Movable T-beam wet joint steel bar welding device

Abstract

The invention discloses a movable T-beam wet joint steel bar welding device, and relates to the technical field of welding. Comprising a frame, a hopper, a conveying mechanism and a slag receiving disc, a guide plate and a push plate are matched in an abutting mode, a clamping jaw is driven to accurately turn over by 90 degrees and keep the posture facing the falling direction of the reinforcing steel bars, and automatic centering and stable clamping of the reinforcing steel bars are achieved in cooperation with guide extrusion of the slope face of the clamping jaw and automatic reset of an elastic piece; the accuracy and reliability of steel bar clamping are effectively improved; by means of circulating transmission of the chain, the clamp is driven to complete coherent actions of feeding, transferring and butt joint of the reinforcing steel bars, the automatic unlocking structure of the connecting plate is matched, positioning and transferring of the reinforcing steel bars can be completed without manual intervention, and the work efficiency of butt joint of the T-beam wet joint reinforcing steel bars is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a mobile T-beam wet joint reinforcement welding device. Background Technology

[0002] As a widely used precast concrete component in bridge engineering, T-beams require steel reinforcement and concrete pouring at the wet joints between adjacent T-beams after on-site erection. This process enables the discretely arranged T-beams to form a cohesive superstructure, thereby ensuring the overall load-bearing capacity and service stability of the bridge superstructure.

[0003] In current engineering practice, the welding of steel reinforcement in wet joints of T-beams mostly adopts the traditional manual operation mode with handheld welding torches. Operators must manually complete a series of procedures, including steel reinforcement positioning, welding torch alignment, and welding parameter adjustment, in high-altitude or confined wet joint working spaces. This method has technical defects and construction drawbacks: the positioning accuracy of manual welding operations depends entirely on the operator's skill level and on-site experience. In actual construction, due to various factors such as interference from the high-altitude working environment, operator fatigue, and human judgment errors, it is difficult to accurately guarantee the consistency of steel reinforcement lap length, welding gap, and welding angle. This easily leads to problems such as insufficient or excessive steel reinforcement lap length and welding angle deviation from the preset standard, making it difficult to achieve standardized construction control and posing potential hidden dangers to the long-term safe operation of the bridge structure.

[0004] To address this issue, we designed a mobile T-beam wet joint reinforcement welding device. Summary of the Invention

[0005] In response to the above situation and to overcome the defects of the existing technology, the present invention provides a mobile T-beam wet joint rebar welding device, which automatically connects the rebars to achieve precise and automated welding operations; and uses a slag receiving tray to collect the welding slag to form a protective layer; thus solving the problems of low positioning accuracy, high dependence on manual labor, and significant safety hazards in the existing technology.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A mobile T-beam wet joint rebar welding device includes: a frame, a hopper, a conveying mechanism, and a slag receiving tray; The frame is equipped with a first roller; the frame contains a hopper for discharging steel bars one by one; the transmission mechanism is mounted on the frame; the transmission mechanism includes a chain, clamps, drive shafts, a motor, and guide plates; three drive shafts encircle two chains in a triangle; multiple clamps are fixed at equal intervals along the length of each chain, and the clamps on the two chains are arranged in a one-to-one correspondence; the two guide plates are connected to the frame; a shaft is horizontally inserted at the lower outlet of the hopper, and two connecting plates are rotatably sleeved on the shaft, and a torsion spring is embedded in the rotatable connection between each connecting plate and the shaft; the two connecting plates are always tilted downwards.

[0007] In one embodiment, the movement trajectory of the chain is divided into three functional segments: the horizontal chain segment is the clamping segment, the vertical chain segment is the docking segment, and the inclined chain segment is the return segment. The three functional segments are connected end to end to form a closed transmission path, and the docking segment is located at the wet joint of the two T-beams.

