Cable welding device

Abstract

The invention relates to a cable welding device. The cable welding device comprises a welding cavity, a cutting mechanism, two clamping mechanisms and a moving mechanism. Two inlets which are oppositely arranged are formed in the welding cavity. And the cutting mechanism is used for cutting the end part of the cable to be welded, so that the end part of the cable is cut into a conical shape. And the clamping mechanisms are used for clamping cables, and each clamping mechanism is aligned with each inlet. And the two clamping mechanisms are connected with the moving mechanism, and the moving mechanism is used for enabling the two clamping mechanisms to move in opposite directions so as to drive the end part of the cable to enter the welding cavity through the corresponding inlet, or enabling the two clamping mechanisms to move in opposite directions. According to the cable welding device, an electromagnetic induction welding mode is adopted, so that the conical end parts of the two cables are slowly close to each other in the welding process, a mode that the middle is firstly welded and the outer sides are slowly welded is formed, and the welding quality of the inner layers and the outer layers of the cables is ensured.

Description

Technical Field

[0001] This application relates to the field of cable processing technology, and in particular to a cable welding device. Background Technology

[0002] With the acceleration of global urbanization, power cables are playing an increasingly important role in urban power transmission. The expansion of medium-voltage cable deployment has largely replaced urban overhead lines. Due to the complex and diverse needs of engineering sites, limitations in cable production length, and various factors such as cable malfunctions, cable splicing has become a critical and unavoidable issue. Conductor welding is a crucial step in splicing medium-voltage cables, and the quality of the weld directly affects the reliability and safety of power transmission. Poor weld quality can lead to power outages, short circuits, overheating, and other faults. These faults not only affect residents' daily electricity use, increasing maintenance costs and downtime, but can also cause serious economic losses to industrial production and commercial operations, and even endanger public safety. Therefore, resolving cable splicing issues is essential for the stable operation of urban power transmission and distribution networks.

[0003] In related technologies, mechanical crimping or exothermic thermite welding is commonly used to construct conductive paths. While mechanical crimping is convenient, the joint quality is inconsistent, and its performance is affected by factors such as the crimping machine's precision, mold wear, and the operator's skill level, potentially leading to excessive contact resistance and even ablation. Exothermic thermite welding avoids the problem of excessive contact resistance, but it poses a safety hazard due to open flame operations and produces large amounts of toxic fumes, harming the environment and the health of workers.

[0004] To meet the high standards required for modern power grid development, fusion welding technology based on the principle of electromagnetic induction heating has emerged. However, fusion-welded products using this technology suffer from defects such as increased resistance, posing a significant challenge to safety during use. Summary of the Invention

[0005] Therefore, it is necessary to provide a cable splicing device that can improve splicing quality and provide strong technical support for the safe and stable operation of urban power transmission and distribution networks, thereby addressing at least one of the problems in the existing technology.

[0006] This application also provides a cable fusion splicing device, the cable fusion splicing device comprising:

[0007] A welding cavity having two oppositely arranged inlets;

[0008] A cutting mechanism is used to cut the end of the cable to be fused, so that the end of the cable is cut into a tapered shape;

[0009] Two clamping mechanisms are used to clamp the cable, and each clamping mechanism is aligned with each of the inlets; and

[0010] The moving mechanism is connected to both clamping mechanisms. The moving mechanism is used to make the two clamping mechanisms move towards each other to drive the end of the cable into the welding cavity through the corresponding inlet, or to make the two clamping mechanisms move away from each other.

[0011] In one embodiment, the cutting mechanism includes:

[0012] A tool holder, wherein the tool holder has a chamber, and the chamber is conical;

[0013] A cutting element, connected to the blade holder, wherein a portion of the cutting element protrudes from the inner wall of the chamber; and

[0014] An electric motor is connected to the tool holder and is used to drive the tool holder to rotate about its central axis.

