A magnet slicing device for neodymium iron boron magnet processing

Abstract

The present application relates to the technical field of magnet slicing, in particular to a magnet slicing device for neodymium iron boron magnet processing, comprising a base, the base is symmetrically provided with positioning frames, two positioning frames are jointly provided with a hanging bracket, the middle part of the hanging bracket is rotatably provided with three groups of rotating shafts arranged in a triangular shape through a motor, each group of rotating shafts is provided with a plurality of installation barrels arranged at equal intervals, two adjacent installation barrels are detachably provided with a dismounting piece through a dismounting part, the outer part of the dismounting piece is clamped and nested with a rotating wheel, the rotating wheels arranged in a triangular shape in the same plane are jointly provided with a diamond wire for cutting neodymium iron boron magnets, the present application can quickly switch the distance between the diamond wires, adapt to the processing of neodymium iron boron slices with various thicknesses, the adjusting process is stable, the rotating wheel is not easy to fall off, and the operation is simple, the layered progressive cutting of thick specifications of neodymium iron boron blanks can be realized, the cutting damage is effectively reduced, the yield of finished products is improved, the service life of the diamond wire is prolonged, a single worn wire body can be replaced alone, and the rotating shaft assembly does not need to be disassembled as a whole.

Description

Technical Field

[0001] This invention relates to the field of magnet slicing technology, specifically a magnet slicing apparatus for processing neodymium iron boron magnets. Background Technology

[0002] Neodymium iron boron (NdFeB) magnets are currently the most widely used and best-performing rare-earth permanent magnet material in industrial applications. They possess outstanding advantages such as high remanence, high coercivity, and high energy product, and are widely used in numerous fields including new energy vehicles, wind power equipment, smart home appliances, precision electronics, and aerospace. In the production process of NdFeB magnets, the large sintered magnet blanks need to be sliced ​​into standard thin sheets of different thicknesses to meet the requirements of subsequent grinding, electroplating, and assembly processes. Due to the high hardness, brittleness, and poor impact resistance of neodymium iron boron (NdFeB) materials, they are prone to edge chipping, cross-sectional cracks, and uneven cut surfaces during cutting. Therefore, the structural rationality, cutting stability, and ease of adjustment of slicing equipment directly determine the finished product qualification rate and overall production capacity of magnet slices. Currently, traditional NdFeB magnet slicing equipment still suffers from many industry pain points, making it difficult to adapt to the current demands for high-precision, multi-specification, and high-efficiency large-scale production: Firstly, most conventional slicing equipment on the market uses a single cutting wire or fixed blade cutting, which can only complete the cutting of a single magnet at a time, resulting in low processing efficiency and an inability to meet the production cycle of large-volume orders. Moreover, the hard contact cutting of blades has a large impact force, which can easily cause large-area edge chipping of brittle magnets, resulting in a high product scrap rate. Secondly, most existing multi-wire cutting equipment has a fixed diamond wire spacing, which cannot flexibly adjust the slicing thickness according to production needs. To process thin slices of different specifications, it is necessary to replace the entire cutting wheel and tooling fixture, which is time-consuming, costly, and has extremely poor equipment versatility. Third, diamond wire is a consumable material that is easily worn out. After long-term high-speed cutting, problems such as stretching and loosening, wear and breakage will occur. Traditional equipment cannot accurately and adaptively adjust the tension of the diamond wire. After the wire loosens, problems such as cut surface deviation and cutting skew will occur. At the same time, the traditional rotary wheel structure uses bolt-fixed installation. Disassembly and replacement of diamond wire and rotary wheel require professional tools such as wrenches. The disassembly and assembly steps are cumbersome, the equipment downtime for maintenance is long, and it seriously affects the continuous production efficiency. Fourth, most existing slicing equipment only has a vertical downward unidirectional feed cutting function. The magnet blank remains stationary during the cutting process. The wire continuously grinds the same position of the workpiece. The single-sided concentrated force will further aggravate the problem of magnet edge breakage and cracking. Moreover, it cannot flexibly adjust the cutting feed depth and is difficult to adapt to diversified processing technology such as half cutting and full cutting. The equipment's adaptability is limited. Fifth, the traditional workpiece clamping mechanism has a single clamping method and can only achieve simple fixation. It cannot adapt to magnet blanks of different widths and specifications. The clamping stability is insufficient. The workpiece is prone to slight slippage and displacement during the cutting process, which further reduces the slicing accuracy. In summary, existing NdFeB magnet slicing devices suffer from a series of drawbacks, including low processing efficiency, poor finished product surface quality, inflexible adjustment of slice thickness, inconvenient disassembly and assembly of consumables, uneven workpiece cutting force, and low automation. The industry urgently needs a new type of magnet slicing device that can adaptively adjust cutting thickness, adjust diamond wire tension, allow workpiece rotation for uniform cutting, support rapid disassembly and assembly of consumables, and integrate clamping, feeding, and cutting operations. This would address the shortcomings of existing technologies and improve the overall technological level and production efficiency of NdFeB magnet slicing. Summary of the Invention

[0003] The purpose of this invention is to provide a magnet slicing apparatus for processing neodymium iron boron magnets, so as to solve the problems mentioned in the background art.

