Method for producing tooth having defined angular position

Abstract

The invention relates to hard finishing of a component (100) having a first toothing (101) and a second toothing (102), a desired angular position of the first toothing (101) relative to the second toothing (102) being defined for the component (100). In order to reach the target angular position, the reference identification is carried out by comparing the measured actual angular distance with a predetermined pattern of the target angular position.

Description

Technical Field

[0001] The invention relates to a method, comprising the following method steps: providing a component, the component having a first toothing and a second toothing, wherein a rated angular position of the second toothing relative to the first toothing is defined for the component, and the rated angular position is specified as a rated angular distance between a reference tooth and / or a reference gap of the first toothing and a tooth and / or a gap of the second toothing; identifying the reference tooth and / or the reference gap of the first toothing; hard finishing the second toothing of the component, wherein the teeth of the second toothing are machined taking into account the positions of the reference teeth and / or the reference gap of the first toothing so as to produce an actual angular position of the second toothing relative to the first toothing according to the predetermined rated angular position. Background Art

[0002] Compact transmissions are used in electric vehicles in order to ensure the most efficient possible operation of the electric drive train. The transmission enables the electric motor to be operated in a low-consumption speed range.

[0003] In the case of a transmission shaft having, for example, two fixed wheels, the relative angular position between the toothings of the fixed wheels is often defined in order, for example, to enable a secure assembly.

[0004] Every relative positional relationship between two objects requires a geometric reference, with respect to which the relative position of these objects with respect to one another is defined. In the prior art, this reference is defined, for example, as a tooth of one of the two toothings for two toothings. Such a tooth can be referred to as a reference tooth. With respect to the reference tooth of this toothing, the angular position of the tooth of the respective other toothing is dimensioned and toleranced.

[0005] If the component is re-clamped after finishing the first toothing and before finishing the second toothing, the reference tooth in question must be identified after re-clamping the component and before starting finishing the second toothing, because only then can finishing the second toothing be carried out in such a way that the required tolerances for the relative position of the second toothing with respect to the reference tooth are observed.

[0006] In order to identify the reference tooth, it is known in the prior art that the reference tooth or the component has a marking by which the reference tooth can be identified. The marking can be, for example, a hole in the region of the component adjacent to the tooth section or, for example, a marking of the tooth head of the reference tooth itself, for example in the form of a colored marking, a depression, an adhesively applied marking or the like.

[0007] The generation of the mark constitutes an additional, non-productive manufacturing step, which increases the processing time overall. In addition, the gear processing machine for fine-machining the first toothing involved must be assigned a mechanism for generating the mark, which itself must be designed and provided for this purpose.

[0008] The use of such a marking is also disadvantageous in that the gear machining machine for producing the second toothing must have means for detecting such a marking, which means are provided for this purpose if possible in addition to any measuring or machining means of the gear machining machine itself. Summary of the invention

[0009] The invention is therefore based on the technical problem of specifying an efficient method for producing a component which comprises two toothings with a predetermined relative angular position.

[0010] The above technical problem is solved by the features of the independent claim. Further embodiments of the invention are given by the dependent claims and the following description.

[0011] According to the present invention, a method is proposed, which comprises the following method steps: providing a component, wherein the component has a first toothing and a second toothing, wherein a rated angular position of the second toothing relative to the first toothing is defined for the component, and the rated angular position is specified as a rated angular distance between a reference tooth and / or a reference gap of the first toothing and a tooth and / or a gap of the second toothing; identifying the reference tooth and / or the reference gap of the first toothing; and hard finishing the second toothing of the component, wherein the teeth of the second toothing are machined taking into account the positions of the reference teeth and / or the reference gap of the first toothing so as to produce an actual angular position of the second toothing relative to the first toothing according to the predetermined rated angular position. The method is characterized in that the reference teeth and / or reference gaps of the first toothing are identified by assigning the measured actual angular distance to a predetermined rated angular distance; wherein the rated angular distance is a predetermined angular distance of the teeth and / or gaps of the first toothing relative to the teeth and / or gaps of the second toothing based on a predetermined rated angular position; and the measured actual angular distance is the angular distance of the teeth and / or gaps of the first toothing relative to the teeth and / or gaps of the second toothing that exist on a provided component before hard finishing of the second toothing.

[0012] The invention is based in principle on the idea of ​​using the arrangement structure, in particular the pattern (pattern) generated by the predetermined component design structure of the relative spacing of the teeth and / or gaps of the two toothings in order to clearly identify the individual teeth and / or gaps, that is, in particular the reference teeth and / or reference gaps. This is because the angular distance predetermined by the component design structure should be recognizable on the component, in particular after the pre-toothing of the first and second toothings and after the fine machining of the first toothing and before the fine machining of the second toothing. In this way, in particular, by comparing the expected arrangement structure or the expected pattern (pattern) of the angular position from the component design structure with the arrangement structure or the measured pattern (pattern) on the component, the manufactured teeth and / or gaps can be assigned to the teeth and / or gaps according to the design structure in order to find the reference angular distance of the determined size and tolerance, that is, to identify the reference teeth and / or reference gaps.

