A steel structure forming and welding device

Abstract

This invention discloses a steel structure forming and welding device, relating to the field of steel structure welding technology. The steel structure forming and welding device provided by this invention includes a rotating seat structure disposed between two pipe sleeves, and further includes: two welding torches symmetrically disposed on the rotating seat structure, the two welding torches simultaneously welding the joints of the steel pipes from different positions; a rotating ring structure symmetrically disposed on both sides of the rotating seat structure, the rotating ring structure driving the rotating seat structure to rotate; and several telescopic clamping structures arranged in a ring array on the pipe sleeves, the telescopic clamping structures clamping the ends of steel pipes of different diameters and pushing the two steel pipes towards the rotating seat structure, causing the two steel pipes to contact each other. After the two steel pipes are compressed, the telescopic clamping structures stop pushing the steel pipes but continue to maintain clamping.

Description

Technical Field

[0001] This invention relates to the field of steel structure welding technology, and more specifically to a steel structure forming and arranging welding device. Background Technology

[0002] In the manufacturing and installation of steel structures, steel pipes, as an important component, are widely used in construction, bridges, towers, machinery manufacturing, and other fields. The welding quality of steel pipes directly affects the safety and reliability of the entire steel structure. Announcement No. CN219767273U (Publication Date: 2023-09-29) discloses a method that uses a fixed frame and a sliding frame on a welding table, both of which have rotating sleeves inside. A rotating roller inside the sleeve works in conjunction with the rotating sleeve to ensure stable rotation. Two arc-shaped clamps are installed inside the rotating sleeve. A first electric push rod drives the arc-shaped clamps to clamp the steel pipe, fixing it in the middle of the rotating sleeve. A drive motor, gear ring, and drive gear engage to rotate the rotating sleeve, allowing the two steel pipes to be rotated during welding. The technical solution does not take into account the weight and moment of inertia of the steel pipe. This rotation will cause stress concentration at the joint of the steel pipe. Stress concentration will lead to a decrease in the strength of the welded joint, and even cracks or deformation during the welding process. Especially in large steel structures, where the diameter of the steel pipe is large, the stress concentration generated during rotation is particularly obvious, which seriously affects the welding quality and the reliability of the structure. Summary of the Invention

[0003] The purpose of this invention is to provide a steel structure forming and welding device to overcome the above-mentioned shortcomings in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] To achieve the above objectives, the present invention provides the following technical solution: a steel structure forming and welding device, comprising a rotating seat structure disposed between two sleeves, and further comprising:

[0006] Two welding torches are symmetrically arranged on the rotating base structure, and the two welding torches simultaneously weld the joint of the steel pipe from different positions;

[0007] The rotating ring structures are symmetrically arranged on both sides of the rotating base structure, and the rotating ring structures drive the rotating base structure to rotate.

[0008] Several telescopic clamping structures are arranged in a ring array on the pipe sleeve. These telescopic clamping structures clamp the ends of steel pipes of different diameters and push the two steel pipes towards the rotating seat structure, so that the two steel pipes come into contact with each other. After the two steel pipes are squeezed, the telescopic clamping structures stop pushing the steel pipes and continue to hold the steel pipes.

[0009] Preferably, the telescopic clamping structure includes mounting seats fixedly installed in a ring array on the tube sleeve. A double piston rod cylinder is fixedly installed on the mounting seat. Both ends of the piston rod of the double piston rod cylinder are provided with a horizontal sliding structure and a radial sliding structure. The double piston rod cylinder drives the horizontal sliding structure to slide through the piston rod. The sliding horizontal sliding structure pushes the two steel pipes closer to each other and radially compresses the radial sliding structure. The compressed radial sliding structure clamps the steel pipes.

[0010] Preferably, the horizontal sliding structure includes a wedge-shaped seat with two inclined grooves inside. The radial sliding structure includes two slide rods engaged in the grooves. A radial sliding sleeve is fixedly installed on one side of each slide rod. The double piston rod cylinder drives the two wedge-shaped seats to slide through the piston rod. The sliding wedge-shaped seats radially compress the slide rods and radial sliding sleeves through the grooves.

[0011] Preferably, a toothed rod is provided on one side of the radial sliding sleeve, and a second return spring is provided on one side of the toothed rod. The compressed radial sliding sleeve radially compresses the second return spring, and the second return spring radially compresses the toothed rod, causing the toothed rod to move closer to the steel pipe. The toothed rod clamps the steel pipe and, under the push of the piston rod, drives the two steel pipes to move closer to each other.

[0012] Preferably, a swing block is hinged to the side of the toothed rod near the steel pipe, and a stop post is provided on the side of the hinge point near the rotating seat structure. Several swing blocks guide the steel pipe inserted into the sleeve.

