Reinforcement cage internal welding equipment for bridge construction

Abstract

The invention relates to the technical field of reinforcement cage welding, in particular to reinforcement cage internal welding equipment for bridge construction. The rotary supporting units are arranged on the outer sides of the two ends of the base and connected with the base; the stirrup limiting unit is arranged between the rotary supporting units on the two sides, is in sliding connection with the base and is connected with the rotary supporting units; the welding unit is connected with the stirrup limiting unit; wherein the rotary supporting unit comprises a fixing base, a cooperative control assembly, a positioning installation assembly and a locking assembly, the rotary supporting unit is arranged and matched with the stirrup limiting unit, the diameter of a reinforcement cage to be welded can be adjusted, full connection between reinforcements and stirrups can be achieved in the welding process, synchronous rotation between the reinforcements and the stirrups can be achieved in the welding process, and the welding efficiency is improved. And therefore, the joints of the steel bars and the stirrups are kept fully stable during welding, the welding quality is effectively guaranteed, and the welding efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of steel cage welding technology, specifically to a steel cage welding device for bridge construction. Background Technology

[0002] Reinforcing cage welding is a crucial step in the construction of pile foundations for bridges, buildings, and other engineering projects. Through techniques such as resistance welding and arc welding, longitudinal main bars are firmly connected to transverse stirrups and spiral bars to form a reinforcing steel skeleton with high load-bearing capacity. During construction, the reinforcing bars are first precisely positioned according to the design spacing using a CNC forming machine. Rotary resistance welding equipment is then used to achieve circumferential welding of the spiral bars to the main bars, or arc welding is used to fix the intersections.

[0003] When welding steel cages, multiple longitudinal reinforcing bars need to be welded together with multiple ring stirrups. During the welding process, because the contact between the stirrups and the longitudinal reinforcing bars is not limited, the contact between the longitudinal reinforcing bars and the stirrups is unstable. During welding, it is easy to have incomplete welds between the stirrups and the longitudinal reinforcing bars, resulting in poor welding effect of the steel cage. Therefore, in view of the above situation, it is urgent to develop a steel cage welding equipment for bridge construction to overcome the shortcomings in current practical applications. Summary of the Invention

[0004] The purpose of this invention is to provide a welding device for steel cages used in bridge construction, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A welding device for steel reinforcement cages used in bridge construction includes: a base; a rotating support unit, which is disposed on the outer sides of both ends of the base and connected to the base, for cooperating with the base to provide equidistant annular support for multiple steel reinforcements and to synchronously lock each steel reinforcement; a stirrup limiting unit, which is disposed between the two rotating support units, slidably connected to the base, and connected to the rotating support units, for cooperating with the base to limit and fix the stirrups surrounding the outside of the steel reinforcements, and for cooperating with the rotating support units to achieve synchronous rotation of the steel reinforcements and stirrups; and a welding unit, which is connected to the stirrup limiting unit and is used to cooperate with the steel reinforcements and stirrups in welding. Synchronous rotation enables automated welding. The rotating support unit includes a fixed base, a control component, a positioning and installation component, and a locking component. The fixed bases are symmetrically arranged at the top of both ends of the base and are fixedly connected to the base. Both fixed bases have circular openings for the steel bars to pass through. Each fixed base has a positioning and installation component for supporting the steel bars at one opposite end. The positioning and installation component has a locking component for synchronously locking each steel bar. A control component is located inside one fixed base. The control component is connected to the positioning and installation component on the same side and to the stirrup limiting unit to achieve synchronous rotation of the fixed steel bars and stirrups.

[0007] As a further embodiment of the present invention: the positioning and installation assembly includes: a support plate, a take-up and release tube, a sub-control cavity, a support tube, a locking frame, a sensing piston, a fixing rod, a prism, and a control assembly. The support plate is rotatably connected to the fixing seat and is coaxially arranged with the annular opening. Several sub-control cavities are arranged in annular shape at equal intervals on the inner side of the support plate. The sub-control cavities are connected to the control assembly arranged on the inner side of the fixing seat. Each sub-control cavity is provided with a take-up and release tube fixedly connected to the support plate on its outer side. The take-up and release tube has an L-shaped structure, with one end connected to the sub-control cavity and a sensing piston slidably arranged on the inner side of the other end. A fixing rod is fixedly arranged on the outer side of the sensing piston. A support tube is fixedly arranged on the outer side of the other end of the fixing rod. A locking frame is arranged on the inner side of the support tube. A prism is fixedly arranged on the outer side of the locking frame. The prism is slidably connected to the fixing rod. A spring is fixedly arranged between the fixing rod and the prism. The locking frame is connected to the locking assembly and is used to cooperate with the support tube to lock the reinforcing bar.

[0008] As a further embodiment of the present invention: the control component includes: a drive frame, a drive control tube, a drive control unit, a telescopic controller, an annular guide groove, and a connecting slider. The drive frame is disposed inside the fixed base and connected to the fixed base through the telescopic controller. Each sub-control cavity is provided with a drive control tube between itself and the drive frame. The drive control tube is fixedly connected to the support plate. One end is connected to the sub-control cavity, and a drive control unit is slidably disposed inside the other end. A connecting slider is fixedly disposed outside the other end of the drive control unit. The connecting slider is slidably connected to the annular guide groove disposed on the wall of the drive frame.

[0009] As a further embodiment of the present invention: the co-control component includes: a rotary motor, a drive rod, a transmission rod, and a cooperating bar. The rotary motor is fixedly mounted inside a fixed base on one side, and its output end is fixedly connected to the drive rod. The transmission rod is rotatably mounted inside the base, and the transmission rod and the drive rod are connected through a first transmission component. A cooperating bar is fixedly mounted on the outside of the transmission rod and is connected to the stirrup limiting unit through the cooperating bar, which is used to cooperate with the drive rod to drive the stirrup limiting unit. The drive rod is connected to the support plate on the same side through a second transmission component.

