Coil winding, paint stripping and spot welding all-in-one machine and control system thereof

Abstract

The invention relates to the technical field of inductor coil preparation, in particular to a coil winding, paint stripping and spot welding all-in-one machine and a control system thereof.The coil winding, paint stripping and spot welding all-in-one machine comprises a rack, a wire supply mechanism, a wire stripping mechanism, a winding mechanism, a spot welding mechanism, a material returning mechanism, a demolding mechanism and a cutting mechanism; the wire stripping mechanism comprises a wire stripping cutter, a box body and a cutter driving motor, the wire winding mechanism comprises a material receiving platform, an upper cutting die, a lower cutting die and a wire winding cutter, the spot welding mechanism comprises an upper pole head, a lower pole head and a storage jig, the material returning mechanism comprises a station table and a reset air cylinder, and the demolding mechanism comprises a demolding air cylinder and a demolding ejection block. The cutting mechanism comprises a first stock bin, a second stock bin, a mechanical arm and a cutting die, the mechanical arm is used for placing the electrode plates on the containing jig and conveying the electrode plates subjected to spot welding to the cutting die, and all manufacturing links can be sequentially completed by clamping the workpieces in the automatic clamp and the multi-station conveying system at a time.

Description

Technical Field

[0001] The present invention relates to the technical field of inductor coil preparation, and more particularly to a coil winding, paint stripping and spot welding all-in-one machine and a control system thereof. Background Art

[0002] As one of the three fundamental passive electronic components in electronic circuit boards, inductors are widely used in consumer electronics, communications, industrial equipment, automotive, new energy, the Internet of Things, and other fields. With the rapid advancement of China's communications technology and the large-scale development of related industries such as the Internet of Things and smart cities, the Chinese inductor market is rapidly expanding. To meet these application requirements, inductors are trending towards miniaturization, high frequency, and high power. The trend toward smaller, lighter, and more high-performance electronic products is placing higher demands on the reliability and integrated design of inductors. Inductors primarily consist of three components: a coil, a magnetic core, and electrodes.

[0003] Coils are wound using enameled wire, which has an insulating coating designed to prevent short circuits and current leakage between coils. However, during the winding process, the insulation layer must be stripped away to ensure a proper electrical connection. This stripping process ensures a clean, undamaged portion of the wire, ensuring stability and reliability during subsequent soldering.

[0004] After winding, the coil ends need to be soldered to the electrodes to establish an electrical connection. This soldering process requires precise control of temperature and solder material to avoid cold joints or short circuits. Especially in high-frequency and high-power applications, soldering quality directly impacts the performance and durability of the inductor. Therefore, the coil soldering process requires not only precise operation but also rigorous quality testing to ensure that the solder joints meet required strength and conductivity.

[0005] Coil winding, paint stripping and soldering are critical steps in the inductor manufacturing process, and each step requires precise control to ensure the quality and reliability of the final product.

[0006] At present, in order to improve the efficiency of winding, a winding, paint stripping and spot welding integrated machine is used for processing. For example, the announcement number CN211102688U discloses a coil winding, spot welding and cutting fully automatic integrated machine.

[0007] A closed-loop conveyor line is adopted, and the eight-claw winding machine, spot welding mechanism, cutting mechanism, coil rack feeding and loading mechanism and product unloading mechanism are arranged around the conveyor line, realizing automatic recycling of tooling, and the overall layout is compact and takes up little space; the coil rack adopts a rotating double-station feeding, loading and unloading at the same time, and the product unloading adopts a double-receiving fixture, which effectively avoids downtime waiting time, ensures non-stop operation of the assembly line, and improves production efficiency.

[0008] In addition, announcement number CN112951586A discloses a multi-axis internal and external winding, paint stripping and welding integrated machine, which controls the working status of the equipment through an electric control box, transports the conveying carrier through a conveyor belt, carries materials through the conveying carrier, and winds the coil on the conveying carrier through the coil winding part. The enameled wire laser peeling part uses a laser to peel the welding position of the coil, and the rolled copper strip is cut into small sections through the copper strip supply part and placed on the conveying carrier. The coil and the copper strip are welded and connected by the laser welding part using a laser, and the excess wire ends of the coil are melted at the same time. The welded coil and copper strip are unloaded from the conveyor belt through the finished product unloading part and arranged neatly, so that the equipment can complete multiple processes such as winding, peeling, welding, and wire cutting of the inductor. The continuity between processes is good and the efficiency is high. At the same time, the defective rate is low, the labor cost is low, and the labor intensity is low.

