Neodymium iron boron surface treatment device for permeating dysprosium on neodymium iron boron surface

Abstract

The invention belongs to the field of neodymium-iron-boron surface grinding, and particularly relates to a neodymium-iron-boron surface treatment device for neodymium-iron-boron surface dysprosium infiltration. An annular grinding table is rotationally arranged outside an air storage barrel, an annular cavity is formed in the annular grinding table, and a plurality of conical discharging barrels are annularly and uniformly arranged in the annular cavity; an arc-shaped grinding plate is arranged on the inner arc face, close to the outer circle face of the annular grinding table, of each conical discharging barrel, a transmission wheel is rotationally arranged between each conical discharging barrel and the air storage barrel, an annular groove is formed in the position, below the multiple conical discharging barrels, of the upper end face of the workbench, and the multiple grinding plates are annularly and evenly arranged in the annular groove. A plurality of top grinding assemblies are arranged above the multiple conical discharging barrels in a sliding mode. According to the neodymium iron boron grinding device, through the arrangement of the conical discharging barrel and other assemblies, neodymium iron boron can be ground in all directions, meanwhile, intermittent grinding of the neodymium iron boron can be achieved through intermittent downward pressing of the grinding belt, and the frustum-shaped neodymium iron boron has spare time for cooling and heat dissipation.

Description

Technical Field

[0001] This invention belongs to the field of NdFeB surface grinding technology, and particularly relates to a NdFeB surface treatment device for dysprosium infiltration on NdFeB surfaces. Background Technology

[0002] Neodymium iron boron (NdFeB) is a high-performance permanent magnet material widely used in electronics, communications, aerospace, and other fields. However, in the production of NdFeB, heavy rare earth elements are typically added to ensure the amount of dysprosium or terbium is present, thereby guaranteeing a certain level of coercivity. Before dysprosium infiltration, the surface of the NdFeB needs to be polished.

[0003] Patent application CN202311575113.X discloses a surface treatment device and method for dysprosium infiltration on neodymium iron boron (NdFeB) plates. The device includes a grinding frame, support legs, cylinders, a grinding mechanism, a supporting mechanism, and a limiting mechanism. The grinding frame has support legs connected to its bottom, and cylinders are installed on both sides of its top. A grinding mechanism for grinding the NdFeB is provided between the cylinder's telescopic rod and the grinding frame. The grinding frame has a supporting mechanism for supporting the NdFeB and a limiting mechanism for placing and limiting the NdFeB. During operation, this invention allows the pressing frame to press the pressing rod while the sliding plate is being pushed, thereby causing the limiting block to press against the NdFeB, thus fixing the NdFeB. Furthermore, during the fixing process, the pressing frame can continuously press the pressing rod without applying external force, making operation more convenient.

[0004] Existing technologies facilitate operation by automatically clamping and grinding NdFeB blocks, but still have shortcomings: First, existing NdFeB surface treatment equipment can only grind rectangular or cuboid NdFeB, and its effect is poor when grinding frustoconical NdFeB used in machine tools and other equipment. It cannot simultaneously grind the upper and lower end faces and the arc-shaped conical surface of frustoconical NdFeB. Secondly, existing NdFeB surface treatment equipment cannot clean and collect the grinding debris generated during the grinding of NdFeB in a timely manner, resulting in the accumulation of grinding debris inside the equipment, which affects the subsequent grinding accuracy. At the same time, the equipment needs to be cleaned multiple times during the processing, which affects the overall processing efficiency. Finally, existing NdFeB surface treatment equipment lacks a cooling process for NdFeB during polishing, which can easily cause the high temperature generated during polishing to reduce the magnetism of NdFeB, thus resulting in a decline in the production quality of NdFeB. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention provides a NdFeB surface treatment device for dysprosium infiltration onto NdFeB plates. Through the arrangement of components such as a conical feeding cylinder, this invention enables omnidirectional grinding of the frustum-shaped NdFeB plates. Simultaneously, the intermittent downward pressure from components such as the grinding belt allows for intermittent grinding of the frustum-shaped NdFeB plates, providing them with time to cool down and dissipate heat.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a NdFeB surface treatment device for dysprosium infiltration on NdFeB surfaces, comprising a worktable, an air storage cylinder slidably disposed on the upper end face of the worktable, an annular grinding table rotatably disposed outside the air storage cylinder, an annular cavity disposed inside the annular grinding table, a plurality of conical feeding cylinders uniformly disposed in a ring inside the annular cavity, the upper and lower ends of each conical feeding cylinder passing through the annular grinding table and communicating with the outside, an arc-shaped grinding plate disposed on the inner arc surface of each conical feeding cylinder near the outer circular surface of the annular grinding table, a fan-shaped hole disposed on one side of each arc-shaped grinding plate on the inner arc surface of the conical feeding cylinder, a transmission wheel rotatably disposed between each fan-shaped hole and the air storage cylinder, an annular groove disposed below the plurality of conical feeding cylinders on the upper end face of the worktable, a plurality of grinding plates uniformly disposed in a ring inside the annular groove, and a plurality of top grinding components slidably disposed in a ring above the plurality of conical feeding cylinders.

