Abstract: A machine tool and method for incorporating undercuts in left and right tooth flanks of teeth of a toothed gear blank by hob peeling, wherein the gear blank and a cutting wheel having cutting teeth with right and left cutting edges arranged at an axis intersection angle to the gear blank are continuously rotationally driven at a fixed speed ratio, the cutting teeth engage in the tooth flanks in a manner that removes shavings and the feed has at least one movement component in the direction of extension of the teeth of the gear blank.

Abstract: A method and an apparatus for skiving a work piece that has a rotationally-symmetric, periodic structure, by applying a skiving tool. The skiving tool has a tapering collision structure. During skiving, a coupled relative movement of the skiving tool in relation to the work piece is performed. The skiving tool is rotated about a first rotation axis and the work piece is rotated about a second rotation axis. A negative tilt angle is set during skiving, and the first rotation axis runs skew with respect to the second rotation axis.

Abstract: In a method for machining a workpiece, an end face gearing is created on the end face of the workpiece by hob peeling. The workpiece is rotated about the Z axis in relation to a coordinate system with X, Y and Z axes arranged perpendicularly to one another. During creation of the end face gearing, the feed direction of the hob peeling tool encloses with the axis of rotation of the hob peeling tool an angle which is greater than 0° and less than 35°. The hob peeling tool is arranged in the X-Z plane at an angle to the X axis which is greater than 0° and less than 20°.

Abstract: A tool, a method and a machine for producing a tooth profile by performing a coupled skiving movement between a skiving tool and the workpiece, by rotating the tool about a tool axis of rotation and rotating the workpiece about a workpiece axis of rotation. The tool includes a crown gear, on the front of which a tooth system with a cutting profile is located, which when in use reproduces the tooth profile on the workpiece.

Abstract: A device for cutting teeth in gear blanks by hob peeling, the device having a workpiece spindle for holding the gear blank, the workpiece spindle being rotationally drivable about a workpiece rotational axis, the device having a tool spindle which carries a peeling wheel having cutting edges and which is rotationally drivable about a tool rotational axis, wherein the tool spindle and the workpiece spindle may be positioned relative to one another at a fixed or variable axis intersection angle, and for the purpose of forward feed and infeed, the tool spindle is movable relative to the workpiece spindle in the radial direction and in the axial direction with reference to the workpiece rotational axis by means of positioning drives, and the device having an electronic control device for controlling the positioning drives and rotationally driving the tool spindle and the workpiece spindle at a specified rotational speed ratio, optionally with a changing phase position.

Abstract: A method and an apparatus for skiving a work piece having an outer rotationally symmetric periodic structure by applying a skiving tool. The skiving tool is an inside skiving ring spanning an interior space that includes a plurality of cutting teeth. At least one cutting edge, one cutter head tip and one cutting face are provided on each cutting tooth. The cutting faces of all the cutting teeth are arranged rotationally symmetric with respect to the rotational axis of the skiving tool on a front plane or a front side cone surface of the inside skiving ring, and the cutting teeth project into the interior space and point in the direction of the rotation axis.

Abstract: An internal gear shaving machine 1 which brings a shaving cutter 3 and an internal gear held by a workpiece chuck 2 into engagement with a crossed axes angle, and subjects the tooth flanks of the internal gear to final machining while it rotationally drives at least one of the shaving cutter 3 and the workpiece chuck 2. The workpiece chuck 2 and shaving cutter 3 are supported movably toward and away from each other in a vertical direction with the workpiece chuck 2 higher and supported movably in the horizontal direction relative to each other. The workpiece chuck 3 is constituted to hold the outer circumferential surface of the internal gear with the axis of rotation of the internal gear oriented in a up-down direction so that shavings produced during processing by the shaving cutter can fall downwardly from the internal gear.

Abstract: A cutting machine includes linear electrical actuation for controlling linear reciprocating movement of a spindle and cutting tool. The cutting machine is suited for gear shaping cutting operations and the like. Linear electrical actuation may be used to control position of a hydraulic valve within the spindle, which controls hydraulic actuation and linear movement of the spindle. Linear electrical actuation may also be used to pivot the spindle to relieve the cutting and/or during the cutting stroke for gear crowning operations. A rotary actuator is also disclosed as incorporated into the pivoting saddle of such a cutting machine.

Abstract: A new Wedge Cutting Jig Device for offering a tool that enables one to cut wood wedges and shims and the like with a variety of thicknesses. The inventive device includes a base, a handle, a wood pocket, a wood push wall, and a thickness adjustment means. In use, an ordinarily and otherwise scrap lumber end is placed on a table saw and the Wedge Cutting Jig Device 10 is taken by the hand of the operator. The operator turns the table saw on, and with the Wedge Cutting Jig Device 10 sliding down a slot of the table saw with the slide rail 22 of the Wedge Cutting Jig Device 10 being slidably received within the slot of the table saw, the scrap lumber end is safely forced past the turning blade of the table saw and results in a wood wedge being cut out.

Abstract: In a process for machining a spur gear by using a grinding worm having a curved tooth thickness smaller than the final measurement of the curved tooth gap of the spur gear to be produced, the grinding worm is first directed radially towards the spur gear until the desired distance between the axes is reached. Subsequently, a relative circular feed movement is carried out consisting of a positive or negative additional rotating movement of the gear or the worm. This additional rotating movement is superimposed on the corresponding basic revolution of the gear or the worm. In this way, first one flank and subsequently the other flank of each gear tooth is machined to its final dimension. With this process, a full linear contact exists between the grinding worm and the tooth flank of the gear during roughing independent of the amount of material to be machined. Due to the existing play, an effective cooling is possible so that high grinding outputs can be achieved.

Abstract: A method and apparatus for shaping by generating for producing profiles on workpieces, especially on cylindrical gears. The workpiece and a shaping tool rotate continuously according to a fixed preset transmission ratio. The shaping tool additionally carries out an oscillating movement in the direction of its axis of rotation and thereby generates small cuts on the workpiece during at least two shaping rotations. The small cuts generated after each shaping rotation on the circumference of a circle of contact of the workpiece are provided on the workpiece displaced, relative to the small cuts made during the previous shaping rotation. The apparatus for carrying out the method includes a rotatably driven shaping tool, which carries out a stroke movement in the direction of its axis of rotation, and a rotatably driven clamping device for the workpiece, whereby the rotating motions of the shaping tool and of the clamping device occur continuously according to a fixed preset transmission ratio.