本發明(ming)涉及一種線放(fang)電加工(gong)機的控制裝置、線放(fang)電加工(gong)機的控制方法。

背景技術：

放電(dian)(dian)(dian)(dian)加(jia)(jia)(jia)工(gong)裝(zhuang)(zhuang)置(zhi)是通過使(shi)(shi)加(jia)(jia)(jia)工(gong)用電(dian)(dian)(dian)(dian)極(ji)(ji)和被(bei)加(jia)(jia)(jia)工(gong)物(wu)之間(jian)(jian)(jian)(極(ji)(ji)間(jian)(jian)(jian))產生電(dian)(dian)(dian)(dian)弧放電(dian)(dian)(dian)(dian)而(er)對被(bei)加(jia)(jia)(jia)工(gong)物(wu)進(jin)行(xing)(xing)加(jia)(jia)(jia)工(gong)的(de)(de)裝(zhuang)(zhuang)置(zhi)。放電(dian)(dian)(dian)(dian)加(jia)(jia)(jia)工(gong)裝(zhuang)(zhuang)置(zhi)需要用于(yu)使(shi)(shi)極(ji)(ji)間(jian)(jian)(jian)產生放電(dian)(dian)(dian)(dian)的(de)(de)電(dian)(dian)(dian)(dian)源。如果在極(ji)(ji)間(jian)(jian)(jian)施加(jia)(jia)(jia)高(gao)電(dian)(dian)(dian)(dian)壓、或者使(shi)(shi)極(ji)(ji)間(jian)(jian)(jian)的(de)(de)距離變短而(er)提高(gao)電(dian)(dian)(dian)(dian)場強度(du)，則由(you)于(yu)絕緣(yuan)破壞而(er)產生放電(dian)(dian)(dian)(dian)，對被(bei)加(jia)(jia)(jia)工(gong)物(wu)進(jin)行(xing)(xing)去除加(jia)(jia)(jia)工(gong)。在放電(dian)(dian)(dian)(dian)結束(shu)、絕緣(yuan)恢復之后進(jin)行(xing)(xing)再次放電(dian)(dian)(dian)(dian)時，極(ji)(ji)間(jian)(jian)(jian)的(de)(de)距離變寬(kuan)，因此需要對極(ji)(ji)間(jian)(jian)(jian)施加(jia)(jia)(jia)高(gao)電(dian)(dian)(dian)(dian)壓、或者使(shi)(shi)極(ji)(ji)間(jian)(jian)(jian)變窄而(er)提高(gao)電(dian)(dian)(dian)(dian)場強度(du)。

另外(wai)，在(zai)使用放(fang)電(dian)加(jia)(jia)工(gong)(gong)(gong)裝(zhuang)置的(de)加(jia)(jia)工(gong)(gong)(gong)中(zhong)，根據目(mu)(mu)標(biao)尺寸(cun)和表面(mian)粗(cu)糙(cao)度的(de)精度的(de)不同而一邊改變加(jia)(jia)工(gong)(gong)(gong)條件(jian)一邊進行多次重復(fu)加(jia)(jia)工(gong)(gong)(gong)。存在(zai)首先從(cong)被(bei)加(jia)(jia)工(gong)(gong)(gong)物(wu)加(jia)(jia)工(gong)(gong)(gong)出目(mu)(mu)標(biao)形(xing)狀的(de)工(gong)(gong)(gong)序(xu)(xu)(第(di)1次加(jia)(jia)工(gong)(gong)(gong)，以后(hou)稱(cheng)為第(di)1加(jia)(jia)工(gong)(gong)(gong))，存在(zai)然后(hou)匹(pi)配(pei)目(mu)(mu)標(biao)而提高形(xing)狀的(de)精度、使表面(mian)粗(cu)糙(cao)度變小的(de)工(gong)(gong)(gong)序(xu)(xu)(形(xing)狀修(xiu)正(zheng)加(jia)(jia)工(gong)(gong)(gong))。

在(zai)(zai)(zai)加(jia)(jia)(jia)工(gong)(gong)工(gong)(gong)序之中(zhong)的(de)(de)(de)(de)(de)第(di)1加(jia)(jia)(jia)工(gong)(gong)中(zhong)，為了提高(gao)(gao)生產率而要求(qiu)高(gao)(gao)速度(du)化，在(zai)(zai)(zai)為了進行高(gao)(gao)速加(jia)(jia)(jia)工(gong)(gong)而投入(ru)高(gao)(gao)能量的(de)(de)(de)(de)(de)過程中(zhong)，加(jia)(jia)(jia)工(gong)(gong)形(xing)狀(zhuang)與目(mu)標形(xing)狀(zhuang)產生偏(pian)離。作為其原因(yin)(yin)，可(ke)以(yi)想到為了防止(zhi)在(zai)(zai)(zai)高(gao)(gao)速加(jia)(jia)(jia)工(gong)(gong)時斷線(xian)而提高(gao)(gao)所噴射的(de)(de)(de)(de)(de)液壓(ya)、基于(yu)加(jia)(jia)(jia)工(gong)(gong)次數而引起的(de)(de)(de)(de)(de)導線(xian)張力的(de)(de)(de)(de)(de)變(bian)動、以(yi)及由于(yu)加(jia)(jia)(jia)工(gong)(gong)時的(de)(de)(de)(de)(de)殘留應力而在(zai)(zai)(zai)加(jia)(jia)(jia)工(gong)(gong)物(wu)(wu)發(fa)生畸(ji)變(bian)。這樣，由于(yu)在(zai)(zai)(zai)第(di)1加(jia)(jia)(jia)工(gong)(gong)中(zhong)產生下(xia)述問(wen)題(ti)，即，在(zai)(zai)(zai)加(jia)(jia)(jia)工(gong)(gong)中(zhong)，發(fa)生加(jia)(jia)(jia)工(gong)(gong)用電極的(de)(de)(de)(de)(de)隨機性的(de)(de)(de)(de)(de)動作、被加(jia)(jia)(jia)工(gong)(gong)物(wu)(wu)的(de)(de)(de)(de)(de)難以(yi)預(yu)想的(de)(de)(de)(de)(de)膨脹、收縮、加(jia)(jia)(jia)工(gong)(gong)后(hou)的(de)(de)(de)(de)(de)被加(jia)(jia)(jia)工(gong)(gong)物(wu)(wu)的(de)(de)(de)(de)(de)形(xing)狀(zhuang)與目(mu)標形(xing)狀(zhuang)偏(pian)離的(de)(de)(de)(de)(de)問(wen)題(ti)，因(yin)(yin)此(ci)需要在(zai)(zai)(zai)第(di)1加(jia)(jia)(jia)工(gong)(gong)之后(hou)對形(xing)狀(zhuang)進行修正的(de)(de)(de)(de)(de)工(gong)(gong)序。

在形(xing)(xing)狀(zhuang)修正(zheng)加(jia)工(gong)中(zhong)(zhong)，要(yao)求一邊對(dui)在第1加(jia)工(gong)中(zhong)(zhong)發生的(de)(de)形(xing)(xing)狀(zhuang)的(de)(de)偏(pian)離(li)(li)(li)進(jin)(jin)(jin)行(xing)(xing)修正(zheng)、一邊提高表面粗糙(cao)度(du)(du)的(de)(de)精度(du)(du)。然而(er)，在第1加(jia)工(gong)中(zhong)(zhong)形(xing)(xing)狀(zhuang)相對(dui)于(yu)加(jia)工(gong)行(xing)(xing)進(jin)(jin)(jin)方(fang)(fang)向(xiang)沿哪個方(fang)(fang)向(xiang)偏(pian)離(li)(li)(li)多少(shao)是根(gen)據加(jia)工(gong)樣本(ben)的(de)(de)形(xing)(xing)狀(zhuang)、加(jia)工(gong)行(xing)(xing)進(jin)(jin)(jin)方(fang)(fang)向(xiang)、加(jia)工(gong)條件等而(er)變(bian)化的(de)(de)。在形(xing)(xing)狀(zhuang)修正(zheng)加(jia)工(gong)中(zhong)(zhong)，要(yao)求即使要(yao)修正(zheng)的(de)(de)加(jia)工(gong)量由于(yu)加(jia)工(gong)場(chang)所(suo)、對(dui)應于(yu)加(jia)工(gong)行(xing)(xing)進(jin)(jin)(jin)方(fang)(fang)向(xiang)的(de)(de)方(fang)(fang)向(xiang)而(er)變(bian)化，也(ye)要(yao)按目標尺寸進(jin)(jin)(jin)行(xing)(xing)加(jia)工(gong)的(de)(de)能(neng)力。如果在形(xing)(xing)狀(zhuang)修正(zheng)加(jia)工(gong)中(zhong)(zhong)不(bu)能(neng)按目標尺寸對(dui)形(xing)(xing)狀(zhuang)進(jin)(jin)(jin)行(xing)(xing)修正(zheng)，則極間距(ju)離(li)(li)(li)會由于(yu)加(jia)工(gong)場(chang)所(suo)而(er)變(bian)化，表面粗糙(cao)度(du)(du)的(de)(de)波動變(bian)大(da)的(de)(de)可(ke)能(neng)性提高。

因此，為(wei)了提高形狀修正能力，通常采用下述控制(zhi)方式，即，作為(wei)對(dui)(dui)放電(dian)(dian)加(jia)工(gong)中(zhong)的(de)加(jia)工(gong)狀態進行檢測的(de)手(shou)段而(er)監視極間平(ping)均加(jia)工(gong)電(dian)(dian)壓(ya)(ya)，以使得極間平(ping)均加(jia)工(gong)電(dian)(dian)壓(ya)(ya)成為(wei)設定電(dian)(dian)壓(ya)(ya)的(de)方式控制(zhi)相(xiang)對(dui)(dui)移動速(su)度(du)。

專利文獻1：日本特(te)開2011－110649(第6、7頁、圖1、圖2)

專利(li)文(wen)獻2：日(ri)本特(te)開平10－138048(第2頁(ye)、圖(tu)1)

背景技術

然而，形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang)修(xiu)正(zheng)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)量依賴(lai)于在(zai)被加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)物的(de)(de)(de)(de)前(qian)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)序中殘留的(de)(de)(de)(de)程度(du)，即使在(zai)一個(ge)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang)之中也(ye)不始終(zhong)限于恒定(ding)(ding)。實(shi)際(ji)上，根據加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)機的(de)(de)(de)(de)構造、加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)液壓、被加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)物的(de)(de)(de)(de)畸(ji)變，進行加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)(de)量由于加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)面(X+、Y+、X－、Y－)而變化(hua)。圖(tu)1是(shi)表示形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang)修(xiu)正(zheng)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)量根據第(di)1加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)后的(de)(de)(de)(de)被加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)物的(de)(de)(de)(de)形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang)而變化(hua)的(de)(de)(de)(de)情況的(de)(de)(de)(de)圖(tu)。虛線(xian)是(shi)第(di)1加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)(de)設(she)(she)定(ding)(ding)形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang)(被編程為第(di)1加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)用的(de)(de)(de)(de)目(mu)標(biao)形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang))，實(shi)線(xian)是(shi)實(shi)際(ji)的(de)(de)(de)(de)第(di)1加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)后的(de)(de)(de)(de)形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang)，點劃線(xian)是(shi)形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang)修(xiu)正(zheng)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)(de)設(she)(she)定(ding)(ding)形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang)(被編程為形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang)修(xiu)正(zheng)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)用的(de)(de)(de)(de)目(mu)標(biao)形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang))。根據相(xiang)(xiang)對于第(di)1加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)(de)設(she)(she)定(ding)(ding)形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang)的(de)(de)(de)(de)偏(pian)離(li)，形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang)修(xiu)正(zheng)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)中的(de)(de)(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)量相(xiang)(xiang)對于設(she)(she)定(ding)(ding)值而增減。因此，即使采用現有的(de)(de)(de)(de)控制方(fang)式，也(ye)存在(zai)不能按尺寸加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)(de)問題，該現有的(de)(de)(de)(de)控制方(fang)式以使形(xing)(xing)(xing)(xing)(xing)狀(zhuang)(zhuang)修(xiu)正(zheng)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)中測定(ding)(ding)出的(de)(de)(de)(de)平均電壓與所設(she)(she)定(ding)(ding)的(de)(de)(de)(de)電壓一致的(de)(de)(de)(de)方(fang)式對加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)速度(du)進行控制。