[0004] The objective of this invention can be achieved through the following technical solutions: A magnet slicing device for processing neodymium iron boron magnets includes a base with symmetrically arranged positioning frames on the base. A hanger is installed between two positioning frames. Three sets of triangularly arranged rotating shafts are mounted in the middle of the hanger via a motor. Each set of rotating shafts has multiple equidistantly arranged mounting cylinders. Adjacent mounting cylinders are detachably connected by a disassembly / assembly part. A rotating wheel is nested and engaged with the disassembly / assembly part. Diamond wire for cutting neodymium iron boron magnets is installed between the triangularly arranged rotating wheels in the same plane. One side of one set of rotating shafts is also provided with an adjustment module to adjust the spacing between multiple diamond wires to achieve multiple slices of different thicknesses. The upper set of rotating shafts is also provided with a control unit for adjusting the tension of multiple diamond wires. The base is provided with a placement unit for clamping and rotating the neodymium iron boron magnets during slicing to ensure that their exterior is uniformly cut by the diamond wires.

[0005] Preferably, the placement unit includes two symmetrical sleeve plates. An inner plate is slidably installed in the middle of the sleeve plates. A locking mechanism is provided between the inner plate and the sleeve plates to allow the inner plate to slide upward only within the sleeve plates. When the locking mechanism is released, the inner plate can slide downward within the sleeve plates. A telescopic rod is rotatably installed in the middle of the inner plate. A gear is fixedly installed on the outside of the telescopic rod. Symmetrically arranged outer cylinders are fixedly installed at the telescopic ends of the two telescopic rods. A triangular chuck is provided inside the outer cylinder to clamp the neodymium iron boron magnet.

[0006] Preferably, the placement unit also includes a side plate fixed to one side of the built-in plate, a telescopic rod two is rotatably mounted on the side plate, a gear two is fixedly mounted on the telescopic end of the telescopic rod two, and a lifting part is provided on one side of the gear two to control the built-in plate to move upward within the sleeve so that the neodymium iron boron magnet is cut to different depths by the diamond wire.

[0007] Preferably, the lifting unit includes a vertical plate fixed to the base, and a rack that meshes with the telescopic rod is fixedly installed on one side of the vertical plate.

[0008] Preferably, the disassembly / assembly part includes a cross groove formed on the mounting cylinder, symmetrically arranged cross plates are slidably installed in the cross groove, and a spring located inside the mounting cylinder is connected between the two cross plates. A locking rod is fixedly installed on the side of the two cross plates that is far apart from each other, and slides through the side of the mounting cylinder. When the locking rod engages with the locking groove on the side of the disassembly / assembly part, the disassembly / assembly part is fixed.

[0009] Preferably, the control module includes a U-shaped frame connected to the base, an electric push rod is fixedly installed at the center of the lower end face of the U-shaped frame, a connecting plate is fixedly installed at the telescopic end of the electric push rod, and multiple inverted V-shaped frames are fixedly installed at the lower end face of the connecting plate.

[0010] Preferably, the control module further includes a long rod fixedly connected to the U-shaped frame. Multiple external blocks corresponding to the rotating wheels are slidably installed on the long rod. A spring sleeved on the outside of the long rod is connected between two adjacent external blocks. A trapezoidal frame is fixedly installed above the external blocks. A C-shaped frame is fixedly installed on the side of the trapezoidal frame facing the rotating wheel. Two symmetrically arranged pull rods are slidably installed on the C-shaped frame.

[0011] Preferably, the two sides of the rotating wheel are provided with annular grooves, and arc-shaped blocks are installed on the side of the two pull rods that are close to each other. Springs are sleeved on the outside of the pull rods, and the springs are located between the arc-shaped blocks and the C-shaped frame.

[0012] Preferably, the control unit includes guide plates fixed on both sides of the middle of the hanger, a groove is provided in the middle of the guide plate, a horizontal plate is slidably installed between the grooves on both sides, a cylinder is installed between the upper surface of the horizontal plate and the hanger, a hanging plate is provided on the side of the two guide plates that are close to each other and is fixed to the horizontal plate, and a set of rotating shafts at the center is rotatably connected to the hanging plate.

