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五軸(zhou)CNC加(jia)工是(shi)數(shu)控機床加(jia)工的一種(zhong)模式，我們現在平時使用的加(jia)工中(zhong)(zhong)心一般都是(shi)三(san)軸(zhou)三(san)聯(lian)動(dong)的加(jia)工中(zhong)(zhong)心，三(san)軸(zhou)是(shi)指(zhi)(zhi)加(jia)工中(zhong)(zhong)心的X軸(zhou)、Y軸(zhou)和Z軸(zhou)，當然還(huan)有四軸(zhou)加(jia)工中(zhong)(zhong)心，四軸(zhou)加(jia)工中(zhong)(zhong)心指(zhi)(zhi)的是(shi)X軸(zhou)、Y軸(zhou)、Z軸(zhou)和A軸(zhou)，這里的A軸(zhou)指(zhi)(zhi)的是(shi)圍繞X軸(zhou)旋轉(zhuan)的那一個軸(zhou)。五軸(zhou)加(jia)工中(zhong)(zhong)心指(zhi)(zhi)的是(shi)除(chu)了X軸(zhou)、Y軸(zhou)、Z軸(zhou)這三(san)軸(zhou)以外還(huan)有B軸(zhou)，B軸(zhou)是(shi)指(zhi)(zhi)圍繞Y軸(zhou)的的一個旋轉(zhuan)軸(zhou)。這一技(ji)術(shu)已(yi)經在船舶、航空航天、汽車(che)、輕工、醫療等高精密儀器(qi)制作的領域(yu)廣(guang)泛應用。

1、減少加工時間

傳統(tong)(tong)模(mo)具加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)中(zhong)普遍(bian)采用(yong)三軸加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)中(zhong)心和立式加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)中(zhong)心來完(wan)成(cheng)工(gong)(gong)(gong)件(jian)的銑削加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)，隨(sui)著模(mo)具制(zhi)造加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)技術的發(fa)展(zhan)，傳統(tong)(tong)模(mo)具加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)普遍(bian)使用(yong)的球頭銑刀，雖然(ran)好(hao)處很明顯，但如應用(yong)立式加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)中(zhong)心，其底面線速則為零，光潔度也較差，這(zhe)樣傳統(tong)(tong)模(mo)具加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)的弱(ruo)點就逐漸顯現(xian)出來。而五軸加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)可(ke)以不改變工(gong)(gong)(gong)件(jian)在機床上的位置(zhi)而對工(gong)(gong)(gong)件(jian)的不同側面進行加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)，可(ke)大大提(ti)高棱(leng)柱形零件(jian)的加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)效率。

在(zai)五軸加(jia)(jia)工(gong)(gong)中(zhong)，采用平底端銑(xian)刀，對(dui)復雜的(de)(de)(de)模(mo)具加(jia)(jia)工(gong)(gong)表(biao)面(mian)(mian)保(bao)持垂直的(de)(de)(de)一種(zhong)狀態，能夠大幅減(jian)少加(jia)(jia)工(gong)(gong)的(de)(de)(de)時間。五軸加(jia)(jia)工(gong)(gong)中(zhong)心的(de)(de)(de)原(yuan)理(li)，還適用帶(dai)有角度表(biao)面(mian)(mian)的(de)(de)(de)側(ce)面(mian)(mian)銑(xian)削加(jia)(jia)工(gong)(gong)，可以(yi)消除(chu)由球端立銑(xian)刀加(jia)(jia)工(gong)(gong)導致(zhi)的(de)(de)(de)肋骨狀紋路，使得模(mo)具的(de)(de)(de)表(biao)面(mian)(mian)質(zhi)量更加(jia)(jia)理(li)想，也削減(jian)了因清理(li)模(mo)具表(biao)面(mian)(mian)需要增加(jia)(jia)人工(gong)(gong)銑(xian)削以(yi)及手(shou)工(gong)(gong)作(zuo)(zuo)業的(de)(de)(de)工(gong)(gong)作(zuo)(zuo)量。

2、生(sheng)產效率高

五軸加(jia)(jia)工(gong)(gong)中心(xin)可有效(xiao)地減(jian)少零件的(de)加(jia)(jia)工(gong)(gong)時間和輔助時間，五軸聯動(dong)(dong)加(jia)(jia)工(gong)(gong)中心(xin)的(de)主軸轉速和進給量的(de)范(fan)圍大，允許機(ji)床進行大切(qie)削量的(de)強力切(qie)削，五軸聯動(dong)(dong)加(jia)(jia)工(gong)(gong)中心(xin)目前正進入高(gao)速加(jia)(jia)工(gong)(gong)時代(dai)，五軸聯動(dong)(dong)加(jia)(jia)工(gong)(gong)中心(xin)移動(dong)(dong)部件的(de)快速移動(dong)(dong)和定位及高(gao)速切(qie)削加(jia)(jia)工(gong)(gong)，減(jian)少了半成品(pin)的(de)工(gong)(gong)序間周轉時間，提高(gao)了生產效(xiao)率。

3、提(ti)高加工精度

通過五軸加(jia)(jia)工(gong)技術，使工(gong)件(jian)(jian)在復(fu)雜角度再(zai)次(ci)(ci)定(ding)位需(xu)要(yao)進行多次(ci)(ci)的(de)(de)(de)調(diao)試裝(zhuang)卡的(de)(de)(de)問題得以解決，不(bu)僅(jin)(jin)僅(jin)(jin)使時間縮短了，其中所產生的(de)(de)(de)誤(wu)差也(ye)大大降低，在安裝(zhuang)工(gong)件(jian)(jian)時需(xu)要(yao)的(de)(de)(de)工(gong)裝(zhuang)夾具的(de)(de)(de)大額(e)費用(yong)也(ye)得到(dao)(dao)了節約(yue)，而機床也(ye)做到(dao)(dao)了對復(fu)雜零件(jian)(jian)的(de)(de)(de)加(jia)(jia)工(gong)，例(li)如復(fu)雜表(biao)面所需(xu)的(de)(de)(de)鉆孔、錐度加(jia)(jia)工(gong)、型腔隱窩(wo)等，都是傳統方(fang)法做不(bu)到(dao)(dao)的(de)(de)(de)。