Detection tool

Abstract

The utility model provides a testing fixture, which comprises a testing bench, a first circular groove and angle scale marks are arranged on the upper surface of the testing bench; the at least one rotor positioning disc is provided with an indicating line and a positioning pin group, and one of the positioning pin groups is a reference N-pole positioning pin; the rotor positioning disc is placed in the first circular groove and can rotate relative to the detection table; the clutch profiling tool is movably arranged above the rotor positioning disc in the vertical direction; a current to-be-detected rotor is placed on the rotor positioning disc according to the mode that a reference N-pole process hole of the current to-be-detected rotor is aligned with a reference N-pole positioning pin on the rotor positioning disc, the clutch profiling tool is lowered, the current detected rotor is rotated until an encoder clutch of the current detected rotor enters the clutch profiling tool, and the rotor positioning disc reaches a detection position; under the condition that the rotor positioning disc is located at the detection position, the installation angle deviation of the encoder clutch can be obtained according to the scale value corresponding to the indication line on the angle scale line.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor production, in particular to a testing fixture. BACKGROUND

[0002] When the clutch assembly of a motor encoder is installed, it is necessary to ensure that the installation angle of the clutch assembly relative to the magnetic pole of the rotor magnetic steel is within the preset tolerance range. In the prior art, there are mainly two methods for detecting the installation angle, but both have limitations. The first method is to use a protractor for visual detection by manual operation. However, due to the angle difference between different height surfaces, it is extremely difficult to operate in practice, and it is difficult to ensure the accuracy of the measurement. The second method is to verify the installation angle of the encoder clutch through motor function test. However, this method needs to assemble the motor into a complete machine for testing. Once the test result is not up to standard, it means that some motor parts need to be scrapped for repair, and this method cannot accurately reflect the actual installation angle. SUMMARY

[0003] Therefore, the testing fixture provided by the present application converts the included angle between the encoder clutch and the magnetic pole of the rotor magnetic steel, which is originally located on different horizontal planes, into angle reading on the same horizontal plane, thereby significantly improving the detection accuracy.

[0004] The present application provides a testing fixture for detecting the installation angle deviation of an encoder clutch, which comprises:

[0005] a detection table, the upper surface of which is provided with a first circular groove, and an angle scale line is arranged along the first circular groove;

[0006] at least one rotor positioning disc, each rotor to be detected is matched with one rotor positioning disc; the upper surface of each rotor positioning disc is provided with an indication line and a positioning pin group, one of the positioning pin groups is a reference N-pole positioning pin; the rotor positioning disc is placed in the first circular groove and can rotate relative to the detection table;

[0007] an encoder profile tool, which is movably arranged above the rotor positioning disc in the vertical direction;

[0008] the rotor to be detected is placed on the rotor positioning disc in a manner that the reference N-pole process hole of the rotor to be detected is aligned with the reference N-pole positioning pin on the rotor positioning disc, the encoder profile tool is lowered, and the rotor to be detected is rotated until the encoder clutch of the rotor to be detected enters the encoder profile tool, and the rotor positioning disc reaches the detection position;

[0009] When the rotor positioning disc is at the detection position, the installation angle deviation of the encoder clutch can be obtained according to the scale value of the indication line on the angle scale line.

[0010] Optionally, the upper surface of the rotor positioning disc is flush with the upper surface of the detection table.

[0011] Optionally, the positioning pin group comprises two positioning pins, and the center line of the two positioning pins passes through the center axis of the rotor positioning disc.

[0012] Optionally, the angle scale comprises a 0 scale and an angle positive tolerance group and an angle negative tolerance group symmetrically arranged along the 0 scale; and,

[0013] The included angle α between the indication line and the reference N-pole of the rotor positioning disc is equal to γ-β, wherein β is used to represent the included angle between the clutch center line of the clutch profiling tool and the 0 scale, and γ is used to represent the theoretical value of the installation angle of the encoder clutch of the rotor corresponding to the rotor positioning disc, wherein the installation angle of the encoder clutch is the included angle between the encoder clutch center line of the rotor and the reference N-pole of the rotor.

