Abstract:
A holder for taps and dies has an elongated holding portion having sockets for holding dies in fixed position for use, elongated recesses for storage of taps therein, a drive socket for reception of taps thereinto for use, a movable retainer secured over the recesses for selectively retaining the taps in the recesses and releasing the taps individually for engagement with the drive socket, and retention means cooperating with the holding portion, the retainer, and the taps for retention of the taps on the holding portion for preventing loss of the taps from the holder during their aforesaid release for engagement with the drive socket.
Abstract:
An apparatus for forming internal gear teeth at large workpieces at a gear shaper or gear shaping machine comprising a machine bed at which there are arranged a workpiece table for chucking a workpiece and an upright or stand. The workpiece table and the stand are rotatable, relative to one another, about the workpiece axis and radially feedable relative thereto. The stand has guide means along which there can be moved to-and-fro a plunger by means of a plunger drive. An auxiliary stand is rotatably and radially displaceable about the workpiece axis upon a bearing rim which is coaxially attached at the workpiece. The auxiliary stand has a guide arrangement along which there can be moved to-and-fro, in the tooth lengthwise direction of the internal teeth, an auxiliary plunger driven by the plunger by means of a bridge arrangement.
Abstract:
A compound planetary gearset in which the input ring gear drives the large pinion of a compound planetary pinion and the low brake holds the large sun gear meshing with the small pinion, the second brake holds the small sun gear meshing with the large pinion and the direct drive clutch locks the small sun gear to the output shaft and the reverse brake holds a second ring gear which meshes with a reverse pinion, also meshing with the large sun gear. The small pinion and the large pinion of the compound pinion have the same number of teeth. The small pinion has a small pitch and the gears meshing with it the same small pitch, and the large pinion has a large pitch and the gears meshing with it have the same large pitch. The compound pinions are finish cut by a one piece cutter which simultaneously cuts a pair of teeth, one tooth on the large pinion and one tooth on the small pinion, so the teeth on both pinions of each compound pinion have an identical radial alignment relation to each other and all the compound pinions of the gearset are identical in this relation for equal load sharing.
Abstract:
A gear shaping apparatus in which a work piece to be shaped into a gear and a cutting tool undergo relative rotational movement about their axes, reciprocating movement parallel to their axes, and engaging/disengaging motion whereby their axes move towards and away from each other. A separate continuously operable computer operated control device is provided for causing each of these movements, each of the control devices being operable mechanically independently of the others.
Abstract:
The invention relates to a method for producing or machining, by cutting, an identical set of teeth on each of a plurality of workpieces, in particular at least 4 workpieces, of a workpiece batch on one or more gear-cutting machines (100) having a gear-cutting tool (S), which has a set of teeth having rake faces (5) and having an axis of rotation (B1), in rolling machining engagement, in which method, in the event that a deviation of a set of teeth from the tooth profile sought for said set of teeth is detected or expected, a countermeasure that counteracts said deviation is determined and the production/machining of additional workpieces of said workpiece batch is continued using the countermeasure, the countermeasure being, at least in part, a change in the position of the rake faces relative to the axis of rotation of the tool, which change is brought about by means of grinding performed on the gear-cutting machine or at a grinding machine (140) that belongs to the machine group of the gear-cutting machine.