Equipment for welding and connecting adjacent steel bars

Abstract

The invention discloses equipment for welding and connecting adjacent steel bars. The equipment comprises a welding machine, a winding disc is arranged on the welding machine, the winding disc can wind a cable, one end of the cable is connected with the welding machine, the other end of the cable is connected with a conductive clamp, and the conductive clamp is clamped on deformed steel bars; the device further comprises a welding clamp and a welding flux box, the welding flux box is arranged on the lower side deformed steel bar in a sleeving mode and covers the bottom of the upper side deformed steel bar, and the welding clamp comprises an upper clamp body, a lower clamp body and an adjusting mechanism. The clamping plates are arranged, the strip-shaped grooves are formed in the inner side walls of the clamping plates, and when the clamping plates are arranged on the outer sides of the deformed steel bars in a sleeving mode, ribs of the deformed steel bars penetrate through the strip-shaped grooves; besides, a first vertical rod and a second vertical rod are fixedly arranged on the side edge of the clamping plate, a polygonal groove and a polygonal column are arranged on the first vertical rod and the second vertical rod, the strip-shaped grooves distributed up and down directly face each other under the cooperation of the polygonal groove and the polygonal column, and then ribs of the deformed steel bars on the upper side and the lower side are controlled to directly face each other.

Description

Technical Field

[0001] This invention relates to the field of electroslag welding technology for threaded steel bars, specifically to a device for welding adjacent steel bars together. Background Technology

[0002] In building construction, a large amount of steel reinforcement is required because it increases the tensile strength and durability of concrete. Since steel reinforcement is produced in fixed lengths, it is necessary to connect adjacent reinforcement bars or cut them to meet the requirements of beam and surface reinforcement meshes, in order to accommodate different construction needs.

[0003] To strengthen the vertical beams, the threaded steel bars that make up the reinforcing mesh of the vertical beams are welded together. Currently, there are many methods for welding threaded steel bars, such as using an electroslag pressure welder to melt the ends of the threaded rods and connect adjacent threaded steel bars. Electroslag pressure welding machines are of a single type. Their specific structure can be referenced in Chinese patent CN107030374A, which discloses an electroslag pressure welding machine comprising an upper rebar clamping assembly, a lower rebar clamping assembly, and an upper / lower rebar gap adjustment component. The upper rebar clamping assembly is movably mounted on the upper part of two parallel guide rails, while the lower rebar clamping assembly is fixedly mounted on the lower part of the two parallel guide rails. The upper / lower rebar gap adjustment component is located at the upper end of the two parallel guide rails to adjust the upper rebar clamping assembly. The upper rebar clamping assembly includes a sliding sleeve, a clamping frame plate, and a clamping screw assembly. Two sliding sleeves are mounted on corresponding parallel guide rails and connected by a connecting plate. The clamping frame plate is movably mounted on the two sliding sleeves. An upper / lower rebar alignment adjustment device is provided between the clamping frame plate and the connecting plate. The clamping screw assembly is mounted on the clamping frame plate, and the upper rebar is clamped in the fixed groove of the clamping frame plate by adjusting the clamping screw assembly.

[0004] When using the electroslag pressure welding machine provided in the aforementioned patent to weld adjacent threaded steel bars, a clamp needs to be fitted onto the two adjacent threaded bars, and a welding machine box needs to be fitted at the junction of the two threaded steel bars. According to the specifications for electroslag pressure welding, the longitudinal ribs of the upper and lower threaded steel bars must be aligned; otherwise, the strength of the two threaded steel bars will be affected. However, whether it is the welding machine provided in the aforementioned patent or other welding machines, when using their clamps to hold adjacent threaded steel bars, the upper threaded steel bar must be manually rotated to align the ribs. However, the accuracy of manual adjustment is poor, often resulting in misalignment of the ribs of the two threaded steel bars. Summary of the Invention

[0005] The purpose of this invention is to provide a device for welding adjacent reinforcing bars together, which aims to improve the problem that the clamps of existing electroslag pressure welding machines are inconvenient to control the alignment of two threaded steel ribs.

