Halbach wireless magnetizing ring assembly process

Abstract

The application provides a Halbach wireless magnetizing ring assembly process, the wireless magnetizing ring is composed of a magnetic separation ring steel sheet and a plurality of Halbach units, each Halbach unit comprises a plurality of single magnets; the assembly process comprises the following steps: S1: unit assembly: a plurality of single magnets are placed on a first positioning groove of a first jig according to a Halbach arrangement sequence and are glued, a first pushing tool is used to push and combine to form a whole, and after the glue is cured and removed, a Halbach unit is formed; S2: whole assembly: a plurality of Halbach units are arranged in a ring shape in a second positioning groove of a second jig, the upper surface of the Halbach unit and the side surface of two adjacent Halbach units are glued, a second pushing tool is used to push and combine to form a magnetic ring assembly, the magnetic ring assembly is bonded with the magnetic separation ring steel sheet on the upper surface, and after the glue is cured and removed, a Halbach wireless magnetizing ring is formed. The application can improve assembly precision, reduce assembly difficulty, and improve product performance and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of Heilbeck magnetic component processing technology, and in particular to a Heilbeck wireless magnetizing ring assembly process. Background Technology

[0002] Currently, the wireless charging rings commonly used in the field of wireless charging are mostly bipolar magnetic rings. They adopt a non-magnetic assembly method, which involves arranging non-magnetic tiles one by one into the positioning slots of the positioning plates, then using an adhesive PET film to fix the non-magnetic tiles, and then using static pressure treatment to ensure that all non-magnetic tiles are firmly attached to the PET film. Finally, the non-magnetic tiles are magnetized using a bipolar charging head.

[0003] In terms of magnetic performance, Heilbeck wireless magnetizing rings offer significant advantages over traditional bipolar magnetizing rings, providing superior magnetic properties, stronger attraction, and higher positioning accuracy. For example, a magnetic component and charging unit disclosed in Chinese Patent No. CN202220420812.1 effectively suppresses magnetic leakage by setting a bipolar magnetic circuit structure, significantly improving magnetic field utilization and thus enhancing the magnetic attraction effect.

[0004] However, the Heilbeck wireless magnetizing ring requires saturating and magnetizing each individual magnet before assembly. Because each tile possesses a strong magnet and exhibits strong repulsive force, assembly is difficult, precision is hard to control, and this can easily lead to fluctuations in product performance. Summary of the Invention

[0005] The purpose of this invention is to provide a Heilbeck wireless magnetizing ring assembly process, which improves assembly accuracy and reduces assembly difficulty by disassembling components for distributed assembly, thereby improving product performance and production efficiency.

[0006] To achieve the above objectives, the solution of the present invention is as follows:

[0007] A process for assembling a Helbeck wireless magnetizing ring, wherein the wireless magnetizing ring is composed of a magnetically shielded circular steel sheet and multiple Helbeck units arranged in a ring, each Helbeck unit including multiple pre-magnetized individual magnets;

[0008] The assembly process includes the following steps:

[0009] S1: Unit assembly: Multiple single magnets are placed on the first positioning slot of the first fixture in the order of Heilbeck arrangement and glue is applied. The multiple single magnets are pushed together to form a whole by the first pusher tool. After the glue is cured and removed, a Heilbeck unit is formed.

[0010] S2: Overall assembly: Arrange multiple Hellbeck units in a ring in the second positioning groove of the second fixture, apply adhesive to the upper surface of each Hellbeck unit and the sides of two adjacent Hellbeck units, and push the multiple Hellbeck units together to form a magnetic ring assembly through the second pusher tool. Attach a magnetic shielding ring steel sheet to the upper surface of the magnetic ring assembly. After the adhesive cures and is removed, a Hellbeck wireless magnetizing ring is formed.

