cnc四軸加(jia)工(gong)特點都有哪些？數控車床、車削中心，是一(yi)種(zhong)高精度、高效(xiao)率的(de)自動(dong)化機床。配備多(duo)工(gong)位刀塔或動(dong)力刀塔，機床就具有廣泛(fan)的(de)加(jia)工(gong)工(gong)藝性(xing)能，可加(jia)工(gong)直(zhi)線(xian)(xian)圓柱(zhu)、斜(xie)線(xian)(xian)圓柱(zhu)、圓弧(hu)(hu)和(he)各種(zhong)螺紋、槽(cao)、蝸桿(gan)等復(fu)雜(za)工(gong)件，具有直(zhi)線(xian)(xian)插補、圓弧(hu)(hu)插補各種(zhong)補償(chang)功能，并在復(fu)雜(za)零件的(de)批(pi)量生產中發揮了良好(hao)的(de)經濟效(xiao)果。那么(me)就和(he)我們世紀鼎盛(sheng)小(xiao)編今(jin)天來了解一(yi)下(xia)cnc四軸加(jia)工(gong)：

四軸cnc加工的(de)(de)環(huan)境溫(wen)度(du)低于30攝示度(du)，相對溫(wen)度(du)小于80%。一(yi)般(ban)來說(shuo)，數控電控箱內部(bu)設有(you)排(pai)風扇或冷(leng)風機，以保持電子元件(jian)，特別是中央處理器工作溫(wen)度(du)恒定或溫(wen)度(du)差變化(hua)很小。過高(gao)的(de)(de)溫(wen)度(du)和濕度(du)將導致控制(zhi)系統元件(jian)壽命降低，并導致故障增多(duo)。溫(wen)度(du)和濕度(du)的(de)(de)增高(gao)，灰塵增多(duo)會在集成電路(lu)板(ban)產(chan)生粘結，并導致短路(lu)。

數控銑(xian)床銑(xian)頭(tou)(tou)部分(fen)由有級(ji)(或無級(ji))變速(su)(su)箱和(he)銑(xian)頭(tou)(tou)兩個部件組成(cheng)。銑(xian)頭(tou)(tou)主軸(zhou)支承在高精度軸(zhou)承上．保證主軸(zhou)具有高回轉(zhuan)精度和(he)良(liang)好的剛性(xing)；主軸(zhou)裝有快速(su)(su)換刀(dao)螺母(mu)，前端錐(zhui)(zhui)采用105錐(zhui)(zhui)度；主軸(zhou)采用機(ji)械無級(ji)變速(su)(su)，其調節(jie)范圍(wei)寬，傳動(dong)(dong)平穩，操(cao)作(zuo)方便(bian)。剎(cha)車機(ji)構能使(shi)主軸(zhou)迅速(su)(su)制動(dong)(dong)，可節(jie)省(sheng)輔助時間，剎(cha)車時通過制動(dong)(dong)手柄(bing)撐開止動(dong)(dong)環使(shi)主軸(zhou)立即制動(dong)(dong)。啟動(dong)(dong)主電(dian)(dian)動(dong)(dong)機(ji)時，應注意松開主軸(zhou)制動(dong)(dong)手柄(bing)。銑(xian)頭(tou)(tou)部件還(huan)裝有伺服電(dian)(dian)機(ji)、內齒(chi)帶輪、滾(gun)珠絲杠(gang)副及主軸(zhou)套(tao)簡，它們形成(cheng)垂直方向(z方向)進給傳動(dong)(dong)鏈，使(shi)主軸(zhou)作(zuo)垂向直線運動(dong)(dong)。

