搖臂鉆床也可以稱為搖臂鉆，主軸箱可(ke)(ke)在搖(yao)(yao)(yao)臂(bei)上(shang)左右移(yi)動(dong)，并隨搖(yao)(yao)(yao)臂(bei)繞立柱(zhu)反轉(zhuan)±180°的(de)(de)鉆(zhan)床(chuang)(chuang)(chuang)(chuang)。搖(yao)(yao)(yao)臂(bei)還可(ke)(ke)沿外(wai)柱(zhu)上(shang)下升降，以習慣加(jia)(jia)(jia)工(gong)(gong)不(bu)同高(gao)度的(de)(de)工(gong)(gong)件(jian)(jian)(jian)(jian)。較小(xiao)的(de)(de)工(gong)(gong)件(jian)(jian)(jian)(jian)可(ke)(ke)設備在作(zuo)業臺上(shang)，較大的(de)(de)工(gong)(gong)件(jian)(jian)(jian)(jian)可(ke)(ke)直(zhi)接放在機床(chuang)(chuang)(chuang)(chuang)底座(zuo)或地(di)面(mian)上(shang)。搖(yao)(yao)(yao)臂(bei)鉆(zhan)床(chuang)(chuang)(chuang)(chuang)廣泛應用于單件(jian)(jian)(jian)(jian)和(he)中小(xiao)批生產中，加(jia)(jia)(jia)工(gong)(gong)體積和(he)分量較大的(de)(de)工(gong)(gong)件(jian)(jian)(jian)(jian)的(de)(de)孔(kong)。搖(yao)(yao)(yao)臂(bei)鉆(zhan)床(chuang)(chuang)(chuang)(chuang)加(jia)(jia)(jia)工(gong)(gong)規劃廣，可(ke)(ke)用來(lai)鉆(zhan)削大型(xing)工(gong)(gong)件(jian)(jian)(jian)(jian)的(de)(de)各種(zhong)螺釘孔(kong)、螺紋底孔(kong)和(he)油孔(kong)等。搖(yao)(yao)(yao)臂(bei)鉆(zhan)床(chuang)(chuang)(chuang)(chuang)的(de)(de)主要(yao)變型(xing)有(you)滑(hua)座(zuo)式和(he)萬(wan)向(xiang)式兩種(zhong)。滑(hua)座(zuo)式搖(yao)(yao)(yao)臂(bei)鉆(zhan)床(chuang)(chuang)(chuang)(chuang)是將基型(xing)搖(yao)(yao)(yao)臂(bei)鉆(zhan)床(chuang)(chuang)(chuang)(chuang)的(de)(de)底座(zuo)改成滑(hua)座(zuo)而(er)成，滑(hua)座(zuo)可(ke)(ke)沿床(chuang)(chuang)(chuang)(chuang)身導軌移(yi)動(dong)，以擴展加(jia)(jia)(jia)工(gong)(gong)規劃，適用于鍋爐、橋梁、機車(che)車(che)輛和(he)造(zao)船，機械加(jia)(jia)(jia)工(gong)(gong)，等行業。萬(wan)向(xiang)搖(yao)(yao)(yao)臂(bei)鉆(zhan)床(chuang)(chuang)(chuang)(chuang)的(de)(de)搖(yao)(yao)(yao)臂(bei)除可(ke)(ke)作(zuo)垂直(zhi)和(he)反轉(zhuan)運動(dong)外(wai)，并可(ke)(ke)作(zuo)水平移(yi)動(dong)，主軸箱可(ke)(ke)在搖(yao)(yao)(yao)臂(bei)上(shang)作(zuo)歪(wai)斜調(diao)整(zheng)，以習慣工(gong)(gong)件(jian)(jian)(jian)(jian)各部位的(de)(de)加(jia)(jia)(jia)工(gong)(gong)。

搖(yao)(yao)(yao)臂(bei)鉆床主(zhu)(zhu)(zhu)要由(you)底座、內立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)、外(wai)(wai)(wai)立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)、搖(yao)(yao)(yao)臂(bei)、主(zhu)(zhu)(zhu)軸(zhou)(zhou)箱(xiang)及作(zuo)業臺(tai)等部分(fen)組成(cheng)。內立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)固(gu)定(ding)(ding)在(zai)(zai)底座的(de)一(yi)端，在(zai)(zai)它的(de)外(wai)(wai)(wai)面套有外(wai)(wai)(wai)立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)，外(wai)(wai)(wai)立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)可繞(rao)(rao)內立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)反轉(zhuan)(zhuan)360度。搖(yao)(yao)(yao)臂(bei)的(de)一(yi)端為(wei)套筒，它套裝在(zai)(zai)外(wai)(wai)(wai)立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)做上(shang)下移動(dong)(dong)。因為(wei)絲桿與外(wai)(wai)(wai)立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)連(lian)成(cheng)一(yi)體，而升降(jiang)螺母固(gu)定(ding)(ding)在(zai)(zai)搖(yao)(yao)(yao)臂(bei)上(shang)，因而搖(yao)(yao)(yao)臂(bei)不(bu)能繞(rao)(rao)外(wai)(wai)(wai)立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)轉(zhuan)(zhuan)動(dong)(dong)，只能與外(wai)(wai)(wai)立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)一(yi)同繞(rao)(rao)內立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)反轉(zhuan)(zhuan)。主(zhu)(zhu)(zhu)軸(zhou)(zhou)箱(xiang)是一(yi)個復合(he)部件，由(you)主(zhu)(zhu)(zhu)傳動(dong)(dong)電動(dong)(dong)機、主(zhu)(zhu)(zhu)軸(zhou)(zhou)和(he)主(zhu)(zhu)(zhu)軸(zhou)(zhou)傳動(dong)(dong)組織(zhi)、進給和(he)變速組織(zhi)、機床的(de)操作(zuo)組織(zhi)等部分(fen)組成(cheng)。主(zhu)(zhu)(zhu)軸(zhou)(zhou)箱(xiang)設備(bei)(bei)在(zai)(zai)搖(yao)(yao)(yao)臂(bei)的(de)水平導(dao)軌(gui)上(shang)，可以(yi)通過手輪操作(zuo)，使其(qi)在(zai)(zai)水平導(dao)軌(gui)上(shang)沿(yan)搖(yao)(yao)(yao)臂(bei)移動(dong)(dong)。當(dang)進行(xing)(xing)加工(gong)(gong)時，由(you)特別的(de)趕緊(jin)(jin)設備(bei)(bei)將主(zhu)(zhu)(zhu)軸(zhou)(zhou)箱(xiang)緊(jin)(jin)固(gu)在(zai)(zai)搖(yao)(yao)(yao)臂(bei)導(dao)軌(gui)上(shang)，而外(wai)(wai)(wai)立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)緊(jin)(jin)固(gu)在(zai)(zai)內立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)上(shang)，搖(yao)(yao)(yao)臂(bei)緊(jin)(jin)固(gu)在(zai)(zai)外(wai)(wai)(wai)立(li)(li)(li)(li)(li)柱(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)(zhu)上(shang)，然后進行(xing)(xing)鉆削加工(gong)(gong)。鉆削加工(gong)(gong)時，鉆頭一(yi)邊進行(xing)(xing)旋轉(zhuan)(zhuan)切削，一(yi)邊進行(xing)(xing)縱向進給。