亳州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。加工(gong)(gong)(gong)中(zhong)心(xin)是高度(du)機電(dian)一體化(hua)的產品，工(gong)(gong)(gong)件裝(zhuang)夾(jia)后，數控系(xi)統能(neng)控制機床按(an)不同工(gong)(gong)(gong)序自動(dong)選(xuan)擇、更換(huan)刀具、自動(dong)對刀、自動(dong)改變主軸轉速、進給(gei)量等(deng)(deng)，可(ke)連續完(wan)成鉆、鏜、銑、鉸、攻絲(si)等(deng)(deng)多種(zhong)工(gong)(gong)(gong)序，因而(er)大大減少了(le)工(gong)(gong)(gong)件裝(zhuang)夾(jia)時間、測量和機床調(diao)整等(deng)(deng)輔助工(gong)(gong)(gong)序時間，對加工(gong)(gong)(gong)形(xing)狀比較(jiao)復雜，精(jing)度(du)要求(qiu)較(jiao)高，品種(zhong)更換(huan)頻繁的零件具有良好的經(jing)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(chang)家為(wei)了進一(yi)步發(fa)揮這些(xie)優點(dian)，數(shu)控機(ji)床遂向“工(gong)序集中”，即一(yi)臺數(shu)控機(ji)床在一(yi)次裝夾零件后能(neng)完(wan)成多工(gong)序加(jia)工(gong)的數(shu)控機(ji)床(即加(jia)工(gong)中心)方面(mian)發(fa)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(批)試切完后，程序和相關生(sheng)產(chan)信息(xi)可(ke)(ke)保留下來，下次(ci)產(chan)品再生(sheng)產(chan)時(shi)(shi)，只要很(hen)少的(de)準備時(shi)(shi)間就可(ke)(ke)以(yi)開始(shi)生(sheng)產(chan)。CNC加工(gong)(gong)中心工(gong)(gong)時(shi)(shi)包括準備工(gong)(gong)時(shi)(shi)和加工(gong)(gong)工(gong)(gong)時(shi)(shi)，CNC加工(gong)(gong)中心把很(hen)長的(de)單(dan)件準備工(gong)(gong)時(shi)(shi)平均分配(pei)到每一個工(gong)(gong)件上(shang)，使每次(ci)生(sheng)產(chan)的(de)平均實際工(gong)(gong)時(shi)(shi)減(jian)少，生(sheng)產(chan)周期大大縮短(duan)。

        （2）高(gao)精度工(gong)(gong)(gong)件:有(you)些工(gong)(gong)(gong)件需(xu)求甚少(shao)(shao)，但屬關鍵部(bu)件，要求精度高(gao)且(qie)工(gong)(gong)(gong)期短，用傳統工(gong)(gong)(gong)藝需(xu)用多臺機床協調(diao)工(gong)(gong)(gong)作，其周期長、效率低(di)，在長工(gong)(gong)(gong)序流程(cheng)中，受人為影響容易出(chu)廢品，從而造(zao)成(cheng)重大(da)經濟損(sun)失。而采用CNC加工(gong)(gong)(gong)中心進行加工(gong)(gong)(gong),生(sheng)產完全由程(cheng)序自(zi)動控制.避免了長工(gong)(gong)(gong)序流程(cheng),減(jian)少(shao)(shao)了硬件投(tou)資及人為干擾(rao)，具有(you)生(sheng)產效益高(gao)及質量穩定的(de)特點。

        （3）批(pi)量(liang)(liang)生(sheng)產(chan)的(de)工(gong)(gong)(gong)件(jian)(jian):CNC加(jia)工(gong)(gong)(gong)中(zhong)心(xin)生(sheng)產(chan)的(de)柔性不(bu)僅體現在(zai)對特殊要求的(de)快(kuai)速(su)反(fan)應上，而且(qie)可以快(kuai)速(su)實現批(pi)量(liang)(liang)生(sheng)產(chan)，以提高(gao)市(shi)場(chang)競爭(zheng)能力。CNC加(jia)工(gong)(gong)(gong)中(zhong)心(xin)適合于(yu)中(zhong)小批(pi)量(liang)(liang)生(sheng)產(chan)，特別是(shi)小批(pi)量(liang)(liang)生(sheng)產(chan)，在(zai)應用CNC加(jia)工(gong)(gong)(gong)中(zhong)心(xin)時(shi)。盡量(liang)(liang)使批(pi)量(liang)(liang)大于(yu)經濟批(pi)量(liang)(liang),以達到(dao)良好的(de)經濟效果(guo)。隨著(zhu)CNC加(jia)工(gong)(gong)(gong)中(zhong)心(xin)的(de)不(bu)斷發展，經濟批(pi)量(liang)(liang)越來越小，對一些復雜工(gong)(gong)(gong)件(jian)(jian)，5-10件(jian)(jian)就可以生(sheng)產(chan)，甚(shen)至單件(jian)(jian)生(sheng)產(chan)時(shi)也可以考慮用CNC加(jia)工(gong)(gong)(gong)中(zhong)心(xin)。