Hydraulic punch press with ram orienting mechanism
AssigneeW. A. Whitney Corp.
InventorsWilliam B. Scott, Roger V. Sawvell
Life of this patent
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Abstract
The punch is surrounded by a tubular housing carrying a stripper plate and having a hinged door which is latched closed unless the punch is retracted to a tool change position. In addition, means sense the position of the door and prevent automatic cycling of the punch if the door is not closed. To adjust the stripper plate vertically, provision is made of compactly nested threaded rings and, to orient the punch angularly, provision is made of an adjusting mechanism which acts on a rod projecting from the upper end of a hydraulic cylinder and connected to a downwardly projecting ram for reciprocating the punch.
Claims9
A punch press having a vertically reciprocable punch adapted to coact with an underlying die to punch a hole in an intervening workpiece, said press comprising a support, and upright cylinder mounted on said support, a piston slidable upwardly and downwardly within said cylinder, a ram projecting downwardly from said piston and out of the lower end of said cylinder and carrying said punch on its lower end, a rod rigid with the upper end of said piston and projecting upwardly through and journaled slidably in the upper end of said cylinder to help resist the lateral forces imposed on said ram when said punch engages said workpiece, and mechanism connected between said support and the projecting upper end portion of said rod for adjustably orienting the rod and the ram in a selected angular position within said cylinder and for thereafter anchoring the rod and the ram in said selected position.
A punch press comprising a support, a cylinder mounted on said support, a piston movable back and forth within said cylinder and operable to reciprocate a punch, a rod rigid with said piston and projecting out of one end of the cylinder, and mechanism connected between said support and said rod for adjustably orienting the rod and the piston in a selected angular position in said cylinder and for thereafter anchoring the rod and the piston in said selected position, said mechanism comprising a first arm anchored to and projecting radially from the rod, a second arm clamped releasably to and projecting radially from the rod, a post anchored to said support and extending parallel to the direction of movement of said rod, rollers carried on said second arm and ridable along said post to hold said second arm in a fixed angular position while allowing reciprocation of said second arm with said rod, and means operable when said second arm is unclamped from said rod to adjust said first arm angularly relative to said second arm and thereafter to hold said first arm in its adjusted position thereby to orient and hold said rod and said piston in said selected angular position.
Dependencies are inferred from the claim text.