[0014] Optionally, the detection table is further provided with an N-pole identification group, and each N-pole identification group comprises at least one N-pole indication mark of a rotor, and the N-pole indication mark comprises a reference N-pole indication line and the corresponding rotor model.

[0015] Optionally, the detection tool further comprises a plurality of calibration pieces, and each calibration piece is matched with a rotor to be detected.

[0016] Each calibration piece comprises, in sequence along the axial direction thereof, a base plate, a center axis and a simulation clutch, wherein the base plate is provided with a simulation hole group and a reference line, the simulation hole group corresponds to the process hole of the rotor corresponding to the calibration piece and matched with the positioning pin group, and the simulation clutch is consistent with the encoder clutch of the rotor corresponding to the calibration piece.

[0017] The included angle α' between the reference line and the reference N-pole of the calibration piece is equal to γ-β, wherein β is used to represent the included angle between the clutch center line of the clutch profiling tool and the 0 scale, and γ is used to represent the theoretical value of the installation angle of the encoder clutch of the rotor corresponding to the calibration piece.

[0018] The calibration piece is placed on the rotor positioning disc in a manner that the reference N-pole simulation hole of the calibration piece is aligned with the reference N-pole positioning pin on the rotor positioning disc, the clutch profiling tool is lowered, and the calibration piece is rotated until the simulation clutch of the calibration piece enters the clutch profiling tool, and the rotor positioning disc reaches the calibration position.

[0019] When the reference line is aligned with the indication line and the indication line points to the 0 scale, the rotor positioning disc is calibrated and qualified when the rotor positioning disc is in the calibration position.

[0020] Optionally, the reference line extends radially from the upper surface of the base to the side surface thereof.

[0021] Optionally, the gauge further comprises a vertical movement assembly, the vertical movement assembly comprising a fixed part and a sliding part, and the clutch profiling tool is detachably connected to the sliding part.

[0022] Optionally, the gauge further comprises a base, and the fixed part and the detection table are fixedly connected to the base, respectively.

[0023] Optionally, the fixed part and the detection table are arranged along a first horizontal direction, and both ends of the base along a second horizontal direction are further provided with handles, the second horizontal direction being perpendicular to the first horizontal direction.

[0024] According to the above technical solution, the gauge of the present application converts the detection of the included angle between the clutch of the encoder and the magnetic pole of the rotor magnetic steel, which is originally located on different horizontal planes, into the angle reading on the same horizontal plane, thereby significantly improving the detection accuracy, effectively avoiding product quality risks caused by mis-detection, and reducing the scrap rate. The gauge of the present application can quickly replace the rotor positioning disc, so that it can be adapted to various types of motors. When the production line needs to change the motor type, the operator only needs to remove the rotor positioning disc from the detection table and replace it with a matching rotor positioning disc. The entire model changing process does not require complex fixing methods, is convenient to operate, and the model changing time can be controlled within 1 minute, thereby greatly improving the flexibility and efficiency of detection. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 1 is a schematic view of a gauge according to an exemplary embodiment of the present application.

[0026] Figure 2 FIG. 2 is a partial schematic view of a gauge according to an exemplary embodiment of the present application.

[0027] Figure 3 FIG. 3 is a top view of a gauge according to an exemplary embodiment of the present application.

[0028] Figure 4 FIG. 4 is a schematic view of the installation angle detection of the encoder and the force of a rotor using a gauge according to an exemplary embodiment of the present application.

[0029] Figure 5 FIG. 5 is a schematic view of a calibration piece according to an exemplary embodiment of the present application.

[0030] Figure 6 FIG. 6 is a schematic view of the calibration of a rotor positioning disc using a calibration piece.

[0031] Figure 7 FIG. 7 is a schematic view of a rotor.

[0032] Figure 8 A schematic view of a clutch profiling tool according to an exemplary embodiment of the present application.

