iindaba

Yintoni inkqubo yokugqithwa okuphezulu?

Inkqubo yokugqiba ayisetyenziswanga kuphela kwishishini lokuthwala, kodwa nakwiinjini, kunye nabanye oomatshini abachanekileyo kunye nezixhobo nazo ziqalisile ukusebenzisa le nkqubo.

Yintoni ukuchaneka okuphezulu?

Ukuthwala i-superfinishing yindlela yokugudisa eyintshukumo yokutya ukufezekisa ukugaya nge-micro.

Umphezulu phambi kokugqiba ngokugqibeleleyo ujikajika ngokuthe ngqo kwaye uphantsi. Ngokukodwa, ibhekisa kwindlela yokulungisa egudileyo eyenza uxinzelelo oluncinci kwisiqwenga sokusebenza ngesixhobo sokurhabula esicociweyo (ilitye le-oyile) phantsi kokuthambisa okulungileyo kunye neemeko zokupholisa, kwaye yenza intshukumo ekhawulezayo nemfutshane ebuyisela i-oscillation kwisixhobo sokusebenza esijikeleza kwindawo ethile. isantya kwicala elithe nkqo elomileyo lokujikeleza.

Yintoni indima yokuthwala i-superfinishing?

Kwinkqubo yokuvelisa iibheringi eziqengqelekayo, ukugqityezelwa yinkqubo yokugqibela yokuqukumbela umsesane, edlala indima ebalulekileyo ekunciphiseni okanye ekupheliseni ukutenxa kwisetyhula eshiywe ngokusila ukusetyenzwa, ukulungisa impazamo yokumila komsele, ukulungisa uburhabaxa bomphezulu wayo, ukuphucula uburhabaxa. iimpawu zomzimba kunye noomatshini bomphezulu, ukunciphisa ukungcangcazela kunye nengxolo yokuthwala, kunye nokuphucula umsebenzi wokuthwala.

Inokubonakaliswa kule miba mithathu ilandelayo

1. Inokunciphisa ngempumelelo i-waviness. Kwinkqubo yokugqiba ngokugqithiseleyo, ukuze kuqinisekiswe ukuba ilitye leoli lihlala lisebenza kwi-crest ye-wave kwaye lingadibanisi nomkhombe, i-arc yelitye yeoli idibene ne-workpiece ≥ ubude be-waviness umphezulu we-workpiece, ukwenzela ukuba uxinzelelo loqhagamshelwano lwe-crest lube lukhulu, kwaye i-convex peak isusiwe, ngaloo ndlela inciphisa u-waviness.

2. Phucula impazamo yegroove yogqatso lwebhola. Ukugqitywa okuphezulu kunokuphucula ngokufanelekileyo impazamo yegroove malunga ne-30% yeendlela zomdyarho.

3. Inokuvelisa uxinzelelo oluxinzelelekileyo kumphezulu we-super-fine grinding. Kwinkqubo yokugqiba, i-deformation yeplastiki ebandayo yenziwa ikakhulu, ukuze emva kokugqiba, uxinzelelo olushiyekileyo lwenziwa kumphezulu womsebenzi.

4. Inokunyusa indawo yoqhagamshelwano yendawo yokusebenza ye-ferrule. Emva kokugqiba ngokugqithiseleyo, indawo yokudibanisa yoqhagamshelwano yendawo yokusebenza ye-ferrule inokunyuswa ukusuka kwi-15% ~ 40% emva kokugaya ukuya kwi-80% ~ 95%.

Ukuthwala inkqubo yokugqiba:

1. Ukusika iibheringi

Xa umphezulu welitye lokusila udibana nencopho ye-convex ye-raceway surface, ngenxa yendawo encinci yokudibanisa kunye namandla amakhulu kwindawo yeyunithi, phantsi kwesenzo soxinzelelo oluthile, ilitye lokusila liqala phantsi. "isenzo sokusila umva" sesixhobo sokusebenza esithweleyo, ukuze inxalenye yamasuntswana abrasive kumphezulu welitye lokusila iwe kwaye iqhekeze, iveza iinkozo ezintsha ezibukhali kunye nokusikwa. imiphetho. Ngelo xesha, i-surface bump ye-bearing workpiece inqunyulwa ngokukhawuleza, kwaye i-crest kunye ne-grinding deterioration layer on the surface of the bearing workpiece isuswa ngokusika kunye nokuhlanjululwa kwe-reverse cut. Eli nqanaba libizwa ngokuba yisigaba sokusika, kwaye kule nqanaba apho uninzi lwesibonelelo sesinyithi sisuswa.

2. Ukusika isiqingatha seebheringi

Njengoko i-machining iqhubeka, umphezulu womsebenzi wokuthwala uhamba ngokuthe ngcembe. Ngeli xesha, indawo yokudibanisa phakathi kwelitye lokugaya kunye nomphezulu we-workpiece yanda, uxinzelelo kwindawo yeyunithi iyancipha, ubunzulu bokusika buyancipha, kwaye amandla okusika ayancipha. Ngelo xesha, ii-pores eziphezu kwelitye lokugaya zivaliwe, kwaye ilitye lokugaya likwimeko ye-semi-cutting. Eli nqanaba liyaziwa ngokuba yi-half-cut-cut stage of bearing finishing, apho amanqaku okusika ebusweni bomsebenzi othwalayo abe lula kwaye abe ne-gloss emnyama.

3. Inqanaba lokugqiba

Eli nqanaba linokohlulwa libe ngamanyathelo amabini: elinye linqanaba lenguquko yokusila; Okwesibini yinqanaba lokugaya emva kokuyeka ukusika

Isigaba senguqu yokusila:

Ingqolowa ye-abrasive i-self-shared, i-edge of abrasive grain is smoothed, i-chip oxide iqala ukufakwa kwi-void yelitye yeoli, i-powder abrasive blocks i-pores yamatye yeoli, ukwenzela ukuba i-grasive abrasive inganqunyulwa kuphela. ngobuthathaka, ehamba kunye ne-extrusion kunye nokugaya, ngoko uburhabaxa bomphezulu be-workpiece buyancipha ngokukhawuleza, kwaye umphezulu welitye leoli unamathele nge-chip oxide emnyama.

Misa inqanaba lokusila:

Ilitye le-oyile kunye ne-workpiece friction kunye nomnye kuye kwaba lula kakhulu, indawo yoqhagamshelwano yanda kakhulu, i-pressure drops, i-grasive abrasive uye yakwazi ukungena kwifilimu yeoli kunye noqhagamshelwano kunye ne-workpiece, xa ifilimu ye-oyile ixinzezeleka kwindawo yokuthwala. ulungelelaniswa noxinzelelo lwamatye oyile, ilitye leoli lidada. Ngethuba lokuqulunqwa kwefilimu yeoli, akukho siphumo sokusika. Eli nqanaba likhethekile kukugqiba.