New energy motor self-adhesive material iron core scattered sheet curing automatic line

Abstract

The invention discloses a new energy motor self-adhesive material iron core scattered sheet curing automatic line. Comprising a double-layer circulation conveying line, a circulation tool, a tool backflow mechanism, a feeding station, a visual inspection station, a pressurizing, shaping and height measuring station, a sheet adding and reducing station, an electromagnetic induction heating, curing and cooling station, a tool cooling station, a storage station, a code printing and reading station, a height detection station, a cleaning air shower station, an offline storage station and the like. Automatic heating curing and cooling of self-adhesive iron core scattered sheets can be achieved, stacking and quality control of the iron core scattered sheets are conducted on line, cured iron core products are subjected to online code printing, code scanning, detection and air shower cleaning, the whole technological process is recorded on line, the production quality of the products is tracked in real time, the product percent of pass is increased, the production efficiency is improved, and accurate tracing of the products is achieved. The working procedures of manual carrying and tool locking are eliminated, the labor intensity of workers is reduced, and the problems of poor product quality and the like caused by product curing pressure difference generated by manual locking are solved.

Description

Technical Field

[0001] This invention relates to the field of new energy motor core production technology, specifically to an automated production line for curing loose sheets of self-adhesive material for new energy motor cores. Background Technology

[0002] The current manufacturing process for self-adhesive core materials for new energy drive motors involves manual stacking and locking of components, followed by conveyor belt transport to a heating tunnel oven for heating and curing. After cooling in an air-cooling zone, the components are manually removed from the line for subsequent coding and inspection. Due to the use of a tunnel oven for heating and cooling, processing time is long, production efficiency is low, the number of components is large, and the labor intensity for employees is high. Furthermore, the inability to guarantee component consistency and the manual locking of the components leads to variations in curing pressure, resulting in significant changes in the dimensions and performance of the cured products, compromising product quality, and causing a low product qualification rate. The manual removal of components after heating, curing, and cooling in the tunnel oven also prevents effective product traceability. Therefore, an automated curing line for self-adhesive core components for new energy drive motors is needed to achieve automated production, reduce employee labor intensity, improve production efficiency, enhance product quality, and enable accurate product traceability. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art by providing an automated curing line for self-adhesive material core sheets of new energy motors.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An automated curing line for self-adhesive material core sheets of new energy motors includes a double-layer circulating conveyor line. A circulating fixture is provided on the double-layer circulating conveyor line. A first fixture return mechanism is provided at one end of the double-layer circulating conveyor line. Starting from the first fixture return mechanism, the following are arranged sequentially along the double-layer circulating conveyor line: At the loading station, the loose iron core sheets are stacked onto the circulating fixture. The visual inspection station is used to detect whether there are misaligned or misplaced iron core laminations stacked on the circulating fixture; The pressure shaping and height measurement station is used to press the iron core sheets stacked on the circulating fixture and to detect the height of the pressed iron core sheets. The lamination addition / reduction station adds or removes laminations from the conveyed iron core to ensure that the total height of the iron core laminations is within the acceptable range. Multiple electromagnetic induction heating, curing and cooling stations heat and cure the conveyed iron core sheets, and then cool the cured iron core sheets. A second tooling return mechanism is provided on the side of the double-layer circulating conveyor line opposite to the electromagnetic induction heating, curing and cooling station. A post-processing workbench is provided on one side of the second tooling return mechanism. The post-processing workbench is provided with a tooling cooling station, a material storage station, a coding and reading station, a height detection station, a cleaning air shower station and an offline material storage station in sequence.

[0005] Furthermore, the feeding station and the electromagnetic induction heating, curing and cooling station are respectively equipped with station conveyor lines, which are respectively connected to the double-layer circulating conveyor line. The station conveyor line of the electromagnetic induction heating, curing and cooling station is also connected to the double-layer circulating conveyor line through a unidirectional conveyor line. The tooling cooling station is also equipped with a station conveyor line and is connected to the second tooling return mechanism. The double-layer circulating conveyor line is also equipped with multiple sets of reversing rollers.

[0006] Furthermore, the visual inspection station, the pressure shaping and height measurement station, the piece addition and subtraction station, the electromagnetic induction heating curing and cooling station, and the tooling cooling station are each equipped with a liftable top plate, which is used to lift the circulating tooling.

[0007] Furthermore, the circulating tooling includes a loading plate and a precision positioning shaft disposed on the loading plate, on which the iron core pieces are stacked and sleeved; both the first tooling return mechanism and the second tooling return mechanism include a return cabinet, and each return cabinet is provided with a hoist, which is used to receive the loading plate and move it up and down.

[0008] Furthermore, the visual inspection station is equipped with a height-adjustable high-definition industrial camera via a first bracket, the pressure shaping and height measurement station is equipped with a first servo press via a second bracket, and a displacement sensor is also provided inside the second bracket; the addition and subtraction station is equipped with a height-adjustable vacuum suction mechanism via a third bracket, used to suction single iron core loose pieces.

