Copper wire stranding device capable of avoiding scattering by ending automatic spot welding

Abstract

The invention discloses a copper wire stranding device capable of avoiding scattering by ending automatic spot welding, and relates to the technical field of copper wire stranding devices.The copper wire stranding device comprises a stranding machine, a sliding rail is fixedly connected to the stranding machine, a sliding frame is slidably connected to the sliding rail, a wire harness disc is fixedly connected to the end, away from the stranding machine, of the sliding rail, and a straightening block is fixedly connected to the face, close to the wire harness disc, of the sliding frame; through the arrangement of the length adjustable mechanism and the welding and cutting mechanism, in a traditional mode, a complete stranded wire needs to be welded firstly and then cut, but different cutting machines need to be independently replaced for cutting due to different length requirements, and compared with an existing small factory needing different cutting devices for cutting different produced stranded wires, the cutting efficiency is greatly improved. By arranging the length-adjustable mechanism and the welding and cutting mechanism, the cutting equipment can adapt to different cutting requirements by randomly adjusting a grip, and meanwhile, welding and cutting can be carried out according to specific length requirements, so that unnecessary waste is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of copper wire twisting devices, in particular to a copper wire twisting device capable of automatically spot welding the tail to avoid scattering. Background Art

[0002] The existing copper wire stranding is to twist multiple copper wires together through a mechanical device to form an integral stranded wire, and then workers cut and trim the stranded wire according to the required length for use.

[0003] However, in the process of cutting stranded wires, since copper wires are usually soft, easy to bend and twist, the copper wires are prone to loosening and falling when they are cut after being cut. Operators apply uneven force, speed is too fast or too slow during cutting, resulting in uneven and scattered cutting of the copper wires. The scattered copper wires will make some of the copper wires unable to be reused, increasing resource waste. At the same time, the twisted copper wires will break apart during cutting because the cutting points are not fully fixed, which will cause the workers to be scratched by the broken copper chips. In severe cases, it may even lead to life safety risks.

[0004] In addition, in small factories, when cutting stranded copper wires, fixed cutting is usually performed according to the required strand length. The fixed cutting of copper wire will result in a relatively single strand length in the production of copper wire, and the existing cutting usually requires manual control. If the copper wire stranding machine cannot accurately control the length of different strands, the entire machine needs to be replaced separately when different batches of strands are needed. This not only increases the cost of producing copper wire strands, but also requires additional adjustments and manual intervention when fixed cutting is performed in many small factories, which will extend the production cycle, affect delivery time and customer satisfaction, and also affect product quality and appearance.

[0005] Therefore, a device for automatically spot welding the tail and avoiding scattered copper wire stranding is proposed to solve the above problems. Summary of the invention

[0006] In view of this, the technical problem to be solved by the present invention is to propose a copper wire twisting device with automatic spot welding at the end to avoid scattering, so as to solve the problems of scattered cutting of the copper wire tail end and unadjustable cutting of the twisted wire length in the prior art.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a copper wire stranding device for finishing and automatically spot welding to avoid scattered wires, comprising a stranding machine, a slide rail is fixedly connected to the stranding machine, a slide frame is slidably connected to the slide rail, a wire harness disk is fixedly connected to the end of the slide rail away from the stranding machine, a straightening block is fixedly connected to the side of the slide frame close to the wire harness disk, a clamping device is fixedly installed on the stranding machine, and a copper wire stranding device for finishing and automatically spot welding to avoid scattered wires comprises a length adjustable mechanism and a welding and cutting mechanism; the length adjustable mechanism is arranged on the stranding machine, and the welding and cutting mechanism is arranged on the slide frame;

[0008] The length adjustable mechanism is used to adjust the twisted wires when fixing different lengths;

[0009] The welding and cutting mechanism is used to fix the welding and cutting copper wires to prevent the copper wire strands from becoming scattered.

[0010] Preferably, the length-adjustable mechanism includes a handle, which is rotatably connected to a drive handle, and the drive handle is fixedly connected to a worm at one end away from the handle, and the wire twisting machine is fixedly connected to support plates near both sides of the worm, and the outer surfaces of both ends of the worm are rotatably connected to the support plates.

