A wire butt welding device and a wire butt welding method

Abstract

A kind of wire butt welding device and wire butt welding method, wire butt welding device includes adjacent rotation tray (1) and butt welding machine (2), and the butt welding machine (2) is equipped with material receiving rod (5), butt welding machine can be switched by rotation and make material receiving rod between butt welding station (B), material receiving station (A) and blanking station (C), rotation tray is equipped with multiple circumferentially distributed installation parts, installation part can rotate around the center axis of rotation tray, the central part of rotation tray (1) is equipped with push mechanism (4) for pushing wire coil material (3) from installation part into material receiving rod (5).Wire butt welding device and wire butt welding method realize the semi-automatic wire butt welding operation, can realize wire automatic feeding, automatic turnover, automatic unloading, reduce the amount of manual labor, reduce the security risk, improve production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of wire rod welding technology, and in particular to a wire rod butt welding device and a wire rod butt welding method. Background Technology

[0002] In the production of pipe fittings or wire rods, in order to obtain a sufficiently long and continuous wire rod, it is often necessary to butt weld the ends of different sections of the wire rod together. Currently, the butt welding in the production process is generally done manually by welding the ends of two coiled wire rods together, grinding them, and then manually flipping them to form a single coil before the next welding. Since the wire rod coils are generally heavy and prone to loosening, the manual flipping process is not only labor-intensive but also prone to causing safety accidents.

[0003] It can be seen that the traditional wire rod butt welding method is not only inefficient and labor-intensive, but also poses safety risks. Therefore, it is necessary to propose a new wire rod butt welding method. Summary of the Invention

[0004] To address the problems of high labor intensity, safety risks, and low efficiency in wire rod welding in existing technologies, this invention provides a wire rod welding device that enables automatic feeding, automatic turning, and automatic unloading, achieving a high degree of automation, improving work efficiency, and reducing the labor intensity of operators.

[0005] This invention provides a wire rod butt welding device, including a rotating material tray and a butt welding machine arranged adjacent to each other. The butt welding machine is provided with a receiving rod, which can be switched between a butt welding station, a receiving station and a unloading station by rotation. The rotating material tray is provided with a plurality of circumferentially distributed mounting parts, which can rotate around the central axis of the rotating material tray. The central part of the rotating material tray is provided with a pushing mechanism for pushing the wire rod coil from the mounting part into the receiving rod.

[0006] In the above technical solution, the wire rod butt welding device can realize semi-automatic butt welding operation. By rotating the material tray and the butt welding material machine, it can realize automatic feeding, automatic turning and automatic unloading, reduce manual labor, reduce safety risks, improve production efficiency, and realize continuous welding of heavy coils.

[0007] Preferably, the system also includes a wire rod butt welding machine, which is located at the butt welding station.

[0008] Preferably, the receiving rod includes two spaced and parallel rods, which are independent of each other and can rotate synchronously around the same axis.

[0009] Preferably, the mounting part is provided with two parallel mounting rods that are equidistant from the two rods.

[0010] Preferably, the pushing mechanism includes a pushing rod and a pushing drive component. When the mounting part rotates, the pushing mechanism remains stationary so that one end of the pushing rod always faces the receiving station. The pushing drive component drives the pushing rod to perform intermittent extension and retraction movements.

[0011] Preferably, the welding station and the unloading station are located on both sides of the receiving station.

[0012] Preferably, the wire rod welding machine includes a horizontal track and a sliding platform slidably connected to the horizontal track. A welding mechanism and a descaling mechanism are fixedly arranged facing each other on the sliding platform. The descaling mechanism includes a stamping component, a grinding component, a sliding frame, and a vertical track. The vertical track is fixed to the sliding platform. The stamping component and the grinding component are fixed to the sliding frame and slidably connected to the vertical track through the sliding frame. The grinding component is located below the stamping component.

[0013] Preferably, the wire rod welding machine further includes an unloading component, which includes a pulling hook, a pulling cylinder, an unloading track, and an unloading hook. The pulling cylinder is fixed to the upper end of the vertical track, and the pulling hook is fixed to the telescopic rod of the pulling cylinder. One end of the hook faces the area between the welding mechanism and the descaling mechanism. The unloading track is installed horizontally at the upper end of the welding mechanism, and the unloading hook is slidably connected to the unloading track. The range of motion of the unloading hook intersects with the range of motion of the pulling hook.

[0014] A wire rod butt welding device includes a rotating material tray, a butt welding material machine, and a wire rod butt welding machine for welding. The wire rod butt welding machine includes a welding mechanism and a descaling mechanism. The descaling mechanism includes a stamping component, a grinding component, a sliding frame, and a vertical track. The vertical track is fixed on a sliding platform. The stamping component and the grinding component are fixed on the sliding frame and slidably connected to the vertical track through the sliding frame. The grinding component is located below the stamping component.

[0015] Preferably, the stamping component includes an upper left punch, a lower left punch, an upper right punch, and a lower right punch, which simultaneously stamp and form a circular stamping area.

[0016] Preferably, the grinding component includes a C-shaped plate, a grinding bracket, a friction wheel, and a sanding belt. The grinding bracket is fixedly connected to the C-shaped plate, and the friction wheel is provided on the grinding bracket. The sanding belt is installed on the friction wheel. The C-shaped plate can drive the grinding bracket to rotate around the axis of the C-shaped plate. The horizontal movement of the sliding platform and the vertical movement of the sliding frame can enable the welding mechanism, the stamping component, and the grinding component to move sequentially to the workpiece position for operation.