[0033] List of reference signs:

[0034] The following drawings are included to provide a better understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0035] 10: detection table;

[0036] 11: first circular groove;

[0037] 12: angle scale;

[0038] 121: 0 scale;

[0039] 131: reference N-pole indicating line;

[0040] 132: rotor model;

[0041] 14: hand recess;

[0042] 15: first circular through hole;

[0043] 20: rotor positioning disc;

[0044] 21: indicating line;

[0045] 22: positioning pin group;

[0046] 221: reference N-pole positioning pin;

[0047] 222: second positioning pin;

[0048] 23: recess;

[0049] 30: clutch profiling tool;

[0050] 40: calibration piece;

[0051] 41: base plate;

[0052] 411: simulation hole group;

[0053] 4111: reference N-pole simulation hole;

[0054] 4112: second simulation hole;

[0055] 412: reference line;

[0056] 42: center shaft;

[0057] 43: simulation clutch;

[0058] 50: vertical movement assembly;

[0059] 51: fixed part;

[0060] 52: sliding part;

[0061] 60: base;

[0062] 61: handle;

[0063] 70: detection table support assembly;

[0064] 71: support column;

[0065] 80: rotor;

[0066] 81: encoder clutch;

[0067] 901: encoder clutch center line of the rotor;

[0068] 902: reference N-pole of the rotor;

[0069] 903: clutch center line of the clutch profiling tool;

[0070] 904: reference N-pole of the calibration piece;

[0071] 905: clutch center line of the calibration piece; DETAILED DESCRIPTION

[0072] In order to make the person skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art should belong to the scope of protection of the embodiments of the present application.

[0073] In this document, "schematic" means "to serve as an example, an instance, or an illustration", and any illustration, embodiment described as "schematic" in this document should not be interpreted as a more preferred or more advantageous technical solution.

[0074] In this document, "first", "second", and the like do not represent their importance or order, etc., but are only used to represent the difference from each other, for the description of the file.

[0075] In order to make the figure simple, only the parts related to the present application are schematically shown in each figure, which does not represent the actual structure of the product.

[0076] When the clutch assembly of the motor encoder is installed, it is necessary to ensure that the installation angle of the clutch assembly relative to the magnetic pole of the rotor magnetic steel is kept within the preset tolerance range. Figure 7is a schematic view of a rotor. From Figure 7 It is known that the installation angle γ of the encoder clutch 81 of the rotor 80 is the angle between the encoder clutch center line 901 and the reference N-pole 902, wherein the reference N-pole is the N-pole center closest to the encoder clutch center line in the counterclockwise direction of the encoder clutch center line. In the prior art, there are mainly two methods to detect this installation angle, but both have limitations. The first method is to use a protractor to visually detect manually, however, due to the angle difference between different height surfaces, it is extremely difficult to operate in practice, and it is difficult to ensure the accuracy of the measurement. The second method is to verify the installation angle of the encoder clutch through motor function test, but this method needs to assemble the motor into a complete machine for testing. Once the test result is not up to standard, it means that some motor parts need to be scrapped for repair, and this method cannot accurately reflect the actual installation angle.

[0077] The embodiments provided by the present application will be described in detail below with reference to the accompanying drawings.

[0078] The present application provides a gauge for detecting the installation angle deviation of the encoder clutch 81, which comprises a detection table 10, at least one rotor positioning disc 20 and an encoder clutch profiling tool 30, wherein each rotor to be detected is matched with a rotor positioning disc 20. As shown in Figure 1As shown, the upper surface of the detection table 10 is provided with a first circular groove 11 for accommodating the rotor positioning disc 20 and allowing the rotor positioning disc 20 to rotate relative to the detection table 10. On the upper surface of the detection table 10, along the edge of the first circular groove 11, there is provided an angle scale 12 coaxial with the first circular groove 11. The upper surface of each rotor positioning disc 20 is provided with an index line 21 and a positioning pin group 22. The positioning pin group 22 is used to circumferentially fix the current rotor to be detected to the rotor positioning disc 20, preventing relative displacement between the two during detection. The positioning pin group 22 includes at least two positioning pins, one of which is a reference N-pole positioning pin 221 that matches the reference N-pole process hole on the rotor. Since the line connecting the reference N-pole process hole on the rotor and the center of the rotor is the reference N-pole of the rotor, the reference N-pole positioning pin 221 can indicate the reference N-pole of the rotor positioning disc 20, which is the line connecting the reference N-pole positioning pin 221 and the center of the rotor positioning disc 20. The reference N-pole positioning pin 221 of the rotor positioning disc 20 matches the reference N-pole process hole of the rotor, ensuring the accuracy of the polarity of the rotor during detection. The clutch profiling tool 30 is movably arranged above the rotor positioning disc 20 in the vertical direction. The clutch profiling tool 30 can accurately fit the shape and size of the encoder clutch 81 of the rotor, and after the encoder clutch 81 of the current rotor to be detected enters the clutch profiling tool 30, the clutch profiling tool 30 restricts the rotation of the rotor 80 and the rotor positioning disc 20, thereby accurately positioning the angle in the circumferential direction of the rotor.

