Welding device for steel reinforcement framework

Abstract

The invention relates to the technical field of welding equipment, in particular to a steel reinforcement framework welding device which comprises a base and a welding head arranged on the base and further comprises two arc-shaped supporting plates symmetrically arranged on the base. Two reinforcing steel bars correspondingly penetrate through the two split type fixing pipes and are fixed through the clamping assembly, then the driving assembly is started to drive the two reinforcing steel bars to move so that the ends of the reinforcing steel bars can be in butt joint, the welding head is used for welding after butt joint, meanwhile, the rotating assembly is used for driving the two reinforcing steel bars to synchronously rotate and be welded, and the welding effect is improved; after the ends of the two steel bars are in butt joint, the driving assembly continues to be started, at the moment, movement of the steel bars is blocked, the C-shaped plate moves relative to the steel bars, the linkage assembly is used for driving the two steel bars to move and be staggered, then the driving assembly continues to be started to enable the sections of one ends of the two steel bars to be combined together for welding, and therefore rapid switching of the two welding modes can be achieved; and convenience and practicability are realized.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a welding device for a steel bar skeleton. Background Art

[0002] Steel bars refer to steel used for reinforced concrete and prestressed reinforced concrete, and their cross-sections are circular, sometimes square with rounded corners, and the steel skeleton is generally a three-dimensional structure formed by connecting the steel bars together. When connecting the steel bars, plasma arc welding equipment is generally used for welding them because of its advantages such as high efficiency, high precision and low oxidation. In actual operation, if two steel bars are welded into one, there are two welding methods. One is to directly butt-weld the ends of the two steel bars, and the other is to weld a section of one end of the two steel bars together. These two methods each have their applicable scenarios and advantages and disadvantages. In actual construction, the appropriate welding method will be selected based on comprehensive consideration of factors such as the diameter of the steel bar, the required joint strength, construction conditions and cost. However, when the welding equipment in the prior art butt-welds two steel bars, the two welding methods may require the design of two clamping structures. Therefore, it is necessary to disassemble and install them in specific use, which is more troublesome. For this reason, we propose a welding device for a steel skeleton. Summary of the invention

[0003] A technical problem to be solved by this application is: how to design a steel bar welding device that can automatically adapt to different butt jointing methods.

[0004] In order to solve the above technical problems, the embodiment of the present application provides a welding device for a steel frame, comprising a base and a welding head arranged on the base, and also comprising:

[0005] Two arc-shaped supporting plates are symmetrically arranged on the base;

[0006] C-shaped plate, rotatably arranged in the arc-shaped support plate;

[0007] A split fixing pipe is arranged on the C-shaped plate, and a clamping assembly is arranged inside the split fixing pipe, and two steel bars are passed through the two split fixing pipes respectively and clamped and fixed by the clamping assembly;

[0008] A driving assembly is arranged on the base and connected to the arc-shaped support plate, and is used to drive the two steel bars to move toward each other and dock;

[0009] A rotating assembly is arranged on the arc-shaped support plate and connected to the C-shaped plate, and is used to drive the two steel bars to rotate relative to the arc-shaped support plate for welding;

[0010] The linkage component is arranged on the C-shaped plate and connected to the split fixed pipe. After the two arc-shaped supporting plates are moved to drive the two steel bars to connect, the arc-shaped supporting plates are continued to be moved while the linkage component is used to drive the split fixed pipe to move relative to the C-shaped plate to drive the two steel bars to stagger.

[0011] In some embodiments, the split fixed tube includes an arc plate 1 and an arc plate 2, and the arc plate 1 is rotatably connected to the arc plate 2 via a rotating shaft, and the arc plate 1 is connected to the C-shaped plate;

[0012] An E-shaped plate is slidably connected to the arc-shaped plate 1, a bayonet is fixedly connected to the E-shaped plate, a bayonet is provided on the arc-shaped plate 2, and one end of the bayonet is located in the bayonet to connect the arc-shaped plate 1 with the arc-shaped plate 2;

[0013] A T-shaped sliding protrusion is fixedly connected to one end of the E-shaped plate, a T-shaped sliding groove is opened on the arc-shaped plate, and the T-shaped sliding protrusion is located in the T-shaped sliding groove to guide and limit the sliding of the E-shaped plate.