[0013] Preferably, one end of the toothed rod is inserted into the interior of the radial sliding sleeve, and the outer sliding sleeve of the radial sliding sleeve is provided with a horizontal sliding sleeve. The horizontal sliding sleeve slides in a limiting groove opened in the side wall of the tube sleeve. A wedge-shaped buckle is provided on the side of the horizontal sliding sleeve away from the rotating seat structure. The side wall of the toothed rod is provided with helical teeth. The wedge-shaped buckle prevents the toothed rod from sliding further away from the steel pipe through the helical teeth, and cooperates with the toothed rod moving towards the steel pipe to perform secondary fixation of the steel pipe.

[0014] Preferably, a T-shaped plate is fixedly connected to one side of the wedge-shaped seat, and a first connecting plate is fixedly connected to one side of the T-shaped plate through the side wall of the sleeve. A second connecting plate is provided on one side of the first connecting plate. The second connecting plate slides in the limiting groove of the sleeve. The first connecting plate is inserted into the inside of the second connecting plate, and a first return spring is provided between the second connecting plate and the first connecting plate. The wedge-shaped buckle is fixedly connected to the second connecting plate. After the wedge-shaped buckle contacts the toothed rod, the wedge-shaped buckle presses the first return spring in the opposite direction through the second connecting plate, causing the first return spring to deform.

[0015] Preferably, the top of the radial sliding sleeve is provided with a groove, one end of the piston rod of the double piston rod cylinder passes through the groove and is fixedly connected to a wedge-shaped seat, and the other end of the piston rod is fixedly connected to a T-shaped plate.

[0016] Preferably, the rotating seat structure includes a ring frame and a support base. The welding torch is installed in the support base. The rotating ring structure includes a connecting ring. A collar is fixedly sleeved on one side of the connecting ring. A blocking ring is fixedly connected to one side of both the connecting ring and the collar. A convex ring is rotatably arranged between the blocking ring, the collar, and the connecting ring. One side of the convex ring is fixedly connected to the pipe sleeve. The steel pipe is fixed inside the pipe sleeve. The blocking ring drives the ring frame to rotate by driving the connecting ring and the collar, so that the two welding torches on the ring frame weld around the joint of the steel pipe.

[0017] Preferably, a toothed ring is provided on the outer sleeve of a connecting ring, and a motor is fixedly installed on the side wall of the sleeve on one side of the toothed ring. A gear is fixedly connected to the shaft of the motor, and the gear meshes with the toothed ring. The motor drives the gear to rotate through the shaft, and the rotating gear (5) drives the connecting ring and the ring frame to rotate through the toothed ring.

[0018] In the above technical solution, the steel structure forming and welding device provided by the present invention has the following beneficial effects:

[0019] 1. The wedge-shaped seat is connected to the toothed rod through its inclined groove. When the wedge-shaped seat slides, its inclined groove will push the toothed rod to slide radially. The clamping force can be automatically adjusted according to the diameter of the steel pipe to ensure that the steel pipe is stably fixed during the welding process, effectively avoiding welding defects caused by the shaking of the steel pipe during welding, and significantly improving welding quality and efficiency.

[0020] 2. By driving the gear and gear ring of the motor to rotate the rotating ring structure and the rotating seat structure, the two welding guns can weld the steel pipe joint synchronously and evenly. This design avoids the stress concentration problem that may be caused by the rotation of the steel pipe itself, ensures the strength and reliability of the welded joint, and at the same time reduces welding deformation and improves the appearance quality of the weld.

[0021] 3. The wedge-shaped seat is pushed horizontally by the double piston rod cylinder, which in turn drives the rack to slide towards the rotating seat structure, so that the two steel pipes automatically approach and make close contact. This process not only improves the preparation efficiency before welding and reduces manual operation steps and time, but also prevents the steel pipe from deforming due to excessive extrusion through the design, ensuring the optimization of the initial welding conditions and further improving the welding quality.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0023] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0026] Figure 2 This is an exploded view of the overall structure provided in an embodiment of the present invention;

[0027] Figure 3 This is a partial structural cross-sectional view of the overall structure provided in an embodiment of the present invention;

[0028] Figure 4 This is an enlarged schematic diagram of the structure at point A provided in an embodiment of the present invention;

[0029] Figure 5 This is a schematic cross-sectional view of the structure during operation, provided as an embodiment of the present invention.