四軸(zhou)cnc加(jia)工的(de)(de)(de)工作(zuo)原理(li)：利用(yong)壓(ya)縮空氣(qi)在(zai)管道內的(de)(de)(de)流動(dong)(dong)，帶動(dong)(dong)潤滑(hua)油(you)(you)(you)(you)(you)沿管道內壁(bi)(bi)連續不斷(duan)的(de)(de)(de)流動(dong)(dong)，將油(you)(you)(you)(you)(you)氣(qi)混(hun)合(he)并(bing)輸送至(zhi)四軸(zhou)cnc加(jia)工主軸(zhou)部分及絲杠(gang)等其他需要(yao)潤滑(hua)部位(wei)。干燥(zao)的(de)(de)(de)壓(ya)縮空氣(qi)以恒定的(de)(de)(de)壓(ya)力(li)/(5—8BAR/)連續供(gong)(gong)給，而(er)潤滑(hua)油(you)(you)(you)(you)(you)是根據(ju)主軸(zhou)潤滑(hua)、絲杠(gang)潤滑(hua)或其他部位(wei)耗油(you)(you)(you)(you)(you)量的(de)(de)(de)不同定量供(gong)(gong)給。因(yin)此每個潤滑(hua)回路都必須使用(yong)單獨微型油(you)(you)(you)(you)(you)泵作(zuo)為輸油(you)(you)(you)(you)(you)的(de)(de)(de)動(dong)(dong)力(li)源，油(you)(you)(you)(you)(you)從泵出來后必須先進入油(you)(you)(you)(you)(you)氣(qi)混(hun)合(he)閥，在(zai)油(you)(you)(you)(you)(you)氣(qi)混(hun)合(he)閥里，流動(dong)(dong)的(de)(de)(de)壓(ya)縮空氣(qi)把油(you)(you)(you)(you)(you)吹成(cheng)(cheng)細小的(de)(de)(de)油(you)(you)(you)(you)(you)滴，附著在(zai)管壁(bi)(bi)上(shang)形成(cheng)(cheng)油(you)(you)(you)(you)(you)膜(mo)，油(you)(you)(you)(you)(you)膜(mo)隨著氣(qi)流的(de)(de)(de)方向沿管壁(bi)(bi)流動(dong)(dong)，在(zai)流動(dong)(dong)過程中油(you)(you)(you)(you)(you)膜(mo)的(de)(de)(de)厚度逐(zhu)漸減薄，但并(bing)不凝聚。

機(ji)床規格的(de)(de)選(xuan)(xuan)定根(gen)據確定的(de)(de)加工(gong)(gong)(gong)工(gong)(gong)(gong)件(jian)(jian)的(de)(de)大小尺(chi)寸,相應(ying)確定所(suo)需機(ji)床的(de)(de)工(gong)(gong)(gong)作(zuo)臺尺(chi)寸和三個直(zhi)線坐(zuo)標(biao)(biao)系的(de)(de)行(xing)程(cheng)。金屬(shu)加工(gong)(gong)(gong)微(wei)信,內(nei)容不(bu)錯(cuo),值得關注(zhu)。工(gong)(gong)(gong)作(zuo)臺尺(chi)寸應(ying)保證工(gong)(gong)(gong)件(jian)(jian)在其上面(mian)能(neng)順利裝夾工(gong)(gong)(gong)件(jian)(jian),加工(gong)(gong)(gong)尺(chi)寸則必須在各坐(zuo)標(biao)(biao)行(xing)程(cheng)內(nei),此外還要(yao)考慮換刀空(kong)間和各坐(zuo)標(biao)(biao)干涉區的(de)(de)限制。 機(ji)床精(jing)(jing)度(du)(du)的(de)(de)選(xuan)(xuan)定用(yong)戶根(gen)據工(gong)(gong)(gong)件(jian)(jian)的(de)(de)加工(gong)(gong)(gong)精(jing)(jing)度(du)(du)要(yao)求,選(xuan)(xuan)用(yong)相應(ying)精(jing)(jing)度(du)(du)等(deng)級的(de)(de)機(ji)床,批量生產的(de)(de)零(ling)件(jian)(jian),實(shi)際加工(gong)(gong)(gong)出(chu)的(de)(de)精(jing)(jing)度(du)(du)數值可(ke)能(neng)是定位精(jing)(jing)度(du)(du)的(de)(de)倍。普通型(xing)(xing)機(ji)床批量加工(gong)(gong)(gong)8級精(jing)(jing)度(du)(du)工(gong)(gong)(gong)件(jian)(jian),精(jing)(jing)密(mi)機(ji)床加工(gong)(gong)(gong)精(jing)(jing)度(du)(du)可(ke)達5-6級,但要(yao)有恒溫等(deng)工(gong)(gong)(gong)藝條件(jian)(jian),所(suo)以精(jing)(jing)密(mi)型(xing)(xing)機(ji)床使(shi)用(yong)嚴格,價格高(gao)。