[0013] Preferably, the locking mechanism includes a gear frame fixedly installed at the bottom of the built-in plate, a fixed seat located in the inner cavity of the sleeve plate on one side of the gear frame, a swing plate rotatably installed in the middle of the fixed seat, a locking tooth for engaging the gear frame on one side of the swing plate, a spring connecting the swing plate and the fixed seat, an arc-shaped groove communicating with the inner cavity of the sleeve plate on one side of the sleeve plate, a docking rod fixed to the swing plate slidably installed in the arc-shaped groove, and a control rod rotatably installed on the outside of the sleeve plate, a drive plate slidably installed on the control rod along its axis, and a docking hole opened on the drive plate.

[0014] The beneficial effects of this invention are: 1. This invention enables simultaneous slicing of multiple diamond wires, and with the addition of a workpiece autonomous rotation feeding structure, it allows the outer circumference of the neodymium iron boron magnet blank to be cut evenly, effectively avoiding processing defects such as edge chipping, rough cross-section, and tilted cut surface that occur when cutting hard and brittle magnets, and significantly improving the quality of finished magnet slices and the processing qualification rate.

[0015] 2. This invention can flexibly adjust the spacing and tension of the diamond wires, and can process magnet slices of various thicknesses without changing the cutting accessories. It can adapt to diverse production and processing needs, and the equipment has strong versatility, which can effectively reduce production changeover costs and improve overall processing adaptability.

[0016] 3. This invention can quickly complete the disassembly and replacement of the rotating wheel and diamond wire. At the same time, the whole machine integrates the functions of workpiece clamping, rotation, lifting and feeding, with a high degree of automation, reducing manual intervention and the workload of loading and unloading adjustment, which not only improves the efficiency of equipment maintenance, but also optimizes the overall slicing processing efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the front side of the overall front structure of the present invention; Figure 2 This is a schematic diagram of a partial structure on the base of the present invention; Figure 3 This is a schematic diagram of the placement unit structure of the present invention; Figure 4 This is a schematic diagram of the back structure of the control module of the present invention; Figure 5 This is a schematic diagram of the front side of the control module of the present invention; Figure 6 This is a schematic diagram of the structure when one of the diamond wires of the present invention cuts a neodymium iron boron magnet; Figure 7 This is a schematic diagram of the structure between the mounting cylinder and the disassembly / assembly parts of the present invention; Figure 8 This is a schematic diagram of the disassembly and assembly structure of one side of the present invention; Figure 9 This is a schematic diagram of the external structure of the locking mechanism of the present invention; Figure 10 This is a schematic diagram of the locking mechanism of the present invention located inside the sleeve plate.

[0019] The attached figures are labeled as follows: 1. Base; 10. Positioning frame; 11. Hanger; 12. Rotating shaft; 121. Hanging plate; 122. Guide plate; 123. Horizontal plate; 124. Cylinder; 13. Mounting cylinder; 131. Cross groove; 132. Cross plate; 133. Locking rod; 14. Disassembly / assembly parts; 15. Rotating wheel; 16. Diamond wire; 17. Ring groove; 20. Long rod; 201. External block; 202. Trapezoidal frame; 203. C-shaped frame; 204. Tie rod; 205. Arc-shaped block; 21. 0. U-shaped frame; 211. Electric push rod; 212. Connecting plate; 213. Inverted V-shaped frame; 3. Sleeve plate; 30. Internal plate; 31. Telescopic rod one; 310. External cylinder; 32. Gear one; 33. Side plate; 34. Telescopic rod two; 35. Gear two; 4. Vertical plate; 43. Rack; 5. Gear frame; 51. Fixed base; 52. Swing plate; 53. Clamping tooth; 54. Arc groove; 55. Control rod; 56. Drive plate; 57. Docking hole; 58. Docking rod. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-10 As shown, this invention is a magnet slicing device for processing neodymium iron boron magnets, including a base 1. Positioning frames 10 are symmetrically arranged on the base 1. A hanger 11 is installed between two positioning frames 10. Three sets of triangularly arranged rotating shafts 12 are rotatably mounted in the middle of the hanger 11 via a motor. Each set of rotating shafts 12 has multiple equidistantly arranged mounting cylinders 13. A disassembly / assembly part 14 is detachably installed between adjacent mounting cylinders 13 via a disassembly / assembly part. A rotating wheel 15 is externally engaged and nested within the disassembly / assembly part 14. Within the same plane... The rotating wheels 15 arranged in a triangle are equipped with diamond wires 16 for cutting neodymium iron boron magnets. One side of one set of rotating shafts 12 is also provided with a control module to adjust the spacing between multiple diamond wires 16 so that the slices can be cut to different thicknesses. The upper set of rotating shafts 12 is also provided with a control unit for adjusting the tension of multiple diamond wires 16. The base 1 is provided with a placement unit for clamping and rotating the neodymium iron boron magnets during the slicing operation so that their exteriors can be evenly cut by the diamond wires 16.