[0015] In one embodiment, there are multiple cutting elements, all of which are arranged sequentially at intervals around the central axis of the blade holder.

[0016] In one embodiment, the cable splicing device further includes a position adjustment mechanism connected to the cutting mechanism; the position adjustment mechanism can adjust the position of the cutting mechanism to move the cutting mechanism to a cutting position or an avoidance position; when the cutting mechanism is located at the cutting position, the opening of the chamber is opposite to the position of the clamping mechanism along the moving direction of the clamping mechanism; when the cutting mechanism is located at the avoidance position, the cutting mechanism is completely misaligned with the clamping mechanism along the moving direction of the clamping mechanism.

[0017] In one embodiment, there are two cutting mechanisms and two position adjustment mechanisms, with each of the two position adjustment mechanisms connected to one of the two cutting mechanisms; each cutting mechanism is correspondingly disposed between each of the inlets and each of the clamping mechanisms.

[0018] In one embodiment, the welding cavity is cylindrical, and the two inlets are respectively formed at opposite axial ends of the welding cavity;

[0019] The outer wall of the welding cavity is wound with an electromagnetic induction coil, which is used to connect the power supply.

[0020] The clamping mechanism is provided with a docking part, which is inserted into the inlet, and the outer diameter of the docking part is the same as the inner diameter of the inlet.

[0021] In one embodiment, the welding cavity is formed with an vent hole; the vent hole is located at the top of the welding cavity.

[0022] In one embodiment, the cable splicing device further includes a protective film disposed inside the splicing cavity. The protective film is connected to the inner wall of the splicing cavity and cooperates with the inner wall of the splicing cavity to form an air cavity. An air inlet is formed in the cavity wall of the splicing cavity, and the air inlet communicates with the air cavity.

[0023] In one embodiment, the protective membrane is cylindrical, with its two axially opposite ends respectively connected to the walls of the two inlets. The protective membrane has through holes, which are aligned with the exhaust holes along the thickness direction of the protective membrane. Both the through holes and the exhaust holes communicate with the air chamber.

[0024] In one embodiment, the cable splicing device further includes a base; the splicing cavity, the cutting mechanism, and the moving mechanism are all mounted on the base;

[0025] The moving mechanism includes a lead screw, a guide member, and a driving component; the lead screw is rotatably mounted on the base, and is connected to the driving component, which drives the lead screw to rotate; the guide member is arranged parallel to the lead screw at intervals, and is fixedly connected to the base; the lead screw is a bidirectional lead screw; each of the clamping mechanisms is provided with a screw hole and a guide hole, the lead screw is adapted to the screw hole and passes through the screw hole, and the guide member passes through the guide hole and guides and cooperates with the clamping mechanism; when the driving component drives the lead screw to rotate, it can drive the two clamping mechanisms to move towards each other or away from each other along the guiding direction of the guide member.

[0026] The aforementioned cable fusion splicing device, in use, uses a clamping mechanism to hold the cable to be fused, and a cutting mechanism to cut the cable ends into a tapered shape. Then, a moving mechanism moves the two clamping mechanisms, allowing the cables held by each clamping mechanism to enter the fusion chamber through the inlet. Fusion is performed using electromagnetic induction. Since the ends of the two cables are tapered and axially opposite each other, they gradually approach each other during the fusion process, causing the middle of the cable to heat up and fuse first. As they approach each other, the outer layer of the cable is gradually fused, avoiding the poor heating and cold solder joints in the middle that occur with surface contact fusion in related technologies. This results in a high-quality joint and avoids cold solder joints in the middle of the cable. Therefore, the cable fusion splicing device of this application, using electromagnetic induction fusion, allows the tapered ends of the two cables to slowly approach each other during the fusion process, forming a pattern of first fusing in the middle and then slowly fusing on the outside, ensuring the quality of the inner and outer layer fusion of the cable. Attached Figure Description

[0027] Figure 1 This is a structural view of a cable splicing device according to an embodiment of this application.