[0009] Furthermore, a fourth support is provided at the electromagnetic induction heating, curing, and cooling station. Above the fourth support is a second servo press and an independently liftable induction heating mechanism. The second servo press and the induction heating mechanism are arranged along the same central axis. A liftable annular pressure plate is provided at the lower end of the second servo press. An electromagnetic induction coil is provided below the induction heating mechanism. The electromagnetic induction coil is used for heating and curing the iron core sheets. A fifth support is also provided on both sides of the fourth support. A movable cooling mechanism is provided on each of the fifth supports. The cooling mechanism is arranged towards the iron core sheets and is used for cooling the cured iron core sheets.

[0010] Furthermore, the output end of the second servo press is connected to a first connecting plate, and the annular pressure plate is connected to the lower part of the first connecting plate via multiple first connecting rods; the induction heating mechanism includes a first lifting cylinder disposed on both sides of the first connecting plate, the output end of the first lifting cylinder is connected to a second connecting plate via a connecting seat, the middle part of the second connecting plate is provided with a through hole for the first connecting rod to pass through, multiple second connecting rods are provided below the second connecting plate, an annular mounting plate is provided below the second connecting rods, the electromagnetic induction coil is connected to the area enclosed by the second connecting rods and the annular mounting plate, and the first connecting plate and the second connecting plate are also slidably connected to the fourth bracket respectively.

[0011] Furthermore, the fifth bracket is equipped with a horizontally moving cylinder, and the cooling mechanism includes a U-shaped mounting frame connected to the output end of the horizontally moving cylinder. The U-shaped mounting frame contains multiple cooling copper blocks with arc-shaped cooling surfaces. The fourth bracket also has multiple support rods on one side, and temperature sensors and photoelectric sensors are respectively installed on the support rods.

[0012] Furthermore, the tooling cooling station includes a sixth bracket set on the post-processing workbench. A first bidirectional moving module is provided on one side of the sixth bracket. The first bidirectional moving module is connected to an inner support claw, and the inner support claw is connected to an inner support cooling copper block. A seventh bracket is also provided on one side of the sixth bracket. A second bidirectional moving module is provided on the seventh bracket. The second bidirectional moving module is connected to a transport gripper. The transport gripper transfers the solidified and cooled iron core to the storage station.

[0013] Furthermore, the post-processing workbench is also equipped with a robotic arm or a transfer module, which transfers the solidified and cooled iron core from the storage station to the coding and reading station, the height detection station, the cleaning air shower station, and the offline storage station in sequence.

