A wire harness winding apparatus for processing an automobile wire harness and a method of using the same

Abstract

This invention relates to the field of automotive wire harness processing technology, and more particularly to a wire harness winding device and its method for processing automotive wire harnesses. The device includes a worktable, on which a guiding mechanism, a tensioning mechanism, a winding mechanism, and a take-up roller are sequentially arranged. The guiding mechanism includes a movable plate movably mounted on the worktable. This invention uses a hand-tightened screw to drive a moving frame, which in turn engages a pressure roller and a support roller to actively apply appropriate pressure to the wire harness. Combined with the take-up roller's winding tension, this achieves stable tension of the wire harness. Simultaneously, a spring between the slider and the tensioning frame provides auxiliary buffering, maintaining consistent tension throughout the winding process. A cylinder drives a drive frame to move a transmission block, which, in conjunction with a transmission rod and a long, narrow limiting hole, brings the limiting roller close to the wire harness for clamping. A pressure sensor monitors the clamping force of the limiting roller on the wire harness in real time, enabling precise control and real-time monitoring of the clamping force.

Description

Technical Field

[0001] This invention relates to the field of automotive wiring harness processing technology, and in particular to a wiring harness winding device and its method for processing automotive wiring harnesses. Background Technology

[0002] Automotive wiring harness winding is a process that involves wrapping and bundling multiple wires and cables with materials such as tape and corrugated tubing according to a specific process to form a neat wiring harness, achieving insulation protection, anti-interference, and neat wiring.

[0003] Under current conditions, a common method for processing automotive wiring harnesses is a wire harness winding device, as disclosed in CN222762714U. This device includes a base plate with a support plate, and a rotating winding mechanism and a rolling limiting mechanism mounted on the support plate. This device can clamp and limit the wire harness without affecting its passage, preventing it from shifting due to the rotation and pulling of the tape, thus ensuring the winding quality. However, the tension of this device relies on the wire harness's own tension and the spring friction of the rollers. This makes it difficult to effectively suppress loosening and slippage caused by slack during winding, affecting the reliability of the winding. Furthermore, the roller clamping force relies solely on the passive adaptation of the springs, making precise control and real-time monitoring impossible for different wire harness sizes and process requirements. Long-term use can lead to spring fatigue and relaxation, resulting in decreased or unstable clamping force. When dealing with large-diameter wire harnesses, excessive support force may damage the insulation layer, while insufficient clamping can still cause tape pull and shifting when processing small-diameter wire harnesses, affecting winding accuracy and quality. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of poor tension stability, inaccurate control and monitoring of clamping force, and easy loosening or damage to the insulation layer in existing automotive wiring harness winding equipment. Therefore, this invention proposes a wiring harness winding device and its usage method for processing automotive wiring harnesses.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A wire harness winding device for processing automotive wire harnesses includes a worktable. A guiding mechanism, a tensioning mechanism, a winding mechanism, and a take-up roller are sequentially arranged on the worktable. The guiding mechanism includes a movable plate movably mounted on the worktable, on which a guide roller for laterally limiting the wire harness is rotatably mounted. The tensioning mechanism includes a tensioning frame fixedly mounted on the worktable, on which a pressure roller and a support roller, cooperating with the take-up roller to tension the wire harness, are movably arranged. The winding mechanism includes a fixed frame fixedly mounted on the worktable, on which multiple circumferentially distributed limiting rollers for limiting the wire harness are movably arranged. A drive frame for driving the limiting rollers to clamp the wire harness is movably arranged on the fixed frame. A movable ring frame is rotatably mounted on the fixed frame, on which a roll of tape for providing winding material to the wire harness is rotatably mounted.

[0006] Preferably, the guiding mechanism further includes a fixed block fixedly installed on the workbench, a rotating rod fixedly connected to the movable plate is rotatably installed on the fixed block, and a hand-tightening bolt for fixing the rotating rod is threadedly connected to the fixed block.

[0007] Preferably, the fixing block has a cylindrical receiving groove, and the rotating rod is vertically arranged in the receiving groove.

[0008] Preferably, the tensioning mechanism further includes a movable frame and two sliders slidably sleeved within the tensioning frame, a support roller rotatably mounted between the two sliders, a spring welded between the slider and the tensioning frame, two mounting blocks fixedly mounted on the movable frame, a pressure roller rotatably mounted between the two mounting blocks, and a hand-tightening screw threadedly connected to the tensioning frame for driving the movable frame to move.

[0009] Preferably, the movable frame has a concave structure, and guide blocks extending to the tensioning frame are fixedly installed on both sides of the movable frame.