[0008] In one embodiment, the fixture includes a base, an assembly block, grippers, and a push plate; one end of the assembly block is rotatably connected to the upper surface of the base, and a torsion spring is embedded in the rotatable connection between the two. Under the preload of the torsion spring, the base and the assembly block maintain a mutually perpendicular posture in the initial state; the push plate is fixed on the side wall of the assembly block away from the base, and the arrangement position of the push plate is in the same vertical plane as the rotation axis of the base and the assembly block; there are two grippers, which are symmetrically and relatively slidably assembled on the upper surface of the assembly block, and elastic elements are provided at the sliding connection between the assembly block and each gripper; the free ends of the two grippers are processed into relatively inclined slopes, and the inclination angle of the slopes is adapted to the outer diameter of the reinforcing bar.

[0009] In one embodiment, the slag receiving tray is mounted on the frame by screws, and water is pre-filled into the slag receiving tray.

[0010] In one embodiment, the upper region of the hopper is provided with a feeding group, and the discharge port of the hopper is integrally formed with a horizontally extending extension section one. The bottom surface of the extension section one is designed with an inclined structure, and the inclined direction is towards the discharge direction of the hopper to guide the steel bars to slide smoothly. The end of the extension section one is vertically connected to the extension section two, and the lower end of the extension section two is provided with a connecting plate.

[0011] In one embodiment, the feeding assembly includes a transmission rod and two identical limiting plate assemblies, which are respectively installed at both ends of a top surface of the extension section.

[0012] In one embodiment, the limiting plate assembly consists of a second limiting plate, a second wedge block, a first limiting plate, and a first wedge block; wherein the second limiting plate and the first limiting plate are arranged perpendicularly to each other, and both are slidably connected to the top surface of the first extension section; the first limiting plate is positioned in front of the second limiting plate along the rolling direction of the reinforcing bar, and in the initial state, the lower end of the first limiting plate forms a block against the reinforcing bar; a first wedge block and a second wedge block are respectively fixed on the first limiting plate and the second limiting plate, the first wedge block and the second wedge block are arranged vertically correspondingly, and their opposing surfaces are relatively inclined slopes; the second limiting plate is connected to a compression spring rod; the first limiting plate is connected to a tension spring rod.

[0013] In one embodiment, the two ends of the transmission rod are respectively attached to the inclined surfaces of wedge block one and wedge block two in the two limiting plate groups, the middle position of the transmission rod is connected to the output end of the electric telescopic rod, and the axis of the electric telescopic rod is set at a 90-degree angle to the axis of the transmission rod.

[0014] In one embodiment, symmetrically distributed mounting plates are fixedly mounted on two sets of opposite walls of the frame; they are rigidly connected by multiple brackets spaced at intervals along the horizontal direction; two second rollers are symmetrically arranged at the lower ends of the two mounting plates; automatic calipers are installed on the second rollers and the first rollers preset at the bottom of the frame, and the automatic calipers can lock and unlock the corresponding first rollers and second rollers; an electric slide rail is also installed between the frame and the two mounting plates.

[0015] In one embodiment, the specific actions are as follows: The automatic clamp on the first roller is controlled to lock the first roller to fix the position of the frame; the electric slide rail is activated to drive the two mounting plates to move synchronously away from the frame, forming an operating space that meets the welding operation requirements; welding operations are performed on the lap joints of multiple sets of extension bars and multiple reinforcing bars within the operating space; after the welding of a single set of extension bars and reinforcing bars is completed, the automatic clamp on the second roller is controlled to lock the second roller to fix the position of the mounting plate; after each set of lap joints of extension bars and reinforcing bars is welded, the automatic clamp on the first roller is unlocked, and the frame is driven to move a set distance closer to the mounting plate via the electric slide rail, so that the transmission mechanism on the frame corresponds to the next set of extension bars to be welded; the above steps of roller locking, relative displacement, and welding operation are repeated until all welding operations of extension bars and reinforcing bars within the operating space are completed, and the frame is reset to the end position of one end of the mounting plate.

