Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent
1977-12-14
1980-04-29
Braun, Leslie
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
74479, 269 73, F16H 2702, F16H 2902, F16H 2920
Patent
active
041999967
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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Aikawa Tetsuo
Kamiya Masashi
Moriwaki Yoshinaga
Ohshio Hirosuke
Terashima Masaharu
Braun Leslie
Tokyo Shibaura Electric Co. Ltd.
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