Automatic butt joint device for single-core cable

Abstract

The application relates to the field of cable construction, and particularly discloses an automatic butt joint device for single-core cables, which comprises a rack, a winding device, a fixed clamping device, a movable clamping device, a cutting device and a welding device arranged on the rack; the cutting device comprises a mounting ring rotatably arranged on the rack, a first power mechanism for driving the mounting ring to rotate and a second power mechanism for driving the mounting ring to move along the length direction of the rack, a cutting knife and a third power mechanism for driving the cutting knife to move along the radial direction of the mounting ring are arranged on the mounting ring; a detection plate for electrically connecting with the cable core end is arranged on the rack, the detection plate is electrically connected with a first wire, the cutting knife is electrically connected with a second wire, the first wire and the second wire are electrically connected with a first controller in common, and the first controller is electrically connected with the third power mechanism. The application has the effect that the cable insulation layer can be automatically and efficiently stripped, and the cable core is little damaged.

Description

Technical Field

[0001] This application relates to the field of cable construction, and in particular to an automatic splicing device for single-core cables. Background Technology

[0002] Currently, in cable repair and construction, it is usually necessary to process cable heads at the cable ends. This typically involves cutting the cable insulation to expose the cable core, then welding the two cores to be joined. After welding, waterproof tape and insulating tape are wrapped around the cable, followed by thermoplastic or cold-plastic sealing. However, in actual operation, the operational quality of the construction personnel, such as insecure tape wrapping, can affect the operational stability of the joined cable.

[0003] In the related technology, Chinese patent CN105691721A discloses a baling machine, which includes a frame, a vertical positioning plate, at least three positioning wheels, a turntable, a drive wheel, a power mechanism, a belt roller, a heating wire for melting the bundled tape, and a clamping mechanism for clamping the tape. The vertical positioning plate is fixed to the frame and has a first through hole for the tube to pass through. The positioning wheels are pivotally connected to the vertical positioning plate, and the drive wheel is pivotally connected to the vertical positioning plate. The power mechanism is driven by the drive wheel and is used to drive the drive wheel to rotate. The turntable has a second through hole for the tube to pass through, and the outer edge of the turntable rolls with the outer periphery of the positioning wheel and the outer periphery of the drive wheel, respectively. The clamping mechanism is fixed to the vertical positioning plate, the heating wire is fixed to the clamping mechanism, and the belt roller is pivotally connected to the turntable through a fixed shaft.

[0004] Based on the aforementioned technologies, the aforementioned winding device can be used to install water-stop tape and insulating tape onto the pulleys respectively. The welded cable and cable head are then passed through the turntable. Activating the power mechanism causes the drive wheel to rotate the turntable, simultaneously moving the cable at a uniform speed. This automatically winds water-stop tape or insulating tape onto the cable core, reducing the impact of manual operation on quality control and lowering labor costs. However, in actual construction, when stripping the cable insulation layer, due to the varying outer diameter of the cable core and the thickness of the insulation layer, the process often relies on the experience of the construction personnel. This is especially true when repairing cables with thick insulation layers, where manual operation is inefficient and easily damages the cable core. Summary of the Invention

[0005] To address the issues of low efficiency and easy damage to the cable core during insulation removal by construction workers, this application provides an automatic splicing device for single-core cables.

[0006] The automatic splicing device for single-core cables provided in this application adopts the following technical solution: An automatic splicing device for single-core cables includes a frame, a winding device on the frame, a fixed clamping device for clamping the cable, a movable clamping device for clamping the cable head, a cutting device for cutting the insulation layer, and a welding device for welding the cable core. The fixed clamping device and the movable clamping device are respectively located at both ends of the frame along its length. The cutting device includes a mounting ring rotatably mounted on a frame, a first power mechanism for driving the mounting ring to rotate, and a second power mechanism for driving the mounting ring to move along the length of the frame. A cutting blade is provided on the mounting ring, and a third power mechanism for driving the cutting blade to move radially along the mounting ring. The frame is equipped with a detection board for electrical connection to the end of the cable core. The detection board is electrically connected to a first wire, and the cutter is electrically connected to a second wire. The first wire and the second wire are electrically connected to a first controller, and the first controller is electrically connected to a third power mechanism.