[0006] The present invention is implemented as follows: a device for welding adjacent reinforcing bars together includes a welding machine, on which a take-up reel is provided for winding a cable. One end of the cable is connected to the welding machine, and the other end is connected to a conductive clamp, which clamps the threaded steel bar. The device also includes a welding fixture and a flux box. The flux box is fitted onto the lower threaded steel bar and covers the bottom of the upper threaded steel bar. The welding fixture includes an upper fixture, a lower fixture, and an adjustment mechanism. The lower fixture includes a first clamping plate and a second clamping plate, both with a first strip groove on their inner surfaces. The upper fixture includes a third clamping plate and a fourth clamping plate, both with a second strip groove. The adjustment mechanism is connected to the middle of the upper and lower fixtures and controls the alignment of the first and second strip grooves.

[0007] Preferably, a second internal threaded tube and a limiting tube are fixedly provided on the side of the first clamping plate and the third clamping plate, and a limiting rod and a threaded post are provided on the side of the second clamping plate and the fourth clamping plate. The end of the limiting rod is inserted into the limiting tube, and the threaded post is threaded into the second internal threaded tube.

[0008] Preferably, a second vertical rod is fixedly provided on the side of the third clamping plate, and a polygonal groove is provided at the lower end of the second vertical rod. A first vertical rod is fixedly provided on the side of the first clamping plate, and a polygonal column is fixedly provided at the top of the first vertical rod, with the polygonal column inserted into the polygonal groove.

[0009] Preferably, the adjustment mechanism is configured as a first adjustment mechanism, which includes a first internally threaded tube, a fixed arc plate, and a clamping arc plate. The fixed arc plate is fixedly disposed at the bottom of the first internally threaded tube, and the clamping arc plate is detachably disposed on the side of the fixed arc plate by means of bolts.

[0010] Preferably, the lower end of the second vertical rod is provided with a threaded structure, and the first internal threaded tube is threaded onto the second vertical rod. A top plate and an annular convex plate are fixedly provided on the first vertical rod. The annular convex plate is located below the top plate. Arc-shaped convex plates are fixedly provided on the inner sides of the fixed arc plate and the clamping arc plate. The top of the first vertical rod and the top plate extend into the inner sides of the fixed arc plate and the clamping arc plate. The annular convex plate is located below the fixed arc plate.

[0011] Preferably, the adjustment mechanism is configured as a second adjustment mechanism, which includes a middle tube and two third internally threaded tubes. The ends of the two third internally threaded tubes that are close to each other are connected by bearings and inserted into the two ends of the middle tube. The ends of the first vertical rod and the second vertical rod that are close to each other are provided with threaded structures and are respectively threaded into the two third internally threaded tubes.

[0012] Preferably, the flux box includes a first splicing shell and a second splicing shell, the first splicing shell and the second splicing shell have the same structure, and the outer side is respectively provided with a first limiting arc plate and a second limiting arc plate. The sides of the first limiting arc plate and the second limiting arc plate are provided with arc grooves. A first set plate and a second set plate are respectively fitted on the first limiting arc plate and the second limiting arc plate. The cross-section of the first set plate and the second set plate is set with a U-shaped structure, and an arc column is fixedly provided on the inner side wall. The arc column is located in the arc groove. The ends of the first limiting arc plate and the second limiting arc plate are respectively provided with slots and insert rods, and the insert rods extend into the slots.

[0013] Preferably, a material conveying hole is provided at the lower end of the second splicing shell, a filling plate is provided at the material conveying hole, the top of the filling plate is hinged to the second splicing shell, and a buckle plate is provided at the lower end, which is fastened to the top of the second splicing shell.

[0014] Preferably, a push plate is provided in the flux box to fill the gap between the flux box and the threaded steel bar, and a notch is provided near the edge of the threaded steel bar. A bonding plate is provided on the top of the push plate. The bonding plate is designed with an L-shaped structure and a snap-fit ​​post is provided at the bottom. The top of the outer side of the first splicing shell and the second splicing shell are both provided with snap-fit ​​arc grooves, and the snap-fit ​​post is located in the snap-fit ​​arc groove.