[0014] In some embodiments, the clamping assembly includes a rectangular plate slidably disposed on the arc plate 1, and a rectangular plate is also slidably disposed on the arc plate 2. The arc plate 1 and the arc plate 2 are both provided with a pushing member for pushing the rectangular plate to move and clamp the steel bar;

[0015] The pushing member includes an electric push rod 1 fixedly connected to an arc-shaped plate 1, one end of the electric push rod 1 is fixedly connected to an L-shaped plate, an inclined slide groove is provided on the rectangular plate, and a sliding column with one end located in the inclined slide groove is fixedly connected to the L-shaped plate. The electric push rod is started to drive the rectangular plate to move, and the pushing member on the arc-shaped plate 2 adopts the same design as that on the arc-shaped plate 1.

[0016] In some embodiments, the driving assembly includes an axis rotatably connected to the base, two screws are symmetrically fixedly connected to the axis, and a slide is fixedly connected to the bottom end of the arc-shaped support plate, a slide groove is opened on the base, one end of the slide passes through the slide groove, and the two screws pass through the two slides correspondingly, and a driving motor is fixedly connected to the base, and the output shaft of the driving motor is fixed to the axis, and when the driving motor is started, the two arc-shaped support plates are driven to move.

[0017] In some embodiments, the rotating assembly includes an arc-shaped protrusion fixedly connected to the C-shaped plate, a plurality of tooth grooves are evenly and equidistantly provided on the arc-shaped protrusion, and the C-shaped plate is rotatably connected to the arc-shaped supporting plate, and two toothed discs meshing with the tooth grooves are symmetrically rotatably connected to the arc-shaped supporting plate, and the rotation of the two toothed discs drives the C-shaped plate to rotate;

[0018] A second shaft is rotatably connected to the base, one end of the second shaft passes through the toothed disc, a guide protrusion is fixedly connected to the toothed disc, a guide groove is provided on the second shaft, one end of the guide protrusion is located in the guide groove and is slidably connected to the inner wall of the guide groove to guide and limit the movement of the toothed disc, a second drive motor is fixedly connected to the base, the output shaft of the second drive motor is fixed to the second shaft, and the second drive motor is started to drive the C-shaped plate to rotate.

[0019] In some embodiments, the linkage assembly includes a shaft three fixedly connected to both ends of the arc-shaped plate one, two shafts four are symmetrically fixedly connected to the C-shaped plate, a connecting rod is rotatably connected between the two shafts four and the two shafts three, and the two connecting rods are designed to be parallel;

[0020] A transmission member is arranged between the two arc-shaped plates 1, and when the arc-shaped plate 1 on one C-shaped plate is moved relative to the other C-shaped plate, the transmission member is used to drive the arc-shaped plate 1 on the other C-shaped plate to move.

[0021] In some embodiments, the transmission member includes an injection cylinder 1 fixedly connected to the C-shaped plate, the injection cylinder 1 is filled with hydraulic oil, a piston 1 is slidably connected to the injection cylinder 1, one end of the piston 1 is fixedly connected to a push rod 1, one end of the push rod 1 is fixedly connected to a hollow rectangular frame, and one end of a shaft 3 is correspondingly located in the hollow rectangular frame and slidably connected to its inner wall;

[0022] Two syringes 2 are fixedly connected to the base, the two syringes 2 are also filled with hydraulic oil and are connected to the two syringes 1 through conduits, the two syringes 2 are slidably connected with pistons 2, one side of the pistons 2 is fixedly connected with push rods 2, one end of the two push rods 2 is fixedly connected with shafts 5, and the base is rotatably connected with shaft 6, one end of the shaft 6 passes through the base and is fixedly connected with a lever, both ends of the lever are provided with sliding grooves, and the two shafts 5 are correspondingly located in the two sliding grooves;

[0023] A locking assembly is provided on the base for locking the shaft six to lock the arc plate one.

[0024] In some embodiments, the locking assembly includes a deflection plate fixed to one end of shaft six, the deflection plate is threadedly connected with a bolt, a positioning groove is provided on the base, one end of the bolt contacts the base, and the bolt is rotated to insert into the positioning groove to lock the arc plate one.

[0025] In some embodiments, the base is fixedly connected to a support frame, the support frame is fixedly connected to a guide rod, the guide rod is slidably connected to a mounting block, the mounting block is fixedly connected to an electric push rod 2, and the protruding end of the electric push rod 2 is fixed to the welding head.

