1 xov txiav
Feem ntau, nws yog hais txog cov txheej txheem ntawm machining xov ntawm workpiece nrog cov cuab yeej sib tsoo los yog cov cuab yeej sib tsoo, feem ntau suav nrog kev xa, milling, tapping thiab threading sib tsoo, sib tsoo thiab cua daj cua dub txiav, thiab lwm yam. Thaum tig, milling thiab sib tsoo cov xov, cov saw hlau kis tau tus mob. lub tshuab cuab yeej xyuas kom meej tias lub cuab yeej tig, milling cutter lossis sib tsoo lub log txav cov hlau lead kom raug thiab sib npaug raws li cov kev taw qhia axial ntawm lub workpiece txhua qhov kev sib hloov ntawm lub workpiece. Thaum tapping lossis threading, lub cuab yeej (kais lossis tuag) tig txheeb ze rau lub workpiece, thiab thawj cov xov groove coj lub cuab yeej (los yog workpiece) txav axially.
2 xov tig
Kev tsim cov cuab yeej tig los yog cov cuab yeej siv xov tooj tuaj yeem siv rau kev xa xov ntawm lub tshuab dhos (saib xov ua cov cuab yeej). Tig xov nrog txoj kev tig lub cuab yeej yog ib txoj hauv kev rau ib daim thiab cov khoom me me ntawm cov xov workpiece vim nws cov qauv yooj yim; tig xov nrog xov combing cuab yeej muaj ntau lawm efficiency, tab sis nws cov qauv yog complex, yog li nws tsuas yog haum rau xa luv xov workpiece nrog zoo hniav nyob rau hauv nruab nrab thiab loj batch ntau lawm. Lub suab raug ntawm txoj hlua trapezoidal nrog cov tshuab dhos dav dav tuaj yeem ncav cuag 8-9 qib (jb2886-81, tib yam hauv qab no); cov khoom tsim tau los yog qhov tseeb tuaj yeem txhim kho tau zoo thaum machining xov ntawm tshwj xeeb xov tshuab dhos.
3 xov milling
Ntawm cov xov milling tshuab, disc milling cutter los yog zuag milling cutter yog siv rau milling. Disc milling cutter yog tsuas yog siv rau milling trapezoid sab nraud xov ntawm cov ntsia hlau pas nrig, cua nab thiab lwm yam workpieces. Comb milling cutter yog siv rau milling sab hauv thiab sab nraud cov xov thiab taper xov. Vim tias qhov ntev ntawm nws txoj haujlwm ua haujlwm ntev dua qhov ntev ntawm cov xov yuav tsum tau ua los ntawm ntau ntug milling cutter, lub workpiece tuaj yeem ua tiav los ntawm kev tig 1.25-1.5 revolutions, nrog cov khoom lag luam siab. Qhov tseeb ntawm cov xov milling tuaj yeem ncav cuag 8-9 qib, thiab qhov roughness ntawm qhov chaw yog r5-0.63 μ M. Qhov no yog qhov tsim nyog rau cov khoom loj ntawm cov xov xov xov workpiece lossis ntxhib machining ua ntej sib tsoo.
4 xov sib tsoo
Nws yog tsuas yog siv rau cov txheej txheem precision xov ntawm hardened workpiece ntawm xov grinder. Raws li qhov sib txawv ntawm qhov sib txawv ntawm qhov sib tsoo log, nws tuaj yeem muab faib ua ob hom: ib kab sib tsoo log thiab ntau kab sib tsoo log. Lub suab raug ntawm ib kab sib tsoo log yog 5-6 qib, thiab qhov roughness ntawm qhov chaw yog r1.25-0.08 μ m, yog li nws yooj yim los ua kom tiav lub log sib tsoo. Txoj kev no yog tsim rau kev sib tsoo precision ntsia hlau, xov gauge, worm, me me batch ntawm xov workpiece thiab precision hob. Muaj ob hom kev sib tsoo: longitudinal sib tsoo thiab txiav hauv kev sib tsoo. Qhov dav ntawm lub log sib tsoo nrog txoj kev sib tsoo ntev yog tsawg dua qhov ntev ntawm cov xov yuav tsum tau sib tsoo, thiab cov xov tuaj yeem sib tsoo mus rau qhov kawg loj tom qab lub log sib tsoo txav mus ntev ib zaug lossis ob peb zaug. Qhov dav ntawm kev sib tsoo lub log ntawm kev txiav hauv kev sib tsoo yog qhov loj dua qhov ntev ntawm cov xov yuav tsum tau grinded. Lub log sib tsoo txiav rau hauv qhov chaw ntawm lub workpiece radially, thiab lub workpiece tuaj yeem sib tsoo tom qab tig txog 1.25 revolutions. Cov khoom tsim tau ntau dua, tab sis qhov tseeb yog me ntsis qis, thiab kev hnav khaub ncaws ntawm kev sib tsoo log yog qhov nyuaj dua. Txoj kev txiav hauv kev sib tsoo yog tsim rau shoveling ntau cov kais dej thiab sib tsoo qee cov xov fastening. Hlau ua, tsim nyog mloog!
5 xov sib tsoo
Cov txiv ntoo los yog ntsia hlau hom xov lapping cuab yeej yog ua los ntawm cov ntaub ntawv mos xws li cam khwb cia hlau. Qhov chaw ntawm cov xov ua tiav ntawm lub workpiece nrog lub suab yuam kev yog grinded los ntawm pem hauv ntej thiab thim rov qab kev sib hloov los txhim kho lub suab raug. Lub hardened internal thread feem ntau yog tshem tawm los ntawm kev sib tsoo los txhim kho qhov tseeb.