[0016] The beneficial effects of this invention are as follows: (1) The abutting cooperation between the guide plate and the push plate of the present invention drives the gripper to rotate precisely 90 degrees and maintain its posture facing the direction of the rebar falling. With the guiding and squeezing of the gripper slope and the automatic reset of the elastic element, the automatic centering and stable clamping of the rebar is realized, which effectively improves the accuracy and reliability of the rebar clamping. With the help of the chain circulation transmission, the clamp is driven to complete the continuous action of rebar feeding, transfer and docking. With the automatic unlocking structure of the connecting plate, the positioning and transfer of the rebar can be completed without manual intervention, which greatly improves the work efficiency of T-beam wet joint rebar docking.

[0017] (2) This invention replaces the repetitive operation of manual handling and positioning of steel bars, reduces the labor intensity of operators, avoids the safety hazards of manual hand-held steel bar welding, and improves construction safety. Each component has a certain adaptability through the elastic adjustment of elastic parts and torsion springs, which can be compatible with the clamping requirements of steel bars of different specifications, enhances the versatility and operational stability of the mechanism, and ensures the quality consistency of wet joint steel bar welding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of one side of the structure of the present invention; Figure 3 This is a schematic diagram of the transmission mechanism of the present invention; Figure 4 This is a schematic diagram of one side of the transmission mechanism of the present invention; Figure 5 This is a schematic diagram of the fixture structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the fixture of the present invention; Figure 7 This is a schematic diagram of the connecting plate structure of the present invention; Figure 8 This is a partial structural diagram of the present invention; Figure 9 This is a schematic diagram of the material feeding assembly structure of the present invention; Figure 10 This is a schematic diagram of one side of the material feeding assembly of the present invention; Figure 11 This is a schematic diagram of the internal structure of the second frame of the present invention.