[0007] By adopting the above technical solution, when connecting cables and cable heads, the cables and cable heads are first passed through the fixed clamping device and the movable clamping device respectively and fixed. The cable joint end passes through the mounting ring in the center and is pressed against the detection plate to ensure good contact between the detection plate and the cable core. Then, the automatic connection device is started. When the third power mechanism is started, it drives the cutter to approach the cable and pierce the cable insulation layer. At the same time, the first power mechanism can also drive the mounting ring to rotate so that the cutter can cut the cable insulation layer. When the metal cutting blade pierces the insulation layer and comes into contact with the cable core, the first and second conductors form a closed loop through the cable core. The first controller sends a control signal to stop the third power mechanism from driving the cutting blade to continue moving. Then, the first power mechanism drives the mounting ring to continue rotating so that the cutting blade completely cuts the cable insulation layer before stopping. Next, the second power mechanism drives the mounting ring to move towards the movable clamping device. Thus, the cutting blade can peel the insulation layer off the cable core, realizing the automatic stripping of the cable insulation layer by the docking device of this application. Compared with manual operation relying on experience, the processing efficiency of this application is higher. Furthermore, the detection by the detection plate can greatly reduce the probability of the cutting blade damaging the cable core, ensuring construction quality.

[0008] After the detection plate is removed, the cable head is pressed against the end of the cable core with the insulation stripped by the movable clamping device, and then the joint between the two is welded by the welding device. After the welding is completed, the winding device automatically wraps the water-stop tape and the insulating tape around the cable core and the joint of the cable core and the cable head in sequence, thus completing the automated connection of the cable and the cable head.

[0009] Optionally, a slide block is slidably disposed on the frame along its length direction, and at least three guide wheels are rotatably disposed on the slide block, which surround the outer or inner circumference of the mounting ring and axially limit the mounting ring. A first power mechanism is used to drive the mounting ring to rotate on the multiple guide wheels, and a second power mechanism is configured as a first linear drive member for driving the slide block to slide on the frame.

[0010] By adopting the above technical solution, multiple guide wheels guide and limit the rotation of the mounting ring, making the rotation of the mounting ring driven by the first power mechanism more stable; at the same time, with the help of the slide, the first linear drive component can also drive the mounting ring to move more smoothly, ensuring that the cutter can stably scrape the insulation layer from the cable core and reduce the impact on the cable core.

[0011] Optionally, the mounting ring is provided with multiple cutting blades, and the third power mechanism is used to drive the multiple cutting blades to move synchronously and with the same displacement.

[0012] By adopting the above technical solution, the setting of multiple cutters can improve the cutting efficiency of cable insulation layer, and can also significantly reduce the rotation angle of the mounting ring, thereby reducing equipment design and assembly costs.

[0013] Optionally, the mounting ring is provided with a plurality of sliders that correspond one-to-one with the plurality of cutting blades to prevent slippage. The third power mechanism includes a coaxial rotating disk that is rotatably mounted on the mounting ring and a first rotary drive for driving the coaxial rotating disk to rotate. The first controller is electrically connected to the first rotary drive. The moving disk has a plurality of moving grooves arranged in a circular array at equal intervals, each corresponding to one of the sliders. A central column is fixed to each slider, passing through the moving groove and fixed to the cutting blade. The moving groove is tangent to the concentric circle of the moving disk.

[0014] By adopting the above technical solution, when the first rotary drive unit drives the synchronous disk to rotate, the multiple central columns on the multiple sliders have a tendency to move under the action of the multiple synchronous grooves on the synchronous disk, while the sliders can only move radially along the mounting ring. As a result, when the synchronous disk rotates, it can simultaneously drive multiple sliders to move synchronously and with the same displacement, that is, realize the synchronous cutting operation of multiple cutting blades, and promote high-quality and high-efficiency cutting of cable insulation layers.