因此(ci)，作為在(zai)(zai)形(xing)(xing)狀修(xiu)正加(jia)(jia)(jia)(jia)工(gong)(gong)中(zhong)通過現有的(de)(de)(de)控制方(fang)(fang)(fang)式所實現的(de)(de)(de)控制不(bu)(bu)充(chong)分(fen)的(de)(de)(de)原(yuan)因，發明(ming)人們想到(dao)形(xing)(xing)狀修(xiu)正加(jia)(jia)(jia)(jia)工(gong)(gong)特有的(de)(de)(de)兩個原(yuan)因。首(shou)先，第一個是(shi)，僅利用(yong)加(jia)(jia)(jia)(jia)工(gong)(gong)中(zhong)的(de)(de)(de)極(ji)(ji)間(jian)(jian)(jian)平均(jun)(jun)加(jia)(jia)(jia)(jia)工(gong)(gong)電(dian)壓不(bu)(bu)能完全測定(ding)側(ce)間(jian)(jian)(jian)隙(xi)和(he)前(qian)(qian)間(jian)(jian)(jian)隙(xi)的(de)(de)(de)差。這里(li)，前(qian)(qian)間(jian)(jian)(jian)隙(xi)是(shi)指(zhi)由(you)在(zai)(zai)加(jia)(jia)(jia)(jia)工(gong)(gong)用(yong)電(dian)極(ji)(ji)的(de)(de)(de)行(xing)(xing)進(jin)方(fang)(fang)(fang)向正進(jin)行(xing)(xing)的(de)(de)(de)放(fang)電(dian)所生成(cheng)的(de)(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)用(yong)電(dian)極(ji)(ji)和(he)被(bei)加(jia)(jia)(jia)(jia)工(gong)(gong)物之(zhi)(zhi)間(jian)(jian)(jian)的(de)(de)(de)距離，側(ce)間(jian)(jian)(jian)隙(xi)是(shi)指(zhi)在(zai)(zai)與加(jia)(jia)(jia)(jia)工(gong)(gong)行(xing)(xing)進(jin)方(fang)(fang)(fang)向垂(chui)直的(de)(de)(de)方(fang)(fang)(fang)向生成(cheng)的(de)(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)用(yong)電(dian)極(ji)(ji)和(he)被(bei)加(jia)(jia)(jia)(jia)工(gong)(gong)物之(zhi)(zhi)間(jian)(jian)(jian)的(de)(de)(de)距離。另外，作為形(xing)(xing)狀修(xiu)正加(jia)(jia)(jia)(jia)工(gong)(gong)的(de)(de)(de)重要作用(yong)的(de)(de)(de)形(xing)(xing)狀修(xiu)正是(shi)使(shi)側(ce)間(jian)(jian)(jian)隙(xi)恒定(ding)。圖2是(shi)表示加(jia)(jia)(jia)(jia)工(gong)(gong)用(yong)電(dian)極(ji)(ji)與被(bei)加(jia)(jia)(jia)(jia)工(gong)(gong)物的(de)(de)(de)位置關系、和(he)前(qian)(qian)間(jian)(jian)(jian)隙(xi)、側(ce)間(jian)(jian)(jian)隙(xi)的(de)(de)(de)定(ding)義(yi)的(de)(de)(de)圖。極(ji)(ji)間(jian)(jian)(jian)平均(jun)(jun)加(jia)(jia)(jia)(jia)工(gong)(gong)電(dian)壓能夠對產生了(le)放(fang)電(dian)的(de)(de)(de)情況進(jin)行(xing)(xing)監視(shi)，但(dan)不(bu)(bu)知道在(zai)(zai)哪里(li)產生了(le)放(fang)電(dian)。然而，通過本次實驗(yan)判明(ming)，即(ji)使(shi)實際上以將(jiang)極(ji)(ji)間(jian)(jian)(jian)平均(jun)(jun)加(jia)(jia)(jia)(jia)工(gong)(gong)電(dian)壓設為恒定(ding)的(de)(de)(de)方(fang)(fang)(fang)式進(jin)行(xing)(xing)加(jia)(jia)(jia)(jia)工(gong)(gong)，側(ce)間(jian)(jian)(jian)隙(xi)也會由(you)于加(jia)(jia)(jia)(jia)工(gong)(gong)速度而無法成(cheng)為恒定(ding)，可知為了(le)提高(gao)形(xing)(xing)狀修(xiu)正加(jia)(jia)(jia)(jia)工(gong)(gong)的(de)(de)(de)精(jing)度而僅使(shi)極(ji)(ji)間(jian)(jian)(jian)平均(jun)(jun)加(jia)(jia)(jia)(jia)工(gong)(gong)電(dian)壓恒定(ding)的(de)(de)(de)控制是(shi)不(bu)(bu)充(chong)分(fen)的(de)(de)(de)。

作為(wei)(wei)(wei)現(xian)有(you)的(de)(de)(de)(de)(de)(de)控制方式不(bu)(bu)充分(fen)的(de)(de)(de)(de)(de)(de)原因之(zhi)二，認為(wei)(wei)(wei)是(shi)表示(shi)進行(xing)(xing)放(fang)(fang)電(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)范(fan)圍(wei)的(de)(de)(de)(de)(de)(de)放(fang)(fang)電(dian)(dian)(dian)間(jian)(jian)隙(xi)(xi)(xi)隨著時間(jian)(jian)而(er)生(sheng)(sheng)長(chang)(chang)的(de)(de)(de)(de)(de)(de)現(xian)象(xiang)。這里，放(fang)(fang)電(dian)(dian)(dian)間(jian)(jian)隙(xi)(xi)(xi)可(ke)以(yi)解釋(shi)為(wei)(wei)(wei)在(zai)(zai)加(jia)(jia)工(gong)用(yong)電(dian)(dian)(dian)極(ji)和被(bei)加(jia)(jia)工(gong)物(wu)之(zhi)間(jian)(jian)能(neng)夠(gou)產生(sheng)(sheng)放(fang)(fang)電(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)距離(li)。放(fang)(fang)電(dian)(dian)(dian)間(jian)(jian)隙(xi)(xi)(xi)的(de)(de)(de)(de)(de)(de)生(sheng)(sheng)長(chang)(chang)是(shi)指(zhi)下(xia)述現(xian)象(xiang)，即，如(ru)果(guo)使加(jia)(jia)工(gong)用(yong)電(dian)(dian)(dian)極(ji)與(yu)被(bei)加(jia)(jia)工(gong)物(wu)以(yi)不(bu)(bu)短路的(de)(de)(de)(de)(de)(de)長(chang)(chang)度(du)充分(fen)接(jie)近地進行(xing)(xing)放(fang)(fang)電(dian)(dian)(dian)，則與(yu)被(bei)加(jia)(jia)工(gong)物(wu)的(de)(de)(de)(de)(de)(de)距離(li)隨著時間(jian)(jian)而(er)變(bian)大(da)(da)。能(neng)夠(gou)產生(sheng)(sheng)放(fang)(fang)電(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)極(ji)間(jian)(jian)距離(li)為(wei)(wei)(wei)小(xiao)于或等(deng)于幾(ji)十微米，在(zai)(zai)一次(ci)放(fang)(fang)電(dian)(dian)(dian)中放(fang)(fang)電(dian)(dian)(dian)間(jian)(jian)隙(xi)(xi)(xi)擴(kuo)(kuo)展幾(ji)個微米。在(zai)(zai)形(xing)狀修正加(jia)(jia)工(gong)中，加(jia)(jia)工(gong)用(yong)電(dian)(dian)(dian)極(ji)與(yu)被(bei)加(jia)(jia)工(gong)物(wu)的(de)(de)(de)(de)(de)(de)位置關系如(ru)圖(tu)2所示(shi)。在(zai)(zai)加(jia)(jia)工(gong)用(yong)電(dian)(dian)(dian)極(ji)相對于被(bei)加(jia)(jia)工(gong)物(wu)而(er)移動的(de)(de)(de)(de)(de)(de)情況(kuang)下(xia)，在(zai)(zai)速度(du)大(da)(da)的(de)(de)(de)(de)(de)(de)情況(kuang)下(xia)加(jia)(jia)工(gong)在(zai)(zai)側間(jian)(jian)隙(xi)(xi)(xi)擴(kuo)(kuo)展之(zhi)前進行(xing)(xing)，在(zai)(zai)速度(du)小(xiao)的(de)(de)(de)(de)(de)(de)情況(kuang)下(xia)在(zai)(zai)直至側間(jian)(jian)隙(xi)(xi)(xi)擴(kuo)(kuo)展至接(jie)近能(neng)夠(gou)產生(sheng)(sheng)放(fang)(fang)電(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)極(ji)間(jian)(jian)距離(li)的(de)(de)(de)(de)(de)(de)最大(da)(da)值的(de)(de)(de)(de)(de)(de)同時進行(xing)(xing)加(jia)(jia)工(gong)。在(zai)(zai)現(xian)有(you)的(de)(de)(de)(de)(de)(de)控制方式中未考慮到放(fang)(fang)電(dian)(dian)(dian)間(jian)(jian)隙(xi)(xi)(xi)的(de)(de)(de)(de)(de)(de)生(sheng)(sheng)長(chang)(chang)，因此對于使側間(jian)(jian)隙(xi)(xi)(xi)恒定而(er)言是(shi)不(bu)(bu)充分(fen)的(de)(de)(de)(de)(de)(de)。

