An automated multi-station magnetizing apparatus

Abstract

The application provides an automatic multi-station magnetizing equipment, which comprises a rack, a feeding module, a visual positioning module, a magnetizing module and a discharging module. The feeding module comprises a vibrating disc and a material taking assembly, and the material taking assembly is provided with a plurality of movable and rotatable suction nozzles. The visual positioning module is used for detecting the position and angle of a product and rotating the suction nozzles to compensate. The magnetizing module comprises an upper die assembly and a lower die assembly. The lower die assembly comprises a fixed plate and a movable plate. The left end of the fixed plate is provided with a protrusion, and the right end of the movable plate is provided with a groove. The movable plate is moved towards the fixed plate, so that the protrusion is inserted into the groove to form a product positioning space. The discharging module is used for transferring the magnetized product to a tray. The feeding error is compensated by visual positioning and rotation of the suction nozzles. The precise positioning after fault-tolerant placement is realized by cooperation of the protrusion and the groove, manual single-piece magnetization is replaced, and the problems of low magnetizing efficiency, poor positioning precision and influence on magnetizing quality of small-size permanent magnet products are solved.

Description

Technical Field

[0001] This invention relates to the field of magnetization equipment technology, specifically to an automated multi-station magnetization device. Background Technology

[0002] Permanent magnet materials are widely used in new energy vehicles, consumer electronics, industrial motors, aerospace and other fields. Magnetization is the final key process in the production of permanent magnet materials, which directly determines the magnetic properties and consistency of the product. For the large-scale, high-precision, and multi-variety flexible magnetization production of permanent magnets such as neodymium iron boron and ferrite, existing magnetization equipment has many technical defects.

[0003] For newly developed neodymium iron boron permanent magnets, especially those with smaller dimensions (e.g., thickness and width similar, dimensions below 2.5mm) and high magnetization accuracy requirements, traditional automated magnetization equipment struggles to simultaneously meet both accuracy and performance requirements. These small-sized products are extremely sensitive to positional accuracy during magnetization. Existing automated feeding mechanisms cannot guarantee consistent feeding positions each time, leading to defects such as mold compression and magnetic misalignment during mold closing and magnetization. Therefore, in actual production, manual single-piece magnetization is often the only option. Manual single-piece magnetization is not only extremely inefficient and unsuitable for mass production, but also incurs high labor costs, and operators are prone to fatigue-induced errors due to prolonged repetitive work.

[0004] Regarding product positioning and clamping, existing magnetization equipment uses relatively simple fixture designs, typically employing fixed positioning slots or relying on manual placement. Positional deviations are prone to occur during the loading process, and during mold closing, the impact force can cause slight movements of the fixture or product, resulting in deviations in the magnetization angle and uneven magnetic field strength. This problem is particularly pronounced in the magnetization production of small-sized products, as these products have extremely low tolerance for positioning errors; even slight deviations can lead to the scrapping of the entire batch. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide an automated multi-station magnetization device to solve the technical problems in existing technologies, such as poor consistency of automatic feeding positions when magnetizing small-sized products, which leads to low efficiency due to manual single-piece magnetization, and insufficient positioning accuracy of the fixture causing product displacement during mold closing, thus affecting the magnetization quality.

[0006] To solve the above-mentioned technical problems, the present invention provides an automated multi-station magnetization device, comprising: frame; The feeding module is mounted on the frame and includes a vibratory feeder and a material handling assembly. The material handling assembly includes several suction nozzles that are distributed along the front-back direction and can move in the horizontal and vertical directions and rotate around the vertical axis. The visual positioning module is used to detect the position and angle of the product; The magnetization module is mounted on the frame and includes an upper mold assembly and a lower mold assembly. The upper mold assembly moves in the vertical direction and closes with the lower mold assembly to magnetize the product. The lower mold assembly includes a first drive assembly, a lower mold, a movable plate, and a fixed plate. The fixed plate is fixed to the upper surface of the lower mold and has several protrusions distributed in the front-back direction on its left end. The movable plate is mounted on the upper surface of the lower mold and has several grooves on its right end that correspond one-to-one with the several protrusions. The first drive assembly drives the movable plate to move closer to or further away from the fixed plate and causes the several protrusions to be inserted into the several grooves to form the positioning space of the product. The unloading module is mounted on the frame and includes several trays and unloading components that can move horizontally and vertically. The picking assembly is used to transfer products from the vibratory feeder to the lower mold and place them in the respective grooves, while the unloading assembly is used to transfer the magnetized products from the lower mold to the tray.