[0026] In some embodiments, a torsion spring is sleeved on the shaft six, and two ends of the torsion spring are respectively fixedly connected to the shaft six and the base. When the shaft six is ​​rotated, the torsion spring is twisted to provide a self-restoring elastic force.

[0027] The present invention has at least the following beneficial effects:

[0028] 1. When the device is in use, two steel bars are passed through two split fixed tubes and fixed by the clamping assembly, and then the driving assembly is started to drive the two steel bars to move so that their ends are butted. After butting, the welding head is used for welding, and the rotating assembly is used to drive the two steel bars to rotate synchronously for welding, thereby improving the welding effect.

[0029] 2. After the two ends of the steel bars are butt-jointed, the drive assembly is started again. At this time, the movement of the steel bars is blocked, causing the C-type plate to move relative to the steel bars and use the linkage assembly to drive the two steel bars to move out of position. Then, the drive assembly is started again to weld a section of one end of the two steel bars together, thereby realizing rapid switching between the two welding modes, which is more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0031] Figure 2 For the present invention Figure 1 Another structural diagram;

[0032] Figure 3 For the present invention Figure 2 Another structural diagram;

[0033] Figure 4 For the present invention Figure 3 Schematic diagram of the local cross-section structure;

[0034] Figure 5 For the present invention Figure 4 Schematic diagram of the local cross-section structure;

[0035] Figure 6 For the present invention Figure 5 Schematic diagram of the local cross-section structure;

[0036] Figure 7 For the present invention Figure 6 Schematic diagram of the local cross-section structure;

[0037] Figure 8 This is a structural schematic diagram of Example 2 of the present invention.

[0038] In the figure: 1-base; 11-welding head; 2-arc support plate; 3-C-type plate; 4-split fixed pipe; 5-clamping assembly; 6-driving assembly; 7-rotating assembly; 8-linkage assembly; 41-arc plate 1; 42-arc plate 2; 43-E-type plate; 44-pin; 45-slot; 46-T-type sliding protrusion; 47-T-type sliding groove; 48-rectangular plate; 49-propelling member; 51-electric push rod 1; 52-L-type plate; 53-oblique sliding groove; 54-sliding column; 55-axis 1; 56-screw; 57-slide plate; 58-slot 1; 59-driving motor 1; 61-arc convex; 62 -tooth groove; 63-toothed disc; 64-axis two; 65-guide cam; 66-guide groove; 67-drive motor two; 68-axis three; 69-axis four; 71-connecting rod; 72-transmission member; 73-injection cylinder one; 74-piston one; 75-push rod one; 76-hollow rectangular frame; 77-injection cylinder two; 78-piston two; 79-push rod two; 81-axis five; 82-axis six; 83-lever; 84-sliding groove; 85-locking assembly; 86-deflection plate; 87-bolt; 88-positioning groove; 89-support frame; 91-guide rod; 92-mounting block; 93-electric push rod two; 94-torsion spring. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1: Please refer to Figure 1-Figure 7 The present invention provides a technical solution: a welding device for a steel frame, comprising a base 1 and a welding head 11 arranged on the base 1, and also comprising:

[0041] Two arc-shaped support plates 2 are symmetrically arranged on the base 1;

[0042] The C-shaped plate 3 is rotatably arranged in the arc-shaped supporting plate 2;

[0043] A split fixing pipe 4 is arranged on the C-shaped plate 3, and a clamping assembly 5 is arranged inside the split fixing pipe 4, and two steel bars are passed through the two split fixing pipes 4 respectively and clamped and fixed by the clamping assembly 5;

[0044] A driving assembly 6 is arranged on the base 1 and connected to the arc-shaped support plate 2, and is used to drive the two steel bars to move toward each other and dock;

[0045] The rotating assembly 7 is arranged on the arc-shaped support plate 2 and connected to the C-shaped plate 3, and is used to drive the two steel bars to rotate relative to the arc-shaped support plate 2 for cooperation and welding;

[0046] The linkage assembly 8 is arranged on the C-shaped plate 3 and connected to the split fixed pipe 4. After the two arc-shaped support plates 2 are moved to drive the two steel bars to dock, the arc-shaped support plates 2 are continued to be moved while the linkage assembly 8 is used to drive the split fixed pipe 4 to move relative to the C-shaped plate 3 to drive the two steel bars to stagger.

