Abstract
Cov txheej txheem high-precision rau convexity ntawm cylindrical rollers thiab tapered rollers. Ib daim ntawv qhia cov menyuam nrog ob lub voj voog dov qhov chaw raws li conical nto yog siv, thiab cov axis ntawm lub workpiece yog inclined mus rau sab laug los yog sab xis ntawm lub kaum sab xis ntawm nws cov kev taw qhia B. Lub sab sauv generatrix ntawm lub workpiece yog parallel rau lub dav hlau tsim los ntawm lub axis ntawm ob daim ntawv qhia rollers. Raws li kev txhawb nqa thiab kev tsav tsheb ntawm cov ntawv qhia cov menyuam thiab kev ua haujlwm ntawm pawg oilstone, sab nraud ntawm lub workpiece tuaj yeem tau txais "logarithmic nkhaus" convex shape, uas muaj cov yam ntxwv ntawm kev ua haujlwm yooj yim thiab ruaj khov. Tsis tas li ntawd, kev tsim thiab kev tsim cov ntawv qhia cov menyuam yog qhov yooj yim, haum rau kev txhawb nqa dav.
Kev piav qhia
Tam sim no invention muaj feem xyuam rau ib tug txheej txheem rau kev sib tsoo, tshwj xeeb tshaj yog ib tug convex ultra precision txheej txheem rau cylindrical rollers, tapered rollers los yog cov khoom zoo sib xws.
Cov menyuam cylindrical uas twb muaj lawm convexity ultra precision tshuab siv ultra precision qhia rollers tsis muaj kauv tav. Nyob rau hauv thiaj li rau cov txheej txheem cylindrical cov menyuam txav mus rau pem hauv ntej tuaj yeem, ob lub log qhia yuav tsum tau inclined ntawm ib lub kaum sab xis rau ib leeg hauv txoj kab ntsug. Yog li ntawd, kev tsim thiab tsim ntawm phau ntawv qhia no yog qhov nyuaj heev. Qee lub tuam txhab yuav tsum qhia nws los ntawm txawv teb chaws, thiab lub convexity tshaj los ntawm txoj kev no yog semi convex los yog tag nrho convex, uas tsis tuaj yeem ua tiav logarithmic nkhaus convexity uas tuaj yeem tiv taus cov load feem ntau; Txawm li cas los xij, ultra precision convexity ntawm tapered rollers yog ib qho khoob hauv Suav teb.
Lub hom phiaj ntawm qhov kev tsim khoom tam sim no yog muab cov txheej txheem convex ultra precision uas ua rau cov cylindrical rollers, tapered rollers, lossis cov khoom zoo sib xws kom ua tiav logarithmic nkhaus zoo li convexity hauv lawv cov diameters sab nraud, nrog kev tsim khoom yooj yim thiab kev ua haujlwm yooj yim ntawm cov cuab yeej.
Cov kev daws teeb meem ntawm qhov kev tsim tawm tam sim no yog cov menyuam cylindrical thiab tapered roller convexity ultra precision txheej txheem, uas tau txais cov txheej txheem tsim los ntawm ob qho kev sib koom ua ke thiab cov pab pawg oilstone. Lub workpiece rotates tsis tu ncua nyob rau hauv cov kev taw qhia B tau teev tseg los ntawm cov kev taw qhia rollers thaum tau txais kev txhawb nqa thiab tsav los ntawm cov kev taw qhia rollers. Nyob rau hauv qhov kev txiav txim ntawm lub vibration zaus f thiab siab P ntawm oilstone pab pawg neeg, lub sab nraud txoj kab uas hla ntawm cov menyuam yog ua tiav siv ib tug centerless los ntawm ultra precision machining txoj kev mus cuag convexity. Nws qhov tshwj xeeb tshwj xeeb yog tias cov kab axis ntawm ob daim ntawv qhia chais yog tib yam, thiab cov kauv zawj dov nto qhib los ntawm lawv yog lub khob hliav qab. Ib qho ntawm cov kev taw qhia rollers yog nruab nrog ib tug kauv guard ntug. Lub kauv zawj dov saum npoo ntawm phau ntawv qhia cov menyuam yog sib txuam nrog cov txheej txheem ntawm lub workpiece, kom lub axis ntawm lub workpiece yog inclined mus rau sab laug los yog sab xis los ntawm lub kaum sab xis ntawm nws txoj kev nce qib B, thiab sab sauv generatrix ntawm lub workpiece. yog parallel rau lub dav hlau tsim los ntawm lub axis ntawm cov ntawv qhia cov menyuam.
