread Machining neLathe

·     Gadzirisa shinda-bit uye kureba kusvika pakati penzvimbo yeLathe.Iyo bhiti yekushandisa inofanira kunge iri pakona chaiyo yeworkpiece.

·     Hunza chidimbu cheturusi padhuze kune workpiece.

·   Zvino, fambisa mubato.Semuyenzaniso, kana iwe uchida kugadzira shinda ine pitch ye1 mm, chishandiso chekuruka chinofanira kufamba chinhambwe che 1 mm sezvo workpiece inopedza revolution imwe.Saka, pfuurira saizvozvo.

3.          Kufa-kucheka

Kufa-kucheka kweshinda 

Iyo inzira yakatwasuka uye isingadhuri yekucheka shinda inogona kushandiswa kugadzirwa kwemazhinji iyo isingade yakakwira dhigirii yekururama uye mhando.Threading inofa inogadzira shinda yekunze inoenderana neyayo yemukati shinda.

Usati waenderera mberi neshinda yekucheka nekufa, rutivi rwekutanga rwekupedzisira rwebasa rekushanda rinofanira kuchinjwa pa 45 degrees, iyo inogona kuitwa nemuchina kana ruoko.Zvadaro, ndapota sarudza dhayamita yakakodzera kufa uye uisimbise mufa-stock mushure mekuisa inofa pamagumo-padivi, iyo inogona kutenderedzwa nyore nyore nekureba kugadzira tambo.

Mathreading dies anoshandiswawo zvakanyanya mumaindasitiri esimbi nekugadzira kugadzira tambo mumakomba akachekwa kana mabhaudhi.Mashinda anogadzirwa neafa anowedzera simba uye kusimba uku achidzikisa mitengo yezvinhu nekuti mashoma simbi anosara anoraswa panguva yekuita.

Mazano makuru ekugadzira

·        Iva nechokwadi chokuti nzvimbo ye workpiece inofanana nehurefu hwayo yose isati yaenderera mberi nekucheka.

·     Kugadzira shinda dzekunze, chamfer iyo yekupedzisira-divi pa45-degree angle usati wacheka.Chigadziro chinodiwa panoperera shinda yemukati.

·        Kana pasina chakanangana nezvinodiwa zvezvishandiso zvenguva yemberi, zviri nani kugadzira tambo dzine hurefu hwakaderera uye saizi yakajairwa.

·        Thread ukobvu kunofanirwa kusarudzwa kuitira kuti ikwanise kumira kumanikidza paunenge uchibatanidza.

Surface-kupedzisa kune shinda

Shinda dzine kupedzwa kwepamusoro

Mushure mekuita nekugadzira, kupedzwa kwepamusoro kweshinda kwakakosha nekuda kwezvikonzero zvekunaka, kunovandudza kushanda kwechigadzirwa, uye kuwedzera hupenyu hwacho.Mukuwedzera, ndiyo nzira yakanakisisa yekudzivirira kuparara uye kuparara kwepamusoro uye nokudaro kudzivisa kukanganisa kwe mechanical coupling.

Painting uyeblack-oxidekupedzisa ndiyo nzira mbiri dzinoshanda dzepamusoro pekupedzisira kweshinda.Nekudaro, iyo pendi haizogara kwenguva yakareba kana ichienzaniswa neakasviba oxide kupera.

Black-oxide inopera

Inonyanya kuve microscopic layer yemagnetite (Fe3O4) inovhara pamusoro peshinda.Nekuda kwekukora kweblack-oxide coating haina kukosha, haikanganisi kugadzikana kwedimensional, dhizaini paramita, kana zvivakwa.Kuti iyo dema oxide ipere, batch yeshinda dzakagadzirwa inonyudzwa mune alkaline munyu mhinduro patembiricha yakakodzera (130 kusvika 150 0C).

Anotevera ndiwo matanho ekutevera ekupedzisa dema-oxide yeshinda.

• 1.     Uchishandisa alkaline aqueous solution, chenesa tambo (mumabhechi).
• 2.     Chenesa nekukasira nemvura yakadirwa nekuti alkaline mhinduro dzinogona kuita neshinda pamusoro uye kudzikisira iyo yekutanga pamusoro pekupedzisira.
• 3.     Chenesa nemvura zvakare kuderedza kucheneswa kweasidhi.
• 4.     Nyura shinda mumvura inopisa yealkaline kwemaminitsi mashanu kusvika ku45.
• 5.     Uchishandisa jeti remvura, chenesa nemvura yakamanikidzwa uye uise parutivi kuti uome.
• 6.     Kuti uvandudze tambo 'corrosion resistance uye aesthetic kukwezva, isa wakisi, oiri, lacquer, kana zvimwe zvechipiri zvekupfakira zvinhu.
• 7.     Ikozvino batch yeshinda yakagadzirira kune yakanangwa application.

Mhedziso

Threads machining inzira yakakosha mukugadzira.Nokudaro, kusarudzwa kwemaitiro akakodzera emuchina kwakakosha zvikuru.Inofanira kunge inoenderana nekuguma-kushandiswa kwekushandisa, kuwanikwa kwehunyanzvi, uye kugona kwehupfumi.Zvinogona kunge zvakaoma, asi hazvigone kuregeredzwa.

Iwe unogona kubvunzana nenyanzvi mukugadzira tambo kubva pakugadzira kusvika kumusoro kupedzisa.Tine timu ine ruzivo rwemainjiniya anozokubatsira mukugadzira tambo.Isu tinopa tambo machining masevhisi kubva kune ese matekiniki, Kugaya, shinda machining nemuchina welathe, uye kufa-kucheka, zvinenge zvese zvaunoda nezve shinda.Saka, kana iwe uchida chero basa rakabatana, ndapota usazeza taura nesu.

FAQ's

Sei kugadzira shinda kwakakosha mukugadzira?

Thread machining ndeimwe yeanonyanya kushanda-chimedu kugadzira nzira.Mathreads anodiwa kubatanidza maitiro akasiyana uye zvikamu zvechigadzirwa.Inosimbisa majoini uye kubatanidzwa kwezvikamu zvakawanda zvine zvimiro zvakananga.

Ndedzipi nzira dzakakurumbira dzekugadzira shinda?

Kugaya, Lathe muchina, uye kufa ndiwo anonyanya kufarirwa uye anoshanda matekiniki ekugadzira shinda muindasitiri yekugadzira.

Ndeipi nzira yakanakisa yekugadzira shinda?

Zvinoenderana nezvakasiyana siyana senge saizi yeshinda, rudzi rwemashandisirwo, kuwanikwa kwehunyanzvi, kugona kwehupfumi, uye kudiwa kwechokwadi.

Kupedzisa kwepamusoro kwakakosha here kune shinda?

Ehe, Izvo zvakakosha kudzivirira kuumbwa kwengura uye kuwedzera kusimba kwekubatanidza pamwe nekunaka kukwezva.