具體參數

拖泵(beng)銑齒方法和工藝過程

在(zai)普通臥式銑床上(shang)，采用(yong)(yong)帶有轉盤的(de)分度(du)(du)頭(tou)進行分度(du)(du)。具體方法是(shi)想將齒(chi)(chi)(chi)坯(pi)(pi)固定在(zai)分度(du)(du)頭(tou)上(shang)，見 調整(zheng)分度(du)(du)頭(tou)傾角，將分度(du)(du)頭(tou)扳起一個(ge)角度(du)(du)，該(gai)角度(du)(du)等于錐齒(chi)(chi)(chi)輪(lun)根錐角δf，用(yong)(yong)切(qie)痕法使銑刀廓形 的(de)對稱線對準(zhun)齒(chi)(chi)(chi)坯(pi)(pi)的(de)中(zhong)心，調整(zheng)切(qie)削深(shen)度(du)(du)，以大(da)端(duan)為基(ji)準(zhun)，將工(gong)(gong)作臺升高(gao)一個(ge)大(da)端(duan)全齒(chi)(chi)(chi)高(gao)后(hou)，先銑齒(chi)(chi)(chi) 槽(cao)的(de)中(zhong)部(bu)，由于此(ci)時采用(yong)(yong)的(de)直齒(chi)(chi)(chi)錐齒(chi)(chi)(chi)輪(lun)成形銑刀的(de)厚度(du)(du)是(shi)按照略(lve)小于錐齒(chi)(chi)(chi)輪(lun)小端(duan)的(de)齒(chi)(chi)(chi)槽(cao)寬度(du)(du)設(she)計的(de)， 所以齒(chi)(chi)(chi)槽(cao)中(zhong)部(bu)銑好后(hou)，齒(chi)(chi)(chi)輪(lun)大(da)端(duan)和兩側面還有一定加工(gong)(gong)余(yu)量，因此(ci)，還要對上(shang)述部(bu)位進行加工(gong)(gong)。

此(ci)時， 將(jiang)分度頭底座在水平面(mian)旋轉(zhuan)一個(ge)α角，使銑(xian)刀廓形對稱線(xian)和齒坯軸線(xian)成一個(ge)角度，同時適(shi)當移動(dong)橫向(xiang)(xiang) 工(gong)作(zuo)臺(移動(dong)量可(ke)以通過試切來確定(ding))，先(xian)將(jiang)齒槽一側的余量銑(xian)去，然(ran)后再將(jiang)分度頭底座反向(xiang)(xiang)旋 轉(zhuan)2α角，橫向(xiang)(xiang)工(gong)作(zuo)臺也(ye)反向(xiang)(xiang)移動(dong)，銑(xian)削齒槽的另一側面(mian)余量。