Stator assembly cone hole size testing fixture of conical rotor motor and manufacturing and using method

Abstract

The application is a stator assembly cone hole size correction gauge for a conical rotor motor, comprising a stator assembly preset rotor measuring seat structure and a stator assembly calibration table preset stator structure. The stator assembly preset rotor measuring seat structure comprises a detection seat body, a preset stator sleeve structure, a butt joint inner ring, an attached adjustment pad, and an adjustment fixed screw. The stator assembly calibration table preset stator structure comprises an alignment value measuring structure arranged on the upper part of a test connecting rod structure, a preset rotor block, a top limiting alignment structure, and a handle structure. The device realizes fast and accurate online detection of the axial size deviation of the motor assembly, is simple to operate, more intuitively reflects the detection results, can realize full detection operation, effectively controls the repeated handling of the motor rotor by workers, reduces the labor of the operating personnel, improves work efficiency, ensures product quality, has obvious industrial effect, has high production rate, and has good practicality.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric motor, in particular to the stator assembly cone hole size correction gauge of the conical rotor motor. BACKGROUND

[0002] The structural feature of the conical rotor three-phase asynchronous motor is that the stator and rotor are of a certain conical angle, the stator and rotor core heights are aligned after assembly, and the stator and rotor air gap is ensured. However, due to the deviation of the stator shell depth, the stator and rotor taper, and the casting processing, the stator and rotor core cannot be aligned and the air gap cannot be ensured after the motor stator and rotor are assembled. Usually, adjusting shims are added in the rear end cover cylindrical roller bearing chamber, or the size of the support ring on the rotor is processed to adjust the gap between the stator and rotor. However, the workers often need to repeatedly disassemble and assemble the rotor to adjust the axial size, which consumes a large amount of labor of the workers, and the repeated handling also causes the scratching of the stator winding end, which reduces the quality of the motor product.

[0003] In order to solve the problem that the stator and rotor core of the conical rotor three-phase asynchronous motor are not aligned or the air gap needs to be adjusted and checked repeatedly during assembly, a conical hole size gauge for the assembly of the conical rotor motor is designed. SUMMARY

[0004] The purpose of the present application is to provide a light conical rotor motor stator assembly conical hole size correction gauge, which can quickly and accurately measure the axial size deviation. It can effectively control the repeated handling of the motor rotor by the workers, reduce the labor intensity of the workers, and will not cause the problem of scratching of the stator winding.

[0005] The technical scheme adopted by the present application to solve the technical problem is that the stator assembly conical hole size correction gauge of the conical rotor motor comprises a stator assembly preset rotor measurement seat structure and a stator assembly calibration table preset stator structure arranged in the stator assembly preset rotor measurement seat structure. The stator assembly preset rotor measurement seat structure comprises a detection seat body, a preset stator sleeve structure arranged at the upper end of the detection seat body, a butt joint inner ring arranged at the central position of the upper part of the detection seat body, an attached adjustment pad block arranged in the inner part of the butt joint inner ring, and an adjustment fixing screw arranged between the attached adjustment pad block and the detection seat body. The stator assembly calibration table preset stator structure comprises a test connecting rod structure, an alignment value determination structure arranged at the upper part of the test connecting rod structure, a preset stator butt joint ring body arranged at the upper part of each support block, and a handle structure arranged at the upper part of the test connecting rod structure.

[0006] The preset stator sleeve structure comprises a plurality of circumferentially arranged support blocks arranged at the upper end of the detection seat body, and a preset stator butt joint ring body arranged at the upper part of each support block. The butt joint ring body is provided with an inner inclined surface.

[0007] The test connecting rod structure comprises an outer sleeve and a test inner rod body arranged in the outer sleeve.

[0008] The alignment numerical measurement structure comprises a test gauge connecting seat arranged on the upper portion of the outer sleeve, and a detection dial indicator body arranged in the test gauge connecting seat, wherein a test end of the detection dial indicator body is connected with the test inner rod body.

