廣州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(chuang)。加工(gong)(gong)中(zhong)心(xin)是高度機電(dian)一體化的產品，工(gong)(gong)件(jian)裝夾(jia)后，數控系統能控制(zhi)機床(chuang)按不(bu)同(tong)工(gong)(gong)序(xu)自動選(xuan)擇、更換(huan)刀具(ju)、自動對刀、自動改(gai)變主軸轉速、進給量等(deng)，可連(lian)續完成鉆(zhan)、鏜、銑、鉸(jiao)、攻絲等(deng)多種工(gong)(gong)序(xu)，因而大大減(jian)少了工(gong)(gong)件(jian)裝夾(jia)時(shi)間(jian)、測量和機床(chuang)調(diao)整等(deng)輔助工(gong)(gong)序(xu)時(shi)間(jian)，對加工(gong)(gong)形狀比較(jiao)復雜，精度要求較(jiao)高，品種更換(huan)頻繁的零件(jian)具(ju)有(you)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零件加工中心廠家為了進(jin)一步(bu)發揮這(zhe)些優點，數(shu)控機(ji)床遂向“工(gong)序(xu)集中”，即一臺數(shu)控機(ji)床在(zai)一次(ci)裝夾(jia)零(ling)件后能(neng)完成多工(gong)序(xu)加工(gong)的數(shu)控機(ji)床(即加工(gong)中心)方面發展(zhan)。

        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)試切完后，程序和相關生(sheng)(sheng)產(chan)信息(xi)可保(bao)留(liu)下來，下次產(chan)品再生(sheng)(sheng)產(chan)時，只要很(hen)少的(de)準(zhun)(zhun)備(bei)(bei)時間(jian)就可以開始(shi)生(sheng)(sheng)產(chan)。CNC加工(gong)(gong)(gong)(gong)中(zhong)心(xin)(xin)工(gong)(gong)(gong)(gong)時包(bao)括準(zhun)(zhun)備(bei)(bei)工(gong)(gong)(gong)(gong)時和加工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)時，CNC加工(gong)(gong)(gong)(gong)中(zhong)心(xin)(xin)把很(hen)長的(de)單件準(zhun)(zhun)備(bei)(bei)工(gong)(gong)(gong)(gong)時平均(jun)分配(pei)到每一(yi)個工(gong)(gong)(gong)(gong)件上(shang)，使每次生(sheng)(sheng)產(chan)的(de)平均(jun)實(shi)際工(gong)(gong)(gong)(gong)時減少，生(sheng)(sheng)產(chan)周期大(da)大(da)縮短(duan)。

        （2）高(gao)(gao)精度工(gong)件(jian)(jian):有(you)些工(gong)件(jian)(jian)需(xu)求甚少(shao)，但屬關鍵部件(jian)(jian)，要求精度高(gao)(gao)且(qie)工(gong)期(qi)(qi)短，用(yong)傳統工(gong)藝需(xu)用(yong)多(duo)臺機(ji)床協調(diao)工(gong)作，其(qi)周期(qi)(qi)長(chang)(chang)、效率低，在(zai)長(chang)(chang)工(gong)序流程中(zhong)，受人為(wei)影響容易出廢品(pin)，從(cong)而造成重大經濟損失。而采(cai)用(yong)CNC加(jia)工(gong)中(zhong)心進行加(jia)工(gong),生產完(wan)全由程序自動(dong)控(kong)制.避免了長(chang)(chang)工(gong)序流程,減少(shao)了硬件(jian)(jian)投(tou)資及人為(wei)干擾，具有(you)生產效益高(gao)(gao)及質(zhi)量穩定的特點。

        （3）批(pi)量(liang)(liang)生產(chan)的工件:CNC加工中(zhong)(zhong)(zhong)(zhong)心(xin)(xin)生產(chan)的柔(rou)性不僅(jin)體現在(zai)對特(te)殊(shu)要求的快速反應(ying)上，而且可以快速實現批(pi)量(liang)(liang)生產(chan)，以提(ti)高市場競爭能力(li)。CNC加工中(zhong)(zhong)(zhong)(zhong)心(xin)(xin)適合(he)于中(zhong)(zhong)(zhong)(zhong)小(xiao)批(pi)量(liang)(liang)生產(chan)，特(te)別(bie)是小(xiao)批(pi)量(liang)(liang)生產(chan)，在(zai)應(ying)用CNC加工中(zhong)(zhong)(zhong)(zhong)心(xin)(xin)時。盡量(liang)(liang)使(shi)批(pi)量(liang)(liang)大(da)于經濟批(pi)量(liang)(liang),以達到(dao)良好的經濟效(xiao)果。隨著CNC加工中(zhong)(zhong)(zhong)(zhong)心(xin)(xin)的不斷發展，經濟批(pi)量(liang)(liang)越(yue)來越(yue)小(xiao)，對一些復雜工件，5-10件就可以生產(chan)，甚至單件生產(chan)時也可以考慮用CNC加工中(zhong)(zhong)(zhong)(zhong)心(xin)(xin)。