[0079] The current rotor to be detected is placed on the rotor positioning disc 20 in a manner that its reference N-pole process hole is aligned with the reference N-pole positioning pin 221 on the rotor positioning disc 20, to ensure that the reference N-pole of the rotor is aligned with the reference N-pole of the rotor positioning disc 20. After the rotor is correctly placed, the clutch profiling tool 30 is lowered and the current rotor to be detected is rotated, and by rotating the rotor, the rotor drives the rotor positioning disc 20 to rotate. Until the encoder clutch 81 of the current rotor to be detected enters the clutch profiling tool 30, the rotor positioning disc 20 reaches the detection position, as shown. Figure 4 In the case where the rotor positioning disc 20 is at the detection position, the installation angle deviation of the encoder clutch 81 can be obtained according to the scale value of the index line 21 on the angle scale 12.

[0080] The detection tool provided in the embodiment converts the angle between the encoder clutch and the rotor magnet pole originally located on different horizontal planes into angle reading on the same horizontal plane, significantly improving the detection accuracy, effectively avoiding product quality risks caused by mis-detection, and reducing scrap. The detection tool of the present application can quickly replace the rotor positioning disc, so that it can adapt to various types of motors. As Figure 2As shown, the rotor positioning disc of the present application is directly placed in the circular groove of the detection table 10. When the production line needs to change the motor model, the operator only needs to take out the rotor positioning disc from the detection table 10 and replace it with a matching rotor positioning disc. The whole model changing process does not need complex fixing method, the operation is convenient, the model changing time can be controlled within 1 minute, which greatly improves the flexibility and efficiency of detection.

[0081] In one embodiment thereof, as shown in Figure 2 The upper surface of the rotor positioning disc 20 is flush with the upper surface of the detection table 10, so that the indicating line and the angle scale line 12 are in the same plane, so that the reading can be more accurately read.

[0082] In one embodiment thereof, the angle scale line 12 includes a 0 scale line 121 and an angle positive tolerance group and an angle negative tolerance group arranged symmetrically along the 0 scale line 121, as shown in Figure 2 and Figure 3 The angle α between the indicating line 21 and the reference N-pole of the rotor positioning disc 20 is equal to γ-β, wherein β represents the angle between the clutch center line 903 of the clutch profiling tool 30 and the 0 scale line 121, and γ represents the theoretical value of the installation angle of the encoder clutch 81 of the rotor corresponding to the rotor positioning disc 20, i.e. the angle between the encoder clutch center line 901 of the rotor and the reference N-pole 902 of the rotor.

[0083] For example, in a specific embodiment based on this embodiment, the angle β between the clutch center line 903 of the clutch profiling tool 30 and the 0 scale line 121 is 4.5°, the installation angle γ of the clutch of the 01 rotor is 4.5°, and the angle α between the indicating line 21 of the rotor positioning disc 20 for detecting the 01 rotor and the reference N-pole of the rotor positioning disc 20 is 0°.

[0084] The installation angle γ of the clutch of the 02 rotor is 40°, and the angle α between the indicating line of the rotor positioning disc 20 for detecting the 02 rotor and the reference N-pole of the rotor positioning disc 20 is 4.5°-40°=-35.5°.