[0017] Preferably, the grinding component further includes a grinding clamping and fixing component and a grinding drive component. The grinding drive component includes a grinding drive motor, drive wheels, and a timing belt. There are four drive wheels distributed on the outer side of the C-shaped piece. The wheel surfaces of the four drive wheels abut against the outer wall of the C-shaped piece and form a limiting effect on the C-shaped piece. The output end of the grinding drive motor is connected to one of the drive wheels. The multiple drive wheels are connected to each other by a timing belt. The outer wall of the C-shaped piece is covered with a rubber layer. The grinding clamping and fixing component is used to clamp the wire blank to be ground. The clamping and fixing component includes two grinding clamping units distributed on both sides of the grinding component.

[0018] Preferably, the stamping component includes a first clamping assembly, which includes a left clamping unit and a right clamping unit. The left clamping unit includes a lower left fixed plate and an upper left movable plate, and the right clamping unit includes a lower right fixed plate and an upper right movable plate. The upper left punch is mounted on the upper left movable plate, the lower left punch is mounted on the lower left fixed plate, the upper right punch is mounted on the upper right movable plate, and the lower right punch is mounted on the lower right fixed plate. The center line connecting the upper left and lower left punches and the center line connecting the upper right and lower right punches form a cross shape. V-shaped guide grooves are provided on the lower left fixed plate, the upper left movable plate, the lower right fixed plate, and the upper right movable plate. The bottom of the V-shaped guide groove has an arc-shaped portion that conforms to the surface of the wire blank.

[0019] A method for butt welding of wire rods, based on the above-mentioned wire rod butt welding apparatus, includes the following steps: S1: Multiple circumferentially distributed wire rod coils are pre-placed on a rotating material tray; S2: Rotate the welding material machine to the receiving station and feed the No. 1 wire rod coil into the receiving rod of the welding material machine; S3: The welding machine rotates the No. 1 wire rod coil to the welding station and welds the tail of the No. 1 wire rod coil to the head of the No. 2 wire rod coil on the rotating plate. S4: Rotate the welding material machine to the receiving station again, and at the same time rotate the material tray to rotate the No. 2 wire rod coil to the receiving station; S5; The rotating tray feeds the No. 2 wire rod coil into the receiving rod of the welding material machine; S6: Repeat steps S3-S5 above to complete the butt welding operation of wire rod coils 3#-n# in sequence; S7: The welding machine rotates to the unloading station and unloads the 1#-n# wire rod coils that have completed the welding connection as a whole.

[0020] The butt welding method of this invention realizes semi-automatic butt welding operation. By rotating the material tray and the butt welding material machine, automatic feeding, automatic turning and automatic unloading can be realized, reducing manual labor, reducing safety risks, improving production efficiency, and realizing continuous welding of heavy coils.

[0021] Preferably, in step S5, before the rotating material tray feeds the No. 2 wire rod coil into the receiving rod of the welding material machine, the rotating receiving rod is used to tighten the wire rod between the No. 1 wire rod coil and the No. 2 wire rod coil.

[0022] In the above technical solution, tightening involves winding the loose wire blanks between the No. 1 wire blank coil and the No. 2 wire blank coil after butt welding, so that they are wound around the No. 1 wire blank coil and rolled into a coil. This ensures the integrity of the two butt-welded wire blank coils and prevents the loose wire blanks between the wire blank coils from affecting transportation or being damaged by collisions with other structures during subsequent transportation and processing.

[0023] Preferably, in step S4, while rotating the No. 2 wire rod coil to the receiving station, the receiving rod is rotated to simultaneously tighten the wire rods between the No. 1 wire rod coil and the No. 2 wire rod coil.

[0024] In the above technical solution, tightening involves winding the loose wire blanks between the #1 and #2 wire blank coils after butt welding, so that they are wound onto the #1 wire blank coil and rolled into a coil. This ensures the integrity of the two butt-welded wire blank coils and prevents the loose wire blanks from affecting transportation or being damaged by collisions with other structures during subsequent transportation and processing. Simultaneous tightening while rotating the #2 wire blank coil to the receiving station also prevents the loose wire blanks from being bent or damaged, or clamped and bent, during the rotation of the rotating material tray and the butt welding machine, thus improving product quality.

[0025] In summary, the technical solution of this invention has at least the following beneficial effects: 1. By designing a rotating material tray, multiple coils of wire rod can be pre-placed on the tray. The rotation of the tray enables rapid and automatic feeding during the welding process, improving feeding efficiency; 2. After welding two coils of wire rod, the receiving rod on the welding machine can automatically flip the coils, reducing manual flipping labor and ensuring reliable flipping, thus reducing safety risks; 3. It improves the welding efficiency of the wire rods; 4. It can tighten the wire rods between coils #1 and #2, preventing loose wire rods from affecting transportation or being damaged during subsequent transport and processing. 5. Damage caused by collisions with other structures; 6. Simultaneous tightening can be performed while rotating the No. 2 wire rod coil to the receiving station, preventing loose wire from being bent or damaged or clamped and bent during the rotation of the rotating material tray and the butt welding machine, thus improving product quality; 7. The butt welding machine can simultaneously complete multiple processes such as butt welding of the wire rod, scar punching and cleaning, grinding, and unloading, simplifying the process flow and improving production efficiency; 8. Through four synchronous punching punches, circumferentially protruding scars at the welding part of the wire rod can be removed in one go, improving scar treatment efficiency; 9. During operation, the wire rod does not need to be transferred, avoiding the time-consuming and labor-intensive problems and the easy damage caused by transferring the wire rod between processes. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the initial state of the overall structure of the present invention; Figure 2 This is a schematic diagram of the state of the welding material machine rotating to the receiving station and corresponding to the No. 1 wire rod coil in this invention; Figure 3 This is a schematic diagram of the feeding mechanism 94 of the present invention feeding the No. 1 wire rod coil into the butt welding machine; Figure 4 This is a schematic diagram of the welding material machine in the welding position to perform welding operations according to the present invention; Figure 5 This is a schematic diagram showing the state of the butt welding machine driving the wire rod coil to flip at the receiving station after the butt welding connection of the present invention. Figure 6 This is a schematic diagram showing the state in which all the wire rod coils on the rotating material tray of the present invention are transferred to the butt welding material machine; Figure 7 This is a schematic diagram showing the state of the welding machine rotating to the unloading station after all welding operations have been completed in this invention; Figure 8 This is a three-dimensional view of the overall structure of the wire rod welding machine in this invention; Figure 9 This is a front view of the scar removal mechanism of the present invention; Figure 10 This is a top view of the wire rod welding machine in this invention; Figure 11 This is a rear view of the wire rod welding machine in this invention; Figure 12 This is a three-dimensional view of the scar removal mechanism of the present invention; Figure 13 This is a side view of the stamping component of the present invention; Figure 14 This is the present invention. Figure 12 A magnified view of a section at point D; Figure 15 This is a schematic diagram of the cross-sectional structure of the four punches of the present invention along the stamping direction; Figure 16 This is a schematic diagram of the structural distribution of the stamping components of the present invention; Figure 17 This is the present invention. Figure 12 A magnified view of a section at point E in the middle; Figure 18 This is a schematic diagram of the C-shaped plate and drive wheel structure of the present invention; Figure 19 This is the present invention. Figure 8 A magnified view of a section at point F.

