磨粒有序化排布油石超精研规则网纹表面的运动仿真  

Kinetics Simulation of the Abrasives Grain Ordered Arrangement Oilstone in Superfinishing Uniform Texture Surface Process

作　　者：邸寒旭 王海[1] 吕玉山[1] 杨震宇 宋征 DI Hanxu;WANG Hai;LYU Yushan;YANG Zhenyu;SONG Zheng(School of Mechanical Engineering,Shenyang Ligong University,Shenyang Liaoning 110159,China;Center Hospital of Liaoning Electric Power,Shenyang Liaoning 110015,China)

机构地区：[1]沈阳理工大学机械工程学院,辽宁沈阳110159 [2]辽宁电力中心医院,辽宁沈阳110015

出　　处：《机床与液压》2021年第2期10-14,共5页Machine Tool & Hydraulics

基　　金：国家自然科学基金面上项目(51875368)。

摘　　要：为得到外圆零件表面均匀一致的网纹结构,降低零件运动过程的摩擦阻力,设计叶序、阵列、错位3种磨粒排布方式的油石,并通过油石正弦振荡方法进行外圆表面超精研磨。通过MATLAB软件进行运动学仿真,获得3种磨粒有序化排布方式的运动轨迹和超精研圆柱工件结构化表面的变化规律。结果表明:使用磨粒有序化排布油石正弦振荡可以加工出排布一致的结构化表面。在叶序排布下,振幅与磨粒排布叶序系数的比值为1.4821时,工件表面平台面积近似相等,网纹均匀一致;此时增大振幅和叶序系数,网纹密度会减小,单个平台面积增大。磨粒叶序排布比阵列排布和错位排布研磨得更充分,平台面积也更均匀。In order to obtain the uniform and consistent texture structure on the surface of the outer workpieces and reduce the frictional resistance during the movement of the workpieces,the oilstone was designed by three kinds of abrasive grain arrangement,included phyllotactic,array and staggered pattern.The oilstone sinusoidal oscillation method was used to outer cylindrical workpiece superfinishing.Kinematics simulation was carried out by using MATLAB software,the kinetics trajectories of three kinds of grain or⁃dered arrangement and the appearance rules of superfinishing cylindrical workpieces structured surface were obtained.The results show that the structural surface with uniform arrangement can be produced by using the sinusoidal oscillation of the oilstone with abrasive or⁃dered arrangement.In the abrasive phyllotactic pattern,when the ratio of the amplitude to the phyllotactic coefficient of the grain ar⁃rangement is 1.4821,the plateaus area of the workpiece surface is approximately equal,and the texture is uniform;under these con⁃ditions,increasing the amplitude and the phyllotactic coefficient,the texture density is reduced,and a single platform area is in⁃creased.The abrasive grain phyllotactic pattern is more fully ground than array arrangement and staggered arrangement,and the plat⁃form area is more even.

关 键 词：超精研 结构化表面 磨粒排布方式 油石 仿真 

分 类 号：TG745[金属学及工艺—刀具与模具]