精密球偏心研磨加工参数仿真优化  

SIMULATION OPTIMIZATION OF ECCENTRIC RUBBING PROCESS PARAMETER ON PRECISION BALL

作　　者：陆勇星[1,2] 朱凌宏[2] 

机构地区：[1]金华职业技术学院机电工程学院,金华321017 [2]浙江工业大学精密工程研究所,杭州310014

出　　处：《机械强度》2013年第1期33-40,共8页Journal of Mechanical Strength

基　　金：国家自然科学基金(50375147);浙江省自然科学基金(LQ12E05011)资助~~

摘　　要：利用虚拟仿真优化技术,改善球体表面研磨轨迹的均匀性,提高精密球研磨加工的质量和精密度。通过建立球体运动的几何关系,利用虚拟样机技术,基于Adams软件建立偏心研磨机构的三维实体模型,经单因素仿真实验,逐一揭示研磨机构中研磨盘转速组合、沟槽角度组合以及偏心距对球体公转角速度、自转角速度、自转角、方位角等运动状态参数的影响程度。根据仿真结果,选择一组较佳的偏心研磨机构加工参数组合,对精密球研磨轨迹进行虚拟仿真测试。测试结果表明,优化后球体表面研磨轨迹的全包络线较好地体现精密球等概率切削的加工特性。Simulant optimization technique is used for improving uniformity of rubbing track, quality and precision of ball are advanced. Geometry relations of ball movement were established, dummy technique was utilized, three-directional entity model of eccentric rubbing organ was set up basing on Adams. Single factor simulation test experiment show the effects of rubbing speed combination, groove angle combination and eccentricity distance on state parameters of ball, the parameters include revolution velocity, rotation velocity, rotation angle and azimuth angle. According to the simulation result, a set of optimized parameters were used for dummy simulation test experiment. The test results indicate optimized full track curves can incarnate equal probability process character of ball better.

关 键 词：仿真优化 研磨轨迹 偏心研磨机构 全包络线 等概率切削 

分 类 号：TB115.1[理学—数学] TH133.33[理学—应用数学]