[0011] In a preferred embodiment, step S1 further includes a non-magnetic positioning plate and a fixture cover plate. The first fixture and the fixture cover plate are made of iron material, and the surfaces of the first fixture and the fixture cover plate are coated with a ceramic coating. The non-magnetic positioning plate is placed on the first fixture, and a first positioning groove is formed on the non-magnetic positioning plate. The non-magnetic positioning plate and the first fixture are limited by a fixing pin. The shape of the first positioning groove matches the shape of the Heilbeck unit. The fixture cover plate is placed on the non-magnetic positioning plate so that the first fixture and the fixture cover plate tend to attract each other through the attraction of a single magnet.

[0012] In a preferred embodiment, the first pushing fixture includes a spring pressure head and a spring push rod. When the fixture cover plate is placed on the non-magnetic positioning plate, the spring pressure head presses against the fixture cover plate, and the spring push rod extends into the first positioning groove to push multiple single magnets together to form a whole.

[0013] In the preferred embodiment, in step S1, the first pushing tool pushes multiple single magnets together to form a whole and then puts it into a tunnel oven to cure the adhesive. The temperature of the tunnel oven is 80°C and the curing time is 60 minutes.

[0014] In a preferred embodiment, step S2 further includes a stripping template and a positioning plate. The second fixture is made of iron, while the stripping template and positioning plate are made of stainless steel. The stripping template is placed on the second fixture. The stripping template and positioning plate are respectively provided with a first clearance hole and a second clearance hole. The diameter of the first clearance hole is smaller than the diameter of the second clearance hole. When the positioning plate is placed on the stripping template, the axes of the first clearance hole and the second clearance hole coincide to form a second positioning groove on the stripping template. The positioning plate forms multiple limiting protrusions radially at the edge of the second clearance hole. Each Helbeck unit is arranged between two limiting protrusions. The stripping template, positioning plate, and second fixture are limited by movable pins.

[0015] In a preferred embodiment, step S2 further includes a magnet positioning piece, and the second pushing tooling includes a pushing cylinder and a pushing plate. The pushing plate is disposed at the output end of the pushing cylinder, and the shape of the pushing plate matches the outer peripheral shape of the magnetic ring assembly.

[0016] After applying adhesive to the upper surface of each Helbeck unit and the sides of two adjacent Helbeck units, the positioning plate and movable pin are removed. Multiple pusher cylinders drive multiple push plates to simultaneously abut against multiple Helbeck units to form a magnetic ring assembly. After the push is completed, a magnetic positioning plate is placed on the demolding template. The shape of the magnetic positioning plate matches the shape of the magnetic ring assembly.

[0017] In a preferred embodiment, step S2 further includes a limiting block, the shape of which matches the inner circumferential shape of the magnetic ring assembly;

[0018] When bonding the magnetic shielding ring steel sheet to the upper surface of the magnetic ring assembly, place the limiting block on the second fixture. At this time, the limiting block is located on the inner circumference of the magnetic ring assembly. The magnetic shielding ring steel sheet is placed on the limiting block and bonded to the upper surface of the magnetic ring assembly under the attraction of the magnetic ring assembly.

[0019] In a preferred embodiment, the limiting block is made of bakelite material.

[0020] In a preferred embodiment, in step S2, after the magnetic shielding ring steel sheet is bonded to the upper surface of the magnetic ring assembly, it is placed in a tunnel oven to cure the adhesive. The temperature of the tunnel oven is 80°C and the curing time is 60 minutes.

[0021] In a preferred embodiment, the adhesive is an epoxy resin adhesive.

[0022] After adopting the above solution, the beneficial effects of the present invention are as follows:

[0023] In this invention, during unit assembly, multiple single magnets are placed in the first positioning slot of the first fixture according to the Halebeck arrangement. During overall assembly, multiple Halebeck units are arranged in a ring in the second positioning slot of the second fixture. By fully utilizing the positioning functions of the first and second fixtures, and using the first and second pushing fixtures to push the single magnets and Halebeck units together respectively, the accuracy and precision of the assembly are ensured, thereby improving the performance of the assembled product. Furthermore, by distributing the assembly into components, the number of strong single magnets processed simultaneously can be reduced, avoiding excessive influence of repulsive forces on the assembly process, effectively reducing assembly difficulty and improving production efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of an embodiment of the present invention in which multiple single magnets are placed in the first positioning slot of the first fixture according to the Heilbeck arrangement and pushed together by the first pusher tool to form a whole;