[0013] In other words, according to the invention, the reference teeth and / or reference gaps can be identified, in particular, in such a way that the characteristic pattern of the setpoint angular distance is compared with the measured actual angular distance. Thus, according to the invention, separate markings for identifying the reference teeth and / or reference gaps can be omitted. Not only the generation of the markings but also the detection and the production devices required for this can thus be omitted compared to the prior art. The method according to the invention for identifying the reference teeth and / or reference gaps is therefore generally faster and more cost-effective than the prior art.

[0014] Thus, an efficient method for producing a component is proposed, which comprises two toothings with a predetermined relative angular position.

[0015] The first toothing can be designed as one of the following toothing types: spur toothing, helical toothing, herringbone toothing, double helical toothing, bevel toothing.

[0016] The second toothing can be designed as one of the following toothing types: spur toothing, helical toothing, herringbone toothing, double helical toothing, bevel toothing.

[0017] The first toothed portion may be an external toothed portion or an internal toothed portion.

[0018] The second toothed portion may be an external toothed portion or an internal toothed portion.

[0019] The first toothing may be a running toothing. The first toothing may be provided for converting a rotational speed and a torque by means of a rotational transmission in rolling contact with an associated further toothing meshing with the first toothing, in particular in a transmission.

[0020] The second toothing can be a running toothing. The second toothing can be provided for converting a rotational speed and a torque by means of a rotational transmission in rolling contact with an associated further toothing meshing with the first toothing, in particular in a transmission.

[0021] The setpoint angular distance may relate to the rotational axis of the component. In particular, the setpoint angular distance may be defined around the rotational axis, for example in an axial projection in a plane perpendicular to the rotational axis, and may be measured as an actual angular distance on the component accordingly.

[0022] The setpoint angular spacing can be defined with respect to the respective flank center of the relevant tooth of the first toothing and / or the second toothing, ie, for example, with respect to the nearest right flank and / or the nearest left flank.

[0023] The setpoint angular spacing can each be defined to a flank point of the tooth in question on the respective pitch circle of the first toothing and the second toothing.

[0024] It is understood that the tooth gap can also be used as a reference, wherein the actual position of the gap involved is in turn generated by the actual position of the manufactured side. Therefore, it is not important for the success of the method whether the gap or the tooth is used as a reference.

[0025] If the reference for the angular position is defined as a function of the gap of a first toothing relative to the gap of a second toothing, we can speak of a reference gap pair.

[0026] If the reference for the angular position is defined with respect to the teeth of the first toothing relative to the teeth of the second toothing, we can speak of a reference tooth pair.

[0027] The reference for the angular position can be defined based on the clearance of the teeth of the first toothing relative to the second toothing.

[0028] The reference for the angular position can be defined based on the gaps of the first toothing relative to the teeth of the second toothing.

[0029] In particular, exactly one tooth of the first toothing is defined as a reference tooth, or in particular exactly one gap of the first toothing is defined as a reference gap. The gap or the nominal angular distance of the tooth of the second toothing is dimensioned and toleranced relative to this reference tooth of the first toothing or relative to this reference gap of the first toothing in order to define the nominal angular position.

[0030] The tooth or the gap of the second toothing can be the tooth of the second toothing that is closest to the reference tooth or reference gap of the first toothing or the gap of the second toothing that is closest to the reference tooth or reference gap of the first toothing, or can be any other tooth of the second toothing or any other gap of the second toothing. This is because the definition of the set angular distance of the teeth or gaps of the second toothing with respect to the reference tooth or reference gap of the first toothing also defines the relative angular position of all other teeth and gaps of the second toothing with respect to the reference tooth of the first toothing and with respect to all other teeth and gaps of the first toothing due to the inherent symmetry of the first and second toothings, each of which is designed as a running toothing.

[0031] According to one design of the method, it can be provided that the rated angular distances of teeth and / or gaps, in particular the nearest teeth and / or gaps, are successively specified in a clockwise or counterclockwise manner in order to specify a rated pattern of the rated angular distances, and the actual angular distances of the nearest teeth are successively specified in a clockwise or counterclockwise manner in order to specify an actual pattern of the rated angular distances, wherein the identification of the reference tooth and / or reference gap is carried out based on a comparison of the actual pattern with the rated pattern.

[0032] It may be provided that a setpoint pattern is determined and / or evaluated for selecting the adjacent or nearest tooth or for all adjacent or nearest teeth. It may be provided that an actual pattern is determined and / or evaluated for selecting the adjacent or nearest tooth or for all adjacent or nearest teeth. Depending on the number of teeth of the first and second toothing, a partial comparison may already be sufficient for identifying the reference tooth. Preferably, a complete comparison is performed.