[0022] The base 1 provides installation support and operating benchmark for all components of the machine, ensuring the stability of equipment operation; two sets of symmetrically distributed positioning frames 10 are fixed above the base 1 to realize the suspended positioning installation of the hanger 11, avoiding the hanger from shifting and shaking during cutting operations; the hanger 11 serves as the load-bearing structure of the upper cutting rotating assembly, providing stable installation points for the three sets of rotating shafts 12 and the control unit; The motor provides rotational power to three sets of rotating shafts 12, which are arranged in a triangle to work with the tensioned diamond wire 16 to form a closed-loop wire cutting structure. Multiple mounting cylinders 13 are evenly distributed on each set of rotating shafts 12 for batch assembly of rotating wheels 15. With multiple parallel diamond wires 16, multiple magnets can be sliced ​​simultaneously at one time, greatly improving the slicing processing efficiency. Wire cutting based on diamond wire 16 can reduce the brittle chipping and cracking problems of neodymium iron boron magnets compared with traditional blade cutting, thus improving the yield of finished slices.

[0023] The disassembly and assembly section consists of a cross groove 131, a cross plate 132, a locking rod 133, and disassembly and assembly parts 14, which enables quick and easy disassembly and assembly of the rotating wheel 15 and the mounting cylinder 13, solving the problems of cumbersome replacement of worn diamond wire and disassembly and assembly of the rotating wheel for maintenance. The mounting cylinder 13 has a cross groove 131 inside, which provides a limiting sliding track for two sets of symmetrical cross plates 132, ensuring that the cross plates can only slide in opposite directions laterally. A return spring is built between the two sets of cross plates 132. Under normal conditions, it pushes the cross plates 132 away from both sides, causing the locking rod 133 to extend outward. The extended locking rod 133 can be inserted into the side slot of the disassembly / assembly part 14 to quickly lock and fix the disassembly / assembly part 14 and the external nested rotating wheel 15. Pressing the two side levers 133 compresses the internal spring, releases the locking limit, and allows direct removal of the disassembly part 14 and the rotating wheel 15 without the need for professional tools, simplifying the diamond wire replacement and rotating wheel maintenance process and reducing equipment maintenance costs. The placement unit includes two symmetrical sleeve plates 3. An inner plate 30 is slidably installed in the middle of the sleeve plate 3. A locking mechanism is provided between the inner plate 30 and the sleeve plate 3 to allow the inner plate 30 to slide upward within the sleeve plate 3. When the locking mechanism is released, the inner plate 30 can slide downward within the sleeve plate 3. A telescopic rod 31 is rotatably installed in the middle of the inner plate 30. A gear 32 is fixedly installed on the outside of the telescopic rod 31. External cylinders 310 are fixedly installed at the telescopic ends of the telescopic rods 31 on both sides. A triangular chuck is provided inside the external cylinder 310 to clamp the neodymium iron boron magnet.

[0024] The placement unit is used to clamp and fix the neodymium iron boron magnet workpiece, automatically rotate it, and lift and feed it, so that the magnet workpiece can make uniform contact with the diamond wire 16 from all directions. At the same time, the cutting depth can be adjusted to adapt to different slicing processing needs.

[0025] Two sets of symmetrical sleeve plates 3 are fixed above the base 1, serving as the sliding support base for the inner plate 30. Under normal conditions, the locking mechanism restricts the inner plate 30 to slide only upwards, preventing the workpiece from accidentally falling during the cutting process and causing deviations in the cutting dimensions. After the lock is released, the inner plate 30 can slide freely downwards, facilitating loading and unloading and workpiece resetting.

[0026] Telescopic rod 31 is rotatably mounted in the middle of the built-in plate 30, and can adaptively adjust the left and right clamping distance to accommodate neodymium iron boron magnet blanks of different widths. External cylinders 310 are symmetrically installed at the ends of telescopic rods 31 on both sides. The triangular chuck inside the cylinder can clamp the magnet workpiece from three directions to ensure stable clamping and prevent slippage and displacement during cutting of brittle magnets. Gear 32, in conjunction with the transmission structure, can drive the telescopic rod 31 to rotate as a whole, realizing 360° uniform rotation of the magnet workpiece, allowing the outer circumference of the workpiece to be uniformly cut with diamond wire, avoiding defects such as excessive cutting on one side and uneven cut surfaces. Side plate 33 is fixed to one side of built-in plate 30, providing rotational support for telescopic rod 34; telescopic rod 34 can finely adjust the transmission distance, gear 35 meshes with meshing gear 43 fixed on vertical plate 4, and in conjunction with the lifting part power structure, drives built-in plate 30 to rise and fall vertically along sleeve plate 30; by changing the relative height between magnetic workpiece and diamond wire 16, the cutting feed depth is precisely controlled to meet the needs of different processing techniques such as shallow cutting and full cutting.

