Abstract: A counterweight mechanism for a swivel arrangement includes first and second counterweights each including a seat, an axle, and two cylinders. The swivel arrangement has one end adjacent to the axle. The axle is rotatably, partially disposed in the seat. Each cylinder has a first end pivotably secured to a position proximate to the axle and a second end pivotably secured to the seat.

Abstract: Gear processing machine (4), such as a gear cutting or grinding machine, wherein a chamfering and/or deburring apparatus (2) and auxiliary spindle (10) are included on the same machine. A transfer mechanism (8) loads, unloads and transfers workpieces between a machining spindle (6) and the auxiliary spindle (10) thereby enabling simultaneous cutting and chamfering and/or deburring processes to be carried out. Via the auxiliary spindle, completed workpieces may be removed from the machine and blank workpieces may be loaded into the machine while another gear is being processed on the machine spindle thereby enhancing machine output and creating a more efficient operation.

Abstract: A vertical turning-milling complex machining center comprises a horizontally-arranged bed body (6) and a vertically-arranged column (7). The bed body (6) is provided with an X-axis lateral supporting linear track (2) and an X-axis guide screw (5). The bed body (6) is also provided with a uniaxial rotating table (1) which can reciprocate and is driven directly by a first external rotor torque motor. The column (7) is vertically provided with a Z-axis lateral supporting linear track (10), a Z-axis guide screw (9) and a crossbeam (11) that reciprocates up and down. The crossbeam (11) is provided with a transverse Y-axis linear track (13), a Y-axis guide screw (12) and a single-pendulum milling head seat frame that can reciprocate along the Y-axis guide screw (12). The single-pendulum milling head is driven directly by a second external rotor torque motor.

Abstract: In the course of a machining of a workpiece with a tool, a drive spindle with a tilt table secured thereto of a tilt device provided on a work table of a machining center is rotated by a direct drive motor to control the relative angular position between the tool and the workpiece, and within a predetermined period of time in the course of a machining, the direct drive motor is rotated at a high speed with a spindle head and the work table of the machining center kept away to rotate the drive spindle and hence, the tilt table at a high speed, so that chips and cutting lubricant can be shaken from the workpiece and the tilt table.

Abstract: Disclosed is a machining device, particularly for producing tooth replacement parts or models thereof, comprising a workpiece holder and at least one machining tool which is disposed in a machining space for a workpiece that is mounted therein. The feeding axis for the workpiece into the machining space extends at an angle relative to the horizontal.

Abstract: A machining center wherein improved workability of a control board, a widened movable zone of a column and a reduced installation space are achieved. The machining center includes a column movably supported on a column sliding portion in an X-axis direction, a work table movably supported on a table sliding portion in a Z-axis direction, a main spindle head slidably supported on the column in a Y-axis direction, and an automatic tool changer disposed at an inner side of the column sliding portion. The control board is arranged at an opposite side of the automatic tool changer and is provided in parallel with a side surface of a front portion of a table sliding portion and is arranged side by side with an openable/closable door for an operator provided on a side surface of a cover in a vicinity of a rear end portion of the side surface of the table sliding portion.

Abstract: A piston pin hole boring system and method of forming pin holes therewith includes fixing a piston to a fixture supported by a slide member. Then, rotating a cutting member about a first axis and moving the slide member with the fixture thereon toward the cutting member along the first axis and bringing the piston into cutting contact with the cutting member. Further, moving the fixture along second and third axes, each extending transversely to the first axis and machining the desired pin hole contours in the piston with the cutting member.

Abstract: The present invention provides an apparatus (100) for forming circumferential grooves (14) in the exterior surface of a linear member (10), such as a tube. The grooves are formed by rotating a cylindrical cutting element (120) around the tube such that cutting means in the cylindrical cutting element form the grooves. One rotation of the cylindrical cutting element causes multiple grooves to be formed in the surface of the tubes.

Abstract: A dental prosthesis manufacturing machine is disclosed. The machine includes two spindles each having a roughing tool and a finishing tool, a workpiece holder for holding a workpiece which forms the dental prosthesis, and a base supporting the two spindles and the workpiece holder. The machine is capable of simply alternating the roughing tool with the finishing tool according to the accuracy required when the workpiece is machined.