[0011] Preferably, a worm wheel is meshed on the worm tooth surface, a cylindrical tube is fixedly connected to the middle of the worm wheel, the worm wheel cylindrical tube is rotatably connected to the stranding machine, a threaded hole is opened in the middle of the worm wheel, and a threaded shaft is threadedly connected to the worm wheel threaded hole.

[0012] Preferably, one end of the threaded shaft is slidably connected in the stranding machine, and the other end of the threaded shaft is fixedly connected to the sliding frame. A limiting groove is provided on the threaded shaft, and a limiting nut is slidably connected in the limiting groove. A threaded groove is provided on the stranding machine, and the limiting nut is threadedly connected in the threaded groove.

[0013] Preferably, the welding and cutting mechanism includes a transmission shaft, a telescopic cylinder is fixedly installed on the sliding frame, one end of the transmission shaft is fixedly connected to the telescopic cylinder driving shaft, the other end of the transmission shaft is fixedly connected to a driving block, the bottom of the driving block is fixedly connected to a telescopic shaft, and the end of the telescopic shaft away from the driving block is fixedly connected to a pressing plate.

[0014] Preferably, a return spring is sleeved on the telescopic shaft, one end of the return spring is fixedly connected to the driving block, and the other end of the return spring is fixedly connected to the pressing plate. The driving block is rotatably connected to a driving plate, and the driving plate is rotatably connected to an interlocking block at one end away from the driving block, and the middle part of the interlocking block is rotatably connected to the sliding frame.

[0015] Preferably, the linkage block is fixedly connected to a first telescopic plate at one end away from the driving plate, the first telescopic plate is fixedly connected to a rotating block at one end away from the linkage block, a compression spring is sleeved on the first telescopic plate, one end of the compression spring is fixedly connected to the linkage block, the other end of the compression spring is fixedly connected to the rotating block, a multifunctional slider is symmetrically slidably connected to the sliding frame, and the rotating block is rotatably connected to the multifunctional slider at one end away from the compression spring.

[0016] Preferably, the multifunctional slider is rotatably connected to a second telescopic plate on one side close to the rotating block, a tension spring is sleeved in the middle of the second telescopic plate, both ends of the tension spring are fixedly connected to the second telescopic plate, a connecting block is fixedly connected in the middle of the driving block, a cutting knife is fixedly connected to the bottom end of the connecting block, and both sides of the cutting knife are slidably connected to the sliding frame.

[0017] Compared with the prior art, the present invention provides a copper wire stranding device for automatic spot welding to avoid scattered wires, which has the following beneficial effects:

[0018] 1. Through the length-adjustable mechanism setting, the copper wire stranding welding and cutting with different length requirements can be met through manual adjustment. Moreover, the length-adjustable mechanism setting can accurately control the length of the stranded wire as needed, thereby ensuring that each stranded wire reaches the predetermined length requirement. Through adjustment, the requirements of different customers for product size can be met. Compared with the existing fixed-size stranded wire cutting, this setting is more convenient to use and simpler to operate. There is no need to replace the equipment. Only rotation and regulation are required to meet the cutting requirements of stranded wires of different sizes.

[0019] 2. Through the setting of welding and cutting mechanism, by pressing electric heating, the copper wire can be welded together before cutting, ensuring that no loose copper wire will be scattered during the cutting process. By controlling the copper wire to prevent scattering, the time for cleaning copper wire debris and sundries can be reduced, the production process can be accelerated, and the sundries and debris on the production site can be reduced, the safety risks of the working environment can be reduced, and the health and safety of employees can be guaranteed to keep the production site clean and safe.