[0027] The placement unit also includes a side plate 33 fixed to one side of the built-in plate 30. A telescopic rod 34 is rotatably mounted on the side plate 33. A gear 35 is fixedly mounted on the telescopic end of the telescopic rod 34. A lifting part is provided on one side of the gear 35 to control the built-in plate 30 to move upward within the sleeve plate 3 so that the neodymium iron boron magnet is cut to different depths by the diamond wire 16.

[0028] The lifting unit includes a vertical plate 4 fixed to the base 1, and a rack 43 that meshes with the telescopic rod 35 is fixedly installed on one side of the vertical plate 4.

[0029] The disassembly and assembly part includes a cross groove 131 formed on the mounting cylinder 13. A cross plate 132 symmetrically arranged is slidably installed in the cross groove 131. A spring located inside the mounting cylinder 13 connects the two cross plates 132. A locking rod 133 that passes through and slides on the side of the mounting cylinder 13 is fixedly installed on the side of the two cross plates 132 that are far apart. When the locking rod 133 engages with the locking groove on the side of the disassembly and assembly part 14, the disassembly and assembly part 14 is fixed.

[0030] The control module includes a U-shaped frame 210 connected to the base 1. An electric push rod 211 is fixedly installed at the center of the lower end face of the U-shaped frame 210. A connecting plate 212 is fixedly installed at the telescopic end of the electric push rod 211. Multiple inverted V-shaped frames 213 are fixedly installed on the lower end face of the connecting plate 212.

[0031] The control module is used to precisely adjust the lateral spacing between multiple diamond wires 16, thereby directly changing the thickness of a single slice. It can simultaneously process magnet slices of various thicknesses without changing equipment parts, thus improving the versatility of the equipment. The U-shaped frame 210 is fixed above the base 1 and serves as the support base for the control module. The electric push rod 211 drives the connecting plate 212 to rise and fall vertically through extension and retraction. Multiple inverted V-shaped frames 213 are arrayed below the connecting plate 212. During the lifting and lowering process, the corresponding trapezoidal frame 202 can be pressed down synchronously to realize the synchronous linkage of multiple adjustment structures and ensure the synchronicity of all diamond wire spacing adjustments. The long rod 20 provides a horizontal sliding guide for the outer block 201, and the spring between adjacent outer blocks 201 plays a reset buffering role; when the inverted V frame 213 presses down on the trapezoidal frame 202, it drives the outer block 201 to slide horizontally along the long rod 20, changing the center distance between adjacent rotating wheels 15, and finally adjusting the gap width of the parallel diamond wire 16. The C-shaped frame 203 is fixed to the front end of the trapezoidal frame 202. Two sets of symmetrical tie rods 204, together with the outer spring, push the arc-shaped block 205 into the annular grooves 17 on both sides of the rotating wheel 15, so as to achieve non-damaging clamping of the rotating wheel 15. The arc-shaped block fits against the inner wall of the annular groove, so it will not hinder the rotation of the rotating wheel 15 itself during the adjustment process. This ensures the accuracy of the spacing adjustment and does not affect the normal cutting operation of the diamond wire, thus avoiding interference of the adjustment structure with the cutting action.

[0032] The control module also includes a long rod 20 fixedly connected to the U-shaped frame 210. Multiple external blocks 201 corresponding to the rotating wheel 15 are slidably installed on the long rod 20. A spring sleeved on the outside of the long rod 20 is connected between two adjacent external blocks 201. A trapezoidal frame 202 is fixedly installed above the external blocks 201. A U-shaped frame 203 is fixedly installed on the side of the trapezoidal frame 202 facing the rotating wheel 15. Two symmetrically arranged pull rods 204 are slidably installed on the U-shaped frame 203.

[0033] The rotating wheel 15 has annular grooves 17 on both sides. Two pull rods 204 are each equipped with an arc-shaped block 205 on the side close to each other. A spring is sleeved on the outside of the pull rod 204, and the spring is located between the arc-shaped block 205 and the shaped frame 203.

[0034] The control unit includes guide plates 122 fixed on both sides of the middle of the hanger 11. A groove is provided in the middle of the guide plate 122, and a horizontal plate 123 is slidably installed between the grooves on both sides. A cylinder 124 is installed between the upper end of the horizontal plate 123 and the hanger 11. A hanging plate 121 fixed to the horizontal plate 123 is provided on the side of the two guide plates 122 that are close to each other. A set of rotating shafts 12 at the center is rotatably connected to the hanging plate 121. The control unit is used to adjust the overall tension of the triangularly arranged diamond wire 16 in real time, so as to solve the problems of tension relaxation, cutting surface deviation and increased probability of wire breakage after long-term cutting of diamond wire, and adapt to the tension requirements of cutting magnets of different thicknesses.