[0028] Figure 2 This is another structural view of a cable splicing device according to an embodiment of this application.

[0029] Figure 3 This is a top view of a cable splicing device according to an embodiment of this application.

[0030] Figure 4 for Figure 3 Sectional view of the structure at point AA.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Welding chamber; 11. Inlet; 12. Electromagnetic induction coil; 13. Exhaust port; 14. Air inlet; 20. Cutting mechanism; 21. Tool holder; 211. Chamber; 22. Cutting part; 23. Motor; 24. Flange; 30. Clamping mechanism; 31. Clamping part; 32. Fastener; 33. Connecting part; 40. Moving mechanism; 41. Lead screw; 42. Guide part; 50. Position adjustment mechanism; 51. Support arm; 52. Swing arm; 53. Telescopic part; 60. Base. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] As described in the background section, fusion splicing products in related technologies suffer from defects such as increased resistance and safety hazards. This is because most cables are spliced ​​using a flat joint method. However, during electromagnetic induction, the middle of the cable joint receives little or no heat, resulting in poor splicing quality in this area and subsequent increased resistance, which poses a significant challenge to safety.

[0035] For the reasons mentioned above, this application provides a cable welding device that can improve the welding quality of cables and achieve high-quality splicing of intermediate conductor joints in medium-voltage power cables, providing strong technical support for the safe and stable operation of urban power transmission and distribution networks.

[0036] The following will combine Figures 1 to 4The structure and working principle of a cable splicing device according to an embodiment of this application will be described in detail.

[0037] See Figure 1 This application provides a cable splicing device according to an embodiment. The cable splicing device includes: a splicing cavity 10, a cutting mechanism 20, two clamping mechanisms 30, and a moving mechanism 40. The splicing cavity 10 has two oppositely arranged inlets 11. The cutting mechanism 20 is used to cut the ends of the cables to be spliced, so that the ends of the cables are cut into a tapered shape. The clamping mechanisms 30 are used to clamp the cables, and the ends of the two cables are arranged opposite to each other. Each clamping mechanism 30 is aligned with each inlet 11, and the cable ends clamped by each clamping mechanism 30 face their respective inlet 11. Both clamping mechanisms 30 are connected to the moving mechanism 40, which is used to move the two clamping mechanisms 30 toward each other, so that the ends of the cables enter the splicing cavity 10 through the corresponding inlets 11, or to move the two clamping mechanisms 30 away from each other.

[0038] In the aforementioned cable fusion splicing device, the clamping mechanism 30 clamps the cable to be fused, and the cutting mechanism 20 first cuts the cable ends into a tapered shape. Then, the moving mechanism 40 moves the two clamping mechanisms 30, allowing the cables held by each clamping mechanism 30 to enter the fusion chamber 10 through the inlet 11. Fusion is performed using electromagnetic induction. Since the ends of the two cables are tapered and axially opposite each other, they gradually approach each other during the fusion process. This allows the middle of the cable to be heated and fused first, and the outer fusion of the cable is gradually completed as they approach each other. This avoids the situation in related technologies where surface contact fusion results in poor heating in the middle and a weak weld in the middle. The resulting joint quality is good, and the phenomenon of weak welds in the middle of the cable is avoided. Therefore, the cable fusion splicing device of this application, using electromagnetic induction fusion, allows the tapered ends of the two cables to slowly approach each other during the fusion process, forming a pattern of fusion in the middle first and slow fusion on the outside, ensuring the fusion quality of the inner and outer layers of the cable.

