Browse Prior Art Database

Unidirectional Coupling for Spindle Driven Tables

IP.com Disclosure Number: IPCOM000049015D
Original Publication Date: 1982-Apr-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Lennemann, E: AUTHOR [+2]

Abstract

This coupling has been developed for high-precision forward?reverse tables with spindle drives. The coupling ensures high stiffness in the forward?reverse drive directions and low stiffness in the directions extending transversely thereto, so that the spindle and the linear bearings of the table are not subjected to undue forces caused by misalignment.

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Unidirectional Coupling for Spindle Driven Tables

This coupling has been developed for high-precision forward?reverse tables with spindle drives. The coupling ensures high stiffness in the forward?reverse drive directions and low stiffness in the directions extending transversely thereto, so that the spindle and the linear bearings of the table are not subjected to undue forces caused by misalignment.

Spindle nut 1 on drive spindle 2 has attached to it a thin steel rod 3 whose ends are inserted in blocks 4 on which table 5 is arranged. Damper element 6, in which rod 3 is embedded, is located between blocks 4. Blocks 4 together with the thin rod 3 ensure low stiffness in the directions extending transversely to the drive directions, whereas in the drive directions proper the longitudinal stability of rod 3 makes for high stiffness. Damper element 6 may be made of polyurethane rubber or similar material.

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