Abstract: A deburring device includes a cylindrical body with a receptacle for receiving a pipe. The cylindrical body includes an abrasive surface provided in the receptacle, which is configured to simultaneously deburr at least two surfaces of a pipe inserted into the receptacle.

Abstract: Disclosures include a method for manufacturing a ball member usable in a flow control valve. The method comprises connecting a workpiece to a rotating apparatus along an axis of rotation of the workpiece, simultaneously rotating the workpiece about the axis of rotation and moving a rotating cutting tool toward the axis of rotation along a second axis to form a first curved surface having a progressively shorter radius with respect to the axis of rotation, wherein the second axis is generally oriented perpendicular to the axis of rotation, and cutting a bore through the workpiece, wherein one end of the bore extends through the first surface and the other end of the bore extends through the second surface.

Abstract: A laser polishing method for a metal face seal is provided. The method includes determining, using a processor, a first smoothness level of a seal face surface of the metal face seal. The method includes applying, using the processor, a laser beam at a first angle to at least one peak on the seal face surface of the metal face seal, the first angle measured relative to a normal to the seal face surface. The method includes determining, using the processor, a second smoothness level of the seal face surface. The method includes controlling, using the processor, the laser beam until the second smoothness level is equal to a threshold smoothness level. The method includes turning off the laser beam, using the processor, when the second smoothness level is equal to the threshold smoothness level isotropically over the seal face surface.

Abstract: The working head moving device adopted in the working apparatus for machining workpiece supported by the work setting section having the underside-abutting portion and the side-abutting portion can maintain proper machining conditions with adaptability to decrease in size of workpiece entailed by proceeding of machining, can perform machining on workpiece with high uniformity and precision, and can move the working head without causing damage to workpiece. There is provided the head moving system for moving the working head between the working-state position and the retracted-state position, and the head moving system has the trunnion support portion which allows the working head to rock about its oscillation axis perpendicular to the rotation axis of the rotary tool when the working head is pressed against workpiece in conformity with decrease of workpiece size entailed by proceeding of machining, thereby maintaining the angle of intersection of workpiece-contacted surface and the rotation axis invariant.

Abstract: The invention relates to a device (10) for the at least partial removal of the outside circumferential surface of a pipe consisting of plastic, comprising a hollow cylindrical housing (12), with a wall that surrounds a cylindrical interior space that accommodates the body in an axially moveable manner, at least one opening in the wall as well as a cutting element (74) that is associated with the opening (62) and with its cutting section projects into the interior space. To be able to remove the outside circumferential surface of the pipe in an unproblematic manner and to the desired degree, it is suggested that the cutting element (74) in a front view exhibit a disc or ring geometry and be connected to the housing (12) by a fastening element that extends in the direction of the longitudinal axis of the cutting element, whereby the cutting element can be connected to the housing in the desired position by rotating it about its longitudinal axis.

Abstract: A material-removing machine for removing material from a cone section of a medical balloon includes a material-removing element operatively connected to a prime mover such that operation of the prime mover imparts rotation to the material-removing element about a rotational axis. The material-removing element includes an interior surface defining a generally conical-shaped cavity extending along the rotational axis and adapted to receive at least a longitudinal portion of a cone section of an expanded medical balloon for removing material from the longitudinal portion of the cone section to reduce a wall thickness of the cone section. Material may be removed continuously around a 360-degree exterior perimeter of the longitudinal portion of the cone section of the medical balloon to reduce the thickness of the balloon wall defining the cone section.

Abstract: In one embodiment, a disposable surgical rode deburrer has a shank configured to be rotated by a drive device and a housing assembly coupled to the shank. The housing assembly includes a rod guide having an opening sized to receive and stabilize a surgical rod when inserted therethrough into an inner cavity. The housing assembly also includes a cutting bit disposed within the inner cavity that is rotated to deburr an end of the surgical rod. A membrane wiper is disposed between the rod guide and the cutting bit. The membrane wiper has a seal that opens to allow the surgical rod to be inserted therethrough, and substantially closes when the surgical rod is removed. The housing assembly also includes a drive body. The membrane wiper retains within the inner cavity chips, particles or dust created by the cutting bit.