[0010] Preferably, the winding mechanism further includes a drive block slidably sleeved within the fixed frame and used to adjust the clamping force of the limiting roller. A moving rod is slidably sleeved on the drive block. A pressure frame is fixedly installed at the upper end of the moving rod. The limiting roller is rotatably installed on the pressure frame. A second spring that cooperates with the moving rod is welded between the pressure frame and the drive block. A detection frame is fixedly installed at the lower end of the drive block. A pressure sensor that moves against the lower end of the moving rod is fixedly installed on the detection frame. A transmission block that is slidably sleeved on the fixed frame and is connected to the drive block is fixedly installed. A cylinder for driving the drive frame to move is fixedly installed on the fixed frame.

[0011] Preferably, transmission rods are fixedly installed on both sides of the drive block, and the transmission block is provided with elongated limiting holes that cooperate with the transmission rods, and the elongated limiting holes are inclined.

[0012] Preferably, two symmetrically arranged guide rods are fixedly installed inside the fixed frame, and a movable block integrally connected to the transmission rod is slidably sleeved on the guide rod.

[0013] Preferably, the transmission block has a concave structure, and the driving block is sleeved inside the transmission block.

[0014] Regarding the method of using the above-mentioned wire harness winding device for processing automotive wire harnesses, the method includes the following steps: Step S1: Based on the outer diameter of the automotive wiring harness to be processed, turn the hand-tightening bolt to loosen the rotating rod, and turn the movable plate to adjust the distance between the two guide rollers. After adjustment, tighten the hand-tightening bolt to fix the rotating rod so that the guide roller can adapt to the lateral limit of the wiring harness. At the same time, turn the hand-tightening screw to drive the moving frame to move downward. The moving frame drives the pressure roller to move downward through the mounting block so that the pressure roller cooperates with the support roller, leaving a gap to adapt to the diameter of the wiring harness. Step S2: Pass one end of the automotive wiring harness to be wound between two guide rollers, guide it through the pressure roller and the support roller, then pass it through the limiting rollers in the fixed frame, and finally fix it on the take-up roller. Step S3: Turn the hand screw again to drive the moving frame to continue moving downward, so that the pressure roller exerts downward pressure on the wire harness. Combined with the winding pull of the take-up roller, and with the support roller, the wire harness is compressed and tightened. At the same time, the slider slides in the tensioning frame, and the spring deforms under force to help maintain the stable tension of the wire harness. Step S4: The controller starts the cylinder, which drives the drive frame to move. The drive frame drives the transmission block to move synchronously. The elongated limiting hole on the transmission block cooperates with the inclined surface of the transmission rod on both sides of the drive block to drive the drive block to move towards the center of the fixed frame. The drive block drives the pressure frame to move upward through the second spring. The pressure frame drives the limiting roller to approach the edge of the wire harness to limit the wire harness. In step S5, as the limiting roller approaches the wire harness, the second spring deforms under force, causing the moving rod to slide on the drive block and apply pressure to the pressure sensor. The pressure sensor monitors the clamping force in real time. When the clamping force reaches the preset threshold for the wire harness size, the cylinder stops working, thus achieving stable limiting of the current size wire harness. At the same time, the moving block on the guide rod slides synchronously with the transmission rod, ensuring that the drive block moves smoothly. Step S6: Install the wrapping tape roll on the movable ring frame, pull out one end of the tape roll and fix it on the wire harness to be wrapped, ensuring that the tape roll and the wire harness are tightly adhered; Step S7: The controller starts the take-up roller. The take-up roller rotates slowly and winds up the wire harness at a uniform speed. During the winding process, the wire harness is guided by the guide roller to prevent left and right deviation, kept taut by the pressure roller and the support roller, and limited by the limit roller to prevent shaking. In step S8, the controller synchronously starts the servo motor, which drives the movable ring frame to rotate around the fixed frame, causing the tape roll on it to rotate synchronously. During the rotation of the tape roll, the wire harness surface is continuously and evenly wound. During the winding process, the pressure sensor continuously monitors the clamping force of the limit roller. If the clamping force deviates from the preset range, the controller controls the cylinder to finely adjust the position of the drive frame in real time to ensure the winding accuracy. Step S9: When the wire harness winding length reaches the preset requirement, the controller stops the operation of the take-up roller and the servo motor, cuts the tape and fixes its end to the wound wire harness to complete the winding operation of a single segment of wire harness.

[0015] Compared with the prior art, the present invention has the following advantages: 1. This invention uses a hand-tightened screw to drive the moving frame, which in turn drives the pressure roller and the support roller to work together. This allows for the active application of appropriate pressure to the wire harness. Combined with the winding tension of the take-up roller, this achieves stable tension of the wire harness. At the same time, the spring between the slider and the tensioning frame can provide additional buffering, maintaining consistent tension of the wire harness throughout the winding process. This effectively prevents loosening and slippage caused by slack winding, ensuring winding reliability.

