Abstract: A bone material removal device including a cannula, a bone drilling forward tip and a bore widening element including a bone carving portion that slides axially relative to the cannula and extends in a circumferential direction and wherein the axial movement of the bore widening element relative to the cannula brings a carving portions to travel and extend radially in a circumferential direction beyond a surface of the cannula and carve bone from a wall of a bore.

Abstract: A method for making a blind hole in a prefabricated tire and a method for inserting an insert to such a blind hole are disclosed. The former comprises arranging available a prefabricated tire comprising tread blocks forming the tread of the tire, and thereafter machining such a blind hole to a tread block of the tire that the blind hole has a first cross section at a first depth and a second cross section at a second depth, wherein the second cross section is greater than the first cross section and the second depth is greater than the first depth.

Abstract: Provided is a spinal reaming apparatus including a sleeve, an eccentric shaft, an operated element and an eccentric reaming element. The sleeve has a first end and a second end opposing the first end. The eccentric shaft is received in the sleeve. The operated element is connected to the eccentric shaft and positioned proximate to the first end of the sleeve. The eccentric reaming element is connected to the eccentric shaft and disposed at the second end of the sleeve. When rotated, the operated element drives the eccentric reaming element to rotate relative to the sleeve on the eccentric shaft such that the spinal reaming apparatus will switch between a folded mode and a functioning mode.

Abstract: Pipe machining apparatuses, tool supports, and methods of operating pipe machining apparatuses are provided. In one aspect, a pipe machining apparatus includes a frame, a tool carrier coupled to and movable relative to the frame, and a tool support coupled to and movable with the tool carrier relative to the frame. The tool support is adapted to support a tool and move the tool in a first direction toward a pipe at a first increment and move the tool in a second direction away from the pipe at a second increment. The second increment is larger than the first increment.

Abstract: A spindle apparatus according to the present disclosure includes a housing, a spindle rotatably installed in the housing, a tool releasably engaged with one end of the spindle and having an insert tip movable in a radial direction of the tool, a first draw-bar movably mounted in the spindle, and a second draw-bar movably mounted in the first draw-bar. The tool and one end of the first draw-bar are releasably engaged with the one end of the spindle by a movement of the first draw-bar, and the insert tip is configured to move in the radial direction by a movement of the second draw-bar.

Abstract: A bicycle support stand for supporting a bicycle or other similar generally wheeled transportation apparatus or vehicle having substantially linear and separable or retractable portions which are removably secured to a mating tab portion positioned adjacent to or about an axle, or axle skewer, of a bicycle wheel. The support stand is specifically designed to accommodate bicycles having a frame geometry which cannot incorporate a conventional kickstand.

Abstract: Since a tool holder is formed of a structure which is elastically deformed by a centrifugal force produced as the tool holder rotates around a rotation center axis, the rotation radius of a tool with a cutting edge directed to the rotation center axis varies from zero to an arbitrary value. The structure of the tool holder includes two beams elastically deformable to the same degree in opposite directions by the centrifugal force, and centrifugal force components acting on the two beams cancel each other so that a rotation balance is maintained even when the rotational speed of the tool holder is changed.

Abstract: A boring and facing head, rotatively driven by the mandrel of a machine tool, with a turning tool mounted on a mounting slide, which may be controllably driven transversely of the axis (X) of the head body by a threaded shaft (12) operatively connected to a cylinder body (11), integral with a mandrel (4) and rotatably housing a ring gear (17), operatively connected to a gear wheel (19), driven by a controllable motor (8) and wherein the ring gear (17) comprises a circumferential tooth arrangement engaging with a gear wheel (52), integral with the driving shaft (12).

Abstract: A cutting tool setting system contains a tool head for the settable holding of a cutting tool, the head having an adjustment device for the cutting tool. The cutting tool setting system has a setting tool which can be mechanically removably engaged in the tool head at an interface for adjusting the adjustment device in the tool head. The setting tool contains a shaft body having a key part. A key engagement for actuating the adjustment device is designed on the tool head. The key part can be displaced relative to the shaft body in the direction of the longitudinal axis of the body in order to selectively couple and release the key part of the setting tool and the key part at the interface of the tool head.

