Trajectory generation and control of a 9 axis CNC micromachining center

A novel 9-axis micro-machine is presented. The machine has three linear motor driven major axes and a magnetically levitated rotary table with six degrees of freedom. The table can rotate freely with pitch, roll, and yaw and three linear short stroke motions. The major drives bring the tool to the v...

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Bibliographic Details
Published in:CIRP annals 2016, Vol.65 (1), p.349-352
Main Authors: Yuen, A., Altintas, Y.
Format: Article
Language:English
Subjects:
CNC
Degrees of freedom
Kinematics
Mathematical analysis
Micro machining
Micromachining
Position (location)
Rolling motion
Simulation
Strokes
Tables (data)
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Description
Summary:A novel 9-axis micro-machine is presented. The machine has three linear motor driven major axes and a magnetically levitated rotary table with six degrees of freedom. The table can rotate freely with pitch, roll, and yaw and three linear short stroke motions. The major drives bring the tool to the vicinity of target location while the magnetically levitated table positions the machine accurately. All nine drives are controlled simultaneously by considering the redundant kinematics of the machine without saturating the stroke limits. Simulation and experiments show the generated reference commands do not violate the limits of the feed drives, and is sufficiently accurate.
ISSN:0007-8506
DOI:10.1016/j.cirp.2016.04.098