Method of generating an error map for calibration of a robot or multi-axis machining center
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United States of America Patent
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Mar 18, 2003
Issued Date -
N/A
app pub date -
May 3, 1995
filing date -
Feb 23, 1993
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Abstract
A novel, portable coordinate measuring machine comprises a multijointed (preferably six joints) manually positionable measuring arm for accurately and easily measuring a volume, which in a preferred embodiment, comprises a sphere ranging from six to eight feet in diameter and a measuring accuracy of 2 Sigma +/-0.005 inch. In addition to the measuring arm, the present invention employs a controller (or serial box) which acts as the electronic interface between the arm and a host computer. The coordinate measuring machine of this invention is particularly useful in a novel method of generating an error map and thus correcting and/or programming the tool path for multi-axis machining centers, particularly robots.
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