Abstract: A tool spindle for a honing machine includes a bowl-shaped holder having a circumferential peripheral wall connected to a bottom part. The bowl-shaped holder is configured to hold a honing ring on an inside of the bowl-shaped holder. At least one expansion element is formed on the inside of the bowl-shaped holder along an inner surface of the circumferential peripheral wall. The at least one expansion element radially clamps and centers the honing ring inside the bowl-shaped holder. A hydraulic chamber is disposed in the bottom part of the bowl-shaped holder. At least one hydraulic line is connecting in fluid communication the at least one expansion element and the hydraulic chamber. A single adjustment element is movable in relation to the bottom part of the bowl-shaped holder, where the single adjustment element is in fluid communication with the hydraulic chamber.

Abstract: The adhesiveness of a thermal spray coating and a cylinder internal surface is improved by forming a sufficient roughened surface on an internal surface. A processing roller is installed on the main shaft of a processing device via a pressurizing mechanism. An uneven surface is provided on the external periphery of the processing roller. By pressing the processing roller against the internal surface while the roller rotates and moves, a fine unevenness that corresponds to the unevenness of the roller is formed on the cylinder internal surface. A thermal spray coating is formed on the internal surface where the inner surface has been roughened by forming the above-mentioned unevenness.

Abstract: A blade sharpening system using the interior surface of a grinding wheel against which a blade is drawn along its entire length for sharpening. The sharpening system includes a blade holding configuration having multiple hinged arms. A cam operating between two of the hinged arms serves to alter the angle of incidence between the blade and the grinding wheel as the blade is drawn across the grinding wheel. The result is that a wide variety of different blade configurations can be easily accommodated by the sharpening system.

Abstract: A coating film peeling apparatus for resin material includes: a peeling cylinder, a peeling roll installed therein with a space for a peeling process along an inner wall of the peeling cylinder, a resistance lid disposed to block a discharge port of the peeling cylinder, and a pressure adjustment part for adjusting an outflow rate and internal pressure of the peeling cylinder. The peeling cylinder is constituted by a polygonal-shaped angular columnar body having, as coating film pass-through holes, rows K of small holes and rows L of small holes and projection rings (angular embossments) provided alternately in multiple rows along a direction perpendicular to a rotating direction of the peeling roll.

Abstract: A carbon electrode grinding apparatus for shaping a front end of an arc discharge carbon electrode is provided with front end grinding blades configured to grind a front end surface of the carbon electrode, lateral surface grinding blades configured to grind a surface from the front end surface to a base end of the carbon electrode, and rotation means configured to rotate and drive the front end grinding blades and the lateral surface grinding blades around a rotation axis line coincident with an axis line of the carbon electrode.

Abstract: A grinder with built-in grinding agent dispenser includes a driving shank having an adapter end for operatively coupling with a grinder machine for being driven to rotate, a grinding shaft operatively coupling with the driving shank for being driven to rotate, an abrasive arrangement provided at the grinding shaft for refining a surface of a workpiece, and a grinding agent dispenser built-in within the grinder for guiding a flow of grinding agent. The dispenser has a supplying channel connected to a supplying inlet, and a grinding channel connected to a dispensing outlet and communicatively connected to the supplying channel, wherein the supplying channel and the grinding channel are provided within the driving shank and the grinding shaft, so that when the grinding agent is feeding into the supplying channel via the supplying inlet, the grinding agent is guided to flow to the dispensing outlet, so as to disperse grinding agent.

Abstract: Disclosed is a method for grinding a machine part that is used as a drive shaft, for example, rotates about the longitudinal axis thereof during the grinding process, and is provided with a journal at one axial end thereof and a recess at the opposite end thereof. The grinding process is carried out in one and the same grinding machine. In said grinding method, the machine part is brought into different clamped states by means of a chuck of a workpiece spindle head with releasable clamping jaws and a centering tip, a backrest, and/or a tailstock quill. Changing the clamped states has the advantage that the machine part remains in the same position in a single grinding machine, i.e. the clamped position, in all the different clamped states such that more accurate sizes, shapes, and positions can be obtained in an economical manner and all areas of the machine part which are to be ground are successively accessible to the grinding disks.

Abstract: There is provided a method of polishing the inner peripheral end surfaces of disk-like substrates for a recording medium using a brush comprising, providing a plurality of pieces of disk-like substrates having circular holes at the central portion thereof; bringing a polishing material slurry containing a polishing material into contact with the object to be polished; inserting a polishing brush into the circular hole of the object from a first side of the object to be polished, and rotating the polishing brush with the shaft as a center to polish the inner peripheral end surfaces of the substrates; and inserting the polishing brush into the circular hole of the object to be polished from a second side opposite to the first side and rotating the polishing brush with the shaft as a center axis to polish the inner peripheral end surfaces of the substrates.

