An assembling device and process for an annular Halbach magnetic assembly

Abstract

The application discloses an assembling device and an assembling process of a ring-shaped Halbach magnetic assembly, and relates to the technical field of magnets.The device comprises a conveying device, a first feeding device, a dispensing device, a second feeding device, a magnetizing device and a third feeding device.The conveying device is used for conveying a jig.The first feeding device is used for placing an iron plate in a groove of the jig.The dispensing device is used for dispensing a ring-shaped, three-layer nested glue path on the upper surface of the iron plate.The second feeding device is used for placing a first single magnet on the innermost layer of the glue path and placing a second single magnet on the outermost layer of the glue path, and a gap is left between the two for placing a third single magnet.The magnetizing device is used for magnetizing the first single magnet and the second single magnet along the axial direction of the ring-shaped iron plate.The third feeding device is used for placing the third single magnets on the middle glue path with a certain interval.The application can automatically assemble the ring-shaped Halbach magnetic assembly, improves the production efficiency and simplifies the assembling process.

Description

Technical Field

[0001] This invention relates to the field of magnet technology, and more specifically to an assembly device and assembly process for a toroidal Helbeck magnetic assembly. Background Technology

[0002] With the popularization of wireless charging technology, higher requirements have been placed on the magnetic attraction of wireless charging magnetic components. Helbeck arrays are used in high-performance wireless charging magnetic components because of their ability to significantly enhance the strength of a single magnetic field. This type of ring-shaped Helbeck magnetic component is usually composed of a ring-shaped iron plate and multiple arc-shaped magnets. Each arc-shaped magnet is further composed of three single magnets with different magnetic directions on the inner, middle and outer sides, resulting in a complex structure.

[0003] Currently, the assembly of this type of component mainly relies on manual assembly. First, the middle single magnet is manually combined and glued with the inner and outer magnets to form an arc-shaped Helbeck component. Then, multiple arc-shaped Helbeck magnetic components are manually assembled and glued onto a ring-shaped iron plate. This traditional method has the problems of cumbersome procedures, low production efficiency, and heavy reliance on manual operation. Problems such as dimensional deviation, glue separation, and glue overflow are prone to occur in the glue dispensing, positioning, and pressure holding stages. Summary of the Invention

[0004] The purpose of this invention is to provide an assembly device and assembly process for a toroidal Hellbeck magnetic assembly, which can automatically assemble the toroidal Hellbeck magnetic assembly and improve production efficiency.

[0005] To achieve the above objectives, the solution of the present invention is as follows:

[0006] An assembly device for a toroidal Hellbeck magnetic assembly, the toroidal Hellbeck magnetic assembly comprising a toroidal iron plate and multiple arc-shaped Hellbeck magnetic assemblies, the multiple arc-shaped Hellbeck magnetic assemblies being adhered to the toroidal iron plate along the toroidal iron plate, with gaps between adjacent arc-shaped Hellbeck magnetic assemblies, each arc-shaped Hellbeck magnetic assembly comprising an inner arc-shaped first single magnet, an outer arc-shaped second single magnet, and a middle arc-shaped third single magnet; the assembly device includes:

[0007] A conveying device is used to convey a fixture, which has an annular groove for embedding an annular iron plate and an arc-shaped Heilbeck magnetic component to form an annular Heilbeck magnetic component.

[0008] The first feeding device is located on the path of the conveying device and is used to place the iron plate in the groove of the fixture.

[0009] The dispensing device is located on the conveying path downstream of the first feeding device. It is used to apply a ring-shaped adhesive path with three nested layers on the upper surface of the iron plate.

[0010] The second feeding device is located on the conveying path downstream of the dispensing device. It is used to place multiple arc-shaped first single magnets at intervals on the innermost adhesive path, so that the multiple first single magnets are pasted on the iron plate in a ring. It is also used to place multiple arc-shaped second single magnets at intervals on the outermost adhesive path, so that the multiple second single magnets are pasted on the iron plate in a ring. The outer side of one first single magnet corresponds to one second single magnet, and there is a gap between them for placing a third single magnet.

[0011] The magnetizing device is located on the conveying path downstream of the second feeding device. It is used to magnetize the first single magnet and the second single magnet along the axial direction of the annular iron plate, so that the first single magnet has a vertically downward magnetic direction and the second single magnet has a vertically upward magnetic direction.

[0012] The third feeding device, located on the conveying path downstream of the magnetizing device, is used to place multiple arc-shaped third single magnets at intervals on the middle adhesive path, so that the multiple third single magnets are pasted on the iron plate in a ring. The third single magnet is located in the gap between the first single magnet and the second single magnet. The inner side of one third single magnet corresponds to one first single magnet, and its outer side corresponds to one second single magnet. The third single magnet has a magnetic direction along the radial direction of the ring iron plate and points towards the second single magnet.

[0013] Furthermore, it also includes a first detection device and a first discharge device. The first detection device is located on the conveying path between the dispensing device and the second feeding device. The first detection device is used to detect whether the glue path is continuous. The first discharge device is located on the conveying path between the first detection device and the second feeding device. The first discharge device can remove the iron plate with unqualified glue path detected by the first detection device and the fixture it is located from the conveying device together. If the glue path on the iron plate is broken or discontinuous, it means that the glue quantity is unqualified.

[0014] Furthermore, it also includes a second detection device and a second discharge device. The second detection device is located downstream of the third feeding device and is used to detect whether the quantity of the first single magnet, the second single magnet, and the third single magnet is missing. If they are missing, they are NG materials. The second discharge device is located downstream of the second detection device and can remove the NG materials detected by the second detection device from the conveying device.

