缅甸银河国际

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台御立式加工中心加工精度超差原因及方法技巧

作者:台御科技 发布时间:2016-02-28
内容摘要:台湾新代数控系统在国内受到不少客户的青睐,在业内我们普遍都认为 数控系统性能 好,国产数控系统适合低端机,而台湾数控系统是比较具有性价比的。
  

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立式加工中心加工精度超差主要表现为:内孔加工表面粗糙度值高、铰出的内孔不圆、铰出的孔位置精度超差、孔的内表面有明显的棱面、铰孔后孔的中心线不直、孔径增大、孔径缩小等。
 
一、铰出的孔位置精度超差

产生原因:可能是由于立式加工中心的导向套磨损、导向套底端距工件太远、导向套长度短、精度差以及主轴轴承松动等原因造成。
解决措施:立式加工中心铰孔时如出现孔的位置精度超差可按上述易出问题作以下维修定期   换导向套、加长导向套,提高导向套与铰刀间隙的配合精度、及时维修机床、调整主轴轴承间隙。
 
二、内孔表面粗糙度值高

缅甸银河国际CHANSHENGYUANYIN:LISHIJIAGONGZHONGXINJIAGONGNEIKONGBIAOMIANCUCAODUGAO,CHANSHENGDEYUANYINJIAODUO,KENENGSHIYOUYUQIEXUESUDUGUOGAO、QIEXUEYEXUANZEBUHESHI、JIAODAOZHUPIANJIAOGUODA、JIAOKONGYULIANGTAIDA、JIAOKONGYULIANGBUJUNYUNHUOTAIXIAO、RENKOUBUFENGLI、JIAOQIEXUERENDAIGUOKUAN、JIAOKONGSHIPAIXIEBUCHANG、JIAODAOGUODUMOSUN、HAIYOUKENENGSHIXUANZEDEXIANXUEDAOJUHELINGJIANCAILIAOBUPIPEIDENGYUANYIN。

解决措施:由于加工粗糙度高产生的原因很多,所以解决起来较为复杂,可以从以下几个方面入手:降低切削速度、根据加工材料选择切削液、适当减小铰孔余量、提高铰孔前底孔位置精度与质量或增加铰孔余量、加大容屑槽空间或采用带刃倾角的铰刀,使排屑顺利、定期   换铰刀、合理选择刀具,如加工钢件时要选择适合钢件加工的刀具等措施。
 
三、加工孔径增大

CHANSHENGYUANYIN:LISHIJIAGONGZHONGXINJIAGONGSHIKONGJINGZHUJIANJIADACHANSHENGDEYUANYINKENENGYOU:JIAODAOWAIJINGCHICUNSHEJIZHIPIANDAHUOJIAODAORENKOUYOUMAOCI、QIEXUESUDUGUOGAO、JINJILIANGBUDANGHUOJIAGONGYULIANGGUODA、JIAODAOZHUPIANJIAOGUODA、JIAODAOWANQU、JIAODAORENKOUSHANGZHANFUZHEJIXIELIU、RENMOSHIJIAODAORENKOUBAICHACHAOCHA、QIEXUEYEXUANZEBUHESHI,HAIYOUKENENGSHISHUKONGJICHUANGBENSHENDEWENTI,ZHUZHOUWANQUHUOZHUZHOUZHOUCHENGGUOSONGHUOSUNHUAI、YEYOUKENENGCHUXIANSHANGSHUWENTI。

解决措施:可以根据实际检查的情况作如下对策:根据具体情况适当减小铰刀外径、降低切削速度、适当调整进给量或减少加工余量、适当减小主偏角、校直或报废弯曲的不能用的铰刀、选择冷却性能较好的切削液、调整或   换主轴轴承,或者   换整条主轴。
 
四、铰出的内孔不圆

产生原因:出现加工内孔不圆,圆度不够的情况主要是由于下面几个因素:铰刀过长,刚性不足,铰削时产生振动、铰刀主偏角过小、铰孔余量偏小、内孔表面有缺口、交叉孔、特别是孔表面有砂眼、气孔、还有可能是机床主轴轴承松动等。

解决措施:可以从如下几个方面入手:铰刀的安装应采用刚性联接,选用合格铰刀,控制预加工工序的孔位置公差、采用不等齿距铰刀、选用合格毛坯、及时对机床主轴间隙进行调整等。
 
缅甸银河国际 五、铰孔后孔的中心线不直

缅甸银河国际CHANSHENGYUANYIN:LISHIJIAGONGZHONGXINJIAGONGKONGSHICHUXIAN,ZHONGXINXIANBUZHIKENENGDEYUANYINKENENGYOU:ZUANKONGJIAGONGSHIKONGXIE,TEBIESHIKONGJINGJIAOXIAOSHI, YOUYUJIAODAOGANGXINGJIAOCHA,BUNENGJIUZHENGYUANYOUDEWANQUDU、JIAODAOZHUPIANJIAOGUODA、DAOXIANGBULIANG,SHIJIAODAOZAIJIAOXUEZHONGYIPIANLIFANGXIANG、QIEXUEBUFENDAOZHUIGUODA、JIAODAODUANXUZAIKONGZHONGBUJIANXICHUWEIYIDENGYUANYIN。

解决措施:增加扩孔或镗孔工序校正孔、减小主偏角、调整合适的铰刀、调换有导向部分或加长切削部分的铰刀、注意正确操作。
 

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