Device suitable for pole staggering press fitting of motor rotor

Abstract

The utility model discloses a device suitable for staggered pole press fitting of a motor rotor, which comprises a bottom plate, an angle positioning plate and one or more mounting seats positioned on the bottom plate, the top of each mounting seat is provided with a positioning pin, each mounting seat is provided with an arc-shaped mounting hole, the arc-shaped mounting hole and the central axis of each mounting seat are coaxially arranged, and the angle positioning plate is arranged on the bottom plate. Screws penetrate through the arc-shaped mounting holes and are fixedly connected with the bottom plate. The outer side surface of the angle positioning plate is provided with at least one plane, the angle positioning plate is provided with a plurality of positioning groups correspondingly positioned with the mounting seat, each positioning group is a positioning hole corresponding to the rotor staggered pole angle in the rotor assembly, and the positioning pins in the mounting seat simultaneously penetrate through the positioning holes of the angle positioning plate to realize the angle positioning of the mounting seat. The angle of the mounting seat is positioned through the independent angle positioning plate, the adjusting mode is simple and quick, the use cost is low, and the remodeling efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of rotor press-fitting technology, and in particular to a device suitable for press-fitting misaligned poles of motor rotors. Background Technology

[0002] Rotor offset pressing refers to the process where two or more rotors are stacked, requiring adjacent rotors to be offset by a certain angle. Different motors have different offset angles for their rotors. Existing rotor pressing fixtures can only position different rotor cores within the same rotor assembly at specific angles. For example, patent CN220673586U uses positioning pins on a chassis to position the rotor core; however, installing another rotor core requires changing the chassis. Similarly, patent CN220964587U uses locking elements inserted into different positioning holes on a turntable to position different rotor cores within the rotor assembly. Because each chassis in existing fixtures is used only for the same rotor assembly, pressing rotor assemblies with different offset angles requires removing the chassis or replacing the entire fixture, leading to reduced work efficiency. Furthermore, the complex chassis structure and high replacement costs make existing pressing fixtures unsuitable for operating permanent magnet rotors with various angles. Utility Model Content

[0003] To address the technical problem that existing rotor pressing fixtures can only perform angular positioning for different rotor cores within the same rotor assembly, and require disassembly of the chassis or replacement of the entire fixture when pressing different rotor assemblies, thus reducing work efficiency, this invention provides a device suitable for pressing misaligned motor rotors to solve the above problems.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a device suitable for pressing misaligned poles of motor rotor, including a base plate, an angle positioning plate, and one or more mounting seats located on the base plate. The top of the mounting seat is provided with a positioning pin, and the mounting seat is provided with an arc-shaped mounting hole. The arc-shaped mounting hole is coaxially arranged with the central axis of the mounting seat, and a screw passes through the arc-shaped mounting hole and is fixedly connected to the base plate. The outer side of the angle positioning plate has at least one plane, and the angle positioning plate has multiple positioning groups corresponding to the mounting seats. Each positioning group is a positioning hole corresponding to the misaligned pole angle of the rotor in the rotor assembly. The positioning pin in the mounting seat passes through the positioning hole of the angle positioning plate to realize the angle positioning of the mounting seat.

[0005] In an optional embodiment of this invention, each mounting base has two locating pins arranged in a circumferential array.

[0006] In an optional embodiment of this utility model, the mounting base includes a base and a connecting seat located on top of the base, the arc-shaped mounting hole is located on the base, the positioning pin is located on top of the connecting seat, and the rotor core is in contact with the upper end face of the connecting seat.

[0007] In an optional embodiment of this utility model, both the base and the connecting seat include a large-diameter section and a small-diameter section, and the outer diameter of the small-diameter section of the base is equal to the outer diameter of the large-diameter section of the connecting seat; the arc-shaped mounting hole is located in the large-diameter section of the base, and the positioning pin is located at the end of the small-diameter section of the connecting seat.

[0008] In an optional embodiment of this utility model, multiple mounting bases are arranged in a straight line.

[0009] In an optional embodiment of this utility model, a handle is provided at one end of the base plate.

[0010] In an optional embodiment of this utility model, the angle positioning plate is a rectangular plate.

[0011] The beneficial effects of this utility model are:

[0012] (1) This utility model uses an independent angle positioning plate to position the mounting base at an angle. When it is necessary to press rotor components with different offset angles, it is only necessary to adjust the mounting base using the corresponding angle positioning plate. There is no need to replace the mounting base. The adjustment method is simple and quick, and the cost of use is low, thereby improving the efficiency and quality of model changeover.