[0009] The set rotor block body is in a cross shape, and a connecting hole is arranged in the middle portion of the set rotor block body, and an outer inclined surface is arranged on the outer end surface of the outer extension body of each set rotor block body, and the outer inclined surface is arranged in a gap with the inner inclined surface of the abutting ring body.

[0010] The top limiting alignment structure comprises a detection head body connected with the bottom of the test inner rod body, a cylindrical roller bearing abutting groove body arranged on the bottom of the detection head, and a central connecting hole arranged in the middle portion of the detection head body.

[0011] The handle structure is in an Ω shape, and a connecting end of the bottom and an arc-shaped hand carrying section of the upper portion are arranged.

[0012] The manufacturing method of the stator assembly taper hole size gauge of the conical rotor motor, the taper of the stator assembly preset rotor measurement seat structure matched with the stator assembly calibration preset stator structure is consistent with the taper of the motor stator and rotor, and when the motor is assembled, there is a 0.5mm single-sided air gap between the stator and the rotor, when the stator assembly taper hole size gauge is designed, the air gap size is converted into an axial size, the motor stator and rotor cores have an 8° taper angle and a 0.5mm air gap, the rotor core diameter is 160mm, the distance from the end surface of the cylindrical roller bearing is 154mm in theory, and when the rotor core and the stator core taper surface are closely attached, the distance between the rotor core diameter of 160mm and the end surface of the cylindrical roller bearing is 150.5mm.

[0013] When the outer sleeve and the test inner rod body do not have relative displacement in the calibration preset stator structure, the maximum outer diameter of the set rotor block body is 160mm, the distance between the end surface of the set rotor block body and the detection head body is 150.5mm, the outer diameter is 30mm, the length is 163mm, the thickness is 5mm, the steel outer sleeve penetrates the center of the set rotor block body and is double-welded therewith, plays a supporting role for the set rotor block body, the outer diameter is 20mm, the length is 177mm, the thickness is 3mm, the test inner rod body moves relatively in the outer sleeve, the two are in sliding gap cooperation, and smooth sliding is ensured.

[0014] The two ends of the test inner rod body are plugged with welding blocks with a height of 10mm, and are polished flat, and the roughness needs to reach 6.3, the top end is in contact with the measuring rod head of the detection dial indicator body, the relative displacement of the test inner rod body is measured, and the dial indicator counts the axial displacement.

[0015] The detection dial body is supported by the test gauge connecting seat, the detection dial body bottom 8mm diameter sleeve is sleeved on the test gauge connecting seat, and is fixed on the side of the test gauge connecting seat by M6 locking screw, so as to prevent the detection dial body from tilting; the test gauge connecting seat is fixed on the outer sleeve together with the detection dial body, M30*1.5 thread cooperation is adopted, the thread engagement length is 10mm, and the detection dial body and the test inner rod body are fixedly connected;

[0016] The detection head body is fixedly connected with the test inner rod body by M6 screw, the effective engagement length is not less than 12mm, and the detection head body outer diameter is 90.5mm, which is gap cooperated with the size of the butt joint inner ring or the motor rear cover bearing chamber;

[0017] The whole gauge presetting substructure is fixed by the handle structure with a height of 210mm, the distance ratio between the detection dial body and the space used by manual extraction is set,

[0018] The maximum inner diameter of the presetting sub butt joint ring body is 162.8, the minimum inner diameter is 151.64mm, the height is 40mm, the taper angle is 8°, the maximum outer diameter is 193mm, which is equivalent to the motor stator core, and is closely attached to the setting rotor block body;

[0019] The presetting sub butt joint ring body 6 is supported by 6 support blocks with a height of 104mm, and is fixed by welding; the detection seat body 1 with an outer diameter of 193mm and a thickness of 18mm supports and fixes the whole preset rotor measurement seat structure;

[0020] The detection seat body is welded with a butt joint inner ring with an outer diameter of 110mm, an inner diameter of 90mm and a height of 28mm, which is equivalent to the motor bearing chamber, and the outer diameter of 90mm and the height of 11mm of the mounting and adjusting pad block are placed, and are fixed by the adjusting and fixing screw of M6*12,

[0021] When the tool is used for a long time, the taper surface and the mounting and adjusting pad block are abraded, and the mounting and adjusting pad block needs to be adjusted in position by the adjusting and fixing screw.

