Method for turning down a neodymium-iron-boron magnet

Abstract

The application discloses a method for turning over a neodymium iron boron magnet, which comprises the following steps: firstly, selecting a target delivery tray specification (type A or type B) according to a production instruction, and then supplying a corresponding carrier and preparing equipment; positioning an empty delivery tray and confirming the specification; positioning a turnover tray and sucking all the magnets once to turn over the magnets by 180 degrees; adjusting the magnet row spacing through a variable-distance carrying mechanism; then, different filling strategies are executed according to the target specification. When producing the delivery tray A, a set of "replenishment circulation process" is started, that is, the magnets of the first turnover tray are temporarily stored in a special delivery tray temporary transfer mechanism, the magnets of the subsequent turnover tray are used for directly filling the target tray, and when the target tray is about to be filled, the magnets are taken out from the temporary storage tray to fill the last vacancy. This method ingeniously solves the problem of automatic interruption caused by the mismatch of the number of magnets. Finally, the filled delivery tray is subjected to online polarity detection and automatic stacking and material collection.

Description

Technical Field

[0001] This invention relates to the field of magnetic material processing technology, and in particular to a method for turning neodymium iron boron magnets onto a disc. Background Technology

[0002] Neodymium iron boron (NdFeB) magnets, as high-performance permanent magnet materials, are widely used in electronic products, new energy vehicles, industrial motors, and other fields. In their production process, after sintering and surface treatment, the magnets are typically arranged neatly on standard turntables. Before final shipment, however, according to customer order requirements, the magnets need to be rearranged, flipped (to adjust the magnetic pole orientation), and transferred to dedicated shipping trays.

[0003] Currently, the industry commonly uses manual methods for the aforementioned tray-turning operation. Operators need to manually remove the magnets one by one from the turnover tray, flip them over, and then place them one by one according to the specific acupoint layout of the shipping tray. This method has obvious drawbacks such as low efficiency, high labor intensity, and poor placement accuracy and polarity consistency. In addition, when the magnet layout (number of rows, columns, and spacing) of the turnover tray and the target shipping tray does not perfectly match (for example, a standard turnover tray holds 30 magnets, while a certain specification shipping tray requires 33 magnets), manual operation can be adjusted through experience, but simple automated equipment cannot achieve continuous and complete filling, becoming a key bottleneck restricting automation upgrades. Summary of the Invention

[0004] The purpose of this invention is to provide a method for rewinding neodymium iron boron magnets, overcoming the shortcomings of low efficiency and poor accuracy in manual or semi-automatic rewinding in the prior art.

[0005] To achieve the above objectives, the solution of the present invention is: a method for turning neodymium iron boron magnets onto a turntable, applied to a turntable turning device, the device including a turnover tray positioning mechanism, a shipping tray positioning mechanism, a magnet flipping mechanism, a variable-pitch conveying mechanism, a transfer mechanism, and a control system; the method includes the following steps:

[0006] S1. Mode Selection and Carrier Supply: Determine the target pallet specification as pallet A or pallet B according to the production order; supply the turnover pallet containing the magnet to the turnover pallet loading station, and supply the corresponding empty pallet to the pallet loading station; if the target specification is pallet A, then place an additional empty pallet A into the transfer mechanism as a temporary storage pallet.

[0007] S2. Empty pallet positioning and confirmation: Position the empty pallet to the pallet positioning mechanism and perform visual identification to confirm its specifications;

[0008] S3. Magnet tray pickup and flipping: Position the turntable to the material picking station, and use the magnet flipping mechanism to pick up all the magnets on it at once and flip it 180 degrees.

[0009] S4. Variable Pitch Handling and Filling: The variable pitch handling mechanism adjusts the row spacing of the attracted magnets and executes a filling strategy related to the target shipping pallet size.

[0010] If the target is shipping tray B, the magnet that has been flipped and its pitch changed will be directly transported and filled into shipping tray B on the shipping tray positioning mechanism.

[0011] If the target is shipping tray A, the replenishment cycle process is executed: First, all the magnets after the first turnover tray is flipped over are moved to the temporary storage tray of the transfer mechanism after the spacing is adjusted by the variable pitch conveying mechanism; then, the magnets after the subsequent turnover trays are flipped over are directly filled into the target shipping tray A on the shipping tray positioning mechanism after the spacing is adjusted; when the target shipping tray A is filled to the last row of empty space, the variable pitch conveying mechanism is controlled to pick up the required number of magnets from the temporary storage tray to fill the empty space, thus completing the filling of a complete shipping tray A.

