在電動機生產中，電機軸加工通常需要先鉆兩個中心孔，用普通車床上的卡盤將軸擰緊，一端鉆中心孔后轉動頭部，另一端鉆中心孔。一個電機軸兩端的中心孔需要夾緊兩次，既費力又費時。下面是一個操作簡單且容易操作的專用中心鉆具。采用這種鉆具，只需用手握住電機軸即可制造，比原方法效率高幾倍，降低了勞動強度。中心鉆夾頭安裝在機床主軸的錐孔中，中心鉆夾頭的另一端與夾緊中心鉆的孔一起鉆孔。五金件加工廠(chang)家中(zhong)(zhong)(zhong)(zhong)心鉆(zhan)頭(tou)用一(yi)個平臺安(an)裝在(zai)中(zhong)(zhong)(zhong)(zhong)心卡盤(pan)的(de)(de)一(yi)端，這(zhe)樣在(zai)擰進頂部鋼絲后(hou)就可(ke)以緊固(gu)。錐體(ti)套在(zai)尾座錐孔中(zhong)(zhong)(zhong)(zhong)。錐形套筒錐度(du)(du)(du)和錐形滑(hua)動(dong)套筒的(de)(de)錐度(du)(du)(du)應(ying)根(gen)據(ju)加(jia)工電(dian)機軸的(de)(de)尺(chi)寸來確定，一(yi)般(ban)在(zai)30度(du)(du)(du)到45度(du)(du)(du)的(de)(de)范圍(wei)內。可(ke)防止錐體(ti)滑(hua)動(dong)套滑(hua)出，并可(ke)控(kong)制中(zhong)(zhong)(zhong)(zhong)心孔的(de)(de)深度(du)(du)(du)。鉆(zhan)頭(tou)上(shang)設有定位(wei)螺釘(ding)。可(ke)通過在(zai)工具(ju)架(jia)上(shang)夾緊方形鐵(tie)并搖動(dong)鉆(zhan)頭(tou)使其處(chu)于(yu)中(zhong)(zhong)(zhong)(zhong)心鉆(zhan)夾頭(tou)的(de)(de)適當位(wei)置(zhi)來制造鉆(zhan)頭(tou)。然后(hou)，校準鉆(zhan)具(ju)本體(ti)的(de)(de)中(zhong)(zhong)(zhong)(zhong)心并將其夾緊在(zai)刀架(jia)上(shang)。

　　異形軸在(zai)加(jia)工過程(cheng)中(zhong)(zhong)(zhong)(zhong)，首先啟動(dong)機床，然后將工件放入錐(zhui)形(xing)滑動(dong)套筒(tong)中(zhong)(zhong)(zhong)(zhong)，搖動(dong)尾(wei)座手輪，使錐(zhui)形(xing)套筒(tong)壓(ya)緊工件，并向(xiang)中(zhong)(zhong)(zhong)(zhong)心(xin)鉆(zhan)孔(kong)方(fang)向(xiang)（進給(gei)）移動(dong)，鉆(zhan)出中(zhong)(zhong)(zhong)(zhong)心(xin)孔(kong)。鉆(zhan)過中(zhong)(zhong)(zhong)(zhong)心(xin)孔(kong)后，將尾(wei)座和(he)圓(yuan)錐(zhui)套筒(tong)回滾到原來(lai)的(de)(de)位置，調整(zheng)另一端的(de)(de)中(zhong)(zhong)(zhong)(zhong)心(xin)孔(kong)。為(wei)了提高中(zhong)(zhong)(zhong)(zhong)心(xin)孔(kong)的(de)(de)光潔度和(he)中(zhong)(zhong)(zhong)(zhong)心(xin)鉆(zhan)的(de)(de)耐用性，可將冷卻液注入錐(zhui)形(xing)滑套的(de)(de)圓(yuan)孔(kong)和(he)長槽中(zhong)(zhong)(zhong)(zhong)。這種鉆(zhan)具(ju)(ju)具(ju)(ju)有制造容(rong)易(yi)、操作簡單、推廣方(fang)便等特點。

    大家學(xue)會(hui)了(le)電機軸(zhou)加工(gong)的鉆(zhan)具(ju)了(le)嗎？知道在加工(gong)的時(shi)候(hou)該使用什么(me)樣的鉆(zhan)具(ju)了(le)嗎？希望勤創的