[0019] In the diagram: 1. Frame; 11. First roller; 12. Connecting rod; 2. Hopper; 21. Connecting plate; 211. Shaft; 201. Extension section one; 202. Extension section two; 3. Transmission mechanism; 31. Chain; 32. Clamp; 33. Drive shaft; 34. Motor; 35. Guide plate; 311. Clamping section; 312. Connecting section; 313. Return section; 321. Base; 322. Assembly block; 323. Gripper. 324. Push plate; 351. Connecting block; 3231. Slope; 3232. Elastic element; 4. Discharge assembly; 41. Transmission rod; 42. Limiting plate assembly; 411. Electric telescopic rod; 421. Second limiting plate; 422. Wedge block two; 423. First limiting plate; 424. Wedge block one; 5. Slag receiving tray; 6. Mounting plate; 61. Bracket; 62. Second roller; 63. Electric slide rail; 100. Reinforcing bar. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0021] First embodiment: Please refer to Figure 1-2 The present invention discloses a mobile T-beam wet joint steel bar welding device, comprising: a frame 1, a hopper 2, a conveying mechanism 3, and a slag receiving tray 5; Please see Figure 1 The frame 1 is equipped with a first roller 11, which allows the frame 1 to move smoothly along the top surface of the T-beam. A hopper 2 is arranged on the inner side of the frame 1, and multiple steel bars 100 are pre-stored within the internal storage space of the hopper 2. A discharge group 4 is configured at the discharge end of the hopper 2, which discharges the steel bars 100 one by one according to a preset frequency. A transmission mechanism 3 is mounted at a designated installation position on the frame 1, and its position corresponds to the lower discharge port of the hopper 2. The core function of the transmission mechanism 3 is to receive and precisely transport the steel bars 100 discharged by the discharge group 4, while simultaneously coaxially connecting the steel bars 100 with the preset extension bars of the T-beam. Please see Figure 2 Both T-beams to be connected have pre-embedded extension bars on their opposite sides. The extension bars are U-shaped structures rotated 90 degrees. During construction, the two steel bars 100 are aligned with the upper and lower sides of the U-shaped extension bars on the two T-beams respectively. Then, the steel bars 100 and the extension bars are welded together by a welding gun to form a strong welded joint. Please see Figure 3-4The transmission mechanism 3 includes a chain 31, a clamp 32, a drive shaft 33, a motor 34, and a guide plate 35. The three drive shafts 33 are arranged in a triangular array, with two drive shafts 33 rotatably mounted within a designated installation area of ​​the frame 1. The lower drive shaft 33 is rotatably connected to the frame 1 via a connecting rod 12. Each drive shaft 33 has a corresponding sprocket fixed at its end. Two parallel chains 31 are respectively wrapped around the outside of the sprockets of the three drive shafts 33. The chain 31 rotates cyclically through the meshing action of the sprockets and chains. The movement trajectory of the chain 31 is divided into three functional segments: a horizontal segment (clamping segment 311), a vertical segment (connecting segment 312), and an inclined segment (returning segment 313). The functional sections are connected end to end to form a closed transmission path. The docking section 312 is located at the wet joint of the two T beams. Any one of the three transmission shafts 33 is coaxially and fixedly connected to the output shaft of the motor 34. The motor 34, as a power source, can drive the transmission shaft 33 connected to it to rotate, and drive the two chains 31 to rotate synchronously through the meshing action of the sprocket. Multiple clamps 32 are fixedly provided at equal intervals along the length direction on the outer side wall of the two chains 31, and the clamps 32 on the two chains 31 are arranged in a one-to-one correspondence. When the hopper 2 conveys the steel bars 100 one by one to the corresponding position of the clamping section 311 through the feeding group 4, the clamps 32 on both sides of the chain 31 can simultaneously clamp the two ends of the steel bars 100, thereby realizing the stable clamping and conveying of the steel bars 100. Please see Figure 5-6 The clamp 32 includes a base 321, an assembly block 322, a gripper 323, and a push plate 324. One end of the assembly block 322 is rotatably connected to the upper end face of the base 321. A torsion spring (not shown in the figure) is embedded in the rotatable connection between the two. Under the preload of the torsion spring, the base 321 and the assembly block 322 maintain a mutually perpendicular posture in the initial state. The push plate 324 is fixed on the side wall of the assembly block 322 away from the base 321, and the arrangement position of the push plate 324 is in the same vertical plane as the rotation axis of the base 321 and the assembly block 322, so as to ensure that the push plate 324 can move with the assembly block. 322 synchronously performs angle deflection; there are two grippers 323, which are symmetrically and relatively slidingly assembled on the upper end face of the assembly block 322. Elastic elements 3232 are provided at the sliding connection between the assembly block 322 and each gripper 323. Under the elastic force of the elastic elements 3232, the two grippers 323 maintain a relatively close initial state; the free ends of the two grippers 323 are processed into relatively inclined slopes 3231. The inclination angle of the slopes 3231 is adapted to the outer diameter of the steel bar 100, which can guide the grippers 323 to automatically open and achieve clamping when the steel bar 100 presses against the slopes 3231. Please see Figure 4The two ends of the two guide plates 35 are connected to the frame 1 through the connecting block 351 and are located above the clamping section 311 of the chain 31. When the clamp 32 moves to the clamping section 311, the end of the guide plate 35 abuts against the push plate 324 in the clamp 32, thereby causing the assembly block 322 to drive the jaws 323 to rotate ninety degrees, so that the free ends of the two jaws 323 face the steel bar 100. Please see Figure 7 A shaft 211 is horizontally inserted through the lower outlet of the hopper 2. Two connecting plates 21 are rotatably sleeved on the shaft 211, and a torsion spring (not shown in the figure) is embedded in the rotatable connection between each connecting plate 21 and the shaft 211. Under the elastic preload of the torsion spring, the two connecting plates 21 always maintain a downward inclined preset posture, and the two are symmetrically arranged on both sides of the outlet of the hopper 2, which can synchronously limit the two ends of the steel bar 100 falling in the hopper 2 and one side along the conveying direction of the steel bar 100. The clamps 32 are arranged in a one-to-one correspondence on the two chains 31, and their positions are within the gap between the two connecting plates 21, so that the steel bar 100 can be stably clamped and conveyed after the steel bar 100 is limited. The elastic force of the elastic element 3232 is less than the elastic force of the torsion spring. The slag receiving tray 5 is installed at the lower end of the connecting rod 12 by screws. The slag receiving tray 5 is used to receive the welding slag falling from above. Water is poured into the slag receiving tray 5 in advance. After the welding slag falls into the slag receiving tray 5, the sparks carried by the slag can be extinguished directly.

