臥式加工中心是指主軸軸線與工作臺平行設置的加工中心，主要適用于加工箱體類零件。他的工作原理是工件在加工中心上經一次裝夾后，電腦能自動選擇不同的刀具，自動改變機床主軸轉速，依次完成工件多個面上多工序的加工。他的優勢是能夠大大提高生產效率，但是占地大、成本高。
　　工(gong)(gong)(gong)(gong)件(jian)在加(jia)工(gong)(gong)(gong)(gong)中心(xin)上經一(yi)次裝夾(jia)后，數字控(kong)(kong)制系統(tong)能(neng)(neng)控(kong)(kong)制機床按(an)不同加(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)序，自動(dong)選擇及更換刀(dao)具，自動(dong)改(gai)變(bian)機床主軸(zhou)轉速、進給(gei)速度(du)和(he)刀(dao)具相對(dui)工(gong)(gong)(gong)(gong)件(jian)的運動(dong)軌跡及其它(ta)輔(fu)助功能(neng)(neng)，依(yi)帶交換工(gong)(gong)(gong)(gong)作臺的臥式加(jia)工(gong)(gong)(gong)(gong)中心(xin)(2張(zhang))次完成工(gong)(gong)(gong)(gong)件(jian)多(duo)個面上多(duo)工(gong)(gong)(gong)(gong)序的加(jia)工(gong)(gong)(gong)(gong)。并且有多(duo)種換刀(dao)或選刀(dao)功能(neng)(neng)，從而使(shi)生(sheng)產(chan)效率大大提(ti)高(gao)。