Thaum lub workpiece nyob rau hauv cov kev daws teeb meem ntawm tam sim no invention yog ib tug cylindrical cov menyuam, lub khob hliav qab lub kaum sab xis ntawm lub kauv zawj dov nto cones ntawm ob phau ntawv qhia chais yog sib npaug ntawm qhov loj thiab opposite nyob rau hauv kev coj. Tus nqi ntawm lub kaum sab xis yog nruab nrab ntawm 0.5 degree thiab 2 degree .
Thaum lub workpiece nyob rau hauv cov kev daws teeb meem ntawm tam sim no invention yog ib tug tapered rollers, lub khob hliav qab lub kaum sab xis ntawm cov kauv zawj dov nto cones ntawm ob phau ntawv qhia rollers tsis sib npaug ntawm qhov loj thiab rov qab rau hauv kev coj. Tus nqi ntawm lub inclination lub kaum sab xis yog ib nrab ntawm lub khob hliav qab ntawm tapered roller ntxiv rau 0.5 degree rau 2 degree .
Vim yog kev siv oblique ultra precision tshuab, sab nraud txoj kab uas hla ntawm cylindrical rollers thiab tapered rollers nyob rau hauv qhov kev tsim no tuaj yeem tau txais "logarithmic nkhaus" convex shape, uas tuaj yeem ua rau lub neej kev pab cuam ntawm cov khoom ntau dua 2-3 zaug. . Vim lub xub ntiag ntawm ib tug kauv ntug ntawm ib qho ntawm cov kev taw qhia chais, cov kauv zawj dov nto ntawm ob phau ntawv qhia chais tau tsim raws li ib tug complementary conical nto, ua rau kev tsim thiab ua ntawm cov kev taw qhia rollers yooj yim, txoj kev yooj yim, lub txheej txheem kev ua tau zoo ruaj khov, thiab yooj yim rau kev nthuav dav thiab siv tau. Qhov no yuav ua lub luag haujlwm tseem ceeb hauv kev tsim kom muaj txiaj ntsig zoo thiab ua haujlwm zoo rau cov lag luam.
Daim duab qhia ntawm daim duab txuas yog raws li nram no:
Daim duab 1 yog ib daim duab schematic ntawm sab nraud ntawm lub ultra precision cylindrical roller ntawm qhov kev tsim tam sim no, thiab ua haujlwm raws li kev kos duab kos duab ntawm cov lus qhia tshwj xeeb;
Daim duab 2 yog daim duab schematic ntawm sab xis ntawm daim duab 1;
Daim duab 3 yog schematic hauv qab saib ntawm daim duab 1;
Daim duab 4 yog ib daim duab schematic ntawm sab nraud ntawm lub ultra precision tapered roller ntawm qhov kev tsim tam sim no;
Daim duab 5 qhia txog cov duab yooj yim ntawm "logarithmic nkhaus" convexity tau los ntawm ultra precision txoj kev ntawm tam sim no invention.
