Xov txiav
Feem ntau yog hais txog cov txheej txheem ntawm kev ua cov xov ntawm lub workpiece siv cov cuab yeej sib sau lossis cov cuab yeej abrasive, feem ntau suav nrog kev xa, milling, tapping, threading, sib tsoo, sib tsoo thiab cua daj cua dub. Thaum tig, milling thiab sib tsoo xov, txhua zaus lub workpiece rotates, cov saw hlau kis tau tus mob ntawm lub tshuab cuab yeej xyuas kom meej tias lub cuab tam tig, milling cutter los yog sib tsoo log txav ib qho txhuas kom raug thiab sib npaug ntawm axial kev taw qhia ntawm lub workpiece. Thaum tapping lossis threading, lub cuab yeej (kais lossis tuag) thiab cov khoom ua haujlwm ua cov lus sib txawv, thiab cov xov uas dhau los ua ke qhia cov cuab yeej (lossis workpiece) kom txav axially.
duab
Cov xov tuaj yeem tig rau ntawm lub tshuab dhos uas siv cov cuab yeej tsim los yog xov comb (saib Threading Tools). Tig threads nrog kev sib sau cov cuab yeej yog ib txoj hauv kev rau ib-thooj thiab me-batch ntau lawm ntawm threaded workpieces vim nws cov cuab yeej yooj yim; tig threads nrog ib tug xov comb cuab tam muaj ntau lawm efficiency, tab sis lub cuab tam qauv yog complex thiab tsuas yog haum rau nruab nrab thiab loj batch ntau lawm. Tig zoo threaded workpieces nrog luv threads. Lub suab raug ntawm cov xov trapezoidal tig nrog cov tshuab dhos zoo tib yam tuaj yeem ncav cuag qib 8 txog 9 (JB 2886-81, tib yam hauv qab no); thaum threads tau ua tiav ntawm lub tshuab dhos tshwj xeeb, kev tsim khoom lossis qhov tseeb tuaj yeem txhim kho tau zoo.
2
Xov milling
Milling yog ua nyob rau hauv ib tug xov milling tshuab nrog ib tug disc los yog zuag cutter. Disc milling cutters yog tsuas yog siv rau milling trapezoidal lwm threads ntawm cov ntsia hlau rods, worms thiab lwm yam workpieces. Lub zuag milling cutter yog siv rau milling sab hauv thiab sab nraud zoo tib yam threads thiab tapered threads. Txij li thaum nws yog milled nrog ib tug multi-edged milling cutter thiab qhov ntev ntawm qhov chaw ua hauj lwm yog ntau tshaj qhov ntev ntawm cov xov yuav tsum tau ua, lub workpiece tsuas yog yuav tsum tau tig 1.25 ~ 1.5 lem mus rau txheej txheem. Ua tiav, tsim tau heev. Lub suab raug ntawm xov milling feem ntau tuaj yeem ncav cuag qib 8 ~ 9. Txoj kev no yog tsim rau batch zus tau tej cov xov ua hauj lwm nrog precision los yog rau ntxhib machining ua ntej sib tsoo.
Xov machining cyclone milling cutter
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3
Xov sib tsoo
Feem ntau yog siv rau kev ua cov precision threads ntawm hardened workpieces ntawm xov grinders.
Xov sib tsoo yog muab faib ua ob hom: ib leeg-kab sib tsoo lub log thiab ntau txoj kab sib tsoo log sib tsoo raws li qhov sib txawv ntawm qhov sib txawv ntawm qhov sib tsoo. Lub suab qhov tseeb uas tuaj yeem ua tiav los ntawm ib kab sib tsoo log yog 5 ~ 6, qhov roughness ntawm qhov chaw yog Ra1.25 ~ 0.08 micron, thiab kev sib tsoo log hnav yog yooj yim dua.
Txoj kev no yog tsim rau kev sib tsoo precision screws, xov gauges, worms, me me ntawm threaded workpieces thiab nyem sib tsoo ntawm precision hobs. Multi-line sib tsoo log sib tsoo yog muab faib ua ob hom: longitudinal sib tsoo thiab plunge sib tsoo. Qhov dav ntawm kev sib tsoo log nyob rau hauv txoj kev sib tsoo longitudinal yog me dua qhov ntev ntawm cov xov hauv av. Lub log sib tsoo tuaj yeem txav mus ntev ib zaug lossis ob peb zaug kom zom cov xov rov qab mus rau qhov kawg loj. Qhov dav ntawm kev sib tsoo lub log nyob rau hauv txoj kev sib tsoo plunge yog ntau tshaj qhov ntev ntawm cov xov yuav hauv av. Lub log sib tsoo txiav rau hauv qhov chaw ntawm lub workpiece radially. Lub workpiece tuaj yeem ua hauv av li ntawm 1.25 lem. Cov khoom tsim tau siab, tab sis qhov tseeb yog me ntsis qis, thiab kev sib tsoo log hnav yog qhov nyuaj dua. Txoj kev sib tsoo plunge yog tsim rau kev tshem tawm cov khoom loj ntawm cov kais dej thiab sib tsoo qee cov xov fastening.
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Xov sib tsoo
Txiv ntseej-hom lossis ntsia hlau-hom xov sib tsoo cov cuab yeej yog ua los ntawm cov ntaub ntawv mos xws li cam khwb cia hlau. Qhov chaw ntawm cov txheej txheem ua tiav ntawm cov khoom ua haujlwm uas muaj qhov yuam kev yog hauv pem hauv ntej thiab thim rov qab los txhim kho lub suab raug. Hardened internal threads kuj feem ntau hauv av kom tshem tawm cov kev hloov pauv thiab txhim kho qhov tseeb.
