Reinforcement cage fixing and welding equipment for civil construction

Abstract

The invention discloses reinforcement cage fixing and welding equipment for civil construction, and relates to the technical field of welding, the reinforcement cage fixing and welding equipment comprises a fixed base and a movable base, the fixed base and the movable base are both fixedly connected with guide rings, guide blocks distributed in the circumferential direction are placed in the guide rings, and the guide blocks are used for placing main reinforcements; at least three guide blocks close to one side of the movable base are fixedly connected with sleeve rods used for sleeving a steel bar ring, the sleeve rods are provided with protruding blocks, a first spring is placed between every two adjacent guide blocks, the guide ring is fixedly connected with a magnetic frame, and the magnetic frame and one guide block magnetically attract each other. When the number of the main reinforcing steel bars changes due to different strength requirements, the number of the guide blocks and the number of the first springs are correspondingly changed, so that the compression degree of the first springs is adaptively changed, the distance between the adjacent guide blocks is adaptively and automatically changed until the distances between all the adjacent guide blocks are equal, and the safety of the reinforcing steel bars is improved. The distance between adjacent main steel bars does not need to be recalculated and adjusted, and operation is easy and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a steel cage fixing welding device used in civil construction. Background Art

[0002] When welding the steel cage, the positioning welding of the main steel bar and the middle steel bar ring refers to the preliminary welding to firmly connect the main steel bar (longitudinal steel bar) and the middle steel bar ring (transverse stirrup) together to ensure the overall shape and size of the steel cage are stable. Subsequently, the outer ring of the steel cage is automatically roll-welded to form a solid overall structure between the longitudinal steel bars and the transverse stirrups. Specifically, the preliminary welding usually adopts spot welding or short-segment welding to fix at key nodes to prevent the steel bars from shifting during subsequent construction.

[0003] During the positioning welding process of the main steel bars and the middle steel bar ring, iron wire is usually used to tie the two together at the key nodes as a preliminary fixing method, and then welding reinforcement is performed. When different strength requirements cause the number of main steel bars to change, the spacing between adjacent main steel bars needs to be recalculated and adjusted each time the binding is done. This process is difficult, and the differences in technical level and experience of different construction personnel may lead to inconsistent operation results, making it difficult to ensure the uniform quality of each steel cage. Uneven spacing not only affects the appearance, but may also make the steel cage fail to meet engineering standards.

[0004] Based on the above situation, the present invention proposes a steel cage fixing welding device for civil construction. Summary of the invention

[0005] In order to overcome the shortcoming that it is difficult to adjust the distance between adjacent main steel bars when the number of main steel bars changes, the present invention provides a steel cage fixing welding device for civil construction.

[0006] A steel cage fixing welding device for civil construction, comprises a fixed base and a movable base, both of which are fixedly connected with a guide ring, guide blocks distributed circumferentially are placed in the guide ring, the guide blocks are used to place main steel bars, at least three guide blocks close to one side of the movable base are fixedly connected with a sleeve rod for sleeveing ​​the steel bar ring, the sleeve rod is provided with a protrusion, a first spring is placed between adjacent guide blocks, the guide ring is fixedly connected with a magnetic frame, the magnetic frame and one of the guide blocks are magnetically attracted to each other, a side of the guide ring close to the adjacent magnetic frame is rotatably connected with a retaining ring, the retaining ring and the adjacent magnetic frame are magnetically attracted to each other, a side of the guide ring close to the adjacent magnetic frame is provided with a notch for taking and placing the guide block and the first spring, an annular slide groove is provided in the guide ring, the guide block slides along the annular slide groove, the annular slide groove limits the first spring from popping out of the guide ring, and the guide ring close to one side of the sleeve rod is rotatably connected with a welding gun.

[0007] As a preferred technical solution of the present invention, the opening on one side of the annular chute is smaller than the opening on the other side.

[0008] As a preferred technical solution of the present invention, it also includes a baffle corresponding to the guide ring, the baffle is slidably connected to the side of the corresponding guide ring close to the notch, the baffle is used to block the added guide block, a first tension spring is fixed between the baffle and the corresponding guide ring, a baffle is fixed to the side of the baffle ring close to the adjacent baffle, and the baffle is engaged with the adjacent baffle.