Abstract: Method for producing a cylinder unit, with the steps: clamping the cylinder (44) to the workpiece clamping device (42) of a lathe (34), skiving the cylinder inner surface (62) of the cylinder (44) by means of a skiving tool (10), in particular by rotating the workpiece clamping device (42) such that a skived cylinder inner surface (62) is formed, smooth rolling the skived cylinder inner surface (62) by means of a smooth rolling tool (60), in particular by rotating the workpiece clamping device (42), and processing at least the front surface (64) of the cylinder unit, wherein the skiving, the smooth roiling and the processing at least of the front surface (64) are carried out in one setting.

Abstract: A device for repairing defects in an internal layer of a structure, for example, an aircraft. The device includes a cylindrical body which rotates around its axial direction, a movement conversion device housed in the cylindrical body and assembled such that it is able to move in the axial direction, a configuration device able to cause the displacement of the conversion device by an axial traveling motion, and a cutting element coupled to the cylindrical body and to the conversion device such that the cutting element is able to be made to rotate by the cylindrical body and to be made to move with a radial displacement by the conversion device between a folded position and a deployed position through an opening defined in the cylindrical body in order to machine the internal layer with a cut which depends on the axial displacement of the conversion device.

Abstract: A die grooving tool for insertion into a pipe having a first die body and a second die body mounted upon a first end of the first die body. Each of the first die body and a second die body have a plurality of openings thereon for receiving a plurality of cutting wheels mounted therein. The first die body is configured to rotate at least partially in a clockwise direction and the second die body is configured to rotate at least partially in a counter clockwise direction, so that the cutting wheels of the first die body and the second die body create a double helix groove on an interior of the pipe, whereby the double helix groove intersects at an intersection point every 360 degrees along an entire length of the pipe.

Abstract: A mechanical-activated inner diameter (ID) grooving tool includes a shank, a body, a stopper, an insert cartridge, a bushing and an end cap. The shank includes a tapered piston having an extension surface and a retraction surface. The insert cartridge includes a tapered piston pocket having a piston-engaging face and a piston-retracting face. Axial movement of the tapered piston in a first direction causes the extension surface of the tapered piston into contact with the piston-engaging face of the insert cartridge, thereby causing the insert cartridge to move in a radially outward direction. Axial movement of the tapered piston in a second, opposite direction causes the retraction surface of the tapered piston into contact with the piston-retracting face of the insert cartridge, thereby causing the insert cartridge to move in a radially inward direction.

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: A method for machining a sealing seat of a shut-off valve in a power generating or industrial plant. An upper valve part and the internal housing fittings are removed from the housing of the shut-off valve to thereby expose a housing opening. A clamping device with a counter-bearing is introduced through the housing opening into the connection pipe and fastened to its inner wall. A machine tool with a bearing is introduced through the housing opening and mounted with its bearing on the counter-bearing. A machining step is carried out with the machine tool on the sealing seat. Then the machine tool is detached and removed through the housing opening. The clamping device is detached from the connection pipe and removed through the housing opening. Then, the upper valve part and the internal fittings are reattached to the housing.

Abstract: In an internal machining apparatus for machining an internal surface of a hollow workpiece, a machining unit holding a cutting blade is configured to be inserted into the hollow workpiece. A pair of unit holding arbors which are capable of non-rotatably holding the machining unit, inserted in the hollow workpiece, at both sides thereof are respectively supported by a work head and a foot stock to advance and retract in an axial direction thereof. A turning mechanism is provided to be supplied with a drive power transmitted through the interior of one of the unit holding arbors for turning the cutting blade held on the machining unit about an axis orthogonal to an axis of the unit holding arbors.

Abstract: The invention relates to a tool head for use in machine tools, comprising a main body which can be rotated around an axis of rotation. The tool head has a slide. The slide can be moved by means of a pull rod axially oriented in the main body. The slide can be fitted with at least one tool or one tool holder. At least one adjustable toothed plate is fixedly arranged on the slide. The toothed plate comprises a helical gearing functioning as a gear means for engaging with a helical gearing of the pull rod which is complementary thereto. According to the invention, the slide has an adjustment unit for moving the at least one toothed plate and the helical gearing thereof into the complementary helical gearing of the pull rod.