[0085] In the embodiment, the rotor positioning disc is located at the detection position, and the installation angle of the encoder is equal to the theoretical value, so that the indication line points to the zero scale line on the angle scale line. In the actual detection process, if the installation angle of the encoder deviates from the theoretical value, the indication line will indicate a non-zero reading on the angle scale line. The reading directly represents the deviation between the actual installation angle of the clutch and the theoretical value. The detection personnel can directly determine whether the installation angle deviation of the clutch meets the tolerance requirement on the drawing according to the reading of the indication line on the angle scale line. If the reading is within the tolerance range, it indicates that the installation angle of the clutch is qualified; if the reading exceeds the tolerance range, rework is required. In the embodiment, the reading of the indication line on the angle scale line is the deviation between the actual installation angle of the clutch and the theoretical value. The embodiment realizes intuitive, accurate and efficient detection of the installation angle deviation of the encoder clutch.

[0086] In one embodiment, the positioning pin group 22 includes two positioning pins, a reference N-pole positioning pin 221 and a second positioning pin 222, as shown in Figure 2 and Figure 3 The center line of the two positioning pins passes through the center shaft 42 of the rotor positioning disc 20, so that the center line of the two positioning pins is the reference N-pole of the rotor positioning disc 20.

[0087] In one embodiment, the detection table 10 is also provided with an N-pole identification group, which includes at least an N-pole indication mark of a rotor. The N-pole indication mark includes a reference N-pole indication line 131 and a corresponding rotor model 132.

[0088] To ensure that the rotor is correctly placed on the rotor positioning disc, the reference N-pole of the rotor needs to be aligned with the reference N-pole of the rotor positioning disc. The N-pole identification group can provide the reference N-pole indication mark of the rotor positioning disc, which is convenient for the operator to accurately identify and place. Each N-pole indication mark is composed of a reference N-pole indication line and a corresponding rotor model. The reference N-pole indication line is used to indicate the position of the reference N-pole, and the rotor model provides information about the type of the rotor, so that the operator can quickly identify.

[0089] In one embodiment, the detection tool also includes a plurality of calibration pieces 40, each of which is matched with a rotor to be detected. That is, for each type of rotor, there is a rotor positioning disc 20 matched therewith and a calibration piece 40 matched therewith. The calibration piece 40 is used to calibrate the rotor positioning disc 20 to ensure the accuracy of the position of the positioning pin group 22 and the reference N-pole center of the rotor positioning disc 20. Only the rotor positioning disc 20 that passes the calibration is allowed to detect the corresponding type of rotor. As shown in Figure 5As shown, each calibration component 40 sequentially includes a chassis 41, a central shaft 42, and a simulated clutch 43 along its axial direction. The chassis 41 is provided with a simulated hole group 411 and a reference line 412. The simulated hole group 411 corresponds to the process holes of the rotor corresponding to the calibration component 40 that match the positioning pin group 22. For example, in Figure 2 and Figure 3 In the illustrated embodiment, the locating pin group 22 includes a reference N-pole locating pin 221 and a second locating pin 222. Correspondingly, the simulated hole group 411 includes a reference N-pole simulated hole 4111 and a second simulated hole 4112. Figure 5 and Figure 6 As shown, the center line connecting the reference N-pole simulation hole 4111 and the second simulation hole 4112 passes through the center of the chassis 41. The center line connecting the reference N-pole simulation hole 4111 and the second simulation hole 4112 is the reference N-pole of the calibration component 40. The installation angle and size of the simulation clutch 43 of the calibration component 40 and the encoder clutch 81 of the rotor corresponding to the calibration component 40 are completely consistent. The angle α' between the reference line 412 and the reference N-pole of the calibration component 40 is γ-β, where β is used to characterize the angle between the clutch center line 903 of the clutch contour tooling 30 and the 0 scale line 121, and γ is used to characterize the theoretical value of the installation angle of the encoder of the rotor corresponding to the calibration component 40, that is, the angle between the encoder clutch center line 901 of the rotor and the reference N-pole 902 of the rotor.

[0090] The calibration piece 40 is placed on the rotor positioning disk 20 with its reference N-pole simulation hole 4111 aligned with the reference N-pole positioning pin 221 on the rotor positioning disk 20. After the calibration piece 40 is correctly placed, the clutch contour tool 30 is lowered and the calibration piece is rotated until the encoder clutch 81 of the calibration piece 40 enters the clutch contour tool 30, and the rotor positioning disk 20 reaches the calibration position. When the rotor positioning disk 20 is in the calibration position, and the reference line 412 is aligned with the indicator line 21 and the indicator line 21 points to the 0 scale line 121, the rotor positioning disk 20 is considered calibrated successfully. Figure 6 As shown.

