A welding equipment for bridge bent cap steel reinforcement framework processing

Abstract

The present application relates to a kind of bridge bent cap reinforcement cage processing welding equipment, it includes positioning device and gantry welding device;Positioning device includes bottom plate, bottom plate is equipped with the placement plate for placing reinforcement cage, placement plate is equipped with the locking mechanism and fixed assembly for fixing reinforcement cage, the turnover mechanism for overturning placement plate, the support mechanism for supporting reinforcement cage;The upper surface before the turnover of reinforcement cage is the front of reinforcement cage, at this time also the front of placement plate, the upper surface after the turnover of reinforcement cage is the back of reinforcement cage, at this time also the back of placement plate;Each welding position corresponds a set of locking mechanism, each locking mechanism is equipped with the slot for the welding position of the back of reinforcement cage to expose, fixed assembly is used to assist fixing straight steel one and straight steel two;Gantry welding device includes gantry, three-axis module and laser welding head.The technical scheme improves the welding efficiency and welding effect of reinforcement cage.

Description

Technical Field

[0001] This invention relates to the field of steel reinforcement cage welding, and in particular to a welding equipment for processing steel reinforcement cages for bridge cap beams. Background Technology

[0002] Currently, the steel reinforcement cage used for bridge cap beams generally includes straight steel bars on both sides and bent steel bars in the middle. The contact point between the straight steel bars and the bent steel bars is the welding point, which needs to be welded for fixation.

[0003] In traditional welding processes, a U-shaped clamping block is set on the surface of the welding table. The contact position of the straight and bent steel bars is set inside the clamping block and pressed with lateral pressure. Laser welding is performed on each welding position by a gantry welding machine.

[0004] To ensure that the welding positions of the steel reinforcement cage are welded on both sides, after the welding of the upper surface is completed, the steel reinforcement cage needs to be removed from the clamping block, flipped over, and then the clamping block is used to re-lock and fix each welding position of the steel reinforcement cage before welding the flipped side.

[0005] Regarding the aforementioned related technologies, the inventors believe they have the following drawbacks:

[0006] First, when flipping the steel reinforcement cage, it is necessary to wait for the welded joints to cool down before flipping it, which takes a long time.

[0007] Secondly, the staff need to first release the fixing of each clamping block and then re-lock each clamping block, which is time-consuming and labor-intensive.

[0008] Third, during the process of workers flipping the steel bars, the newly welded welds can be affected or even damaged, thus affecting the welding effect.

[0009] Therefore, there is a need for welding equipment that can improve the welding efficiency and welding effect of steel reinforcement cages. Summary of the Invention

[0010] To solve the above-mentioned technical problems, this application provides a welding equipment for processing the steel reinforcement cage of bridge cap beams.

[0011] The welding equipment for processing the steel reinforcement cage of bridge cap beams provided in this application adopts the following technical solution:

[0012] A welding device for processing the steel reinforcement cage of a bridge cap beam includes a positioning device and a gantry welding device;

[0013] The reinforcing steel cage includes straight reinforcing bars 1 and 2 on both sides and a bent reinforcing bar in the middle. The contact positions of the straight reinforcing bars 1 and 2, the straight reinforcing bars 1 and 2 and the bent reinforcing bars 2 and 3 form welding positions.

[0014] The positioning device includes a base plate, on which a placement plate for placing a steel reinforcement cage is provided. The placement plate is provided with a locking mechanism and a fixing component for fixing the steel reinforcement cage, a flipping mechanism for flipping the placement plate, and a support mechanism for supporting the steel reinforcement cage.

[0015] The upper surface of the steel reinforcement cage before it is flipped is the front of the steel reinforcement cage, which is also the front of the placement plate at this time. The upper surface of the steel reinforcement cage after it is flipped is the back of the steel reinforcement cage, which is also the back of the placement plate at this time.

[0016] Each of the aforementioned locking mechanisms is provided with a clearance slot for exposing the welding position on the reverse side of the reinforcing steel skeleton.