[0016] 2. This invention uses a cylinder to drive the drive frame, which in turn moves the transmission block. This, combined with the transmission rod and the elongated limiting hole, moves the drive block and the pressure frame, causing the limiting roller to come close to the wire harness for clamping. The pressure sensor can monitor the clamping force of the limiting roller on the wire harness in real time. When the clamping force reaches the preset value, the cylinder stops working, achieving precise control and real-time monitoring of the clamping force. This allows it to adapt to wire harnesses of different diameters and diverse process requirements. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a wire harness winding device for processing automotive wire harnesses proposed in this invention; Figure 2 This is a cross-sectional view of a tensioning frame for a wire harness winding device for processing automotive wire harnesses, as proposed in this invention. Figure 3 This is a cross-sectional view of a fixing block of a wire harness winding device for processing automotive wire harnesses, as proposed in this invention. Figure 4 This is a top sectional view of a fixing frame for a wire harness winding device for processing automotive wire harnesses, as proposed in this invention. Figure 5 This is a schematic diagram of a limiting roller for a wire harness winding device for processing automotive wire harnesses, as proposed in this invention. Figure 6 This is a side sectional view of a fixing frame for a wire harness winding device for processing automotive wire harnesses, as proposed in this invention. Figure 7This is a side sectional view of the transmission block of a wire harness winding device for processing automotive wire harnesses, as proposed in this invention. Figure 8 This is a top sectional view of the transmission block of a wire harness winding device for processing automotive wire harnesses, as proposed in this invention.

[0018] In the diagram: 1. Workbench; 2. Tensioning frame; 3. Slider; 4. Spring 1; 5. Support roller; 6. Moving frame; 7. Mounting block; 8. Pressure roller; 9. Hand-tightening screw; 10. Fixing block; 11. Rotating rod; 12. Movable plate; 13. Guide roller; 14. Hand-tightening bolt 1; 15. Fixing frame; 16. Movable ring frame; 17. Pressure frame; 18. Limiting roller; 19. Drive block; 20. Moving rod; 21. Spring 2; 22. Detection frame; 23. Pressure sensor; 24. Transmission block; 25. Cylinder; 26. Drive frame; 27. Long strip-shaped limiting hole; 28. Transmission rod; 29. ​​Guide rod; 30. Moving block; 31. Take-up roller. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figures 1-8 A wire harness winding device for processing automotive wire harnesses includes a workbench 1. The workbench 1 is equipped with a controller electrically connected to a servo motor, a pressure sensor 23, a cylinder 25, and a take-up roller 31. The workbench 1 is sequentially equipped with a guiding mechanism, a tensioning mechanism, a winding mechanism, and a take-up roller 31. The mechanisms are arranged in an orderly manner along the length of the workbench 1 to form a complete processing flow of the wire harness from guiding, tensioning, winding to take-up. The take-up roller 31 is rotatably mounted on a bracket at the end of the workbench 1 via bearings and can be driven by the servo motor to rotate at a uniform speed to realize the orderly take-up operation of the wire harness.

[0021] The guiding mechanism is used to laterally limit and guide the wire harness, preventing it from shifting left or right during transmission and ensuring that the wire harness can accurately enter subsequent mechanisms. It includes a movable plate 12 movably mounted on the worktable 1 and a fixed block 10 fixedly mounted on the worktable 1. The movable plate 12 preferably adopts a rectangular metal plate structure and is slidably set to fit the surface of the workbench 1. A guide roller 13 for lateral limiting of the wire harness is rotatably mounted on the movable plate 12. The guide roller 13 is connected to the movable plate 12 through a bearing and can rotate flexibly to reduce frictional damage to the surface of the wire harness. In addition, a rubber anti-slip sleeve can be fitted on the surface of the guide roller 13 to further improve the limiting effect of the wire harness and prevent the wire harness from sliding.

[0022] The fixing block 10 preferably adopts a block metal structure and is fixedly connected to the workbench 1 by bolts. The connection is firm and not easy to loosen. A cylindrical receiving groove is provided on the fixing block 10. The cylindrical receiving groove is coaxially arranged with the fixing block 10. The groove wall is smooth, which facilitates the rotation and installation of internal components.

