U-shaped wire feeding device

Abstract

The invention relates to the field of wire rod forming, in particular to a U-shaped wire feeding device which comprises a rack, and the rack is sequentially provided with a feeding device, a positioning device, a shaping device, a shearing device and a forming device according to a wire rod winding process. The shaping device is used for leveling the wire rod to ensure that the wire rod is flat; the forming device comprises a driving mechanism, a first clamping assembly, a second clamping assembly and a third clamping assembly, the first clamping assembly, the second clamping assembly and the third clamping assembly are sequentially arranged at the discharging end of the shearing device in the wire conveying direction, the first clamping assembly is arranged on the driving mechanism, and the driving mechanism drives the third clamping assembly to rotate and is used for driving the wire to form a U shape. The driving mechanism drives the second clamping assembly to slide so that the second clamping assembly can be aligned with the rotated third clamping assembly. By means of the structure, the automation degree of U-shaped wire rod machining is improved, the machining production efficiency of the U-shaped wire rod is improved, the consistency and accuracy of U-shaped wire rod winding are ensured, and meanwhile the flatness and symmetry of the U-shaped wire rod are improved.

Description

Technical Field

[0001] This application relates to the field of wire forming, and in particular to a U-shaped wire feeding device. Background Technology

[0002] In the field of high-end machinery manufacturing, with the rapid development of technology and the continuous progress of industry, wire processing and forming has become an increasingly crucial process. Among them, wire harnesses, as indispensable components in many industries such as electronic equipment, automobiles, and construction, are of paramount importance.

[0003] FAKRA harnesses are primarily used for radio frequency signal transmission in automobiles, such as in-vehicle antennas and Bluetooth modules, ensuring stable communication for vehicle electronic systems. Ethernet harnesses are widely used in network communication, essential for high-speed data transmission in both home networks and data centers. The production process for these harnesses is extremely complex. First, suitable wires are selected according to the required specifications. After pre-processing such as cutting and stripping, a single wire is flattened, or multiple wires are twisted or braided and then flattened to meet specific shape and size requirements. Next, the flattened harness is cut into wires of a certain length and shaped into special shapes. The shaped wires are then transported to the board-end connector assembly process. This process requires carefully selected connectors to be accurately installed at the ends of the harness, ensuring a secure and reliable connection through welding or crimping. Finally, a series of rigorous tests are conducted, including electrical performance tests and withstand voltage tests. Only after all tests are passed can the harness be officially put into use.

[0004] Existing wire harnesses are mainly divided into high-flexibility wire harnesses and rigid wire harnesses. In some specific applications, rigid wire harnesses need to be shaped into special shapes to meet the actual shaping requirements. Especially in transmission lines and pipelines that install and support machinery and equipment, rigid wire harnesses that can adapt to fixed laying and are not easily deformed are required to ensure the stability and reliability of the line. The common forming method for such rigid wire harnesses usually adopts a simple mechanical structure. After shaping, the wire is cut into a certain length and then manually transferred to an auxiliary forming mold. A single drive device is used to drive the mold to press, so that the mold gradually adjusts the shape of the wire harness, and the straight wire harness slowly conforms to the shape of the mold to achieve the forming. However, the existing rigid wire harness forming method still has obvious defects in practical applications, especially for the shaping of U-shaped rigid wire harnesses. The existing simple molds cannot guarantee that each wound U-shaped wire has a high degree of consistency and accuracy. When facing large-scale production tasks, the degree of automation is low, the production speed is still very slow, and shape deviations are easy to occur. Furthermore, the flatness of the wires wound using existing simple forming molds is not good, and it is difficult to ensure that the U-shaped shape is completely symmetrical. This will affect the automated assembly process of the next board end connector, which will greatly affect the production efficiency, product quality and practical application effect of U-shaped wires. Summary of the Invention

[0005] To improve the automation level of U-shaped wire processing, increase the processing efficiency of U-shaped wire, reduce wire shape deviation caused by manual intervention, ensure the consistency and accuracy of U-shaped wire winding, and improve the flatness and symmetry of U-shaped wire, thereby improving product quality, this application provides a U-shaped wire feeding device.