[0007] With the above structure, the automated multi-station magnetization device of the present invention has the following advantages: Several suction nozzles in the material handling assembly are distributed along the front-to-back direction and can move horizontally and vertically, as well as rotate around the vertical axis. Combined with feedback from the vision positioning module, when the suction nozzles pick up small-sized products from the vibratory feeder, the vision positioning module detects the actual position and angular deviation of the product in real time. The suction nozzles rotate around the vertical axis to precisely adjust the product to the preset correct posture, thereby compensating for positional errors during the feeding process and ensuring that the product's orientation is consistent each time it is placed, fundamentally avoiding magnetization misalignment caused by angular deviation. Furthermore, in the lower mold assembly of the magnetization module, before feeding, the first drive assembly drives the movable plate away from the fixed plate, creating a larger gap between the protrusion and the groove. During the gap, the suction nozzle does not require extremely high alignment precision when placing the product into the groove area, allowing for a certain placement deviation. Subsequently, the first drive component drives the movable plate to move closer to the fixed plate, causing the protrusion to gradually insert into the groove. In this process, the protrusion and the groove together form a precise positioning space, clamping and fixing each product independently and stably. Even if impact force is applied during mold closing, the product is not prone to any slight movement because the positioning space is locked by the mechanical cooperation between the protrusion and the groove. This completely solves the problems of magnetization angle deviation and uneven magnetic field strength. At the same time, the multi-station design with several suction nozzles corresponding to several grooves enables the simultaneous picking and placing of multiple products. Combined with continuous feeding from the vibratory feeder, it completely replaces the inefficient operation of manual single-piece magnetization, significantly improving production efficiency and product yield.

[0008] As an improvement, the front face of each protrusion and the inner wall of the front side of each groove are arranged in the left-right direction, while the left end face of the fixed plate and the inner wall of the left side of each groove are arranged in the front-back direction. The left end face of the fixed plate, the front face of each protrusion, the inner wall of the front side of each groove, and the inner wall of the left side of each groove are respectively used to abut against the four sides of a product. The direction in which the first drive assembly drives the movable plate to move is inclined relative to the inner wall of the front side of the groove. With this structure, for the magnetization positioning requirements of rectangular products, the front face of each protrusion and the inner wall of the front side of each groove are arranged in the left-right direction, while the left end face of the fixed plate and the inner wall of the left side of each groove are arranged in the front-back direction, each forming a flat reference surface. When the movable plate moves closer to the fixed plate, the reference surface of the groove abuts against the side of the product first. After the movable plate is in position, the four reference surfaces abut against the four sides of the product respectively, so that the magnetization position and angle of the product are constant, and a stable clamping force can be generated on the product during the magnetization process, further improving the magnetization quality.

[0009] As an improvement, the magnetization module also includes a base plate mounted on the frame. The first drive assembly includes a first drive motor, a first lead screw module, and a first connecting plate. The first drive motor is mounted on the base plate, and the first connecting plate is slidably mounted on the base plate and connected to the movable plate. The first drive motor drives the first connecting plate to slide through the first lead screw module. With this structure, high-precision linear motion control is achieved through lead screw transmission, which can accurately control the moving distance and clamping force of the movable plate, avoiding damage to small-sized products due to excessive clamping force or loosening of positioning due to excessive clamping force.

[0010] As an improvement, the lower mold assembly also includes an adjustment plate connected to the base plate. The adjustment plate has several elongated holes extending in the front-back direction. Fixing bolts pass through the elongated holes and are threaded to the base plate. The first drive motor and the first connecting plate are both connected to the adjustment plate. With this structure, the front-back position of the movable plate can be adjusted as a whole by moving the adjustment plate back and forth within the range of the elongated holes. This ensures that after the movable plate is in place, the four reference surfaces are exactly aligned with the four sides of the product, further improving the magnetization positioning accuracy and magnetization quality of the product.

[0011] As an improvement, the magnetization module also includes a base plate and a second drive assembly. The base plate is slidably connected to the frame in the left-right direction, and the lower mold assembly is connected to the base plate. The second drive assembly drives the base plate to slide in the left-right direction. The loading module and unloading module are located in front of the magnetization module, and the unloading module is located to the left of the loading module. With this structure, the magnetization module can switch between the loading station and the unloading station, realizing the spatial separation of loading and unloading operations, avoiding interference between the loading assembly and the unloading assembly, and improving the working efficiency and safety of the equipment.

[0012] As an improvement, the feeding module also includes a third drive assembly, a fourth drive assembly, a second connecting plate, and two uprights. The two uprights are spaced apart on the frame. The two ends of the second connecting plate are slidably connected to the two uprights in the front-back direction. The third drive assembly is connected to one of the uprights and drives the second connecting plate to slide in the front-back direction. The picking assembly also includes a mounting frame, with several suction nozzles connected to the mounting frame. The fourth drive assembly is connected to the second connecting plate and drives the mounting frame to slide in the left-right direction. With this structure, the suction nozzles can move in the front-back and left-right directions, flexibly adapting to the positions of the vibratory feeder and the grooves on the lower mold, ensuring the accuracy and reliability of synchronous picking and unloading at multiple stations.