[0009] Existing machines mentioned above suffer from issues such as uneven paint stripping, surface damage, and inconsistent peeling depth, all of which affect the subsequent soldering quality of the inductor, and thus its performance and reliability. During the winding process, especially in high-frequency and high-power applications, wire tension control and winding accuracy are particularly important. Current equipment struggles to maintain winding accuracy at high production speeds, leading to problems such as loose winding or misalignment, which impact overall product quality.

[0010] During the welding process, the current spot welding technology has the problem of weak welds, cold welds or short circuits. Especially in complex electrode plate welding and high-power applications, the stability and reliability of welding are crucial.

[0011] Therefore, a more efficient, intelligent and precise automatic coil winding, paint stripping and spot welding machine is needed. Summary of the Invention

[0012] To this end, the purpose of the present invention is to provide a coil winding, paint stripping and spot welding integrated machine and its control system to solve the problems existing in the prior art such as insufficient winding accuracy, uneven paint stripping, unstable welding quality, low production efficiency, large equipment space occupation and insufficient degree of automation.

[0013] To achieve the above object, the present invention provides the following technical solutions:

[0014] A coil winding, paint stripping and spot welding integrated machine includes a frame and:

[0015] The wire feeding mechanism includes an unwinder, a wire drawing machine, and a tension closed-loop control module. The tension closed-loop control module monitors the wire tension in real time through a magnetic encoder and dynamically adjusts the matching relationship between the unwinding speed and the wire drawing speed.

[0016] The wire stripping mechanism includes a wire stripping tool, a box body and a tool drive motor. The wire stripping tool is placed in the box body. The tool drive motor controls the wire stripping tool to strip the wire. The wire stripping tool has a working channel for the wire to pass through.

[0017] The winding mechanism includes a material receiving platform, an upper cutting die, a lower cutting die and a winding cutter. The lower cutting die is provided with a clamping hand for clamping the wire. The upper cutting die and the lower cutting die are both connected to a winding motor that drives each to rotate in order to complete the winding of the coil.

[0018] The spot welding mechanism includes an upper pole head, a lower pole head and a placement fixture. The upper pole head and the lower pole head are located on the upper and lower sides of the placement fixture. The placement fixture is used to place the electrode plate. When the coil on the material receiving platform is sent to the electrode plate, the upper pole head and the lower pole head are controlled by the pole head cylinder that controls their lifting and lowering to contact the coil, so as to weld the coil and the electrode plate.

[0019] The material return mechanism includes a workbench for displacement of the placement fixture and a plurality of reset cylinders for driving the placement fixture to move within the workbench. The reset cylinders have four

[0020] The demoulding mechanism includes a demoulding cylinder and a demoulding ejector block connected to the output end thereof. The demoulding ejector block is placed below the workstation, and a workstation opening is provided on the workstation for the ejector block to extend out of.

[0021] The cutting mechanism includes a first hopper for placing electrode plates and a second hopper for placing finished products, as well as a manipulator and a cutting die. The manipulator is used to place the electrode plates in the first hopper on a fixture and to deliver the spot-welded electrode plates to the cutting die.

[0022] After the cutting die cuts the electrode plate, the robot sends it to the second silo.

[0023] The present invention is further configured as follows: a box motor for driving the displacement of the box body is provided on the frame, an output end of the box motor is connected to a first screw module, the box body is connected to a slide seat fixed on the ball bearing, a tongue is provided on the outer wall of the slide seat, a displacement sensor is provided on the side wall of the first screw module, and the displacement sensor is placed on the movable path of the tongue.

[0024] The peeling tool is rotatably connected to the box body, the tool drive motor is placed outside the box body, the output end of the tool drive motor is connected to the driving wheel, and a transmission wheel is provided on the outer peripheral wall of the peeling tool. The driving wheel and the transmission wheel are connected by a belt so that the tool drive motor drives the peeling tool to rotate relative to the box body.

