今(jin)天就告(gao)訴你，高速(su)機床用絲桿步進電機的優勢(shi)

精度方面：

絲(si)桿步進電(dian)(dian)機(ji)(ji)(ji)(ji)因傳(chuan)動機(ji)(ji)(ji)(ji)構簡單(dan)減少(shao)了插補(bu)滯后的(de)問題，定位(wei)精度(du)、重現精度(du)，CANopen步進電(dian)(dian)機(ji)(ji)(ji)(ji)公司，通過(guo)位(wei)置檢(jian)測(ce)反饋控制(zhi)都(dou)會較“旋(xuan)轉(zhuan)伺(si)服(fu)(fu)(fu)電(dian)(dian)機(ji)(ji)(ji)(ji)滾珠(zhu)絲(si)杠”高(gao)(gao)(gao)，且(qie)(qie)容易(yi)實現。直線(xian)(xian)絲(si)桿步進電(dian)(dian)機(ji)(ji)(ji)(ji)定位(wei)精度(du)可達(da)0.1μm.“旋(xuan)轉(zhuan)伺(si)服(fu)(fu)(fu)電(dian)(dian)機(ji)(ji)(ji)(ji)滾珠(zhu)絲(si)杠”高(gao)(gao)(gao)達(da)到2~5μm，且(qie)(qie)要(yao)求CNC-伺(si)服(fu)(fu)(fu)電(dian)(dian)機(ji)(ji)(ji)(ji)-無(wu)隙(xi)連軸器-止推軸承-冷(leng)卻(que)系統-高(gao)(gao)(gao)精度(du)滾動導軌-螺母座-工(gong)作臺閉環(huan)整(zheng)個系統的(de)傳(chuan)動部分要(yao)輕(qing)量化，光柵精度(du)要(yao)高(gao)(gao)(gao)。若想達(da)到較高(gao)(gao)(gao)平穩性，“旋(xuan)轉(zhuan)伺(si)服(fu)(fu)(fu)電(dian)(dian)機(ji)(ji)(ji)(ji)滾珠(zhu)絲(si)杠”要(yao)采取(qu)雙軸驅動，直線(xian)(xian)絲(si)桿步進電(dian)(dian)機(ji)(ji)(ji)(ji)是高(gao)(gao)(gao)發(fa)熱(re)部件，福建(jian)CANopen步進電(dian)(dian)機(ji)(ji)(ji)(ji)，需采取(qu)強冷(leng)措施，要(yao)達(da)到相同(tong)目的(de)，直線(xian)(xian)絲(si)桿步進電(dian)(dian)機(ji)(ji)(ji)(ji)則要(yao)付(fu)出(chu)更大的(de)代價。

步進電機分類

步(bu)(bu)(bu)進(jin)(jin)(jin)(jin)電機(ji)分三(san)種：永磁式(shi)(shi)(shi)（PM）、反應式(shi)(shi)(shi)（VR）和(he)混(hun)合(he)式(shi)(shi)(shi)（HB）。永磁式(shi)(shi)(shi)步(bu)(bu)(bu)進(jin)(jin)(jin)(jin)一(yi)般(ban)為(wei)兩(liang)(liang)相，轉矩(ju)和(he)體積較(jiao)小，步(bu)(bu)(bu)進(jin)(jin)(jin)(jin)角(jiao)(jiao)(jiao)一(yi)般(ban)為(wei)7.5度或(huo)15度；反應式(shi)(shi)(shi)步(bu)(bu)(bu)進(jin)(jin)(jin)(jin)一(yi)般(ban)為(wei)三(san)相，可實現(xian)大轉矩(ju)輸出，步(bu)(bu)(bu)進(jin)(jin)(jin)(jin)角(jiao)(jiao)(jiao)一(yi)般(ban)為(wei)1.5度，但噪(zao)聲和(he)振(zhen)動都很大，在歐美(mei)等發(fa)達國家80年代已被淘汰；混(hun)合(he)式(shi)(shi)(shi)步(bu)(bu)(bu)進(jin)(jin)(jin)(jin)是指混(hun)合(he)了永磁式(shi)(shi)(shi)和(he)反應式(shi)(shi)(shi)的優(you)點，它又分為(wei)兩(liang)(liang)相和(he)五(wu)(wu)相：兩(liang)(liang)相步(bu)(bu)(bu)進(jin)(jin)(jin)(jin)角(jiao)(jiao)(jiao)一(yi)般(ban)為(wei)1.8度而五(wu)(wu)相步(bu)(bu)(bu)進(jin)(jin)(jin)(jin)角(jiao)(jiao)(jiao)一(yi)般(ban)為(wei)0.72度。