[0012] S5. Online inspection and post-processing: Polarity detection is performed on the shipping pallets filled with magnets, and qualified products are stacked and collected.

[0013] Furthermore, in step S1,

[0014] The magnets on the turntable are arranged in 10 rows × 3 columns;

[0015] The layout of the shipping pallet A is 11 rows × 3 columns;

[0016] The layout of the shipping pallet B is 10 rows × 2 columns;

[0017] The material replenishment cycle process described in step S4 specifically includes:

[0018] Store the 30 magnets from the first turntable in three columns into a temporary storage disk;

[0019] Fill the target shipping tray A with magnets in three columns, for a total of 30 magnets;

[0020] Take a row of 3 magnets from the temporary storage disk and fill the 11th row of the target shipping disk A.

[0021] Furthermore, after step S4 and before step S5, the following steps are also included: when the production delivery tray A is completed and all the magnets in the temporary storage tray are consumed by the replenishment, the variable pitch conveying mechanism stops filling the target delivery tray A on the delivery tray positioning mechanism, and instead replenishes the magnets in the empty temporary storage tray.

[0022] Furthermore, in step S4, adjusting the row spacing of the magnets being picked up by the variable-pitch conveying mechanism specifically involves the following: the variable-pitch conveying mechanism includes a first suction head module for picking up magnets in columns and a second suction head module for picking up magnets in rows. The first suction head module has multiple independently drivable suction heads. The control system drives each suction head to move synchronously according to the target shipping tray specifications, adjusting the magnet row spacing from the spacing of the turntable layout to the spacing of the shipping tray A or shipping tray B layout.

[0023] Furthermore, the magnet row spacing of the turnover tray is 12mm, the magnet row spacing of the shipping tray A is 14.5mm, and the magnet row spacing of the shipping tray B is 16mm; when the target is shipping tray A, the variable pitch handling mechanism adjusts the magnet row spacing from 12mm to 14.5mm; when the target is shipping tray B, the variable pitch handling mechanism adjusts the magnet row spacing from 12mm to 16mm.

[0024] Furthermore, in step S2, visual recognition is achieved through a photo detection mechanism; in step S5, polarity detection is achieved through a polarity detection mechanism, and unqualified shipping pallets are transferred to a dedicated shipping pallet polarity detection NG mechanism.

[0025] Furthermore, in step S5, if all magnets are of qualified polarity, the vacuum suction structure picks up a partition from the partition feeding mechanism, covers the surface of the shipping tray, and then uses the shipping tray stacking mechanism to lift the shipping tray with the partition and send it into the shipping tray stacking mechanism for automatic stacking.

[0026] Furthermore, the pallet stacking mechanism, pallet stacking top mechanism, partition loading mechanism, and pallet polarity detection NG mechanism all have two models, A and B, which are interchangeable to adapt to the production of pallets of different specifications.

[0027] After adopting the above solution, the beneficial effects of the present invention are as follows:

[0028] This invention enables fully automated flipping, pitch adjustment, detection, and stacking of neodymium iron boron magnets from the turnover tray to the delivery tray, replacing traditional inefficient manual operations and significantly improving production efficiency and product consistency. Utilizing the delivery tray temporary storage and transfer mechanism and the corresponding replenishment cycle control logic, the automated equipment can continuously and completely handle production tasks with different turnover tray and delivery tray layouts.

[0029] Precise flipping and spacing are achieved through servo control, and combined with visual recognition and online polarity detection, the product's extremely high placement accuracy and magnetic consistency are ensured.

[0030] With its replaceable hardware adapter structure and programmable control strategy, the same equipment can quickly adapt to the production of different sizes (Type A / Type B) of shipping pallets, responding to diverse order demands. Attached Figure Description

[0031] Figure 1 This is a top view of the neodymium iron boron magnet rewinding device of the present invention;

[0032] Figure 2 This is a perspective view (a) of the neodymium iron boron magnet turning device of the present invention;

[0033] Figure 3 This is a perspective view (II) of the neodymium iron boron magnet turning device of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the turnover tray, shipping tray A and shipping tray B of the present invention;

[0035] Figure 5 This invention relates to an empty pallet handling mechanism;

[0036] Figure 6 This is a schematic diagram of the turntable positioning mechanism of the present invention;

[0037] Figure 7 This is a schematic diagram of the transfer mechanism of the present invention;

[0038] Figure 8 This is a schematic diagram of the shipping tray positioning mechanism of the present invention;

[0039] Figure 9 This is a schematic diagram of the flipping mechanism of the present invention;

[0040] Figure 10 This is a schematic diagram of the variable-pitch conveying mechanism of the present invention;

[0041] Figure 11 This is a schematic diagram of the pallet stacking and top mechanism of the present invention;

[0042] Figure 12 This invention relates to a pallet stacking mechanism (two models).