[0035] Guide plates 122 are fixed on both sides of the middle part of the hanger 11. The guide plates 122 have vertical sliding grooves to provide vertical sliding limit for the horizontal plate 123. The hanging plate 121 connects the horizontal plate 123 to the central rotating shaft 12. When the horizontal plate 123 slides up and down along the guide plate 122 groove, it can drive the central rotating shaft 12 to move vertically as a whole. By changing the relative distance between the central rotating shaft 12 and the other two sets of rotating shafts, the wrapping tension of the diamond wire 16 between the three rotating shafts can be directly adjusted, thereby achieving adaptive adjustment of the diamond wire tightness; ensuring that the diamond wire always maintains constant tension, improving the flatness of the cutting surface, and extending the service life of the diamond wire.

[0036] This invention employs a multi-line synchronous cutting + workpiece rotation structure to achieve uniform slicing of magnets from all directions, effectively solving the problems of edge chipping and rough cross-section when cutting hard and brittle NdFeB materials. The control module can infinitely adjust the diamond wire spacing, and a single machine can produce magnet slices of various thicknesses to meet diverse production needs. It has a built-in spring-type disassembly and assembly part to achieve quick disassembly and replacement of the rotating wheel and diamond wire, improving equipment maintenance efficiency. The placement unit has clamping, rotation, lifting and feeding functions, with a high degree of automation, reducing the workload of manual loading and unloading and alignment adjustment.

[0037] The locking mechanism includes a gear frame 5 fixedly installed at the bottom of the built-in plate 30. A fixed seat 51 located in the inner cavity of the sleeve plate 3 is also provided on one side of the gear frame 5. A swing plate 52 is rotatably installed in the middle of the fixed seat 51. A locking tooth 53 that engages with the gear frame 5 is provided on one side of the swing plate 52. A spring is connected between the swing plate 52 and the fixed seat 51. An arc-shaped groove 54 communicating with the inner cavity of the sleeve plate 3 is provided on one side of the sleeve plate 3. A docking rod 58 fixed to the swing plate 52 is slidably installed in the arc-shaped groove 54. A control rod 55 is rotatably installed on the outside of the sleeve plate 3. A drive plate 56 is slidably installed on the control rod 55 along its axis. A docking hole 57 is opened on the drive plate 56.

[0038] After the neodymium iron boron magnet is cut, when the built-in plate 30 slides down and resets in the sleeve plate 3, the worker first manually pushes the drive plate 56 on the control rod 55 to move towards the sleeve plate 3. During the movement, the docking hole 57 and the docking rod 58 must be kept on the same axis. After the docking hole 57 is fitted over the outside of the docking rod 58, the control rod 55 is rotated to make the drive plate 56 drive the arc groove 54 to rotate. When the arc groove 54 rotates, it drives the swing plate 52 to rotate. When the swing plate 52 rotates, the locking tooth 53 cancels the locking of the tooth frame 5, and the built-in plate 30 moves down and resets in the sleeve plate 3 under the action of gravity.

