摘要
为满足客户需求,开展了大型圆柱滚子对数凸度成形磨削加工试验,阐述了加工原理,确定了磨削加工工艺。根据圆柱滚子凸度轮廓的已知数据,结合Solidworks样条曲线拟合,得到砂轮工作面内凹曲线上相应点的修整量占比。采用直线插补原理控制金刚石笔修整轨迹,将砂轮工作面修整成内凹的对数曲线廓形,加工时将砂轮工作面形状复映到滚子素线上。试验结果表明:滚子检测技术指标均能满足产品要求,且轴向跳动和圆度误差远小于产品要求值,滚子凸度最大值为89.8μm,滚子两侧凸度偏差不超过1.5μm。
In order to meet the needs of customers,the test for crown forming grinding of large size cylindrical rollers is carried out.The principle of processing is explained,and the grinding process is determined.According to known data of crown profile of cylindrical rollers,combining with spline curve fitting by Solidworks,the dressing proportion of corresponding points on concave curve of grinding wheel working face is obtained.The linear interpolation principle is used to control the trajectory of diamond pen dressing,and then the grinding wheel working face is dressed into concave logarithmic curve profile.During grinding,the shape of grinding wheel working face is reflected onto generatrix of rollers.The test results show that the technical indexes of rollers meet the requirements of products,and the axial run-out and roundness errors far smaller than the requiring value of products.The maximum value of roller crown is 89.8μm,and the crown of both sides of rollers is no more than 1.5μm.
作者
周芬芬
张迅雷
袁巨龙
梁贵林
何城成
ZHOU Fenfen;ZHANG Xunlei;YUAN Julong;LIANG Guilin;HE Chengcheng(Zhejiang XCC Group Co.,Ltd.,Shaoxing 312500,China;School of Intelligent Manufacturing,Taizhou University,Taizhou 318000,China;Ultra-Precision Machining Center,Zhejiang University of Technology,Hangzhou 310014,China)
出处
《轴承》
北大核心
2021年第2期24-28,共5页
Bearing
基金
国家自然科学基金项目(51705330)
浙江省自然科学基金项目(LQ19E050005)
浙江省人力资源和社会保障厅博士后科研项目择优资助(ZJ2020109)
台州市科技计划项目(1902gy10)。
关键词
滚动轴承
大型轴承
圆柱滚子
凸度
砂轮修整
磨削
rolling bearing
large size bearing
cylindrical roller
crown
grinding wheel dressing
grinding