[0047] Specifically, when the device is in use, the two steel bars are passed through the two split fixing tubes 4 respectively and fixed by the clamping assembly 5, and then the driving assembly 6 is started to drive the two steel bars to move so that their ends are butted together. After butting together, the welding head 11 is used for welding, and the rotating assembly 7 is used to drive the two steel bars to rotate synchronously for welding to improve the welding effect. At the same time, after the two ends of the steel bars are butted together, the driving assembly 6 is started again. At this time, the movement of the steel bars is blocked, causing the C-shaped plate 3 to move relative to the steel bars and the linkage assembly 8 is used to drive the two steel bars to move and dislocate, and then the driving assembly 6 is started again to weld a section of one end of the two steel bars together, which is more convenient and practical.

[0048] The split fixed pipe 4 includes an arc plate 1 41 and an arc plate 2 42, and the arc plate 1 41 is rotatably connected to the arc plate 2 42 via a rotating shaft, and the arc plate 1 41 is connected to the C-shaped plate 3;

[0049] An E-shaped plate 43 is slidably connected to the arc plate 1 41, a bayonet 44 is fixedly connected to the E-shaped plate 43, a bayonet slot 45 is provided on the arc plate 2 42, one end of the bayonet 44 is located in the bayonet slot 45 to connect the arc plate 1 41 with the arc plate 2 42;

[0050] A T-shaped sliding protrusion 46 is fixedly connected to one end of the E-shaped plate 43, and a T-shaped sliding groove 47 is opened on the arc-shaped plate 1 41. The T-shaped sliding protrusion 46 is located in the T-shaped sliding groove 47 to guide and limit the sliding of the E-shaped plate 43. Conversely, after moving the E-shaped plate 43 to drive the latch 44 to disengage from the latch groove 45, the arc-shaped plate 2 42 can be opened, so that the welded steel bars can be easily taken out.

[0051] The clamping assembly 5 includes a rectangular plate 48 slidably disposed on the arc plate 1 41, and a rectangular plate 48 is also slidably disposed on the arc plate 2 42. A pusher 49 is disposed on both the arc plate 1 41 and the arc plate 2 42 for pushing the rectangular plate 48 to move and clamp the steel bar;

[0052] The pushing member 49 includes an electric push rod 51 fixedly connected to the arc plate 41, one end of the electric push rod 51 is fixedly connected to an L-shaped plate 52, an inclined groove 53 is provided on the rectangular plate 48, and a sliding column 54 with one end located in the inclined groove 53 is fixedly connected to the L-shaped plate 52. Starting the electric push rod drives the L-shaped plate 52 to move, and then drives the sliding column 54 to slide along the inclined groove 53, thereby driving the rectangular plate 48 to move. The pushing member 49 on the arc plate 42 adopts the same design as that on the arc plate 41.

[0053] The driving assembly 6 includes a shaft 55 rotatably connected to the base 1 through a bearing, two screw rods 56 are symmetrically fixedly connected to the shaft 55, the two screw rods 56 are designed with opposite threads, and a slide plate 57 is fixedly connected to the bottom end of the arc-shaped support plate 2, a slide groove 58 is provided on the base 1, one end of the slide plate 57 slides through the slide groove 58, and the two screw rods 56 correspondingly pass through the two slide plates 57 and are connected to them by threads, and a driving motor 59 is fixedly connected to the base 1, and the output shaft of the driving motor 59 is fixedly connected to the shaft 55. When the driving motor 59 is started, the shaft 55 is driven to rotate, thereby driving the screw rods 56 to rotate, and then the two slide plates 57 and the arc-shaped support plate 2 move.

[0054] The rotating assembly 7 includes an arc-shaped protrusion 61 fixedly connected to the C-shaped plate 3, and a plurality of tooth grooves 62 are evenly and evenly provided on the arc-shaped protrusion 61. The C-shaped plate 3 is rotatably connected to the arc-shaped support plate 2. The arc-shaped support plate 2 is symmetrically rotatably connected to two toothed discs 63 meshing with the tooth grooves 62. Rotating the two toothed discs 63 drives the C-shaped plate 3 to rotate.