[0022] Working principle of this invention: Please see Figure 8 When the two sets of clamps 32 move synchronously with the chain 31 to the preset position of the clamping section 311, the end of the guide plate 35 abuts against the push plate 324 of the clamp 32. As the chain 31 continues to drive, the guide plate 35 applies a continuous pushing force to the push plate 324, forcing the assembly block 322 to overcome the elastic preload of the torsion spring 1. With the rotation axis of the base 321 and the assembly block 322 as the center, the two grippers 323 on it are rotated 90 degrees synchronously until the free ends of the two grippers 323 are precisely facing the direction of the steel bar 100 falling from the discharge port of the hopper 2. Under the guidance of the guide plate 35, the two sets of clamps 32 continue to move horizontally along the clamping section 311. During the movement, the guide plate 35 continuously limits the clamps 32 through the push plate 324. At this time, the steel bar 100 in the hopper 2 falls to the clamping area of ​​the claw 323 after being limited and guided by the connecting plate 21. The outer wall of the steel bar 100 comes into contact with the slope 3231 of the free end of the two claws 323 and is squeezed. Under the action of the squeezing force, the two claws 323 overcome the elastic force of the elastic element 3232 and move in opposite directions along the slide of the assembly block 322 to achieve automatic opening. After the steel bar 100 falls completely into the clamping area between the two claws 323, the elastic restoring force of the elastic element 3232 drives the two claws 323 to move towards each other, thereby completing the stable clamping of the steel bar 100. After clamping the reinforcing bar 100, the clamp 32 continues to move along the clamping section 311. The traction force generated during its movement causes the two connecting plates 21 to overcome the elastic preload of the torsion spring 2 and flip downward around the axis 211, so that the connecting plates 21 are completely separated from the outer wall of the reinforcing bar 100, and the limiting constraint on the reinforcing bar 100 is released. When the push plate 324 moves with the clamp 32 to the end position of the guide plate 35, the contact between the push plate 324 and the guide plate 35 is released. The elastic restoring force of the torsion spring drives the assembly block 322 to rotate the gripper 323 in the opposite direction by 90 degrees until the gripper 323 and the base 321 return to their initial perpendicular position. This completes the reset process of a single clamping action. The above clamping and resetting actions are performed cyclically. The four clamps 32 clamp the two steel bars 100 simultaneously. Then, they move from the clamping section 311 to the docking section 312 along the chain 31. Under the vertical guidance of the docking section 312, the two steel bars 100 are aligned with the upper and lower sides of the "U"-shaped extension bars on the two T-beams, respectively. Finally, the operator holds a welding gun to weld the joint between the steel bars 100 and the extension bars, completing the connection process of the wet joint steel bars.

[0023] Second embodiment: Please refer to Figure 9-10 The upper part of the hopper 2 is equipped with a feeding group 4. The discharge port of the hopper 2 is integrally formed with a horizontally extending extension section 201. The bottom surface of the extension section 201 is designed with an inclined structure, and the inclined direction is towards the discharge direction of the hopper 2 to guide the steel bar 100 to slide smoothly. The end of the extension section 201 is vertically connected to the extension section 202, and the lower end of the extension section 202 is provided with a connecting plate 21. The feeding assembly 4 includes a transmission rod 41 and two identical limiting plate assemblies 42. The two limiting plate assemblies 42 are respectively installed at both ends of the top surface of the extension section 201 and are parallel to the length direction of the extension section 201. Each limiting plate assembly 42 consists of a second limiting plate 421, a second wedge block 422, a first limiting plate 423, and a first wedge block 424. The second limiting plate 421 and the first limiting plate 423 are arranged perpendicularly to each other, and both are slidably connected to the top surface of the extension section 201, allowing for vertical displacement along the height direction of the extension section 201. The first limiting plate 423 is positioned in front of the second limiting plate 421 along the rolling direction of the reinforcing bar 100. In this state, the lower end of the first limiting plate 423 forms a barrier against the reinforcing bar 100, preventing it from rolling directly into the extension section 202. Wedge-shaped blocks 424 and 422 are respectively fixed on the first limiting plate 423 and the second limiting plate 421. The wedge-shaped blocks 424 and 422 are arranged vertically in a corresponding manner, with their opposing surfaces being relatively inclined. When an external force acts on the inclined surfaces, the horizontal force can be converted into a vertical lifting driving force. A compression spring is connected to the second limiting plate 421, providing elastic support for the reset of the second limiting plate 421. A tension spring is connected to the first limiting plate 423, enabling the automatic reset function of the first limiting plate 423. The two ends of the transmission rod 41 are respectively attached to the inclined surfaces of the first wedge block 424 and the second wedge block 422 in the two limiting plate groups 42. The middle position of the transmission rod 41 is connected to the output end of the electric telescopic rod 411. The axis of the electric telescopic rod 411 is set at a 90-degree angle with the axis of the transmission rod 41. The electric telescopic rod can drive the transmission rod 41 to make linear reciprocating motion along the length direction of the extension section 201.