[0015] Preferably, an adjusting screw is provided through the handle of the welding machine, and a through hole is provided at the end. A connecting plate is provided through and hinged at the through hole. A fourth internal threaded tube is hinged to one end of the connecting plate, and a shaft is provided through the other end. The adjusting screw is threaded through the fourth internal threaded tube. A brake plate is provided above the winding reel. A connecting frame is provided above the brake plate. A strip hole is provided on the connecting frame, and the shaft is provided through the strip hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention features a clamping plate with a strip groove on its inner wall. When the clamping plate is fitted over the outer side of the threaded steel bar, the ribs of the threaded steel bar pass through the strip groove. Furthermore, a first vertical rod and a second vertical rod are fixedly mounted on the side of the clamping plate, and polygonal grooves and polygonal columns are mounted on the first and second vertical rods. With the cooperation of the polygonal grooves and polygonal columns, the vertically distributed strip grooves are aligned, thereby controlling the alignment of the ribs on the upper and lower sides of the threaded steel bar, thus changing the previous method of manually rotating the upper threaded steel bar to adjust the ribs.

[0017] The present invention has a feeding hole on the splicing shell to provide a channel for the flux in the flux box, so as to completely clean the flux and avoid the waste of a lot of flux due to disassembling the flux box. A filling plate is provided at the feeding hole to block the feeding hole so as to store the flux to complete the welding process of the upper and lower threaded steel bars. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the structure of the first embodiment of the present invention; Figure 2 This is a schematic diagram of the welding machine of the present invention; Figure 3 This is a partial structural schematic diagram of the welding machine of the present invention; Figure 4 This is a schematic diagram of the flux box and welding fixture of the present invention; Figure 5 This is a schematic diagram of the first welding fixture of the present invention; Figure 6 This is a schematic diagram of the structure of the clamp of the present invention; Figure 7 This is a schematic diagram of the structure of the clamp of the present invention; Figure 8 This is a schematic diagram of the structure of the first adjusting mechanism of the present invention; Figure 9 This is a schematic diagram of the flux box of the present invention; Figure 10 This is a schematic diagram of the structure of the first splicing shell of the present invention; Figure 11 This is a schematic diagram of the structure of the second splicing shell of the present invention; Figure 12 This is a schematic diagram of the push plate of the present invention; Figure 13 This is a schematic diagram of the second welding fixture of the present invention; Figure 14 This is a schematic diagram of the structure of the second adjustment mechanism of the present invention; Figure 15 This is a structural schematic diagram of the second embodiment of the present invention; Figure 16 This is a structural schematic diagram of the third embodiment of the present invention; Figure 17 This is a structural schematic diagram of the fourth embodiment of the present invention.

[0019] In the diagram: 1. Welding machine; 11. Cable; 12. Conductive clamp; 13. Reel; 14. Brake plate; 15. Connecting frame; 16. Strip hole; 17. Connecting plate; 18. Through hole; 19. Adjusting screw; 2. Flux box; 21. First splicing shell; 211. First limiting arc plate; 212. Arc groove; 213. First set plate; 214. Arc column; 215. Slot; 216. Snap-on arc groove; 22. Push plate; 221. Notch; 222. Snap-on column; 223. Adhesive plate; 23. Second splicing shell; 231. Feeding hole; 232. Filler plate; 233. Buckle plate; 234. Second limiting arc plate; 235. Second set plate; 3. Welding clamp 31. First adjusting mechanism; 311. First internally threaded tube; 312. Fixed arc plate; 313. Arc-shaped convex plate; 314. Clamping arc plate; 32. Lower clamp; 321. First clamping plate; 322. Annular convex plate; 323. Polygonal column; 324. Second clamping plate; 325. First strip groove; 326. Threaded column; 327. Limiting rod; 328. Second internally threaded tube; 329. Limiting tube; 33. Upper clamp; 331. Third clamping plate; 332. Threaded structure; 333. Polygonal groove; 334. Second strip groove; 335. Fourth clamping plate; 34. Second adjusting mechanism; 341. Intermediate tube; 342. Third internally threaded tube. Detailed Implementation

[0020] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details: Example 1

[0022] To ensure that the ribs of the upper and lower threaded steel bars are aligned and to avoid inaccurate manual adjustments, this embodiment provides a new electroslag pressure welding device. The specific technical solution is described below.