[0043] Figure 13 This is a schematic diagram of the NG mechanism for detecting the polarity of the shipping tray in this invention.

[0044] Label Explanation:

[0045] 1. Turnover tray; 2. Shipping tray; 3. Temporary storage tray;

[0046] 4. Turntable feeding mechanism;

[0047] 5. Empty turntable placement mechanism;

[0048] 6. Turntable positioning mechanism; 61. Telescopic cylinder;

[0049] 7. Transfer mechanism; 71. Positioning structure;

[0050] 8. Empty pallet A loading mechanism; 9. Empty pallet B loading mechanism;

[0051] 10. Pallet positioning mechanism; 11. Pallet handling mechanism;

[0052] 12. NG mechanism for detecting the polarity of shipping pallets;

[0053] 13. Partition loading mechanism;

[0054] 14. Pallet stacking mechanism; 141. Storage platform; 142. Flexible snap-fit ​​structure;

[0055] 15. Flipping mechanism;

[0056] 16. Variable pitch conveying mechanism; 161. First suction head module; 162. Second suction head module;

[0057] 17. Turntable handling mechanism;

[0058] 18. Empty pallet handling mechanism; 181. Vacuum suction cup;

[0059] 19. Pallet stacking and lifting mechanism; 191. Horizontal guide rail; 192. Support base; 193. Lifting cylinder;

[0060] 20. Photographic testing mechanism; 21. Polarity testing mechanism; 22. Vacuum suction structure. Detailed Implementation

[0061] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0062] This invention provides a method for turning neodymium iron boron magnets onto a disk, such as... Figures 1 to 13 As shown, the neodymium iron boron magnet rewinding device used includes:

[0063] Turntable 1: Used to hold magnets to be processed from the previous process.

[0064] Shipping tray 2: Used to load finished magnets after unloading, including at least two specifications: shipping tray A and shipping tray B.

[0065] Turntable feeding mechanism 4: Used for storing and orderly supplying turntables 1 carrying magnets.

[0066] Empty shipping tray A feeding mechanism 8: Used for storing and supplying empty shipping trays A.

[0067] Empty shipping tray B feeding mechanism 9: Used for storing and supplying empty shipping trays B.

[0068] Empty turntable placement mechanism 5: Used to receive and temporarily store the turntable 1 whose magnets have been removed.

[0069] The turnover tray positioning mechanism 6 is used to fix the turnover tray 1 to be picked up. For example... Figure 6 As shown, the positioning method of the turnover tray positioning mechanism 6 is to use multiple telescopic cylinders 61 to clamp and position the turnover tray 1 in the horizontal or vertical direction.

[0070] The shipping pallet is temporarily stored at transit agency 7, such as... Figure 7 The system includes a linear module and a positioning structure 71 mounted on the linear module. The positioning structure 71 is used to place and fix the shipping tray A, and can slide along a predetermined path under the drive of the linear module to transport the shipping tray A to different workstations. This mechanism is used to temporarily store magnets from the turnover tray as a common replenishment source when producing the shipping tray A; the shipping tray A placed on this mechanism at this time is referred to as the temporary storage tray 3 in this method.

[0071] Shipping tray positioning mechanism 10, such as Figure 8 As shown, its structure is similar to that of the temporary storage and transfer mechanism 7 for shipping pallets, also including a linear module and a positioning structure for fixing the shipping pallets 2 to be loaded. The difference is that the positioning structure of the shipping pallet positioning mechanism 10 is designed to be replaceable, including two models, A and B, which are respectively adapted to shipping pallets A and B, and can be replaced according to production needs.

[0072] The aforementioned turntable positioning mechanism 6, shipping pallet positioning mechanism 10, and shipping pallet temporary storage and transfer mechanism 7 all use the same method for positioning the pallets, namely, telescopic cylinder 61.

