具體參數

拖泵銑齒方法和(he)工藝(yi)過程(cheng)

在普通(tong)臥式銑(xian)(xian)(xian)床上，采用(yong)帶有轉盤的分(fen)度頭(tou)進行(xing)分(fen)度。具體(ti)方法(fa)(fa)是(shi)想將齒(chi)(chi)(chi)(chi)坯固定在分(fen)度頭(tou)上，見 調整分(fen)度頭(tou)傾角(jiao)(jiao)，將分(fen)度頭(tou)扳(ban)起一(yi)個角(jiao)(jiao)度，該角(jiao)(jiao)度等(deng)于錐(zhui)(zhui)齒(chi)(chi)(chi)(chi)輪根(gen)錐(zhui)(zhui)角(jiao)(jiao)δf，用(yong)切痕法(fa)(fa)使銑(xian)(xian)(xian)刀(dao)(dao)廓形 的對(dui)(dui)(dui)稱線對(dui)(dui)(dui)準齒(chi)(chi)(chi)(chi)坯的中(zhong)心，調整切削(xue)深度，以(yi)大端(duan)(duan)為基準，將工作臺(tai)升高(gao)一(yi)個大端(duan)(duan)全齒(chi)(chi)(chi)(chi)高(gao)后(hou)，先銑(xian)(xian)(xian)齒(chi)(chi)(chi)(chi) 槽(cao)的中(zhong)部，由于此(ci)時采用(yong)的直齒(chi)(chi)(chi)(chi)錐(zhui)(zhui)齒(chi)(chi)(chi)(chi)輪成形銑(xian)(xian)(xian)刀(dao)(dao)的厚度是(shi)按照略小于錐(zhui)(zhui)齒(chi)(chi)(chi)(chi)輪小端(duan)(duan)的齒(chi)(chi)(chi)(chi)槽(cao)寬(kuan)度設計的， 所(suo)以(yi)齒(chi)(chi)(chi)(chi)槽(cao)中(zhong)部銑(xian)(xian)(xian)好后(hou)，齒(chi)(chi)(chi)(chi)輪大端(duan)(duan)和兩側面還(huan)有一(yi)定加工余量，因此(ci)，還(huan)要對(dui)(dui)(dui)上述部位進行(xing)加工。

此時(shi)， 將(jiang)分度(du)頭底(di)(di)座在水平面(mian)(mian)旋轉一(yi)個(ge)α角，使銑(xian)刀廓形對稱線和齒坯軸線成一(yi)個(ge)角度(du)，同時(shi)適當移動(dong)橫向(xiang) 工(gong)作(zuo)臺(tai)(移動(dong)量可以通過試(shi)切來確定)，先將(jiang)齒槽一(yi)側(ce)的余量銑(xian)去(qu)，然后再將(jiang)分度(du)頭底(di)(di)座反(fan)向(xiang)旋 轉2α角，橫向(xiang)工(gong)作(zuo)臺(tai)也反(fan)向(xiang)移動(dong)，銑(xian)削齒槽的另一(yi)側(ce)面(mian)(mian)余量。