[0025] Figure 2 This is a schematic diagram of how multiple single magnets on a first fixture are pushed together by a first pushing tool in an embodiment of the present invention;

[0026] Figure 3This is a schematic diagram of the Heilbeck unit in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the template and positioning plate being placed on the second fixture in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of removing the template and positioning plate from the second fixture in an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of a series of Helbeck units arranged in a ring in the second positioning groove formed by the template in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of removing the positioning plate and movable pin from the second fixture and covering the second fixture with a magnetic positioning piece in an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of pushing multiple Heilbeck units on the second fixture together using the second pushing tool in an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of assembling a magnetic shielding ring steel sheet by placing a limiting block on the protrusion of the second fixture in an embodiment of the present invention.

[0033] Figure 10 This is a schematic diagram of the wireless magnetizing ring in an embodiment of the present invention.

[0034] Label Explanation:

[0035] 1. Wireless magnetizing ring; 11. Magnetic shielding circular steel sheet; 12. Helbeck unit; 121. Single magnet; 13. Magnetic ring assembly;

[0036] 20. First fixture; 21. First positioning groove; 22. Non-magnetic positioning piece; 23. Fixture cover plate; 24. Fixing pin;

[0037] 3. First pusher fixture; 31. Spring pressure head; 32. Spring push rod; 33. Base; 34. Support frame; 35. Drive cylinder; 36. Fixed seat;

[0038] 40. Second fixture; 41. Second positioning groove; 42. Template release; 421. First clearance hole; 43. Positioning plate; 431. Second clearance hole; 44. Movable pin; 45. Limiting protrusion; 46. Protrusion; 47. Magnetic positioning piece;

[0039] 5. Second pusher fixture; 51. Pusher cylinder; 52. Push plate;

[0040] 6. Limit block. Detailed Implementation

[0041] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0042] This embodiment provides a Hellbeck wireless magnetizing ring assembly process. The wireless magnetizing ring 1 is composed of a magnetically shielded circular steel sheet 11 and multiple Hellbeck units 12 arranged in a ring. Each Hellbeck unit 12 includes multiple pre-magnetized single magnets 121.

[0043] The assembly process includes the following steps:

[0044] S1: Unit assembly: Multiple single magnets 121 are placed on the first positioning groove 21 of the first fixture 20 according to the Heilbeck arrangement and glue is applied. Multiple single magnets 121 are pushed together to form a whole by the first pusher tool 3. After the glue is cured and removed, the Heilbeck unit 12 is formed.

[0045] S2: Overall assembly: Multiple Hellbeck units 12 are arranged in a ring in the second positioning groove 41 of the second fixture 40. Adhesive is applied to the upper surface of each Hellbeck unit 12 and the side surfaces of two adjacent Hellbeck units 12. Multiple Hellbeck units 12 are pushed together by the second pusher tool 5 to form a magnetic ring assembly 13. A magnetic shielding ring steel sheet 11 is bonded to the upper surface of the magnetic ring assembly 13. After the adhesive is cured and removed, a Hellbeck wireless charging magnetic ring 1 is formed.

[0046] Specifically, such as Figure 3 and Figure 10 As shown, the wireless magnetizing ring 1 in this embodiment consists of a magnetically shielding circular steel sheet 11 and 48 single magnets 121, while the number of Heilbeck units 12 is 16, with each Heilbeck unit 12 consisting of 3 single magnets 121. Of course, the number can be adjusted according to actual needs in other embodiments.

[0047] This implementation makes full use of the positioning functions of the first fixture 20 and the second fixture 40, and pushes the single magnet 121 and the Heilbeck unit 12 together through the first pusher fixture 3 and the second pusher fixture 5 respectively, which can ensure the accuracy and precision of assembly, thereby improving the performance of the assembled product.

