izindaba

Iyini inqubo yokuqeda amabhere?

Inqubo yokuqeda i-superfinishing ayisetshenziswa kuphela embonini yama-bearing, kodwa nasezinjinini, kanti eminye imishini yokunemba kanye nezinsimbi nazo seziqalile ukusebenzisa le nqubo.

Kuyini ukuchaneka okukhulu kwamabhere?

Ukugcwalisa i-bearing superfinishing kuyindlela yokwenza kube bushelelezi eyindlela yokuhambisa ukudla ukuze kufezwe ukugaya okuncane.

Ubuso ngaphambi kokuqeda i-superfinishing ngokuvamile buguqulwa futhi bugaywe ngokunemba. Ngokuqondile, kubhekisela endleleni yokucubungula okubushelelezi efaka ingcindezi encane ku-workpiece ngethuluzi lokuhlikihla elinohlamvu oluhle (itshe likawoyela) ngaphansi kwezimo ezinhle zokuthambisa nokupholisa, futhi yenza ukunyakaza okusheshayo nokufushane okuphindaphindayo ku-workpiece ejikelezayo ngesivinini esithile ohlangothini lokujikeleza kwe-workpiece eyomile oluqondile.

Iyini indima yokugcwalisa i-bearing superfinishing?

Enqubweni yokukhiqiza ama-rolling bearings, i-superfinishing inqubo yokugcina yokucubungula indandatho yokuthwala, edlala indima ebalulekile ekunciphiseni noma ekuqedeni ukuphambuka okujikelezayo okushiywe ukucubungula, ukulungisa iphutha lokuma komsele, ukulungisa ubulukhuni bomphezulu wawo, ukuthuthukisa izakhiwo zomzimba nezemishini zomphezulu, ukunciphisa ukudlidliza nomsindo we-bearings, kanye nokuthuthukisa umsebenzi we-bearings.

Kungafakwa kulezi zici ezintathu ezilandelayo

1. Kunganciphisa ngempumelelo ukugoba. Enkambisweni yokuqedela kakhulu, ukuqinisekisa ukuthi itshe likawoyela lihlala lisebenza esiqongweni segagasi futhi alithinti umgodi, i-arc yetshe likawoyela ethintana nengxenye yokusebenza ≥ ubude be-waveness ebusweni bengxenye yokusebenza, ukuze ingcindezi yokuxhumana yengxenye enkulu ibe nkulu, futhi isiqongo esiqondile sisuswe, ngaleyo ndlela kuncishiswe ukugoba.

2. Thuthukisa iphutha lomsele womjaho we-ball bearing. Ukuqeda kahle kungathuthukisa ngempumelelo iphutha lomsele elingaba ngu-30% wemigwaqo yomjaho.

3. Kungadala ukucindezeleka kokucindezela ebusweni bokugaya okuhle kakhulu. Enkambisweni yokuqeda okuphezulu, ukuguquguquka kwepulasitiki ebandayo kukhiqizwa kakhulu, ukuze ngemva kokuqeda okuphezulu, kwakheka ukucindezeleka kokucindezela okusele ebusweni bento yokusebenza.

4. Kungandisa indawo yokuxhumana yendawo yokusebenza ye-ferrule. Ngemva kokuqeda kahle, indawo yokuxhumana yendawo yokusebenza ye-ferrule ingandiswa kusuka ku-15% ~ 40% ngemva kokugaya iye ku-80% ~ 95%.

Inqubo yokugcwalisa i-superfinishing:

1. Ukusikwa kwama-bearings

Uma ubuso betshe lokugaya buthintana nesihloko esiqondile sobuso bomgwaqo onzima, ngenxa yendawo encane yokuxhumana kanye namandla amakhulu endaweni yeyunithi, ngaphansi kwesenzo sokucindezela okuthile, itshe lokugaya liqala libhekane nesenzo "sokusika emuva" se-bearing workpiece, ukuze ingxenye yezinhlayiya ezihlaselayo ebusweni betshe lokugaya iwe futhi iqhekeke, kwembulwe izinhlamvu ezintsha ezibukhali ezihlaselayo kanye nemiphetho yokusika. Ngesikhathi esifanayo, i-surface bump ye-bearing workpiece inqunywa ngokushesha, futhi i-crest kanye ne-grinding degeneration layer ebusweni be-bearing workpiece isuswa ngokusika nangokusika emuva. Lesi sigaba sibizwa ngokuthi isigaba sokusika, futhi sikulesi sigaba lapho iningi le-metal allowance lisuswa khona.

2. Ukunqunywa kwesigamu kwama-bearings

Njengoba ukucutshungulwa kuqhubeka, ubuso bomshini wokugaya buhamba kancane kancane. Ngalesi sikhathi, indawo yokuxhumana phakathi kwetshe lokugaya kanye nobuso bomshini wokugaya iyanda, ingcindezi ngeyunithi ngayinye iyancipha, ukujula kokusika kuyancipha, kanye nomthamo wokusika uyancipha. Ngesikhathi esifanayo, ama-pores ebusweni betshe lokugaya ayavinjelwa, kanti itshe lokugaya lisesimweni sokusika kancane. Lesi sigaba saziwa ngokuthi isigaba sokusika okuyingxenye sokuqeda ukugaya, lapho izimpawu zokusika ebusweni bomshini wokugaya ziba lula futhi zibe nokukhanya okumnyama.

3. Isigaba sokuqeda

Lesi sigaba singahlukaniswa ngezinyathelo ezimbili: esinye isigaba sokuguquka kokugaya; esesibili isigaba sokugaya ngemva kokuyeka ukusika

Isigaba sokuguquka kokugaya:

Uhlamvu oluhlabayo luzilola ngokwalo, unqenqema lwenhlamvu oluhlabayo luyashelela, i-chip oxide iqala ukufakwa endaweni engenalutho lwetshe lamafutha, i-abrasive powder ivimba izikhala zamatshe kawoyela, ukuze uhlamvu oluhlabayo lunganqunywa kancane, luhambisane nokukhipha kanye nokugaya, bese ubulukhuni bomphezulu wento yokusebenza buncishiswa ngokushesha, futhi ubuso betshe lamafutha bunamatheliswe nge-black chip oxide.

Misa isigaba sokugaya sokusika:

Ukungqubuzana kwetshe likawoyela kanye nezingxenye zokusebenza kube bushelelezi kakhulu, indawo yokuxhumana iyanda kakhulu, ingcindezi iyehla, uhlamvu oluhlabayo lukwazile ukungena efilimini kawoyela futhi luthintane nengxenye yokusebenza, lapho ingcindezi yefilimu kawoyela ebusweni bokuthwala ilinganiswa nengcindezi yetshe likawoyela, itshe likawoyela liyantanta. Ngesikhathi sokwakheka kwefilimu kawoyela, akukho mphumela wokusika. Lesi sigaba siyingqayizivele ekuqedeni okuphezulu.