[0013] As an improvement, the material handling assembly also includes several return springs, several movable blocks, several second drive motors, several third drive motors, several first synchronous belt modules, and several second synchronous belt modules. The movable blocks are distributed along the front-to-back direction and are all slidably connected to the mounting frame. The several second drive motors are all connected to the mounting frame and are all connected to a first synchronous belt module. The synchronous belt of each first synchronous belt module is connected to a movable block and drives the movable block to move up and down. The several return springs are arranged vertically, with their upper and lower ends respectively connected to the mounting frame and a movable block. Each suction nozzle is rotatably connected to a movable block through a bearing. The several third drive motors are all connected to the mounting frame and drive the suction nozzle to rotate through a second synchronous belt module. With this structure, the vertical movement and rotation of the suction nozzle are realized, which, together with the vision positioning module, accurately picks up the product and adjusts the product angle.

[0014] As an improvement, the unloading module also includes a fifth drive assembly, a sixth drive assembly, a seventh drive assembly, a third connecting plate, and two uprights. The two uprights are spaced apart on the frame. The two ends of the third connecting plate are slidably connected to the two uprights in the front-back direction. The fifth drive assembly is connected to one of the uprights and drives the third connecting plate to slide in the front-back direction. The sixth drive assembly is connected to the third connecting plate and drives the seventh drive assembly to move in the left-right direction. The unloading assembly also includes a fourth connecting plate, an eighth drive assembly, a fifth connecting plate, several suction cups, a ninth drive assembly, a sixth connecting plate, a seventh connecting plate, several sleeves, and several magnetic needles. The seventh drive assembly drives the fourth connecting plate to move up and down. The eighth drive assembly is connected to the fourth connecting plate and drives the fifth connecting plate to move up and down. Several suction cups are connected to the fifth connecting plate and are externally connected to a negative pressure device to pick up the tray. The ninth drive assembly... The component is connected to the fourth connecting plate and drives the sixth connecting plate to move up and down. The seventh connecting plate is connected to the fourth connecting plate and located below the sixth connecting plate. Several sleeves are distributed along the front-back direction on the seventh connecting plate, and several magnetic needles are distributed along the front-back direction on the sixth connecting plate. Several magnetic needles pass through several sleeves, and under the drive of the ninth driving component, the bottom of the magnetic needles is exposed below the sleeves. With this structure, through the coordinated control of multiple sets of driving components, the feeding component can achieve multi-degree-of-freedom movement in the front-back, left-right, and up-down directions. The suction cup is connected to the fifth connecting plate and is driven up and down by the eighth driving component to pick up the tray and realize the automatic handling of the tray. The magnetic needles pass through the sleeves and are driven by the ninth driving component to be exposed below the sleeves to pick up the magnetized products. The sleeves play a guiding and protective role, and can also realize the separation of the magnetic needles from the magnetized products.

[0015] As an improvement, the upper mold assembly includes an upper mold, a tenth drive assembly, an eighth connecting plate, a ninth connecting plate, and several guide pillars. The eighth connecting plate is connected to the frame via several guide pillars, and the ninth connecting plate is slidably connected to several guide pillars. The tenth drive assembly is connected to the eighth connecting plate and drives the ninth connecting plate to slide up and down. The upper mold is connected to the lower end face of the ninth connecting plate. With this structure, the guide pillar structure ensures the straightness and repeatability of the upper mold's up and down movement, ensuring the parallelism and alignment accuracy between the upper and lower molds during mold closing, and avoiding product damage or uneven magnetization due to mold closing deviations.

[0016] As an improvement, the visual positioning module includes two feeding cameras located above the feeding module and the magnetization module, and a discharging camera located above the magnetization module. With this structure, the feeding cameras are used to photograph the product position and angle after the picking component picks up the product, and feed the information back to the feeding module to drive the suction nozzle to rotate for angle compensation. The discharging camera is used to photograph the product status after magnetization to determine whether the picking is normal. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the feeding module, magnetization module, and unloading module in this invention.

[0019] Figure 3 This is a schematic diagram of the upper mold assembly in this invention.

[0020] Figure 4 This is a schematic diagram of the lower mold assembly in this invention.

[0021] Figure 5 This is a schematic diagram of the structure of the movable plate and the fixed plate in this invention.

[0022] Figure 6 for Figure 5 A magnified view of part A in the middle.

[0023] Figure 7 This is a schematic diagram of the feeding module in this invention.

[0024] Figure 8 This is a schematic diagram of the material handling component in this invention.

[0025] Figure 9 This is a schematic diagram of the feeding module in this invention.

[0026] Figure 10 This is a schematic diagram of the feeding assembly in this invention.

