Magnetic steel assembly bonding tool and bonding method

Abstract

The present invention provides a magnetic steel assembly bonding tool and bonding method, which relates to the field of motor production and manufacturing. The bonding tool includes a base, a pressure plate, and a plurality of placeholders; the base includes a reference plate and a mounting shaft, the mounting shaft is perpendicularly arranged on the reference surface of the reference plate, and the outer ring and the inner ring can be movably mounted on the mounting shaft; the placeholders are identical in structure and number to the magnetic steel, and when bonding the magnetic steel assembly, the placeholders are placed between the outer ring and the inner ring to occupy the space; the pressure plate is connected to the base and can rotate around the axis of the mounting shaft, and the pressure plate is used to limit the placeholders or the magnetic steel from escaping from the space between the outer ring and the inner ring; the pressure plate is provided with a notch, which matches the notch and the placeholders, and the placeholders can be removed through the notch and the magnetic steel can be placed in the space between the outer ring and the inner ring. The bonding tool can complete the bonding assembly of the magnetic steel assembly, and the position accuracy of the magnetic steel is ensured by setting the reference plate, the pressure plate, the pressure plate notch, and the placeholders; in addition, the bonding tool has a simple structure and is easy to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of motor production and manufacturing, and in particular to a magnetic steel assembly bonding tool and a bonding method. Background Art

[0002] In a motor's stator, the magnet assembly consists of an outer ring, an inner ring, and multiple magnets that need to be evenly spaced circumferentially between them. Conventional methods use S-shaped springs to secure and clamp the magnets during magnet assembly production, resulting in uneven spacing between the magnets and affecting motor performance. Summary of the Invention

[0003] The first object of the present invention is to provide a magnetic steel assembly bonding tool to solve the technical problem that the magnetic steel gap of the magnetic steel assembly produced by the prior art is uneven, which affects the performance of the motor.

[0004] The present invention provides a magnetic steel assembly bonding tool, wherein the magnetic steel assembly includes an outer ring, an inner ring, and a plurality of magnetic steels disposed therebetween and evenly arranged along the circumferential direction, and the magnetic steel assembly bonding tool includes a base, a pressing plate, and a plurality of placeholders;

[0005] The base includes a reference plate and a mounting shaft, wherein the mounting shaft is perpendicularly arranged to the reference surface of the reference plate, and the outer ring and the inner ring are both capable of being movably sleeved on the mounting shaft;

[0006] The placeholders have the same structure and quantity as the magnetic steels. When bonding the magnetic steel assembly, the placeholders are placed between the outer ring and the inner ring to occupy the space.

[0007] The pressure plate is connected to the base and can rotate around the axis of the mounting shaft. The pressure plate is used to prevent the placeholder or the magnetic steel from leaving the space between the outer ring and the inner ring. The pressure plate is provided with a notch that matches the placeholder. The notch allows the placeholder to be removed and the magnetic steel to be inserted into the space between the outer ring and the inner ring.

[0008] The magnetic steel assembly bonding tool further includes a support plate, which is annular and has an inner diameter greater than an outer diameter of the mounting shaft. A glue-containing gap is formed between the support plate and the side wall of the mounting shaft.

[0009] Furthermore, the magnetic steel assembly bonding tool also includes a first fastener, and the mounting shaft is provided with a fixing hole extending along its axial direction. After the first fastener is fixed to the fixing hole, it can limit the pressure plate from separating from the mounting shaft in a direction away from the reference plate.

[0010] Furthermore, the magnetic steel assembly bonding tool also includes a plurality of pressing parts, and the pressure plate is further provided with a plurality of first through holes, and the pressing parts can press the magnetic steel by passing through the first through holes.

[0011] Furthermore, the magnetic steel assembly bonding tool also includes an auxiliary part, which can be detachably connected to the pressure plate, and the auxiliary part is provided with the first through hole. The clamping part passes through the first through hole on the auxiliary part to clamp the magnetic steel opposite to the notch.

