Abstract: An ultra-precise boring cartridge and an adjustment device is disclosed. The boring cartridge includes a cam, a cam follower contacting the cam by a sloped portion, and a spring arrangement exerting a biasing force against the cam follower. The adjustment device includes a graduated dial affixed to an annular sleeve having a hexagonal-shaped end engaged with the boring cartridge. In an embodiment, a dial of the boring cartridge is rotated in increments of about 3.6° by the adjustment device, which causes movement of about 0.005 mm of the cam in a X-direction and movement of about 0.001 mm of the cam follower in a Y-direction, thereby selectively adjusting a machining radius of a cutting insert mounted on the cam follower.

Abstract: A device for cutting a preferably thick-walled extruded pipe to length, has at least one cutting tool and a receiving unit for the cutting tool, wherein the cutting tool is movable radially with respect to the extension axis and is rotatable by a further means about the pipe to be cut to length, in order to cut the pipe to length. The receiving unit preferably has two toothed rods arranged in a block, wherein the first toothed rod is movable back and forth axially and the second toothed rod radially with respect to the extension axis, the axial movement is converted into a radial movement, and the cutting tool is arranged on the second toothed rod.

Abstract: A device for cutting a preferably thick-walled, extruded pipe to length, has at least one cutting tool and a receiving unit for the cutting tool. The cutting tool is radially movable in relation to the extrusion axis, is rotatable via a further component about the pipe to be cut to length, in order to cut the pipe to length, and is in operative connection with a ring element, which ring element can be moved via an axial drive, and the depth of penetration of the cutting tool and the path of movement can be defined using an adjustment unit. The depth of penetration of the cutting tool and the path of movement can be defined via the axial drive, wherein toothed rails can be moved more or less in order to achieve the desired depth of penetration.

Abstract: A self-adjusting tool for chamfering an end of a cylinder includes a plurality of legs. A distal segment of each of the legs extends in a forward direction of the tool and is placeable about the end of the cylinder. A central body has a rotatable shaft and a mechanism that is operable by rotation of the shaft about a shaft axis. The mechanism is operable to retract the legs inward in tandem toward the cylinder and to rotate the legs about the shaft axis when further retraction of the legs is blocked by contact with the cylinder. One or a plurality of chamfering blades are each attached to one of the legs. A cutting edge of each blade is oriented diagonally forward and inward.

Abstract: An improved dual blade boring tool having a solid surround housing portion in which a pair of parallel spaced transverse channel openings extend perpendicular to the longitudinal axis of the rotatable tool, a pair of dual cutter insert members are mounted in the channel openings, respectively, and are moved in opposite directions to each other responsive to rack and pinion movements of a rotatable cylindrical shaped cam member having at least a rack portion and being meshed to engage pinion portions provided on each of the dual insert members, whereby the rotation of the rack portion of the cam member converts to reciprocating movement of each of the meshed insert members to move oppositely disposed insert members in opposite and corresponding linear directions with respect to the surround housing of the boring tool.

Abstract: A tool for the machining of workpiece surfaces includes at least one adjustable, geometrically defined cutting edge. The tool additionally includes an adjusting device for the adjusting of the distance of the cutting edge to the central axis of tool. The adjusting device has a drive shaft that acts on an adjusting slide via a gearbox, which determines the distance of cutting edge from the central axis of tool. The adjusting slide may be a round slide arranged eccentrically to the central axis of tool. The gearbox may have a high reduction and may directly act on the adjusting slide.

Abstract: The spindle drive unit of a combined machine tool drives the spindle. The tip end of the spindle is provided with a boring tool and a tool head having a rough grinding stone and a finishing grinding stone. The spindle drive unit has a first support unit and a second support unit capable of receiving the spindle therethrough and supporting it rotatably, a linear motor and a column slide mechanism for moving the first and second support unit in the axis direction of the spindle, and a spindle motor for rotating the spindle.

Abstract: In a multi-axis machine tool comprising a first slide way (2a) and a second slide way (2b) set apart one from the other and extending parallel along a longitudinal axis (X), a machining station (3) delimited laterally by the slide ways (2a, 2b), a cross member (4) presenting opposite ends (4a, 4b) each coupled to a respective slide way (2a, 2b), and a machining head (5) mounted to the cross member (4) and positionable over the machining station (3), at least the cross member (4) is fashioned from a low thermal expansion material.