[0027] Reference numerals: 100, frame; 200, feeding module; 300, vision positioning module; 400, magnetization module; 500, unloading module; 1, vibratory feeder; 2, suction nozzle; 3, lower mold; 4, movable plate; 5, fixed plate; 6, protrusion; 7, groove; 8, ring light source; 9, base plate; 10, first drive motor; 11, first lead screw module; 12, first connecting plate; 13, adjusting plate; 14, elongated hole; 15, second drive assembly; 16, third drive assembly; 17, fourth drive assembly; 18, second connecting plate; 19, upright frame; 20, mounting bracket; 21, return spring; 22, movable block; 2 3. Second drive motor; 24. Third drive motor; 25. First synchronous belt module; 26. Second synchronous belt module; 27. Fifth drive assembly; 28. Sixth drive assembly; 29. ​​Seventh drive assembly; 30. Third connecting plate; 31. Fourth connecting plate; 32. Eighth drive assembly; 33. Fifth connecting plate; 34. Suction cup; 35. Ninth drive assembly; 36. Sixth connecting plate; 37. Seventh connecting plate; 38. Sleeve; 39. Magnetic needle; 40. Upper mold; 41. Tenth drive assembly; 42. Eighth connecting plate; 43. Ninth connecting plate; 44. Guide post; 45. Loading camera; 46. Unloading camera. Detailed Implementation

[0028] The following is a detailed description of an automated multi-station magnetization device according to the present invention, with reference to the accompanying drawings.

[0029] like Figures 1 to 10 As shown, an automated multi-station magnetization device includes a frame 100, a feeding module 200, a vision positioning module 300, a magnetization module 400, and a discharging module 500. The feeding module 200, the magnetization module 400, and the discharging module 500 are all mounted on the frame 100. The vision positioning module 300 is used to realize real-time detection and feedback of the product position and angle.

[0030] The feeding module 200 includes a vibratory feeder 1 and a material handling assembly. In this embodiment, there are two vibratory feeders 1, both of which are flexible. The flexible vibratory feeder's surface is made of silicone or a soft material, which prevents damage to the product surface during vibration conveying and effectively reduces operating noise. Furthermore, it employs multi-dimensional micro-vibration technology, allowing programmable control of the vibration frequency and amplitude, enabling the product to move slowly on the feeder surface and automatically adjust its orientation, preventing jamming. It also eliminates the need to change tracks; simply adjusting the vibration parameters via software allows it to adapt to different product specifications, reducing changeover time to 3 to 15 minutes. The purpose of having two flexible vibratory feeders is twofold: when producing a certain product, one vibratory feeder 1 operates while the other stops and prepares for changeover in advance; when switching to another product (e.g., small-batch sample production), the vibratory feeder 1 and its corresponding material handling formula can be quickly switched, facilitating flexible switching between different products and reducing downtime.

[0031] The material handling assembly includes several suction nozzles 2 distributed along the front-to-back direction. In this embodiment, there are eight suction nozzles 2 to achieve simultaneous material handling at eight stations, significantly improving production efficiency. Each suction nozzle 2 can move horizontally (front-to-back, left-to-right) and vertically, and can rotate around the vertical axis. Each suction nozzle 2 is equipped with an independent vacuum generator and pressure sensor, enabling independent control and material shortage detection for each individual nozzle 2. Specifically, as... Figure 7As shown, the feeding module 200 also includes a third drive assembly 16, a fourth drive assembly 17, a second connecting plate 18, and two uprights 19. The two uprights 19 are spaced apart on the frame 100. The two ends of the second connecting plate 18 are slidably connected to the two uprights 19 in the front-back direction. The third drive assembly 16 is connected to one of the uprights 19 and is used to drive the second connecting plate 18 to slide in the front-back direction. The picking assembly also includes a mounting frame 20, and several suction nozzles 2 are connected to the mounting frame 20. The fourth drive assembly 17 is connected to the second connecting plate 18 and is used to drive the mounting frame 20 to slide in the left-right direction. In this way, the suction nozzles 2 can move a wide range in the front-back and left-right directions, flexibly adapting to the outlet position of the flexible vibratory feeder and the position of each groove 7 in the subsequent magnetization module 400. In this embodiment, the two ends of the second connecting plate 18 are slidably connected to the uprights 19 via guide rails and sliders. Both the third drive assembly 16 and the fourth drive assembly 17 can adopt existing structures such as servo motors with lead screws or linear modules.

[0032] like Figure 8 As shown, the material handling assembly also includes several return springs 21, several movable blocks 22, several second drive motors 23, several third drive motors 24, several first synchronous belt modules 25, and several second synchronous belt modules 26. The movable blocks 22 are distributed along the front-to-back direction, and each movable block 22 is slidably connected to the mounting frame 20 along the vertical direction. Specifically, the sliding connection with the mounting frame 20 is achieved through a slider and a guide rail. Each second drive motor 23 is connected to the mounting frame 20 and is connected to a first synchronous belt module 25. The synchronous belt of each first synchronous belt module 25 is connected to a movable block 22 to drive the movable block 22 to move up and down. Specifically, each movable block 22 has a through slot, the synchronous belt passes through the through slot, and a limiting piece is inserted in the through slot to achieve a stable connection between the synchronous belt and the movable block 22. Each return spring 21 is arranged vertically, with its upper and lower ends connected to the mounting frame 20 and a movable block 22, respectively. The second drive motor 23 drives the movable block 22 to descend, and the return spring 21 drives the movable block 22 to rise and reset.

