Metal working – Means to assemble or disassemble – Means to assemble electrical device
Patent
1989-05-23
1990-11-27
Echols, P. W.
Metal working
Means to assemble or disassemble
Means to assemble electrical device
74479, B23P 1900
Patent
active
049725742
ABSTRACT:
Disclosed is a table driving apparatus adapted for use with an automatic mounting apparatus or assembling robot comprising a working table movable in at least one direction, and a direct-drive motor having a rotary arm. A mechanism is provided for mechanically coupling the working table and the rotary arm in such a manner that turning movement of the arm can be converted into linearly sliding movement of the working table along the one direction. The direct-drive motor is coupled with the working table with such a small compliance that the resonance frequency of a statem including the direct-drive motor and a load coupled therewith lies out of a frequency range within which the direct-drive motor is operable. This arrangement assures a rigid coupling between the firect-drive motor and the working table with a small compliance, so that the resonance frequency becomes muxh higher than otherwise coupled, thus enabling a stable and precise driving of the working table.
REFERENCES:
patent: 4341128 (1982-07-01), Murakoshi et al.
patent: 4409860 (1983-10-01), Moriyama et al.
patent: 4711537 (1987-12-01), Schindl et al.
Isono Tadao
Sekiguchi Yasuaki
Adams Bruce L.
Echols P. W.
Mamiya Denshi Co., Ltd.
Wilks Van C.
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