[0033] The comparison of the actual pattern with the setpoint pattern can be carried out according to mathematical methods, such as best fit or the like, in particular based on software. That is, the measured actual pattern (pattern) is placed on the predetermined setpoint pattern (pattern) in such a way that the deviation between the actual pattern (pattern) and the setpoint pattern (pattern) is as small as possible or minimized. In this way, a tooth-by-tooth assignment of the teeth of the measured actual pattern to the teeth of the setpoint pattern or a gap-by-gap assignment of the gaps of the measured actual pattern to the gaps of the setpoint pattern can be achieved in order to determine the reference teeth and / or reference gaps of the first toothing.

[0034] According to one embodiment of the method, it can be provided that, as a result of the assignment of the set angular distance to the measured actual angular distance, the reference tooth is a tooth of the first toothing of the component whose actual angular distance corresponds to the set angular distance according to the predetermined set angular position, in particular a comparison of the set angular distance with the actual angular distance is carried out for one or more further teeth and / or gaps of the first toothing in order to verify the identification of the reference tooth.

[0035] According to one design of the method, it can be provided that, as a result of the assignment of a set angular distance to a measured actual angular distance, the reference gap is a gap of a first toothing of a component, the actual angular distance of which corresponds to the set angular distance according to a predetermined set angular position, in particular a comparison of the set angular distance with the actual angular distance is carried out for one or more further teeth and / or gaps of the first toothing in order to verify the identification of the reference gap.

[0036] It can be provided that the first toothing of the provided component is already hard finished before the second toothing is hard finished and before the reference tooth and / or the reference recess is identified.

[0037] After hard finishing of the first toothing and before hard finishing of the second toothing, the component is re-clamped.

[0038] According to one embodiment of the method, it can be provided that the hard finishing of the first toothing is performed on a first machine tool and the hard finishing of the second toothing is performed on a second machine tool. Thus, the component can be removed from the workpiece spindle of the first machine tool after finishing the first toothing and then clamped on the workpiece spindle of the second machine tool in order to finish the second toothing by means of the second machine tool. Before finishing the second toothing by means of the second machine tool, the reference teeth and / or reference gaps of the first toothing are identified.

[0039] The hard finishing of the first toothing can be skiving or hard peeling or honing. Therefore, the first toothing can be processed in particular by means of a method that requires only a small axial overtravel and can be applied accordingly near the conflict structure, such as, for example, near the second toothing adjacent to the first toothing.

[0040] In particular, the first toothing can have a smaller diameter than the second toothing. According to an alternative embodiment, it can be provided that the first toothing has a larger diameter than the second toothing.

[0041] The first toothing can have a small axial distance relative to the second toothing, wherein the axial distance is in particular smaller than the tooth width of the first toothing and / or the tooth width of the second toothing, in particular smaller than half the tooth width of the first toothing and / or the half tooth width of the second toothing.

[0042] The hard finishing of the second toothing can be grinding, in particular indexed tumbling. The second toothing can be machined, for example, very efficiently by indexed tumbling, in particular for the case where the second toothing has a larger diameter than the first toothing and the first toothing therefore does not constitute a conflicting structure for machining the second toothing.

[0043] The first toothing can have a smaller number of teeth than the second toothing; according to an alternative embodiment, it can be provided that the first toothing has a greater number of teeth than the second toothing.

[0044] The first toothing can have a smaller pitch circle diameter than the second toothing. According to an alternative embodiment, it can be provided that the first toothing has a larger pitch circle diameter than the second toothing.

[0045] The number of teeth of the first toothing and the number of teeth of the second toothing can be mutually prime, wherein exactly one tooth and / or exactly one gap of the first toothing is defined as a reference tooth and / or a reference gap.

[0046] The number of teeth of the first tooth section and the number of teeth of the second tooth section can have the same factor, wherein the number of teeth suitable as reference teeth corresponds to the greatest common factor of the number of teeth of the first tooth section and the number of teeth of the second tooth section, and one of the teeth of the first tooth section suitable as reference tooth is defined as the reference tooth.

[0047] The number of teeth of the first tooth section and the number of teeth of the second tooth section can have the same factor, wherein the number of gaps suitable as reference gaps corresponds to the greatest common factor of the number of teeth of the first tooth section and the number of teeth of the second tooth section, and one of the gaps of the first tooth section suitable as reference gaps is defined as the reference gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The invention is further explained in detail below with reference to the accompanying drawings which illustrate exemplary embodiments. Each of them schematically shows:

[0049] Figure 1 A component having a first toothing and a second toothing is shown in a perspective view;

[0050] Figure 2 Shown in side view Figure 1 Components of

[0051] Figure 3As shown in the previous view Figure 1 Components of

[0052] Figure 4 Shown in accordance with Figure 3 A magnified view of detail Z;

[0053] Figure 5 The nominal angular position of a first toothing having 23 teeth and a second toothing having 68 teeth is shown;

[0054] Figure 6 The nominal angular position of a first toothing having 23 teeth and a second toothing having 62 teeth is shown;

[0055] Figure 7 The nominal angular position of a first toothing having 23 teeth and a second toothing having 66 teeth is shown;

[0056] Figure 8 The nominal angular position of a first toothing having 23 teeth and a second toothing having 61 teeth is shown;