[0007] Optionally, a chip removal groove is provided inside the annular groove between every two adjacent grinding plates, and a plurality of chip removal holes are provided on the inner bottom surface of each chip removal groove. A chip storage ring groove is detachably provided below the plurality of chip removal grooves on the lower end surface of the worktable.

[0008] Optionally, each of the arc-shaped grinding plates has multiple chip guide grooves on both sides of the inner arc surface of the conical feeding cylinder.

[0009] Optionally, a cleaning sponge is provided on the lower end face of the annular grinding table between every two adjacent conical feeding cylinders.

[0010] Optionally, the top polishing assembly includes a support frame disposed outside the annular polishing table on the upper surface of the worktable, each support frame having a slide table slidably connected to its exterior, and a polishing belt rotatably connected to the underside of each slide table.

[0011] Optionally, each of the support frames is provided with a second push cylinder on its upper end face, and a sliding plate is slidably arranged between every two adjacent support frames and slide tables. The output end of each second push cylinder passes through the support frame and is fixedly connected to the upper end face of its adjacent sliding plate. Multiple sliding rods are fixedly arranged below each sliding plate on the upper end face of the slide table. Each sliding rod is slidably connected to its adjacent sliding plate, and a spring is provided on the outside of each sliding rod between the slide table and the sliding plate.

[0012] Optionally, each of the slides is fixedly provided with a waste collection cover on both sides, and each waste collection cover is provided with an electromagnet on its upper surface. The input end of each electromagnet is connected to the internal cavity of the waste collection cover.

[0013] Optionally, the upper port of the air storage cylinder is detachably provided with a circular cover plate, and an inlet fan is provided on the upper surface of the circular cover plate. The output end of the inlet fan passes through the circular cover plate and communicates with the internal cavity of the air storage cylinder. The outer surface of the air storage cylinder is provided with multiple arc-shaped grooves communicating with the annular cavity on the inner surface of the annular grinding table. One side of the multiple arc-shaped grooves is provided with multiple filter holes communicating with the internal cavity of the air storage cylinder on the outer circular surface of the air storage cylinder. The interior of the air storage cylinder is provided with multiple liquid cooling pipes. The upper port of each conical discharge cylinder is provided with multiple upper exhaust holes communicating with the annular cavity on the upper surface of the annular grinding table. The lower port of each conical discharge cylinder is provided with multiple lower exhaust holes communicating with the annular cavity on the lower surface of the annular grinding table.

[0014] Optionally, a toothed ring is provided on the upper outer surface of the annular grinding table, and a transmission toothed shaft is provided on one side of the toothed ring that meshes with the upper surface of the worktable.

[0015] Optionally, a shielding ring plate is fixedly provided below the toothed ring on the upper end surface of the worktable, and the shielding ring plate slides against the outer circular surface of the annular grinding table.

