Precise feeding table apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 29, 1980
Grant Date -
N/A
app pub date -
Dec 14, 1977
filing date -
Dec 16, 1976
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A precise feeding table apparatus which comprises an XY-table assembly including a Y-table and an X-table mounted thereon. Electric motors for supplying a driving force to feed the X- and Y-tables are set on a base of the table apparatus. A driving shaft of the electric motor for the Y-table takes the form of a ball screw to cause a guide carriage supported by the driving shaft to make a minute reciprocation. A moment derived from the reciprocation of the guide carraige is not directly transmitted to the Y-table. A connection rod moving jointly with the guide carriage is connected to an output shaft fitted to the Y-table by means of a coupling including a fluid bearing. The fluid bearing supports the connecting rod in contactless relationship, thereby preventing the vibrations and moments of the connecting rod from being transmitted to the output shaft.
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