Lub tshuab txiav yoov yog cov cuab yeej txiav uas txuas ib qho (lossis ntau dua) txiav cov npoo ntawm lub cuab yeej los hloov cov hniav ntawm tus cab iav hob; qhov tseem ceeb, nws yog ib qho - cov hniav cab iav hob.
Raws li cov kev taw qhia mounting thiab cov hniav profile ntawm cov npoo txiav, lawv feem ntau yog cais rau hauv Archimedes worm iav fly cutters, staggered -tooth helical-groove worm gear fly cutters, ib txwm ncaj-profile worm iav fly cutters, thiab toroidal worm gear fly cutters Lub Archimedes worm iav ya cutter muaj ncaj- cov hniav profiles, nrog ib tug hniav profile kaum sib npaug zos rau axial hniav profile kaum sab xis ntawm tus cab yooj yim, thiab nws lub ntsej muag rake yog mounted rau lub dav hlau axial ntawm lub cuab yeej. Lub staggered -tooth helical-groove worm iav fly cutter siv ib tug staggered-tooth helical-groove qauv, nrog zoo ua hauj lwm rake kaum ob sab, kev txhim kho tam sim ntawd hloov nyob rau hauv tej yam load thiab txhim kho tej stability. Qhov ib txwm ncaj-profile worm iav fly cutter yog hais txog lub cutter uas nws ncaj-profile hniav rake lub ntsej muag yog mounted nyob rau hauv ib txwm dav hlau ntawm tus cab yooj yim, haum rau machining ZN- hom cab iav. Lub toroidal worm iav fly cutter yog ib qho yooj yim txiav cov cuab yeej rau toroidal worm gears, nrog rau ntau yam qauv, xws li ob-cov hniav ya cutters thiab multi- hniav ya cutters, ntawm cov uas multi- hniav ya cutters muab ntau dua machining raug tab sis muaj ib tug complex qauv.
Ib tug rub- tus pin hom cuab yeej tuav qauv tsis tsuas yog kho cov yoov cutter txiav ntug rau lub cuab yeej, tab sis kuj tso cai rau kev hloov ntawm fly cutter lub qaij lub kaum sab xis.
Cov cuab yeej ua haujlwm tseem ceeb yog lub iav hobbing tshuab nrog cov cuab yeej tangential. Thaum lub sij hawm txiav iav, ntxiv rau qhov hobbing rotation ntawm fly cutter thiab workpiece, lub fly cutter kuj ua ib tug tangential feed motion kom tas mus li tsim cov hniav profile. Cov kab cab kuj tuaj yeem ua rau ntawm lub tshuab milling siv lub tshuab txiav ya, tab sis qhov tseeb machining qis dua.