[0033] Continue to refer to Figure 8Each suction nozzle 2 is rotatably connected to a movable block 22 via a bearing, allowing it to rotate freely. The bearing, nozzle 2, and movable block 22 are all interference-fitted. This interference fit ensures that the movable block 22 can stably drive the suction nozzle 2 to move up and down without affecting the rotation of the suction nozzle 2 relative to the movable block 22. Each third drive motor 24 is connected to the mounting bracket 20 and drives the corresponding suction nozzle 2 to rotate via a second synchronous belt module 26. Specifically, a synchronous pulley is coaxially mounted on the suction nozzle 2. When the third drive motor 24 starts, it drives the suction nozzle 2 to rotate via the second synchronous belt module 26. The suction nozzle 2 and the synchronous pulley can be fitted with a spline clearance. While the synchronous pulley drives the suction nozzle 2 to rotate synchronously, the suction nozzle 2 can slide up and down relative to the synchronous pulley.

[0034] like Figure 3 and Figure 4 As shown, the magnetization module 400 includes an upper mold assembly and a lower mold assembly. The upper mold assembly moves vertically and, after closing with the lower mold assembly, magnetizes the product. Figure 3 As shown, the upper mold assembly includes an upper mold 40, a tenth drive assembly 41, an eighth connecting plate 42, a ninth connecting plate 43, and several guide pillars 44. The eighth connecting plate 42 is fixedly connected to the frame 100 via the guide pillars 44, and the ninth connecting plate 43 is slidably connected to the guide pillars 44. The tenth drive assembly 41 is connected to the eighth connecting plate 42. In this embodiment, the tenth drive assembly 41 is an electric cylinder, and its drive rod is connected to the ninth connecting plate 43 to drive the ninth connecting plate 43 to slide up and down along the guide pillars 44. The upper mold 40 is fixedly connected to the lower end face of the ninth connecting plate 43. The guide pillar 44 structure ensures the straightness and repeatability of the upper mold 40's up and down movement, ensuring the parallelism and alignment accuracy between the upper mold 40 and the lower mold 3 during mold closing, and avoiding product damage or uneven magnetization due to mold closing deviation.

[0035] like Figure 4 As shown, the lower mold assembly includes a first driving component, a lower mold 3, a movable plate 4, and a fixed plate 5. The fixed plate 5 is fixedly disposed on the upper surface of the lower mold 3, and its left end has several protrusions 6 distributed along the front-back direction. In this embodiment, there are eight protrusions 6, each corresponding to a suction nozzle 2. The movable plate 4 is disposed on the upper surface of the lower mold 3 and located to the left of the fixed plate 5. The right end of the movable plate 4 has several grooves 7 corresponding to the protrusions 6. The first driving component is used to drive the movable plate 4 to move closer to or further away from the fixed plate 5, so that the protrusions 6 are inserted into the corresponding grooves 7, thereby forming the positioning space of the product. It should be noted that the movable plate 4 moving closer to or further away from the fixed plate 5 means that the distance between the movable plate 4 and the fixed plate 5 varies, at least in the left-right direction.

[0036] like Figure 4As shown, the magnetization module 400 also includes a base plate 9, which is mounted on the frame 100. The first drive assembly includes a first drive motor 10, a first lead screw module 11, and a first connecting plate 12. The first drive motor 10 is mounted on the base plate 9, and the first connecting plate 12 is slidably mounted on the base plate 9 and fixedly connected to the movable plate 4. The first drive motor 10 drives the first connecting plate 12 to slide through the first lead screw module 11, thereby moving the movable plate 4.

[0037] To facilitate quick replacement of the fixed plate 5 and the movable plate 4 for products of different shapes and sizes, the fixed plate 5 is detachably connected to the lower mold 3 by a pin, and the movable plate 4 is detachably connected to the first connecting plate 12 by a pin.

[0038] like Figure 5 and Figure 6 As shown, the front face of each protrusion 6 and the inner wall of the front side of each groove 7 are arranged in the left-right direction, and the left end face of the fixing plate 5 and the inner wall of the left side of each groove 7 are arranged in the front-back direction, forming a flat reference surface. The left end face of the fixing plate 5, the front face of the protrusion 6, the inner wall of the front side of the groove 7, and the inner wall of the left side of the groove 7 are respectively used to abut against the four sides of a product. The direction in which the first driving component drives the movable plate 4 to move is inclined relative to the inner wall of the front side of the groove 7. When the movable plate 4 moves away from the fixing plate 5, the space between the groove 7 and the protrusion 6 is larger, and there is more space for the nozzle 2 to place the product. For the magnetization positioning requirements of rectangular products, when the movable plate 4 moves towards the fixing plate 5, the reference surface of the groove 7 abuts against the side of the product first. After the movable plate 4 is in place, the four reference surfaces can abut against the four sides of the product respectively, so that the magnetization position and angle of the product are constant, and a stable clamping force can be generated on the product during the magnetization process, further improving the magnetization quality.

