摘要:
The invention relates to a method for producing a toothed workpiece gear (11), wherein the workpiece gear (11) is clamped or fastened to a workpiece spindle and wherein a cutting tool (1) having cutting teeth (2) is clamped or fastened to a tool spindle. The tool spindle and the workpiece spindle are rotationally driven at a coupling ratio of the angles of rotation (φ2, φ1) thereof having a periodic non-linearity and/or at an axial distance (a) from each other that changes periodically, and the cutting teeth (2) machine left and right tooth flanks (13, 14) of the teeth (12, 12') of the workpiece gear (11) by means of left and right cutting edges (3, 4) in a chip-removing manner. In order to compensate radial run-out errors in particular, according to the invention, before the workpiece is machined, a radial run-out error (7) and/or a pitch error (8, 9) of the cutting tool (1) is determined and the flank line shape errors (18) of the right and/or left tooth flank (13, 14) resulting from the radial run-out error (7) and/or the pitch error (8, 9) are reduced by means of the periodic non-linearity of the coupling ratio and/or by means of the periodic change in the axial distance (a).
摘要:
The invention relates to a method for cutting teeth in workpieces (1), wherein in a roughing operation a blank substantially without teeth receives rough teeth using a first cutting tool (1) comprising cutting teeth (3), wherein teeth (1') are produced, the tooth width (B1) of which defined by the distance of the tooth faces (7, 7', 7") of said teeth is greater than the target dimension (B), wherein in a subsequent deburring operation, a chamfer (11) is incorporated into the end edge of the tooth faces, accompanied by the removal of an end burr, and wherein finally in a smoothing operation the tooth width (B) of the teeth (1') is brought to the target dimension (B) by machining the tooth faces (7, 7', 7"). In order to increase the effectiveness, it is proposed that in the roughing operation a roughing tool having roughing teeth (3) be used, wherein the roughing teeth have a roughing tooth height (4) that substantially corresponds to the target dimension of the tooth gap depth (8), and that in the smoothing operation a smoothing tool (12) having smoothing teeth (13) be used, wherein the smoothing tooth height (18) is less than the roughing tooth height (4), and the smoothing tooth width (15) is greater than the roughing tooth width (5).
摘要:
The invention relates to a method for producing a toothed workpiece wheel (7), the tooth root (11") of which adjoins an end face (12) of the workpiece wheel (7) with a chamfer (13) extending into the tooth flanks (11, 11") being formed, wherein the toothing of the workpiece wheel (7) is created by skiving with a gear-cutting tool (1) which has a first number (N) of cutting teeth (3) that each form cutting edges (4) and the rotation axis (2) of which is at a first crossed-axes angle (α) to the axis of rotation (8) of the workpiece wheel (7), with an infeed in a first infeed direction (V) parallel to the direction of extension of the tooth flanks (11, 11") to be produced and of the tooth root (11"). The chamfer (13) is created by skiving with a chamfering tool (14) which has a second number (N2) of cutting teeth (16) that each form cutting edges (17, 17', 17") and the rotation axis of which (15) is at a second crossed-axes angle (α2) to the axis (8) of the workpiece wheel (7), with an infeed in a second infeed direction (V2) parallel to the direction of extension of the chamfer (13) to be produced in the tooth root (11"). The invention also relates to an associated tool set. Main figure:
摘要:
The invention relates to a machine tool and a method for incorporating undercuts in left and right tooth flanks (4, 5) of teeth (3) of a toothed gear blank (1) by hob peeling, wherein the gear blank (1) and a cutting wheel (11) arranged at a crossed-axes angle to the gear blank (1), said cutting wheel comprising cutting teeth (13) with right and left cutting edges (14, 15), are continuously rotationally driven at a fixed speed ratio, the cutting teeth (13) mesh with the tooth flanks (4, 5) in a manner that removes shavings and the feed has at least one movement component in the direction of extension of the teeth (3). In order to be able to machine obliquely toothed workpieces with the method, it is proposed that in each of two consecutive machining steps the left tooth flanks (4) are machined by a differential and/or tangential feed component in the left rotational direction (L, TL) with the left cutting edges (14) of the cutting teeth (13) and right tooth flanks (5) are machined by a differential and/or tangential feed component in the right rotational direction (R, TR) with the right cutting edges (15) of the cutting teeth (13).
摘要:
The invention relates to a method and a device for cutting teeth into workpiece wheels (6) by means of skiving using a skiving wheel (1) that has cutting teeth (3), said device having a workpiece spindle for receiving the workpiece wheel (6) and a tool spindle, wherein the tool spindle and the workpiece spindle are positioned relative to each other at a crossed-axes angle (α), wherein the teeth are cut in a number of successive processing steps (S1 to S20), wherein, with the advancing of a component in the axial direction (10) of the workpiece spindle, the tooth interstices (7) between the teeth to be created are cut deeper step by step, wherein, between the processing steps, the axial spacing between the tool spindle and the workpiece spindle and a rotational angle (α1 to α19) of a fixed point, for example the center of the tooth interstice (7) situated between a first and a second tooth flank (9, 9'), relative to a fixed point on the cutting tooth (3), for example the center thereof, are changed in such a way that a first cutting edge portion (5") of the cutting tooth (3) acts on a tooth flank portion of the first tooth flank (9) which was created in a preceding processing step in such a way that there is at least reduced material removal relative to other cutting edge portions (5', 5"') of this cutting tooth (3).
摘要:
The invention relates to a device for generating teeth of workpieces (3) by hob peeling, having a workpiece spindle (1) that can be rotatably driven for accommodating the work wheel (3) to be geared, particularly internally, and having a tool spindle (2) that can be rotatably driven, said tool spindle (2) carrying a peeling wheel (4), which has a regular tooth pitch determined by the tooth spacing of the gearing of the workpiece (3). In order to improve the performance of the generic device and/or generic method, and to provide the peeling wheel suited therefor, it is proposed that the distance between at least some of the teeth of the peeling wheel (4) that are of identical shape corresponds to a multiple of the regular tooth pitch.