[0020] 3. Through the setting of the length-adjustable mechanism and the welding and cutting mechanism, the waste of copper wire can be reduced during welding and cutting. In the traditional method, the complete stranded wire needs to be welded first and then cut. However, due to the requirements of different lengths, different cutting machines need to be replaced separately for cutting. Compared with the existing small factories that require different cutting equipment to cut different production stranded wires, the length-adjustable mechanism and the welding and cutting mechanism can be set by adjusting the handle at will, so that the cutting equipment can adapt to different cutting requirements. At the same time, welding and cutting can also be based on specific length requirements to avoid unnecessary waste, provide greater flexibility and diversity, and enterprises can also quickly adjust the length of the stranded wire according to customer needs to meet market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is an auxiliary schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection relationship of the length adjustable mechanism structure of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 This is a schematic diagram of the structural connection relationship of the welding and cutting mechanism of the present invention;

[0026] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle;

[0027] Figure 7 This is an auxiliary schematic diagram of the structural connection relationship of the welding and cutting mechanism of the present invention;

[0028] Figure 8 For the present invention Figure 7 Enlarged view of center C.

[0029] In the figure:

[0030] 1. Wire stranding machine; 101. Slide rail; 102. Slide frame; 103. Wire harness reel; 104. Clamping device; 105. Straightening block;

[0031] 2. Length adjustable mechanism; 201. Handle; 202. Drive handle; 203. Worm; 204. Support plate; 205. Worm wheel; 206. Threaded shaft; 207. Limiting groove; 208. Limiting nut;

[0032] 3. Welding and cutting mechanism; 301. Transmission shaft; 302. Driving block; 303. Telescopic shaft; 304. Reset spring; 305. Pressing plate; 306. Driving plate; 307. Linkage block; 308. First telescopic plate; 309. Rotating block; 310. Compression spring; 311. Multifunctional slider; 312. Second telescopic plate; 313. Tension spring; 314. Connecting block; 315. Cutting knife. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0035] Example

[0036] Please refer to Figures 1 to 4 As shown:

[0037] In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides a copper wire stranding device for finishing automatic spot welding to avoid scattered wires, including a stranding machine 1, a slide rail 101 is fixedly connected to the stranding machine 1, a slide frame 102 is slidably connected to the slide rail 101, a wire harness disc 103 is fixedly connected to the end of the slide rail 101 away from the stranding machine 1, a straightening block 105 is fixedly connected to the side of the slide frame 102 close to the wire harness disc 103, a clamping device 104 is fixedly installed on the stranding machine 1, and a copper wire stranding device for finishing automatic spot welding to avoid scattered wires includes a length adjustable mechanism 2 and a welding and cutting mechanism 3, the length adjustable mechanism 2 is arranged on the stranding machine 1, and the welding and cutting mechanism 3 is arranged on the slide frame 102;

[0038] The length-adjustable mechanism 2 is used to adjust the strands when fixing different lengths;

[0039] The length-adjustable mechanism 2 includes a handle 201, a driving handle 202 is rotatably connected to the handle 201, a worm 203 is fixedly connected to the end of the driving handle 202 away from the handle 201, and support plates 204 are fixedly connected to both sides of the stranding machine 1 close to the worm 203, and the outer surfaces of both ends of the worm 203 are rotatably connected to the support plates 204;

[0040] A worm wheel 205 is meshed on the tooth surface of the worm 203, a cylindrical barrel is fixedly connected to the middle of the worm wheel 205, the cylindrical barrel of the worm wheel 205 is rotatably connected to the stranding machine 1, a threaded hole is opened in the middle of the worm wheel 205, and a threaded shaft 206 is threadedly connected to the threaded hole of the worm wheel 205;

[0041] One end of the threaded shaft 206 is slidably connected to the stranding machine 1, and the other end of the threaded shaft 206 is fixedly connected to the sliding frame 102. A limit groove 207 is provided on the threaded shaft 206, and a limit nut 208 is slidably connected in the limit groove 207. A thread groove is provided on the stranding machine 1, and the limit nut 208 is threadedly connected in the thread groove.

[0042] Among them: the support plate 204 to the limiting groove 207 are symmetrically arranged on both sides of the stranding machine 1, and a pressure sensor is fixedly arranged in the driving block 302, and the pressure sensor is electrically connected to the telescopic cylinder.

