Ekwenziweni kweimoto cylinder bores, inqubo yokucija ibalulekile ukuze kuzuzwe okudingekayoukunemba, ukuphela kwendawo, futhiukunemba kwejometri. Umshini wokucija udlala indima ebalulekile ekucwengiseni ingaphezulu le-cylinder bore ukuze uhlangabezane nezidingo eziqinile zokusebenza kwenjini, ukusebenza kahle, nokuphila isikhathi eside.
Kungani aUmshini WokucijaIyadingeka:
Ama-cylinder bores ayingxenye ebalulekile enjinini, njengoba ehlala ama-piston futhi kufanele anikeze indawo eqondile, ebushelelezi ukuze amapiston ashelele. Ngesikhathi senqubo yokukhiqiza, ama-cylinder bores avame ukudalwa ngezinqubo ezifanayisicefenomaukubhoboza. Ngenkathi lezi zinqubo zikhiqiza ukwakheka kwesilinda esiyisisekelo, azinikezi indawo yokugcina edingekayo ukuze kuhambe kahle i-piston, ukugcinwa kukawoyela, nokumelana nokugqokwa. Yilapho umshini wokucija ufika khona.
Iumshini wokucijakubalulekile ku-:
Ukuzuza Ukunemba: Ama-cylinder bores kufanele abe nobubanzi obuqondile, ubuyindilinga, kanye nobuqotho, ikakhulukazi-ezinjinini ezisebenza kahle. Imishini ye-Honing inikeza ukulungiswa okuhle okudingekayo ukuze kuqinisekiswe ukuthi i-cylinder bore ihlangabezana nokubekezelelana okuqinile.
Ukudala I-Surface Efanelekile Qeda: Indawo engaphakathi yesilinda kufanele ibe nokuthungwa okuthile okukhuthaza ukuvala okusebenza kahle phakathi kwamasongo e-piston nodonga lwesilinda. Kudingeka futhi ukuvumela ukugcinwa kukawoyela okuphelele ukuze kuncishiswe ukungqubuzana nokuguga.
Ukuthuthukisa Ubuqotho BeJiyomethri: Inqubo yokucija isiza ukuqeda noma yikuphi ukungapheleli{0}okufana-nokuphuma{1}}kokuyindilinga, ukucisha, noma ukuhlanekezela okubangelwa izinqubo zangaphambilini, ukuqinisekisa ukubhoboza kweqiniso, okufanayo.
Imisebenzi yoMshini Wokuhloba:
Surface Finishing: I-Honing isusa inani elincane lezinto kubhore ukuze kuthuthukiswe isiphetho esingaphezulu, ngokuvamile esidinga ukuzuza ubulukhuni obuphezulu ebangeni leI-Ra 0.2 kuya ku-1.0 microns(kuya ngemininingwane yenjini). Ukushelela kuthuthukisa ukusebenza kahle kokuvala amasongo e-piston.
Ukulawula Usayizi Nokubekezela: Umshini we-honing usetshenziselwa ukufeza ububanzi bokugcina, obunembile be-cylinder bore, ukuqinisekisa ukuthi kufanelana ne-piston futhi inikeza ukucindezelwa okufanele.
Ukujikeleza nokuqondile: Inqubo ye-honing iqinisekisa ukuthi i-cylinder bore iyindilinga ye-geometrically futhi iqondile, isusa noma yikuphi ukungahambisani nezinqubo zangaphambilini zomshini.
Iphethini ye-Crosshatch: Ukucija kwakha okuthileiphethini ye-crosshatchphezu kwebhore, okubalulekile ekugcineni uwoyela. Le phethini isiza ekudaleni uphawu olufanele ngamasongo e-piston futhi inciphisa ukuguga kukho kokubili udonga lwesilinda namasongo e-piston.
Ukukhipha imali: Inqubo yokucija isiza ukususa noma yimaphi ama-burrs noma imiphetho ebukhali esele ezinyathelweni zangaphambili zomshini, ukuthuthukisa ikhwalithi iyonke yebhore yesilinda.
Indlela Inqubo Yokuhloba Yenziwa Ngayo:
Ukulungiselela:
I-cylinder bore iqala umshini ibe usayizi onzima kusetshenziswa izinqubo ezifana nokubhora noma ukubhoboza.
I-workpiece (i-cylinder block) ifakwe ngokuphephile emshinini wokucija.
Umshini wokucija unayoamatshe abrasivenomaamabhande abrasiveezikhethwe ngokukhethekile ngokusekelwe ekuqedeni okufunayo kanye nezakhiwo ezibonakalayo ze-cylinder.
Ukusethwa Kwethuluzi Le-Honing:
Amatshe Abrasive: Lamatshe agxunyekweukucija amakhandaezijikeleza ngaphakathi kwebhore yesilinda. Amatshe ngokuvamile enziwei-aluminium oxidenomai-cubic boron nitride (CBN), kuye ngobulukhuni bempahla.