[0039] Furthermore, the rear end face of each protrusion 6 and the rear inner wall of each groove 7 are inclined backward from left to right, and the first drive assembly drives the movable plate 4 to move in a direction parallel to the rear end face of the protrusion 6 (i.e., the inclined direction).

[0040] like Figure 4 As shown, the lower mold assembly also includes an adjusting plate 13 connected to the base plate 9. The adjusting plate 13 has several elongated holes 14 extending in the front-rear direction. Fixing bolts pass through the elongated holes 14 and are threadedly connected to the base plate 9. The first drive motor 10 and the first connecting plate 12 are both mounted on the adjusting plate 13. By loosening the fixing bolts, the adjusting plate 13 can be moved in the front-rear direction, thereby adjusting the front-rear position of the movable plate 4 as a whole. This ensures that after the movable plate 4 is in position, the four reference surfaces are exactly aligned with the four sides of the product, further improving the magnetization positioning accuracy and magnetization quality of the product.

[0041] In addition, such as Figure 4As shown, the magnetization module 400 also includes a second drive assembly 15. The base plate 9 is slidably connected to the frame 100 in the left-right direction, and the lower mold assembly is integrally connected to the base plate 9. The second drive assembly 15 drives the base plate 9 to slide in the left-right direction. Similarly, the base plate 9 is slidably connected to the frame 100 via a slider guide rail. The second drive assembly 15 can be a servo motor with a lead screw or a linear module. In this embodiment, the loading module 200 and the unloading module 500 are both located in front of the magnetization module 400, and the unloading module 500 is located to the left of the loading module 200. During loading, the second drive assembly 15 drives the base plate 9 to move to the right, and the picking assembly transfers the product from the vibratory feeder 1 to the lower mold 3 and places it in each groove 7. Then, the second drive assembly 15 drives the base plate 9 to the lower mold assembly for mold closing and magnetization. After magnetization is completed, the second drive assembly 15 drives the base plate 9 to move to the left, and the unloading module 500 unloads the product.

[0042] like Figure 1 As shown, the visual positioning module 300 includes two loading cameras 45 respectively positioned above the loading module 200 and the magnetizing module 400, and a unloading camera 46 positioned above the magnetizing module 400. Specifically, one of the two loading cameras 45 is located above the vibratory feeder 1, and the other is located above the right extreme position of the base plate 9, where a ring light source 8 is also provided for supplementary lighting. The loading camera 45 takes pictures of the products picked up by the eight suction nozzles 2 of the picking component, obtains the actual position and angle data of the products, and sends the data to the control system. The control system calculates the rotation angle that needs to be compensated based on the deviation, drives the corresponding third drive motor 24 to rotate the suction nozzle 2, and precisely adjusts the product to the preset correct posture. This process completely replaces manual adjustment, ensuring that the product orientation is consistent each time it is placed, and fundamentally avoiding magnetizing misalignment caused by angle deviation. After the angle correction is completed, the suction nozzle 2 transfers the product to the lower mold assembly of the magnetizing module 400.

[0043] The unloading camera 46 is located above the left extreme position of the base plate 9. Its function is to take pictures after the second drive component moves the magnetized lower mold assembly to the left. After magnetization, the product may stick to the upper mold 40, or the product may be moved away from its original positioning position during demolding, resulting in the product not being within the positioning space between the fixed plate 5 and the movable plate 4. At this time, the unloading camera 46 is used to take pictures to confirm whether the unloading is normal after the unloading mechanism picks up the product and the product passes under the unloading camera 46. That is, to check whether the product has been successfully picked up and whether the posture is correct, to prevent the product from being missed on the lower mold 3 or the unloading failure from causing subsequent problems.

[0044] The unloading module 500 includes several trays and an unloading assembly capable of moving horizontally and vertically. The trays are used to store the magnetized products, and the unloading assembly is used to transfer the magnetized products from the lower mold 3 onto the trays. Figure 9 As shown, the unloading module 500 also includes a fifth drive assembly 27, a sixth drive assembly 28, a seventh drive assembly 29, a third connecting plate 30, and two uprights 19. The two uprights 19 are spaced apart from each other on the left and right. The right upright 19 of the two uprights 19 in the unloading module 500 is the same as the left upright 19 of the two uprights 19 in the loading module 200. That is, a total of three uprights 19 are spaced apart from left to right on the frame 100. The two ends of the third connecting plate 30 are slidably connected to the two uprights 19 of the unloading module 500 in the front-back direction. The fifth drive assembly 27 is connected to one of the uprights 19 and is used to drive the third connecting plate 30 to slide in the front-back direction. The sixth drive assembly 28 is connected to the third connecting plate 30 and is used to drive the seventh drive assembly 29 to move in the left-right direction. Similarly, the third connecting plate 30 can be slidably connected to the upright 19 through a slider guide rail. Both the fifth drive assembly 27 and the sixth drive assembly 28 can be servo motors with lead screws or linear modules.

