Abstract: The invention relates to the generation of periodic profiles on at least approximately rotationally symmetrical blanks, such as, for example, the generation of shaft-hub connection profiles such as circular wedge profiles, splined shaft profiles, etc., on shaft or hub blanks. To this end, the use of generating skiving is proposed, which permits the production of any desired periodic profiles on rotationally symmetrical blanks and is far superior to rival processes with regard to the productive machining time.

Abstract: A machine tool for selectively machining workpieces with cutting tools and a laser beam having a machining unit including a motor-driven work spindle for machining workpieces with cutting tools, a laser beam source including a beam guiding arrangement for machining workpieces with a laser beam, and a work table movable by means of a motor for clamping at least one workpiece thereto. To enable machining by means of cutting tools as well as machining by means of a laser beam with a construction of simple design without complicated exchange operations, the beam guiding arrangement is arranged on the machining unit so that it is displaced with respect to the work spindle.

Abstract: A chip suction type machine tool continuously removing chips produced during work machining by air suction, comprising a tool attaching part (200) in which a vent hole (s1) is formed and a spindle head (100) having an air suction hole (s2) communicating with the vent hole (s1) wherein, with the tool attaching part (200) installed on the spindle head (100), a telescoping cylinder means (201) which is formed in an inclined surfaces crossing at an angle (&thgr;) of approximately 60° or below, and facing closely, the direction of the spindle, allows at least one of the downstream end part of the vent hole and the upstream end part of the air suction hole to be deformably telescoped and, in free state, is held in a retracted state so that these downstream and upstream end parts are departed from each other by elastic member (205) which is provided between the downstream end part of the vent hole (s1) and the upstream end part of the air suction hole (s2).

Abstract: Methods and apparatus are disclosed for de-wiring bales tied by metal wires. The method includes moving the bales along a conveyor, stopping movement of the bales and clamping opposite sides of the bales between a pair of clamping units moving perpendicularly to the direction of the conveyor to clamp the opposite sides of the bales therebetween, cutting the metal wires on one side of the bales by means of a cutting tool forming part of one of the clamping units, seizing the metal wires on the other side of the bales and winding up the seized metal wires by means of a gripping and winding tool forming part of the other clamping unit, and discharging the wound-up metal wires from the gripping and winding tool.

Abstract: A method for forming non-circular dimples in a spherical surface is characterized by the use of a pantograph to repeatedly translate a master dimple configuration into the spherical surface. A drill bit is drilled into a portion of the spherical surface to a first depth. The drill bit is displaced relative to the surface by the pantograph along a given path without altering the axial orientation of the bit in order to form a non-circular dimple in the surface. The bit is removed from the surface and the process is repeated across other portions of the surface to form identical dimples therein.

Abstract: A safety guard assembly is adapted to be conveniently moved into position between a work area and an operator station. The safety guard is characterized by a unitary transparent polymer having a planar portion and ribs that impart to the planar portion rigidity against longitudinal bending and transverse flexing. Brackets are attached to opposite sides of the guard and an associated handle and one end of an associated universal support arm are connected to each bracket. The opposite end of each universal support arm is mounted remote from the work area. The handles and universal support arms enable the guard to be quickly and conveniently moved by an operator between positions adjacent to and remote from the work area. When moved between the work area and operator station, the guard restricts, from passage to the work station, chips, broken tools, coolant, etc.

Abstract: A workpiece table, provided for a machine tool, is movable back and forth between two end positions and has for this purpose a rotational drive which has a gear part joined to the workpiece table for rotation thereof, a toothed rack in engagement therewith, as well as a medium-actuated shift drive for displacement of the toothed rack, which thereby performs a linear stroke motion, delimited by stops, between two end locations corresponding to the end positions of the workpiece table. Provided on the workpiece table is a mechanism which acts upon the toothed rack with a higher feed force at the beginning of the linear stroke movement than during the remainder of the linear stroke.

