來賓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)中心是高(gao)度機(ji)(ji)電一體化(hua)的產品，工(gong)件裝夾后，數控系統能控制機(ji)(ji)床(chuang)按不同工(gong)序自(zi)動選擇、更換刀具、自(zi)動對刀、自(zi)動改變(bian)主軸轉速(su)、進給量等(deng)，可連續完(wan)成(cheng)鉆、鏜、銑、鉸、攻絲等(deng)多(duo)種(zhong)工(gong)序，因而大(da)大(da)減少(shao)了工(gong)件裝夾時(shi)間、測量和機(ji)(ji)床(chuang)調(diao)整等(deng)輔助工(gong)序時(shi)間，對加工(gong)形(xing)狀比較復雜(za)，精度要(yao)求較高(gao)，品種(zhong)更換頻(pin)繁的零件具有良好的經濟效(xiao)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(jia)為了進一(yi)步發揮這些優(you)點，數控(kong)(kong)機(ji)床(chuang)(chuang)遂向“工序集中”，即一(yi)臺(tai)數控(kong)(kong)機(ji)床(chuang)(chuang)在一(yi)次裝夾零件后能完成(cheng)多工序加(jia)工的(de)數控(kong)(kong)機(ji)床(chuang)(chuang)(即加(jia)工中心)方(fang)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(jian)(批)試切(qie)完后，程序和(he)相關(guan)生(sheng)產(chan)信息可(ke)保留下(xia)(xia)來，下(xia)(xia)次(ci)產(chan)品(pin)再生(sheng)產(chan)時(shi)(shi)(shi)，只要很(hen)少(shao)的準備(bei)時(shi)(shi)(shi)間就可(ke)以(yi)開始生(sheng)產(chan)。CNC加工中心工時(shi)(shi)(shi)包括(kuo)準備(bei)工時(shi)(shi)(shi)和(he)加工工時(shi)(shi)(shi)，CNC加工中心把很(hen)長的單件(jian)準備(bei)工時(shi)(shi)(shi)平(ping)均(jun)分配到(dao)每一個工件(jian)上(shang)，使每次(ci)生(sheng)產(chan)的平(ping)均(jun)實際工時(shi)(shi)(shi)減少(shao)，生(sheng)產(chan)周期(qi)大(da)大(da)縮短。

        （2）高(gao)精(jing)度工(gong)(gong)(gong)件(jian):有些(xie)工(gong)(gong)(gong)件(jian)需求(qiu)(qiu)甚少，但屬(shu)關鍵部件(jian)，要求(qiu)(qiu)精(jing)度高(gao)且(qie)工(gong)(gong)(gong)期短，用(yong)傳統工(gong)(gong)(gong)藝(yi)需用(yong)多臺機床(chuang)協調工(gong)(gong)(gong)作(zuo)，其周期長(chang)、效率(lv)低，在(zai)長(chang)工(gong)(gong)(gong)序(xu)流程中，受(shou)人為影響容易出廢品(pin)，從而造成重(zhong)大經濟損失。而采用(yong)CNC加(jia)工(gong)(gong)(gong)中心(xin)進行加(jia)工(gong)(gong)(gong),生產(chan)完全由程序(xu)自動控制.避免了長(chang)工(gong)(gong)(gong)序(xu)流程,減少了硬件(jian)投資及人為干(gan)擾，具(ju)有生產(chan)效益高(gao)及質(zhi)量穩(wen)定的特(te)點。

        （3）批量(liang)(liang)(liang)生(sheng)(sheng)產(chan)(chan)的工(gong)(gong)(gong)(gong)(gong)件:CNC加(jia)工(gong)(gong)(gong)(gong)(gong)中(zhong)(zhong)(zhong)心生(sheng)(sheng)產(chan)(chan)的柔性不僅體現(xian)在(zai)對特殊要求(qiu)的快速反應上，而(er)且可以快速實現(xian)批量(liang)(liang)(liang)生(sheng)(sheng)產(chan)(chan)，以提高市場競爭能(neng)力(li)。CNC加(jia)工(gong)(gong)(gong)(gong)(gong)中(zhong)(zhong)(zhong)心適合于中(zhong)(zhong)(zhong)小批量(liang)(liang)(liang)生(sheng)(sheng)產(chan)(chan)，特別是小批量(liang)(liang)(liang)生(sheng)(sheng)產(chan)(chan)，在(zai)應用(yong)CNC加(jia)工(gong)(gong)(gong)(gong)(gong)中(zhong)(zhong)(zhong)心時。盡量(liang)(liang)(liang)使批量(liang)(liang)(liang)大于經濟批量(liang)(liang)(liang),以達到良好(hao)的經濟效果(guo)。隨著CNC加(jia)工(gong)(gong)(gong)(gong)(gong)中(zhong)(zhong)(zhong)心的不斷發展(zhan)，經濟批量(liang)(liang)(liang)越來(lai)越小，對一些復雜工(gong)(gong)(gong)(gong)(gong)件，5-10件就可以生(sheng)(sheng)產(chan)(chan)，甚至單件生(sheng)(sheng)產(chan)(chan)時也可以考慮用(yong)CNC加(jia)工(gong)(gong)(gong)(gong)(gong)中(zhong)(zhong)(zhong)心。