[0043] In the prior art, during the stranded wire cutting process, since copper wire is usually soft, easy to bend and twist, when cutting after cutting and twisting, the copper wire is easily scattered and falls due to the looseness of the stranded copper wire. The operator applies uneven force and the speed is too fast or too slow during cutting, resulting in uneven and scattered cutting of the copper wire. The scattered copper wire will cause some copper wires to be unable to be reused, increasing resource waste. Compared with the prior art, through the implementation of this embodiment, the welding and cutting of copper wire strands can meet the requirements of different lengths through manual operation adjustment, and the length adjustable mechanism 2 can be set to accurately control the length of the stranded wire as needed, thereby ensuring that each stranded wire meets the predetermined length requirement, and the requirements of different customers for product size can be met through adjustment. Compared with the existing fixed-size stranded wire cutting, this setting is more convenient to use and simpler to operate. There is no need to replace equipment, and only rotation and adjustment are required to meet the requirements of stranded wires of different sizes.

[0044] For further examples, please refer to Figures 5 to 8 As shown:

[0045] The welding and cutting mechanism 3 is used to fix the welding and cutting copper wires to prevent the copper wire strands from becoming scattered;

[0046] The welding and cutting mechanism 3 includes a transmission shaft 301, a telescopic cylinder is fixedly installed on the sliding frame 102, one end of the transmission shaft 301 is fixedly connected to the telescopic cylinder driving shaft, the other end of the transmission shaft 301 is fixedly connected to the driving block 302, the bottom of the driving block 302 is fixedly connected to the telescopic shaft 303, and the end of the telescopic shaft 303 away from the driving block 302 is fixedly connected to the pressing plate 305;

[0047] A return spring 304 is sleeved on the telescopic shaft 303, one end of the return spring 304 is fixedly connected to the driving block 302, and the other end of the return spring 304 is fixedly connected to the pressing plate 305. The driving block 302 is rotatably connected to a driving plate 306, and the driving plate 306 is rotatably connected to one end away from the driving block 302 with a linkage block 307, and the middle part of the linkage block 307 is rotatably connected to the sliding frame 102;

[0048] The linkage block 307 is fixedly connected to the first telescopic plate 308 at one end away from the driving plate 306, and the first telescopic plate 308 is fixedly connected to the rotating block 309 at one end away from the linkage block 307. A compression spring 310 is sleeved on the first telescopic plate 308, and one end of the compression spring 310 is fixedly connected to the linkage block 307, and the other end of the compression spring 310 is fixedly connected to the rotating block 309. A multifunctional slider 311 is symmetrically slidably connected to the sliding frame 102, and the rotating block 309 is rotatably connected to the multifunctional slider 311 at one end away from the compression spring 310;

[0049] A second telescopic plate 312 is rotatably connected to the multifunctional slider 311 near the rotating block 309. A tension spring 313 is sleeved in the middle of the second telescopic plate 312. Both ends of the tension spring 313 are fixedly connected to the second telescopic plate 312. A connecting block 314 is fixedly connected to the middle of the driving block 302. A cutting knife 315 is fixedly connected to the bottom end of the connecting block 314. Both sides of the cutting knife 315 are slidably connected to the sliding frame 102.

[0050] Wherein: the driving plate 306 to the rotating block 309 and the tension spring 313 and the connecting block 314 are symmetrically arranged on the sliding frame 102, and the multifunctional sliding block 311 slides symmetrically at the bottom of the sliding frame 102;

[0051] The multifunctional sliders 311 slide symmetrically on the slide frame 102, and the multifunctional sliders 311 on both sides are respectively connected to the wires. When the multifunctional sliders 311 clamp the copper wires, the copper wires are quickly heated due to the short circuit caused by the connection of the wires, so that the copper wires are heated and cast into one body.

