Gaskiya Game da Maɗaukakin Saurin Saurin don CNC Spindles

Gaskiya Game da Maɗaukakin Gudu: Amsa Mai Sauri

Maɗaukaki mai sauri ba kawai ɗaukar hoto ba ne tare da babban lambar RPM akan takardar bayanai. A cikin sandar CNC, saurin da za a iya amfani da shi ya dogara da cikakken tsarin ɗaukar hoto: girman ɗauka, kayan juzu'i, ƙirar ciki, kusurwar lamba, riga-kafi, tsari, aji daidaito, hanyar lubrication, daidai, sanyaya, kaya, sarrafa gurɓataccen abu, da halayen zafi.

Wannan shine dalilin da ya sa nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan iri ɗaya na iya samun damar saurin gudu daban-daban, haɓakar zafin jiki, taurin kai, hayaniya, da rayuwar sabis. Shi ne kuma dalilin da ya sa na'urar da ke aiki da kyau a 24,000 RPM a cikin spindle ɗaya bazai dace da gudu ɗaya ba a cikin mafi girma, mafi girma, mai nauyi, daban-daban spindle.

Maɓalli mai ɗaukar nauyi: kimanta manyan igiyoyin igiya masu sauri a matsayin wani ɓangare na tsarin. Matsakaicin RPM shigarwa ɗaya ne kawai. Matsakaicin saurin gudu, riga-kafi, lubrication, kwanciyar hankali na zafi, tauri, ƙarfin kaya, tsari mai ɗaukar nauyi, da ingancin shigarwa suna tantance ko ɗaukar nauyi na iya aiki da dogaro a cikin madaidaicin igiya.

Tambayi Game da Zaɓin Ƙarƙashin Ƙaƙwalwar CNC

Menene Maɗaukakin Sauri?

Ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙirar ƙira waɗanda aka inganta don aiki a cikin maɗaukakin saurin juyawa yayin sarrafa gogayya, samar da zafi, tasirin centrifugal, halayen lubrication, girgizawa, da daidaiton gudu. A cikin inji-kayan aiki da CNC spindle aikace-aikace, mafi na kowa high-gudun mafita sun hada da super-madaidaici angular lamba ball bearings , sau da yawa kawota kamar yadda matches sets tare da preload da aka bayyana.

Dangane da tsarin gine-ginen dunƙule, za a iya haɗa ƙwallo mai tsayin kusurwar kusurwa mai tsayi tare da ɗimbin abin nadi na silindi ko wasu nau'ikan ɗaukar nauyi don samar da ma'aunin da ake buƙata na tallafin radial, goyan bayan axial, taurin kai, ƙarfin faɗaɗa zafi, da sauri.

Me yasa RPM Kadai Shine Ma'aunin Kwatancen Mara Kyau

Ƙunƙarar 20 mm da ke gudana a 30,000 RPM da 80 mm bearing a 30,000 RPM ba sa fuskantar yanayin gudun guda ɗaya. Babban juzu'i yana da mafi girman mirgina-abun gudu da tasirin centrifugal. Don haka, injiniyoyi masu ɗaukar nauyi sukan yi amfani da ma'aunin saurin gudu dangane da saurin juye-juye da ma'anar diamita.

Matsakaicin saurin gudu = n × d _m

inda n = gudun juyawa a cikin r/min

d _m = (d + D) ÷ 2 , inda d yake da diamita na diamita kuma D yana waje diamita a mm.

Ƙimar n × d _m yana da amfani don kwatanta tsananin saurin, amma har yanzu ba iyakacin fasfo/ gazawa ba ne na duniya. Ƙimar da aka halatta ta dogara da jerin ɗawainiya, keji, kayan ƙwallon ball, preload, lubrication, cire zafi, kaya, dacewa, da bayanan ƙirar masana'anta.