[0009] As a preferred technical solution of the present invention, a side of the retaining frame close to the adjacent annular sliding groove is provided with a wedge-shaped surface, and the added guide block is extruded and fitted with the wedge-shaped surface of the retaining frame.

[0010] As a preferred technical solution of the present invention, the corner end faces of the stopper are arranged as arc surfaces, and the stopper is extrusion-fitted with the adjacent stopper ring.

[0011] As a preferred technical solution of the present invention, it also includes fixed rods symmetrically distributed along the guide rings, the fixed rods are fixedly connected to adjacent guide rings, adjacent fixed rods are slidably connected with a locking frame for locking the guide blocks, and a second tension spring is fixedly connected between the fixed rods and the adjacent guide rings.

[0012] As a preferred technical solution of the present invention, the lock frame contacts the adjacent retaining ring, and the contact surface of the retaining ring is set as an inclined surface, and the retaining ring is pressed and matched with the adjacent lock frame through the inclined surface.

[0013] As a preferred technical solution of the present invention, it also includes a clamping frame distributed at equal intervals along the sleeve rod, the clamping frame is slidably connected to the adjacent sleeve rod, the clamping frame is used to limit the steel ring, and a third tension spring is fixed between the clamping frame and the adjacent sleeve rod.

[0014] As a preferred technical solution of the present invention, the end of the bracket away from the protrusion is set as a right triangle, which restricts the steel ring to enter but not exit, and the other ends of the bracket are set as isosceles triangles, which do not restrict the movement direction of the steel ring.

[0015] As a preferred technical solution of the present invention, it also includes a push frame corresponding to the sleeve rod, the push frame is slidably connected to the corresponding sleeve rod, one side of the push frame contacts the adjacent lock frame, the other side of the push frame contacts the card frame, the adjacent push frames are squeezed and matched with the card frames on the same side, and a second spring is fixed between the protrusion and the adjacent push frame.

[0016] Beneficial effects: 1. When the number of main steel bars changes due to different strength requirements, the present invention adaptively changes the degree of compression of the first spring by correspondingly changing the number of guide blocks and the first spring, so that the distance between adjacent guide blocks adaptively changes automatically until the distances between all adjacent guide blocks are equal. There is no need to recalculate and adjust the distances between adjacent main steel bars, and the operation is simple and convenient.

[0017] 2. The present invention sets a clamping frame so that the last steel bar ring is fixed between the rightmost clamping frame and the middle clamping frame, and the remaining steel bar rings are limited between the leftmost clamping frame and the protrusion. There is no need to use additional wire to tie them, which is convenient for fixing the position of the steel bar rings, improves the accuracy of welding, and is convenient for taking and placing the steel bar rings in sequence during the process of moving to the left along the main steel bar for welding.

[0018] 3. The present invention blocks the added guide block by a blocking frame, so that when adding the added first spring between the added guide block and the guide block on the magnetic frame, there is no need to hold the added guide block with hands all the time, and when the blocking ring is pulled back in reverse afterwards, the blocking block automatically separates from the guide block, thus, it does not affect the readjustment of the compression degree of all the first springs and the readjustment of the spacing of all the guide blocks. In addition, by fixing the blocking block by the blocking frame, the blocking ring can be fixed to prevent the blocking ring from rotating at will.

[0019] 4. The present invention automatically clamps each guide block through a locking frame to prevent the guide block from sliding due to the gravity of the main steel bars when each main steel bar is placed horizontally between two opposite guide blocks on the left and right, thereby avoiding changes in the spacing between adjacent main steel bars.

[0020] 5. The present invention uses a locking frame to push the pushing frame, and the clamping frame and the pushing frame are squeezed together, so that when multiple steel bar rings are placed inside a circle of main steel bars from the right side, the steel bar rings do not need to squeeze the clamping frame open one by one, that is, the steel bar rings are not affected by the clamping frame when they are placed, thereby improving the efficiency of placing the steel bar rings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 It is a three-dimensional structural schematic diagram of components such as a movable base, a guide ring and a guide block of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the magnetic frame, retaining ring, welding gun and other components separated from each other according to the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the retaining frame, the first tension spring, the retaining block and other components of the present invention.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the retaining ring, retaining frame and retaining block of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixing rod, the locking frame, the second tension spring and other components of the present invention.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the retaining ring, the fixing rod, the locking frame and the second tension spring of the present invention.