[0052] In the prior art, in small factories, when cutting stranded copper wires, fixed cutting is usually performed according to the required strand length. The fixed cutting of copper wire will result in a relatively single strand length in the production of copper wire, and the existing cutting usually requires manual control. If the copper wire stranding machine cannot accurately control the length of different strands, the entire machine needs to be replaced separately when different batches of strands are needed. This not only increases the cost of producing copper wire strands, but also requires additional adjustments and manual intervention when fixed cutting is performed in many small factories, resulting in an extension of the production cycle, affecting delivery time and customer satisfaction, and also affecting the quality and appearance of the product. Compared with the prior art, through the implementation of this embodiment, the copper wires can be welded together by pressing electric heating before cutting, ensuring that no loose copper wires will be scattered during the cutting process. By controlling the copper wire to prevent scattering, the time for cleaning copper wire debris and debris can be reduced, speeding up the production process, and also reducing debris and debris at the production site, reducing the safety risks of the working environment, and ensuring the health and safety of employees, and keeping the production site clean and safe.

[0053] Everything in the above example works like this:

[0054] In the initial state: the telescopic cylinder is not started, and the cutting knife 315 is located above the copper wire;

[0055] The following is the working process of the length adjustable mechanism 2 for adjusting the stranded wires at different fixed lengths:

[0056] When in use, the operator first adjusts the length adjustable mechanism 2 according to the required copper wire length. Figure 3 As shown in the figure, the handle 201 is rotated clockwise around the driving handle 202. Because the driving handle 202 is fixedly connected to the middle of the worm 203, and the outer surfaces of both ends of the worm 203 are rotatably connected to the support plate 204, the driving handle 202 is rotated clockwise to drive the worm 203 to start rotating clockwise in the support plate 204. At this time, because the tooth surface below the worm 203 is meshed with the worm wheel 205, and the worm wheel 205 is rotatably connected to the stranding machine 1, the worm 203 is driven to rotate clockwise. The wheel 205 starts to rotate counterclockwise. At the same time, because a threaded hole is provided in the middle of the worm wheel 205, and the threaded hole is threadedly connected to the threaded shaft 206, and one end of the threaded shaft 206 is rotatably connected to the sliding frame 102, and the other end is slidably connected to the stranding machine 1, the threaded shaft 206 starts to rotate to the left under the threaded connection of the threaded shaft 206. Furthermore, because a limiting nut 208 is slidably provided in the limiting groove 207 provided on the threaded shaft 206, and the limiting nut 208 is threadedly connected to the stranding machine 1 , the threaded shaft 206 is stably slid to the left side under the limiting effect of the limiting nut 208 on the limiting groove 207. Compared with the existing adjustment using a telescopic rod, this mechanism is more stable and noise-reducing. At the same time, it can adjust any length to reach a self-locking state. Because the length adjustable mechanism 2 is symmetrically arranged on both sides of the stranding machine 1 through a connecting rod and is interconnected with the sliding frame 102, the sliding frame 102 can be adjusted to the required length of the stranded wire by adjusting the length adjustable mechanism 2. Through the setting of the length adjustable mechanism 2, through the setting of the length adjustable mechanism 2, the copper wire stranding welding and cutting with different length requirements can be met through manual operation adjustment. Moreover, through the setting of the length adjustable mechanism 2, the length of the stranded wire can be accurately controlled as needed, thereby ensuring that each stranded wire meets the predetermined length requirement, and the requirements of different customers for product size can be met through adjustment. Compared with the existing fixed-size stranded wire cutting, this setting is more convenient to use and simpler to operate. There is no need to replace the equipment. Only rotation and regulation are required to meet the requirements of stranded wires of different sizes.

[0057] Please refer to the above working process Figures 1 to 4 .

[0058] The following is the working process of the welding and cutting mechanism 3 for fixing the welding and cutting copper wire to prevent the copper wire strands from being scattered:

[0059] When using, Figure 1 As shown, the copper stranded wire is clamped in the clamping device 104 under the existing setting operation. Before the clamping device 104 is twisted, the operator starts the telescopic cylinder. By starting the telescopic cylinder to stretch, the copper stranded wire is clamped in the clamping device 104. Figure 6 As shown, because the driving shaft of the telescopic cylinder is fixedly connected to the transmission shaft 301, the transmission shaft 301 will be driven to start driving the driving block 302 to move downward through the downward extension of the driving shaft. At this time, because the lower surface of the driving block 302 and the telescopic shaft 303 are fixed to each other, and the telescopic shaft 303 is fixed to the driving block 302 and the pressing plate 305 through the return spring 304, when the telescopic shaft 303 begins to press to the surface of the copper wire under the pressure of the pressing plate 305, the telescopic shaft 303 shortens and the return spring 304 starts to contract. At this time, because the driving plate 306 to the rotating block 309 are symmetrically arranged and have the same working principle, only the left group is described, because the driving plate 306 rotates on the driving block 302, and the driving plate 306 is away from the driving One end of the block 302 is rotatably connected to the linkage block 307, and the middle part of the linkage block 307 rotates on the sliding frame 102, so the downward movement of the driving block 302 will cause the driving plate 306 to rotate on the driving block 302 in a clockwise direction, and at this time, the driving plate 306 will drive the linkage block 307 to rotate counterclockwise on the sliding frame 102. At the same time, because the bottom of the linkage block 307 is fixed to the first telescopic plate 308, and the first telescopic plate 308 is fixedly connected to the rotating block 309 away from the end of the linkage block 307, and the rotating block 309 is rotatably connected to the multi-functional slider 311, the linkage block 307 rotates counterclockwise on the sliding frame 102, which will drive the first telescopic plate 308 to start to stretch and drive the compression spring 310 to stretch.

[0060] At this time, the rotating block 309 will drive the multifunctional slider 311 to start sliding to the right. Because the multifunctional slider 311 slides symmetrically on the sliding frame 102, and the multifunctional sliders 311 on both sides are respectively connected to the wires, when the multifunctional slider 311 clamps the copper wire, the copper wire is quickly heated because the wire is in the same electrical circuit. When the copper wire is heated and melted together, the hardness of the copper surface decreases due to the increase in temperature. At this time, a temperature sensor is provided on the driving block 302. When the temperature inside the temperature sensor reaches the set threshold, a signal is transmitted to the controller through the back point of the temperature sensor, and the telescopic cylinder is extended again under the control of the controller. At this time, Figure 8As shown, because the connecting block 314 is fixedly connected to the driving block 302, when the driving block 302 drives the pressing plate 305 to press on the surface of the copper wire, the telescopic cylinder is controlled by the controller under the electrical action of the pressure sensor to operate simultaneously. When the copper wire is melted under the multifunctional slider 311, the telescopic cylinder is started again through the feedback of the pressure sensor. At this time, the cutting knife 315 gradually starts to cut the copper wire from above the copper wire. When the cutting knife 315 cuts the copper wire as the telescopic cylinder operates, the telescopic cylinder is fed back again through the pressure sensor to operate. The cutting knife 315 cuts and the multifunctional slider 311 melts the copper wire, which not only prevents the copper wire from being scattered when twisting, but also welds the copper wire together before cutting it, ensuring that no loose copper wire will fall off during the cutting process. By controlling the copper wire from being scattered, the time for cleaning copper wire scraps and debris can be reduced, the production process can be accelerated, and the debris and scraps on the production site can be reduced, reducing the safety risks of the working environment, ensuring the health and safety of employees, and keeping the production site clean and safe.

[0061] Please refer to the above working process Figures 5 to 8 .

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A copper wire twisting device for finishing with automatic spot welding to prevent scattering, used to prevent scattering of copper wires during twisting, comprising a twisting machine (1), a slide rail (101) fixedly connected to the twisting machine (1), a slide frame (102) slidably connected to the slide rail (101), a wire harness disc (103) fixedly connected to the end of the slide rail (101) away from the twisting machine (1), a straightening block (105) fixedly connected to the side of the slide frame (102) close to the wire harness disc (103), a clamping device (104) fixedly installed on the twisting machine (1), characterized in that: The device for automatically spot welding and avoiding scattered copper wire stranding comprises a length-adjustable mechanism (2) and a welding and cutting mechanism (3), wherein the length-adjustable mechanism (2) is arranged on a stranding machine (1), and the welding and cutting mechanism (3) is arranged on a sliding frame (102); The length adjustable mechanism (2) is used to adjust the twisted wires when fixing different lengths; The welding and cutting mechanism (3) is used to fix the welded and cut copper wires to prevent the copper wire strands from becoming untidy.