Abubuwa 6 waɗanda A Haƙiƙa suke Ƙaddara Ayyukan Haɓakawa Mai Girma

1. Girman Girma da Geometry na ciki

Ƙananan abubuwa masu birgima da ingantattun lissafi na ciki na iya rage ƙarfin centrifugal da gogayya a babban gudu. Koyaya, rage girman ball kuma na iya canza ƙarfin lodi da taurin kai. Zane mai sauri don haka ya haɗa da ciniki tsakanin saurin gudu, tsattsauran ra'ayi, ƙarfin lodi, hawan zafin jiki, da rayuwar sandar da ake buƙata.

2. Anguwar Tuntuɓa

Ƙwallon ƙafa na kusurwa yana watsa kaya tare da kusurwar lamba tsakanin bukukuwa da hanyoyin tsere. Ƙananan kusurwoyin tuntuɓa suna da alaƙa da ƙira mafi girma na igiya, yayin da manyan kusurwoyin tuntuɓar na iya samar da mafi girman ƙarfin axial. Dole ne a zaɓi madaidaicin kusurwa a kusa da kayan yankan sandal, buƙatun ƙunci axial, ƙirar kayan aiki, tsari mai ɗaukar nauyi, da saurin manufa.

Kada ka zaɓi kusurwar lamba daga gudun kawai. Ƙarfafawa tare da kyakkyawan ƙarfin ƙa'idar ƙa'idar na iya zama zaɓi mara kyau idan sandal ɗin yana buƙatar ƙarin ƙarfi ko ƙarfin turawa fiye da yadda tsarin zai iya samarwa.

3. Preloading

Preload yana cire wasan ciki kuma yana iya haɓaka ƙunƙun igiya da daidaiton gudu. Amma ƙarin ɗaukar nauyi ba koyaushe ya fi kyau ba. Matsanancin ɗaukar nauyi yana ƙara nauyin hulɗar ciki, juzu'i, da zafi, wanda zai iya rage saurin isa da rayuwa mai ɗaukar nauyi.

4. Hanyar Lubrication da Yawan man shafawa

Ƙaƙƙarfan igiya masu saurin gudu suna da matuƙar kula da lubrication. Man mai kadan kadan na iya haifar da rashin isassun samar da fim da lalacewa. Maiko da yawa na iya ƙara ɓarna, gogayya, da zafin jiki, musamman lokacin shiga ciki.

5. Gudanar da thermal

Yayin da yawan zafin jiki ya hauhawa, danƙon mai yana faɗuwa kuma yana faɗaɗa zoben ɗaukar hoto, shaft, gidaje, da abubuwan ɗorewa. Waɗannan canje-canjen na iya canza preload na aiki da sharewa mai gudana. Ƙunƙarar sandar da ke tsaye lokacin sanyi na iya zama daban bayan dogon zagayowar sauri.

Zane mai inganci don haka yana la'akari da ɗaukar samar da zafi tare da sanyaya gidaje, haɓakar shaft, zafin motsa jiki, da'ira mai sanyaya ko sanyaya ruwa, zafin mai, da hanyoyin dumama.

6. Daidaitaccen Ajin, Daidai, Shigarwa, da Tsafta

Ƙaƙƙarfan ƙaƙƙarfan ƙarfi na iya amfani da azuzuwan haƙuri kamar ISO P4, P2, ko takamaiman makin ƙira. Waɗannan azuzuwan suna da mahimmanci, amma ba sa ba da garantin ƙarshen igiyar ruwa da kansu. Geometry na shaft, geometry na gidaje, murabba'in kafada, dacewa, ƙarfin matsawa, daidaita-daidaitacce, tsaftar taro, da yanayin mai riƙe kayan aiki duk suna rinjayar sakamakon da aka haɗa.

A babban gudun, ƙananan kurakuran haɗuwa da gurɓatawa na iya zama manyan tushen zafi, girgiza, da lalacewa da wuri.