例(li)如在專利文獻1中，在以使得(de)加工(gong)(gong)(gong)用(yong)電(dian)(dian)極(ji)和(he)被(bei)加工(gong)(gong)(gong)物(wu)(wu)之間(jian)的(de)(de)極(ji)間(jian)平(ping)均(jun)加工(gong)(gong)(gong)電(dian)(dian)壓成為設(she)定(ding)電(dian)(dian)壓的(de)(de)方式對相(xiang)對移動速度進(jin)(jin)行(xing)控制的(de)(de)方式中，存(cun)在與(yu)加工(gong)(gong)(gong)條件(jian)(加工(gong)(gong)(gong)用(yong)電(dian)(dian)極(ji)的(de)(de)直徑、被(bei)加工(gong)(gong)(gong)物(wu)(wu)的(de)(de)材質、被(bei)加工(gong)(gong)(gong)物(wu)(wu)的(de)(de)板(ban)厚)相(xiang)應的(de)(de)校(xiao)(xiao)正(zheng)系數的(de)(de)表，利用(yong)校(xiao)(xiao)正(zheng)系數而對極(ji)間(jian)平(ping)均(jun)加工(gong)(gong)(gong)電(dian)(dian)壓進(jin)(jin)行(xing)校(xiao)(xiao)正(zheng)。即，通過恒(heng)定(ding)的(de)(de)系數以恒(heng)定(ding)的(de)(de)校(xiao)(xiao)正(zheng)值(zhi)增減而對極(ji)間(jian)平(ping)均(jun)加工(gong)(gong)(gong)電(dian)(dian)壓進(jin)(jin)行(xing)校(xiao)(xiao)正(zheng)，因此在一(yi)個(ge)加工(gong)(gong)(gong)條件(jian)下具(ju)有恒(heng)定(ding)的(de)(de)校(xiao)(xiao)正(zheng)值(zhi)。

另(ling)外，在(zai)(zai)專(zhuan)利(li)文(wen)獻(xian)2中提(ti)出了下述技術，即，在(zai)(zai)多臺相同(tong)結(jie)構的(de)(de)裝置中，為了提(ti)高相同(tong)條件下的(de)(de)加(jia)工(gong)精度的(de)(de)再(zai)現(xian)性(xing)而對(dui)極(ji)間(jian)(jian)平均加(jia)工(gong)電(dian)(dian)壓(ya)值(zhi)進(jin)(jin)行校正(zheng)。在(zai)(zai)電(dian)(dian)極(ji)和被加(jia)工(gong)物(wu)之間(jian)(jian)施加(jia)電(dian)(dian)壓(ya)，對(dui)斷開(kai)狀態(tai)的(de)(de)平均斷開(kai)電(dian)(dian)壓(ya)進(jin)(jin)行測量(liang)，極(ji)間(jian)(jian)平均加(jia)工(gong)電(dian)(dian)壓(ya)值(zhi)的(de)(de)校正(zheng)值(zhi)根據規(gui)定的(de)(de)基準(zhun)電(dian)(dian)壓(ya)值(zhi)而進(jin)(jin)行設定。專(zhuan)利(li)文(wen)獻(xian)2的(de)(de)控(kong)制是利(li)用所述的(de)(de)校正(zheng)系(xi)數而對(dui)在(zai)(zai)加(jia)工(gong)中測量(liang)的(de)(de)極(ji)間(jian)(jian)平均加(jia)工(gong)電(dian)(dian)壓(ya)值(zhi)進(jin)(jin)行校正(zheng)，對(dui)相對(dui)移動(dong)速度進(jin)(jin)行控(kong)制以達(da)到設定電(dian)(dian)壓(ya)。

然而(er)，在(zai)(zai)(zai)專利文獻1及2中(zhong)(zhong)，提示了基于事先加工(gong)的(de)結果(guo)而(er)統一進行校正(zheng)的(de)方法，在(zai)(zai)(zai)該(gai)方法中(zhong)(zhong)，在(zai)(zai)(zai)一個加工(gong)形(xing)狀(zhuang)的(de)加工(gong)中(zhong)(zhong)僅具(ju)有(you)恒定的(de)校正(zheng)值，因此存在(zai)(zai)(zai)下(xia)述(shu)問題，即，不能對應(ying)于在(zai)(zai)(zai)一個加工(gong)形(xing)狀(zhuang)之中(zhong)(zhong)產生的(de)加工(gong)量(liang)的(de)波動(dong)而(er)進行形(xing)狀(zhuang)修正(zheng)。

本發明(ming)就是為了解決上述課題而提出(chu)的，得到一種(zhong)線放(fang)電(dian)加(jia)(jia)(jia)工(gong)(gong)機(ji)，該(gai)線放(fang)電(dian)加(jia)(jia)(jia)工(gong)(gong)機(ji)一邊(bian)進行加(jia)(jia)(jia)工(gong)(gong)一邊(bian)檢測加(jia)(jia)(jia)工(gong)(gong)狀(zhuang)(zhuang)態(tai)，以對應于該(gai)狀(zhuang)(zhuang)態(tai)而使得側間隙(xi)恒定的方(fang)式(shi)對設定電(dian)壓或者極間平均(jun)加(jia)(jia)(jia)工(gong)(gong)電(dian)壓的至少任(ren)一者進行校正，由此能夠(gou)提高加(jia)(jia)(jia)工(gong)(gong)精度。

在本發明所涉及的(de)線放(fang)(fang)電(dian)(dian)加(jia)(jia)工(gong)(gong)機的(de)控(kong)制(zhi)裝(zhuang)置(zhi)中，該線放(fang)(fang)電(dian)(dian)加(jia)(jia)工(gong)(gong)機具有對(dui)應于設(she)定(ding)電(dian)(dian)壓(ya)和極(ji)間平均加(jia)(jia)工(gong)(gong)電(dian)(dian)壓(ya)的(de)差值而對(dui)加(jia)(jia)工(gong)(gong)速(su)度進(jin)行控(kong)制(zhi)的(de)控(kong)制(zhi)裝(zhuang)置(zhi)，所述線放(fang)(fang)電(dian)(dian)加(jia)(jia)工(gong)(gong)機的(de)控(kong)制(zhi)裝(zhuang)置(zhi)的(de)特征在于，控(kong)制(zhi)裝(zhuang)置(zhi)對(dui)應于加(jia)(jia)工(gong)(gong)速(su)度的(de)變(bian)化(hua)而對(dui)設(she)定(ding)電(dian)(dian)壓(ya)或(huo)者極(ji)間平均加(jia)(jia)工(gong)(gong)電(dian)(dian)壓(ya)的(de)至(zhi)少(shao)任一(yi)者進(jin)行校正。

發明的效果

本發明對應于(yu)加(jia)工(gong)速度控制部所(suo)計算出(chu)的加(jia)工(gong)速度和(he)預先設(she)定(ding)的設(she)定(ding)速度的差值而對設(she)定(ding)電壓或者極間平(ping)均(jun)加(jia)工(gong)電壓的至少任一(yi)者進行校正，因此能(neng)夠(gou)使側間隙恒(heng)定(ding)，能(neng)夠(gou)提(ti)高加(jia)工(gong)精度。

附圖說明

圖1是表示(shi)形狀(zhuang)修(xiu)正(zheng)加(jia)工(gong)的(de)加(jia)工(gong)量(liang)根據(ju)第1加(jia)工(gong)后(hou)的(de)被加(jia)工(gong)物的(de)形狀(zhuang)而變化(hua)的(de)情況的(de)圖。

圖2是表示加工(gong)用電極與被加工(gong)物的(de)位置關系(xi)和前(qian)間隙、側(ce)間隙的(de)定義的(de)圖。

圖3是表示本發明(ming)的實施方式1的線放電(dian)加(jia)工(gong)機的框圖。

圖4是(shi)表示進行現(xian)有的(de)(de)控(kong)制的(de)(de)線放電加(jia)工機的(de)(de)框圖。

圖(tu)5是(shi)表示在形狀修(xiu)正加工時所測定的極間(jian)平均加工電壓與側間(jian)隙的關系(xi)的一個例子(zi)的圖(tu)形。

圖(tu)6是(shi)表示在(zai)形狀修正加工時所測(ce)定(ding)的(de)(de)極間(jian)平均加工電壓、加工速度及(ji)側間(jian)隙的(de)(de)關系(xi)的(de)(de)圖(tu)形。

圖(tu)7是表示本發(fa)明的(de)實施方式1的(de)線放電加工機中的(de)控制過程的(de)框圖(tu)。

圖8是表示(shi)通過本(ben)發明的(de)實施方式1的(de)線放電加(jia)(jia)工(gong)機中的(de)控制實現(xian)的(de)加(jia)(jia)工(gong)速(su)度(du)與通過現(xian)有控制實現(xian)的(de)加(jia)(jia)工(gong)速(su)度(du)的(de)對(dui)比(bi)的(de)圖形。

圖9是表(biao)示(shi)本(ben)發明的(de)實施(shi)方式2的(de)線放電(dian)加(jia)工機的(de)構(gou)造和控制結構(gou)的(de)圖。

圖(tu)10是表示本發明的實(shi)施方式2的線(xian)放電加(jia)工機中的控制過程的框圖(tu)。

圖(tu)(tu)11是表示(shi)通過(guo)(guo)本發明的(de)實施方(fang)式2的(de)線放電加工機中的(de)控制(zhi)實現(xian)的(de)加工速(su)度和通過(guo)(guo)現(xian)有控制(zhi)實現(xian)的(de)加工速(su)度的(de)對比的(de)圖(tu)(tu)形。

圖12是表示(shi)通過本發明的(de)實(shi)施(shi)方式3的(de)線(xian)放電加工機中的(de)控制實(shi)現(xian)的(de)加工速(su)度和(he)通過現(xian)有控制實(shi)現(xian)的(de)加工速(su)度的(de)對比(bi)的(de)圖形。

圖13是表示(shi)通過(guo)本(ben)發明的實(shi)施方式4的線放(fang)電加工機中的控制(zhi)實(shi)現的加工速(su)度和通過(guo)現有(you)控制(zhi)實(shi)現的加工速(su)度的對比的圖形。

具體實施方式

實施方式1.

圖(tu)3是(shi)表示本發(fa)明的(de)實施方式1的(de)線放電加(jia)(jia)(jia)工(gong)機(ji)的(de)框圖(tu)。本發(fa)明的(de)線放電加(jia)(jia)(jia)工(gong)機(ji)首先由(you)加(jia)(jia)(jia)工(gong)用(yong)(yong)電極(ji)3、電源(yuan)部(bu)(bu)90、控制(zhi)(zhi)部(bu)(bu)101構(gou)成。電源(yuan)部(bu)(bu)90由(you)對加(jia)(jia)(jia)工(gong)用(yong)(yong)電極(ji)3和被(bei)加(jia)(jia)(jia)工(gong)物4之間施加(jia)(jia)(jia)電壓的(de)加(jia)(jia)(jia)工(gong)用(yong)(yong)電源(yuan)2、以(yi)及對加(jia)(jia)(jia)工(gong)用(yong)(yong)電源(yuan)2的(de)接通、斷(duan)開進行控制(zhi)(zhi)的(de)加(jia)(jia)(jia)工(gong)用(yong)(yong)電源(yuan)控制(zhi)(zhi)部(bu)(bu)1構(gou)成。這里，對于電源(yuan)部(bu)(bu)90及機(ji)械(xie)構(gou)造(zao)的(de)詳細內容(電路上存在的(de)開關、電感、電阻、電導的(de)數量(liang)和配(pei)置(zhi))的(de)說明，由(you)于與本發(fa)明的(de)主旨(zhi)不(bu)同，因(yin)此省略。