[0028] Figure 8 It is a three-dimensional structural schematic diagram of the guide ring, sleeve rod, bracket and other components of the present invention.

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the sleeve rod, the protrusion, the bracket and the third tension spring of the present invention.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the clamping frame, the pushing frame, the second spring and other components of the present invention.

[0031] Among them: 1-fixed base, 101-main steel bar, 102-steel ring, 2-movable base, 3-guide ring, 4-guide block, 401-sleeve rod, 402-bump, 5-first spring, 6-magnetic frame, 7-blocking ring, 701-notch, 702-annular slide, 8-welding gun, 9-blocking frame, 10-first tension spring, 11-block, 12-fixed rod, 13-locking frame, 14-second tension spring, 15-card frame, 16-third tension spring, 17-push frame, 18-second spring. DETAILED DESCRIPTION

[0032] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0033] Embodiment 1: A steel cage fixing welding device for civil construction, such as Figure 1-Figure 3 As shown, it includes a fixed base 1 and a movable base 2, the tops of the fixed base 1 and the movable base 2 are fixedly connected with a guide ring 3, twelve circumferentially distributed guide blocks 4 are placed in the guide ring 3, the guide blocks 4 have placement holes, a main steel bar 101 is horizontally placed between the placement holes of the left and right two opposite guide blocks 4, three guide blocks 4 close to one side of the movable base 2 are fixedly connected with a sleeve rod 401, the sleeve rod 401 is used to cover the steel bar ring 102, and a protrusion 402 is arranged on the sleeve rod 401, a first spring 5 is placed between adjacent guide blocks 4, and a magnetic frame 6 is fixedly connected to the guide ring 3, and the magnetic frame 6 is connected to the guide ring 3. A guide block 4 is magnetically attracted to each other, and the fixed guide block 4 is used as a positioning block. The guide ring 3 is rotatably connected to a retaining ring 7 on one side close to the adjacent magnetic frame 6. The retaining ring 7 and the adjacent magnetic frame 6 are magnetically attracted to each other. A notch 701 is provided on the side of the guide ring 3 close to the adjacent magnetic frame 6. The notch 701 is used to take and place the guide block 4 and the first spring 5. An annular groove 702 is provided inside the guide ring 3. The guide block 4 slides along the annular groove 702. The opening on the outside of the annular groove 702 is smaller than the opening on the inside, which is used to limit the first spring 5 from popping out of the guide ring 3. The outer side of the guide ring 3 on the right side is rotatably connected to a welding gun 8.

[0034] like Figure 1 , Figure 2 and Fig. 9As shown, it also includes brackets 15 distributed at equal intervals along the sleeve rod 401, and the number of brackets 15 on each sleeve rod 401 is three. The brackets 15 are slidably connected to the adjacent sleeve rods 401, and the brackets 15 are used to limit the steel ring 102, so there is no need to use additional wire for binding and fixing. The end of the bracket 15 away from the side of the protrusion 402 is set to a right triangle, which limits the steel ring 102 to only enter but not exit. The other ends of the brackets 15 are set to isosceles triangles, which do not limit the moving direction of the steel ring 102, and a third tension spring 16 is fixed between the bracket 15 and the adjacent sleeve rod 401.

[0035] When using this equipment to fix and weld the steel cage, first pass each main steel bar 101 through the placement hole from right to left, so that the main steel bar 101 is placed horizontally between the two guide blocks 4 opposite to each other on the left and right, and then put multiple steel bar circles 102 into the interior between a circle of main steel bars 101 from the right side in sequence. In the process of putting in the steel bar circles 102, the steel bar circles 102 squeeze the bracket 15 in sequence and slide toward the side of the stretched third tension spring 16. When the steel bar circles 102 are separated from the bracket 15, the third tension spring 16 is reset to drive the bracket 15 to slide in the opposite direction and reset. Finally, the last steel bar circle 102 is fixedly limited between the rightmost bracket 15 and the middle bracket 15, and the remaining steel bar circles 102 are limited between the leftmost bracket 15 and the protrusion 402. Then, control the welding gun 8 to rotate to the contact point between the fixed steel bar circle 102 and the main steel bar 101 for welding. After the welding gun 8 rolls one circle, a steel bar circle 102 can be welded and fixed on the main steel bar 101.

