忻州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)。加工(gong)中心(xin)是(shi)高度機(ji)電一體化的產品(pin)，工(gong)件裝(zhuang)夾(jia)后，數控系統(tong)能控制機(ji)床(chuang)按不同工(gong)序(xu)自動(dong)選擇、更(geng)換刀(dao)具(ju)、自動(dong)對刀(dao)、自動(dong)改變主軸轉速、進給量等(deng)，可連續完成鉆、鏜(tang)、銑(xian)、鉸、攻絲(si)等(deng)多種工(gong)序(xu)，因而大(da)大(da)減少(shao)了工(gong)件裝(zhuang)夾(jia)時(shi)間(jian)、測量和機(ji)床(chuang)調(diao)整等(deng)輔助工(gong)序(xu)時(shi)間(jian)，對加工(gong)形(xing)狀比較復雜，精度要求(qiu)較高，品(pin)種更(geng)換頻(pin)繁(fan)的零(ling)件具(ju)有良好的經(jing)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零件加工中心廠家為(wei)了進一(yi)(yi)步發揮這些優(you)點，數控(kong)(kong)機(ji)床遂向“工(gong)(gong)序(xu)集中(zhong)”，即(ji)一(yi)(yi)臺數控(kong)(kong)機(ji)床在一(yi)(yi)次(ci)裝夾零件(jian)后能完成多(duo)工(gong)(gong)序(xu)加(jia)工(gong)(gong)的(de)數控(kong)(kong)機(ji)床(即(ji)加(jia)工(gong)(gong)中(zhong)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)試切完(wan)后，程序和(he)相關生(sheng)(sheng)產(chan)(chan)信息可(ke)保留下來，下次產(chan)(chan)品再生(sheng)(sheng)產(chan)(chan)時(shi)，只要很(hen)少(shao)(shao)的(de)準備時(shi)間就可(ke)以開(kai)始生(sheng)(sheng)產(chan)(chan)。CNC加工(gong)(gong)(gong)(gong)中心工(gong)(gong)(gong)(gong)時(shi)包括準備工(gong)(gong)(gong)(gong)時(shi)和(he)加工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)時(shi)，CNC加工(gong)(gong)(gong)(gong)中心把很(hen)長的(de)單件(jian)準備工(gong)(gong)(gong)(gong)時(shi)平均(jun)分配到每(mei)一個(ge)工(gong)(gong)(gong)(gong)件(jian)上，使每(mei)次生(sheng)(sheng)產(chan)(chan)的(de)平均(jun)實際工(gong)(gong)(gong)(gong)時(shi)減少(shao)(shao)，生(sheng)(sheng)產(chan)(chan)周期大大縮短。

        （2）高(gao)精度(du)工(gong)(gong)(gong)件(jian)(jian):有些工(gong)(gong)(gong)件(jian)(jian)需求(qiu)甚少(shao)，但(dan)屬(shu)關鍵部(bu)件(jian)(jian)，要求(qiu)精度(du)高(gao)且(qie)工(gong)(gong)(gong)期短，用(yong)傳統工(gong)(gong)(gong)藝需用(yong)多臺機(ji)床協調(diao)工(gong)(gong)(gong)作，其(qi)周(zhou)期長、效率低(di)，在長工(gong)(gong)(gong)序(xu)流程中，受人為影響容易出(chu)廢品，從(cong)而造(zao)成重大經(jing)濟損(sun)失。而采用(yong)CNC加工(gong)(gong)(gong)中心進(jin)行加工(gong)(gong)(gong),生產完全由程序(xu)自動控制.避免了長工(gong)(gong)(gong)序(xu)流程,減少(shao)了硬件(jian)(jian)投資及(ji)人為干擾，具有生產效益高(gao)及(ji)質量穩定的(de)特(te)點(dian)。

        （3）批(pi)(pi)量(liang)(liang)生(sheng)(sheng)產(chan)(chan)的(de)工(gong)件(jian):CNC加(jia)工(gong)中(zhong)(zhong)心(xin)生(sheng)(sheng)產(chan)(chan)的(de)柔性(xing)不僅體現在對(dui)特殊要求(qiu)的(de)快(kuai)速反應(ying)上，而且可(ke)以(yi)快(kuai)速實現批(pi)(pi)量(liang)(liang)生(sheng)(sheng)產(chan)(chan)，以(yi)提高(gao)市場競爭能力(li)。CNC加(jia)工(gong)中(zhong)(zhong)心(xin)適(shi)合于中(zhong)(zhong)小(xiao)批(pi)(pi)量(liang)(liang)生(sheng)(sheng)產(chan)(chan)，特別是小(xiao)批(pi)(pi)量(liang)(liang)生(sheng)(sheng)產(chan)(chan)，在應(ying)用CNC加(jia)工(gong)中(zhong)(zhong)心(xin)時(shi)。盡量(liang)(liang)使批(pi)(pi)量(liang)(liang)大于經濟批(pi)(pi)量(liang)(liang),以(yi)達到良好的(de)經濟效果。隨著CNC加(jia)工(gong)中(zhong)(zhong)心(xin)的(de)不斷發展，經濟批(pi)(pi)量(liang)(liang)越(yue)來(lai)越(yue)小(xiao)，對(dui)一些復(fu)雜工(gong)件(jian)，5-10件(jian)就可(ke)以(yi)生(sheng)(sheng)產(chan)(chan)，甚至單(dan)件(jian)生(sheng)(sheng)產(chan)(chan)時(shi)也(ye)可(ke)以(yi)考慮用CNC加(jia)工(gong)中(zhong)(zhong)心(xin)。