[0025] The present invention is further configured as follows: the wire drawing machine includes a wire drawing motor and a wire drawing cylinder, the output end of the wire drawing motor is connected to the second screw module, the wire drawing cylinder is connected to the slide seat of the second screw module through its mounting seat, the output end of the wire drawing cylinder is connected to a clamping plate, and a clamping space for the wire to pass through is formed between the mounting seat and the clamping plate, the clamping plate is driven by the wire drawing cylinder to squeeze the wire onto the mounting seat, and the wire drawing motor drives the wire drawing cylinder to move to carry the wire for feeding.

[0026] The present invention is further configured as follows: the manipulator includes an arm, a lifting cylinder and a drive motor, the output end of the drive motor is connected to the third screw module, the output end of the lifting cylinder is connected to the arm, the lifting cylinder is connected to the slide of the third screw module through a connecting piece, the drive motor controls the arm to move along the X-axis direction, and the lifting cylinder drives the arm to move along the Y-axis direction.

[0027] The arm is provided with a suction piece, the suction piece is provided with a plurality of suction heads, a cavity is provided in the suction piece, the suction heads are communicated with the cavity, the suction piece is connected with an air pipe, and the air pipe is connected to the vacuum machine.

[0028] The present invention is further configured as follows: the first silo includes a first chassis and a first socket placed on a second chassis, the first socket is provided with a plug-in plate for inserting an electrode plate, a guide rail is further provided at the bottom of the first chassis, the first chassis and the guide rail are slidably connected, a chassis cylinder is provided on the frame, and an output end of the chassis cylinder is connected to the first chassis;

[0029] The second silo includes a second chassis and a second socket on the second chassis, and the second socket is provided with an insertion rod for inserting finished products.

[0030] The present invention is further configured as follows: the cutting mold includes a mold frame, an upper mold body and a lower mold body, a material box for receiving waste materials is provided on the bottom of the mold frame, a stamping cylinder is provided on the top of the mold frame, the output end of the stamping cylinder is connected to the upper mold body, a stamping station for placing the electrode plate is provided on the lower mold body, and a plurality of drop openings for waste materials to fall into the material box are opened on the stamping station, a push column is provided on the upper mold body corresponding to the position of the coil on the electrode plate, and a punch for cutting off the pin line is provided on the upper mold body, and the punch is arranged on the side of the push column so that when the punch cuts the pin line, the push column and the coil conflict.

[0031] The present invention is further configured to include: a winding control module that controls the speed of the winding motor and the wire tension in real time through a load prediction and automatic tension adjustment unit to ensure accuracy during the winding process;

[0032] The paint stripping control module controls the scale and depth of paint stripping based on current fluctuations and data fed back by the visual acquisition unit, ensuring depth uniformity and quality stability during the paint stripping process;

[0033] The spot welding control module monitors the welding temperature and pressure in real time and adopts a dynamic control strategy to ensure the stability of the spot welding process.

[0034] The present invention is further configured such that the load prediction includes a load prediction model that receives the motor current, wire tension, and coil diameter through an LSTM network and outputs a load prediction value at the next moment:

[0035]

[0036] in, is the motor current, is the wire tension, is the coil diameter,

[0037] And the attention mechanism is introduced on the basis of LSTM:

[0038]

[0039] in, For the moment The attention weight indicates the importance of the feature at that moment; For the moment Finally, the load forecasting model is optimized through the Q-learning algorithm, so that the system can automatically adjust the model parameters according to environmental feedback.

[0040] The present invention is further configured as follows: the paint stripping control module uses an SVR model to capture the nonlinear changes between current and depth, the visual data uses an image processing algorithm to obtain the depth characteristics of the paint stripping area and combines it with current fluctuation data to predict the paint stripping depth, and the current data and visual image data are used as input features. A multi-input neural network is used to jointly learn them to predict the final paint stripping depth.

[0041] Compared with the shortcomings of the prior art, the beneficial effects of the present invention are:

[0042] In traditional production, winding, paint stripping, spot welding, and cutting often require multiple devices or production lines to complete separately, resulting in problems such as poor process integration, manual handling, and repeated clamping. This invention integrates these functions into a single device. The workpiece can be clamped once using an automated fixture and multi-station transport system to complete all manufacturing steps, significantly shortening production time and improving production efficiency.