[0045] like Figure 9 and Figure 10 As shown, the unloading assembly also includes a fourth connecting plate 31, an eighth driving assembly 32, a fifth connecting plate 33, several suction cups 34, a ninth driving assembly 35, a sixth connecting plate 36, a seventh connecting plate 37, several sleeves 38, and several magnetic needles 39. The seventh driving assembly 39 drives the fourth connecting plate 31 to move up and down. The eighth driving assembly 32 is connected to the fourth connecting plate 31 and is used to drive the fifth connecting plate 33 to move up and down. Several suction cups 34 are connected to the fifth connecting plate 33 and are externally connected to a negative pressure device (such as a vacuum generator) for picking up the tray. In this embodiment, there are four suction cups 34, which are distributed at the four corners on the fifth connecting plate 33.

[0046] The ninth drive assembly 35 is connected to the fourth connecting plate 31 and is used to drive the sixth connecting plate 36 to move up and down. The seventh connecting plate 37 is fixedly connected to the fourth connecting plate 31 and is located below the sixth connecting plate 36. Several sleeves 38 are distributed along the front-back direction on the seventh connecting plate 37, and several magnetic needles 39 are distributed along the front-back direction on the sixth connecting plate 36, corresponding one-to-one with the grooves 7 on the movable plate 4, and the magnetic needles 39 pass through the corresponding sleeves 38. Driven by the ninth drive assembly 35, the sixth connecting plate 36 drives the magnetic needles 39 to move downward, so that the bottom end of the magnetic needle 39 protrudes below the sleeve 38, thereby using magnetic attraction to pick up the magnetized product; when it is necessary to release the product, the magnetic needles 39 retract upward into the sleeves 38, and due to the obstruction of the sleeves 38, the product separates from the magnetic needles 39. The eighth drive assembly 32 is located on the left end face of the fourth connecting plate 31, and the ninth drive assembly 35 is located on the right end face of the fourth connecting plate 31. The seventh drive assembly 29, the eighth drive assembly 32, and the ninth drive assembly 35 can all be electric cylinders.

[0047] This invention employs an eight-station synchronous suction nozzle 2 combined with a vision positioning module 300 for angle correction, completely replacing manual single-piece magnetization and solving the problem of poor consistency in the loading position of small-sized products. The positioning structure, featuring a protrusion 6 and a groove 7 working together with an obliquely moving movable plate 4, achieves automatic and precise positioning after faulty placement, ensuring no product offset during mold closing and guaranteeing magnetization quality. The detachable pin connection between the fixed plate 5 and the movable plate 4, along with the adjustment structure of the elongated hole 14 on the adjusting plate 13, allows the equipment to quickly adapt to products of different specifications. The rational arrangement of the loading camera 45 and the unloading camera 46 forms a closed-loop vision control throughout the entire process, effectively preventing product adhesion, omission, and material handling failure.

[0048] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above-described embodiment. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. An automated multi-station magnetizing apparatus, characterized by, include: frame; The feeding module is located on the frame and includes a vibratory feeder and a material picking component. The material picking component includes several suction nozzles distributed along the front-back direction and capable of moving in the horizontal and vertical directions and rotating with the vertical direction as the axis. The visual positioning module is used to detect the position and angle of the product; A magnetization module is mounted on the frame and includes an upper mold assembly and a lower mold assembly. The upper mold assembly moves in the vertical direction and closes with the lower mold assembly to magnetize the product. The lower mold assembly includes a first drive assembly, a lower mold, a movable plate, and a fixed plate. The fixed plate is fixed to the upper surface of the lower mold and has several protrusions distributed in the front-back direction on its left end. The movable plate is mounted on the upper surface of the lower mold and has several grooves on its right end that correspond one-to-one with the several protrusions. The first drive assembly drives the movable plate to move closer to or further away from the fixed plate, so that the several protrusions are respectively inserted into the several grooves to form the positioning space of the product. The unloading module is mounted on the frame and includes several trays and unloading components that can move in the horizontal and vertical directions; The material handling component is used to transfer the product on the vibratory plate to the lower mold and position it in each of the grooves; the material unloading component is used to transfer the magnetized product on the lower mold to the tray. Each of the protruding front surfaces and each of the groove front inner walls are arranged in the left-right direction, and the left end surface of the fixing plate and each of the groove left inner walls are arranged in the front-back direction. The left end surface of the fixing plate, the protruding front surface, the groove front inner wall and the groove left inner wall are respectively used to abut against the four sides of a product. The direction in which the first driving component drives the movable plate to move is inclined relative to the groove front inner wall.