[0023] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 15 , Figure 16 , Figure 17As shown, the electroslag pressure welding device includes a welding machine 1, a welding fixture 3, and a flux box 2. The welding machine 1 used here is existing equipment; commonly used models include BX3-500, BX3-630, BX3-750, and BX3-1000, etc., so they will not be described in detail here. The existing welding machine 1 is also equipped with a cable 11, which can be plugged into the welding machine 1. Additionally, a conductive clip 12 is provided at the end of the cable 11, which clamps onto the threaded steel bar to increase the heat at the end of the threaded steel bar, causing it to melt and facilitating the connection of adjacent threaded steel bars. The flux box 2 is fitted onto the lower threaded steel bar and covers the bottom of the upper threaded steel bar, filling the gap between the flux box 2 and the threaded steel bar with flux. The welding fixture 3 includes an upper fixture 33, a lower fixture 32, and an adjustment mechanism. The lower fixture 32 includes a first clamping plate 321 and a second clamping plate 324. A first strip groove 325 is provided on the inner side of both the first clamping plate 321 and the second clamping plate 324. A first vertical rod is fixedly provided on the side of the first clamping plate 321. A polygonal column 323 is fixedly provided on the top of the first vertical rod. The upper fixture 33 includes a third clamping plate 331 and a fourth clamping plate 335. A second strip groove 334 is provided on the third clamping plate 331 and the fourth clamping plate 335. A second vertical rod is fixedly provided on the side of the third clamping plate 331. A polygonal groove 333 is provided at the lower end of the second vertical rod. The polygonal column 323 is inserted into the polygonal groove 333. The first slot 325 and the second slot 334 are designed so that the ribs can pass through when the clamping plate holds the threaded steel. Furthermore, with the cooperation of the polygonal column 323 and the polygonal slot 333, the first slot 325 and the second slot 334 are aligned, thereby controlling the alignment of the threaded steel ribs on both the upper and lower sides, eliminating the need for manual rotation of the upper threaded steel to adjust the ribs. During the melting of the threaded steel, to control the descent of the upper threaded steel, an adjustment mechanism is connected to the middle of the upper clamp 33 and the lower clamp 32. By adjusting the state of the adjustment mechanism, the descent of the upper clamp 33 is controlled, which in turn drives the upper threaded steel to descend.

[0024] like Figure 6 , Figure 7As shown, to ensure stable clamping of the threaded steel bars, a second internally threaded tube 328 and a limiting tube 329 are fixedly installed on the side of the first clamping plate 321. A limiting rod 327 and a threaded post 326 are installed on the side of the second clamping plate 324. The end of the limiting rod 327 is inserted into the limiting tube 329, making the first clamping plate 321 and the second clamping plate 324 stably and movably connected. The threaded post 326 is threaded into the second internally threaded tube 328. By rotating the threaded post 326, the relative position of the first clamping plate 321 and the second clamping plate 324 can be adjusted, facilitating the clamping of the threaded steel bars. In addition, the structure of the third clamping plate 331 and the fourth clamping plate 335 is the same as the joint of the first clamping plate 321 and the second clamping plate 324, that is, the third clamping plate 331 and the fourth clamping plate 335 are connected in the same way as the first clamping plate 321 and the second clamping plate 324.

