Metal framework welding tool for building construction

Abstract

The invention discloses a metal framework welding tool for building construction, and belongs to the technical field of welding tools. The metal framework welding tool comprises frame bodies, the frame bodies are arranged in pairs and wrap a column body, the frame bodies are detachable, and roller sets are arranged in the frame bodies; the frame body can vertically move relative to the column body through the roller group; the bearing part is used for bearing the cross beam and rotates relative to the frame body by means of the gravity of the cross beam; the fastening part is rotationally arranged on the frame body through a rotating shaft and coaxially rotates with the bearing part, and an elastic piece is arranged between the fastening part and the bearing part; the clamping part comprises a pneumatic structure and a clamping structure, and the pneumatic structure is installed between the bearing part and the fastening part; the clamping structure is mounted on the bearing part and is used for positioning the cross beam on the bearing part; through dynamic positioning adjustment, the clamping force is dynamically adjusted and continuous traction force is generated according to the gravity of the cross beam, the welding precision is effectively guaranteed, the welding quality is optimized, internal stress is reduced, and the overall stability of the frame is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of welding tooling, and particularly to a metal framework welding tooling for building construction. Background Art

[0002] In the field of building construction, metal framework structures are widely used in various large-scale construction projects such as high-rise buildings, industrial plants, and large bridges due to their high strength, light weight, and good plasticity. A metal framework structure usually consists of columns and beam frameworks. The columns serve as vertical support members, and the beam frameworks are horizontally or obliquely connected between the columns to form a stable framework structure. During the construction process, how to efficiently and accurately assemble the beam frameworks with the columns is a key link to ensure the overall quality and safety of the metal framework structure.

[0003] Common connection methods include bolt connection assembly and welding connection; bolt connection assembly has high requirements for manufacturing precision: holes need to be drilled on the plate parts and accurately aligned, which increases the manufacturing workload, and poor hole-making precision is likely to lead to mismatches between the bolt diameter and the hole diameter; it is prone to loosening: under the action of vibration loads, the bolts may become loose, and corrosion is likely to occur at the gaps, resulting in connection failure; cross-section weakening: drilling holes will weaken the cross-section of the component, and auxiliary connecting plates need to be added, increasing the structural complexity and steel consumption. Compared with bolt connection assembly, welding connection has superior structural performance: the welding joint has high strength, can reach the same strength as the base material or even higher, has a large connection stiffness, and good sealing performance.

[0004] During the construction of building projects with a long service time, cross beams are welded to the vertical columns to improve the structural strength of the metal framework;

[0005] In the existing welding process, the usual method is to support the cross beam by pre-fastening the support members and keep the welding points fully exposed; since the support device is fastened to the vertical column, that is to say, the positioning means of the support device mainly relies on the vertical support column; this will lead to errors in the fitting state between the cross beam and the vertical support column when there is deflection in the support column or height difference in the embedding, and it is difficult to adjust; furthermore, when the welding is completed, it is easy to generate large internal stresses between the cross beam and the vertical support column and cause the framework to bend and deform; on the one hand, it affects the laying of the facade, and on the other hand, it also affects the structural strength of the metal framework. Summary of the Invention

[0006] The technical solution of the present invention is to provide a metal framework welding tooling for building construction, which can effectively ensure the welding precision, optimize the welding quality, reduce internal stresses, and enhance the overall stability of the framework by means of dynamic positioning adjustment, dynamically adjusting the clamping force according to the gravity of the cross beam, and generating a continuous pulling force.

[0007] To achieve the above object, the present invention provides the following technical solutions: A metal skeleton welding tooling for building construction, including a frame body. The frame bodies are arranged in pairs and wrapped around the column body. The frame bodies are detachable from each other and are internally provided with a roller group; the frame bodies can move vertically relative to the column body through the roller group;

[0008] A bearing part is rotatably arranged on the frame body through a rotating shaft, used for bearing a cross beam, and rotates relative to the frame body by means of the gravity of the cross beam;

[0009] A fastening part is rotatably arranged on the frame body through a rotating shaft, rotates coaxially with the bearing part, and an elastic member is arranged between the fastening part and the bearing part; In the initial stage, the fastening part rotates synchronously with the bearing part through the elastic member, so that the fasteners located on both sides of the column body abut against the column body to realize the positioning of the frame body;

[0010] A clamping part includes a pneumatic structure and a clamping structure. The pneumatic structure is installed between the bearing part and the fastening part; The clamping structure is installed on the bearing part and is used for positioning the cross beam on the bearing part;

[0011] After the frame body is positioned, the bearing part rotates relative to the fastening part by compressing the elastic member, and the pneumatic structure triggers the clamping structure to clamp the cross beam, and the clamping force is proportional to the deflection angle of the bearing part relative to the fastening part.

