金昌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(chuang)。加(jia)工(gong)(gong)(gong)中心是高度(du)機(ji)電一體化的(de)產品(pin)，工(gong)(gong)(gong)件(jian)裝夾(jia)后，數控(kong)系統能控(kong)制機(ji)床(chuang)按不同工(gong)(gong)(gong)序自動(dong)選擇(ze)、更(geng)換刀具(ju)、自動(dong)對刀、自動(dong)改變主(zhu)軸轉速(su)、進(jin)給量等(deng)(deng)，可連續完成鉆、鏜(tang)、銑(xian)、鉸、攻(gong)絲等(deng)(deng)多種(zhong)工(gong)(gong)(gong)序，因(yin)而(er)大大減少了工(gong)(gong)(gong)件(jian)裝夾(jia)時間、測量和機(ji)床(chuang)調整(zheng)等(deng)(deng)輔助(zhu)工(gong)(gong)(gong)序時間，對加(jia)工(gong)(gong)(gong)形狀比較復雜(za)，精度(du)要(yao)求較高，品(pin)種(zhong)更(geng)換頻繁的(de)零件(jian)具(ju)有良好的(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(chang)家為(wei)了進一(yi)步發揮這些優點，數控機(ji)床遂向(xiang)“工序集中”，即(ji)一(yi)臺(tai)數控機(ji)床在一(yi)次裝(zhuang)夾(jia)零件后能完成多工序加工的(de)數控機(ji)床(即(ji)加工中心)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，首件(批(pi))試切(qie)完(wan)后，程序和相關生產(chan)(chan)信息可保(bao)留下來，下次(ci)產(chan)(chan)品再生產(chan)(chan)時(shi)，只(zhi)要很(hen)少的(de)準(zhun)備(bei)(bei)時(shi)間(jian)就可以(yi)開(kai)始生產(chan)(chan)。CNC加(jia)(jia)工(gong)(gong)(gong)中(zhong)心工(gong)(gong)(gong)時(shi)包括準(zhun)備(bei)(bei)工(gong)(gong)(gong)時(shi)和加(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)時(shi)，CNC加(jia)(jia)工(gong)(gong)(gong)中(zhong)心把很(hen)長(chang)的(de)單(dan)件準(zhun)備(bei)(bei)工(gong)(gong)(gong)時(shi)平均分配到(dao)每一(yi)個工(gong)(gong)(gong)件上，使每次(ci)生產(chan)(chan)的(de)平均實(shi)際工(gong)(gong)(gong)時(shi)減(jian)少，生產(chan)(chan)周期大大縮短(duan)。

        （2）高精度工(gong)(gong)(gong)件(jian):有些(xie)工(gong)(gong)(gong)件(jian)需(xu)求甚少(shao)，但屬關鍵部件(jian)，要求精度高且工(gong)(gong)(gong)期短，用傳(chuan)統(tong)工(gong)(gong)(gong)藝需(xu)用多臺(tai)機床(chuang)協調工(gong)(gong)(gong)作，其周期長、效(xiao)率低，在長工(gong)(gong)(gong)序(xu)流(liu)程(cheng)中，受人為(wei)影響容(rong)易出廢品，從而造(zao)成重(zhong)大經濟損(sun)失。而采用CNC加(jia)工(gong)(gong)(gong)中心進行加(jia)工(gong)(gong)(gong),生(sheng)產完(wan)全由程(cheng)序(xu)自動控(kong)制.避免了長工(gong)(gong)(gong)序(xu)流(liu)程(cheng),減少(shao)了硬件(jian)投資(zi)及人為(wei)干(gan)擾，具有生(sheng)產效(xiao)益高及質量穩定的(de)特點。

        （3）批(pi)量生(sheng)(sheng)產(chan)的(de)(de)工(gong)件:CNC加(jia)工(gong)中(zhong)心(xin)(xin)生(sheng)(sheng)產(chan)的(de)(de)柔性不(bu)僅體現在對特殊要求(qiu)的(de)(de)快(kuai)速反應(ying)(ying)上，而且可(ke)以(yi)(yi)快(kuai)速實現批(pi)量生(sheng)(sheng)產(chan)，以(yi)(yi)提高市(shi)場競爭能(neng)力。CNC加(jia)工(gong)中(zhong)心(xin)(xin)適合于中(zhong)小(xiao)批(pi)量生(sheng)(sheng)產(chan)，特別是小(xiao)批(pi)量生(sheng)(sheng)產(chan)，在應(ying)(ying)用(yong)CNC加(jia)工(gong)中(zhong)心(xin)(xin)時(shi)。盡量使批(pi)量大于經濟(ji)批(pi)量,以(yi)(yi)達(da)到良好(hao)的(de)(de)經濟(ji)效果。隨著(zhu)CNC加(jia)工(gong)中(zhong)心(xin)(xin)的(de)(de)不(bu)斷發(fa)展，經濟(ji)批(pi)量越(yue)來越(yue)小(xiao)，對一些復雜工(gong)件，5-10件就可(ke)以(yi)(yi)生(sheng)(sheng)產(chan)，甚至單件生(sheng)(sheng)產(chan)時(shi)也(ye)可(ke)以(yi)(yi)考(kao)慮用(yong)CNC加(jia)工(gong)中(zhong)心(xin)(xin)。