[0055] A second shaft 64 is rotatably connected to the base 1, one end of the second shaft 64 slides through the toothed disc 63, a guide protrusion 65 is fixedly connected to the toothed disc 63, a guide groove 66 is provided on the second shaft 64, one end of the guide protrusion 65 is located in the guide groove 66 and is slidably connected to the inner wall of the guide groove to guide and limit the movement of the toothed disc 63, a second drive motor 67 is fixedly connected to the base 1, the output shaft of the second drive motor 67 is fixedly connected to the second shaft 64, and the second drive motor 67 is started to drive the second shaft 64 to rotate, thereby driving the toothed disc 63 to rotate to drive the C-shaped plate 3 to rotate relative to the arc-shaped support plate 2.

[0056] The linkage assembly 8 includes a shaft 3 68 fixedly connected to both ends of the arc-shaped plate 1 41, two shafts 4 69 are symmetrically fixedly connected to the C-shaped plate 3, and a connecting rod 71 is rotatably connected between the two shafts 4 69 and the two shafts 3 68 through a bearing, and the two connecting rods 71 ​​are designed to be parallel;

[0057] A transmission member 72 is provided between the two arc plates 41. When one arc plate 41 is moved relative to the C-shaped plate 3, the transmission member 72 is used to drive the other arc plate 41 to move. Specifically, when the ends of the two steel bars are in contact, the arc support plate 2 is continued to be moved to drive the C-shaped plate 3 to move relative to the arc plate 41, and then the connecting rod 71 is used to drive the arc plate 41 and the steel bars to approach the edge of the C-shaped plate 3 to stagger the two steel bars. The initial positions of the arc plate 41 and the arc plate 2 42 are at the center of the C-shaped plate 3.

[0058] The transmission member 72 includes an injection cylinder 73 fixedly connected to the C-shaped plate 3, the injection cylinder 73 is filled with hydraulic oil, a piston 74 is slidably connected to the injection cylinder 73, one end of the piston 74 is fixedly connected to a push rod 75, one end of the push rod 75 is fixedly connected to a hollow rectangular frame 76, and one end of a shaft 3 68 is correspondingly located in the hollow rectangular frame 76 and slidably connected to the inner wall thereof, and the arc plate 41 moves relative to the C-shaped plate 3 and uses the shaft 3 68 to push the push rod 75 to move, thereby driving the piston 74 to move and push out the hydraulic oil;

[0059] Two injection cylinders 77 are fixedly connected to the base 1. The two injection cylinders 77 are also filled with hydraulic oil and are connected to the two injection cylinders 73 through conduits. Pistons 78 are slidably connected to the two injection cylinders 77. One side of the piston 78 is fixedly connected to a push rod 79. One end of the two push rods 79 is fixedly connected to a shaft 5 81. A shaft 6 82 is rotatably connected to the base 1. One end of the shaft 6 82 passes through the base 1 and is fixedly connected to a lever 83. Both ends of the lever 83 are provided with sliding grooves 84. The two shafts 81 are correspondingly located in the two sliding grooves. 84 and is slidably connected with the inner wall thereof. Specifically, when the arc plate 1 41 inside the C-shaped plate 3 is moved relative to the C-shaped plate 3, the hydraulic oil in the injection cylinder 1 73 is pushed out to the corresponding injection cylinder 2 77, thereby pushing the piston 2 78 to move and driving the push rod 2 79 to move, and then using the lever 83 to pull another piston 2 78 to move, thereby driving another arc plate 1 41 to move, thereby ensuring that the two arc plates 1 41 always move synchronously, thereby ensuring that the butt joint of two identical steel bars is in the center position when welded, thereby facilitating subsequent welding operations and improving the stability of the device during operation;

[0060] A locking assembly 85 is provided on the base 1 for locking the shaft six 82 to lock the arc plate one 41, thereby preventing the two steel bar ends from being misaligned when the two steel bar ends are butt-welded.

[0061] The locking assembly 85 includes a deflection plate 86 fixed to one end of the shaft six 82, and a bolt 87 is threadedly connected to the deflection plate 86. A positioning groove 88 is provided on the base 1, and one end of the bolt 87 contacts the base 1. The bolt 87 is rotated to insert into the positioning groove 88 to lock the arc plate 41.