[0024] Working principle of this invention: During the material feeding operation, when the electric telescopic rod 411 pulls the transmission rod 41 to move horizontally, the two ends of the transmission rod 41 will slide relative to the inclined surfaces of wedge block 1 424 and wedge block 2 422 respectively, and apply a horizontal thrust to wedge block 1 424 and wedge block 2 422. Under the force transmission action of the inclined surface, this horizontal thrust is converted into a vertical force, which in turn pushes wedge block 1 424 to move the first limiting plate 423 upward and wedge block 2 422 to move the second limiting plate 421 downward. At this time, the blocking effect of the first limiting plate 423 is released, and the second limiting plate 421 moves down to below the top surface of extension section 1 201. The steel bar 100 located between the second limiting plate 421 and the first limiting plate 423 will roll along the inclined bottom of extension section 1 201 towards extension section 2 202, and Finally, it falls onto the connecting plate 21; at the same time, the second limiting plate 421 can block the rear steel bar 100, preventing the subsequent steel bar 100 from rolling down; when the electric telescopic rod 411 pushes the transmission rod 41 to move in the opposite direction and reset, the pushing force of the transmission rod 41 on the wedge block 1 424 and the wedge block 2 422 disappears, the second limiting plate 421 resets upward under the elastic restoring force of the compression spring rod, and the first limiting plate 423 resets downward under the elastic tension of the tension spring rod. Both return to their initial height, the second limiting plate 421 releases the obstruction of the rear steel bar 100, allowing some steel bars 100 to enter the area between the two limiting plates, waiting for the next feeding action; through the reciprocating drive of the electric telescopic rod 411, the feeding group 4 can repeatedly execute the above feeding process, thereby realizing the orderly discharge of the steel bars 100 one by one.

[0025] Third embodiment: Please refer to Figure 11 At the two sets of opposite walls of the frame 1, symmetrically distributed mounting plates 6 are fixedly assembled; the upper ends of the two mounting plates 6 are rigidly connected by multiple brackets 61 arranged at intervals along the horizontal direction, together forming a stable integral support structure. Two second rollers 62 are symmetrically arranged at the lower ends of the two mounting plates 6; automatic calipers are installed on the second rollers 62 and the first rollers 11 preset at the bottom of the frame 1, respectively, and the automatic calipers can realize the locking and unlocking actions of the corresponding first rollers 11 and second rollers 62. An electric slide rail 63 is also assembled between the frame 1 and the two mounting plates 6, and the electric slide rail 63 can drive the mounting plates 6 and the frame 1 to move relative to each other in the horizontal direction.