[0027] In the diagram: 100. Wire rod butt welding machine; 1. Horizontal rail; 2. Sliding platform; 3. Welding mechanism; 30. Workbench; 31. First straightening component; 32. Second straightening component; 33. Lower positioning die; 34. Upper positioning die; 35. Shearing component; 4. Stamping component; 41. Upper left punch; 42. Lower left punch; 43. Upper right punch; 44. Lower right punch; 45. First clamping assembly; 451. Lower left fixed plate; 452. Upper left movable plate; 453. Lower right fixed plate; 454. Upper right movable plate; 46. Second clamping and fixing component; 461. Lower fixed die; 462. Upper movable die; 463. Arc groove; 464. V-shaped guide groove; 465. Upper guide plate; 466. Lower guide plate; 5. Stamping... Grinding components; 51. C-shaped plate; 52. Grinding bracket; 53. Friction wheel; 54. Sanding belt; 55. First drive motor; 56. Drive wheel; 57. Lower fixed mold; 58. Upper movable mold; 59. Third drive component; 510. V-shaped guide groove; 6. Sliding frame; 7. Vertical track; 81. Pulling hook; 81.1. Connecting part; 81.2. Moving part; 82. Pulling cylinder; 83. Unloading track; 84. Unloading hook; 91. Rotary material tray; 92. Butt welding machine; 93. Wire rod coil; 94. Pushing mechanism; 94.1. Pushing rod; 94.2 Pushing drive component; 95. Receiving rod; 96. Mounting rod; 97. Mounting part; A. Receiving station; B. Butt welding station; C. Unloading station. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1: See Appendix Figures 1 to 7 A wire rod butt welding device includes a rotating material tray 91 and a butt welding machine 92. The butt welding machine 92 is equipped with a receiving rod 95. The butt welding machine 92 can switch the receiving rod 95 between a butt welding station B, a receiving station A, and a unloading station C by rotation. The receiving rod 95 includes two spaced and parallel rods. The two rods are independent of each other and can rotate synchronously around the same axis. The rotating material tray 91 has a plurality of mounting parts 97 on its edge for placing the wire rod coil 93. The mounting parts 97 can rotate around the edge of the coil. The central axis of the rotating material tray 91 rotates. The mounting part 97 is provided with two parallel mounting rods 96 that are equidistant from the two rods. The center of the rotating material tray 91 is provided with a pushing mechanism 94, which includes a pushing rod 94.1 and a pushing drive component 94.2. When the mounting part 97 rotates, the pushing mechanism 94 remains stationary so that one end of the pushing rod 94.1 always faces the receiving station A. The pushing drive component 94.2 drives the pushing rod 94.1 to perform intermittent extension and retraction movements.

[0030] To facilitate the transfer of wire rod coils 93 from the rotating material tray 91 to the butt welding machine 92, this invention includes a pushing mechanism 94 at the center of the rotating material tray 91. The pushing mechanism 94 comprises a pushing rod 94.1 and a pushing drive component 94.2. One end of the pushing rod 94.1 faces the receiving station A, and the pushing drive component 94.2 drives the pushing rod 94.1 in intermittent extension and retraction. This pushing structure automatically delivers the wire rod coils 93 from the rotating material tray 91 to the butt welding machine 92, reducing manual labor and ensuring continuous butt welding connections.

[0031] To reduce the floor space required for the entire welding operation, this invention distributes the welding station B and the unloading station C on either side of the receiving station A. This arrangement reduces the transfer of materials between different stations during the entire operation, thereby improving production efficiency.

[0032] In this invention, the rotation of the two rods of the receiving rod 95 is driven by the same driving component. This reduces equipment costs, facilitates layout, better ensures the synchronization of the rotation of the two rods, and guarantees stability during the flipping process of the wire rod coil 93.

[0033] Example 2: Based on Embodiment 1, the wire rod butt welding device further includes a wire rod butt welding machine 100, which is located at the butt welding station B. The wire rod butt welding machine 100 can centrally process the butt welding operation, weld stamping and descaling operation, and weld grinding operation of the wire rod. (See attached diagram) Figure 8-19 It includes a horizontal track 1 and a sliding platform 2 slidably connected to the horizontal track 1. The sliding platform 2 is fixed with a welding mechanism 3 and a scar removal mechanism arranged in opposite directions. It can be seen that the welding mechanism 3 and the scar removal mechanism are an integral unit and can slide horizontally along the horizontal track 1 as a whole.