Abstract: A method for processing an inner face of a housing having an opening, in particular a housing of a driving mechanism, by means of a machine tool, which has a multiaxially movable tool retainer. A tool retained by the tool retainer is introduced through the opening into the housing, which is stationary relative to the machine tool, and the tool is moved along a circular path and in the direction of the housing in order to process the inner face. In order to create advantageous method conditions, the control head of the tool retainer that accommodates the tool is driven in a rotational manner by means of an angle drive on the tool retainer in order to move the tool independently of the axes of motion of the machine tool along a circular path in order to process the inner face.

Abstract: The invention concerns a tool head with a housing (11), in which at least one thrusting wedge (31, 32, 33) is provided, able to move back and forth in the longitudinal direction (L) in a first toothed guide, which is coordinated with a support (21, 22, 23) in the housing (11), able to move in a second toothed guide in a transverse direction (R1, R2, R3) transversely to the longitudinal direction (L), and the thrusting wedge (31, 32, 33) and the coordinated support (21, 22, 23) are in sliding contact with each other via a slanted contact surface (51, 52, 53) and a movement of the thrusting wedge (31, 32, 33) in the longitudinal direction (L) brings about a transverse movement of the coordinated support (21, 22, 23) via the slanted contact surface (51, 52, 53) and a cutting tool (161, 162, 163) can be fastened on the support (21, 22, 23) and the support (21, 22, 23) has a support arm (101, 102, 103) extending in the transverse direction (R1, R2, R3).

Abstract: A pressure-activated ID grooving tool includes a tool body having a channel, a front cross slide slot, a rear cross slide slot projecting, and two legs extending from a piston bore. A piston is disposed within the piston bore. A slide arm has an extension face and a retraction face. A cross slide has a cross slide pocket with a slide engaging face immediately opposing the extension face of the slide arm and a slide retracting face immediately opposing the retraction face of the slide arm. When fluid within the channel and the piston bore is pressurized, the piston moves toward the plunger, which in turn causes the extension face of the slide arm into contact with slide engaging face of the cross slide to cause the cross slide to move in an outward radial direction, thereby pushing the insert into contact with a workpiece.

Abstract: A method of forming an opening in a layered structure includes providing a layered structure including a first layer and a second layer and a near-zero gap interface defined between the first layer and the second layer; providing an opening through the layered structure such that the opening extends through the first layer and the second layer; and working simultaneously the opening in the fay surface of the first layer and the opening in the fay surface of the second layer without separating the first layer and the second layer. An internal chamfering device is also disclosed.

Abstract: A boring machine including a rotatable boring bar carrying a tool holder that is movable radially of the boring bar, wherein a sensor is provided on the tool holder to sense the proximity thereof to a work piece having a variable radius of curvature in a plane perpendicular to the boring bar.

Abstract: The invention pertains to a method and device for machining a workpiece (2), which rotates about a central axis (1) by means of a tool (3), which contains at least one planar cutting plate (17) arranged in an inclined plane (E) relative to the central axis (1) of the workpiece (2) and is provided with a curved cutting edge (21) directed toward the workpiece (2), wherein the tool (3) is non-rotatably held during the machining, and wherein the workpiece (2) and the tool (3) are displaced relative to one another along two mutually perpendicular axes (X-axis, Y-axis) within a plane (X-Y plane) that lies perpendicular to the central axis (1) of the workpiece (2) such that the point of action between the cutting plate (17) and the workpiece (2) travels along the cutting edge (21).

Abstract: A tool head includes a working slide which can be adjusted relative to a basic body, and an electric adjusting motor which acts on the working slide via gears. The motor includes a stator and a rotor which runs round in the stator, bears an output shaft and is mounted in two pivot bearings arranged at a distance from one another, wherein one of the pivot bearings is arranged with an outer ring in a basic body-mounted stator housing and with an inner ring directly or indirectly on the output shaft.