[0015] Optionally, a support rod is hinged to the frame, and the detection plate is installed at the end of the support rod away from the frame. The hinge axis between the support rod and the frame is arranged along the sliding direction of the slide, and a torsional elastic element is provided at the hinge axis. The slide is provided with a paddle for pushing the support rod to flip when the slide approaches the movable clamping device.

[0016] By adopting the above technical solution, when the cutter slides towards the movable clamping device under the drive of the slide, the paddle on the slide contacts the support rod, and as the slide gradually approaches, it pushes the support rod to flip. This allows the support rod to simultaneously drive the detection plate out of the cable core while the cutter is stripping the insulation layer. Thus, when the insulation layer is completely peeled off from the cable core, the detection plate also exits from the joint between the cable and the cable head, which is beneficial for the subsequent welding process.

[0017] Optionally, the portion of the support rod where the detection plate is located is insulated, and the detection plate has a protrusion on the side facing away from the movable clamping device.

[0018] By adopting the above technical solution, the conductive detection board is insulated and mounted on the support rod, which can reduce interference from other components. Furthermore, the protrusion on the detection board facilitates good contact between the detection board and the cable core, effectively ensuring the detection accuracy of the timing of contact between the cutting blade and the cable core, thereby controlling the damage to the cable core caused by the cutting blade when cutting the insulation layer.

[0019] Optionally, the movable clamping device includes a slide table slidably disposed on the frame, a first three-jaw chuck movably mounted on the slide table, and a second linear drive member mounted on the frame for driving the slide table to slide. A first baffle is fixedly connected to the slide table on the side of the first three-jaw chuck away from the fixed clamping device, and a first pressure sensor is disposed between the first baffle and the first three-jaw chuck.

[0020] By adopting the above technical solution, after the insulation layer on the cable is completely removed, the detection plate is removed, and the second linear drive is activated to move the slide table and the first three-jaw chuck toward the fixed clamping device. This allows the cable head to be pressed against the end of the cable core, so that the welding device can weld the joint between the two. During the process of pressing the cable head against the cable core, the first three-jaw chuck presses against the first pressure sensor, which can detect the pressing force between the cable head and the cable core. This allows for monitoring of the cable joint before and during welding, ensuring welding quality.

[0021] Optionally, a second baffle is fixedly connected to the slide table on the side of the first three-jaw chuck near the fixed clamping device, and a second pressure sensor is provided between the second baffle and the first three-jaw chuck. The first three-jaw chuck is anti-sliply mounted between the first baffle and the second baffle.

[0022] By adopting the above technical solution, after the cable joint is welded, the first three-jaw chuck clamps the cable head and moves it away from the fixed clamping device. The first three-jaw chuck presses against the second pressure sensor, which can apply a set tension to the welded cable joint to detect the welding quality of the cable joint.

[0023] Optionally, a slitting blade is fixedly connected to the side of the cutter near the movable clamping device, the blade of the slitting blade is positioned facing the movable clamping device, and a first transition surface is provided at the end of the slitting blade near the tip of the cutter.

[0024] By adopting the above technical solution, when the cutter performs circumferential cutting on the cable insulation layer under the drive of the mounting ring, the setting of the first transition surface can reduce the contact area between the cutter and the insulation layer, and minimize the resistance when the cutter circumferentially cuts the insulation layer. After the cutter completes the circumferential cutting of the insulation layer, when the second power mechanism drives the mounting ring to move towards the movable clamping device, the cutter will cut the insulation layer along the length of the cable, further improving the stripping effect of the insulation layer. In particular, when multiple cutters are set, the sleeve-shaped cable is divided into multiple insulation layers, which is more conducive to the detachment of the insulation layer from the cable core and improves the stripping efficiency of the insulation layer.

[0025] Optionally, a second transition surface is provided between the cutting blade and the slitting blade.

[0026] By adopting the above technical solution, the setting of the second transition surface can make the rotation of the cutter on the insulation layer smoother as much as possible, and further reduce the resistance when the cutter cuts the insulation layer.

