1.Kusankha kwa odula mphero nthawi zambiri kumaganizira zinthu zotsatirazi zomwe mungasankhe:
(1) Gawo la mawonekedwe (poganizira za processing profile): Mbiri yokonza nthawi zambiri imakhala yosalala, yakuya, yamkati, ulusi, ndi zina zotero. Zida zomwe zimagwiritsidwa ntchito pazinthu zosiyana siyana ndizosiyana. Mwachitsanzo, chodulira mphero chimatha kugaya malo owoneka bwino, koma osati malo opindika.
(2) Zofunika: Ganizirani machinability ake, chip kupanga, kulimba ndi alloying zinthu. Opanga zida nthawi zambiri amagawa zinthu kukhala zitsulo, zitsulo zosapanga dzimbiri, chitsulo chosapanga dzimbiri, zitsulo zopanda chitsulo, ma aloyi apamwamba, ma aloyi a titaniyamu ndi zida zolimba.
(3) Machining mikhalidwe: Machining mikhalidwe monga kukhazikika kwa workpiece dongosolo la makina chida fixture, clamping mkhalidwe wa chofukizira chida ndi zina zotero.
(4) Kukhazikika kwa dongosolo la makina opangira makina: Izi zimafuna kumvetsetsa mphamvu yomwe ilipo ya chida cha makina, mtundu wa spindle ndi mafotokozedwe, zaka za chida cha makina, ndi zina zotero, komanso kutalika kwa chogwiritsira ntchito ndi axial / Radial runout Situation.
(5) Gulu lokonzekera ndi gawo laling'ono: Izi zikuphatikiza mphero ya mapewa, mphero ya ndege, mphero yambiri, ndi zina zambiri, zomwe ziyenera kuphatikizidwa ndi mawonekedwe a chida chosankha chida.
2. Kusankhidwa kwa ngodya ya geometric ya wodula mphero
(1) Kusankha kolowera kutsogolo. Mlingo wa chodula mphero uyenera kutsimikiziridwa molingana ndi zida za chida ndi chogwirira ntchito. Nthawi zambiri pamakhala zovuta pa mphero, kotero ndikofunikira kuwonetsetsa kuti m'mphepete mwake muli ndi mphamvu zambiri. Nthawi zambiri, ngodya ya chodulira mphero ndi yaying'ono kuposa mbali yodulira ya chida chotembenuza; chitsulo chothamanga kwambiri ndi chachikulu kuposa chida chopangidwa ndi simenti; Komanso, pamene mphero zipangizo pulasitiki, chifukwa chachikulu kudula mapindikidwe, lalikulu angatenge ngodya ayenera kugwiritsidwa ntchito; pamene mphero Chimaona zipangizo , The angatenge ngodya ayenera kukhala ang'onoang'ono; pokonza zinthu zokhala ndi mphamvu zambiri komanso kuuma, ngodya yoyipa ingagwiritsidwenso ntchito.
(2) Kusankha kupendekera kwa tsamba. Mphero ya helix β ya kunja kwa mphero yomaliza ndi cylindrical milling cutter ndi blade inclination λ s. Zimenezi zimathandiza kuti mano odulawo adutse pang’onopang’ono mkati ndi kunja kwa chogwiriracho, kumapangitsa kuti mphero ikhale yosalala. Kuchulukitsa β kumatha kukulitsa ngodya yeniyeni, kukulitsa mphepete, ndikupangitsa tchipisi kukhala zosavuta kutulutsa. Kwa ocheka mphero okhala ndi m'lifupi mwake, kukulitsa ngodya ya helix β sikufunikira kwenikweni, kotero β=0 kapena mtengo wocheperako nthawi zambiri umatengedwa.
(3) Kusankhidwa kwa ngodya yayikulu yokhotakhota ndi mbali yachiwiri yokhotakhota. Zotsatira za kulowera kolowera kwa chodulira mphero ndi chikoka chake pa mphero ndizofanana ndi zomwe zimalowetsamo chida chotembenuza potembenuza. Makona olowera omwe amagwiritsidwa ntchito kwambiri ndi 45°, 60°, 75°, ndi 90°. Kukhazikika kwa dongosolo la ndondomekoyi ndikwabwino, ndipo mtengo wocheperako umagwiritsidwa ntchito; apo ayi, mtengo wokulirapo umagwiritsidwa ntchito, ndipo kusankha kolowera kumawonetsedwa mu Table 4-3. Mbali yachiwiri yokhotakhota nthawi zambiri imakhala 5°～10°. Wodula mphero wa cylindrical ali ndi malire akulu okha ndipo alibe m'mphepete mwachiwiri, kotero palibe ngodya yachiwiri yokhotakhota, ndipo mbali yolowera ndi 90 °.
Nthawi yotumiza: Apr-17-2018