[0016] In summary, compared with existing technologies, the beneficial effects of this solution are as follows: (1) The present invention, through the setting of components such as conical feeding cylinder, grinding belt and grinding plate, can form all-round grinding of frustum-shaped NdFeB, and at the same time, under the intermittent downward pressure of components such as grinding belt, can form intermittent grinding of frustum-shaped NdFeB, so that frustum-shaped NdFeB has spare time to cool down and dissipate heat, effectively avoiding the reduction of magnetic force of frustum-shaped NdFeB due to overheating; (2) By setting up components such as chip removal groove, cleaning sponge and chip guide groove, the present invention can collect and store most of the chips generated during the grinding of the cone-shaped NdFeB, effectively reducing the air pollution caused by the magnetic powder generated during grinding, while also cleaning the grinding structure in time, improving the grinding quality, avoiding too much downtime for cleaning, and improving the overall processing efficiency. (3) By setting up components such as the inlet fan, the upper exhaust port and the lower exhaust port, the present invention can cool down multiple conical discharge cylinders, thereby forming a cooling treatment for the frustum-shaped neodymium iron boron, and further avoid the overheating heat generated by grinding from affecting the magnetism of neodymium iron boron. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is the front view of the present invention; Figure 4 for Figure 2 A three-dimensional cross-sectional view at point AA; Figure 5 for Figure 3 3D cross-sectional view at point BB; Figure 6 for Figure 5 A magnified view of a section at point C. Figure 7 for Figure 5 Enlarged view of a section at point D; Figure 8 for Figure 5 A magnified view of a section at point E in the middle; Figure 9 for Figure 4 Enlarged view of a section at point F; Figure 10 for Figure 1 A magnified view of a section at point G.

[0018] In the diagram: 10. Workbench 11. Air storage duct 12. Annular grinding table 13. Conical discharge cylinder 14. Arc-shaped grinding plate 15. Support frame 16. Slide table 17. Grinding belt 18. Grinding plate 19. Chip removal groove 20. Chip removal hole 21. Chip storage ring groove 22. Circular cover plate 22. Fan inlet 23. Filter hole 24. Arc-shaped groove 25. Upper exhaust hole 26. Lower exhaust hole 27. Baffle ring plate 28. Waste chip collection cover 29. Electromagnet 30. Liquid cooling pipe 31. Liquid cooler 32. Fan-shaped hole 33. Transmission wheel 34. Rotating shaft 35. First limiting ring 36. Second limiting ring 37. Gear ring 38. Transmission gear shaft 39. Annular cavity 40. First push cylinder 41. Sliding plate 42. Second push cylinder 43. Sliding rod 44. Spring 45. Guide rod 46. Annular groove 47. Cleaning sponge 48. Chip guide groove 49. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0020] Example 1: like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7As shown, a NdFeB surface treatment device for dysprosium infiltration of NdFeB magnets includes a worktable 10. An air storage cylinder 11 is slidably disposed on the upper end face of the worktable 10. An annular grinding table 12 is rotatably disposed outside the air storage cylinder 11. An annular cavity 40 is disposed inside the annular grinding table 12. A plurality of conical feeding cylinders 13 are evenly arranged in a ring inside the annular cavity 40. The upper and lower ends of each conical feeding cylinder 13 pass through the annular grinding table 12 and communicate with the outside. The conical feeding cylinder 13 is a cone-shaped cylinder with the upper end larger than the lower end. An arc-shaped grinding plate 14 is disposed on the inner arc surface of each conical feeding cylinder 13 near the outer circular surface of the annular grinding table 12. Each arc-shaped grinding plate 14 has a fan-shaped hole 33 on one side of the inner arc surface of the conical feeding cylinder 13. Each fan-shaped hole 33 is rotatably connected to the air storage cylinder 11, and each transmission wheel 34 is provided with a rotating shaft 35 at the center of each transmission wheel 34. Each rotating shaft 35 is rotatably connected to the annular grinding table 12, and each transmission wheel 34 is rotatably abutting against the outer circular surface of the air storage cylinder 11. An annular groove 47 is provided below the multiple conical feeding cylinders 13 on the upper end surface of the workbench 10. Multiple grinding plates 18 are uniformly arranged in a ring shape inside the annular groove 47. Multiple top grinding components are slidably arranged in a ring shape above the multiple conical feeding cylinders 13.