[0048] Furthermore, by disassembling and distributing the components for assembly, the number of strong magnetic single magnets 121 that can be processed at the same time can be reduced, avoiding excessive influence of repulsive forces on the assembly process, effectively reducing assembly difficulty, and improving production efficiency.

[0049] Furthermore, the method of disassembling components and distributing them for assembly allows different assembly steps to be carried out in parallel to some extent. For example, during the curing process of the glue in unit assembly, preparation work for the assembly of other Helbeck units 12 can be carried out simultaneously, or during the overall assembly, some components that have completed unit assembly can be pre-treated. This can make full use of production time and resources, shorten the overall production cycle, and further improve production efficiency.

[0050] like Figure 1 As shown, step S1 also includes a non-magnetic positioning plate 22 and a fixture cover plate 23. The first fixture 20 and the fixture cover plate 23 are made of iron material. The surfaces of the first fixture 20 and the fixture cover plate 23 are coated with a ceramic coating. The non-magnetic positioning plate 22 is placed on the first fixture 20. A first positioning groove 21 is formed on the non-magnetic positioning plate 22. The non-magnetic positioning plate 22 and the first fixture 20 are limited by a fixing pin 24. The shape of the first positioning groove 21 matches the shape of the Heilbeck unit 12. The fixture cover plate 23 is placed on the non-magnetic positioning plate 22 so that the first fixture 20 and the fixture cover plate 23 tend to attract each other through the attraction of a single magnet 121.

[0051] In this embodiment, both the first fixture 20 and the fixture cover plate 23 are coated with a ceramic coating. This prevents damage caused by hard contact between the single magnet 121 and the first fixture 20 and fixture cover plate 23 when the first pusher tool 3 pushes the single magnet 121 together, thus avoiding problems that could affect the quality of subsequent products. Furthermore, since the single magnet 121 requires adhesive application, the ceramic coating also prevents the adhesive from adhering to the first fixture 20 and fixture cover plate 23.

[0052] Furthermore, when applying adhesive to the individual magnets 121, since each individual magnet 121 is fan-shaped, it is preferable to apply adhesive along the contour on the curved side of the individual magnet 121. When the fixture cover plate 23 is placed on the non-magnetic positioning plate 22, since the first fixture 20 and the fixture cover plate 23 are made of iron, the attraction force of the individual magnets 121 can cause the first fixture 20 and the fixture cover plate 23 to tend to attract each other, ensuring the flatness of the Heilbeck unit 12 during assembly and guaranteeing the accuracy and precision of the assembly.

[0053] like Figure 2 As shown, the first pushing fixture 3 includes a spring pressure head 31 and a spring push rod 32. When the fixture cover plate 23 is placed on the non-magnetic positioning plate 22, the spring pressure head 31 presses against the fixture cover plate 23, and the spring push rod 32 extends into the first positioning groove 21 to push multiple single magnets 121 together to form a whole.

[0054] In this embodiment, the first positioning groove 21 is open on the side of the first fixture 20 to allow the spring push rod 32 to extend into it. Of course, the first pushing fixture 3 also includes other peripheral components, such as the base 33, the support frame 34, the drive cylinder 35, the fixed seat 36, etc., which are well known to those skilled in the art and will not be described in detail here.

[0055] In this embodiment, each spring push rod 32 is independently configured, meaning that one spring push rod 32 is used to engage only one Heilbeck unit 12. Since the fixture cover plate 23 covers the non-magnetic positioning plate 22, and the spring pressure head 31 abuts against the fixture cover plate 23, the space between the fixture cover plate 23, the non-magnetic positioning plate 22, and the first fixture 20 is fixed when the spring push rod 32 is engaged. This effectively ensures the consistency of each Heilbeck unit 12 and guarantees assembly accuracy. Of course, the number of the first positioning grooves 21 and the corresponding spring push rods 32 on the first fixture 20 is not limited.