在控(kong)(kong)制(zhi)(zhi)部(bu)101中，根(gen)據加(jia)工(gong)(gong)用電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)3和被加(jia)工(gong)(gong)物(wu)4之間(jian)(jian)的(de)(de)(de)極(ji)(ji)間(jian)(jian)平(ping)均(jun)(jun)(jun)加(jia)工(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)而對(dui)加(jia)工(gong)(gong)速度(du)(du)(du)(加(jia)工(gong)(gong)用電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)3和被加(jia)工(gong)(gong)物(wu)4的(de)(de)(de)相(xiang)對(dui)速度(du)(du)(du))進行控(kong)(kong)制(zhi)(zhi)。控(kong)(kong)制(zhi)(zhi)部(bu)101在對(dui)極(ji)(ji)間(jian)(jian)平(ping)均(jun)(jun)(jun)加(jia)工(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)進行檢測的(de)(de)(de)極(ji)(ji)間(jian)(jian)平(ping)均(jun)(jun)(jun)加(jia)工(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)檢測部(bu)5、對(dui)測定(ding)(ding)出的(de)(de)(de)極(ji)(ji)間(jian)(jian)平(ping)均(jun)(jun)(jun)加(jia)工(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)和設定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)(de)差進行運算(suan)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)運算(suan)部(bu)7、對(dui)用于以規(gui)定(ding)(ding)的(de)(de)(de)平(ping)均(jun)(jun)(jun)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)進行加(jia)工(gong)(gong)的(de)(de)(de)設定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)進行存儲(chu)的(de)(de)(de)設定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)存儲(chu)部(bu)6、加(jia)工(gong)(gong)速度(du)(du)(du)控(kong)(kong)制(zhi)(zhi)部(bu)8、驅動(dong)控(kong)(kong)制(zhi)(zhi)裝置9的(de)(de)(de)基礎上，由對(dui)用于以規(gui)定(ding)(ding)的(de)(de)(de)加(jia)工(gong)(gong)速度(du)(du)(du)進行加(jia)工(gong)(gong)的(de)(de)(de)設定(ding)(ding)速度(du)(du)(du)進行存儲(chu)的(de)(de)(de)設定(ding)(ding)速度(du)(du)(du)存儲(chu)部(bu)10、電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)校(xiao)正值運算(suan)部(bu)11、極(ji)(ji)間(jian)(jian)平(ping)均(jun)(jun)(jun)加(jia)工(gong)(gong)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)校(xiao)正部(bu)12構成。

此外，本發明中新提出的是設定速度存儲部10、電(dian)壓校(xiao)正(zheng)值運算部11和(he)極間(jian)平(ping)均加(jia)工電(dian)壓校(xiao)正(zheng)部12。

這里(li)，首先對(dui)(dui)現有(you)的(de)(de)控(kong)(kong)制進(jin)(jin)行說(shuo)明。圖(tu)(tu)4是表(biao)示進(jin)(jin)行現有(you)的(de)(de)控(kong)(kong)制的(de)(de)線放電(dian)加(jia)工機的(de)(de)框(kuang)圖(tu)(tu)。對(dui)(dui)于與(yu)圖(tu)(tu)3相(xiang)同的(de)(de)結(jie)構(gou)部(bu)標(biao)注相(xiang)同的(de)(de)標(biao)號(hao)。現有(you)的(de)(de)控(kong)(kong)制部(bu)100由極間平均加(jia)工電(dian)壓檢(jian)測部(bu)5、電(dian)壓運算部(bu)7、設定電(dian)壓存儲部(bu)6、加(jia)工速(su)度控(kong)(kong)制部(bu)8、驅動(dong)控(kong)(kong)制裝(zhuang)置9構(gou)成。

對現有的(de)(de)(de)(de)(de)線放電(dian)(dian)(dian)(dian)(dian)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)機的(de)(de)(de)(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)中的(de)(de)(de)(de)(de)控(kong)(kong)制動作進行(xing)說明。為(wei)了使(shi)放電(dian)(dian)(dian)(dian)(dian)連續發(fa)生而進行(xing)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)，從電(dian)(dian)(dian)(dian)(dian)源部(bu)(bu)90將電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)施加(jia)(jia)(jia)(jia)至(zhi)極(ji)間(jian)(jian)，在(zai)極(ji)間(jian)(jian)平(ping)均加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)檢測(ce)部(bu)(bu)5中對每(mei)規(gui)(gui)定(ding)時(shi)間(jian)(jian)的(de)(de)(de)(de)(de)極(ji)間(jian)(jian)平(ping)均加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)進行(xing)測(ce)定(ding)。能(neng)夠(gou)根(gen)據每(mei)規(gui)(gui)定(ding)時(shi)間(jian)(jian)的(de)(de)(de)(de)(de)極(ji)間(jian)(jian)平(ping)均加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)對放電(dian)(dian)(dian)(dian)(dian)頻(pin)率、加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)量(liang)等放電(dian)(dian)(dian)(dian)(dian)狀況進行(xing)推定(ding)。被認定(ding)為(wei)適當(dang)的(de)(de)(de)(de)(de)放電(dian)(dian)(dian)(dian)(dian)頻(pin)率、加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)量(liang)等根(gen)據加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)條件而不同，根(gen)據目的(de)(de)(de)(de)(de)而決(jue)定(ding)適當(dang)的(de)(de)(de)(de)(de)極(ji)間(jian)(jian)平(ping)均加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。在(zai)設定(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)存儲部(bu)(bu)6中將被認定(ding)為(wei)與(yu)目的(de)(de)(de)(de)(de)相適合的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)預先設定(ding)為(wei)設定(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。在(zai)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)運算(suan)(suan)部(bu)(bu)7中，計(ji)(ji)(ji)算(suan)(suan)出所(suo)測(ce)定(ding)的(de)(de)(de)(de)(de)極(ji)間(jian)(jian)平(ping)均加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)和(he)設定(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)(de)(de)(de)差(cha)值。在(zai)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)速度(du)(du)控(kong)(kong)制部(bu)(bu)8中計(ji)(ji)(ji)算(suan)(suan)出使(shi)得所(suo)測(ce)定(ding)的(de)(de)(de)(de)(de)規(gui)(gui)定(ding)時(shi)間(jian)(jian)內的(de)(de)(de)(de)(de)極(ji)間(jian)(jian)平(ping)均加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)成為(wei)設定(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)運算(suan)(suan)部(bu)(bu)7所(suo)計(ji)(ji)(ji)算(suan)(suan)出的(de)(de)(de)(de)(de)差(cha)值成為(wei)0)的(de)(de)(de)(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)速度(du)(du)(加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)用(yong)電(dian)(dian)(dian)(dian)(dian)極(ji)3與(yu)被加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)物4的(de)(de)(de)(de)(de)相對速度(du)(du))，驅動裝(zhuang)置13基于加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)速度(du)(du)控(kong)(kong)制部(bu)(bu)8所(suo)計(ji)(ji)(ji)算(suan)(suan)出的(de)(de)(de)(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)速度(du)(du)，對加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)用(yong)電(dian)(dian)(dian)(dian)(dian)極(ji)3進行(xing)控(kong)(kong)制。

這里，返(fan)回至本(ben)實施(shi)方式(shi)的(de)(de)(de)控(kong)制(zhi)部(bu)(bu)101內(nei)容(rong)。如(ru)將圖(tu)(tu)3與圖(tu)(tu)4進行(xing)對(dui)(dui)比所知，在本(ben)發明的(de)(de)(de)實施(shi)方式(shi)1的(de)(de)(de)線放電(dian)(dian)加工機中新導入的(de)(de)(de)是(shi)電(dian)(dian)壓(ya)(ya)(ya)校正值運(yun)算(suan)部(bu)(bu)11、極(ji)(ji)(ji)(ji)間(jian)(jian)平(ping)均(jun)加工電(dian)(dian)壓(ya)(ya)(ya)校正部(bu)(bu)12、設(she)(she)定(ding)速(su)度(du)存儲部(bu)(bu)10。對(dui)(dui)本(ben)實施(shi)方式(shi)的(de)(de)(de)控(kong)制(zhi)部(bu)(bu)101的(de)(de)(de)動作進行(xing)說明。極(ji)(ji)(ji)(ji)間(jian)(jian)平(ping)均(jun)加工電(dian)(dian)壓(ya)(ya)(ya)檢測(ce)部(bu)(bu)5與現(xian)有(you)的(de)(de)(de)控(kong)制(zhi)部(bu)(bu)100相(xiang)同地，對(dui)(dui)極(ji)(ji)(ji)(ji)間(jian)(jian)平(ping)均(jun)加工電(dian)(dian)壓(ya)(ya)(ya)進行(xing)檢測(ce)，輸(shu)(shu)出(chu)(chu)至詳細內(nei)容(rong)后述的(de)(de)(de)極(ji)(ji)(ji)(ji)間(jian)(jian)平(ping)均(jun)加工電(dian)(dian)壓(ya)(ya)(ya)校正部(bu)(bu)12。電(dian)(dian)壓(ya)(ya)(ya)運(yun)算(suan)部(bu)(bu)7對(dui)(dui)來自極(ji)(ji)(ji)(ji)間(jian)(jian)平(ping)均(jun)加工電(dian)(dian)壓(ya)(ya)(ya)校正部(bu)(bu)12的(de)(de)(de)輸(shu)(shu)出(chu)(chu)和預(yu)先存儲于(yu)設(she)(she)定(ding)電(dian)(dian)壓(ya)(ya)(ya)存儲部(bu)(bu)6的(de)(de)(de)設(she)(she)定(ding)電(dian)(dian)壓(ya)(ya)(ya)之間(jian)(jian)的(de)(de)(de)差(cha)值進行(xing)運(yun)算(suan)。加工速(su)度(du)控(kong)制(zhi)部(bu)(bu)8與現(xian)有(you)技術同樣地，計算(suan)出(chu)(chu)使(shi)得(de)電(dian)(dian)壓(ya)(ya)(ya)運(yun)算(suan)部(bu)(bu)7所計算(suan)出(chu)(chu)的(de)(de)(de)差(cha)值成為0的(de)(de)(de)加工速(su)度(du)，驅動裝(zhuang)置13基于(yu)加工速(su)度(du)控(kong)制(zhi)部(bu)(bu)8所計算(suan)出(chu)(chu)的(de)(de)(de)加工速(su)度(du)，對(dui)(dui)加工用電(dian)(dian)極(ji)(ji)(ji)(ji)3進行(xing)控(kong)制(zhi)。