Abstract: A multi-functional grinding apparatus includes a fixed barrel, a moving barrel, a cutting device, a grinding plate, and an actuator. The fixed barrel defines a chamber therein and includes a number of inner side surfaces, the inner side surfaces are substantially parallel to a central axis of the fixed barrel. Each of the inner side surfaces defines a holding groove therein for holding a workpiece. The moving barrel is received in the chamber and includes a first side surface and a second side surface, the first side surface and second side surface are substantially parallel to the central axis. The cutting device is fixed on the first side surface. The grinding plate is fixed on the second side surface. The actuator is configured for driving the moving barrel to move towards a workpiece, and rotating the moving barrel.

Abstract: A method for honing a workpiece by passing a workpiece through a hone tool having a plurality of abrasive surfaces configured to remove a portion of all exterior machining surfaces of the workpiece as it is passed through the hone tool, the exterior machining surfaces being non-uniform and wherein the hone tool is configured to hone all of the exterior machining surfaces simultaneously as workpiece is passed through the hone tool. An assembly for honing a workpiece, the assembly having a plurality of hone tools each having abrasive surfaces configured to remove a portion of exterior non-uniform surfaces of a workpiece pushed through the hone tool, wherein the hone tool is configured to surround the entire periphery of the workpiece being passed therethrough.

Abstract: A carriage arrangement for a machine tool, which can be adjusted similar to a compound slide, has an increased rigidity against a machining force being taken up by said arrangement in that according to the invention a first carriage (1) can be adjusted relative to a machine base (4) along a first trajectory that is tilted toward the direction of force, and a second carriage loaded with the machining force can be adjusted at the first carriage along a second trajectory that is orthogonal to the direction of force (FIG. 1).

Abstract: A grindstone contact sensing technology capable of sensing the contact position of the honing grindstone with the inner circumference of the work at high precision. A servo motor for driving the spindle rotation, and a servo motor for driving the depth of cut are provided and used respectively as spindle rotation drive source for rotating and driving the rotary spindle having the honing tool and depth-of-cut drive source for moving the honing grindstone at a specified depth of cut, and the contact position of the honing grindstone with the inner circumference of the work is sensed from various electrical information (rotating speed, torque, current value, stagnant pulses, etc.) obtained from the operations of both the servo motors.

Abstract: A chamfering apparatus is used to chamfer a peripheral edge of a glass substrate. The chamfering apparatus includes a grindstone having a cylindrical hollow end portion; a grindstone driving unit that rotates the grindstone around an axis of the cylindrical hollow end portion; a substrate rotation-driving unit that rotates the glass substrate around either one of an axis of the outer periphery and an axis of the center circular hole; and a pressing unit that presses the grindstone to the glass substrate such that an annular end surface of the grindstone contacts with an edge of either one of the outer periphery and the inner periphery of the glass substrate while the cylindrical hollow end portion of the grindstone faces with one of the outer periphery and the inner periphery of the glass substrate.

Abstract: A method for dressing a pair of weld gun tips on a weld gun controlled by a robot is disclosed. The method comprises the steps of: placing an alignment tool in a mounting head of a tip dresser tool, with the alignment tool including a central alignment bore having a diameter corresponding in size to a diameter of the pair of weld gun tips; teaching a robot path to cause the pair of weld gun tips to slide into the central alignment bore while the alignment tool is mounted in the mounting head; removing the alignment tool from the mounting head; inserting a cutter head into the mounting head; using the taught robot path to bring the pair of weld gun tips into contact with the cutter head; and dressing the weld gun tips with the cutter head.

Abstract: A chamfering apparatus is used to chamfer a peripheral edge of a glass substrate. The chamfering apparatus includes a grindstone having a cylindrical hollow end portion; a grindstone driving unit that rotates the grindstone around an axis of the cylindrical hollow end portion; a substrate rotation-driving unit that rotates the glass substrate around either one of an axis of the outer periphery and an axis of the center circular hole; and a pressing unit that presses the grindstone to the glass substrate such that an annular end surface of the grindstone contacts with an edge of either one of the outer periphery and the inner periphery of the glass substrate while the cylindrical hollow end portion of the grindstone faces with one of the outer periphery and the inner periphery of the glass substrate.