[0039] Please see Figure 1 , Figure 2 and Figure 4For example, the cutting mechanism 20 includes a tool holder 21, a cutting element 22, and a motor 23. The tool holder 21 has a conical chamber 211. The cutting element 22 is connected to the tool holder 21, and a portion of the cutting element 22 protrudes from the inner wall of the chamber 211. The motor 23 is connected to the tool holder 21 and drives the tool holder 21 to rotate about its central axis. The moving mechanism 40 drives the clamping mechanism 30 to move, allowing the end of the cable to enter the chamber 211. During the process of the cable end entering the chamber 211, the motor 23 synchronously drives the tool holder 21 to rotate, and the tool holder 21 drives the cutting element 22 to rotate. The cutting element 22, mounted on the tool holder 21, performs a cutting action, which can grind the end of the cable from a cylindrical shape into a conical shape.

[0040] For example, the number of cutting elements 22 is not limited to one, but may be two, three, four or more. The cutting effect of the cutting mechanism 20 becomes more pronounced as the number of cutting elements 22 increases. When there are multiple cutting elements 22, all cutting elements 22 are arranged sequentially at intervals around the central axis of the tool holder 21. Specifically, all cutting elements 22 are arranged at equal intervals on the wall of the chamber 211.

[0041] For example, the cutting mechanism 20 also includes a flange 24. The flange 24 is connected between the tool holder 21 and the shaft of the motor 23. The shaft of the motor 23 is connected to the tool holder 21 via the flange 24.

[0042] Please see Figure 1 and Figure 2 For example, the cable splicing device also includes a position adjustment mechanism 50. The position adjustment mechanism 50 is connected to the cutting mechanism 20. The position adjustment mechanism 50 can adjust the position of the cutting mechanism 20 so that the cutting mechanism 20 moves to a cutting position or a clearance position. When the cutting mechanism 20 is in the cutting position, the opening of the chamber 211 is opposite to the position of the clamping mechanism 30 along the moving direction of the clamping mechanism 30. Driven by the moving mechanism 40, the clamping mechanism 30 drives the end of the cable to enter the chamber 211 through the opening of the chamber 211, so that the cutting mechanism 20 can cut the end of the cable into a tapered shape. After the end of the cable is cut, the moving mechanism 40 drives the clamping mechanism 30 to move in the opposite direction so that the end of the cable exits the chamber 211 to avoid interference with the position adjustment of the cutting mechanism 20; the position adjustment mechanism 50 drives the cutting mechanism 20 to move to a clearance position, that is, the cutting mechanism 20 is completely misaligned with the clamping mechanism 30 along the moving direction of the clamping mechanism 30. The moving mechanism 40 continues to drive the cable held by the clamping mechanism 30 to move toward the welding chamber 10, so that the end of the cable enters the welding chamber 10 through the inlet 11 for welding operation.

[0043] It should be noted that there are many specific structural forms of the position adjustment mechanism 50. As long as it can adjust the cutting mechanism 20 to the cutting position or the avoidance position, no specific restrictions are made here, and all of them are within the protection scope of this application.

[0044] Please see Figure 1 and Figure 2 In some embodiments, the position adjustment mechanism 50 includes a support arm 51, a swing arm 52, and a telescopic member 53. The support arm 51 is mounted on a base 60, which provides stable support for the support arm 51. One end of the swing arm 52 is rotatably connected to the support arm 51, and the other end is connected to the cutting mechanism 20. Specifically, the other end of the swing arm 52 is connected to a motor 23. The telescopic member 53 includes, but is not limited to, a hydraulic cylinder, a pneumatic cylinder, or a lead screw 41 mechanism. One end of the telescopic member 53 is connected to the middle portion of the support arm 51, and the other end is connected to the support arm 51. When the telescopic member 53 extends or retracts, it can cause the swing arm 52 to swing, thereby enabling the cutting mechanism 20 to swing and adjust to the cutting position or the avoidance position.

[0045] Please see Figure 1 and Figure 2 Based on the aforementioned embodiments, there are two cutting mechanisms 20 and two position adjustment mechanisms 50, with each position adjustment mechanism 50 corresponding to one of the two cutting mechanisms 20. Each cutting mechanism 20 is positioned between each inlet 11 and each clamping mechanism 30. In this way, each cutting mechanism 20 can cut the cable ends held by the corresponding clamping mechanisms 30, enabling cutting of both cable ends and achieving high production efficiency.