[0030] Figure 6 This is a schematic diagram of the overall telescopic clamping structure provided in an embodiment of the present invention;

[0031] Figure 7 This is an exploded view of the telescopic clamping structure provided in an embodiment of the present invention;

[0032] Figure 8 A schematic diagram of a horizontal sliding structure provided in an embodiment of the present invention;

[0033] Figure 9 A schematic diagram of the radial sliding structure provided in an embodiment of the present invention;

[0034] Figure 10 This is one of the cross-sectional schematic diagrams showing the working state of the telescopic clamping structure provided in the embodiment of the present invention;

[0035] Figure 11 This is the second cross-sectional view of the telescopic clamping structure in its working state provided in the embodiment of the present invention;

[0036] Figure 12 This is an enlarged schematic diagram of the structure at point B provided in an embodiment of the present invention;

[0037] Figure 13 This is the third cross-sectional view of the telescopic clamping structure in its working state provided in the embodiment of the present invention;

[0038] Figure 14 This is an enlarged schematic diagram of the structure at point C provided in an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Telescopic clamping structure; 11. Double piston rod cylinder; 12. Mounting base; 13. Horizontal sliding structure; 131. Wedge-shaped seat; 132. T-shaped plate; 133. First connecting plate; 134. Second connecting plate; 135. Wedge-shaped buckle; 136. First return spring; 14. Radial sliding structure; 141. Radial sliding sleeve; 142. Sliding rod; 143. Horizontal sliding sleeve; 144. Toothed rod; 145. Swing block; 146. Second return spring;

[0041] 2. Rotary ring structure; 21. Connecting ring; 22. Collar ring; 23. Protruding ring; 24. Plug ring;

[0042] 3. Rotating seat structure; 31. Ring frame; 32. Support seat;

[0043] 4. Gear ring; 5. Gear; 6. Motor; 7. Pipe sleeve; 8. Welding torch. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0045] Please see Figure 1-14 This invention provides a steel structure forming and welding device, including a rotating seat structure 3 disposed between two pipe sleeves 7. The end of the steel pipe passes through the pipe sleeves 7 to the bottom of the rotating seat structure 3. The pipe sleeves 7 are used to fix steel pipes of different diameters and are designed with an adjustable clamping device inside to accommodate steel pipes of various diameters. This design allows the device to be widely used for welding steel pipes of different specifications, improving the versatility and flexibility of the device. The rotating seat structure 3 is located between the two pipe sleeves 7, providing a stable support platform for the welding operation. The device also includes:

[0046] Two welding torches 8 are symmetrically arranged on the rotating base structure 3. The two welding torches 8 perform synchronous welding on the joint of the steel pipe from different positions. The symmetrical arrangement of the welding torches 8 on the rotating base structure 3 allows the welding torches 8 to rotate around the joint of the steel pipe while the steel pipe itself remains stationary. The rotation of the welding torches 8 makes the welding process more uniform and avoids the displacement or deformation that may occur due to the rotation of the steel pipe itself, thus improving the welding quality and stability. At the same time, the synchronous welding design of the two welding torches 8 further improves the welding efficiency.

[0047] The rotating ring structure 2 is symmetrically arranged on both sides of the rotating seat structure 3. The rotating ring structure 2 drives the rotating seat structure 3 to rotate. This design allows the welding torch 8 to perform all-round welding operations around the connection of the steel pipe during the welding process, while the steel pipe itself remains stationary. This design of the welding torch rotating while the steel pipe remains stationary not only improves the flexibility and uniformity of welding, but also avoids the stress concentration problem that may occur when the steel pipe rotates during the welding process, further improving the welding quality.

[0048] Several telescopic clamping structures 1 are arranged in a ring array on the sleeve 7. These telescopic clamping structures 1 clamp the ends of two steel pipes and push them towards the rotating seat structure 3, causing the two steel pipes to come into contact with each other. After the two steel pipes are squeezed together, the telescopic clamping structures 1 stop pushing the steel pipes but continue to clamp them. The telescopic clamping structures 1 are arranged in a ring array on the sleeve 7. Their function is to clamp the ends of two steel pipes and automatically push them towards the rotating seat structure 3 through telescopic movement, causing the two steel pipes to come into contact with each other and squeeze together. This automatic approach design not only improves the efficiency of pre-welding preparation but also ensures that the steel pipes can fit tightly together before welding, providing good initial conditions for welding. When the steel pipes are squeezed together, the telescopic clamping structures 1 stop pushing but continue to clamp the steel pipes to prevent displacement during welding and ensure the stability of the welding.

[0049] In the embodiments of the present invention, please refer to Figure 6-8 The telescopic clamping structure 1 includes mounting seats 12 fixedly installed in a ring array on the outer wall of the sleeve 7. This ring array installation method can ensure that the clamping structure is evenly distributed around the sleeve 7, thereby uniformly clamping and pushing the steel pipe, improving the stability and reliability of the device. A double piston rod cylinder 11 is fixedly installed on the side wall of the mounting seat 12 away from the sleeve 7. The double piston rod cylinder 11 is a widely used device in the field. Its specific structure and working principle are existing technologies in the field and will not be described in detail here. As a power source, the double piston rod cylinder 11 can provide stable thrust and pull to drive subsequent actions and realize the clamping and pushing functions of the steel pipe. Both ends of the piston rod of the double piston rod cylinder 11 are provided with a horizontal sliding structure 13 and a radial sliding structure 14, so that the thrust of the cylinder can be transmitted to two different structures through the piston rod, realizing the horizontal pushing and radial clamping functions of the steel pipe respectively, improving the multifunctionality and integration of the device.