Hybrid Ceramic vs Karfe Bearings for High-Speed ​​Spindles

Haɗaɗɗen yumbura na yau da kullun suna amfani da siliki nitride (Si ₃N ₄) abubuwan mirgina tare da zoben ɗaukar ƙarfe. Ba cikakken yumbu bearings. Ƙwallon yumbu masu sauƙi na su na iya rage tasirin centrifugal a babban saurin juyawa kuma suna iya tallafawa ƙananan juzu'i da ƙananan samar da zafi a cikin tsarin ƙirar sandar ƙira daidai.

Duk da haka, ƙwallan yumbu ba su sa kowane igiya ya fi ta atomatik ba. Har ila yau dole ne a yi la'akari da farashi, kaya, ɗaukar kaya, man shafawa, ɗorawa mai girgiza, ƙirar igiya, saurin manufa, da taurin da ake buƙata.

Gudanar da Shirye-shiryen Yana da Mahimmanci kamar yadda ake ɗauka

Mashin-kayan injuna ba safai ya dogara da nau'i ɗaya a keɓe ba. Sau da yawa ana shigar da maƙallan lamba na kusurwa azaman nau'i-nau'i ko saiti masu dacewa. Tsari yana ƙayyadad da yadda sandal ɗin ke sarrafa nauyin axial, nauyin radial, nauyin lokaci, tauri, da haɓakar zafi.

Tatsuniyoyi 6 na gama gari Game da Ƙaƙwalwar Ƙaƙwalwar Maɗaukaki Mai Sauƙi

Labari na 1: Ƙarfafawa tare da mafi girman ƙimar RPM koyaushe yana da kyau

Karya Ma'aunin saurin yana aiki ne kawai ƙarƙashin ƙayyadadden gwaji da yanayin aikace-aikacen. Load, lubrication, riga-kafi, sanyaya, tsari mai ɗaukar nauyi, dacewa, da abubuwan da ke kewaye duk suna shafar saurin da ake iya samu a ainihin mashin ɗin.

Labari na 2: Bakin yumbu Koyaushe Ya Fi Ƙarfe Bearing

Karya Haɗaɗɗen yumbura na yumbu na iya samar da mahimman fa'idodi masu girma, amma ƙirar ƙarfe da aka ƙera na iya zama daidaitaccen aikin injiniya da zaɓi na kasuwanci a ƙananan ko matsakaicin sauri. Daidaitaccen aikace-aikacen yana da mahimmanci fiye da alamar kayan aiki.

Labari na 3: Maɗaukaki Mai Girma Koyaushe yana nufin Maɗaukakin Madaidaici

Maɗaukaki mai girma na iya ƙara taurin kai, amma wuce gona da iri yana ƙara zafi da damuwa na ciki. A babban gudun, tasirin thermal zai iya zama babba don rage dogaro da saurin gudu.

Labari na 4: Ƙarin Man shafawa yana nufin Ingantacciyar Kariya

Karya Yawan man shafawa na iya haifar da zafi da zafi. Ƙaƙƙarfan igiya mai saurin gudu yana buƙatar daidaitaccen nau'in mai, mai sarrafawa mai yawa, da ingantaccen tsarin shiga.

Labari na 5: P4 ko P2 Bearing Ta atomatik Yana Ba da garantin Ƙarfin Kayan aiki-Gabatarwa

Karya Matsakaicin mai ba da gudummawa ɗaya ne. Runout kayan aiki na ƙarshe kuma ya dogara da sandar sandal, taper, kujeru masu ɗaukar nauyi, taro, mariƙin kayan aiki, collet, goro, kayan yankan, gurɓatawa, da tsayin ma'auni.

Labari na 6: Duk Rashin Haihuwar Farko Matsala ce mai inganci

Lalacewar haɓaka mai yiwuwa ne, amma gazawar farko kuma na iya haifar da gurɓatawa, rashin dacewa, wuce gona da iri, rashin isassun man shafawa, gazawar sanyaya, lalacewa, illar lantarki, rashin daidaituwa, nauyi, shigar da bai dace ba, ko aiki a waje da ambulaf ɗin da aka nufa.