[0010] As a further embodiment of the present invention: the locking assembly includes: a retraction controller, a ring control frame, a sliding frame, a fixed frame, an adjustment block, and a connecting rod. The ring control frame is disposed on the outside of the support plate and is connected to the support plate through the retraction controller. The adjustment block is slidably connected to the wall of the support tube. A connecting rod is provided between the adjustment block and the locking frame. One end of the connecting rod is rotatably connected to the adjustment block, and the other end is rotatably connected to the locking frame. A sliding frame is fixedly disposed on the outside of the adjustment block, and a fixed frame is slidably disposed on the outside of the sliding frame and fixedly connected to the ring control frame.

[0011] As a further embodiment of the present invention: the stirrup limiting unit includes: a sliding seat, an adjusting seat, a synchronous rotation component, a stirrup fixing component, and a control component. The sliding seat is disposed between two fixed seats on both sides. An adjusting seat is fixedly disposed on the outer side of the bottom end of the sliding seat. The adjusting seat is slidably connected to the base. The adjusting seat is threadedly connected to a threaded rod disposed on the inner side of the base. One end of the threaded rod is fixedly connected to the output end of a servo motor. The servo motor is fixedly disposed on the inner side of the base. Stirrup fixing components are symmetrically disposed on the inner side of the sliding seat. The stirrup fixing components are rotatably connected to the sliding seat and connected to the transmission rod through the synchronous rotation component. Both stirrup fixing components on both sides are connected to the control component disposed on the inner side of the sliding seat.

[0012] As a further embodiment of the present invention: the stirrup fixing assembly includes: an annular disc, a connecting pipe, an L-shaped support pipe, an adjusting component, a clamping plate, a connecting cavity, and a piston pipe. The annular disc is rotatably connected to the shell walls on both sides of the sliding seat. The annular disc is rotatably connected to the sliding seat. A connecting pipe is rotatably provided on both ends of the shell walls of the annular disc. Both ends of the connecting pipe are connected to the connecting cavity provided on the inner side of the annular disc. The connecting cavity is connected to the piston pipe fixedly provided on the annular disc. The piston pipe is arranged opposite to the adjusting component. An L-shaped support pipe is fixedly provided on the pipe wall of the connecting pipe. An adjusting component is slidably provided on the inner side of the other end of the L-shaped support pipe. The other end of the adjusting component is fixedly connected to the clamping plate.

[0013] As a further embodiment of the present invention: the control assembly includes: a control frame, a directional block, a guide plate, an adjusting motor, a bidirectional screw, a cooperating block, a cooperating groove, a slide rod, a gear seat, a positioning plate, and a control frame. The control frame is symmetrically arranged between two annular disks. The adjusting motor is fixedly arranged inside the sliding seat. The output end of the adjusting motor is fixedly connected to the bidirectional screw. The bidirectional screw is threadedly connected to the control frames on both sides. A control frame is arranged between the control frame and the annular disk on the same side. A guide plate is symmetrically arranged on the outer side of the control frame. The guide plate is slidably connected to the directional block fixedly arranged on the annular disk. A cooperating groove is arranged on the frame wall of the control frame. A cooperating block fixedly connected to the control frame is slidably arranged inside the cooperating groove. A slide rod is fixedly arranged on the outer side of the control frame. A gear seat is slidably arranged on the outer side of the slide rod. A strong spring is fixedly arranged between the gear seat and the control frame. The gear seat meshes with a gear fixedly arranged outside the connecting pipe and is slidably connected to the positioning plate fixedly arranged on the annular disk. Several piston parts corresponding to the piston tube are also fixedly arranged on the control frame.

[0014] As a further aspect of the present invention: the synchronous rotation assembly includes: a sleeve rod, which is sleeved on the outside of the transmission rod and rotatably connected to the sliding seat. The inner wall of the sleeve rod is provided with a cooperating groove that is slidably connected to the cooperating strip. The sleeve rod is connected to both annular disks on both sides through a third transmission component, which is used to cooperate with the transmission rod to realize the synchronous rotation of the support disk and the annular disk.

[0015] As a further embodiment of the present invention: the welding unit includes a welding box, a lifting controller and a welding torch. The welding box is fixedly installed on the outer side of the top of the sliding seat, and the lifting controller is fixedly installed on the inner side of the welding box. The other end of the lifting controller is fixedly connected to the welding torch. The welding torch is installed between the two annular discs to cooperate with the rotation of the annular discs to realize the automatic welding of the connection between each steel bar and the stirrup.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The positioning and installation components are adjusted to change the diameter of the rebar cage. The rebar is then passed through one side of the positioning and installation components, and stirrups are fitted over the outside of the rebar. The rebar is then connected to the positioning and installation components on the other side. A locking component, in conjunction with the positioning and installation components, locks both ends of the rebar. A stirrup limiting unit moves the stirrups to adjust their position. Subsequently, the stirrup limiting unit locks the stirrups. A welding unit welds the connection between the stirrups and the rebar. A control component drives the positioning and installation components to rotate the rebar. The control component also synchronously drives the stirrup limiting unit, allowing the stirrups and rebars to rotate synchronously. This ensures stable connection between the stirrups and rebars by the welding unit and prevents welding defects during the process. The displacement ensures the accuracy and reliability of the welding. Subsequently, the stirrup limiting unit continues to limit the remaining stirrups and cooperates with the welding unit to weld. After the steel cage is welded, the locking of the steel cage is released, the steel bars are separated from the positioning and installation components, and the positioning and installation components are retracted. The welded steel cage is then pulled out from the circular opening on the fixed seat for subsequent processing. This application, by setting a rotating support unit in conjunction with the stirrup limiting unit, can adjust the diameter of the steel cage to be welded. It can also achieve full connection between the steel bars and stirrups during welding and synchronous rotation of the steel bars and stirrups during welding. This ensures that the connection between each steel bar and stirrup remains sufficiently stable during welding, effectively guaranteeing the welding quality and greatly improving the welding efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the welding equipment inside the steel reinforcement cage used in bridge construction.

[0019] Figure 2 This is a structural schematic diagram of the rotating support unit in the welding equipment inside the steel cage used in bridge construction.

[0020] Figure 3 This is a cross-sectional view of the rotating support unit in the welding equipment inside the steel cage used in bridge construction.