[0021] During grinding, multiple frustoconical NdFeB blocks need to be fitted into the conical feeding cylinder 13. Then, when the annular grinding table 12 is indirectly driven to rotate by an external power source, the annular grinding table 12 drives the frustoconical NdFeB blocks inside the conical feeding cylinder 13 to rotate. The frustoconical NdFeB blocks placed inside the conical feeding cylinder 13 rotate and abut against the outer surface of their respective drive wheels 34. The rotation of the annular grinding table 12 drives multiple drive wheels 34 to rotate along the air storage cylinder 11. The rotational contact between the drive wheels 34 and the air storage cylinder 11 causes each drive wheel 34 to rotate, which in turn drives... The frustum-shaped NdFeB inside the conical feeding cylinder 13 rotates. When the frustum-shaped NdFeB rotates, it rubs against the arc-shaped grinding plate 14 inside, grinding its conical arc surface. When the frustum-shaped NdFeB moves with the annular grinding table 12 to below the top grinding assembly, it will be pressed down on the upper surface of the frustum-shaped NdFeB under a certain degree of pressure from the top grinding assembly. At this time, the pressure between the frustum-shaped NdFeB and the transmission wheel 34 on one side will increase, which will increase the friction between the transmission wheel 34 and the frustum-shaped NdFeB, thereby driving the frustum-shaped NdFeB to rotate quickly, thus grinding the frustum-shaped NdFeB to a greater extent.

[0022] When the frustum-shaped NdFeB is not subjected to the downward pressure of the top grinding assembly, its rotation speed driven by the transmission wheel 34 is relatively small, and the squeezing friction between the frustum-shaped NdFeB and the arc-shaped grinding plate 14 is also relatively small. Therefore, the frustum-shaped NdFeB will dissipate heat on its own, thereby avoiding the problem of reduced magnetic force caused by continuous high-temperature grinding.

[0023] It should be noted that after the frustum-shaped NdFeB is placed inside the conical feeding cylinder 13, its two ends that need to be ground will slightly exceed the upper and lower ends of the annular grinding table 12. The overall thickness of the annular grinding table 12 is less than the height of the frustum-shaped NdFeB.

[0024] Furthermore, such as Figure 5 and Figure 6 As shown, each arc-shaped grinding plate 14 has multiple chip guide grooves 49 on both sides of the inner arc surface of the conical feeding cylinder 13. Between every two adjacent grinding plates 18, a chip discharge groove 19 is provided inside the annular groove 47. The inner bottom surface of each chip discharge groove 19 has multiple chip discharge holes 20. Below the multiple chip discharge grooves 19, a chip storage annular groove 21 is detachably provided on the lower end face of the worktable 10. Between every two adjacent conical feeding cylinders 13, a cleaning sponge 48 is provided on the lower end face of the annular grinding table 12. Each cleaning sponge 48 slides against the upper end face of the grinding plate 18. It should be noted that the cleaning sponge 48 is made of wear-resistant sponge, and the wear on the cleaning sponge 48 from each sliding contact with the grinding plate 18 is negligible. The conical neodymium iron boron rotates inside the conical feeding cylinder 13... During grinding, the grinding debris will enter the interior of multiple chip guide grooves 49 through the gap between the conical feeding cylinder 13, the arc-shaped grinding plate 14, and the frustum-shaped NdFeB. Then, it will flow through the chip guide grooves 49 to the bottom of the conical feeding cylinder 13. At this time, some debris will fall directly into the chip discharge groove 19 and flow through multiple chip discharge holes 20 into the chip storage ring groove 21 for storage. Some debris will fall onto the upper surface of the grinding plate 18. This debris will be swept into the chip discharge groove 19 by the cleaning sponge 48 as the annular grinding table 12 rotates. This forms a grinding and cleaning process for the frustum-shaped NdFeB, effectively avoiding the need for machine downtime for cleaning and improving work efficiency. At the same time, the chip storage ring groove 21 is fixed to the lower surface of the worktable 10 with bolts, which facilitates the subsequent cleaning of impurities stored in the chip storage ring groove 21.

[0025] Furthermore, such as Figure 1 and Figure 10As shown, the top grinding assembly includes a support frame 15 disposed outside the annular grinding table 12 on the upper surface of the worktable 10. Each support frame 15 is slidably connected to a slide table 16. A grinding belt 17 is rotatably connected below each slide table 16. The grinding belt 17 is a common grinding belt, which is existing technology. A second pusher cylinder 43 is disposed on the upper surface of each support frame 15. A sliding plate 42 is slidably disposed between every two adjacent support frames 15 and slide tables 16. The output end of each second pusher cylinder 43 passes through the support frame 15 and is fixedly connected to the upper surface of its adjacent sliding plate 42. Multiple sliding rods 44 are fixedly disposed below each sliding plate 42 on the upper surface of the slide table 16. Each sliding rod 44 is connected to... The adjacent sliding plates 42 are slidably connected. Each sliding rod 44 is provided with a spring 45 between the slide table 16 and the sliding plate 42. The second push cylinder 43 is an electric push cylinder, which is existing technology and will not be elaborated on in this solution. The output end of the second push cylinder 43 drives the second push cylinder 43 and the slide table 16 and other components to move vertically, keeping the lower grinding end face of the grinding belt 17 from contacting the upper end face of the annular grinding table 12. However, the distance between the two should be less than the thickness of the annular grinding table 12 protruding from the upper end face of the frustum-shaped NdFeB. The distance between the grinding belt 17 and the annular grinding table 12 is sensed and measured by a distance sensor provided on the lower end face of the slide table 16 to prevent the grinding belt 17 from causing wear on the upper end face of the annular grinding table 12.

