Metal fabricating apparatus

Claim 2

Metal fabricating apparatus of the type described, comprising: a frame including a base portion for supporting a die unit, and an upper support portion spaced above said base portion for operably receiving a ram assembly; a ram assembly mounted to said upper portion of the frame and including a reciprocal ram member; and a die unit including, an anvil arrangement having a stationary die blade, and a shear blade member adapted for releasable connection to said reciprocal ram member; said frame defining opposed wall portions which cooperate to provide a space for reception of the anvil arrangement, said anvil arrangement including a pair of opposed elements, and means for effecting relative movement of said elements toward and away from each other, such that upon initial reception of said anvil arrangement within said spAce, relative separating movement may be employed to cause said elements to engage firmly said wall portions and thereby fix the position of said anvil arrangement relative to said frame.

Claim 3

Apparatus as defined in claim 1 wherein said pair of spaced-apart, relatively movable elements define a space for reception of the shear blade therebetween, and include means for supporting stock material during fabrication.

Claim 4

Apparatus as defined in claim 2 wherein said means for effecting relative movement of said elements comprise; a threaded aperture formed in one said element, and a bolt member carried by the other said opposed element in captive relation thereto, and having a threaded end portion engaged in said threaded aperture, whereby said captive bolt member interconnects said elements and may be rotated to effect relative movement therebetween.

Claim 5

Apparatus as defined in claim 2 wherein one of said opposed elements includes wear resistant means against which said reciprocal shear blade engages during the fabricating operation.

Claim 6

Apparatus as defined in claim 4 wherein said wear resistant means include; a pair of spaced channels formed in said element and disposed parallel to the path of movement of said shear blade, each said channel opening to said shear blade receiving space; and an elongate wear-resistant insert disposed in each said channel and extending from the surface of said element for engagement by the shear blade.

Claim 7

Apparatus as defined in claim 2 wherein said anvil arrangement includes, a recessed portion opening into said shear blade receiving space, and a removable die blade member fixedly positioned within said recessed portion.

Claim 8

Apparatus as defined in claim 1 wherein said anvil arrangement includes a pair of interconnected, spaced apart plate members, said plate members defining said opposed relatively movable elements for engaging the frame wall portions.

Claim 9

A die unit for use with metal fabricating apparatus of the type including a frame having a base portion for supporting said die unit, and an upper support portion spaced above said base portion and having a ram assembly operably mounted thereon, wherein said die unit is received for mounting between opposed wall portions of said frame, said die unit comprising; an anvil assembly for reception between said wall portions, said anvil assembly including stationary die blade means adapted for cooperation with a reciprocal shear blade connected to said ram arrangement, and mounting means for fixing the position of said anvil arrangement relative to said frame, said mounting means including a pair of opposed elements, each having a surface for engagement with an adjacent one of said opposed frame wall portions, and adjustment means for effecting relative movement of said opposed elements, whereby after initial positioning of said die unit said adjustment means may be operated separate from said elements, causing said elements to engage said opposed wall portions and thereby fix the position of the die unit relative thereto.

Claim 10

A die unit for use with metal fabricating apparatus of the type including a frame having a base portion for supporting said die unit, and an upper support portion spaced above said base portion and having a ram assembly operably mounted thereon, wherein said die unit is received for mounting between opposed wall portions of said frame, said die unit comprising; an anvil assembly for reception between said wall portions, said anvil assembly including stationary die blade means adapted for cooperation with a reciprocal shear blade connected to said ram arrangement, and mounting means for fixing the position of said anvil arrangement relative to said frame, said mounting means including a pair of opposed elements, each having a surface for engagement with an adjacent one of said opposed frame wall portions, and adjustment means for effecting relative movement of said opposed elements, whereby after initial positioning of said die unit said adjustment means may be operated separate from said elements, causing said elements to engage said opposed wall portions and thereby fix the position of the die unit relative thereto.

Claim 11

A die unit as defined in claim 8 further including a reciprocal shear blade carried by said anvil arrangement for connection to a movable ram member.

Claim 12

A die unit as defined in claim 9, wherein said opposed elements for engaging the frame wall portions are defined by a pair of platelike members, said members being interconnected and spaced apart to provide for reception of a shear blade therebetween.

Claim 13

A die unit as defined in claim 10 wherein one of said platelike members includes wear resistant means against which said reciprocal shear blade will engage during the fabricating operation.

Claim 14

A die unit as defined in claim 11 wherein said wear resistant means include; a pair of spaced channels formed in said member and disposed parallel to the path of movement of said shear blade, each said channel opening to said shear blade receiving space; and an elongate wear-resistant insert disposed in each said channel and extending from the surface of said member for engagement by the shear blade.

Claim 15

A die unit as defined in claim 10 wherein one said member includes, a recessed portion opening into said shear blade receiving space, and a removable die blade member fixedly positioned within said recessed portion.

Claim 16

A die unit as defined in claim 8 wherein said adjustment means for effecting relative movement of said elements comprise; a threaded aperture formed in one said element, and a bolt member carried by the other said opposed element in captive relation thereto, and having a threaded end portion engaged in said threaded aperture, whereby said captive bolt member interconnects said elements and may be rotated to effect relative movement therebetween.