[0006] This application provides a U-shaped wire feeding device, including a frame. The frame is sequentially arranged with a feeding device, a positioning device, a shaping device, a shearing device, and a forming device according to the wire winding process. The shaping device is used to level the wire to ensure its flatness. The forming device includes a driving mechanism and a first clamping assembly, a second clamping assembly, and a third clamping assembly sequentially arranged along the wire conveying direction at the discharge end of the shearing device. The first clamping assembly is located on the driving mechanism and close to the discharge end of the shearing device. The driving mechanism drives the third clamping assembly to rotate, thereby forming a U-shape with the wire. The driving mechanism also drives the second clamping assembly to slide, aligning it with the rotated third clamping assembly. By adopting the above technical solution, the frame is sequentially arranged with the feeding device, positioning device, shaping device, shearing device, and forming device according to the wire winding process. The feeding device can achieve automatic feeding, improving feeding efficiency. The positioning device can position the wire, ensuring the accuracy of subsequent processing positions. The shaping device flattens the wire, making it smooth and preventing forming problems caused by uneven wire, thus laying the foundation for subsequent high-quality U-shaped wire winding. The cutting device cuts the wire to the required length to meet the production needs of U-shaped wires of different specifications. The drive mechanism in the forming device drives the third clamping component to rotate, which bends the wire into a U-shape. At the same time, it drives the second clamping component to slide and align with the rotated third clamping component. That is, the clamping positions of the second and third clamping components are symmetrical, which allows for precise control of the bending angle and shape of the wire, resulting in highly consistent and accurate U-shaped wires with symmetrical U-shaped shapes. The devices work sequentially and in an orderly manner, forming a complete and efficient winding process with a high degree of automation. Compared with existing simple forming molds, it greatly improves the production efficiency and product quality of U-shaped wires, and facilitates the smooth automated assembly process of the next board-end connector, enhancing the overall practical application effect. Preferably, the drive mechanism includes a mounting base and a gear drive assembly disposed on the mounting base. The mounting base is mounted on the frame, the first clamping assembly is fixedly disposed on the mounting base, the gear drive assembly drives the third clamping assembly to rotate 180° around the mounting base, and the gear drive assembly drives the second clamping assembly to reciprocate and slide on the mounting base along the wire conveying direction. By adopting the above technical solution, the gear drive assembly in the drive mechanism is disposed on the mounting base, and the mounting base is mounted on the frame, so that the entire drive mechanism can be stably integrated into the device. The first clamping assembly is fixedly disposed on the mounting base, providing a stable starting clamping point for subsequent forming operations.The gear drive assembly can drive the third clamping assembly to rotate 180° around the mounting base, using circular motion to bend the wire. This rotation angle design allows the wire to be precisely formed into a standard U-shape. Simultaneously, the gear drive assembly can also drive the second clamping assembly to slide back and forth on the mounting base along the wire feeding direction. By adjusting its position, the second clamping assembly can be aligned with the rotated third clamping assembly, further assisting in wire bending and ensuring the symmetry and consistency of the U-shape. This not only improves the accuracy and stability of U-shaped wire winding, ensuring that each wound U-shaped wire has a highly consistent shape, but also increases production efficiency, better adapting to mass production tasks. It also facilitates the automated assembly process of subsequent board-end connectors, improving the overall production quality and practical application effect of the U-shaped wire. Preferably, the gear drive assembly includes a drive component and a gear component. The gear component includes a gear mounted on the mounting base and a rack and a slide bar located on both sides of the gear. The mounting base is provided with a first slide groove and a second slide groove. The rack is slidably disposed in the first slide groove and meshes with the gear. The slide bar is slidably disposed in the second slide groove. The drive component includes a first drive cylinder and a second drive cylinder. The output rod of the first drive cylinder is fixedly connected to the rack. The output rod of the second drive cylinder is fixedly connected to the slide bar. The third clamping assembly is connected to the gear and rotates synchronously with the gear. The second clamping assembly is connected to the slide bar. By adopting the above technical solution, the first drive cylinder pushes the rack fixedly connected to its output rod to slide in the first slide groove. Since the rack meshes with the gear installed on the mounting base, the sliding of the rack will drive the gear to rotate. Since the third clamping component is connected to the gear and rotates synchronously, the rotation of the gear can drive the third clamping component to rotate, so that the third clamping component can drive the wire to form a U-shape. At the same time, the second drive cylinder pushes the slide bar fixedly connected to its output rod to slide in the second slide groove. Since the second clamping component is connected to the slide bar, the sliding of the slide bar can make the second clamping component reciprocate along the wire conveying direction. After the third clamping component rotates 180°, the second drive cylinder pushes the slide bar to move linearly in the wire discharge direction, so that the second clamping component moves to be aligned with the third clamping component. This driving method, which uses a drive component and gear components in conjunction, provides a stable and precise driving force for winding U-shaped wires. This ensures the coordination and accuracy of the movements of each clamping component, improving the consistency and precision of U-shaped wire winding, reducing shape deviations, increasing production efficiency and product quality, and preventing shape issues from affecting the automated assembly process of subsequent board-end connectors. Preferably, the gear component further includes a gear synchronizer, which passes through the mounting base and connects to the gear. The third clamping component is mounted on the gear synchronizer so that it rotates synchronously with the gear.By adopting the above technical solution, since the gear synchronizer is connected to the gear through the mounting base, and the third clamping assembly is installed on the gear synchronizer, when the gear rotates under the action of the driving component, the gear synchronizer can accurately transmit the rotation of the gear to the third clamping assembly. This synchronous rotation design avoids transmission delay and error, allowing the third clamping assembly to maintain a highly consistent rotational state with the gear. In this way, during the process of driving the wire to form a U-shape, the rotation angle and speed can be controlled more precisely, ensuring that each wound U-shaped wire has a high degree of consistency and precision, thereby improving the production efficiency, product quality, and practical application effect of the U-shaped wire. Preferably, the third clamping assembly includes