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IJAT Vol.15 No.5 pp. 611-620
doi: 10.20965/ijat.2021.p0611
(2021)

Paper:

Machining Performance of Robot-Type Machine Tool Consisted of Parallel and Serial Links Based on Calibration of Kinematics Parameters

Keisuke Nagao, Nobuaki Fujiki, Hiroto Tanaka, Akio Hayashi, Hidetaka Yamaoka, and Yoshitaka Morimoto

Kanazawa Institute of Technology
7-1 Ohgigaoka, Nonoichi, Ishikawa 921-8501, Japan

Corresponding author

Received:
February 16, 2021
Accepted:
April 20, 2021
Published:
September 5, 2021
Keywords:
parallel mechanism, calibration, forward kinematics, articulated arm coordinate measuring machine (AACMM), robot-type machine tool (RTMT)
Abstract

This study aims to calibrate the posture of a robot-type machine tool comprising parallel and serial links using a kinematics error model and verify the machining performance based on the measurement results of a machined workpiece calibrated with kinematics parameters. A robot-type machine tool (XMINI, Exechon Enterprises LLC) is used in this study. Typically, the performance required of a robot-type machine tool is not only dimensional accuracy but also the contour accuracy of the machined workpiece. Therefore, in this study, we first construct a forward kinematics model of a robot-type machine tool and identify the kinematics parameters used in it via spatial positioning experiments using a coordinate measuring machine. Based on the parameter identification results, we calibrate this robot-type machine tool and evaluate its machining performance in terms of the dimensional accuracy and contour accuracy of the machined workpiece.

Cite this article as:
K. Nagao, N. Fujiki, H. Tanaka, A. Hayashi, H. Yamaoka, and Y. Morimoto, “Machining Performance of Robot-Type Machine Tool Consisted of Parallel and Serial Links Based on Calibration of Kinematics Parameters,” Int. J. Automation Technol., Vol.15 No.5, pp. 611-620, 2021.
Data files:
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