A steel reinforcement cage fixing and welding device for civil engineering construction

Abstract

The present invention discloses a steel reinforcement cage fixing and welding device for civil engineering construction, which relates to the technical field of welding. It includes a fixed base and a moving base. Both the fixed base and the moving base are fixedly connected with guide rings. Guide blocks distributed circumferentially are placed inside the guide rings. The guide blocks are used for placing main steel bars. At least three guide blocks close to the side of the moving base are fixedly connected with sleeve rods for sleeving steel bar rings. The sleeve rods are provided with convex blocks. First springs are placed between adjacent guide blocks. The guide rings are fixedly connected with magnetic frames, and the magnetic frames are magnetically attracted to one of the guide blocks. When the number of main steel bars changes due to different strength requirements, the present invention adaptively changes the compression degree of the first springs by correspondingly changing the number of guide blocks and first springs, so that the distance between adjacent guide blocks adaptively changes automatically until the distances between all adjacent guide blocks are equal, without having to recalculate and adjust the distance between adjacent main steel bars, and the operation is simple and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly relates to a steel cage fixing and welding device for civil engineering construction. Background Art

[0002] During the welding of the steel cage, the positioning welding of the main reinforcement bars and the intermediate reinforcement rings refers to firmly connecting the main reinforcement bars (longitudinal reinforcement bars) and the intermediate reinforcement rings (transverse stirrups) through preliminary welding to ensure the stability of the overall shape and size of the steel cage. Subsequently, automatic rolling welding is performed on the outer ring of the steel cage to form a firm overall structure between the longitudinal reinforcement bars and the transverse stirrups. Specifically, preliminary welding usually adopts spot welding or short-section welding methods to fix at key nodes and prevent the reinforcement bars from shifting during subsequent construction.

[0003] During the positioning welding of the main reinforcement bars and the intermediate reinforcement rings, usually wire is first used to tie the two together at key nodes as a preliminary fixing means, and then welding reinforcement is carried out. When the number of main reinforcement bars changes due to different strength requirements, the spacing between adjacent main reinforcement bars needs to be recalculated and adjusted each time of tying. This process is difficult, and the technical levels and experience differences of different construction workers may lead to inconsistent operation results, making it difficult to ensure the quality uniformity of each steel cage. Uneven spacing not only affects the appearance but also may cause the steel cage not to meet the engineering standards.

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

[0005] In order to overcome the disadvantage of being difficult to adjust the spacing between adjacent main reinforcement bars when the number of main reinforcement bars changes, the present invention provides a steel cage fixing and welding device for civil engineering construction.

[0006] A steel cage fixing and welding device for civil engineering construction includes a fixed base and a moving base. Guide rings are fixedly connected to both the fixed base and the moving base. Guide blocks distributed circumferentially are placed inside the guide rings. The guide blocks are used to place the main reinforcement bars. At least three guide blocks on the side close to the moving base are fixedly connected with sleeve rods for sleeving the reinforcement rings. The sleeve rods are provided with convex blocks. First springs are placed between adjacent guide blocks. A magnetic frame is fixedly connected to the guide ring. The magnetic frame is magnetically attracted to one of the guide blocks. A retaining ring is rotatably connected to the side of the guide ring close to the adjacent magnetic frame. The retaining ring is magnetically attracted to the adjacent magnetic frame. An opening is formed on the side of the guide ring close to the adjacent magnetic frame for taking and placing the guide blocks and the first springs. An annular sliding groove is formed inside the guide ring. The guide blocks slide along the annular sliding groove. The annular sliding groove restricts the first springs from popping out of the guide ring. A welding gun is rotatably connected to the guide ring on the side close to the sleeve rods.

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

[0008] As a preferred technical solution of the present invention, it further includes a blocking frame corresponding to the guiding ring. The blocking frame is slidably connected to the side of the corresponding guiding ring close to the notch. The blocking frame is used to block the filled guiding block. A first tension spring is fixedly connected between the blocking frame and the corresponding guiding ring. A blocking block is fixedly connected to the side of the blocking ring close to the adjacent blocking frame, and the blocking block is engaged with the adjacent blocking frame.