[0073] Magnetic flipping mechanism 15, such as Figure 9 Positioned above the turntable positioning mechanism 6, it includes a cam divider or hollow rotating platform driven by a servo motor, and a suction nozzle array. It can pick up an entire turntable of magnets at once and drive the suction nozzle array to rotate 180 degrees, thus flipping the magnets over.

[0074] The variable-pitch conveying mechanism 16 is used to change the magnetic pitch and perform conveying and placement actions. The variable-pitch conveying mechanism 16 includes a first suction head module 161 for picking up magnets in rows and a second suction head module 162 for picking up magnets in sections. Figure 10 As shown, the first suction head module 161 consists of multiple independently driven linear slides, with a suction nozzle installed at the end of each slide. The control system can call preset parameters according to the selected shipping tray specification (type A or type B) and drive each slide to move synchronously, thereby precisely adjusting the row spacing of the suction nozzles from the spacing of the turnover tray (e.g., 12mm) to the spacing of the target shipping tray (e.g., 14.5mm or 16mm).

[0075] Turntable handling mechanism 17: used to move turntable 1 between turntable feeding mechanism 4, turntable positioning mechanism 6 and empty turntable placement mechanism 5.

[0076] Empty pallet handling mechanism 18: used to move empty pallets from empty pallet A loading mechanism 8 or empty pallet B loading mechanism 9 to pallet positioning mechanism 10.

[0077] Pallet handling mechanism 11: used to move the pallet 2 filled with magnets from the pallet positioning mechanism 10 to the subsequent inspection or stacking station.

[0078] The aforementioned handling mechanisms all employ vacuum suction cups in conjunction with linear modules or multi-axis robotic arms to grasp and transfer the carrier.

[0079] Photo inspection mechanism 20: usually a combination of industrial camera and light source, set above or to the side of the moving path of pallet positioning mechanism 10, used to collect images of pallets on pallet positioning mechanism 10 and confirm their model through visual recognition algorithm.

[0080] Polarity detection mechanism 21: uses a magnetic sensor array or scanning probe to perform non-contact detection on each magnet in the shipping pallet to determine whether its magnetic pole (N / S) direction meets the requirements.

[0081] Shipping tray polarity detection NG mechanism 12: used to temporarily store finished products in trays that fail the polarity test.

[0082] Partition feeding mechanism 13: A partition used for storing and supplying pallets when stacking.

[0083] Vacuum suction structure 22: Typically a suction cup assembly with a vacuum generator, used to perform auxiliary operations such as suction of partitions and handling of non-conforming products (NG trays).

[0084] Pallet stacking and lifting mechanism 19: Used to receive and lift pallets 2 to complete stacking. (Example) Figure 11 As shown, the pallet stacking and lifting mechanism 19 has a horizontal guide rail 191 and a support 192 that can slide along the horizontal guide rail. A lifting cylinder 193 is also connected below the support 192. Different models of pallets can be replaced on the support 192.

[0085] Pallet stacking mechanism 14 (e.g.) Figure 12 The system includes a storage platform 141, which has elastic buckle structures 142 around its perimeter to automatically engage when the shipping pallets 2 are lifted and stacked, thus enabling multi-pallet stacking.

[0086] The aforementioned pallet positioning mechanism 10, pallet polarity detection (NG) mechanism 12, partition loading mechanism 13, pallet stacking mechanism 14, and pallet stacking top mechanism 19 are available in two models, A and B, corresponding to pallet A and pallet B, respectively. The entire mechanism or the pallet positioning structure on the mechanism can be replaced according to the specifications of the pallets being produced to accommodate different pallets.

[0087] Due to the setup of the front-end production process, each turnover tray 1 carries 30 magnets. Shipping tray A can hold 33 magnets, and shipping tray B can hold 20 magnets. During production, the magnets need to be flipped from turnover tray 1 and transferred to shipping tray A or shipping tray B.

[0088] The magnets of turntable 1 are arranged in 10 rows x 3 columns, with a row spacing of P1 = 12 mm.

[0089] Two types of shipping trays 2:

[0090] The magnets on shipping tray A are arranged in 11 rows x 3 columns, with a row spacing of P2 = 14.5 mm.

[0091] The magnets on shipping tray B are arranged in 10 rows x 2 columns, with a row spacing of P3 = 16mm.

[0092] The method for turning over a neodymium iron boron magnet of the present invention includes the following steps (see reference). Figures 1 to 3 ):

[0093] Step 100: Initialization and Mode Selection.

