Juyawa bearings

Bench ɗin jujjuyawar da aka saba amfani da shi a cikin kayan aikin injin na CNC ya haɗa da benci na aiki da kuma CNC rotary workbench.

Ana iya amfani da tebur na jujjuyawar CNC don cimma motsin ciyar da madauwari. Baya ga fahimtar motsin ciyarwar madauwari, tebur na jujjuyawar CNC (wanda ake magana da shi azaman CNC turntable) kuma yana iya kammala motsi mai nuni.

Ana amfani da tebur mai jujjuyawa a cikin injunan milling na CNC daban-daban, injunan ban sha'awa, lathes na tsaye daban-daban, niƙa ƙarshen da sauran kayan aikin injin. Baya ga buƙatun cewa tebur na jujjuya zai iya ɗaukar nauyin kayan aikin da kyau, Hakanan wajibi ne don tabbatar da daidaiton jujjuyawar sa a ƙarƙashin kaya.

Ƙaƙwalwar juyawa, a matsayin babban ɓangaren juzu'i, ba wai kawai yana buƙatar samun ƙarfin nauyi ba, amma har ma yana da daidaiton jujjuyawar juyi, babban ƙarfin jujjuyawa, da ƙarfin saurin gudu yayin aiki na juyawa.

A cikin zane narotary tebur, nau'ikan nau'ikan nau'ikan da aka fi amfani da su sun kasu kusan zuwa nau'ikan masu zuwa:

Turar ƙwallon ƙwallon:cylindrical abin nadi bearings

Ƙaƙwalwar ƙwallon ƙwallon ƙafa na iya yin tsayayya da wani ƙarfin axial, don haka ana amfani da maɗaurin don ɗaukar nauyin aikin;Silindrical roller bearings, a gefe guda, ana amfani da su musamman don matsayi na radial da kuma jure wa dakarun radial na waje (irin su yankan runduna, sojojin niƙa, da sauransu). Irin wannan ƙirar ana amfani da ita sosai kuma ba ta da tsada. Saboda ƙwalwar turawa abin lamba ce, ƙarfin ɗaukar axial ɗin sa yana da iyaka, kuma ana amfani da shi a cikin ƙaramin ko matsakaicin girman inji kayan aikin jujjuyawar tebur. Bugu da kari, lubrication na zura kwallaye shima ya fi wahala.

Hydrostatic bearings:Madaidaicin silinda na abin nadi

Hydrostatic bearing wani nau'i ne na zamewa wanda ya dogara ga samar da man fetur na waje kuma ya kafa fim din mai mai ɗaukar nauyin hydrostatic a cikin nauyin don cimma ruwa mai laushi. Halin hydrostatic yana aiki koyaushe a ƙarƙashin lubrication na ruwa daga farko zuwa tsayawa, don haka babu lalacewa, tsawon rayuwar sabis da ƙarancin farawa; Bugu da ƙari, irin wannan nau'in kuma yana da fa'idodin jujjuyawar daidaitattun juzu'i, babban taurin fim ɗin mai, kuma yana iya hana motsin fim ɗin mai. Madaidaicin abin nadi na silinda yana da kyakkyawan ƙarfin ɗaukar radial, kuma saboda amfani da madaidaiciyar bearings, daidaiton jujjuyawar tebur ɗin na iya zama da garanti sosai. Teburan rotary da ke amfani da wannan zane na iya jure wa sojojin axial masu girman gaske, wasu daga cikinsu suna da nauyin fiye da ton 200 kuma suna da diamita na juyawa sama da mita 10. Duk da haka, irin wannan ƙirar kuma yana da wasu kurakurai, saboda dole ne a samar da nau'in hydrostatic tare da tsarin samar da man fetur na musamman don samar da man fetur, kulawa ya fi rikitarwa, kuma farashin yana da yawa.

Ketare bearings nadi

Aiwatar da ƙetaren abin nadi a kan na'urorin juyawa shima ya zama ruwan dare gama gari. Wuraren nadi da aka ƙetare suna da alamun hanyoyin tsere guda biyu a cikin ɗaukar hoto, layuka biyu na rollers masu tsararru. Idan aka kwatanta da turancin gargajiya mai ɗauke da radial tsakiya masu ɗaukar haɗin kai,ketare bearings nadisu ne m, m da kuma sauƙaƙe zanen tebur, don haka rage farashin turntable.

Bugu da ƙari, saboda ƙaddamar da ƙaddamar da ƙaddamarwa, ƙuƙwalwar ƙuƙwalwa suna da matsayi mai mahimmanci, wanda ke tabbatar da ƙwanƙwasa da madaidaicin juyawa. Godiya ga zane na layuka biyu na rollers da ke ƙetare, za a iya haɓaka tasirin tasiri mai tasiri sosai, don haka waɗannan bearings suna da tsayin daka don jujjuya lokutan. A cikin ƙetare nadi bearings, akwai iri biyu: na farko shi ne cylindrical crossed abin nadi bearings, na biyu kuma tapered ƙetare nadi bearings. Gabaɗaya, ƙwanƙwasa ƙetare cylindrical ba su da tsada fiye da ƙwanƙolin abin nadi da aka ƙera kuma sun dace da aikace-aikacen jujjuya tare da ƙarancin saurin gudu; Ƙaƙwalwar abin nadi wanda aka ƙetare yana ɗaukar ƙirar mirgina mai tsabta na abin nadi, don haka irin wannan nau'in yana da:

• Babban daidaitaccen gudu

• Babban saurin iyawa

• Rage tsawon shaft da farashin injina, iyakanceccen bambance-bambance a cikin lissafi saboda fadada zafi

• Rarraba nailan, ƙaramin lokacin inertia, ƙarancin farawa, mai sauƙin sarrafa fihirisar angular

• Ingantaccen kayan aiki, babban tauri da ƙarancin gudu

• Layin layi, babban taurin kai, babban madaidaicin aikin abin nadi

• Carburized karfe yana ba da kyakkyawar juriya mai tasiri da juriya na lalacewa

• Mai sauƙi amma mai mai kyau

Lokacin hawa bearings, abokin ciniki kawai yana buƙatar preload ƙetare bearings zuwa ƙimar da aka ba da shawarar, maimakon samun tsarin daidaitawa mai sarƙaƙƙiya kamar naɗaɗɗen ruwa. Wuraren nadi da aka ketare suna da sauƙin shigarwa kuma suna da sauƙin daidaita sigar shigarwa na asali ko hanyar kulawa. Wuraren nadi da aka ketare sun dace da kowane nau'in injuna masu ban sha'awa a tsaye ko a kwance, da aikace-aikace irin su injina na tsaye, jujjuyawar tsaye da manyan injunan niƙa kaya.

A matsayin ginshiƙan ɓangarorin dunƙule da jujjuyawar kayan aikin injin, ɗamarar tana taka muhimmiyar rawa wajen aiwatar da aikin injin. Domin samun damar zaɓar madaidaicin girman da nau'in ɗaukar nauyi, muna buƙatar la'akari da yanayin aiki daban-daban, kamar saurin gudu, lubrication, nau'in hawa, taurin sanda, daidaito da sauran buƙatu. Dangane da abin da ya shafi ɗaukar kansa, kawai ta hanyar cikakkiyar fahimtar fasalin ƙirar sa da fa'idodi da rashin amfani waɗanda za mu iya fitar da mafi kyawun aikin ɗaukar hoto.
Idan kuna son ƙarin bayani mai ma'ana, da fatan za a tuntuɓe mu:
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