[0012] Furthermore, the reference plate is provided with at least one second through hole, and the axis of the second through hole is parallel to the axis of the mounting shaft;

[0013] The magnetic steel assembly bonding tool further includes a ejector, which can pass through the second through hole to push the support plate and the magnetic steel assembly on the support plate to a reference surface away from the reference plate.

[0014] Furthermore, the placeholder is provided with a threaded hole, and the threaded hole is provided on the surface of the placeholder that is opposite to the notch.

[0015] The magnetic steel assembly bonding tool provided by the present invention can produce the following beneficial effects:

[0016] In the magnetic steel assembly bonding tool provided by the present invention, the base includes a reference plate and a mounting shaft; when in use, first the inner ring and the outer ring of the magnetic steel assembly are both mounted on the mounting shaft, and the same number of placeholders as the magnetic steel are placed between the outer ring and the inner ring; then the pressure plate is placed above the outer ring, the inner ring and the placeholders and the notch of the pressure plate is aligned with one of the placeholders, and the pressure plate is connected to the base; after the pressure plate and the base are connected, the magnetic steel coated with adhesive can be used to replace the placeholder corresponding to the notch of the pressure plate; after replacing one placeholder, the pressure plate is rotated and its notch is aligned with the next placeholder, and the placeholders are continued to be replaced, and so on, all the placeholders can be replaced with magnetic steel; and when all the placeholders are replaced with magnetic steel and the adhesive is cured, the bonding tool can be removed and the magnetic steel assembly can be taken out.

[0017] The magnetic steel assembly bonding fixture provided in this embodiment has a reference plate with a reference surface, and the installation axis is set perpendicular to the reference surface, which lays the foundation for ensuring the assembly accuracy of the magnetic steel assembly. When the placeholder corresponding to the notch is replaced with a magnetic steel, the other placeholders that have not been replaced and the already installed magnetic steel play a positioning and limiting role on the magnetic steel to be installed, thereby ensuring the installation accuracy of the magnetic steel. The notch of the pressure plate provides an operating space for replacing the placeholder, while the rest of the pressure plate can limit the placeholder or the already installed magnetic steel from leaving the space between the outer ring and the inner ring, further ensuring the position accuracy of the magnetic steel. That is, the magnetic steel assembly bonding fixture can complete the bonding assembly of the magnetic steel assembly, and the position accuracy of the magnetic steel is guaranteed by providing the reference plate, pressure plate, notch and placeholder. In addition, the magnetic steel assembly bonding fixture only includes a base, a pressure plate and placeholders, etc., with a simple structure and easy operation.

[0018] The second object of the present invention is to provide a method for bonding a magnetic steel assembly to solve the technical problem that the magnetic steel gap of the magnetic steel assembly produced by the prior art is uneven, which affects the performance of the motor.

[0019] The magnetic steel assembly bonding method provided by the present invention uses the magnetic steel assembly bonding tool to bond the magnetic steel assembly, including the following steps:

[0020] A support plate is mounted on the mounting shaft, wherein the support plate is annular and has an inner diameter larger than an outer diameter of the mounting shaft, and a gap for containing glue is formed between the support plate and the side wall of the mounting shaft;

[0021] Put the inner ring and outer ring onto the mounting shaft of the base, and place the same number of placeholders as the number of magnets between the outer ring and the inner ring;

[0022] Place a pressure plate above the placeholders and align the notch of the pressure plate with one of the placeholders, and connect the pressure plate to the base to prevent the placeholder from leaving the space between the outer ring and the inner ring;

[0023] Use the magnet coated with adhesive to replace the placeholder corresponding to the notch of the pressure plate;

[0024] Rotate the pressure plate and align its notch with the next placeholder, repeating the previous step until all placeholders are replaced with magnets;

[0025] After the adhesive is cured, remove the magnetic steel assembly.

