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B棟(dong)401
具體參數
拖泵銑齒(chi)方法和(he)工藝過(guo)程(cheng)
在普通臥式(shi)銑(xian)(xian)床上,采(cai)用帶(dai)有轉盤的(de)(de)分(fen)(fen)度(du)(du)(du)(du)頭(tou)進行(xing)分(fen)(fen)度(du)(du)(du)(du)。具體方(fang)法(fa)是(shi)想將齒(chi)(chi)(chi)坯(pi)固定在分(fen)(fen)度(du)(du)(du)(du)頭(tou)上,見 調整(zheng)分(fen)(fen)度(du)(du)(du)(du)頭(tou)傾角(jiao)(jiao),將分(fen)(fen)度(du)(du)(du)(du)頭(tou)扳起一個(ge)角(jiao)(jiao)度(du)(du)(du)(du),該角(jiao)(jiao)度(du)(du)(du)(du)等于(yu)(yu)錐齒(chi)(chi)(chi)輪(lun)根(gen)錐角(jiao)(jiao)δf,用切痕(hen)法(fa)使銑(xian)(xian)刀廓形 的(de)(de)對稱線對準(zhun)齒(chi)(chi)(chi)坯(pi)的(de)(de)中(zhong)心,調整(zheng)切削深度(du)(du)(du)(du),以(yi)大端(duan)為基準(zhun),將工(gong)作臺(tai)升高(gao)一個(ge)大端(duan)全(quan)齒(chi)(chi)(chi)高(gao)后(hou),先銑(xian)(xian)齒(chi)(chi)(chi) 槽的(de)(de)中(zhong)部(bu),由(you)于(yu)(yu)此時采(cai)用的(de)(de)直齒(chi)(chi)(chi)錐齒(chi)(chi)(chi)輪(lun)成形銑(xian)(xian)刀的(de)(de)厚(hou)度(du)(du)(du)(du)是(shi)按照(zhao)略小(xiao)于(yu)(yu)錐齒(chi)(chi)(chi)輪(lun)小(xiao)端(duan)的(de)(de)齒(chi)(chi)(chi)槽寬度(du)(du)(du)(du)設計的(de)(de), 所以(yi)齒(chi)(chi)(chi)槽中(zhong)部(bu)銑(xian)(xian)好后(hou),齒(chi)(chi)(chi)輪(lun)大端(duan)和兩側面還(huan)有一定加(jia)工(gong)余量,因此,還(huan)要對上述部(bu)位進行(xing)加(jia)工(gong)。
此時, 將分度頭(tou)底座在水平面旋轉一(yi)個α角(jiao),使銑(xian)(xian)刀廓(kuo)形(xing)對稱線和齒坯軸(zhou)線成一(yi)個角(jiao)度,同時適當移(yi)(yi)(yi)動(dong)(dong)橫(heng)向 工(gong)作臺(移(yi)(yi)(yi)動(dong)(dong)量可以(yi)通過(guo)試切來(lai)確定),先將齒槽(cao)一(yi)側(ce)的余量銑(xian)(xian)去,然后再(zai)將分度頭(tou)底座反向旋 轉2α角(jiao),橫(heng)向工(gong)作臺也反向移(yi)(yi)(yi)動(dong)(dong),銑(xian)(xian)削齒槽(cao)的另一(yi)側(ce)面余量。