[0094] Operators select the magnet model and target shipping pallet specification (A or B) for this production through the human-machine interface.

[0095] Step 200: Loading the vehicle.

[0096] Place the fully loaded pallet 1 into the pallet feeding mechanism 4. Depending on the selected mode, place the empty pallet A into the empty pallet A feeding mechanism 8, or the empty pallet B into the empty pallet B feeding mechanism 9. Confirm that the mechanisms directly related to the pallets in the equipment—pallet positioning mechanism 10, pallet polarity detection (NG) mechanism 12, partition feeding mechanism 13, pallet stacking mechanism 14, and pallet stacking and topping mechanism 19—are all configured to match the corresponding pallet models.

[0097] If the production mode is "production delivery pallet A", an additional empty delivery pallet A must be placed into the transfer mechanism 7 by manual labor or auxiliary equipment. This pallet is defined as temporary pallet 3 in this process.

[0098] Step 300: Locating and confirming the empty shipping pallet.

[0099] The empty pallet handling mechanism 18 picks up and places the empty pallet onto the pallet positioning mechanism 10. This mechanism moves to a position below the photo-detection mechanism 20 to perform visual photo recognition, ensuring that the actual pallet matches the production instructions and preventing misloading.

[0100] Step 400: Magnet processing cycle. This step is performed according to different production mode branches.

[0101] For the "Production Delivery Plot A" model (e.g.) Figures 1 to 3 (as shown)

[0102] 401A: The turnover tray transport mechanism 17 transports the first turnover tray 1 to the turnover tray positioning mechanism 6 and positions it.

[0103] 402A: The magnet flipping mechanism 15 descends, picks up all 30 magnets in the tray at once through its suction nozzle array, and then rises.

[0104] 403A: The turnover tray transport mechanism 17 moves the empty turnover tray 1 to the empty turnover tray placement mechanism 5.

[0105] 404A: The magnet flipping mechanism 15 performs a 180-degree rotation to flip the entire tray of magnets.

[0106] 405A (Temporary Storage Operation): The variable-pitch transport mechanism 16 moves above the flipping mechanism 15 and picks up all the magnets in three stages (each time picking up 10 magnets from one column). After picking up each column, its first suction head module 161 adjusts the row spacing from 12mm to 14.5mm according to preset parameters. Subsequently, the variable-pitch transport mechanism 16 transports the three columns of magnets with adjusted spacing sequentially and places them into the temporary storage tray 3 on the transfer mechanism 7. At this time, the magnets of the first turntable are completely and temporarily stored in the temporary storage tray 3 according to the target spacing.

[0107] 406A: The system begins processing the second turntable, repeating steps 401A-404A to complete the flipping.

[0108] 407A (Direct Filling Operation): The variable-pitch conveying mechanism 16 picks up and changes the pitch of the magnet from the second turntable magnet after it has been flipped over, but this time it directly transports and places the magnet into the target shipping tray A on the shipping tray positioning mechanism 10. After the three operations, 30 magnets are loaded into the target shipping tray A (occupying rows 1 to 10).

[0109] 408A (Replenishment Operation): At this point, only the 11th row (3 acupoints) of the target shipping tray A remains empty. The variable-pitch conveying mechanism 16 changes its suction head mode, moves above the temporary storage tray 3, and uses the second suction head module 162 to pick up an entire row (3 magnets) at once. Then, this row of magnets is placed into the empty position of the 11th row of the target shipping tray A. Thus, a complete shipping tray A containing 33 magnets is filled.

[0110] 409A: Scratch disk reset.

[0111] After one row (3 magnets) of magnets in temporary storage tray 3 is removed for replenishment, the 27 magnets in temporary storage tray 3 continue to participate in replenishing multiple subsequent target trays until they are all exhausted. The magnets in temporary storage tray 3 can meet the replenishment needs of ten target shipping trays A. After all the magnets in temporary storage tray 3 are exhausted, the variable pitch conveying mechanism 16 stops filling the target shipping tray A on the shipping tray positioning mechanism 10, and instead replenishes magnets into the empty temporary storage tray 3.

[0112] For the "Production and Delivery Disk B" model (such as...) Figures 1 to 3 (as shown)

[0113] 401B-404B: Similar to 401A-404A in mode A, it involves loading, positioning, picking up, and flipping the turntable.

