Modularized grid column forming steel reinforcement framework formed through welding and assembling method of modularized grid column forming steel reinforcement framework

Abstract

The invention provides a welding-formed modular grid column forming reinforcement cage and an assembly method thereof, and relates to the field of reinforcement cages. According to the welding-formed modular grid column forming steel reinforcement framework and the assembling method thereof, the welding-formed modular grid column forming steel reinforcement framework comprises four corner ribs and a bottom plate, the distances between the four corner ribs are equal, a square is formed between the four corner ribs, and a plurality of side ribs are arranged between every two adjacent corner ribs. In the invention, during use, corner ribs, side ribs and stirrups can be fixedly supported, so that the position relationship among the corner ribs, the side ribs and the stirrups is preliminarily determined, and the corner ribs, the side ribs and the stirrups are fixed by adopting an automatic welding mode, so that the connection strength among the corner ribs, the side ribs and the stirrups is enhanced; and the first sleeve and the second sleeve can also quickly connect and fix two assembled column forming reinforcement cages, so that the problems that the operation efficiency is low, the labor intensity is high, the forming precision is poor, the construction cost is high, and the assembling quality is difficult to guarantee when the reinforcement cages are manually bound are solved.

Description

Technical Field

[0001] The present invention relates to the field of steel bar skeletons, and in particular to a welded modular grid column-shaped steel bar skeleton and an assembly method thereof. Background Art

[0002] In recent years, as the construction technology of the construction industry has gradually shifted towards industrialization and refinement, prefabricated building technology has been widely used in the design and construction process of construction projects. Prefabricated formed steel frame technology is a type of prefabricated building technology. It refers to a steel engineering construction technology that uses professional production and processing in the factory to combine stirrups and longitudinal steel bars through binding, welding and mechanical connection to form a stress-bearing steel frame, which is then transported to the construction site for assembly.

[0003] After searching, it was found that in the assembly forming process of prefabricated steel frame, the column steel frame is the main load-bearing component, and its forming quality directly affects the structural safety and durability. The stirrup forming and frame forming of traditional column steel frame are both done by manual binding, which has low operation efficiency, high labor intensity, poor forming accuracy, high construction cost, and it is difficult to guarantee the assembly quality.

[0004] Therefore, those skilled in the art provide a welded modular grid column forming steel bar skeleton and an assembly method thereof to solve the problems raised in the above background technology. Summary of the Invention

[0005] 1. Technical problems solved In response to the shortcomings of the existing technology, the present invention provides a welded modular grid column forming steel frame and its assembly method, which solves the problems of low efficiency, high labor intensity, poor forming accuracy, high construction cost and difficult to ensure assembly quality when manually tying steel frame.

[0006] 2. Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: The hinged plate is fixedly provided with a hook at its top and a hook at its bottom, and the hook at its bottom is fixed with a hook at its bottom, and the hook at its top is fixed with a hook at its bottom. Through the above technical solution, the device can fix and support the corner bars, side bars and stirrups when in use, so as to preliminarily determine the positional relationship between the corner bars, side bars and stirrups, and use automated welding to fix the three, thereby strengthening the connection strength between the three, and the first sleeve and the second sleeve can also quickly connect and fix the two assembled column-shaped steel bar skeletons, solving the problems of low efficiency, high labor intensity, poor forming accuracy, high construction cost and difficult to guarantee assembly quality of manual binding of steel bar skeletons.

[0007] Furthermore, an internal fixator is provided on the inner side between the four corner ribs, and an external fixator is provided on the outer side between the four corner ribs. A plurality of fixing blocks are fixedly connected between the internal fixator and the external fixator. The outer side of the internal fixator contacts the corner ribs and the side ribs and is fixedly connected to the corner ribs and the side ribs by welding. The inner side of the external fixator contacts the corner ribs and the side ribs and is fixedly connected to the corner ribs and the side ribs by welding. Through the above technical solution, the corner bars, side bars and stirrups are fixed by welding, which not only solves the problems of low efficiency, high labor intensity, poor forming accuracy, high construction cost and difficult to ensure assembly quality of manual binding of steel bar skeletons, but also strengthens the strength of the connection positions of the three.