[0043] The programmable multi-axis system, adjustable paint stripping tool, and adjustable electrode pressure allow for rapid adaptation to varying wire diameters, electrode plate sizes, and winding counts, providing excellent flexibility and scalability. Process parameters can be easily switched or modified within the software for varying production batches and specifications, meeting the demands of stable production in both small and large batches of diverse products. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 Schematic diagram of the three-dimensional structure of the present invention Figure 1 ;

[0045] Figure 2 Schematic diagram of the three-dimensional structure of the present invention Figure 2 .

[0046] Figure 3 Schematic diagram of the three-dimensional structure of the present invention Figure 3 ;

[0047] Figure 4 Schematic diagram of the three-dimensional structure of the present invention Figure 4 .

[0048] Frame 1, wire feeding mechanism 2, wire stripping mechanism 3, winding mechanism 4, spot welding mechanism 5, material return mechanism 6, demoulding mechanism 7, unwinding machine 21, wire stripping tool 31, box 32, tool drive motor 33, material receiving platform 41, upper cutting die 42, lower cutting die 43, winding cutter 44, upper pole head 51, lower pole head 52, storage fixture 53, work station 61, reset cylinder 62, demoulding cylinder 71, demoulding top block 72, cutting mechanism 8, mold frame 81, upper mold body 82, lower mold body 83, manipulator 9, arm 91, lifting cylinder 92 drive motor 93, first silo 10, second silo 11. DETAILED DESCRIPTION

[0049] Reference Figures 1 to 4 The coil winding, paint stripping and spot welding all-in-one machine of the present invention is further described.

[0050] The utility model comprises a frame 1 and a wire feeding mechanism 2, a wire stripping mechanism 3, a wire winding mechanism 4, a spot welding mechanism 5, a material returning mechanism 6, a demoulding mechanism 7 and a cutting mechanism 8 arranged on the frame.

[0051] The wire feeding mechanism 2 is the starting point of the process, responsible for taking the wire from the reel and sending it to the subsequent process. It mainly consists of an unwinder 21, a wire drawing machine 22 and a tension closed-loop control module.

[0052] Wire drawing machine 22: Used to pull the wire forward. The wire drawing machine 22 comprises a wire drawing motor 221 and a wire drawing cylinder 223. The output end of the wire drawing motor 221 is connected to the second screw module 222, while the wire drawing cylinder 223 is connected to the slide of the second screw module 222 via its mounting base 225. A pressure plate 224 is connected to the output end of the wire drawing cylinder 223. A compression space is formed between the mounting base 225 and the pressure plate 224 for the wire to pass through. Driven by the wire drawing cylinder 223, the pressure plate 224 steadily presses the wire onto the mounting base 225, effectively clamping the wire. The wire drawing motor 221 drives the second screw module 222, carrying the wire drawing cylinder 223 and the mounting base 225 (and the clamped wire) along the X-axis, achieving precise feeding of the wire. This screw-cylinder combined feeding method balances speed and clamping stability.

[0053] The tension closed-loop control module is key to ensuring stable wire tension during transmission. It monitors wire tension in real time using a magnetic encoder (typically mounted on a tension roller or floating guide pulley). The tension closed-loop control module receives the encoder signal, compares it with the set tension, and dynamically adjusts the rotation speed of the unwinder 21 and the feed rate of the wire drawing machine 22. This module incorporates a built-in load prediction model. Using an advanced LSTM network, it receives the current signal from the wire drawing motor 221, the wire tension measured by the magnetic encoder, and the coil diameter calculated based on the number of revolutions of the unwinder 21 to predict the load at the next moment. Building on the LSTM, an attention mechanism is introduced to calculate the attention weight of the current input. This weight reflects the importance of the current data to the next moment's prediction, enabling the model to better detect abnormalities such as sudden tension changes. Finally, the load prediction model is optimized online using a Q-learning algorithm, enabling the system to automatically adjust model parameters based on actual operating environment feedback, further improving tension prediction accuracy. This allows for more effective control of the unwinder 21 and wire drawing machine 22, ensuring that wire tension remains within the set range and preventing wire breakage and entanglement.

[0054] The wire stripping mechanism 3 is responsible for removing the insulating varnish layer at the end of the wire before it enters the winding. It mainly consists of a wire stripping tool 31, a box 32 and a tool drive motor 33.