[0025] like Figure 6 , Figure 7 , Figure 8 As shown, in order to control the relative movement of the upper clamp 33 and the lower clamp 32, the adjustment mechanism is set as a first adjustment mechanism 31. The first adjustment mechanism 31 includes a first internally threaded tube 311, a fixed arc plate 312, and a clamping arc plate 314. The fixed arc plate 312 is fixedly installed at the bottom of the first internally threaded tube 311. The clamping arc plate 314 is detachably installed on the side of the fixed arc plate 312 by bolts. Therefore, the first adjustment mechanism 31 can be installed on the first vertical rod by disassembling the clamping arc plate 314. The lower end of the second vertical rod is provided with a threaded structure 332. The first internally threaded tube 311 is threaded onto the second vertical rod. By rotating the first internally threaded tube 311, the second vertical rod can be controlled to descend, thereby adjusting the position of the upper threaded steel. A top plate and an annular convex plate 322 are fixedly installed on the first vertical rod. The annular convex plate 322 is located below the top plate. Arc-shaped convex plates 313 are fixedly installed on the inner sides of both the fixed arc plate 312 and the clamping arc plate 314. The top of the first vertical rod and the top plate extend into the inner sides of the fixed arc plate 312 and the clamping arc plate 314, thereby restricting the first adjusting mechanism 31 to be stably placed relative to the first vertical rod, facilitating the control of the descent of the upper threaded steel. The annular convex plate 322 is located below the fixed arc plate 312, thereby supporting the first adjusting mechanism 31 to be relatively stably installed on the first vertical rod, providing support for the placement of the upper threaded steel relative to the lower threaded steel.

[0026] like Figure 9 , Figure 10 , Figure 11As shown, to facilitate cleaning the flux in the flux box 2, the flux box 2 includes a first splicing shell 21 and a second splicing shell 23. The first splicing shell 21 and the second splicing shell 23 have the same structure, and a first limiting arc plate 211 and a second limiting arc plate 234 are respectively provided on their outer sides. Arc grooves 212 are provided on the sides of the first limiting arc plate 211 and the second limiting arc plate 234. A first fitting plate 213 is respectively fitted on the first limiting arc plate 211 and the second limiting arc plate 234. The first set of mounting plates 213 and 235 have a U-shaped cross-section, and an arc-shaped column 214 is fixedly installed on the inner wall. The arc-shaped column 214 is located in the arc-shaped groove 212. When the first splicing shell 21 and the second splicing shell 23 are spliced ​​on the outside of the threaded steel, the operator rotates the mounting plate so that the mounting plate spans the junction of the first splicing shell 21 and the second splicing shell 23, thereby making the first splicing shell 21 and the second splicing shell 23 stably connected. In order to keep the first splicing shell 21 and the second splicing shell 23 relatively stationary, slots 215 and insert rods are respectively provided at the ends of the first limiting arc plate 211 and the second limiting arc plate 234, with the insert rods extending into the slots 215. To facilitate flux output, a feeding hole 231 is provided at the lower end of the second splicing shell 23. A filling plate 232 is provided at the feeding hole 231. The top of the filling plate 232 is hinged to the second splicing shell 23, and a buckle plate 233 is provided at the lower end. The buckle plate 233 is fastened to the top of the second splicing shell 23. When cleaning the flux in the flux box 2, the operator pulls the buckle plate 233 to rotate the filling plate 232, thereby clearing the feeding hole 231 and providing a channel for flux output.

[0027] like Figure 9 , Figure 12 As shown, in order to control the flux to move to the feed hole 231, a push plate 22 is provided in the flux box 2. The push plate 22 fills the gap between the flux box 2 and the threaded steel, and a notch 221 is provided near the edge of the threaded steel. A bonding plate 223 is provided on the top of the push plate 22. The bonding plate 223 is designed with an L-shaped structure and a snap-fit ​​post 222 is provided at the bottom. The top of the outer side of the first splicing shell 21 and the second splicing shell 23 are both provided with snap-fit ​​arc grooves 216. The snap-fit ​​post 222 is located in the snap-fit ​​arc groove 216, so that the push plate 22 is stably and movable relative to the splicing shell. Therefore, the push plate 22 can be pushed by the operator to move, forcing the flux away from the feed hole 231 to move to the feed hole 231 and be output. Example 2

