定西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)中(zhong)心是高度(du)機電一體化(hua)的(de)產品，工(gong)(gong)件(jian)裝(zhuang)(zhuang)夾后，數控系統能控制機床按(an)不同工(gong)(gong)序自動選擇、更換刀(dao)(dao)具、自動對刀(dao)(dao)、自動改變主(zhu)軸轉(zhuan)速(su)、進給(gei)量等，可連續完成(cheng)鉆、鏜(tang)、銑(xian)、鉸、攻絲等多種(zhong)工(gong)(gong)序，因而大(da)大(da)減少了工(gong)(gong)件(jian)裝(zhuang)(zhuang)夾時間、測(ce)量和(he)機床調整(zheng)等輔助(zhu)工(gong)(gong)序時間，對加工(gong)(gong)形狀比較(jiao)復雜，精度(du)要求較(jiao)高，品種(zhong)更換頻繁的(de)零(ling)件(jian)具有良好的(de)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零件加工中心廠家為了進一(yi)步發(fa)揮這些優(you)點，數(shu)控(kong)機床(chuang)遂向“工序集中”，即(ji)一(yi)臺數(shu)控(kong)機床(chuang)在一(yi)次裝夾零件后能完(wan)成多工序加工的數(shu)控(kong)機床(chuang)(即(ji)加工中心)方面發(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(shou)件(jian)(批(pi))試(shi)切完后，程序(xu)和相關(guan)生(sheng)產(chan)(chan)(chan)信息可(ke)保留(liu)下(xia)來，下(xia)次(ci)產(chan)(chan)(chan)品再生(sheng)產(chan)(chan)(chan)時(shi)(shi)(shi)(shi)，只要很少(shao)的(de)準(zhun)備(bei)時(shi)(shi)(shi)(shi)間就可(ke)以開始生(sheng)產(chan)(chan)(chan)。CNC加工(gong)(gong)中心(xin)工(gong)(gong)時(shi)(shi)(shi)(shi)包括準(zhun)備(bei)工(gong)(gong)時(shi)(shi)(shi)(shi)和加工(gong)(gong)工(gong)(gong)時(shi)(shi)(shi)(shi)，CNC加工(gong)(gong)中心(xin)把很長的(de)單件(jian)準(zhun)備(bei)工(gong)(gong)時(shi)(shi)(shi)(shi)平均分(fen)配到每(mei)一個工(gong)(gong)件(jian)上，使(shi)每(mei)次(ci)生(sheng)產(chan)(chan)(chan)的(de)平均實際工(gong)(gong)時(shi)(shi)(shi)(shi)減(jian)少(shao)，生(sheng)產(chan)(chan)(chan)周期(qi)大大縮短。

        （2）高(gao)精度(du)工(gong)件:有些工(gong)件需求(qiu)甚少，但屬關鍵部(bu)件，要求(qiu)精度(du)高(gao)且工(gong)期(qi)短，用(yong)傳(chuan)統工(gong)藝需用(yong)多(duo)臺機床協調工(gong)作，其周期(qi)長、效率低，在長工(gong)序(xu)(xu)流(liu)程(cheng)中(zhong)，受人為(wei)影(ying)響(xiang)容易(yi)出廢品，從而造成重大經濟損失。而采用(yong)CNC加工(gong)中(zhong)心進行(xing)加工(gong),生產(chan)完全由程(cheng)序(xu)(xu)自動控制.避(bi)免了長工(gong)序(xu)(xu)流(liu)程(cheng),減少了硬件投資及人為(wei)干(gan)擾，具(ju)有生產(chan)效益高(gao)及質量(liang)穩定的特點。

        （3）批量(liang)生(sheng)(sheng)(sheng)產(chan)(chan)的工(gong)(gong)(gong)件(jian):CNC加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)中(zhong)(zhong)心(xin)(xin)(xin)生(sheng)(sheng)(sheng)產(chan)(chan)的柔性不僅(jin)體現(xian)在(zai)對特殊要求的快速反應上，而且可(ke)(ke)以(yi)(yi)快速實(shi)現(xian)批量(liang)生(sheng)(sheng)(sheng)產(chan)(chan)，以(yi)(yi)提高市(shi)場(chang)競爭能力。CNC加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)中(zhong)(zhong)心(xin)(xin)(xin)適合于(yu)中(zhong)(zhong)小批量(liang)生(sheng)(sheng)(sheng)產(chan)(chan)，特別是小批量(liang)生(sheng)(sheng)(sheng)產(chan)(chan)，在(zai)應用CNC加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)中(zhong)(zhong)心(xin)(xin)(xin)時。盡(jin)量(liang)使批量(liang)大于(yu)經濟(ji)批量(liang),以(yi)(yi)達到(dao)良好(hao)的經濟(ji)效(xiao)果。隨(sui)著CNC加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)中(zhong)(zhong)心(xin)(xin)(xin)的不斷(duan)發(fa)展，經濟(ji)批量(liang)越來越小，對一些復雜工(gong)(gong)(gong)件(jian)，5-10件(jian)就(jiu)可(ke)(ke)以(yi)(yi)生(sheng)(sheng)(sheng)產(chan)(chan)，甚至單(dan)件(jian)生(sheng)(sheng)(sheng)產(chan)(chan)時也可(ke)(ke)以(yi)(yi)考慮用CNC加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)中(zhong)(zhong)心(xin)(xin)(xin)。