[0055] The housing 32 serves as the main structure of the wire stripping mechanism, housing the wire stripping cutter 31. A housing motor 321 is installed on the frame 1 to drive the housing 32. The output of the housing motor 321 is connected to the first screw module 324. The housing 32 is connected to a ball bearing mounted on the slide of the first screw module 324. Displacement sensors are installed on the side walls of the first screw module 324, positioned along its motion path. These sensors monitor the precise position of the housing 32 along the X-axis in real time, ensuring accurate stripping.

[0056] Wire stripping tool 31: Used to strip wire. Wire stripping tool 31 is rotatably connected to housing 32. Wire stripping tool 31 has a working channel for the wire to pass through. A drive wheel 311 is provided on the outer wall of wire stripping tool 31.

[0057] The tool drive motor controls the rotation of the wire stripping tool 31. The tool drive motor is placed outside the housing 32, and its output end is connected to the driving pulley. The driving pulley and the transmission pulley are connected by a belt 333, so that the tool drive motor drives the wire stripping tool 31 to rotate relative to the housing 32.

[0058] Paint stripping control module: This is the key to achieving precise paint stripping. It controls the scale and depth of paint stripping based on the current fluctuations of the tool drive motor and data fed back by the visual acquisition unit (such as images of the paint stripping area). The paint stripping control module uses an SVR model to capture the nonlinear changes between current fluctuations and actual paint stripping depth. After the visual acquisition unit acquires an image of the paint stripping area, it extracts the depth features of the paint stripping area through an image processing algorithm and combines this visual data with the current fluctuation data. The paint stripping control module uses a multi-input neural network to jointly learn current data and visual image data as input features to predict the final paint stripping depth. Based on the prediction results, it adjusts the feed speed of the box motor and the speed of the tool drive motor to ensure depth uniformity and quality stability during the paint stripping process.

[0059] The winding mechanism 4 is responsible for winding the paint-stripped wire into required coil. It mainly comprises a material connection platform 41, an upper cutting die 42, a lower cutting die 43 and a winding cutter 44. The material connection platform 41 receives the paint-stripped wire sent from the stripping mechanism 3.

[0060] The upper and lower cutting dies 42 and 43 are the core components for coil winding. The lower cutting die 43 is equipped with a gripper for gripping the ends of the wire. Both the upper and lower cutting dies 42 and 43 are connected to winding motors that drive their respective rotations. By precisely controlling the synchronous rotation speeds and relative angles of the two motors, the wire is wound around the cutting dies. After winding is complete, the winding cutter 44 cuts the wire, completing the production of a single coil.

[0061] The winding control module receives load predictions from the tension closed-loop control module and feedback from the automatic tension adjustment unit to control the winding motor speed and wire tension in real time. It adjusts the winding speed based on predicted load changes and compensates for tension fluctuations to ensure accurate coil turns, layers, and tightness during the winding process.

[0062] Load prediction includes a load prediction model that receives motor current, wire tension, and coil diameter through an LSTM network and outputs the load prediction value at the next moment:

[0063]

[0064] in, is the motor current, is the wire tension, is the coil diameter,

[0065] And the attention mechanism is introduced on the basis of LSTM:

[0066]

[0067] in, For the moment The attention weight indicates the importance of the feature at that moment; For the moment Finally, the load forecasting model is optimized through the Q-learning algorithm, so that the system can automatically adjust the model parameters according to environmental feedback.

[0068] The spot welding mechanism 5 is responsible for welding the pins of the wound coil to the electrode plate. It mainly includes an upper pole head 51, a lower pole head 52 and a placement fixture 53. The placement fixture 53 is used to place the electrode plate to be welded.

[0069] The upper and lower pole heads 51 and 52 are located above and below the mounting fixture 53. When the coil is placed on the electrode plate on the mounting fixture 53, the upper and lower pole heads 51 and 52 are controlled by the pole cylinders that control their movement, pushing down or lifting them upward until they make contact with the coil pins and the electrode plate. By applying current and pressure, the coil pins are securely welded to the electrode plate.

[0070] The spot welding control module is responsible for controlling the parameters of the welding process. It monitors the welding temperature and pressure in real time and employs a dynamic control strategy. Based on the set welding curve and actual feedback, it precisely controls the welding current, power-on time, and cylinder pressure, ensuring the stability and quality of the spot welding process and preventing cold or over-welding.