[0014] Compared with existing technologies, the beneficial effects of this invention are: 1. This automatic curing line for self-adhesive iron core sheets of new energy motors can realize automated heating, curing, and cooling of self-adhesive iron core sheets for new energy drive motors. It allows for online stacking and quality control of the iron core sheets, online coding, scanning, inspection, and air shower cleaning of the cured iron core products. The entire process is recorded online, allowing real-time tracking of product quality, improving product qualification rate, increasing production efficiency, and achieving precise product traceability. It eliminates the need for manual handling and tooling tightening, reducing worker labor intensity and eliminating problems such as poor product quality caused by differences in curing pressure during manual tightening. 2. The interconnected setup of these workstations ensures orderly and efficient operation of each process. Before heating and curing, the stacked iron core sheets undergo comprehensive monitoring and control in terms of accuracy, size, and shape, ensuring that each group of heated and cured iron core sheets yields a qualified iron core product. After heating and curing, not only are the iron core products cooled, but the tooling is also cooled, ensuring the quality of the iron core products. 1. It can be completely separated from the circulating fixture, and the circulating fixture can be cooled to a suitable temperature for transferring the next batch of iron core sheets; 2. The circulating fixture can perform automated loading and stacking of iron core sheets at the feeding station. In conjunction with the visual inspection station, the pressure shaping and height measurement station, and the sheet addition and subtraction station, it can eliminate the manual clamping process of the fixture, avoid inconsistencies in product size and performance due to differences in clamping force, and avoid product height issues that lead to differences in the overall performance of the customer machine, thus improving the consistency and stability of product quality; 3. The electromagnetic induction heating, curing, and cooling station is the core processing station, and several sets are set up to simultaneously perform curing and heating treatment on multiple groups of loose iron core sheets, reducing the waiting time on the production line and facilitating the rational control of the production cycle; 4. After the product is automatically measured and automatically marked with a code online, the production process of each product is automatically associated with the QR code, realizing accurate traceability of individual products; the product is automatically cleaned online with an air shower to ensure product cleanliness and eliminate the reduction in overall machine performance caused by poor product cleanliness. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall layout of an automatic curing line for self-adhesive material core sheets of a new energy motor according to the present invention. Figure 2 This is a three-dimensional structural schematic diagram of an automatic curing line for self-adhesive material core sheets of a new energy motor according to the present invention; Figure 3 This is a three-dimensional structural diagram of the visual inspection station, the pressure shaping and height measurement station, and the piece addition / reduction station of the present invention; Figure 4 This is a partially enlarged structural diagram of the second tooling return mechanism of the present invention; Figure 5This is a three-dimensional structural schematic diagram of the electromagnetic induction heating curing and cooling station of the present invention; Figure 6 This is a side view of the electromagnetic induction heating curing and cooling station of the present invention. Figure 7 This is a three-dimensional structural schematic diagram of the cooling mechanism on the electromagnetic induction heating curing and cooling station of the present invention; Figure 8 This is a three-dimensional structural diagram of the tooling cooling station of the present invention; Figure 9 This is a side view of the cooling station of the tooling in this invention. Figure 10 This is a three-dimensional structural diagram of the internally supported cooling copper block on the tooling cooling station of the present invention; In the diagram: 1. Double-layer circulating conveyor line; 2. Circulating tooling; 201. Loading plate; 202. Precision positioning shaft; 3. First tooling return mechanism; 4. Loading station; 5. Visual inspection station; 501. First support; 502. High-definition industrial camera; 6. Pressurization, shaping, and height measurement station; 601. Second support; 602. First servo press; 603. Displacement sensor; 7. Adding / reducing sheet station; 701. Third support; 702. Vacuum suction mechanism; 8. Electromagnetic induction heating, curing, and cooling station; 801. Fourth support; 802. Second servo press; 803. First connecting plate; 804. First connecting rod; 805. Annular pressure plate; 806. First lifting cylinder; 807. Connecting seat; 808. Second connecting plate; 809. Second connecting rod; 810. Annular mounting plate; 811. Electromagnetic induction coil; 812. Fifth support; 813. Horizontal moving cylinder; 814. U-shaped mounting frame; 815. Cooling copper block; 816. Support rod; 817. Temperature sensor; 818. Photoelectric sensor; 9. Second tooling return mechanism; 10. Post-processing workbench; 11. Tooling cooling station; 1101. Sixth support; 1102. First bidirectional moving module; 1103. Internal support claw; 1104. Internal support cooling copper block; 1105. Seventh support; 1106. Second bidirectional moving module; 1107. Handling gripper; 12. Storage station; 13. Coding and reading station; 14. Height detection station; 15. Cleaning air shower station; 16. Offline storage station; 17. Station conveyor line; 18. Unidirectional conveyor line; 19. Reversing roller; 20. Iron core sheet; 21. Return cabinet; 22. Hoist. Detailed Implementation

[0016] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely 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.

[0017] In the description of this invention, it should be noted that the terms "middle," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] like Figures 1-10 As shown, an automatic curing line for self-adhesive material core sheets for new energy motors includes a double-layer circulating conveyor line 1. A circulating fixture 2 is provided on the double-layer circulating conveyor line 1. A first fixture return mechanism 3 is provided at one end of the double-layer circulating conveyor line 1. Starting from the first fixture return mechanism 3, the following are arranged sequentially along the double-layer circulating conveyor line 1: At the loading station 4, the iron core sheets 20 are stacked onto the circulating fixture 2. Visual inspection station 5 is used to detect whether there are misaligned or misplaced iron core laminations stacked on the circulating fixture 2; The pressure shaping and height measuring station 6 is used to press the iron core pieces stacked on the circulating fixture 2 and to detect the height of the pressed iron core pieces. Station 7, which adds or removes laminations from the conveyed iron core, ensures that the total height of the iron core laminations is within the acceptable range. Multiple electromagnetic induction heating, curing and cooling stations 8 heat and cure the conveyed iron core sheets and cool the cured iron core sheets. A second tooling return mechanism 9 is provided on the side of the double-layer circulating conveyor line 1 opposite to the electromagnetic induction heating curing and cooling station 8. A post-processing workbench 10 is provided on one side of the second tooling return mechanism 9. The post-processing workbench 10 is provided with a tooling cooling station 11, a material storage station 12, a coding and reading station 13, a height detection station 14, a cleaning air shower station 15, and an offline material storage station 16 in sequence.

[0019] This automated curing line for self-adhesive core sheets of new energy motors, through the setup of the feeding station 4, the visual inspection station 5, the pressure shaping and height measurement station 6, the sheet addition / reduction station 7, the electromagnetic induction heating curing and cooling station 8, the tooling cooling station 11, the storage station 12, the coding and reading station 13, the height detection station 14, the cleaning and air shower station 15, and the off-line storage station 16, enables automated heating, curing, and cooling of self-adhesive core sheets for new energy drive motors. It allows for online stacking and quality control of the core sheets, online coding, scanning, inspection, and air shower cleaning of the cured core products. The entire process is recorded online, allowing real-time tracking of product quality, improving product qualification rate, increasing production efficiency, and achieving precise product traceability. It eliminates the need for manual handling and tooling tightening, reducing worker labor intensity and eliminating problems such as poor product quality caused by differences in curing pressure during manual tightening.