[0022] The use method of the stator assembly taper hole size detection tool, the taper of the stator assembly preset rotor measurement seat structure matched with the stator assembly gauge presetting substructure is consistent with the taper of the motor stator and rotor, during the motor assembly, the stator assembly gauge presetting substructure is placed in the stator assembly preset rotor measurement seat structure before use, the detection dial body on the stator assembly gauge presetting substructure is zeroed, and the revolution indicator disc scale is adjusted to the middle value;

[0023] The stator assembly calibration table pre-setting stator structure is used for detecting the stator assembly. When the stator assembly calibration table pre-setting stator structure is set, the set rotor block body is closely attached to the motor stator core. The distance between the cylindrical roller bearing butt joint groove body and the end face of the cylindrical roller bearing is transmitted to the bottom contact of the detection dial gauge body through the test inner rod body. When the dial gauge pointer rotates counterclockwise, the number of rotations decreases, and the reading decreases. The cylindrical roller bearing end face in the motor rear cover needs to be adjusted by a gasket. When the dial gauge pointer rotates clockwise, the number of rotations increases, and the reading increases. The support ring on the rotor needs to be turned. When the detection head body is in front, the detection dial gauge body reading is 0mm, and the number of rotations is 3. After the stator assembly is measured, the detection dial gauge body reading is 0.6mm, and the number of rotations is between 1-2, that is, the detection dial gauge body pointer rotates 1.6 turns, and the reading decreases by 1.6mm. The thickness of each attached adjusting gasket is 0.5mm. That is, 3 adjusting gaskets need to be added.

[0024] The advantages of the present application are that the device realizes fast and accurate online detection of motor assembly axial size deviation of stator and rotor, is simple to operate, more intuitively reflects the detection results, can realize full detection operation, effectively controls the repeated handling of motor rotors by workers, reduces the labor of too many operators, improves work efficiency, ensures product quality, has obvious industrial effect, high production rate, and good practicality.

[0025] The present application will be described in more detail below with reference to the accompanying drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The figure is a structural schematic diagram of the present application.

[0027] Figure 2 The figure is a structural schematic diagram of the stator assembly pre-setting rotor measurement seat structure in the present application.

[0028] Figure 3 The figure is a structural schematic diagram of the stator assembly calibration table pre-setting stator structure in the present application.

[0029] Figure 4 The figure is a structural schematic diagram of the test inner rod body in 3.

[0030] Figure 5 The figure is a structural schematic diagram of the detection head body in 3.

[0031] Figure 6 The figure is a structural schematic diagram of the set rotor block body in 3.

[0032] Figure 7 The figure is a use state diagram of the present application.

[0033] Figure 8 The figure is a state diagram of the present application after assembly.

[0034] In the diagram: 1. Testing base, 2. Inner ring, 3. Mounting and adjusting shim, 4. Adjusting and fixing screw, 5. Support block, 6. Preset rotor docking ring, 7. Inner inclined surface, 8. Handle structure, 9. Setting rotor block, 10. Mounting hole, 11. Outer inclined surface, 12. Outer sleeve, 13. Testing inner rod, 14. Testing instrument connecting seat, 15. Testing head, 16. Cylindrical roller bearing docking groove, 17. Center connecting hole, 18. Testing dial indicator body, 19. Motor stator core, 20. Motor rear cover, 21. Cylindrical roller bearing, 22. Adjusting shim. Detailed Implementation

[0035] The terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end" used in the application text to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] Example 1, such as Figures 1-6 As shown, the stator assembly tapered hole size correction fixture for a conical rotor motor includes a stator assembly preset rotor measuring seat structure and a stator assembly calibration preset substructure located within the stator assembly preset rotor measuring seat structure. The stator assembly preset rotor measuring seat structure includes a detection seat body 1, a preset sub sleeve structure located at the upper end of the detection seat body, a docking inner ring 2 located at the center position of the upper part of the detection seat body, a mounting adjustment pad 3 located inside the docking inner ring, and an adjustment fixing screw 4 located between the mounting adjustment pad and the detection seat body. The preset sub sleeve structure includes multiple circumferentially arranged support blocks 5 located at the upper end of the detection seat body 1, and a preset sub docking ring 6 located on the upper part of each support block. The docking ring has an inner inclined surface 7.