Abstract: A machining device equipped with a spindle position interchanger comprises a longitudinal table provided on a bed and movable in a horizontal direction; a transverse table provided on the longitudinal table and movable in a direction perpendicular to the longitudinal table; a column erected on the transverse table and turnable in a horizontal plane; a first spindle head vertically movable along the column; a second spindle head provided at a position different from (at a position at 1800° to, or opposite to) the position of the first spindle head and vertically movable along the column independently of the first spindle head; a first main spindle and a second main spindle attached to the first spindle head and the second spindle head, respectively; a tool change arm for changing a tool in the second main spindle; and a tool magazine mounted on an upper portion of the column for housing many tools.

Abstract: An electric wire supplying apparatus comprises an electric wire transfer tube 27 provided at its tip end with a notch 28a, a nozzle 32 disposed on the tip end of the electric wire transfer tube 27, a transfer tube fixing holder 23 fixing the tip end of the electric wire transfer tube 27 and having an opening 24b opened in the notch 28a of the electric wire transfer tube 27, and an electric wire pressing means 29 having an electric wire pressing portion 31 that moves into and out from the notch 28a and moving the electric wire pressing portion 31 between a pressing position for pressing an electric wire and a standby position for not pressing the electric wire, wherein the nozzle 32 is provided at its portion closer to the electric wire transfer tube 27 with a projecting portion 35 for substantially complementing a shape of the notch 28a when the projecting portion 35 is butted to a tip end of the electric wire transfer tube 27, and the nozzle 32 can move between a close position where the projecting portion 3

Abstract: A machine tool has a workpiece table for fixing workpieces to be machined and a tool spindle for receiving in a fixture the tools used for machining the workpieces. The machine tool works with an overhead tool pointing upwards in the operating condition.

Abstract: The invention relates to a method for discharging cutting products from a metal-cutting machining process and to a machining process. In order to achieve a good discharge of cutting products at a relatively low outlay and with low costs, it is proposed that solid CO2 particles (2) be supplied to a gas stream (5), the gas stream, together with taken-up solid CO2 particles, be supplied to a machining space, in which the machining process is carried out, and be directed onto a region in the machining space in which a workpiece (7) is cutting-machined by a tool (6).

Abstract: A feeding pin 146 is downwards inserted into an insertion hole h formed in a direction in which the hoop T is fed so that the feeding pin 146 is moved in the feeding direction. The feeding pin 146 is completely caught by the hoop T to restrain the hoop T in the feeding direction. Thus, overrunning of the hoop T can completely be prevented. Thus, the hoop T can be stopped at a predetermined position. Moreover, cutting of the hoop T and separation of the terminal by cutting can accurately be performed. A hoop holding pin 151 is downwards inserted into the insertion hole h formed at a position different from a position at which the feeding pin 146 is inserted prior to insertion and removal of the feeding pin 146. Thus, further accurate feeding of the hoop T can be performed and, therefore, accurate cutting of the hoop T and separation of the terminal by cutting can be performed.

Abstract: A vibration dampened spindle and tool holder assembly for a rotary cutting machine. The assembly includes a spindle and a tool holder retained therewith. The tool holder has an interfacing ledge with a top surface for abutment with a distal spindle surface, and a continuous channel disposed in a proximal portion of the top surface. A resilient dampening member, having a rectangular or a circular cross sectional configuration, resides in the channel for compressed abutment with the spindle surface. Because the dampening member is situated within the channel, the interfacing placement of the spindle surface and tool holder top surface meet as the dampening member is enshrouded in the channel by these abutting surfaces and thereby protected from contaminant entry during dampening action.

Abstract: The invention provides a machine and methods for automated manufacture of tapered adjustable ducts, and particularly tapered adjustable take offs. A tube of material is cut into gores of predetermined configuration, coupling beads are formed in the gores and the gores are adjustably interconnected to one another to form the finished take off duct in an automated fashion. The apparatus for forming an adjustable duct member may include a housing including at least one work station formed therein. A die associated with the work station is selectively positioned at a predetermined location relative to a work piece positioned in association with the work station. A cutting and forming assembly associated with the work station cooperates with the die to selectively cut the work piece to form first and second members and to form a coupling bead in the first and second members which cooperate to reconnect the first and second members together at a predetermined angle.