[0034] The scar removal mechanism includes a stamping component 4, a grinding component 5, a sliding frame 6, and a vertical track 7. The vertical track 7 is fixed on the sliding platform 2. The stamping component 4 and the grinding component 5 are fixed on the sliding frame 6 and slidably connected to the vertical track 7 through the sliding frame 6. It can be seen that the stamping component 4 and the grinding component 5 are connected as a whole through the sliding frame 6. The two can slide up and down along the vertical track 7 as a whole. The grinding component 5 is located below the stamping component 4, and the working areas of the two are located in the same vertical plane. The stamping component 4 includes an upper left punch 41, a lower left punch 42, an upper right punch 43, and a lower right punch 44. The upper left punch 41, lower left punch 42, upper right punch 43, and lower right punch 44 stamp synchronously and form a circular stamping area. The stamping direction of the four punches is along the axis of the wire blank. The grinding component 5 includes a C-shaped plate 51, a grinding bracket 52, friction wheels 53, and a sanding belt 54. The grinding bracket 52 is fixedly connected to the C-shaped plate 51. The grinding bracket 52 is provided with three circumferentially distributed friction wheels 53. The sanding belt 54 is installed on the friction wheels 53. The C-shaped plate 51 can drive the grinding bracket 52 to rotate around the axis of the C-shaped plate 51. The horizontal movement of the sliding platform 2 and the vertical movement of the sliding frame 6 can move the welding mechanism 3, the stamping component 4, and the grinding component 5 to the workpiece position in sequence for operation.

[0035] This invention designs an integrated butt welding machine that centrally processes multiple steps, including wire rod butt welding, weld stamping and descaling, and weld grinding. The welding components in the welding mechanism 3 can adopt existing structures capable of welding wire rod joints. The butt welding machine is equipped with a horizontal track 1 and a vertical track 7. The welding mechanism 3 can move horizontally, while the stamping component 4 and grinding component 5 can move horizontally along the horizontal track 1 together with the welding mechanism 3, or they can move vertically along the vertical guide rail individually. The wire rods in the above equipment can be fixed using automated equipment, or manually before the above operations, the ends of the two wire rods to be welded can be fixed to the fixing fixtures on the wire rod butt welding machine. During the above operations, the position of the wire blank is fixed. Each action is achieved by moving the various working parts on the welding machine. Specifically, through a combination of horizontal and vertical movements, the working parts are moved to the location of the wire blank scar for operation. First, the welding mechanism 3 moves to the wire blank position, aligns the ends of the two wire blanks, and then performs butt welding. Since excess solder remains at the weld seam after welding, this excess solder generally protrudes from the surface of the wire blank. Second, the sliding platform 2 and the sliding frame 6 move, causing the stamping component 4 to move to the wire blank scar location. The four punches of the stamping component 4 simultaneously stamp the excess solder protruding from the wire blank, achieving rough processing of the excess solder. After stamping, most of the excess solder is removed, but... A small amount of solder (burrs, flash, etc.) will remain, and stamping removal cannot guarantee the surface smoothness of the weld. Finally, the sliding frame 6 moves upward, causing the grinding component 5 to move to the location of the wire blank scar. The wire blank enters the C-shaped plate 51 through the opening, and then the C-shaped plate 51 drives the abrasive belt 54 to rotate circumferentially around the weld location of the wire blank through the grinding bracket 52. Combined with the rotation of the abrasive belt 54 itself, the circumferential direction of the weld is ground. After grinding, the grinding component 5 moves away from the wire blank through the opening of the C-shaped plate 51. At this point, the processes of wire blank welding, stamping welding residue, and weld grinding are completed, realizing the centralized processing of multiple processes on the same equipment, greatly simplifying the wire blank welding connection process and improving production efficiency. Simultaneously, the process of stamping and then grinding the weld ensures the efficiency and quality of weld processing. Each of the above-mentioned automatic actions is driven by a corresponding drive component. One of the friction wheels 53 is driven by the drive component to rotate, which in turn drives the abrasive belt 54 to rotate.

[0036] To facilitate cyclic operations, this invention also includes an unloading component. This component removes the finished wire blank from the work area, facilitating the next welding operation. The unloading component includes a pulling hook 81, a pulling cylinder 82, an unloading track 83, and an unloading hook 84. The pulling cylinder 82 is fixed to the upper end of the vertical track 7. The pulling hook 81 is fixed to the telescopic rod of the pulling cylinder 82, with one end facing the area between the welding mechanism 3 and the descaling mechanism. The unloading track 83 is horizontally mounted on the upper end of the welding mechanism 3. The unloading hook 84 is slidably connected to the unloading track 83, and its range of motion intersects with that of the pulling hook 81. The unloading component hooks the finished workpiece and, under the action of the pulling cylinder 82, pulls the wire blank away from the work area, facilitating the next process and achieving automated unloading. In actual operation, when unloading is required, the pulling cylinder 82 first drives the pulling hook 81 to extend towards the workpiece, then hooks the workpiece with the pulling hook 81. The pulling cylinder 82 then drives the pulling hook 81 to move upwards. When the pulling hook 81 moves to the same height as the unloading hook 84, the unloading hook 84 moves horizontally to the position of the pulling hook 81. Then, the pulling hook 81 moves slightly downwards, at which point the wire blank will fall onto the unloading hook 84 under gravity. The unloading hook 84 then slides in the opposite direction, hooking the workpiece and passing it over the top of the welding machine, thus removing the workpiece from the working area and facilitating the next wire blank feeding and welding operation. During the process of pulling the wire blank, the pulling cylinder 82 needs to release the wire blank from the various fixing mechanisms on the welding machine.