6 tapping thiab threading
Tapping yog siv ib qho torque los ntsia hlau kais rau hauv lub qhov ua ntej drilled hauv qab ntawm lub workpiece los ua cov xov sab hauv.
Threading yog txiav cov xov sab nraud ntawm lub bar (los yog raj) workpiece nrog ib tug tuag. Lub machining raug ntawm tapping los yog threading nyob ntawm qhov tseeb ntawm kais los yog tuag. Txawm hais tias muaj ntau txoj hauv kev los ua cov xov sab hauv thiab sab nraud, cov xov me me hauv cov xov tsuas tuaj yeem ua tiav los ntawm cov kais dej. Tapping thiab threading tuaj yeem ua los ntawm tes lossis los ntawm tshuab dhos, drilling tshuab, tapping tshuab thiab threading tshuab.
7 xov dov
Cov txheej txheem ntawm kev tsim thiab dov tuag los tsim cov yas deformation ntawm workpiece kom tau txais xov dov feem ntau yog ua los ntawm cov xov dov los yog lub tshuab dhos tsis siv neeg txuas nrog tsis siv neeg qhib thiab kaw xov dov lub taub hau, uas yog tsim rau huab hwm coj ntau lawm ntawm lwm cov xov. qauv ntawm tus qauv fasteners thiab lwm yam threaded pob qij txha. Feem ntau, sab nraud ntawm cov xov dov tsis ntau tshaj 25 hli, qhov ntev tsis tshaj 100 hli, thiab cov xov raug tuaj yeem ncav cuag qib 2 (gb197-63). Txoj kab uas hla ntawm qhov khoob uas siv yog roughly sib npaug rau lub suab txoj kab uas hla ntawm cov xov yuav tsum tau ua. Feem ntau, cov xov sab hauv tsis tuaj yeem ua tiav los ntawm kev dov, tab sis rau cov khoom muag muag, cov xov tooj cua txias tuaj yeem siv yam tsis muaj qhov txuas extrusion kais (qhov siab tshaj plaws txoj kab uas hla tuaj yeem ncav cuag li 30 hli), thiab txoj haujlwm ua haujlwm zoo ib yam li tapping. Lub torque yuav tsum tau rau txias extrusion ntawm cov xov sab hauv yog hais txog 1 lub sij hawm loj tshaj qhov ntawd rau tapping, thiab lub machining raug thiab nto zoo yog me ntsis siab tshaj qhov tapping.
Qhov zoo ntawm cov xov dov yog raws li hauv qab no: ① qhov nto roughness tsawg tshaj li tig, milling thiab sib tsoo; ② qhov chaw ntawm cov xov tom qab dov tuaj yeem txhim kho lub zog thiab hardness vim kev ua haujlwm txias txias; ③ cov khoom siv yog siab; ④ cov khoom tsim tau yog ob npaug piv nrog cov txheej txheem txiav, thiab nws yooj yim kom paub automation; ⑤ lub neej ua haujlwm ntawm dov tuag yog ntev heev. Txawm li cas los xij, qhov nyuaj ntawm cov khoom siv ua haujlwm tsis yog ntau tshaj hrc40, qhov tseeb ntawm qhov loj me me yuav tsum siab, qhov tseeb thiab hardness ntawm dov tuag kuj yuav tsum siab, yog li nws nyuaj rau tsim cov tuag, thiab nws tsis haum rau cov xov nrog asymmetric dov Profile.
Raws li qhov sib txawv dov tuag, xov dov tuaj yeem muab faib ua ob hom: xov dov thiab xov dov.
Ob lub xov dov daim hlau nrog xov profile yog staggered los ntawm 1/2 suab, thiab cov phaj zoo li qub yog tsau, thiab cov phaj txav txav mus rau hauv ib txoj kab ncaj nraim mus rau lub phaj zoo li qub. Xav kawm UG programming hauv pab pawg 565120797 tuaj yeem pab koj, thaum lub workpiece rau hauv ob daim hlau, txav phaj rau pem hauv ntej los rub thiab nias lub workpiece, ua rau nws cov yas deformation rau hauv xov.
Muaj peb hom dov: radial dov, tangential dov thiab dov taub hau dov.
① radial xov dov: ob (los yog peb) xov zoo li tus xov dov lub log yog ntsia rau ntawm kev sib txuas ua ke shafts, lub workpiece muab tso rau ntawm kev txhawb nqa ntawm ob lub log, thiab ob lub log tig ntawm tib lub nrawm hauv tib txoj kev, ib qho ntawm uas kuj ua radial feed motion. Lub workpiece yog tsav los ntawm lub dov lub log kom tig, thiab saum npoo yog extruded radially los ua ib tug xov. Cov txheej txheem dov zoo sib xws kuj tuaj yeem siv rau qee cov ntsia hlau uas tsis muaj qhov yuav tsum tau ua.
(2) tangential xov dov: tseem hu ua planetary xov dov. Cov cuab yeej dov muaj ib lub voj voog nruab nrab ntawm cov xov dov lub log thiab peb qhov ruaj khov arc-zoo li tus xov daim hlau. Thaum lub sij hawm dov, lub workpiece tuaj yeem noj tsis tu ncua, yog li cov khoom tsim tau siab dua li cov xov rubbing thiab radial dov.
③ xov dov ntawm xov dov lub taub hau: nws yog nqa tawm ntawm lub tshuab dhos tsis siv neeg thiab feem ntau yog siv los ua cov xov luv luv ntawm lub workpiece. Muaj 3-4 rolling rollers faib uniformly nyob ib ncig ntawm lub workpiece. Thaum dov, lub workpiece tig, thiab lub taub hau dov axially dov lub workpiece tawm ntawm cov xov.
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Post lub sij hawm: Oct-04-2019