郴州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(jia)工(gong)(gong)(gong)中心是高度機(ji)電一體化的產品，工(gong)(gong)(gong)件(jian)裝(zhuang)夾(jia)后，數控(kong)系統能控(kong)制(zhi)機(ji)床(chuang)按不(bu)同(tong)工(gong)(gong)(gong)序(xu)(xu)自動(dong)選擇、更換(huan)(huan)刀具、自動(dong)對(dui)(dui)刀、自動(dong)改變(bian)主軸轉速、進給(gei)量(liang)(liang)等，可連續(xu)完成鉆、鏜(tang)、銑、鉸、攻絲等多種(zhong)工(gong)(gong)(gong)序(xu)(xu)，因而大大減少了工(gong)(gong)(gong)件(jian)裝(zhuang)夾(jia)時間、測量(liang)(liang)和機(ji)床(chuang)調整(zheng)等輔(fu)助工(gong)(gong)(gong)序(xu)(xu)時間，對(dui)(dui)加(jia)工(gong)(gong)(gong)形狀(zhuang)比較(jiao)復雜，精(jing)度要求較(jiao)高，品種(zhong)更換(huan)(huan)頻(pin)繁的零件(jian)具有良(liang)好的經濟效果。

        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一步發揮這(zhe)些優點，數控機(ji)床(chuang)(chuang)遂向“工(gong)序(xu)(xu)集中(zhong)”，即一臺數控機(ji)床(chuang)(chuang)在一次裝夾零件后能(neng)完成多工(gong)序(xu)(xu)加工(gong)的數控機(ji)床(chuang)(chuang)(即加工(gong)中(zhong)心)方(fang)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(shi)切(qie)完(wan)后，程(cheng)序和相關生(sheng)(sheng)產信息可(ke)保留下來，下次產品再生(sheng)(sheng)產時(shi)，只要很少(shao)(shao)的(de)準備(bei)時(shi)間(jian)就可(ke)以開(kai)始(shi)生(sheng)(sheng)產。CNC加(jia)工(gong)(gong)中心工(gong)(gong)時(shi)包括準備(bei)工(gong)(gong)時(shi)和加(jia)工(gong)(gong)工(gong)(gong)時(shi)，CNC加(jia)工(gong)(gong)中心把(ba)很長的(de)單件準備(bei)工(gong)(gong)時(shi)平均分配到每一個工(gong)(gong)件上，使每次生(sheng)(sheng)產的(de)平均實際工(gong)(gong)時(shi)減少(shao)(shao)，生(sheng)(sheng)產周期大大縮(suo)短。

        （2）高精度工(gong)(gong)件(jian)(jian):有些工(gong)(gong)件(jian)(jian)需求甚少，但(dan)屬關(guan)鍵(jian)部件(jian)(jian)，要求精度高且工(gong)(gong)期短，用傳統工(gong)(gong)藝需用多臺機床協(xie)調工(gong)(gong)作，其(qi)周期長(chang)、效(xiao)率低，在長(chang)工(gong)(gong)序(xu)流(liu)程(cheng)中，受人為(wei)影響容易出廢(fei)品，從而造成重大經濟損失。而采用CNC加工(gong)(gong)中心進行加工(gong)(gong),生產完全由程(cheng)序(xu)自動控制.避免了(le)長(chang)工(gong)(gong)序(xu)流(liu)程(cheng),減(jian)少了(le)硬件(jian)(jian)投資及(ji)人為(wei)干擾，具有生產效(xiao)益(yi)高及(ji)質(zhi)量穩定的特(te)點。

        （3）批(pi)(pi)(pi)量(liang)(liang)(liang)(liang)生(sheng)產(chan)的工(gong)(gong)件:CNC加(jia)工(gong)(gong)中(zhong)心(xin)生(sheng)產(chan)的柔性不(bu)僅體現(xian)在對特殊要(yao)求的快速反應(ying)上，而且可以(yi)快速實現(xian)批(pi)(pi)(pi)量(liang)(liang)(liang)(liang)生(sheng)產(chan)，以(yi)提高市場競爭能力。CNC加(jia)工(gong)(gong)中(zhong)心(xin)適合于中(zhong)小批(pi)(pi)(pi)量(liang)(liang)(liang)(liang)生(sheng)產(chan)，特別是小批(pi)(pi)(pi)量(liang)(liang)(liang)(liang)生(sheng)產(chan)，在應(ying)用(yong)CNC加(jia)工(gong)(gong)中(zhong)心(xin)時。盡量(liang)(liang)(liang)(liang)使批(pi)(pi)(pi)量(liang)(liang)(liang)(liang)大于經濟批(pi)(pi)(pi)量(liang)(liang)(liang)(liang),以(yi)達到良好的經濟效果。隨著CNC加(jia)工(gong)(gong)中(zhong)心(xin)的不(bu)斷發展，經濟批(pi)(pi)(pi)量(liang)(liang)(liang)(liang)越(yue)來越(yue)小，對一些(xie)復雜工(gong)(gong)件，5-10件就可以(yi)生(sheng)產(chan)，甚至單(dan)件生(sheng)產(chan)時也可以(yi)考(kao)慮用(yong)CNC加(jia)工(gong)(gong)中(zhong)心(xin)。