Elliptical shearing apparatus

Details Elliptical shearing apparatus Elliptical shearing apparatus

B - Operations, Transporting

26

D

164/48

B26D 3/16 (2006.01)

Patent

CA 1289055

ABSTRACT A shearing apparatus for bar stock comprising a fixed die and a movable die wherein the movable die comprises a shearing ring carried by an arm at a location intermediate the ends of the arm, an eccentric fixed on a driven shaft is journalled in one end of the arm and the other end of the arm includes a slot which receives a rotationally mounted slide block so that the slot and slide block coact to accommodate combined rotary and translatory movement of that end of the arm. The described arrangement produces an elliptical loop movement of the movable die relative to the fixed die to cleanly shear the stock. Also disclosed is a novel mandrel assembly including a pair of plug members adapted to be positioned within tubular stock to be cut wherein one of the plug members is mounted for selective radial excursion during the shearing operation to accommodate the eccentric movement of the movable die.

516101

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