[0021] Figure 4 This is a structural diagram of the positioning and installation components in the welding equipment inside the steel cage used in bridge construction.

[0022] Figure 5 This is a cross-sectional view of the support plate in the welding equipment inside the steel cage used in bridge construction.

[0023] Figure 6 This is a partial structural diagram of the locking component in the welding equipment inside the steel cage used in bridge construction.

[0024] Figure 7 for Figure 6 A magnified structural diagram of point A in the middle.

[0025] Figure 8 This is a structural schematic diagram of the stirrup limiting unit in the welding equipment inside the steel cage used in bridge construction.

[0026] Figure 9 This is a sectional view of the stirrup limiting unit in the welding equipment inside the steel cage used in bridge construction.

[0027] Figure 10 This is a structural schematic diagram of the stirrup fixing assembly in the welding equipment inside the steel cage used in bridge construction.

[0028] Figure 11 This is a sectional view of the stirrup fixing assembly in the welding equipment inside the steel cage used in bridge construction.

[0029] Figure 12 for Figure 11 A magnified structural diagram at point B in the middle.

[0030] Figure 13 This is a cross-sectional view of the annular disc in the welding equipment inside the steel cage used in bridge construction.

[0031] Figure 14 This is a schematic diagram of the transmission and control frame in the welding equipment inside the steel cage used in bridge construction.

[0032] In the diagram: 1. Base; 2. Rotary support unit; 3. Stirrup limiting unit; 4. Fixed seat; 5. Co-control component; 6. Positioning and mounting component; 7. Locking component; 8. Rotary motor; 9. Drive rod; 10. Transmission rod; 11. Co-operating bar; 12. Support plate; 13. Retraction and extension controller; 14. Circular control frame; 15. Drive frame; 16. Drive control tube; 17. Drive control device; 18. Telescopic controller; 19. Circular guide groove; 20. Connecting slider; 21. Retraction and extension tube; 22. Sub-control cavity; 23. Support tube; 24. Locking frame; 25. Sensing piston; 26. Fixed rod; 27. Prism; 28. Sliding element. 29. Frame; 30. Fixed frame; 31. Control block; 32. Connecting rod; 33. Sliding seat; 34. Adjusting seat; 35. Sleeve rod; 36. Welding unit; 37. Annular disc; 38. Transmission and control frame; 39. Connecting pipe; 40. Orientation block; 41. Guide plate; 42. Welding box; 43. Lifting controller; 44. Welding torch; 45. Adjusting motor; 46. Bidirectional screw; 47. Coordinating block; 48. Coordinating slide; 49. Slide rod; 50. Gear seat; 51. Positioning plate; 52. L-shaped support tube; 53. Adjusting component; 54. Clamping plate; 55. Connecting cavity; 56. Piston tube; 57. Piston component; 58. Guide frame. Detailed Implementation

[0033] The technical solution of this application will be further described in detail below with reference to specific embodiments.

[0034] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0035] Please see Figure 1 , Figure 2 and Figure 3 In one embodiment of the present invention, a welding device for a steel cage used in bridge construction includes: a base 1; a rotating support unit 2, which is disposed on the outer sides of both ends of the base 1 and connected to the base 1, for cooperating with the base 1 to complete the annular equidistant support of multiple steel bars and to complete the synchronous locking of each steel bar; a stirrup limiting unit 3, which is disposed between the two rotating support units 2, slidably connected to the base 1 and connected to the rotating support unit 2, for cooperating with the base 1 to limit and fix the stirrups surrounding the outside of the steel bars, and for cooperating with the rotating support unit 2 to realize the synchronous rotation of the steel bars and stirrups; and a welding unit 35, which is connected to the stirrup limiting unit 3 and is used to cooperate with the base 1 to limit and fix the stirrups surrounding the outside of the steel bars, and to achieve the synchronous rotation of the steel bars and stirrups; and a welding unit 35, which is connected to the stirrup limiting unit 3 and is used to cooperate with the base 1 to complete the annular equidistant support of multiple steel bars and to complete the synchronous locking of each steel bar; and a welding unit 35, which is connected to the stirrup limiting unit 3 and is used to cooperate with the base 1 to complete the annular equidistant support of multiple steel bars and to complete the synchronous locking of each steel bar; and a welding unit 35, which is connected to the stirrup limiting unit 3 and is used to cooperate with the base 1 to complete the annular equidistant support of multiple steel bars and to complete the synchronous locking of each steel bar and stirrup ... The synchronous rotation of the reinforcing bars and stirrups enables automated welding. The rotating support unit 2 includes a fixed base 4, a control component 5, a positioning and installation component 6, and a locking component 7. The fixed base 4 is symmetrically arranged at the top of both ends of the base 1 and is fixedly connected to the base 1. Both fixed bases 4 have circular openings for the reinforcing bars to pass through. Both fixed bases 4 have positioning and installation components 6 for supporting the reinforcing bars at opposite ends. The positioning and installation components 6 are equipped with locking components 7 to lock the reinforcing bars synchronously. The control component 5 is located inside one fixed base 4. The control component 5 is connected to the positioning and installation component 6 on the same side and to the stirrup limiting unit 3 to achieve synchronous rotation of the fixed reinforcing bars and stirrups.