[0027] In summary, this application includes at least one of the following beneficial technical effects: 1. As the mounting ring rotates, the cutting blade cuts the cable insulation layer and advances along with the mounting ring. The detection plate abuts against the end of the cable core. When the metal cutting blade pierces the insulation layer and contacts the cable core, the first conductor and the second conductor form a closed loop through the cable core. The first controller sends a control signal to stop the third power mechanism from driving the cutting blade to continue moving. Then, as the mounting ring moves toward the movable clamping device, the cutting blade can peel off the insulation layer from the cable core, realizing the automatic stripping of the cable insulation layer by the docking device of this application. Compared with manual operation relying on experience, the processing efficiency of this application is higher. Furthermore, the detection by the detection plate can greatly reduce the probability of the cutting blade damaging the cable core, ensuring construction quality. 2. By setting multiple cutting blades and using multiple moving slots on the moving plate, the synchronous and same displacement of multiple cutting blades can be achieved, which can significantly promote high-quality and high-efficiency cutting of cable insulation layers; 3. Insulating the conductive detection board on the support rod can reduce interference from other components. Furthermore, the protrusion on the detection board facilitates good contact between the detection board and the cable core, effectively ensuring the detection accuracy of the timing of contact between the cutting blade and the cable core, thereby controlling the damage to the cable core caused by the cutting blade when cutting the insulation layer. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0029] Figure 2 This is a schematic diagram of the structure of the cutting device after the detection plate is away from the cable in an embodiment of this application.

[0030] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0031] Figure 4 This is a side view of the overall structure of an embodiment of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Winding device; 12. Fixed clamping device; 13. Movable clamping device; 14. Welding device; 21. Mounting ring; 22. First power mechanism; 221. Guide wheel; 222. Gear ring; 223. Gear; 224. First servo motor; 23. Second power mechanism; 24. Cutting blade; 25. Third power mechanism; 251. Slider; 252. Co-moving disk; 253. First rotary drive component; 2531. Worm gear; 2532. Worm; 2533. Second servo motor; 254. Co-moving groove; 255. Central column; 26. Slide block; 31. Detection plate; 32. Support rod; 33. Torsional elastic element; 34. Paddle; 41. Slide table; 42. First three-jaw chuck; 43. Second linear drive; 44. First baffle; 45. First pressure sensor; 46. Second baffle; 47. Second pressure sensor; 5. Cutting tool; 51. First transition surface; 52. Second transition surface. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0034] This application discloses an automatic splicing device for single-core cables. (Refer to...) Figure 1 and Figure 2 The automatic single-core cable splicing device includes a frame 1, on which a winding device 11 is installed. The required number of winding devices 11 can be selected according to the amount of tape to be wound, or one type of tape can be used to automatically wind the cable after it has been wound. The frame 1 is also equipped with a fixed clamping device 12 for holding the cable, a movable clamping device 13 for holding the cable head, a cutting device for cutting the insulation layer, and a welding device 14 for welding the cable core. The fixed clamping device 12 and the movable clamping device 13 are respectively located at both ends of the length of the frame 1. The welding device 14 is a commonly used laser ring welding machine, and its structure for driving the welding torch to move in a circle can be referenced from the mechanical structure of the winding device 11 that drives the tape pulley to move in a circle.

[0035] Reference Figure 2 and Figure 3 The cutting device includes a mounting ring 21 rotatably mounted on a frame 1, a first power mechanism 22 for driving the mounting ring 21 to rotate, and a second power mechanism 23 for driving the mounting ring 21 to move along the length of the frame 1. A cutting blade 24 is provided on the mounting ring 21, and a third power mechanism 25 for driving the cutting blade 24 to move radially along the mounting ring 21. Mainly, a detection plate 31 for electrical connection with the end of the cable core is installed on the frame 1. The detection plate 31 is electrically connected to a first wire, and the cutter 24 is electrically connected to a second wire. The first and second wires are electrically connected to a first controller, which is electrically connected to a third power mechanism 25. In actual setup, the first controller can be set as a power-triggered controller, and the first and second wires can be connected to the positive and negative terminals of a low-voltage power supply, respectively. The power supply line of the first controller is connected in series with either the first or second wire.

