Menene ke ɗauke da ma'auni?

Bearing superfinishing hanya ce mai santsi wanda shine motsin ciyarwa don cimma ƙananan niƙa.

Fuskar gabanin rufewa gabaɗaya daidaici ake juyawa da ƙasa. Musamman, yana nufin hanyar sarrafa smoothing wanda ke haifar da ɗan matsa lamba akan kayan aiki tare da kayan aikin abrasive mai kyau (dutsen mai) a ƙarƙashin kyawawan lubrication da yanayin sanyaya, kuma yana yin saurin jujjuyawar motsin motsi da gajere a kan workpiece yana juyawa a wani takamaiman yanayin. gudun a tsaye bushe workpiece juyawa shugabanci.

Menene aikin ɗaukar superfinishing?

A cikin tsarin kera na'urar birgima, superfinishing shine tsari na ƙarshe na sarrafa zobe, wanda ke taka muhimmiyar rawa wajen ragewa ko kawar da karkacewar da'irar da aka bari ta hanyar niƙa, gyara kuskuren siffa ta mahara, tsaftace tarkace, inganta yanayin yanayin da'irar. Properties na jiki da na injiniya na saman, rage girgizawa da amo na ɗaukar hoto, da kuma inganta aikin ƙaddamarwa.

Yana iya kasancewa cikin waɗannan abubuwa guda uku masu zuwa

1. Yana iya yadda ya kamata rage waviness. A kan aiwatar da super-karewa, don tabbatar da cewa dutse mai ko da yaushe yana aiki a kan ƙwanƙolin raƙuman ruwa kuma baya hulɗa da trough, da baka na dutse mai a lamba tare da workpiece.≥da wavelength na waviness a kan surface na workpiece, sabõda haka, lamba lamba na crest ya fi girma, da kuma convex ganiya an cire, game da shi rage waviness.

2. Inganta kuskuren tsagi na hanyar tseren ƙwallon ƙafa. Super-karewa na iya inganta ingantaccen kuskuren tsagi na kusan 30% na hanyoyin tsere.

3. Yana iya haifar da matsa lamba a kan saman super-lafiya nika. A cikin aiwatar da superfinishing, sanyi nakasar filastik galibi ana haifar da shi, ta yadda bayan superfinishing, saura matsa lamba yana samuwa a saman kayan aikin.

4. Zai iya ƙara yankin lamba na filin aiki na ferrule. Bayan super-gama, ana iya ƙara yanki mai ɗaukar lamba na saman aiki na ferrule daga 15% ~ 40% bayan niƙa zuwa 80% ~ 95%.  

Ƙaddamar da tsarin kammalawa:

1. Yanke bearings

 

Lokacin da saman dutsen niƙa ya kasance tare da madaidaicin kololuwar filin jirgin ƙasa mai ƙaƙƙarfan, saboda ƙaramin yanki da babban ƙarfi akan yankin naúrar, ƙarƙashin aikin wani matsi, dutsen niƙa yana farawa da farko. da "reverse yankan" mataki na hali workpiece, sabõda haka, da cewa wani ɓangare na abrasive barbashi a kan saman da nika dutse fado kashe da gutsutsu, bayyana wasu sabon kaifi abrasive hatsi da yankan gefuna. A daidai wannan lokaci, da surface karo na hali workpiece ne da sauri yanke, da crest da nika deterioration Layer a kan surface na hali workpiece an cire ta hanyar yankan da baya yankan. Wannan mataki shi ake kira yankan lokaci, kuma a wannan mataki ne ake cire mafi yawan alawus din karfe.

2. Rabin yankan bearings

Yayin da mashin ɗin ya ci gaba, ana yin santsi a hankali a hankali saman kayan aikin ɗaukar hoto. A wannan lokacin, yanki na lamba tsakanin dutse mai niƙa da farfajiyar aikin aikin yana ƙaruwa, matsa lamba a kowane yanki na yanki yana raguwa, zurfin yankan yana raguwa, ƙarfin yankewa yana raguwa. A lokaci guda kuma, an toshe ramukan da ke saman dutsen niƙa, kuma dutsen niƙa yana cikin yanayin yankewa. An san wannan matakin a matsayin matakin yanke rabin ƙarewa, wanda a cikinsa alamomin yankan akan saman kayan aikin ɗaukar nauyi sun zama masu haske kuma suna da haske mai duhu.

3. Matakin gamawa

Za a iya raba wannan mataki zuwa matakai biyu: ɗaya shine matakin niƙa, ɗayan kuma shine matakin niƙa bayan an daina yanke.

Lokacin niƙa:

Hatsi mai kaifi yana kaifi da kansa, gefen ƙwayar hatsi yana santsi, guntu oxide ya fara sakawa a cikin ɓarna na dutsen mai, foda mai ƙura yana toshe ramukan dutsen mai, ta yadda za'a iya yanke hatsin da aka lalata kawai. rauni, tare da extrusion da nika, sa'an nan da surface roughness na workpiece da sauri rage, da kuma surface na man dutse an haɗe da baki guntu oxide.

Dakatar da lokacin yankan niƙa:

Oil dutse da workpiece gogayya da juna ya kasance sosai santsi, lamba yankin da aka ƙwarai ƙãra, da matsa lamba saukad, da abrasive hatsi ya iya shiga cikin man fim da lamba tare da workpiece, a lokacin da man fim matsa lamba na hali surface. an daidaita shi da matsi na dutse mai, dutsen mai yana iyo. A lokacin samar da fim din mai, babu wani sakamako mai yankewa. Wannan matakin ya keɓanta da superfinishing.