[0046] For example, the two inlets 11 and two clamping mechanisms 30 of the welding chamber 10 are arranged coaxially along the moving direction of the moving mechanism 40. Since the two clamping mechanisms 30 and the two inlets 11 are coaxially arranged along the moving direction of the moving mechanism 40, the cables clamped by each clamping mechanism 30 are correspondingly coaxially arranged. The cable axis is parallel to the central axis of the welding chamber 10, specifically coaxially configured. When the moving mechanism 40 drives the two clamping mechanisms 30 to move towards each other, the ends of the cables clamped by the two clamping mechanisms 30 enter the welding chamber 10 from the two inlets 11 respectively, and the ends of the two cables gradually approach each other along the same axis to complete the welding operation.

[0047] Please see Figure 3 and Figure 4For example, the welding cavity 10 is made of a high-temperature resistant material, specifically, for example, ceramic. The welding cavity 10 is cylindrical. An electromagnetic induction coil 12 is wound around the outer wall of the welding cavity 10. The electromagnetic induction coil 12 is connected to a power source. After the power source is turned on, the electromagnetic induction coil 12 cooperates with the cable to create a high-temperature environment inside the welding cavity 10, allowing the cable to be welded. Two inlets 11 are respectively formed at opposite axial ends of the welding cavity 10. The clamping mechanism 30 is provided with a mating part 33, which is inserted into the inlet 11, and the outer diameter of the mating part 33 is the same as the inner diameter of the inlet 11. During the process of the clamping mechanism 30 driving the end of the cable into the welding cavity 10, the mating part 33 enters the welding cavity 10 through the inlet 11. The mating part 33 and the inlet 11 are sealed together, which can prevent external gas from entering the welding cavity 10 and contacting the welding area of ​​the cable, thereby improving the welding quality of the cable and reducing porosity defects at the welding point of the cable.

[0048] Please see Figure 1 , Figure 3 and Figure 4 For example, the welding cavity 10 is provided with vent holes 13. The vent holes 13 are located at the top or other parts of the welding cavity 10. The number and shape of the vent holes 13 are adjusted and set according to actual needs and are not limited here. Waste gas generated at the cable end during the welding process can be discharged to the outside through the vent holes 13, reducing porosity defects at the welding part of the cable end.

[0049] To further improve the welding quality, the cable welding device, for example, also includes a protective film (not shown in the figure). The protective film includes, but is not limited to, a polyurethane grid film. The protective film is disposed within the welding cavity 10, connected to the inner wall of the welding cavity 10, and forms an air cavity with the inner wall of the welding cavity 10. An air inlet 14 is formed in the cavity wall of the welding cavity 10, and the air inlet 14 communicates with the air cavity. Thus, when the cable end welding reaches the latter half, the cable stops moving towards each other. An inert gas source connected to the air inlet 14 begins to supply gas, and the gas enters the air cavity, creating a certain pressure on the protective film. This causes the protective film to wrap around the cable end under certain pressure, thereby further improving the joint quality of the cable welding area, effectively preventing porosity defects in the welding area, and resulting in a denser and higher-quality appearance.