Abstract: To provide a machine tool not only capable of machining an inner surface of a workpiece into a spherical surface but also capable of machining a bearing surface including a flat surface and machining the combination of a spherical surface and a flat surface, and to provide a workpiece inner surface machining method using the machine tool.

Abstract: The invention is a drilling device for providing a conically shaped cavity in materials primarily used for anchoring systems. The drilling device is comprised of a solid shank for attachment to a drill, a reverse thread section, and a cutting head. The cutting head includes a cutting tip, clean out flutes, extendable cutting blades mounted within an internal chamber of cutting head body, and means for extending the cutting blades. The extendable cutting blades project from the cutting head body radially when the reverse thread section is driven into the internal chamber of the cutting head. The reverse thread section interacts with the means for extending the cutting blades. This may include a pair of cams that are spring biased outwardly. The cams push against the backsides of the extendable cutting blades for driving them from the cutting head body when the drill device is counter rotated.

Abstract: A pressure-activated ID grooving tool includes a tool body having a channel, a front cross slide slot, a rear cross slide slot projecting, and two legs extending from a piston bore. A piston is disposed within the piston bore. A slide arm has an extension face and a retraction face. A cross slide has a cross slide pocket with a slide engaging face immediately opposing the extension face of the slide arm and a slide retracting face immediately opposing the retraction face of the slide arm. When fluid within the channel and the piston bore is pressurized, the piston moves toward the plunger, which in turn causes the extension face of the slide arm into contact with slide engaging face of the cross slide to cause the cross slide to move in an outward radial direction, thereby pushing the insert into contact with a workpiece.

Abstract: A mechanical-activated inner diameter (ID) grooving tool includes a shank, a body, a stopper, an insert cartridge, a bushing and an end cap. The shank includes a tapered piston having an extension surface and a retraction surface. The insert cartridge includes a tapered piston pocket having a piston-engaging face and a piston-retracting face. Axial movement of the tapered piston in a first direction causes the extension surface of the tapered piston into contact with the piston-engaging face of the insert cartridge, thereby causing the insert cartridge to move in a radially outward direction. Axial movement of the tapered piston in a second, opposite direction causes the retraction surface of the tapered piston into contact with the piston-retracting face of the insert cartridge, thereby causing the insert cartridge to move in a radially inward direction.

Abstract: A rotary motion cutting tool having an axis of rotation for cutting at least a portion of the spherical surface on an internal surface of a workpiece includes a rotary slide, a rotary actuator, and an actuating plate with a rotary surface machined therein. The rotary slide is rotatably supported with respect to a rotary axis extending generally perpendicular to the axis of rotation of the rotary motion cutting tool. The rotary actuator is rotatably supported with respect to the rotary slide for rotation about a rotary actuator support axis spaced radially from, and generally parallel with, the rotary axis of the rotary slide. The actuating plate is driven in reciprocal movement along the axis of rotation for interaction with the rotary actuator. Reciprocal movement of the actuating plate translates through the rotary surface and rotary actuator into rotary movement of the rotary slide through an arc about the rotary axis.

Abstract: A methodology and apparatus for cutting shape(s) or profile(s) through well tubular(s), or for completely circumferentially severing through multiple tubulars, including all tubing, pipe, casing, liners, cement, other material encountered in tubular annuli. This rigless apparatus utilizes a computer-controlled, downhole robotic three-axis rotary mill to effectively generate a shape(s) or profile(s) through, or to completely sever in a 360 degree horizontal plane wells with multiple, nested strings of tubulars whether the tubulars are concentrically aligned or eccentrically aligned. This is useful for well abandonment and decommissioning where complete severance is necessitated and explosives are prohibited, or in situations requiring a precise window or other shape to be cut through a single tubular or plurality of tubulars.

Abstract: A lightweight, compact, machine tool for radially machining a surface is provided, where the machine tool includes a cutting head having a cutter movably coupled thereto, and the cutter is further coupled to a control member such that the control member can variably control radial movement of the cutter relative to the cutting head.

Abstract: Embodiments of the present invention provide a boring bar tool including a tool carrier adapted to translate along a boring bar. Adjustable guide members may be coupled with the tool carrier and adapted to contact the boring bar. The guide members may also be adapted to sufficiently support the tool carrier on the boring bar.