另外，下面為相對于現(xian)有(you)的控制部100所追(zhui)加的處理(li)。

除了(le)驅(qu)動(dong)控制(zhi)裝置9以外，加(jia)(jia)工(gong)(gong)(gong)(gong)速(su)(su)(su)度控制(zhi)部8將(jiang)計算(suan)(suan)出的(de)加(jia)(jia)工(gong)(gong)(gong)(gong)速(su)(su)(su)度還(huan)發(fa)送至電(dian)(dian)(dian)壓(ya)(ya)校正(zheng)(zheng)(zheng)(zheng)值運(yun)(yun)算(suan)(suan)部11。電(dian)(dian)(dian)壓(ya)(ya)校正(zheng)(zheng)(zheng)(zheng)值運(yun)(yun)算(suan)(suan)部11對預先存儲于設定速(su)(su)(su)度存儲部10的(de)設定速(su)(su)(su)度、和加(jia)(jia)工(gong)(gong)(gong)(gong)速(su)(su)(su)度控制(zhi)部8所計算(suan)(suan)出的(de)加(jia)(jia)工(gong)(gong)(gong)(gong)速(su)(su)(su)度之(zhi)間(jian)(jian)的(de)差(cha)值進行(xing)運(yun)(yun)算(suan)(suan)，對差(cha)值乘以校正(zheng)(zheng)(zheng)(zheng)系數而(er)計算(suan)(suan)出極間(jian)(jian)平(ping)均(jun)(jun)加(jia)(jia)工(gong)(gong)(gong)(gong)電(dian)(dian)(dian)壓(ya)(ya)的(de)校正(zheng)(zheng)(zheng)(zheng)值。在極間(jian)(jian)平(ping)均(jun)(jun)加(jia)(jia)工(gong)(gong)(gong)(gong)電(dian)(dian)(dian)壓(ya)(ya)校正(zheng)(zheng)(zheng)(zheng)部12中，對來自(zi)極間(jian)(jian)平(ping)均(jun)(jun)加(jia)(jia)工(gong)(gong)(gong)(gong)電(dian)(dian)(dian)壓(ya)(ya)檢測部5的(de)極間(jian)(jian)平(ping)均(jun)(jun)加(jia)(jia)工(gong)(gong)(gong)(gong)電(dian)(dian)(dian)壓(ya)(ya)、和電(dian)(dian)(dian)壓(ya)(ya)校正(zheng)(zheng)(zheng)(zheng)值運(yun)(yun)算(suan)(suan)部11所計算(suan)(suan)出的(de)極間(jian)(jian)平(ping)均(jun)(jun)加(jia)(jia)工(gong)(gong)(gong)(gong)電(dian)(dian)(dian)壓(ya)(ya)校正(zheng)(zheng)(zheng)(zheng)值進行(xing)運(yun)(yun)算(suan)(suan)，將(jiang)結果發(fa)送至電(dian)(dian)(dian)壓(ya)(ya)運(yun)(yun)算(suan)(suan)部7。

此外，由于利(li)用加(jia)(jia)工(gong)速度控(kong)制(zhi)部8使(shi)極間平均加(jia)(jia)工(gong)電(dian)壓(ya)(ya)與設(she)定(ding)電(dian)壓(ya)(ya)一致，因此對加(jia)(jia)工(gong)速度進行控(kong)制(zhi)的方(fang)式(shi)與現有(you)技(ji)術相同，這不是(shi)本發(fa)明的實質。例如對于使(shi)極間平均加(jia)(jia)工(gong)電(dian)壓(ya)(ya)與設(she)定(ding)電(dian)壓(ya)(ya)一致的控(kong)制(zhi)方(fang)式(shi)，可以基于僅(jin)為(wei)比(bi)例項的式(shi)子(zi)、還具有(you)微(wei)分、積分項的式(shi)子(zi)等(deng)計算出加(jia)(jia)工(gong)速度，或者設(she)為(wei)最佳控(kong)制(zhi)。

然后，在本發明的(de)實施方(fang)式1的(de)線放電(dian)加(jia)(jia)工(gong)(gong)(gong)機中，根據(ju)加(jia)(jia)工(gong)(gong)(gong)速(su)度而(er)對極(ji)間(jian)(jian)平(ping)均加(jia)(jia)工(gong)(gong)(gong)電(dian)壓(ya)進(jin)行校正，在圖5和(he)(he)圖6中示(shi)出作為(wei)其依據(ju)的(de)實驗數據(ju)。圖5和(he)(he)圖6的(de)數據(ju)是以(yi)直(zhi)徑為(wei)φ0.2的(de)加(jia)(jia)工(gong)(gong)(gong)用電(dian)極(ji)將(jiang)被加(jia)(jia)工(gong)(gong)(gong)物加(jia)(jia)工(gong)(gong)(gong)成鋼的(de)板厚為(wei)60mm時(shi)的(de)數據(ju)。圖5和(he)(he)圖6示(shi)出相同(tong)的(de)數據(ju)，將(jiang)圖6利用加(jia)(jia)工(gong)(gong)(gong)電(dian)壓(ya)、側(ce)(ce)間(jian)(jian)隙來表(biao)示(shi)的(de)圖是圖5。圖5表(biao)示(shi)極(ji)間(jian)(jian)平(ping)均加(jia)(jia)工(gong)(gong)(gong)電(dian)壓(ya)(X軸)和(he)(he)側(ce)(ce)間(jian)(jian)隙(Z軸)之間(jian)(jian)的(de)關系(xi)的(de)一個例子，根據(ju)該圖可(ke)知(zhi)即(ji)使極(ji)間(jian)(jian)平(ping)均加(jia)(jia)工(gong)(gong)(gong)電(dian)壓(ya)恒(heng)(heng)定，側(ce)(ce)間(jian)(jian)隙也不一定恒(heng)(heng)定。即(ji)，可(ke)知(zhi)即(ji)使以(yi)使得(de)極(ji)間(jian)(jian)平(ping)均加(jia)(jia)工(gong)(gong)(gong)電(dian)壓(ya)與(yu)設定電(dian)壓(ya)一致的(de)方(fang)式進(jin)行現有的(de)控制，也不能使側(ce)(ce)間(jian)(jian)隙恒(heng)(heng)定為(wei)進(jin)行形狀修正加(jia)(jia)工(gong)(gong)(gong)時(shi)所(suo)需的(de)精度的(de)水平(ping)。

對圖(tu)(tu)5追加(jia)(jia)了加(jia)(jia)工(gong)速(su)(su)度(du)的(de)(de)(de)(de)指標所(suo)得到(dao)的(de)(de)(de)(de)圖(tu)(tu)6是表示(shi)極(ji)(ji)(ji)(ji)間(jian)(jian)(jian)(jian)平(ping)均加(jia)(jia)工(gong)電壓(ya)(X軸)、加(jia)(jia)工(gong)速(su)(su)度(du)(Y軸)、側間(jian)(jian)(jian)(jian)隙(xi)(Z軸)的(de)(de)(de)(de)關(guan)系的(de)(de)(de)(de)一(yi)個例子的(de)(de)(de)(de)圖(tu)(tu)形。如圖(tu)(tu)6所(suo)示(shi)，即(ji)使是相同(tong)(tong)的(de)(de)(de)(de)極(ji)(ji)(ji)(ji)間(jian)(jian)(jian)(jian)平(ping)均加(jia)(jia)工(gong)電壓(ya)而側間(jian)(jian)(jian)(jian)隙(xi)也(ye)(ye)不(bu)同(tong)(tong)的(de)(de)(de)(de)現象(xiang)與加(jia)(jia)工(gong)速(su)(su)度(du)緊密(mi)相關(guan)。具(ju)體而言，加(jia)(jia)工(gong)速(su)(su)度(du)變得越慢(man)則(ze)即(ji)使是相同(tong)(tong)的(de)(de)(de)(de)極(ji)(ji)(ji)(ji)間(jian)(jian)(jian)(jian)平(ping)均加(jia)(jia)工(gong)電壓(ya)，側間(jian)(jian)(jian)(jian)隙(xi)也(ye)(ye)越大。即(ji)，如圖(tu)(tu)5、圖(tu)(tu)6所(suo)示(shi)，為了提高形狀(zhuang)修正加(jia)(jia)工(gong)的(de)(de)(de)(de)精度(du)，除(chu)了使極(ji)(ji)(ji)(ji)間(jian)(jian)(jian)(jian)平(ping)均加(jia)(jia)工(gong)電壓(ya)接近設定電壓(ya)的(de)(de)(de)(de)控制以外，還需要獲取到(dao)加(jia)(jia)工(gong)速(su)(su)度(du)的(de)(de)(de)(de)控制方式。此外，詳細(xi)內容在(zai)后(hou)面記述(shu)，但關(guan)于圖(tu)(tu)5、圖(tu)(tu)6，已(yi)確認到(dao)，即(ji)使加(jia)(jia)工(gong)用電極(ji)(ji)(ji)(ji)直徑(jing)、被加(jia)(jia)工(gong)物等(deng)的(de)(de)(de)(de)加(jia)(jia)工(gong)條件變化，傾(qing)向(后(hou)述(shu)的(de)(de)(de)(de)式(4))也(ye)(ye)不(bu)變。

根據上述的(de)(de)(de)實(shi)驗結(jie)果(guo)，如果(guo)以(yi)1階近似的(de)(de)(de)方式求(qiu)出側間(jian)隙、極(ji)間(jian)平(ping)均(jun)加(jia)工(gong)電壓、加(jia)工(gong)速度(du)的(de)(de)(de)相(xiang)互關系，則得到式(1)的(de)(de)(de)關系式。這里，SideGap代(dai)表(biao)(biao)側間(jian)隙的(de)(de)(de)測(ce)定(ding)值，FC代(dai)表(biao)(biao)加(jia)工(gong)速度(du)的(de)(de)(de)測(ce)定(ding)值，VG代(dai)表(biao)(biao)極(ji)間(jian)平(ping)均(jun)加(jia)工(gong)電壓的(de)(de)(de)測(ce)定(ding)值，i代(dai)表(biao)(biao)實(shi)驗數據的(de)(de)(de)編號(i＝1…N)。

SideGap(i)＝A×FC(i)+B×VG(i)+Offset…(1)

如式(1)所示，加工(gong)(gong)速度、極間平(ping)均加工(gong)(gong)電壓(ya)和側間隙是實(shi)驗值，針對每(mei)點(dian)而具有不同的值，但A、B、Offset是固定值。利用式(1)，能夠根據(ju)第(i)個(ge)實(shi)驗數據(ju)和第(i+1)個(ge)實(shi)驗數據(ju)的差得到式(2)的關(guan)系式。

SideGap(i+1)－SideGap(i)＝A×(FC(i+1)－FC(i))+B×(VG(i+1)－VG(i))…(2)

如果為了實現使形狀修正(zheng)加(jia)工(gong)中(zhong)的(de)(de)側(ce)間(jian)隙(xi)恒定的(de)(de)目的(de)(de)，求出在相(xiang)同側(ce)間(jian)隙(xi)時(shi)加(jia)工(gong)速(su)度和(he)極間(jian)平均(jun)加(jia)工(gong)電壓(ya)(ya)之(zhi)間(jian)的(de)(de)關系，則成(cheng)為式(3)。這里，ΔFC是第(di)(di)(i+1)個速(su)度和(he)第(di)(di)(i)個速(su)度的(de)(de)差(cha)，ΔVG是第(di)(di)(i+1)個電壓(ya)(ya)和(he)第(di)(di)(i)個電壓(ya)(ya)的(de)(de)差(cha)。

0＝A×(FC(i+1)－FC(i))+B×(VG(i+1)－VG(i))＝A×ΔFC+B×ΔVG…(3)

可知在(zai)(zai)側間隙恒定的情況下，在(zai)(zai)極間平(ping)均(jun)加工電(dian)壓(ya)和加工速度之間存在(zai)(zai)式(4)的關系。

ΔVG＝－(A/B)×ΔFC…(4)

根(gen)據以(yi)上的(de)形(xing)狀(zhuang)修正加(jia)(jia)工的(de)實(shi)驗分(fen)析(xi)可知，側間隙不(bu)僅根(gen)據極(ji)間平均(jun)加(jia)(jia)工電(dian)壓(ya)而(er)變(bian)化，還(huan)根(gen)據加(jia)(jia)工速度(du)而(er)變(bian)化，其關系式能夠表達為(wei)如式(1)那樣。基(ji)于(yu)上述見解，為(wei)了使側間隙恒定，需要(yao)如式(4)的(de)右邊那樣根(gen)據加(jia)(jia)工速度(du)的(de)變(bian)換而(er)對極(ji)間平均(jun)加(jia)(jia)工電(dian)壓(ya)進行校正。