[0057] Fig. 9 The nominal angular position of a first toothing having 24 teeth and a second toothing having 62 teeth is shown;

[0058] Fig.10 The nominal angular position of a first toothing having 24 teeth and a second toothing having 66 teeth is shown;

[0059] Fig.11 The nominal angular position of a first toothing having 24 teeth and a second toothing having 63 teeth is shown;

[0060] Fig.12 The actual angular positions of a first tooth section having 23 teeth and a second tooth section having 68 teeth are shown;

[0061] Fig.13 Show Fig.12 The actual angular position of Figure 5 Assignment of the rated angular position;

[0062] Fig.14 Show Fig.12 The actual angular position of Figure 5 Assignment of the rated angular position;

[0063] Fig.15 Show according to Fig.12 The actual angular position of Figure 5 Assignment of the nominal angular position to identify the reference tooth;

[0064] Fig.16 A flow chart of the method according to the invention is shown. DETAILED DESCRIPTION

[0065] Figure 1 The component 100 is shown. The component 100 has a first toothing 101 and a second toothing 102. The component 100 is made, in particular, of hardened steel.

[0066] The first tooth portion 101 and the second tooth portion 102 have an axial distance a, which is smaller than the width b2 of the second tooth portion 102 and also smaller than the width b1 of the first tooth portion 101 ( Figure 2 ).

[0067] In order to define the relative angular position of the first toothing 101 and the second toothing 102, it is sufficient to define, for example, a set angular distance ( ) of a reference tooth R01 for the first toothing 101 relative to a tooth of the second toothing 102. Figure 3 ). The relative angular position generally defines the angular position of the toothing 101 , 102 with respect to the rotation axis R of the component 100 .

[0068] In the present example, the case is discussed in which the first toothing 101 is hard-finished first and then the second toothing 102 is hard-finished. The reference tooth R01 is therefore formed on the first toothing 101, since the angular distance to the teeth of the second toothing 102 is dimensioned and toleranced with respect to this reference tooth R01 so that the relative setpoint angular position can be produced as accurately as possible to the actual angular position when the second toothing 102 is hard-finished.

[0069] It is understood that, according to an alternative embodiment, one tooth of the second toothing 102 can be determined as a reference tooth, with respect to which the first toothing is oriented. This method is particularly useful for the case where the second toothing is hard-finished before the first toothing and whereby the angular spacing of the teeth of the first toothing 101 is dimensioned and toleranced with respect to the reference tooth of the second toothing in order to specify the relative angular position.

[0070] It is understood that the gaps and / or teeth of the toothing can also be used to define the relative angular position, so that, for example, the angular distance between teeth, the angular distance between gaps, the angular distance between gaps and teeth, or the angular distance between teeth and gaps can be specified for defining the relative angular position of the first toothing and the second toothing, or vice versa. In principle, each of the gaps or teeth of the first toothing 101 and each of the gaps or teeth of the second toothing 102 can therefore be used for determining the dimensions and tolerances of the relative angular position between the first and second toothing, so as to clearly define the relative angular position.

[0071] As described above, in this example, one tooth of the first tooth section is defined as the reference tooth R01. For example, it can be determined that the angular distance between the side center 109 of the reference tooth R01 of the first tooth section 101 and the side center 110 of the tooth with index 0 of the second tooth section should be equal to 0. In this way, the first tooth section 101 is clearly described relative to the second tooth section. Figure 1-4The nominal angular position is shown in .

[0072] Alternatively, however, the angle 113 between the tooth with index "22" of the first toothing 101 and the tooth with index "63" of the second toothing 113 can also be dimensioned and toleranced in accordance with the set angular position in order to clearly define the set angular position, so that the tooth with index "22" of the first toothing 101 can be defined as the reference tooth. In this way, the first toothing 101 relative to the second toothing is clearly described in terms of the angle 113. Figure 1-4 The nominal angular position is shown in .

[0073] Figure 1-4 By way of example, a desired geometry to be produced is shown for a component 100 which is to be produced by means of the method according to the invention.

[0074] Figure 4 Shown in accordance with Figure 3 Detail Z of the first toothing 101 is enlarged. The teeth Z01 of the first toothing 101 are numbered counterclockwise in ascending order starting with index 0 up to index 22, so that the first toothing 101 has 23 teeth and 23 gaps in this example. Correspondingly, the gaps are also numbered in ascending order 0-22 with the numbers or indices provided in brackets. Similarly, the teeth of the second toothing 102 are also numbered counterclockwise in ascending order starting with the tooth with index 0 up to the tooth with index 64, so that the second toothing 102 has 65 teeth and 65 gaps in this example. In addition, the gaps of the toothing 102 are also numbered counterclockwise with the numbers 0-64 provided in brackets. In this example, exemplarily, the corresponding left side surfaces of the corresponding teeth numbered "0" of the first tooth portion 101 and the second tooth portion 102 should each be used as a reference, wherein the tooth numbered 0 of the first tooth portion 101 is the reference tooth R01, and the angular position of the tooth numbered 0 of the second tooth portion 102 is determined in size and tolerance relative to the reference tooth R01.