[0023] The rotating rod 11 is vertically installed in the receiving groove. The outer diameter of the rotating rod 11 is matched with the inner diameter of the receiving groove, allowing it to rotate flexibly within the receiving groove. The top of the rotating rod 11 is fixedly connected to the bottom of the movable plate 12. When the rotating rod 11 rotates, it can synchronously drive the movable plate 12 to rotate, thereby adjusting the angle and position of the guide roller 13 to adapt to wire harnesses of different specifications and transmission directions.

[0024] The fixing block 10 is threaded with a hand-tightening bolt 14 for fixing the rotating rod 11. The hand-tightening bolt 14 is horizontally set, and its screw end extends into the receiving groove and abuts against the outer wall of the rotating rod 11.

[0025] After the position of the guide roller 13 is adjusted, tighten the hand-tightening bolt 14 to fix the position of the rotating rod 11 by using the friction between the screw and the rotating rod 11, thereby fixing the movable plate 12 and the guide roller 13. This ensures that the guiding mechanism remains stable during operation and avoids the guide roller 13 from shifting due to equipment vibration, which would affect the wire harness guiding effect. When it is necessary to adjust the position of the guide roller 13, simply loosen the hand-tightening bolt 14 to rotate the rotating rod 11. The operation is convenient and does not require special tools.

[0026] The tensioning mechanism is used to apply stable tension to the wire harness, ensuring that the wire harness remains taut during the winding process, avoiding problems such as slackness and wrinkles, and ensuring winding accuracy. It includes a tensioning frame 2 fixedly installed on the workbench 1, a movable frame 6 slidably sleeved in the tensioning frame 2, and two sliders 3. The tensioning frame 2 adopts a frame-type metal structure and is fixedly connected to the workbench 1 by bolts. The structure is stable and can withstand the force generated during the tensioning of the wire harness.

[0027] The tensioning frame 2 is movably equipped with a pressure roller 8 and a support roller 5 that cooperate with the take-up roller 31 to tension the wire harness. The pressure roller 8 and the support roller 5 are arranged vertically and vertically, and the wire harness passes through the space between them. By adjusting the distance between the pressure roller 8 and the support roller 5, and in conjunction with the winding tension of the take-up roller 31, the wire harness is tightened. Both rollers are rotatably mounted via bearings and can rotate synchronously with the transmission of the wire harness, which helps to reduce wear on the wire harness.

[0028] Both the movable frame 6 and the slider 3 are made of metal, ensuring smooth sliding and preventing jamming.

[0029] The movable frame 6 has a concave structure. Guide blocks extending to the tension frame 2 are fixedly installed on both sides of the movable frame 6. The guide blocks are adapted to the guide grooves opened on the tension frame 2, which guide and limit the up and down sliding of the movable frame 6, ensuring that the movable frame 6 always remains vertical during the movement, avoiding tilting, and thus ensuring that the pressure of the pressure roller 8 is evenly applied to the wire harness.

[0030] The support roller 5 is rotatably mounted between two sliders 3. The two sliders 3 are symmetrically arranged on both sides of the tensioning frame 2. A spring 4 is welded between the sliders 3 and the tensioning frame 2. The spring 4 has a good elastic reset function. When the diameter of the wire harness changes slightly or the equipment vibrates during operation, the spring 4 can undergo elastic deformation, causing the sliders 3 to slide up and down, thereby adjusting the position of the support roller 5, buffering the tension fluctuations of the wire harness, and helping to maintain the stable tension of the wire harness, avoiding excessive tension that could damage the wire harness or insufficient tension that could cause the wire harness to loosen.

[0031] Two mounting blocks 7 are fixedly installed on the movable frame 6. The two mounting blocks 7 are symmetrically arranged at the lower end of the movable frame 6, and the spacing is adapted to the length of the pressure roller 8. The pressure roller 8 is rotatably installed between the two mounting blocks 7, which is secure and flexible.

[0032] The tensioning frame 2 is threadedly connected to a hand-tightening screw 9 for driving the movement of the movable frame 6. The hand-tightening screw 9 is vertically set, with its top end extending above the tensioning frame 2 and fixedly installed with a hand-tightening knob for easy manual adjustment by the operator. The bottom end of the hand-tightening screw 9 is rotatably connected to the top of the movable frame 6. When the hand-tightening screw 9 is rotated, the movable frame 6 is driven up and down by the threaded transmission, thereby adjusting the height of the pressure roller 8, changing the distance between the pressure roller 8 and the support roller 5, adapting to wire harnesses of different diameters, and adjusting the tension of the wire harness at the same time. The operation is convenient and the adjustment accuracy is high.

[0033] The winding mechanism is the core mechanism for realizing wire harness winding operations. It is used to drive the tape roll to rotate around the wire harness to achieve uniform winding of the tape. It includes a fixed frame 15 fixedly installed on the workbench 1 and a drive block 19 slidably sleeved in the fixed frame 15 for adjusting the clamping force of the limit roller 18. The fixed frame 15 adopts a ring frame metal structure and is fixedly connected to the workbench 1 by bolts. The structure is stable and provides stable installation support for the internal components.

