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    app平台赚钱项目>技术文章>数控车床怎么去消除振荡

    技术文章 Article

    数控车床怎么去消除振荡

    app平台赚钱项目DIANJICISHU:985 FABUSHIJIAN:2018-09-12

        数控系统的振荡现象已成为数控全闭环系统的共同性问题。系统振荡时会造成机床产生爬行与振动故障,尤其在卧式带立柱的轴和旋转数控工作台轴其系统出现振荡的频率较高。该问题已成为影响数控车床正常使用的重要因素之一。


        数控车床产生振荡的原因:


        SHUKONGCHECHUANGDEZHENDANGGUZHANGTONGCHANGFASHENGZAIJIXIEBUFENHEJINJISIFUXITONG。CHANSHENGZHENDANGDEYUANYINYOUHENDUO,CHENLEJIXIEFANGMIANCUNZAIBUKEXIAOCHUDECHUANDONGJIANXI、DANXINGBIANXING、MOCAZULIDENGZHUDUOYINSUWAI,SIFUXITONGDEYOUGUANCANSHUDEYINGXIANGYESHIZHONGYAODEYIFANGMIAN。SIFUXITONGYOUJIAOLIUHEZHILIUZHIFEN。DABUFENSHUKONGJICHUANGCAIYONGDESHIQUANBIHUANFANGSHI,YINQISIFUXITONGZHENDONGDEYUANYINDAZHIYOUSIZHONGQINGKUANG:


        WEIZHIHUANBULIANGYOUYINQISHUCHUDIANYABUWEN;


        SUDUHUANBULIANGYINQIDEZHENDONG;


        SIFUXITONGKEDIAODINGWEIQITAIDAYINQIDIANYASHUCHUSHIZHEN;


        CHUANDONGJIXIEZHUANGRUSIGANGJIANXITAIDA。ZHEIXIEKONGZHIHUANDESHUCHUCANSHUSHIZHENHUOJIXIECHUANDONGZHUANGZHIJIANXITAIDADOUSHIYINQIZHENDONGDEZHUYAOYINSU。TAMENDOUKEYITONGGUOSIFUKONGZHIXITONGJINXINGCANSHUYOUHUA。


        SHUKONGCHECHUANGXIAOCHUZHENDANGDEJIBENCUOSHI:


        1.BIHUANSIFUXITONGZAOCHENGDEZHENDANG


        YOUXIESHUKONGSIFUXITONGCAIYONGDESHIBANBIHUANZHUANGZHI,ERQUANBIHUANSIFUXITONGBIXUSHIZAIQIJUBUBANBIHUANXITONGBUFASHENGZHENDANGDEQIANTIXIAJINXINGCANSHUDIAOZHENG,SUOYILIANGZHEDATONGXIAOYI。


        2.JIANGDIWEIZHIHUANZENGYI


        ZAISIFUXITONGZHONGYOUCANKAODEBIAOZHUNZHI,CHUXIANZHENDANGKESHIDANGJIANGDIZENGYI,DANBUNENGJIANGTAIDUO,YINWEIYAOBAOZHENGXITONGDEWENTAIWUCHA。


    app平台赚钱项目    3.JIANGDIFUZAIGUANLIANGBI


    app平台赚钱项目    FUZAIGUANLIANGBIYIBANSHEZHIZAIFASHENGZHENDONGSHISUOSHICANSHUDE70%ZUOYOU,RUBUNENGXIAOCHUGUZHANG,BUYIJIXUJIANGDIGAICANSHUZHI。


        4.JIARUBILIWEIJIFENQI(PID)


    app平台赚钱项目    BILIWEIJIFENQISHIYIGEDUOGONGNENGKONGZHIQI,TABUJINNENGYOUXIAODIDUIDIANLIUDIANYAXINHAOJINXINGBILIZENGYI,TONGSHIKEDIAOJIESHUCHUXINHAOZHIHOUCHENGCHAOQIANDEWENTI,ZHENDANGGUZHANGYOUSHIYINSHUCHUDIANLIUDIANYAFASHENGZHIHOUCHENGCHAOQIANQINGKUANGERCHANSHENG,ZHEISHIKETONGGUOPIDLAIDIAOJIESHUCHUDIANLIUDIANYAXIANGWEI。


        5.CAIYONGGAOPINYIZHIGONGNENG


        YISHANGTAOLUNDESHIYOUGUANDIPINZHENDANGSHICANSHUYOUHUAFANGFA,ERYOUSHISHUKONGXITONGHUIYINJIXIESHANGMOUXIEZHENDANGYUANYINCHANSHENGFANKUIXINHAOZHONGHANYOUGAOPINXIEBO,ZHEISHISHUCHUZHUANJULIBUHENGDING,CONGERCHANSHENGZHENDONG。DUIYUZHEIZHONGGAOPINZHENDANGQINGKUANG,KEZAISUDUHUANSHANGJIARUYIJIEDITONGLVBOHUANJIE,JIWEIZHUANJULVBOQI。


        速度指令与速度反馈信号经速度控制器转化为转矩信号,转矩信号通过一阶滤波环节将高频成分截止,从而得到有效的转矩控制信号。通过调节参数可将机械产生的100Hz以上的频率截止,从而达到消除高频振荡的效果。

     

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