Table driving device

Details Table driving device Table driving device

1994-07-28

1996-12-24

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

744248R, 108143, 248657, F16H 2524

Patent

active

055864686

ABSTRACT:
It is intended to provide a table driving device which does not make a machine unduly large, and moves a table with high accuracy without being affected by deflection components of a nut as caused by rotation of a feed screw. The table driving device includes a guide portion with which a part of a table is movably engaged, a driving motor for rotating a feed screw, a nut threadedly engaged with the feed screw that is disposed in parallel with a moving direction of the table, a nut holder having a nut connecting portion connected to the nut and an engaging portion movably engaged with the guide portion, and moving along the feed screw and the guide portion together with the nut in accordance with the rotation of the feed screw, and a coupling mechanism for coupling the engaging portion of the nut holder to the part of the table that is engaged with the guide portion through balls that can roll in planes perpendicular to the moving direction of the table.

REFERENCES:
patent: 3665782 (1972-05-01), Loftus
patent: 4372223 (1983-02-01), Iwatani
patent: 4597303 (1986-07-01), Nakaya

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