步進電機VS伺服電機

性能比較

控(kong)制精(jing)度(du)：步(bu)(bu)進(jin)(jin)(jin)(jin)電(dian)(dian)(dian)機(ji)(ji)(ji)的相(xiang)數和(he)拍數越(yue)多(duo)，它的準確(que)度(du)就越(yue)高，伺服(fu)(fu)(fu)電(dian)(dian)(dian)機(ji)(ji)(ji)取塊于(yu)自帶的編(bian)碼(ma)器(qi)，編(bian)碼(ma)器(qi)的刻度(du)越(yue)多(duo)，CANopen步(bu)(bu)進(jin)(jin)(jin)(jin)電(dian)(dian)(dian)機(ji)(ji)(ji)價格，精(jing)度(du)就越(yue)高；低(di)頻(pin)特性(xing)(xing)：步(bu)(bu)進(jin)(jin)(jin)(jin)電(dian)(dian)(dian)機(ji)(ji)(ji)在(zai)(zai)(zai)低(di)速(su)(su)(su)(su)時(shi)(shi)易(yi)出(chu)(chu)(chu)現(xian)(xian)(xian)低(di)頻(pin)振動(dong)現(xian)(xian)(xian)象(xiang)(xiang)(xiang)，當(dang)它工(gong)作在(zai)(zai)(zai)低(di)速(su)(su)(su)(su)時(shi)(shi)一(yi)般(ban)(ban)采用阻尼(ni)技(ji)術或(huo)細分技(ji)術來克服(fu)(fu)(fu)低(di)頻(pin)振動(dong)現(xian)(xian)(xian)象(xiang)(xiang)(xiang)，伺服(fu)(fu)(fu)電(dian)(dian)(dian)機(ji)(ji)(ji)運轉(zhuan)(zhuan)(zhuan)非常平穩，即使在(zai)(zai)(zai)低(di)速(su)(su)(su)(su)時(shi)(shi)也不(bu)會出(chu)(chu)(chu)現(xian)(xian)(xian)振動(dong)現(xian)(xian)(xian)象(xiang)(xiang)(xiang)；矩(ju)頻(pin)特性(xing)(xing)：步(bu)(bu)進(jin)(jin)(jin)(jin)電(dian)(dian)(dian)機(ji)(ji)(ji)輸(shu)出(chu)(chu)(chu)力(li)矩(ju)隨(sui)轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su)的升高而下(xia)(xia)降，高速(su)(su)(su)(su)時(shi)(shi)會急(ji)劇下(xia)(xia)降，伺服(fu)(fu)(fu)電(dian)(dian)(dian)機(ji)(ji)(ji)在(zai)(zai)(zai)額(e)定轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su)內為恒力(li)矩(ju)輸(shu)出(chu)(chu)(chu)，在(zai)(zai)(zai)額(e)定轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su)上(shang)為恒功(gong)率輸(shu)出(chu)(chu)(chu)；過載(zai)能(neng)力(li)：步(bu)(bu)進(jin)(jin)(jin)(jin)電(dian)(dian)(dian)機(ji)(ji)(ji)不(bu)具備過載(zai)能(neng)力(li)，伺服(fu)(fu)(fu)電(dian)(dian)(dian)機(ji)(ji)(ji)有較強的過載(zai)能(neng)力(li)；運行性(xing)(xing)能(neng)：步(bu)(bu)進(jin)(jin)(jin)(jin)電(dian)(dian)(dian)機(ji)(ji)(ji)的控(kong)制為開(kai)環(huan)(huan)控(kong)制，啟(qi)動(dong)頻(pin)率過高或(huo)負(fu)載(zai)過大易(yi)丟步(bu)(bu)或(huo)堵轉(zhuan)(zhuan)(zhuan)的現(xian)(xian)(xian)象(xiang)(xiang)(xiang)，停止(zhi)時(shi)(shi)轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su)過高易(yi)出(chu)(chu)(chu)現(xian)(xian)(xian)過沖現(xian)(xian)(xian)象(xiang)(xiang)(xiang)，交流伺服(fu)(fu)(fu)驅(qu)動(dong)系統(tong)為閉環(huan)(huan)控(kong)制，CANopen步(bu)(bu)進(jin)(jin)(jin)(jin)電(dian)(dian)(dian)機(ji)(ji)(ji)公司，驅(qu)動(dong)器(qi)可直(zhi)接對電(dian)(dian)(dian)機(ji)(ji)(ji)編(bian)碼(ma)器(qi)反(fan)饋信號進(jin)(jin)(jin)(jin)行采樣，內部(bu)構成位(wei)置環(huan)(huan)和(he)速(su)(su)(su)(su)度(du)環(huan)(huan)，一(yi)般(ban)(ban)不(bu)會出(chu)(chu)(chu)現(xian)(xian)(xian)步(bu)(bu)進(jin)(jin)(jin)(jin)電(dian)(dian)(dian)機(ji)(ji)(ji)的丟步(bu)(bu)或(huo)過沖的現(xian)(xian)(xian)象(xiang)(xiang)(xiang)，控(kong)制性(xing)(xing)能(neng)更為可靠；速(su)(su)(su)(su)度(du)響應(ying)性(xing)(xing)能(neng)：步(bu)(bu)進(jin)(jin)(jin)(jin)電(dian)(dian)(dian)機(ji)(ji)(ji)從(cong)靜(jing)止(zhi)加速(su)(su)(su)(su)到(dao)工(gong)作轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su)需要(yao)上(shang)百(bai)毫秒，而交流伺服(fu)(fu)(fu)系統(tong)的加速(su)(su)(su)(su)性(xing)(xing)能(neng)較好，一(yi)般(ban)(ban)只需幾毫秒，可用于(yu)要(yao)求快速(su)(su)(su)(su)啟(qi)停的控(kong)制場合。