Abstract: A cutting tool having a cutting portion located proximate to one end. The cutting tool including a recessed chip flute formed along the shank of the tool away from the cutting edge. The tool includes a chamfering cartridge which is clamped to the tool shank along the chip flute. The chamfering cartridge performs a chamfering or deburring operation while allowing chips from the cutting portion to pass through the flute and away from the tool and workpiece.

Abstract: A drill bit having a body with a stationary cutter and a rotatable cutter such that in a first position the rotatable cutter does not radially extend beyond a periphery of the stationary cutter and in a second position the rotatable cutter radially extends beyond the periphery of the stationary cutter.

Abstract: A tool head includes a working slide which can be adjusted relative to a basic body, and an electric adjusting motor which acts on the working slide via gears. The motor includes a stator and a rotor which runs round in the stator, bears an output shaft and is mounted in two pivot bearings arranged at a distance from one another, wherein one of the pivot bearings is arranged with an outer ring in a basic body-mounted stator housing and with an inner ring directly or indirectly on the output shaft. The stator housing includes a sleeve which engages and is fixed to the stator for rotation and displacement, and a bearing cover which closes off the sleeve on the gear side and bears the outer ring of the first pivot bearing. The second pivot bearing is arranged in a separate centring ring fastened inside the stator.

Abstract: An apparatus for machining a circumferential surface defining a cylindrical bore of a workpiece, the apparatus including a tool holder rotatable about a first rotation axis, and a form roller supported on the tool holder so as to be rotatable about a second rotation axis parallel to a central axis of the cylindrical bore of the workpiece. The form roller has a diameter smaller than a diameter of the cylindrical bore of the workpiece and is adapted for forming a plurality of microscopic recesses on the circumferential surface defining the cylindrical bore of the workpiece.

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 horizontal boring machine tool is described that includes a boring bar equipped with a cutting bit and a counter-bar coupled in head-to-head rotation with the boring bar. This counter-bar is also equipped with a cutting bit, or a series of cutting bits destined to operate simultaneously on the same cylindrical seat to be bored. Both the bit or bits arranged on the bar, and the bit or bits arranged on the counter-bar are radially adjustable via an automatic adjustment system.

Abstract: A drilling device for producing undercut holes. The drilling device includes a drilling tool having an axis of rotation and a cutting portion arranged such that the cutting portion drills a hole with a longitudinal axis that is radially offset with respect to said axis of rotation and a centering device operable to apply a lateral force to said drilling tool for moving said axis of rotation towards said longitudinal axis to cause said cutting portion to form an undercut in a said hole.

Abstract: The invention relates to a deburring tool with a quick change knife, which is formed by at least two parts, namely a guide sleeve having a larger diameter and a center bore, and a base body that can be inserted in the center bore in an axial direction. The base body can be secured in the center bore. A knife groove is arranged on the base body that can receive the knife to be secured, forming a pivot support in the base body. Due to this special support, the knife can be easily exchanged even when the deburring diameters are small, for example, less than 4 mm, while still being able to absorb large deburring forces.

Abstract: A grooving tool includes a spindle rotatable about a longitudinal axis thereof and having at least one coolant inlet port, a ramp portion, and a fluid flow path to the ramp portion; a tool bit moveably coupled to the ramped portion, the tool bit comprising one or more teeth and one or more coolant channels to supply coolant proximate the one or more teeth, the one or more coolant channels operatively connected to the fluid flow path; wherein movement of the tool bit along the ramp portion toward the inlet port causes the one or more teeth to be displaced outward from the longitudinal axis. The fluid flow path may include a longitudinal passage in the spindle disposed generally along the longitudinal axis. The coolant channels may be angled with respect to the teeth and dispense coolant supplied via the fluid flow path toward the teeth.

Abstract: A machining apparatus for machining a workpiece by rotating and revolving either the workpiece or a tool 1 to contact with each other. The machining apparatus comprises rotation/revolution ratio setting motors M1 and M3 for setting a ratio of a number of rotations to a number of revolutions of the workpiece or the tool 1, to a numerical value having a fraction below a decimal point, by changing the number of revolutions. The workpiece is machined by setting the number of revolutions and the number of rotations at the ratio.