[0026] The magnetic steel assembly bonding method provided by the present invention uses the above-mentioned magnetic steel assembly bonding tool to bond the magnetic steel assembly. The position accuracy of the magnetic steel in the produced magnetic steel assembly is high, which is beneficial to improving the performance of the motor and is simple to operate.

[0027] Furthermore, the magnetic steel assembly bonding method further includes: after aligning the notch of the pressure plate with the next placeholder, first pressing the installed magnetic steel and then replacing the placeholder. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0029] Figure 1 It is a structural diagram of the magnetic steel assembly;

[0030] Figure 2 A schematic diagram of the structure of a magnetic steel assembly bonding tool provided in an embodiment of the present invention, wherein the ejector is not shown;

[0031] Figure 3 A schematic structural diagram of a base of a magnetic steel assembly bonding tool provided in an embodiment of the present invention;

[0032] Figure 4 A schematic diagram of the structure of the support plate of the magnetic steel assembly bonding tool provided by an embodiment of the present invention when it is sleeved on the mounting shaft of the base;

[0033] Figure 5 This is a schematic diagram of a partial structure of a magnetic steel assembly bonding tool provided in an embodiment of the present invention;

[0034] Figure 6 The second schematic diagram of the partial structure of the magnetic steel assembly bonding tool provided in an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of one of the steps of the magnetic steel assembly bonding method provided in an embodiment of the present invention;

[0036] Figure 8 This is a second schematic diagram of the steps of the magnetic steel assembly bonding method provided in an embodiment of the present invention;

[0037] Figure 9 A flow chart of a method for bonding magnetic steel components provided in an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 100 - base; 110 - reference plate; 111 - second through hole; 120 - mounting shaft; 121 - fixing hole;

[0040] 200- pallet;

[0041] 300-pressing plate; 310-notch; 320-first through hole;

[0042] 400-placeholder; 410-threaded hole;

[0043] 500-first fixing member; 600-auxiliary member; 700-pressing member; 800-second fixing member;

[0044] 910-outer ring; 930-inner ring; 920-magnetic steel. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following detailed description of the specific embodiments of the present invention is given in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0046] Figure 1 It is a structural diagram of the magnetic steel component. Figure 1 As shown, the magnetic steel assembly includes an outer ring 910, an inner ring 930, and a plurality of magnetic steels 920 disposed therebetween and uniformly arranged along the circumferential direction.

[0047] Figure 2 A schematic diagram of the structure of the magnetic steel assembly bonding tool provided in this embodiment, wherein the ejector is not shown; Figure 3 A schematic structural diagram of the base of the magnetic steel assembly bonding tool provided in this embodiment;

[0048] Figure 5 This is one of the partial structural diagrams of the magnetic steel assembly bonding tool provided in this embodiment; Figure 6 This is the second partial structural diagram of the magnetic steel assembly bonding tool provided in this embodiment.

[0049] This embodiment provides a magnetic steel assembly bonding tool, such as Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, the magnetic steel assembly bonding tool includes: a base 100, a pressure plate 300 and a plurality of placeholders 400; wherein the base 100 includes a reference plate 110 and a mounting shaft 120, the mounting shaft 120 is vertically arranged on the reference surface of the reference plate 110, and the outer ring 910 and the inner ring 930 can be movably mounted on the mounting shaft 120; the placeholders 400 and the magnetic steel 920 have the same structure and number. When bonding the magnetic steel assembly, the placeholders 400 are placed on the outer ring 910. and the inner ring 930 to occupy a place; the pressure plate 300 is connected to the base 100 and can rotate around the axis of the installation shaft 120, and the pressure plate 300 is used to limit the placeholder 400 or the magnet 920 from being separated from the space between the outer ring 910 and the inner ring 930; the pressure plate 300 is provided with a notch 310, and the notch 310 matches the placeholder 400, and the placeholder 400 can be taken out and the magnet 920 can be placed in the space between the outer ring 910 and the inner ring 930 through the notch 310.