[0036] Next, push the movable base 2 to move to the left, and the movable base 2 drives the guide ring 3, guide block 4, sleeve rod 401, first spring 5, magnetic frame 6, retaining ring 7 and welding gun 8 and other components thereon to move a fixed distance to the left relative to the main steel bar 101, and then push a steel bar ring 102 to the right from between the leftmost bracket 15 and the protrusion 402 until the steel bar ring 102 is limited and fixed between the rightmost bracket 15 and the middle bracket 15, and the welding gun 8 rolls one more circle for welding, and this is repeated until the entire section of the main steel bar 101 is clamped by the steel bar ring 102, and the welded steel cage can be pulled to the right out of the welding equipment.

[0037] When welding the next steel cage, if the number of main steel bars 101 changes, the number of guide blocks 4 and first springs 5 ​​will be changed accordingly. For example, if the number of main steel bars 101 increases by one, a guide block 4 and a first spring 5 will be added to the left and right guide rings 3 accordingly. The specific adding operation is as follows: first push open the retaining ring 7 to rotate the retaining ring 7 to the side away from the notch 701. When the retaining ring 7 no longer blocks the notch 701, first compress the first spring 5 at the notch 701, and then put the added guide block 4 into the annular groove 702 of the guide ring 3, and then add the first spring 5 to the notch 701. A first spring 5 is added between the guide block 4 and the guide block 4 on the magnetic frame 6, and then the retaining ring 7 is pulled back in the reverse direction, so that the retaining ring 7 rotates in the reverse direction to block the notch 701. In this way, when the number of main steel bars 101 changes due to different strength requirements, the present invention can adaptively change the degree of compression of the first spring 5 by correspondingly changing the number of guide blocks 4 and the first spring 5, so that the distance between adjacent guide blocks 4 can be adaptively changed automatically until the distances between all adjacent guide blocks 4 are equal, without the need to recalculate and adjust the distances between adjacent main steel bars 101, and the operation is simple and convenient.

[0038] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 4 and Figure 5 As shown, it also includes a baffle 9 corresponding to the guide ring 3, and the baffle 9 is slidably connected to the side of the corresponding guide ring 3 close to the notch 701 along the left and right directions. The baffle 9 is used to block the added guide block 4. The side of the baffle 9 close to the adjacent annular groove 702 is set as a wedge-shaped surface, and the added guide block 4 is squeezed and fitted with the wedge-shaped surface of the baffle 9. A first tension spring 10 is fixedly connected between the baffle 9 and the corresponding guide ring 3, and a baffle 11 is fixedly connected to the side of the baffle ring 7 close to the adjacent baffle frame 9. The baffle 11 is engaged with the adjacent baffle ring 7, and the corner end faces of the baffle 11 are set as arc surfaces, and the baffle 11 is squeezed and fitted with the adjacent baffle frame 9 through the arc surface.

[0039] When adding the added first spring 5 between the added guide block 4 and the guide block 4 on the magnetic frame 6, it is necessary to hold the added guide block 4 with your hand all the time, otherwise the added guide block 4 will slide to contact the magnetic frame 6 under the influence of the original first spring 5, making it inconvenient to add the added first spring 5. To avoid the above situation, the specific operation is as follows: When the retaining ring 7 is pushed open, the retaining ring 7 drives the retaining block 11 to rotate, so that the retaining block 11 is separated from the retaining frame 9. At this time, the first tension spring 10 in the stretched state is reset to drive the retaining frame 9 to slide until its wedge-shaped surface extends into the annular groove 702 of the guide ring 3. Subsequently, when the added guide block 4 is placed in the annular groove 702 of the guide ring 3, the added guide block 4 can squeeze the wedge-shaped surface of the retaining frame 9 to make the retaining frame 9 slide to the side of the stretched first tension spring 10. When the added guide block 4 is separated from the wedge-shaped surface of the retaining frame 9, the added guide block 4 passes over the retaining frame 9, and the first tension spring 10 is reset, so that the retaining frame 9 blocks the added guide block 4. Therefore, when adding the added first spring 5 between the added guide block 4 and the guide block 4 on the magnetic frame 6, there is no need to hold the added guide block 4 with hands all the time. Afterwards, when pulling back the retaining ring 7 in the reverse direction, the retaining ring 7 drives the retaining block 11 to rotate in the reverse direction, so that the retaining block 11 pushes the retaining frame 9 in the direction of stretching the first spring 5 until the retaining frame 9 no longer blocks the guide block 4. In this way, after adding the added guide block 4 and the first spring 5, it does not affect the readjustment of the compression degree of all the first springs 5 ​​and the readjustment of the spacing of all the guide blocks 4. In addition, the retaining block 11 is fixed by the retaining frame 9, so that the retaining ring 7 can be fixed to prevent the retaining ring 7 from rotating at will.

