Modular Fluid-Driven Cylinder Assembly Having Gripping Means at One or Both Ends
Original Publication Date: 1987-Jun-01
Included in the Prior Art Database: 2005-Feb-01
Robotic environments utilize compressed air to actuate grippers and thus are somewhat limited by air pressure and the size of the gripper which can be installed on the robot. Typically, the force of a gripper is a function of the pressure and the area of the piston of the gripper mechanism. The resulting forces in some cases are insufficient for the load to be manipulated. The figure illustrates a fluid-driven cylinder which may be built up to yield the forces required for a particular load. The cylinder comprises a series of identical blocks with a cylindrical bore 12 through the block 10. Also extending parallel to the bore 12 are input passageS 14 and 16. The passages conduct air to and from the operating cylindrical bore 12 to move the piston 18 bidirectionally, which rides within the bore 12.