Abstract: Dressing device for the welding tips of a spot-welding machine consists of a single tool carried crosswise of a cylindrical opening in a tool holder. The tool holder has opposed slots supporting the tool, with one edge of the slots and therefore one side of the tool at the crosswise centerline of the opening. A cutting edge on that side of the tool and adjacent the tip dresses the tip to provide an essentially flat welding face. The holder and tool are rotated about the tip while the tip is held on an arm of a spot-welding machine. Preferably, when the dressing device is used in a high production situation, the tool is symmetrical and has a pair of outwardly-directed cutting edges on the centerline, simultaneously dresing two tips as they approach the tool from opposite directions.

Abstract: Apparatus for the deburring of longitudinal sections by operating a milling head in response to the sensed position of a burr on the section.

Abstract: A cutter and gear assembly for simultaneously dressing a pair of spaced aligned welding electrode tips comprise a housing with a power-rotated gear journaled thereon for rotation upon a first axis and having an axial bore at one end terminating in an annular seating flange and adjacent its other end having an annular groove. A dressing tool cutter assembly is axially nested within the gear, bears against the seating flange and has a plurality of axially elongated arcuate drive tangs nested within corresponding drive grooves within the bore. A snap ring is anchored within the annular groove and retainingly engages the cutter assembly. The cutter assembly includes a pair of symmetrical outwardly opening cutting elements upon its opposite sides, each cutting element including a plurality of angularly related inclined cutting edges having a profile corresponding to the contour of a pair of aligned electrode tips adapted for axial projection into and against the cutting elements upon the first axis.

Abstract: In a spot welding to effect welding overlaid metal plates clamped by two opposite electrodes to which greater current is applied, tips of the electrodes are frustoconically shaped. Rotative tool (1) having recesses (H, J) respectively of reverse frustoconical shapes is provided with edged portions of notched portions formed by notching radially the peripheral wall thereof and through holes provided at the notched portions. Cut powder generated when the electrodes are cut is dropped off downward from the through holes. Tip ends on ceiling surfaces of the electrodes are cut at the same time by edged portion formed at upper edges (3) provided at the diameter of an extended portion (61) formed by extending over perforated bottoms of the recesses.

Abstract: Apparatus for forming welding electrode chips in which the cutters engage the electrode chips to be formed while the electrode chips remain installed in the welding unit. The cutters are elastically supported to accommodate movement of the electrode chips against the cutters. Movement of the electrode chips is limited by a rigid support. The cutters are rotated manually or by a motor-drive.

Abstract: A side edge surface of a web plate is trimmed by or machined after feeding a milling cutter into the side edge surface of the web plate, which cutter has on its outer peripheral surface cutting edges at a predetermined angle with respect to its rotary axis, and driving the milling cutter in rotation. The rotary axis of the milling cutter is a plane which is kept parallel to a desired machined surface of the side edge surface of the web plate, and the angle formed between the cutting edge of the milling cutter and the side edge surface of the web plate is limited to within 55 degrees to 125 degrees.

Abstract: The combination of a rotary tool and a drive therefor, the tool having a conical taper between 60.degree. and 120.degree. to chamfer or remove burrs from machined workpieces. The tool comprises a casing containing a motor for rotating the tool, the motor having a drive shaft connected for rotation to the tool, and the tool having a shaft coaxial with the drive shaft. The drive shaft and the tool shaft are elastically connected for axial sliding movement of the tool shaft relative to the drive shaft against a force urging the tool shaft in a direction away from the drive shaft. The drive shaft is splined, and the tool shaft has thereon a splined member surrounding and engaging with the splines of the drive shaft.

Abstract: A scarfing apparatus for removing a weld bead from a tube being produced by a continuous method wherein the tube enters one end of a rotatable hollow spindle which supports a tool bit. The tool bit has an arcuate shape having a segment which extends 180.degree. or less about the periphery of the tube. The spindle oscillates rotationally causing the tool bit to rock back and forth across the surface of the moving tube to remove the weld bead. The tool bit is formed of carbide steel containing tantalum, titanium and cobalt. The tool bit has a forward face portion and a bottom face portion which define a tooling edge at their intersection. The bottom face portion slopes upwardly at an angle of approximately 3.degree. to reduce friction on the tube. For use with carbon steel tubing, a bit is used having a forward face portion angled approximately 15.degree. from the vertical. For use with stainless steel or aluminized material, a bit is used having a forward face portion angled back approximately 21.degree.

Abstract: A scarfing apparatus for removing a weld bead from a tube being produced by a continuous method, wherein the tube enters one end of a hollow spindle which rotatably supports a scarfing tool holder on which is mounted a tool bit. The tool bit has an arcuate shape having a segment which extends 180.degree. or less about the periphery of the tube. The other end of the spindle is provided with a sensing device which, in conjunction with a power unit and control means, applies oscillatory rotational movement to the spindle to thereby cause the tool bit to rock back and forth across the surface of the moving tube to remove the weld bead. The tool holder is provided with an undercut section adapted to receive securing means for mounting the tool bit in a manner to facilitate rapid removal thereof for installing a new tool bit without ceasing the operation of the continuous tube-forming apparatus.