Abstract: A machine for processing optical work pieces having a work piece spindle for the work piece driving rotationally about a work piece rotation axis. At least one processing unit has a tool that can machine the work piece and an adjusting mechanism causes a relative movement between the work piece spindle and tool to selectively enable loading, unloading and processing of the work piece. The adjusting mechanism has a linear drive unit and a swivel drive unit that are stacked on each other to rotate the swivel drive unit and the work piece spindle about a swivel axis that is perpendicular to the work piece rotation axis, and has the linear drive unit move the work piece spindle along a linear axis that can be perpendicular to one of the swivel axis and the work piece rotation axis and parallel to or aligned with the other axis.

Abstract: A magnet comprising grains of a ferromagnetic material whose main component is iron and a fluorine compound layer or an oxy-fluorine compound layer of fluoride compound particles of alkali metals, alkaline earth metals and rare earth elements, present on the surface of the ferromagnetic material grains, wherein an amount of iron atoms in the fluorine compound particles is 1 to 50 atomic %.

Abstract: A table apparatus 10 of a machine tool, which is arranged on a bed 30 and moves in a forward and rearward direction of the bed 30 by ball screws 51 and 52, includes: a table main body 11 onto which a workpiece is fixed; and supporting units 12 and 13 configured to be attached to the ball screws 51 and 52, respectively, to be detachably connected to table main body 11, and to be movable in an axis direction of the ball screws 51 and 52 along with rotation of the ball screws 51 and 52, respectively. The table apparatus 10 is configured so as to allow the connection of the table main body 11 and the supporting units 12 and 13 to be releasable in a state where at least one of the ball screws 51 and 52 is attached to the supporting unit 12 or 13.

Abstract: A multi-spindle machining center for the chip forming processing of workpieces comprises a spindle group having at least two spindles arranged in a spindle row to mount a chip forming tool, and a workpiece support, on which at least two workpiece holders, correlated with the geometrical arrangement of the spindles, for holding workpieces for a simultaneous processing by means of the spindles, are arranged, the workpiece support having a beam-like longitudinal support member, bearing the workpiece supports, which at its longitudinal terminal regions is movably held on a respective workpiece support bearing structure and the spindles are guided for a movement toward the workpiece support in a first axial direction on a spindle linear guide arrangement.

Abstract: A multi-spindle machining center for the chip forming processing of workpieces comprises a spindle group having at least two spindles arranged in a spindle row adjacent to each other to mount a chip forming tool, and a workpiece support, on which at least two workpiece holders, correlated with the geometrical arrangement of the spindles, for holding workpieces for a simultaneous processing by means of the spindles, are arranged, the workpiece support having a beam-like longitudinal support member bearing the workpiece supports, and the spindles are guided for a movement toward the workpiece support in a first axial direction on a spindle linear guide arrangement.

Abstract: A milling and drilling machine comprising a rigid machine tool frame comprising an upper cross girth, a machining unit movable on the front side of the cross girth along at least two coordinate axes by means of a motor and including a rotationally driven work spindle including exchangeable tools, and a workpiece table which is disposed in front of the machine tool frame and horizontally movable along at least one coordinate axis by means of a motor and comprises a tabletop for clamping at least one workpiece. The machine tool frame comprises two rigid side walls rigidly connected to each other by the upper crossbar and a front end.

Abstract: There are provided a base frame 12 positioned below a horizontal axis O; a pair of clamp units 14 positioned at the two ends above the base frame; a pair of support units 16 that horizontally support the long workpiece in two locations, and that are capable of moving vertically; and machining units 18 that are capable of machining the long workpiece. The two clamp units 14 are capable of moving from the outside toward the inside, which support the long workpiece in two locations, and rotate around the horizontal axis O in synchronization with each other.

Abstract: A method for processing a screw rotor includes a step of rotating a blade holder 2 while shifting the blade holder 2 in X-axis, Y-axis, and Z-axis directions to form a groove on the outer surface of a rotating cylindrical workpiece 1 with a tool 3 using a processing apparatus having a bed 11; a C-axis shaft supporter 12 disposed on the bed 11; a C-axis shaft 14 held by the C-axis shaft supporter 12, the C-axis shaft 14 for rotating the cylindrical object 1; a column 13 disposed on the bed 11; the blade holder 2 rotatably held by the column 13; and the tool 3 attached to the blade holder 2.