此外(wai)，在(zai)(zai)本實(shi)施方(fang)式(shi)中，式(shi)(4)的(de)左邊(bian)設(she)(she)為相對于存儲(chu)在(zai)(zai)設(she)(she)定(ding)(ding)電壓存儲(chu)部(bu)6的(de)設(she)(she)定(ding)(ding)電壓的(de)差值(zhi)，右邊(bian)設(she)(she)為相對于存儲(chu)在(zai)(zai)設(she)(she)定(ding)(ding)速度(du)存儲(chu)部(bu)10的(de)設(she)(she)定(ding)(ding)速度(du)的(de)差值(zhi)。另(ling)外(wai)，圖5以及圖6是在(zai)(zai)加(jia)(jia)工(gong)用電極直徑為BSφ0.2、被加(jia)(jia)工(gong)物為St60t的(de)情(qing)況下(xia)的(de)數(shu)據，在(zai)(zai)任(ren)意的(de)加(jia)(jia)工(gong)條件下(xia)側(ce)間隙、加(jia)(jia)工(gong)速度(du)、極間平均加(jia)(jia)工(gong)電壓的(de)關(guan)系滿足(4)式(shi)的(de)情(qing)況已通過(guo)實(shi)驗確認完畢。

因此，對于設(she)(she)(she)(she)定(ding)(ding)速(su)(su)度以(yi)(yi)及系(xi)數(shu)A/B，可(ke)以(yi)(yi)在系(xi)統(tong)中(zhong)決(jue)定(ding)(ding)，也可(ke)以(yi)(yi)通過NC上的(de)加工條件任意地(di)設(she)(she)(she)(she)定(ding)(ding)。這里，設(she)(she)(she)(she)定(ding)(ding)速(su)(su)度的(de)決(jue)定(ding)(ding)方法可(ke)以(yi)(yi)根據加工條件而(er)變更，也可(ke)以(yi)(yi)設(she)(she)(she)(she)為(wei)統(tong)一的(de)值。作為(wei)設(she)(she)(she)(she)定(ding)(ding)速(su)(su)度的(de)例(li)子，例(li)如可(ke)以(yi)(yi)統(tong)一地(di)設(she)(she)(she)(she)定(ding)(ding)為(wei)1.0mm/min。

在系統中決(jue)定(ding)(ding)設(she)(she)定(ding)(ding)速度的(de)(de)情(qing)況(kuang)下，為了根據加(jia)工(gong)用(yong)電極(ji)的(de)(de)直徑或(huo)材(cai)質、以及(ji)被加(jia)工(gong)物的(de)(de)板厚或(huo)材(cai)質而(er)設(she)(she)定(ding)(ding)不同的(de)(de)值而(er)可(ke)以具有表，在根據加(jia)工(gong)條件(jian)而(er)決(jue)定(ding)(ding)的(de)(de)情(qing)況(kuang)下，也可(ke)以設(she)(she)為固定(ding)(ding)值。只要(yao)是根據所要(yao)求(qiu)的(de)(de)形狀修(xiu)正精度而(er)設(she)(she)定(ding)(ding)適當(dang)的(de)(de)設(she)(she)定(ding)(ding)速度的(de)(de)決(jue)定(ding)(ding)方(fang)法即(ji)可(ke)。

這里所示(shi)的(de)設定速度和系(xi)數代表控制的(de)增益(yi)和偏差，本發明的(de)控制方(fang)式(shi)是在1次加(jia)工過程中，根據(ju)加(jia)工場(chang)所、對應于加(jia)工行進(jin)方(fang)向(xiang)的(de)方(fang)向(xiang)而(er)與加(jia)工情況匹配地(di)、實時地(di)進(jin)行校正。

基于式(1)至式(4)的(de)關(guan)系式，在圖7中示出本(ben)發明(ming)的(de)實施(shi)方式1的(de)線放電(dian)(dian)加(jia)工(gong)機(ji)中的(de)控制(zhi)(zhi)過程(cheng)。圖7示出在以使(shi)圖4的(de)進行現有(you)的(de)控制(zhi)(zhi)的(de)線放電(dian)(dian)加(jia)工(gong)機(ji)的(de)極間平(ping)均加(jia)工(gong)電(dian)(dian)壓(ya)(ya)(ya)與設定電(dian)(dian)壓(ya)(ya)(ya)一致(zhi)的(de)控制(zhi)(zhi)為(wei)基礎，將由式(4)的(de)加(jia)工(gong)速度引起的(de)電(dian)(dian)壓(ya)(ya)(ya)校正運(yun)算為(wei)極間平(ping)均加(jia)工(gong)電(dian)(dian)壓(ya)(ya)(ya)的(de)控制(zhi)(zhi)。

設(she)定(ding)(ding)電(dian)壓VR是(shi)(shi)預先設(she)定(ding)(ding)于圖3的(de)設(she)定(ding)(ding)電(dian)壓存(cun)儲(chu)部(bu)6的(de)設(she)定(ding)(ding)電(dian)壓，極(ji)間平(ping)均(jun)加(jia)(jia)工(gong)電(dian)壓VG是(shi)(shi)圖3的(de)極(ji)間平(ping)均(jun)加(jia)(jia)工(gong)電(dian)壓檢測(ce)(ce)(ce)部(bu)5所檢測(ce)(ce)(ce)出(chu)的(de)測(ce)(ce)(ce)定(ding)(ding)值，校(xiao)正系數C是(shi)(shi)式(4)的(de)A/B，加(jia)(jia)工(gong)速(su)(su)度FC是(shi)(shi)從(cong)圖3的(de)加(jia)(jia)工(gong)速(su)(su)度控制部(bu)8輸出(chu)的(de)加(jia)(jia)工(gong)速(su)(su)度。

此外，這里簡單地將(jiang)電源和速度(du)(du)之間的關系表示(shi)為一階(jie)公式，但(dan)為了(le)更提高(gao)(gao)精度(du)(du)也可以(yi)設為高(gao)(gao)階(jie)。在高(gao)(gao)階(jie)的情(qing)況下，式(4)表示(shi)為如下所示(shi)。

ΔVG＝C₁×ΔFC+C₂×ΔFC²+C₃×ΔFC³+…(5)

這里的C₁、C₂、C₃…是各階的系數。例如式(4)的一階的系數“－(A/B)”與C₁相當。本發明的(de)特征是(shi)對速度變動量進行反(fan)饋而對電壓(ya)進行校正，因(yin)此速度變動量的(de)反(fan)饋時(shi)的(de)階數可以(yi)是(shi)任意的(de)。

下面，對(dui)圖(tu)7的(de)處理進(jin)行說明。首先，從(cong)極(ji)間平均加(jia)工(gong)(gong)(gong)電壓檢測(ce)部(bu)5所(suo)檢測(ce)的(de)值(zhi)VG減(jian)(jian)去對(dui)加(jia)工(gong)(gong)(gong)速(su)(su)度(du)FC和(he)設(she)(she)定(ding)速(su)(su)度(du)FA的(de)差值(zhi)乘以校(xiao)正(zheng)系數C所(suo)得到的(de)值(zhi)。將減(jian)(jian)法運算后的(de)值(zhi)從(cong)設(she)(she)定(ding)電壓VR中(zhong)減(jian)(jian)去，與現有技術相同地(di)，進(jin)行從(cong)極(ji)間加(jia)工(gong)(gong)(gong)電壓向加(jia)工(gong)(gong)(gong)速(su)(su)度(du)FC的(de)變換(控(kong)制箱(xiang))。該變換也如圖(tu)3中(zhong)說明的(de)那樣，由于不(bu)是(shi)本發明的(de)實質，因(yin)此省略(lve)。利用其結果所(suo)計算出(chu)的(de)加(jia)工(gong)(gong)(gong)速(su)(su)度(du)FC，圖(tu)3的(de)驅動(dong)控(kong)制裝置9進(jin)行驅動(dong)控(kong)制，加(jia)工(gong)(gong)(gong)速(su)(su)度(du)FC和(he)設(she)(she)定(ding)速(su)(su)度(du)FA的(de)差值(zhi)被(bei)輸入至(zhi)電壓校(xiao)正(zheng)值(zhi)運算部(bu)11以與校(xiao)正(zheng)系數C相乘。

圖(tu)8是表示通過本發(fa)明的(de)(de)實(shi)施(shi)方式1的(de)(de)線放電(dian)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)機的(de)(de)控(kong)(kong)制(zhi)實(shi)現(xian)的(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)(su)度(du)(du)與(yu)通過現(xian)有(you)(you)的(de)(de)控(kong)(kong)制(zhi)實(shi)現(xian)的(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)(su)度(du)(du)的(de)(de)對比(bi)的(de)(de)圖(tu)形(xing)(xing)。橫軸是極(ji)(ji)(ji)間(jian)(jian)平(ping)均加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)電(dian)壓(ya)(ya)，縱軸是加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)(su)度(du)(du)，實(shi)線是本發(fa)明的(de)(de)實(shi)施(shi)方式1的(de)(de)線放電(dian)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)機的(de)(de)控(kong)(kong)制(zhi)的(de)(de)圖(tu)形(xing)(xing)，虛線是現(xian)有(you)(you)的(de)(de)控(kong)(kong)制(zhi)的(de)(de)圖(tu)形(xing)(xing)。無(wu)論在(zai)現(xian)有(you)(you)的(de)(de)控(kong)(kong)制(zhi)中(zhong)(zhong)還(huan)是在(zai)本發(fa)明中(zhong)(zhong)，極(ji)(ji)(ji)間(jian)(jian)平(ping)均加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)電(dian)壓(ya)(ya)和設(she)定電(dian)壓(ya)(ya)的(de)(de)差沿正(zheng)(zheng)向(xiang)(xiang)越(yue)大(da)(da)則加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)(su)度(du)(du)越(yue)快，極(ji)(ji)(ji)間(jian)(jian)平(ping)均加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)電(dian)壓(ya)(ya)和設(she)定電(dian)壓(ya)(ya)的(de)(de)差沿負(fu)向(xiang)(xiang)越(yue)大(da)(da)則加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)(su)度(du)(du)越(yue)慢(man)。其中(zhong)(zhong)，在(zai)本發(fa)明中(zhong)(zhong)，基于由式(4)或者(5)表示的(de)(de)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)(su)度(du)(du)和設(she)定速(su)(su)(su)度(du)(du)的(de)(de)差值而(er)進行了(le)極(ji)(ji)(ji)間(jian)(jian)平(ping)均加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)電(dian)壓(ya)(ya)的(de)(de)校(xiao)(xiao)正(zheng)(zheng)，加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)(su)度(du)(du)越(yue)快則極(ji)(ji)(ji)間(jian)(jian)平(ping)均加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)電(dian)壓(ya)(ya)校(xiao)(xiao)正(zheng)(zheng)值沿負(fu)向(xiang)(xiang)越(yue)大(da)(da)，因(yin)此(ci)其結果(guo)，與(yu)現(xian)有(you)(you)的(de)(de)控(kong)(kong)制(zhi)相(xiang)比(bi)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)(su)度(du)(du)變慢(man)。另外，加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)(su)度(du)(du)變得(de)越(yue)慢(man)則極(ji)(ji)(ji)間(jian)(jian)平(ping)均加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)電(dian)壓(ya)(ya)校(xiao)(xiao)正(zheng)(zheng)值沿正(zheng)(zheng)向(xiang)(xiang)越(yue)大(da)(da)，因(yin)此(ci)其結果(guo)，與(yu)現(xian)有(you)(you)的(de)(de)控(kong)(kong)制(zhi)相(xiang)比(bi)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)(su)度(du)(du)變快。

這(zhe)樣，根據加工(gong)速度(du)和設定速度(du)的(de)差值而(er)對極間平均(jun)加工(gong)電壓(ya)進(jin)行校正，由此能(neng)(neng)夠應對變化的(de)加工(gong)量，能(neng)(neng)夠抑制因(yin)放電間隙的(de)生(sheng)長引起的(de)側(ce)間隙的(de)波動(dong)，因(yin)此能(neng)(neng)夠在形狀(zhuang)修正加工(gong)時提高(gao)加工(gong)精度(du)。

實施方式2.