[0075] As mentioned above, a particular challenge is to automatically determine the reference tooth R01 between the individual production steps and after the component 100 has been re-clamped. Thus, for example, the first toothing 101 can be hard-finished on a first machine tool and the second toothing can be transferred to another machine tool for hard-finishing. After this re-clamping or during processing, the reference tooth R01 must be identified in order to be able to produce the relative angular position between the first toothing 101 and the second toothing 102 according to the setpoint angular position.

[0076] According to the invention, the reference tooth R01 is identified in such a way that the measured actual angular distance is assigned to a predetermined setpoint angular distance, which is a predetermined angular distance of the tooth Z01 and / or the gap L01 of the first toothing 101 relative to the tooth Z02 and / or the gap L02 of the second toothing 102 according to a predetermined setpoint angular position.

[0077] The measured actual angular distance is the angular distance of the teeth Z01 and / or the recesses L01 of the first toothing 101 existing on the provided component 100 before hard finishing of the second toothing 102 relative to the teeth Z02 and / or the recesses L02 of the second toothing 102 .

[0078] The invention utilizes the fact that a pattern of the relative angular positions of the adjacent teeth Z02 or the nearest teeth Z02 and / or gaps L02 of the second toothing 102 and the teeth Z01 and / or gaps L01 of the first toothing 101 is generated by a predetermined setpoint angular position.

[0079] exist Figure 3 1 shows a nominal angular distance 105 between a lateral point 103 on the pitch circle of the first toothing 101 and a lateral point 104 on the pitch circle of the second toothing 102 in axial projection. Also shown is a nominal angular distance 107 between a lateral point 106 on the pitch circle of the first toothing 101 and another adjacent lateral point 108 on the pitch circle of the second toothing 102. The lateral surface F considered adjacent or closest when viewed from the first toothing 101 is the closest lateral surface F of the second toothing 102 that is adjacent to the lateral surface F of the first toothing 101 when viewed counterclockwise about the rotation axis R.

[0080] It is clear that the angular distance 107 is smaller than the angular distance 105. In this way, the angular distance from gap to gap or the angular distance from tooth to tooth or the angular distance from tooth to gap to the respective nearest tooth Z02 of the second toothing 102 or the nearest gap L02 can be specified for each tooth of the toothing 101 or for each gap.

[0081] For a component 100 having a first toothing 101 and a second toothing 102 with a predetermined relative angular position, the desired angular distances of the nearest teeth and / or gaps can be specified sequentially in a clockwise or counterclockwise manner in order to specify a desired pattern of the desired angular distances.

[0082] Figure 5-11 Such a setpoint pattern is shown for different numbers of teeth of the first toothing 101 and the second toothing in order to illustrate the effect of the number of teeth on the resulting setpoint pattern.

[0083] Figure 5 An example of an angular distance or angular deviation is shown, in which the first toothing 101 has 23 teeth and the second toothing 102 has 68 teeth. The angular distance of the gap of the first toothing and the correspondingly nearest gap of the second toothing is written on the number of teeth of the first toothing 101. The numbering of the gaps is similar to Figure 4The set angular position of the first gap of the first toothing 101 and the first gap of the second toothing 102 is equal to 0, wherein the first gap of the first toothing is the reference gap, with respect to which the first gap of the second toothing is dimensioned and toleranced at an angular distance of 0. For the gap of the first toothing 101 with index 0, the angular deviation from the nearest gap of the second toothing 102 with index 0 is therefore 0.

[0084] Since the number of teeth of the first toothing 101 and the second toothing are relatively prime, a single angular deviation from the corresponding nearest gap of the second toothing is generated for each gap of the first toothing 101. That is, there is exactly one gap-to-gap angular deviation of 0, namely a reference gap with index 0 for the first toothing 101.

[0085] If now the actual mode of the current angular distance is measured for a given component after hard finishing of the first toothing 101 and before hard finishing of the second toothing 102, thus by comparing with the Figure 5 A comparison of the setpoint patterns of φ 104 and φ 105 makes it possible to identify the reference gap of first toothing 101 with index 0.

[0086] Fig.12 The measured actual pattern is shown by way of example and schematically, wherein the actual angular distances of the nearest teeth are successively assigned in a classified manner according to the direction of rotation of the nominal pattern in order to assign the actual pattern of the actual angular distances. The measured angular distances of the gaps of the first toothing and the corresponding nearest gaps of the second toothing are recorded at the number of teeth of the first toothing 101.

[0087] The index of the gap of the first tooth section 101 is Fig.12 In the example, the angular distance φ is first replaced by a question mark, because it is not clear at first by observing the actual pattern alone: ​​which gap should be assigned to the measured angular distance. Thus, the three angular distances with values ​​close to 0 can be seen, which can each belong to the reference gap when taking into account production tolerances.

[0088] The actual pattern is placed on the target pattern based on software, for example by "best fit", in order to detect the gap. Figuratively speaking, the actual pattern or the measured actual toothing is "rotated" relative to the target pattern or the target toothing until the patterns coincide with the smallest possible deviation.