[0008] Furthermore, one end of each of the corner ribs and the side ribs is provided with a threaded groove, the outer side of the threaded groove is threadedly connected to a first sleeve, the number of the external fixator and the number of the internal fixator are both two, and the four sides of the external fixator are rotatably connected to a plurality of second sleeves, and the inner side of the second sleeve is provided with a thread; Through the above technical solution, the first sleeve and the second sleeve facilitate the vertical or horizontal assembly of the two column reinforcement skeletons, and the internal fixer and the external fixer can increase the connection strength between the two column reinforcement skeletons when they are horizontally assembled.

[0009] Furthermore, threaded holes are provided inside the fixed turntable and the movable turntable, and the fixed turntable is fixedly connected to the movable turntable by threads and bolts. A plurality of limiting cylinders are fixedly connected to the side of the movable turntable, and the number of the limiting cylinders is equal to the number of the corner ribs plus the side ribs. The fixed side plate and the movable side plate are fixedly connected to motors on the side away from the fixed turntable, and the output shafts of the two motors respectively pass through the fixed side plate and the movable side plate and are fixedly connected to the two fixed turntables; Through the above technical solution, the movable turntable can drive the rotation of the angle bars and side bars, making it convenient for the welding device to perform all-round welding of stirrups, angle bars and side bars. The relationship between the fixed turntable and the movable turntable can facilitate the disassembly of the movable turntable, so that the device can adapt to column steel bar skeletons of different specifications.

[0010] Furthermore, a first slide rail is fixedly connected to the side surface of the vertical plate, a second slide rail is fixedly connected to the outer side of the vertical plate, the length of the second slide rail is smaller than the first slide rail, a first moving block is slidably connected to the outer side of the first slide rail, two first moving blocks are respectively located on both sides of the movable side plate and slidably connected to the movable side plate, the two sides of the movable side plate are fixedly connected to the second moving block, a slide groove adapted for the second slide rail is provided on the outer side of the second moving block, one side of the movable side plate is fixedly connected to the limiting frame, the limiting frame is L-shaped, and a plurality of threaded holes are provided in the interior of the limiting frame and the interior of one of the vertical plates; Through the above technical solution, the movable side panel can be rotated by the first movable block, thereby facilitating the placement of side reinforcements, angle reinforcements and stirrups in the device; the second movable block can limit the movable side panel to prevent it from rotating during use; and the limit frame can fix the position of the side panel to prevent the fixed side panel from moving during use.

[0011] Furthermore, two first electric push rods are fixedly connected to the top of the base plate, and the two first electric push rods are respectively located at the two ends of the bottom of the lifting plate. The output shafts of the first electric push rods are fixedly connected to the lifting plate. The positioning frame is U-shaped, and two second electric push rods are fixedly connected between the bottom inner wall of the positioning frame and the bottom of the lifting plate. The bottom of the lifting plate is fixedly connected to a third electric push rod, and the output shaft of the third electric push rod is fixedly connected to the moving rod. Through the above technical solution, the first electric push rod can lift the lifting plate so that the clamping plate can adapt to column steel bar skeletons of different height specifications. The second electric push rod can move the positioning frame so that the positioning frame contacts the movable plate, thereby fixing the position of the movable plate. The third electric push rod can move the movable rod.

[0012] Furthermore, the shape of the clamping frame is an inverted L-shape, and anti-slip grooves are provided on the upper and lower sides of the movable plate, the top inner wall of the positioning frame, and the top of the lifting plate. The top of the movable plate is fixedly connected to a third slide rail, and the clamping frame is located on the outside of the third slide rail and is slidably connected to the third slide rail. Through the above technical solution, the third slide rail facilitates the movement of the clamping frame, and the anti-slip groove increases the friction between the movable plate and the lifting plate, and the friction between the movable plate and the positioning frame, thereby preventing the movable plate from moving.

[0013] Furthermore, a first hinge block is fixedly connected to the inner side of the clamping frame, a connecting rod is hingedly connected to the inside of the first hinge block, a second hinge block is slidably connected to the top of the movable plate, the second hinge block is hingedly connected to an end of the connecting rod away from the first hinge block, a clamping plate is fixedly connected to the side of the second hinge block, and a clamping groove is provided at the bottom of the clamping plate to match the moving rod; Through the above technical solution, the second hinge block and the connection can enable the two first hinge blocks 29 to move, so that the clamping frame drives the clamping plate to move, so that the clamping plate clamps the stirrups.