[0038] The stator assembly calibration preset stator structure includes a test connecting rod structure, an alignment value measuring structure located on the upper part of the test connecting rod structure, a preset rotor block located on the outside of the test connecting rod structure, a top limiting alignment structure located at the bottom of the test connecting rod structure, and a handle structure 8 located on the upper part of the test connecting rod structure. The handle structure is Ω-shaped and has a bottom connecting end and an upper arc-shaped carrying section. The preset rotor block 9 is cross-shaped, with a mounting hole 10 in the middle. An outer inclined surface 11 is provided on the outer end face of the extension of each preset rotor block 9, and the outer inclined surface 11 is spaced apart from the inner inclined surface 7 of the docking ring.

[0039] The test connecting rod structure includes an outer sleeve 12 and a test inner rod 13 housed within the outer sleeve. The alignment value measurement structure includes a test gauge connecting seat 14 located on the upper part of the outer sleeve 12 and a dial indicator body 18 housed within the test gauge connecting seat; the test end of the dial indicator body is connected to the test inner rod 13. The top limiting alignment structure includes a test head 15 connected to the bottom of the test inner rod; the bottom of the test head has a cylindrical roller bearing mating groove 16, and a central connecting hole 17 in the middle of the test head.

[0040] Example 2, as Figures 1-8 As shown, the method for manufacturing a stator assembly tapered hole size gauge for a conical rotor motor is described. The taper of the stator assembly preset rotor measuring seat structure and the stator assembly calibration table preset stator structure is consistent with the taper of the motor stator and rotor. During motor assembly, there is a 0.5mm single-sided air gap between the stator and rotor. In the design of the stator assembly tapered hole size gauge, the air gap size is converted into the axial size. The motor stator and rotor cores have an 8° cone angle and a 0.5mm air gap. Theoretically, the distance from the rotor core diameter of 160mm to the end face of the cylindrical roller bearing is 154mm. However, when the rotor core and stator core tapered surfaces are tightly fitted, the distance from the rotor core diameter of 160mm to the end face of the cylindrical roller bearing is 150.5mm.

[0041] When there is no relative displacement between the outer sleeve 12 and the test inner rod 13 in the calibration preset substructure, the maximum outer diameter of the setting rotor block 9 is 160mm, and the distance between the end face of the setting rotor block 9 and the detection head body 15 is 150.5mm. The outer sleeve 12, made of steel with an outer diameter of 30mm, a length of 163mm, and a thickness of 5mm, passes through the center of the setting rotor block 9 and is welded to it on both sides, serving to support the setting rotor block 9. The test inner rod 13, with an outer diameter of 20mm, a length of 177mm, and a thickness of 3mm, moves relative to the outer sleeve 12. The two are in a sliding clearance fit, ensuring smooth sliding.

[0042] The two ends of the test inner rod body 13 are plugged with weld blocks with a height of 10 mm, and are polished flat, with a roughness of 6.3. The top end is in contact with the measuring rod head of the detection dial gauge body 18, and the relative displacement of the test inner rod body 13 is measured. The dial gauge is used to count the axial displacement.

[0043] The detection dial gauge body 18 is supported by the test gauge connecting seat 14. The bottom of the detection dial gauge body 18 is sleeved on the test gauge connecting seat 14 with a sleeve with a diameter of 8 mm, and is fixed on the side of the test gauge connecting seat 14 with an M6 tightening screw to prevent the detection dial gauge body 18 from tilting. The test gauge connecting seat 14 is fixed on the outer sleeve 12 together with the detection dial gauge body 18, and is matched with an M30*1.5 thread, with a thread engagement length of 10 mm. The detection dial gauge body 18 is effectively fixed and connected with the test inner rod body 13.

