| 赵国勇,赵福令,徐志祥.一种基于NURBS插补器的高精度交叉耦合控制方法[J].,2008,(2):210-214 |
| 一种基于NURBS插补器的高精度交叉耦合控制方法 |
| High-precision cross-coupled control approach based on NURBS curve interpolator |
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| DOI：10.7511/dllgxb200802010 |
| 中文关键词: 高精度加工 NURBS插补器 交叉耦合控制 DSP |
| 英文关键词: high-precision machining NURBS curve interpolator cross-coupled control DSP |
| 基金项目:国家自然科学基金资助项目50275022. |
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| 中文摘要: |
| 数控机床各联动轴动态性能不一致会给零件加工带来较大的轮廓误差．在分析传统机床轮廓控制方案不足的基础上，针对高精度数控加工需要，提出了一种基于NURBS插补器的简单实用的高精度交叉耦合控制方法，克服了传统交叉耦合控制方法轮廓误差模型计算的非线性、时变性、不精确性．在建立的基于DSP的数控实验台上验证了该方法的有效性．该方法对于零件的高精度数控加工具有重要意义． |
| 英文摘要: |
| The dynamic performance variance of each machine axis may lead to bigger contour error when machining. After analyzing the weakness of the conventional machine contour control scheme, a simple and practical high-precision cross-coupled control(CCC) approach based on NURBS curve interpolator is put forward aiming at the demand of high accuracy CNC machining, which overcomes the non-linearity, time-varying and inexactness of traditional CCC contour error model. The validity of this approach is tested on a CNC experiment table based on DSP. The conclusion is much significant to high accuracy machining. |
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