[0009] As a preferred technical solution of the present invention, the side of the blocking frame close to the adjacent annular chute is set as a wedge-shaped surface, and the filled guiding block is in extrusion fit with the wedge-shaped surface of the blocking frame.

[0010] As a preferred technical solution of the present invention, the corner end face of the blocking block is set as an arc surface, and the blocking block is in extrusion fit with the adjacent blocking ring.

[0011] As a preferred technical solution of the present invention, it further includes fixing rods symmetrically distributed along the guiding ring. The fixing rods are fixedly connected to the adjacent guiding rings. A locking frame for locking the guiding block is slidably connected between the adjacent fixing rods. A second tension spring is fixedly connected between the fixing rods and the adjacent guiding rings.

[0012] As a preferred technical solution of the present invention, the locking frame contacts the adjacent blocking ring, and the contact surface of the blocking ring is set as an inclined surface. The blocking ring is in extrusion fit with the adjacent locking frame through the inclined surface.

[0013] As a preferred technical solution of the present invention, it further includes clamping frames equally spaced along the sleeve rod. The clamping frames are slidably connected to the adjacent sleeve rods. The clamping frames are used to limit the steel bar ring. A third tension spring is fixedly connected between the clamping frames and the adjacent sleeve rods.

[0014] As a preferred technical solution of the present invention, the end of the clamping frame on the side far from the convex block is set as a right triangle to limit the steel bar ring to only enter and not exit, and the ends of the other clamping frames are set as isosceles triangles without restricting the moving direction of the steel bar ring.

[0015] As a preferred technical solution of the present invention, it further includes a pushing frame corresponding to the sleeve rod. The pushing frame is slidably connected to the corresponding sleeve rod. One side of the pushing frame contacts the adjacent locking frame, and the other side of the pushing frame contacts the clamping frame. The adjacent pushing frames and the clamping frames on the same side are in extrusion fit. A second spring is fixedly connected between the convex block and the adjacent pushing frame.

[0016] Beneficial effects: 1. When the number of main steel bars changes due to different strength requirements in the present invention, by correspondingly changing the number of guiding blocks and the first springs, the compression degree of the first springs is adaptively changed, so that the distance between adjacent guiding blocks is adaptively and automatically variable until the distances between all adjacent guiding blocks are equal, without the need to recalculate and adjust the distance between adjacent main steel bars, and the operation is simple and convenient.

[0017] 2. By providing a clamping frame in the present invention, the last steel bar loop is fixed and limited between the rightmost clamping frame and the middle clamping frame, and the remaining steel bar loops are limited between the leftmost clamping frame and the bump. There is no need to tie them with wire additionally, which facilitates fixing the position of the steel bar loops, improves the welding accuracy, and is convenient for successively picking and placing the steel bar loops during the process of moving leftward along the main steel bar for welding.

[0018] 3. By using a blocking frame to block the added guiding block in the present invention, when adding the added first spring between the added guiding block and the guiding block on the magnetic frame, there is no need to always hold the added guiding block by hand, and when pulling back the retaining ring in the reverse direction later, the blocking block automatically detaches from the guiding block. In this way, it does not affect all the first springs to readjust the compression degree and all the guiding blocks to readjust the spacing. In addition, by fixing the blocking block with the blocking frame, the retaining ring can be fixed to prevent the retaining ring from rotating randomly.

[0019] 4. By using a locking frame to automatically clamp each guiding block in the present invention, when placing each main steel bar horizontally between two relatively left and right guiding blocks, the guiding block is prevented from sliding due to the gravity of the main steel bar, thereby avoiding the change of the spacing between adjacent main steel bars.

[0020] 5. By using the locking frame to push the pushing frame and the extrusion cooperation between the clamping frame and the pushing frame in the present invention, when putting multiple steel bar loops into the inside between one circle of main steel bars from the right side, the steel bar loops do not need to push open the clamping frame successively, that is, the steel bar loops are not affected by the clamping frame when being put in, improving the putting-in efficiency of the steel bar loops. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

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

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

[0028] Figure 8 This is a three-dimensional structural schematic diagram of components such as the guiding ring, sleeve rod, and clamping frame of the present invention.