[0089] exist Fig.13 In accordance with Fig.12 In this way, the reference gap with the index 0 can be clearly identified in the actual mode to enable reliable centering for hard finishing of the second toothing and the relative angular position of the toothing 101, 102.

[0090] Fig.14 and 15A complete comparison is explained, in which each gap of the first toothing 101 is clearly identified in the actual pattern of the measurement.

[0091] Since the overall situation is a relative position between the first toothing 101 and the second toothing 102, it is not important whether the setpoint angular distance is measured starting from the first toothing 101 relative to the second toothing 102 or vice versa. It is also not important whether the tooth flanks of the first toothing, the position of the recesses or the position of the teeth are used as references for defining the angular position, since the relative positions of these references can be converted to one another and only one measurable reference must be present on the first toothing.

[0092] Figure 6 An example of an angular distance or angular deviation is shown, in which the first toothing 101 has 23 teeth and the second toothing 102 has 62 teeth. The angular distance of the gap of the first toothing and the correspondingly closest gap of the second toothing is written on the number of teeth of the first toothing 101. The numbering of the gaps is similar to Figure 4 The set angular position of the first gap of the first toothing 101 and the first gap of the second toothing 102 is equal to 0, wherein the first gap of the first toothing is the reference gap, with respect to which the first gap of the second toothing is dimensioned and toleranced at an angular distance of 0. For the gap of the first toothing 101 with index 0, the angular deviation from the nearest gap of the second toothing 102 with index 0 is therefore 0.

[0093] Since the number of teeth of the first toothing 101 and the second toothing are relatively prime, a single angular deviation from the corresponding nearest gap of the second toothing is generated for each gap of the first toothing 101. That is, there is exactly one gap-to-gap angular deviation of 0, namely a reference gap with an index of 0 for the first toothing 101.

[0094] Figure 7 An example of an angular distance or angular deviation is shown, in which the first toothing 101 has 23 teeth and the second toothing 102 has 66 teeth. The angular distance of the gap of the first toothing and the correspondingly closest gap of the second toothing is written on the number of teeth of the first toothing 101. The numbering of the gaps is similar to Figure 4 The set angular position of the first gap of the first toothing 101 and the first gap of the second toothing 102 is equal to 0, wherein the first gap of the first toothing is the reference gap, with respect to which the first gap of the second toothing is dimensioned and toleranced at an angular distance of 0. For the gap of the first toothing 101 with index 0, the angular deviation from the nearest gap of the second toothing 102 with index 0 is therefore 0.

[0095] Since the number of teeth of the first toothing 101 and the second toothing are relatively prime, a single angular deviation from the corresponding nearest gap of the second toothing is generated for each gap of the first toothing 101. That is, there is exactly one gap-to-gap angular deviation of 0, namely a reference gap with an index of 0 for the first toothing 101.

[0096] Figure 8 An example of an angular distance or angular deviation is shown, in which the first toothing 101 has 23 teeth and the second toothing 102 has 61 teeth. The angular distance between the gap of the first toothing and the correspondingly closest gap of the second toothing is written on the number of teeth of the first toothing 101. The numbering of the gaps is similar to Figure 4 The set angular position of the first gap of the first toothing 101 and the first gap of the second toothing 102 is equal to 0, wherein the first gap of the first toothing is the reference gap, with respect to which the first gap of the second toothing is dimensioned and toleranced at an angular distance of 0. For the gap of the first toothing 101 with index 0, the angular deviation from the nearest gap of the second toothing 102 with index 0 is therefore 0.

[0097] Since the number of teeth of the first toothing 101 and the second toothing are relatively prime, a single angular deviation from the corresponding nearest gap of the second toothing is generated for each gap of the first toothing 101. That is, there is exactly one gap-to-gap angular deviation of 0, namely a reference gap with an index of 0 for the first toothing 101.

[0098] Fig. 9 An example of an angular distance or angular deviation is shown, in which the first toothing 101 has 24 teeth and the second toothing 102 has 62 teeth. The angular distance between the gap of the first toothing and the correspondingly closest gap of the second toothing is written on the number of teeth of the first toothing 101. The numbering of the gaps is similar to Figure 4 The set angular position of the first gap of the first toothing 101 and the first gap of the second toothing 102 is equal to 0, wherein the first gap of the first toothing is the reference gap, with respect to which the first gap of the second toothing is dimensioned and toleranced at an angular distance of 0. For the gap of the first toothing 101 with index 0, the angular deviation from the nearest gap of the second toothing 102 with index 0 is therefore 0.

[0099] Since the number of teeth of the first toothing 101 and the second toothing are not mutually prime, i.e. have the same factor, instead of a single angular deviation of the corresponding nearest gap of the second toothing for each gap of the first toothing 101, a repeating pattern is produced. That is, there are exactly two gap-to-gap angular deviations of 0, i.e. gaps with index 0 and index 12 for the first toothing 101. Each of these gaps of the first toothing 101 can therefore be used as a reference gap.