[0036] In this way, when connecting the cable and the cable head, the cable and the cable head are first passed through the fixed clamping device 12 and the movable clamping device 13 respectively and fixed. The cable joint end passes through the mounting ring 21 in the center and then its cable core is pressed against the detection plate 31. Then, the third power mechanism 25 is activated to drive the cutter 24 to approach the cable and pierce the cable insulation layer. At the same time, the first power mechanism 22 can also drive the mounting ring 21 to rotate so that the cutter 24 can cut the cable insulation layer. When the metal cutting blade 24 pierces the insulation layer and comes into contact with the cable core, the first conductor and the second conductor form a closed loop through the cable core. The first controller sends a control signal to stop the third power mechanism 25 from driving the cutting blade 24 to continue moving. Then, the first power mechanism 22 drives the mounting ring 21 to continue rotating so that the cutting blade 24 completely cuts the cable insulation layer before stopping. Then, the second power mechanism 23 drives the mounting ring 21 to move towards the movable clamping device 13. Thus, the cutting blade 24 can peel the insulation layer off the cable core, realizing the automatic stripping of the cable insulation layer by the docking device of this application. Compared with manual operation based on experience, the processing efficiency of this application is higher. Furthermore, the detection by the detection plate 31 can greatly reduce the probability of the cutting blade 24 damaging the cable core, ensuring the construction quality.

[0037] After the detection plate 31 is removed, the cable head is pressed against the end of the cable core after the insulation layer has been stripped by the movable clamping device 13, and then the joint between the two is welded by the welding device 14. After the welding is completed, the winding device 11 automatically wraps the water-stop tape and the insulating tape around the cable core and the joint between the cable core and the cable head in sequence, thus completing the automated connection of the cable and the cable head.

[0038] Among them, reference Figure 1 and Figure 2A slide block 26 is slidably disposed on the frame 1 along its length direction. At least three guide wheels 221 are rotatably disposed on the slide block 26, which surround the outer or inner circumference of the mounting ring 21 and axially limit the mounting ring 21. The guide wheels 221 are configured as concave wheels, and the ring wall of the mounting ring 21 is embedded in the groove of the guide wheel 221. A first power mechanism 22 is used to drive the mounting ring 21 to rotate on the multiple guide wheels 221. A second power mechanism 23 is configured as a first linear drive member to drive the slide block 26 to slide on the frame 1.

[0039] In this embodiment, the first power mechanism 22 includes a gear ring 222 coaxially fixed to the mounting ring 21, a gear 223 rotatably mounted on the frame 1, and a first servo motor 224 for driving the gear 223 to rotate. The gear 223 is meshed with the gear ring 222. The first linear drive is a linear motor.

[0040] Furthermore, to further improve the cutting efficiency of the cutting device for cable insulation, refer to Figure 1 and Figure 2 The mounting ring 21 is equipped with multiple cutting blades 24, and the third power mechanism 25 is used to drive the multiple cutting blades 24 to move synchronously and with the same displacement. Specifically, the mounting ring 21 is equipped with multiple sliders 251 that are corresponding one-to-one with the multiple cutting blades 24. The third power mechanism 25 includes a coaxially rotating disk 252 mounted on the mounting ring 21 and a first rotary drive component 253 for driving the coaxially rotating disk 252 to rotate. The first controller is electrically connected to the first rotary drive component 253. In this embodiment, three cutting blades 24 are provided. The first rotary drive component 253 includes a worm gear 2531 coaxially fixed to the coaxially rotating disk 252. The worm gear 2531 has a through hole in the middle. A worm 2532 that meshes with the worm gear 2531 and a second servo motor 2533 for driving the worm 2532 to rotate are rotatably mounted on the mounting ring 21. The first controller is controlled and connected to the second servo motor.

[0041] As a further requirement, refer to Figure 1 and Figure 2 The moving disk 252 has multiple moving grooves 254 arranged in a circular array at equal intervals, which correspond one-to-one with multiple sliders 251. A central column 255 is fixedly connected to the slider 251, which passes through the moving groove 254 and is fixedly connected to the cutter 24. The moving groove 254 is tangent to the concentric circle of the moving disk 252. The moving groove 254 can be a straight groove or an arc groove.

