南通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(chuang)。加(jia)工(gong)中心是高度(du)機(ji)電一體化(hua)的(de)(de)產品，工(gong)件裝夾(jia)后，數控系(xi)統能控制機(ji)床(chuang)按不同工(gong)序(xu)自動選擇、更(geng)換刀具、自動對(dui)刀、自動改變主(zhu)軸轉速、進給量等，可連續完成鉆、鏜、銑(xian)、鉸、攻絲(si)等多(duo)種(zhong)工(gong)序(xu)，因而大大減少了工(gong)件裝夾(jia)時(shi)間、測量和(he)機(ji)床(chuang)調整等輔助(zhu)工(gong)序(xu)時(shi)間，對(dui)加(jia)工(gong)形狀比較復雜(za)，精(jing)度(du)要求較高，品種(zhong)更(geng)換頻繁的(de)(de)零件具有(you)良好的(de)(de)經(jing)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零件加工中心廠家為了進一(yi)步發揮這些優點，數控(kong)機床遂向“工(gong)序集中”，即(ji)一(yi)臺數控(kong)機床在一(yi)次裝夾零件后(hou)能完成(cheng)多工(gong)序加(jia)工(gong)的數控(kong)機床(即(ji)加(jia)工(gong)中心)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(jian)(批)試切(qie)完后，程序和相關生產(chan)信息可(ke)保留下(xia)來(lai)，下(xia)次產(chan)品再生產(chan)時(shi)，只要很少(shao)的準(zhun)備(bei)(bei)時(shi)間就可(ke)以開始生產(chan)。CNC加工(gong)(gong)(gong)中心(xin)工(gong)(gong)(gong)時(shi)包括準(zhun)備(bei)(bei)工(gong)(gong)(gong)時(shi)和加工(gong)(gong)(gong)工(gong)(gong)(gong)時(shi)，CNC加工(gong)(gong)(gong)中心(xin)把很長的單(dan)件(jian)準(zhun)備(bei)(bei)工(gong)(gong)(gong)時(shi)平(ping)均分配到每一個工(gong)(gong)(gong)件(jian)上，使每次生產(chan)的平(ping)均實際工(gong)(gong)(gong)時(shi)減少(shao)，生產(chan)周期大大縮短。

        （2）高精度工(gong)(gong)(gong)(gong)(gong)件:有些工(gong)(gong)(gong)(gong)(gong)件需求(qiu)甚少，但屬關鍵部件，要求(qiu)精度高且工(gong)(gong)(gong)(gong)(gong)期(qi)短，用傳統工(gong)(gong)(gong)(gong)(gong)藝需用多臺機床協(xie)調(diao)工(gong)(gong)(gong)(gong)(gong)作，其周期(qi)長(chang)、效率低，在長(chang)工(gong)(gong)(gong)(gong)(gong)序流程中(zhong)，受人為影響容易出(chu)廢(fei)品，從而(er)造成重大經濟損失。而(er)采用CNC加工(gong)(gong)(gong)(gong)(gong)中(zhong)心進行加工(gong)(gong)(gong)(gong)(gong),生(sheng)產完全(quan)由(you)程序自動控制.避免了長(chang)工(gong)(gong)(gong)(gong)(gong)序流程,減少了硬件投(tou)資(zi)及人為干(gan)擾，具(ju)有生(sheng)產效益高及質量穩(wen)定的特(te)點。

        （3）批(pi)(pi)(pi)(pi)量(liang)生(sheng)(sheng)(sheng)產(chan)的(de)(de)工(gong)(gong)(gong)(gong)件(jian):CNC加(jia)(jia)工(gong)(gong)(gong)(gong)中(zhong)心(xin)生(sheng)(sheng)(sheng)產(chan)的(de)(de)柔性不僅體(ti)現(xian)在(zai)對(dui)特殊要求(qiu)的(de)(de)快速(su)反應上，而(er)且可以(yi)快速(su)實現(xian)批(pi)(pi)(pi)(pi)量(liang)生(sheng)(sheng)(sheng)產(chan)，以(yi)提高市場競爭能力。CNC加(jia)(jia)工(gong)(gong)(gong)(gong)中(zhong)心(xin)適合于中(zhong)小(xiao)批(pi)(pi)(pi)(pi)量(liang)生(sheng)(sheng)(sheng)產(chan)，特別(bie)是小(xiao)批(pi)(pi)(pi)(pi)量(liang)生(sheng)(sheng)(sheng)產(chan)，在(zai)應用CNC加(jia)(jia)工(gong)(gong)(gong)(gong)中(zhong)心(xin)時。盡量(liang)使(shi)批(pi)(pi)(pi)(pi)量(liang)大于經濟批(pi)(pi)(pi)(pi)量(liang),以(yi)達到良好的(de)(de)經濟效果。隨著CNC加(jia)(jia)工(gong)(gong)(gong)(gong)中(zhong)心(xin)的(de)(de)不斷發展，經濟批(pi)(pi)(pi)(pi)量(liang)越(yue)來越(yue)小(xiao)，對(dui)一些(xie)復雜工(gong)(gong)(gong)(gong)件(jian)，5-10件(jian)就(jiu)可以(yi)生(sheng)(sheng)(sheng)產(chan)，甚(shen)至單(dan)件(jian)生(sheng)(sheng)(sheng)產(chan)時也可以(yi)考慮用CNC加(jia)(jia)工(gong)(gong)(gong)(gong)中(zhong)心(xin)。