[0044] The detection head body 15 is fixed and connected with the test inner rod body 13 by an M6 screw, with an effective engagement length of not less than 12 mm. The outer diameter of the detection head body 15 is 90.5 mm, which is matched with the gap of the inner ring 2 or the bearing chamber size of the motor rear cover.

[0045] The entire table calibration preset substructure is fixed by a handle structure with a height of 210 mm. The distance between the detection dial gauge body 18 and the space for manual extraction is set according to the proportion,

[0046] The maximum inner diameter of the preset sub-connection ring body 6 is 162.8 mm, the minimum inner diameter is 151.64 mm, the height is 40 mm, the taper angle is 8°, the maximum outer diameter is 193 mm, which is equivalent to the motor stator core, and is tightly fitted with the set rotor block 9.

[0047] The preset sub-connection ring body 6 is supported by 6 support blocks with a height of 104 mm, which are fixed by welding. The detection seat body 1 with an outer diameter of 193 mm and a thickness of 18 mm supports and fixes the entire preset rotor measurement seat structure.

[0048] The detection seat body 1 is welded with the inner ring 2 with an outer diameter of 110 mm, an inner diameter of 90 mm, and a height of 28 mm at the center, which is equivalent to the motor bearing chamber, and the mounting and adjusting pad block 3 with an outer diameter of 90 mm and a height of 11 mm is placed, and is fixed by the adjusting and fixing screw 4 with an M6*12,

[0049] When the tool is used for a long time, the taper surface and the mounting and adjusting pad block 3 are worn out, and the mounting and adjusting pad block 3 needs to be adjusted in position by the adjusting and fixing screw 4.

[0050] Example 3, as Figures 1-8The use method of the stator assembly cone hole size testing fixture of the cone rotor motor is shown, the stator assembly preset rotor measuring seat structure cooperates with the taper of the stator assembly calibration table preset stator structure, and the taper of the motor stator and rotor is consistent, when the motor is assembled, the stator assembly calibration table preset stator structure is placed in the stator assembly preset rotor measuring seat structure before use, the detection dial body 18 on the stator assembly calibration table preset stator structure is zeroed, and the revolution indicator disc scale is adjusted to the middle value.

[0051] The preset rotor block body 9 of the stator assembly calibration table preset stator structure is closely attached to the motor stator core 19 when the stator assembly calibration table preset stator structure 1 is actually measured, the distance between the cylindrical roller bearing butt joint groove body 16 of the detection head body 15 and the end face of the cylindrical roller bearing 21 is transmitted to the bottom contact of the detection dial body 18 through the test inner rod body 13, when the dial pointer counterclockwise rotates, the number of revolutions decreases, the number of revolutions decreases, and adjustment shims need to be added to the end face of the cylindrical roller bearing 21 in the motor rear cover 20; when the dial pointer clockwise rotates, the number of revolutions increases, and the number of revolutions increases, and the supporting ring on the rotor needs to be turned.

[0052] The working principle and working process of the application are as follows: Figures 1-8 The stator assembly calibration table preset stator structure is placed in the stator assembly preset rotor measuring seat structure before use, the detection dial body 18 on the stator assembly calibration table preset stator structure is zeroed, and the revolution indicator disc scale is adjusted to the middle value.

[0053] The preset rotor block body 9 of the stator assembly calibration table preset stator structure is closely attached to the motor stator core 19 when the stator assembly calibration table preset stator structure 1 is actually measured (see the schematic diagram), the distance between the cylindrical roller bearing butt joint groove body 16 of the detection head body 15 and the end face of the cylindrical roller bearing 21 is transmitted to the bottom contact of the detection dial body 18 through the test inner rod body 13, when the dial pointer counterclockwise rotates, the number of revolutions decreases, the number of revolutions decreases, and adjustment shims need to be added to the end face of the cylindrical roller bearing 21 in the motor rear cover 20; when the dial pointer clockwise rotates, the number of revolutions increases, and the number of revolutions increases, and the supporting ring on the rotor needs to be turned.

