商洛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)中心是高度機電一體化的產品，工(gong)(gong)件裝夾(jia)后，數控系統能(neng)控制機床按(an)不同工(gong)(gong)序自(zi)動選(xuan)擇、更換刀(dao)具(ju)、自(zi)動對刀(dao)、自(zi)動改(gai)變主軸轉速、進(jin)給量等(deng)，可(ke)連續完成鉆、鏜、銑、鉸、攻絲等(deng)多(duo)種(zhong)(zhong)工(gong)(gong)序，因而大大減少了工(gong)(gong)件裝夾(jia)時間、測量和機床調整等(deng)輔助工(gong)(gong)序時間，對加工(gong)(gong)形(xing)狀比較(jiao)復(fu)雜，精度要(yao)求較(jiao)高，品種(zhong)(zhong)更換頻繁的零件具(ju)有(you)良好(hao)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(chang)家為了進一(yi)步(bu)發(fa)(fa)揮這些(xie)優點，數(shu)(shu)控(kong)機床(chuang)遂(sui)向“工序集中(zhong)”，即一(yi)臺(tai)數(shu)(shu)控(kong)機床(chuang)在一(yi)次裝夾零件后能完成多工序加工的數(shu)(shu)控(kong)機床(chuang)(即加工中(zhong)心)方面發(fa)(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(qie)完后，程序(xu)和相(xiang)關生(sheng)(sheng)產(chan)信息可(ke)保留(liu)下來(lai)，下次(ci)產(chan)品再生(sheng)(sheng)產(chan)時(shi)，只要(yao)很少(shao)的(de)準備時(shi)間就可(ke)以開始(shi)生(sheng)(sheng)產(chan)。CNC加工(gong)(gong)(gong)中心(xin)工(gong)(gong)(gong)時(shi)包(bao)括(kuo)準備工(gong)(gong)(gong)時(shi)和加工(gong)(gong)(gong)工(gong)(gong)(gong)時(shi)，CNC加工(gong)(gong)(gong)中心(xin)把很長的(de)單件準備工(gong)(gong)(gong)時(shi)平(ping)均分(fen)配到每(mei)一個(ge)工(gong)(gong)(gong)件上，使每(mei)次(ci)生(sheng)(sheng)產(chan)的(de)平(ping)均實(shi)際工(gong)(gong)(gong)時(shi)減(jian)少(shao)，生(sheng)(sheng)產(chan)周期大大縮短。

        （2）高(gao)精度工(gong)(gong)件(jian):有(you)些工(gong)(gong)件(jian)需求甚(shen)少，但屬關鍵(jian)部件(jian)，要求精度高(gao)且工(gong)(gong)期短，用(yong)傳統工(gong)(gong)藝(yi)需用(yong)多臺(tai)機床協調工(gong)(gong)作，其周期長、效率低，在長工(gong)(gong)序(xu)流程(cheng)中，受人為影響容易出(chu)廢(fei)品，從(cong)而造成重大經濟損失。而采用(yong)CNC加(jia)工(gong)(gong)中心進行加(jia)工(gong)(gong),生(sheng)產完全(quan)由程(cheng)序(xu)自動控(kong)制.避免(mian)了(le)長工(gong)(gong)序(xu)流程(cheng),減少了(le)硬件(jian)投資及人為干擾，具有(you)生(sheng)產效益高(gao)及質量穩定的特點。

        （3）批(pi)(pi)量(liang)(liang)生(sheng)(sheng)產的(de)工(gong)(gong)件:CNC加(jia)(jia)工(gong)(gong)中(zhong)心(xin)生(sheng)(sheng)產的(de)柔性(xing)不僅體現(xian)在(zai)對(dui)特殊要(yao)求的(de)快速反(fan)應(ying)上，而且可(ke)以快速實現(xian)批(pi)(pi)量(liang)(liang)生(sheng)(sheng)產，以提高市(shi)場競爭能(neng)力。CNC加(jia)(jia)工(gong)(gong)中(zhong)心(xin)適(shi)合于中(zhong)小批(pi)(pi)量(liang)(liang)生(sheng)(sheng)產，特別是小批(pi)(pi)量(liang)(liang)生(sheng)(sheng)產，在(zai)應(ying)用CNC加(jia)(jia)工(gong)(gong)中(zhong)心(xin)時(shi)。盡量(liang)(liang)使批(pi)(pi)量(liang)(liang)大于經(jing)(jing)濟批(pi)(pi)量(liang)(liang),以達到良好的(de)經(jing)(jing)濟效果。隨(sui)著CNC加(jia)(jia)工(gong)(gong)中(zhong)心(xin)的(de)不斷(duan)發展(zhan)，經(jing)(jing)濟批(pi)(pi)量(liang)(liang)越來越小，對(dui)一些復(fu)雜工(gong)(gong)件，5-10件就可(ke)以生(sheng)(sheng)產，甚(shen)至(zhi)單件生(sheng)(sheng)產時(shi)也(ye)可(ke)以考(kao)慮用CNC加(jia)(jia)工(gong)(gong)中(zhong)心(xin)。