東(dong)莞市銳鑫機電有限公司(si)
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B棟401
具體參數
拖泵銑(xian)齒方法和工(gong)藝過程
在普(pu)通(tong)臥(wo)式(shi)銑床上,采(cai)(cai)用(yong)帶有轉盤的(de)分(fen)度(du)(du)(du)頭(tou)(tou)進(jin)行(xing)分(fen)度(du)(du)(du)。具體(ti)方(fang)法是想將(jiang)齒坯固定(ding)在分(fen)度(du)(du)(du)頭(tou)(tou)上,見 調整(zheng)分(fen)度(du)(du)(du)頭(tou)(tou)傾角,將(jiang)分(fen)度(du)(du)(du)頭(tou)(tou)扳起(qi)一個(ge)角度(du)(du)(du),該角度(du)(du)(du)等于錐(zhui)(zhui)齒輪(lun)根錐(zhui)(zhui)角δf,用(yong)切(qie)痕(hen)法使銑刀(dao)廓(kuo)形(xing) 的(de)對稱線對準(zhun)齒坯的(de)中(zhong)心,調整(zheng)切(qie)削(xue)深度(du)(du)(du),以大端(duan)為基準(zhun),將(jiang)工作臺(tai)升高一個(ge)大端(duan)全齒高后(hou),先銑齒 槽的(de)中(zhong)部,由(you)于此時采(cai)(cai)用(yong)的(de)直(zhi)齒錐(zhui)(zhui)齒輪(lun)成形(xing)銑刀(dao)的(de)厚度(du)(du)(du)是按(an)照(zhao)略小于錐(zhui)(zhui)齒輪(lun)小端(duan)的(de)齒槽寬度(du)(du)(du)設計的(de), 所以齒槽中(zhong)部銑好后(hou),齒輪(lun)大端(duan)和兩(liang)側面還(huan)(huan)有一定(ding)加工余量,因此,還(huan)(huan)要對上述(shu)部位進(jin)行(xing)加工。
此時, 將分度頭底座在水平面旋轉一個α角(jiao),使(shi)銑(xian)刀廓形對稱(cheng)線(xian)和(he)齒坯(pi)軸線(xian)成一個角(jiao)度,同時適當移(yi)(yi)動橫(heng)(heng)向 工(gong)(gong)作臺(tai)(移(yi)(yi)動量可以通過試(shi)切來確定),先將齒槽一側(ce)的余(yu)量銑(xian)去,然后再將分度頭底座反(fan)向旋 轉2α角(jiao),橫(heng)(heng)向工(gong)(gong)作臺(tai)也反(fan)向移(yi)(yi)動,銑(xian)削齒槽的另一側(ce)面余(yu)量。