Abstract: The combination tool comprises a base body (16) with several reaming blades (18), with a chamfer (20) and a guide surface (22), arranged around the circumference of the base body, for reaming a cylinder bore and with at least one grooving blade (26), arranged axially offset from the reaming blades (18) and which may be extended radially relative to the base body (16). According to the invention, the combination tool is provided with two guide strips (30), arranged in the base body, at an angle to each other, between two reaming blades (18) which are adjacent in the circumferential direction and displaced axially relative to the above in the direction of the grooving blade (26).

Abstract: A method and apparatus for forming an undercut hole. The apparatus includes a shaping means attached to a shaft for causing the shaping means to rotate. The shaping means is forced into an initial hole in a piece of material. The rotation of the shaping means causes an undercut hole to be formed at the location of the distal end of the initial hole.

Abstract: A method of generating holes in fiber-reinforced metal laminate material is provided, including creating a first bore 18 by passing a cutting element 16 from a first side 24 of the fiber-reinforced metal laminate material 10 to a second side 26, the first bore 18 including first bore sidewalls 19 at least a portion of which includes a taper 28 having a taper diameter 33 and a taper depth 32; passing the cutting element 16 through the first bore 18; moving the cutting element 16 outward of the taper diameter 33; and retracting the cutting element 16 through the first bore 18 to create a second bore 34 having straight second bore sidewalls 36.

Abstract: In a method for producing workpieces having inner and/or outer contours deviating from a circular shape, at least one workpiece is clamped on a machine and the workpiece is driven in rotation about a rotational axis of the workpiece at a first constant velocity. At least one tool is arranged on a carriage that is moveable radially to the rotational axis of the workpiece as well as axially in the longitudinal direction of the rotational axis of the workpiece. The tool is rotatably driven about a rotational axis of the tool that deviates from the rotational axis of the workpiece such that an active cutting surface of the tool moves on a circular path at a second constant velocity. The second constant velocity is selected such that its revolutions per minute deviate from the revolutions per minute of the first constant velocity with respect to size and/or rotational direction.

Abstract: A hand tool apparatus uses a cutting tool with a first width and a tool axis to machine a hole in an object. The hole has a second width at least as large as the first width of the cutting tool. The apparatus includes a housing, a spindle unit in the housing for rotating the cutting tool and an orbital drive for rotating the spindle unit. An axial feed mechanism moves the orbital drive and the spindle unit jointly either toward or away from the object being machined.

Abstract: In a complex tool to be installed on a machine tool capable of turning machining and milling machining operations, a main body is provided, and carries inserts for turning machining, inserts for milling machining and inserts for drilling machining. Turning machining and drilling/milling machining operations can be executed using the inserts installed on the main body, without the need for tool exchange, saving time and labor. The inserts as installed have opposite rotational cutting directions, and are placed on opposite sides of concavities that extend radially inwardly and axially back from the end of the main body. The inserts can be placed at the same or different cutting distances and can be brought into engagement with the workpiece by selection of the relative orientations of the rotation axis and the workpiece.

Abstract: A turning lathe for interior cutting of hollow work pieces using a boring rod onto which a tool holder device is fitted and on which there is a mechanism for holding a work piece in such a way that it encloses at least part of the boring rod characterized by the fact that the boring rod is gripped and held in place at both ends and by the fact that the tool holder device is fitted onto the boring rod in such a way that it is movable.

Abstract: The invention relates to a tool holder for use in machine tools, comprising a main body, which can rotate about an axis of rotation, and cutter holders which each hold a cutting plate and can be radially adjusted by means of an axially displaceable control rod and coupling means. In order to further develop said tool holder so that it is possible, within a very short time, to produce a turned groove which satisfies stringent demands regarding surface quality and geometric roundness, it is proposed, according to the invention, that the tool holder has at least two cutter holders which can be radially adjusted between a retracted position and an extended position and whose cutters can be simultaneously brought into engagement with the workpiece in order to produce a turned groove.