Abstract: A boring and turning mill, comprising a nonrotatable tool ram, a rotationally drivable tool spindle in the tool ram, an auxiliary head which can be attached to the tool ram in a nonrotatable manner, two work slides arranged in opposition to each other and displaceable and movable in a radially adjustable manner in the auxiliary head, each slide having a respective tool receptacle, and a drive connection to the slides for effecting a radial infeed movement of the work slides, between the tool spindle and the work slides. The drive connection is a threaded spindle which engages threads on the work slides, so that axial movement of the threaded spindle causes radial movement of the work slides.

Abstract: A thread cutter for pipe ends has a tool head rotating coaxially with respect to a fixedly clamped pipe end and provided at tool holders in the form of radial sliders. Actuators which are parallel to the rotation axis are mounted on a frame shiftable with respect to the head for synchronously radially displacing the sliders and gears mesh with racks of neighboring sliders. The gears are formed with an integrated centrifugal force balancing system.

Abstract: The transmission of the rotational movement to the driving pinion of the carriage is provided by: a first gear train with a cage mounted so that it can rotate about the axial shaft and the crown wheel of which meshes with a pinion fitted onto the shaft of an electric motor carried by the body, this train carrying at least two superposed planet pinions and meshing, in the case of the upper one, with a set of teeth formed around the axial shaft and, in the case of the lower one, with an output sun gear, a second train, the sun gear of which is secured to the output sun gear of the first train and meshes with the upper planet pinion of at least one set of superposed planet pinions which are mounted so that they are free to rotate in a continuation of the body, the lower planet pinion meshing with a set of teeth which, formed on the driving pinion of the carriage, is distinct from the set of teeth that collaborates with the rack of this carriage, these two sun gears having ratios which are other than 1 and in

Abstract: A cutting tool having a shank held in a chuck. Mounted in the shank is an insert holder and a carbide insert held therein. The insert holder extends radially beyond the shank, with the insert on its extended end. The insert can be adjusted as to radial extension, by swingable adjustment, and held in adjusted position by tightening the holder. A gear is provided for swinging the holder, and a visual dial is provided to show the position of adjustment.

Abstract: A facing head includes a housing with a center axis and a rotary slide with a rotation axis offset from the housing center axis. At least one cutter plate is provided on the rotary slide and rotatable therewith. A centrifugal drive is located in the housing which rotates the rotary slide about its axis of rotation. The centrifugal drive includes at least two driving bodies which are mounted within the base body of the facing head and which are displaceable essentially perpendicular to the center axis under the influence of centrifugal force. The rotary slide rotates under the influence of a spring return device when centrifugal force does not move the driving bodies outward. A coupling device in the form of a gear wheel on the rotary slide co-operates with racks on the driving bodies so that the driving bodies move together but in opposition.

Abstract: A generating head assembly for cutting or machining a surface on a workpiece and including a generating head mounted for relative rotation with the workpiece and with cutting or machining members having a radially advanced cutting or machining position for cutting or machining the surface of the workpiece and a radially retracted non-cutting on non-machining position; the generating head assembly includes an actuating structure for providing relative rotation between the generating head and the workpiece and a rotary motor mounted with the generating head; the rotary motor is selectively operable to rotate an actuating shaft relative to the generating head to actuate the cutting or machining members to their radially advanced and retracted positions without axial thrust loads being applied to the generating head.

Abstract: A generating head assembly for cutting or machining a surface on a workpiece and including a generating head mounted for relative rotation with the workpiece and with cutting or machining members having a radially advanced cutting or machining position for cutting or machining the surface of the workpiece and a radially retracted non-cutting on non-machining position; the generating head assembly includes an actuating structure for providing relative rotation between the generating head and the workpiece and a rotary motor mounted with the generating head; the rotary motor is selectively operable to rotate an actuating shaft relative to the generating head to actuate the cutting or machining members to their radially advanced and retracted positions without axial thrust loads being applied to the generating head.

Abstract: The invention concerns an adjustable tool for use in machine tools, with a slide (14) which can be fitted with at least one cutting tool and which can be displaced relative to the rotating main body (10) perpendicularly to the axis of rotation. The invention also calls for a device (20) for the direct measurement of the displacement of the slide (14), the slide being fitted with an electronically read measurement scale (24). This device comprises battery-powered data-processing electronics (20) and is located inside the main body (10). The displacement reading can be presented on a digital display (26) which is also mounted in the tool head.