[0100] Fig.10 An example of an angular distance or angular deviation is shown, in which the first toothing 101 has 24 teeth and the second toothing 102 has 66 teeth. The angular distance between the gap of the first toothing and the correspondingly closest gap of the second toothing is written on the number of teeth of the first toothing 101. The numbering of the gaps is similar to Figure 4 The set angular position of the first gap of the first toothing 101 and the first gap of the second toothing 102 is equal to 0, wherein the first gap of the first toothing is the reference gap, with respect to which the first gap of the second toothing is dimensioned and toleranced at an angular distance of 0. For the gap of the first toothing 101 with index 0, the angular deviation from the nearest gap of the second toothing 102 with index 0 is therefore 0.

[0101] Since the number of teeth of the first toothing 101 and the second toothing are not mutually prime, i.e. have the same factors, instead of a single angular deviation of the corresponding nearest gap of the second toothing for each gap of the first toothing 101, a repeating pattern is generated. That is, there are exactly six gap-to-gap angular deviations of 0, i.e. gaps with indices 0, 4, 8, 12, 16, 20 for the first toothing 101. Each of these gaps can therefore be used as a reference gap.

[0102] Fig.11 An example of an angular distance or angular deviation is shown, in which the first toothing 101 has 24 teeth and the second toothing 102 has 63 teeth. The angular distance of the gap of the first toothing and the correspondingly closest gap of the second toothing is written on the number of teeth of the first toothing 101. The numbering of the gaps is similar to Figure 4 The set angular position of the first gap of the first toothing 101 and the first gap of the second toothing 102 is equal to 0, wherein the first gap of the first toothing is the reference gap, with respect to which the first gap of the second toothing is dimensioned and toleranced at an angular distance of 0. For the gap of the first toothing 101 with index 0, the angular deviation from the nearest gap of the second toothing 102 with index 0 is therefore 0.

[0103] Since the number of teeth of the first toothing 101 and the second toothing are not mutually prime, i.e. have the same factors, instead of a single angular deviation of the corresponding nearest gap of the second toothing for each gap of the first toothing 101, a repetitive pattern is generated. That is, there are gap-to-gap angular deviations of exactly three times that are 0, i.e. gaps with indices 0, 8, and 16 for the first toothing 101. Each of these gaps can therefore be used as a reference gap.

[0104] In this example, the first gap in each case is used as a reference. This approach is only used to simplify and intuitively illustrate the method according to the invention. However, it is clear that any other gap of the first toothing can also be used as a reference.

[0105] In general, therefore, according to the present invention, a method can be provided, comprising the following method steps:

[0106] (A) A component 100 is provided, wherein the component 100 has a first tooth portion 101 and a second tooth portion 102, and a rated angular position of the second tooth portion 102 relative to the first tooth portion 101 is defined for the component 100, and the rated angular position is specified as a rated angular distance between a reference tooth R01 and / or a reference gap 0 of the first tooth portion 101 and a tooth R02 and / or a gap 0 of the second tooth portion 102.

[0107] (B) identifying a reference tooth R01 and / or a reference gap 0 of the first toothing 101, wherein the reference tooth R01 and / or the reference gap 0 of the first toothing 101 is identified in that a measured actual angular distance is assigned to a predetermined setpoint angular distance; the setpoint angular distance is a predetermined angular distance of the teeth and / or gaps of the first toothing 101 relative to the teeth and / or gaps of the second toothing 102 according to a predetermined setpoint angular position; and the measured actual angular distance is an angular distance of the teeth and / or gaps of the first toothing 101 relative to the teeth and / or gaps of the second toothing 102 existing on the provided component 100 before hard finishing of the second toothing 102;

[0108] (C) A second toothing 102 of a hard-finished component 100 , wherein the teeth of the second toothing 102 are machined taking into account the position of a reference tooth R01 and / or a reference gap 0 of the first toothing 101 , so as to produce an actual angular position of the second toothing 102 relative to the first toothing 101 according to a predetermined nominal angular position.

[0109] Here, the first toothing 101 of the provided component 100 is already hard-finished before hard-finishing the second toothing 102 and before identifying the reference teeth and / or reference gaps. The component 100 is re-clamped after hard-finishing the first toothing 101 and before hard-finishing the second toothing 102. The hard-finishing of the first toothing 101 is performed on a first machine tool and the hard-finishing of the second toothing 102 is performed on a second machine tool.

[0110] If the reference for the angular position is defined as a function of the gap of a first toothing relative to the gap of a second toothing, we can speak of a reference gap pair.