[0012] As a further scheme of the present invention, the bearing part includes:

[0013] Connecting rods, each frame body is rotatably provided with a connecting rod through a rotating shaft, and the connecting rods are rotatably arranged coaxially with the fastening part;

[0014] A bearing plate, the connecting rods are jointly rotatably provided with a bearing plate, and the bearing plate is used for bearing the cross beam;

[0015] The connecting rod can compress the elastic member and rotate relative to the fastening part. When the connecting rod rotates relative to the fastening part, the free end of the connecting rod inclines downward. After the clamping structure clamps the cross beam, the gravity of the cross beam is used to drive the connecting rod to keep rotating, so as to generate a tensile force between the column body and the cross beam.

[0016] As a further scheme of the present invention, the bearing part further includes a balancing member, and the balancing member is installed at the bottom of the bearing plate and is located below the hinge point of the bearing plate and the connecting rod.

[0017] As a further scheme of the present invention, the fastening part includes:

[0018] A bracket, which is rotatably arranged coaxially with the connecting rod, and the elastic member is arranged between the bracket and the connecting rod;

[0019] Fasteners, at least two of them are respectively arranged on both sides of the column body, the fasteners are respectively located on the upper and lower sides of the hinge point of the bracket, and the fasteners are both connected to the bracket.

[0020] As a further solution of the present invention, the clamping structure includes:

[0021] A pair of telescopic members rotatably arranged between the bearing plate and the connecting rod;

[0022] A pair of clamping plates slidably arranged towards each other on the bearing plate and rotatably arranged at the telescopic ends of the telescopic members;

[0023] When the connecting rod rotates relative to the bracket, the pneumatic structure drives the clamping plates to approach each other through the telescopic members to complete the clamping of the cross beam.

[0024] As a further solution of the present invention, the pneumatic structure includes a piston and a sliding sleeve. The piston and the sliding sleeve are slidably arranged and are respectively fixed on the connecting rod and the bracket. The sliding sleeve is communicated with the telescopic member through an air pipe.

[0025] As a further solution of the present invention, each fastener includes:

[0026] A fastening sleeve arranged between the brackets and provided with a connecting member between the fastening sleeve and the brackets. The connecting member is threadedly connected to the bracket. The connecting member is inserted into the fastening sleeve, and a limiting piece for limiting the fastening sleeve is fixedly arranged on the side wall of the connecting member.

[0027] As a further solution of the present invention, a locking ring is coaxially fixed on the connecting rod, a locking piece is coaxially arranged with the locking ring, the adjacent surfaces of the locking ring and the locking piece are rough surfaces, and a fastening bolt is rotatably arranged on the locking piece. The fastening bolt is threadedly connected to the rotating shaft.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. In the present invention, when the support column is skewed or there is a height difference in the embedding, it is very easy to have errors in the fitting state between the cross beam and the vertical support column and it is difficult to adjust, seriously affecting the welding quality; the frames are arranged in pairs and wrapped on the column body, and are detachable between them. A roller group is arranged inside, and the vertical movement relative to the column body can be realized through the roller group, and the assembly can be completed at the bottom of the column body; making the assembly operation more convenient, reducing the difficulty and risk of working at height, and ensuring the safety of construction personnel.

[0030] 2. In the present invention, the greater the deflection angle of the bearing part relative to the fastening part, the greater the clamping force applied to the cross beam. The design of dynamically adjusting the clamping force according to the gravity of the cross beam can not only ensure sufficient clamping force applied to the cross beam to ensure the stability of the cross beam during the welding process, but also effectively avoid slight deformation of the cross beam caused by excessive clamping, thus fundamentally avoiding the existence of prestress in the cross beam after welding, reducing the internal stress of the overall frame, and effectively preventing the frame from bending deformation. In this way, not only the laying effect of the outer facade is ensured, but also the structural strength of the metal skeleton is greatly improved, and the service life of the building is extended.