Abstract: An end mill 10 is a tool for milling a metal block such as a metal mold and is placed in a machine tool such as a milling machine when in use. The end mill 10 is used to provide a rotary milling cutter and a milling method using the same, in which it is possible to perform orthogonal milling and pocket milling to efficiently form four corners with small radius, without repeatedly milling using a small-diameter end mill. The end mill 10 has two cutting edges 11a and 11b at its distal portion, and an edge angle D1 formed by the two cutting edges 11a and 11b is 70.53 degrees.

Abstract: Relative movements of a tool and a workpiece are controlled by moving a tool axis in all spatial dimensions for the material-removal machining of the workpiece to produce a desired target contour of the workpiece by a sequence of relative movements along a tool trajectory of the tool. The tool trajectory is subdivided into a multiplicity of target segments along which the tool is in engagement with the workpiece so that the orientation of the tool axis is consistent within a target segment, while the orientation of the tool axis is variable over the entire tool trajectory, and a respective and point of a target segment is connected by a linking pivot movement, during which the tool does not engage the workpiece and in which the orientation of the tool axis is altered, with a starting point of a further target segment.

Abstract: A milling method is for producing milled structural components of materials that are difficult to machine by chip-cutting. A milling tool with a tool radius is rotationally driven about an axis of the milling tool to ensure a central rotation thereof, whereby a reference point of the milling tool preferably lying on the axis is moved on several curved paths, whereby the paths preferably comprise different curvatures, and whereby the milling tool is moved on the paths with a radial miller feed relative to the material. The curvature at each path point of each path is determined in such a manner that an optimized or maximized circumferential contact of the milling tool is ensured for each path point.

Abstract: A machine tool is provided with: a rotating table apparatus that has a table for holding a workpiece, and that rotates the table based on a drive force that has been input; a processing area for processing the workpiece, the rotating table apparatus being carried into and out from the processing area; and a drive source for inputting the drive force when connected to the rotating table apparatus, the drive source being provided in the processing area such that the drive source can be disconnected from the rotating table apparatus.

Abstract: The present invention provides a multiple station tooling machine for the production of spirally grooved products and includes a base plate, a plurality of work stations distributed around the base plate and operable to effect selected tooling operations on work pieces, a support stand coupled to the base plate and supporting a support plate, and a turntable disposed above the support plate, the turntable being iteratively angularly movable. The multiple station tooling machine also includes a plurality of workpiece retaining elements and an actuating assembly including drive motors mounted on the support plate for moving the workpiece retaining elements to and between selected orientations. A plurality of generally vertical shafts each has a respective workpiece retaining element secured to one end thereof.

Abstract: A machine tool for at least triaxially machining work pieces (15) comprises a work spindle (10) and a working area (14) before the work spindle (10). A z skid (23), which is displaceable in the direction of the spindle (10), is disposed above the working area (14), with a work holding fixture (29) being joined to, and suspended downwards from, the z skid (23).

Abstract: A universal machine tool having a workpiece slide movable on a machine bed by means of a motor for the workpieces to be machined and a machining unit which is movable about a plurality of axes by means of a motor. The machining unit includes a motor-driven work spindle for receiving the machining tools. To enable turning operations in addition to milling and drilling operations with high cutting performance in a single clamping position, according to the present invention, the workpiece slide is provided with at least one rotatable workpiece accommodation and an associated rotary drive means. The rotary drive means can drive the workpiece accommodation for carrying out turning operations on the workpiece to be machined.

Abstract: An apparatus for the automated profiling the edge of successive optical disks, and including an optical disk supply assembly for holding a supply of optical disks to be profiled, a turntable for receiving an optical disk to be profiled, and for reciprocating between an optical disk loading position and an optical disk profiling position. A clamping assembly is provided for clamping the optical disk in a stationary condition to the turntable during movement between the loading position and the profiling position. A profiling cutter profiles the edge of the optical disk into a predefined shape when the turntable is in the profiling position.