[0026] Furthermore, such as Figure 1 and Figure 4 As shown, each slide 16 has a waste collection cover 29 fixedly installed on both side walls, and an electromagnet 30 is installed on the upper surface of each waste collection cover 29. The input end of each electromagnet 30 is connected to the internal cavity of the waste collection cover 29. In this application, the electromagnet 30 refers to an electromagnetic block that can generate magnetic force after being energized. When the frustum-shaped NdFeB moves with the annular grinding table 12 to the ground belt 17 for grinding, the magnetic powder can be adsorbed and stored by controlling the attraction of the electromagnet 30, which effectively avoids the magnetic powder flying away. Moreover, while adsorbing the magnetic powder, part of the magnetic force generated by the electromagnet 30 can also form an upward adsorption force on the frustum-shaped NdFeB, so that the frustum-shaped NdFeB and the grinding belt 17 are more closely attached, effectively improving the grinding effect of the frustum-shaped NdFeB. The magnetic powder adsorbed inside the waste collection cover 29 is cleaned manually periodically.

[0027] It should be noted that the magnetic attraction of the electromagnet 30 is insufficient to pull the unpolished frustum-shaped NdFeB on both sides of the polishing belt 17 out from the inside of the conical feeding cylinder 13, thus not having a negative impact on the polishing of the entire device.

[0028] Furthermore, such as Figure 5 and Figure 9As shown, a first push cylinder 41 is provided on the lower end face of the worktable 10. The output end of the first push cylinder 41 passes through the worktable 10 and is fixedly connected to the lower end face of the air storage cylinder 11. A first limiting ring 36 is provided above the outer circular surface of the air storage cylinder 11 on the annular grinding table 12. A second limiting ring 37 is provided below the outer circular surface of the air storage cylinder 11 on the annular grinding table 12. The setting of the first limiting ring 36 and the second limiting ring 37 forms a rotation limit on the annular grinding table 12 on the outer circular surface of the air storage cylinder 11. When it is necessary to clean the upper end face of the worktable 10 and replace some of the grinding plates 18, the first push cylinder 41 can be activated. The output end of the first push cylinder 41 drives the air storage cylinder 11 to move vertically upward. The air storage cylinder 11 drives the annular grinding table 12 and other components to move vertically upward, thereby increasing the distance between the worktable 10 and the annular grinding table 12, which facilitates the replacement of the grinding plates 18.

[0029] Furthermore, such as Figure 5 and Figure 8 As shown, a toothed ring 38 is provided on the upper outer surface of the annular grinding table 12. A transmission toothed shaft 39 is provided on one side of the toothed ring 38 and meshes with the upper surface of the worktable 10. A servo motor is fixedly provided below the transmission toothed shaft 39 and on the lower surface of the worktable 10. The output end of the servo motor passes through the worktable 10 and is fixedly connected to the lower surface of the transmission toothed shaft 39. When grinding the frustum-shaped NdFeB, the servo motor drives the transmission toothed shaft 39 to rotate, which in turn drives the toothed ring 38 to rotate, thereby driving the rotating rod of the annular grinding table 12 and other components to complete the grinding operation of the frustum-shaped NdFeB.