[0020] The interconnected setup of these workstations ensures the orderly and efficient operation of each process. Before heating and curing, the stacked iron core sheets undergo comprehensive monitoring and control in terms of precision, size, and shape to ensure that each set of heated and cured iron core sheets yields a qualified iron core product. After heating and curing, not only are the iron core products cooled, but the tooling is also cooled. This ensures that the iron core products can be properly separated from the circulating tooling and that the circulating tooling is cooled to a suitable temperature for transferring the next batch of iron core sheets.

[0021] The double-layer circulating conveyor line 1 can transport iron core sheets to various workstations on the upper layer, and can also allow the unloaded circulating fixture 2 to return to the starting position. The entire process does not require personnel to move the fixtures, which reduces the labor intensity of employees, reduces manual operation time, improves operation efficiency, and reduces the difficulty of operation.

[0022] The circulating fixture 2 can perform automated loading and stacking of iron core sheets at the feeding station. In conjunction with the visual inspection station 5, the pressure shaping and height measurement station 6, and the sheet addition and subtraction station 7, it can eliminate the manual clamping process, avoid inconsistencies in product size and performance due to differences in clamping force, and also avoid product height issues that could lead to differences in overall machine performance at the client end, thereby improving product quality consistency and stability.

[0023] The electromagnetic induction heating curing and cooling station 8 and the tooling cooling station 11 are the core processing stations, and several sets are set up to simultaneously perform curing and heating treatment on multiple sets of loose iron cores, reducing the waiting time on the production line and facilitating the rational control of the production cycle. The tooling cooling station 11 can rapidly cool the circulating tooling to prevent it from expanding due to excessive temperature, which would prevent the loose cores from being stacked properly. After the product is automatically measured and automatically marked with a code online, the production process of each product is automatically associated with the QR code, realizing accurate traceability of individual products. The product is automatically cleaned online with an air shower to ensure product cleanliness and eliminate the reduction in overall machine performance caused by poor product cleanliness.

[0024] Furthermore, the feeding station 4 and the electromagnetic induction heating, curing and cooling station 8 are respectively equipped with station conveyor lines 17, which are respectively connected to the double-layer circulating conveyor line 1. The other end of the station conveyor line of the electromagnetic induction heating, curing and cooling station 8 is also connected to the double-layer circulating conveyor line 1 via a unidirectional conveyor line 18. The tooling cooling station 11 is also equipped with a station conveyor line 17 and is connected to the second tooling return mechanism 9. Multiple sets of reversing rollers 19 are also provided on the double-layer circulating conveyor line 1 and the unidirectional conveyor line 18.

[0025] The double-layer circulating conveyor line 17 can be connected in series with each workstation to facilitate material transport and the circulation of the circulating tooling. Each electromagnetic induction heating, curing and cooling workstation 8 is equipped with a unidirectional conveyor line, which can transport the heated, cured and cooled circulating tooling and products back to the double-layer circulating conveyor line 1 from another line, avoiding conflict with the incoming materials of the electromagnetic induction heating, curing and cooling workstation. The reversing roller 19 is set at the intersection of the double-layer circulating conveyor line and each unidirectional conveyor line, as well as at the second tooling return mechanism, to adjust the conveying direction of the circulating tooling and facilitate its switching and movement on conveyor lines in different directions.

[0026] The double-layer circulating conveyor line 1 is a double-layered multi-link chain, which can be assembled and used in multiple sections according to the length of the automatic line. The station conveyor line 17 and the unidirectional conveyor line 18 are single-layered multi-link chains, which can satisfy the single-layer conveying function.

[0027] Furthermore, the visual inspection station 5, the pressure shaping and height measurement station 6, the piece addition and subtraction station 7, the electromagnetic induction heating curing and cooling station 8, and the tooling cooling station 11 are each equipped with a liftable top plate, which is used to lift the circulating tooling.

[0028] A lifting cylinder is usually installed below the top plate, which can lift or lower the top plate so that the circulating tooling can be lifted at each work station where operation is required to perform related operations.

[0029] Furthermore, the circulating tooling 2 includes a loading plate 201 and a precision positioning shaft 202 disposed on the loading plate 201, on which the iron core pieces 20 are stacked and sleeved; the first tooling return mechanism 3 and the second tooling return mechanism 9 both include a return cabinet 21, and a hoist 22 is respectively provided in the return cabinet 21, the hoist 22 being used to receive the loading plate 201 and transfer it up and down.

[0030] The outer periphery of the precision positioning shaft 202 is provided with a positioning keyway that matches the groove shape of the stator core to be stacked. It has a precise guiding and positioning structure, which can eliminate the misalignment of the core pieces during the stacking process, ensure the quality of the core product, and at the same time has a rapid positioning capability, making stacking convenient and quick.

