Abstract: A deburring tool for deburring an aperture of a work piece is disclosed. The tool includes an arbor rotatable about a central axis and having proximal and distal ends spaced from each other along the central axis. The arbor defines a slot between the proximal and distal ends. The tool includes a cutter coupled to the distal end and rotatable about a pivot axis between a cutting position, a first non-cutting position, and a second non-cutting position opposite the first non-cutting position. The tool includes a pivot disposed through the cutter and coupled to the distal end of the arbor. The tool includes a lever disposed in the slot of the arbor and movable between an engaged position engaging the pivot for applying a load to the pivot and the cutter and a disengaged position spaced from the pivot for removing the pivot and the cutter from the arbor.

Abstract: A deburring tool for deburring an aperture of a work piece is disclosed. The tool includes an arbor rotatable about a central axis and having proximal and distal ends spaced from each other along the central axis. The arbor defines a slot between the proximal and distal ends. The tool includes a cutter coupled to the distal end and rotatable about a pivot axis between a cutting position, a first non-cutting position, and a second non-cutting position opposite the first non-cutting position. The tool includes a pivot disposed through the cutter and coupled to the distal end of the arbor. The tool includes a lever disposed in the slot of the arbor and movable between an engaged position engaging the pivot for applying a load to the pivot and the cutter and a disengaged position spaced from the pivot for removing the pivot and the cutter from the arbor.

Abstract: The subject invention provides a work support apparatus (20) including a spring pin assembly (32) for biasing a work piece (22) against a work stop (24), which includes a table (26) having a recess (30) with the spring pin assembly (32) disposed therein. The spring pin assembly (32) includes a housing having a side wall (48) and a top wall (50) having a circular opening (52) therethrough and a domed inner surface (54) extending upwardly from the side wall (48). A retaining pin (40) having a flat bottom surface (56) and a semi-spherical bottom portion (58) is urged against the domed inner surface (54) by a compression spring (42). A spring cup (44) transmits forces between the compression spring (42) and the flat bottom surface (56) of the retaining pin (40). A tool receiving device receives a tool for operating a holding mechanism (34) for securing the spring pin assembly (32) in the recess (30) such that the spring pin assembly (32) is removable from the top surface (28) of the table (26).

Abstract: A backspot facing tool includes a shaft and a cutting element. The shaft has a first and second ends and a recess located near the first end. The shaft also includes an outer circumference and is centered on a first axis. The cutting element has an inner portion and an outer portion and is pivotally coupled to the shaft about a second axis. The cutting element is movable between a closed position and an open position.

Abstract: The subject invention provides a work support apparatus (20) including a spring pin assembly (32) for biasing a work piece (22) against a work stop (24), which includes a table (26) having a recess (30) with the spring pin assembly (32) disposed therein. The spring pin assembly (32) includes a housing having a side wall (48) and a top wall (50) having a circular opening (52) therethrough and a domed inner surface (54) extending upwardly from the side wall (48). A retaining pin (40) having a flat bottom surface (56) and a semi-spherical bottom portion (58) is urged against the domed inner surface (54) by a compression spring (42). A spring cup (44) transmits forces between the compression spring (42) and the flat bottom surface (56) of the retaining pin (40). A tool receiving device receives a tool for operating a holding mechanism (34) for securing the spring pin assembly (32) in the recess (30) such that the spring pin assembly (32) is removable from the top surface (28) of the table (26).

Abstract: A backspot facing tool includes a shaft and a cutting element. The shaft has a first and second ends and a recess located near the first end. The shaft also includes an outer circumference and is centered on a first axis. The cutting element has an inner portion and an outer portion and is pivotally coupled to the shaft about a second axis. The cutting element is movable between a closed position and an open position.

Abstract: A cutting tool (1) comprises an elongate shank (2), one end (3) of which is adapted to be secured in a machine tool and the other end (4) of which constitutes a cutting head. A portion of the shank (2) intermediate its ends is provided with at least one adjustable screw device (9) comprising a screw (12) and a tapped bore (13), the screw (12) having a frusto-conical bearing surface (14) operable on a portion of the shank (2) to induce a bending moment (1A, 4A, 9A, 12A) on the shank (2), for eccentricity correction.

Abstract: A reamer for finish machining a bore formed in a workpiece and method for providing a reamer with an abrasion resistant material. The reamer includes a body defining an outer surface, a cutting blade and guide member each coupled to the body, and an abrasion resistant material coupled to the reamer to form a friction resistant layer having a contact surface thereon. The abrasion resistant material impregnates the reamer to define an intermediate layer of abrasion resistant material intermixed with the reamer. The method includes the steps of assembling the reamer, applying an abrasion resistant material to said reamer, and allowing the abrasion resistant material to impregnate the reamer to define an intermediate layer of abrasion resistant material intermixed with the reamer.

Abstract: An internal welding fixture is disclosed for locating and temporarily retaining two tubular workpieces relative to one another. The internal welding fixture includes a plurality of shoe assemblies, each of the shoe assemblies being radially disposed about a single axis and being radially movable between a contracted position and an expanded position. The shoe assemblies are equally divided into first and second groups of shoe assemblies. The internal welding fixture further includes a drive arrangement operatively connected to each of the shoe assemblies for moving each shoe assembly between its contracted position and its expanded position. The shoes of one of the groups of shoe assemblies are interconnected to the actuator through a delay mechanism which serves to mechanically delay retraction. Upon expansion of the shoe assemblies, the internal welding fixture is operative to reinforce and temporarily retain a joint formed between two tubular workpieces during a joining procedure, such as welding.