[0034] Multiple circumferentially distributed limiting rollers 18 are movably arranged on the fixed frame 15 for limiting the wire harness. The multiple limiting rollers 18 are evenly distributed along the circumference of the fixed frame 15 to form a circular limiting channel. The wire harness passes through the limiting channel. The limiting rollers 18 can play a radial limiting role on the wire harness to prevent the wire harness from shaking or deviating during the winding process, and ensure that the tape can be evenly wound on the surface of the wire harness. In addition, the limiting rollers 18 are rotatably installed by bearings and can rotate synchronously with the transmission of the wire harness to reduce frictional damage to the wire harness.

[0035] A drive frame 26 for driving the limiting roller 18 to clamp the wire harness is movably mounted on the fixed frame 15. The drive frame 26 adopts a ring frame structure and is fitted on the outside of the fixed frame 15. It can move flexibly along the axial direction of the fixed frame 15. The position of the limiting roller 18 can be adjusted by moving the drive frame 26 to realize the clamping and releasing of the wire harness.

[0036] The drive block 19 preferably adopts a block metal structure, which is adapted to the guide structure on the fixed frame 15 and can slide flexibly along the radial direction of the fixed frame 15. The number of drive blocks 19 corresponds to the number of limit rollers 18, and each drive block 19 drives one limit roller 18.

[0037] Transmission rods 28 are fixedly installed on both sides of the drive block 19. The transmission rods 28 are horizontally arranged and extend to both sides of the drive block 19 to transmit driving force.

[0038] The transmission block 24 has an elongated limiting hole 27 that cooperates with the transmission rod 28. The elongated limiting hole 27 is inclined, and the end of the transmission rod 28 is slidably sleeved in the elongated limiting hole 27. When the transmission block 24 moves, the axial movement of the transmission block 24 is converted into the radial movement of the drive block 19 by utilizing the cooperation between the elongated limiting hole 27 and the inclined surface of the transmission rod 28, thereby driving the limiting roller 18 to approach or move away from the wire harness.

[0039] Two symmetrically arranged guide rods 29 are fixedly installed inside the fixed frame 15. The guide rods 29 are horizontally arranged and parallel to the sliding direction of the drive block 19. A movable block 30, which is integrally connected to the transmission rod 28, is slidably sleeved on the guide rod 29. The movable block 30 is fixedly connected to the transmission rod 28 and can move synchronously with the transmission rod 28.

[0040] The guide rod 29 guides and limits the moving block 30, ensuring that the moving block 30 and the transmission rod 28 slide smoothly along the guide rod 29, thereby ensuring that the radial movement of the drive block 19 is smooth and stable, preventing the drive block 19 from tilting or jamming, and ensuring that the limiting roller 18 can clamp the wire harness evenly and stably.

[0041] A movable rod 20 is slidably sleeved on the drive block 19. The movable rod 20 is vertically set and can slide flexibly on the drive block 19. A pressure frame 17 is fixedly installed at the upper end of the movable rod 20. The pressure frame 17 is used to install the limiting roller 18. The limiting roller 18 is rotatably installed on the pressure frame 17. When the movable rod 20 slides up and down, it can drive the pressure frame 17 and the limiting roller 18 to move up and down synchronously, further adjusting the position of the limiting roller 18 to adapt to wire harnesses of different diameters.

[0042] A second spring 21, which cooperates with the moving rod 20, is welded between the pressure frame 17 and the drive block 19. The second spring 21 is sleeved on the outside of the moving rod 20 and has a good elastic reset function. When the limiting roller 18 is close to the wire harness, the second spring 21 is squeezed and undergoes elastic deformation, generating a reverse elastic force. On the one hand, it can buffer the clamping force of the limiting roller 18 on the wire harness and avoid excessive clamping force that could damage the wire harness. On the other hand, it can ensure that the limiting roller 18 always fits against the surface of the wire harness, adapting to the slight fluctuations in the diameter of the wire harness and maintaining a stable limiting effect.

[0043] A detection frame 22 is fixedly installed at the lower end of the drive block 19. A pressure sensor 23 is fixedly installed on the detection frame 22 and moves against the lower end of the moving rod 20. The pressure sensor 23 is in close contact with the lower end of the moving rod 20 and can detect the pressure transmitted by the moving rod 20 in real time, thereby indirectly detecting the clamping force of the limit roller 18 on the wire harness.