[0028] like Figure 13 , Figure 14As shown, based on Embodiment 1, the adjustment mechanism is set as a second adjustment mechanism 34, that is, the second adjustment mechanism 34 replaces the first adjustment mechanism 31. The second adjustment mechanism 34 includes a middle tube 341 and two third internal threaded tubes 342. The two third internal threaded tubes 342 are connected by bearings at their close ends and inserted into the two ends of the middle tube 341. The first vertical rod and the second vertical rod are each provided with a threaded structure 332 at their close ends, and are respectively threaded into the two third internal threaded tubes 342. Through the cooperation of the third internal threaded tubes 342 and the threaded structure 332, the first vertical rod and the second vertical rod are stably placed relative to the middle tube 341. In addition, by rotating the two third internal threaded tubes 342, the relative position of the first vertical rod and the second vertical rod can be adjusted, providing support for controlling the descent of the upper threaded steel relative to the lower threaded steel. Example 3

[0029] like Figure 2 , Figure 3 As shown, based on embodiment 1 or 2, a winding reel 13 is provided on the side of the welding machine 1 to neatly store unused cables 11, so that cables 11 can be wound onto the winding reel 13. To ensure stable winding of cables 11, a brake plate 14 is provided above the winding reel 13, and a connecting frame 15 is provided above the brake plate 14. The connecting frame 15 is provided with a strip hole 16. An adjusting screw 19 is provided through the handle of the welding machine 1, and a through hole 18 is provided at its end. A connecting plate 17 is provided through and hinged to the through hole 18. A fourth internal threaded tube is hinged to one end of the connecting plate 17, and a shaft is provided through the other end. The adjusting screw 19 is threaded through the fourth internal threaded tube, and the shaft is provided through the strip hole 16. By rotating the adjusting screw 19, the tilt angle of the connecting plate 17 can be changed, so that the brake plate 14 is placed against the edge of the winding reel 13, increasing the resistance to the rotation of the winding reel 13.

[0030] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for welding adjacent reinforcing bars together, characterized in that, The system includes a welding machine (1), on which a take-up reel (13) is provided. The take-up reel (13) can take up a cable (11). One end of the cable (11) is connected to the welding machine (1), and the other end is connected to a conductive clamp (12). The conductive clamp (12) clamps the threaded steel bar. The system also includes a welding fixture (3) and a flux box (2). The flux box (2) is fitted onto the lower threaded steel bar and covers the bottom of the upper threaded steel bar. The welding fixture (3) includes an upper clamp (33), a lower clamp (32), and an adjustment mechanism. The lower clamp (32) includes a first clamp (33), a second clamp (32), and an adjustment mechanism. A clamping plate (321) and a second clamping plate (324) are provided with a first strip groove (325) on the inner side of the first clamping plate (321) and the second clamping plate (324). The upper clamp (33) includes a third clamping plate (331) and a fourth clamping plate (335). The third clamping plate (331) and the fourth clamping plate (335) are provided with a second strip groove (334). The adjustment mechanism is connected to the middle of the upper clamp (33) and the lower clamp (32) and controls the first strip groove (325) and the second strip groove (334) to be aligned.

2. The device for welding adjacent reinforcing bars together according to claim 1, characterized in that, The first clamping plate (321) and the third clamping plate (331) are fixedly provided with a second internal threaded tube (328) and a limiting tube (329) on their sides. The second clamping plate (324) and the fourth clamping plate (335) are provided with a limiting rod (327) and a threaded post (326) on their sides. The end of the limiting rod (327) is inserted into the limiting tube (329), and the threaded post (326) is threaded into the second internal threaded tube (328).

3. The device for welding adjacent reinforcing bars together according to claim 2, characterized in that, The third clamping plate (331) is fixedly provided with a second vertical rod on its side, and a polygonal groove (333) is provided at the lower end of the second vertical rod. The first clamping plate (321) is fixedly provided with a first vertical rod on its side, and a polygonal column (323) is fixedly provided at the top of the first vertical rod. The polygonal column (323) is inserted into the polygonal groove (333).