[0071] The return mechanism 6 is responsible for returning the spot-welded jig 53 to the workstation where the next electrode plate is prepared, thus enabling jig recycling. It primarily comprises a workstation 61 for the jig 53 to move, and several return cylinders 62 that drive the jig 53 within the workstation 61. The workstation 61 provides a path for the jig 53 to move.

[0072] There are four reset cylinders 62. By coordinating the extension and contraction of these four cylinders, the placement fixture 53 can be accurately driven to move between different stations on the station table 61, for example, from the spot welding station to the demoulding station, and then back to the initial loading station.

[0073] The demolding mechanism 7 is used to eject the spot-welded coil (along with the electrode plate) from the holding fixture 53 for subsequent cutting and sorting. It primarily comprises a demolding cylinder 71 and a demolding ejector block 72 connected to its output end. The ejector block 72 is positioned below the workstation 61.

[0074] The workstation 61 has a station opening 611 through which the demolding block 72 extends. When the placement jig 53 moves to the demolding station and the finished product needs to be removed, the demolding cylinder 71 drives the demolding block 72 to extend upward through the station opening 611, lifting the finished product (electrode plate and welded coil) in the placement jig 53 and freeing it from the constraints of the placement jig 53.

[0075] The cutting mechanism 8 is responsible for cutting the electrode plates after spot welding, the manipulator 9 is responsible for the transportation of materials, and the first silo 10 and the second silo 11 are used to store raw materials and finished products.

[0076] Cutting mechanism 8: includes a mold frame 81, an upper mold body 82 and a lower mold body 83. A material box 84 for receiving waste materials is provided at the bottom of the mold frame 81. A punching cylinder 85 is provided on the top of the mold frame 81, and the output end of the punching cylinder 85 is connected to the upper mold body 82. A stamping station for placing the electrode plate is provided on the lower mold body 83, and a plurality of drop openings for waste materials to fall into the material box 84 are opened on the stamping station. A top column is provided on the upper mold body 82 at the position of the coil on the electrode plate, and a punch for cutting the pin line is provided on the upper mold body 82, and the punch is set on the side of the top column. This design is so that when the punch cuts the pin line, the top column can contact the coil, provide support for cutting and prevent the coil from shifting, thereby improving the cutting accuracy.

[0077] Manipulator 9: It plays an important role in transportation throughout the entire process. It includes an arm 91, a lifting cylinder 92, and a drive motor 93. The output end of the drive motor 93 is connected to the third screw module 931, and the output end of the lifting cylinder 92 is connected to the arm 91. The lifting cylinder 92 is connected to the slide of the third screw module through a connector. The drive motor 93 controls the displacement of the arm 91 along the X-axis, and the lifting cylinder 92 drives the arm 91 to displace along the Y-axis. Through the combination of XY-axis movements, the manipulator 9 can accurately reach different positions within the plane. An adsorption part 94 is provided on the arm 91, and a number of adsorption heads 941 are provided on the adsorption part 94. There is a cavity inside the adsorption part 94, and an air pipe is connected to the adsorption part 94. The air pipe is connected to the vacuum machine. The vacuum machine generates negative pressure, which passes through the air pipe and the cavity, allowing the adsorption head to grab the electrode plate or finished product by vacuum adsorption.

[0078] The primary task of the robot 9 is to accurately place the electrode plates in the first hopper 10 onto the holding fixture 53. Next, when the spot welding mechanism 5 completes welding, the demolding mechanism 7 lifts the finished product. The robot 9 then grabs the spot-welded electrode plates from the holding fixture 53 and delivers them to the stamping station 832 of the cutting die 8 for cutting.

[0079] Finally, when the cutting die 8 completes cutting of the electrode sheet (cuts off the lead wires), the robot 9 grabs the finished product again and sends it to the second silo 11 for sorting or storage.

[0080] The first silo 10 is used to store electrode plates to be processed. It includes a first chassis 103 and a first socket 101 placed on the first chassis 103. The first socket 101 is provided with an insert 102 for inserting electrode plates, which can facilitate the stacking of multiple layers of electrode plates. The bottom of the first chassis 103 is also provided with a guide rail, and the first chassis 103 and the guide rail are slidably connected. A chassis cylinder is provided on the frame 1, and the output end of the chassis cylinder is connected to the first chassis. By extending and retracting the chassis cylinder, the first silo 10 can be moved along the guide rail, making it convenient for the robot 9 to remove materials or manually replenish materials.