2. The device for automatically spot welding and avoiding scattered copper wire stranding according to claim 1, characterized in that: The length adjustable mechanism (2) comprises a handle (201), a driving handle (202) being rotatably connected to the handle (201), a worm (203) being fixedly connected to one end of the driving handle (202) away from the handle (201), and support plates (204) being fixedly connected to both sides of the wire twisting machine (1) close to the worm (203), and the outer surfaces of both ends of the worm (203) being rotatably connected to the support plates (204).

3. The device for automatically spot welding and avoiding scattered copper wire stranding according to claim 2, characterized in that: A worm wheel (205) is meshed on the tooth surface of the worm (203), a cylindrical tube is fixedly connected to the middle of the worm wheel (205), the cylindrical tube of the worm wheel (205) is rotatably connected to the stranding machine (1), a threaded hole is opened in the middle of the worm wheel (205), and a threaded shaft (206) is threadedly connected to the threaded hole of the worm wheel (205).

4. The device for automatically spot welding and avoiding scattered copper wire stranding according to claim 3 is characterized in that: One end of the threaded shaft (206) is slidably connected to the stranding machine (1), and the other end of the threaded shaft (206) is rotatably connected to the sliding frame (102). A limit groove (207) is provided on the threaded shaft (206), and a limit nut (208) is slidably connected in the limit groove (207). The stranding machine (1) is provided with a thread groove, and the limit nut (208) is threadedly connected in the thread groove.

5. The device for automatically spot welding and avoiding scattered copper wire stranding according to claim 1, characterized in that: The welding and cutting mechanism (3) comprises a transmission shaft (301), a telescopic cylinder is fixedly mounted on the sliding frame (102), one end of the transmission shaft (301) is fixedly connected to the driving shaft of the telescopic cylinder, the other end of the transmission shaft (301) is fixedly connected to a driving block (302), a telescopic shaft (303) is fixedly connected to the bottom of the driving block (302), and a pressing plate (305) is fixedly connected to one end of the telescopic shaft (303) away from the driving block (302).

6. The device for automatically spot welding and avoiding scattered copper wire stranding according to claim 5, characterized in that: A return spring (304) is sleeved on the telescopic shaft (303), one end of the return spring (304) is fixedly connected to the driving block (302), and the other end of the return spring (304) is fixedly connected to the pressing plate (305). The driving block (302) is rotatably connected to a driving plate (306), and the driving plates (306) are stacked and arranged on both sides of the telescopic shaft (303). One end of the driving plate (306) away from the driving block (302) is rotatably connected to a linkage block (307), and the middle part of the linkage block (307) is rotatably connected to the sliding frame (102).

7. The device for automatically spot welding and avoiding scattered copper wire strands according to claim 6, characterized in that: The end of the linkage block (307) away from the driving plate (306) is fixedly connected to the first telescopic plate (308), the end of the first telescopic plate (308) away from the linkage block (307) is fixedly connected to the rotating block (309), the first telescopic plate (308) is sleeved with a compression spring (310), one end of the compression spring (310) is fixedly connected to the linkage block (307), and the other end of the compression spring (310) is fixedly connected to the rotating block (309), and a multifunctional slider (311) is symmetrically slidably connected to the sliding frame (102), and the end of the rotating block (309) away from the compression spring (310) is rotatably connected to the multifunctional slider (311).

8. The device for automatically spot welding and avoiding scattered copper wire stranding according to claim 7, characterized in that: A second telescopic plate (312) is rotatably connected to the multifunctional slider (311) at one side close to the rotating block (309); a tension spring (313) is sleeved in the middle of the second telescopic plate (312); both ends of the tension spring (313) are fixedly connected to the second telescopic plate (312); a connecting block (314) is fixedly connected to the middle of the driving block (302); the connecting block (314) is arranged between the driving plates (306) at both sides; a cutting knife (315) is fixedly connected to the bottom end of the connecting block (314); and both sides of the cutting knife (315) are slidably connected to the sliding frame (102).

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