[0017] With the above technical solution, the staff only needs to install it in the initial state, and then disassemble the steel reinforcement cage. After welding the front side of the steel reinforcement cage, it can be flipped 180° to weld the back side. The whole welding process is time-saving and labor-saving, and there is no need to repeatedly install the steel reinforcement cage, which greatly improves the welding efficiency of the steel reinforcement cage.

[0018] Preferably, the locking mechanism includes a first fixing block and a second fixing block, both of which are fixedly disposed in the clearance groove. The first fixing block abuts against one of the reinforcing bars, and the second fixing block is slidably provided with a clamping block, which abuts against the other reinforcing bar.

[0019] Preferably, a limiting plate is rotatably provided on the side of the abutting block corresponding to the front of the steel reinforcement cage, and a rotating rod is fixedly provided on the abutting block. The limiting plate and the rotating rod are rotatably connected. A torsion spring is provided on the rotating rod, and the torsion spring applies a force to the limiting plate to rotate away from the fixed block.

[0020] The fixing block is provided with a receiving groove for the limiting plate to be accommodated. The limiting plate rotates into the receiving groove and abuts against the front of the steel reinforcement cage.

[0021] The receiving groove is provided with a locking block for restricting the rotation of the limiting plate. The locking block is slidably disposed at both ends of the fixing block. When the limiting plate abuts against the front of the steel reinforcement cage, the locking block abuts against the limiting plate.

[0022] An auxiliary block is fixedly connected to the side wall of the locking block. The fixed block is provided with an auxiliary groove for the auxiliary block to slide. A spring is provided in the auxiliary groove. The spring applies a force to the auxiliary block to move the auxiliary block and the locking block toward the middle of the fixed block in the length direction.

[0023] The fixed block is provided with an unlocking component that drives the locking block to slide in a direction that moves away from each other.

[0024] Preferably, the unlocking assembly includes an unlocking plate, an unlocking rod, and a bidirectional cylinder. The unlocking plate is fixed to the locking block. The unlocking plate is provided with a limiting bolt. One end of the unlocking rod is provided with a strip groove for the limiting bolt to move. The fixing block is fixedly connected to the front of the placement plate through the fixing plate. The unlocking rod is rotatably connected to the fixing plate through a positioning pin. The piston rods at both ends of the bidirectional cylinder are connected to unlocking hooks. The hook-shaped part of the unlocking hook is located on the side of the unlocking rod away from the bidirectional cylinder.

[0025] The second fixed block is provided with a drive assembly for driving the first limiting plate to rotate toward the first fixed block.

[0026] Preferably, the driving assembly includes a driving cylinder and a driving rod. The driving rod pushes the limiting plate one toward the fixing block one until the limiting plate one abuts against the front of the steel reinforcement frame. The two driving rods move synchronously through a synchronization plate. The piston rod of the driving cylinder is fixedly connected to the synchronization plate.

[0027] Preferably, the side of the abutting block corresponding to the reverse side of the reinforcing steel frame is rotatably provided with a second limiting plate corresponding to the first limiting plate, the second limiting plate abutting against the reverse side of the reinforcing steel frame, and the side of the fixing block corresponding to the reverse side of the reinforcing steel frame is slidably provided with a second locking block for restricting the rotation of the second limiting plate.

[0028] Through the above technical solution, the limiting plate one and the limiting plate two work together to provide positioning, clamping and support for the steel reinforcement cage in the vertical direction. The steel reinforcement cage is positioned as a whole before welding on the front side, and after welding on the front side, the limiting plate one can resist the stress generated by welding, so as to improve the flatness of the steel reinforcement cage after welding. After the limiting plate one is located below the steel reinforcement cage, it also provides support for the steel reinforcement cage, preventing the welding position of the steel reinforcement cage from bending or even breaking.

[0029] Preferably, the flipping mechanism includes a flipping gear ring, a rotating assembly, and a supporting assembly. The flipping gear ring is fixedly connected to both ends of the placement plate along its length. The central axes of the two flipping gear rings are collinear. The central axis of the flipping gear ring is located in the middle of the width direction of the placement plate. A flipping shaft is coaxially fixedly connected to the side of the flipping gear ring away from the placement plate. The flipping shaft is rotatably connected to the base plate through a support seat. The rotating assembly is used to drive the flipping gear ring to rotate, and the supporting assembly is used to support the rotation of the flipping gear ring.