[0081] The second silo 11 is used to store finished coils. It includes a second chassis 111 and a second socket 112 on the second chassis 111. The second socket 112 is provided with a plug-in rod 113 for inserting finished coils. The finished coils can be positioned and stacked by the plug-in rod 113.

[0082] The winding control module 45 , the paint stripping control module 34 , the spot welding control module 55 , etc. communicate with the main control PLC or industrial PC via an industrial bus (such as EtherCAT or Profinet).

[0083] The tension closed-loop control module 23 of the wire feeding mechanism 2 feeds back the real-time wire tension and load prediction results to the winding control module 45 to guide the synchronous adjustment of the winding speed and tension.

[0084] The paint stripping control module 34 outputs accurate paint stripping depth instructions to the box motor 321 and the tool drive motor 33 based on the current and visual data.

[0085] The spot welding control module 55 adjusts welding parameters in real time based on temperature and pressure feedback. The robot 9's motion trajectory, suction / release actions (controlling the vacuum machine 944), and the actions of the hoppers 10 / 11, return mechanism 6, and demolding mechanism 7 (controlling the corresponding cylinders) are all coordinated and controlled by the main control system based on the process flow and sensor feedback (such as the displacement sensor 323, the robot 9's in-position sensor, and the spot welding mechanism 5's tip position sensor), ensuring the smooth and efficient operation of the entire automated process.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A coil winding, paint stripping and spot welding all-in-one machine, characterized in that: Consists of a rack and mounted on the rack: The wire feeding mechanism includes an unwinder, a wire drawing machine, and a tension closed-loop control module. The tension closed-loop control module monitors the wire tension in real time through a magnetic encoder and dynamically adjusts the matching relationship between the unwinding speed and the wire drawing speed. The wire stripping mechanism includes a wire stripping tool, a box body and a tool drive motor. The wire stripping tool is placed in the box body. The tool drive motor controls the wire stripping tool to strip the wire. The wire stripping tool has a working channel for the wire to pass through. The winding mechanism includes a material receiving platform, an upper cutting die, a lower cutting die and a winding cutter. The lower cutting die is provided with a clamping hand for clamping the wire. The upper cutting die and the lower cutting die are both connected to a winding motor that drives each to rotate in order to complete the winding of the coil. The spot welding mechanism includes an upper pole head, a lower pole head and a placement fixture. The upper pole head and the lower pole head are located on the upper and lower sides of the placement fixture. The placement fixture is used to place the electrode plate. When the coil on the material receiving platform is sent to the electrode plate, the upper pole head and the lower pole head are controlled by the pole head cylinder that controls their lifting and lowering to contact the coil, so as to weld the coil and the electrode plate. The material return mechanism includes a workbench for displacement of the placement fixture and a plurality of reset cylinders for driving the placement fixture to move within the workbench. The reset cylinders have four The demoulding mechanism includes a demoulding cylinder and a demoulding ejector block connected to the output end thereof. The demoulding ejector block is placed below the workstation, and a workstation opening is provided on the workstation for the ejector block to extend out of. The cutting mechanism includes a first hopper for placing electrode plates and a second hopper for placing finished products, as well as a manipulator and a cutting die. The manipulator is used to place the electrode plates in the first hopper on a fixture and to deliver the spot-welded electrode plates to the cutting die. After the cutting die cuts the electrode plate, the robot sends it to the second silo.

2. The coil winding, paint stripping and spot welding all-in-one machine according to claim 1, characterized in that: The frame is provided with a box motor for driving the displacement of the box body, the output end of the box motor is connected to the first screw module, the box body is connected to a slide fixed on the ball bearing, a tongue is provided on the outer wall of the slide, a displacement sensor is provided on the side wall of the first screw module, and the displacement sensor is placed on the active path of the tongue. The peeling tool is rotatably connected to the box body, the tool drive motor is placed outside the box body, the output end of the tool drive motor is connected to the driving wheel, and a transmission wheel is provided on the outer peripheral wall of the peeling tool. The driving wheel and the transmission wheel are connected by a belt so that the tool drive motor drives the peeling tool to rotate relative to the box body.