Abstract: A system (1) for making and assembling a cistern comprises means for locating, cutting, driving, welding, bending, drilling and assembling the component parts of said cistern, wherein said system sequentially provides said locating and cutting means in a first and second stations (2, 3), for arranging, under an automatic control, the metal components (18, 19) of an outer cage (20) of said cistern on said automatized driving means, which are operatively coupled to said automatized welding, cutting, bending and drilling means which, under an automatic control, complete the making of the metal cage encompassing the cistern and then send it to said assembling means which under automatic control, complete the making of the cistern by assembling a pallet (15), a tank and said cage, each of said automatized means being jointly controlled by a central control unit.

Abstract: To improve a metal-cutting process for machining cylindrical contours, especially eccentric cylindrical contours on a workpiece mounted to rotate about a longitudinal axis, especially with eccentric crankshaft bearings using a lathe tool, producing a finished contour that either has end measures of satisfactory surface quality or has oversize for finish machining such as grinding or dressing, so that while maintaining or enhancing surface quality and maintaining or enhancing dimensional accuracy, machining times are reduced and overall economic efficiency is raised, the invention proposes that the tools tipped with cutting inserts, especially throw-away cutting inserts, are engaged successively or even simultaneously and that at least one part of the cutting inserts is guided in relation to the workpiece at an effective cutting angle (&ggr;f) between −5° and +5° and/or a positive tool back wedge angle (&ggr;p).

Abstract: A toolholder assembly is disclosed having an elongated spindle adapted to be rotatably driven about a longitudinal axis. The spindle also includes a longitudinally extending bore open at one end. A chuck has a collet at one end for holding a tool and an elongated shank at its other end adapted for insertion into the spindle bore. A ball lock assembly releasably coaxially secures the chuck to the spindle upon insertion of the chuck shank into the spindle bore to an operable position. The chuck also includes a conical surface at the free end of the shank. This free end of the shank engages a spring loaded piston positioned at the innermost end of the spindle bore when the chuck is inserted into the spindle to its operable position and this piston includes a conical surface complementary to the conical surface on the shank. The cooperation between the ball lock assembly and the piston coaxially and securely, but releasably, secures the chuck to the spindle.

Abstract: There is provided an apparatus for stripping insulation from a wire that comprises a cutter mechanism and a cutter holder for carrying the cutter mechanism. The cutter mechanism has opposite cutting edges that are movable relatively toward and away from one another other perpendicular to the length of the wire. The cutter holder is reciprocally movable along the length of said wire and revolvable about an axis that passes through the wire. The opposite cutting edges move toward to each other to cut into an insulation portion of the wire, followed by which the cutter holder revolves about said axis and moves away from an end of the wire to remove the insulation from the wire.

Abstract: Device to produce multi-layer electronic circuits each consisting of a plurality of individual circuits each made on a base support (12) on which electrically conductive material is deposited able to embody determined conductor tracks, said device comprising at least a printing station (13) able to deposit said electrically conductive material onto said base support (12) and a drying and cooling station (14), downstream of said drying and cooling station (14) there being provided an assembly station (16) able to superimpose a plurality of base supports (12) one on top of the other, on which base supports (12) individual electronic circuits are made, selectively alternating with electrically insulating sheets (92).

Abstract: The tools of the various machining heads are housed on a common drum, which is remote from the heads and rotated to select a given row of tools. At each head, there is provided and intermediate station having a container housing a row of tools; and a shuttle provides for sequentially transferring the tools between the drum and the intermediate stations. Each container is rotated 90° between a position cooperating with the shuttle and a position cooperating with a device for exchanging the tools between the head and the container. The container is also movable with respect to the device to select the location of the tool to be changed.