圖(tu)9是(shi)表示(shi)本發明的(de)(de)(de)實(shi)(shi)(shi)施(shi)方式(shi)2的(de)(de)(de)線(xian)放電(dian)加(jia)工(gong)機的(de)(de)(de)構造和控(kong)制結構的(de)(de)(de)圖(tu)。實(shi)(shi)(shi)施(shi)方式(shi)2所提(ti)示(shi)的(de)(de)(de)技術的(de)(de)(de)特征在于(yu)，與(yu)實(shi)(shi)(shi)施(shi)方式(shi)1相(xiang)同(tong)(tong)地(di)，基于(yu)加(jia)工(gong)速(su)度(du)對(dui)(dui)電(dian)壓(ya)進行(xing)校(xiao)正，與(yu)實(shi)(shi)(shi)施(shi)方式(shi)1(圖(tu)3)不同(tong)(tong)的(de)(de)(de)方面在于(yu)，相(xiang)對(dui)(dui)于(yu)設定電(dian)壓(ya)而對(dui)(dui)根據加(jia)工(gong)速(su)度(du)求出的(de)(de)(de)極間(jian)平均加(jia)工(gong)電(dian)壓(ya)校(xiao)正值(zhi)進行(xing)校(xiao)正，而不是(shi)相(xiang)對(dui)(dui)于(yu)極間(jian)平均加(jia)工(gong)電(dian)壓(ya)檢測部5所檢測的(de)(de)(de)電(dian)壓(ya)。

在圖(tu)9中(zhong)，與圖(tu)3不同(tong)(tong)之處在于，存在設定電(dian)壓(ya)(ya)校(xiao)正部(bu)13以取代(dai)極間(jian)(jian)平(ping)均加工電(dian)壓(ya)(ya)校(xiao)正部(bu)12，在電(dian)壓(ya)(ya)運算部(bu)7中(zhong)對(dui)設定電(dian)壓(ya)(ya)校(xiao)正部(bu)13校(xiao)正后(hou)的(de)設定電(dian)壓(ya)(ya)和極間(jian)(jian)平(ping)均加工電(dian)壓(ya)(ya)檢(jian)(jian)測(ce)部(bu)5檢(jian)(jian)測(ce)出的(de)極間(jian)(jian)平(ping)均加工電(dian)壓(ya)(ya)的(de)差進行運算。此(ci)外，對(dui)與圖(tu)3相同(tong)(tong)的(de)部(bu)位(wei)，標(biao)注(zhu)了相同(tong)(tong)的(de)標(biao)號。

在(zai)(zai)本實施方(fang)式(shi)(shi)中，對設(she)定電壓進(jin)行校正(zheng)而(er)不(bu)是極(ji)間平均(jun)加工電壓，因此符號與對極(ji)間平均(jun)加工電壓進(jin)行校正(zheng)的校正(zheng)式(shi)(shi)相反(fan)。即，為了(le)在(zai)(zai)控制中使用而(er)需要將式(shi)(shi)(4)設(she)為下面(mian)的式(shi)(shi)(6)。

ΔVG′＝(A/B)×ΔFC (6)

圖(tu)10是(shi)表示本發明的(de)(de)實(shi)施(shi)方式2的(de)(de)線(xian)放電加工機中的(de)(de)控制過程的(de)(de)框圖(tu)。與(yu)圖(tu)7的(de)(de)差(cha)(cha)異在于，從(cong)設(she)定(ding)電壓VR中減(jian)去(qu)對設(she)定(ding)速(su)度FA和加工速(su)度FC的(de)(de)差(cha)(cha)值乘以校(xiao)(xiao)正系數C而得到的(de)(de)值。從(cong)設(she)定(ding)電壓減(jian)去(qu)校(xiao)(xiao)正值的(de)(de)運(yun)算是(shi)在圖(tu)9的(de)(de)設(she)定(ding)電壓校(xiao)(xiao)正部13中進(jin)行(xing)的(de)(de)。其他內(nei)容與(yu)圖(tu)7相同，因此省略說明。

圖(tu)(tu)11是(shi)表示通過實(shi)施方式(shi)2的(de)(de)(de)(de)線放電(dian)(dian)(dian)(dian)加(jia)工(gong)機中(zhong)(zhong)的(de)(de)(de)(de)控(kong)(kong)制(zhi)實(shi)現(xian)的(de)(de)(de)(de)加(jia)工(gong)速(su)度(du)(du)(du)和(he)通過現(xian)有(you)控(kong)(kong)制(zhi)實(shi)現(xian)的(de)(de)(de)(de)加(jia)工(gong)速(su)度(du)(du)(du)的(de)(de)(de)(de)對(dui)比的(de)(de)(de)(de)圖(tu)(tu)形。橫軸是(shi)極間(jian)平(ping)(ping)(ping)均(jun)(jun)加(jia)工(gong)電(dian)(dian)(dian)(dian)壓，縱軸是(shi)加(jia)工(gong)速(su)度(du)(du)(du)，虛線是(shi)現(xian)有(you)的(de)(de)(de)(de)控(kong)(kong)制(zhi)的(de)(de)(de)(de)圖(tu)(tu)形，實(shi)線是(shi)基(ji)于本發明的(de)(de)(de)(de)實(shi)施方式(shi)2的(de)(de)(de)(de)控(kong)(kong)制(zhi)的(de)(de)(de)(de)設(she)定(ding)電(dian)(dian)(dian)(dian)壓。根據極間(jian)平(ping)(ping)(ping)均(jun)(jun)加(jia)工(gong)電(dian)(dian)(dian)(dian)壓和(he)設(she)定(ding)電(dian)(dian)(dian)(dian)壓的(de)(de)(de)(de)差(cha)的(de)(de)(de)(de)大小(xiao)和(he)符號而(er)對(dui)加(jia)工(gong)速(su)度(du)(du)(du)進行控(kong)(kong)制(zhi)的(de)(de)(de)(de)情(qing)況與實(shi)施方式(shi)1相同(tong)。在加(jia)工(gong)速(su)度(du)(du)(du)變快時(shi)，將設(she)定(ding)電(dian)(dian)(dian)(dian)壓向正(zheng)(zheng)(zheng)(zheng)方向校(xiao)正(zheng)(zheng)(zheng)(zheng)，校(xiao)正(zheng)(zheng)(zheng)(zheng)后的(de)(de)(de)(de)設(she)定(ding)電(dian)(dian)(dian)(dian)壓變高，在加(jia)工(gong)速(su)度(du)(du)(du)變慢時(shi)，將設(she)定(ding)電(dian)(dian)(dian)(dian)壓向負方向校(xiao)正(zheng)(zheng)(zheng)(zheng)，校(xiao)正(zheng)(zheng)(zheng)(zheng)后的(de)(de)(de)(de)設(she)定(ding)電(dian)(dian)(dian)(dian)壓變低。這樣，在實(shi)施方式(shi)2中(zhong)(zhong)，極間(jian)平(ping)(ping)(ping)均(jun)(jun)加(jia)工(gong)電(dian)(dian)(dian)(dian)壓如(ru)現(xian)有(you)技術(shu)那樣，使用測定(ding)出(chu)的(de)(de)(de)(de)結(jie)果和(he)校(xiao)正(zheng)(zheng)(zheng)(zheng)后的(de)(de)(de)(de)設(she)定(ding)電(dian)(dian)(dian)(dian)壓，計算出(chu)ΔVG’。(因(yin)此，圖(tu)(tu)10的(de)(de)(de)(de)極間(jian)平(ping)(ping)(ping)均(jun)(jun)加(jia)工(gong)電(dian)(dian)(dian)(dian)壓和(he)設(she)定(ding)電(dian)(dian)(dian)(dian)壓的(de)(de)(de)(de)差(cha)即ΔVG’是(shi)與實(shi)施例(li)1的(de)(de)(de)(de)ΔVG相同(tong)的(de)(de)(de)(de)值，通過校(xiao)正(zheng)(zheng)(zheng)(zheng)實(shi)現(xian)的(de)(de)(de)(de)伺(si)服(fu)速(su)度(du)(du)(du)的(de)(de)(de)(de)變換也等同(tong))。

通(tong)過實(shi)(shi)施(shi)方式(shi)2實(shi)(shi)現(xian)的(de)效果與實(shi)(shi)施(shi)方式(shi)1相(xiang)同(tong)地，通(tong)過基于加(jia)(jia)工速度進行的(de)設定(ding)電壓的(de)校正，能(neng)夠考慮與所需的(de)加(jia)(jia)工量相(xiang)應的(de)加(jia)(jia)工、放(fang)電間隙的(de)生長(chang)，能(neng)夠使(shi)側間隙恒定(ding)。即，能(neng)夠在形狀修正加(jia)(jia)工中提高加(jia)(jia)工精(jing)度。

實施方式3.