[0042] With this configuration, when the first rotary drive 253 drives the co-moving disk 252 to rotate, the multiple central columns 255 on the multiple sliders 251 have a tendency to move under the action of the multiple co-moving grooves 254 on the co-moving disk 252, while the sliders 251 can only move radially along the mounting ring 21. As a result, when the co-moving disk 252 rotates, it can simultaneously drive the multiple sliders 251 to move synchronously and with the same displacement, which means that the synchronous cutting operation of multiple cutting blades 24 is realized, promoting high-quality and high-efficiency cutting of the cable insulation layer.

[0043] However, in actual operation, although multiple cutters 24 can efficiently cut the insulation layer of the cable, the removal of the insulation sleeve from the cable core still requires the scraping effect of the cutters 24. This places high demands on the axial anti-displacement capability of the mounting ring 21 and the slide 26. After working under the above conditions for a long time, the mounting ring 21 is very prone to deflection between multiple guide wheels 221, which reduces the positioning accuracy of multiple cutters 24.

[0044] Therefore, refer to Figure 2 and Figure 3 A slitting blade 5 is fixedly attached to the side of the cutting blade 24 near the movable clamping device 13, and the blade of the slitting blade 5 is positioned facing the movable clamping device 13. A first transition surface 51 is provided at one end of the slitting blade 5 near the tip of the cutting blade 24, and a second transition surface 52 is provided between the blade of the slitting blade 5 and the blade of the cutting blade 24.

[0045] With this configuration, when the cutter 24, driven by the mounting ring 21, performs circumferential cutting on the cable insulation layer, the first transition surface 51 reduces the contact area between the cutter 5 and the insulation layer, while the second transition surface 52 allows the cutter 24 to rotate more smoothly on the insulation layer, minimizing the resistance when the cutter 24 circumferentially cuts the insulation layer. After the cutter 24 completes circumferential cutting of the insulation layer, when the second power mechanism 23 drives the mounting ring 21 to move closer to the movable clamping device 13, multiple cutters 5 slice the insulation layer along the length of the cable, dividing the sleeve-shaped cable into multiple insulation layers. This facilitates the detachment of the insulation layer from the cable core, significantly improving the stripping efficiency of the insulation layer while reducing the durability requirements of the cutting device against axial forces.

[0046] Considering that welding of the butt joints of welding device 14 is required immediately after the insulation layer is peeled off, the detection plate 31 needs to be removed promptly. Therefore, referring to... Figure 1 and Figure 2A support rod 32 is hinged to the frame 1. A detection plate 31 is installed on the end of the support rod 32 away from the frame 1. The hinge axis between the support rod 32 and the frame 1 is set along the sliding direction of the slide 26, and a torsional elastic element 33 is provided at the hinge axis. The torsional elastic element 33 is a torsion spring. When the torsional elastic element 33 is in the initial state, the detection plate 31 is located on the central axis of the mounting ring 21. A lever 34 is fixed to the slide 26 for pushing the support rod 32 to flip when the slide 26 approaches the movable clamping device 13. The side of the lever 34 near the support rod 32 has a guide slope. The part of the support rod 32 with the detection plate 31 is insulated, and the side of the detection plate 31 away from the movable clamping device 13 has a protrusion.

[0047] For specific settings, please refer to... Figure 1 and Figure 2 To reduce the impact of the detection plate 31 on the welding position of the welding device 14 when it is removed, on the one hand, the welding torch on the welding device 14 is tilted towards the position of the detection plate 31 so that the support rod 32 is misaligned with the mechanical mechanism that drives the welding torch to make circumferential movement, thereby reducing the interference between the two. On the other hand, the hinge of the support rod 32 and the frame 1 is provided on the side of the frame 1, and the support rod 32 is set in an arc shape with the inner arc surface facing the center line of the frame 1, in order to increase the displacement of the detection plate 31 when the support rod 32 is flipped under the pushing action of the paddle 34 on the slide block 26.