[0015] Furthermore, it also includes a first pressure holding device, which is located between the third feeding device and the second detection device. It includes a first pressure holding head that can be raised and lowered. The first pressure holding head is located above the jig's moving path. When the jig moves below the first pressure holding head, the first pressure holding head descends to press the third single magnet firmly onto the iron plate.

[0016] Furthermore, the first feeding device includes a first robotic arm and a first hopper. The first hopper includes a first hopper and a first flexible vibrating plate. The first hopper is used to store iron plates and is inclined. The discharge end of the first hopper is located at a low horizontal position and abuts against the edge of the first flexible vibrating plate. Under the vibration of the first flexible vibrating plate, the first hopper can be driven to vibrate, so that the iron plates in the first hopper can fall from its discharge end into the first flexible vibrating plate. The vibration of the first flexible vibrating plate can also disperse the individual iron plates inside. The first robotic arm can grab the iron plates in the first flexible vibrating plate and place them into the groove of the fixture.

[0017] Furthermore, the second feeding device includes a second robotic arm and two second hoppers. Each second hopper includes a second hopper and a second flexible vibrating disc. One second hopper is used to store the first single magnet, and the other second hopper is used to store the second single magnet. Both second hoppers are inclined, and their discharge ends are located at a low horizontal position, each abutting against the edge of a first flexible vibrating disc. The vibration of the two second flexible vibrating discs can drive the corresponding second hoppers to vibrate, causing the material in the second hoppers to fall into the corresponding second flexible vibrating discs. The vibration of the second flexible vibrating discs can disperse the first or second single magnets within them. The second robotic arm can grab the first or second single magnet from the second flexible vibrating discs and place it onto the adhesive path of the corresponding iron plate.

[0018] Furthermore, the third feeding device includes a third hopper and a pushing device. The third hopper includes a feeding platform mounted above the conveying device path and a magnetic cylinder. The feeding platform has a circular hole located directly above the conveying path of the conveying device. The magnetic cylinder is fixed inside the circular hole, and there is a gap between the magnetic cylinder and the circular hole to form an annular feeding space. When the fixture moves to the bottom of the third hopper, the feeding space can be directly aligned with the gap between the first single magnet and the second single magnet in the fixture groove.

[0019] The circular hole is surrounded by a circumferential array of multiple feeding slots at intervals. A third single magnet is arranged in the feeding slot. The discharge end of the feeding slot is connected to the feeding space. The magnetic cylinder can attract the third single magnet in each feeding slot to enter the feeding space one by one. The third single magnets are spaced apart from each other and arranged in a ring in the feeding space.

[0020] The feeding device includes a lifting annular pressure head located above the feeding space. The inner side of the annular pressure head has a channel to accommodate the magnetically conductive cylinder. As the annular pressure head descends, it presses the third single magnets, which are arranged in a ring at intervals in the feeding space, downward along the side wall of the magnetically conductive cylinder. Finally, the third single magnets are pressed into the gap between the first and second single magnets, so that the third single magnets are pressed onto the adhesive path in the middle to adhere to the annular iron plate.

[0021] Furthermore, the magnetizing device includes a moving module and a magnetizing component. The moving module includes a material transfer section, which can take out the first single magnet, the second single magnet, and the semi-finished product formed by the iron plate from the groove of the fixture and move them to the magnetizing component. The magnetizing component is used to perform planar diode magnetization on the first single magnet and the second single magnet. The material transfer section can also send the magnetized semi-finished product back to the groove of the fixture.

[0022] Furthermore, it also includes a second pressure holding device, which is set in the conveying path between the magnetizing device and the third feeding device. The second pressure holding device includes a second pressure holding head that can be lifted and moved. After the material transfer section sends the magnetized semi-finished product back into the groove of the fixture, the fixture is conveyed to the area below the second pressure holding device, and the second pressure holding head descends to press the semi-finished product into the groove of the fixture.

[0023] The present invention also provides an assembly process for a toroidal Heilbeck magnetic assembly, which relates to the above-mentioned assembly equipment and includes the following steps:

[0024] S10: Insert the annular iron plate into the annular groove of the fixture;

[0025] S20: Apply a ring-shaped adhesive path with three nested layers on the upper surface of the ring-shaped iron plate.

[0026] S30: Place multiple arc-shaped first single magnets at intervals on the innermost adhesive layer, so that the multiple first single magnets are pasted on the iron plate in a ring.

[0027] S40: Place multiple arc-shaped second single magnets at intervals on the outermost adhesive layer, so that the multiple second single magnets are bonded to the iron plate in a ring. The outer side of one first single magnet corresponds to one second single magnet, and there is a gap between them for placing a third single magnet.

[0028] S50: Place the first single magnet, the second single magnet, and the annular iron plate into the magnetization device, and magnetize the first single magnet and the second single magnet.

[0029] S60: Place multiple arc-shaped third single magnets that have already been magnetized at intervals on the middle adhesive path, so that the multiple third single magnets are pasted on the iron plate in a ring. The third single magnets are located in the gap between the first single magnet and the second single magnet, so as to assemble the ring-shaped Heilbeck magnetic assembly together with the first single magnet, the second single magnet, and the iron plate.

[0030] After adopting the above solution, the beneficial effects of the present invention are as follows:

[0031] This invention, through the sequential arrangement of a conveying device, a first feeding device, a dispensing device, a second feeding device, a magnetizing device, and a third feeding device, forms a continuous assembly line operation mode, replacing the traditional manual assembly method that relies on manual labor. The devices work together to automatically complete processes such as loading iron plates, dispensing glue, placing magnets, and magnetizing, significantly reducing manual intervention, shortening the assembly cycle, and improving production efficiency. Furthermore, the equipment of this invention integrates the originally cumbersome multi-step manual assembly (such as first assembling the arc-shaped magnetic components and then pasting them onto the iron plate) into an automated assembly line, reducing process conversions and intermediate processing links, and reducing quality problems such as dimensional deviations, glue separation, and glue overflow caused by manual operation. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the first feeding device, dispensing device, first detection device, first discharge device, second feeding device, magnetizing device, and second pressure holding device of the present invention.

