Table driving apparatus

Details Table driving apparatus Table driving apparatus

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.

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