This paper presents an analytical study on the command generation for five-axis CNC machining or CMM measurement. In the integration of CAD and CAM, it is necessary to relate machine tool kinematics and control in a CAM process to the geometrical data in a CAD model. The data stored in a CAD model is usually static in nature and represented by unitless parameters. Yet, in machine tool motion and control, the data should be transformed into a time dependent domain. In this paper, a general theory on the conversion from desired paths to motion trajectory is analytically derived. The geometrical properties of a desired path, including position, tangent, and curvature are related to the kinematics of coordinated motion including feedrate, acceleration and jerk. As a result, the motion commands used as control references to track arbitrary space curves for five-axis computer-controlled machines can be generated in a rather straight-forward as well as systematic way.
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February 1992
This article was originally published in
Journal of Engineering for Industry
Research Papers
On the Generation of Coordinated Motion of Five-Axis CNC/CMM Machines
Jui-Jen Chou,
Jui-Jen Chou
Department of Mechanical, Aerospace and Nuclear Engineering, University of California, Los Angeles, CA 90024
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D. C. H. Yang
D. C. H. Yang
Department of Mechanical, Aerospace and Nuclear Engineering, University of California, Los Angeles, CA 90024
Search for other works by this author on:
Jui-Jen Chou
Department of Mechanical, Aerospace and Nuclear Engineering, University of California, Los Angeles, CA 90024
D. C. H. Yang
Department of Mechanical, Aerospace and Nuclear Engineering, University of California, Los Angeles, CA 90024
J. Eng. Ind. Feb 1992, 114(1): 15-22
Published Online: February 1, 1992
Article history
Received:
August 1, 1990
Revised:
January 1, 1991
Online:
April 8, 2008
Citation
Chou, J., and Yang, D. C. H. (February 1, 1992). "On the Generation of Coordinated Motion of Five-Axis CNC/CMM Machines." ASME. J. Eng. Ind. February 1992; 114(1): 15–22. https://doi.org/10.1115/1.2899753
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