[0031] Furthermore, in combination Figure 3 As shown, the visual inspection station 5 is equipped with a liftable high-definition industrial camera 502 via a first bracket 501; the pressure shaping and height measurement station 6 is equipped with a first servo press 602 via a second bracket 601; and the second bracket 601 is also equipped with a displacement sensor 603; the addition and subtraction station 7 is equipped with a liftable vacuum suction mechanism 702 via a third bracket 701, which is used to suction single iron core loose pieces.

[0032] Specifically, the visual inspection station 5 uses a 20-megapixel high-definition camera. The camera focal length is controlled by a servo motor and automatically adjusts the camera focal length to take pictures and identify the keyway on the outer diameter of the product. The camera detection accuracy is 0.005mm, which can effectively prevent the product from being misprinted.

[0033] The pressure shaping and height measurement station 6 uses a 5T high-precision servo press with a pressure accuracy of ±0.1T. The servo press pre-presses the product to ensure the flatness and parallelism of the product dimensions. The height measurement is performed using a high-precision displacement sensor with a measurement accuracy of ±0.002mm, ensuring the accuracy of the product height measurement dimensions.

[0034] The addition / reduction station 7, based on the results measured by the pressure shaping and height measuring station, uses a vacuum suction mechanism to add or remove pieces from the product, ensuring that the product height is within the acceptable range. If the height is correct, the addition / reduction station does not need to operate. This process can effectively address the issue of too many or too few pieces in stacked iron core sheets, eliminating the need for the iron core sheets to return to the loading station for addition / reduction operations, ensuring smooth operation of the automatic line, and handling any problems found in the automatic line in real time.

[0035] Furthermore, in combination Figures 5-7As shown, the electromagnetic induction heating curing and cooling station 8 is equipped with a fourth support 801. Above the fourth support 801 is a second servo press 802 and an independently height-adjustable induction heating mechanism. The second servo press 802 and the induction heating mechanism are arranged along the same central axis. The lower end of the second servo press 802 is equipped with a height-adjustable annular pressure plate 805. Below the induction heating mechanism is an electromagnetic induction coil 811, which is used for heating and curing the iron core sheets. Fifth supports 812 are also provided on both sides of the fourth support 801. Movable cooling mechanisms are respectively provided on the fifth supports 812, which are arranged towards the iron core sheets and used for cooling the cured iron core sheets. An electromagnetic induction heating control cabinet is also provided around the electromagnetic induction heating curing and cooling station.

[0036] The induction heating mechanism can move up and down following the output of the second servo press 802, and it can also move up and down independently relative to the second servo press 802. The two work together without interfering with each other, and can effectively complete the heating and curing agent cooling operation. The annular pressure plate 805 can apply pressure from above to press the stacked self-adhesive iron core sheets together, which is beneficial to their heating and curing. Moreover, this pressure will be maintained until the iron core product cools down after heating and curing, avoiding the problem of reduced adhesion caused by premature release of pressure or repeated pressure during cooling.

[0037] The use of an electromagnetic induction coil 811 for non-contact heating not only offers high heating efficiency but also concentrates the coil's magnetic field on the iron core area, reducing the impact on surrounding non-conductive components and lowering energy consumption and potential safety risks. The annular pressure plate 805 consistently presses the iron core sheets together, and the contact cooling mechanism rapidly cools the product, significantly reducing cooling waiting time.

[0038] Furthermore, the output end of the second servo press 802 is connected to a first connecting plate 803, and the annular pressure plate 805 is connected to the lower part of the first connecting plate 803 via multiple first connecting rods 804; the induction heating mechanism includes a first lifting cylinder 806 disposed on both sides of the first connecting plate 803, the output end of the first lifting cylinder 806 is connected to a second connecting plate 808 via a connecting seat 807, the middle part of the second connecting plate 808 is provided with a through hole for the first connecting rod 804 to pass through, multiple second connecting rods 809 are provided below the second connecting plate 808, an annular mounting plate 810 is provided below the second connecting rods 809, the electromagnetic induction coil 811 is connected in the area enclosed by the second connecting rods 809 and the annular mounting plate 810, and the first connecting plate 803 and the second connecting plate 808 are also slidably connected to the fourth bracket 801 respectively.

[0039] After the second servo press 802 is started, it can drive the first connecting plate 803 to slide relative to the fourth bracket 801. The first connecting plate 803 can then drive the first connecting rod 804 and the annular pressure plate 805 connected to it to move up and down, allowing the annular pressure plate 805 to press on the iron core sheets and apply pressure. The induction heating mechanism will also be driven to move downward. Several first connecting rods 804 are arranged symmetrically at the center and connected to the annular pressure plate 805, which can evenly transmit the pressure from above, allowing the annular pressure plate to apply pressure evenly to the iron core sheets.

