Patent ID: 7954355
Filing Date: 2011-06-07
Classification: B21K,Y10T

Abstract:
1. A device for automatically adjusting cam timing in a forging machine, comprising: a rotary camshaft extending along a cam axis; a plurality of cams axially arranged on the camshaft for joint rotation therewith, each cam having a plurality of radial recesses angularly arranged apart about the cam axis; a pair of radial support brackets axially arranged apart on the camshaft; a movable support bar supported by the support brackets and extending along a bar axis parallel to the cam axis; a plurality of pressure-operated units mounted on the support bar for joint movement therewith, each pressure-operated unit having a movable pin; and a drive for rotating the support brackets about the cam axis, and for swinging the support bar and the pressure-operated units thereon about the cam axis, until the pin of at least one of the pressure-operated units is positioned in radial alignment with a predetermined one of the recesses of at least one of the cams prior to movement of the pin into the predetermined one recess to lock the one cam in a predetermined angular position on the camshaft.