Patent ID: 8549723

Claim:
A method of upsetting a rivet in a workpiece, comprising: slidably coupling a frame relative to a first structure to define a slide axis of the frame; placing the workpiece between opposing jaws of the frame while the frame is in an initial position; moving an anvil mounted on one of the jaws relative to the frame and into engagement with a head on one end of the rivet while the frame remains in the initial position; continuing to impart a force to the anvil in a direction toward the other one of the jaws when the anvil is in engagement with the one end of the rivet to produce a reactive force against the frame to cause the frame to linearly displace along the slide axis parallel to a longitudinal axis of the rivet to a squeeze position to force a die on the other jaw against the other end of the rivet and upset the other end of the rivet.