[0056] Furthermore, in step S1, after the first pushing fixture 3 pushes multiple single magnets 121 together to form a whole, it is placed in a tunnel oven to cure the adhesive. The temperature of the tunnel oven is 80°C, and the curing time is 60 minutes, which ensures the complete curing of the adhesive and guarantees the smooth progress of the subsequent assembly process. Of course, in other embodiments, the curing equipment and curing time can be adjusted according to actual needs.

[0057] like Figures 4 to 6 As shown, step S2 also includes a stripping template 42 and a positioning plate 43. The second fixture 40 is made of iron, while the stripping template 42 and the positioning plate 43 are made of stainless steel. The stripping template 42 covers the second fixture 40. The stripping template 42 and the positioning plate 43 are respectively provided with a first clearance hole 421 and a second clearance hole 431. The diameter of the first clearance hole 421 is smaller than the diameter of the second clearance hole 431. When the positioning plate 43 covers the stripping template 42, the axes of the first clearance hole 421 and the second clearance hole 431 coincide to form a second positioning groove 41 on the stripping template 42. The positioning plate 43 radially forms multiple limiting protrusions 45 at the edge of the second clearance hole 431. Each Helbeck unit 12 is arranged between two limiting protrusions 45. The stripping template 42, the positioning plate 43, and the second fixture 40 are limited by movable pins 44.

[0058] In this embodiment, the template 42 is covered on the second fixture 40. The template 42 and the positioning plate 43 are respectively provided with a first clearance hole 421 and a second clearance hole 431. The diameter of the first clearance hole 421 is smaller than the diameter of the second clearance hole 431. Therefore, when the positioning plate 43 is covered on the template 42, the positioning plate 43 and the template 42 form a stepped surface for placing the Helbeck unit 12 at the edges of the first clearance hole 421 and the second clearance hole 431. The positioning plate 43 radially forms a plurality of limiting protrusions 45 at the edge of the second clearance hole 431. Each Helbeck unit 12 is arranged between two limiting protrusions 45, that is, forming a second positioning groove 41.

[0059] Since the second fixture 40 is made of iron, when the Helbeck unit 12 is placed in the second positioning groove 41 of the stripping template 42, the Helbeck unit 12 can automatically adhere to the stripping template 42. The stripping template 42 and the positioning plate 43 are made of stainless steel, which also facilitates the subsequent unloading process.

[0060] Of course, in order to achieve better positioning, the second fixture 40 in this embodiment forms a protrusion 46 at the position corresponding to the first clearance hole 421. The protrusion 46 is generally cylindrical, such as... Figure 5 As shown, the sidewall of the protruding post 46 is used to limit the inner surface of the Helbeck unit 12, thereby improving the accuracy of assembly.

[0061] In this embodiment, the limiting protrusion 45 is cubic in shape, with a length, width and height of 0.5mm each, but is not limited to this, so that the glue can be better adhered to the sides of two adjacent Heilbeck units 12.

[0062] like Figure 7 and Figure 8 As shown, step S2 also includes a magnet positioning piece 47. The second pushing tool 5 includes a pushing cylinder 51 and a pushing plate 52. The pushing plate 52 is disposed at the output end of the pushing cylinder 51, and the shape of the pushing plate 52 matches the outer peripheral shape of the magnetic ring assembly 13.

[0063] After applying adhesive to the upper surface of each Helbeck unit 12 and the sides of two adjacent Helbeck units 12, the positioning plate 43 and the movable pin 44 are removed. Multiple pusher cylinders 51 drive multiple pusher plates 52 to simultaneously abut against multiple Helbeck units 12 to form a magnetic ring assembly 13. After the push is completed, a magnetic positioning piece 47 is placed on the release template 42. The shape of the magnetic positioning piece 47 matches the shape of the magnetic ring assembly 13.

