東莞市(shi)銳鑫機電有限公司
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B棟(dong)401
具體參數
拖泵銑齒方法和工(gong)藝過程
在普通(tong)臥(wo)式銑(xian)(xian)床上,采用帶(dai)有(you)轉盤的分(fen)度(du)(du)頭(tou)進行(xing)分(fen)度(du)(du)。具體方(fang)法是想將齒(chi)(chi)(chi)坯(pi)固定在分(fen)度(du)(du)頭(tou)上,見 調(diao)整分(fen)度(du)(du)頭(tou)傾角,將分(fen)度(du)(du)頭(tou)扳起一個角度(du)(du),該角度(du)(du)等于錐(zhui)齒(chi)(chi)(chi)輪(lun)根(gen)錐(zhui)角δf,用切痕法使銑(xian)(xian)刀(dao)廓形(xing) 的對(dui)稱線(xian)對(dui)準齒(chi)(chi)(chi)坯(pi)的中心,調(diao)整切削深度(du)(du),以大(da)端(duan)為基準,將工作(zuo)臺升高一個大(da)端(duan)全(quan)齒(chi)(chi)(chi)高后,先銑(xian)(xian)齒(chi)(chi)(chi) 槽(cao)的中部,由于此時采用的直齒(chi)(chi)(chi)錐(zhui)齒(chi)(chi)(chi)輪(lun)成形(xing)銑(xian)(xian)刀(dao)的厚度(du)(du)是按照略小于錐(zhui)齒(chi)(chi)(chi)輪(lun)小端(duan)的齒(chi)(chi)(chi)槽(cao)寬度(du)(du)設計的, 所(suo)以齒(chi)(chi)(chi)槽(cao)中部銑(xian)(xian)好后,齒(chi)(chi)(chi)輪(lun)大(da)端(duan)和兩側(ce)面還(huan)有(you)一定加(jia)工余(yu)量(liang),因此,還(huan)要對(dui)上述(shu)部位進行(xing)加(jia)工。
此時(shi), 將(jiang)(jiang)分(fen)度(du)頭底座在水平面旋轉(zhuan)一個α角,使(shi)銑刀廓形對稱線(xian)(xian)和齒(chi)坯軸線(xian)(xian)成一個角度(du),同時(shi)適當移(yi)動(dong)橫向(xiang)(xiang) 工作(zuo)臺(移(yi)動(dong)量(liang)可以(yi)通(tong)過試切來確定),先將(jiang)(jiang)齒(chi)槽一側的余量(liang)銑去(qu),然(ran)后再(zai)將(jiang)(jiang)分(fen)度(du)頭底座反向(xiang)(xiang)旋 轉(zhuan)2α角,橫向(xiang)(xiang)工作(zuo)臺也反向(xiang)(xiang)移(yi)動(dong),銑削(xue)齒(chi)槽的另(ling)一側面余量(liang)。