Heavy Duty Clamping Gripper Assembly for Robotic Devices
Original Publication Date: 1987-Mar-01
Included in the Prior Art Database: 2005-Feb-01
A technique is described whereby a heavy duty gripper assembly, as applied to robotic devices, is designed to provide a clamping force of up to three thousand pounds while the gripper assembly maintains a total weight of under twenty pounds. The gripper is unique in that the clamping force will maintain sufficient holding power to the product, even if the actuating air pressure falls to zero or if power fails. Also, the gripper has the ability of picking up various shapes and weights through the use of quick-changing gripper pads. The heavy duty clamping gripper assembly consists of two flat pneumatic cylinders 2 mounted onto base plate 1. Each cylinder 2 actuates a pair of gripper arms 3 by means of clevis 4 that is attached to the cylinder rod. Clevis 4 has two hardened shafts 6 pressed into two bearings 5.