[0050] The horizontal sliding structure 13 is positioned on the side of the radial sliding structure 14 away from the rotating seat structure 3. This arrangement allows the horizontal sliding structure 13 to directly act on the steel pipe, pushing it closer to the rotating seat structure 3. The radial sliding structure 14 provides radial clamping force during this approach, ensuring the stability and accurate positioning of the steel pipe. The double piston rod cylinder 11 drives the horizontal sliding structure 13 to slide via its piston rod. This sliding action pushes the steel pipe from its initial position to the welding position, ensuring close contact between the ends of the two steel pipes and creating favorable conditions for subsequent welding operations. Structure 13 pushes the two steel pipes closer together. Through this pushing action, the two steel pipes can fit tightly together before welding, ensuring the contact area and welding quality during welding. It also radially compresses the radial sliding structure 14, which clamps the steel pipe. After being compressed by the horizontal sliding structure 13, the radial sliding structure 14 generates a stable clamping force through its internal mechanical structure, firmly clamping the steel pipe in the sleeve 7. This clamping method can not only adapt to steel pipes of different diameters, but also maintain the stability and accurate positioning of the steel pipe during welding, ensuring welding quality.

[0051] In the embodiments of the present invention, please refer to Figure 8 The horizontal sliding structure 13 includes a wedge-shaped seat 131 with two inclined grooves inside. The grooves are positioned such that one end near the rotating seat structure 3 is away from the steel pipe, and the other end is near the steel pipe. This inclined design allows the wedge-shaped seat 131 to exert a radial compression effect on the radial sliding structure 14 through the grooves during horizontal sliding, thereby achieving the clamping and pushing function of the steel pipe. The radial sliding structure 14 includes two sliding rods 142 engaged in the grooves. Radial sleeves 141 are fixedly installed on the side of the two sliding rods 142 near the axis of the steel pipe. This structural design allows the sliding rods 142 to slide within the grooves and apply clamping force to the steel pipe through the radial sleeves 141. The design of the radial sleeves 141 ensures a uniform distribution of clamping force, adapting to steel pipes of different diameters. The double piston rod cylinder 11... The piston rod drives the two wedge-shaped seats 131 to slide towards the rotating seat structure 3. This horizontal sliding action is the core of the entire clamping and pushing process. Through the thrust provided by the cylinder 11 with double piston rod, the wedge-shaped seats 131 can push the steel pipe from the initial position to the welding position, ensuring that the ends of the two steel pipes are in close contact. The sliding wedge-shaped seats 131 radially compress the sliding rod 142 and the radial sliding sleeve 141 through the sliding groove. When the wedge-shaped seats 131 slide in the horizontal direction, the inclined sliding groove inside it will exert a radial compression effect on the sliding rod 142 and the radial sliding sleeve 141. This compression effect causes the sliding rod 142 to slide in the sliding groove. At the same time, the radial sliding sleeve 141 applies a clamping force to the steel pipe. This design not only realizes the automatic clamping of the steel pipe, but also dynamically adjusts the clamping force as the steel pipe approaches, ensuring that the steel pipe remains stable during the welding process.

[0052] In the embodiments of the present invention, please refer to Figure 9 and Figure 10 A toothed rod 144 is provided on the side of the radial sliding sleeve 141 near the axis of the steel pipe. A second return spring 146 is provided on the side of the toothed rod 144 near the radial sliding sleeve 141. The second return spring 146 provides redundant sliding space for the toothed rod 144 away from the steel pipe and provides a reset force for the toothed rod 144 after the steel pipe is removed from the sleeve 7. This design allows the toothed rod 144 to have a certain sliding range when squeezed by the radial sliding sleeve 141, avoiding excessive stress caused by rigid connection. At the same time, when the steel pipe is removed from the sleeve 7, the second return spring 146 can provide a reset force for the toothed rod 144 to return it to its initial position, facilitating the next clamping operation. The squeezed radial sliding sleeve 141 radially squeezes the second return spring 146. The second return spring 146 radially compresses the toothed rod 144, causing the toothed rod 144 to move closer to the steel pipe. The toothed rod 144 clamps the steel pipe and, under the push of the piston rod, drives the two steel pipes closer to each other. When the radial sliding sleeve 141 is compressed by the horizontal sliding structure 13, the radial sliding sleeve 141 radially compresses the second return spring 146. The second return spring 146 then transmits the force to the toothed rod 144, causing the toothed rod 144 to move closer to the steel pipe. The approaching action of the toothed rod 144 causes it to contact the steel pipe and apply a clamping force, thereby firmly clamping the steel pipe. Under the push of the piston rod of the double piston rod cylinder 11, the horizontal sliding structure 13 continues to slide. Through the cooperation of the wedge seat 131 and the radial sliding sleeve 141, the two steel pipes are driven closer to each other until the ends of the two steel pipes are in close contact.