[0040] When the annular pressure plate moves downward and abuts against the upper surface of the iron core sheet, the second servo press will continuously apply and maintain pressure; the electromagnetic induction coil also descends to above the iron core sheet, and then the first lifting cylinder drives the second connecting plate to continue moving downward. The descending electromagnetic induction coil completely encloses the self-adhesive iron core sheet for induction heating. After heating and curing, the electromagnetic induction coil can be lifted by the action of the first lifting cylinder, and the second servo press will continue to apply pressure to the self-adhesive iron core through the annular pressure plate, waiting for the cooling mechanism to perform cooling operation. After cooling is completed, the second servo press will release pressure and allow the annular pressure plate to rise.

[0041] Furthermore, the fifth bracket 812 is provided with a horizontal moving cylinder 813, and the cooling mechanism includes a U-shaped mounting frame 814 connected to the output end of the horizontal moving cylinder 813. The U-shaped mounting frame 814 is provided with a plurality of cooling copper blocks 815 with arc-shaped cooling surfaces. The fourth bracket 801 is also provided with a plurality of support rods 816 on one side, and temperature sensors 817 and photoelectric sensors 818 are respectively mounted on the support rods 816.

[0042] The cooling copper block 815 can directly contact the product and, in conjunction with liquid cooling, can rapidly cool it, reducing the cooling time of the self-adhesive iron core to 6-7 minutes. This significantly improves cooling efficiency compared to existing air-cooling methods. The cooling copper block 815 has cooling channels inside and coolant inlets / outlets communicating with these channels. These inlets / outlets are equipped with pipe joints, which are connected to a circulating cooling cabinet via pipelines.

[0043] The temperature sensor 817 can measure the temperature of the iron core in real time, and the photoelectric sensor 818 can detect whether there are self-adhesive iron core fragments at the heating and cooling positions.

[0044] Furthermore, in combination Figures 8-10As shown, the tooling cooling station 11 includes a sixth support 1101 mounted on the post-processing workbench 10. A first bidirectional moving module 1102 is provided on one side of the sixth support 1101. The first bidirectional moving module 1102 is connected to an inner support claw 1103. The inner support claw 1103 is connected to an inner support cooling copper block 1104. The inner support cooling copper block 1104 is also provided with a cooling channel inside. An inlet and outlet pipe joint connected to the cooling channel is provided above. The inlet and outlet pipe joints are connected to the cooling circulation cabinet through pipes. A seventh support 1105 is also provided on one side of the sixth support 1101. A second bidirectional moving module 1106 is provided on the seventh support 1105. The second bidirectional moving module 1106 is connected to a transport gripper 1107. The transport gripper 1107 transfers the solidified and cooled iron core to the storage station.

[0045] The tooling cooling station 11 adopts an internal support cooling structure. The internal support cooling copper block 1104 is circulated with cooling water. The cooling block is in full contact with the inner wall of the product tooling. The cooling water removes the residual heat of the tooling and cools it to room temperature to about 20°C within 2 minutes. Then, it is transported to the loading station by a double-speed chain for subsequent product manufacturing. The transport gripper connected to the seventh bracket 1105 via the second bidirectional moving module 1106 can remove the solidified iron core product from the circulating tooling and transfer it to the next process, freeing up the circulating tooling for the next loading of materials.

[0046] Furthermore, the post-processing workbench 10 is also equipped with a robotic arm or transfer module with a handling gripper. The robotic arm or the transfer module transfers the solidified and cooled iron core from the storage station to the coding and reading station, the height detection station, the cleaning air shower station, and the offline storage station in sequence.

[0047] The following is an automated curing method for the self-adhesive material core sheet curing line of this new energy motor: The product recycling fixture is transported to the product loading station 4 of the production line via the first fixture return mechanism 3. The operator stacks the self-adhesive iron core loose products onto the recycling fixture 2 according to the product stacking requirements. The stacked product recycling fixture is then transported to the visual inspection station 5 via the production line's double-speed chain. A 20-megapixel high-definition camera is used to inspect whether there are any misalignments or misplacements in the product keyways. The camera's inspection accuracy can reach 0.005mm. The camera evaluates whether the product stacking is correct and prevents misalignment of the product stacking position and direction to avoid non-compliance with product requirements.

[0048] The stacked products after inspection are then transported to the pressure shaping and height measurement station 6 via a high-speed conveyor belt. The products are pre-pressed by a high-precision servo press with a pressure accuracy of ±0.1T, eliminating burrs and gaps between the product pieces, making the products stacked more tightly, and improving the flatness and parallelism of the products. The height of the products is measured under pressure by a displacement sensor with a measurement accuracy of ±0.002mm, ensuring that the measured height of the products is accurate and providing data reference for the addition or subtraction of pieces in the next process.

[0049] The circulating fixture 2 carrying the product is transported to the addition / reduction station 7 via a high-speed conveyor belt. The system uses a vacuum suction mechanism to add or remove pieces from the product based on the results of the previous process, ensuring that the product height is within the acceptable range.

