A novel integrated dynamic acceleration/deceleration interpolation algorithm for a CNC controller

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• 作者：Meng-Shiun Tsai ; Ying-Che Huang
• 关键词：Contour error ; Acceleration/deceleration before interpolation ; Acceleration/deceleration after interpolation ; Servo dynamic errors
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：87
• 期：1-4
• 页码：279-292
• 全文大小：852 KB
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering
  Production and Logistics
  Mechanical Engineering
  Computer-Aided Engineering and Design
  
• 出版者：Springer London
• ISSN：1433-3015
• 卷排序：87

文摘

In this paper, an integrated dynamic acceleration/deceleration (IDAD) interpolation algorithm which combines the acceleration/deceleration before interpolation (ADBI) and acceleration/deceleration after interpolation (ADAI) is proposed. The IDAD scheme could confine the maximum contour error at the junction of a linear line (G01) block under consideration of the command and servo dynamic errors. The contour error formulation for the IDAD is derived analytically and then utilized for interpolation design. Because the error formulation could predict the command and dynamic errors analytically, the IDAD could adjust the connecting velocity of two blocks such that the overall contour errors are bounded within the given tolerance. The simulation results validate the proposed algorithm that can reduce the contour errors by 50 % but only an increase of 10 % machining time as compared to the integrated acceleration/deceleration (IAD) interpolation technique.