NC circular table and NC circular table apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 25, 2003
Grant Date -
N/A
app pub date -
May 19, 2000
filing date -
Aug 3, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An NC machine tool includes an NC circular table and an NC circular table apparatus which dispense with the original restoration or calibration operation in an absolute type encoder using a backup battery. The NC circular table has an NC controller for performing a positional detection by an absolute type encoder and a backup battery for the encoder is provided in the NC circular table body.
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