Abstract: A chamfering apparatus is used to chamfer a peripheral edge of a glass substrate. The chamfering apparatus includes a grindstone having a cylindrical hollow end portion; a grindstone driving unit that rotates the grindstone around an axis of the cylindrical hollow end portion; a substrate rotation-driving unit that rotates the glass substrate around either one of an axis of the outer periphery and an axis of the center circular hole; and a pressing unit that presses the grindstone to the glass substrate such that an annular end surface of the grindstone contacts with an edge of either one of the outer periphery and the inner periphery of the glass substrate while the cylindrical hollow end portion of the grindstone faces with one of the outer periphery and the inner periphery of the glass substrate.

Abstract: A carbon electrode grinding apparatus for shaping a front end of an arc discharge carbon electrode is provided with front end grinding blades configured to grind a front end surface of the carbon electrode, lateral surface grinding blades configured to grind a surface from the front end surface to a base end of the carbon electrode, and rotation means configured to rotate and drive the front end grinding blades and the lateral surface grinding blades around a rotation axis line coincident with an axis line of the carbon electrode.

Abstract: A bore honing device comprising a support assembly including first and second end support elements connected by a base support which supports an axial guide track. A trolley engaging with the guide track and the trolley being movable along the guide track for guide movement of a bore honing tool supported by the trolley. At least one adjustable guide is provided for limiting travel of the trolley along the guide track. A weight compensation mechanism is connected between the trolley and a desired end wall of the support assembly for exerting a force on the support assembly when a bore honing device is vertically oriented to compensate for the weight of the drive motor, the trolley and the honing tool.

Abstract: A honing installation for honing workpieces comprises a plurality of work stations, each work station being configured for performing at least one working step on a workpiece and at least part of the work station is set up as a honing station for performing at least one honing operation on a workpiece. The honing installation also comprises a conveyor system for conveying workpieces to and from work stations. There is also a control device for controlling the honing installation. Each of the work stations is directly connected to the conveyor system. This configuration allows a flexible control of the honing process.

Abstract: An orbiting polishing tool for at least one of polishing and material removal. The orbiting polishing tool may include a housing of a housing assembly rotatable about a first axis. The orbiting polishing tool may also include at least one abrasive wheel rotatable about a second axis, the at least one abrasive wheel configured to remove material from an inner surface of an object, wherein the second axis extends through the housing.

Abstract: The present invention relates to a modified radial motion method for modifying lengthwise curvature of face-milling spiral bevel and hypoid gears, which is capable of modifying a locus of a cutter center into a curve, without changing a head cutter's geometry, by providing modified radial motion of the head cutter cooperating with rotation of a cradle. The modified radial motion method in accordance with the present invention completely solves the contradictions caused by the existing lengthwise curvature modification methods, which is able to increase the adjustability of the gear set without reducing the tooth contact.

Abstract: The circumferential edges of glass or ceramic disks used in disk drive data storage devices are preferably finished by ductile grinding to produce an essentially fracture-free surface, which is not chemically strengthened. Preferably, the material is glass, and both the inner and outer edges of the disk are finished. Edge finishing is preferably achieved in a two-stage process, involving a coarse grind and a ductile grind, using air bearing spindles rotated at high speed for grinding wheels and workpiece. Preferably, the grinding wheels are shaped to provide a radius at the juncture of the circumferential edges and flat disk surfaces.

Abstract: The circumferential edges of glass or ceramic disks used in disk drive data storage devices are preferably finished by ductile grinding to produce an essentially fracture-free surface, which is not chemically strengthened. Preferably, the material is glass, and both the inner and outer edges of the disk are finished. Edge finishing is preferably achieved in a two-stage process, involving a coarse grind and a ductile grind, using air bearing spindles rotated at high speed for grinding wheels and workpiece. Preferably, the grinding wheels are shaped to provide a radius at the juncture of the circumferential edges and flat disk surfaces.

Abstract: An appliqué film and paint removal tool includes a central rotating shaft, a spring-loaded locator pin, at least three freely rotating bearings, an arbor, and a collar. The rotating shaft may be centered with the locator pin and pushed down until the bearings touch the surface from which the appliqué or paint material is to be removed. By rotating while touching the mold line contour of the fastener the bearings will cause the appliqué film or paint treatment to separate around the mold line of the fastener. The separated material than can be peeled off and the fastener is accessible. Therefore, the appliqué film or paint treatment can be removed from fasteners without damaging the surface around the fastener. The appliqué film and paint treatment removal tool may be designed to accommodate all fastener diameters and mold line contours.