[0114] 401B: The turnover tray transport mechanism 17 transports the first turnover tray 1 to the turnover tray positioning mechanism 6 and positions it.

[0115] 402B: The magnet flipping mechanism 15 descends, picks up all 30 magnets in the tray at once through its suction nozzle array, and then rises.

[0116] 403B: The turnover tray transport mechanism 17 moves the empty turnover tray 1 to the empty turnover tray placement mechanism 5.

[0117] 404B: The magnet flipping mechanism 15 performs a 180-degree rotation to flip the entire tray of magnets.

[0118] 405B (Direct Filling): The variable-pitch conveying mechanism 16 picks up magnets from the flipping mechanism 15 in two stages (each time picking up 10 magnets from one column). After each pickup, the row spacing is adjusted from 12mm to 16mm. Then, these two columns of magnets are directly conveyed and sequentially placed into the target shipping tray B on the shipping tray positioning mechanism 10. After two operations, a shipping tray B containing 20 magnets is filled. The remaining third column (10 magnets) of the first turntable can be temporarily left on the flipping mechanism 15 and combined with the first column of magnets of the next turntable for filling the next shipping tray B.

[0119] 406B: During the entire B-mode production process, the transfer mechanism 7 does not participate in the operation and remains idle or removed.

[0120] Step 500: Online detection and post-processing. This step applies to both Mode A and Mode B.

[0121] 501: The pallet handling mechanism 11 moves the pallet filled with magnets from the pallet positioning mechanism 10 to the station of the polarity detection mechanism 21.

[0122] 502: The polarity detection mechanism 21 scans each magnet in the disk to determine whether its N / S pole orientation is correct.

[0123] 503: If any magnet is found to be non-compliant (NG), the vacuum suction structure 22 will pick up the entire shipping tray and transfer it to the shipping tray polarity detection NG mechanism 12 for temporary storage.

[0124] 504: If all magnets are of acceptable polarity (OK), the vacuum suction structure 22 will pick up a partition from the partition feeding mechanism 13 and accurately cover the surface of the shipping tray.

[0125] 505: Qualified pallets with partitions are moved to the pallet stacking top mechanism 19, which lifts them and sends them into the pallet stacking mechanism 14 for automatic stacking.

[0126] 506: Once the preset number of trays has been stacked, they are removed by subsequent equipment or manually, completing the entire tray rewinding process.

[0127] Step 600: Loop through the conditional statements.

[0128] The system determines whether the production task is completed. If not, it returns to step 400 and continues the filling cycle for the next shipping pallet; if completed, the process ends.

[0129] The core of the method described in this invention lies in controlling the hardware combination (flipping mechanism, pitch mechanism, and transfer mechanism) through software logic (filling strategy) to dynamically adapt to different physical layout constraints, thereby solving the key technological problem of "quantity mismatch" in automated pallet reversing. The central control unit (PLC) stores two or more control program packages corresponding to shipping pallets A and B, including corresponding pitch parameters, transport paths, and most importantly—whether to enable and how to utilize the transfer mechanism 7's "replenishment logic." This enables a single hardware platform to handle complex, heterogeneous production tasks.

[0130] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, primarily used to illustrate the embodiments and to explain the operating principles of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0131] Furthermore, the directions such as front, back, left, and right mentioned in this embodiment are only for reference and do not represent the actual directions in use. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0132] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. All equivalent changes made based on the key design features of this case shall fall within the protection scope of this case.