[0029] Figure 9 This is a three-dimensional structural schematic diagram of the sleeve rod, bump, clamping frame, and third tension spring of the present invention.

[0030] Figure 10 This is a three-dimensional structural schematic diagram of components such as the clamping frame, pushing frame, and second spring of the present invention.

[0031] Wherein: 1 - fixed base, 101 - main steel bar, 102 - steel bar ring, 2 - moving base, 3 - guiding ring, 4 - guiding block, 401 - sleeve rod, 402 - bump, 5 - first spring, 6 - magnetic frame, 7 - retaining ring, 701 - notch, 702 - annular sliding groove, 8 - welding gun, 9 - retaining frame, 10 - first tension spring, 11 - stop block, 12 - fixed rod, 13 - locking frame, 14 - second tension spring, 15 - clamping frame, 16 - third tension spring, 17 - pushing frame, 18 - second spring. Specific Embodiment

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

[0033] Embodiment 1: A steel reinforcement cage fixing and welding device for civil engineering construction, as Figures 1 - 3 shown, includes a fixed base 1 and a moving base 2. Guide rings 3 are fixedly connected to the tops of the fixed base 1 and the moving base 2. Twelve circumferentially distributed guide blocks 4 are placed inside the guide rings 3. The guide blocks 4 are provided with placement holes. A main steel bar 101 is horizontally placed between the placement holes of two opposite left and right guide blocks 4. Three guide blocks 4 close to the side of the moving base 2 are fixedly connected with sleeve rods 401. The sleeve rods 401 are used to sleeve the steel bar rings 102. Bumps 402 are provided on the sleeve rods 401. First springs 5 are placed between adjacent guide blocks 4. A magnetic frame 6 is fixedly connected to the guide ring 3. The magnetic frame 6 is magnetically attracted to one of the guide blocks 4. This fixed guide block 4 serves as a positioning block. A retaining ring 7 is rotatably connected to the side of the guide ring 3 close to the adjacent magnetic frame 6. The retaining ring 7 is magnetically attracted to the adjacent magnetic frame 6. A notch 701 is opened on the side of the guide ring 3 close to the adjacent magnetic frame 6. The notch 701 is used for taking and placing the guide blocks 4 and the first springs 5. An annular sliding groove 702 is opened inside the guide ring 3. The guide blocks 4 slide along the annular sliding groove 702. The opening on the outside of the annular sliding groove 702 is smaller than the opening on the inside, which is used to limit the first springs 5 from popping out of the guide ring 3. A welding gun 8 is rotatably connected to the outside of the right guide ring 3 along the circumference.

[0034] As Figure 1 、 Figure 2 and Figure 9As shown in the figure, it further includes a clamping frame 15 evenly distributed along the sleeve rod 401. The number of clamping frames 15 on each sleeve rod 401 is three. The clamping frame 15 is slidably connected to the adjacent sleeve rod 401. The clamping frame 15 is used to limit the steel bar ring 102, so that there is no need to tie and fix it with wire additionally. The end of the clamping frame 15 on the side far from the convex block 402 is set as a right triangle to restrict the steel bar ring 102 from entering but not exiting. The ends of the remaining clamping frames 15 are set as isosceles triangles, which do not restrict the moving direction of the steel bar ring 102. A third tension spring 16 is fixedly connected between the clamping frame 15 and the adjacent sleeve rod 401.

[0035] When using this equipment to fix and weld the steel bar cage, first pass each main steel bar 101 through the placing holes from right to left, so that the main steel bar 101 is placed horizontally between the two guiding blocks 4 opposite to each other left and right. Then, sequentially place multiple steel bar rings 102 into the inside between a circle of main steel bars 101 from the right side. During the process of placing the steel bar rings 102, the steel bar rings 102 sequentially squeeze the clamping frames 15 and slide towards the side where the third tension spring 16 is stretched. When the steel bar ring 102 is separated from the clamping frame 15, the third tension spring 16 resets and drives the clamping frame 15 to slide back in the reverse direction. Finally, the last steel bar ring 102 is fixed and limited between the rightmost clamping frame 15 and the middle clamping frame 15, and the remaining steel bar rings 102 are limited between the leftmost clamping frame 15 and the convex block 402. Then, control the welding gun 8 to rotate to the contact point between the fixed steel bar ring 102 and the main steel bar 101 for welding. After the welding gun 8 rolls one circle, a steel bar ring 102 can be welded and fixed on the main steel bar 101.

