衡陽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(gao)(gao)度機(ji)電一(yi)體化的(de)產品，工(gong)(gong)件(jian)裝夾后，數(shu)控系統能控制機(ji)床按不同(tong)工(gong)(gong)序(xu)自動選擇、更(geng)(geng)換(huan)刀具、自動對(dui)刀、自動改(gai)變主軸(zhou)轉(zhuan)速、進給(gei)量等，可連續完成(cheng)鉆、鏜、銑、鉸、攻絲等多(duo)種工(gong)(gong)序(xu)，因而大(da)大(da)減少了工(gong)(gong)件(jian)裝夾時間(jian)、測量和(he)機(ji)床調(diao)整(zheng)等輔助工(gong)(gong)序(xu)時間(jian)，對(dui)加工(gong)(gong)形狀比較(jiao)復雜，精度要求較(jiao)高(gao)(gao)，品種更(geng)(geng)換(huan)頻繁的(de)零件(jian)具有良好的(de)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一步(bu)發揮這些優點(dian)，數控(kong)機(ji)(ji)床遂(sui)向“工(gong)序集(ji)中(zhong)(zhong)”，即(ji)一臺數控(kong)機(ji)(ji)床在(zai)一次裝夾零件后(hou)能完成多(duo)工(gong)序加工(gong)的數控(kong)機(ji)(ji)床(即(ji)加工(gong)中(zhong)(zhong)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，首件(批)試切(qie)完后，程序和相關生(sheng)產(chan)信息可保留下來，下次(ci)產(chan)品再生(sheng)產(chan)時(shi)(shi)(shi)，只(zhi)要(yao)很少的(de)(de)準(zhun)備時(shi)(shi)(shi)間就可以開(kai)始(shi)生(sheng)產(chan)。CNC加(jia)工(gong)中(zhong)心工(gong)時(shi)(shi)(shi)包括準(zhun)備工(gong)時(shi)(shi)(shi)和加(jia)工(gong)工(gong)時(shi)(shi)(shi)，CNC加(jia)工(gong)中(zhong)心把很長的(de)(de)單件準(zhun)備工(gong)時(shi)(shi)(shi)平(ping)均分配(pei)到每(mei)一個工(gong)件上，使每(mei)次(ci)生(sheng)產(chan)的(de)(de)平(ping)均實(shi)際工(gong)時(shi)(shi)(shi)減少，生(sheng)產(chan)周期(qi)大大縮(suo)短(duan)。

        （2）高精(jing)度(du)工(gong)(gong)(gong)(gong)件(jian):有些工(gong)(gong)(gong)(gong)件(jian)需(xu)求(qiu)甚少，但屬(shu)關鍵部件(jian)，要求(qiu)精(jing)度(du)高且(qie)工(gong)(gong)(gong)(gong)期短，用傳統(tong)工(gong)(gong)(gong)(gong)藝需(xu)用多臺機(ji)床協調工(gong)(gong)(gong)(gong)作，其周期長、效率低，在(zai)長工(gong)(gong)(gong)(gong)序(xu)流(liu)(liu)程中(zhong)，受人為(wei)影響容易出廢(fei)品，從而(er)造成重大經濟損(sun)失。而(er)采用CNC加工(gong)(gong)(gong)(gong)中(zhong)心進(jin)行加工(gong)(gong)(gong)(gong),生產(chan)完全由(you)程序(xu)自(zi)動控制.避免(mian)了長工(gong)(gong)(gong)(gong)序(xu)流(liu)(liu)程,減少了硬件(jian)投資(zi)及(ji)人為(wei)干擾，具有生產(chan)效益高及(ji)質量穩定的特(te)點。

        （3）批(pi)量(liang)(liang)生(sheng)產(chan)(chan)的工(gong)(gong)件:CNC加(jia)工(gong)(gong)中(zhong)心(xin)生(sheng)產(chan)(chan)的柔性(xing)不僅(jin)體現(xian)在對(dui)特殊(shu)要求的快速反應上，而且(qie)可(ke)(ke)以快速實現(xian)批(pi)量(liang)(liang)生(sheng)產(chan)(chan)，以提高市場競爭能力。CNC加(jia)工(gong)(gong)中(zhong)心(xin)適合于(yu)中(zhong)小(xiao)批(pi)量(liang)(liang)生(sheng)產(chan)(chan)，特別是(shi)小(xiao)批(pi)量(liang)(liang)生(sheng)產(chan)(chan)，在應用CNC加(jia)工(gong)(gong)中(zhong)心(xin)時(shi)。盡量(liang)(liang)使批(pi)量(liang)(liang)大于(yu)經濟批(pi)量(liang)(liang),以達(da)到(dao)良(liang)好的經濟效果。隨著CNC加(jia)工(gong)(gong)中(zhong)心(xin)的不斷發展，經濟批(pi)量(liang)(liang)越來(lai)越小(xiao)，對(dui)一些復雜工(gong)(gong)件，5-10件就可(ke)(ke)以生(sheng)產(chan)(chan)，甚至(zhi)單件生(sheng)產(chan)(chan)時(shi)也(ye)可(ke)(ke)以考慮用CNC加(jia)工(gong)(gong)中(zhong)心(xin)。