a swing arm and a clamping head. One end of the swing arm is fixedly connected to the gear synchronizer, and the other end of the swing arm is vertically mounted with the clamping head. By adopting the above technical solution, the fixed connection of one end of the swing arm of the third clamping assembly to the gear synchronizer allows the swing arm to rotate synchronously when the gear synchronizer rotates. A clamping head is vertically mounted at the other end of the swing arm. This structural design allows the swing arm to stably transmit power to the clamping head while the drive mechanism rotates the third clamping assembly. When the gear synchronizer rotates 180° around the mounting base under the action of the drive mechanism, the swing arm drives the clamping head to rotate accordingly, thereby causing the clamping head to guide the wire into a U-shape. Due to the cooperation between the swing arm and the clamping head, the winding path and angle of the wire can be controlled more precisely, ensuring that each wound U-shaped wire has higher consistency and accuracy. This effectively avoids shape deviations affecting the automated assembly process of the next board-end connector, improving the production efficiency, product quality, and practical application effect of U-shaped wires. At the same time, the cooperation between the swing arm and the clamping head also helps to increase production speed during mass production tasks, ensuring efficient production. Preferably, the clamping head includes two clamping portions that open and close, and a clamping drive member that drives the two clamping portions. The clamping surfaces of both clamping portions for clamping the wire are inclined, and each clamping surface of the two clamping portions has a groove. When the clamping drive member drives the two clamping portions to come into contact, the grooves of the two clamping portions close together to form a clamping through hole for clamping the wire. By adopting the above technical solution, the two clamping portions of the clamping head are open and close and driven by the clamping drive member. When it is necessary to clamp the wire, the clamping drive member drives the two clamping portions to come into contact with each other. Because the clamping surfaces of the two clamping portions for clamping the wire are inclined, forces can be applied to the wire more effectively from multiple angles during the contacting process, reducing the possibility of slippage when the wire rotates.Meanwhile, both clamping surfaces of the two clamping parts are provided with grooves. When the two parts are in contact, the grooves form a clamping through hole for clamping the wire. This clamping through hole can tightly wrap the wire, further improving the clamping stability of the wire and ensuring that the wire will not easily shift or shake during subsequent winding and forming operations. This ensures the accuracy and consistency of U-shaped wire winding, which is beneficial to improving the production efficiency and product quality of U-shaped wire. Preferably, the cutting device includes: a cutting head and a cutting drive. The cutting head includes two opening and closing cutting parts, and a cutting through hole for passing the wire is formed between the two cutting parts. The cutting drive drives the two cutting parts to cut the wire. By adopting the above technical solution, the cutting head of the cutting device is provided with two opening and closing cutting parts, and a cutting through hole for passing the wire is formed between them. When the wire passes through the cutting through hole and reaches the designated position, the cutting drive drives the two cutting parts to close, precisely cutting the wire like scissors. In this way, on the one hand, the length of the cut wire can be flexibly controlled according to production needs, ensuring that the length of each segment of wire used for subsequent winding conforms to the predetermined standard, avoiding the impact of inconsistent lengths on the dimensional accuracy of the final U-shaped wire; on the other hand, the precise control of the shearing action by the shearing drive makes the sheared surface more neat and smooth, which is conducive to improving the quality of subsequent U-shaped wire winding, and also reduces stress concentration caused by uneven sheared surfaces, improving the overall performance and stability of the U-shaped wire, thereby helping to improve the yield and production efficiency of U-shaped wire production. Preferably, the shaping device includes: a first pressing mechanism and a second pressing mechanism disposed on the frame, the first pressing mechanism and the second pressing mechanism respectively pressing against the upper and lower surfaces of the wire, and a guide channel for threading the wire is provided between them. By adopting the above technical solution, the first and second pressing mechanisms of the shaping device press against the upper and lower surfaces of the wire, respectively. Since a guide channel for threading the wire is provided between them, when the wire passes through the guide channel, the combined action of the first and second pressing mechanisms effectively eliminates unevenness and bending on the wire surface, thus ensuring the flatness of the wire. Simultaneously, the flattened wire is smoothly introduced into the shearing device for shearing, avoiding shearing difficulties or errors caused by unevenness, improving shearing accuracy and efficiency, and thus enhancing the production quality and stability of the entire U-shaped wire feeding device. Preferably, the positioning device includes a radial positioning mechanism and an axial positioning mechanism sequentially arranged on the frame along the wire conveying direction, the radial positioning mechanism and the axial positioning mechanism forming a positioning channel for threading the wire.By adopting the above technical solution, the radial positioning mechanism and the axial positioning mechanism in the positioning device are sequentially arranged on the frame along the wire conveying direction to form a positioning channel. When the wire passes through the positioning channel, the radial positioning mechanism can limit the radial position of the wire to prevent the wire from shifting in the horizontal direction; the axial positioning mechanism can constrain the axial position of the wire to prevent the wire from moving in the front-to-back direction. In this way, the position of the wire can be accurately determined, so that the wire remains stable during the conveying process, ensuring that the subsequent winding process can be operated based on the accurate position, improving the consistency and accuracy of U-shaped wire winding, reducing the shape deviation problem caused by inaccurate wire position, thereby improving the production efficiency and product quality of U-shaped wire, and also facilitating the smooth progress of the automated assembly process of the next board end connector. Preferably, the feeding device includes: a turntable and a turntable drive, the turntable is horizontally arranged on the frame, and the turntable drive drives the turntable to rotate so that the turntable conveys the wire. By adopting the above technical solution, the feeding device is equipped with a turntable and a turntable drive. The turntable is horizontally mounted on the frame. When the turntable drive drives the turntable to rotate, the rotation generates continuous power, causing the wire wound on the turntable to move accordingly. This rotary conveying method is more continuous and stable, allowing the wire to be continuously and evenly conveyed forward, avoiding jamming and material interruption during the feeding process. This ensures the continuity of each stage of the subsequent U-shaped wire winding process and improves the overall production efficiency of U-shaped wire winding.

