面向曲线加工的精确加减速控制

焦青松; 李迪; 王世勇

doi:10.13433/j.cnki.1003-8728.2015.0516

面向曲线加工的精确加减速控制

doi: 10.13433/j.cnki.1003-8728.2015.0516

1.
华南理工大学经济与贸易学院, 广州 510006;
2.
华南理工大学机械与汽车工程学院, 广州 510640

基金项目:

863计划项目（2012AA040909）与中央高校基本科研业务费项目（x2jmD2118150）资助

详细信息

作者简介:
焦青松（1972-），讲师，博士研究生，研究方向为高性能嵌入式控制系统和制造业信息化，ecqsjiao@scut.edu.cn

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- 文章访问数: 170
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- 被引次数: 0
出版历程
- 收稿日期: 2013-09-10
- 刊出日期: 2015-05-05

Accurate Acceleration/Deceleration Control for Curve Machining

1.
School of Economics and Commerce, South China University of Technology, Guangzhou 510006, China;
2.
School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China

摘要

摘要: 数控系统加工曲线轨迹的实质是以连续的直线段逼近曲线轨迹，所以加工轨迹的实际长度不等于曲线轨迹的理论长度。针对此问题，提出了一种利用二分法的基本思想求解加工轨迹的实际长度，从而实现精确加减速控制的算法。仿真结果表明：采用所提算法能够实现插补终点与曲线轨迹终点重合，并且能够实现理论加减速曲线与实际加减速曲线一致，从而有利于保证加工质量和机床的动态性能。
- 加减速控制 /
- 曲线加工 /
- 二分法
Abstract: In curve machining, the curve trajectory was approached by the continuous small straight line segments. Then, the theoretic trajectory length was not exactly equal to the actual machining length. Therefore, a new algorithm was proposed to solve the problem, which realized the accurate acceleration-deceleration control for the curve machining by adjusting the actual machining length via dichotomy. The simulation result of a practical example demonstrates that the present algorithm can make the interpolation terminal point match up to the curve trajectory terminal point and do the theoretic acceleration/deceleration velocity profile consist with the actual acceleration/deceleration velocity profile. The present algorithm can improve the machining precision of curve trajectory and ameliorate the dynamic performance.
- acceleration/deceleration control /
- algorithms /
- computer simulation

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参考文献(13)

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