[0053] When the two steel pipes come into contact, if the piston rod of the double piston rod cylinder 11 continues to push the wedge seat 131 to slide towards the rotating seat structure 3, the wedge seat 131 will continue to apply pressure to the rack 144 through the radial sliding sleeve 141. Since the rack 144 and the radial sliding sleeve 141 are not rigidly connected, but indirectly connected through the second return spring 146, the second return spring 146 will be further compressed. This compression provides redundancy for the sliding action, enabling the device to absorb excess thrust and prevent the two steel pipes from deforming due to excessive compression. This design not only protects the structural integrity of the steel pipes, but also improves the reliability and durability of the welding device.

[0054] In the embodiments of the present invention, please refer to Figure 6-7A swing block 145 is hinged to the side of the rack 144 near the steel pipe. This hinge design allows the swing block 145 to swing freely within a certain range. A stop post is provided on the side of the hinge point near the rotating seat structure 3. The stop post limits the swing range of the swing block 145 and prevents excessive swinging that could lead to structural instability or damage. The swing block 145 is asymmetrically designed, with the side closer to the rotating seat structure 3 being longer and the side farther from the rotating seat structure 3 being shorter. This design allows the swing block 145 to naturally form a trumpet-shaped structure under its own weight. The opening direction of this trumpet-shaped structure... With the horn opening facing the direction of the steel pipe insertion, away from the rotating seat structure 3, this design effectively guides the steel pipe smoothly into the sleeve 7, reducing resistance and friction during insertion and improving the ease of use and efficiency of the device. Several swing blocks 145 guide the steel pipe inserted into the sleeve 7. When the steel pipe is inserted, the long end of the swing block 145 can contact the steel pipe and swing appropriately under the push of the steel pipe, thereby guiding the steel pipe smoothly into the sleeve 7. This guiding function not only improves the accuracy of steel pipe insertion but also reduces wear between the steel pipe and the sleeve 7, extending the service life of the device.

[0055] In the embodiments of the present invention, please refer to Figure 9-14 One end of the rack 144 is inserted into the interior of the radial sliding sleeve 141, and a horizontal sliding sleeve 143 is slidably fitted onto the outside of the radial sliding sleeve 141. The horizontal sliding sleeve 143 slides in a limiting groove opened in the side wall of the sleeve 7. This design allows the rack 144 and the radial sliding sleeve 141 to slide horizontally, while the sliding of the horizontal sliding sleeve 143 in the limiting groove restricts the range of motion of the rack 144 and the radial sliding sleeve 141, ensuring the stability and accuracy of their movement. The horizontal sliding of the wedge seat 131 drives the horizontal sliding sleeve 143 to slide horizontally through the radial sliding sleeve 141. When the wedge seat 131 slides horizontally, it drives the horizontal sliding sleeve 143 to slide horizontally in the limiting groove through the radial sliding sleeve 141. The linkage mechanism enables the movement of the wedge seat 131 to be transmitted to the rack 144, thereby realizing the clamping and pushing function of the steel pipe. The horizontal sliding is transmitted through the cooperation of the radial sliding sleeve 141 and the horizontal sliding sleeve 143, ensuring the smoothness and reliability of the movement. A wedge-shaped buckle 135 is provided on the side of the horizontal sliding sleeve 143 away from the rotating seat structure 3. Helical teeth are provided on the side wall of the rack 144. The design of the helical teeth enables the rack 144 to interact with the wedge-shaped buckle 135 when subjected to radial force, realizing the positioning and fixing function of the rack 144. At this time, the wedge-shaped buckle 135 prevents the rack 144 from sliding further away from the steel pipe through the helical teeth, and cooperates with the rack 144 moving towards the steel pipe to fix the steel pipe a second time.