Abstract: A system and method for inscribing an item is provided. The system includes a housing having a door, an inscriber, and a support. The inscriber is disposed in the housing and is operable to inscribe the surface of an item secured in an item carrier. The support has a positioning structure that is configured to engage the item carrier and establish a reference point so that the location of the surface of the item with respect to the support is determinable. The support moves between a loading position and an inscribing position to position the item for inscribing. There is also provided a controller that governs the movements of the inscriber and includes an input device. The input device is moveable between a first position to receive characteristics about the item to be inscribed and a second position to receive a message to be inscribed on the surface of the item.

Abstract: A machine for making a plurality of electrodes projecting from the front surface of a plate-like workpiece uniform in height, comprising a chuck table having a placing surface for placing the plate-like workpiece, which can be moved between a workpiece take-in/take-out area and a processing area, a chuck table moving unit for moving the chuck table between the workpiece take-in/take-out area and the processing area, a cutting unit having a cutting tool for cutting a plurality of electrodes projecting from the front surface of the plate-like workpiece arranged in the processing area and held on the chuck table to make them uniform in height, a cutting unit feed mechanism for moving the cutting unit in a direction perpendicular to the placing surface of the chuck table, a take-in means for carrying the plate-like workpiece before processing to the chuck table positioned in the workpiece take-in/take-out area; and a take-out means for taking out the plate-like workpiece after processing held on the chuck table p

Abstract: A milling and drilling machine for rod-shaped material. A motor-driven spindle head is movable on a column along a first coordinate axis and includes a work spindle capable of selectively accommodating milling and turning tools. A separating device transversely separates the rod-shaped material. A clamping device, disposed laterally alongside the workspace, has a workpiece holder with a clamping axis along a horizontal coordinate axis. A rotary drive is provided for the workpiece holder. The spindle head is pivotable about a Y axis at the front side of a headstock movable in the direction of the Y coordinate axis. The headstock is disposed on a motor-driven slide movable on the stationary column along an X coordinate axis parallel to the workpiece clamping axis. The clamping device is disposed on an inclined console located on the face of the column and movable along the Z coordinate axis in guides.

Abstract: A method for lengthening the machining travel of a machine-tool operating at a very high speed, including a tool-carrying ram mobile on three axes. The method combines with the machining movements of the tool-carrying ram along one or several axes, one or several rectilinear movements of the part to be machined by parametering and digitizing the relative travels and speeds of the part to be machined with respect to the tool-carrying ram. The invention also concerns the device for implementing this method and the machine-tool using such a device.

Abstract: A machine tool has a table body and a drive line on a bed. The table body is linearly movable via a guide member having a sliding or rolling guide surface. The drive line has a ball screw or the like, and moves the table body along the guide surface. A pair of guide members are provided at positions in point symmetry about the position of the center of gravity of the table body. Moreover, a pair of drive lines having the ball screws or the like are provided at positions in point symmetry about the position of the center of gravity of the table body. Alternatively, drive line having the ball screw or the like is provided at the position of the center of gravity of the table body.

Abstract: A portal milling machine has an elongated machine bed (10), the longitudinal direction of which defines an X-direction (2) (machine longitudinal direction). Furthermore, the portal milling machine is provided with a portal (20) which is arranged at right angles to the X-direction and has an elongated plan form, the longitudinal direction of which defines a Y-direction (4) (portal longitudinal direction). A milling unit (50) is arranged on the portal (20) so as to be movable in a translatory manner in a first direction and a second direction transversely to the X-direction (2), and a linear guide (14, 16) which leads through the portal in the X-direction (2) and is intended for a slide (30) carrying a work mounting device (32) and movable in the X-direction (2) is attached to the machine bed (10). In plan form, a part of the machine bed (10) projects beyond the portal (20) in the X-direction (2) at least on one side.