[0007] In summary, this application includes at least one of the following beneficial technical effects: 1. The feeding device, positioning device, shaping device, shearing device and forming device are set up on the frame in sequence according to the wire winding process, so that the steps from wire feeding to final forming are connected in an orderly manner, avoiding process confusion and waiting time. The degree of automation is high, and it can efficiently complete the winding of U-shaped wire, thereby improving the production efficiency of U-shaped wire. 2. The shaping device flattens the wire by pressing the upper and lower surfaces of the wire with the first pressing mechanism and the second pressing mechanism respectively, and the wire is straightened by the guide channel between the two, which ensures the flatness of the wire and avoids the problem of poor flatness of the wire. 3. The driving mechanism of the forming device drives the movement of each clamping component. The driving component in the gear drive component drives the rack and slide to move, which in turn drives the third clamping component to rotate and the second clamping component to slide, thereby precisely controlling the U-shaped winding process, ensuring that each wound U-shaped wire harness has a high degree of consistency and accuracy, reducing shape deviation and improving product quality. Attached Figure Description

[0008] Figure 1 This is a structural diagram of a U-shaped wire feeding device according to Embodiment 1; Figure 2 This is a structural diagram of the shearing head of a U-shaped wire feeding device according to Embodiment 1; Figure 3 This is a structural diagram of the forming device of a U-shaped wire feeding device according to Embodiment 1; Figure 4 This is a structural diagram of the forming device of a U-shaped wire feeding device in Embodiment 1, viewed from the bottom.