[0111] If the reference for the angular position is defined with respect to the teeth of the first toothing relative to the teeth of the second toothing, we can speak of a reference tooth pair. Reference numerals list

[0112] 100 components

[0113] 101 first tooth

[0114] 102 Second tooth

[0115] 103 side points

[0116] 104 side points

[0117] 105 angle deviation

[0118] 106 side points

[0119] 107 Angular deviation

[0120] 108 side points

[0121] 109 side points

[0122] 111 side points

[0123] 112 side points

[0124] 113 angle deviation

[0125] F side

[0126] RRotation axis

[0127] R01 reference gear

[0128] R02 reference gear

[0129] a Spacing

[0130] b1 width

[0131] b2 width

[0132] (A) Methods and steps

[0133] (B) Methods and steps

[0134] (C) Methods and steps

Claims

1. A method comprising the following steps: - providing a component (100) having a first toothing (101) and a second toothing (102), wherein a nominal angular position of the second toothing (102) relative to the first toothing (101) is defined for the component (100), and the nominal angular position is specified as a nominal angular distance between a reference tooth (R01) and / or a reference gap (0) of the first toothing (101) and a tooth (R02) and / or a gap (0) of the second toothing (102); - identifying a reference tooth (R01) and / or a reference gap (0) of the first toothing (101); - hard finishing the second toothing (102) of the component (100), machining the teeth of the second toothing (102) taking into account the position of the reference teeth (R01) and / or the reference gap (0) of the first toothing (101), so as to produce an actual angular position of the second toothing (102) relative to the first toothing (101) according to a predetermined setpoint angular position; It is characterized in that - identifying a reference tooth (R01) and / or a reference gap (0) of the first toothing (101) by assigning a measured actual angular distance to a predetermined setpoint angular distance; - the rated angular distance is a predetermined angular distance of the teeth and / or gaps of the first toothing (101) relative to the teeth and / or gaps of the second toothing (102) according to a predetermined rated angular position; and The measured actual angular distance is the angular distance of the teeth and / or spaces of the first toothing (101) relative to the teeth and / or spaces of the second toothing (102) existing on the provided component (100) before hard finishing of the second toothing (102).

2. The method according to claim 1, characterized in that - successively specifying the setpoint angular distances of the teeth and / or gaps, in particular the nearest teeth and / or gaps, in a classified manner in a clockwise or counterclockwise direction in order to specify a setpoint pattern of the setpoint angular distances; - successively specifying the actual angular distances of the nearest teeth in a classified manner clockwise or counterclockwise direction in order to specify the actual pattern of said actual angular distances; The reference tooth (R01) and / or the reference gap (0) is identified based on a comparison of the actual pattern with a setpoint pattern.

3. The method according to claim 2, characterized in that The actual pattern is compared with the desired pattern using mathematical methods, such as, for example, best fit or the like, in particular based on software.

4. The method according to claim 2 or 3, characterized in that: As a result of the assignment of the setpoint angular distance to the measured actual angular distance, the reference tooth is a tooth of the first toothing of the component, the actual angular distance of which corresponds to the setpoint angular distance according to the predetermined setpoint angular position, in particular a comparison of the setpoint angular distance with the actual angular distance is carried out for one or more further teeth and / or recesses of the first toothing in order to verify the identification of the reference tooth; and / or As a result of the assignment of a set angular distance to a measured actual angular distance, the reference gap is a gap of the first toothing of the component whose actual angular distance corresponds to the set angular distance according to a predetermined set angular position, in particular a comparison of the set angular distance with the actual angular distance is performed for one or more further teeth and / or gaps of the first toothing in order to verify the identification of the reference gap.

5. The method according to any one of the preceding claims, characterized in that The first toothing (101) of the provided component (100) has been hard finished before the second toothing (102) is hard finished and before the reference tooth (R01) and / or the reference gap (0) are identified.

6. The method according to claim 5, characterized in that After hard finishing the first toothing (101) and before hard finishing the second toothing (102), the component (100) is re-clamped. and / or The first toothing (101) is hard-finished on a first machine tool and the second toothing (102) is hard-finished on a second machine tool.

7. The method according to any one of the preceding claims, characterized in that The hard finishing of the first tooth portion (101) is scraping or hard peeling or honing, and / or the hard finishing of the second tooth portion (102) is grinding, in particular indexed tumbling.

8. The method according to any one of the preceding claims, characterized in that The first tooth portion (101) has a smaller number of teeth than the second tooth portion (102), and / or The first tooth portion (101) has a smaller pitch circle diameter than the second tooth portion (102).

9. The method according to any one of the preceding claims, characterized in that The number of teeth of the first tooth section (101) and the number of teeth of the second tooth section (102) are mutually prime, and exactly one tooth and / or exactly one gap of the first tooth section (101) is defined as a reference tooth and / or a reference gap.

10. The method according to any one of the preceding claims, characterized in that The number of teeth of the first tooth section (101) and the number of teeth of the second tooth section (102) have the same factor, the number of teeth suitable as reference teeth corresponds to the greatest common factor of the number of teeth of the first tooth section (101) and the number of teeth of the second tooth section (102), and one of the teeth of the first tooth section (101) suitable as reference teeth is defined as the reference tooth, and / or The number of teeth of the first tooth section (101) and the number of teeth of the second tooth section (102) have the same factor, the number of gaps suitable as reference gaps corresponds to the greatest common factor for the number of teeth of the first tooth section (101) and the number of teeth of the second tooth section (102), and one of the gaps of the first tooth section (101) suitable as reference gaps is defined as a reference gap.

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