[0036] Next, push the moving base 2 to move leftward. The moving base 2 drives the components such as the guiding ring 3, guiding block 4, sleeve rod 401, first spring 5, magnetic frame 6, retaining ring 7, and welding gun 8 on it to move leftward by a fixed distance relative to the main steel bar 101 as a whole. Then, push a steel bar ring 102 from between the leftmost clamping frame 15 and the convex block 402 to the right until the steel bar ring 102 is limited and fixed between the rightmost clamping frame 15 and the middle clamping frame 15. The welding gun 8 rolls one circle again for welding. Repeat this process until the entire section of the main steel bar 101 is hooped with steel bar rings 102, and then the welded steel bar cage can be pulled out of this welding equipment to the right.

[0037] When welding the next steel reinforcement cage, if the number of main steel bars 101 changes, the number of guide blocks 4 and the first springs 5 are correspondingly changed. For example, if the number of main steel bars 101 increases by one, one guide block 4 and one first spring 5 are correspondingly added to both the left and right guide rings 3. The specific adding operation is as follows: First, push open the retaining ring 7 so that the retaining ring 7 rotates 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, then place the added guide block 4 into the annular chute 702 of the guide ring 3, and then add the added first spring 5 between the added guide block 4 and the guide block 4 on the magnetic frame 6. After that, pull back the retaining ring 7 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 in the present invention, by correspondingly changing the number of guide blocks 4 and the first springs 5, the compression degree of the first spring 5 is adaptively changed, so that the distance between adjacent guide blocks 4 is adaptively and automatically changed until the distances between all adjacent guide blocks 4 are equal, without having to recalculate and adjust the distance between adjacent main steel bars 101, and the operation is simple and convenient.

[0038] Example 2: On the basis of Example 1, as Figure 1 , Figure 4 and Figure 5 shown, it further includes a retaining frame 9 corresponding to the guide ring 3. The retaining frame 9 is slidably connected to the side of the corresponding guide ring 3 close to the notch 701 in the left-right direction. The retaining frame 9 is used to block the added guide block 4. The side of the retaining frame 9 close to the adjacent annular chute 702 is set as a wedge surface. The added guide block 4 is in extrusion fit with the wedge surface of the retaining frame 9. A first tension spring 10 is fixedly connected between the retaining frame 9 and the corresponding guide ring 3. A retaining block 11 is fixedly connected to the side of the retaining ring 7 close to the adjacent retaining frame 9. The retaining block 11 is engaged with the adjacent retaining ring 7. The corner end surface of the retaining block 11 is set as an arc surface. The retaining block 11 is in extrusion fit with the adjacent retaining frame 9 through the arc surface.

[0039] Since 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 always hold the added guide block 4 by hand, otherwise the added guide block 4 will slide to contact the magnetic frame 6 under the influence of the original first spring 5, which is not convenient for adding the added first spring 5. To avoid the above situation, the specific operation is as follows:

[0040] When pushing the retaining ring 7, the retaining ring 7 drives the stop block 11 to rotate, causing the stop block 11 to disengage from the stop frame 9. At this time, the first tension spring 10 in the stretched state resets and drives the stop frame 9 to slide until its wedge surface extends into the annular chute 702 of the guide ring 3. Subsequently, when the added guide block 4 is placed into the annular chute 702 of the guide ring 3, the added guide block 4 can squeeze the wedge surface of the stop frame 9, causing the stop frame 9 to slide towards the side where the first tension spring 10 is stretched. When the added guide block 4 disengages from the wedge surface of the stop frame 9, the added guide block 4 passes over the stop frame 9, and the first tension spring 10 resets, causing the stop frame 9 to block the added guide block 4. In this way, when adding the added first spring 5 between the added guide block 4 and the guide block 4 on the magnetic frame 6 later, there is no need to always hold the added guide block 4 by hand. After that, when pulling back the retaining ring 7 in the reverse direction, the retaining ring 7 drives the stop block 11 to rotate in the reverse direction, causing the stop block 11 to push the stop frame 9 in the direction of stretching the first spring 5 until the stop frame 9 no longer blocks the guide block 4. In this way, 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 after adding the added guide block 4 and the first spring 5. Moreover, by fixing the stop block 11 with the stop frame 9, the retaining ring 7 can be fixed to prevent the retaining ring 7 from rotating randomly.

