南昌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(shi)高度(du)機(ji)電(dian)一體化的(de)產品(pin)，工(gong)(gong)件裝(zhuang)(zhuang)夾后，數控系統能控制機(ji)床按(an)不同工(gong)(gong)序(xu)自動(dong)選擇、更換刀(dao)(dao)具(ju)、自動(dong)對(dui)刀(dao)(dao)、自動(dong)改變(bian)主(zhu)軸轉速、進(jin)給量等，可(ke)連續(xu)完成鉆、鏜、銑、鉸、攻絲等多種工(gong)(gong)序(xu)，因而大大減少了工(gong)(gong)件裝(zhuang)(zhuang)夾時間、測量和(he)機(ji)床調整等輔助工(gong)(gong)序(xu)時間，對(dui)加工(gong)(gong)形狀比較復(fu)雜，精度(du)要求較高，品(pin)種更換頻繁的(de)零件具(ju)有良好的(de)經(jing)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(zhe)些優點，數(shu)控機(ji)床遂向“工(gong)(gong)序集中”，即一(yi)臺數(shu)控機(ji)床在一(yi)次裝夾零(ling)件(jian)后能完(wan)成多工(gong)(gong)序加工(gong)(gong)的數(shu)控機(ji)床(即加工(gong)(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(批)試切完后，程序和相(xiang)關生(sheng)產(chan)信息可保留下(xia)來，下(xia)次產(chan)品再生(sheng)產(chan)時(shi)(shi)，只要(yao)很少的(de)準備(bei)時(shi)(shi)間就可以開(kai)始生(sheng)產(chan)。CNC加工(gong)(gong)(gong)中心工(gong)(gong)(gong)時(shi)(shi)包括準備(bei)工(gong)(gong)(gong)時(shi)(shi)和加工(gong)(gong)(gong)工(gong)(gong)(gong)時(shi)(shi)，CNC加工(gong)(gong)(gong)中心把(ba)很長(chang)的(de)單件準備(bei)工(gong)(gong)(gong)時(shi)(shi)平均分(fen)配到(dao)每(mei)一個工(gong)(gong)(gong)件上，使(shi)每(mei)次生(sheng)產(chan)的(de)平均實際工(gong)(gong)(gong)時(shi)(shi)減(jian)少，生(sheng)產(chan)周期大大縮短。

        （2）高精度(du)工(gong)(gong)(gong)件(jian):有些工(gong)(gong)(gong)件(jian)需(xu)求甚少(shao)，但屬關鍵部件(jian)，要求精度(du)高且工(gong)(gong)(gong)期短，用(yong)傳統工(gong)(gong)(gong)藝(yi)需(xu)用(yong)多臺機床協調工(gong)(gong)(gong)作，其(qi)周(zhou)期長(chang)、效率低，在(zai)長(chang)工(gong)(gong)(gong)序流程中，受人(ren)為影響容(rong)易出廢品，從而造(zao)成(cheng)重大經濟(ji)損(sun)失。而采用(yong)CNC加工(gong)(gong)(gong)中心(xin)進行加工(gong)(gong)(gong),生產完全由程序自動(dong)控制.避免了長(chang)工(gong)(gong)(gong)序流程,減少(shao)了硬件(jian)投資及(ji)人(ren)為干擾，具有生產效益高及(ji)質量穩(wen)定的特點(dian)。

        （3）批(pi)(pi)量(liang)(liang)生產(chan)的(de)(de)工(gong)件:CNC加工(gong)中(zhong)(zhong)(zhong)(zhong)心生產(chan)的(de)(de)柔(rou)性不(bu)僅體現(xian)(xian)在(zai)對(dui)特殊要(yao)求的(de)(de)快速反應(ying)上，而(er)且可(ke)(ke)以(yi)快速實現(xian)(xian)批(pi)(pi)量(liang)(liang)生產(chan)，以(yi)提高(gao)市場競爭能(neng)力。CNC加工(gong)中(zhong)(zhong)(zhong)(zhong)心適合于中(zhong)(zhong)(zhong)(zhong)小(xiao)批(pi)(pi)量(liang)(liang)生產(chan)，特別是小(xiao)批(pi)(pi)量(liang)(liang)生產(chan)，在(zai)應(ying)用CNC加工(gong)中(zhong)(zhong)(zhong)(zhong)心時(shi)。盡量(liang)(liang)使(shi)批(pi)(pi)量(liang)(liang)大于經(jing)(jing)濟(ji)批(pi)(pi)量(liang)(liang),以(yi)達到良好的(de)(de)經(jing)(jing)濟(ji)效果。隨著CNC加工(gong)中(zhong)(zhong)(zhong)(zhong)心的(de)(de)不(bu)斷發展，經(jing)(jing)濟(ji)批(pi)(pi)量(liang)(liang)越來越小(xiao)，對(dui)一些復(fu)雜工(gong)件，5-10件就可(ke)(ke)以(yi)生產(chan)，甚(shen)至單件生產(chan)時(shi)也可(ke)(ke)以(yi)考慮(lv)用CNC加工(gong)中(zhong)(zhong)(zhong)(zhong)心。