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Tapping thiab threading
Tapping yog siv ib qho torque los ntsia hlau tus kais rau hauv lub qhov ua ntej hauv qab ntawm lub workpiece los ua cov xov sab hauv.
Threading yog siv tus tuag los txiav cov xov sab nraud ntawm lub bar (los yog yeeb nkab) workpiece. Kev ua tiav ntawm tapping lossis threading yog nyob ntawm qhov tseeb ntawm tus kais dej lossis tuag. Txawm hais tias muaj ntau txoj hauv kev rau kev ua cov xov sab hauv thiab sab nraud, cov xov me me ntawm sab hauv tsuas tuaj yeem ua tiav nrog cov kais dej. Tapping thiab threading yuav ua tau manually, los yog lathes, laum presses, tapping machine thiab threading tshuab yuav siv tau.
Vajtswv zoo li tapping technology
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6
Xov dov
Ib txoj hauv kev ua haujlwm uas siv txoj kev dov tuag rau plastically deform lub workpiece kom tau cov xov. Xov dov feem ntau ua rau ntawm lub tshuab xov dov, xov dov tshuab lossis tshuab dhos tsis siv neeg nruab nrog lub tshuab qhib thiab kaw xov dov taub hau. Nws yog tsim rau huab hwm coj ntau lawm ntawm lwm threads ntawm standard fasteners thiab lwm yam threaded kev twb kev txuas.
Sab nraud txoj kab uas hla ntawm dov threads feem ntau tsis tshaj 25 hli, thiab qhov ntev tsis tshaj 100 hli. Cov xov raug raug mus txog qib 2 (GB 197-63). Qhov txoj kab uas hla ntawm tag nrho cov blanks yog roughly sib npaug zos rau lub pitch txoj kab uas hla ntawm cov xov ua tiav. Rolling feem ntau tsis tuaj yeem ua cov xov sab hauv, tab sis rau cov khoom ua haujlwm softer, grooveless extrusion kais tuaj yeem siv los txias-extrude internal threads (qhov siab tshaj plaws txoj kab uas hla tuaj yeem ncav cuag li 30 hli). Lub hauv paus ntsiab lus ua haujlwm zoo ib yam li tapping. Lub torque yuav tsum tau rau txias extrusion ntawm cov xov sab hauv yog hais txog ob zaug loj li tapping, thiab kev ua tiav thiab nto zoo yog me ntsis siab dua tapping.
Sab nraud xov rolling processing
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Qhov zoo ntawm xov dov
1. Nto roughness yog me dua li ntawm txoj siav, milling thiab sib tsoo;
2. Lub zog thiab hardness ntawm xov nto tom qab dov tuaj yeem txhim kho vim kev ua haujlwm txias txias;
3. Kev siv cov khoom siv yog siab, qhov tsim tau yog ob npaug piv nrog kev txiav, thiab nws yooj yim rau kev paub automation;
4. Lub dov tuag muaj lub neej ntev, tab sis xov dov yuav tsum muaj lub hardness ntawm cov khoom siv ua haujlwm tsis pub tshaj HRC40;
5. Cov kev xav tau ntawm qhov tseeb qhov tseeb yog qhov siab;
6. Lub precision thiab hardness yuav tsum tau ntawm dov pwm kuj siab, thiab nws yog ib qho nyuaj rau tsim pwm;
7. Tsis haum rau dov threads nrog asymmetric profile.
Raws li kev sib txawv dov tuag, xov dov tuaj yeem muab faib ua ob hom: xov dov thiab xov dov.
Xov rolling: Ob lub xov dov daim hlau nrog threaded hniav profiles yog txheej txheem txheeb ze rau ib leeg thiab staggered los ntawm 1/2 suab. Cov phaj zoo li qub yog tsau thiab cov phaj txav tau ua rau cov kab rov tav kab rov tav sib npaug rau cov phaj zoo li qub. Thaum lub workpiece raug xa mus rau ntawm ob daim hlau, lub phaj txav mus thiab rub lub workpiece, ua rau nws nto plastically deform los ua cov xov.
Xov rolling: Muaj peb hom: radial xov dov, tangential xov dov thiab dov taub hau xov dov.
Radial xov dov: 2 (los yog 3) xov dov lub log yog ntsia rau ntawm qhov sib npaug. Lub workpiece yog muab tso rau ntawm kev txhawb nqa ntawm ob lub log, thiab ob lub log tig nyob rau hauv tib txoj kev thiab ntawm qhov ceev tsis tu ncua.
Ib qho ntawm cov rounds kuj ua radial feed motion. Lub workpiece rotates tsav los ntawm dov lub log, thiab saum npoo yog radially extruded rau daim threads. Rau qee cov ntsia hlau uas tsis tas yuav tsum muaj qhov siab, cov txheej txheem zoo sib xws kuj tuaj yeem siv los yob txoj kev.
Tangential xov dov: Kuj hu ua planetary xov dov, cov cuab yeej dov muaj ib lub voj voog nruab nrab ntawm lub voj voog thiab peb daim hlau ruaj ruaj arc-zoo li daim hlau.
Thaum lub sij hawm xov dov, lub workpiece tuaj yeem noj tsis tu ncua, yog li cov khoom tsim tau siab dua li cov xov dov thiab radial xov dov.
Xov dov nrog lub taub hau dov: Nws yog ua los ntawm lub tshuab dhos tsis siv neeg thiab feem ntau yog siv los ua cov xov luv luv ntawm lub workpiece. Lub taub hau dov muaj 3 mus rau 4 lub log sib npaug sib npaug ntawm qhov chaw ntawm lub workpiece.
Thaum lub sij hawm xov dov, lub workpiece tig thiab lub taub hau dov axially dov lub workpiece tawm ntawm cov xov.