[0026] The specific steps are as follows: Step 1: First, control the automatic caliper mounted on the first roller 11 to make the first roller 11 fully locked, thereby fixing the position of the frame 1. Step 2: Start the electric slide rail 63, which drives the two mounting plates 6 to move synchronously away from the frame 1 until an operating space that meets the welding operation requirements is formed between the mounting plates 6 and the frame 1. Step 3: After the operating space is formed, the operator can perform welding operations on the overlapping parts of multiple sets of extension bars and multiple steel bars 100 located in the space; after the welding operation of a single set of extension bars and steel bars 100 is completed, control the automatic clamp action on the second roller 62 to lock the second roller 62, thereby fixing the position of the mounting plate 6. Step 4: After each set of the lap joints of the extension bar and the reinforcing bar 100 is welded, the automatic clamp of the first roller 11 is unlocked, and then the electric slide rail 63 drives the frame 1 to move a set distance toward the mounting plate 6, so that the transmission mechanism 3 preset on the frame 1 corresponds to the next set of extension bars to be welded. Step 5: Repeat the above steps of roller locking, relative displacement, and welding until all extension bars and steel bars 100 in the operating space between the mounting plate 6 and the frame 1 are welded; after all welding work in this area is completed, the frame 1 is reset to the end position of one end of the mounting plate 6. Through the aforementioned step-by-step cyclical operation, the welding of all extension bars and reinforcing bars 100 in the wet joint area between two T-beams can be completed continuously, ensuring the connection strength and construction quality of the wet joint.

[0027] The above embodiments are merely one of the preferred embodiments of the present invention and should not be used to limit the scope of protection of the present invention. Any modifications or refinements made to the main design concept and spirit of the present invention that are not of substantial significance, but solve the same technical problem as the present invention, should be included within the scope of protection of the present invention.

Claims

1. A mobile T-beam wet joint reinforcement welding device, comprising: The frame (1), hopper (2), conveying mechanism (3), and slag receiving tray (5) are characterized in that: the frame (1) is provided with a first roller (11); the frame (1) is provided with a hopper (2), which discharges the reinforcing bars (100) one by one; the conveying mechanism (3) is assembled on the frame (1); the conveying mechanism (3) includes a chain (31), a clamp (32), a drive shaft (33), a motor (34), and a guide plate (35); the three drive shafts (33) encircle the two chains (31) into a triangle; the two... Each chain (31) is fixed with multiple clamps (32) at equal intervals along its length, and the clamps (32) on the two chains (31) are arranged in a one-to-one correspondence; the two guide plates (35) are connected to the frame (1); a shaft (211) is horizontally inserted at the lower discharge port of the hopper (2), and two connecting plates (21) are rotatably sleeved on the shaft (211), and a torsion spring is embedded in the rotatable connection between each connecting plate (21) and the shaft (211); the two connecting plates (21) are always tilted downwards.

2. The mobile T-beam wet joint reinforcement welding device according to claim 1, characterized in that: The movement trajectory of the chain (31) is divided into three functional segments: the horizontal chain segment is the clamping segment (311), the vertical chain segment is the docking segment (312), and the inclined chain segment is the return segment (313). The three functional segments are connected end to end to form a closed transmission path. The docking segment (312) is located at the wet joint of the two T beams.

3. The mobile T-beam wet joint reinforcement welding device according to claim 1, characterized in that: The clamp (32) includes a base (321), an assembly block (322), a gripper (323), and a push plate (324). One end of the assembly block (322) is rotatably connected to the upper end face of the base (321). A torsion spring is embedded in the rotatable connection between the two. Under the preload of the torsion spring, the base (321) and the assembly block (322) maintain a mutually perpendicular posture in the initial state. The push plate (324) is fixed on the side wall of the assembly block (322) away from the base (321), and the arrangement position of the push plate (324) is... The rotation axis (211) of the base (321) and the assembly block (322) is in the same vertical plane; there are two grippers (323), which are symmetrically and relatively slidingly assembled on the upper surface of the assembly block (322), and elastic elements (3232) are provided at the sliding connection between the assembly block (322) and each gripper (323); the free ends of the two grippers (323) are processed into relatively inclined slopes (3231), and the inclination angle of the slopes (3231) is adapted to the outer diameter of the steel bar (100).

4. The mobile T-beam wet joint reinforcement welding device according to claim 3, characterized in that: The slag receiving tray (5) is mounted on the frame (1) by screws, and water is pre-filled into the slag receiving tray (5).

