黔南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(jia)工(gong)(gong)(gong)(gong)中心是高度(du)機電一體化(hua)的產(chan)品，工(gong)(gong)(gong)(gong)件(jian)(jian)裝(zhuang)夾后，數控系統能控制(zhi)機床按不同(tong)工(gong)(gong)(gong)(gong)序(xu)自(zi)(zi)動選擇、更(geng)換刀具(ju)、自(zi)(zi)動對刀、自(zi)(zi)動改變主軸轉速、進給量(liang)(liang)等，可連續完成(cheng)鉆(zhan)、鏜、銑、鉸、攻(gong)絲等多種工(gong)(gong)(gong)(gong)序(xu)，因而大大減少了(le)工(gong)(gong)(gong)(gong)件(jian)(jian)裝(zhuang)夾時間、測量(liang)(liang)和(he)機床調整等輔助工(gong)(gong)(gong)(gong)序(xu)時間，對加(jia)工(gong)(gong)(gong)(gong)形(xing)狀比較復雜，精(jing)度(du)要求較高，品種更(geng)換頻繁的零件(jian)(jian)具(ju)有(you)良好的經濟效果(guo)。

        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(chang)家為(wei)了進一(yi)(yi)步發揮這些優點，數(shu)(shu)控機床遂向“工(gong)序集中”，即(ji)一(yi)(yi)臺(tai)數(shu)(shu)控機床在一(yi)(yi)次裝(zhuang)夾零件后能完成多工(gong)序加(jia)工(gong)的數(shu)(shu)控機床(即(ji)加(jia)工(gong)中心)方面(mian)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(批)試切(qie)完后，程序和相(xiang)關(guan)生(sheng)(sheng)產(chan)信息可(ke)保留下(xia)來，下(xia)次產(chan)品再(zai)生(sheng)(sheng)產(chan)時(shi)(shi)(shi)，只要很少的(de)準(zhun)備(bei)時(shi)(shi)(shi)間就可(ke)以(yi)開始生(sheng)(sheng)產(chan)。CNC加工(gong)(gong)中心(xin)工(gong)(gong)時(shi)(shi)(shi)包括(kuo)準(zhun)備(bei)工(gong)(gong)時(shi)(shi)(shi)和加工(gong)(gong)工(gong)(gong)時(shi)(shi)(shi)，CNC加工(gong)(gong)中心(xin)把(ba)很長的(de)單件準(zhun)備(bei)工(gong)(gong)時(shi)(shi)(shi)平均(jun)分配到(dao)每一個(ge)工(gong)(gong)件上，使每次生(sheng)(sheng)產(chan)的(de)平均(jun)實際工(gong)(gong)時(shi)(shi)(shi)減少，生(sheng)(sheng)產(chan)周(zhou)期大大縮短。

        （2）高(gao)精度工(gong)(gong)(gong)(gong)(gong)件(jian):有些工(gong)(gong)(gong)(gong)(gong)件(jian)需求甚少，但(dan)屬關(guan)鍵(jian)部件(jian)，要求精度高(gao)且工(gong)(gong)(gong)(gong)(gong)期(qi)短，用(yong)(yong)傳統(tong)工(gong)(gong)(gong)(gong)(gong)藝需用(yong)(yong)多(duo)臺機床協調工(gong)(gong)(gong)(gong)(gong)作，其周(zhou)期(qi)長、效率低，在長工(gong)(gong)(gong)(gong)(gong)序(xu)流(liu)程(cheng)中，受人(ren)為(wei)影響(xiang)容易出廢品，從而造成(cheng)重大經(jing)濟損失。而采用(yong)(yong)CNC加(jia)工(gong)(gong)(gong)(gong)(gong)中心進行(xing)加(jia)工(gong)(gong)(gong)(gong)(gong),生(sheng)產完全由程(cheng)序(xu)自動控制.避免了長工(gong)(gong)(gong)(gong)(gong)序(xu)流(liu)程(cheng),減少了硬(ying)件(jian)投(tou)資(zi)及人(ren)為(wei)干擾，具有生(sheng)產效益高(gao)及質量穩定的(de)特點(dian)。

        （3）批(pi)量(liang)生(sheng)(sheng)產(chan)(chan)(chan)的(de)(de)工(gong)(gong)件(jian)(jian):CNC加(jia)工(gong)(gong)中(zhong)(zhong)(zhong)心(xin)生(sheng)(sheng)產(chan)(chan)(chan)的(de)(de)柔(rou)性不(bu)僅體現在對特殊要求的(de)(de)快速(su)反應上，而(er)且可(ke)以(yi)快速(su)實(shi)現批(pi)量(liang)生(sheng)(sheng)產(chan)(chan)(chan)，以(yi)提高市場競爭(zheng)能(neng)力。CNC加(jia)工(gong)(gong)中(zhong)(zhong)(zhong)心(xin)適合于(yu)中(zhong)(zhong)(zhong)小(xiao)批(pi)量(liang)生(sheng)(sheng)產(chan)(chan)(chan)，特別是(shi)小(xiao)批(pi)量(liang)生(sheng)(sheng)產(chan)(chan)(chan)，在應用CNC加(jia)工(gong)(gong)中(zhong)(zhong)(zhong)心(xin)時。盡(jin)量(liang)使批(pi)量(liang)大(da)于(yu)經(jing)濟批(pi)量(liang),以(yi)達(da)到(dao)良好(hao)的(de)(de)經(jing)濟效(xiao)果。隨著CNC加(jia)工(gong)(gong)中(zhong)(zhong)(zhong)心(xin)的(de)(de)不(bu)斷發(fa)展，經(jing)濟批(pi)量(liang)越來越小(xiao)，對一(yi)些(xie)復雜(za)工(gong)(gong)件(jian)(jian)，5-10件(jian)(jian)就可(ke)以(yi)生(sheng)(sheng)產(chan)(chan)(chan)，甚至單件(jian)(jian)生(sheng)(sheng)產(chan)(chan)(chan)時也可(ke)以(yi)考(kao)慮(lv)用CNC加(jia)工(gong)(gong)中(zhong)(zhong)(zhong)心(xin)。