[0050] Based on the aforementioned embodiments, the protective film is cylindrical, and since the welding cavity 10 is cylindrical, the air cavity formed by the protective film and the welding cavity 10 is correspondingly an annular cavity. Specifically, the two opposite ends of the protective film are connected one-to-one to the walls of the two inlets 11, ensuring that the cables entering the welding cavity 10 are all wrapped by the protective film, resulting in good welding quality. Of course, in some embodiments, the opposite ends of the protective film can also be connected to other positions on the inner wall of the welding cavity 10, which is not limited here. To avoid affecting the external exhaust during the welding process, optionally, the protective film is provided with through holes, which are aligned with the exhaust holes 13 along the thickness direction of the protective film, and both the through holes and the exhaust holes 13 communicate with the air cavity. Waste gas generated during the welding process can be discharged externally through the through holes and the exhaust holes 13. Furthermore, when the cable end welding reaches the latter half, an inert gas source connected to the air inlet 14 begins to supply gas, which enters the air cavity, creating pressure on the protective film and exiting through the exhaust holes 13. Gas also enters the welding area through the through-holes, forming an inert gas environment; in addition, under the pressure of the gas, the protective film forms a wrapping pressure on the welding area to isolate external gas and ensure the welding quality of the welding area.

[0051] Of course, as an alternative, the vent 13 can also be located outside the area of ​​the inner wall of the welding cavity 10 covered by the protective film. That is, the protective film avoids the location of the vent 13, so as not to affect the exhaust of exhaust gas during the welding process, and can still retain the function of the protective film in wrapping the welding area of ​​the cable.

[0052] After the ends of the two cables are fused together, the fused cable can be easily removed. Based on the aforementioned embodiment, both the fusion cavity 10 and the clamping mechanism 30 are, for example, configured as detachable splicing structures. After the cable ends are fused, both the fusion cavity 10 and the clamping mechanism 30 are disassembled, and then the cable can be removed. The following description uses the clamping mechanism 30 as an example of a splicing structure; please refer to [link to relevant documentation]. Figure 1 The clamping mechanism 30 includes two clamping members 31 and fasteners 32. The clamping members 31 are, for example, arc-shaped, and both clamping members 31 are adapted to the shape of the cable's outer wall. The two clamping members 31 are fixedly connected by the fasteners 32. The fasteners 32 include, but are not limited to, screws, pins, rivets, etc. After the two clamping members 31 clamp the cable, they are fixedly connected together by the fasteners 32.

[0053] Please see Figure 1 and Figure 2 For example, the cable splicing device also includes a base 60. The base 60 serves as a supporting component for the entire device, providing both fixed and sliding support. It must meet structural strength design requirements without affecting the effective execution of the entire project. The splicing chamber 10, the cutting mechanism 20, and the moving mechanism 40 are all mounted on the base 60.

[0054] The number of moving mechanisms 40 may be one or two. One moving mechanism 40 synchronously drives two cutting mechanisms 20 to move towards each other or away from each other, or each moving mechanism 40 drives its corresponding cutting mechanism 20 to move towards each other or away from each other. In this application, in order to simplify the structure and reduce costs, only one moving mechanism 40 is used, and the following description will use one moving mechanism 40 as a specific example.

[0055] Please see Figure 1 and Figure 2 For example, the moving mechanism 40 includes a lead screw 41, a guide member 42, and a driving component. The lead screw 41 is rotatably mounted on a base 60, which has a bearing seat and a bearing. The lead screw 41 is connected to the bearing. The lead screw 41 is also connected to the driving component, which drives the lead screw 41 to rotate. The guide member 42 is arranged side-by-side with the lead screw 41 at intervals and is fixedly connected to the base 60. Optionally, one or more guide members 42 may be used. In this example, to improve stability, two guide members 42 are used, located on opposite sides of the lead screw 41. The guide member 42 may include, but is not limited to, a guide rod or a guide shaft. The lead screw 41 is a bidirectional lead screw 41. Each clamping mechanism 30 has a screw hole and a guide hole. The lead screw 41 is adapted to the screw hole and passes through it. The guide member 42 passes through the guide hole and guides the clamping mechanism 30. Lubricant is applied to the guide hole to improve guiding performance. When the drive component drives the lead screw 41 to rotate, it can drive the two clamping mechanisms 30 to move towards each other or away from each other along the guide direction of the guide member 42.