[0056] When the steel pipe is inserted into the sleeve 7, the steel pipe pushes the toothed rod 144 to slide away from the steel pipe. During the sliding process, the toothed rod 144 compresses the second return spring 146, thereby generating a certain clamping force. This initial clamping force can temporarily fix the steel pipe in the sleeve 7 to prevent it from shifting in subsequent operations. At this time, several toothed rods 144 work together to initially clamp the steel pipe. When the double piston rod cylinder 11 drives the wedge seat 131 to slide through the piston rod, the wedge-shaped buckle 135 will move closer to the helical teeth on the toothed rod 144. As the wedge seat 131 continues to slide, the wedge-shaped buckle 135 finally engages with the side of the helical teeth away from the steel pipe. This engagement design makes the toothed rod 144... When subjected to radial force, it can be firmly fixed to prevent it from continuing to slide away from the steel pipe. At this time, the wedge-shaped buckle 135 prevents the toothed rod 144 from continuing to slide away from the steel pipe through the helical teeth. It cooperates with the toothed rod 144 moving towards the steel pipe to perform secondary fixation on the steel pipe. When the wedge-shaped buckle 135 is engaged on the side of the helical teeth away from the steel pipe, it will prevent the toothed rod 144 from continuing to slide away from the steel pipe. At this time, the toothed rod 144 moves towards the steel pipe under the action of the second return spring 146, further increasing the clamping force, thereby achieving secondary fixation of the steel pipe. This secondary fixation design can ensure that the steel pipe remains stable during the welding process and prevent it from being displaced or shaking due to external forces.

[0057] In the embodiments of the present invention, please refer to Figure 8 A T-shaped plate 132 is fixedly connected to the side of the wedge-shaped seat 131 away from the rotating seat structure 3. The side of the T-shaped plate 132 near the steel pipe penetrates the side wall of the sleeve 7 and is fixedly connected to a first connecting plate 133. This structural design allows the movement of the wedge-shaped seat 131 to be transmitted to the first connecting plate 133 through the T-shaped plate 132, thereby realizing the linkage of the entire horizontal sliding structure 13. A second connecting plate 134 is provided on the side of the first connecting plate 133 near the rotating seat structure 3. The second connecting plate 134 slides in the limiting groove of the sleeve 7. The function of the limiting groove is to restrict the movement of the second connecting plate 134. The direction of movement of the connecting plate 134 ensures that it slides smoothly in the horizontal direction. This design further improves the stability and reliability of the entire horizontal sliding structure 13. The first connecting plate 133 is inserted into the interior of the second connecting plate 134, and a first return spring 136 is provided between the second connecting plate 134 and the first connecting plate 133. The function of the first return spring 136 is to provide a certain elastic buffer during the horizontal sliding process to prevent structural damage due to excessive compression. This elastic buffer design can effectively absorb the impact force during the movement and protect the various components of the device.

[0058] The spring force of the first return spring 136 is less than that of the second return spring 146. The spring force of the first return spring 136 is designed to be less than that of the second return spring 146. This design prioritizes the protection of the horizontal sliding structure 13 during movement, preventing damage to components such as the wedge seat 131 and the first connecting plate 133 due to excessive compression. When the wedge seat 131 and the first connecting plate 133 are subjected to a large horizontal thrust, the first return spring 136 deforms before the second return spring 146, thus providing a buffering effect. The wedge-shaped buckle 135 is fixedly connected to the second connecting plate 134. After the wedge-shaped buckle 135 contacts the toothed bar 144, the wedge-shaped buckle 135... The first return spring 136 is compressed in the reverse direction by the second connecting plate 134, causing the first return spring 136 to deform. The wedge-shaped buckle 135 is fixedly connected to the second connecting plate 134. When the wedge-shaped buckle 135 contacts the toothed bar 144, the wedge-shaped buckle 135 compresses the first return spring 136 in the reverse direction through the second connecting plate 134, causing the first return spring 136 to deform. This reverse compression design can effectively prevent the first connecting plate 133 from continuing to slide, thereby avoiding damage to the wedge-shaped buckle 135 and the toothed bar 144 due to excessive compression. Through the elastic buffer of the first return spring 136, the device can maintain stability during complex movements and extend its service life.

[0059] In the embodiments of the present invention, please refer to Figure 10-14 The top of the radial sliding sleeve 141 is provided with a groove. One end of the piston rod of the double piston rod cylinder 11 passes through the groove and is fixedly connected to one of the two wedge seats 131 that is away from the rotating seat structure 3. This design allows the piston rod to slide smoothly in the groove and provides guidance for the movement of the piston rod, ensuring the accuracy of its movement. The other end of the piston rod is fixedly connected to one of the two T-shaped plates 132 that is closer to the rotating seat structure 3. This connection method allows the double piston rod cylinder 11 to directly drive the wedge seat 131 to slide in the horizontal direction. The other end of the piston rod is fixedly connected to one of the two T-shaped plates 132 that is closer to the rotating seat structure 3. This design allows the thrust of the double piston rod cylinder 11 to be transmitted to the entire horizontal sliding structure 13 through the T-shaped plate 132, thereby realizing the pushing and clamping function of the steel pipe.

