金誉彩票

如何提高齿轮成形磨削的效率及齿形磨削精度,并解决渐开线齿轮成齿过程中齿根部分易烧伤的难题

如何提高齿轮成形磨削的效率及齿形磨削精度,并解决渐开线齿轮成齿过程中齿根部分易烧伤的难题

作者:除尘器编辑    来源:本站原创    发布时间:2019-12-30T07:37:56    浏览量:

金誉彩票   SUIZHEJIXIEZHIZAOYEDEFAZHAN,DUICHILUNCHUANDONGCHANPINZAIZHONGZAI、JINGYIN、ZHANGSHOUMINGDENGFANGMIANDEYAOQIUYUELAIYUEGAO,TONGSHIDUICHIXINGJIAGONGJINGDUJIJIAGONGXIAOLVYEYOULEQIANSUOWEIYOUDEGAOYAOQIU,YUANYOUDERUANCHIMIAN、ZHONGYINGCHIMIANCHILUNZHUJIANBEIYINGCHIMIANCHILUNSUOQUDAI。RUJIN,MOCHIYICHENGWEIJINGMICHILUNJIAGONGZHONGGUANGFANCAIYONGDEZHULIUGONGYI。ANMOXUEYUANLIFENLEI,MOCHIDEFANGFAYOUZHANCHENGFAHECHENGXINGFA。CHENGXINGMOCHIYOUYUJUYOUSHIYINGFANWEIGUANG,JIAGONGJINGDUGAO,CHIXINGCHIXIANGXIUXINGFANGBIANDENGYOUDIAN,JINNIANLAIBEIDALIANGCAIYONG。TEBIEZAIDAZHONGXINGMOSHUCHILUN、ZHANGZHOUCHILUN、SHAOCHISHUCHILUNDEMOXUEJIAGONGZHONGCHENGXINGMOCHIYOUSHIGENGWEIMINGXIAN。

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  其二,在磨削齿轮过程中砂轮做一定量径向进给的时候,齿轮齿面上各点得到的法向进给量也会不同(如图二b所示),从齿顶到齿根随着压力角的减小而减小。由于在齿轮粗加工预留磨削余量时通常采用由齿顶至齿根在齿厚方向等余量的方式,而在齿形磨削时是采用径向进给方式,在给定一定进给量时,齿形顶部的进给量远远大于齿形根部的进给量,要想磨掉齿形根部的毛坯余量,相对齿形顶部相同的毛坯余量则需要很大的径向进给量,由此造成在磨齿时会出现砂轮尖部过早地与工件齿形的根部接触,并且伴随着整个磨削过程砂轮尖部都一直在工作,而齿形的顶部则在初始进给时留有很大一段空行程,相当于无形之中将加工余量扩大了许多倍,制约了磨齿加工的效率。除尘器金誉彩票分析同时由于砂轮尖部参与磨削加工时间过长,将会导致新修整好的砂轮总是尖部开始磨钝变黑。砂轮钝化后,原来的磨削就变成挤压、摩擦,从而产生大量的热量,造成齿根部烧伤。在整个磨削过程中这种问题不仅一直存在,且有恶性循环的趋势,也就是说:砂轮越是参加磨削少的部位,却越能被良好地修整;砂轮越是修整不良的地方却一直在磨削工件。

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