Babban Gudun Bearings vs Standard Bearings

Yadda Ake Zaɓan Maɗaukaki Mai Sauƙi don Ƙarfin CNC

Kyakkyawan zaɓi yana farawa da yanayin aiki na sandal, ba tare da lambar ɓangaren da aka kwafi daga wata na'ura ba.

1. ayyana Haqiqanin Gudun Gudun da Zagayowar Wajina

Yi rikodin RPM aiki na yau da kullun, matsakaicin RPM, mitar hanzari, lokacin da aka kashe a babban gudu, dabarun dumama, da kuma ko sandar tana gudana akai-akai ko ta ɗan lokaci. Ƙaƙwalwar da ta taɓa 24,000 RPM don gajerun zagayowar zaƙi yana da buƙatun zafi daban-daban daga wanda ya rage kusa da iyakar gudu na sa'o'i.

2. Ƙayyade Radial, Axial, da Loads na Lokacin

Yanke kaya ya dogara da kayan, diamita mai yanke, kayan aiki mai sanda, ciyarwa, zurfin yanke, mai amfani da kayan aiki, da dabarun mashin. Saitin ɗaukar nauyi dole ne ya goyi bayan waɗannan lodi ba tare da sadaukar da saurin da ake buƙata da taurin da ake buƙata ba.

3. Saita Tauri da Daidaitaccen Bukatun

Ƙayyade runout, ƙarewar ƙasa, maimaituwar juzu'i, da yanke-ƙarfi na aikace-aikacen. Wannan yana jagorantar jerin ɗawainiya, kusurwar lamba, aji da aka riga aka ɗauka, tsari, tsayin tsayi, da ƙirar sandal.

4. Zaba man shafawa da sanyaya tare

Iri ɗaya na iya samun saurin halal daban-daban a ƙarƙashin maiko da lubrication na iska. Don haka ya kamata a zaɓi man shafawa yayin ƙirar dunƙule, ba a ƙara shi azaman bayan tunani ba.

5. Yanke Shawara Ko Hybrid Ceramic Balls Ƙara Ƙimar Gaskiya

Haɗaɗɗen yumburan bearings suna da ban sha'awa musamman lokacin da igiya ke aiki da babban sauri kuma yanayin zafi yana da mahimmanci. Don aikace-aikacen ƙananan sauri, ƙarin farashi na iya samar da iyakataccen dawowa. Kwatanta cikakken abin da ake buƙata na sandal maimakon zabar ƙwallan yumbu azaman fasalin tallace-tallace.

6. Tabbatar da Daidaitawa, Gidaje, Shaft, da Hanyar Taro

Hakuri-zama, daidaiton lissafi, ƙare saman ƙasa, joometry na kafada, matse ƙwaya, daidaiton sarari, da ƙarfin shigarwa yana shafar yanayin ɗauka na ƙarshe. Madaidaicin bearings ba zai iya rama ƙarancin abubuwan da aka gyara sandal ko taron rashin kulawa ba.

Jerin Sayen Siyayya Mai Sauri Mai Girma

Alamun Tsarin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarfafa Yana Bukatar Kulawa

• Zazzabi mai jujjuyawa ko igiya yana tashi da sauri ko sama fiye da kafaffen tushe.

• Sabbin hayaniyar mitoci, rugujewa, dannawa, ko canje-canjen tonal sun bayyana.

• Jijjiga yana ƙaruwa a takamaiman kewayon RPM.

• Spindle runout ko kayan aiki-tip runout yana ƙaruwa idan aka kwatanta da ma'auni na baya.

• Ƙarshen saman yana lalacewa ba tare da bayyanannen kayan aiki ko dalilin shirye-shirye ba.

• Rayuwar kayan aiki tana faɗuwa ko masu yankan kayan aiki sun sa ba daidai ba.

• Ƙunƙwasa yana buƙatar dogon dumi don daidaitawa.

• Lubrication, sanyaya, ko ƙararrawa na isar da iskar ƙararrawa suna zama akai-akai.

