Patent ID: 6109089
Filing Date: 2000-08-29
Classification: B21D

Abstract:
An apparatus for gripping a workpiece having two portions integrally joined at an angle to each other so as to define a generally L-shaped or T-shaped cross-section for the workpiece, the apparatus comprising:a main support defining a generally planar surface;a pair of opposed first gripping members supported on the main support and projecting above the surface thereof, the first gripping members defining a workpiece-receiving space therebetween, the first gripping members being relatively movable toward each other for gripping one of said portions of the workpiece and being relatively movable away from each other for releasing the workpiece;a first actuator supported on the main support and operable to move the first gripping members relatively toward and away from each other;a secondary support rotatably coupled with the main support so as to be rotatable relative to the main support, the secondary support overlying a portion of said surface of the main support and defining a generally planar surface;a pair of opposed second gripping members supported on the secondary support and projecting above the surface thereof, the second gripping members defining a workpiece-receiving space therebetween, the second gripping members being relatively movable toward each other for gripping the other of said portions of the workpiece and being relatively movable away from each other for releasing the workpiece; anda second actuator supported on the secondary support and operable to move the second gripping members relatively toward and away from each other;relative rotational movement between the main and secondary supports permitting the second gripping members to be oriented at different angles relative to the first gripping members so as to accommodate workpieces of varying shapes.