Abstract: An actuation device driven by the adjusting motion of a first carriage is provided and, because of the adjusting motion of the first carriage from the first position into the second position, the adjusting motion of a second carriage can be driven from the measurement point to the rest position, and because of the adjusting motion of the first carriage from the second position into the first position, the adjusting motion of the second carriage can be driven from the rest position to the measurement point.

Abstract: A method of machining gears or other toothed articles wherein the workpiece feed rate and/or the tool shifting is varied so as to produce an irregular surface pattern on tooth surfaces with a resulting reduction in mesh noise. The method is particularly applicable to grinding spur and/or helical gears with a grinding worm.

Abstract: The present invention provides a controllable gear lapping process whereby the lapping process may be modified at discrete locations on the tooth surface in order to selectively modify the tooth flank surface.

Abstract: A machine for processing gears, such as by testing and lapping, which can accommodate a wide range of gear pair shaft angles (less than, equal to, and greater than ninety degrees) while providing improved machine stiffness and an enhanced arrangement of machine elements.

Abstract: A method for providing a surface structure wherein conventional grinding micro scratches are broken up to provide a diffuse structure of micro scratches and micro flats resulting from grinding wheel motion comprising an eccentric revolving of the grinding wheel and/or grinding wheel pulsing.

Abstract: The present invention provides a controllable gear lapping process whereby the lapping process may be modified at discrete locations on the tooth surface in order to selectively modify the tooth flank surface.

Abstract: A method and tool arrangement for producing straight bevel gears and the like on a multi-axis computer controlled machine wherein a single tool is utilized in the machining process.

Abstract: A method for dressing an essentially cylindrical grinding worm on a machine suitable for continuous generation grinding in the diagonal method. The dressing tool is an essentially cylindrical gear wheel, having an abrasive coating on the surface that effects the dressing, which is brought into engagement with the grinding worm to move relative to the grinding worm in axial direction of the same to profile the flanks of the grinding worm. A periodically alternating movement in axial direction of the dressing gear wheel is superimposed on the relative movement of the dressing gear wheel, with the wavelength of the oscillating relative movement being the same or smaller than the usable width of the grinding worm in its axial direction.

Abstract: A system to replace or augment the common manual cone-gage method with a method that is highly automated on a CNC machine. Two cone-gage fixtures are employed, getting clamped into the gear and pinion workholding fixtures, respectively. But instead of mechanical contact, dial indicators, or other methods, a precision electronic touch probe is employed that, together with the CNC motion-controlled machine axes, can be used to measure and position gage fixture surfaces.

Abstract: A truing tool for truing an essentially cylindrical grinding worm that is arranged on the tool spindle of a machine suitable for the continuous generation grinding in the tangential- and diagonal process. The truing tool comprises an essentially cylindrical gear wheel (6) having an abrasive coating on the surface that is active during truing to profile the flanks of the grinding worm (3) and an essentially cylindrical roll (7) having an abrasive coating on its circumferential surface to adapt the diameter of the addendum circle of the grinding worm. The gear wheel (6) and the roll (7) can be connected axially and torsion-resistantly to the work piece spindle (1) of the machine.

Abstract: Method and apparatus for positioning a workpiece in a spindle of a machine tool and/or removing a workpiece from the spindle. The machine spindle includes an axis of rotation and the workpiece includes a centerline extending between a first end surface and a second end surface. A mechanism is provided for grasping the workpiece, preferably on its centers, in a position proximate the spindle whereby the workpiece centerline is coincident with the axis of rotation of the spindle. The spindle is moved relative to the workpiece in the direction of the axis of rotation whereby the workpiece is inserted into the spindle or removed from the spindle.

Abstract: A coolant delivery apparatus for a machine tool wherein the position of the coolant delivery apparatus is controllable such that coolant may be delivered to the machining contact zone of a tool even though the location of the machining zone of the tool may change such as during machining of a workpiece, or from one workpiece to another.