[0009] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Feeding device; 3. Positioning device; 4. Shaping device; 5. Shearing device; 6. Forming device; 21. Turntable; 22. Turntable drive; 31. Radial positioning mechanism; 32. Axial positioning mechanism; 33. Positioning channel; 41. First pressing mechanism; 42. Second pressing mechanism; 43. Guide channel; 51. Shearing head; 52. Shearing drive; 53. Shearing through hole; 511. Shearing section; 61. First clamping assembly 62. Second clamping assembly; 63. Third clamping assembly; 64. Drive mechanism; 631. Swing arm; 632. Clamping head; 633. Clamping through hole; 641. Mounting base; 642. Gear component; 643. Drive component; 641a. First slide groove; 641b. Second slide groove; 642a. Gear; 642b. Rack; 642c. Slide bar; 642d. Gear synchronizer; 643a. First drive cylinder; 643b. Second drive cylinder. Detailed Implementation

[0010] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0011] Example 1 This application provides a U-shaped wire feeding device, referring to... Figure 1 It includes a frame 1, and a feeding device 2, a positioning device 3, a shaping device 4, a cutting device 5, and a forming device 6, arranged sequentially on the frame 1 according to the wire winding process. These devices work together to achieve efficient and precise winding of rigid wire harnesses into a U-shape, greatly improving production efficiency and product quality, and solving problems such as slow production speed and large shape deviations in existing FAKRA wire harnesses and Ethernet wire harnesses. (Refer to...) Figure 1Specifically, the feeding device 2 in this embodiment includes a turntable 21 and a turntable drive 22. The turntable 21 is disc-shaped and horizontally mounted on the frame 1. The turntable 21 can be made of a metal alloy to ensure a certain level of strength and wear resistance. The turntable drive 22 in this embodiment is a motor, mounted at the bottom of the turntable 21. The motor's output shaft is connected to the turntable 21 via a transmission belt; this is a common method of motor-driven rotation and will not be elaborated further. When the motor starts, the rotation of its output shaft is transmitted to the turntable 21 via the transmission belt, thereby driving the turntable 21 to rotate and thus conveying the wire. This feeding method can continuously and stably provide wire for subsequent processes, avoiding the tediousness and instability of manual feeding and improving the automation level of the entire production line. (Refer to...) Figure 1 Specifically, the positioning device 3 in this embodiment includes a radial positioning mechanism 31 and an axial positioning mechanism 32 sequentially arranged on the frame 1 along the wire conveying direction. The radial positioning mechanism 31 consists of several positioning wheels respectively arranged above and below the wire. There are two upper positioning wheels and three lower positioning wheels. The upper and lower positioning wheels are staggered, and each upper positioning wheel has a concave arc-shaped structure that can conform to the surface of the wire. All positioning wheels have smooth surfaces and a certain degree of elasticity, and are made by wrapping metal hubs with rubber material. A positioning channel 33 for threading the wire is formed between the upper and lower positioning wheels. The position of this channel on the frame 1 corresponds to the direction in which the feeding device 2 conveys the wire, and it can position the wire in the vertical direction to prevent the wire from shaking up and down during the conveying process.