[0060] In the embodiments of the present invention, please refer to Figure 2-3The rotating seat structure 3 includes a ring frame 31, on which two support seats 32 are symmetrically mounted. A welding torch 8 is installed in each support seat 32. This symmetrical installation allows the two welding torches 8 to simultaneously weld the joints of the steel pipes from different positions. This design not only improves welding efficiency but also ensures the uniformity and quality of the weld. The rotating ring structure 2 includes a connecting ring 21 fixedly mounted on one side of the ring frame 31. A collar 22 is fixedly fitted on the side of the connecting ring 21 away from the ring frame 31. A blocking ring 24 is fixedly connected to both the connecting ring 21 and the collar 22 on the side away from the rotating seat structure 3. A convex ring 23 is rotatably arranged between the blocking ring 24, the collar 22, and the connecting ring 21. This structure, through mutual interlocking and displacement of the resistance components, allows the rotating ring structure 2 to rotate around the ring. The frame 31 rotates stably, providing support for the rotation operation during the welding process. The convex ring 23 is fixedly connected to the sleeve 7 on the side away from the rotating seat structure 3. The steel pipe is fixed inside the sleeve 7. This fixing method ensures that the steel pipe remains stable during the welding process and will not be displaced or shaken due to external forces. The design of the sleeve 7 can adapt to steel pipes of different diameters, improving the versatility and flexibility of the device. The plugging ring 24 drives the ring frame 31 to rotate by driving the connecting ring 21 and the collar ring 22, so that the two welding torches 8 on the ring frame 31 weld around the joint of the steel pipe. This design allows the welding torches 8 to weld the joint of the steel pipe from all directions during the welding process, ensuring the uniformity and quality of the welding. At the same time, the steel pipe remains stationary inside the sleeve 7, avoiding the stress concentration problem caused by the rotation of the steel pipe itself.

[0061] In the embodiments of the present invention, please refer to Figure 2-3 A toothed ring 4 is fixedly fitted on the outer side of a connecting ring 21. A motor 6 is fixedly installed on the side wall of the sleeve 7 on the side of the toothed ring 4 away from the rotating seat structure 3. A gear 5 is fixedly connected to the rotating shaft of the motor 6. The gear 5 meshes with the toothed ring 4. The motor 6 drives the gear 5 to rotate through the rotating shaft. The rotating gear 5 drives the connecting ring 21 and the ring frame 31 to rotate through the toothed ring 4. Through the meshing transmission of the gear 5 and the toothed ring 4 driven by the motor 6, the device can efficiently transmit power to the connecting ring 21 and the ring frame 31, ensuring that the welding torch 8 can smoothly perform welding operations around the joint of the steel pipe. This transmission method not only improves the uniformity and flexibility of welding, but also reduces energy loss during power transmission.

[0062] This device, through the cooperation of the wedge-shaped seat 131 and the toothed rod 144 in the telescopic clamping structure 1, can adapt to steel pipes of different diameters, realize the automatic clamping and pushing of the steel pipes, and ensure the stability of the steel pipes during welding. Utilizing the rotating ring structure 2 and the rotating seat structure 3, in conjunction with the meshing transmission of the gear 5 and the toothed ring 4 driven by the motor 6, the welding torch 8 can rotate and weld in all directions, while the steel pipe remains stationary, avoiding stress concentration problems that may occur due to the rotation of the steel pipe itself, and improving the uniformity and quality of the welding. Through the thrust of the double piston rod cylinder 11, the wedge-shaped seat 131 is driven to slide horizontally, which in turn pushes the toothed rod 144 to slide closer to the rotating seat structure 3, realizing the automatic approach and close contact of the two steel pipes, providing good initial conditions for welding, and preventing the steel pipes from deforming due to excessive compression.

