Pulsing impact straightener
AssigneeIndustrial Metal Products Corporation
InventorEdward E. Judge, Jr.
Life of this patent
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Abstract
An automatic production workpiece straightener employing pulsing impact hammer peening blows on the concave curvature side of a distorted workpiece to straighten by imparting compressive stress to the surface fibers thereby permanently deflecting the workpiece in a straightening direction. As applied to rotatable shafts such as cast iron camshafts, a plurality of peening heads deliver rapidly pulsing axially spaced impact blows to cylindrical grooves in the shaft during a limited portion of each continuous revolution as required to provide straightening action with continuous or peening-interrupted automatic gauging for controlling and terminating the straightening action.
Claims42
Elongated production workpiece straightener characterized by means for gauging magnitude and plane of maximum workpiece distortion, means for peening the workpiece surface, and programmable means responsive to said gauging means for automatically controlling the application of said peening on the concave side of said plane of distortion to effect workpiece straightening through compressive elongation of workpiece surface fibers on said concave side.
Method for straightening elongated production workpiece including the steps of, automatically gauging magnitude and plane of maximum workpiece distortion, automatically peening the workpiece surface on the concave side of said plane of distortion to effect workpiece straightening through compressive elongation of workpiece surface fibers on said concave side, automatically changing the circumferential location of said workpiece surface during said peening, automatically gauging the straightening effects of said peening, and automatically controlling the application of further peening until straightening tolerance requirements are met.
Dependencies are inferred from the claim text.