[0030] Preferably, the support mechanism includes a support plate and a lifting assembly; the support plate includes a middle plate, an extension plate, and a side plate, the extension plate is connected to the middle plate, the side plate is connected to the side of the extension plate away from the middle plate, and the lifting assembly drives the support plate to rise and fall.

[0031] Preferably, the bottom surface of the intermediate plate is provided with two mounting blocks, and a support plate is rotatably connected to each mounting block. The top end of the support plate is rotatably connected to the mounting block. The support plate includes an inclined part and a horizontal part. When the support plate rises to the point where its top surface abuts against the front of the flipped steel reinforcement skeleton, the horizontal part of the support plate abuts against the top surface of the bottom plate. The inclined parts of the two support plates are inclined in opposite directions.

[0032] Preferably, the support base is provided with a positioning cylinder on the side away from the placement plate. The piston rod of the positioning cylinder is connected to a positioning block. The flipping gear ring is provided with a positioning groove one and a positioning groove two for the positioning block to pass through. When the front of the reinforcing steel skeleton is facing up, the positioning block passes through the positioning groove one. When the back of the reinforcing steel skeleton is facing up, the positioning block passes through the positioning groove two. The side of the positioning block away from the placement plate is connected to a vertical plate. The bottom end of the vertical plate is connected to a connecting plate. A sliding rod is connected to the connecting plate. The horizontal part of the support plate is provided with a positioning hole. The sliding rod slides to be inserted into the positioning hole.

[0033] Through the above technical solution, the rotating gear ring is stably supported during the rotating process, making the rotating process very stable. After rotating, the rotating gear ring is positioned by the positioning block to prevent it from rotating again. The support plate supports the rotated steel reinforcement cage, and the support plate is locked by the sliding rod to provide a fulcrum for the support plate, improving the support plate's support capacity for the steel reinforcement cage. This prevents the middle part of the steel reinforcement cage from deflecting due to gravity, which would affect the welding accuracy of the reverse side of the steel reinforcement cage, thereby further ensuring the overall welding accuracy of the steel reinforcement cage.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] 1. After welding the front side of the steel reinforcement cage, rotate it 180° to weld the back side of the steel reinforcement cage;

[0036] 2. The overall welding process is time-saving and labor-saving, eliminating the need for repeated installation of the steel reinforcement cage, which greatly improves the welding efficiency of the steel reinforcement cage;

[0037] 3. With the cooperation of locking mechanism, fixing components and support mechanism, the steel reinforcement cage maintains the initial connection and assembly position during the flipping process without displacement, and the weld at the welding position will not be damaged. The welding effect is good and the overall structural strength of the steel reinforcement cage is high after welding. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of a welding equipment for processing the steel reinforcement skeleton of a bridge cap beam according to an embodiment of this application.

[0039] Figure 2This is a location diagram used to show the welding position and the prompt point in the embodiment of this application. The left side is the front of the steel reinforcement cage, and the right side is the back of the steel reinforcement cage.

[0040] Figure 3 This is a structural schematic diagram used to illustrate the fixed component in the embodiments of this application.

[0041] Figure 4 This is a structural schematic diagram used in the embodiments of this application to show the front of the locking mechanism and the steel reinforcement frame.

[0042] Figure 5 This is a schematic diagram illustrating the structure of locking block one in an embodiment of this application.

[0043] Figure 6 This is a structural schematic diagram used in the embodiments of this application to show the locking mechanism and the reverse side of the steel reinforcement frame.

[0044] Figure 7 This is a structural schematic diagram used to illustrate the flipping mechanism in the embodiments of this application.

[0045] Figure 8 This is a structural schematic diagram in this application embodiment used to show the positional relationship between the support plate, the steel reinforcement frame, and the clearance slot after the placement plate is flipped.