[0036] In this embodiment, during device operation, the positioning and installation component 6 is adjusted to adjust the diameter of the reinforcing cage. The reinforcing bar is passed through the positioning and installation component 6 on one side, and the stirrup is fitted onto the outside of the reinforcing bar. The reinforcing bar is then connected to the positioning and installation component 6 on the other side. The locking component 7, in conjunction with the positioning and installation component 6, locks both ends of the reinforcing bar. The stirrup limiting unit 3 moves the stirrup to adjust its position. Subsequently, the stirrup limiting unit 3 locks the stirrup. The welding unit 35 welds the connection between the stirrup and the reinforcing bar. The co-control component 5 drives the positioning and installation component 6 to rotate the reinforcing bar. The co-control component 5 can also synchronously drive the stirrup limiting unit 3, enabling the stirrup and reinforcing bar to rotate synchronously. This allows the welding unit 35 to stably reconnect the stirrup and each reinforcing bar, and prevents the stirrup from being pulled into place. During welding, the reinforcing bars shift, ensuring the accuracy and reliability of the welding. Subsequently, the stirrup limiting unit 3 continues to limit the remaining stirrups and cooperates with the welding unit 35 for welding. After the reinforcing cage is welded, the locking of the reinforcing cage is released, the reinforcing bars are separated from the positioning and installation component 6, and the positioning and installation component 6 is retracted. The welded reinforcing cage is then pulled out from the circular opening on the fixed seat 4 for subsequent processing. This application, by setting a rotating support unit 2 in conjunction with the stirrup limiting unit 3, can adjust the diameter of the reinforcing cage to be welded. It can also achieve full connection between the reinforcing bars and stirrups during welding and synchronous rotation of the reinforcing bars and stirrups during welding. This ensures that the connection between each reinforcing bar and stirrup remains sufficiently stable during welding, effectively guaranteeing the quality of the welding and greatly improving the welding efficiency.

[0037] In one embodiment of the present invention, please refer to Figure 3 , Figure 5 and Figure 6 The positioning and mounting assembly 6 includes: a support plate 12, a take-up and release tube 21, a sub-control cavity 22, a support tube 23, a locking frame 24, a sensing piston 25, a fixing rod 26, a prism 27, and a control assembly. The support plate 12 is rotatably connected to the fixed base 4 and is coaxially arranged with the annular opening. A plurality of sub-control cavities 22 are arranged in an annular shape at equal intervals on the inner side of the support plate 12. The sub-control cavities 22 are connected to the control assembly arranged on the inner side of the fixed base 4. Each sub-control cavity 22 is provided with a take-up and release tube 21 fixedly connected to the support plate 12 on its outer side. It has an L-shaped structure, with one end connected to the control cavity 22, and a sensing piston 25 slidably installed on the inner side of the other end. A fixing rod 26 is fixedly installed on the outer side of the sensing piston 25. A support tube 23 is fixedly installed on the outer side of the other end of the fixing rod 26. A locking frame 24 is installed on the inner side of the support tube 23. A prism 27 is fixedly installed on the outer side of the locking frame 24. The prism 27 is slidably connected to the fixing rod 26. A spring is fixedly installed between the fixing rod 26 and the prism 27. The locking frame 24 is connected to the locking assembly 7 and is used to cooperate with the support tube 23 to lock the steel bar.

[0038] In this embodiment, the control component can drive the air inside each sub-control chamber 22 to enter the corresponding take-up and release tube 21, drive the sensing piston 25 to move, the sensing piston 25 drives the fixed rod 26 to move, the fixed rod 26 drives the support tube 23 to move, and each support tube 23 is synchronously taken up and released, thereby completing the adjustment of the installation diameter, so that the equipment can be adapted to the needs of different sized steel cages. The locking component 7 can drive the locking frame 24 to move, and the prism 27 guides the lifting and lowering of the locking frame 24. The locking frame 24 cooperates with the support tube 23 to complete the clamping and locking of the steel bar. The locking frame 24 is tilted at both ends, thereby completing the limit of the steel bar during the clamping process, ensuring the accuracy and stability of the steel bar during clamping. By setting the positioning installation component 6, the two ends of the steel bar can be positioned and supported, and the support position can be adjusted, so that the equipment can be adapted to the welding of steel cages of different sizes, greatly improving the applicability and flexibility of the equipment. By taking up and releasing the position of the steel bar, the stirrup can be kept tightly connected to the steel bar, thereby ensuring the effectiveness and reliability of subsequent welding.

[0039] In one embodiment of the present invention, please refer to Figure 4 The control components include: a drive frame 15, a drive control tube 16, a drive control device 17, a telescopic controller 18, an annular guide groove 19, and a connecting slider 20. The drive frame 15 is disposed inside the fixed base 4 and connected to the fixed base 4 through the telescopic controller 18. Each sub-control cavity 22 is provided with a drive control tube 16 between itself and the drive frame 15. The drive control tube 16 is fixedly connected to the support plate 12, with one end connected to the sub-control cavity 22 and the drive control device 17 slidably disposed inside the other end. The connecting slider 20 is fixedly disposed outside the other end of the drive control device 17 and is slidably connected to the annular guide groove 19 disposed on the wall of the drive frame 15.

[0040] In this embodiment, the drive control 17 includes a first piston slidably disposed inside the drive control tube 16 and a first push rod fixedly connected to the first piston. The other end of the first push rod is also fixedly connected to the connecting slider 20. The connecting slider 20 is disc-shaped and slidably connected to the two side walls of the annular guide groove 19. The telescopic controller 18 is an electric push rod. The telescopic controller 18 controls the movement of the drive frame 15. The drive frame 15, in conjunction with the connecting slider 20, drives the drive control 17 to move inside the drive control tube 16, synchronously driving the air inside each sub-control cavity 22 to flow in equal amounts, thereby realizing the expansion and contraction of the support tube 23. When the support plate 12 rotates, the support plate 12 will drive the drive control tube 16 to rotate synchronously, and the drive control tube 16 will drive the drive control 17 to move synchronously. The connecting slider 20 slides inside the annular guide groove 19, so that the steel bar can still be stably fixed when rotating, ensuring the stability of the steel bar during welding, thereby ensuring the welding quality.

[0041] In one embodiment of the present invention, please refer to Figure 2 and Figure 3 The co-control component 5 includes: a rotary motor 8, a drive rod 9, a transmission rod 10, and a cooperating bar 11. The rotary motor 8 is fixedly installed inside the fixed base 4 on one side, and the output end of the rotary motor 8 is fixedly connected to the drive rod 9. The transmission rod 10 is rotatably installed inside the base 1, and the transmission rod 10 and the drive rod 9 are connected through a first transmission component. A cooperating bar 11 is fixedly installed on the outside of the transmission rod 10 and is connected to the stirrup limiting unit 3 through the cooperating bar 11, which is used to cooperate with the drive rod 9 to drive the stirrup limiting unit 3. The drive rod 9 is connected to the support plate 12 on the same side through a second transmission component.