Abstract: A deburring machine which includes a power means and a rotating cutter plate adjacent a fixture which holds a work piece with a burr on the end. The cutter plate has a circular cutting opening therein which rotates past the work piece to remove the burr, and there can be a circular row of the cutting holes in the plate.

Abstract: The present invention is directed to machining reforming apparatus for machining electrodes of a resistance welding device. The apparatus comprises a body having an insertion portion for receiving at least one electrode and at least one rotary cutter, the cutter having a cutter portion adapted to extend along a peripheral inclined surface on a front portion of an electrode. A receiving base member is positioned within the body on the axis of rotation of the rotary cutter, wherein the receiving base member is adapted to abut a front end surface of an electrode. The cutter portions are biased radially inward towards an electrode, the biasing device maintaining proper contact between the edge of the cutter and the electrode.

Abstract: Apparatus for removing shop or screw machine part or workpiece. More specifically, the apparatus comprises a bushing with a hole therein for axially guiding the burred end of the part into engagement with a disintegrating mechanism such as a saw, grinder or abrader, in combination with a stop for arresting both the inward movement of the part and the resulting disintegration when the burr becomes disintegrated flush with said flat end.

Abstract: A bulge (12) formed by coldwelding two wire sections (10-11) is removed by advancing the wire through a bore (91) formed in a split cutting tool (64) having a pair of stepped-back tapered surfaces (92,96) at one end. The tapered surfaces terminate along a diameter of the bore to form a pair of spaced semi-elliptical cutting surfaces (93,97) which are successively rendered effective to remove semi-circular sections of the bulge. The apparatus includes facilities (31,32) for temporarily holding the wire in place within the cutting tool (64) and a clamping arrangement (35,36) for securely holding the wire during the weld bulge removal operation.

Abstract: A welding bulge removing apparatus comprises a ring-shaped carrier adapted to be placed by means of rollers on welded pipes at the weld bulge, and being provided with a circumferential guideway and gear rim. It also comprises motor-operated carriages each having a driving gear wheel and support rollers. Mounted on the carriages are milling cutter units movable to and from the weld bulge. The gear wheel and the support rollers are brought respectively into engagement with the gear rim and the circumferential carrier.

Abstract: A tubular cutter with flared end and circular edge is obliquely held and centered by resilient guide elements, one in line (axially) with the edge, the other one acting radially opposite and axially between the first one and the edge. The edge has a larger diameter than the cutter is long (axially), and the latter has its interior contoured for smooth burr removal.

Abstract: An inner burr cutting and inner surface cleaning apparatus comprises a base, a carriage mounted on the base and reciprocable along a long pressure-welded pipe of medium and small diameters, a supporting tube supported at one end thereof by the carriage and insertable into the pipe having an inner burr produced on an inner surface thereof, a first motor mounted on the carriage, a rotary shaft coaxially inserted into the supporting tube, having one end protruding from the other end of the supporting tube and rotated at the other end by the first motor, an inner burr cutting device fixedly mounted on the rotary shaft for cutting off the inner burr, sets of rollers, each set thereof being arranged circumferentially on an outer periphery of the supporting tube for contacting the inner surface of the pipe, a centering device disposed at the other end of the supporting tube for centering the cutting device in the pipe, a second motor mounted on the centering device and having a drive shaft coaxial with the rotary sh

Abstract: A system is disclosed for the controlled depth scoring of conduits for the pneumatic transfer of particulate plastic materials comprising: a scoring assembly having interconnected drive power inlet means, motor drive means, drive coupling means, centering means and controlled depth score cutting means; and feed means connected therewith for longitudinally passing said scoring assembly through said conduits at a controllable uniform speed.

Abstract: A welding bulge removing apparatus comprises a U-shaped carrier adapted to be placed by means of rollers on welded pipes at the weld bulge, and being provided with an arcuate guideway and a toothed segment. It also comprises a motor-operated carriage having a driving gear wheel and support rollers. Mounted on the carrier are cutting tool holders movable to and from the weld bulge. The gear wheel and the support rollers of the carriage are respectively brought into engagement with the toothed segment and the arcuate guide-way of the carrier. The carriage is adapted to be rigidly connected to a lifting mechanism of a vehicle used for raising and carrying the welding bulge removing apparatus, whereby rotation of the carrier is effected, while the carriage remains immobilized.

Abstract: A machine for removing flashing, burrs and the like from castings includes a base having a swivelable workpiece supporting table and inclined surfaces supporting a milling assembly on a saddle such that the saddle is movable, with the milling assembly, in a direction perpendicular to the axis of the spindle sleeve, and the assembly is swivelable on the saddle such that the sleeve axis remains parallel to itself. The spindle is also movable axially. An impact cutting tool is supported on the spindle sleeve and is driven by a piston and cylinder assembly to reciprocate rapidly in an operating position in which the impact tool axis is parallel to the spindle axis. The impact tool assembly is movable from the operating position to a rest position, either by retraction or by a pivoting mechanism. The apparatus can be automatically operated by using a pattern-following arrangement in which the workpiece itself is used as the pattern and the impact tool as the pattern follower.