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Magnetic Storage Device for Special Purpose Tools

IP.com Disclosure Number: IPCOM000040189D
Original Publication Date: 1987-Oct-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Brown, DL: AUTHOR

Abstract

On occasion, it is necessary to design special purpose tools to allow a robot to complete a task. A device is described which stores and retrieves special-purpose tools using robot motion. The device 10 consists of two L-shaped mated brackets 11,12 which are adjustable vertically by screw-slot arrangement 13. Top bracket 12 contains centered dowel pin 14 and cavity 15 into which is mounted permanent magnet 16. Tool 17 contains hole 18 corresponding to dowel 14, and holds tip 19 (designed for the particular application) with mounting plate 20. Steel pins 21 provide tip alignment and magnetic coupling. In operation, the robot arm deposits tool 17 onto dowel pin 14 (with a loose fit) so that the projecting edge of mounting plate 20 fits loosely against surface 22 of top bracket 12.

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Magnetic Storage Device for Special Purpose Tools

On occasion, it is necessary to design special purpose tools to allow a robot to complete a task. A device is described which stores and retrieves special- purpose tools using robot motion. The device 10 consists of two L-shaped mated brackets 11,12 which are adjustable vertically by screw-slot arrangement 13. Top bracket 12 contains centered dowel pin 14 and cavity 15 into which is mounted permanent magnet 16. Tool 17 contains hole 18 corresponding to dowel 14, and holds tip 19 (designed for the particular application) with mounting plate 20. Steel pins 21 provide tip alignment and magnetic coupling. In operation, the robot arm deposits tool 17 onto dowel pin 14 (with a loose fit) so that the projecting edge of mounting plate 20 fits loosely against surface 22 of top bracket 12. The magnetic force between magnet 16 and steel pins 21 maintains the tool in place for storage, and accurately positions the tool on bracket 12. For retrieval, the robot gripper fingers, which complement the external geometry of the tool, lift the tool by overcoming the magnetic coupling. The proper magnetic forces are provided by the choice of the field strength of the magnet and the thickness of the wall 23 above the magnet.

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