[0040] Embodiment 3: Based on embodiment 2, Figure 6 and Figure 7 As shown, it also includes two fixed rods 12 symmetrically distributed along the guide ring 3, the fixed rods 12 are fixedly connected to the adjacent guide rings 3, and a locking frame 13 is slidably connected between the two adjacent fixed rods 12 along the left and right directions. When the retaining ring 7 blocks the notch 701, the locking frame 13 locks all the guide blocks 4, the locking frame 13 contacts the adjacent retaining ring 7, and the contact surface of the retaining ring 7 is set as an inclined surface. The retaining ring 7 is squeezed and matched with the adjacent locking frame 13 through the inclined surface, and a second tension spring 14 is fixedly connected between the fixed rod 12 and the adjacent guide ring 3.

[0041] When the retaining ring 7 blocks the notch 701, the fixed retaining ring 7 squeezes the locking frame 13, so that the second tension spring 14 is in a stretched state. At this time, the locking frame 13 clamps each guide block 4, so as to prevent the guide block 4 from sliding due to the gravity of the main steel bars 101 when each main steel bar 101 is placed horizontally between two opposite guide blocks 4 on the left and right, thereby avoiding changes in the spacing between adjacent main steel bars 101. When the retaining ring 7 is pushed open, the second tension spring 14 resets and drives the locking frame 13 to slide along the fixed rod 12 to the side away from the adjacent guide ring 3.

[0042] Embodiment 4: Based on embodiment 3, Figure 8 and Fig.10As shown, it also includes a push frame 17 corresponding to the sleeve rod 401, the push frame 17 is slidably connected to the corresponding sleeve rod 401, one side of the push frame 17 contacts the adjacent lock frame 13, and the other side of the push frame 17 contacts the adjacent card frame 15. The push frame 17 is squeezed and matched with the card frame 15 on the same side, and a second spring 18 is fixed between the protrusion 402 and the adjacent push frame 17.

[0043] When the locking frame 13 clamps each guide block 4, the locking frame 13 squeezes the push frame 17, and the second spring 18 is in a compressed state. When the retaining ring 7 is pushed away, so that the locking frame 13 slides along the fixed rod 12 to the side away from the adjacent guide ring 3, the locking frame 13 no longer squeezes the push frame 17, and the second spring 18 gradually resets to drive the push frame 17 to slide to the side of the squeezed clamping frame 15, so that all the clamping frames 15 slide inward. In this way, when multiple steel bar rings 102 are placed inside a circle of main steel bars 101 from the right side, the steel bar rings 102 do not need to squeeze the clamping frames 15 open one by one, that is, the steel bar rings 102 are not affected by the clamping frames 15 when they are placed, thereby improving the placement efficiency of the steel bar rings 102, and placing the last steel bar ring 102 between the rightmost clamping frame 15 and the middle clamping frame 15.

[0044] When the retaining ring 7 is pulled back so that the locking frame 13 clamps the guide blocks 4, the locking frame 13 squeezes the push frame 17 to slide toward the side of the released clamping frame 15, so that all the clamping frames 15 are reset by the action of the third tension spring 16, and the clamping frame 15 squeezes the push frame 17 to slide in the opposite direction to reset. At this time, the last steel bar ring 102 is fixedly limited between the rightmost clamping frame 15 and the middle clamping frame 15.

