Browse Prior Art Database

Compliant Robot Gripper for Circuit Card Insertion And Removal

IP.com Disclosure Number: IPCOM000101463D
Original Publication Date: 1990-Aug-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 2 page(s) / 52K

Publishing Venue

IBM

Related People

Sasaki, N: AUTHOR

Abstract

This article describes a simple robot gripper for circuit card insertion and removal which grasps the card compliantly by the use of spring action.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 77% of the total text.

Compliant Robot Gripper for Circuit Card Insertion And Removal

       This article describes a simple robot gripper for circuit
card insertion and removal which grasps the card compliantly by the
use of spring action.

      The figure illustrates the card removal operation in which the
gripper 10 grasps circuit card 12 inserted in slots of card holder 14
and lifts it from the card holder 14.

      The gripper 10 is attached to the lower end of a robot arm (not
shown) which is movable up and down.  The gripper 10 comprises upper
member 16 and lower member 18.  The upper member 16 is supported
slidably in the vertical direction and normally biased downward by
springs 20.  Vertical bar 22 to which the lower member 18 is attached
can be driven as by air cylinder in the direcation normal to the
plane of the card 12.  Thus the lower member 18 is movable between
"OPEN" and "CLOSE" positions as shown. The "OPEN" position is such
that the lower member 18 does not contact  the card 12 in the holder
14.

      In the card removal operarion, the robot arm with the lower
member 18 at the "OPEN" position is lowered as by air cylinder such
that the upper member 16 engages the upper edge of the card 12.
Continued downward movement of the arm causes the springs 20 to be
compressed until the lower member 18 goes down below the lower edge
of the card 12. When this occurs, the bar 22 and thus lower member 18
is driven to the " CLOSE" position. Next, the arm is moved upw...