西安交通大学机械制造系统工程国家重点实验室,西安,710049
网络首发:2012-03-10,
纸质出版:2012
移动端阅览
李学伟, 赵万华, 卢秉恒. 轨迹误差建模的多轴联动机床轮廓误差补偿技术[J]. 西安交通大学学报, 2012,46(3):47-52.
Contour Error Compensation Strategy for Multi-Axis Machining by Trajectory Error Modeling[J]. 2012, 46(3): 47-52.
为了提高数控机床多轴联动加工精度
减小由传动机构和运动部件质量、刚度、阻尼及摩擦等因素造成的轮廓误差
针对交叉耦合控制参数难以选择及容易使系统不稳定的问题
提出了一种针对多轴联动机床进行运动轨迹误差建模和补偿的方法.该方法通过测量机床的典型实际联动轨迹
来建立轮廓误差模型
实现了加工过程轮廓误差的实时估算和补偿.通过对x、y轴工作台的联动轮廓误差建模和补偿实验
证明此方法可以显著减小圆弧及曲率连续变化曲线轨迹的加工误差
从而提高了在高速条件下的数控机床多轴联动的加工精度.
To improve the machining precision of multi-axis machine tools
diminish its contour error caused by various factors of the transmission mechanism
such as mass
rigidity
damp and friction
and aiming at the difficulty of parameter identification in the cross-coupled control method and the induced system instability
a novel error modeling and compensation strategy for multi-axis machine tools is proposed. The contour error model is established by measuring several contour errors of typical trajectory
and the contour error can be calculated and compensated by the error model during machining process. The new compensation strategy is implemented on a x、y table
which shows that the new approach enables to significantly reduce the contour error of circle and trajectory with continual curvature and improve the multi-axis machining precision
especially for high speed machining.
RAMESH R, MANNAN M A, POO A N. Tracking and contour error control in CNC servo systems [J]. International Journal of Machine Tools & Manufacture, 2005,45(3): 301-326.
TOMIZUKA M. Zero phase error tracking algorithm for digital-control [J]. Transactions of the ASME: Journal of Dynamic Systems Measurement and Control, 1987, 109(1): 65-68.
FUNAHASHI Y, YAMADA M. Zero phase error tracking controllers with optimal gain characteristics[J]. Transactions of the ASME: Journal of Dynamic Systems Measurement and Control, 1993, 115(3): 311-318.
YAMADA M, FUNAHASHI Y, FUJIWARA S. Zero phase error tracking system with arbitrarily specified gain characteristics [J]. Transactions of the ASME: Journal of Dynamic Systems Measurement and Control, 1997,119(2): 260-264.
马骋,冯之敬,赵广木.零幅相误差跟踪控制器 [J].清华大学学报: 自然科学版, 2000,40(5):44-46.
MA Cheng, FENG Zhijing, ZHAO Guangmu. Zero amplitude and phase error tracking controller[J]. Journal of Tsinghua University: Science and Technology, 2000,40(5):44-46.
富强,吴云洁.基于QFT和ZPETC的高精度鲁棒跟踪控制器设计 [J].自动化技术与应用,2004,23(8):1-3.
FU Qiang, WU Yunjie. QFT and ZPETC-based robust control design for a high accuracy tracking system [J]. Techniques of Automation and Applications, 2004,23(8):1-3.
KOREN Y. Cross-coupled biaxial computer control for manufacturing systems [J]. Transactions of the ASME: Journal of Dynamic Systems Measurement and Control, 1980, 102(4): 265-272.
YEH Z M, TARNG Y S, LIN Y S. Cross-coupled fuzzy logic control for multiaxis machine tools[J]. Mechatronics, 1997, 7(8): 663-681.
TARNG Y S, CHUANG H Y, HSU W T. Intelligent cross-coupled fuzzy feedrate controller design for CNC machine tools based on genetic algorithms [J]. International Journal of Machine Tools Manufacture, 1999, 39(10): 1673-1692.
李圣怡,张云洲,张明亮,等. 超精密机床的变增益交叉耦合控制研究 [J].基础自动化,2000,7(2):25-28.
LI Shengyi, ZHANG Yunzhou, ZHANG Mingliang, et al. Cross-couple-method-based research of ultra CNC servo control [J]. Basic Automation, 2000,7(2):25-28.
CHIN J H, CHENG Y M, LIN J H. Improving contour accuracy by fuzzy-logic enhanced cross-coupled precompensation method [J]. Robotics and Computer-Integrated Manufacturing, 2004, 20(1): 65-76.
BARTON K L, ALLEYNE A G. A cross-coupled iterative learning control design for precision motion control [J]. IEEE Transactions on Control Systems Technology, 2008, 16(6): 1218-1231.
ZHONG Q. A linear cross-coupled control system for high-speed machining [J]. International Journal of Advanced Manufacturing Technology, 2002, 19(8): 558-563.
李宏胜,轮廓跟踪运动控制系统关键技术的研究 [D].南京:东南大学,2005.
实轴空间综合约束下的数控加工速度前瞻策略. 2012,46(2):64-69.
静压导轨误差均化效应影响因素研究. 2010,44(11):33-36.
固定位宽乘法器的量化误差补偿方法及电路实现. 2011,45(12):75-81.
X-Y工作台摩擦误差补偿方法的研究. 2011,45(45):69-73.旋转轴与平移轴联动误差的快速测量及溯源. 2010,44(6):80-84.
坐标测量机动力学刚度估计与加速度误差补偿. 2009,43(1):47-51.
线结构光扫描测头误差分析与补偿方法. 2008,42(3):286-290.
一种多线结构光测头的误差补偿方法. 2007,41(1):50-54.
0
浏览量
4
下载量
5
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621