Waɗannan alamun ba sa tabbatar da cewa ɗaukar da kansa ba shi da lahani. Gano cikakken tsarin sandal, gami da kayan aiki, ma'auni, sanyaya, lubrication, mota, mai rikodin, shaft, mariƙin kayan aiki, collet, da tarihin faɗuwar kwanan nan.

Babban Gudun Bearing a cikin Zhong Hua Jiang CNC Aikace-aikacen Spindle

Zaɓin ɗaukar nauyi yana da mahimmanci musamman a cikin manyan injinan sandar CNC mai sauri saboda ƙarfin igiya, RPM, girman collet, sanyaya, nauyin kayan aiki, sake zagayowar aiki, da kayan da aka nufa duk suna shafar yanayin aiki. Zhong Hua Jiang yana ba da jeri na CNC wanda ke amfani da ƙirar ƙwallon yumbu a cikin zaɓaɓɓun ƙirar dunƙule masu sauri.

Misali, an keɓance wasu gyare-gyaren sandal mai sanyaya ruwa na Zhong Hua Jiang don tuƙi na CNC mai sauri da sassaƙa tare da yumbu-ball bears. Har ila yau ya kamata a zaɓi madaidaicin sandal ɗin daga cikakkiyar aikace-aikacen maimakon daga kalmar ' yumbu ' kaɗai.

Lokacin neman tallafin sandal, samar da wutar lantarki da ake buƙata, ƙarfin lantarki, ƙididdiga da matsakaicin RPM, collet ko mai riƙe kayan aiki, abu, diamita mai yanka, zagayowar aiki, hanyar sanyaya, VFD, nau'in injin, da kayan yankan da ake tsammanin. Idan kuna musanya sandal ɗin da ke akwai, kuma samar da farantin suna da ma'aunin hawa.

Sami Shawarar Spindle ta CNC

FAQ Game da Matsalolin Maɗaukaki Mai Sauƙi

Menene ake la'akari da ɗaukar nauyi mai sauri?

Babu wani RPM guda ɗaya da ke yin kowane ɗaukar hoto 'maɗaukakin gudu.' Diamita mai ɗaukar nauyi yana canza tsananin yanayin gudun, don haka injiniyoyi kuma suna amfani da ma'aunin saurin n × d _m . Iyakan ƙira na masana'anta, hanyar lubrication, preload, lodi, sanyaya, da yanayin aikace-aikacen yakamata su ƙayyade dacewa.

Menene ma'anar n × dm don ɗaukar nauyi mai sauri?

Ma'auni ne da aka ƙididdige shi ta hanyar ninka saurin jujjuyawar n ta ma'ana mai ɗaukar diamita d _m . Ana ƙididdige maƙasudin diamita yawanci azaman (mai ɗaukar nauyi + ɗaukar diamita na waje) ÷ 2. Yana ba da damar kwatanta ma'ana fiye da RPM kaɗai.

Shin yumbu bearings ya fi kyau ga maɗaukakin CNC mai sauri?

Haɗaɗɗen yumbura na yumbu na iya ba da fa'idodi masu mahimmanci a babban saurin saboda ƙwallan nitride na silicon suna da ƙarancin taro fiye da ƙwallon ƙarfe kuma suna iya rage tasirin centrifugal da haɓakar zafi. Ba ta atomatik zaɓi mafi kyau ga kowane igiya; farashi, kaya, preload, man shafawa, taurin kai, da saurin aiki har yanzu suna da mahimmanci.

Shin matasan yumbun bearings cikakken yumbu ne?

A'a. A aikace-aikacen spindle, ' hybrid ceramic' yawanci yana nufin abubuwa masu jujjuya yumbu-yawan ƙwallayen siliki nitride-haɗe da zoben ƙarfe na ciki da na waje.

Shin ƙarin ɗaukar nauyi na haɓaka yana haɓaka sandar CNC?