3. The coil winding, paint stripping and spot welding all-in-one machine according to claim 2, characterized in that: The wire drawing machine includes a wire drawing motor and a wire drawing cylinder. The output end of the wire drawing motor is connected to the second screw module. The wire drawing cylinder is connected to the slide seat of the second screw module through its mounting seat. The output end of the wire drawing cylinder is connected to a clamping plate. A clamping space for the wire to pass through is formed between the mounting seat and the clamping plate. The clamping plate is driven by the wire drawing cylinder to squeeze the wire onto the mounting seat. When the wire drawing motor drives the wire drawing cylinder to move, it carries the wire for feeding.

4. The coil winding, paint stripping and spot welding all-in-one machine according to claim 2, characterized in that: The manipulator includes an arm, a lifting cylinder and a drive motor. The output end of the drive motor is connected to the third screw module, and the output end of the lifting cylinder is connected to the arm. The lifting cylinder is connected to the slide of the third screw module through a connecting piece. The drive motor controls the arm to move along the X-axis direction, and the lifting cylinder drives the arm to move along the Y-axis direction. The arm is provided with a suction piece, the suction piece is provided with a plurality of suction heads, a cavity is provided in the suction piece, the suction heads are communicated with the cavity, the suction piece is connected with an air pipe, and the air pipe is connected to the vacuum machine.

5. The coil winding, paint stripping and spot welding all-in-one machine according to claim 2, characterized in that: The first silo includes a first chassis and a first socket placed on a second chassis, the first socket is provided with a plug-in plate for inserting the electrode plate, a guide rail is further provided at the bottom of the first chassis, the first chassis and the guide rail are slidably connected, a chassis cylinder is provided on the frame, and the output end of the chassis cylinder is connected to the first chassis; The second silo includes a second chassis and a second socket on the second chassis, and the second socket is provided with an insertion rod for inserting finished products.

6. The coil winding, paint stripping and spot welding all-in-one machine according to claim 2, characterized in that: The cutting mold includes a mold frame, an upper mold body and a lower mold body. A material box for receiving waste materials is provided on the bottom of the mold frame, and a stamping cylinder is provided on the top of the mold frame. The output end of the stamping cylinder is connected to the upper mold body. A stamping station for placing the electrode plate is provided on the lower mold body. The stamping station is provided with a plurality of drop openings for waste materials to fall into the material box. A push column is provided on the upper mold body at the position of the coil on the electrode plate. A punch for cutting off the pin line is provided on the upper mold body. The punch is set on the side of the push column so that when the punch cuts the pin line, the push column and the coil collide with each other.

7. A control system for a coil winding, paint stripping and spot welding all-in-one machine, characterized in that: include: The winding control module controls the speed of the winding motor and the wire tension in real time through load prediction and automatic tension adjustment units to ensure accuracy during the winding process; The paint stripping control module controls the scale and depth of paint stripping based on current fluctuations and data fed back by the visual acquisition unit, ensuring depth uniformity and quality stability during the paint stripping process; The spot welding control module monitors the welding temperature and pressure in real time and adopts a dynamic control strategy to ensure the stability of the spot welding process.

8. The control system of the coil winding, paint stripping and spot welding all-in-one machine according to claim 7, characterized in that: The load prediction includes a load prediction model that receives motor current, wire tension, and coil diameter through an LSTM network and outputs the load prediction value at the next moment: ， in, is the motor current, is the wire tension, is the coil diameter, And the attention mechanism is introduced on the basis of LSTM: ， in, For the moment The attention weight indicates the importance of the feature at that moment; For the moment Finally, the load forecasting model is optimized through the Q-learning algorithm, so that the system can automatically adjust the model parameters according to environmental feedback.

9. The control system of the coil winding, paint stripping and spot welding all-in-one machine according to claim 8, characterized in that: The paint stripping control module uses an SVR model to capture the nonlinear changes between current and depth. Visual data uses an image processing algorithm to obtain the depth characteristics of the paint stripping area and combines them with current fluctuation data to predict the paint stripping depth. Current data and visual image data are used as input features and are jointly learned using a multi-input neural network to predict the final paint stripping depth.

Images