[0037] Understandably, in one embodiment, the material-pulling hook 81 includes a connecting portion 81.1 fixed to the material-pulling cylinder 82, a movable portion 81.2 hinged to the connecting portion 81.1, and a torsion spring connecting the connecting portion 81.1 and the movable portion 81.2. The movable portion 81.2 has a retracted state and an extended state, and can switch between the retracted and extended states. The torsion spring keeps the movable portion 81.2 in the retracted state. During the process of the material-pulling cylinder 82 driving the material-pulling hook 81 downward, the movable portion... The lower side of part 81.2 will contact and abut against the wire blank. Under the push of the wire blank, the free end of the movable part 81.2 will rotate upward at a certain angle, thereby switching the movable part 81.2 from the unfolded state to the retracted state. After the movable part 81.2 passes around the wire blank, under the action of the torsion spring, the movable part 81.2 will switch back from the retracted state to the unfolded state. At this time, when the pulling cylinder 82 drives the pulling hook head 81 to move upward, the movable part 81.2 will re-contact the wire blank and hook the workpiece to move upward.

[0038] Understandably, in another embodiment, the upper end of the cylinder body of the pulling cylinder 82 is hinged to the vertical track, and the lower end of the cylinder body of the pulling cylinder 82 is connected to the vertical track via an elastic element. These two connections secure the pulling cylinder 82 to the vertical track. The pulling cylinder 82 has a first state and a second state, and can switch between the first and second states. The elastic element keeps the pulling cylinder 82 in the first state. When the pulling cylinder 82 is in motion... During the downward movement of the pulling hook 81, its lower side contacts and abuts against the wire blank. Driven by the wire blank, the pulling cylinder 82 overcomes the elastic force of the elastic element and rotates around the hinge axis, switching to the second state. After the pulling hook 81 passes the wire blank, under the action of the elastic element, it switches back to the first state. At this time, when the pulling cylinder 82 drives the pulling hook 81 upward, it re-contacts the wire blank and hooks the workpiece upward. In this design, the pulling hook 81 does not need to be a movable, avoidance structure; it can be a fixed structure, making it more robust, durable, and reliable. Furthermore, the hinge position of the pulling cylinder 82 with the vertical track is far from the pulling hook 81. The various structures at the hinge position, the elastic element position, and the pulling hook 81 position can form a lever structure when in contact with the wire blank. A small pushing force at the pulling hook 81 position is sufficient to rotate the pulling cylinder 82, avoiding excessive resistance that could cause deformation of the wire blank. After the telescopic rod of the pulling cylinder 82 retracts, the amplification effect of the lever structure decreases, ensuring that the pulling cylinder 82 can be stably fixed on the vertical track while other components are being processed, preventing displacement and vibration.

[0039] The welding mechanism 3 of the present invention includes a welding machine, a first clamping unit and a second clamping unit. A first straightening component 31 and a second straightening component 32 are provided on both sides of the horizontal track 1. The straightening centers of the first straightening component 31 and the second straightening component 32 are located on the same straight line. The centers of the first clamping unit and the second clamping unit are collinear and at the same height as the straightening centers of the first straightening component 31 and the second straightening component 32. The welding machine is located between the first clamping unit and the second clamping unit. The first clamping unit and the second clamping unit each include a lower positioning mold 33 and an upper positioning mold 34. One side of the upper positioning mold 34 is rotatably connected to the lower positioning mold 33. The lower positioning mold 33 and the upper positioning mold 34 cooperate with each other to form a clamping cavity. The first straightening component 31 and the second straightening component 32 can respectively straighten the two wire blanks that need to be butt-welded. After the welding mechanism 3 moves to the wire blank position, the straightened wire blanks will be fixed by the first clamping unit and the second clamping unit respectively. After the wire blanks are fixed, the ends of the two wire blanks are butt-welded. The first clamping unit and the second clamping unit both include a lower positioning mold 33 and an upper positioning mold 34, and a structure design in which one side of the upper positioning mold 34 is rotatably connected to the lower positioning mold 33. In use, the ends of the wire blanks can be clamped by rotation. At the same time, after welding, since the two wire blanks form a whole, the rotatable connection structure can be easily welded into a whole wire blank and released from the clamping unit to avoid interference and facilitate the unloading of the welding mechanism 3. The first straightening component 31 and the second straightening component 32 can both be existing components with straightening functions.

[0040] To ensure better welding results, a shearing component 35 is provided on the side of the first straightening component 31 and the second straightening component 32 near the welding machine. The shearing component 35 includes a hydraulic actuator and shears, and the shears have a shearing area whose centerline is collinear with the straightening centerline. The shearing component 35 is provided to remove the ends of the wire blank. Since the ends of the wire blank generally have an oxide layer, burrs, and parts that cannot be straightened, these parts need to be removed before welding to ensure better welding quality.

