機(ji)床適用(yong)于高(gao)速銅公加工,石(shi)磨加工,精雕等(deng)
加工(gong)(gong)中(zhong)心具有(you)(you)數控系統、檢測裝(zhuang)置(zhi)、驅動裝(zhuang)置(zhi)、機床傳動鏈、伺服電動機五大要素,帶有(you)(you)刀(dao)庫(ku)和自(zi)動換刀(dao)裝(zhuang)置(zhi),它將數控銑床、數控鏜床、數控鉆床的功(gong)能組合在一起,功(gong)能強(qiang)大,近(jin)幾年又出現(xian)了許多車削加工(gong)(gong)中(zhong)心,幾乎可完成(cheng)回轉(zhuan)體零件的所(suo)有(you)(you)加工(gong)(gong)工(gong)(gong)序。
CNC立式加工中心主要有主軸箱,換到裝置(機械手),刀庫,工作臺,其他的和普通機床都有,他的加工自由度要看他是幾軸聯動的哈,不過一般都是兩軸半聯動,可以加工5個自由度,立式加工中心主要(yao)(yao)加(jia)工(gong)(gong)(gong)平面(mian),曲(qu)面(mian)箱(xiang)體(ti)類零件(jian)(jian)(jian)。還可以用(yong)來加(jia)工(gong)(gong)(gong)普通車(che)床(chuang)難加(jia)工(gong)(gong)(gong)的(de)(de),精度要(yao)(yao)求高的(de)(de)零件(jian)(jian)(jian),也(ye)可以加(jia)工(gong)(gong)(gong)復雜(za)的(de)(de)、用(yong)數學模型描(miao)畫(hua)的(de)(de)空間曲(qu)線和曲(qu)面(mian),這主要(yao)(yao)、要(yao)(yao)看具體(ti)的(de)(de)加(jia)工(gong)(gong)(gong)零件(jian)(jian)(jian)的(de)(de)要(yao)(yao)求和加(jia)工(gong)(gong)(gong)環(huan)境(jing)。
CNC立式加工中心(xin)應該如何選擇:
一(yi)、加(jia)工(gong)(gong)中心(xin)主要規格(ge)的(de)(de)尺寸應與(yu)工(gong)(gong)件(jian)的(de)(de)輪廓(kuo)尺寸相(xiang)適應。即(ji)小的(de)(de)工(gong)(gong)件(jian)應當選擇小規格(ge)的(de)(de)機床加(jia)工(gong)(gong),而大的(de)(de)工(gong)(gong)件(jian)則選擇大規格(ge)的(de)(de)機床加(jia)工(gong)(gong),做到設備的(de)(de)合理使(shi)用。
二、加(jia)工中心(xin)結構(gou)取決于(yu)機床規格尺(chi)寸、加(jia)工工件的(de)(de)重量(liang)等因素的(de)(de)影響。下表列出了數控設備Z常(chang)見(jian)的(de)(de)重要規格和性能指標(biao)。
三、加(jia)(jia)工(gong)(gong)(gong)(gong)中心的工(gong)(gong)(gong)(gong)作(zuo)精(jing)(jing)度(du)與工(gong)(gong)(gong)(gong)序要(yao)求(qiu)(qiu)的加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)相(xiang)適應。根據零件(jian)的加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)要(yao)求(qiu)(qiu)選擇機(ji)床(chuang)(chuang),如精(jing)(jing)度(du)要(yao)求(qiu)(qiu)低的粗加(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)序,應選擇精(jing)(jing)度(du)低的機(ji)床(chuang)(chuang),精(jing)(jing)度(du)要(yao)求(qiu)(qiu)高(gao)的精(jing)(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)序,應選用精(jing)(jing)度(du)高(gao)的機(ji)床(chuang)(chuang)。
四、機床的功(gong)率與(yu)剛(gang)度(du)以及機動范圍應(ying)與(yu)工(gong)(gong)序的性質(zhi)和Z合適的切削用(yong)量(liang)相適應(ying)。如(ru)粗加工(gong)(gong)工(gong)(gong)序去除的毛坯余量(liang)大(da),切削余量(liang)選得大(da),就要求機床有大(da)的功(gong)率和較好的剛(gang)度(du)。
五、裝夾方便、夾具結構簡單也是選擇數控設備是需要考慮的一個因素。選擇采用臥式數控機床,還是選(xuan)擇(ze)立(li)式數(shu)控機床,將直接影響所選(xuan)擇(ze)的(de)(de)(de)夾具的(de)(de)(de)結構和(he)加工坐標系(xi)(xi),直接關系(xi)(xi)到數(shu)控編程(cheng)(cheng)的(de)(de)(de)難易(yi)程(cheng)(cheng)度和(he)數(shu)控加工的(de)(de)(de)可靠性。
CNC零件加工中心廠(chang)家(jia)談(tan)談(tan)應當注(zhu)重的(de)是,在選擇數控(kong)機(ji)床時(shi)應充分(fen)利用數控(kong)設備的(de)功(gong)能(neng),根(gen)據需要進行合(he)理的(de)開(kai)發,以(yi)擴大(da)數控(kong)機(ji)床的(de)功(gong)能(neng),滿足產品的(de)需要。然后,根(gen)據所選擇的(de)數控(kong)機(ji)床,進一(yi)步(bu)優(you)化數控(kong)加工方案和工藝路線(xian),根(gen)據需要適當調整(zheng)工序的(de)內容。
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