[0091] In a specific implementation based on the above embodiments, such as Figure 5 and Figure 6 As shown, the baseline 412 extends radially from the upper surface of the chassis 41 to its side surface. This facilitates observation by the operator, but is not limited to this.

[0092] In one embodiment, the gauge further includes a vertical motion assembly 50, which includes a fixed portion 51 and a sliding portion 52. The clutch contouring fixture 30 is detachably connected to the sliding portion 52. Figure 1The clutch profiling tool 30 is moved in the vertical direction, but is not limited thereto.

[0093] In a specific embodiment based on the above examples, the fixed part 51 and the detection table 10 are fixedly connected with the base 60, as shown in Figure 1

[0094] Further, as shown in Figure 1 The fixed part 51 and the detection table 10 are arranged in a first horizontal direction, and the base 60 is provided with handles 61 at both ends in a second horizontal direction perpendicular to the first horizontal direction. This facilitates the carrying of the gauge, but is not limited thereto.

[0095] Further, the handles 61 can be arranged on the side surface of the base 60, so as not to occupy the space on the upper surface of the base 60.

[0096] In a specific embodiment based on the above examples, the gauge further comprises a detection table 10 support assembly 70, one end of the detection table 10 support assembly 70 in the vertical direction is detachably connected with the base, and the other end of the detection table 10 support assembly 70 in the vertical direction is detachably connected with the detection table 10. This achieves the detachable connection between the detection table 10 and the base 60, but is not limited thereto.

[0097] Further, the detection table 10 support assembly 70 comprises four support columns 71, as shown in Figure 1 The ends of the support columns 71 in the axial direction are respectively provided with threaded holes, and the detection table 10 is fixedly connected with the base 60 through the threaded holes, but is not limited thereto.

[0098] In one embodiment, the two ends of the first circular groove 11 are further provided with hand grooves 14 in communication therewith, which facilitate the operator to take or place the rotor positioning disc 20 on the detection table 10, but are not limited thereto.

[0099] In one embodiment, the detection table 10 is further provided with a first circular through hole 15 coaxial with the first circular groove 11, and the diameter of the first circular through hole 15 is smaller than that of the first circular groove 11, facilitating the rotor shaft to pass through. The lower surface of the rotor positioning disc 20 is provided with a recessed part 23 matched with the hand groove 14, thereby facilitating the operator to replace the rotor positioning disc.

[0100] In the present patent application, the nouns and pronouns related to persons are not limited to a specific gender.

[0101] ​The application has been described in detail above with reference to the accompanying drawings and preferred embodiments, but the application is not limited to these disclosed embodiments, based on the above-described embodiments, those skilled in the art can know that the code review means in the above-described different embodiments can be combined to obtain more embodiments of the application, and these embodiments are also within the protection scope of the application.

[0102] It should be understood that although the present specification is described in terms of various embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0103] The above series of detailed descriptions are only specific descriptions of the feasible embodiments of the application, and are not used to limit the protection scope of the application, and equivalent embodiments or changes made without departing from the spirit of the application, such as combination, division or repetition of features, should be included in the protection scope of the application.

Claims

1. A gauge for detecting the installation angle deviation of an encoder clutch (81), characterized in that, The detection tool comprises: a detection table (10), the upper surface of which is provided with a first circular groove (11), and an angle scale line (12) is arranged along the first circular groove (11); at least one rotor positioning disc (20), each rotor to be detected is matched with one rotor positioning disc (20); the upper surface of each rotor positioning disc (20) is provided with an indication line (21) and a positioning pin group (22), one of the positioning pin group (22) is a reference N-pole positioning pin (221); the rotor positioning disc (20) is placed in the first circular groove (11) and can rotate relative to the detection table (10); a clutch profiling tool (30) which is movably arranged above the rotor positioning disc (20) in the vertical direction; the rotor to be detected is placed on the rotor positioning disc (20) in a manner that the reference N-pole process hole thereof is aligned with the reference N-pole positioning pin (221) on the rotor positioning disc (20), the clutch profiling tool (30) is lowered, and the rotor to be detected is rotated until the encoder clutch (81) of the rotor to be detected enters the clutch profiling tool (30), and the rotor positioning disc (20) reaches a detection position; in the case that the rotor positioning disc (20) is at the detection position, the installation angle deviation of the encoder clutch (81) can be obtained according to the scale value of the indication line (21) on the angle scale line (12).