Abstract: The tool comprises a tool wheel (5) which is mounted on a holding arm (4) and has a tool-wheel parent body (6) having a machining body (7) arranged at the outer margin. In one embodiment variant, this machining body is designed as an abrasive body. A base body for accommodating the bearing arrangement is designed in one piece with the holding arm (4), which also has the supply lines (8) for the hydrodynamic bearing arrangement and the hydraulic drive. A tool-centering interface (11) permits the presetting of the tools outside the machine tool.

Abstract: A grinding pin (53) for grinding notches in the edges of disc workpieces, such as semi-conductor wafers, comprises a metal spindle (132) for mounting in a grinding machine, and an adjoining cylindrical region having axially spaced sections of fine grit (160) and rough grit (162), the latter being axially nearer the spindle (132). In use on a grinding machine having a rotatable forming wheel, similar profiled notch-grinding grooves (140) and (142) are formed by the wheel in the grinding sections (162) and (160) respectively.

Abstract: A processing apparatus capable of grinding an arcuate groove (a groove having an arcuate shape in section) of various shapes defined in a work with a good accuracy. A pseudo-elliptic arcuate groove defined in a work is ground by a forming grindstone. The work is moved in a Y-axis direction (vertically on a paper sheet) in a state in which the forming grindstone is supported on a tool table for rotation and is moved in a X-axis direction (a direction perpendicular to the paper sheet) to abut against the arcuate groove, while rotating the work in a direction of an arrow with its axis L matched with an axis C of an indexer. Thus, it is possible to relatively move the forming grindstone to trace the arcuate groove, thereby accurately grinding the arcuate groove.

Abstract: A honing tool assembly adapted to be chucked in a honing machine for reciprocation and rotation, the assembly comprising a diamond-plated tool for honing cylindrical bores in a workpiece, the diamond-plated tool having a spiral pattern on a cylindrical outer surface, a central bore in the tool adapted to receive a tapered rod engageable with a tapered surface on the central tool opening, the tool being provided with a longitudinal slot that allows the outside diameter of the tool to expand as a force is applied to the tapered rod whereby stock is removed from bore walls of the workpiece with precision roundness and concentricity.

Abstract: A honing tool assembly adapted to be chucked in a honing machine for reciprocation and rotation, the assembly comprising a diamond-plated tool for honing cylindrical bores in a workpiece, the diamond-plated tool having a spiral pattern on a cylindrical outer surface, a central bore in the tool adapted to receive a tapered rod engageable with a tapered surface on the central tool opening, the tool being provided with a longitudinal slot that allows the outside diameter of the tool to expand as a force is applied to the tapered rod whereby stock is removed from bore walls of the workpiece with precision roundness and concentricity.

Abstract: A gear grinding machine and a gear grinding method, in which a gear-shaped grinding stone is caused to engage a gear-like workpiece and one of the gear-shaped grinding stone and the gear-like workpiece is reciprocated relatively to the other in axial direction thereby to grind the tooth flanks of the workpiece, are disclosed. The rotational resistance is applied by a brake unit to the rotationally driven side. The grinding resistance and the rotational resistance interfering with the relative reciprocal motion are detected by torque sensors and input to a control unit, the average value of each of the signals is compared with a reference value by an arithmetic unit and, in the case where there is a difference between the average value and the reference value, the rotational resistance is changed by activating the brake unit. Thus, a high machining accuracy can be maintained even when the sharpness of the grinding stone is reduced.

Abstract: A reamer with adjustable expansion/contraction and a bore finishing machine comprising the reamer. The reamer has a rotation shaft that is externally operable and a grinding section. The grinding section is cylindrically shaped, and has a plurality of axially-extending slits in its peripheral wall and a tapered inner surface. The rotation shaft is connected via threaded sections to a sliding shaft, which is in turn connected to a diameter expansion member consisting of a tapered cone fitted into the tapered inner surface of the grinding section. When the rotation shaft is operated to rotate, the rotational motion is converted into linear motion of the slide shaft due to a guide pin and a guide hole. The linear motion moves the diameter expansion member back and forth inside the grinding section, thereby contracting/expanding the outer diameter of the grinding section mechanically and precisely. The bore finishing machine has a hollow main rotation spindle, and a rotation spindle inside the same.