[0031] 3. In the present invention, when the cross beam is hoisted onto the bearing part, under the action of the gravity of the cross beam, it can deflect relative to the frame body and drive the fastening part to rotate synchronously. After the fasteners on both sides of the fastening part come into contact with the column body, the frame body is relatively fixed. At this time, the fastening part stops rotating, while the bearing part continues to rotate and generates relative deflection with the fastening part, and the elastic part is compressed; a dynamic positioning and adaptive adjustment mechanism is formed, which can be flexibly adjusted according to the actual state of the column body to ensure an ideal fitting state between the cross beam and the column body, laying a solid foundation for subsequent high-quality welding operations.

[0032] 4. In the present invention, after the clamping structure successfully clamps the cross beam, the bearing part is still continuously affected by the gravity of the cross beam and maintains a deflection trend; since the welding tooling frame body and the column body are already relatively fixed, and the cross beam and the clamping structure are also relatively fixed, when there is a slight gap between the column body and the cross beam, the bearing part can continue to rotate, thereby generating a certain pulling force between the column body and the cross beam. This continuous pulling force further enhances the connection stability between the column body and the cross beam, making the entire metal skeleton frame more firm and reliable after welding is completed, effectively improving the overall stability of the frame, and providing a strong guarantee for the safety and durability of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 is a schematic diagram of the usage scenario of the present invention;

[0035] Figure 2 is a partially enlarged structural schematic diagram of the usage scenario of the present invention;

[0036] Figure 3 is a schematic diagram of the overall structure of the present invention;

[0037] Figure 4 Structural schematic diagram of the fastening part of the present invention and its connection relationship

[0038] Figure 5 Exploded structural schematic diagram of the fastening part of the present invention and its connection relationship

[0039] Figure 6 Structural schematic diagram of the frame body of the present invention

[0040] Figure 7 Structural schematic diagram of the cross-section of the connecting rod of the present invention

[0041] In the attached drawings, the components represented by each reference numeral are as follows

[0042] 1. Frame body; 11. Roller group; 12. Rotating shaft; 2. Bearing part; 21. Connecting rod; 22. Bearing plate; 23. Balancing member; 3. Fastening part; 31. Bracket; 32. Fastener; 33. Fastening sleeve; 34. Connecting member; 35. Limiting piece; 4. Pneumatic structure; 41. Piston; 42. Sliding sleeve; 5. Clamping structure; 51. Telescopic member; 52. Clamping plate; 61. Locking ring; 62. Locking piece; 63. Fastening bolt; 7. Elastic member Specific embodiments

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0044] Please refer to Figures 1-7 , the present invention provides a technical solution: a metal skeleton welding tooling for building construction, including a frame body 1. The frame bodies 1 are arranged in pairs and wrapped around the column body. The frame bodies 1 are detachable from each other and internally provided with a roller group 11. The frame body 1 can move vertically relative to the column body through the roller group 11; Refer to Figure 6The frame 1 includes a main body and a connecting part, the main body is arranged on both sides of the column, the connecting part is arranged on one side of the main body, and the end of the main body away from the connecting part is opened to facilitate the frame 1 to cross the installed beam; the connecting part is connected by a quick-release structure so that the frame 1 can be quickly covered on the main body, and the quick-release structure includes but is not limited to bolt connection assembly; the friction between the frame 1 and the main body overcomes the gravity of the welding tool itself to ensure that the welding tool can move vertically on the column; the roller group 11 can drive the frame 1 to the specified position, which means that the frame 1 can be assembled at the bottom of the column. On the one hand, the ground assembly of the frame 1 is convenient to operate, which reduces the difficulty and requirements of assembly; on the other hand, there is no need to carry the welding tool to high altitude operations, which can avoid the unassembled welding tool from falling and injuring passers-by, and can improve the safety of construction workers;

[0045] The bearing part 2 is rotatably arranged on the frame 1 through the rotating shaft 12, and is used to bear the crossbeam, and rotates relative to the frame 1 with the help of the gravity of the crossbeam; when the crossbeam is hoisted onto the bearing part 2, the bearing part 2 deflects relative to the frame 1 under the action of the gravity of the crossbeam;

[0046] The fastening part 3 is rotatably arranged on the frame 1 through the rotating shaft 12, and rotates coaxially with the bearing part 2, and an elastic member 7 is arranged between the fastening part 3 and the bearing part 2; in the initial stage, the fastening part 3 rotates synchronously with the bearing part 2 through the elastic member 7, so that the fastening part 3 rotates, and the fasteners 32 located on both sides of the column abut against the column, so as to realize the positioning of the frame 1;

[0047] The clamping part includes a pneumatic structure 4 and a clamping structure 5. The pneumatic structure 4 is installed between the load-bearing part 2 and the fastening part 3. The clamping structure 5 is installed on the load-bearing part 2 to position the crossbeam on the load-bearing part 2.