Abstract: A milling method is provided in which a finished part of any desired contour is milled from a blank of any desired contour by the milling tool being guided on a continuous, spiral guide path from the blank continuously to the finished part. In this case, material is continuously removed during the milling operation without ever lifting the tool or clamping the workpiece in place again. This results in a reduced machining time of the workpiece. The continuous, spiral guide path permits a harmonic change of form from the blank to the finished part with smooth guidance of the tool. The method can also be carried out with ceramic tools.

Abstract: A system and method for inscribing an item is provided. The system includes a housing having a door, an inscriber, and a support. The inscriber is disposed in the housing and is operable to inscribe the surface of an item secured in an item carrier. The support has a positioning structure that is configured to engage the item carrier and establish a reference point so that the location of the surface of the item with respect to the support is determinable. The support moves between a loading position and an inscribing position to position the item for inscribing. There is also provided a controller that governs the movements of the inscriber and includes an input device. The input device is moveable between a first position to receive characteristics about the item to be inscribed and a second position to receive a message to be inscribed on the surface of the item.

Abstract: The present invention relates to a notching machine for forming a radial notch into a workpiece, such as the side or end of a tube, pipe or rod. The notching machine includes a workpiece positioning assembly, a hub and spindle assembly, an offset mechanism, a hub drive mechanism and a spindle drive mechanism. The workpiece positioning assembly includes a cross slide table and a vice for gripping and positioning the workpiece into a desired position. The hub and spindle assembly includes a hub that is rotatably mounted on a hub rotation assembly. The hub rotation assembly rotates about a central axis of rotation. The hub carries a spindle and its tool. The hub, spindle and tool share a common axis. This common axis is the axis of rotation of the spindle and tool. The hub, spindle and tool can be aligned in an in-line or offset manner with respect to the central axis.

Abstract: A method for lengthening the machining travel of a machine-tool operating at a very high speed, including a tool-carrying ram mobile on three axes. The method combines with the machining movements of the tool-carrying ram along one or several axes, one or several rectilinear movements of the part to be machined by parametering and digitising the relative travels and speeds of the part to be machined with respect to the tool-carrying ram. The invention also concerns the device for implementing this method and the machine-tool using such a device.

Abstract: A machine tool comprising a bed, a worktable movable relative to the bed along a linear path and a tool movable to engage a workpiece on the worktable wherein drive means for effecting the movement of the worktable relative to the bed and therefore to the tool comprises a friction drive so as to provide a smooth carriage motion to the worktable. The worktable may be slidable along a slideway which defines the linear path for the worktable and the drive means therefor comprises an elongate member forming a track mounted parallel to the slideway. Wheel means frictionally engages the track and is carried by drive means therefor mounted on the worktable so that the axis of rotaion of the wheel means is fixed in relation to the worktable.

Abstract: In the case where a product having a free-curved surface is obtained, a machining work is performed by separate machine tools. Therefore, works of attaching and removing a half-machined product are necessary. Consequently, a lot of working time and labor are required. Also in an automatic production system, productivity is lowered if the system is stopped by failure in gripping during the attaching and removing works and an enormous equipment cost is required. A machining apparatus M comprises a main chuck head 1 having a control axis for holding and rotating a long bar member W, a head stock assembly 3 having three or more control axes, and a bar member feeder 5 for feeding the long bar member W to the head stock assembly 3. These four axes are simultaneously controlled to manufacture a plurality of products V having free-curved surfaces from the long bar member W.

Abstract: A turner holds a wood blank while positioning it adjacent a cutting bit of a router to cut the blank into a shaped cylindrical object. The turner includes a mandrel and two mandrel wheels attachable to ends of the mandrel, which each have finger gripping portions. A wood block is disposed on the mandrel and the wheels are attached to the mandrel. Spacers may be used to position the wood block. The mandrel/wood block assembly is then moved adjacent a cutting bit, such as a router bit, to remove wood from the wood block. This enables generally cylindrically shaped objects to be formed which may then be polished and finished and used in pens, mechanical pencils, handles and like holders.

Abstract: A hollow shaft, threaded on the interior, permits a workpiece, having a square cross section, to be rotated therein and thereby moved axially to be driven against a cutting edge to form the dowel.