[0030] Example 2: Based on Example 1, further examples are made, such as... Figure 2 and Figure 4As shown, a circular cover plate 22 is detachably installed at the upper end of the air storage duct 11. An inlet fan 23 is installed on the upper surface of the circular cover plate 22. The output end of the inlet fan 23 passes through the circular cover plate 22 and communicates with the internal cavity of the air storage duct 11. Multiple arc-shaped grooves 25 communicating with the annular cavity 40 are provided on the inner surface of the annular grinding table 12 on the outside of the air storage duct 11. Multiple filter holes 24 communicating with the internal cavity of the air storage duct 11 are provided on one side of the multiple arc-shaped grooves 25 on the outer circular surface of the air storage duct 11. Multiple liquid cooling pipes 31 are installed inside the air storage duct 11. The upper end of the circular cover plate 22 Multiple liquid coolers 32 are provided on the surface, and the output end of each liquid cooler 32 is connected to a portion of the liquid cooling pipe 31. The liquid cooling pipe 31, in cooperation with the liquid cooler 32, forms a circulation of the coolant inside the liquid cooling pipe 31, thereby cooling the air inside the air storage cylinder 11. The upper port of each conical discharge cylinder 13 is provided with multiple upper exhaust holes 26 that communicate with the annular cavity 40 on the upper end surface of the annular grinding table 12. The lower port of each conical discharge cylinder 13 is provided with multiple lower exhaust holes 27 that communicate with the annular cavity 40 on the lower end surface of the annular grinding table 12.

[0031] During the grinding process of the frustum-shaped NdFeB, the inlet fan 23 is started simultaneously. The inlet fan 23 blows external air into the air storage cylinder 11 and cools it through multiple liquid cooling pipes 31. Then, the air entering the air storage cylinder 11 is filtered through multiple filter holes 24 and enters the annular cavity 40 through multiple arc grooves 25. Finally, it is discharged through multiple upper exhaust holes 26 and lower exhaust holes 27. When the air is discharged through the upper exhaust holes 26 and lower exhaust holes 27, it will contact the outer conical arc surface of the conical discharge cylinder 13, thereby cooling the conical discharge cylinder 13. At this time, the frustum-shaped NdFeB will cool down rapidly through contact with the conical discharge cylinder 13, effectively preventing the frustum-shaped NdFeB from generating high temperature during processing, which would reduce its own magnetism.

[0032] Furthermore, such as Figure 4 and Figure 8 As shown, a shielding ring plate 28 is fixedly installed below the toothed ring 38 on the upper end surface of the worktable 10. The shielding ring plate 28 slides against the outer circular surface of the annular grinding table 12. By setting the shielding ring plate 28, the magnetic powder generated during grinding between the worktable 10 and the annular grinding table 12 can be effectively prevented from being blown away by the air discharged from the multiple lower exhaust holes 27.

[0033] Finally, it should be noted that the NdFeB surface treatment device for dysprosium infiltration on NdFeB surfaces in this invention protects the various mechanical structures and related motion logic in this solution. Therefore, it does not elaborate on the various sensors, detectors, and driving components required for the actual operation of the specific mechanical structures. However, for those skilled in the art, various control systems and electrical connection methods, including various electrical components and driving components, can be completed using conventional technical means. As long as the beneficial effects or the specific actions during the above-mentioned work can be achieved, it can be implemented. This solution does not impose too many restrictions.

[0034] Furthermore, the grinding belt, inlet fan, liquid cooling pipe, liquid cooler, electromagnet, push cylinder, motor, etc. in the NdFeB surface treatment device for dysprosium infiltration of NdFeB in this invention are all commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0035] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0036] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A neodymium iron boron surface treatment apparatus for dysprosium infiltration on neodymium iron boron surfaces, comprising a worktable (10), characterized in that, An air storage cylinder (11) is slidably disposed on the upper end face of the workbench (10). An annular grinding table (12) is rotatably disposed outside the air storage cylinder (11). An annular cavity (40) is disposed inside the annular grinding table (12). Multiple conical feeding cylinders (13) are evenly disposed in a ring inside the annular cavity (40). The upper and lower ends of each conical feeding cylinder (13) pass through the annular grinding table (12) and communicate with the outside. An arc is disposed on the inner arc surface of each conical feeding cylinder (13) near the outer circular surface of the annular grinding table (12). The grinding plate (14) has a fan-shaped hole (33) on one side of the inner arc surface of the conical feeding cylinder (13). A transmission wheel (34) is rotatably arranged between each fan-shaped hole (33) and the air storage cylinder (11). An annular groove (47) is provided on the upper end surface of the worktable (10) below the multiple conical feeding cylinders (13). Multiple grinding plates (18) are uniformly arranged in a ring shape inside the annular groove (47). Multiple top grinding components are slidably arranged in a ring shape above the multiple conical feeding cylinders (13).