[0033] Figure 2 This is a schematic diagram of the overall structure of the third feeding device, the first pressure holding device, the second detection device, and the second discharge device of the present invention.

[0034] Figure 3 This is a schematic diagram of the structure of the third feeding device of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of the third hopper of the third feeding device of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the pushing device of the third feeding device of the present invention;

[0037] Figure 6 This is a schematic diagram of the structure of the limiting device and limiting fixture of the present invention;

[0038] Figure 7 This is a schematic diagram of the limiting device of the present invention;

[0039] Figure 8 This is a schematic diagram of the structure of the fixture of the present invention;

[0040] Figure 9 This is a schematic diagram of the structure of the annular Heilbeck magnetic assembly of the present invention;

[0041] Figure 10 This is a cross-sectional schematic diagram of the annular Heilbeck magnetic assembly of the present invention.

[0042] Label Explanation:

[0043] 10. Ring-shaped Hellbeck magnetic assembly; 11. Arc-shaped Hellbeck magnetic assembly; 111. First single magnet; 112. Second single magnet; 113. Third single magnet; 12. Iron plate; 20. Conveying device; 30. First feeding device; 31. First robotic arm; 32. First hopper; 321. First flexible vibratory feeder; 322. First hopper; 40. Dispensing device; 41. Needle; 42. XYZ axis moving module; 50. Second feeding device; 51. Second machine 52. Robotic arm; 521. Second hopper; 522. Second flexible vibratory feeder; 60. Magnetizing device; 61. Moving module; 611. Transfer section; 62. Magnetizing component; 70. Third feeding device; 71. Third hopper; 711. Discharge platform; 7111. Circular hole; 7112. Feed chute; 7113. Pressure plate; 712. Magnetic cylinder; 713. Feeding space; 714. Connecting plate; 7141. First support arm; 7142. Second Support arm; 7143, Third support arm; 72, Pushing device; 721, Fourth drive device; 7211, First lifting cylinder; 7212, Horizontal plate; 7213, Guide rod; 7214, Fixing block; 722, Annular pressure head; 80, First detection device; 90, First discharge device; 91, First drive device; 92, First suction nozzle assembly; 93, Discharge station for unqualified adhesive quantity; 100, Second detection device; 200, Second discharge device; 201, Second... 202. Drive device; 203. Second suction nozzle assembly; 204. NG material discharge station; 305. First pressure holding device; 306. First pressure holding head; 307. Third drive device; 408. Second pressure holding device; 409. Second pressure holding head; 400. Fifth drive device; 500. Limiting device; 501. Limiting component; 5011. Limiting groove; 502. Limiting cylinder; 503. First push plate; 504. Second push plate; 600. Fixture; 601. Groove. Detailed Implementation

[0044] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0045] like Figures 1 to 10 As shown, this embodiment provides an assembly device for a ring-shaped Hellbeck magnetic assembly 10. The ring-shaped Hellbeck magnetic assembly 10 includes a ring-shaped iron plate 12 and multiple arc-shaped Hellbeck magnetic assemblies 11. The multiple arc-shaped Hellbeck magnetic assemblies 11 are attached to the ring-shaped iron plate 12 along the ring-shaped iron plate 12, and there is a gap between adjacent arc-shaped Hellbeck magnetic assemblies 11. The arc-shaped Hellbeck magnetic assembly 11 includes an inner arc-shaped first single magnet 111, an outer arc-shaped second single magnet 112, and a middle arc-shaped third single magnet 113. The assembly device includes:

[0046] The conveying device 20 is used to convey the fixture 600. The fixture 600 is provided with an annular groove 601. The groove 601 is used for embedding the annular iron plate 12 and the arc-shaped Heilbeck magnetic component 11 to form the annular Heilbeck magnetic component 10.

[0047] The first feeding device 30 is arranged on the path of the conveying device 20. The first feeding device 30 is used to place the iron plate 12 in the groove 601 of the fixture 600.

[0048] The dispensing device 40 is located on the conveying path downstream of the first feeding device 30. It is used to apply a ring-shaped adhesive path with three nested layers on the upper surface of the iron plate 12.

[0049] The second feeding device 50 is located on the conveying path downstream of the dispensing device 40. It is used to place multiple arc-shaped first single magnets 111 at intervals on the innermost adhesive path, so that the multiple first single magnets 111 are pasted on the iron plate 12 in a ring. It is also used to place multiple arc-shaped second single magnets 112 at intervals on the outermost adhesive path, so that the multiple second single magnets 112 are pasted on the iron plate 12 in a ring. The outer side of one first single magnet 111 corresponds to one second single magnet 112, and a gap is left between them for the placement of a third single magnet 113.

[0050] The magnetizing device 60 is located on the conveying path downstream of the second feeding device 50. It is used to magnetize the first single magnet 111 and the second single magnet 112 along the axial direction of the annular iron plate 12, so that the first single magnet 111 has a vertically downward magnetic direction and the second single magnet 112 has a vertically upward magnetic direction.

[0051] The third feeding device 70 is located on the conveying path downstream of the magnetizing device 60. It is used to place multiple arc-shaped third single magnets 113 at intervals on the middle adhesive path, so that the multiple third single magnets 113 are pasted on the iron plate 12 in a ring. The third single magnets 113 are located in the gap between the first single magnets 111 and the second single magnets 112. The inner side of one third single magnet 113 corresponds to one first single magnet 111, and its outer side corresponds to one second single magnet 112. The third single magnet 113 has a magnetic direction along the radial direction of the ring iron plate 12 and points towards the second single magnet 112, that is, the magnetic direction of the third single magnet 113 points outward.