[0050] In the magnetic steel assembly bonding tool provided in this embodiment, the base 100 includes a reference plate 110 and a mounting shaft 120; when in use, first, the inner ring 930 and the outer ring 910 of the magnetic steel assembly are both mounted on the mounting shaft 120, and the same number of placeholders 400 as the magnetic steel 920 are placed between the outer ring 910 and the inner ring 930; then, the pressing plate 300 is placed above the outer ring 910, the inner ring 930 and the placeholders 400 and the notch 310 of the pressing plate 300 is aligned with one of the placeholders 400, and the pressing plate 300 is connected to the base 10 0; After connecting the pressure plate 300 and the base 100, the magnet 920 coated with adhesive can be used to replace the placeholder 400 corresponding to the notch 310 of the pressure plate 300; after replacing one placeholder 400, rotate the pressure plate 300 and align its notch 310 with the next placeholder 400, continue to replace the placeholder 400, and so on, all the placeholders 400 can be replaced with the magnet 920; and when all the placeholders 400 are replaced with the magnet 920 and the adhesive is cured, the bonding tool can be removed and the magnet assembly can be taken out.

[0051] In the magnetic steel assembly bonding tool provided in this embodiment, the reference plate 110 has a reference surface, and the installation axis 120 is arranged perpendicular to the reference surface, which lays a foundation for ensuring the assembly accuracy of the magnetic steel assembly; when the placeholder 400 corresponding to the notch 310 is replaced with the magnet 920, the other placeholders 400 that have not been replaced and the magnets 920 that have been installed play a positioning and limiting role on the magnets 920 to be installed, thereby ensuring the installation accuracy of the magnets 920; the notch 310 of the pressure plate 300 provides an operating space for replacing the placeholder 400, and the rest of the pressure plate 300 can limit the placeholder 400 or the installed magnet 920 from being separated from the space between the outer ring 910 and the inner ring 930, further ensuring the position accuracy of the magnet 920. That is, the magnetic steel assembly bonding tool can complete the bonding assembly of the magnetic steel assembly, and ensure the position accuracy of the magnetic steel 920 by setting the reference plate 110, the pressure plate 300, the notch 310 and the placeholder 400; in addition, the magnetic steel assembly bonding tool only includes the base 100, the pressure plate 300 and the placeholder 400, etc., with a simple structure and easy operation.

[0052] Specifically, in this embodiment, Figure 5 and Figure 6 As shown, the magnetic steel assembly bonding tool also includes a first fixing member 500. The mounting shaft 120 is provided with a fixing hole 121 extending along its axial direction. When the first fixing member 500 is fixed to the fixing hole 121, it can prevent the pressure plate 300 from separating from the mounting shaft 120 in a direction away from the reference plate 110. The first fixing member 500 acts as a limit for the pressure plate 300 and the outer ring 910, inner ring 930, placeholder 400, and magnetic steel 920 below the pressure plate 300, thereby ensuring smooth bonding and assembly.

[0053] More specifically, in this embodiment, the pressing plate 300 is annular, and the first fixing member 500 passes through the central hole of the pressing plate 300 and is fixed to the fixing hole 121 .

[0054] Specifically, in this embodiment, Figure 2 As shown, the magnetic steel assembly bonding tool further includes a plurality of pressing members 700, and the pressing plate 300 is further provided with a plurality of first through holes 320. The pressing members 700 can pass through the first through holes 320 to press the magnetic steel 920. When a placeholder 400 is replaced and the pressing plate 300 is rotated to the next station, the pressing members 700 can be used to press the already installed magnetic steel 920, thereby effectively preventing the already installed magnetic steel 920 from deviating from the installation position due to the repulsive force after the placeholder 400 to be replaced is removed, thereby ensuring the position accuracy of the already installed magnetic steel 920; at the same time, after the placeholder 400 is removed, the already installed magnetic steel 920 and the placeholder 400 that has not been replaced both remain in place, which can play a positioning role for the magnetic steel 920 to be installed, so that the magnetic steel 920 to be installed can be quickly and accurately installed into the empty space.