Abstract: A machine tool apparatus having a burnishing head assembly coupled directly to a hollow, tubular output shaft of the motor of the apparatus. The tubular output shaft is coupled to the armature of the motor and allows a cylindrical workpiece or part inserted into the burnishing head assembly to be received and fed coaxially through the motor. The burnishing head assembly is coupled to the motor such that rotation of the tubular output shaft of the motor causes a corresponding rotation of a plurality of rolls of the burnishing head assembly. When the rolls come into contact with a surface of the workpiece or part, they bear against the surface to effect a roller burnishing of the surface. In the preferred embodiment the rolls are set at a helix angle which causes the rolls to draw the workpiece or part through the tubular output shaft of the motor and burnishing head assembly once contact with the rolls is made, to thereby obviate the need for an individual to manually feed in the part.

Abstract: A welding fixture is disclosed for temporarily retaining two tubular workpieces relative to one another. The welding fixture includes a plurality of shoe assemblies, each of the shoe assemblies being radially movable between a contracted position and an expanded position. The welding fixture further includes an actuator operatively connected to each of the shoe assemblies for selectively moving each shoe assembly between the contracted position and the expanded position. Upon expansion of the shoe assemblies, the welding fixture is operative to reinforce and temporarily retain a joint formed between two tubular workpieces during a joining procedure, such as welding.

Abstract: A clamp that encircles the outer rim of an out-of-round workpiece such as a deformed tubular pipe to reform the cross-section of same into one that is substantially round, the clamp including a frame, a plurality of pivotally mounted force applying assemblies each having a force applying member to engage the workpiece, and drive means for pivoting all of the force applying assemblies simultaneously such that the force applying members are simultaneously and uniformly repositioned radially inwardly and outwardly relative to a circle defining the locus of pivot axes for the force applying members, the force applying members being adapted to close into a circle having a diameter sized to engage the workpiece when inserted therein.

Abstract: A roller burnishing tool is disclosed having inner and outer pluralities of concentrically disposed, precision tapered rolls. A precision tapered annular mandrel is disposed within the inner plurality of rolls and operates to controllably urge the inner plurality of rolls outwardly against a lip of a workpiece inserted between the inner and outer pluralities of rolls. The inner plurality of rolls forces the lip outwardly into contact with the outer rolls, and the pressurized contact of the rolls effects a burnishing action on the surfaces of the lip of the workpiece. In a preferred embodiment, the burnishing tool also includes a pilot stop for receiving an alignment post used to align the workpiece with the burnishing tool.

Abstract: A flange alignment tool for temporarily aligning and holding a flange of a workpiece in concentric alignment with a tubular workpiece such as a pipe. The tool includes a C-shaped frame member having integrally formed first and second opposing end portions, a transverse frame section extending between the first and second opposing end portions, and an elongated base portion extending outwardly from the second end portion. The first opposing end portion, transverse frame section, and base portion each contain threaded apertures and associated, manually adjustable alignment screws. The tool is secured to a flange by placing it over an outer edge portion of the flange with an outer surface of the flange abuttingly engaging the second opposing end portion of the C-shaped frame member. The alignment screw of the first opposing end portion is then manually screwed into contact with an inner surface of the flange to secure the C-shaped frame member securely thereto.

Abstract: A clamp encircles the outer rim of an out-of-round tubular pipe to reform the cross-section of same into one that is substantially round, the clamp including a ring frame, a plurality of pivotally mounted roller assemblies each having a roller to engage the pipe rim, and drive means for pivoting the roller assemblies such that the rollers simultaneously rotate to contract radially inwardly or outwardly relative to a circle defining the locus of pivot axes, the rollers describing first and second circles and being adapted to close into a circle having a diameter sized to engage the pipe, when inserted therein. The clamp can include multiple sets of separately adjustable roller assemblies.

Abstract: A reamer comprises a single, adjustable, elongate carbide blade clamped in position in an axial slot in the reamer periphery by means of a clamping plate, with the slot having a positive rake blade supporting fade so that the blade is adjustable along a line parallel to a tangent to the reamer periphery.

Abstract: Burnishing tools are constructed for operating on internal and external cylindrical surfaces of substantial length to produce a compacted finished surface thereon. The burnishing tool has a mandrel with a truncated conical surface on which truncated conical rollers rotate as the tool is driven in rotation relative to the workpiece. By axially moving the mandrel and cage relative to each other the contraction and expansion of the rollers occurs. The rollers are retracted when the workpiece is to be removed therefrom or applied thereto and are expanded under a predetermined pressure into engagement with the workpiece for producing the burnishing operation under substantial pressure. The machine herein illustrated is self-contained having a pulley driven in rotation by an adjacently supported motor for rotating the burnishing tool while permitting the expansion and retraction of the rollers.

Abstract: A reamer comprises a single, adjustable, elongate carbide blade clamped in position in an axial slot in the reamer periphery by means of a clamping plate, with the slot having a positive rake blade supporting fade so that the blade is adjustable along a line parallel to a tangent to the reamer periphery.