[0052] Specifically, in another type of annular Heilbeck magnetic assembly 10, the magnetizing device 60 can also magnetize the first single magnet 111 and the second single magnet 112, so that the first single magnet 111 has a vertically upward magnetic direction and the second single magnet 112 has a vertically downward magnetic direction. However, the third single magnet 113 is required to have a magnetic direction along the radial direction of the annular iron ring and pointing towards the first single magnet 111, that is, the magnetic direction of the third single magnet 113 points inward.

[0053] It is understandable that the third single magnet 113 is a pre-magnetized single magnet, and the first single magnet 111, the second single magnet 112, and the third single magnet 113 are all anisotropic magnets.

[0054] Furthermore, it also includes a first detection device 80 and a first discharge device 90. The first detection device 80 is located on the conveying path between the dispensing device 40 and the second feeding device 50. The first detection device 80 is used to detect whether the glue path is continuous. The first discharge device 90 is located on the conveying path between the first detection device 80 and the second feeding device 50. The first discharge device 90 can remove the iron plate 12 with unqualified glue path detected by the first detection device 80 and the fixture 600 thereon from the conveying device 20. If the glue path on the iron plate 12 is broken or discontinuous, it means that the glue amount is unqualified.

[0055] Preferably, the first detection device 80 is an AOI device, which acquires images of the glue path, compares the acquired images with standard glue path images, identifies the defect locations, and marks them. The AOI device consists of core components such as an illumination source, an industrial lens, an industrial camera, and machine vision software. It is existing technology and can be understood by those skilled in the art.

[0056] Specifically, the first discharge device 90 includes a first drive device 91 and a first suction nozzle assembly 92. The first drive device 91 is connected to and drives the first suction nozzle assembly 92 to move up and down and to move in a direction perpendicular to the conveying path of the conveying device 20. The first suction nozzle assembly 92 includes a first fixed plate and a plurality of first suction nozzles disposed on the first fixed plate. The first fixed plate is connected to the power end of the first drive device 91. The first air nozzles use negative pressure to suck up the fixture 600 and the iron plate 12. A glue quantity non-compliance discharge station 93 is provided on the side of the conveying device 20. The glue quantity non-compliance discharge station 93 and the first drive device are connected to the first drive device. Located on both sides of the conveying path of the conveying device 20, after the first suction nozzle assembly 92 adsorbs the fixture 600 of the iron plate 12 with the defective glue path, the first driving device 91 drives the first suction nozzle assembly 92 and the fixture 600 to move in a direction perpendicular to the conveying path of the conveying device 20, and finally move to the glue quantity defective discharge station 93, and place the fixture 600 into the glue quantity defective discharge station 93, thereby rejecting the defective glue quantity product; it can be understood that the specific structure of the first driving device 91 is not limited, as long as it can drive the first suction nozzle assembly 92 to perform the above movement.

[0057] Furthermore, it also includes a second detection device 100 and a second discharge device 200. The second detection device 100 is located downstream of the third feeding device 70 and is used to detect whether the quantity of the first single magnet 111, the second single magnet 112, and the third single magnet 113 is missing. If they are missing, they are NG materials. The second discharge device 200 is located downstream of the second detection device 100 and can remove the NG materials detected by the second detection device 100 from the conveying device 20.

[0058] Preferably, the second detection device 100 is also an AOI device; specifically, the second discharge device 200 and the first discharge device 90 have the same structure. The second discharge device 200 includes a second drive device 201 and a second suction nozzle assembly 202. The second suction nozzle assembly 202 includes a second fixed plate and a plurality of second suction nozzles disposed on the second fixed plate. The second drive device 201 connects to and drives the second suction nozzle assembly 202 to move up and down and to move in a direction perpendicular to the conveying path of the conveying device 20. An NG material discharge station 203 is provided on the side of the conveying device 20. The NG material discharge station 203 and the second The drive device 201 is located on both sides of the conveying path of the conveying device 20. After the second suction nozzle assembly 202 adsorbs the fixture 600 containing NG material, the second drive device 201 drives the second suction nozzle assembly 202 and the fixture 600 to move in a direction perpendicular to the conveying path of the conveying device 20, and finally move to the NG material discharge station 203. The fixture 600 is placed in the NG material discharge station 203, thereby rejecting the unqualified glue products. It is understood that the specific structure of the second drive device 201 is not limited, as long as it can drive the second suction nozzle assembly 202 to perform the above movement.

[0059] Furthermore, it also includes a first pressure holding device 300, which is located between the third feeding device 70 and the second detection device 100. It includes a first pressure holding head 301 that can be raised and lowered. The first pressure holding head 301 is located above the moving path of the fixture 600. When the fixture 600 moves below the first pressure holding head 301, the first pressure holding head 301 descends to press the third single magnet 113 onto the iron plate 12. The first pressure holding device 300 also includes a third driving device 302 disposed above the conveying path of the conveying device 20. The third driving device 302 has a power output end that can be raised and lowered. The first pressure holding head 301 is disposed on the power output end of the third driving device 302. The third driving device 302 is preferably a cylinder.

[0060] Furthermore, the first feeding device 30 includes a first robotic arm 31 and a first hopper 32. The first hopper 32 includes a first hopper 322 and a first flexible vibrating plate 321. The first hopper 322 is used to store iron plates 12 and is inclined. The discharge end of the first hopper 322 is located at a low horizontal position and abuts against the edge of the first flexible vibrating plate 321. Under the vibration of the first flexible vibrating plate 321, the first hopper 322 can be driven to vibrate, so that the iron plates 12 in the first hopper 322 can fall from its discharge end into the first flexible vibrating plate 321. The vibration of the first flexible vibrating plate 321 can also disperse the individual iron plates 12 in it. The first robotic arm 31 can grab the iron plates 12 in the first flexible vibrating plate and place them into the groove 601 of the fixture 600.