[0050] The qualified product-bearing cyclic tooling is transported to the electromagnetic induction heating, curing, and cooling station 8 via a high-speed conveyor belt. After the system detects the product, the electromagnetic induction coil descends from the initial position to the working position, and the servo press simultaneously begins to press down. Once the pressure reaches the curing pressure, the electromagnetic induction coil begins to automatically heat and cure the product. The product heating and curing temperature is 220℃±15℃, and the heating and curing time must be completed within 6 minutes. The product uses a high-precision infrared temperature sensor to accurately measure the product heating temperature. Through PID tuning, the temperature sensor and heating coil are automatically adjusted to the target temperature. If there is a difference from the set target temperature, the system will automatically adjust the heating power and time repeatedly until the heating temperature is reached. During product heating and curing, the temperature of all areas of the product can be controlled within ±10° to ensure the optimal curing temperature of the self-adhesive coating. After the product heating process is complete, the electromagnetic induction coil retracts from the heating position to the initial position via a telescopic cylinder. The servo press maintains constant pressure, and the cooling copper block is simultaneously pushed to the product cooling position via the telescopic cylinder, making full contact with the product surface. Cooling begins, and the product needs to be rapidly cooled from approximately 230°C to 60°C within 6 minutes. During cooling, the product's dimensions and form tolerances must meet requirements, and the product must not rust. A contoured, split structure design for the cooling copper block ensures complete contact with the product during cooling. Cooling water circulates inside the cooling copper block, and the water temperature must be controlled at 12°C ± 1°C. If the water temperature is too low, condensation will easily form on the product surface, leading to rust; if the water temperature is too high, the cooling time will be too long, failing to meet the production cycle requirements. A constant pressure must be continuously applied during the product heating, curing, and cooling processes to ensure the self-adhesive coating's activity is fully activated. A 3T high-precision servo press is used for pressurization, with a pressure accuracy of ±0.1T. The servo press can adjust the pressure value in real time to maintain constant pressure throughout the entire process.

[0051] After the product has finished heating, curing, and cooling, it is transported to the product unloading fixture cooling station 11 via a double-speed chain and tooling return mechanism. The product is then ejected from the fixture by a lower lifting machine and transported to the storage station by material handling grippers. The inner support cooling copper block is driven down into the shaft hole of the circulating fixture by a bidirectional moving module to cool the circulating fixture. The inner support cooling block is in full contact with the inner wall of the precision positioning shaft of the circulating fixture, and the residual heat of the circulating fixture is carried away by cooling water. The temperature is cooled to about room temperature to 20°C within 2 minutes, so that the subsequent product loading and stacking can be carried out.

[0052] The product is transported to the coding and reading station 13 by the transport gripper. After the equipment senses the product, it starts to automatically code. After coding is completed, it automatically scans the code. The product has the dual anti-duplicate code capability of automatic anti-duplicate code of the coding system and anti-duplicate code of the scanning comparison. The product QR code is associated with the production process and online detection data of each product, so that the product can be accurately traced.

[0053] The product is moved to the height detection station 14 by the transport gripper. The equipment automatically measures the height of the product. The product height measurement uses a set of high-precision laser displacement sensors. The rotating servo module takes measurements at any point on the circumference of the product. The measurement accuracy of the laser displacement sensor can reach ±0.002mm. The software system automatically calculates and evaluates the flatness, parallelism and height of the product based on the measured data, and automatically determines whether the product size is OK or NG.

[0054] The product is transported to the cleaning air shower station 15 by the handling grippers. The product air shower cleaning uses an ion air pump and a mixture of clean compressed air. High-pressure cleaning air knives from the top, bottom, and sides are used to air shower the entire inner and outer diameter area of ​​the product. The air knife speed can reach 14-15 m / s. During the air shower, the product is sealed on all sides. The air knife blows through the product surface by the downward suction device, removing metal particles, non-metal particles, and fibers. The downward suction volume is greater than the air knife blowing volume, forming a negative pressure to prevent foreign objects from flowing back in the sealed space. The product meets the design cleanliness requirements. The product is then transported to different unloading conveyor belts at the offline storage station 16 according to online data by the grippers. The operator performs offline inspection and packaging according to the products on the unloading conveyor line.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated curing line for self-adhesive material core sheets of new energy motors, characterized in that, The system includes a double-layer circulating conveyor line, on which a circulating fixture is provided. One end of the double-layer circulating conveyor line is equipped with a first fixture return mechanism. Starting from the first fixture return mechanism, the following are arranged sequentially along the double-layer circulating conveyor line: At the loading station, the loose iron core sheets are stacked onto the circulating fixture. The visual inspection station is used to detect whether there are misaligned or misplaced iron core laminations stacked on the circulating fixture; The pressure shaping and height measurement station is used to press the iron core sheets stacked on the circulating fixture and to detect the height of the pressed iron core sheets. The lamination addition / reduction station adds or removes laminations from the conveyed iron core to ensure that the total height of the iron core laminations is within the acceptable range. Multiple electromagnetic induction heating, curing and cooling stations heat and cure the conveyed iron core sheets, and then cool the cured iron core sheets. A second tooling return mechanism is provided on the side of the double-layer circulating conveyor line opposite to the electromagnetic induction heating, curing and cooling station. A post-processing workbench is provided on one side of the second tooling return mechanism. The post-processing workbench is provided with a tooling cooling station, a material storage station, a coding and reading station, a height detection station, a cleaning air shower station and an offline material storage station in sequence.