[0039] Working principle: In the initial standby state, the locking mechanism inside the symmetrically arranged sleeve plate 3 above the base 1 is locked, restricting the inner plate 30 to slide upwards in only one direction, thus avoiding the risk of the inner plate 30 accidentally falling during workpiece loading. The operator places the neodymium iron boron magnet blank to be processed between the two sets of outer cylinders 310. By adjusting the telescopic rod 31 rotatably mounted on the inner plate 30, the operator adapts it to the actual lateral width of the magnet blank. Then, the triangular chuck inside the outer cylinder 310 is activated to clamp the magnet blank circumferentially from three directions, preventing the workpiece from slipping or shifting during cutting. After the workpiece is clamped, the telescopic rod 31 rotatably mounted on the side plate 33 is activated. The telescopic rod 34 drives the end gear 35 to rotate. The gear 35 meshes with the meshing gear 43 fixed on the vertical plate 4, thereby driving the inner plate 30 to slide vertically upward along the sleeve plate 3, which in turn drives the clamped and fixed magnet blank to feed upward. This allows for precise control of the vertical distance between the magnet blank and the diamond wire 16, achieving precise control of the cutting depth. At the same time, during the operation, the gear 32 fixed outside the telescopic rod 31 continuously drives the telescopic rod 31, the outer cylinder 310, and the magnet blank to rotate 360° at a uniform speed, so that the outer circumference of the magnet blank can evenly contact the diamond wire 16, avoiding defects such as chipping and tilted cut surfaces caused by concentrated cutting on one side of the brittle magnet. Before the formal cutting operation begins, the tension calibration of the diamond wire 16 is first completed through the control unit. Guide plates 122 are fixed on both sides of the middle of the hanger 11. The guide plates 122 have vertical grooves. The horizontal plate 123 slides vertically along the grooves of the guide plates 122, which simultaneously drives the hanging plate 121 and the central rotating shaft 12 connected to the hanging plate 121 to move up and down, changing the relative distance between the three sets of triangularly distributed rotating shafts 12, thereby adjusting the overall tension of the diamond wire 16 covering the outside of the rotating wheel 15, ensuring that the diamond wire 16 always maintains a stable cutting tension, and preventing cutting vibration and wire breakage problems. Subsequently, based on the required slice thickness, the control module is activated. The electric push rod 211 at the lower end of the U-shaped frame 210 fixed on the base 1 performs a vertical telescopic movement, pushing the connecting plate 212 to rise and fall synchronously. At the bottom of the connecting plate 212, multiple sets of inverted V-shaped frames 213 simultaneously press down on the corresponding trapezoidal frames 202, causing the external block 201, which is slidably mounted on the long rod 20, to overcome the spring force between adjacent blocks and slide horizontally, synchronously changing the installation spacing of each set of rotating wheels 15. At the same time, the pull rod 204 inside the U-shaped frame 203, under the action of the matching spring, pushes the arc-shaped block 205 to be stably inserted into the annular grooves 17 on both sides of the rotating wheel 15. Under the premise of limiting and fixing the rotating wheel 15 and ensuring the accuracy of spacing adjustment, it does not interfere with the rotational movement of the rotating wheel 15 itself, and finally realizes the synchronous adjustment of the spacing of multiple parallel diamond wires 16 to adapt to the processing needs of magnet slices of different thicknesses.After all cutting parameters are adjusted, the motor installed in the middle of the hanger 11 is started. The motor drives the three sets of triangularly arranged rotating shafts 12 to rotate synchronously at high speed. The mounting cylinders 13, which are equidistantly installed on the rotating shafts 12, rotate synchronously. The mounting cylinders 13 fix the disassembly and assembly parts 14 through the disassembly and assembly parts. The rotating wheel 15 nested outside the disassembly and assembly parts 14 rotates at high speed, which in turn drives the diamond wire 16 that is closed and surrounds the outside of the three sets of rotating wheels 15 to circulate at high speed. With the magnetic blanks that are continuously fed upward at a constant speed by the unit below and are constantly rotating themselves, the synchronous wire cutting of multiple magnets is completed at one time, improving the overall processing efficiency. When the diamond wire 16 wears out after long-term use and needs to be replaced or maintained, there is no need to disassemble the entire structure of the rotating shaft 12. Simply press the exposed locking rods 133 on both sides of the mounting cylinder 13, causing the locking rods 133 to drive the cross plates 132 to slide in opposite directions along the cross grooves 131, compressing the built-in springs between the cross plates 132, and allowing the locking rods 133 to disengage from the side slots of the disassembly / assembly part 14. The disassembly / assembly part 14 and the rotating wheel 15 can then be removed directly, completing the disassembly of the old consumables. After replacing the new rotating wheel and diamond wire, release the locking rods 133, and the internal springs will automatically spring back to their original position, pushing the locking rods 133 back into the slots. This allows for quick tool-free assembly and locking, greatly simplifying the equipment maintenance process.

[0040] The above description is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. A magnet slicing device for processing neodymium iron boron magnets, comprising a base (1), characterized in that, The base (1) is symmetrically provided with positioning frames (10), and a hanger (11) is installed between the two positioning frames (10). Three sets of triangularly arranged rotating shafts (12) are installed in the middle of the hanger (11) by a motor. Each set of rotating shafts (12) is provided with multiple equally spaced mounting cylinders (13). A disassembly part (14) is detachably installed between two adjacent mounting cylinders (13) through a disassembly part. A rotating wheel (15) is fitted and nested on the outside of the disassembly part (14). The rotating wheels (15) are arranged in a triangular pattern in the same plane. The base (1) is equipped with diamond wires (16) for cutting neodymium iron boron magnets. One side of one set of rotating shafts (12) is also provided with a control module for adjusting the spacing between multiple diamond wires (16) to meet the requirement of multiple different thicknesses of slices. The upper set of rotating shafts (12) is also provided with a control unit for adjusting the tightness of multiple diamond wires (16). The base (1) is provided with a placement unit for clamping and rotating neodymium iron boron magnets during slicing operations so that their exteriors are uniformly cut by diamond wires (16).

