...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The International Journal of Advanced Manufacturing Technology >A look-ahead and adaptive speed control algorithm for high-speed CNC equipment
【24h】

A look-ahead and adaptive speed control algorithm for high-speed CNC equipment

机译：高速数控设备的超前自适应速度控制算法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A novel look-ahead and adaptive speed control algorithm is proposed. The algorithm improves the efficiency of rapid linking of feedrate for high-speed machining and avoids impact caused by acceleration gust. Firstly, discrete S-curve speed control algorithm is presented according to the principle of S-curve acceleration and deceleration. Secondly, constraints of linked feedrates are derived from several limits, including the axis feedrate and feed acceleration limits, the circular arc radius error limit, and the machining segment length limit. With these constraints, the optimal linked feedrate is sought to achieve the maximum feedrate by using look-ahead method. Since the actual ending velocity of machining segment equals to the corresponding optimal linked feedrate, speed control of each segment can be executed. Finally, the proposed algorithm is implemented in a pipe cutting CNC system, and experimental results show that the proposed algorithm achieves a high-speed and smooth linking feedrate and improvements in productivity and stationarity.
机译：提出了一种新颖的超前自适应速度控制算法。该算法提高了高速加工进给率快速链接的效率，并避免了由加速阵风引起的冲击。首先，根据S曲线加减速原理，提出了离散的S曲线速度控制算法。其次，链接进给率的约束是从几个极限中得出的，包括轴进给率和进给加速度极限，圆弧半径误差极限以及加工段长度极限。在这些限制下，通过使用预读方法寻求最佳的链接进给率以实现最大进给率。由于加工段的实际结束速度等于相应的最佳链接进给速度，因此可以执行每个段的速度控制。最后，该算法在管道切割数控系统中实现，实验结果表明，该算法实现了高速，平稳的联动进给速度，提高了生产率和平稳性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号