Abstract: A boring bar having multiple tool stations spaced therealong. A tool holder is carried at a tool station within a bar mounted bushing. A pinion gear on the bushing is in threaded engagement with the tool holder for moving same. A channel along the bar receives a gear rack in mesh with the pinion gear. Bar surfaces along with a closure at each station overlie rack surfaces to prevent chip entry. Tool holder feed including a threaded rod coupled to the rack and extending outwardly from the bar outer end to receive a handwheel. A limit stop is lockable along the bar to limit rack movement.

Abstract: The device comprises a body longitudinally provided with a stem which is suitable for being inserted into the hole of a part being machined. On the body an element is slideably coupled which has an element for attachment to the mandrel of the machine tool, which element is adapted for imparting rotation to the body itself. On the stem is slideably mounted a shaft which is articulated at its end with a tool and is coupled to the attachment element so that an axial sliding of the same element towards the part being machined actuates a sliding motion in the opposite direction of the shaft adapted for actuating the radial projection of said tool from said stem.

Abstract: A two axis numerically controlled contour boring machine adapted for interior and exterior machining operations such as boring, facing, grooving, turning and back-facing. The machine comprises a headstock slidably driven along a first axis by a feed motor. The headstock supports a rotatable contouring head having a radial slide which is driven along a second axis perpendicular to the first axis. The radial slide is spindle actuated and includes adjustment means for removing backlash in the drive. The radial slide is adapted to hold quick disconnect type tools selected for the particular machining operation or operations called for by the machining program. The desired contours are generated in the workpiece by the combined motion of the headstock and radial slide along their respective axes under numerical control.

Abstract: A tool is disclosed that offers precision fine adjustment of a cutting tool bit on the tool, having an opening provided with a conical seat, an internally-threaded tool adjustment cartridge having a conical surface engageable with the conical seat, an externally-threaded tool ajustment member threadably engaged within the cartridge, a tensioning mechanism for maintaining the conical surface in self-centering engagement with the conical seat, external gear teeth on the cartridge, and a worm wheel engageable with the external gear teeth of the cartridge to provide for very small movements of the cartridge. Fine adjustment can be performed automatically or manually, and may be performed by access to either axial end of the tool, or to the side thereof adjacent the tool bit.

Abstract: Chamfering apparatus for simultaneously chamfering the I.D. and O.D. of tubular members including an internal cutter for chamfering the I.D. and an external cutter for simultaneously chamfering the O.D., the internal and external cutters being mounted self-adjustably to permit them to simultaneously engage the I.D. and O.D. of tubular members of different I.D.'s and O.D.'s up to a predetermined maximum I.D. and O.D. and to minimize the net torque imparted to the tubular members by such simultaneous chamfering.

Abstract: An improved drive chain for a machine tool such as honing device comprising a machine tool with at least one radially movable work engaging assembly thereon, a power train operatively connected to the honing device to rotate same, and a feed motor positioned in the power chain and rotatable therewith, the feed motor being operatively connected to a power source and to the machine tool whereby energization of the feed motor changes the radial positions of the work engaging assemblies on the honing device. The invention also resides in the rotatable power chain with a motor mounted therein, novel electric contacts for introducing energy to the rotating motor and a novel control circuit for supplying power from the power source to the feed motor.

Abstract: An adjustable fly cutter tool for cutting and forming blanks of metal, wood, plastic, glass, etc. The tool can be used on a conventional lathe or milling machine, and enables the operator to continuously change the depth of the cut into the blank without slowing or stopping the tool operation. The cutting tool is mounted on a threaded bar movable in the x and/or y direction and is axially received in a threaded advancement gear which is actuated by a ratchet assembly that extends or retracts the position of the threaded bar holding the cutter as the main gear is rotated. A non-rotating lever journalled around the cutter drive shaft activates the assembly.

Abstract: A grooving bar is provided for machining grooves on the inside surface of a casting or the like, such as the split casing for a pump. The grooving bar of the present invention can be inserted into a casing, adjusted for a precision cut and moved from one cutting location to the next. In accordance with one embodiment of the invention, a geared-down adjustment mechanism is provided for precise feeding of the cutting tool.