[0061] Specifically, the second feeding device 50 includes a second robotic arm 51 and two second hoppers 52, both of which are within the range of motion of the second robotic arm 51. Each second hopper 52 includes a second hopper 521 and a second flexible vibrating disc 522. One second hopper 521 stores a first single magnet 111, and the other second hopper 521 stores a second single magnet 112. Both second hoppers 521 are inclined, with their discharge ends positioned at a low horizontal position and each abutting against the edge of a first flexible vibrating disc 321. The vibration of the two second flexible vibrating discs 522 drives the corresponding second hopper 521 to vibrate, causing the material inside the second hopper 521 to vibrate. The magnet falls into the corresponding second flexible vibrating plate 522, and the vibration of the second flexible vibrating plate 522 can disperse the first single magnet 111 or the second single magnet 112 inside. The second robotic arm 51 can grasp the first single magnet 111 or the second single magnet 112 inside the second flexible vibrating plate 522 and place it on the adhesive path of the corresponding iron plate 12. It can be understood that the second robotic arm 51 can first stick the first single magnet 111 to the iron plate 12, and then stick the second single magnet 112 to the iron plate 12, or the first single magnet 111 and the second single magnet 112 can be stuck to the iron plate 12 alternately. There is no limitation here. The sticking of the first single magnet 111 and the second single magnet 112 is completed.

[0062] Specifically, the third feeding device 70 includes a third hopper 71 and a pushing device 72. The third hopper 71 includes a feeding platform 711 mounted above the path of the conveying device 20 and a magnetic cylinder 712. The feeding platform 711 has a circular hole 7111 located directly above the conveying path of the conveying device 20. The magnetic cylinder 712 is fixed inside the circular hole 7111, and there is a gap between the magnetic cylinder 712 and the circular hole 7111 to form an annular feeding space 713. When the fixture 600 moves below the third hopper 71, the feeding space 713 can be directly aligned with the gap between the first single magnet 111 and the second single magnet 112 in the groove 601 of the fixture 600.

[0063] The circular hole 7111 is surrounded by a circumferential array of multiple feed slots 7112, and a third single magnet 113 is arranged in the feed slot 7112. The discharge end of the feed slot 7112 is connected to the feed space 713. The magnetic cylinder 712 can attract the third single magnet 113 in each feed slot 7112 and enter the feed space 713 one by one. The third single magnets 113 are spaced apart from each other and arranged in a ring in the feed space 713.

[0064] The feeding device 72 includes a lifting annular pressure head 722, which is located above the feeding space 713. The inner side of the annular pressure head 722 has a channel to accommodate the magnetically conductive cylinder 712. As the annular pressure head 722 descends, it presses the third single magnet 113, which is arranged in a ring at intervals in the feeding space 713, downward along the side wall of the magnetically conductive cylinder 712, and finally presses it into the gap between the first single magnet 111 and the second single magnet 112, so that the third single magnet 113 is pressed on the middle adhesive path to be pasted onto the annular iron plate 12.

[0065] Specifically, a pressure plate 7113 is also provided on the feeding platform 711. The pressure plate 7113 presses down on each feeding slot 7112 to block the top of the feeding slot 7112, thereby preventing the third single magnet 113 from flipping up out of the feeding slot 7112.

[0066] Specifically, the magnetically conductive cylinder 712 is connected to the feeding platform 711 via an "E"-shaped connecting plate 714. The "E"-shaped connecting plate 714 includes a first arm 7141 located in the middle, two second arms 7142 located on both sides of the first arm 7141, and a third arm 7143 connecting the first arm 7141 and the two second arms 7142. The first arm 7141 of the connecting plate 714 is connected to the top surface of the magnetically conductive cylinder 712, and the two second arms 7142 are connected to the top surface of the feeding platform 711, thereby stationary setting of the magnetically conductive cylinder 712 within the circular hole 7111.

[0067] Specifically, the feeding device 72 also includes a fourth driving device 721. The fourth driving device 721 drives the annular pressure head 722 to descend, so as to press the third single magnet 113 in the feeding space 713 downward. The fourth driving device 721 includes a first lifting cylinder 7211, a horizontal plate 7212, a guide rod 7213, and a fixing block 7214. One end of the horizontal plate 7212 is fixed to the power end of the first lifting cylinder 7211. The lifting of the first lifting cylinder 7211 can drive the lifting of the horizontal plate 7212. The other end of the horizontal plate 7212 is penetrated by the guide rod 7213 to guide the lifting of the horizontal plate 7212. The top of the fixing block 7214 is fixed to the lower surface of the horizontal plate 7212. The surface is penetrated horizontally by the third arm 7143 of the connecting plate 714, and vertically by the first arm 7141 penetrating downwards to the bottom. The first arm 7141 penetrates the bottom of the fixing block 7214 and connects to the magnetic cylinder 712. The annular pressure head 722 is fixedly installed at the lower end of the fixing block 7214. The channel inside the annular pressure head 722 not only makes way for the magnetic cylinder 712, but also makes way for the first arm 7141. Driven by the fourth driving device 721, the annular pressure head 722 descends downwards along the magnetic cylinder 712, thereby pressing the third single magnet 113 in the feeding space 713 into the gap between the first single magnet 111 and the second single magnet 112.

[0068] Furthermore, the magnetizing device 60 includes a moving module 61 and a magnetizing component 62. The moving module 61 includes a material transfer section 611, which can take out the semi-finished product formed by the first single magnet 111, the second single magnet 112 and the iron plate 12 from the groove 601 of the fixture 600 and move it to the magnetizing component 62. The magnetizing component 62 is used to perform planar diode magnetization on the first single magnet 111 and the second single magnet 112. The material transfer section 611 can also send the magnetized semi-finished product back to the groove 601 of the fixture 600.