[0048] After the frame 1 is positioned, the bearing part 2 rotates relative to the fastening part 3 by compressing the elastic member 7, so that the pneumatic structure 4 triggers the clamping structure 5 to clamp the beam. The clamping force is proportional to the deflection angle of the bearing part 2 relative to the fastening part 3, that is, proportional to the gravity of the beam. The heavier the beam, the greater the clamping force applied to the beam. The clamping force can be dynamically adjusted according to the gravity of the beam, which can ensure the clamping force applied to the beam and avoid slight deformation of the beam caused by excessive clamping, resulting in prestress in the beam after welding, affecting the overall strength of the frame.

[0049] Specifically, after the column construction is completed, the frame 1 is installed on the ground, i.e., at the bottom of the column. The frame 1 is installed on the column where the cross beam needs to be welded through a quick-release structure, which is not only convenient for operation but also improves the safety factor of the construction site. After the frame 1 is installed, the roller group 11 drives the frame 1 to rise along the column. When the frame 1 rises to the specified height, the cross beam is lifted by a hoisting device, and both ends of the cross beam are placed on the bearing part 2 in the corresponding welding tooling. Under the action of the gravity of the cross beam, the bearing part 2 rotates axially around the rotating shaft 12. The bearing part 2 drives the fastening part 3 to rotate synchronously through the elastic part 7, so that the fasteners 32 on both sides clamp the column from both sides of the column, increasing the fastening degree between the frame 1 and the column and fixing the frame 1 relative to the column.

[0050] After the fasteners 32 on both sides of the fastening part 3 come into contact with the column and the frame 1 is relatively fixed, the fasteners 32 are subjected to resistance, causing the fastening part 3 to stop rotating, while the bearing part 2 continues to rotate and generates a relative deflection with the fastening part 3, and the elastic part 7 is compressed. On the one hand, it can gradually increase the fastening degree between the frame 1 and the column, enabling the clamping force between the frame 1 and the column to be dynamically adjusted according to the gravity of the cross beam. It can not only ensure the clamping force applied to the column to prevent the welding tooling from falling but also avoid excessive clamping.

[0051] On the other hand, the bearing part 2 rotates relative to the fastening part 3 by compressing the elastic part 7, triggering the clamping structure 5 to clamp the cross beam. The clamping force is proportional to the deflection angle of the bearing part 2 relative to the fastening part 3, that is, proportional to the gravity of the cross beam. The heavier the cross beam, the greater the clamping force applied to the cross beam. It can dynamically adjust the clamping force according to the gravity of the cross beam, which can not only ensure the clamping force applied to the cross beam but also avoid excessive clamping causing slight deformation of the cross beam, resulting in prestress in the cross beam after welding and affecting the overall strength of the frame.

[0052] After the clamping structure 5 clamps the cross beam, the bearing part 2 is still affected by the gravity of the cross beam, keeping the deflection trend. The welding tooling frame 1 is relatively fixed to the column, and the cross beam is relatively fixed to the clamping structure 5. When there is a slight gap between the column and the cross beam, the bearing part 2 can continue to rotate, generating a certain pulling force between the column and the cross beam.

[0053] In summary, in the present invention:

[0054] When the support column is skewed or there is a height difference in its embedding, it is extremely easy to have errors in the fitting state between the cross beam and the vertical support column and it is difficult to adjust, seriously affecting the welding quality. The frames 1 are arranged in pairs and wrapped around the column, are detachable from each other, and are internally provided with a roller group 11. Through the roller group 11, vertical movement relative to the column can be realized, and assembly can be completed at the bottom of the column, making the assembly operation more convenient, reducing the difficulty and risk of working at heights, and ensuring the safety of construction workers.