[0055] Specifically, in this embodiment, continue as Figure 2 As shown, the magnetic steel assembly bonding tool also includes an auxiliary member 600, which can be detachably connected to the pressing plate 300. The auxiliary member 600 is provided with a first through hole 320. The pressing member 700 passes through the first through hole 320 of the auxiliary member 600 and can press the magnetic steel 920 opposite the notch 310. This arrangement ensures that when all magnetic steels 920 are installed in place, they can all be subjected to the pressing force, thereby ensuring the positional accuracy of all magnetic steels 920 in the magnetic steel assembly.

[0056] More specifically, in this embodiment, the magnetic steel assembly bonding tool further includes a second fixing member 800 , and the auxiliary member 600 is further provided with a through hole (not shown in the figure), and the second fixing member 800 passes through the through hole to connect the auxiliary member 600 to the pressure plate 300 .

[0057] More specifically, the pressing plate 300 is provided with a connecting hole, and the second fixing member 800 passes through the through hole and is fixed to the connecting hole, thereby connecting the auxiliary member 600 to the pressing plate 300 .

[0058] Figure 4 This is a schematic diagram of the structure when the support plate of the magnetic steel assembly bonding tool provided in this embodiment is sleeved on the installation axis of the base.

[0059] Specifically, in this embodiment, Figure 4As shown, the magnetic steel assembly bonding tool also includes a support plate 200, which is annular and has an inner diameter greater than the outer diameter of the mounting shaft 120. Under this arrangement, a gap for adhesive can be formed between the support plate 200 and the side wall of the mounting shaft 120, into which excess adhesive on the magnetic steel 920 can flow, thereby effectively avoiding the adverse effects of excess adhesive on the gaps between the magnetic steels 920 and further ensuring the installation accuracy of the magnetic steel 920. In addition, compared to the adhesive solidifying on the reference surface of the base 100, the adhesive solidifying in the sol gap and the support plate 200 is easier to clean and can greatly reduce the adverse effects of cleaning the adhesive on the reference surface, thereby ensuring the accuracy of the assembly reference.

[0060] Specifically, in this embodiment, Figure 3 As shown, the reference plate 110 is provided with at least one second through hole 111, the axis of which is parallel to the axis of the mounting shaft 120. The magnetic steel assembly bonding tool also includes an ejector, which can pass through the second through hole 111 to push the support plate 200 and the magnetic steel assembly on the support plate 200 to a reference surface separated from the reference plate 110. After the adhesive cures, the ejector can be used to simultaneously push the support plate 200 and the magnetic steel assembly away from the reference surface. The support plate 200 can then be gently tapped to remove it from the magnetic steel assembly.

[0061] More specifically, in this embodiment, the number of the second through holes 111 is four. This arrangement allows the support plate 200 and the magnetic steel assembly to be gradually ejected from multiple positions.

[0062] Preferably, the four second through holes 111 are evenly arranged along the circumference of the reference plate 110 .

[0063] Specifically, in this embodiment, Figure 5 As shown, the placeholder 400 is provided with a threaded hole 410, which is provided on the surface of the placeholder 400 that is opposite to the notch 310. In this arrangement, when the placeholder 400 needs to be removed from between the outer ring 910 and the inner ring 930, a connecting member (such as a bolt, etc.) that matches the threaded hole 410 can be screwed into the threaded hole 410 first, and then the placeholder 400 can be removed using the connecting member. This structure is simple and ingenious, and the operation is convenient and quick.

[0064] Figure 9 A flow chart of a method for bonding magnetic steel components provided in an embodiment of the present invention.

