Accuracy analyzing apparatus for machine tool

Optics: measuring and testing – Angle measuring or angular axial alignment – Alignment of axes nominally coaxial

Reexamination Certificate

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Details

C356S141300, C356S141500, C356S400000

Reexamination Certificate

active

06917418

ABSTRACT:
An accuracy analyzing apparatus1comprises: a light projector2attached to a main spindle26for emitting a light beam having a light axis coaxial with the axis of the main spindle26; a semitransparent mirror3which transmits part of the emitted light beam and reflects other part; a first imaging device4afor receiving the transmitted light beam; a second imaging device4bfor receiving the reflected light beam; and an analyzer10which calculates light receiving positions in the first and second imaging devices4aand4b, which estimates the light receiving position where the reflected light beam is to be received by the second imaging device4bin the case where it is assumed that the axis of the main spindle26coincides 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 spindle26.

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patent: 299 13 445 (2001-02-01), None
patent: 04-207368 (1992-07-01), None
patent: 08-321461 (1996-12-01), None

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