[0048] With this configuration, when the cutter 24 slides towards the movable clamping device 13 under the drive of the slide block 26, the paddle 34 on the slide block 26 contacts the support rod 32, and as the slide block 26 gradually approaches, it pushes the support rod 32 to flip. This allows the support rod 32 to be driven to exit the cable core simultaneously when the cutter 24 is stripping the insulation layer. Thus, when the insulation layer is completely peeled off from the cable core, the detection plate 31 also exits from the joint between the cable and the cable head, which is beneficial for the subsequent welding process.

[0049] On the other hand, refer to Figure 1 and Figure 4 The aforementioned movable clamping device 13 includes a slide table 41 slidably mounted on the frame 1, a first three-jaw chuck 42 movably mounted on the slide table 41, and a second linear drive 43 mounted on the frame 1 for driving the slide table 41 to slide. The second linear drive 43 is a linear motor. A first baffle 44 is fixedly connected to the slide table 41 on the side of the first three-jaw chuck 42 away from the fixed clamping device 12. A first pressure sensor 45 is provided between the first baffle 44 and the first three-jaw chuck 42. Correspondingly, the fixed clamping device 12 is a second three-jaw chuck fixedly connected to the frame 1 and coaxial with the first three-jaw chuck 42.

[0050] Furthermore, to further enrich the functionality of this application, refer to Figure 4The slide table 41 is fixedly connected to the side of the first three-jaw chuck 42 near the fixed clamping device 12 with a second baffle 46. A second pressure sensor 47 is provided between the second baffle 46 and the first three-jaw chuck 42. The first three-jaw chuck 42 is anti-sliply installed between the first baffle 44 and the second baffle 46.

[0051] With this setup, after removing the detection plate 31, the second linear drive 43 is activated to move the slide 41 towards the first three-jaw chuck 42, pressing the cable head against the end of the cable core. At this time, the first three-jaw chuck 42 presses against the first pressure sensor 45, detecting the clamping force between the cable head and the cable core. This allows for monitoring before and during the welding of the cable joint, ensuring welding quality. After the cable joint welding is completed, the first three-jaw chuck 42 clamps the cable head and moves away from the fixed clamping device 12. The first three-jaw chuck 42 presses against the second pressure sensor 47, applying a set tension to the welded cable joint to detect the welding quality.

[0052] The implementation principle of an automatic single-core cable splicing device according to an embodiment of this application is as follows: When splicing the cable and cable head, the cable and cable head are first passed through the fixed clamping device 12 and the movable clamping device 13 respectively and fixed. The cable connector end passes through the mounting ring 21 in the center and then its cable core is pressed against the detection plate 31. Then, the third power mechanism 25 is activated to drive the cutter 24 to approach the cable and pierce the cable insulation layer. At the same time, the first power mechanism 22 can also drive the mounting ring 21 to rotate so that the cutter 24 can cut the cable insulation layer.

[0053] When the metal cutting blade 24 pierces the insulation layer and comes into contact with the cable core, the first conductor and the second conductor form a closed loop through the cable core. The first controller sends a control signal to stop the third power mechanism 25 from driving the cutting blade 24 to continue moving. Then, the first power mechanism 22 drives the mounting ring 21 to continue rotating so that the cutting blade 24 completely cuts the cable insulation layer before stopping. Then, the second power mechanism 23 drives the mounting ring 21 to move towards the movable clamping device 13. Thus, the cutting blade 24 can peel the insulation layer off the cable core, realizing the automatic stripping of the cable insulation layer by the docking device of this application. Compared with manual operation based on experience, the processing efficiency of this application is higher. Furthermore, the detection by the detection plate 31 can greatly reduce the probability of the cutting blade 24 damaging the cable core, ensuring the construction quality.