Qhov kev tsim kho tam sim no yuav piav qhia ntxiv nrog rau cov duab kos: Daim duab 1, 2, thiab 3 yog cov duab kos duab ntawm cylindrical roller ultra precision. Cov cuab yeej siv muaj xws li cov lus qhia rau cov menyuam 1 nrog rau kev thaiv cov npoo, cov ntawv qhia cov menyuam 2 tsis muaj qhov thaiv cov ntug, thiab ib pawg oilstone 3. Cov workpiece 4 yog cov menyuam cylindrical. Cov lus qhia rau cov menyuam 1 yog nruab nrog kauv ntug 5, uas ua lub luag haujlwm hauv kev thawb lub workpiece 4 rau pem hauv ntej. Lub khob hliav qab ntawm cov kauv zawj dov qhov chaw ntawm cov lus qhia rollers 1 thiab 2 yog qhov sib npaug ntawm qhov loj, rov qab rau hauv kev coj, thiab sib npaug hauv axis. Lub axis ntawm workpiece 4 yog inclined rau sab laug lossis sab xis los ntawm lub kaum sab xis ntawm 0.5 degree mus rau 2 degree txheeb ze rau nws cov kev taw qhia nce B. Lub dav hlau tsim los ntawm lub sab sauv generatrix ntawm workpiece 4 thiab cov axis ntawm kev taw qhia rollers 1 thiab 2 yog parallel. Lub diameters ntawm ob phau ntawv qhia rollers 1 thiab 2 yog qhov sib npaug, thiab kev sib hloov ceev thiab kev taw qhia yog tib yam. Nyob rau hauv lawv cov kev txhawb nqa thiab kev tsav tsheb, lub workpiece 4 tig ntawm nws tus kheej thaum nce mus rau hauv kev taw qhia los ntawm B. Rau txhua qhov kev sib hloov ntawm cov kev taw qhia rollers 1 thiab 2, lub workpiece 4 nce mus los ntawm ib lub suab. Nyob rau hauv qhov kev txiav txim ntawm lub vibration zaus f thiab siab P ntawm cov roj pob zeb pab pawg neeg 3, workpiece 4 yuav tau txais ib tug "logarithmic nkhaus" convex zoo li qhia nyob rau hauv daim duab 5. Lub kaum sab xis ntawm qhov chaw ntawm workpiece 4 thiab lub hauv paus kab ntawm kev taw qhia rollers 1 thiab 2 feem ntau yog coj li 12 degree txog 18 degree.
Daim duab 4 yog daim duab schematic ntawm super precision ntawm lub convexity ntawm tapered roller. Cov lus qhia rau cov menyuam 6 yog nruab nrog lub kauv tuav ntug 9. Qhov sib txawv ntawm kev qhia rollers 6 thiab 7 thiab qhia rollers 1 thiab 2 yog tias lub khob hliav qab ntawm lawv cov kauv zawj dov qhov chaw tsis sib npaug ntawm qhov loj thiab qhov sib txawv ntawm cov kev taw qhia. Qhov loj ntawm lub khob hliav qab lub kaum sab xis yog txiav txim los ntawm lub khob hliav qab ntawm lub tapered roller. Workpiece 8 yog ib tug tapered rollers, thiab lub dav hlau tsim los ntawm lub sab sauv generatrix ntawm Workpiece 8 thiab cov axis kab ntawm kev taw qhia rollers 6 thiab 7 yog parallel. Txoj kab axis ntawm Workpiece 8 yog inclined rau sab laug lossis txoj cai txheeb ze rau nws txoj kev nce qib B, thiab lub kaum sab xis ntawm lub tapered roller yog ib nrab ntxiv rau lub kaum sab xis ntawm 0.5 degree rau 2 degree . Raws li kev txhawb nqa thiab kev tsav tsheb ntawm cov lus qhia 6 thiab 7, workpiece 8 ua tiav super precision convexity nyob rau hauv kev co zaus f thiab siab P ntawm oilstone pawg 3, tau txais "logarithmic nkhaus" txheej kab raws li qhia hauv daim duab 5.
Daim duab 5 qhia cov duab ntawm lub logarithmic nkhaus ntawm lub hauv paus cylindrical thiab tapered roller generatrix profile. Thaum tus nqi ntawm lub inclination lub kaum sab xis hloov, cov duab ntawm logarithmic nkhaus kuj hloov me ntsis.
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