[0069] Preferably, the moving module 61 further includes a linear motor and a second lifting cylinder. The linear motor is mounted above the conveying path of the conveying device 20, with one end extending to the magnetizing component 62. The material transfer part 611 is a third suction nozzle assembly, which is mounted on the power output end of the second lifting cylinder, which is mounted on the power output end of the linear motor. The third suction nozzle assembly includes a third fixing plate and a plurality of third suction nozzles arranged in a ring on the third fixing plate. The third fixing plate is fixedly connected to the power output end of the second lifting cylinder. When the conveying device 20 conveys the fixture 600 and the semi-finished product to below the linear motor, the linear motor can drive the third suction nozzle assembly to move above the semi-finished product. Then, driven by the second lifting cylinder, the third suction nozzle assembly descends, attracting the third suction nozzles to the first single magnet 11 of the semi-finished product. 1. The second single magnet 112 is placed on the first magnet, and then the second lifting cylinder rises and moves to the magnetizing component 62 under the drive of the linear motor. Specifically, the magnetizing component 62 includes a platform, a pushing cylinder, and a magnetizing pole head. The platform is recessed with a placement groove for placing the semi-finished product. The side of the platform is fixedly connected to the power output end of the pushing cylinder. Under the drive of the linear motor, the third suction nozzle assembly moves the semi-finished product to the top of the placement groove. Then the second lifting cylinder descends and places the semi-finished product into the placement groove. Under the push of the pushing cylinder, the platform and the semi-finished product on it are sent to the magnetizing pole head. The magnetizing pole head includes an upper pole head and a lower pole head. The upper pole head is set to rise first. Under the push of the pushing cylinder, the platform and the semi-finished product are pushed between the upper and lower pole heads. Then the upper pole head descends and works with the lower pole head to perform planar two-pole magnetization.

[0070] Furthermore, it also includes a second pressure holding device 400, which is disposed in the conveying path between the magnetizing device 60 and the third feeding device 70. The second pressure holding device 400 includes a second pressure holding head 401 that can be raised and lowered. After the transfer part 611 sends the magnetized semi-finished product back into the groove 601 of the fixture 600, the fixture 600 is conveyed to the area below the second pressure holding device 400. The second pressure holding head 401 descends to press the semi-finished product into the groove 601 of the fixture 600. The second pressure holding device 400 also includes a fifth drive device 402 disposed above the conveying path of the conveying device 20. The fifth drive device 402 has a power output end that can be raised and lowered. The second pressure holding head 401 is disposed on the power output end of the fifth drive device 402. The fifth drive device 402 is preferably a cylinder. The second pressure holding head 401 is driven to move up and down by the fifth drive device 402, so that the second pressure holding head 401 presses on the semi-finished product.

[0071] Specifically, the dispensing device 40 includes a needle tube 41 and a spray valve disposed on the needle tube 41. The needle tube 41 contains glue, which is dispensed onto the iron plate 12 through the spray valve to form a glue path. The needle tube 41 is fixedly disposed on an XYZ axis moving module 42. The XYZ axis moving module 42 drives the needle tube 41 to move along the X and Y axes, thereby dispensing a ring-shaped glue path onto the iron plate 12.

[0072] The conveying device 20 can move the fixture 600 by extending and retracting a cylinder, or it can move the fixture 600 by extending and retracting a cylinder and alternating with a conveyor belt, or it can move the fixture 600 entirely by a conveyor belt, or it can be any other structure in the prior art that can move the fixture 600, which is not limited here.

[0073] Limiting devices 500 are provided below the first feeding device 30, the dispensing device 40, the second feeding device 50, the third feeding device 70, and the second detection device 100. Each limiting device 500 includes a limiting member 501, a limiting cylinder 502, a first pushing plate 503, and a second pushing plate 504. The limiting member 501 is located on one edge of the conveying device 20. A limiting groove 5011 is recessed on the side of the limiting member 501 near the fixture 600 in a direction perpendicular to the conveying path of the conveying device 20. The positioning cylinder 502 is located below the conveying device 20, and the first push plate 503 is located on the power end of the positioning cylinder 502. The first push plate 503 and the limiting groove 5011 are located on opposite sides of the conveying device 20. The first push plate 503 can move towards the limiting groove 5011 under the drive of the power end of the positioning cylinder 502. When the fixture 600 is below the device, the positioning cylinder 502 drives the first push plate 503 to move the fixture 600 towards the limiting groove 5011. This pushes the fixture 600 into the limiting groove 5011 for positioning, facilitating the operation of the aforementioned devices. The second push plate 504 is telescopically mounted at the bottom of the limiting groove 5011 and is also connected to the power end of the limiting cylinder 502. It and the first push plate 503 can move simultaneously in the same direction. When the first push plate 503 pushes the fixture 600 into the limiting groove 5011, the second push plate 504 retracts into the bottom of the limiting groove 5011, avoiding... The interference-free fixture 600 enters the limiting groove 5011. When the second push plate moves away from the limiting groove 5011, the second push plate 504 extends out of the bottom of the limiting groove 5011 to push the fixture 600 back to the position where it was not originally in the limiting groove 5011. It can be understood that each fixture 600 is close to the conveying device 20. Therefore, under the control of the program, the first push plate 503 and the second push plate 504 must perform the above-mentioned pushing action on each fixture 600.

[0074] This embodiment also includes a tunnel furnace, which is used to heat and cure the annular Heilbeck magnetic assembly 10 after it has been pressurized by the first pressure holding device 300.

[0075] This embodiment also includes a demolding fixture. After the jig 600 flows out of the tunnel furnace, it is placed in the demolding fixture to remove the annular Heilbeck magnetic component 10 from the jig 600. The tunnel furnace and the demolding fixture are conventional technical means and are not specifically limited here.