[0054] Example: When the detection head body 15 is in front, the detection dial gauge body 18 shows 0mm, and the number of revolutions is 3; while the actual measurement is assembled, the detection dial gauge body 18 shows 0.6mm, and the number of revolutions is between 1-2, that is, the detection dial gauge body 18 pointer rotates 1.6 turns, the number shows 1.6mm, and each thickness of the adjusting washer 22 is 0.5mm, that is, 3 adjusting washers 22 need to be added. The device realizes the fast and accurate online detection of the axial size deviation of the motor assembly, is simple to operate, more intuitively reflects the detection result, can realize full detection operation, effectively controls the repeated carrying of the motor rotor by workers, reduces the excessive labor of the operating personnel, improves the work efficiency, simultaneously guarantees the product quality, has obvious industrial effect, high production rate, and good practicability.

[0055] The above embodiments only describe the preferred embodiments of the present application, and do not limit the scope of the present application, and various deformations and improvements of the technical solutions of the present application made by the ordinary engineering and technical personnel in the art without departing from the design spirit of the present application should fall within the protection scope determined by the claims of the present application.

[0056] The parts not involved in the present application are the same as or can be realized by using the prior art.

Claims

1. A fixture for measuring the size of the conical hole in the stator assembly of a conical rotor motor, characterized in that: The application relates to a stator assembly preset rotor measuring seat structure and a stator assembly calibration preset stator structure arranged in the stator assembly preset rotor measuring seat structure, wherein the stator assembly preset rotor measuring seat structure comprises a detection seat body, a preset stator sleeve structure arranged at the upper end of the detection seat body, a butt joint inner ring arranged at the central position of the upper part of the detection seat body, an attachment adjustment pad arranged in the inner part of the butt joint inner ring and an adjustment fixing screw arranged between the attachment adjustment pad and the detection seat body; the stator assembly calibration preset stator structure comprises a test connecting rod structure, an alignment numerical value measuring structure arranged at the upper part of the test connecting rod structure, a preset rotor block body arranged at the outer side of the test connecting rod structure, a top limiting alignment structure arranged at the bottom of the test connecting rod structure and a lifting handle structure arranged at the upper part of the test connecting rod structure. The preset stator sleeve structure comprises a plurality of circumferentially arranged support blocks arranged at the upper end of the detection seat body and a preset stator butt joint ring body arranged at the upper part of each support block; the butt joint ring body is provided with an inner inclined surface; the test connecting rod structure comprises an outer sleeve and a test inner rod body arranged in the outer sleeve. The alignment numerical value measuring structure comprises a test gauge connecting seat arranged at the upper part of the outer sleeve and a detection dial indicator body arranged in the test gauge connecting seat; the test end of the detection dial indicator body is connected with the test inner rod body. The preset rotor block body is in a cross shape, is provided with an attachment hole in the middle part, is provided with an outer inclined surface at the outer end surface of the outer extension body of each preset rotor block body and is arranged in clearance with the inner inclined surface of the butt joint ring body.

2. The stator assembly cone bore dimensioning fixture for a cone motor as set forth in claim 1, wherein: The top limiting alignment structure comprises a detection head body connected with the bottom of the test inner rod body; the bottom of the detection head is provided with a cylindrical roller bearing butt joint groove body; the central connecting hole of the middle part of the detection head body.

3. The stator assembly cone bore dimensioning fixture for a cone motor as set forth in claim 1, wherein: The lifting handle structure is in an omega shape, is provided with a connecting end at the bottom and an arc-shaped hand lifting section at the upper part.

