沈陽JT50A

  加工中心簡稱CNC，是由機械設備與數控系統組成的使用于加工復雜形狀工件的高效率自動化機床。加工中心又被稱電腦鑼。加工中心備有刀庫，具有自動換刀功能，是對工件一次裝夾后進行多工序加工的數控機床(chuang)(chuang)。加工(gong)中(zhong)心是高(gao)度機電一體化的產品(pin)，工(gong)件(jian)裝(zhuang)夾(jia)后，數(shu)控(kong)系統能控(kong)制機床(chuang)(chuang)按不(bu)同工(gong)序自動(dong)選擇、更(geng)(geng)換(huan)刀具(ju)、自動(dong)對刀、自動(dong)改變主軸轉(zhuan)速(su)、進(jin)給量等，可(ke)連續完成鉆(zhan)、鏜、銑、鉸、攻絲等多種工(gong)序，因而大(da)大(da)減少(shao)了(le)工(gong)件(jian)裝(zhuang)夾(jia)時間(jian)、測量和機床(chuang)(chuang)調整等輔助(zhu)工(gong)序時間(jian)，對加工(gong)形(xing)狀比較復雜，精度要求較高(gao)，品(pin)種更(geng)(geng)換(huan)頻(pin)繁的零件(jian)具(ju)有良好(hao)的經濟效果。

        數控機床實現了中、小批量加工自動化，改善了勞動條件。此外，它還具有生產率高、加工精度穩定、產品成本低等一系列優點。CNC零件加工中心廠家為了進(jin)一步發揮這些優點，數控(kong)機(ji)床(chuang)遂向“工(gong)(gong)序集(ji)中(zhong)(zhong)”，即一臺數控(kong)機(ji)床(chuang)在一次裝夾零件后(hou)能完成多工(gong)(gong)序加(jia)工(gong)(gong)的數控(kong)機(ji)床(chuang)(即加(jia)工(gong)(gong)中(zhong)(zhong)心)方(fang)面(mian)發展。

        CNC立式加工中心的用途:

        （1）期性重復投產的工件:有些產品的市場需求具有周期性和季節性，如果采用專門生產線則得不償失，用普通設備加工效率又太低，且質量不穩定，數量也難以。而采用CNC加工中心，首件(jian)(批)試切完后(hou)，程序和相關生(sheng)產(chan)(chan)(chan)(chan)信息可(ke)保留下(xia)來，下(xia)次產(chan)(chan)(chan)(chan)品(pin)再生(sheng)產(chan)(chan)(chan)(chan)時(shi)(shi)，只要很少的準備時(shi)(shi)間就可(ke)以開始生(sheng)產(chan)(chan)(chan)(chan)。CNC加工(gong)中(zhong)心(xin)工(gong)時(shi)(shi)包括準備工(gong)時(shi)(shi)和加工(gong)工(gong)時(shi)(shi)，CNC加工(gong)中(zhong)心(xin)把很長的單件(jian)準備工(gong)時(shi)(shi)平(ping)均(jun)分配到每一個工(gong)件(jian)上，使(shi)每次生(sheng)產(chan)(chan)(chan)(chan)的平(ping)均(jun)實(shi)際(ji)工(gong)時(shi)(shi)減少，生(sheng)產(chan)(chan)(chan)(chan)周期大大縮短(duan)。

        （2）高精(jing)度(du)工(gong)件:有些工(gong)件需求甚(shen)少，但屬(shu)關鍵部件，要求精(jing)度(du)高且工(gong)期短，用傳統工(gong)藝需用多臺(tai)機(ji)床協(xie)調(diao)工(gong)作，其周期長、效率低，在長工(gong)序(xu)流程中(zhong)，受(shou)人(ren)為影(ying)響容易出(chu)廢品，從(cong)而造成重大經濟損失。而采用CNC加(jia)工(gong)中(zhong)心進行加(jia)工(gong),生產(chan)完全由(you)程序(xu)自動(dong)控制(zhi).避免了長工(gong)序(xu)流程,減少了硬件投資及人(ren)為干擾(rao)，具有生產(chan)效益高及質(zhi)量穩定的(de)特點。

        （3）批(pi)(pi)量(liang)(liang)(liang)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)的(de)工(gong)(gong)件:CNC加工(gong)(gong)中(zhong)(zhong)心生(sheng)(sheng)(sheng)產(chan)(chan)(chan)的(de)柔性不(bu)僅體(ti)現在對特(te)(te)殊要求(qiu)的(de)快速反(fan)應上，而且(qie)可(ke)以快速實現批(pi)(pi)量(liang)(liang)(liang)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)，以提高市場(chang)競爭能力。CNC加工(gong)(gong)中(zhong)(zhong)心適合于中(zhong)(zhong)小批(pi)(pi)量(liang)(liang)(liang)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)，特(te)(te)別是小批(pi)(pi)量(liang)(liang)(liang)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)，在應用(yong)CNC加工(gong)(gong)中(zhong)(zhong)心時。盡(jin)量(liang)(liang)(liang)使批(pi)(pi)量(liang)(liang)(liang)大于經(jing)濟批(pi)(pi)量(liang)(liang)(liang),以達(da)到(dao)良好的(de)經(jing)濟效果。隨著CNC加工(gong)(gong)中(zhong)(zhong)心的(de)不(bu)斷發(fa)展(zhan)，經(jing)濟批(pi)(pi)量(liang)(liang)(liang)越來(lai)越小，對一些復雜工(gong)(gong)件，5-10件就(jiu)可(ke)以生(sheng)(sheng)(sheng)產(chan)(chan)(chan)，甚至(zhi)單件生(sheng)(sheng)(sheng)產(chan)(chan)(chan)時也可(ke)以考慮(lv)用(yong)CNC加工(gong)(gong)中(zhong)(zhong)心。