[0054] 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. An automatic splicing device for single-core cables, comprising a frame (1), wherein a winding device (11) is provided on the frame (1), characterized in that: The frame (1) is also provided with a fixed clamping device (12) for clamping cables, a movable clamping device (13) for clamping cable heads, a cutting device for cutting insulation layers, and a welding device (14) for welding cable cores. The fixed clamping device (12) and the movable clamping device (13) are respectively provided at both ends of the frame (1) in the length direction. The cutting device includes a mounting ring (21) rotatably mounted on the frame (1), a first power mechanism (22) for driving the mounting ring (21) to rotate, and a second power mechanism (23) for driving the mounting ring (21) to move along the length direction of the frame (1). A cutting blade (24) is provided on the mounting ring (21), and a third power mechanism (25) for driving the cutting blade (24) to move radially along the mounting ring (21). The frame (1) is equipped with a detection plate (31) for electrical connection with the end of the cable core. The detection plate (31) is electrically connected to a first wire, and the cutter (24) is electrically connected to a second wire. The first wire and the second wire are electrically connected to a first controller, and the first controller is electrically connected to the third power mechanism (25). A slide block (26) is slidably disposed on the frame (1) along its length direction. At least three guide wheels (221) are rotatably disposed on the slide block (26) surrounding the outer or inner circumference of the mounting ring (21) and axially limiting the mounting ring (21). A first power mechanism (22) is used to drive the mounting ring (21) to rotate on the multiple guide wheels (221). A second power mechanism (23) is configured as a first linear drive member for driving the slide block (26) to slide on the frame (1). A support rod (32) is hinged to the frame (1). The detection plate (31) is installed at the end of the support rod (32) away from the frame (1). The hinge axis between the support rod (32) and the frame (1) is arranged along the sliding direction of the slide (26), and a torsional elastic element (33) is provided at the hinge axis. The slide (26) is provided with a paddle (34) for pushing the support rod (32) to flip when the slide (26) is close to the movable clamping device (13).

2. The automatic splicing device for a single-core cable according to claim 1, characterized in that: The mounting ring (21) is provided with a plurality of cutting blades (24), and the third power mechanism (25) is used to drive the plurality of cutting blades (24) to move synchronously and with the same displacement.

3. The automatic splicing device for a single-core cable according to claim 2, characterized in that: The mounting ring (21) is provided with a plurality of sliders (251) that correspond one-to-one with the plurality of cutting blades (24). The third power mechanism (25) includes a coaxially rotating disk (252) on the mounting ring (21) and a first rotary drive (253) for driving the coaxial disk (252) to rotate. The first controller is electrically connected to the first rotary drive (253). The moving disk (252) has a plurality of moving grooves (254) arranged in a circular array at equal intervals, which correspond one-to-one with the plurality of sliders (251). The sliders (251) have a central column (255) that passes through the moving grooves (254) and is fixed to the cutter (24). The moving grooves (254) are tangent to the concentric circles of the moving disk (252).

4. The automatic splicing device for a single-core cable according to claim 1, characterized in that: The part of the support rod (32) where the detection plate (31) is located is insulated, and the detection plate (31) has a protrusion on the side away from the movable clamping device (13).

5. The automatic splicing device for a single-core cable according to claim 1, characterized in that: The movable clamping device (13) includes a slide (41) slidably disposed on the frame (1), a first three-jaw chuck (42) movably mounted on the slide (41), and a second linear drive (43) mounted on the frame (1) for driving the slide (41) to slide. A first baffle (44) is fixedly connected to the slide (41) on the side of the first three-jaw chuck (42) away from the fixed clamping device (12). A first pressure sensor (45) is disposed between the first baffle (44) and the first three-jaw chuck (42).

6. The automatic splicing device for a single-core cable according to claim 5, characterized in that: The slide (41) is fixedly connected to a second baffle (46) on the side of the first three-jaw chuck (42) near the fixed clamping device (12). A second pressure sensor (47) is provided between the second baffle (46) and the first three-jaw chuck (42). The first three-jaw chuck (42) is anti-sliply installed between the first baffle (44) and the second baffle (46).

7. The automatic splicing device for a single-core cable according to claim 1, characterized in that: The cutting blade (24) is fixedly connected to a slitting blade (5) arranged along the length direction of the cutting blade (24) on the side near the movable clamping device (13). The cutting edge of the slitting blade (5) is arranged facing the movable clamping device (13), and a first transition surface (51) is provided at the end of the slitting blade (5) near the tip of the cutting blade (24).

8. An automatic splicing device for a single-core cable according to claim 7, characterized in that: A second transition surface (52) is provided between the cutting edge of the slitting knife (5) and the cutting edge of the cutting knife (24).

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