[0076] The present invention also provides an assembly process for a toroidal Heilbeck magnetic assembly 10, which relates to the assembly equipment described above, and includes the following steps:

[0077] S10: Insert the annular iron plate 12 into the annular groove 601 of the fixture 600;

[0078] S20: Apply a ring-shaped adhesive path with three nested layers on the upper surface of the ring-shaped iron plate 12.

[0079] S30: Place multiple arc-shaped first single magnets 111 at intervals on the innermost adhesive layer, so that the multiple first single magnets 111 are attached to the iron plate 12 in a ring.

[0080] S40: Place multiple arc-shaped second single magnets 112 at intervals on the outermost adhesive layer, so that the multiple second single magnets 112 are bonded to the iron plate 12 in a ring. The outer side of a first single magnet 111 corresponds to a second single magnet 112, and a gap is left between them for the placement of a third single magnet 113.

[0081] S50: The first single magnet 111, the second single magnet 112 and the annular iron plate 12 are placed into the magnetization device 60, and the first single magnet and the second single magnet 112 are magnetized.

[0082] S60: Place multiple arc-shaped third single magnets 113 that have been magnetized at intervals on the middle adhesive path, so that the multiple third single magnets 113 are attached to the iron plate 12 in a ring. The third single magnets 113 are located in the gap between the first single magnets 111 and the second single magnets 112, so as to assemble the ring-shaped Heilbeck magnetic assembly 10 together with the first single magnets 111, the second single magnets 112 and the iron plate 12.

[0083] Compared with the prior art, the assembly process of the annular Heilbeck magnetic component 10 of the present invention has the following advantages: In the prior art, the first single magnet 111, the second single magnet 112 and the third single magnet 113 are placed first, and then the iron plate 12 is placed after the glue is applied. Since it is a Heilbeck array, the third single magnet 113 in the middle will float up after being subjected to repulsive force. Therefore, it is necessary to keep it under continuous pressure, which is more troublesome and inconvenient to operate.

[0084] In the assembly process of this invention, the annular iron plate is at the bottom. The adhesive is applied to the iron plate 12. First, the first single magnet 111 and the second single magnet 112 are glued to the iron plate 12. Then, the third single magnet 113 is placed in the middle. Due to the magnetic orientation relationship between the first single magnet 111, the second single magnet 112, and the third single magnet 113, no repulsive force is generated between the third single magnet 113 and the first single magnet 111 and the second single magnet 112 on the side near the iron plate 12. Only an attractive force is generated. Therefore, no repulsive force is generated on the third single magnet 113, and no continuous pressure holding operation is required, which is more convenient.

[0085] 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.

[0086] 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. An assembly device for a ring-shaped Hellbeck magnetic assembly, the ring-shaped Hellbeck magnetic assembly comprising a ring-shaped iron plate and multiple arc-shaped Hellbeck magnetic assemblies, the multiple arc-shaped Hellbeck magnetic assemblies being adhered to the ring-shaped iron plate along the ring-shaped iron plate, and having gaps between adjacent arc-shaped Hellbeck magnetic assemblies, the arc-shaped Hellbeck magnetic assembly comprising an inner arc-shaped first single magnet, an outer arc-shaped second single magnet, and a middle arc-shaped third single magnet, characterized in that: Assembly equipment includes: A conveying device is used to convey a fixture, which has an annular groove for embedding an annular iron plate and an arc-shaped Heilbeck magnetic component to form an annular Heilbeck magnetic component. The first feeding device is located on the path of the conveying device and is used to place the iron plate in the groove of the fixture. The dispensing device is located on the conveying path downstream of the first feeding device. It is used to apply a ring-shaped adhesive path with three nested layers on the upper surface of the iron plate. The second feeding device is located on the conveying path downstream of the dispensing device. It is used to place multiple arc-shaped first single magnets at intervals on the innermost adhesive path, so that the multiple first single magnets are pasted on the iron plate in a ring. It is also used to place multiple arc-shaped second single magnets at intervals on the outermost adhesive path, so that the multiple second single magnets are pasted on the iron plate in a ring. The outer side of one first single magnet corresponds to one second single magnet, and there is a gap between them for placing a third single magnet. The magnetizing device is located on the conveying path downstream of the second feeding device. It is used to magnetize the first single magnet and the second single magnet along the axial direction of the annular iron plate, so that the first single magnet has a vertically downward magnetic direction and the second single magnet has a vertically upward magnetic direction. The third feeding device, located downstream of the magnetizing device on the conveying path, is used to place multiple arc-shaped third single magnets spaced apart on the middle adhesive path, so that the multiple third single magnets are attached to the iron plate in a ring. The third single magnets are located in the gap between the first and second single magnets. The inner side of one third single magnet corresponds to one first single magnet, and its outer side corresponds to one second single magnet. The third single magnet has a magnetic direction along the radial direction of the ring iron plate and points towards the second single magnet. The third feeding device includes a third hopper and a pushing device. The third hopper includes a feeding platform mounted above the conveying device path and a magnetically conductive cylinder. The feeding platform has a circular hole located directly above the conveying device path. The magnetically conductive cylinder is fixed in the circular hole, and there is a gap between the magnetically conductive cylinder and the circular hole to form a ring-shaped feeding space. When the fixture moves to the bottom of the third hopper, the feeding space can be directly aligned with the gap between the first and second single magnets in the fixture groove.

2. The assembly equipment for a toroidal Heilbeck magnetic assembly as described in claim 1, characterized in that: It also includes a first detection device and a first discharge device. The first detection device is located on the conveying path between the dispensing device and the second feeding device. The first detection device is used to detect whether the glue path is continuous. The first discharge device is located on the conveying path between the first detection device and the second feeding device. The first discharge device can remove the iron plate with unqualified glue path detected by the first detection device and the fixture it is located from the conveying device together. If the glue path on the iron plate is broken or discontinuous, it means that the glue amount is unqualified.