[0013] (2) This utility model can press-fit multiple rotor components of the same type at the same time, and multiple mounting seats can be adjusted at the same time through the angle positioning plate without manual confirmation, thereby improving the pressing effect. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a front view of a specific embodiment of the device for pressing misaligned poles of motor rotors according to this utility model;

[0016] Figure 2 This is a schematic diagram of the utility model in use;

[0017] Figure 3 This is a schematic diagram illustrating a specific implementation of the angle positioning plate in this utility model;

[0018] Figure 4 This is a schematic diagram illustrating a specific implementation of the angle positioning plate in this utility model.

[0019] In the diagram, 1. base plate, 2. angle positioning plate, 3. mounting base, 301. base, 302. connecting base, 4. positioning pin, 5. arc-shaped mounting hole, 6. screw, 7. positioning assembly, 701. positioning hole, 8. large diameter section, 9. small diameter section, 10. handle, 11. rotating shaft, 12. pressure head, 13. rotor core. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] Example 1

[0022] like Figure 1 and Figure 2 As shown, a device suitable for pressing and mounting a motor rotor with misaligned poles includes a base plate 1, an angle positioning plate 2, and one or more mounting seats 3 located on the base plate 1. The mounting seats 3 are components that support and position the rotor core 13 when pressing and mounting the rotor assembly. The mounting seats 3 have a columnar structure with a shaft hole in the center. The top of the mounting seats 3 is provided with a positioning pin 4 for positioning the rotor core 13.

[0023] Mounting base 3 is provided with an arc-shaped mounting hole 5, which is coaxially arranged with the central axis of mounting base 3. Screw 6 passes through the arc-shaped mounting hole 5 and is fixedly connected to the base plate 1. The arc-shaped mounting hole 5 can ensure that the center of mounting base 3 remains unchanged when it rotates. When screw 6 is loosened, mounting base 3 can be rotated. Under the mutual restraint of screw 6 and arc-shaped mounting hole 5, mounting base 3 keeps its center unchanged. The outer side of angle positioning plate 2 has at least one plane. Angle positioning plate 2 has multiple positioning groups 7 corresponding to the mounting base 3. Each positioning group 7 is a positioning hole 701 corresponding to the rotor misalignment angle in the rotor assembly. Positioning pin 4 in mounting base 3 passes through the positioning hole 701 of angle positioning plate 2 to realize the angle positioning of mounting base 3.

[0024] The outer surface of the plane in the angle positioning plate 2 can be used as a positioning surface, so that the angle positioning plate 2 has a fixed installation direction when it is fitted with the mounting base 3. For rotor assemblies with different pole offset angles, the position of the positioning hole 701 on the angle positioning plate 2 is different. Therefore, when the angle positioning plate 2 is placed on the mounting base 3, the position of the positioning pin 4 on the mounting base 3 can be adjusted accordingly.

[0025] Only one positioning pin 4 can be set on the mounting base 3. In this embodiment, two positioning pins 4 are arranged in a circumferential array on each mounting base 3. Then, there are two positioning holes 701 in each positioning group 7 of the angle positioning plate 2. Multiple through holes are usually arranged in a circumferential array on the rotor core 13. The positioning pin 4 can be inserted into the through holes of the rotor core 13 to achieve the angle positioning of the rotor core 13.

[0026] like Figure 1 As shown, the base 301 has four mounting seats 3, and the angle positioning plate 2 has three positioning groups 7, used for angular positioning of the three consecutively arranged mounting seats 3. Figure 3 and Figure 4 The two angular positioning plates 2 shown have two positioning pins 4 spaced 180° apart. However, since they are used for rotor assemblies at different angles, the positions of the positioning pins 4 on the two angular positioning plates 2 are different, that is, the two positioning pins 4 have been rotated a certain angle along the circumferential direction.

[0027] To facilitate the manufacture of the angle positioning plate 2, the angle positioning plate 2 can be rectangular or square. In the attached drawings of this utility model, multiple mounting bases 3 are arranged along a straight line, and the angle positioning plate 2 is a rectangular plate with the same extension direction as the base plate 1.

[0028] Under normal conditions, the mounting base 3 is fixed on the base plate 1, while the angle positioning plate 2 is set independently. When it is necessary to adjust the angle of the mounting base 3, loosen the screw 6 connecting the mounting base 3 and the base plate 1, place the angle positioning plate 2 on top of the mounting base 3, and position it through the positioning hole 701 and the positioning pin 4. After the angle adjustment is completed, remove the angle positioning plate 2, and then lock the mounting base 3 and the base plate 1 to fix them in place for rotor assembly press-fitting.

[0029] When multiple mounting seats 3 are set on the base 301, the angle needs to be adjusted during the first use to make the angle of each mounting seat 3 consistent. After that, when adjusting the angle, only the angle positioning plate 2 needs to be made to facilitate the rotor changeover operation at different angles without manual confirmation. This can not only speed up the pressing speed, but also avoid the pressing angle error caused by manual confirmation.

