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B棟401
具體參數
拖(tuo)泵銑齒方法和(he)工藝過(guo)程
在(zai)普通臥式銑床上(shang),采(cai)用(yong)(yong)帶有轉(zhuan)盤的(de)分(fen)(fen)度(du)(du)(du)頭進行分(fen)(fen)度(du)(du)(du)。具體方(fang)法(fa)是想將齒(chi)(chi)(chi)(chi)坯(pi)(pi)固定(ding)在(zai)分(fen)(fen)度(du)(du)(du)頭上(shang),見 調(diao)整(zheng)分(fen)(fen)度(du)(du)(du)頭傾角(jiao),將分(fen)(fen)度(du)(du)(du)頭扳起一(yi)個(ge)角(jiao)度(du)(du)(du),該角(jiao)度(du)(du)(du)等于錐齒(chi)(chi)(chi)(chi)輪(lun)根錐角(jiao)δf,用(yong)(yong)切痕法(fa)使銑刀廓(kuo)形(xing) 的(de)對稱線對準(zhun)齒(chi)(chi)(chi)(chi)坯(pi)(pi)的(de)中(zhong)(zhong)(zhong)心,調(diao)整(zheng)切削深度(du)(du)(du),以(yi)大端(duan)(duan)為基準(zhun),將工(gong)作臺升高(gao)一(yi)個(ge)大端(duan)(duan)全齒(chi)(chi)(chi)(chi)高(gao)后,先銑齒(chi)(chi)(chi)(chi) 槽(cao)的(de)中(zhong)(zhong)(zhong)部(bu),由于此時采(cai)用(yong)(yong)的(de)直齒(chi)(chi)(chi)(chi)錐齒(chi)(chi)(chi)(chi)輪(lun)成形(xing)銑刀的(de)厚度(du)(du)(du)是按(an)照略小于錐齒(chi)(chi)(chi)(chi)輪(lun)小端(duan)(duan)的(de)齒(chi)(chi)(chi)(chi)槽(cao)寬度(du)(du)(du)設(she)計的(de), 所以(yi)齒(chi)(chi)(chi)(chi)槽(cao)中(zhong)(zhong)(zhong)部(bu)銑好后,齒(chi)(chi)(chi)(chi)輪(lun)大端(duan)(duan)和兩側面(mian)還有一(yi)定(ding)加工(gong)余量(liang),因(yin)此,還要(yao)對上(shang)述部(bu)位(wei)進行加工(gong)。
此時, 將分度頭(tou)底座(zuo)(zuo)在(zai)水(shui)平面(mian)旋(xuan)轉一個α角(jiao)(jiao),使銑(xian)刀廓形(xing)對稱線和齒坯軸線成一個角(jiao)(jiao)度,同(tong)時適(shi)當移動橫向 工作(zuo)臺(tai)(移動量可(ke)以通過試切來確定),先將齒槽一側的(de)余量銑(xian)去,然后再將分度頭(tou)底座(zuo)(zuo)反(fan)(fan)向旋(xuan) 轉2α角(jiao)(jiao),橫向工作(zuo)臺(tai)也反(fan)(fan)向移動,銑(xian)削(xue)齒槽的(de)另一側面(mian)余量。