A method and apparatus for processing a metallic workpiece with defined edges (e.g., a gear) comprises media blasting of the workpiece by directing a first media against exposed surfaces on the workpiece to increase the root strength of the gear, the blasting causing the defined edges to be radiused or mushroomed, ceasing the media blasting, loading the workpiece into a finishing apparatus, and subjecting the workpiece to a finishing process with a second media, the exposed surfaces on the workpiece being subjected to the finishing process to reduce the radiused edges on the workpiece created from the media blasting. The process of moving the workpiece to the spindle-finishing apparatus from the media blasting may be performed automatically by a machine. Once the workpiece has been subjected to the finishing process with the second media, it may be removed from the spindle-finishing machine, washed, and rinsed with rust inhibitor whereby wear properties of the workpiece are enhanced.

A sprocket configured for use with a conveyor belt and capable of resisting material buildup up is disclosed. The sprocket includes a sprocket body including a hub, a webbing, and a plurality of teeth. In one form, at least one tooth of the plurality of teeth defines a thickness in an axial direction that varies between an inner portion and an outer portion of the tooth. In another form, at least one tooth extends radially from a sprocket root near the webbing, the sprocket root including a curved base that extends axially away from the webbing to a lateral surface of the at least one sprocket tooth. In yet another form, a hub height is greater than a tooth thickness and the tooth thickness is greater than a web thickness.

A sprocket configured for use with a conveyor belt and capable of resisting material buildup up is disclosed. The sprocket includes a sprocket body including a hub, a webbing, and a plurality of teeth. In one form, at least one tooth of the plurality of teeth defines a thickness in an axial direction that varies between an inner portion and an outer portion of the tooth. In another form, at least one tooth extends radially from a sprocket root near the webbing, the sprocket root including a curved base that extends axially away from the webbing to a lateral surface of the at least one sprocket tooth. In yet another form, a hub height is greater than a tooth thickness and the tooth thickness is greater than a web thickness.

A hobbing machine is disclosed having a workpiece spindle, by means of which a workpiece can be rotated about a workpiece axis, a hobbing head, at least one chamfering device, a first slide with a first slide guide system, wherein the hobbing head is arranged on the first slide, and a rail system. The first slide, by means of its first slide guide system, is arranged in a displaceable manner on the rail system. The hobbing machine also has a second slide with a second slide guide system. The at least one chamfering device is arranged on the second slide. Also, the second slide, by means of its second slide guide system, is arranged in a displaceable manner on the rail system, such that the first slide and the second slide can be displaced on an identical portion of the rail system. Presented is a structurally simple hobbing machine by means of which a workpiece can be hobbed and chamfered in a short period of time.

A hobbing machine is disclosed having a workpiece spindle, by means of which a workpiece can be rotated about a workpiece axis, a hobbing head, at least one chamfering device, a first slide with a first slide guide system, wherein the hobbing head is arranged on the first slide, and a rail system. The first slide, by means of its first slide guide system, is arranged in a displaceable manner on the rail system. The hobbing machine also has a second slide with a second slide guide system. The at least one chamfering device is arranged on the second slide. Also, the second slide, by means of its second slide guide system, is arranged in a displaceable manner on the rail system, such that the first slide and the second slide can be displaced on an identical portion of the rail system. Presented is a structurally simple hobbing machine by means of which a workpiece can be hobbed and chamfered in a short period of time.

The invention relates to a method for machining a tooth edge formed between a tooth flank and an end face (2b) of the workpiece tooth arrangement (3), by means of a tool tooth arrangement (13), in which method the tooth arrangements (3, 13) rotate about their respective tooth arrangement rotational axes (C, B) in mutual rolling coupling, wherein the two tooth arrangement rotational axes (C, B) are substantially parallel to each other and the machining is carried out over a plurality of workpiece rotations, and wherein a first relative movement (Z) between the workpiece tooth arrangement (3) and the tool tooth arrangement (13), parallel to the workpiece rotational axis, is carried out and the position of the envelope (28) of the tool tooth rolling positions (29i) is shifted relative to the engagement position of said envelope with the tooth flank of the workpiece tooth arrangement in the plane (X-Y) orthogonal to the workpiece rotational axis (C), transversely to the profile of the workpiece tooth arrangement, by means of a second relative movement (V), which in particular is varied according to the movement state of the first relative movement. The invention also relates to a chamfering tool, to a control program having control instructions for carrying out the method, and to a gear-cutting machine.

The invention relates to a method for machining a tooth edge formed between a tooth flank and an end face (2b) of the workpiece tooth arrangement (3), by means of a tool tooth arrangement (13), in which method the tooth arrangements (3, 13) rotate about their respective tooth arrangement rotational axes (C, B) in mutual rolling coupling, wherein the two tooth arrangement rotational axes (C, B) are substantially parallel to each other and the machining is carried out over a plurality of workpiece rotations, and wherein a first relative movement (Z) between the workpiece tooth arrangement (3) and the tool tooth arrangement (13), parallel to the workpiece rotational axis, is carried out and the position of the envelope (28) of the tool tooth rolling positions (29i) is shifted relative to the engagement position of said envelope with the tooth flank of the workpiece tooth arrangement in the plane (X-Y) orthogonal to the workpiece rotational axis (C), transversely to the profile of the workpiece tooth arrangement, by means of a second relative movement (V), which in particular is varied according to the movement state of the first relative movement. The invention also relates to a chamfering tool, to a control program having control instructions for carrying out the method, and to a gear-cutting machine.

A cutting tip, a cutting tool and a gear edge cut-off device have greater ease-of-use than the conventional art. The cutting tip has a shaft portion supported linearly movably and forwardly biased in a linearly moving direction, an angular base portion provided at a front end of the shaft portion and having a pair of skirt faces and a ridge portion that extends obliquely with respect to the linearly moving direction, a groove depressed near the ridge portion of the skirt face, a blade edge on the cutting blade, positioned on a border line between the ridge portion and the groove, a rake face provided on the cutting blade and positioned further toward the groove side than the blade edge, and a flank face positioned further toward the ridge portion side than the blade edge and jutting out in the forward direction as it retracts from the blade edge.

A cutting tip, a cutting tool and a gear edge cut-off device have greater ease-of-use than the conventional art. The cutting tip has a shaft portion supported linearly movably and forwardly biased in a linearly moving direction, an angular base portion provided at a front end of the shaft portion and having a pair of skirt faces and a ridge portion that extends obliquely with respect to the linearly moving direction, a groove depressed near the ridge portion of the skirt face, a blade edge on the cutting blade, positioned on a border line between the ridge portion and the groove, a rake face provided on the cutting blade and positioned further toward the groove side than the blade edge, and a flank face positioned further toward the ridge portion side than the blade edge and jutting out in the forward direction as it retracts from the blade edge.

The invention concerns a method for the machining of toothed workpieces, in particular for the plastic reshaping of the tooth edges at the ends of the teeth through a meshing tooth engagement with a tool that is rotatable with free-running mobility about its axis of rotation, in particular a chamfering tool, wherein between the machining of one workpiece and the next, the tool is subjected to a traverse movement, whereby the tool is caused to perform a rotary movement so that, if a tool region (6a, 6b) that is designed for the initial engagement with the work pieces is not suitably positioned, it is brought into a position that is suitable for the machining of the next work piece, wherein the rotary movement is effected by coupling the rotary movement at least in sections to the traverse movement.