[0042] In this embodiment, the first transmission component includes a first pulley fixedly disposed on the outside of the drive rod 9 and the transmission rod 10, and a first belt for connecting the first pulley. The second transmission component includes a second pulley fixedly disposed on the outside of the drive rod 9 and the support plate 12, and a second belt for connecting the second pulley. The rotary motor 8 drives the drive rod 9 to rotate, and the drive rod 9 drives the support plate 12 to rotate through the second pulley and the second belt. The support plate 12 drives the reinforcing bar to rotate. At the same time, the drive rod 9 drives the transmission rod 10 to rotate through the first pulley and the first belt. The transmission rod 10 completes the air guiding of the stirrup limiting unit 3, realizing the synchronous rotation of the stirrup and the reinforcing bar, thereby facilitating the welding unit 35 to perform automated and comprehensive welding of the connection between the stirrup and the reinforcing bar, greatly improving the welding efficiency.

[0043] In one embodiment of the present invention, please refer to Figure 3 , Figure 6 and Figure 7 The locking assembly 7 includes: a retraction controller 13, a ring-shaped control frame 14, a sliding frame 28, a fixed frame 29, an adjustment block 30, and a connecting rod 31. The ring-shaped control frame 14 is disposed on the outside of the support plate 12 and is connected to the support plate 12 through the retraction controller 13. The adjustment block 30 is slidably connected to the wall of the support tube 23. A connecting rod 31 is provided between the adjustment block 30 and the locking frame 24. One end of the connecting rod 31 is rotatably connected to the adjustment block 30, and the other end is rotatably connected to the locking frame 24. A sliding frame 28 is fixedly disposed on the outside of the adjustment block 30, and a fixed frame 29, which is fixedly connected to the ring-shaped control frame 14, is slidably disposed on the outside of the sliding frame 28.

[0044] In this embodiment, the take-up and release controller 13 is an electric push rod. The take-up and release controller 13 can realize the movement of the ring control frame 14. In addition, each support tube 23 has a sliding adjustment block 30. When the rebar is placed inside the support tube 23, the take-up and release controller 13 drives the ring control frame 14 to move. The ring control frame 14 drives the adjustment block 30 to move synchronously through the fixed frame 29 and the sliding frame 28. The adjustment block 30, through the connecting rod 31 and the prism 27, realizes the lifting and lowering of the locking frame 24. The locking frame 24, together with the support tube 23, completes the clamping and locking of the rebar, ensuring the stability and reliability of the rebar after installation. By setting the locking component 7, it can work with the positioning installation component 6 to lock each rebar synchronously, and work with the support tube 23 to position the rebar, effectively ensuring the accuracy of the position of each rebar during welding, thereby ensuring the welding effect.

[0045] In one embodiment of the present invention, please refer to Figure 1 and Figure 8 The stirrup limiting unit 3 includes: a sliding seat 32, an adjusting seat 33, a synchronous rotation component, a stirrup fixing component, and a control component. The sliding seat 32 is disposed between two fixed seats 4 on both sides. An adjusting seat 33 is fixedly disposed on the outer side of the bottom end of the sliding seat 32. The adjusting seat 33 is slidably connected to the base 1. The adjusting seat 33 is threadedly connected to a threaded rod disposed on the inner side of the base 1. One end of the threaded rod is fixedly connected to the output end of a servo motor. The servo motor is fixedly disposed on the inner side of the base 1. Stirrup fixing components are symmetrically disposed on the inner side of the sliding seat 32. The stirrup fixing components are rotatably connected to the sliding seat 32 and connected to the transmission rod 10 through the synchronous rotation component. Both stirrup fixing components on both sides are connected to the control component disposed on the inner side of the sliding seat 32.

[0046] In this embodiment, the servo motor enables the rotation of the threaded rod, which, in conjunction with the adjusting seat 33, moves the sliding seat 32. The sliding seat 32 then drives the stirrup fixing assembly to move. Before movement, the adjusting component drives the stirrup fixing assembly to clamp the stirrup, and the position of the stirrup is adjusted in conjunction with the movement of the sliding seat 32, ensuring that the stirrup accurately falls into the welding position. When the support plate 12 drives the reinforcing bar to rotate, the transmission rod 10, in conjunction with the synchronous rotation component, enables the stirrup fixing assembly to rotate synchronously, thereby ensuring that the stirrup and reinforcing bar rotate synchronously and maintain consistent linear speed, thus preventing misalignment at the connection between the stirrup and the reinforcing bar. This allows the welding unit 35 to precisely complete the welding at the connection between the stirrup and the reinforcing bar. After the stirrup is welded, the stirrup fixing component releases the stirrup and, in conjunction with the movement of the sliding seat 32, adjusts the position of the remaining stirrups in sequence, thus completing the precise and continuous welding of the stirrups, greatly improving the welding quality. By setting the stirrup limiting unit 3, the position of the stirrup can be locked during the welding process, and it can work with the rotating support unit 2 to achieve synchronous rotation of the stirrup and the reinforcing bar, thereby keeping the longitudinal reinforcing bar stable when it contacts the stirrup for welding. During welding, it is easy to avoid false welds between the stirrup and the longitudinal reinforcing bar, greatly improving the welding effect of the reinforcing cage.

[0047] In one embodiment of the present invention, please refer to Figure 9 , Figure 10 , Figure 11 and Figure 12 The stirrup fixing assembly includes: annular disc 36, connecting pipe 38, L-shaped support pipe 51, adjusting component 52, clamping plate 53, connecting cavity 54, and piston pipe 55. The annular disc 36 is rotatably connected to the two side shell walls of the sliding seat 32. The annular disc 36 and the sliding seat 32 are rotatably connected. Connecting pipes 38 are rotatably arranged on both ends of the shell walls of the annular disc 36. Both ends of the connecting pipe 38 are connected to the connecting cavity 54 arranged inside the annular disc 36. The connecting cavity 54 is connected to the piston pipe 55 fixedly arranged on the annular disc 36. The piston pipe 55 is arranged opposite to the adjusting component. The L-shaped support pipe 51 is fixedly arranged on the pipe wall of the connecting pipe 38. The adjusting component 52 is slidably arranged on the inner side of the other end of the L-shaped support pipe 51. The other end of the adjusting component 52 is fixedly connected to the clamping plate 53.