[0065] This embodiment also provides a method for bonding a magnetic steel assembly, using the above-mentioned magnetic steel assembly bonding tool to bond the magnetic steel assembly, such as Figure 9 As shown, the magnetic steel assembly bonding method includes the following steps:

[0066] S300: Mount the inner ring 930 and the outer ring 910 on the mounting shaft 120 of the base 100, and place the same number of placeholders 400 as the number of magnets 920 between the outer ring 910 and the inner ring 930;

[0067] S400: Place the pressing plate 300 above the placeholders 400 and align the notch 310 of the pressing plate 300 with one of the placeholders 400, connecting the pressing plate 300 and the base 100 to prevent the placeholder 400 from leaving the space between the outer ring 910 and the inner ring 930;

[0068] S500: Use the magnetic steel 920 coated with adhesive to replace the placeholder 400 corresponding to the notch 310 of the pressure plate 300;

[0069] S600: Rotate the pressing plate 300 and align its notch 310 with the next placeholder 400, and repeat the previous step until all placeholders 400 are replaced with the magnetic steel 920;

[0070] S700 After the adhesive is cured, remove the magnetic steel assembly.

[0071] Specifically, in this embodiment, the magnetic steel assembly bonding method further includes:

[0072] After the notch 310 of the pressing plate 300 is aligned with the next placeholder 400 , the already installed magnet 920 is first pressed and then the placeholder 400 is replaced.

[0073] Figure 7 This is a schematic diagram of one of the steps of the magnetic steel assembly bonding method provided in this embodiment; Figure 8 This is the second step schematic diagram of the magnetic steel assembly bonding method provided in this embodiment.

[0074] More specifically, if Figure 7 and Figure 8 As shown, after replacing a placeholder 400 and rotating the pressing plate 300 to the next station, the pressing member 700 can be used to pass through the first through-hole 320 of the pressing plate 300 to press the already installed magnet 920. The magnet 920 facing the notch 310 can be pressed by the auxiliary member 600 that can be detachably connected to the pressing plate 300 and the pressing member 700 that can pass through the first through-hole 320 of the auxiliary member 600.

[0075] Specifically, in this embodiment, the magnetic steel assembly bonding method further includes:

[0076] S100 Before fitting the inner ring 930 and the outer ring 910 onto the mounting shaft 120 of the base 100 , fit the support plate 200 onto the mounting shaft 120 , wherein the support plate 200 is annular and has an inner diameter greater than an outer diameter of the mounting shaft 120 .

[0077] Specifically, in this embodiment, the magnetic steel assembly bonding method further includes:

[0078] Before fitting the inner ring 930 and outer ring 910 onto the mounting shaft 120 of the base 100, spray a release agent onto the base 100, support plate 200, and pressure plate 300 of the magnetic steel assembly bonding fixture. This facilitates removal of the magnetic steel assembly and effectively prevents damage to the magnetic steel assembly and bonding fixture during the separation process.

[0079] Finally, it should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0080] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to the embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is to be construed in the widest manner consistent with the principles and novel features disclosed herein.