[0041] To ensure a stable stamping effect, the stamping component 4 in this application includes a first clamping assembly 45. The first clamping assembly 45 includes a left clamping unit and a right clamping unit. The left clamping unit includes a lower left fixed plate 451 and an upper left movable plate 452. The right clamping unit includes a lower right fixed plate 453 and an upper right movable plate 454. The upper left punch 41 is mounted on the upper left movable plate 452, the lower left punch 42 is mounted on the lower left fixed plate 451, and the upper right punch 454... 3. The upper right movable plate 454 is installed, and the lower right punch 44 is installed on the lower right fixed plate 453. The center line connecting the upper left punch 41 and the lower left punch 42 forms a cross shape with the center line connecting the upper right punch 43 and the lower right punch 44. V-shaped guide grooves 464 are provided on the lower left fixed plate 451, the upper left movable plate 452, the lower right fixed plate 453, and the upper right movable plate 454. The bottom of the V-shaped guide groove 464 forms an arc-shaped part that conforms to the surface of the wire blank. The first clamping assembly 45 can ensure a stable fixing effect, making the stamping operation more stable. By setting the four punches in a cross shape, when stamping the scar, the four punches are arranged in pairs and stamp synchronously from both sides of the scar. This can ensure the stability of the force on the wire blank during the stamping process, avoid damage to the wire blank, and remove scars through the stamping action, which can greatly improve the scar removal efficiency. The design of the V-shaped guide groove 464 facilitates the positioning of the wire blank. The upper left movable plate 452 and the upper right movable plate 45 are each connected to a driving component for driving the upper left movable plate 452 and the upper right movable plate 45 to move radially. Synchronous stamping forms an annular stamping area, with the stamping direction of the four punches along the axis of the wire blank. The left clamping unit and the right clamping unit are each connected to a driving component for driving the left clamping unit and the right clamping unit to move axially, and during stamping, the axial movement directions of the left clamping unit and the right clamping unit are opposite.

[0042] To better understand the operation of the four punches, please refer to the appendix. Figure 15 ,in Figure 15 Figure I is a schematic diagram of the common cross-section of the punches on both sides. Figures II and III are schematic diagrams of the cross-sectional positions of the punches on one side. It can be seen that A and C are located on the same side, and B and D are located on the other side. The line connecting A and C is perpendicular to the line connecting B and D. During stamping, A and C move to the right, and B and D move to the left, applying opposite forces to the excess solder at the weld position.

[0043] Furthermore, the stamping component 4 also includes a second clamping assembly, which comprises second clamping units located on both sides of the first clamping assembly 45. The clamping center lines of the second clamping units are collinear with those of the left and right clamping units. The second clamping unit includes a lower fixed die 461 and an upper movable die 462. Both the lower fixed die 461 and the upper movable die 462 are provided with arc-shaped grooves 463. The lower fixed die 461 has lower guide plates 466 at both ends, and the upper movable die 462 has upper guide plates 465 at both ends. Both the upper guide plates 465 and the lower guide plates 466 are provided with V-shaped guide grooves 464, and the bottom of the V-shaped guide grooves 464 communicates with the arc-shaped grooves 463. The second clamping assembly and the first clamping assembly 45 cooperate with each other to achieve four-point positioning and clamping of the wire blank, ensuring a more stable clamping effect. The arc-shaped grooves 463 facilitate the positioning of the wire blank.

[0044] To achieve better weld cleaning results, the upper left punch 41, lower left punch 42, upper right punch 43, and lower right punch 44 in this application all have a 90° fan-shaped cross-section. The inner surfaces of the upper left punch 41, lower left punch 42, upper right punch 43, and lower right punch 44 are all arc-shaped, conforming to the surface of the wire blank. The four punches together form a ring-shaped stamping area, which maximizes the removal of scars in one go. The arc-shaped inner surfaces allow the punches to better conform to the surface of the wire blank, improving the quality of scar removal.

[0045] One embodiment of the grinding component 5 in this application includes a grinding clamping and fixing component and a grinding drive component. The grinding drive component includes a grinding drive motor, drive wheels 56, and a timing belt. There are four drive wheels 56 distributed on the outer side of the C-shaped piece 51. The wheel surfaces of the four drive wheels 56 abut against the outer wall of the C-shaped piece 51 and form a limiting effect on the C-shaped piece 51. The output end of the grinding drive motor is connected to one of the drive wheels 56. The multiple drive wheels 56 are connected by a timing belt. The outer wall of the C-shaped piece 51 is covered with a rubber layer. The grinding clamping and fixing component is used to clamp the wire blank to be ground. The clamping and fixing component includes two grinding clamping units distributed on both sides of the grinding component 5. The rotation of the C-shaped plate 51 is achieved through friction with the drive wheel 56, realizing stepless rotation of the C-shaped plate 51. This allows for adaptive grinding according to different weld conditions of the wire blank. For example, the C-shaped plate 51 can rotate different numbers of times to achieve different degrees of grinding. It also facilitates the reset of the C-shaped plate 51, improving continuous operation capability and efficiency.

[0046] The grinding and clamping unit includes a lower fixed mold 57 and an upper movable mold 58. Both the lower fixed mold 57 and the upper movable mold 58 have arc-shaped grooves. The lower fixed mold 57 has lower guide plates at both ends, and the upper movable mold 58 has upper guide plates at both ends. Both the upper and lower guide plates have V-shaped guide grooves 510, the bottom of which communicate with the arc-shaped grooves. The interlocking structure of the lower fixed mold 57 and the upper movable mold 58 facilitates the entry of the wire blank into the fixed position, while the arc-shaped groove design facilitates the positioning of the wire blank and ensures a better fixing effect.

[0047] To facilitate the entry of the wire rod and ensure the stability of the overall structure, the central angle corresponding to the opening of the C-shaped piece 51 in this application is 40-60°. The opening of the C-shaped piece 51 cannot be too large, as an excessively large opening will lead to instability in the movement of the C-shaped piece 51, while an excessively small opening will make it inconvenient for the wire rod to enter.

[0048] The integrated welding machine structure in this application enables centralized processing of multiple processes such as straightening, clamping and fixing, welding, weld punching and descaling, weld grinding and unloading during wire rod welding, which greatly improves work efficiency. Moreover, the workpiece does not need to be moved during operation. The orderly execution of each process is achieved by moving the working parts, which can effectively ensure product quality.