[0048] In this embodiment, the adjusting component 52 includes a second piston slidably disposed inside the L-shaped support tube 51 and a second push rod fixedly connected to the second piston. The other end of the second push rod is fixedly connected to the clamping plate 53. A directional groove is provided on the rod wall of the second push rod. The directional groove is slidably connected to the directional plate fixedly disposed inside the L-shaped support tube 51. The adjusting component drives the connecting tube 38 to rotate, so that the clamping plates 53 on both sides are positioned opposite to the stirrups. Subsequently, the adjusting component can drive the adjusting component 52 to move inside the L-shaped support tube 51. The adjusting component 52 drives the clamping plate 53 to move. The relative movement of the clamping plates 53 on both sides completes the clamping and fixing of the stirrups, ensuring the stability of the stirrups during processing. In addition, the synchronous rotation component can cooperate with the transmission rod 10 to realize the synchronous rotation of the annular disk 36. The annular disk 36 drives the clamping plate 53 to rotate synchronously through the connecting tube 38, thereby realizing the synchronous rotation of the reinforcing bars and stirrups, thus avoiding displacement of the stirrups and reinforcing bars during welding, which would lead to incomplete welding, and ensuring the effectiveness and quality of welding.

[0049] In one embodiment of the present invention, please refer to the figures. Figure 9 , Figure 10 , Figure 12 and Figure 14 The control assembly includes: a control frame 37, a directional block 39, a guide plate 40, an adjusting motor 44, a bidirectional screw 45, a cooperating block 46, a cooperating slide 47, a slide rod 48, a gear seat 49, a positioning plate 50, and a control frame 57. The control frame 57 is symmetrically arranged between the two annular disks 36. The adjusting motor 44 is fixedly arranged inside the sliding seat 32. The output end of the adjusting motor 44 is fixedly connected to the bidirectional screw 45. The bidirectional screw 45 is threadedly connected to the two control frames 57. A control frame 37 is arranged between the control frame 57 and the annular disk 36 on the same side. Guide plates 40 are symmetrically arranged on the outer side of the control frame 37. The transmission frame 37 is slidably connected to the directional block 39 fixedly mounted on the annular disk 36. The transmission frame 37 is provided with a cooperative slide groove 47. The cooperative block 46, which is fixedly connected to the guide frame 57, is slidably mounted on the inner side of the cooperative slide groove 47. The transmission frame 37 is fixedly mounted with a slide rod 48. The slide rod 48 is slidably mounted with a gear seat 49. A strong spring is fixedly mounted between the gear seat 49 and the transmission frame 37. The gear seat 49 is meshed with a gear fixedly mounted on the outer side of the connecting pipe 38 and is slidably connected to the positioning plate 50 fixedly mounted on the annular disk 36. Several piston parts 56 corresponding to the piston tube 55 are also fixedly mounted on the transmission frame 37.

[0050] In this embodiment, the piston component 56 includes a third push rod fixedly disposed on the outside of the transmission control frame 37 and a third piston fixedly connected to the third push rod. The third piston is disposed opposite to the piston tube 55, and the outer diameter of the third piston is equal to the inner diameter of the piston tube 55. The adjusting motor 44 drives the bidirectional screw 45 to rotate, and the bidirectional screw 45 drives the two guide control frames 57 to move synchronously in opposite directions. The guide control frame 57 drives the transmission control frame 37 to move through the coordinating block 46. The guide plate 40, in conjunction with the directional block 39, guides the movement of the transmission control frame 37 and realizes the synchronous rotation of the transmission control frame 37 and the annular disk 36. The transmission control frame 37 drives the gear seat. The gear seat 49 moves, and the gear 49, in conjunction with the gear, rotates the connecting pipe 38. The positioning plate 50 positions the gear seat 49 so that the clamping plates 53 on both sides are aligned with the stirrup. Subsequently, the transmission control frame 37 continues to move, driving the piston 56 to insert into the inside of the piston tube 55, driving the air inside the connecting cavity 54 into the inside of the connecting pipe 38, thereby locking the clamping plate 53 onto the stirrup. By setting the control component, the method of rotating first and then clamping ensures both the convenience of placing the stirrup on the steel bar and the limitation and locking of the stirrup, ensuring the stability and reliability of the stirrup and the steel bar during welding, and effectively guaranteeing the welding quality.

[0051] In one embodiment of the present invention, please refer to Figure 9 The synchronous rotation assembly includes: a sleeve rod 34, which is sleeved on the outside of the transmission rod 10 and rotatably connected to the sliding seat 32. The inner wall of the sleeve rod 34 is provided with a cooperating groove that is slidably connected to the cooperating strip 11. The sleeve rod 34 is connected to the two annular disks 36 on both sides through a third transmission component, which is used to cooperate with the transmission rod 10 to realize the synchronous rotation of the support disk 12 and the annular disk 36.

[0052] In this embodiment, the third transmission component includes a third pulley fixedly disposed on the outside of the sleeve rod 34 and the annular disc 36, and a belt for connecting the third pulley. The third pulley disposed on the outside of the sleeve rod 34 has the same wheel diameter as the second pulley disposed on the outside of the drive rod 9, and the third pulley disposed on the outside of the annular disc 36 has the same wheel diameter as the second pulley disposed on the outside of the support disc 12. This allows the support disc 12 and the annular disc 36 to rotate synchronously, thereby achieving synchronous rotation of the reinforcing bars and stirrups, effectively avoiding problems such as incomplete welding.

[0053] In one embodiment of the present invention, please refer to Figure 1 and Figure 9 The welding unit 35 includes a welding box 41, a lifting controller 42, and a welding torch 43. The welding box 41 is fixedly installed on the outer side of the top of the sliding seat 32. The lifting controller 42 is fixedly installed on the inner side of the welding box 41. The other end of the lifting controller 42 is fixedly connected to the welding torch 43. The welding torch 43 is installed between the two annular discs 36 and is used to cooperate with the rotation of the annular discs 36 to realize the automatic welding of the connection between the steel bars and the stirrups.

