数控车床几何和热误差综合实时补偿方法应用
A Real-time Compensation Method for the Geometric and Thermal Error on CNC Turning Machine
作者：沈金华(上海交通大学 机械与动力工程学院，上海 200240)；李永祥(上海交通大学 机械与动力工程学院，上海 200240)；鲁志政(上海交通大学 机械与动力工程学院，上海 200240)
Author：(School of Mechanical Eng., Shanghai Jiaotong Univ., Shanghai 200240, China)；(School of Mechanical Eng., Shanghai Jiaotong Univ., Shanghai 200240, China)；(School of Mechanical Eng., Shanghai Jiaotong Univ., Shanghai 200240, China)
收稿日期：2007-03-26 年卷（期）页码：2008,40(1):163-166
期刊名称：工程科学与技术
Journal Name：Advanced Engineering Sciences
关键字：数控机床；误差建模；实时补偿;数控系统
Key words：NC machine tool；error modeling；real time compensation；CNC controller
基金项目：高等学校全国优秀博士学位论文作者专项资金资助项目（200131）;上海市引进技术的吸收与创新年度计划资助项目（05－12）
中文摘要
对数控机床几何和热误差进行补偿是提高数控机床加工精度的有效方法。对数控机床的几何误差和热误差进行了分类并给出了建模方法。提出了一种基于外部坐标系偏移功能的误差实时补偿装置并叙述了其实现方法。在K360型数控车床进行了X轴定位误差和主轴径向热误差的补偿试验，证明了这种补偿方法在精度改进中的有效性。
英文摘要
Compensation for the geometric and thermal error is the most effective methods to improve the machining precision. These errors were classified and the normal modeling methods were given. A real-time error compensation controller was developed based on the CNC shift function of external coordinate system. The technology was implemented on CY-K360 CNC turning center and the position error of X axial and the Radial thermal error of the spindle were compensated.The result proved the new method's availability in accuracy improving.
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