[0056] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0057] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0059] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A cable splicing device, characterized in that, The cable splicing device includes: A welding cavity having two oppositely arranged inlets; A cutting mechanism is used to cut the end of the cable to be fused, so that the end of the cable is cut into a tapered shape; Two clamping mechanisms are used to clamp the cable, and each clamping mechanism is aligned with each of the inlets; and The moving mechanism is connected to both clamping mechanisms. The moving mechanism is used to make the two clamping mechanisms move towards each other to drive the end of the cable into the welding cavity through the corresponding inlet, or to make the two clamping mechanisms move away from each other.

2. The cable splicing device according to claim 1, characterized in that, The cutting mechanism includes: A tool holder, wherein the tool holder has a chamber, and the chamber is conical; A cutting element, connected to the blade holder, wherein a portion of the cutting element protrudes from the inner wall of the chamber; and An electric motor is connected to the tool holder and is used to drive the tool holder to rotate about its central axis.

3. The cable splicing device according to claim 2, characterized in that, The cutting components are provided in multiple ways, and all the cutting components are arranged sequentially at intervals around the central axis of the blade holder.

4. The cable splicing device according to claim 2, characterized in that, The cable splicing device further includes a position adjustment mechanism connected to the cutting mechanism. The position adjustment mechanism can adjust the position of the cutting mechanism to move it to a cutting position or an avoidance position. When the cutting mechanism is located at the cutting position, the opening of the chamber is opposite to the position of the clamping mechanism along the moving direction of the clamping mechanism. When the cutting mechanism is located at the avoidance position, the cutting mechanism is completely misaligned with the clamping mechanism along the moving direction of the clamping mechanism.

5. The cable splicing device according to claim 4, characterized in that, There are two cutting mechanisms and two position adjustment mechanisms, and the two position adjustment mechanisms are connected to the two cutting mechanisms in a one-to-one correspondence; each cutting mechanism is correspondingly arranged between each inlet and each clamping mechanism.

6. The cable splicing device according to claim 1, characterized in that, The welding cavity is cylindrical, and the two inlets are respectively formed at opposite axial ends of the welding cavity; The outer wall of the welding cavity is wound with an electromagnetic induction coil, which is used to connect the power supply. The clamping mechanism is provided with a docking part, which is inserted into the inlet, and the outer diameter of the docking part is the same as the inner diameter of the inlet.

7. The cable splicing device according to claim 1, characterized in that, The welding cavity has an exhaust port; the exhaust port is located at the top of the welding cavity.

8. The cable splicing device according to claim 7, characterized in that, The cable splicing device further includes a protective film disposed inside the splicing cavity. The protective film is connected to the inner wall of the splicing cavity and cooperates with the inner wall of the splicing cavity to form an air cavity. An air inlet is formed in the cavity wall of the splicing cavity, and the air inlet communicates with the air cavity.

9. The cable splicing device according to claim 8, characterized in that, The protective membrane is cylindrical, with its two axial ends respectively connected to the walls of the two inlets. The protective membrane has through holes, which are aligned with the exhaust holes along the thickness of the protective membrane. Both the through holes and the exhaust holes are connected to the air chamber.

10. The cable splicing device according to any one of claims 1 to 9, characterized in that, The cable splicing device also includes a base; the splicing cavity, the cutting mechanism, and the moving mechanism are all mounted on the base. The moving mechanism includes a lead screw, a guide member, and a driving component; the lead screw is rotatably mounted on the base, and is connected to the driving component, which drives the lead screw to rotate; the guide member is arranged parallel to the lead screw at intervals, and is fixedly connected to the base; the lead screw is a bidirectional lead screw; each of the clamping mechanisms is provided with a screw hole and a guide hole, the lead screw is adapted to the screw hole and passes through the screw hole, and the guide member passes through the guide hole and guides and cooperates with the clamping mechanism; when the driving component drives the lead screw to rotate, it can drive the two clamping mechanisms to move towards each other or away from each other along the guiding direction of the guide member.

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