5. The mobile T-beam wet joint reinforcement welding device according to claim 1, characterized in that: The upper part of the hopper (2) is equipped with a feeding group (4). The discharge port of the hopper (2) is integrally formed with a horizontally extending extension section one (201). The bottom surface of the extension section one (201) is designed with an inclined structure, and the inclined direction is towards the discharge direction of the hopper (2) to guide the steel bar (100) to slide smoothly. The end of the extension section one (201) is vertically connected to the extension section two (202). The lower end of the extension section two (202) is provided with a connecting plate (21).

6. The mobile T-beam wet joint reinforcement welding device according to claim 5, characterized in that: The feeding group (4) includes a transmission rod (41) and two limit plate groups (42) with the same structure. The two limit plate groups (42) are respectively installed at both ends of the top surface of the extension section (201).

7. The mobile T-beam wet joint reinforcement welding device according to claim 6, characterized in that: Each of the limiting plate groups (42) consists of a second limiting plate (421), a second wedge block (422), a first limiting plate (423), and a first wedge block (424); wherein the second limiting plate (421) and the first limiting plate (423) are arranged perpendicularly to each other, and both are slidably connected to the top surface of the extension section (201); the first limiting plate (423) is positioned in front of the second limiting plate (421) along the rolling direction of the reinforcing bar (100), in the initial In this state, the lower end of the first limiting plate (423) forms a block against the reinforcing bar (100); wedge block one (424) and wedge block two (422) are respectively fixed on the first limiting plate (423) and the second limiting plate (421), wedge block one (424) and wedge block two (422) are arranged vertically and vertically, and their opposite surfaces are relatively inclined; the second limiting plate (421) is connected to a compression spring rod; the first limiting plate (423) is connected to a tension spring rod.

8. The mobile T-beam wet joint reinforcement welding device according to claim 6, characterized in that: The two ends of the transmission rod (41) are respectively attached to the inclined surfaces of the first wedge block (424) and the second wedge block (422) in the two limiting plate groups (42). The middle position of the transmission rod (41) is connected to the output end of the electric telescopic rod (411). The axis (211) of the electric telescopic rod (411) is set at a 90-degree angle with the axis (211) of the transmission rod (41).

9. The mobile T-beam wet joint reinforcement welding device according to claim 1, characterized in that: Two sets of opposite walls of the frame (1) are respectively fixedly fitted with symmetrically distributed mounting plates (6); rigidly connected by multiple brackets (61) arranged at intervals along the horizontal direction; two second rollers (62) are symmetrically arranged at the lower ends of the two mounting plates (6); automatic calipers are installed on the second rollers (62) and the first rollers (11) preset at the bottom of the frame (1), and the automatic calipers can realize the locking and unlocking actions of the corresponding first rollers (11) and second rollers (62); an electric slide rail (63) is also fitted between the frame (1) and the two mounting plates (6).

10. The mobile T-beam wet joint reinforcement welding device according to claim 9, characterized in that: The specific actions are as follows: control the automatic clamp on the first roller (11) to lock the first roller (11) to fix the position of the frame (1); start the electric slide rail (63) to drive the two mounting plates (6) to move synchronously away from the frame (1) to form an operating space that meets the welding operation requirements; perform welding operations on the overlapping parts of multiple sets of extension bars and multiple steel bars (100) in the operating space; after the welding of a single set of extension bars and steel bars (100) is completed, control the automatic clamp on the second roller (62) to lock the second roller (62) to fix the position of the frame (1). Position of mounting plate (6); after each set of the lap joint of the extension bar and the reinforcing bar (100) is completed, unlock the automatic clamp of the first roller (11), drive the frame (1) to move a set distance closer to the mounting plate (6) through the electric slide rail (63), so that the transmission mechanism (3) on the frame (1) corresponds to the next set of extension bars to be welded; repeat the above steps of roller locking, relative displacement, and welding operation until all the welding operations of the extension bars and reinforcing bars (100) in the operating space are completed, and the frame (1) is reset to the end position of one end of the mounting plate (6).

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