[0055] The greater the deflection angle of the bearing part 2 relative to the fastening part 3, the greater the clamping force applied to the cross beam. The design of dynamically adjusting the clamping force according to the gravity of the cross beam can not only ensure sufficient clamping force applied to the cross beam to ensure the stability of the cross beam during the welding process, but also effectively avoid slight deformation of the cross beam caused by excessive clamping, thus fundamentally avoiding the existence of prestress in the cross beam after welding is completed, reducing the internal stress of the overall frame, and effectively preventing the frame from bending deformation. In this way, not only the laying effect of the outer facade is ensured, but also the structural strength of the metal skeleton is greatly improved, and the service life of the building is extended.

[0056] When the cross beam is hoisted onto the bearing part 2, it can deflect relative to the frame body 1 under the action of the gravity of the cross beam and drive the fastening part 3 to rotate synchronously. After the fasteners 32 on both sides of the fastening part 3 come into contact with the column body, the frame body 1 is relatively fixed. At this time, the fastening part 3 stops rotating, while the bearing part 2 continues to rotate and generates relative deflection with the fastening part 3, and the elastic member 7 is compressed; a dynamic positioning and adaptive adjustment mechanism is formed, which can be flexibly adjusted according to the actual state of the column body to ensure an ideal fitting state between the cross beam and the column body, laying a solid foundation for subsequent high-quality welding operations.

[0057] After the clamping structure 5 successfully clamps the cross beam, the bearing part 2 is still continuously affected by the gravity of the cross beam and maintains a deflection trend; since the welding tooling frame body 1 and the column body are relatively fixed, and the cross beam and the clamping structure 5 are also relatively fixed, when there is a slight gap between the column body and the cross beam, the bearing part 2 can continue to rotate, thereby generating a certain pulling force between the column body and the cross beam. This continuous pulling force further enhances the connection stability between the column body and the cross beam, making the entire metal skeleton frame more firm and reliable after welding is completed, effectively improving the overall stability of the frame, and providing a strong guarantee for the safety and durability of the building.

[0058] As a further solution of the present invention, the bearing part 2 includes:

[0059] Link rods 21, each frame body 1 is rotatably provided with a link rod 21 through a rotating shaft 12, and the link rod 21 is rotatably provided coaxially with the fastening part 3;

[0060] A bearing plate 22, the link rods 21 are jointly rotatably provided with a bearing plate 22, and the bearing plate 22 is used to bear the cross beam;

[0061] The link rod 21 can compress the elastic member 7 and rotate relative to the fastening part 3. When the link rod 21 rotates relative to the fastening part 3, the free end of the link rod 21 inclines downward. After the clamping structure 5 clamps the cross beam, the gravity of the cross beam is used to drive the link rod 21 to keep rotating, so as to generate a pulling force between the column body and the cross beam, and the pulling force is proportional to the gravity of the cross beam;

[0062] Specifically, when both ends of the crossbeam are placed on the bearing plate 22, the bearing plate 22 is stressed to drive the connecting rod 21 to rotate around the rotating shaft 12. The connecting rod 21 drives the fastening part 3 to rotate synchronously through the elastic part 7. The fasteners 32 on both sides of the column body of the fastening part 3 abut against the column body to realize the positioning of the frame body 1.

[0063] After the clamping structure 5 clamps the crossbeam, the bearing plate 22 is stressed to keep the connecting rod 21 in a rotating trend. On the one hand, it ensures the connection strength between the frame body 1 and the column body, avoids the relative movement of the frame body 1 with respect to the column body, and affects the installation of the crossbeam. On the other hand, the connecting rod 21 can generate a tensile force between the column body and the crossbeam, reduce the gap between the column body and the crossbeam, and reduce the welding difficulty to cope with the slight inclination or deformation of the column body.

[0064] As a further solution of the present invention, the bearing part 2 further includes a balancing part 23. The balancing part 23 is installed at the bottom of the bearing plate 22 and is located below the hinge point of the bearing plate 22 and the connecting rod 21. When the connecting rod 21 rotates, the balancing part 23 can keep the bearing surface of the bearing plate 22 facing upward under the action of gravity, which is convenient for the crossbeam to be placed on the bearing surface of the bearing plate 22 and facilitates the clamping structure 5 to clamp the crossbeam.