[0014] 3. Beneficial effects The present invention provides a welded modular grid column steel bar skeleton and its assembly method. It has the following beneficial effects: 1. The present invention provides a welded modular grid column forming steel bar skeleton and an assembly method thereof. Through the arrangement of angle bars, side bars, stirrups, threaded grooves, a first sleeve, an internal fixing frame, an external fixing frame, a fixing block, a second sleeve, a movable turntable, a limiting cylinder, a clamping frame and a clamping plate, the device can fix and support the angle bars, side bars and stirrups when in use, thereby preliminarily determining the positional relationship between the angle bars, side bars and stirrups, and fixing the three by automated welding, thereby strengthening the connection strength between the three, and the first sleeve and the second sleeve can also quickly connect and fix two assembled column forming steel bar skeletons, solving the problems of low efficiency, high labor intensity, poor forming accuracy, high construction cost and difficult to ensure assembly quality of manual tying of steel bar skeletons.

[0015] 2. The present invention provides a welded modular grid column forming steel bar skeleton and its assembly method. Through the arrangement of a first electric push rod, a second electric push rod, a third electric push rod, a movable side plate, a fixed turntable, a movable turntable, a movable plate and a positioning frame, the device can adjust according to the number of corner bars, side bars and stirrups when positioning the diagonal bars, side bars and stirrups, so that it can position and support column steel bar skeletons of different specifications, facilitating its automated welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic axial view of the present invention; Figure 2 is an axial schematic diagram of the base plate of the present invention; Figure 3 Schematic diagram of the axial view of the angle bar of the present invention; Figure 4 It is a schematic axial cross-sectional view of the lifting plate of the present invention; Figure 5 is an axial schematic diagram of the external fixator of the present invention; Figure 6 It is a schematic axial cross-sectional view of the movable plate of the present invention; Figure 7 For the present invention Figure 2 A magnified schematic diagram of point A; Figure 8 It is a side view schematic diagram of the movable panel of the present invention.

