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原旭朋
QQ6710897
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發(fā)帖數量: 93 個(gè)
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在線(xiàn)時(shí)間: 53(小時(shí))
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樓主  發(fā)表于: 2019-08-26 10:50
圖片:
用臺達EH3絕對定位控制臺達A2私服驅動(dòng)絲桿做往復定位,運行一段時(shí)間后,位置發(fā)生偏移,但是再次回原,位置又正常,應該考慮是哪里問(wèn)題?丟脈沖,驅動(dòng)器或者電機,還是機械部分?聯(lián)軸器檢查了,不松,絲桿聯(lián)軸器這側固定法蘭的對面一側有個(gè)固定螺母,缺失,是否會(huì )影響定位。網(wǎng)上找的圖,就是聯(lián)軸器左側這個(gè)固定螺母缺失,是否會(huì )導致位置發(fā)生偏移不準。
wu32u2
耐得住挫折的打磨,我們將迸發(fā)出比鉆石還璀璨的光芒——
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1樓  發(fā)表于: 2019-08-28 08:19
個(gè)人認為往復運動(dòng)一般不會(huì )產(chǎn)生較大的累積偏移量,伺服電機在停止那一刻會(huì )根據編碼器閉環(huán)自校正停止位置,故伺服電機最后的旋轉方向每次未必相同,而累計誤差是由絲桿間隙(齒輪間隙)在同一方向上的啟停時(shí)多次積累造成。
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