[0065] As a further solution of the present invention, the fastening part 3 includes:

[0066] A bracket 31, which is coaxially rotatably arranged with the connecting rod 21, and the elastic part 7 is arranged between the bracket 31 and the connecting rod 21;

[0067] Fasteners 32, at least two of which are respectively arranged on both sides of the column body, and the fasteners 32 are respectively located on the upper and lower sides of the hinge point of the bracket 31, and the fasteners 32 are all connected to the bracket 31;

[0068] Specifically, in the initial stage, when the connecting rod 21 rotates, the bracket 31 rotates synchronously with the connecting rod 21 under the action of the elastic part 7, and the bracket 31 drives the fasteners 32 on both sides of the column body to approach and abut against the column body, so as to fix the frame body 1 on the column body.

[0069] As a further solution of the present invention, the clamping structure 5 includes:

[0070] A pair of telescopic parts 51, which are rotatably arranged between the bearing plate 22 and the connecting rod 21;

[0071] A pair of clamping plates 52, which are slidably arranged towards each other on the bearing plate 22 and are rotatably arranged with the telescopic ends of the telescopic parts 51;

[0072] When the connecting rod 21 rotates relative to the bracket 31, the pneumatic structure 4 drives the clamping plates 52 to approach each other through the telescopic parts 51 to complete the clamping of the crossbeam;

[0073] Specifically, when the connecting rod 21 rotates relative to the bracket 31, the movable end of the telescopic member 51 extends and drives the clamping plate 52 to approach the cross beam until the clamping plate 52 fixes the cross beam on the bearing plate 22, completing the relative fixation between the cross beam and the bearing plate 22, so that the cross beam can increase the tensile force between the column body and the cross beam by pressing down the bearing plate 22.

[0074] As a further solution of the present invention, the pneumatic structure 4 includes a piston 41 and a sliding sleeve 42. The piston 41 and the sliding sleeve 42 are slidably arranged and are respectively fixed on the connecting rod 21 and the bracket 31. The sliding sleeve 42 is communicated with the telescopic member 51 through an air pipe.

[0075] Specifically, when the connecting rod 21 rotates relative to the bracket 31, the piston 41 moves into the sliding sleeve 42, and the closed space formed between the sliding sleeve 42 and the piston 41 gradually decreases. The gas in the closed space enters the telescopic member 51 through the air pipe, causing the telescopic end of the telescopic member 51 to extend, thereby realizing the clamping of the cross beam. After the cross beam is clamped, the gas in the closed space cannot continue to enter the telescopic member 51 and is compressed. The compressed gas exerts a reverse force on the piston 41, increasing the rotational tendency of the bracket 31 fixed thereto and further increasing the fastening strength between the frame body 1 and the column body (in this process, the connecting rod 21 pulls the bracket 31 through the elastic member 7, and the compressed gas generates a thrust on the bracket 31 through the piston 41).

[0076] As a further solution of the present invention, each fastener 32 includes:

[0077] A fastening sleeve 33 is arranged between the brackets 31, and a connecting member 34 is arranged between the fastening sleeve 33 and the bracket 31. The connecting member 34 is threadedly connected to the bracket 31, and the connecting member 34 is inserted into the fastening sleeve 33. A limiting piece 35 for limiting the fastening sleeve 33 is fixedly arranged on the side wall of the connecting member 34.

[0078] Specifically, the connecting member 34 is inserted into the fastening sleeve 33 from both sides, and the fastening sleeve 33 is limited by the limiting piece 35, which facilitates the assembly of the fastener 32 when assembling the welding tooling. Moreover, the fastener 32 can adjust the length of the fastener 32 according to the depth of the connecting member 34 inserted into the fastening sleeve 33, and the fastener 32 can fasten the frame body 1 to columns of different sizes.

[0079] As a further solution of the present invention, a locking ring 61 is coaxially fixed on the connecting rod 21, and a locking piece 62 is coaxially arranged with the locking ring 61. The adjacent surfaces of the locking ring 61 and the locking piece 62 are rough surfaces. A fastening bolt 63 is rotatably arranged on the locking piece 62, and the fastening bolt 63 is threadedly connected to the rotating shaft 12; rotating the fastening bolt 63 can adjust the normal pressure between the locking piece 62 and the locking ring 61.