4. The stator assembly cone bore dimensioning fixture for a cone motor as set forth in claim 1, wherein: The application relates to a manufacturing method of a stator assembly conical hole size gauge of a conical rotor motor; the taper of the stator assembly preset rotor measuring seat structure and the stator assembly calibration preset stator structure is consistent with the taper of the motor stator and rotor; when the motor is assembled, there is a 0.5mm single-side air gap between the stator and the rotor; when the stator assembly conical hole size gauge is designed, the air gap size is converted into an axial size; the motor stator and rotor cores have an 8-degree taper angle and a 0.5mm air gap; the rotor core diameter is 160mm; the distance from the end surface of the cylindrical roller bearing to the theoretical value is 154mm; when the rotor core and the stator core taper surface are closely combined, the distance between the rotor core diameter of 160mm and the end surface of the cylindrical roller bearing is 150.5mm. In the presetting substructure of the dial gauge, when the external sleeve and the test inner rod do not have relative displacement, the maximum outer diameter of the setting rotor block is 160 mm, the distance between the end face of the setting rotor block and the detection head is 150.5 mm; the external sleeve made of steel with an outer diameter of 30 mm, a length of 163 mm and a thickness of 5 mm penetrates the center of the setting rotor block and is welded on both sides of the setting rotor block, thereby supporting the setting rotor block; the test inner rod with an outer diameter of 20 mm, a length of 177 mm and a thickness of 3 mm moves relatively in the external sleeve, and the two are in sliding gap cooperation and ensure smooth sliding; The two ends of the test inner rod are sealed by welding blocks with a height of 10 mm, and are polished flat, and the roughness needs to reach 6.3; the top end is in contact with the measuring rod head of the detection dial gauge body, and the relative displacement of the test inner rod is measured, and the dial gauge is used to count the axial displacement; The detection dial gauge body is supported by the test gauge connecting seat, the bottom of the detection dial gauge body is sleeved on the test gauge connecting seat with a sleeve with a diameter of 8 mm, and is fixed on the side of the test gauge connecting seat with an M6 tightening screw to prevent the detection dial gauge body from tilting; the test gauge connecting seat is fixed on the external sleeve together with the detection dial gauge body, and is matched with an M30*1.5 thread, the thread engagement length is 10 mm, and the detection dial gauge body and the test inner rod are fixedly connected; The detection head body and the test inner rod are fixedly connected by an M6 screw, and the effective engagement length is not less than 12 mm, and the outer diameter of the detection head body is 90.5 mm, which is in gap cooperation with the size of the butt joint inner ring or the motor rear cover bearing chamber; The entire presetting substructure is fixed by a handle structure with a height of 210 mm, which is set according to the distance ratio between the detection dial gauge body and the space for manual extraction, The maximum inner diameter of the presetting sub-interface ring body is 162.8, the minimum inner diameter is 151.64 mm, the height is 40 mm, the taper angle is 8°, and the maximum outer diameter is 193 mm, which is equivalent to the motor stator core and closely fits with the setting rotor block; The presetting sub-interface ring body (6) is supported by six 104 mm high support blocks and is fixed by welding; the detection seat body (1) with an outer diameter of 193 mm and a thickness of 18 mm supports and fixes the entire preset rotor measurement seat structure; An outer diameter of 110 mm, an inner diameter of 90 mm, and a height of 28 mm of the butt joint inner ring are welded at the center of the detection seat body, which is equivalent to the motor bearing chamber, and an outer diameter of 90 mm and a height of 11 mm of the mounting and adjusting pad block are placed and fixed by an M6*12 adjusting and fixing screw, When the tool is used for a long time, the taper surface and the mounting and adjusting pad block are worn out, and the mounting and adjusting pad block needs to be adjusted in position by the adjusting and fixing screw.

5. The stator assembly cone bore dimensioning fixture for a cone motor as set forth in claim 1, wherein: The taper of the preset rotor measurement seat structure matched with the presetting substructure of the dial gauge of the stator assembly and the taper of the motor stator and rotor are consistent, and when the motor is assembled, the presetting substructure of the dial gauge of the stator assembly is placed in the preset rotor measurement seat structure before use, the detection dial gauge body on the presetting substructure of the dial gauge of the stator assembly is zeroed, and the revolution indicator disc scale is adjusted to the middle value. Again the stator assembly calibration table pre-set stator structure measured stator assembly, stator assembly calibration table pre-set stator structure set rotor block and motor stator core closely, the cylindrical roller bearing of detection head body butt joint groove body and the end face distance of cylindrical roller bearing is transmitted to the bottom contact of detection dial test bar body, when the dial pointer counterclockwise rotation, namely the number of revolutions decreases, the number decreases, need to increase the adjusting washer in the end face of cylindrical roller bearing in the motor rear cover; when the dial pointer clockwise rotation, the number of revolutions increases, the number increases, need to turn the rotor on the support ring.

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