[0041] Embodiment 3: On the basis of Embodiment 2, as Figure 6 and Figure 7 shown, there are also two fixing rods 12 symmetrically distributed along the guide ring 3. The fixing rods 12 are fixedly connected to the adjacent guide ring 3. A locking frame 13 is slidably connected between the adjacent two fixing rods 12 in the left-right direction. 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 in extrusion fit with the adjacent locking frame 13 through the inclined surface. A second tension spring 14 is fixedly connected between the fixing rod 12 and the adjacent guide ring 3.

[0042] When the retaining ring 7 blocks the notch 701, the fixed retaining ring 7 squeezes the locking frame 13, causing the second tension spring 14 to be in a stretched state. At this time, the locking frame 13 catches each guide block 4. In this way, when the main steel bars 101 are horizontally placed between the two guide blocks 4 opposite to each other left and right, the guide blocks 4 are prevented from sliding due to the gravity of the main steel bars 101, thereby avoiding the change of 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 fixing rod 12 towards the side away from the adjacent guide ring 3.

[0043] Embodiment 4: On the basis of Embodiment 3, as Figure 8 and Figure 10As shown in the figure, it further 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 clamping frame 15. The push frame 17 is in extrusion fit with the clamping frame 15 on the same side. A second spring 18 is fixedly connected between the convex block 402 and the adjacent push frame 17.

[0044] When the lock frame 13 clamps each guide block 4, the lock frame 13 squeezes the push frame 17, and the second spring 18 is in a compressed state. When the retaining ring 7 is pushed open so that the lock frame 13 slides along the fixed rod 12 to the side away from the adjacent guide ring 3, the lock frame 13 no longer squeezes the push frame 17, and the second spring 18 gradually resets to drive the push frame 17 to slide towards the side that squeezes the clamping frame 15, causing all the clamping frames 15 to slide inwards. In this way, when multiple steel wire rings 102 are placed inside between a circle of main steel bars 101 from the right side, the steel wire rings 102 do not need to sequentially push open the clamping frames 15, that is, when placing the steel wire rings 102, they are not affected by the clamping frames 15, improving the placing efficiency of the steel wire rings 102, and placing the last steel wire ring 102 between the rightmost clamping frame 15 and the middle clamping frame 15.

[0045] When the retaining ring 7 is pulled back so that the lock frame 13 clamps each guide block 4, the lock frame 13 squeezes the push frame 17 to slide towards the side that loosens the clamping frame 15, causing all the clamping frames 15 to be reset under the action of the third tension spring 16. The clamping frame 15 squeezes the push frame 17 to slide back in the reverse direction. At this time, the last steel wire ring 102 is fixedly limited between the rightmost clamping frame 15 and the middle clamping frame 15.

[0046] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the gist 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); It also includes a baffle (9) corresponding to the guide ring (3), the baffle (9) being slidably connected to a side of the corresponding guide ring (3) close to the notch (701), the baffle (9) being used to block the added guide block (4), a first tension spring (10) being fixedly connected between the baffle (9) and the corresponding guide ring (3), a baffle block (11) being fixedly connected to a side of the baffle ring (7) close to the adjacent baffle frame (9), the baffle block (11) being engaged with the adjacent baffle frame (9); A side of the retaining frame (9) close to the adjacent annular slide groove (702) is provided with a wedge-shaped surface, and the added guide block (4) is extruded and matched with the wedge-shaped surface of the retaining frame (9); 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).

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: 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).

4. A steel cage fixing welding device for civil construction as claimed in claim 3, 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.

5. A steel cage fixing welding device for civil construction as claimed in claim 4, 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).

6. A steel cage fixing welding device for civil construction as claimed in claim 5, 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).

7. A steel cage fixing welding device for civil construction as claimed in claim 6, 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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