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數控電火花慢走絲線切割機床操作

數控電火花慢走絲線切割機床操作

本(ben)項目主要講解(jie)數(shu)控電火花慢(man)(man)走絲(si)線切(qie)割(ge)機床(chuang)(chuang)操(cao)作(zuo)(zuo)面板上各個按鍵的功用,使(shi)(shi)學(xue)生(sheng)掌握數(shu)控電火花慢(man)(man)走絲(si)線切(qie)割(ge)機床(chuang)(chuang)的調整及(ji)加工前的準備工作(zuo)(zuo)以(yi)及(ji)程序輸入(ru)及(ji)修改方法。最后以(yi)一個具體(ti)零件為例,講解(jie)了(le)數(shu)控電火花慢(man)(man)走絲(si)線切(qie)割(ge)機床(chuang)(chuang)加工零件的基(ji)本(ben)操(cao)作(zuo)(zuo)過(guo)程,使(shi)(shi)學(xue)生(sheng)對數(shu)控電火花慢(man)(man)走絲(si)線切(qie)割(ge)機床(chuang)(chuang)的操(cao)作(zuo)(zuo)有一個清楚的認(ren)識(shi)。

 

項目一

機床(chuang)操作(zuo)(zuo)(zuo)面板及(ji)其(qi)功能(neng)應用 數控(kong)電火花慢走絲(si)(si)線切割(ge)機床(chuang)的操作(zuo)(zuo)(zuo)面板也包括控(kong)制面板和手控(kong)盒面板,與快走絲(si)(si)線切割(ge)機床(chuang)大(da)同(tong)小異。但因電極絲(si)(si)單向運行,無儲(chu)(chu)絲(si)(si)筒,不再設儲(chu)(chu)絲(si)(si)筒操作(zuo)(zuo)(zuo)面板。

 

項目二

開機 開機步驟(zou)如(ru)下: 1、合上(shang)總(zong)電(dian)源開關。 2、按下控(kong)制面板上(shang)的(de)按鈕,啟動(dong)數控(kong)系(xi)統及機床(chuang)。

 

項目三(san)

電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)安裝 參(can)見 圖 1 所示穿絲(si)(si)路線,牽引 供絲(si)(si)繞線軸上成卷(juan)電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)的絲(si)(si)頭依次穿過(guo)壓緊卷(juan)筒、滾筒、導輪、恒張(zhang)力控(kong)制(zhi)輪、上部電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)導向(xiang)(xiang)器、工(gong)件(jian)、下(xia)部電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)導向(xiang)(xiang)器至(zhi)拉絲(si)(si)卷(juan)筒。在一定范圍內調節好(hao)伺服電(dian)(dian)(dian)(dian)機恒張(zhang)力控(kong)制(zhi)裝置,使(shi)電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)保持一定的張(zhang)力,穩(wen)定地(di)運行。 慢走絲(si)(si)電(dian)(dian)(dian)(dian)火花(hua)線切割加(jia)工(gong)時可以采用距離密著加(jia)工(gong),即使(shi)上部導向(xiang)(xiang)器與(yu)工(gong)件(jian)的距離盡(jin)量(liang)靠近(約 0.05 ~ 0.10mm ),避免(mian)因距離較(jiao)遠而(er)使(shi)電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)振(zhen)幅過(guo)大影響工(gong)件(jian)加(jia)工(gong)質量(liang)。 電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)安裝完畢后,需校正其垂直度,校正方法與(yu)快走絲(si)(si)電(dian)(dian)(dian)(dian)火花(hua)線切割加(jia)工(gong)相同。

 

項目(mu)四(si)

工(gong)件(jian)(jian)(jian)安裝 在(zai)快(kuai)走(zou)絲線切割(ge)機(ji)床(chuang)上采用(yong)(yong)的(de)(de)橋式夾(jia)(jia)具(ju)、電極絲垂直度檢具(ju)、回(hui)轉工(gong)作(zuo)臺(tai)、數(shu)控轉臺(tai)等(deng)機(ji)床(chuang)附件(jian)(jian)(jian)、工(gong)具(ju),同(tong)樣可以在(zai)慢走(zou)絲線切割(ge)機(ji)床(chuang)上應用(yong)(yong)。 近年推出的(de)(de)線切割(ge)基(ji)準裝夾(jia)(jia)系統采用(yong)(yong)了通用(yong)(yong)的(de)(de)裝夾(jia)(jia)夾(jia)(jia)具(ju)和(he)找正(zheng)工(gong)具(ju),只需(xu)極簡(jian)單的(de)(de)操(cao)作(zuo),就可快(kuai)速準確地完成工(gong)件(jian)(jian)(jian)的(de)(de)找正(zheng)和(he)裝夾(jia)(jia),廣泛用(yong)(yong)于慢走(zou)絲線切割(ge)機(ji)床(chuang)上,

 

項目五

程序(xu)(xu)(xu)輸入(ru)(ru) 按機床操(cao)作說明(ming)書的要(yao)求,通過在不同操(cao)作模塊間的切換,用鍵盤輸入(ru)(ru)加工程序(xu)(xu)(xu)或(huo)直接調用已有程序(xu)(xu)(xu)并裝入(ru)(ru)內(nei)存,完成生(sheng)成工件切割的程序(xu)(xu)(xu)操(cao)作。執行(xing)程序(xu)(xu)(xu)前(qian),先將(jiang)程序(xu)(xu)(xu)模擬運(yun)行(xing)一遍,以(yi)檢驗(yan)程序(xu)(xu)(xu)的運(yun)行(xing)狀況,以(yi)免實際加工后(hou)造成不良的后(hou)果。然后(hou)按 ENT 鍵即可(ke)執行(xing)所輸入(ru)(ru)的程序(xu)(xu)(xu),加工零件。

 

項目六(liu)

程序運行 慢走(zou)絲線(xian)切割(ge)時應采用少量、多次切割(ge)方式。緣(yuan)于減(jian)少線(xian)切割(ge)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)時工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)材料的(de)(de)變形(xing)可(ke)以有效提高工(gong)(gong)(gong)(gong)(gong)件(jian)(jian) 加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精度及改(gai)善表(biao)面(mian)質量,因(yin)而(er)在粗加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)或半精加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)時可(ke)留一定余(yu)(yu)量,以補償材料因(yin)原應力(li)平衡狀(zhuang)態被破壞所(suo)產生(sheng)的(de)(de)變形(xing)和最后一次精加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)時所(suo)需的(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)余(yu)(yu)量,當最后精加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)時即(ji)可(ke)獲得(de)較為滿意的(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)效果。

 

項目七

零件(jian)檢測 加(jia)工結束,卸下零件(jian),檢測有關加(jia)工參數(shu)。

 

項目八 關機

關機步驟如(ru)下: 1、將工(gong)作(zuo)臺移(yi)至各軸中間位置; 2、按下紅色急(ji)停按鈕(niu); 3、扳下電源主開關,關閉電源; 4、斷(duan)開外接線路。

 


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