5、机(ji)床(chuang)进给伺服电机(ji)的维(wei)护与保(bao)养(yang)

对于数控车床的(de)(de)(de)(de)伺(si)服(fu)电(dian)(dian)(dian)(dian)动(dong)(dong)机,应(ying)每年(nian)进行(xing)一(yi)(yi)次(ci)维护(hu)(hu)保养(yang)。维护(hu)(hu)保养(yang)的(de)(de)(de)(de)主要内容有(you):用干燥(zao)的(de)(de)(de)(de)压(ya)缩(suo)空(kong)气吹(chui)除(chu)电(dian)(dian)(dian)(dian)刷(shua)(shua)的(de)(de)(de)(de)粉(fen)(fen)尘,检查(cha)(cha)电(dian)(dian)(dian)(dian)刷(shua)(shua)的(de)(de)(de)(de)磨损(sun)情(qing)况(kuang)(kuang),如(ru)(ru)需要换,需选(xuan)用规格(ge)相同(tong)的(de)(de)(de)(de)电(dian)(dian)(dian)(dian)刷(shua)(shua),更(geng)换后要空(kong)载运(yun)行(xing)一(yi)(yi)定时(shi)间(jian)使其与换向器表面吻合;检查(cha)(cha)清(qing)扫电(dian)(dian)(dian)(dian)枢整流子以(yi)防止短路;如(ru)(ru)装(zhuang)有(you)测速电(dian)(dian)(dian)(dian)机和(he)脉冲编码器时(shi),也要进行(xing)检查(cha)(cha)和(he)清(qing)扫。数(shu)控(kong)车床(chuang)中的(de)(de)(de)(de)直流伺(si)服(fu)电(dian)(dian)(dian)(dian)机应(ying)每年(nian)至少(shao)检查(cha)(cha)一(yi)(yi)次(ci),一(yi)(yi)般应(ying)在(zai)数(shu)控(kong)系统断(duan)电(dian)(dian)(dian)(dian)的(de)(de)(de)(de)情(qing)况(kuang)(kuang)下(xia),并且(qie)电(dian)(dian)(dian)(dian)动(dong)(dong)机已完全冷(leng)却(que)的(de)(de)(de)(de)情(qing)况(kuang)(kuang)下(xia)进行(xing)检查(cha)(cha);如(ru)(ru)FANUC直流伺(si)服(fu)电(dian)(dian)(dian)(dian)动(dong)(dong)机的(de)(de)(de)(de)电(dian)(dian)(dian)(dian)刷(shua)(shua)由10mm磨损(sun)到小于(yu)5mm时(shi),必须更(geng)换同(tong)一(yi)(yi)型号的(de)(de)(de)(de)电(dian)(dian)(dian)(dian)刷(shua)(shua);仔细检查(cha)(cha)电(dian)(dian)(dian)(dian)刷(shua)(shua)的(de)(de)(de)(de)弧形接触面是否有(you)深沟(gou)和(he)裂(lie)痕(hen),以(yi)及(ji)电(dian)(dian)(dian)(dian)刷(shua)(shua)弹簧上(shang)是否有(you)无打火痕(hen)迹。如(ru)(ru)有(you)上(shang)述现象,则要考虑电(dian)(dian)(dian)(dian)动(dong)(dong)机的(de)(de)(de)(de)工(gong)作条(tiao)件(jian)是否过分恶(e)劣或电(dian)(dian)(dian)(dian)动(dong)(dong)机本身是否有(you)问题。用不(bu)含金属粉(fen)(fen)末(mo)(mo)及(ji)水(shui)分的(de)(de)(de)(de)压(ya)缩(suo)空(kong)气导入装(zhuang)电(dian)(dian)(dian)(dian)刷(shua)(shua)的(de)(de)(de)(de)刷(shua)(shua)孔(kong),吹(chui)净(jing)粘在(zai)刷(shua)(shua)孔(kong)壁上(shang)的(de)(de)(de)(de)电(dian)(dian)(dian)(dian)刷(shua)(shua)粉(fen)(fen)末(mo)(mo)。如(ru)(ru)果更(geng)换了新电(dian)(dian)(dian)(dian)刷(shua)(shua),应(ying)使电(dian)(dian)(dian)(dian)动(dong)(dong)机空(kong)运(yun)行(xing)跑合一(yi)(yi)段时(shi)间(jian),以(yi)使电(dian)(dian)(dian)(dian)刷(shua)(shua)表面和(he)换向器表面相吻合。

6、机床测量反馈元件的维护与保养

每周应检查一次检测(ce)元(yuan)件(如编码器(qi)),检测(ce)元(yuan)件联接是否松动,是否被油液或灰尘污染。