[0062] A support frame 89 is fixedly connected to the base 1, a guide rod 91 is fixedly connected to the support frame 89, a mounting block 92 is slidably connected to the guide rod 91, an electric push rod 93 is fixedly connected to the mounting block 92, and the protruding end of the electric push rod 93 is fixed to the welding head 11 to facilitate moving the welding head 11 for welding operations.

[0063] Example 2: Please refer to Figure 1-Figure 8 , the present invention provides a technical solution: Example 2 is optimized on the basis of Example 1;

[0064] A torsion spring 94 is sleeved on the shaft 82, and the two ends of the torsion spring 94 are fixedly connected to the shaft 82 and the base 1 respectively. When the shaft 82 is rotated, the torsion spring 94 is twisted to provide it with self-restoring elastic force, thereby facilitating the automatic reset of the device after use, which is more convenient and practical.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0066] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A welding device for a steel frame, comprising a base (1) and a welding head (11) arranged on the base (1), characterized in that: Also included are: Two arc-shaped support plates (2) are symmetrically arranged on the base (1); A C-shaped plate (3) is rotatably arranged in the arc-shaped supporting plate (2); A split fixing pipe (4) is arranged on the C-shaped plate (3), and a clamping assembly (5) is arranged inside the split fixing pipe (4), and two steel bars are passed through the two split fixing pipes (4) respectively and clamped and fixed by the clamping assembly (5); A driving assembly (6) is arranged on the base (1) and connected to the arc-shaped support plate (2), and is used to drive the two steel bars to move toward each other; A rotating assembly (7) is arranged on the arc-shaped support plate (2) and connected to the C-shaped plate (3), and is used to drive the two steel bars to rotate relative to the arc-shaped support plate (2) for cooperative welding; The linkage assembly (8) is arranged on the C-shaped plate (3) and connected to the split fixing pipe (4), and is used to drive the two steel bars to stagger when the two C-shaped plates (3) move.

2. The welding device for steel bar skeleton according to claim 1, characterized in that: The split fixed pipe (4) comprises an arc-shaped plate 1 (41) and an arc-shaped plate 2 (42), and the arc-shaped plate 1 (41) is rotatably connected to the arc-shaped plate 2 (42) via a rotating shaft, and the arc-shaped plate 1 (41) is connected to the C-shaped plate (3); An E-shaped plate (43) is slidably connected to the arc-shaped plate (41), a bayonet (44) is fixedly connected to the E-shaped plate (43), a bayonet groove (45) is provided on the arc-shaped plate (42), and one end of the bayonet groove (44) is located in the bayonet groove (45) to connect the arc-shaped plate (41) and the arc-shaped plate (42); A T-shaped sliding protrusion (46) is fixedly connected to one end of the E-shaped plate (43), a T-shaped sliding groove (47) is provided on the arc-shaped plate (41), and the T-shaped sliding protrusion (46) is located in the T-shaped sliding groove (47) to guide and limit the sliding of the E-shaped plate (43).

3. The welding device for steel bar skeleton according to claim 2, characterized in that: The clamping assembly (5) comprises a rectangular plate (48) slidably arranged on the first arc plate (41), and the second arc plate (42) is also slidably arranged with a rectangular plate (48), and both the first arc plate (41) and the second arc plate (42) are provided with a pushing member (49) for pushing the rectangular plate (48) to move and clamp the steel bar; The pushing member (49) comprises an electric push rod (51) fixedly connected to the arc-shaped plate (41), one end of the electric push rod (51) being fixedly connected to an L-shaped plate (52), an inclined slide groove (53) being provided on the rectangular plate (48), a slide column (54) having one end located in the inclined slide groove (53) being fixedly connected to the L-shaped plate (52), and the pushing member (49) on the arc-shaped plate (42) is of the same design as that on the arc-shaped plate (41).

4. The welding device for a steel bar skeleton according to claim 3 is characterized in that: The driving assembly (6) comprises a shaft (55) rotatably connected to the base (1), two screw rods (56) are symmetrically fixedly connected to the shaft (55), and a slide plate (57) is fixedly connected to the bottom end of the arc-shaped support plate (2), a slide groove (58) is provided on the base (1), one end of the slide plate (57) passes through the slide groove (58), and the two screw rods (56) pass through the two slide plates (57) respectively, and a driving motor (59) is fixedly connected to the base (1), the output shaft of the driving motor (59) is fixed to the shaft (55), and when the driving motor (59) is started, the two arc-shaped support plates (2) are driven to move.