Abstract: A grinding apparatus uses an inner diameter grinding wheel (4) to grind a doughnut-shaped workpiece (12), and comprising: an axle support cylinder (5) for support a sleeve-shaped grinding wheel axle (6), mounted on which is the grinding wheel (4) having annular grinding grooves (13) in its inner peripheral surface. The axle (6) is rotatably mounted in the cylinder (5) to vertically pass therethrough and has an upper surface on which the grinding wheel (4) is fixedly mounted; a means for rotatably driving the axle (6); and, a workpiece axle support sleeve (18) provided with a lower workpiece clamp (20) in its upper end, to which the workpiece (12) is attracted by the suction. The sleeve (18) is freely passed through the axle (6). The cylinder (5) and/or the sleeve (18) are capable of moving vertically and horizontally. The apparatus is improved in grinding efficiency to reduce grinding costs.

Abstract: Machine for machining an envelope surface of a cylindrical work piece includes a tubular cylindrical housing with a longitudinal axis and having an inner space extending from a first end of the housing, and with an axis offset from the housing axis, a shaft angularly displaceable in the inner space and provided with a recess, and a motor in the recess. A spindle is coupled to the motor and carries a first rotatable tool, a rotatable outer casing encloses the housing, and a lid is arranged for co-rotation with the casing and extends radially over the first end of housing with the lid having a central through opening with the peripheral surface. A second rotated tool is disposed on the peripheral surface, and a support device is adapted to hold the work piece between the tools. The shaft is arranged to cause the first tool to effect radial displacement relative to the second rotated tool.

Abstract: Device for mechanically cleaning wire rod for profiled metal wires, comprising at least one press (3) with gripping jaws (4a, 4b) rotating about the wire rod (2) and supporting an abrasive material (5), such as steel wool for example, arranged in one or more layers around the wire rod (2), pressed against it by the jaws (4a, 4b) and retained by the latter so as to prevent it being drawn along; operating members (6a, 6b) consisting of floating plates (8) joined together in an ordered manner in pairs so that each pair interacts autonomously with the abrasive material (5); means (7) for actuating the operating members (6a, 6b), able to modify the opening of the jaws (4a, 4b); means (10) for synchronizing the relative sliding movement of the plates (8) of each pair in the transverse direction with respect to the rod (2) and able to cause identical displacements of the said plates (8) in opposite directions.

Abstract: A machine for machining a flange on a work piece comprises a rotated tool, chucking equipment and feeding means for relative displacement between work piece and tool, a tubular cylindrical housing with longitudinal axis and an inner space, with an axis offset from the housing axis; a shaft with a recess in the inner space for angular displacement therein, a motor in the recess, a spindle coupled to the motor extending along the housing axis and cooperating with the chucking opening, the tool comprising a peripheral abrasive material at the central through opening, which extends axially beyond at least one of the lid surfaces, the shaft arranged in inner space for causing work piece to approach and contact the abrasive material at angular displacement of the shaft.

Abstract: A honing tool has a large-diameter portion thereof provided with a plurality of stone holding recesses arranged radially from the inner bore to the outer edge for slidably holding grinding stones. Each stone holding recess is arranged to form an upper guiding facet and a lower guiding facet at the top side and the bottom side thereof, respectively as well as a couple of side guiding facets at both sides thereof. Also, each grinding stone has an upper sliding facet and a lower sliding facet provided at the top side and the bottom side thereof, respectively for sliding directly on the upper guiding facet and the lower guiding facet. Both sides of the grinding stone are side sliding facets for running directly on the side guiding facets. Moreover, the grinding stone has a tapered facet provided on an upper end thereof at the inner bore side for receiving a pressing force of a tapered rod.

Abstract: Machine (10) for machining an envelope, surface of a cylindrical work piece (28) including a tubular cylindrical housing (13) with longitudinal axis and having an inner space (14) extending from a first end of the housing, and with an axis offset from the housing axis; a shaft angularly displaceable in said said inner space (14) and provided with a recess, a motor (25) in said recess; a spindle (26) coupled to said motor and carrying a first rotatable tool (28), a rotatable outer casing (15) enclosing said housing, a lid (30) arranged for co-rotation with casing and extending radially over said first end of housing with said lid having a central through opening (31) with peripheral surface (32), a second rotated tool (33) disposed on said peripheral surface (32), and support means (35) for holding said work piece between the tools, said shaft being arranged to cause said first tool to effect radial displacement relative to said second rotated tool (33).