[0030] Mounting bracket 3:

[0031] Mounting base 3 includes a base 301 and a connecting seat 302 located on top of the base 301. An arc-shaped mounting hole 5 is located on the base 301, and a locating pin 4 is located on top of the connecting seat 302. The rotor core 13 is in contact with the upper end face of the connecting seat 302. The connecting seat 302 needs to be in contact with the rotor core 13, and the end face levelness requirement is high. Machining the base 301 and the connecting seat 302 separately can reduce the machining difficulty of mounting base 3.

[0032] In a further design, both the base 301 and the connecting seat 302 include a large-diameter section 8 and a small-diameter section 9, with the outer diameter of the small-diameter section 9 of the base 301 being equal to the outer diameter of the large-diameter section 8 of the connecting seat 302. An arc-shaped mounting hole 5 is located in the large-diameter section 8 of the base 301, and a locating pin 4 is located at the end of the small-diameter section 9 of the connecting seat 302. The outer diameter of the large-diameter section 8 is larger than the outer diameter of the small-diameter section 9, thus forming a shoulder structure on both the base 301 and the connecting seat 302 for convenient installation and fixation.

[0033] Example 2

[0034] Based on the above embodiments, this embodiment provides a handle 10 at one end of the base plate 1, which makes it easy to move the device.

[0035] The pressing process is as follows:

[0036] When using it for the first time, each mounting base 3 should be adjusted so that the positioning pin 4 of each mounting base 3 is at the same deflection angle.

[0037] like Figure 1 As shown, when it is necessary to adjust the angle of the mounting base 3, loosen the screw 6 connecting the mounting base 3 and the base plate 1, place the angle positioning plate 2 on top of the mounting base 3, and position it through the positioning hole 701 and the positioning pin 4. After the angle adjustment is completed, remove the angle positioning plate 2 and lock the mounting base 3 and the base plate 1 in place.

[0038] like Figure 2 As shown, the rotor core 13 is then placed on each mounting base 3, and the rotating shaft 11 is placed in the pressure head 12 with vacuum suction function. The pressure head 12 drives the rotating shaft 11 to press into the rotor core 13. Then, according to the misalignment angle requirement, the appropriate angle positioning plate 2 is selected to adjust the angle of the mounting base 3. The second rotor core 13 is placed on the adjusted mounting base 3, and the second rotor core 13 is pressed in by the pressure head 12.

[0039] In this specification, the illustrative expressions of the terms do not necessarily refer to the same embodiments. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments.

[0040] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A device suitable for mispolar press fitting of an electric machine rotor, characterized in that: The application relates to a rotor assembly, which comprises a bottom plate, an angle positioning plate and one or more mounting seats on the bottom plate, the top of the mounting seat is provided with a positioning pin, the mounting seat is provided with an arc-shaped mounting hole coaxially arranged with the central axis of the mounting seat, and a screw is fixedly connected with the bottom plate through the arc-shaped mounting hole; the outer side of the angle positioning plate is provided with at least one plane, the angle positioning plate is provided with a plurality of positioning groups corresponding to the mounting seats, each positioning group is a positioning hole corresponding to the angle of a rotor in a rotor assembly, and the positioning pins in the mounting seats pass through the positioning holes of the angle positioning plate at the same time, so that the angle positioning of the mounting seat is realized.

2. The device suitable for mispolar press fitting of an electric machine rotor according to claim 1, characterized in that: Two positioning pins are arranged in a circumferential array in each mounting seat.

3. The device suitable for mispolar press fitting of an electric machine rotor according to claim 1, characterized in that: The mounting seat comprises a base and a connecting seat on the top of the base, the arc-shaped mounting hole is arranged on the base, and the positioning pin is arranged on the top of the connecting seat and is in contact with the upper end surface of the connecting seat.

4. The device suitable for mispolar press fitting of an electric machine rotor according to claim 3, characterized in that: The base and the connecting seat both comprise a large-diameter section and a small-diameter section, the outer diameter of the small-diameter section of the base is equal to the outer diameter of the large-diameter section of the connecting seat, the arc-shaped mounting hole is arranged on the large-diameter section of the base, and the positioning pin is arranged on the end of the small-diameter section of the connecting seat.

5. The device suitable for mispolar press fitting of an electric machine rotor according to claim 1, characterized in that: The plurality of mounting seats are arranged in a straight line.

6. The device suitable for mispolar pressing of an electric machine rotor according to claim 1, characterized in that: One end of the bottom plate is provided with a handle.

7. The device suitable for mispolar pressing of an electric machine rotor according to claim 3, characterized in that: The angle positioning plate is a rectangular plate.

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