Abstract: A centerless turning machine for rods. The machine includes a cutter-head mounted at the front end of a rotating hollow shaft, and further includes a plurality of advancing rollers of an infeed device operatively mounted at the inlet end of the turning machine. The turning machine further includes a front guide mechanism and a rear guide mechanism, respectively mounted on opposite sides of the cutter head, and also includes a clamping carriage which is mounted on the outlet side of the turning machine. The rear guide mechanism takes the form of a tubular support which is provided with a flange mounted in the machine housing and which extends into the rotating hollow shaft. The rear guide mechanism has, at its free end, which protrudes into the hollow shaft, three individually spring biased guide elements for the rod. The springs for each individual guide element form a first resilient abutment for each guide element. The movements of the three guide elements are synchronized by a rotatable ring.

Abstract: Elongate round workpieces W (e.g. bar or tube) are loaded singly from a rack (252) on to a supporting cradle formed by four ball castors (38). At each end of the cradle is an upper operating unit (20) and (22) comprising a machining unit having a chamfering tool (34) and a workpiece-driving unit having a driving wheel (32) in frictional engagement with the workpiece. The wheels (32) are rotated about their axes to rotate the workpiece, and further can be pivoted to each side of a neutral position in order to drive the workpiece along its length into engagement with first one chamfering tool and then the other. The operating units are mounted on upper guide rails (16) and (18) for adjustment of the distance between them. Lower operating units mounted on lower guide rails (24) and (26) comprise deburring tools (36) which also operate on the workpiece ends, adjacent to the chamfering tools (34).

Abstract: A dowel attachment for a router wherein the attachment is a rectangular body with a bore and a counterbore extending through the body to receive a blank to be formed into a dowel. The bore being adapted to have the finished dowel pass through it. A notch is formed in the rectangular body, perpendicularly and tangent to the bore. The notch receives a driven router bit. An electric drill may be attached to the blank being cut to spin the blank as it is fed through the counterbore and bore.

Abstract: An optical surface on a glass preform for an optical lens is simultaneously ground and polished. A glass blank is rotated by a work spindle mounted in an air bearing. A resin bonded diamond cutting ring is rotated by a tool spindle mounted in an air bearing. The axis of the tool spindle is set at an angle with respect to the axis of the work spindle with the edge of the cutting ring being centered on the axis of rotation of the blank. One of the spindles is moved linearly with respect to the other to move the cutting ring into engagement with the blank for grinding a precisely shaped, polished optical surface thereon. The spindles are mounted on a table and a driving motor for the linear drive is remote from the table to isolate the spindles from the vibration of the motor.

Abstract: Apparatus for guiding elongated generally cylindrical workpieces moving longitudinally along an axis includes a plurality of workpiece guides movable toward and away from the axis. An adjustment mechanism selectively moves the workpiece guides toward or away from the axis for positioning such guides in proper guiding relationship to the workpieces. Torsion springs are interposed between the workpiece guides and the adjustment mechanism for allowing yielding movement of the workpiece guides without imparting movement to the adjustment mechanism. Friction dampening devices are provided to inhibit yielding movement of the workpiece guides and to absorb vibrations imparted to the guides by workpieces moving therepast.

Abstract: A machine tool attachment which provides for material handling, positioning, and clamping during machining and also eliminates the need for custom tool fixtures is described. The machine tool attachment mechanically advances material to be machined through a tubular tail stock and into a head stock. Collets located in the tail stock and head stock automatically power clamp the material and a rotary indexer automatically rotates and indexes the material during the machining operation. Once machining is completed, the material between the head stock and tail stock is further clamped by the attachment and then cut by the machine tool. Remaining material can then be advanced by the attachment and the process repeated. The machine tool attachment interfaces with a numerically controlled machining center which transmits signals to control the functions of the attachment for proper coordination with the machine tool.

Abstract: A tool for deburring or finishing a workpiece is mounted for common reciprocatory movement with the wheelhead of a grinding machine. The tool, which is form of an elongated rod, is supported in a housing which is in turn pivoted about an axis transverse to the tool. A biasing means urges the tool toward a predetermined angular position about the pivotal axis of a housing. The tool cooperates with a workpiece to selectively overcome the bias and oscillate the tool in accordance with the relative reciprocatory movement between the grinding wheel and the workpiece.