Accuracy analyzing apparatus for machine tool
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United States of America Patent
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-
Jul 12, 2005
Grant Date -
Oct 2, 2003
app pub date -
Mar 25, 2003
filing date -
Mar 27, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An accuracy analyzing apparatus 1 comprises: a light projector 2 attached to a main spindle 26 for emitting a light beam having a light axis coaxial with the axis of the main spindle 26; a semitransparent mirror 3 which transmits part of the emitted light beam and reflects other part; a first imaging device 4a for receiving the transmitted light beam; a second imaging device 4b for receiving the reflected light beam; and an analyzer 10 which calculates light receiving positions in the first and second imaging devices 4a and 4b, which estimates the light receiving position where the reflected light beam is to be received by the second imaging device 4b in the case where it is assumed that the axis of the main spindle 26 coincides with the first axis, and which compares the estimated light receiving position with the calculated light receiving position to analyze the perpendicularity of the axis of the main spindle 26.
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