東莞市銳鑫機電有限(xian)公司
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B棟401
具體參數
拖泵銑齒方(fang)法和工(gong)藝過(guo)程
在普通(tong)臥式銑(xian)床上,采用帶有轉盤的分度(du)(du)頭(tou)(tou)進(jin)行分度(du)(du)。具(ju)體(ti)方法(fa)是(shi)想(xiang)將(jiang)齒(chi)(chi)(chi)(chi)坯固定(ding)在分度(du)(du)頭(tou)(tou)上,見 調(diao)整分度(du)(du)頭(tou)(tou)傾角(jiao)(jiao),將(jiang)分度(du)(du)頭(tou)(tou)扳(ban)起一(yi)個角(jiao)(jiao)度(du)(du),該角(jiao)(jiao)度(du)(du)等于(yu)(yu)錐(zhui)齒(chi)(chi)(chi)(chi)輪(lun)根(gen)錐(zhui)角(jiao)(jiao)δf,用切(qie)痕法(fa)使銑(xian)刀(dao)(dao)廓形 的對稱線(xian)對準(zhun)(zhun)齒(chi)(chi)(chi)(chi)坯的中心,調(diao)整切(qie)削深度(du)(du),以大(da)端(duan)為基準(zhun)(zhun),將(jiang)工(gong)作臺升(sheng)高一(yi)個大(da)端(duan)全齒(chi)(chi)(chi)(chi)高后,先銑(xian)齒(chi)(chi)(chi)(chi) 槽(cao)的中部(bu),由于(yu)(yu)此(ci)時采用的直齒(chi)(chi)(chi)(chi)錐(zhui)齒(chi)(chi)(chi)(chi)輪(lun)成形銑(xian)刀(dao)(dao)的厚度(du)(du)是(shi)按照(zhao)略小于(yu)(yu)錐(zhui)齒(chi)(chi)(chi)(chi)輪(lun)小端(duan)的齒(chi)(chi)(chi)(chi)槽(cao)寬度(du)(du)設計的, 所(suo)以齒(chi)(chi)(chi)(chi)槽(cao)中部(bu)銑(xian)好(hao)后,齒(chi)(chi)(chi)(chi)輪(lun)大(da)端(duan)和兩(liang)側面還有一(yi)定(ding)加工(gong)余量(liang),因此(ci),還要對上述部(bu)位(wei)進(jin)行加工(gong)。
此時, 將(jiang)分(fen)度頭底座在水(shui)平(ping)面旋轉一(yi)個α角,使銑(xian)刀(dao)廓形(xing)對稱線和齒(chi)(chi)坯(pi)軸(zhou)線成一(yi)個角度,同(tong)時適當(dang)移(yi)動(dong)橫向(xiang) 工作臺(移(yi)動(dong)量可以(yi)通過試(shi)切(qie)來確定),先將(jiang)齒(chi)(chi)槽(cao)一(yi)側(ce)的余(yu)量銑(xian)去,然(ran)后再將(jiang)分(fen)度頭底座反向(xiang)旋 轉2α角,橫向(xiang)工作臺也反向(xiang)移(yi)動(dong),銑(xian)削(xue)齒(chi)(chi)槽(cao)的另(ling)一(yi)側(ce)面余(yu)量。