湘潭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)中心是高度(du)機(ji)電一體化的(de)產(chan)品，工(gong)件(jian)裝夾(jia)后(hou)，數控系統能(neng)控制機(ji)床按不同工(gong)序自(zi)動選擇、更(geng)換(huan)刀具、自(zi)動對(dui)刀、自(zi)動改變主軸轉(zhuan)速、進給量等，可連續完(wan)成鉆、鏜、銑、鉸、攻(gong)絲等多種工(gong)序，因而大大減少了工(gong)件(jian)裝夾(jia)時間(jian)、測量和(he)機(ji)床調整等輔助工(gong)序時間(jian)，對(dui)加工(gong)形狀比較(jiao)復雜，精度(du)要求較(jiao)高，品種更(geng)換(huan)頻繁的(de)零件(jian)具有良好(hao)的(de)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零件加工中心廠家為了進一(yi)步(bu)發(fa)(fa)揮這些優點，數(shu)控(kong)機(ji)(ji)床遂向“工(gong)序集中”，即一(yi)臺(tai)數(shu)控(kong)機(ji)(ji)床在一(yi)次(ci)裝夾零(ling)件后能完成多工(gong)序加工(gong)的數(shu)控(kong)機(ji)(ji)床(即加工(gong)中心)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)試切完后，程序和相關生產(chan)(chan)信息可保留下來，下次產(chan)(chan)品再(zai)生產(chan)(chan)時(shi)，只(zhi)要很少的準(zhun)備時(shi)間就可以開(kai)始(shi)生產(chan)(chan)。CNC加工(gong)(gong)(gong)(gong)(gong)中(zhong)心(xin)工(gong)(gong)(gong)(gong)(gong)時(shi)包(bao)括準(zhun)備工(gong)(gong)(gong)(gong)(gong)時(shi)和加工(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)時(shi)，CNC加工(gong)(gong)(gong)(gong)(gong)中(zhong)心(xin)把很長的單件準(zhun)備工(gong)(gong)(gong)(gong)(gong)時(shi)平均(jun)分配到每一個工(gong)(gong)(gong)(gong)(gong)件上，使每次生產(chan)(chan)的平均(jun)實際工(gong)(gong)(gong)(gong)(gong)時(shi)減少，生產(chan)(chan)周期大(da)大(da)縮短。

        （2）高精(jing)度(du)工(gong)(gong)(gong)(gong)(gong)件:有(you)些工(gong)(gong)(gong)(gong)(gong)件需(xu)求(qiu)甚(shen)少(shao)，但(dan)屬關鍵(jian)部件，要(yao)求(qiu)精(jing)度(du)高且(qie)工(gong)(gong)(gong)(gong)(gong)期短，用(yong)傳統(tong)工(gong)(gong)(gong)(gong)(gong)藝(yi)需(xu)用(yong)多臺機床協調工(gong)(gong)(gong)(gong)(gong)作，其周(zhou)期長、效率(lv)低(di)，在(zai)長工(gong)(gong)(gong)(gong)(gong)序流(liu)程中(zhong)，受人為(wei)影響(xiang)容易出(chu)廢(fei)品(pin)，從而(er)造成(cheng)重大經濟損失。而(er)采(cai)用(yong)CNC加(jia)工(gong)(gong)(gong)(gong)(gong)中(zhong)心進(jin)行(xing)加(jia)工(gong)(gong)(gong)(gong)(gong),生(sheng)產完(wan)全由程序自動(dong)控(kong)制.避免了長工(gong)(gong)(gong)(gong)(gong)序流(liu)程,減少(shao)了硬件投資及人為(wei)干(gan)擾，具有(you)生(sheng)產效益(yi)高及質量(liang)穩定的特點。

        （3）批量(liang)(liang)生(sheng)(sheng)(sheng)(sheng)產(chan)的工(gong)件(jian)(jian)(jian):CNC加(jia)(jia)(jia)工(gong)中(zhong)心(xin)生(sheng)(sheng)(sheng)(sheng)產(chan)的柔性不(bu)僅體現在對特殊(shu)要求(qiu)的快(kuai)速反(fan)應(ying)上，而且可(ke)(ke)以(yi)快(kuai)速實現批量(liang)(liang)生(sheng)(sheng)(sheng)(sheng)產(chan)，以(yi)提(ti)高(gao)市場競(jing)爭能力。CNC加(jia)(jia)(jia)工(gong)中(zhong)心(xin)適合于(yu)中(zhong)小(xiao)批量(liang)(liang)生(sheng)(sheng)(sheng)(sheng)產(chan)，特別是小(xiao)批量(liang)(liang)生(sheng)(sheng)(sheng)(sheng)產(chan)，在應(ying)用CNC加(jia)(jia)(jia)工(gong)中(zhong)心(xin)時(shi)。盡量(liang)(liang)使批量(liang)(liang)大(da)于(yu)經(jing)(jing)濟批量(liang)(liang),以(yi)達到良好的經(jing)(jing)濟效果。隨著CNC加(jia)(jia)(jia)工(gong)中(zhong)心(xin)的不(bu)斷發展，經(jing)(jing)濟批量(liang)(liang)越(yue)來越(yue)小(xiao)，對一些復雜(za)工(gong)件(jian)(jian)(jian)，5-10件(jian)(jian)(jian)就(jiu)可(ke)(ke)以(yi)生(sheng)(sheng)(sheng)(sheng)產(chan)，甚至單件(jian)(jian)(jian)生(sheng)(sheng)(sheng)(sheng)產(chan)時(shi)也可(ke)(ke)以(yi)考慮用CNC加(jia)(jia)(jia)工(gong)中(zhong)心(xin)。