[0044] The pressure sensor 23 can transmit the detected clamping force data to the controller in real time, so that the controller can monitor and control the clamping force in real time, ensuring that the clamping force is always within the preset range, and adapting to wire harnesses of different diameters and diverse process requirements.

[0045] A transmission block 24, which is connected to the drive block 19, is slidably sleeved on the fixed frame 15. The transmission block 24 has a concave structure, and the drive block 19 is sleeved inside the transmission block 24. The two fit tightly together. When the transmission block 24 moves, it can stably drive the drive block 19 to move through the cooperation of the elongated limiting hole 27 and the transmission rod 28, so as to ensure transmission efficiency and avoid problems such as transmission jamming and failure.

[0046] The transmission block 24 is fixedly installed on the drive frame 26. When the drive frame 26 moves, it can synchronously drive the transmission block 24 to move. A cylinder 25 for driving the drive frame 26 to move is fixedly installed on the fixed frame 15. The cylinder 25 is horizontally set and can extend and retract under the control of the controller, thereby driving the drive frame 26 and the transmission block 24 to move synchronously, realizing the automatic clamping and releasing of the wire harness by the limit roller 18. It has a high degree of automation, reduces the labor intensity of operators, and is precise and efficient in adjustment.

[0047] A movable ring frame 16 is rotatably mounted on the fixed frame 15. The movable ring frame 16 adopts a ring structure and is fitted on the outside of the fixed frame 15. It can rotate flexibly around the axis of the fixed frame 15. The movable ring frame 16 is driven by a servo motor. The servo motor is electrically connected to the controller and can drive the movable ring frame 16 to rotate at a uniform speed under the control of the controller. The speed can be adjusted according to the requirements of the wire harness winding process.

[0048] A tape roll for providing winding material to the wire harness is rotatably mounted on the movable ring frame 16. The tape roll is fitted on the mounting shaft of the movable ring frame 16 and can rotate synchronously with the movable ring frame 16 around the wire harness. At the same time, it can rotate flexibly on its own, which facilitates the pulling out and winding of the tape. The position of the tape roll corresponds to the center of the fixed frame 15, ensuring that the tape can be accurately wound on the surface of the wire harness and achieve uniform winding operation.

[0049] It should be noted that the specific models and specifications of the controller, servo motor, pressure sensor 23, cylinder 25, and take-up roller 31 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technology in this field, so they will not be elaborated here.