2. The automatic curing line for self-adhesive material core sheets of new energy motors according to claim 1, characterized in that, The feeding station and the electromagnetic induction heating, curing and cooling station are each equipped with a station conveyor line, which is connected to the double-layer circulating conveyor line. The station conveyor line of the electromagnetic induction heating, curing and cooling station is also connected to the double-layer circulating conveyor line through a unidirectional conveyor line. The tooling cooling station is also equipped with a station conveyor line and is connected to the second tooling return mechanism. The double-layer circulating conveyor line is also equipped with multiple sets of reversing rollers.

3. The automatic curing line for self-adhesive material core sheets of new energy motors according to claim 1, characterized in that, The visual inspection station, the pressure shaping and height measurement station, the piece addition and subtraction station, the electromagnetic induction heating curing and cooling station, and the tooling cooling station are each equipped with a liftable top plate, which is used to lift the circulating tooling.

4. The automatic curing line for self-adhesive material core sheets of new energy motors according to claim 1, characterized in that, The cyclic tooling includes a loading plate and a precision positioning shaft disposed on the loading plate, on which the iron core pieces are stacked and sleeved. Both the first tooling return mechanism and the second tooling return mechanism include a return cabinet, and each return cabinet is equipped with a hoist, which is used to receive the tooling loading plate and move it up and down.

5. The automatic curing line for self-adhesive material core sheets of new energy motors according to claim 1, characterized in that, The visual inspection station is equipped with a height-adjustable high-definition industrial camera via a first bracket; the pressure shaping and height measurement station is equipped with a first servo press via a second bracket, and a displacement sensor is also installed inside the second bracket; the addition and subtraction station is equipped with a height-adjustable vacuum suction mechanism via a third bracket, used to absorb single iron core loose pieces.

6. The automatic curing line for self-adhesive material core sheets of new energy motors according to claim 1, characterized in that, A fourth support is provided at the electromagnetic induction heating, curing, and cooling station. Above the fourth support is a second servo press and an independently liftable induction heating mechanism. The second servo press and the induction heating mechanism are arranged along the same central axis. A liftable annular pressure plate is provided at the lower end of the second servo press. An electromagnetic induction coil is provided below the induction heating mechanism. The electromagnetic induction coil is used for heating and curing the iron core sheets. A fifth support is also provided on both sides of the fourth support. A movable cooling mechanism is provided on each of the fifth supports. The cooling mechanism is arranged towards the iron core sheets and is used for cooling the cured iron core sheets.

7. The automatic curing line for self-adhesive material core sheets of new energy motors according to claim 6, characterized in that, The output end of the second servo press is connected to a first connecting plate, and the annular pressure plate is connected to the lower part of the first connecting plate via multiple first connecting rods; the induction heating mechanism includes a first lifting cylinder disposed on both sides of the first connecting plate, the output end of the first lifting cylinder is connected to a second connecting plate via a connecting seat, the middle part of the second connecting plate is provided with a through hole for the first connecting rod to pass through, multiple second connecting rods are provided below the second connecting plate, an annular mounting plate is provided below the second connecting rods, the electromagnetic induction coil is connected to the area enclosed by the second connecting rods and the annular mounting plate, and the first connecting plate and the second connecting plate are also slidably connected to the fourth bracket respectively.

8. The automatic curing line for self-adhesive material core sheets of new energy motors according to claim 6, characterized in that, The fifth bracket is equipped with a horizontally moving cylinder, and the cooling mechanism includes a U-shaped mounting frame connected to the output end of the horizontally moving cylinder. The U-shaped mounting frame contains multiple cooling copper blocks with arc-shaped cooling surfaces. The fourth bracket also has multiple support rods on one side, and temperature sensors and photoelectric sensors are respectively installed on the support rods.

9. The automatic curing line for self-adhesive material core sheets of new energy motors according to claim 1, characterized in that, The tooling cooling station includes a sixth bracket set on the post-processing workbench. A first bidirectional moving module is provided on one side of the sixth bracket. The first bidirectional moving module is connected to an inner support claw, and the inner support claw is connected to an inner support cooling copper block. A seventh bracket is also provided on the side of the sixth bracket. A second bidirectional moving module is provided on the seventh bracket. The second bidirectional moving module is connected to a transport gripper. The transport gripper transfers the solidified and cooled iron core to the storage station.

10. The automatic curing line for self-adhesive material core sheets of new energy motors according to claim 1, characterized in that, The post-processing workbench is also equipped with a robotic arm or a transfer module, which transfers the solidified and cooled iron core from the storage station to the coding and reading station, the height detection station, the cleaning and air shower station, and the offline storage station in sequence.

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