2. The gauge of claim 1, wherein, The upper surface of the rotor positioning disc (20) is flush with the upper surface of the detection table (10).

3. The gauge of claim 1, wherein, The positioning pin group (22) comprises two positioning pins, and the center line of the two positioning pins passes through the center axis of the rotor positioning disc (20).

4. The gauge of claim 1, wherein, The angle scale line (12) comprises a 0 scale line (121), and an angle positive tolerance group and an angle negative tolerance group which are symmetrically arranged along the 0 scale line (121); and The included angle α between the indication line (21) and the reference N-pole of the rotor positioning disc (20) is equal to γ-β, wherein β is used to represent the included angle between the clutch center line of the clutch profiling tool (30) and the 0 scale line (121), and γ is used to represent the theoretical value of the installation angle of the encoder clutch (81) of the rotor corresponding to the rotor positioning disc (20), wherein the installation angle of the encoder clutch (81) is the included angle between the center line of the encoder clutch (81) of the rotor and the reference N-pole of the rotor.

5. The gauge of claim 1 wherein, The detection table (10) is further provided with an N-pole identification group, the N-pole identification group comprises at least the N-pole indication identification of one rotor, and each N-pole indication identification comprises a reference N-pole indication line (131) and the corresponding rotor model (132) thereof.

6. The gauge of claim 1, further comprising, The detection tool further comprises a plurality of calibration pieces (40), each rotor to be detected is matched with one calibration piece (40). Each of the calibration pieces (40) sequentially comprises a base plate (41), a central shaft (42) and a simulation clutch (43) along its axial direction, wherein the base plate (41) is provided with a simulation hole group (411) and a reference line (412), the simulation hole group (411) corresponds to the process hole of the rotor corresponding to the calibration piece (40) matched with the positioning pin group (22), and the simulation clutch (43) is consistent with the encoder clutch (81) of the rotor corresponding to the calibration piece (40); The reference line (412) and the reference N-pole of the calibration piece (40) form an angle α'=γ-β, wherein β is used to represent the angle between the clutch center line of the clutch profiling tool (30) and the 0 scale line (121), and γ is used to represent the theoretical value of the installation angle of the encoder clutch (81) of the rotor corresponding to the calibration piece (40); The calibration piece (40) is placed on the rotor positioning disc (20) in a manner that the reference N-pole simulation hole (4111) of the calibration piece (40) is aligned with the reference N-pole positioning pin (221) on the rotor positioning disc (20), the clutch profiling tool (30) is lowered, and the calibration piece (40) is rotated until the simulation clutch (43) of the calibration piece (40) enters the clutch profiling tool (30), and the rotor positioning disc (20) reaches the calibration position; When the reference line (412) is aligned with the indication line (21) and the indication line (21) points to the 0 scale line (121) when the rotor positioning disc (20) is in the calibration position, the rotor positioning disc (20) is calibrated and qualified.

7. The gauge of claim 6 wherein, The reference line (412) extends radially from the upper surface of the base plate (41) to the side surface thereof.

8. The gauge of claim 1 wherein, The gauge further comprises a vertical movement assembly (50) comprising a fixed part (51) and a sliding part (52), and the clutch profiling tool (30) is detachably connected with the sliding part (52).

9. The gauge of claim 8, wherein, The gauge further comprises a base (60), wherein the fixed part (51) and the detection table (10) are fixedly connected with the base (60) respectively.

10. The gauge of claim 9, wherein, The fixed part (51) and the detection table (10) are arranged along a first horizontal direction; and both ends of the base (60) along a second horizontal direction are further provided with handles (61), and the second horizontal direction is perpendicular to the first horizontal direction.

Images