Abstract: A dressing tool for profiling the tip area of a threaded grinding wheel used for continuous generation grinding. Concave working faces (13) are arranged in a cylindrical surface of the dressing tool (7) and coated with an abrasive coating. The pitch (P) of said working faces (13) corresponds to the pitch of the grinding wheel (3). The dressing tool (7) can be brought into rolling engagement with the grinding wheel (3) under crossed axes.

Abstract: The cross-sectional profile of the outer peripheral surface of a honing wheel is within a spherical enveloping surface that is concentric with the honing wheel. Due to the cross-sectional profile of the outer peripheral surface of the honing wheel, tilting in the opening of the tool head is reliably prevented. Even if the honing wheel is tilted during installation or removal, there are no projecting edges which could catch on the inside surface of the tool head.

Abstract: A machine for deburring and fine machining of the tooth flanks of toothed workpieces with a gear-shaped fine machining tool, preferably, a shaving wheel, which is in rolling engagement with a workpiece, comprising a tool spindle, a motor for driving the tool spindle, a workpiece spindle with a clamping device for the workpiece, a motor for driving the workpiece spindle, a sensor correlated with the workpiece spindle for determining the angular position of the teeth of the workpiece relative to the axis of the workpiece and an electronic gear coupling the drive motors of the tool spindle and of the workpiece spindle which, as a function of the signal of the sensor, rotates the fine machining tool and the workpiece such relative to one another that tooth and gap are aligned.

Abstract: An apparatus for clamping a workpiece in a machine. The apparatus comprises an inner nose portion being rotatable about an axis of rotation and comprising a plurality of mounting surfaces, and, an outer ring portion rotatable about the axis of rotation and comprising at least one clamp operable between an unclamped position and a clamped position. In the unclamped position, the inner nose portion is rotationally positionable about the axis relative to the clamp such that a workpiece positioned against the mounting surfaces may be oriented relative to the clamp to a position at which with the clamp being operated to the clamped position, the workpiece is clamped against the mounting surfaces. The clamping results in a coupling of the inner nose portion and the outer ring portion whereby with a clamped workpiece, the inner nose portion and the outer ring portion are rotatable together and are positionable about the axis.

Abstract: A method of grinding cutting blades with a grinding wheel having first and second grinding edges. The method comprises rough grinding at least one surface of the cutting blade with the first grinding edge and finish grinding at least one surface of the cutting blade with the second grinding edge.

Abstract: A machine for manufacturing bevel and hypoid gears comprising a machine column including a first side and a second side. A first spindle is movably secured to the first side with the first spindle being rotatable about a first axis. A second spindle is movably secured to the second side with the second spindle being rotatable about a second axis. The first and second spindles are movable linearly with respect to one another in up to three linear directions with at least one of the first and second spindles being angularly movable with respect to its respective side. The angular movement of at least one of the first and second spindles being about a respective pivot axis extending generally parallel with its respective side.

Abstract: A tool for chamfering and deburring of end face tooth edges of spur and helical gears comprising (1) at least one rolling deburring wheel for machining the tooth edges, arranged at an end face relative to the workpiece and meshing therewith, and (2) a toothed spacer wheel, positioned axially adjacent to the rolling deburring wheel and fixedly connected thereto and meshing with the workpiece. The spacer wheel being formed as a driving wheel about a portion of its periphery and as a smoothing wheel for machining the edge zones of the tooth flanks about the remaining portion of the periphery. The spacer wheel is divided into at least two discs which are connected to one another so as to be rotationally adjustable.

Abstract: A machine for manufacturing bevel and hypoid gears including a column, a first spindle, and a second spindle is provided. The column has a first side and a second side. The first spindle is movably secured to the first side and rotatable about a first axis. The second spindle is movably secured to the second side and rotatable about a second axis. The first and second spindles are movable linearly with respect to one another in three directions. At least one of the first and second spindles is angularly movable relative to its respective side about a vertical pivot axis.