[0017] Among them, 1. Angle reinforcement; 2. Bottom plate; 3. Hoop reinforcement; 4. Threaded groove; 5. First sleeve; 6. Internal fixing frame; 7. External fixing frame; 8. Fixed block; 9. Second sleeve; 10. Fixed side plate; 11. Movable side plate; 12. Fixed turntable; 13. Movable turntable; 14. Limit cylinder; 15. First moving block; 16. Second moving block; 17. Vertical plate; 18. First slide rail; 19. Second slide rail; 20. Lifting plate; 21. First electric push rod; 22. Positioning frame; 23. Second electric push rod; 24. Third electric push rod; 25. Moving rod; 26. Movable plate; 27. Clamping frame; 28. Third slide rail; 29. ​​First hinge block; 30. Connecting rod; 31. Second hinge block; 32. Clamping plate; 33. Clamping plate; 34. Side reinforcement; 35. Motor; 36. Limit frame. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the specific embodiments of the present invention to clearly and completely describe the technical solutions in the specific embodiments of the present invention. Obviously, the specific embodiments described are only part of the specific embodiments of the present invention, rather than all the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific implementation 1: like Figure 1-6As shown, a specific embodiment of the present invention provides a welded modular grid column forming steel frame and an assembly method thereof, comprising four corner bars 1 and a bottom plate 2, wherein the spacing between the four corner bars 1 is equal, a square is formed between the four corner bars 1, a plurality of side bars 34 are provided between two adjacent corner bars 1, a plurality of stirrups 3 are provided on the outside of the four corner bars 1, the corner bars 1 and the side bars 34 are located on the inner side of the stirrups 3 and in contact with the stirrups 3, the stirrups 3 are fixedly connected to the angle bars 1 and the stirrups 3 by welding, one end of the bottom plate 2 is fixedly connected to a fixed side plate 10, the top of the other end of the bottom plate 2 is provided with a movable side plate 11, both sides of the bottom plate 2 are fixedly connected to a vertical plate 17, a lifting plate 20 is provided on the top of the bottom plate 2, and the lifting plate 20 A positioning frame 22 is provided on one side of the lifting plate 20, a plurality of movable plates 26 are provided on the top of the movable plate 26, a clamping frame 27 is provided on the top of the clamping frame 27, a clamping plate 33 is fixedly connected to the top, an internal fixing frame 6 is provided on the inner side between the four corner ribs 1, an external fixing frame 7 is provided on the outer side between the four corner ribs 1, a plurality of fixing blocks 8 are fixedly connected between the internal fixing frame 6 and the external fixing frame 7, the outer side of the internal fixing frame 6 is in contact with the corner rib 1 and the side rib 34 and is fixedly connected to the corner rib 1 and the side rib 34 by welding, the inner side of the external fixing frame 7 is in contact with the corner rib 1 and the side rib 34 and is fixedly connected to the corner rib 1 and the side rib 34 by welding, one end of the corner rib 1 and the side rib 34 is provided with a thread groove 4, and the outer side of the thread groove 4 is screwed The first sleeve 5 is connected with the thread, the number of the external fixer 7 and the internal fixer 6 are both two, and the four sides of the external fixer 7 are rotatably connected with multiple second sleeves 9. The inner side of the second sleeve 9 is provided with a threaded hole, and the fixed turntable 12 and the movable turntable 13 are provided with threaded holes. The fixed turntable 12 is fixedly connected to the movable turntable 13 by threads and bolts. The side of the movable turntable 13 is fixedly connected with multiple limiting cylinders 14. The number of limiting cylinders 14 is equal to the number of angle ribs 1 plus side ribs 34. The fixed side plate 10 and the movable side plate 11 are fixedly connected to the side away from the fixed turntable 12 with a motor 35. The output shafts of the two motors 35 respectively penetrate the fixed side plate 10 and the movable side plate 11 and are fixedly connected to the two fixed turntables 12 The shape of the clamping frame 27 is an inverted L-shape. Anti-slip grooves are provided on the upper and lower sides of the movable plate 26, the top inner wall of the positioning frame 22 and the top of the lifting plate 20. The top of the movable plate 26 is fixedly connected to the third slide rail 28. The clamping frame 27 is located on the outside of the third slide rail 28 and is slidably connected to the third slide rail 28. The inner side of the clamping frame 27 is fixedly connected to the first hinge block 29. The inside of the first hinge block 29 is hingedly connected to the connecting rod 30. The top of the movable plate 26 is slidably connected to the second hinge block 31. The second hinge block 31 is hingedly connected to one end of the connecting rod 30 away from the first hinge block 29. The side of the second hinge block 31 is fixedly connected to a card plate 32. The bottom of the card plate 32 is provided with a card slot that matches the moving rod 25.

[0020] In this embodiment, a welded modular grid column forming steel bar skeleton and its assembly method are provided. It should be noted that through the arrangement of the corner bar 1, side bar 34, stirrup 3, threaded groove 4, first sleeve 5, internal fixing frame 6, external fixing frame 7, fixing block 8, second sleeve 9, movable turntable 13, limiting cylinder 14, clamping frame 27 and clamping plate 33, the device can fix and support the corner bar 1, side bar 34 and stirrup 3 when in use, thereby preliminarily determining the positional relationship between the corner bar 1, side bar 34 and stirrup 3, and fix the three by automated welding, thereby strengthening the connection strength between the three, and the first sleeve 5 and the second sleeve 9 can also quickly connect and fix the two assembled column forming steel bar skeletons, solving the problems of low efficiency, high labor intensity, poor forming accuracy, high construction cost and difficult to ensure assembly quality of manual binding of steel bar skeletons.