Claims

1. A method for turning neodymium iron boron magnets onto a turntable, applied to a turntable turning device, characterized in that: The equipment includes a turntable positioning mechanism (6), a shipping tray positioning mechanism (10), a magnet flipping mechanism (15), a variable-pitch conveying mechanism (16), a transfer mechanism (7), and a control system; the method includes the following steps: S1. Mode selection and carrier supply: Determine the target pallet specification as pallet A or pallet B according to the production order; supply a turnover pallet (1) with magnets to the turnover pallet loading station, and supply an empty pallet of the corresponding specification to the pallet loading station; if the target specification is pallet A, then place an additional empty pallet A into the transfer mechanism (7) as a temporary storage pallet (3). S2. Empty pallet positioning and confirmation: Position the empty pallet to the pallet positioning mechanism (10) and perform visual identification to confirm its specifications; S3, Magnet tray picking and flipping: Position the turntable (1) to the picking station, and pick up all the magnets on it at once and flip it 180 degrees in one go through the magnet flipping mechanism (15); S4. Variable Pitch Handling and Filling: The row spacing of the attracted magnets is adjusted by the variable pitch handling mechanism (16), and a filling strategy related to the target pallet size is executed: If the target is shipping tray B, the magnet that has been flipped and its pitch changed will be directly transported and filled into shipping tray B on the shipping tray positioning mechanism (10); If the target is delivery tray A, the replenishment cycle process is executed: First, all the magnets after the first turnover tray (1) is flipped over are moved to the temporary storage tray (3) of the transfer mechanism (7) after the spacing is adjusted by the variable pitch conveying mechanism (16); then, the magnets after the subsequent turnover trays are flipped over are directly filled into the target delivery tray A on the delivery tray positioning mechanism (10) after the spacing is adjusted; when the target delivery tray A is filled to the last row of empty space, the variable pitch conveying mechanism (16) is controlled to pick up the required number of magnets from the temporary storage tray (3) to fill the empty space and complete the filling of a complete delivery tray A. S5. Online inspection and post-processing: Polarity detection is performed on the shipping pallets filled with magnets, and qualified products are stacked and collected.

2. The method for turning neodymium iron boron magnets onto a disk as described in claim 1, characterized in that: In step S1, The magnets of the turntable (1) are arranged in 10 rows × 3 columns; The layout of the shipping pallet A is 11 rows × 3 columns; The layout of the shipping pallet B is 10 rows × 2 columns; The material replenishment cycle process described in step S4 specifically includes: The 30 magnets of the first turntable are stored in three columns in the temporary storage disk (3); Fill the target shipping tray A with magnets in three columns, for a total of 30 magnets; Take a row of 3 magnets from the temporary storage disk (3) and fill the 11th row of the target shipping disk A.

3. The method for turning over a neodymium iron boron magnet as described in claim 1 or 2, characterized in that: After step S4 and before step S5, the following steps are also included: when the magnets in the production delivery tray A and the temporary storage tray (3) are completely consumed by the replenishment, the variable pitch conveying mechanism (16) stops filling the target delivery tray A on the delivery tray positioning mechanism (10) and instead replenishes the magnets in the empty temporary storage tray (3).

4. The method for turning neodymium iron boron magnets onto a disk as described in claim 1, characterized in that: In step S4, adjusting the row spacing of the magnets being picked up by the variable pitch conveying mechanism (16) specifically involves the following: the variable pitch conveying mechanism (16) includes a first suction head module (161) for picking up magnets in columns and a second suction head module (162) for picking up magnets in rows. The first suction head module (161) has multiple independently drivable suction heads. The control system drives each suction head to move synchronously according to the target shipping tray specifications, adjusting the spacing between magnet rows from the spacing of the turntable layout to the spacing of the shipping tray A or shipping tray B layout.

5. The method for turning neodymium iron boron magnets onto a disk as described in claim 4, characterized in that: The magnet row spacing of the turntable (1) is 12mm, the magnet row spacing of the shipping tray A is 14.5mm, and the magnet row spacing of the shipping tray B is 16mm; when the target is the shipping tray A, the variable pitch handling mechanism (16) adjusts the magnet row spacing from 12mm to 14.5mm; when the target is the shipping tray B, the variable pitch handling mechanism (16) adjusts the magnet row spacing from 12mm to 16mm.

6. The method for turning neodymium iron boron magnets onto a disk as described in claim 1, characterized in that: In step S2, visual recognition is achieved by the photo detection mechanism (20); in step S5, polarity detection is achieved by the polarity detection mechanism (21), and the unqualified shipping pallets are transferred to the special shipping pallet polarity detection NG mechanism (12).

7. The method for turning neodymium iron boron magnets onto a disk as described in claim 6, characterized in that: In step S5, if all magnets are of the correct polarity, the vacuum suction structure (22) picks up a partition from the partition feeding mechanism (13), covers the surface of the shipping tray, and then uses the shipping tray stacking mechanism (19) to lift the shipping tray with the partition and send it into the shipping tray stacking mechanism (14) for automatic stacking.

8. The method for turning over a neodymium iron boron magnet as described in claim 7, characterized in that: The pallet stacking mechanism (14), pallet stacking top mechanism (19), partition plate feeding mechanism (13) and pallet polarity detection NG mechanism (12) all have two models, A and B, which are interchangeable to adapt to the production of pallets of different specifications.

Images