馬鞍山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(jia)工(gong)中心是高度(du)機電(dian)一體化的產品，工(gong)件(jian)裝夾(jia)后，數控(kong)系統能控(kong)制機床按不(bu)同工(gong)序(xu)(xu)自動(dong)選擇(ze)、更(geng)換刀(dao)具(ju)、自動(dong)對刀(dao)、自動(dong)改變主軸轉速(su)、進給量(liang)等，可連續完成(cheng)鉆、鏜(tang)、銑、鉸(jiao)、攻絲等多種(zhong)工(gong)序(xu)(xu)，因(yin)而(er)大(da)大(da)減少(shao)了(le)工(gong)件(jian)裝夾(jia)時間(jian)(jian)、測量(liang)和機床調整等輔助工(gong)序(xu)(xu)時間(jian)(jian)，對加(jia)工(gong)形狀比較復雜(za)，精度(du)要求較高，品種(zhong)更(geng)換頻(pin)繁的零件(jian)具(ju)有(you)良好的經濟(ji)效果(guo)。

        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(jia)為(wei)了(le)進一(yi)步發揮這些優(you)點，數控機(ji)(ji)床(chuang)遂(sui)向(xiang)“工序(xu)集中”，即(ji)一(yi)臺數控機(ji)(ji)床(chuang)在一(yi)次裝夾零件后能完成多(duo)工序(xu)加工的數控機(ji)(ji)床(chuang)(即(ji)加工中心)方面發展。

        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(shou)件(批)試切完(wan)后，程序和(he)相關生(sheng)(sheng)產(chan)(chan)(chan)信息可(ke)(ke)保留下來，下次產(chan)(chan)(chan)品再生(sheng)(sheng)產(chan)(chan)(chan)時(shi)(shi)，只要(yao)很(hen)少(shao)的準備時(shi)(shi)間就(jiu)可(ke)(ke)以開始生(sheng)(sheng)產(chan)(chan)(chan)。CNC加(jia)工(gong)(gong)中心工(gong)(gong)時(shi)(shi)包括準備工(gong)(gong)時(shi)(shi)和(he)加(jia)工(gong)(gong)工(gong)(gong)時(shi)(shi)，CNC加(jia)工(gong)(gong)中心把(ba)很(hen)長的單件準備工(gong)(gong)時(shi)(shi)平均(jun)分配到每一(yi)個工(gong)(gong)件上(shang)，使每次生(sheng)(sheng)產(chan)(chan)(chan)的平均(jun)實際工(gong)(gong)時(shi)(shi)減少(shao)，生(sheng)(sheng)產(chan)(chan)(chan)周期(qi)大大縮短。

        （2）高精度工(gong)(gong)(gong)(gong)件:有(you)些工(gong)(gong)(gong)(gong)件需求甚少，但屬關(guan)鍵部件，要求精度高且工(gong)(gong)(gong)(gong)期短，用(yong)傳統工(gong)(gong)(gong)(gong)藝需用(yong)多(duo)臺機床協調工(gong)(gong)(gong)(gong)作，其周期長、效(xiao)率低，在長工(gong)(gong)(gong)(gong)序(xu)流(liu)程(cheng)中(zhong)，受人為(wei)影響(xiang)容易出廢品，從而造成重(zhong)大經濟損失。而采用(yong)CNC加工(gong)(gong)(gong)(gong)中(zhong)心進行(xing)加工(gong)(gong)(gong)(gong),生產完全由程(cheng)序(xu)自(zi)動控制.避免了(le)長工(gong)(gong)(gong)(gong)序(xu)流(liu)程(cheng),減少了(le)硬件投資及人為(wei)干擾，具有(you)生產效(xiao)益高及質量穩定的特點(dian)。

        （3）批(pi)量(liang)生(sheng)產(chan)的(de)工(gong)件:CNC加工(gong)中(zhong)(zhong)(zhong)心生(sheng)產(chan)的(de)柔性不僅體現(xian)在對特殊要(yao)求的(de)快(kuai)速(su)(su)反應(ying)上，而且(qie)可(ke)(ke)以快(kuai)速(su)(su)實(shi)現(xian)批(pi)量(liang)生(sheng)產(chan)，以提(ti)高市(shi)場競爭能力。CNC加工(gong)中(zhong)(zhong)(zhong)心適合于中(zhong)(zhong)(zhong)小(xiao)(xiao)批(pi)量(liang)生(sheng)產(chan)，特別是小(xiao)(xiao)批(pi)量(liang)生(sheng)產(chan)，在應(ying)用(yong)CNC加工(gong)中(zhong)(zhong)(zhong)心時。盡量(liang)使批(pi)量(liang)大于經(jing)濟(ji)批(pi)量(liang),以達到良好的(de)經(jing)濟(ji)效果(guo)。隨(sui)著CNC加工(gong)中(zhong)(zhong)(zhong)心的(de)不斷發展(zhan)，經(jing)濟(ji)批(pi)量(liang)越來越小(xiao)(xiao)，對一些復雜工(gong)件，5-10件就可(ke)(ke)以生(sheng)產(chan)，甚(shen)至單件生(sheng)產(chan)時也可(ke)(ke)以考慮用(yong)CNC加工(gong)中(zhong)(zhong)(zhong)心。