[0021] Working principle: During use, when it is necessary to splice and fix the corner bars 1, side bars 34 and stirrups 3 to form a column reinforcement skeleton, first place the four corner bars 1 in the limiting cylinders 14 on the side of the fixed turntable 12. When placing, the four corner bars 1 are respectively located at the four corners of the fixed turntable 12. After placement is completed, the side bars 34 are placed so that one end of the side bars 34 is located in the side limiting cylinders 14 of the fixed turntable 12. After placing the corner bars 1 and the side bars 34, the stirrups 3 are placed on the outside of the corner bar 1 from the end of the corner bar 1 away from the movable turntable 13, so that the stirrups 3 are moved on the outside of the corner bar 1. When moving, the position and number of stirrups 3 are determined according to the position and number of the movable plates 26, and then multiple stirrups 3 are located between two adjacent clamping frames 27, and then placed. The inner fixing frame 6 and the outer fixing frame 7 are placed so that the angle reinforcement 1 and the side reinforcement 34 are located between the inner fixing frame 6 and the outer fixing frame 7. After the placement is completed, the movable side plate 11 is moved so that the movable side plate 11 contacts the end of the angle reinforcement 1 away from the fixed side plate 10, thereby contacting the other end of the angle reinforcement 1 and the side reinforcement 34. Then, the limiting cylinder 14 on the side of the movable side plate 11 can support the other end of the angle reinforcement 1 and the side reinforcement 34, thereby completing the limited support of the angle reinforcement 1 and the side reinforcement 34. Then, the first electric push rod 21 is started to raise the lifting plate 20. After the lifting plate 20 is raised, the movable plate 26 raises the clamping frame 27, thereby raising the clamping plate 33 and moving it to the side of the stirrup 3. Then, the third electric push rod 24 is started, and the output of the third electric push rod 24 The shaft moves the moving rod 25, and after the moving rod 25 moves, it drives the clamping plate 32 to move, and then the clamping plate 32 drives the second hinge block 31 to move, and the second hinge block 31 drives the two connecting rods 30 to move, and then the two connecting rods 30 drive the two first hinge blocks 29 to drive the two clamping frames 27 to move, and then the clamping frames 27 move the clamping plates 33 and clamp the bottom outer side of the stirrup 3, so as to determine the position of the stirrup 3. After the stirrup 3 is fixed, the angle bar 1 and the side bar 34 can be welded to the contact position of the stirrup 3 by the external welding device, and the contact position of the inner fixing frame 6 and the outer fixing frame 7 to the angle bar 1 and the side bar 34 can be welded. After a part of the welding, the third electric push rod 24 can be started to return the moving rod 25 to its original position, so that the clamping plate 33 The clamping of the stirrups 3 is cancelled, and then the motor 35 is started. The motor 35 rotates the fixed turntable 12, and after the fixed turntable 12 rotates, the movable turntable 13 rotates. After the movable turntable 13 rotates, the limiting cylinder 14 drives the angle bars 1 and the side bars 34 to rotate, so that the unwelded parts of the angle bars 1 and the side bars 34 are moved in front of the welding device, thereby facilitating the welding of the welding device. After welding is completed, the formed column steel bar skeleton can be removed for use. During use, when two steel bar skeletons need to be spliced, the angle bars 1 and the side bars 34 of the two steel bar skeletons can be threadedly connected by the first sleeve 5 to fix them. When the longitudinal steel bars need to be spliced ​​to the column steel bar skeleton, the longitudinal steel bars can be fixed to the second sleeve 9 to complete the assembly of the longitudinal steel bars. Specific implementation 2: like Figure 4-8 As shown, the specific embodiment of the present invention provides a welded modular grid column forming steel bar skeleton and its assembly method, the sides of the fixed side panel 10 and the movable side panel 11 are rotatably connected to the fixed turntable 12, the side of the fixed turntable 12 is provided with a movable turntable 13, the side of the vertical panel 17 is fixedly connected to the first slide rail 18, the outer side of the vertical panel 17 is fixedly connected to the second slide rail 19, the length of the second slide rail 19 is less than the first slide rail 18, the outer side of the first slide rail 18 is slidably connected to the first moving block 15, the two first moving blocks 15 are respectively located on both sides of the movable side panel 11 and are slidably connected to the movable side panel 11, the two sides of the movable side panel 11 are fixedly connected to the second moving block 16, the outer side of the second moving block 16 is provided with a second sliding The rail 19 is adapted to a slide groove, and one side of the movable side panel 11 is fixedly connected to a limit frame 36. The limit frame 36 is L-shaped, and a plurality of threaded holes are provided inside the limit frame 36 and inside one of the vertical panels 17. The top of the base plate 2 is fixedly connected to two first electric push rods 21, and the two first electric push rods 21 are respectively located at the bottom ends of the lifting plate 20. The output shaft of the first electric push rod 21 is fixedly connected to the lifting plate 20. The positioning frame 22 is U-shaped, and two second electric push rods 23 are fixedly connected between the bottom inner wall of the positioning frame 22 and the bottom of the lifting plate 20. The bottom of the lifting plate 20 is fixedly connected to a third electric push rod 24, and the output shaft of the third electric push rod 24 is fixedly connected to the moving rod 25.