Claims

1. A metal framework welding tooling for building construction, including a frame body (1), characterized in that: The frame bodies (1) are arranged in pairs and wrapped around the column body. The frame bodies (1) are detachable from each other and are internally provided with a roller group (11). The frame bodies (1) can move vertically relative to the column body through the roller group (11). The bearing part (2) is rotatably arranged on the frame body (1) through a rotating shaft (12) and is used to bear the cross beam and rotate relative to the frame body (1) by virtue of the gravity of the cross beam. The fastening part (3) is rotatably arranged on the frame body (1) through a rotating shaft (12), rotates coaxially with the bearing part (2), and an elastic part (7) is arranged between the fastening part (3) and the bearing part (2). In the initial stage, the fastening part (3) rotates synchronously with the bearing part (2) through the elastic part (7), so that the fasteners (32) located on both sides of the column body abut against the column body to realize the positioning of the frame body (1). The clamping part includes a pneumatic structure (4) and a clamping structure (5). The pneumatic structure (4) is installed between the bearing part (2) and the fastening part (3). The clamping structure (5) is installed on the bearing part (2) and is used to position the cross beam on the bearing part (2). After the frame body (1) is positioned, the bearing part (2) rotates relative to the fastening part (3) by compressing the elastic part (7), and the pneumatic structure (4) triggers the clamping structure (5) to clamp the cross beam. The clamping force is proportional to the deflection angle of the bearing part (2) relative to the fastening part (3).

2. The metal framework welding tooling for building construction according to claim 1, characterized in that: The bearing part (2) includes: Link rods (21). Each frame body (1) is rotatably provided with link rods (21) through a rotating shaft (12), and the link rods (21) are rotatably arranged coaxially with the fastening part (3). A bearing plate (22). The link rods (21) jointly rotate to be provided with a bearing plate (22), and the bearing plate (22) is used to bear the cross beam. The link rods (21) can rotate relative to the fastening part (3) by compressing the elastic part (7). When the link rods (21) rotate relative to the fastening part (3), the free ends of the link rods (21) incline downward. After the clamping structure (5) clamps the cross beam, the gravity of the cross beam is used to drive the link rods (21) to keep rotating, so as to generate a tensile force between the column body and the cross beam.

3. The metal framework welding tooling for building construction according to claim 2, characterized in that: The bearing part (2) further includes a balancing member (23). The balancing member (23) is installed at the bottom of the bearing plate (22), and the balancing member (23) is located below the hinge point of the bearing plate (22) and the link rods (21).

4. A metal skeleton welding tooling for building construction according to claim 1, characterized in that: The fastening part (3) includes: A bracket (31) which is rotatably arranged coaxially with the link rod (21), and the elastic part (7) is arranged between the bracket (31) and the link rod (21). Fasteners (32). There are at least two fasteners (32) which are respectively arranged on both sides of the column body. The fasteners (32) are respectively located on the upper and lower sides of the hinge point of the bracket (31), and the fasteners (32) are both connected to the bracket (31).

5. A metal skeleton welding tooling for building construction according to claim 1, characterized in that: The clamping structure (5) includes: Pairs of telescopic members (51) which are rotatably arranged between the bearing plate (22) and the link rods (21). Pairs of clamping plates (52) which are slidably arranged towards each other on the bearing plate (22) and are rotatably arranged with the telescopic ends of the telescopic members (51). When the link rods (21) rotate relative to the bracket (31), the pneumatic structure (4) drives the clamping plates (52) to approach each other through the telescopic members (51) to complete the clamping of the cross beam.

6. The metal framework welding tooling for building construction according to claim 5, characterized in that: The pneumatic structure (4) includes a piston (41) and a sliding sleeve (42). The piston (41) and the sliding sleeve (42) are slidably arranged and are respectively fixed on a connecting rod (21) and a bracket (31). The sliding sleeve (42) is communicated with a telescopic member (51) through an air pipe.

7. A metal skeleton welding tooling for building construction according to claim 4, characterized in that: Each of the fasteners (32) includes: A fastening sleeve (33) is arranged between the brackets (31), and a connecting member (34) is arranged between the fastening sleeve (33) and the brackets (31). The connecting member (34) is threadedly connected to the brackets (31), the connecting member (34) is inserted into the fastening sleeve (33), and a limiting piece (35) for limiting the fastening sleeve (33) is fixedly arranged on the side wall of the connecting member (34).

8. The metal framework welding tooling for building construction according to claim 2, characterized in that: A locking ring (61) is coaxially fixed on the connecting rod (21). A locking piece (62) is coaxially arranged with the locking ring (61). The adjacent surfaces of the locking ring (61) and the locking piece (62) are rough surfaces. A fastening bolt (63) is rotatably arranged on the locking piece (62), and the fastening bolt (63) is threadedly connected to a rotating shaft (12).

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