[0012] Reference Figure 1 The axial positioning mechanism 32 also consists of several positioning wheels respectively positioned on the left and right sides of the wire. There are three left positioning wheels and two right positioning wheels, and the left and right positioning wheels are staggered. Each right positioning wheel has a concave arc-shaped structure that conforms to the surface of the wire. A positioning channel 33 is formed between the left and right positioning wheels for threading the wire, preventing the wire from swaying left and right during transport. The positioning channels 33 of the radial positioning mechanism 31 and the axial positioning mechanism 32 are connected and located on the same straight line, working together to transport the wire. This ensures stable axial transport of the wire, guaranteeing accurate entry into subsequent shaping and forming processes, thus improving product precision and consistency. (Refer to...) Figure 1Specifically, the shaping device 4 in this embodiment includes a first pressing mechanism 41 and a second pressing mechanism 42 disposed on the frame 1. The first pressing mechanism 41 and the second pressing mechanism 42 are respectively disposed on the upper and lower sides of the wire conveying path on the frame 1, respectively pressing against the upper and lower surfaces of the wire. A guide tube for threading the wire is disposed between the two, and a guide channel 43 for threading the wire is formed inside the guide tube. The outlet of the guide channel 43 is connected to the discharge end of the shearing device 5. The first pressing mechanism 41 and the second pressing mechanism 42 each consist of multiple rotating rollers and a conveyor belt sleeved on the rotating rollers. The first pressing mechanism 41 and the second pressing mechanism 42 are symmetrically arranged. A motor is installed on each of the rotating rollers, driving the rollers to rotate, which in turn drives the conveyor belt to rotate. The conveyor belts of the first pressing mechanism 41 and the second pressing mechanism 42 press against the upper and lower surfaces of the guide tube, respectively. Since the guide tube in this embodiment is a flexible tube, the first pressing mechanism 41 and the second pressing mechanism 42 can press against the wire to achieve flattening, while also protecting the wire surface and preventing scratches. This shaping method effectively eliminates unevenness on the wire surface, ensuring the flatness of the wire during subsequent winding and improving the forming quality of the U-shaped wire. (Refer to...) Figure 1 and Figure 2 Specifically, the shearing device 5 in this embodiment includes a shearing head 51 and a shearing drive 52. The shearing head 51 includes two opening and closing shearing portions 511, one of which can slide relative to the other on the frame 1. A shearing through hole 53 for threading wire is formed between them, and the shearing through hole 53 is aligned with the outlet of the guide channel 43 of the shaping device 4. The shearing drive 52 in this embodiment is a shearing drive cylinder. The output rod of the cylinder is connected to the slidable shearing portion 511. The shearing drive cylinder drives the slidable shearing portion 511 to slide closer to the other shearing portion 511 to cut the wire. When the cylinder is working, the extension and retraction of its output rod causes the two shearing portions 511 to close quickly, thereby cutting the wire with the two shearing portions 511. The shearing portions 511 can be made of high-strength alloy steel, and the cutting edge is specially treated, making it sharp and durable. To improve the precision and stability of the cutting process, locating pins can be installed on the shearing head 51. These pins are installed at corresponding positions on the two shearing sections 511 to ensure accurate alignment when closed, preventing shearing deviations. The consistent shape and aligned ends of the U-shaped wire harnesses facilitate the assembly of board-end connectors at both ends in subsequent processes, eliminating the need for manual adjustment and further improving the overall processing efficiency of the U-shaped wire harness. (Refer to...) Figure 3 and Figure 4Specifically, the forming device 6 in this embodiment includes a drive mechanism 64 and a first clamping assembly 61, a second clamping assembly 62, and a third clamping assembly 63 sequentially arranged along the wire conveying direction at the discharge end of the shearing device 5. The drive mechanism 64 includes a mounting base 641 and a gear drive assembly disposed on the mounting base 641. The mounting base 641 is mounted on the frame 1. The first clamping assembly 61 is fixedly disposed on the mounting base 641 and is located at the position closest to the discharge end of the shearing device 5. The gear drive assembly drives the third clamping assembly 63 to rotate 180° around the mounting base 641, and the gear drive assembly drives the second clamping assembly 62 to reciprocate and slide on the mounting base 641 along the wire conveying direction. Initially, the first clamping component 61, the second clamping component 62, and the third clamping component 63 sequentially clamp the wire at different positions, ensuring the wire is positioned linearly at the discharge end of the shearing device 5. After the gear drive component drives the third clamping component 63 to rotate 180° around the mounting base 641, the third clamping component 63 rotates to one side of its initial position. Then, the gear drive component drives the second clamping component 62 to move along the wire conveying direction, moving it to the initial position of the third clamping component 63 and aligning it with the rotated third clamping component 63, thus achieving stable symmetrical clamping of the wire. (Refer to...) Figure 3 and Figure 4 In this embodiment, the gear drive assembly includes a drive component 643 and a gear component 642. The gear component 642 includes a gear 642a mounted on a mounting base 641, and a rack 642b and a slide bar 642c located on both sides of the gear 642a. The mounting base 641 has a cuboid structure and is disposed on the frame 1. The mounting base 641 has a first slide groove 641a and a second slide groove 641b, which are arranged parallel to each other on the mounting base 641. The rack 642b is slidably disposed in the first slide groove 641a. In this embodiment, the rack 642b has teeth and can mesh with the gear 642a. The slide bar 642c is slidably disposed in the second slide groove 641b. The slide bar 642c has no teeth and will not mesh with the gear 642a. The driving component 643 includes a first driving cylinder 643a and a second driving cylinder 643b arranged in parallel. The output rod of the first driving cylinder 643a is fixedly connected to a rack 642b. When the first driving cylinder 643a operates, it pushes the rack 642b to slide within a first sliding groove 641a. Through the meshing of the rack 642b with the gear 642a, the gear 642a is driven to rotate. The output rod of the second driving cylinder 643b is fixedly connected to a slide bar 642c. When the second driving cylinder 643b operates, it pushes the slide bar 642c to slide within a second sliding groove 641b. (Refer to...) Figure 3 and Figure 4Specifically, gear component 642 also includes gear synchronizer 642d, which passes through mounting base 641 and connects to gear 642a. Third clamping component 63 is mounted on gear synchronizer 642d to ensure synchronized rotation between the third clamping component 63 and gear 642a. This gear-driven method enables precise motion control, ensuring the accuracy of the rotation angle of the third clamping component 63 and the precision of the sliding position of the second clamping component 62, thus improving the accuracy of U-shaped wire winding.