Claims

1. A magnetic steel assembly bonding tool, the magnetic steel assembly comprising an outer ring (910), an inner ring (930), and a plurality of magnetic steels (920) disposed between the outer ring and uniformly arranged along the circumferential direction, characterized in that: The magnetic steel assembly bonding tool comprises: A base (100), the base (100) comprising a reference plate (110) and a mounting shaft (120), the mounting shaft (120) being vertically arranged on a reference plane of the reference plate (110), and the outer ring (910) and the inner ring (930) being capable of being movably fitted on the mounting shaft (120); a plurality of placeholders (400), the placeholders (400) having the same structure and number as the magnetic steel (920), and when bonding the magnetic steel assembly, the placeholders (400) are placed between the outer ring (910) and the inner ring (930) to occupy space; and A pressure plate (300), the pressure plate (300) is connected to the base (100) and can rotate around the axis of the installation shaft (120), and the pressure plate (300) is used to limit the placeholder (400) or the magnetic steel (920) from being separated from the space between the outer ring (910) and the inner ring (930); the pressure plate (300) is annular, and a notch (310) is provided on the outer edge, and the notch (310) matches the placeholder (400), and the placeholder (400) can be removed through the notch (310) and the magnetic steel (920) can be placed in the space between the outer ring (910) and the inner ring (930); The magnetic steel assembly bonding tool further comprises a support plate (200), the support plate (200) is annular, the inner diameter of the support plate (200) is larger than the outer diameter of the installation shaft (120), and a glue-containing gap is formed between the support plate (200) and the side wall of the installation shaft (120); The reference plate (110) is provided with at least one second through hole (111), and the axis of the second through hole (111) is parallel to the axis of the installation shaft (120); The magnetic steel assembly bonding tool further comprises an ejector, which is capable of passing through the second through hole (111) to push the support plate (200) and the magnetic steel assembly on the support plate (200) to a reference surface separated from the reference plate (110).

2. The magnetic steel assembly bonding tool according to claim 1, characterized in that: The magnetic steel assembly bonding tool further comprises a first fastener (500), the mounting shaft (120) is provided with a fixing hole (121) extending along its axial direction, and after the first fastener (500) is fixed to the fixing hole (121), it can limit the pressing plate (300) from detaching from the mounting shaft (120) in a direction away from the reference plate (110).

3. The magnetic steel assembly bonding tool according to claim 1 or 2, characterized in that: The magnetic steel assembly bonding tool further comprises a plurality of pressing members (700), and the pressing plate (300) is further provided with a plurality of first through holes (320), and the pressing members (700) are capable of pressing the magnetic steel (920) by passing through the first through holes (320).

4. The magnetic steel assembly bonding tool according to claim 3, characterized in that: The magnetic steel assembly bonding tool further includes an auxiliary part (600), wherein the auxiliary part (600) can be detachably connected to the pressing plate (300), and the auxiliary part (600) is provided with the first through hole (320). The pressing part (700) passes through the first through hole (320) on the auxiliary part (600) and can press the magnetic steel (920) opposite to the notch (310).

5. The magnetic steel assembly bonding tool according to claim 1 or 2, characterized in that: The placeholder (400) is provided with a threaded hole (410), and the threaded hole (410) is provided on a surface of the placeholder (400) that is opposite to the notch (310).

6. A method for bonding a magnetic steel assembly, characterized in that: The magnetic steel assembly bonding tool according to any one of claims 1 to 5 is used to bond the magnetic steel assembly, comprising: A support plate (200) is mounted on the mounting shaft (120), wherein the support plate (200) is annular and has an inner diameter greater than an outer diameter of the mounting shaft (120), and a gap for containing glue is formed between the support plate (200) and a side wall of the mounting shaft (120); The inner ring (930) and the outer ring (910) are mounted on the mounting shaft (120) of the base (100), and the same number of placeholders (400) as the number of magnetic steels (920) are placed between the outer ring (910) and the inner ring (930); Placing the pressure plate (300) above the placeholders (400) and aligning the notch (310) of the pressure plate (300) with one of the placeholders (400), connecting the pressure plate (300) and the base (100) to limit the placeholders (400) from being separated from the space between the outer ring (910) and the inner ring (930); Using a magnetic steel (920) coated with adhesive to replace the placeholder (400) corresponding to the notch (310) of the pressure plate (300); Rotate the pressing plate (300) and align its notch (310) with the next placeholder (400), and repeat the previous step until all placeholders (400) are replaced with magnetic steel (920); After the adhesive is cured, remove the magnetic steel assembly.

7. The method for bonding magnetic steel components according to claim 6, wherein: The magnetic steel assembly bonding method further includes: After the notch (310) of the pressing plate (300) is aligned with the next placeholder (400), the already installed magnetic steel (920) is first pressed and then the placeholder (400) is replaced.

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