2. The NdFeB surface treatment apparatus for dysprosium infiltration on NdFeB surfaces according to claim 1, characterized in that, Between each two adjacent grinding plates (18), a chip removal groove (19) is provided inside the annular groove (47). Each chip removal groove (19) has multiple chip removal holes (20) on its inner bottom surface. A chip storage annular groove (21) is detachably provided below the multiple chip removal grooves (19) on the lower end surface of the worktable (10).

3. The NdFeB surface treatment apparatus for dysprosium infiltration on NdFeB surfaces according to claim 1, characterized in that, Each of the conical feeding cylinders (13) has multiple chip guide grooves (49) on its inner arc surface.

4. The NdFeB surface treatment apparatus for dysprosium infiltration on NdFeB surfaces according to claim 3, characterized in that, A cleaning sponge (48) is provided on the lower end face of the annular grinding table (12) between every two adjacent conical feeding cylinders (13).

5. The NdFeB surface treatment apparatus for dysprosium infiltration on NdFeB surfaces according to claim 1, characterized in that, The top polishing assembly includes a support frame (15) disposed outside the annular polishing table (12) on the upper surface of the worktable (10). Each support frame (15) is slidably connected to a slide table (16), and a polishing belt (17) is rotatably connected to the bottom of each slide table (16).

6. The NdFeB surface treatment apparatus for dysprosium infiltration on NdFeB surfaces according to claim 5, characterized in that, Each of the support frames (15) is provided with a second push cylinder (43) on its upper end face. A sliding plate (42) is slidably arranged between every two adjacent support frames (15) and slide tables (16). The output end of each second push cylinder (43) passes through the support frame (15) and is fixedly connected to the upper end face of its adjacent sliding plate (42). Multiple sliding rods (44) are fixedly arranged below each sliding plate (42) on the upper end face of the slide table (16). Each sliding rod (44) is slidably connected to its adjacent sliding plate (42). A spring (45) is provided outside each sliding rod (44) between the slide table (16) and the sliding plate (42).

7. The NdFeB surface treatment apparatus for dysprosium infiltration on NdFeB surfaces according to claim 6, characterized in that, Each slide (16) has a waste collection cover (29) fixedly installed on both sides of its sidewalls. Each waste collection cover (29) has an electromagnet (30) installed on its upper surface. The input end of each electromagnet (30) is connected to the internal cavity of the waste collection cover (29).

8. The NdFeB surface treatment apparatus for dysprosium infiltration on NdFeB surfaces according to claim 1, characterized in that, The upper end of the air storage cylinder (11) is detachably provided with a circular cover plate (22). An inlet fan (23) is provided on the upper surface of the circular cover plate (22). The output end of the inlet fan (23) passes through the circular cover plate (22) and communicates with the internal cavity of the air storage cylinder (11). The outer surface of the air storage cylinder (11) is provided with multiple arc-shaped grooves (25) that communicate with the annular cavity (40) on the inner surface of the annular grinding table (12). One side of the multiple arc-shaped grooves (25) is provided on the outer circular surface of the air storage cylinder (11). The air storage cylinder (11) is provided with multiple filter holes (24) that communicate with the internal cavity of the air storage cylinder (11). The air storage cylinder (11) is provided with multiple liquid cooling pipes (31). The upper port of each conical discharge cylinder (13) is provided with multiple upper exhaust holes (26) that communicate with the annular cavity (40) on the upper end face of the annular grinding table (12). The lower port of each conical discharge cylinder (13) is provided with multiple lower exhaust holes (27) that communicate with the annular cavity (40) on the lower end face of the annular grinding table (12).

9. The NdFeB surface treatment apparatus for dysprosium infiltration on NdFeB surfaces according to claim 8, characterized in that, The upper outer surface of the annular grinding table (12) is provided with a toothed ring (38), and a transmission toothed shaft (39) is provided on one side of the toothed ring (38) in mesh with the upper surface of the worktable (10).

10. A neodymium iron boron surface treatment apparatus for dysprosium infiltration on neodymium iron boron surfaces according to claim 9, characterized in that, A shielding ring plate (28) is fixedly provided below the toothed ring (38) on the upper end surface of the worktable (10), and the shielding ring plate (28) slides against the outer circular surface of the annular grinding table (12).

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