盘形圆弧砂轮曲面磨削几何模型
发布时间:2019-03-19 14:49
【摘要】:砂轮外形、加工轨迹、运动轴组合方式、工件摆放方式等的差异都会引起曲面磨削加工模型的变化,加工几何模型是实施曲面磨削首要解决的问题。建立盘形圆弧砂轮的几何模型,通过磨削点法向量匹配,建立工件点和砂轮点的一一映射关系,经过坐标变换可以得到相应的刀具运动轨迹,用于磨削加工。形成统一的盘形砂轮曲面磨削几何模型,并给出刀具运动轨迹的计算流程。该磨削模型适用范围广,有效解决了多种曲面磨削过程的刀具轨迹生成问题,实现了高精度的曲面磨削加工。
[Abstract]:The difference of grinding wheel shape, machining track, combination mode of moving shaft and arrangement of workpiece will cause the change of surface grinding machining model. The machining geometry model is the first problem to be solved in surface grinding. The geometric model of disk-shaped circular arc grinding wheel is established, and the one-to-one mapping relation between work point and wheel point is established by matching the normal vector of grinding point. The corresponding tool motion path can be obtained by coordinate transformation for grinding. A uniform geometric model of disk grinding wheel surface grinding is formed, and the calculation flow of tool motion path is given. The grinding model can be used in a wide range and can effectively solve the problem of tool path generation in various surface grinding processes and achieve high-precision surface grinding.
【作者单位】: 国防科技大学机电工程与自动化学院;超精密加工技术湖南省重点实验室;中国科学院上海技术物理研究所;
【基金】:国家重点基础研究发展计划资助项目(2011CB013204)
【分类号】:TG580.6
[Abstract]:The difference of grinding wheel shape, machining track, combination mode of moving shaft and arrangement of workpiece will cause the change of surface grinding machining model. The machining geometry model is the first problem to be solved in surface grinding. The geometric model of disk-shaped circular arc grinding wheel is established, and the one-to-one mapping relation between work point and wheel point is established by matching the normal vector of grinding point. The corresponding tool motion path can be obtained by coordinate transformation for grinding. A uniform geometric model of disk grinding wheel surface grinding is formed, and the calculation flow of tool motion path is given. The grinding model can be used in a wide range and can effectively solve the problem of tool path generation in various surface grinding processes and achieve high-precision surface grinding.
【作者单位】: 国防科技大学机电工程与自动化学院;超精密加工技术湖南省重点实验室;中国科学院上海技术物理研究所;
【基金】:国家重点基础研究发展计划资助项目(2011CB013204)
【分类号】:TG580.6
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