2. The magnet slicing device for processing neodymium iron boron magnets according to claim 1, characterized in that, The placement unit includes two symmetrical sleeve plates (3). A built-in plate (30) is slidably installed in the middle of the sleeve plate (3). A locking mechanism is provided between the built-in plate (30) and the sleeve plate (3) to allow the built-in plate (30) to slide upward only within the sleeve plate (3). When the locking mechanism is released, the built-in plate (30) can slide downward within the sleeve plate (3). A telescopic rod (31) is rotatably installed in the middle of the built-in plate (30). A gear (32) is fixedly installed on the outside of the telescopic rod (31). External cylinders (310) are fixedly installed at the telescopic ends of the two telescopic rods (31) on both sides. A triangular chuck is provided inside the external cylinder (310) to tighten the neodymium iron boron magnet.

3. A magnet slicing device for processing neodymium iron boron magnets according to claim 2, characterized in that, The placement unit also includes a side plate (33) fixed to one side of the built-in plate (30), a telescopic rod (34) is rotatably mounted on the side plate (33), a gear (35) is fixedly mounted on the telescopic end of the telescopic rod (34), and a lifting part is provided on one side of the gear (35) to control the built-in plate (30) to move upward in the sleeve plate (3) so that the neodymium iron boron magnet is cut to different depths by the diamond wire (16).

4. A magnet slicing device for processing neodymium iron boron magnets according to claim 3, characterized in that, The lifting unit includes a vertical plate (4) fixed to the base (1), and a rack (43) that meshes with the telescopic rod (35) is fixedly installed on one side of the vertical plate (4).

5. A magnet slicing device for processing neodymium iron boron magnets according to claim 1, characterized in that, The disassembly and assembly part includes a cross groove (131) opened on the mounting cylinder (13). A cross plate (132) symmetrically arranged is slidably installed in the cross groove (131). A spring located inside the mounting cylinder (13) is connected between the two cross plates (132). A locking rod (133) that passes through and slides on the side of the mounting cylinder (13) is fixedly installed on the side of the two cross plates (132) that are far apart. When the locking rod (133) engages with the locking groove on the side of the disassembly and assembly part (14), the disassembly and assembly part (14) is fixed.

6. A magnet slicing device for processing neodymium iron boron magnets according to claim 5, characterized in that, The control module includes a U-shaped frame (210) connected to the base (1). An electric push rod (211) is fixedly installed at the center of the lower end face of the U-shaped frame (210). A connecting plate (212) is fixedly installed at the telescopic end of the electric push rod (211). Multiple inverted V-shaped frames (213) are fixedly installed on the lower end face of the connecting plate (212).

7. A magnet slicing device for processing neodymium iron boron magnets according to claim 6, characterized in that, The control module also includes a long rod (20) fixedly connected to the U-shaped frame (210). Multiple external blocks (201) corresponding to the rotating wheel (15) are slidably installed on the long rod (20). A spring sleeved outside the long rod (20) is connected between two adjacent external blocks (201). A trapezoidal frame (202) is fixedly installed above the external blocks (201). A U-shaped frame (203) is fixedly installed on the side of the trapezoidal frame (202) facing the rotating wheel (15). Two symmetrically arranged pull rods (204) are slidably installed on the U-shaped frame (203).

8. A magnet slicing apparatus for processing neodymium iron boron magnets according to claim 7, characterized in that, The rotating wheel (15) has annular grooves (17) on both sides. Two pull rods (204) are fitted with arc blocks (205) on the side close to each other. The pull rods (204) are fitted with springs, and the springs are located between the arc blocks (205) and the brackets (203).

9. A magnet slicing device for processing neodymium iron boron magnets according to claim 1, characterized in that, The control unit includes guide plates (122) fixed on both sides of the middle of the hanger (11). A sliding groove is provided in the middle of the guide plate (122). A horizontal plate (123) is slidably installed between the sliding grooves on both sides. A cylinder (124) is installed between the upper end face of the horizontal plate (123) and the hanger (11). A hanging plate (121) fixed to the horizontal plate (123) is provided on the side of the two guide plates (122) that are close to each other. A set of rotating shafts (12) at the center is rotatably connected to the hanging plate (121).

10. A magnet slicing apparatus for processing neodymium iron boron magnets according to claim 2, characterized in that, The locking mechanism includes a gear frame (5) fixedly installed at the bottom of the built-in plate (30). A fixed seat (51) located in the inner cavity of the sleeve plate (3) is also provided on one side of the gear frame (5). A swing plate (52) is rotatably installed in the middle of the fixed seat (51). A locking tooth (53) that engages with the gear frame (5) is provided on one side of the swing plate (52). A spring is connected between the swing plate (52) and the fixed seat (51). An arc groove (54) communicating with the inner cavity of the sleeve plate (3) is provided on one side of the sleeve plate (3). A docking rod (58) fixed to the swing plate (52) is slidably installed in the arc groove (54). A control rod (55) is rotatably installed on the outside of the sleeve plate (3). A drive plate (56) is slidably installed on the control rod (55) along its axis. A docking hole (57) is opened on the drive plate (56).

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