[0049] Example 3: See appendix Figures 1 to 7 A wire rod butt welding method, based on the wire rod butt welding apparatus described in Embodiments 1 and 2, further includes the following steps: S1: Multiple evenly distributed wire rod coils 93 (1#-n#) are pre-placed on the rotating material tray 91; the number of wire rod coils 93 in this invention can be pre-placed according to actual needs. The rotating material tray 91 is provided with multiple mounting portions 97 for placing the wire rod coils 93. Each mounting portion 97 has two parallel mounting rods 96, which pass through the middle of the wire rod coils 93 to support them. See Appendix. Figure 1 In this embodiment, six wire rod coils 93 are used as an example for illustration. The six wire rod coils 93 are distributed circumferentially and are welded in sequence. S2: See Appendix Figure 2 The welding material machine 92 rotates to the receiving station A, and feeds the No. 1 wire rod coil into the receiving rod 95 of the welding material machine 92. After the welding material machine 92 rotates to the receiving station A, the receiving rod 95 and the mounting rod 96 are on the same straight line. The receiving rod 95 includes two spaced and parallel rods. The spacing of the mounting rod 96 is equal to the spacing of the rods. In this way, the two rods of the receiving rod 95 are aligned with the two mounting rods 96 respectively, which makes it convenient for the wire rod coil 93 to enter the welding material machine 92 from the rotating material tray 91.

[0050] S3: See appendix Figure 4 The welding machine 92 rotates 90° counterclockwise with the No. 1 wire rod coil to the welding station B, and welds the tail of the No. 1 wire rod coil to the head of the No. 2 wire rod coil on the rotating tray 91 using the wire rod welding machine. The welding operation can be performed manually on the welding workbench of the welding station B, or it can be completed automatically on the wire rod welding machine. Before the welding operation, the ends of the two wire rod coils 93 to be welded need to be removed to avoid the oxide layer and burrs at the ends affecting the welding quality.

[0051] S4: See Appendix Figure 5 After welding is completed in S3, the welding material machine 92 rotates again (90° clockwise) to the receiving station A. Simultaneously, the rotating material tray 91 rotates 360°. It should be noted that since one end of the No. 1 and No. 2 wire rod coils have already been welded together, to prevent the wire rod from breaking during the position changes of the welding material machine 92 and the rotating material tray 91, their synchronous movement is necessary. In this embodiment, the welding material machine 92 rotates 90° clockwise to reach the receiving station. At station A, the rotating material tray 91 rotates counterclockwise by 60° to bring the No. 2 wire rod coil to the receiving station A. After both arrive at the receiving station A, proceed to step S5. Rotate the receiving rod 95 to tighten the wire rod between the No. 1 and No. 2 wire rod coils. This tightening involves winding the loose wire rods from the No. 1 and No. 2 wire rod coils after welding, forming a coil. This is achieved by the rotation of the receiving rod 95. In this application, the two rods can rotate synchronously around the same axis. Since the receiving rod 95 is inserted into the inner hole of the wire rod coil 93, the receiving rod 95 and the wire rod coil 93 can be fixed circumferentially through friction or other connection structures. The rotation of the two rods drives the wire rod coil 93 to rotate, realizing the automatic flipping of the wire rod coil 93. This automatically tightens the loose wire rods from the welding process between the two coils into a coil, ensuring the integrity of the two welded wire rod coils 93. S5: When the loose wire rod winding between the No. 1 wire rod coil and the No. 2 wire rod coil is tightened, the pushing mechanism 94 feeds the No. 2 wire rod coil onto the receiving rod 95 of the welding machine 92. S6: Repeat steps S3-S5 above to complete the butt welding of wire rod coils 93 from #3 to #6 in sequence; finally, complete the butt welding of all wire rod coils 93, and all wire rod coils 93 form a whole; S7: See Appendix Figure 7 The welding machine 92 rotates clockwise to the unloading station C, and the 1#-6# wire rod coils 93 that have completed the welding connection are unloaded as a whole.

[0052] It can be seen that the butt welding method in this invention realizes semi-automatic butt welding operation. By rotating the material tray 91 and the butt welding material machine 92, automatic feeding, automatic turning and automatic unloading can be realized, reducing manual labor, reducing safety risks and improving production efficiency.

[0053] In this invention, the quantity n of the wire rod coil 93 can be 4, 5, or 6. The quantity of the wire rod coil 93 can be set differently according to production needs, making production more flexible.

[0054] Example 4: The difference between this embodiment and Embodiment 3 is that in step S4, while rotating the #2 wire rod coil to the receiving station, the receiving rod is rotated to simultaneously tighten the wire rods between the #1 and #2 wire rod coils. In the above technical solution, tightening involves winding the loose wire rods between the #1 and #2 wire rod coils after butt welding, ensuring they are wrapped around the #1 wire rod coil and rolled into a coil. This maintains the integrity of the two butt-welded wire rod coils and prevents loose wire from affecting transportation or being damaged by collisions with other structures during subsequent transportation and processing. Simultaneous tightening while rotating the #2 wire rod coil to the receiving station also prevents loose wire from being bent or damaged, or clamped and bent, during the rotation of the rotating tray and the butt-welding machine, thus improving product quality. Other aspects of this embodiment are the same as in Embodiment 2.

[0055] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A wire rod butt welding device, characterized in that, The device includes an adjacent rotating material tray and a butt welding machine. The butt welding machine is equipped with a receiving rod, which can be switched between a butt welding station, a receiving station, and a material unloading station by rotation. The rotating material tray is equipped with multiple circumferentially distributed mounting parts, which can rotate around the central axis of the rotating material tray. The central part of the rotating material tray is equipped with a pushing mechanism for pushing the wire rod from the mounting part into the receiving rod. It also includes a wire rod butt welding machine, which is set at the butt welding station; the butt welding station and the unloading station are distributed on both sides of the receiving station; The receiving rod includes two spaced and parallel rods. The two rods are independent of each other and can rotate synchronously around the same axis. When the receiving rod is rotated, the wire rods on the receiving rod and the wire rods on the rotating tray are tightened together.