[0064] Specifically, in this embodiment, there are four pusher cylinders 51 and four pusher plates 52. One end of the pusher plate 52 is located at the output end of the pusher cylinder 51, and the other end of the pusher plate 52 is provided with an arc-shaped pushing part. The four pusher plates 52 simultaneously abut against multiple Hellbeck units 12 to ensure uniform force distribution and improve assembly accuracy. After the multiple Hellbeck units 12 are assembled, the magnetic positioning piece 47 ensures that the magnetic ring assembly 13 will not be displaced during subsequent assembly.

[0065] like Figure 9 As shown, step S2 further includes a limiting block 6, the shape of which matches the inner circumferential shape of the magnetic ring assembly 13;

[0066] When bonding the magnetic shielding circular steel sheet 11 to the upper surface of the magnetic ring assembly 13, the limiting block 6 is placed on the second fixture 40. At this time, the limiting block 6 is located on the inner circumference of the magnetic ring assembly 13. The magnetic shielding circular steel sheet 11 is placed on the limiting block 6 and bonded to the upper surface of the magnetic ring assembly 13 under the attraction of the magnetic ring assembly 13.

[0067] In this embodiment, the limiting block 6 is placed on the protrusion 46 of the second fixture 40. Therefore, the shape of the limiting block 6 is also generally cylindrical. Since multiple pusher cylinders 51 drive multiple pusher plates 52 to simultaneously abut against multiple Heilbeck units 12 to form magnetic ring assemblies 13, and the magnet positioning piece 47 has been fitted after the push is completed, when the magnetic shielding ring steel sheet 11 is fitted on the limiting block 6 and bonded to the upper surface of the magnetic ring assembly 13 under the attraction of the magnetic ring assembly 13, the limiting block 6 and the magnet positioning piece 47 can limit the magnetic shielding ring steel sheet 11, ensuring the accuracy of the bonding between the magnetic shielding ring steel sheet 11 and the magnetic ring assembly 13.

[0068] Furthermore, the limiting block 6 is made of bakelite material, but it is not limited to this and can be adjusted according to actual needs in other embodiments.

[0069] Furthermore, in step S2, after the magnetic shielding circular steel sheet 11 is bonded to the upper surface of the magnetic ring assembly 13, it is placed in a tunnel oven to cure the adhesive. The temperature of the tunnel oven is 80°C, and the curing time is 60 minutes, which ensures complete curing of the adhesive and guarantees the performance of the assembled product. Of course, in other embodiments, the curing equipment and curing time can be adjusted according to actual needs.

[0070] After the adhesive has cured, the limiting block 6, the magnetic positioning piece 47, and the template 42 are removed from the second fixture 40. Then, the wireless magnetic ring 1 on the second fixture 40 is removed to remove the adhesive, thus completing the entire assembly process. Because the magnetic ring 1 and the second fixture 40 have a strong attraction, the magnetic ring 1 is prone to deformation during material unloading. Therefore, the template 42 can easily complete the unloading process, resulting in a simple structure and ingenious design.

[0071] Furthermore, the adhesive is an epoxy resin adhesive, but it is not limited to this, and adjustments can be made according to actual needs in other embodiments.

[0072] The directional terms used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. All equivalent changes made based on the key design features of this case shall fall within the protection scope of this case.