[0050] Its functional principle is explained through the following steps: First, according to the outer diameter of the automotive wiring harness to be processed, turn the hand-tightening bolt 14 to loosen the rotating rod 11, turn the movable plate 12 to adjust the distance between the two guide rollers 13, and after the adjustment is completed, tighten the hand-tightening bolt 14 to fix the rotating rod 11 so that the guide rollers 13 can provide lateral limit for the wiring harness. At the same time, turn the hand-tightening screw 9 to drive the moving frame 6 to move downward. The moving frame 6 drives the pressure roller 8 to move downward through the mounting block 7, so that the pressure roller 8 cooperates with the support roller 5, leaving a gap to match the diameter of the wiring harness. The second step is to pass one end of the car wiring harness to be wound between the two guide rollers 13, and after being guided by the guide rollers 13, pass between the pressure roller 8 and the support roller 5, and then pass between the limiting rollers 18 in the fixing frame 15, and finally fix it on the take-up roller 31. Third, turn the hand screw 9 again to drive the moving frame 6 to continue to move down, so that the pressure roller 8 exerts downward pressure on the wire harness. Combined with the winding pull of the take-up roller 31, and the support roller 5, the wire harness is compressed and tightened. At the same time, the slider 3 slides in the tensioning frame 2, and the spring 4 is deformed by force to help maintain the stable tension of the wire harness. Fourth step, the controller starts cylinder 25, cylinder 25 drives drive frame 26 to move, drive frame 26 drives transmission block 24 to move synchronously, the elongated limiting hole 27 on transmission block 24 cooperates with the inclined surface of transmission rod 28 on both sides of drive block 19 to drive drive block 19 to move towards the center of fixed frame 15, drive block 19 drives pressure frame 17 to move upward through spring 21, pressure frame 17 drives limiting roller 18 to approach the edge of wire harness to limit the wire harness; In the fifth step, as the limiting roller 18 approaches the wire harness, the second spring 21 deforms under force, causing the moving rod 20 to slide on the drive block 19 and apply pressure to the pressure sensor 23. The pressure sensor 23 monitors the clamping force in real time. When the clamping force reaches the threshold preset for the wire harness size, the cylinder 25 stops working, achieving stable limiting of the current size wire harness. At the same time, the moving block 30 on the guide rod 29 slides synchronously with the transmission rod 28 to ensure that the drive block 19 moves smoothly. Step 6: Install the wrapping tape roll on the movable ring frame 16, pull out one end of the tape roll and fix it on the wire harness to be wrapped, ensuring that the tape roll and the wire harness are tightly attached; Step 7: The controller starts the take-up roller 31. The take-up roller 31 rotates slowly and winds up the wire harness at a uniform speed. During the winding process, the wire harness is guided by the guide roller 13 to prevent left and right deviation, and is kept taut by the pressure roller 8 and the support roller 5. It is also limited by the limit roller 18 to prevent shaking. Step 8: The controller synchronously starts the servo motor, which drives the movable ring frame 16 to rotate around the fixed frame 15, causing the tape roll on it to rotate synchronously. During the rotation of the tape roll, the wire harness surface is continuously and evenly wound. During the winding process, the pressure sensor 23 continuously monitors the clamping force of the limit roller 18. If the clamping force deviates from the preset range, the controller controls the cylinder 25 to finely adjust the position of the drive frame 26 in real time to ensure the winding accuracy. In the ninth step, when the wire harness winding length reaches the preset requirement, the controller stops the operation of the take-up roller 31 and the servo motor, cuts the tape and fixes its end to the wound wire harness, thus completing the winding operation of a single section of wire harness.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wire harness winding device for processing automotive wire harnesses, comprising a workbench (1), characterized in that, The workbench (1) is sequentially provided with a guiding mechanism, a tensioning mechanism, a winding mechanism, and a take-up roller (31). The guiding mechanism includes a movable plate (12) movably mounted on the workbench (1), and a guide roller (13) for lateral positioning of the wire harness is rotatably mounted on the movable plate (12). The tensioning mechanism includes a tensioning frame (2) fixedly mounted on the workbench (1), and a pressure roller (8) that cooperates with the take-up roller (31) to tension the wire harness and a support are movably mounted on the tensioning frame (2). The winding mechanism includes a fixed frame (15) fixedly mounted on the workbench (1), a plurality of circumferentially distributed limiting rollers (18) for limiting the wire harness are movably arranged on the fixed frame (15), a drive frame (26) for driving the limiting rollers (18) to clamp the wire harness is movably arranged on the fixed frame (15), and a movable ring frame (16) is rotatably mounted on the fixed frame (15), and a roll of tape for providing winding material to the wire harness is rotatably mounted on the movable ring frame (16).

2. The wire harness winding device for processing automotive wire harnesses according to claim 1, characterized in that, The guiding mechanism also includes a fixed block (10) fixedly installed on the workbench (1), a rotating rod (11) fixedly connected to the movable plate (12) is rotatably installed on the fixed block (10), and a hand-tightening bolt (14) for fixing the rotating rod (11) is threaded on the fixed block (10).

3. A wire harness winding device for processing automotive wire harnesses according to claim 2, characterized in that, The fixed block (10) has a cylindrical receiving groove, and the rotating rod (11) is vertically set in the receiving groove.

4. A wire harness winding device for processing automotive wire harnesses according to claim 3, characterized in that, The tensioning mechanism also includes a movable frame (6) and two sliders (3) slidably sleeved in the tensioning frame (2). The support roller (5) is rotatably installed between the two sliders (3). A spring (4) is welded between the slider (3) and the tensioning frame (2). Two mounting blocks (7) are fixedly installed on the movable frame (6). The pressure roller (8) is rotatably installed between the two mounting blocks (7). A hand-tightening screw (9) for driving the movable frame (6) to move is threaded onto the tensioning frame (2).

5. A wire harness winding device for processing automotive wire harnesses according to claim 4, characterized in that, The movable frame (6) has a concave structure, and guide blocks extending to the tension frame (2) are fixedly installed on both sides of the movable frame (6).

6. A wire harness winding device for processing automotive wire harnesses according to claim 5, characterized in that, The winding mechanism further includes a drive block (19) slidably sleeved in the fixed frame (15) and used to adjust the clamping force of the limiting roller (18). A moving rod (20) is slidably sleeved on the drive block (19). A pressure frame (17) is fixedly installed at the upper end of the moving rod (20). The limiting roller (18) is rotatably installed on the pressure frame (17). A spring (21) that cooperates with the moving rod (20) is welded between the pressure frame (17) and the drive block (19). A detection frame (22) is fixedly installed at the lower end of the drive block (19). A pressure sensor (23) that moves against the lower end of the moving rod (20) is fixedly installed on the detection frame (22). A transmission block (24) that is slidably sleeved on the fixed frame (15) and is connected to the drive block (19) is transmitted. The transmission block (24) is fixedly installed on the drive frame (26). A cylinder (25) for driving the drive frame (26) to move is fixedly installed on the fixed frame (15).