[0023] In this embodiment, a welded modular grid column forming steel bar skeleton and its assembly method are provided. It should be noted that through the arrangement of the first electric push rod 21, the second electric push rod 23, the third electric push rod 24, the movable side plate 11, the fixed turntable 12, the movable turntable 13, the movable plate 26 and the positioning frame 22, the device can be adjusted according to the number of its corner bars 1, side bars 34 and stirrups 3 when positioning the diagonal bars 1, side bars 34 and stirrups 3, so that it can position and support column steel bar skeletons of different specifications, facilitating its automated welding.

[0024] Working principle: During use, when it is necessary to assemble column reinforcement frames of different specifications, the bolts between the fixed turntable 12 and the movable turntable 13 are first disassembled, and then the movable turntable 13 can be removed. After removing the movable turntable 13, the movable turntable 13 with different numbers of limit cylinders 14 fixed on the side is replaced. After the replacement is completed, the second electric push rod 23 can be started, and the second electric push rod 23 makes the positioning frame 22 rise. After the positioning frame 22 rises, the contact with the movable plate 26 is cancelled, thereby canceling the limit of the movable plate 26, and then the movable plate 26 can be removed or a new movable plate 26 can be added to make the number of the movable plate 26 equal to that of the stirrups 3. When placing the movable plate 26, the movable plate 26 is placed in the appropriate position, and then the slot at the bottom of the clamping plate 32 is located on the outside of the moving rod 25. Then, it is only necessary to start the second electric push rod 23 to lower the positioning frame 22. After the positioning frame 22 is lowered, the top inner wall of the positioning frame 22 contacts the movable plate 26, thereby After the movable side plate 11 is moved, the movable side plate 11 is pushed to contact the angle bars 1 of different sizes. After the contact, the limit frame 36 and one of the vertical plates 17 can be screwed together by bolts to limit the position of the movable side plate 11, thereby completing the fixation of column-shaped steel bars of different rules.

[0025] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these specific embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A welded modular grid column steel frame and its assembly method, comprising four corner bars (1) and a base plate (2), characterized in that: The four corner bars (1) are spaced at equal intervals, forming a square between the four corner bars (1), a plurality of side bars (34) are provided between two adjacent corner bars (1), a plurality of stirrups (3) are provided on the outside of the four corner bars (1), the corner bars (1) and the side bars (34) are located on the inside of the stirrups (3) and in contact with the stirrups (3), the stirrups (3) are fixedly connected to the corner bars (1) and the stirrups (3) by welding, one end of the bottom plate (2) is fixedly connected to a fixed side plate (10), the top of the other end of the bottom plate (2) is provided with a movable side plate (11), the fixed side plate (10) is fixedly connected to the bottom plate (2), and the fixed side plate (10) is fixedly connected to the bottom plate (2). The sides of the fixed side plate (10) and the movable side plate (11) are rotatably connected to a fixed turntable (12), and a movable turntable (13) is provided on the side of the fixed turntable (12). Both sides of the bottom plate (2) are fixedly connected to vertical plates (17). The top of the bottom plate (2) is provided with a lifting plate (20), and one side of the lifting plate (20) is provided with a positioning frame (22). The top of the lifting plate (20) is provided with a plurality of movable plates (26), and the top of the movable plate (26) is provided with a clamping frame (27), and the top of the clamping frame (27) is fixedly connected to a clamping plate (33).

2. The welded modular grid column steel bar skeleton and assembly method thereof according to claim 1, characterized in that: An inner fixing frame (6) is provided on the inner side between the four corner ribs (1), and an outer fixing frame (7) is provided on the outer side between the four corner ribs (1). A plurality of fixing blocks (8) are fixedly connected between the inner fixing frame (6) and the outer fixing frame (7). The outer side of the inner fixing frame (6) contacts the corner rib (1) and the side rib (34) and is fixedly connected to the corner rib (1) and the side rib (34) by welding. The inner side of the outer fixing frame (7) contacts the corner rib (1) and the side rib (34) and is fixedly connected to the corner rib (1) and the side rib (34) by welding.