Claims

1. A process for assembling a Heilbeck wireless magnetizing ring, characterized in that: The wireless magnetizing ring consists of a magnetically shielded circular steel sheet and multiple ring-arranged Heilbeck units, each of which includes multiple pre-magnetized individual magnets. The assembly process includes the following steps: S1: Unit assembly: Multiple single magnets are placed on the first positioning slot of the first fixture in the order of Heilbeck arrangement and glue is applied. The multiple single magnets are pushed together to form a whole by the first pusher tool. After the glue is cured and removed, a Heilbeck unit is formed. S2: Overall assembly: Arrange multiple Hellbeck units in a ring in the second positioning groove of the second fixture, apply glue to the upper surface of each Hellbeck unit and the sides of two adjacent Hellbeck units, and push the multiple Hellbeck units together to form a magnetic ring assembly through the second pusher tool. Attach a magnetic shielding ring steel sheet to the upper surface of the magnetic ring assembly. After the glue cures and is removed, a Hellbeck wireless magnetizing ring is formed. Step S1 also includes a non-magnetic positioning plate and a fixture cover plate. The first fixture and the fixture cover plate are made of iron material. The surfaces of the first fixture and the fixture cover plate are coated with a ceramic coating. The non-magnetic positioning plate is placed on the first fixture. A first positioning groove is opened on the non-magnetic positioning plate. The non-magnetic positioning plate and the first fixture are limited by a fixing pin. The shape of the first positioning groove matches the shape of the Heilbeck unit. The fixture cover plate is placed on the non-magnetic positioning plate so that the first fixture and the fixture cover plate tend to attract each other by the attraction of a single magnet. Step S2 also includes a stripping template and a positioning plate. The second fixture is made of iron, while the stripping template and positioning plate are made of stainless steel. The stripping template is placed on the second fixture. The stripping template and positioning plate are respectively provided with a first clearance hole and a second clearance hole. The diameter of the first clearance hole is smaller than the diameter of the second clearance hole. When the positioning plate is placed on the stripping template, the axes of the first clearance hole and the second clearance hole coincide to form a second positioning groove on the stripping template. The positioning plate has multiple limiting protrusions radially formed at the edge of the second clearance hole. Each Helbeck unit is arranged between two limiting protrusions. The stripping template, positioning plate, and second fixture are limited by movable pins.

2. The assembly process for a Heilbeck wireless magnetizing ring as described in claim 1, characterized in that: The first pushing fixture includes a spring pressure head and a spring push rod. When the fixture cover is placed on the non-magnetic positioning plate, the spring pressure head presses against the fixture cover, and the spring push rod extends into the first positioning groove to push multiple single magnets together to form a whole.

3. The assembly process for a Heilbeck wireless magnetizing ring as described in claim 1, characterized in that: In step S1, the first pushing tool pushes multiple single magnets together to form a whole and then puts it into a tunnel oven to cure the adhesive. The temperature of the tunnel oven is 80°C and the curing time is 60 minutes.

4. The assembly process for a Heilbeck wireless magnetizing ring as described in claim 1, characterized in that: Step S2 also includes a magnetic positioning piece. The second pushing tooling includes a pushing cylinder and a pushing plate. The pushing plate is set at the output end of the pushing cylinder, and the shape of the pushing plate matches the outer circumferential shape of the magnetic ring assembly. After applying adhesive to the upper surface of each Helbeck unit and the sides of two adjacent Helbeck units, the positioning plate and movable pin are removed. Multiple pusher cylinders drive multiple push plates to simultaneously abut against multiple Helbeck units to form a magnetic ring assembly. After the push is completed, a magnetic positioning plate is placed on the demolding template. The shape of the magnetic positioning plate matches the shape of the magnetic ring assembly.

5. The assembly process for a Heilbeck wireless magnetizing ring as described in claim 1, characterized in that: Step S2 further includes a limiting block, the shape of which matches the inner circumferential shape of the magnetic ring assembly; When bonding the magnetic shielding ring steel sheet to the upper surface of the magnetic ring assembly, place the limiting block on the second fixture. At this time, the limiting block is located on the inner circumference of the magnetic ring assembly. The magnetic shielding ring steel sheet is placed on the limiting block and bonded to the upper surface of the magnetic ring assembly under the attraction of the magnetic ring assembly.

6. The assembly process for a Heilbeck wireless magnetizing ring as described in claim 5, characterized in that: The limiting block is made of bakelite.

7. The assembly process for a Heilbeck wireless magnetizing ring as described in claim 1, characterized in that: In step S2, after the magnetic shielding ring steel sheet is bonded to the upper surface of the magnetic ring assembly, it is placed in a tunnel oven to cure the adhesive. The temperature of the tunnel oven is 80°C and the curing time is 60 minutes.

8. The assembly process for a Heilbeck wireless magnetizing ring as described in claim 1, characterized in that: The adhesive is an epoxy resin adhesive.

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