[0054] In this embodiment, the lifting controller 42 is an electric push rod. After the steel bars and stirrups are locked, the lifting controller 42 drives the welding torch 43 to move downward. In conjunction with the rotation of the support plate 12 and the annular plate 36, the welding of each steel bar and stirrup connection is completed in sequence, which greatly improves the welding efficiency and ensures the welding effect.

[0055] The welding equipment for the steel cage used in bridge construction uses a telescopic controller 18 to control the movement of the drive frame 15. The drive frame 15, in conjunction with the connecting slider 20, drives the drive control 17 to move inside the drive control tube 16, synchronously driving the air inside each sub-control chamber 22 to flow in equal amounts, driving the induction piston 25 to move. The induction piston 25 drives the fixed rod 26 to move, and the fixed rod 26 drives the support tube 23 to move. Each support tube 23 moves synchronously, thereby completing the adjustment of the installation diameter, so that the equipment can be adapted to the needs of steel cages of different sizes. The steel bar is passed through one side support tube 23, and the stirrup is sleeved on the outside of the steel bar, connecting the steel bar to the support tube 23 on the other side. The retraction controller 13 drives the annular control frame 14 to move. The annular control frame 14 drives the control block 30 to move synchronously through the fixed frame 29 and the sliding frame 28. The control block 30, in conjunction with the prism 27 through the connecting rod 31, realizes the lifting and lowering of the locking frame 24. The locking frame 24, in conjunction with the support tube 23, completes the clamping and locking of the steel bar.

[0056] The servo motor can rotate the threaded rod, which can move the sliding seat 32 in conjunction with the adjusting seat 33. The adjusting motor 44 drives the bidirectional screw 45 to rotate, and the bidirectional screw 45 drives the two guide frames 57 to move synchronously in opposite directions. The guide frame 57 drives the transmission frame 37 to move through the coordinating block 46. The guide plate 40 guides the movement of the transmission frame 37 in conjunction with the directional block 39, and realizes the synchronous rotation of the transmission frame 37 and the annular disk 36. The transmission frame 37 drives the gear seat 49 to move, and the gear seat 49 works with the gear to realize the rotation of the connecting pipe 38. The positioning plate 50 positions the gear seat 49 so that the two clamping plates 53 are directly opposite the stirrup. Then, the transmission frame 37 continues to move, driving the piston 56 to insert into the inside of the piston tube 55, driving the air inside the connecting cavity 54 to enter the inside of the connecting pipe 38. The adjusting component 52 drives the clamping plate 53 to move, and the two clamping plates 53 move relative to each other to complete the clamping and fixing of the stirrup.

[0057] The rotary motor 8 drives the drive rod 9 to rotate. The drive rod 9 drives the support plate 12 to rotate via the second pulley and the second belt. The support plate 12 drives the steel bar to rotate. At the same time, the drive rod 9 drives the transmission rod 10 to rotate via the first pulley and the first belt. The transmission rod 10 drives the sleeve rod 34 to rotate. The sleeve rod 34 drives the annular disc 36 to rotate via the third pulley and the third belt. The support plate 12 and the annular disc 36 rotate synchronously, thereby realizing the synchronous rotation of the steel bar and the stirrup.

[0058] The lifting controller 42 drives the welding torch 43 to move downwards, and in conjunction with the rotation of the support plate 12 and the annular plate 36, the welding of each steel bar and stirrup connection is completed in sequence. After the steel cage is welded, the locking of the steel cage is released, the steel bars are separated from the support pipe 23 and the support pipe 23 is retracted, and the welded steel cage is pulled out from the circular opening on the fixed seat 4.

[0059] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these should also be considered within the scope of protection of the present invention. These will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A welding device for steel cages used in bridge construction, characterized in that, include: Base; A rotating support unit is provided on the outer sides of both ends of the base and connected to the base. It is used to cooperate with the base to provide circumferential equidistant support for multiple steel bars and to lock each steel bar synchronously. The stirrup limiting unit is disposed between the two rotating support units, slidably connected to the base, and connected to the rotating support unit. It is used to cooperate with the base to limit and fix the stirrups surrounding the outside of the steel bar, and to cooperate with the rotating support unit to realize the synchronous rotation of the steel bar and the stirrups. A welding unit, which is connected to a stirrup limiting unit, is used to coordinate the synchronous rotation of the reinforcing bars and stirrups to achieve automated welding. The rotating support unit includes: a fixed base, a control component, a positioning and installation component, and a locking component. The fixed bases are symmetrically arranged at the top of both ends of the base and are fixedly connected to the base. Both fixed bases on both sides are provided with circular openings for the steel bars to pass through. On the opposite end of both fixed bases on both sides, there are positioning and installation components for supporting the steel bars. The positioning and installation components are provided with locking components to complete the synchronous locking of each steel bar. A control component is provided on the inner side of one fixed base. The control component is connected to the positioning and installation component on the same side and to the stirrup limiting unit to realize the synchronous rotation of the fixed steel bars and stirrups.

2. The welding equipment for steel cages used in bridge construction according to claim 1, characterized in that, The positioning and installation assembly includes: a support plate, a take-up and release tube, a sub-control cavity, a support tube, a locking frame, a sensing piston, a fixing rod, a prism, and a control assembly. The support plate is rotatably connected to the fixing seat and is coaxially arranged with the annular opening. Several sub-control cavities are arranged in annular shape at equal intervals on the inner side of the support plate. The sub-control cavities are connected to the control assembly located on the inner side of the fixing seat. Each sub-control cavity is provided with a take-up and release tube fixedly connected to the support plate on its outer side. The take-up and release tube has an L-shaped structure, with one end connected to the sub-control cavity and a sensing piston slidably arranged on the inner side of the other end. A fixing rod is fixedly arranged on the outer side of the sensing piston. A support tube is fixedly arranged on the outer side of the other end of the fixing rod. A locking frame is arranged on the inner side of the support tube. A prism is fixedly arranged on the outer side of the locking frame. The prism is slidably connected to the fixing rod. A spring is fixedly arranged between the fixing rod and the prism. The locking frame is connected to the locking assembly and is used to cooperate with the support tube to lock the reinforcing bar.