2. The automated multi-station magnetizing apparatus of claim 1, wherein, The magnetization module also includes a base plate, which is mounted on the frame. The first drive assembly includes a first drive motor, a first lead screw module, and a first connecting plate. The first drive motor is mounted on the base plate, and the first connecting plate is slidably mounted on the base plate and connected to the movable plate. The first drive motor drives the first connecting plate to slide through the first lead screw module.

3. The automated multi-station magnetizing apparatus of claim 2, wherein, The lower mold assembly also includes an adjustment plate connected to the base plate. The adjustment plate has several elongated holes extending in the front-rear direction. Fixing bolts pass through the elongated holes and are threadedly connected to the base plate. The first drive motor and the first connecting plate are both connected to the adjustment plate.

4. The automated multi-station magnetizing apparatus of claim 1, wherein, The magnetization module also includes a base plate and a second drive assembly. The base plate is slidably connected to the frame in the left-right direction. The lower mold assembly is connected to the base plate. The second drive assembly drives the base plate to slide in the left-right direction. The loading module and the unloading module are located in front of the magnetization module and the unloading module is located to the left of the loading module.

5. The automated multi-station magnetizing apparatus of claim 1 or 4, wherein, The feeding module further includes a third drive component, a fourth drive component, a second connecting plate, and two uprights. The two uprights are distributed on the frame at left-right intervals. The two ends of the second connecting plate are slidably connected to the two uprights in the front-back direction. The third drive component is connected to one of the uprights and drives the second connecting plate to slide in the front-back direction. The picking component further includes a mounting frame. A plurality of suction nozzles are connected to the mounting frame. The fourth drive component is connected to the second connecting plate and drives the mounting frame to slide in the left-right direction.

6. The automated multi-station magnetization equipment according to claim 5, characterized in that, The material handling assembly further includes several return springs, several movable blocks, several second drive motors, several third drive motors, several first synchronous belt modules, and several second synchronous belt modules. The movable blocks are distributed along the front-back direction and are all slidably connected to the mounting frame. The second drive motors are all connected to the mounting frame and are all connected to a first synchronous belt module. The synchronous belt of each first synchronous belt module is connected to a movable block and drives the movable block to move up and down. The return springs are arranged vertically and vertically, with their upper and lower ends respectively connected to the mounting frame and a movable block. Each suction nozzle is rotatably connected to a movable block through a bearing. The third drive motors are all connected to the mounting frame and drive the suction nozzle to rotate through a second synchronous belt module.

7. The automated multi-station magnetization equipment according to claim 1 or 4, characterized in that, The unloading module further includes a fifth drive assembly, a sixth drive assembly, a seventh drive assembly, a third connecting plate, and two uprights. The two uprights are spaced apart on the frame. The two ends of the third connecting plate are slidably connected to the two uprights in the front-back direction. The fifth drive assembly is connected to one of the uprights and drives the third connecting plate to slide in the front-back direction. The sixth drive assembly is connected to the third connecting plate and drives the seventh drive assembly to move in the left-right direction. The unloading assembly further includes a fourth connecting plate, an eighth drive assembly, a fifth connecting plate, several suction cups, a ninth drive assembly, a sixth connecting plate, a seventh connecting plate, several sleeves, and several magnetic needles. The seventh drive assembly drives the... The fourth connecting plate moves up and down. The eighth driving component is connected to the fourth connecting plate and drives the fifth connecting plate to move up and down. A plurality of suction cups are connected to the fifth connecting plate and are externally connected to a negative pressure device to pick up the tray. The ninth driving component is connected to the fourth connecting plate and drives the sixth connecting plate to move up and down. The seventh connecting plate is connected to the fourth connecting plate and is located below the sixth connecting plate. A plurality of sleeves are distributed along the front-back direction on the seventh connecting plate. A plurality of magnetic needles are distributed along the front-back direction on the sixth connecting plate. A plurality of magnetic needles pass through a plurality of sleeves respectively, and under the drive of the ninth driving component, the bottom end of the magnetic needle is exposed below the sleeve.

8. The automated multi-station magnetization equipment according to claim 1, characterized in that, The upper mold assembly includes an upper mold, a tenth drive assembly, an eighth connecting plate, a ninth connecting plate, and several guide pillars. The eighth connecting plate is connected to the frame via several guide pillars. The ninth connecting plate is slidably connected to several guide pillars. The tenth drive assembly is connected to the eighth connecting plate and drives the ninth connecting plate to slide up and down. The upper mold is connected to the lower end face of the ninth connecting plate.

9. The automated multi-station magnetization equipment according to claim 1, characterized in that, The visual positioning module includes two loading cameras located above the loading module and the magnetizing module, and a unloading camera located above the magnetizing module.

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