CAJ | 학술논문

在分析数控机床传统轮廓误差控制方法不足基础上，提出了一种计算简单、精度高、适合多轴控制的轮廓误差耦合控制方法。该方法包括轮廓误差计算模型和轮廓误差耦合控制方案两部分。提出的轮廓误差计算模型把当前采样周期实际刀具位置到本周期和上一周期插补指令点连线的最短距离近似为轮廓误差；设计的轮廓误差耦合控制方案，实现了对轮廓误差的实时补偿控制。数控仿真加工结果表明所提出轮廓误差耦合控制方法能够有效提高轮廓控制精度。
재분석수공궤상전통륜곽오차공제방법불족기출상，제출료일충계산간단、정도고、괄합다축공제적륜곽오차우합공제방법。해방법포괄륜곽오차계산모형화륜곽오차우합공제방안량부분。제출적륜곽오차계산모형파당전채양주기실제도구위치도본주기화상일주기삽보지령점련선적최단거리근사위륜곽오차；설계적륜곽오차우합공제방안，실현료대륜곽오차적실시보상공제。수공방진가공결과표명소제출륜곽오차우합공제방법능구유효제고륜곽공제정도。
On the basis of analyzing the weakness of conventional machine contour control methods, a multi-axis contour error coupled control approach is put forward, which is calculate-simple and high-preci-sion. The developed approach includes contour error calculation model and contour error cross-coupled scheme. The contour error calculation model defines the shortest distance from the actual tool position of current sampling period to the line between the adjacent two interpolation points of the current and the last sampling period, as the contour error. The contour error coupled control scheme can realize real-time con-tour error compensation. The simulation results show that the developed method is effective to improve CNC machine tool contour accuracy.