五轴磨床加工精密球面的磨削形态及运动分析 上海交通大学机械与动力工程学院机械制造及其自动化专业论文.pdfVIP

2010 年度优秀科技论文评选活动入围作品 五轴磨床加工精密球面的磨削形态 及运动分析 上海交通大学机械与动力工程学院机械制造及其自动化专业 侯海云、蒋天一、胡德金 摘 要 为了了解五轴磨床中杯形砂轮用于球面工件磨削的特点，综合杯形砂轮平面磨削实 验和几何建模分析方法，给出了加工球面时杯形砂轮一点的磨削轨迹方程，分析了磨削形态 与加工参数之间的关系，导出螺距公式，提出条纹主带概念，最后进行了运动学分析，给出 了杯形砂轮的理论磨削力变化曲线。分析表明，杯形砂轮加工球面的磨削形态近似对称，但 磨削条件是不对称的。 关键词 五轴球面磨床；杯形砂轮；磨削形态；运动分析 中图分类号：TG580.13 Space morphology studies and kinematic analysis applied for 5-axis spherical precision grinding machine HOU Hai-yun, JIANG Tian-yi, HU De-jin (School Of Mechanical Engineering，Shanghai Jiaotong University，Shanghai 200030，China) Abstract Grinding characteristics can be obtained in flat grinding by cup wheel.But it is difficult to know about the characteristics of spherical grinding used by cup wheel.In order to find out those characteristics, geometric modeling and space morphology analysis were done based on 5-axis spherical precision grinding machine.Screw pitch is related with mainshaft rotation and swing velocity.The number of main stripe bands is decided by rotation of mainshaft and grinding wheel.And the characteristics of the grinding forces were analyzed too.The results show that cup- wheel grinding for spherical workpieces is approximately symmetrical in space morphology but not in grinding condition. Keywords 5-axis spherical grinding machine;cup wheel; space morphology; kinematic analysis w w w . i m e o r g . o r g T e l : 8 0 0 - 8 2 0 - 0 9 4 9 1 2010 年度优秀