7. A wire harness winding device for processing automotive wire harnesses according to claim 6, characterized in that, The drive block (19) has transmission rods (28) fixedly installed on both sides. The transmission block (24) has elongated limiting holes (27) that cooperate with the transmission rods (28). The elongated limiting holes (27) are inclined.

8. A wire harness winding device for processing automotive wire harnesses according to claim 7, characterized in that, Two symmetrically arranged guide rods (29) are fixedly installed inside the fixed frame (15), and a moving block (30) that is integrally connected with the transmission rod (28) is slidably sleeved on the guide rod (29).

9. A wire harness winding device for processing automotive wire harnesses according to claim 8, characterized in that, The transmission block (24) has a concave structure, and the drive block (19) is sleeved inside the transmission block (24).

10. A method of using a wire harness winding device for processing automotive wire harnesses as described in claim 9, characterized in that, The method of use includes the following steps: Step S1: According to the outer diameter of the car wiring harness to be processed, turn the hand-tightening bolt (14) to loosen the rotating rod (11), turn the movable plate (12) to adjust the distance between the two guide rollers (13), and after the adjustment is completed, tighten the hand-tightening bolt (14) to fix the rotating rod (11) so that the guide roller (13) can perform lateral limiting of the wiring harness. At the same time, turn the hand-tightening screw (9) to drive the moving frame (6) to move downward. The moving frame (6) drives the pressure roller (8) to move downward through the mounting block (7) so that the pressure roller (8) cooperates with the support roller (5) and leaves a gap to match the diameter of the wiring harness. Step S2: Pass one end of the car wiring harness to be wound through the two guide rollers (13), and after being guided by the guide rollers (13), pass through the pressure roller (8) and the support roller (5), and then pass through the limiting rollers (18) in the fixing frame (15), and finally fix it on the take-up roller (31). Step S3, rotate the hand screw (9) again to drive the moving frame (6) to continue to move down, so that the pressure roller (8) exerts downward pressure on the wire harness. Combined with the winding pull of the take-up roller (31), and the support roller (5) presses the wire harness together. At the same time, the slider (3) slides in the tensioning frame (2), and the spring (4) deforms under force to help maintain the stable tension of the wire harness. Step S4, the controller starts the cylinder (25), the cylinder (25) drives the drive frame (26) to move, the drive frame (26) drives the transmission block (24) to move synchronously, the elongated limiting hole (27) on the transmission block (24) cooperates with the inclined surface of the transmission rod (28) on both sides of the drive block (19) to drive the drive block (19) to move towards the center of the fixed frame (15), the drive block (19) drives the pressure frame (17) to move upward through the second spring (21), the pressure frame (17) drives the limiting roller (18) to approach the edge of the wire harness to limit the wire harness; In step S5, as the limiting roller (18) approaches the wire harness, the second spring (21) deforms under force, causing the moving rod (20) to slide on the drive block (19) and apply pressure to the pressure sensor (23). The pressure sensor (23) monitors the clamping force in real time. When the clamping force reaches the threshold preset for the wire harness size, the cylinder (25) stops working, thus achieving stable limiting of the current size wire harness. At the same time, the moving block (30) on the guide rod (29) slides synchronously with the transmission rod (28), ensuring that the drive block (19) moves smoothly. Step S6: Install the wrapping tape roll on the movable ring frame (16), pull out one end of the tape roll and fix it on the wire harness to be wrapped, ensuring that the tape roll and the wire harness are tightly attached; Step S7, the controller starts the take-up roller (31), the take-up roller (31) rotates slowly and takes up the wire harness at a uniform speed. During the winding process, the wire harness is guided by the guide roller (13) to prevent left and right deviation, and is kept in a tensioned state by the cooperation of the pressure roller (8) and the support roller (5). It is limited by the limit roller (18) to prevent shaking. In step S8, the controller synchronously starts the servo motor, which drives the movable ring frame (16) to rotate around the fixed frame (15), causing the tape roll on it to rotate synchronously. During the rotation of the tape roll, the wire harness surface is continuously and evenly wound. During the winding process, the pressure sensor (23) continuously monitors the clamping force of the limit roller (18). If the clamping force deviates from the preset range, the controller controls the cylinder (25) to finely adjust the position of the drive frame (26) in real time to ensure the winding accuracy. Step S9: When the wire harness winding length reaches the preset requirement, the controller stops the operation of the take-up roller (31) and the servo motor, cuts the tape and fixes its end to the wound wire harness to complete the winding operation of a single section of wire harness.

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