實(shi)(shi)施方(fang)式(shi)(shi)(shi)3與實(shi)(shi)施方(fang)式(shi)(shi)(shi)1的(de)(de)線放(fang)電加(jia)工(gong)機相同地，具有圖3的(de)(de)構造。在(zai)(zai)實(shi)(shi)施方(fang)式(shi)(shi)(shi)1中(zhong)，在(zai)(zai)加(jia)工(gong)速度(du)與設(she)定速度(du)偏(pian)離(li)的(de)(de)情(qing)況下(xia)，反饋加(jia)工(gong)速度(du)的(de)(de)差值(zhi)(zhi)，進(jin)(jin)行極(ji)間平均加(jia)工(gong)電壓(ya)的(de)(de)校正，與其相對，在(zai)(zai)實(shi)(shi)施方(fang)式(shi)(shi)(shi)3中(zhong)，在(zai)(zai)加(jia)工(gong)速度(du)以(yi)某(mou)種(zhong)程度(du)偏(pian)離(li)之后，在(zai)(zai)加(jia)工(gong)速度(du)和(he)設(she)定速度(du)的(de)(de)差值(zhi)(zhi)成為規定值(zhi)(zhi)的(de)(de)情(qing)況下(xia)進(jin)(jin)行極(ji)間平均加(jia)工(gong)電壓(ya)的(de)(de)校正。

圖(tu)12是(shi)表示(shi)通(tong)過(guo)實(shi)(shi)(shi)施方(fang)式(shi)3的(de)線(xian)放電(dian)(dian)(dian)加(jia)(jia)(jia)工(gong)(gong)(gong)機中的(de)控制實(shi)(shi)(shi)現(xian)的(de)加(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)度和通(tong)過(guo)現(xian)有(you)控制實(shi)(shi)(shi)現(xian)的(de)加(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)度的(de)對(dui)(dui)(dui)比(bi)(bi)的(de)圖(tu)形。虛(xu)線(xian)是(shi)通(tong)過(guo)現(xian)有(you)的(de)控制實(shi)(shi)(shi)現(xian)的(de)極間(jian)平均加(jia)(jia)(jia)工(gong)(gong)(gong)電(dian)(dian)(dian)壓(ya)(ya)，實(shi)(shi)(shi)線(xian)是(shi)通(tong)過(guo)本實(shi)(shi)(shi)施方(fang)式(shi)實(shi)(shi)(shi)現(xian)的(de)極間(jian)平均加(jia)(jia)(jia)工(gong)(gong)(gong)電(dian)(dian)(dian)壓(ya)(ya)。例如，在(zai)設定(ding)(ding)(ding)(ding)加(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)度為6.0mm/min、規定(ding)(ding)(ding)(ding)值(zhi)(zhi)為1.0mm/min的(de)情況下(xia)，在(zai)利用(yong)極間(jian)電(dian)(dian)(dian)壓(ya)(ya)和設定(ding)(ding)(ding)(ding)電(dian)(dian)(dian)壓(ya)(ya)的(de)差計算出的(de)加(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)度處于6.1mm/min、6.2mm/min…6.9mm/min的(de)期間(jian)按照(zhao)(zhao)通(tong)常的(de)控制而進(jin)(jin)行(xing)(xing)控制，但如果(guo)加(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)度為7.0mm/min，則(ze)利用(yong)對(dui)(dui)(dui)相對(dui)(dui)(dui)于設定(ding)(ding)(ding)(ding)加(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)度的(de)差值(zhi)(zhi)即(7.0－6.0)mm/min乘以校(xiao)(xiao)(xiao)正(zheng)系數所(suo)得到的(de)值(zhi)(zhi)而對(dui)(dui)(dui)極間(jian)平均加(jia)(jia)(jia)工(gong)(gong)(gong)電(dian)(dian)(dian)壓(ya)(ya)進(jin)(jin)行(xing)(xing)校(xiao)(xiao)(xiao)對(dui)(dui)(dui)，利用(yong)新校(xiao)(xiao)(xiao)正(zheng)后的(de)極間(jian)平均加(jia)(jia)(jia)工(gong)(gong)(gong)電(dian)(dian)(dian)壓(ya)(ya)進(jin)(jin)行(xing)(xing)控制。即使加(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)度比(bi)(bi)設定(ding)(ding)(ding)(ding)加(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)度慢，按照(zhao)(zhao)上述方(fang)式(shi)在(zai)加(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)度的(de)差值(zhi)(zhi)變得比(bi)(bi)規定(ding)(ding)(ding)(ding)值(zhi)(zhi)大之前，也不校(xiao)(xiao)(xiao)正(zheng)極間(jian)平均加(jia)(jia)(jia)工(gong)(gong)(gong)電(dian)(dian)(dian)壓(ya)(ya)，如果(guo)加(jia)(jia)(jia)工(gong)(gong)(gong)速(su)(su)度差值(zhi)(zhi)比(bi)(bi)規定(ding)(ding)(ding)(ding)值(zhi)(zhi)大，則(ze)對(dui)(dui)(dui)極間(jian)平均加(jia)(jia)(jia)工(gong)(gong)(gong)電(dian)(dian)(dian)壓(ya)(ya)進(jin)(jin)行(xing)(xing)校(xiao)(xiao)(xiao)正(zheng)。

在本實施方式(shi)中，在形狀修(xiu)正加(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)序中，即使在加(jia)(jia)工(gong)(gong)(gong)電(dian)壓由于前加(jia)(jia)工(gong)(gong)(gong)的(de)(de)加(jia)(jia)工(gong)(gong)(gong)面(mian)粗糙(cao)度而急劇地變動的(de)(de)情(qing)(qing)況下(xia)，也能(neng)夠(gou)通過(guo)極(ji)間(jian)(jian)平均(jun)(jun)加(jia)(jia)工(gong)(gong)(gong)電(dian)壓而應對(dui)因某(mou)種程度的(de)(de)加(jia)(jia)工(gong)(gong)(gong)面(mian)粗糙(cao)度引起(qi)的(de)(de)變動，在加(jia)(jia)工(gong)(gong)(gong)面(mian)的(de)(de)去(qu)除量平均(jun)(jun)地變動的(de)(de)情(qing)(qing)況下(xia)，能(neng)夠(gou)對(dui)極(ji)間(jian)(jian)平均(jun)(jun)加(jia)(jia)工(gong)(gong)(gong)電(dian)壓進(jin)行校正，因此能(neng)夠(gou)實現側間(jian)(jian)隙(xi)恒定(ding)的(de)(de)加(jia)(jia)工(gong)(gong)(gong)。

此(ci)外(wai)，可以在(zai)圖3的(de)(de)(de)電(dian)壓(ya)校(xiao)正值運(yun)算(suan)部11中(zhong)，在(zai)加(jia)工速度的(de)(de)(de)差值變(bian)得(de)比規定值大(da)之前將極間平均(jun)加(jia)工電(dian)壓(ya)校(xiao)正值設為0而輸出至極間平均(jun)加(jia)工電(dian)壓(ya)校(xiao)正部12，或者也可以在(zai)極間平均(jun)加(jia)工電(dian)壓(ya)校(xiao)正部12中(zhong)，在(zai)加(jia)工速度的(de)(de)(de)差值變(bian)得(de)比規定值大(da)之前不對與極間平均(jun)加(jia)工電(dian)壓(ya)的(de)(de)(de)差值進(jin)行計算(suan)。

這里，可以預(yu)先持(chi)有基于加工速度的差值(zhi)的絕對值(zhi)而實(shi)施(shi)的校(xiao)正系數(shu)(shu)(shu)的表(biao)，使校(xiao)正系數(shu)(shu)(shu)對應于差值(zhi)的絕對值(zhi)而變化。這樣，與(yu)使校(xiao)正系數(shu)(shu)(shu)恒定的情況相比，形(xing)狀修正精度的提高效果增大。

實施方式4.

實(shi)(shi)施(shi)(shi)方式(shi)(shi)4與(yu)實(shi)(shi)施(shi)(shi)方式(shi)(shi)2的(de)(de)(de)(de)線(xian)放(fang)電(dian)(dian)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)機相同(tong)地，具有(you)(you)圖9的(de)(de)(de)(de)構造。在實(shi)(shi)施(shi)(shi)方式(shi)(shi)4中，在進行設(she)(she)定(ding)(ding)電(dian)(dian)壓(ya)(ya)(ya)的(de)(de)(de)(de)校(xiao)正時，與(yu)實(shi)(shi)施(shi)(shi)方式(shi)(shi)3相同(tong)地，如果利(li)用極間(jian)平均加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)電(dian)(dian)壓(ya)(ya)(ya)和(he)設(she)(she)定(ding)(ding)電(dian)(dian)壓(ya)(ya)(ya)的(de)(de)(de)(de)差(cha)(cha)而(er)計算的(de)(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)速(su)(su)度與(yu)設(she)(she)定(ding)(ding)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)速(su)(su)度的(de)(de)(de)(de)差(cha)(cha)值大于(yu)(yu)或(huo)等(deng)于(yu)(yu)某種程度，則對(dui)設(she)(she)定(ding)(ding)電(dian)(dian)壓(ya)(ya)(ya)進行校(xiao)正，以(yi)新校(xiao)正后的(de)(de)(de)(de)電(dian)(dian)壓(ya)(ya)(ya)為基準(zhun)，進行利(li)用與(yu)極間(jian)平均加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)電(dian)(dian)壓(ya)(ya)(ya)的(de)(de)(de)(de)差(cha)(cha)值來決(jue)定(ding)(ding)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)速(su)(su)度的(de)(de)(de)(de)控(kong)制(zhi)(zhi)。圖13是表(biao)示通(tong)過(guo)實(shi)(shi)施(shi)(shi)方式(shi)(shi)4的(de)(de)(de)(de)線(xian)放(fang)電(dian)(dian)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)機中的(de)(de)(de)(de)控(kong)制(zhi)(zhi)實(shi)(shi)現(xian)的(de)(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)速(su)(su)度和(he)通(tong)過(guo)現(xian)有(you)(you)控(kong)制(zhi)(zhi)實(shi)(shi)現(xian)的(de)(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)速(su)(su)度的(de)(de)(de)(de)對(dui)比(bi)的(de)(de)(de)(de)圖形。x＝設(she)(she)定(ding)(ding)電(dian)(dian)壓(ya)(ya)(ya)的(de)(de)(de)(de)線(xian)是通(tong)過(guo)現(xian)有(you)(you)的(de)(de)(de)(de)控(kong)制(zhi)(zhi)實(shi)(shi)現(xian)的(de)(de)(de)(de)極間(jian)平均加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)電(dian)(dian)壓(ya)(ya)(ya)，實(shi)(shi)線(xian)是通(tong)過(guo)本實(shi)(shi)施(shi)(shi)方式(shi)(shi)實(shi)(shi)現(xian)的(de)(de)(de)(de)設(she)(she)定(ding)(ding)電(dian)(dian)壓(ya)(ya)(ya)。

在(zai)該情(qing)(qing)況下(xia)，與實(shi)(shi)施(shi)方式3相同地(di)，在(zai)形狀修正加(jia)工(gong)(gong)工(gong)(gong)序中(zhong)，即使在(zai)加(jia)工(gong)(gong)電壓由于前(qian)加(jia)工(gong)(gong)的加(jia)工(gong)(gong)面粗糙(cao)度(du)而急劇地(di)變動的情(qing)(qing)況下(xia)，也(ye)能(neng)(neng)夠通過極(ji)間(jian)平(ping)均(jun)(jun)加(jia)工(gong)(gong)電壓而應(ying)對(dui)因(yin)某種程度(du)的加(jia)工(gong)(gong)面粗糙(cao)度(du)引起的變動，在(zai)加(jia)工(gong)(gong)面的去除量平(ping)均(jun)(jun)地(di)變動的情(qing)(qing)況下(xia)，能(neng)(neng)夠對(dui)極(ji)間(jian)平(ping)均(jun)(jun)加(jia)工(gong)(gong)電壓進行校正，因(yin)此能(neng)(neng)夠實(shi)(shi)現(xian)側間(jian)隙恒(heng)定的加(jia)工(gong)(gong)。

此外，實施方(fang)式4與實施方(fang)式3相同地，可以(yi)預先持有基(ji)于(yu)(yu)加工速度(du)的差值的絕(jue)對值而實施的校(xiao)正系數的表，使校(xiao)正系數對應于(yu)(yu)差值的絕(jue)對值而變(bian)化。這樣(yang)，與使校(xiao)正系數恒定的情況相比，形(xing)狀修正精度(du)的提高效果增大。

標號的說明

3 電極

4 被加工物

5 極(ji)間平均加(jia)工電壓檢測部

6 設定電壓存儲部

7 電壓運算部

8 加工速度控制部

9 驅動控制裝置

10 設定速度存儲部

11 電壓校正值運算(suan)部

12 極間平均加工電壓校正(zheng)部