[0045] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A steel cage fixing welding device for civil construction, comprising a fixed base (1) and a movable base (2), characterized in that: The fixed base (1) and the movable base (2) are both fixedly connected to a guide ring (3), and guide blocks (4) distributed circumferentially are placed in the guide ring (3). The guide blocks (4) are used to place the main steel bars (101). At least three guide blocks (4) close to one side of the movable base (2) are fixedly connected to a sleeve rod (401) for sleeve the steel bar ring (102), and the sleeve rod (401) is provided with a protrusion (402). A first spring (5) is placed between adjacent guide blocks (4). The guide ring (3) is fixedly connected to a magnetic frame (6), and the magnetic frame (6) and one of the guide blocks (4) are magnetically attracted to each other. A retaining ring (7) is rotatably connected to one side of the positioning ring (3) close to the adjacent magnetic frame (6), and the retaining ring (7) and the adjacent magnetic frame (6) are magnetically attracted to each other. A notch (701) for taking and placing the positioning block (4) and the first spring (5) is provided on one side of the positioning ring (3) close to the adjacent magnetic frame (6). An annular sliding groove (702) is provided inside the positioning ring (3), and the positioning block (4) slides along the annular sliding groove (702). The annular sliding groove (702) limits the first spring (5) from popping out of the positioning ring (3). A welding gun (8) is rotatably connected to the positioning ring (3) close to the sleeve rod (401).

2. A steel cage fixing welding device for civil construction as claimed in claim 1, characterized in that: The opening on one side of the annular slide groove (702) is smaller than the opening on the other side.

3. A steel cage fixing welding device for civil construction as claimed in claim 2, characterized in that: The invention also comprises a retaining frame (9) corresponding to the guide ring (3), the retaining frame (9) being slidably connected to a side of the corresponding guide ring (3) close to the notch (701), the retaining frame (9) being used to retain the added guide block (4), a first tension spring (10) being fixedly connected between the retaining frame (9) and the corresponding guide ring (3), a retaining block (11) being fixedly connected to a side of the retaining ring (7) close to the adjacent retaining frame (9), the retaining block (11) being engaged with the adjacent retaining frame (9).

4. A steel cage fixing welding device for civil construction as claimed in claim 3, characterized in that: A side of the retaining frame (9) close to the adjacent annular slide groove (702) is provided as a wedge-shaped surface, and the added guide block (4) is extruded and fitted with the wedge-shaped surface of the retaining frame (9).

5. A steel cage fixing welding device for civil construction as claimed in claim 4, characterized in that: The corner end faces of the stopper (11) are arranged as arc surfaces, and the stopper (11) is extrusion-fitted with the adjacent stopper ring (7).

6. A steel cage fixing welding device for civil construction as claimed in claim 5, characterized in that: It also includes fixed rods (12) symmetrically distributed along the guide rings (3), the fixed rods (12) being fixedly connected to adjacent guide rings (3), a lock frame (13) for locking the guide block (4) being slidably connected between adjacent fixed rods (12), and a second tension spring (14) being fixedly connected between the fixed rods (12) and adjacent guide rings (3).

7. A steel cage fixing welding device for civil construction as claimed in claim 6, characterized in that: The lock frame (13) contacts the adjacent retaining ring (7), and the contact surface of the retaining ring (7) is arranged as an inclined surface, and the retaining ring (7) is pressed and matched with the adjacent lock frame (13) via the inclined surface.

8. A steel cage fixing welding device for civil construction as claimed in claim 7, characterized in that: It also includes brackets (15) distributed at equal intervals along the sleeve rods (401), the brackets (15) being slidably connected to adjacent sleeve rods (401), the brackets (15) being used to limit the position of the steel bar ring (102), and a third tension spring (16) being fixedly connected between the brackets (15) and the adjacent sleeve rods (401).

9. A steel cage fixing welding device for civil construction as claimed in claim 8, characterized in that: The end of the bracket (15) on the side away from the protrusion (402) is configured as a right triangle to restrict the steel bar ring (102) from entering but not exiting, and the other ends of the bracket (15) are configured as isosceles triangles to not restrict the movement direction of the steel bar ring (102).

10. A steel cage fixing welding device for civil construction as claimed in claim 9, characterized in that: The invention also includes a push frame (17) corresponding to the sleeve rod (401), the push frame (17) being slidably connected to the corresponding sleeve rod (401), one side of the push frame (17) being in contact with the adjacent lock frame (13), the other side of the push frame (17) being in contact with the card frame (15), the adjacent push frames (17) being pressed and matched with the card frame (15) on the same side, and a second spring (18) being fixedly connected between the protrusion (402) and the adjacent push frame (17).

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