Waa maxay xaqiiqada dhabta ah?

Bearing superfinishing waa hab simay oo ah dhaqdhaqaaq quudin si loo gaaro wax-shiid-yar.

Dusha sare ka hor inta aan la dhammayn ayaa guud ahaan si sax ah loo leexiyay oo dhulka. Gaar ahaan, waxa ay tilmaamaysaa habka habaynta silcin in cadaadis yar saaraya workpiece leh qalab abrasive ah ganaax-grained (dhagaxa saliidda) hoostiisa saliidayn wanaagsan iyo xaaladaha qaboojinta, oo ka dhigaysa dhaqdhaqaaq degdeg ah oo gaaban receprocating oscillation on workpiece wareegeysa at gaar ah. xawaaraha ee jihada wareeg ee workpiece qalalan toosan.

Waa maxay doorka dhalista dhamaystirka sare?

In habka wax soo saarka ee biraha duuban, superfinishing waa habka ugu dambeeya ee sidda processing giraanta, kaas oo door muhiim ah ka ciyaara yaraynta ama baabi'inta weecasho wareeg ah by shiidi processing, hagaajinta qalad qaab ee godka, sifeeyo ay qallafsanaan ay dusha, hagaajinta sifooyinka jirka iyo farsamada ee dusha sare, yaraynta gariirka iyo qaylada xajinta, iyo hagaajinta himilada xajinta.

Waxay ka koobnaan kartaa saddexda dhinac ee soo socda

1. Waxay si wax ku ool ah u yareeyn kartaa caajisnimada. In geeddi-socodka ee super-finishing, si loo hubiyo in dhagaxa saliidda had iyo jeer u dhaqmo on crest of mawjada iyo ma xiriir la saxaarad, qaansada dhagaxa saliidda xiriir la workpiece ah.≥dhererka mawjadda waviness ee dusha sare ee workpiece, si cadaadiska xiriirka ee crest waa weyn, iyo convex ugu sarreysa waa la saaraa, taas oo yaraynaysaa waviness.

2. Hagaaji khaladka jeexdin ee jidka orodka ee kubbadda. Dhammaystirka sare wuxuu si wax ku ool ah u wanaajin karaa qaladka jeexdin ee ku saabsan 30% ee jidadka orodka.

3. Waxay soo saari kartaa cadaadis cadaadis saaraya oogada sare ee shiididda aad u fiican. Inta lagu jiro nidaamka superfinishing, qallafsanaanta balaastiigga qabow ayaa inta badan soo baxda, si markaa superfinishing ka dib, cadaadiska haraaga ah ayaa ka abuurma dusha sare ee shaqada.

4. Waxay kordhin kartaa aagga xiriirka ee dusha sare ee shaqada ee ferule. Dhammaadka sare ka dib, aagga xidhiidhka ee dusha shaqada ee ferrule waxaa laga kordhin karaa 15% ~ 40% ka dib marka la shiido ilaa 80% ~ 95%.  

Habka dhamaystirka sareynta:

1. Goynta biraha

 

Marka dusha sare ee dhagaxa wax lagu shiidaa ay la xiriirto cirifka ugu sarreeya ee dusha sare ee qoob-ka-cayaarka, sababtoo ah aagga xiriirka yar iyo xoogga weyn ee aagga cutubka, iyada oo la raacayo ficil cadaadis gaar ah, dhagaxa wax lagu shiido ayaa marka hore la hoos geeyaa. fal "goynta gadaal" ee workpiece dhalista, si qayb ka mid ah qayb ka abrasive on dusha dhagaxa shiidi dhici off iyo jajab, daaha qaar ka mid ah hadhuudh abrasive cusub fiiqan iyo gooyn geesaha. Isla mar ahaantaana, garaaca dusha sare ee shaqada xajinta si degdeg ah ayaa loo gooyaa, iyo lakabka sii xumaanaya ee lakabka iyo xoqidda dusha sare ee shaqada xajinta ayaa laga saaraa iyadoo la jarayo oo dib loo jarayo. Marxaladaan waxaa loo yaqaan wejiga goynta, waana marxaladan halka inta badan gunnada birta laga saaro.

2. Kala-goynta biraha

Sida mishiinku sii socdo, dusha sare ee shaqada xajinta ayaa si tartiib tartiib ah loo siman yahay. Waqtigan xaadirka ah, aagga xidhiidhka u dhexeeya dhagaxa wax lagu shiido iyo dusha sare ee workpiece ayaa kor u kaca, cadaadiska halkii unug ayaa hoos u dhacaya, qoto-dheeraanta goynta ayaa hoos u dhacda, awoodda goynta ayaa hoos u dhacda. Isla mar ahaantaana, daloolada ku yaal dusha sare ee dhagaxa wax lagu shiidi karo waa la xirayaa, dhagaxa wax lagu shiidana waa mid goyn ah. Marxaladdan waxaa loo yaqaannaa marxaladda nus-goynta ee dhammaystirka dhalmada, taas oo calaamadaha jarista ee dusha sare ee shaqada xajinta ay noqdaan kuwo fudud oo leh dhalaal madow.

3. Marxaladda dhamaystirka

Marxaladdan waxa loo qaybin karaa laba tillaabo: Midi waa marxaladda kala-guurka ee shiidada, midda kalena waa marxaladda shiididda ka dib marka goynta la joojiyo.

Marxaladda kala guurka shiidida:

Hadhuudhka xoqan waa is-afeeyey, cidhifka hadhuudhku waa la siman yahay, oxide chip oxide wuxuu bilaabaa in lagu dhejiyo bannaanka dhagaxa saliidda, budada abrasive waxay xannibaysaa daloolada dhagaxa saliidda, sidaa darteed hadhuudhka xoqan waa la gooyn karaa oo keliya si daciif ah, oo ay weheliyaan extrusion iyo shiidi, ka dibna dusha sare ee workpiece ayaa si deg deg ah loo dhimay, iyo dusha dhagaxa saliidda waxaa lagu dhejiyaa oxide chip madow.

Jooji wejiga shiididda:

Dhagaxa saliidda iyo is-jiidhka shaqada ee midba midka kale wuxuu ahaa mid aad u siman, meesha xiriirka ayaa si weyn u kordhay, cadaadiska ayaa hoos u dhacaya, hadhuudhka jilicsan ayaa awooday inuu dhex galo filimka saliidda iyo xiriir la leh workpiece, marka cadaadiska filimka saliidda ee dusha sare waxaa lagu dheellitiran yahay cadaadiska dhagaxa saliidda, dhagaxa saliidda ayaa sabeynaya. Inta lagu jiro sameynta filimka saliidda, ma jirto wax saameyn ah oo goyn ah. Marxaladani waxay gaar u tahay dhamaystirka.