Adjustable die and key assembly
AssigneePennsylvania Crusher Corporation
InventorsFred Kramer, Gregg Gill
Life of this patent
Estimating the term…
Abstract
An assembly for precisely positioning a pair of die members beneath a reciprocating press ram, wherein a clamping assembly extends between each die member and a frame supported on a bed of the press for clamping and unclamping the die members. A self-lifting assembly provides a force which bears downwardly against the frame and upwardly against the die members for appreciably reducing frictional contact therebetween. An adjustable key is positioned for aligning the frame beneath the reciprocating ram. Finally, positioning apertures are provided for aligning the die members relative to one another on the frame.
Claims19
An assembly for precisely positioning a pair of die members on the bed of a press beneath a ram mounted for movement toward and away from said bed, said assembly comprising:
- a frame member having an upwardly facing surface for supporting said die members;
- clamping means extending between each of said die members and said frame member for selectively clamping and unclamping each of said die members with respect to said upwardly facing surface;
- and
- self-lifting means on said die members for lifting said die members, when unclamped, out of contact with said upwardly facing surface.
An assembly for precisely positioning a pair of die members on the bed of a press beneath a ram mounted for movement toward and away from the bed, said assembly comprising:
- a frame member having an upwardly facing surface for supporting said die members;
- clamping means extending between each of said die members and said frame members for selectively clamping and unclamping each of said die members with respect to said upwardly facing surface;
- positioning means, independently operable of said clamping means, extending between the die members and preselected locations on said upwardly facing surface of said frame member for accurately positioning the die members relative to one another on said frame member;
- and
- self-lifting means on said die members for lifting said die members, when unclamped, out of contact with said upwardly facing surface.
An assembly for precisely positioning a pair of die members on the bed of a press beneath a ram mounted for movement toward and away from said bed, said bed having a groove therein for establishing a reference position in said bed relative to the plane in which the longitudinal axis of the ram moves, said assembly comprising:
- a frame member having a lower facing surface and an upwardly facing surface;
- a keyway in said frame;
- clamping means extending between each of said die members and said frame member for selectively clamping and unclamping each of said die members with respect to said upwardly facing surface;
- and
- adjustable key means positioned on said frame at said lower surface for engaging said groove and keyway and adjusting said frame to compensate for failure of the centerline of the die members to correspond with the plane in which the longitudinal axis of the ram moves.
An assembly for precisely positioning a pair of die members on the bed of a press beneath a ram mounted for movement toward and away from said bed, said bed having a groove therein for establishing a reference position in said bed relative to the plane in which the longitudinal axis of the ram moves, said assembly comprising:
- a frame member having a lower facing surface and an upwardly facing surface;
- a keyway in said frame;
- clamping means extending between each of said die members and said frame member for selectively clamping and unclamping each of said die members with respect to said upwardly facing surface;
- self-lifting means providing a downwardly directed force against said frame member and an upwardly directed force against said die members for appreciably reducing frictional contact between the die members and frame member;
- positioning means for aligning said die members at predetermined locations on said upwardly facing surface;
- and
- adjustable key means positioned on said frame member at a lower facing surface for engaging said keyway and groove and adjusting said frame to compensate for failure of the centerline of the die members to correspond with the plane in which the longitudinal axis of the ram moves.
Dependencies are inferred from the claim text.