5. The welding device for steel bar skeleton according to claim 4, characterized in that: The rotating assembly (7) comprises an arc-shaped protrusion (61) fixedly connected to the C-shaped plate (3), a plurality of tooth grooves (62) are evenly and equidistantly formed on the arc-shaped protrusion (61), and the C-shaped plate (3) is rotatably connected to the arc-shaped support plate (2), and two toothed discs (63) meshing with the tooth grooves (62) are symmetrically rotatably connected to the arc-shaped support plate (2), and the rotation of the two toothed discs (63) drives the C-shaped plate (3) to rotate; A second shaft (64) is rotatably connected to the base (1), one end of the second shaft (64) passes through the toothed disc (63), a guide protrusion (65) is fixedly connected to the toothed disc (63), a guide groove (66) is provided on the second shaft (64), one end of the guide protrusion (65) is located in the guide groove (66) and is slidably connected to the inner wall thereof to guide and limit the movement of the toothed disc (63), a second drive motor (67) is fixedly connected to the base (1), an output shaft of the second drive motor (67) is fixed to the second shaft (64), and the second drive motor (67) is started to drive the C-shaped plate (3) to rotate.

6. The welding device for a steel bar skeleton according to claim 5, characterized in that: The linkage assembly (8) comprises a shaft three (68) fixedly connected to both ends of the arc-shaped plate one (41); two shafts four (69) are symmetrically fixedly connected to the C-shaped plate (3); connecting rods (71) are rotatably connected between the two shafts four (69) and the two shafts three (68); and the two connecting rods (71) are designed to be parallel; A transmission member (72) is provided between the two arc-shaped plates (41) for driving the other arc-shaped plate (41) to move when one arc-shaped plate (41) is moved.

7. The welding device for a steel bar skeleton according to claim 6, characterized in that: The transmission member (72) comprises an injection cylinder (73) fixedly connected to the C-shaped plate (3), the injection cylinder (73) being filled with hydraulic oil, a piston (74) being slidably connected to the injection cylinder (73), one end of the piston (74) being fixedly connected to a push rod (75), one end of the push rod (75) being fixedly connected to a hollow rectangular frame (76), and one end of a shaft (68) being correspondingly located in the hollow rectangular frame (76) and being slidably connected to its inner wall; Furthermore, two injection cylinders (77) are fixedly connected to the base (1), the two injection cylinders (77) are also filled with hydraulic oil and are connected to the two injection cylinders (73) through conduits. The two injection cylinders (77) are slidably connected with pistons (78), one side of the pistons (78) is fixedly connected with push rods (79), one end of the two push rods (79) is fixedly connected with shafts (81), and the base (1) is rotatably connected with shafts (82), one end of the shafts (82) passes through the base (1) and is fixedly connected with a lever (83), both ends of the lever (83) are provided with sliding grooves (84), and the two shafts (81) are correspondingly located in the two sliding grooves (84); A locking assembly (85) is provided on the base (1) for locking the shaft six (82) to lock the arc-shaped plate one (41).

8. The welding device for a steel bar skeleton according to claim 7, characterized in that: The locking assembly (85) comprises a deflection plate (86) fixed to one end of the shaft six (82), a bolt (87) being threadedly connected to the deflection plate (86), a positioning groove (88) being provided on the base (1), one end of the bolt (87) being in contact with the base (1), and the bolt (87) being rotated to be inserted into the positioning groove (88) to lock the arc plate one (41).

9. The welding device for a steel bar skeleton according to claim 8, characterized in that: The base (1) is fixedly connected to a support frame (89), the support frame (89) is fixedly connected to a guide rod (91), the guide rod (91) is slidably connected to a mounting block (92), the mounting block (92) is fixedly connected to an electric push rod 2 (93), and the protruding end of the electric push rod 2 (93) is fixed to the welding head (11).

10. The welding device for a steel bar skeleton according to claim 9, characterized in that: A torsion spring (94) is sleeved on the sixth shaft (82), and the two ends of the torsion spring (94) are respectively fixedly connected to the sixth shaft (82) and the base (1). When the sixth shaft (82) is rotated, the torsion spring (94) is twisted to provide a self-restoring elastic force.

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