[0013] Reference Figure 3 and Figure 4Furthermore, the third clamping assembly 63 includes a swing arm 631 and a clamping head 632. One end of the swing arm 631 is fixedly connected to the gear synchronizer 642d, and the other end is vertically mounted with the clamping head 632. The swing arm 631 can be made of high-strength aluminum alloy to reduce weight while ensuring a certain level of strength. The clamping head 632 includes two clamping parts that open and close, and a clamping drive unit that drives the two clamping parts. The clamping surfaces of the two clamping parts for clamping the wire are both inclined, and both clamping surfaces of the two clamping parts are provided with grooves. When the clamping drive unit drives the two clamping parts to fit together, the grooves of the two clamping parts surround and form a clamping through hole 633 for clamping the wire. The clamping drive unit can be a small cylinder or an electric push rod, which can quickly drive the two clamping parts to open and close. This specially designed clamping head 632 can better adapt to the shape of the wire, increase the contact area with the wire, improve the stability of clamping, and ensure that the wire will not loosen or slip during winding. Specifically, both the first clamping assembly 61 and the second clamping assembly 62 are provided with a clamping head 632 and a driving cylinder for driving the clamping head 632 to clamp the wire. Their working principle is the same as that of the clamping head 632 of the third clamping assembly 63. Moreover, these are all common existing clamping head 632 driving structures, which will not be described in detail here. The implementation principle of this embodiment is as follows: The frame 1 integrates five modules: feeding, positioning, shaping, shearing, and forming, operating collaboratively according to the wire winding process. The feeding device 2 uses a motor-driven turntable 21 to achieve stable wire conveying and improve automation. The positioning device 3 uses radial (vertical positioning channel 33 formed by vertically staggered elastic positioning wheels) and axial (horizontal positioning channel 33 formed by horizontally staggered positioning wheels) positioning mechanisms to ensure wire conveying stability and prevent shaking. The shaping device 4 uses symmetrically arranged first and second pressing mechanisms in conjunction with a soft guide tube to press and level the wire surface via a conveyor belt, eliminating unevenness. The shearing device 5 uses a cylinder-driven double shearing section 511 to close and cut the wire. The forming device 6 uses a gear-rack 642b-slide bar 642c drive mechanism to control the coordinated movement of three clamping components. The first clamping component 61 fixes the wire for clamping and positioning, the second clamping component 62 slides axially, and the third clamping component 63 rotates 180° through a gear synchronizer 642d. The specially designed clamping head 632 (with an inclined clamping surface and groove structure) in the third clamping component 63 completes the symmetrical clamping and winding of the wire. Through precise mechanical linkage and process connection, each stage achieves efficient and accurate winding of rigid wire harnesses into a U-shape, effectively improving production efficiency and product quality, and solving problems such as slow production speed and large shape deviation in existing technologies. Example 2: This Example 2 differs from Example 1 in that the drive mechanism 64 of the forming device 6 uses a belt drive assembly instead of a gear drive assembly. The belt drive assembly includes a drive motor, a driving pulley, a driven pulley, and a belt.The drive motor is mounted on the mounting base 641. The driving pulley is connected to the output shaft of the drive motor, and the driven pulley is connected to the rotating or sliding parts of the third clamping assembly 63 and the second clamping assembly 62. A belt is wound between the driving pulley and the driven pulley. When the drive motor starts, it drives the driving pulley to rotate, and the driven pulley rotates or moves through the belt drive, thereby realizing the rotation of the third clamping assembly 63 and the sliding of the second clamping assembly 62. Other aspects are the same as in Embodiment 1. The implementation principle of this embodiment is as follows: the belt drive assembly has the advantages of simple structure, smooth operation, and low noise, which can reduce costs and maintenance difficulty to a certain extent. The motion control of the third clamping assembly 63 and the second clamping assembly 62 is achieved through belt drive, which can also complete the winding of U-shaped wire. Compared with the gear drive assembly, the belt drive assembly has better applicability in some occasions where the precision requirements are not particularly high, and it is more convenient and quick to replace belts and other parts, improving the flexibility and maintainability of the equipment. It has better adaptability to different production environments and needs, and it is also an effective supplement and improvement to the U-shaped wire winding technology. The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A U-shaped wire feeding device, characterized in that, The machine includes a frame (1), which is provided with a feeding device (2), a positioning device (3), a shaping device (4), a shearing device (5) and a forming device (6) in sequence according to the wire winding process; The shaping device (4) is used to flatten the wire to ensure that the wire is flat; The forming device (6) includes a driving mechanism (64) and a first clamping component (61), a second clamping component (62), and a third clamping component (63) arranged sequentially along the wire conveying direction at the discharge end of the shearing device (5). The first clamping component (61) is arranged on the driving mechanism (64) and close to the discharge end of the shearing device (5). The driving mechanism (64) drives the third clamping component (63) to rotate, thereby driving the wire to form a U-shape. The driving mechanism (64) drives the second clamping component (62) to slide, so that the second clamping component (62) is aligned with the rotated third clamping component (63).