3. The assembly equipment for a toroidal Heilbeck magnetic assembly as described in claim 1, characterized in that: It also includes a second detection device and a second discharge device. The second detection device is located downstream of the third feeding device. It is used to detect whether the number of the first single magnet, the second single magnet, and the third single magnet is missing. If they are missing, they are NG materials. The second discharge device is located downstream of the second detection device, and the second discharge device can remove the NG material detected by the second detection device from the conveying device.

4. The assembly equipment for a toroidal Heilbeck magnetic assembly as described in claim 3, characterized in that: It also includes a first pressure holding device, which is located between the third feeding device and the second detection device. It includes a first pressure holding head that can be raised and lowered. The first pressure holding head is located above the jig's moving path. When the jig moves below the first pressure holding head, the first pressure holding head descends to press the third single magnet firmly onto the iron plate.

5. The assembly equipment for a toroidal Heilbeck magnetic assembly as described in claim 1, characterized in that: The first feeding device includes a first robotic arm and a first hopper. The first hopper includes a first hopper and a first flexible vibrating plate. The first hopper is used to store iron plates and is inclined. The discharge end of the first hopper is located at a low horizontal position and abuts against the edge of the first flexible vibrating plate. Under the vibration of the first flexible vibrating plate, the first hopper can be driven to vibrate, so that the iron plates in the first hopper can fall from its discharge end into the first flexible vibrating plate. The vibration of the first flexible vibrating plate can also disperse the individual iron plates inside. The first robotic arm can grab the iron plates in the first flexible vibrating plate and place them into the groove of the fixture.

6. The assembly equipment for a toroidal Heilbeck magnetic assembly as described in claim 1, characterized in that: The second feeding device includes a second robotic arm and two second hoppers. Each second hopper includes a second hopper and a second flexible vibrating disc. One second hopper is used to store a first single magnet, and the other second hopper is used to store a second single magnet. Both second hoppers are inclined, and their discharge ends are located at a low horizontal position, each abutting against the edge of a second flexible vibrating disc. The vibration of the two second flexible vibrating discs can drive the corresponding second hoppers to vibrate, causing the material in the second hoppers to fall into the corresponding second flexible vibrating discs. The vibration of the second flexible vibrating discs can disperse the first or second single magnets within them. The second robotic arm can grab the first or second single magnet from the second flexible vibrating discs and place it on the adhesive path of the corresponding iron plate.

7. The assembly equipment for a toroidal Heilbeck magnetic assembly as described in claim 1, characterized in that: The circular hole is surrounded by a circumferential array of multiple feeding slots at intervals. A third single magnet is arranged in the feeding slot. The discharge end of the feeding slot is connected to the feeding space. The magnetic cylinder can attract the third single magnet in each feeding slot to enter the feeding space one by one. The third single magnets are spaced apart from each other and arranged in a ring in the feeding space. The feeding device includes a lifting annular pressure head located above the feeding space. The inner side of the annular pressure head has a channel to accommodate the magnetically conductive cylinder. As the annular pressure head descends, it presses the third single magnets, which are arranged in a ring at intervals in the feeding space, downward along the side wall of the magnetically conductive cylinder. Finally, the third single magnets are pressed into the gap between the first and second single magnets, so that the third single magnets are pressed onto the adhesive path in the middle to adhere to the annular iron plate.

8. The assembly equipment for a toroidal Heilbeck magnetic assembly as described in claim 1, characterized in that: The magnetizing device includes a moving module and a magnetizing component. The moving module includes a material transfer section, which can take out the first single magnet, the second single magnet, and the semi-finished product formed by the iron plate from the groove of the fixture and move them to the magnetizing component. The magnetizing component is used to perform planar diode magnetization on the first single magnet and the second single magnet. The material transfer section can also send the magnetized semi-finished product back to the groove of the fixture.

9. The assembly equipment for a toroidal Heilbeck magnetic assembly as described in claim 8, characterized in that: It also includes a second pressure holding device, which is set in the conveying path between the magnetizing device and the third feeding device. The second pressure holding device includes a second pressure holding head that can be lifted and moved. After the material transfer section sends the magnetized semi-finished product back into the groove of the fixture, the fixture is conveyed to the area below the second pressure holding device, and the second pressure holding head descends to press the semi-finished product into the groove of the fixture.

10. An assembly process for a toroidal Heilbeck magnetic assembly, comprising using the assembly equipment described in any one of claims 1-9, characterized in that: Includes the following steps: S10: Insert the annular iron plate into the annular groove of the fixture; S20: Apply a ring-shaped adhesive path with three nested layers on the upper surface of the ring-shaped iron plate. S30: Place multiple arc-shaped first single magnets at intervals on the innermost adhesive layer, so that the multiple first single magnets are pasted on the iron plate in a ring. S40: Place multiple arc-shaped second single magnets at intervals on the outermost adhesive layer, so that the multiple second single magnets are pasted on the iron plate in a ring. The outer side of one first single magnet corresponds to one second single magnet, and a gap is left between them for placing a third single magnet. S50: Place the first single magnet, the second single magnet, and the annular iron plate into the magnetization device, and magnetize the first single magnet and the second single magnet. S60: Place multiple arc-shaped third single magnets that have already been magnetized at intervals on the middle adhesive path, so that the multiple third single magnets are pasted on the iron plate in a ring. The third single magnets are located in the gap between the first single magnet and the second single magnet, so that together with the first single magnet, the second single magnet and the iron plate, they are assembled into a ring-shaped Heilbeck magnetic assembly.

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