4. The device for welding adjacent reinforcing bars together according to claim 3, characterized in that, The adjustment mechanism is configured as a first adjustment mechanism (31), which includes a first internal threaded tube (311), a fixed arc plate (312), and a clamping arc plate (314). The fixed arc plate (312) is fixedly disposed at the bottom of the first internal threaded tube (311), and the clamping arc plate (314) is detachably disposed on the side of the fixed arc plate (312) by bolt connection.

5. The device for welding adjacent reinforcing bars together according to claim 4, characterized in that, The lower end of the second vertical rod is provided with a threaded structure (332). The first internal threaded tube (311) is threaded onto the second vertical rod. A top plate and an annular convex plate (322) are fixedly provided on the first vertical rod. The annular convex plate (322) is located below the top plate. An arc-shaped convex plate (313) is fixedly provided on the inner side of the fixed arc plate (312) and the clamping arc plate (314). The top of the first vertical rod and the top plate extend into the inner side of the fixed arc plate (312) and the clamping arc plate (314). The annular convex plate (322) is located below the fixed arc plate (312).

6. The device for welding adjacent reinforcing bars together according to claim 3, characterized in that, The adjustment mechanism is configured as a second adjustment mechanism (34), which includes an intermediate tube (341) and two third internal threaded tubes (342). The two third internal threaded tubes (342) are connected by bearings at their close ends and inserted into the two ends of the intermediate tube (341). The first vertical rod and the second vertical rod are both provided with threaded structures (332) at their close ends and are respectively threaded into the two third internal threaded tubes (342).

7. The device for welding adjacent reinforcing bars together according to claim 1, characterized in that, The flux box (2) includes a first splicing shell (21) and a second splicing shell (23). The first splicing shell (21) and the second splicing shell (23) have the same structure, and a first limiting arc plate (211) and a second limiting arc plate (234) are respectively provided on their outer sides. Arc grooves (212) are provided on the sides of the first limiting arc plate (211) and the second limiting arc plate (234). The first set of mounting plates (213) and the second set of mounting plates (235) are respectively mounted on the upper part. The cross-section of the first set of mounting plates (213) and the second set of mounting plates (235) is set as a U-shaped structure, and an arc-shaped column (214) is fixedly installed on the inner side wall. The arc-shaped column (214) is located in the arc-shaped groove (212). The ends of the first limiting arc plate (211) and the second limiting arc plate (234) are respectively provided with slots (215) and insert rods, and the insert rods extend into the slots (215).

8. The device for welding adjacent reinforcing bars together according to claim 7, characterized in that, A material feeding hole (231) is provided at the lower end of the second splicing shell (23), and a filling plate (232) is provided at the material feeding hole (231). The top of the filling plate (232) is hinged to the second splicing shell (23), and a buckle plate (233) is provided at the lower end. The buckle plate (233) is fastened to the top of the second splicing shell (23).

9. The device for welding adjacent reinforcing bars together according to claim 7, characterized in that, A push plate (22) is provided in the flux box (2). The push plate (22) fills the gap between the flux box (2) and the threaded steel bar, and a notch (221) is provided near the edge of the threaded steel bar. A bonding plate (223) is provided on the top of the push plate (22). The bonding plate (223) is set as an L-shaped structure, and a snap-fit ​​post (222) is provided at the bottom. A snap-fit ​​arc groove (216) is provided on the top of the outer side of the first splicing shell (21) and the second splicing shell (23). The snap-fit ​​post (222) is located in the snap-fit ​​arc groove.

10. The device for welding adjacent reinforcing bars together according to claim 1, characterized in that, An adjusting screw (19) is provided through the handle of the welding machine (1), and a through hole (18) is provided at the end. A connecting plate (17) is provided through and hinged to the through hole (18). A fourth internal threaded tube is hinged to one end of the connecting plate (17), and a shaft is provided through the other end. The adjusting screw (19) is threaded through the fourth internal threaded tube. A brake plate (14) is provided above the winding reel (13). A connecting frame (15) is provided above the brake plate (14). A strip hole (16) is provided on the connecting frame (15), and the shaft is provided through the strip hole (16).

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