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B棟401
具體參數
拖泵銑齒(chi)方法和工藝(yi)過程(cheng)
在(zai)普通(tong)臥式銑(xian)床上(shang),采用(yong)帶有(you)轉(zhuan)盤的(de)分(fen)度(du)(du)(du)(du)(du)頭進(jin)行(xing)分(fen)度(du)(du)(du)(du)(du)。具體方法(fa)是(shi)想將齒(chi)(chi)坯(pi)固定在(zai)分(fen)度(du)(du)(du)(du)(du)頭上(shang),見 調(diao)整(zheng)(zheng)分(fen)度(du)(du)(du)(du)(du)頭傾(qing)角(jiao),將分(fen)度(du)(du)(du)(du)(du)頭扳(ban)起(qi)一(yi)(yi)個角(jiao)度(du)(du)(du)(du)(du),該(gai)角(jiao)度(du)(du)(du)(du)(du)等于錐齒(chi)(chi)輪(lun)根錐角(jiao)δf,用(yong)切(qie)痕法(fa)使(shi)銑(xian)刀(dao)廓形 的(de)對(dui)稱線對(dui)準(zhun)齒(chi)(chi)坯(pi)的(de)中(zhong)(zhong)(zhong)心,調(diao)整(zheng)(zheng)切(qie)削深度(du)(du)(du)(du)(du),以(yi)(yi)大(da)(da)(da)端為基準(zhun),將工作臺升(sheng)高(gao)一(yi)(yi)個大(da)(da)(da)端全(quan)齒(chi)(chi)高(gao)后,先銑(xian)齒(chi)(chi) 槽的(de)中(zhong)(zhong)(zhong)部,由(you)于此時(shi)采用(yong)的(de)直齒(chi)(chi)錐齒(chi)(chi)輪(lun)成形銑(xian)刀(dao)的(de)厚度(du)(du)(du)(du)(du)是(shi)按照略小(xiao)(xiao)于錐齒(chi)(chi)輪(lun)小(xiao)(xiao)端的(de)齒(chi)(chi)槽寬度(du)(du)(du)(du)(du)設計的(de), 所(suo)以(yi)(yi)齒(chi)(chi)槽中(zhong)(zhong)(zhong)部銑(xian)好后,齒(chi)(chi)輪(lun)大(da)(da)(da)端和兩側面還有(you)一(yi)(yi)定加(jia)工余量,因此,還要對(dui)上(shang)述部位進(jin)行(xing)加(jia)工。
此(ci)時, 將分度頭底座在水平(ping)面旋(xuan)轉一(yi)個α角,使銑刀廓形對稱線(xian)和齒(chi)坯軸線(xian)成一(yi)個角度,同時適當(dang)移動橫(heng)向(xiang) 工作臺(移動量可以通過(guo)試切(qie)來確定),先(xian)將齒(chi)槽(cao)一(yi)側的(de)余(yu)量銑去,然后(hou)再將分度頭底座反向(xiang)旋(xuan) 轉2α角,橫(heng)向(xiang)工作臺也反向(xiang)移動,銑削齒(chi)槽(cao)的(de)另一(yi)側面余(yu)量。