[0063] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A steel structure forming and welding device, comprising a rotating seat structure (3) disposed between two sleeves (7), characterized in that, Also includes: Two welding torches (8) are symmetrically arranged on the rotating seat structure (3), and the two welding torches (8) simultaneously weld the joint of the steel pipe from different positions; The rotating ring structure (2) is symmetrically arranged on both sides of the rotating seat structure (3), and the rotating ring structure (2) drives the rotating seat structure (3) to rotate; Several telescopic clamping structures (1) are arranged in a ring array on the sleeve (7). The telescopic clamping structures (1) clamp the ends of steel pipes of different diameters and push the two steel pipes in the direction of the rotating seat structure (3) so that the two steel pipes come into contact with each other. After the two steel pipes are squeezed, the telescopic clamping structure (1) stops pushing the steel pipes and continues to hold the steel pipes. The telescopic clamping structure (1) includes a mounting base (12) fixedly mounted on the sleeve (7) in a ring array. A double piston rod cylinder (11) is fixedly mounted on the mounting base (12). Both ends of the piston rod of the double piston rod cylinder (11) are provided with a horizontal sliding structure (13) and a radial sliding structure (14). The double piston rod cylinder (11) drives the horizontal sliding structure (13) to slide through the piston rod. The sliding horizontal sliding structure (13) pushes the two steel pipes closer to each other and radially squeezes the radial sliding structure (14). The squeezed radial sliding structure (14) clamps the steel pipe. The horizontal sliding structure (13) includes a wedge-shaped seat (131), and two inclined grooves are provided in the wedge-shaped seat (131). The radial sliding structure (14) includes two slide rods (142) that are engaged in the grooves. A radial sleeve (141) is fixedly installed on one side of the two slide rods (142). The double piston rod cylinder (11) drives the two wedge-shaped seats (131) to slide through the piston rod. The sliding wedge-shaped seats (131) radially press the slide rods (142) and the radial sleeves (141) through the grooves. A toothed rod (144) is provided on one side of the radial sliding sleeve (141), and a second return spring (146) is provided on one side of the toothed rod (144). The compressed radial sliding sleeve (141) radially compresses the second return spring (146), and the second return spring (146) radially compresses the toothed rod (144), causing the toothed rod (144) to move closer to the steel pipe. The toothed rod (144) clamps the steel pipe and, under the push of the piston rod, drives the two steel pipes to move closer to each other. The rack (144) is hinged to a swing block (145) on the side near the steel pipe, and a stop post is provided on the side of the hinge point near the rotating seat structure (3). Several swing blocks (145) guide the steel pipe inserted into the sleeve (7).

2. The steel structure forming and welding device according to claim 1, characterized in that, One end of the rack (144) is inserted into the interior of the radial sliding sleeve (141), and the outer sliding sleeve of the radial sliding sleeve (141) is provided with a horizontal sliding sleeve (143). The horizontal sliding sleeve (143) slides in the limiting groove opened in the side wall of the sleeve (7). A wedge-shaped buckle (135) is provided on the side of the horizontal sliding sleeve (143) away from the rotating seat structure (3). A helical tooth is provided on the side wall of the rack (144). The wedge-shaped buckle (135) prevents the rack (144) from continuing to slide away from the steel pipe through the helical tooth, and cooperates with the rack (144) moving towards the steel pipe to fix the steel pipe for a second time.

3. The steel structure forming and welding device according to claim 2, characterized in that, A T-shaped plate (132) is fixedly connected to one side of the wedge-shaped seat (131). One side of the T-shaped plate (132) passes through the side wall of the sleeve (7) and is fixedly connected to a first connecting plate (133). A second connecting plate (134) is provided on one side of the first connecting plate (133). The second connecting plate (134) slides in the limiting groove of the sleeve (7). The first connecting plate (133) is inserted into the inside of the second connecting plate (134). A first reset spring (136) is provided between the second connecting plate (134) and the first connecting plate (133). A wedge-shaped buckle (135) is fixedly connected to the second connecting plate (134). After the wedge-shaped buckle (135) contacts the toothed rod (144), the wedge-shaped buckle (135) presses the first reset spring (136) in the opposite direction through the second connecting plate (134), causing the first reset spring (136) to deform.

4. The steel structure forming and welding device according to claim 3, characterized in that, The top of the radial sliding sleeve (141) has a groove. One end of the piston rod of the double piston rod cylinder (11) passes through the groove and is fixedly connected to a wedge-shaped seat (131). The other end of the piston rod is fixedly connected to a T-shaped plate (132).

5. The steel structure forming and welding device according to claim 1, characterized in that, The rotating seat structure (3) includes a ring frame (31) and a support seat (32). The welding torch (8) is installed in the support seat (32). The rotating ring structure (2) includes a connecting ring (21). A collar (22) is fixedly sleeved on one side of the connecting ring (21). A blocking ring (24) is fixedly connected to one side of both the connecting ring (21) and the collar (22). A convex ring (23) is rotatably arranged between the blocking ring (24), the collar (22), and the connecting ring (21). One side of the convex ring (23) is fixedly connected to the sleeve (7). The steel pipe is fixed inside the sleeve (7). The blocking ring (24) drives the ring frame (31) to rotate by driving the connecting ring (21) and the collar (22), so that the two welding torches (8) on the ring frame (31) weld around the connection of the steel pipe.

6. The steel structure forming and welding device according to claim 5, characterized in that, A toothed ring (4) is fitted on the outside of a connecting ring (21). A motor (6) is fixedly installed on the side wall of the sleeve (7) on one side of the toothed ring (4). A gear (5) is fixedly connected to the shaft of the motor (6). The gear (5) meshes with the toothed ring (4). The motor (6) drives the gear (5) to rotate through the shaft. The rotating gear (5) drives the connecting ring (21) and the ring frame (31) to rotate through the toothed ring (4).

Images