機加工車間可采用CAD/CAM（計算機輔助設計計算機輔助制造）系統對數控機床自動編程。零件的幾何形狀從CAD系統自動轉換到CAM系統，機械工人在虛擬的顯 示屏上選擇各種加工方法。當機械工人選定某種加工方法后，CAD/CAM系統可以自動輸出CNC代碼，通常是指G代碼，并把代碼輸入到數控機床的控制器中 以進行實際的加工操作。

數控加工(CNC)是指機械工(gong)(gong)(gong)人運(yun)用(yong)數(shu)(shu)控設(she)備(bei)來(lai)(lai)進行加(jia)工(gong)(gong)(gong)，這些數(shu)(shu)控設(she)備(bei)包(bao)括加(jia)工(gong)(gong)(gong)中(zhong)(zhong)(zhong)心、車銑中(zhong)(zhong)(zhong)心、電(dian)火花線切割設(she)備(bei)、螺紋切削機等。絕大(da)多(duo)數(shu)(shu)的機加(jia)工(gong)(gong)(gong)車間都采(cai)用(yong)數(shu)(shu)控加(jia)工(gong)(gong)(gong)技術。通(tong)過(guo)編程，把工(gong)(gong)(gong)件(jian)在笛卡爾坐標系中(zhong)(zhong)(zhong)的位(wei)置坐標(X，Y，Z)轉換(huan)成程序語言(yan)，數(shu)(shu)控機床的CNC控制器通(tong)過(guo)識別和(he)解釋程序語言(yan)來(lai)(lai)控制數(shu)(shu)控機床的軸，自動按要求去除材料，從而(er)得到精加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)件(jian)。數(shu)(shu)控加(jia)工(gong)(gong)(gong)以連續的方式(shi)來(lai)(lai)加(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)件(jian)，適合于大(da)批量、形狀復雜的零件(jian)。

工廠后(hou)方設備(bei)(bei)，如金屬切削機(ji)床（包括(kuo)車、銑、刨(bao)、插等設備(bei)(bei)），如果生產(chan)所需(xu)的(de)設備(bei)(bei)的(de)零件壞了，需(xu)要維(wei)(wei)修，這樣就需(xu)要送到機(ji)加車間維(wei)(wei)修或加工。為了保證生產(chan)的(de)順利進行，一般的(de)企業都設用機(ji)加工車間，主要負責生產(chan)設備(bei)(bei)的(de)維(wei)(wei)修。

機械加工主(zhu)要有手(shou)(shou)動(dong)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)和(he)數(shu)(shu)控(kong)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)兩大類。手(shou)(shou)動(dong)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)是(shi)指(zhi)通(tong)(tong)過(guo)機(ji)械工(gong)(gong)(gong)(gong)人(ren)手(shou)(shou)工(gong)(gong)(gong)(gong)操作(zuo)銑床(chuang)(chuang)、車床(chuang)(chuang)、鉆床(chuang)(chuang)和(he)鋸床(chuang)(chuang)等機(ji)械設備(bei)來實現(xian)對各(ge)種材料進(jin)行加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的方(fang)法。手(shou)(shou)動(dong)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)適(shi)合進(jin)行小批量(liang)、簡單的零件生產。 數(shu)(shu)控(kong)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)（CNC）是(shi)指(zhi)機(ji)械工(gong)(gong)(gong)(gong)人(ren)運用數(shu)(shu)控(kong)設備(bei)來進(jin)行加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)，這些數(shu)(shu)控(kong)設備(bei)包括加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)中心、車銑中心、電(dian)火(huo)花線切割設備(bei)、螺(luo)紋切削機(ji)等。絕大多數(shu)(shu)的機(ji)加(jia)(jia)(jia)(jia) 工(gong)(gong)(gong)(gong)車間都采用數(shu)(shu)控(kong)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)技術(shu)。通(tong)(tong)過(guo)編程，把工(gong)(gong)(gong)(gong)件在(zai)笛卡爾坐標系中的位置坐標（X，Y，Z）

轉換成(cheng)程序語言，數(shu)控(kong)機床(chuang)的(de)(de)CNC控(kong)制(zhi)(zhi)器通(tong)過識(shi)別和解釋(shi)程序語言來 控(kong)制(zhi)(zhi)數(shu)控(kong)機床(chuang)的(de)(de)軸，自(zi)動(dong)按要求去除材料，從(cong)而得到(dao)精加(jia)工工件。數(shu)控(kong)加(jia)工以連續的(de)(de)方式來加(jia)工工件，適合于(yu)大批量、形狀復(fu)雜的(de)(de)零件。

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