Ba koyaushe ba. Haɓaka ɗaukar nauyi na iya haɓaka taurin sanda, amma kuma yana ƙara nauyin ciki, gogayya, da zafi. Maɗaukakin maɗaukaki masu saurin gudu galibi suna buƙatar zaɓi na farko na a hankali don daidaita tsauri tare da zafin jiki da ƙarfin sauri.

Shin maiko ko man-iska mai lubrication ya fi kyau don madaidaicin igiya mai sauri?

Dukansu suna iya dacewa. Man shafawa yana ba da tsari mafi sauƙi kuma ana amfani dashi ko'ina a cikin ƙwanƙwasa ƙwanƙwasa, yayin da mai-iska mai zai iya tallafawa aikace-aikace masu sauri ta hanyar isar da ƙananan adadin mai mai sarrafawa. Madaidaicin zaɓi ya dogara da ƙira, saurin manufa, zafin jiki, zagayowar aiki, da ƙirar ƙirar dunƙule.

Maiko da yawa zai iya lalata maɗaurin igiya mai sauri?

Yawan man shafawa na iya haifar da tashin hankali da zafi mara kyau, musamman lokacin shiga ciki. Ya kamata a yi amfani da nau'in maiko kuma a cika adadin da aka ƙayyade don ƙira da ƙirar sandal.

Wane nau'in ɗaukar hoto ne akafi amfani dashi a cikin manyan igiyoyin CNC masu sauri?

Ana amfani da ƙwalƙwalwar ƙwallon ƙafar madaidaiciyar madaidaiciyar kusurwa saboda suna iya tallafawa haɗaɗɗun radial da axial yayin samar da preload mai sarrafawa da daidaiton gudu mai tsayi. Wasu zane-zanen sandal kuma suna amfani da abin nadi na silindi ko wasu nau'ikan nau'ikan nau'ikan ɗamara a matsayin cikakken tsari.

Shin madaidaicin ɗaukar hoto yana ba da garantin ƙarancin CNC spindle runout?

A'a. Madaidaicin bearings yana da mahimmanci, amma runout na ƙarshe ya dogara da sandar sandar, kujerun ɗawainiya, taper, gidaje, tsarin ɗaukar kaya, taro, mariƙin kayan aiki, collet, kayan yankan, gurɓatawa da wurin aunawa.

Ta yaya zan iya gane idan igiyoyin igiya suna kasawa?

Alamomin faɗakarwa na gama gari sun haɗa da hayaniyar da ba ta al'ada ba, ƙara girgiza, yanayin zafin aiki mafi girma, tashin gudu, tabarbarewar ƙasa da ɗan gajeren rayuwar kayan aiki. Waɗannan alamun ya kamata su haifar da ganewar asali na gabaɗayan tsarin spindle maimakon ɗaukan lahani nan take.

Kammalawa: Ayyukan Haɓakawa Mai Sauƙi Sakamakon Tsarin ne

Mafi mahimmancin gaskiya game da manyan bearings mai sauri shine cewa babu wani ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ko ɗaukar nauyi zai yi kyau a cikin sandar CNC . RPM, ƙwallan yumbu, madaidaicin daraja, ko ƙaddamarwa na iya kowane al'amari, amma babu wanda yakamata a kimanta shi kaɗai.

Dogara mai tsayin daka mai tsayin ƙira yana buƙatar daidaitaccen haɗin girman ɗaukar hoto, ma'aunin saurin gudu, lissafi na ciki, kusurwar lamba, preload, tsari, lubrication, sanyaya, dacewa, tsafta, daidaiton sanda da mahalli, yankan kaya, da sarrafa zafi.

Ga masu siyar da injin CNC da masu ginin injin, tambaya mai amfani ba shine 'Wanne nau'i ne na RPM mafi girma?' Shi ne 'Wanne tsarin ɗaukar hoto zai iya isar da saurin da ake buƙata, taurin kai, daidaito, kwanciyar hankali da yanayin sabis a cikin wannan ƙayyadaddun igiya?'

Tuntuɓi Zhong Hua Jiang don Tallafin Spindle