Abstract: The present invention concerns a finishing center for molded, die-cast, or machined parts. This finishing center (10) comprises a frame (11), at least one finishing unit (12) with rotating finishing devices (18), at least one unit (13) which receives the parts to be treated, and a drive means (19) which displaces the finishing devices in order selectively to place the surfaces of the parts to be treated in contact with the finishing devices for a predetermined length of time. The finishing unit (12) is attached to the floor of the frame. It can move in translation along three axes (x, y, z) and it can rotate on an axle (A). The unit (13) for receiving parts to be treated comprises a plate (25) turning about a vertical axle and two support elements (26) for displacing the parts to be treated along two orthogonal axes of ratation (B, C).

Abstract: A honing tool has a large-diameter portion thereof provided with a plurality of stone holding recesses arranged radially from the inner bore to the outer edge for slidably holding grinding stones. Each stone holding recess is arranged to form an upper guiding facet and a lower guiding facet at the top side and the bottom side thereof, respectively as well as a couple of side guiding facets at both sides thereof. Also, each grinding stone has an upper sliding facet and a lower sliding facet provided at the top side and the bottom side thereof, respectively for sliding directly on the upper guiding facet and the lower guiding facet. Both sides of the grinding stone are side sliding facets for running directly on the side guiding facets. Moreover, the grinding stone has a tapered facet provided on an upper end thereof at the inner bore side for receiving a pressing force of a tapered rod.

Abstract: An machine (10) for machining a flange on a work piece (28) comprises a rotated tool (35), chucking equipment (27) and feeding means (20, 21) for relative displacement between work piece and tool, a tubular cylindrical housing (13) with longitudinal axis and an inner space (14), with an axis offset from the housing axis; a shaft with a recess insaid inner space (14) for angular displacement therein, a motor (25) in said recess; a spindle (26) coupled to said motor extending along said housing axis and cooperating with said chucking equipment; a rotatable outer casing (15) enclosing said housing, and a lid member (30) connected to casing and having a central through opening (31), said tool cmprising a peripheral abrasive material at the central through opening, which extends axially beyond at least one of the lid surfaces, the shaft (17) arranged in inner space (14) for causing work piece to approach and contact said abrasive material at angular displacement of the shaft.

Abstract: An internal abrasive machine abrades material from an inner surface of a workpiece. The machine includes a casing rotated about a first axis, with a workpiece rotated therewith about the first axis. A housing is disposed coaxially inside of the casing, and a shaft is mounted eccentrically in the housing. The casing and housing are angularly movable relative to one another. A drivable spindle is mounted in the shaft, the spindle carrying an abrasive tool. The spindle is offset eccentrically with respect to the first axis and carries an abrasive tool disposed inside the workpiece. A motor is provided to produce relative angular movement between the housing and the shaft to displace the spindle laterally with respect to the first axis and into contact with the inner surface of the workpiece.

Abstract: For producing hectically profiled workpieces (1) the helical profile (2) is first of all prefabricated by a milling treatment and is then finished by a grinding treatment of the profile surface. To achieve optimum machining qualities in an economic way, the grinding treatment is performed with a grinding tool (6, 12) adapted to the milling tool (3, 9) for the milling treatment in terms of shape, size, position of the axis of rotation and cutter arrangement.

Abstract: A grinding apparatus uses an inner diameter grinding wheel (4) to grind a doughnut-shaped workpiece (12), and comprising: an axle support cylinder (5) for support a sleeve-shaped grinding wheel axle (6), mounted on which is the grinding wheel (4) having annular grinding grooves (13) in its inner peripheral surface. The axle (6) is rotatably mounted in the cylinder (5) to vertically pass therethrough and has an upper surface on which the grinding wheel (4) is fixedly mounted; a means for rotatably driving the axle (6); and, a workpiece axle support sleeve (18) provided with a lower workpiece clamp (20) in its upper end, to which the workpiece (12) is attracted by the suction. The sleeve (18) is freely passed through the axle (6). The cylinder (5) and/or the sleeve (18) are capable of moving vertically and horizontally. The apparatus is improved in grinding efficiency to reduce grinding costs.