具體參數

拖泵銑齒方法和工藝過程(cheng)

在普通臥式銑(xian)(xian)(xian)床上(shang)，采(cai)(cai)用帶有(you)轉盤的(de)(de)(de)分(fen)(fen)度(du)(du)(du)頭(tou)進行分(fen)(fen)度(du)(du)(du)。具體(ti)方法是想將(jiang)(jiang)齒(chi)(chi)(chi)(chi)坯固定(ding)在分(fen)(fen)度(du)(du)(du)頭(tou)上(shang)，見 調(diao)(diao)整(zheng)(zheng)分(fen)(fen)度(du)(du)(du)頭(tou)傾角(jiao)，將(jiang)(jiang)分(fen)(fen)度(du)(du)(du)頭(tou)扳起一個角(jiao)度(du)(du)(du)，該(gai)角(jiao)度(du)(du)(du)等于(yu)錐(zhui)齒(chi)(chi)(chi)(chi)輪(lun)根錐(zhui)角(jiao)δf，用切痕法使銑(xian)(xian)(xian)刀廓形(xing)(xing) 的(de)(de)(de)對稱線對準齒(chi)(chi)(chi)(chi)坯的(de)(de)(de)中(zhong)心，調(diao)(diao)整(zheng)(zheng)切削深度(du)(du)(du)，以大端(duan)(duan)為(wei)基準，將(jiang)(jiang)工(gong)作臺升高一個大端(duan)(duan)全(quan)齒(chi)(chi)(chi)(chi)高后，先銑(xian)(xian)(xian)齒(chi)(chi)(chi)(chi) 槽的(de)(de)(de)中(zhong)部，由(you)于(yu)此時采(cai)(cai)用的(de)(de)(de)直齒(chi)(chi)(chi)(chi)錐(zhui)齒(chi)(chi)(chi)(chi)輪(lun)成形(xing)(xing)銑(xian)(xian)(xian)刀的(de)(de)(de)厚度(du)(du)(du)是按(an)照略小(xiao)于(yu)錐(zhui)齒(chi)(chi)(chi)(chi)輪(lun)小(xiao)端(duan)(duan)的(de)(de)(de)齒(chi)(chi)(chi)(chi)槽寬(kuan)度(du)(du)(du)設計(ji)的(de)(de)(de)， 所以齒(chi)(chi)(chi)(chi)槽中(zhong)部銑(xian)(xian)(xian)好后，齒(chi)(chi)(chi)(chi)輪(lun)大端(duan)(duan)和兩側面(mian)還(huan)有(you)一定(ding)加工(gong)余量(liang)，因此，還(huan)要對上(shang)述部位進行加工(gong)。

此時， 將(jiang)分度(du)頭底座(zuo)在水平面(mian)旋轉(zhuan)一(yi)(yi)(yi)個α角(jiao)(jiao)，使銑(xian)(xian)刀(dao)廓形對稱線(xian)和齒(chi)坯軸(zhou)線(xian)成(cheng)一(yi)(yi)(yi)個角(jiao)(jiao)度(du)，同時適當移(yi)動(dong)橫向(xiang)(xiang) 工作(zuo)臺(移(yi)動(dong)量可(ke)以(yi)通(tong)過試切來確(que)定)，先(xian)將(jiang)齒(chi)槽一(yi)(yi)(yi)側的余量銑(xian)(xian)去，然后再將(jiang)分度(du)頭底座(zuo)反向(xiang)(xiang)旋 轉(zhuan)2α角(jiao)(jiao)，橫向(xiang)(xiang)工作(zuo)臺也反向(xiang)(xiang)移(yi)動(dong)，銑(xian)(xian)削(xue)齒(chi)槽的另(ling)一(yi)(yi)(yi)側面(mian)余量。