Shaft straightening press with a traveling ram

Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path

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Details

72447, 308 3A, 269310, B21D 905

Patent

active

044932049

ABSTRACT:
A shaft straightening press including a movable carriage which moves along the length of an "I" beam frame and includes a hydraulic ram used for straightening a shaft placed upon the "I" press bed. The carriage rides upon the lower flange of the "I" beam by means of four wheels fixed to the carriage and making rolling contact with the upper surface of the lower flange. The carriage is locked into place by a pair of hydraulic jacks which lift the carriage, thereby disengaging each of the wheels from rolling contact with the lower flange. The carriage has a cross-sectional shape of a rectangular frame so that when the hydraulic jacks are lifted, the lower end of the rectangular frame of the carriage contacts the lower surface of the lower flange of the "I" beam, thereby securely locking the frame-shaped carriage in place. Slideable precision roller blocks and V-blocks are provided on the upper flange of the "I" beam for positioning and orienting the shaft to be straightened. The V-blocks include a means whereby each V-block is disengaged when unloaded to facilitate its horizontal displacement on the "I" beam and is frictionally engaged with the press bed when loaded, thereby substantially fixing the V-block in place.

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