3. The welded modular grid column steel bar skeleton and assembly method thereof according to claim 2, characterized in that: One end of each of the corner ribs (1) and the side ribs (34) is provided with a thread groove (4), the outer side of the thread groove (4) is threadedly connected to a first sleeve (5), the number of the external fixing frame (7) and the number of the internal fixing frame (6) are both two, and the four sides of the external fixing frame (7) are rotatably connected to a plurality of second sleeves (9), and the inner side of the second sleeves (9) is provided with a thread.

4. The welded modular grid column steel bar skeleton and assembly method thereof according to claim 1, characterized in that: The fixed turntable (12) and the movable turntable (13) are both provided with threaded holes inside. The fixed turntable (12) is fixedly connected to the movable turntable (13) by threads and bolts. The side of the movable turntable (13) is fixedly connected with a plurality of limiting cylinders (14). The number of the limiting cylinders (14) is equal to the number of the angle ribs (1) plus the side ribs (34). The fixed side plate (10) and the movable side plate (11) are both fixedly connected with motors (35) on the side away from the fixed turntable (12). The output shafts of the two motors (35) respectively penetrate the fixed side plate (10) and the movable side plate (11) and are fixedly connected to the two fixed turntables (12).

5. The welded modular grid column steel bar skeleton and assembly method thereof according to claim 1, characterized in that: The side of the vertical plate (17) is fixedly connected to a first slide rail (18), the outer side of the vertical plate (17) is fixedly connected to a second slide rail (19), the length of the second slide rail (19) is smaller than the first slide rail (18), the outer side of the first slide rail (18) is slidably connected to a first moving block (15), the two first moving blocks (15) are respectively located on both sides of the movable side plate (11) and are slidably connected to the movable side plate (11), the two sides of the movable side plate (11) are fixedly connected to the second moving blocks (16), the outer side of the second moving block (16) is provided with a slide groove adapted to the second slide rail (19), one side of the movable side plate (11) is fixedly connected to a limiting frame (36), the shape of the limiting frame (36) is L-shaped, and the interior of the limiting frame (36) and the interior of one side of the vertical plate (17) are provided with a plurality of threaded holes.

6. The welded modular grid column steel bar skeleton and assembly method thereof according to claim 1, characterized in that: Two first electric push rods (21) are fixedly connected to the top of the base plate (2), and the two first electric push rods (21) are respectively located at two ends of the bottom of the lifting plate (20). The output shaft of the first electric push rod (21) is fixedly connected to the lifting plate (20). The positioning frame (22) is U-shaped. Two second electric push rods (23) are fixedly connected between the bottom inner wall of the positioning frame (22) and the bottom of the lifting plate (20). The bottom of the lifting plate (20) is fixedly connected to a third electric push rod (24), and the output shaft of the third electric push rod (24) is fixedly connected to a moving rod (25).

7. The welded modular grid column steel bar skeleton and assembly method thereof according to claim 6, characterized in that: The clamping frame (27) is in an inverted L-shape, and anti-slip grooves are provided on the upper and lower sides of the movable plate (26), the top inner wall of the positioning frame (22), and the top of the lifting plate (20). The top of the movable plate (26) is fixedly connected to the third slide rail (28), and the clamping frame (27) is located on the outside of the third slide rail (28) and is slidably connected to the third slide rail (28).

8. The welded modular grid column steel bar skeleton and assembly method thereof according to claim 7, characterized in that: The inner side of the clamping frame (27) is fixedly connected to a first hinge block (29), the interior of the first hinge block (29) is hingedly connected to a connecting rod (30), the top of the movable plate (26) is slidably connected to a second hinge block (31), the second hinge block (31) is hingedly connected to one end of the connecting rod (30) away from the first hinge block (29), the side of the second hinge block (31) is fixedly connected to a clamping plate (32), and the bottom of the clamping plate (32) is provided with a clamping groove adapted to the movable rod (25).

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