A contour error definition, estimation approach and control structure for six-dimensional robotic machining tasks

H Zhao, X Li, K Ge, H Ding - Robotics and Computer-Integrated …, 2022 - Elsevier
Robots are increasingly employed in machining applications, such as milling, grinding and
polishing, etc, and contour error can be used to assess the robotic machining accuracy …

Accelerated iteration algorithm based contouring error estimation for multiaxis motion control

Z Wang, C Hu, Y Zhu - IEEE/ASME Transactions on …, 2021 - ieeexplore.ieee.org
As the basis of contouring motion control, the estimation of contouring error is one of the
most important research topic in the field of multiaxis coordination control. In extreme …

A new effective decoupling method to identify the tracking errors of the motion axes of the five-axis machine tools

S Osei, W Wei, J Yu, Q Ding - Journal of Intelligent Manufacturing, 2024 - Springer
Currently, there are demands for machine tools with higher dynamic performance as a result
of their high machining accuracy and efficiency in designing complex parts in the …

Pre-compensation of contour errors for five-axis machine tools through constructing a model reference adaptive control

QB Xiao, M Wan, Y Yang, WH Zhang - Mechanism and Machine Theory, 2023 - Elsevier
Existing contour error pre-compensation methods are sensitive to modeling errors during the
prediction of contour errors. This article proposes an adaptive contour error pre …

Dynamical model based contouring error position-loop feedforward control for multiaxis motion systems

Z Wang, C Hu, Y Zhu - IEEE Transactions on Industrial …, 2019 - ieeexplore.ieee.org
Contouring motion control plays an important role in modern precision multiaxis motion
systems. In order to enhance the coordination between each axis and promote contouring …

Five-axis contour error control based on spatial iterative learning

J Li, Z You, Y Li, E Miao, R Yue - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In this paper, a contour error control strategy based on spatial iterative learning control
(sILC) is developed for repetitive processing of five-axis computer numerical control (CNC) …

A bidirectional adaptive feedrate scheduling method of NURBS interpolation based on S-shaped ACC/DEC algorithm

H Ni, C Zhang, S Ji, T Hu, Q Chen, Y Liu… - Ieee Access, 2018 - ieeexplore.ieee.org
To improve the interpolation accuracy for the non-uniform rational B-spline (NURBS) curves,
this paper proposes a novel bidirectional adaptive feedrate scheduling (BAFS) method …

A novel curvature circle iterative algorithm for contour error control of multi-axis CNC machine tools

M Yang, J Yang, L Zhu, X Yu - Precision Engineering, 2020 - Elsevier
High-precision real-time estimation of contouring errors is a prerequisite for contouring
errors control of multi-axis CNC machine tools. This paper focuses on developing a nearest …

Cross-coupled control based on real-time Double Circle contour error estimation for biaxial motion system

L Bo, W Taiyong, W Peng - Measurement and Control, 2021 - journals.sagepub.com
In contour machining, contour error is a major factor affecting machining quality. In order to
improve the performance of contour following, many control techniques based on real-time …

Third-order contour-error estimation for arbitrary free-form paths in contour-following tasks

DN Song, YG Zhong, JW Ma - Precision Engineering, 2019 - Elsevier
The contour error in multi-axis free-form path-following tasks is inevitable due to the
existence of factors such as servo lag and external disturbances. Therefore, the control of …