2. The U-shaped wire feeding device according to claim 1, characterized in that, The drive mechanism (64) includes a mounting base (641) and a gear drive assembly disposed on the mounting base (641). The mounting base (641) is mounted on the frame (1). The first clamping assembly (61) is fixedly disposed on the mounting base (641). The gear drive assembly drives the third clamping assembly (63) to rotate 180° around the mounting base (641). The gear drive assembly drives the second clamping assembly (62) to reciprocate and slide on the mounting base (641) along the wire conveying direction.

3. The U-shaped wire feeding device according to claim 2, characterized in that, The gear drive assembly includes a drive component (643) and a gear component (642). The gear component (642) includes a gear (642a) mounted on the mounting base (641) and a rack (642b) and a slide bar (642c) located on both sides of the gear (642a). The mounting base (641) is provided with a first slide groove (641a) and a second slide groove (641b). The rack (642b) is slidably disposed in the first slide groove (641a) and meshes with the gear (642a). The slide bar (642c) slides... The driving component (643) is disposed in the second slide groove (641b) and includes a first driving cylinder (643a) and a second driving cylinder (643b). The output rod of the first driving cylinder (643a) is fixedly connected to the rack (642b), and the output rod of the second driving cylinder (643b) is fixedly connected to the slide bar (642c). The third clamping assembly (63) is connected to the gear (642a) and rotates synchronously with the gear (642a). The second clamping assembly (62) is connected to the slide bar (642c).

4. The U-shaped wire feeding device according to claim 3, characterized in that, The gear component (642) further includes a gear synchronizer (642d), which passes through the mounting base (641) and is connected to the gear (642a). The third clamping assembly (63) is mounted on the gear synchronizer (642d) so that the third clamping assembly (63) rotates synchronously with the gear (642a).

5. The U-shaped wire feeding device according to claim 4, characterized in that, The third clamping assembly (63) includes a swing arm (631) and a clamping head (632). One end of the swing arm (631) is fixedly connected to the gear synchronizer (642d), and the other end of the swing arm (631) is vertically mounted with the clamping head (632).

6. The U-shaped wire feeding device according to claim 5, characterized in that, The clamping head (632) includes two clamping parts that open and close and a clamping drive member that drives the two clamping parts. The clamping surfaces of the two clamping parts for clamping the wire are both inclined and have grooves. When the clamping drive member drives the two clamping parts to fit together, the grooves of the two clamping parts surround each other to form a clamping through hole (633) for clamping the wire.

7. The U-shaped wire feeding device according to claim 1, characterized in that, The cutting device (5) includes a cutting head (51) and a cutting drive (52). The cutting head (51) includes two cutting parts (511) that are open and closed. A cutting through hole (53) for threading wire is formed between the two cutting parts (511). The cutting drive (52) drives the two cutting parts (511) to cut the wire.

8. The U-shaped wire feeding device according to claim 1, characterized in that, The shaping device (4) includes a first pressing mechanism (41) and a second pressing mechanism (42) disposed on the frame (1). The first pressing mechanism (41) and the second pressing mechanism (42) press against the upper and lower surfaces of the wire respectively, and a guide channel (43) for threading the wire is provided between them.

9. The U-shaped wire feeding device according to claim 1, characterized in that, The positioning device (3) includes a radial positioning mechanism (31) and an axial positioning mechanism (32) arranged sequentially on the frame (1) along the wire conveying direction, wherein the radial positioning mechanism (31) and the axial positioning mechanism (32) form a positioning channel (33) for threading the wire.

10. The U-shaped wire feeding device according to claim 1, characterized in that, The feeding device (2) includes a turntable (21) and a turntable drive (22). The turntable (21) is horizontally arranged on the frame (1). The turntable drive (22) drives the turntable (21) to rotate so that the turntable (21) conveys wire.

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