3. The welding equipment for steel cages used in bridge construction according to claim 2, characterized in that, The control assembly includes: a drive frame, a drive control tube, a drive control unit, a telescopic controller, an annular guide groove, and a connecting slider. The drive frame is located inside the fixed base and is connected to the fixed base through the telescopic controller. Each sub-control cavity is provided with a drive control tube between itself and the drive frame. The drive control tube is fixedly connected to the support plate, with one end connected to the sub-control cavity and the drive control unit slidably arranged inside the other end. The connecting slider is fixedly arranged outside the other end of the drive control unit and is slidably connected to the annular guide groove provided on the wall of the drive frame.

4. The welding equipment for steel cages used in bridge construction according to claim 3, characterized in that, The co-control component includes a rotary motor, a drive rod, a transmission rod, and a cooperating bar. The rotary motor is fixedly mounted inside a fixed base on one side, and its output end is fixedly connected to the drive rod. The transmission rod is rotatably mounted inside the base, and the transmission rod and the drive rod are connected through a first transmission component. A cooperating bar is fixedly mounted on the outside of the transmission rod and connected to a stirrup limiting unit through the cooperating bar, which is used to cooperate with the drive rod to drive the stirrup limiting unit. The drive rod is connected to a support plate on the same side through a second transmission component.

5. The welding equipment for steel cages used in bridge construction according to claim 4, characterized in that, The locking assembly includes: a retraction controller, a ring-shaped control frame, a sliding frame, a fixed frame, an adjusting block, and a connecting rod. The ring-shaped control frame is located on the outside of the support plate and is connected to the support plate through the retraction controller. The adjusting block is slidably connected to the wall of the support tube. A connecting rod is provided between the adjusting block and the locking frame. One end of the connecting rod is rotatably connected to the adjusting block, and the other end is rotatably connected to the locking frame. A sliding frame is fixedly provided on the outside of the adjusting block, and a fixed frame is slidably provided on the outside of the sliding frame and fixedly connected to the ring-shaped control frame.

6. The welding equipment for steel cages used in bridge construction according to claim 4, characterized in that, The stirrup limiting unit includes: a sliding seat, an adjusting seat, a synchronous rotation component, a stirrup fixing component, and a control component. The sliding seat is disposed between two fixed seats on both sides. An adjusting seat is fixedly disposed on the outer side of the bottom of the sliding seat. The adjusting seat is slidably connected to the base. The adjusting seat is threadedly connected to a threaded rod disposed on the inner side of the base. One end of the threaded rod is fixedly connected to the output end of a servo motor. The servo motor is fixedly disposed on the inner side of the base. Stirrup fixing components are symmetrically disposed on the inner side of the sliding seat. The stirrup fixing components are rotatably connected to the sliding seat and connected to the transmission rod through the synchronous rotation component. Both stirrup fixing components on both sides are connected to the control component disposed on the inner side of the sliding seat.

7. The welding equipment for steel cages used in bridge construction according to claim 6, characterized in that, The stirrup fixing assembly includes: an annular disc, a connecting pipe, an L-shaped support pipe, an adjusting component, a clamping plate, a connecting cavity, and a piston pipe. The annular disc is rotatably connected to the two side shell walls of the sliding seat. The annular disc is rotatably connected to the sliding seat. A connecting pipe is rotatably installed on both ends of the shell wall of the annular disc. Both ends of the connecting pipe are connected to the connecting cavity located inside the annular disc. The connecting cavity is connected to the piston pipe fixedly installed on the annular disc. The piston pipe is arranged opposite to the adjusting component. An L-shaped support pipe is fixedly installed on the wall of the connecting pipe. An adjusting component is slidably installed on the inner side of the other end of the L-shaped support pipe. The other end of the adjusting component is fixedly connected to the clamping plate.

8. The welding equipment for steel cages used in bridge construction according to claim 7, characterized in that, The control assembly includes: a control frame, a directional block, a guide plate, an adjusting motor, a bidirectional screw, a cooperating block, a cooperating groove, a slide rod, a gear seat, a positioning plate, and a control frame. The control frame is symmetrically arranged between two annular discs. The adjusting motor is fixedly mounted inside the sliding seat, and its output end is fixedly connected to the bidirectional screw. The bidirectional screw is threadedly connected to the control frames on both sides. A control frame is arranged between the control frame and the annular disc on the same side. Guide plates are symmetrically arranged on the outer side of the control frame. The guide plates are slidably connected to the directional blocks fixedly mounted on the annular disc. A cooperating groove is provided on the wall of the control frame. A cooperating block fixedly connected to the control frame is slidably arranged inside the cooperating groove. A slide rod is fixedly arranged on the outer side of the control frame. A gear seat is slidably arranged on the outer side of the slide rod. A strong spring is fixedly arranged between the gear seat and the control frame. The gear seat meshes with a gear fixedly arranged outside the connecting pipe and is slidably connected to the positioning plate fixedly mounted on the annular disc. Several piston parts corresponding to the piston tube are also fixedly arranged on the control frame.

9. The welding equipment for steel cages used in bridge construction according to claim 8, characterized in that, The synchronous rotation assembly includes: a sleeve rod, which is sleeved on the outside of the transmission rod and rotatably connected to the sliding seat. The inner wall of the sleeve rod is provided with a cooperating groove that is slidably connected to the cooperating strip. The sleeve rod is connected to both annular disks through a third transmission component, which is used to cooperate with the transmission rod to realize the synchronous rotation of the support disk and the annular disk.

10. The welding equipment for steel cages used in bridge construction according to claim 9, characterized in that, The welding unit includes a welding box, a lifting controller, and a welding torch. The welding box is fixedly installed on the outer side of the top of the sliding seat, and the lifting controller is fixedly installed on the inner side of the welding box. The other end of the lifting controller is fixedly connected to the welding torch. The welding torch is installed between the two annular discs to cooperate with the rotation of the annular discs to realize the automatic welding of the connection between each steel bar and the stirrup.

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