株洲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(shi)高(gao)度(du)機(ji)電一體化的(de)產品，工(gong)件裝(zhuang)夾后，數控(kong)系(xi)統能控(kong)制機(ji)床按不(bu)同工(gong)序自動(dong)選擇(ze)、更換刀具、自動(dong)對(dui)刀、自動(dong)改變主軸(zhou)轉速(su)、進給量等(deng)，可連續完成鉆、鏜、銑、鉸、攻(gong)絲等(deng)多(duo)種(zhong)工(gong)序，因而(er)大大減少了工(gong)件裝(zhuang)夾時間、測(ce)量和(he)機(ji)床調整等(deng)輔助工(gong)序時間，對(dui)加工(gong)形狀比較復(fu)雜，精度(du)要求較高(gao)，品種(zhong)更換頻繁的(de)零件具有(you)良好的(de)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(jia)為了進一步發揮這些優點，數控(kong)機床(chuang)遂向“工(gong)序集(ji)中”，即一臺數控(kong)機床(chuang)在一次(ci)裝夾零(ling)件(jian)后能完成多工(gong)序加工(gong)的數控(kong)機床(chuang)(即加工(gong)中心(xin))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(jian)(批)試(shi)切(qie)完(wan)后，程(cheng)序(xu)和相關(guan)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)信息可保(bao)留下來，下次產(chan)(chan)(chan)品再生(sheng)(sheng)(sheng)產(chan)(chan)(chan)時(shi)，只要很(hen)少(shao)的(de)(de)準備(bei)時(shi)間(jian)就(jiu)可以開(kai)始生(sheng)(sheng)(sheng)產(chan)(chan)(chan)。CNC加(jia)工(gong)(gong)(gong)(gong)中心工(gong)(gong)(gong)(gong)時(shi)包括準備(bei)工(gong)(gong)(gong)(gong)時(shi)和加(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)時(shi)，CNC加(jia)工(gong)(gong)(gong)(gong)中心把很(hen)長的(de)(de)單件(jian)準備(bei)工(gong)(gong)(gong)(gong)時(shi)平(ping)均(jun)分配(pei)到每一個(ge)工(gong)(gong)(gong)(gong)件(jian)上，使每次生(sheng)(sheng)(sheng)產(chan)(chan)(chan)的(de)(de)平(ping)均(jun)實際工(gong)(gong)(gong)(gong)時(shi)減少(shao)，生(sheng)(sheng)(sheng)產(chan)(chan)(chan)周期大大縮短(duan)。

        （2）高(gao)精度工(gong)(gong)(gong)件(jian):有(you)些工(gong)(gong)(gong)件(jian)需(xu)求(qiu)甚少，但(dan)屬關鍵部件(jian)，要求(qiu)精度高(gao)且工(gong)(gong)(gong)期短(duan)，用傳統工(gong)(gong)(gong)藝需(xu)用多(duo)臺(tai)機床協調(diao)工(gong)(gong)(gong)作，其周期長、效率低(di)，在長工(gong)(gong)(gong)序流程(cheng)中，受人為影響容易出廢(fei)品(pin)，從而造成(cheng)重大經濟(ji)損失。而采用CNC加工(gong)(gong)(gong)中心進行(xing)加工(gong)(gong)(gong),生產完(wan)全(quan)由程(cheng)序自動控制(zhi).避免了長工(gong)(gong)(gong)序流程(cheng),減(jian)少了硬件(jian)投資及人為干擾，具有(you)生產效益高(gao)及質量穩定的(de)特點。

        （3）批(pi)(pi)量(liang)(liang)生(sheng)(sheng)(sheng)產(chan)的(de)(de)工(gong)(gong)(gong)(gong)件:CNC加(jia)工(gong)(gong)(gong)(gong)中(zhong)心(xin)生(sheng)(sheng)(sheng)產(chan)的(de)(de)柔性不僅體現在(zai)對(dui)特殊要求的(de)(de)快(kuai)速反(fan)應上，而且可以(yi)(yi)快(kuai)速實現批(pi)(pi)量(liang)(liang)生(sheng)(sheng)(sheng)產(chan)，以(yi)(yi)提高市場競爭能力(li)。CNC加(jia)工(gong)(gong)(gong)(gong)中(zhong)心(xin)適合于(yu)中(zhong)小(xiao)批(pi)(pi)量(liang)(liang)生(sheng)(sheng)(sheng)產(chan)，特別(bie)是(shi)小(xiao)批(pi)(pi)量(liang)(liang)生(sheng)(sheng)(sheng)產(chan)，在(zai)應用(yong)CNC加(jia)工(gong)(gong)(gong)(gong)中(zhong)心(xin)時。盡(jin)量(liang)(liang)使批(pi)(pi)量(liang)(liang)大于(yu)經濟(ji)(ji)批(pi)(pi)量(liang)(liang),以(yi)(yi)達到良好的(de)(de)經濟(ji)(ji)效(xiao)果。隨著CNC加(jia)工(gong)(gong)(gong)(gong)中(zhong)心(xin)的(de)(de)不斷發展(zhan)，經濟(ji)(ji)批(pi)(pi)量(liang)(liang)越來越小(xiao)，對(dui)一些復雜工(gong)(gong)(gong)(gong)件，5-10件就可以(yi)(yi)生(sheng)(sheng)(sheng)產(chan)，甚至單(dan)件生(sheng)(sheng)(sheng)產(chan)時也可以(yi)(yi)考慮用(yong)CNC加(jia)工(gong)(gong)(gong)(gong)中(zhong)心(xin)。