I-Stroke Mechanism: Ithuluzi lokucija linyakaziswa ngokunyakaza okuphindaphindayo ({0}}na{1}}phambili) ngaphakathi kwebhore. Lokhu kunyakaza, kanye nokujikeleza kwamatshe abrasive, kuqinisekisa ukuthi ubuso busebenza ngokulinganayo.
Ukuthambisa: Uketshezi olukhethekile lokusika noma into epholile isetshenziselwa ukugcoba inqubo yokucija, ukunciphisa ukunqwabelana kokushisa nokuvimbela ukuguga. Kuyasiza futhi ukuthwala izinto ezinhle ezikhishwe emgodini.
Honing Process:
Ukunwetshwa kweRadial kwamatshe Abrasive: Njengoba ithuluzi lokucija lihamba, iamatshe abrasivenomaamabhulashi abrasivecindezela uphumele ngaphandle ngokumelene nodonga lwesilinda, ngokuqhubekayo ugaya futhi upholisha indawo ebhorekile. Ukucindezela okwenziwayo ngokuvamile kuphansi ukuze kuqinisekiswe ukukhishwa okuhle ngaphandle kokulimaza indawo engaphezulu.
Amapharamitha Aguquguqukayo: Umsebenzisi ulungisa amapharamitha angukhiye njengeisivinini sokujikeleza, izinga lokushaya, futhiukunwetshwa kobubanzi bamatsheukuze ufinyelele isiphetho esidingekayo, i-geometry, nosayizi.
Iphethini ye-Crosshatch: Ngesikhathi sokucija, ukunyakaza kwamatshe abrasive kanye nokuzungezisa isilinda kudalaiphethini ye-crosshatchebusweni. Le phethini ibalulekile ekuthuthukiseni ukugcinwa kukawoyela kanye nokuqinisekisa ukuvaleka okufanele phakathi kwamasongo e-piston nodonga lwesilinda.
Izilinganiso Zokugcina:
II-cylinder bore diameterkukalwa kuyo yonke inqubo ukuze kuqinisekiswe ukuthi usayizi wokugcina wokubhoboza ufana nemininingwane edingekayo. Iubuyindilingafuthiubuqothoyebore nazo ziqinisekisiwe.
Indawo engaphezulu iyahlolwa, ngokuvamile ngama-surface profilometers, ukuze kuqinisekiswe ukuthi ingena ngaphakathi kwephethini edingekayo yokumahhadla kanye ne-crosshatch.
Ukuqeda:
Lapho isiphetho esifiselekayo sobuso kanye nokubekezelelana kwe-dimensional sekufinyelelwe, inqubo yokucija iyamiswa.
I-cylinder block iyasuswa emshinini wokucisha futhi ihlanzwe ukuze kukhishwe noma iyiphi imfucumfucu kanye nezinsalela zokupholisa.
Isifinyezo seNqubo yokuHlonipha:
Ukushiswa Kwemishini: Ama-cylinder bores aqala ukudalwa ngokubhora noma ukubhoboza.
Setha: I-workpiece ifakwe emshinini we-honing, futhi amatshe abrasive noma amabhulashi amisiwe.
Ukucija: Ithuluzi lihamba ngokukhazimulayo futhi libuyisela ngaphakathi kwebhore, likhipha inani elincane lezinto ukuze lithuthukise ukujikeleza, usayizi, kanye nokuqedwa kwendawo.
Ukudalwa Kwephethini: Iphethini ye-crosshatch yenziwa phezulu, okubalulekile ekugcineni uwoyela kanye nokuvala i-piston-efanele.
Izilinganiso Zokugcina Nokuhlanza: Ibhore likalwa ukuze kuqinisekiswe ukuthi yonke imininingwane iyahlangatshezwa, futhi ingxenye iyahlanzwa ukuze ihlanganiswe futhi.
Kungani Kubalulekile Ukuhlonishwa:
Ukunemba: Inqubo yokucija ifinyelela ukunemba okudingekayo ukuze kulingane okuqinile phakathi kwepiston nebhore yesilinda.
Ikhwalithi Yobuso: Iphethini ebushelelezi, ye-crosshatch ekhiqizwa ngokucija iqinisekisa ukuthi izindandatho zepiston zingavaleka kahle nokuthi udonga lwesilinda lugcotshwe ngendlela efanele.
Ukuqina: I-Honing ithuthukisa ukuqina kwesilinda ngokuthuthukisa isiphetho sayo esingaphezulu nejiyomethri, kunciphisa ukuguga kukho kokubili isilinda namaringi episton ngokuhamba kwesikhathi.
Ukusebenza Okufanelekile Kwenjini: Ukucija ngendlela efanele kuholela ekusebenzeni kahle kwenjini, amandla, nokuncipha kokusetshenziswa kukawoyela, okuqinisekisa ukusebenza{0}}okuhlala isikhathi eside kwenjini.