2. The wire rod butt welding device according to claim 1, characterized in that, The mounting section is provided with two parallel mounting rods that are equidistant from the two rod bodies.

3. The wire rod butt welding device according to claim 1, characterized in that, The pushing mechanism includes a pushing rod and a pushing drive component. When the mounting part rotates, the pushing mechanism remains stationary so that one end of the pushing rod always faces the receiving station. The pushing drive component drives the pushing rod to perform intermittent extension and retraction movements.

4. The wire rod butt welding device according to claim 1, characterized in that, The wire rod welding machine includes a horizontal track and a sliding platform slidably connected to the horizontal track. A welding mechanism and a descaling mechanism are fixedly arranged facing each other on the sliding platform. The descaling mechanism includes a stamping component, a grinding component, a sliding frame, and a vertical track. The vertical track is fixed to the sliding platform. The stamping component and the grinding component are fixed to the sliding frame and slidably connected to the vertical track through the sliding frame. The grinding component is located below the stamping component.

5. The wire rod butt welding device according to claim 4, characterized in that, The wire rod welding machine also includes an unloading component, which includes a pulling hook, a pulling cylinder, an unloading track, and an unloading hook. The pulling cylinder is fixed to the upper end of the vertical track, and the pulling hook is fixed to the telescopic rod of the pulling cylinder. One end of the hook faces the area between the welding mechanism and the descaling mechanism. The unloading track is installed horizontally at the upper end of the welding mechanism, and the unloading hook is slidably connected to the unloading track. The range of motion of the unloading hook intersects with the range of motion of the pulling hook.

6. The wire rod butt welding device according to claim 4, characterized in that, The stamping component includes an upper left punch, a lower left punch, an upper right punch, and a lower right punch. The upper left punch, lower left punch, upper right punch, and lower right punch stamp synchronously and form a circular stamping area.

7. The wire rod butt welding device according to claim 4, characterized in that, The grinding component includes a C-shaped plate, a grinding bracket, a friction wheel, and a sanding belt. The grinding bracket is fixedly connected to the C-shaped plate, and the friction wheel is provided on the grinding bracket. The sanding belt is installed on the friction wheel. The C-shaped plate can drive the grinding bracket to rotate around the axis of the C-shaped plate. The horizontal movement of the sliding platform and the vertical movement of the sliding frame can move the welding mechanism, the stamping component, and the grinding component to the workpiece position in sequence for operation.

8. The wire rod butt welding device according to claim 7, characterized in that, The grinding component further includes a grinding clamping and fixing component and a grinding drive component. The grinding drive component includes a grinding drive motor, drive wheels, and a timing belt. There are four drive wheels distributed on the outer side of the C-shaped piece. The wheel surfaces of the four drive wheels abut against the outer wall of the C-shaped piece and form a limiting position on the C-shaped piece. The output end of the grinding drive motor is connected to one of the drive wheels. The multiple drive wheels are connected by a timing belt. The outer wall of the C-shaped piece is covered with a rubber layer. The grinding clamping and fixing component is used to clamp the wire blank to be ground. The clamping and fixing component includes two grinding clamping units distributed on both sides of the grinding component.

9. The wire rod butt welding device according to claim 6, characterized in that, The stamping component includes a first clamping assembly, which includes a left clamping unit and a right clamping unit. The left clamping unit includes a lower left fixed plate and an upper left movable plate, and the right clamping unit includes a lower right fixed plate and an upper right movable plate. The upper left punch is mounted on the upper left movable plate, the lower left punch is mounted on the lower left fixed plate, the upper right punch is mounted on the upper right movable plate, and the lower right punch is mounted on the lower right fixed plate. The center line connecting the upper left punch and the lower left punch forms a cross shape with the center line connecting the upper right punch and the lower right punch. V-shaped guide grooves are provided on the lower left fixed plate, the upper left movable plate, the lower right fixed plate, and the upper right movable plate. The bottom of the V-shaped guide groove has an arc-shaped part that conforms to the surface of the wire blank.

10. A method for butt welding of wire rods, characterized in that, The wire rod butt welding apparatus according to any one of claims 1 to 9 includes the following steps: S1: Multiple circumferentially distributed wire rod coils are pre-placed on a rotating material tray; S2: Rotate the welding material machine to the receiving station and feed the No. 1 wire rod coil into the receiving rod of the welding material machine; S3: The welding machine rotates the No. 1 wire rod coil to the welding station and welds the tail of the No. 1 wire rod coil to the head of the No. 2 wire rod coil on the rotating plate. S4: The welding material machine rotates again to the receiving station, and at the same time the rotating material tray rotates to rotate the No. 2 wire rod coil to the receiving station; S5: The rotating material tray feeds the No. 2 wire rod coil onto the receiving rod of the welding material machine; S6: Repeat steps S3-S5 above to complete the butt welding operation of wire rod coils 3#-n# in sequence; S7: The welding machine rotates to the unloading station and unloads the 1#-n# wire rod coils that have completed the welding connection as a whole.

11. The wire rod butt welding method according to claim 10, characterized in that, In step S5, before the rotating material tray feeds the No. 2 wire rod coil into the receiving rod of the welding material machine, the rotating receiving rod tightens the wire rod between the No. 1 wire rod coil and the No. 2 wire rod coil.

12. The wire rod butt welding method according to claim 10, characterized in that, In step S4, while rotating the No. 2 wire rod coil to the receiving station, the receiving rod is rotated to simultaneously tighten the wire rods between the No. 1 wire rod coil and the No. 2 wire rod coil.

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