[0046] Explanation of reference numerals in the attached drawings: 1. Reinforcing steel cage; 11. Straight reinforcing bar one; 12. Straight reinforcing bar two; 13. Bent reinforcing bar; 2. Positioning device; 21. Base plate; 212. Dovetail groove; 22. Placement plate; 221. Clearance groove; 3. Gantry welding device; 31. Gantry frame; 32. Three-axis module; 321. X-direction linear module; 322. Y-direction linear module; 323. Z-direction linear module; 33. Laser welding head; 34. Camera; 35. Prompt point; 4. Locking mechanism; 41. Fixing block one; 411. Receiving groove one; 412. Locking groove one; 413. Auxiliary groove one; 414. Mounting plate one; 415. Receiving groove two; 416. Locking groove two; 417. Auxiliary groove two; 418. Mounting plate two; 419. 42. Auxiliary plate; 42. Fixing block two; 421. Rotating rod one; 422. Torsion spring one; 423. Rotating rod two; 424. Torsion spring two; 425. Magnetic sheet one; 426. Magnetic sheet two; 427. Temperature sensor; 43. Clamping block; 431. Locking bolt; 44. Limiting plate one; 441. Connecting ear plate one; 442. Iron sheet one; 443. Limiting rod one; 444. Torsion spring three; 45. Locking block one; 451. Mating wedge surface one; 452. Auxiliary block one; 453. Spring one; 46. Limiting plate two; 461. Connecting ear plate two; 462. Iron sheet two; 463. Limiting rod two; 47. Locking block two; 471. Mating wedge surface two; 472. Auxiliary block two; 473. Spring two; 48. Unlocking assembly one; 481. Unlocking 482. Locking plate 1; 482. Unlocking rod 1; 4821. Strip groove 1; 483. Double-acting cylinder 1; 484. Limit bolt 1; 485. Positioning pin 1; 486. Fixing plate 1; 487. Unlocking hook 1; 49. Unlocking assembly 2; 491. Unlocking plate 2; 492. Unlocking rod 2; 4921. Strip groove 2; 493. Double-acting cylinder 2; 494. Limit bolt 2; 495. Positioning pin 2; 496. Unlocking hook 2; 5. Fixing assembly; 51. Lower abutment plate; 511. Unit plate; 52. Upper cover plate; 521. Waist-shaped hole; 53. Connecting bolt; 54. Connecting nut; 6. Flipping mechanism; 61. Flipping gear ring; 611. Positioning groove 1; 612. Positioning groove 2; 62. Rotating assembly; 621. Drive gear; 62 2. Fixed base; 623. Rotating motor; 624. Synchronous gear one; 625. Synchronous gear two; 626. Synchronous toothed belt; 627. Rotating shaft; 63. Support assembly; 631. Driven gear; 632. Support base; 633. Support shaft; 64. Tilting shaft; 65. Support base; 7. Support mechanism; 71. Support plate; 711. Intermediate plate; 712. Extension plate; 713. Side plate; 714. Support block; 72. Lifting assembly; 721. Traction rope; 722. Rewinding wheel; 723. Limiting wheel; 724. Servo motor; 73. Mounting block; 74. Support plate; 741. Fixed ear plate; 742. Inclined part; 743. Horizontal part; 7431. Positioning hole; 7432. Contact point; 75. Positioning cylinder;76. Positioning block; 77. Vertical plate; 771. Connecting plate; 78. Slide rod; 79. Dovetail block; 8. Drive assembly; 81. Drive cylinder; 82. Drive rod; 83. Accommodation space; H1. Welding position one; H2. Welding position two; H3. Welding position three; H4. Welding position four; H5. Welding position five; H6. Welding position six; H7. Welding position seven; A1. Indication point one; A2. Indication point two; A3. Indication point three; A4. Indication point four; A5. Indication point five; A6. Indication point six; A7. Indication point seven; B1. Indication point eight; B2. Indication point nine; B3. Indication point ten; B4. Indication point eleven; B5. Indication point twelve; B6. Indication point thirteen; B7. Indication point fourteen. Detailed Implementation

[0047] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0048] This application discloses a welding device for processing the steel reinforcement skeleton of bridge cap beams.

[0049] Reference Figure 1 , 2 The welding equipment for processing the steel reinforcement cage of the bridge cap beam includes a positioning device 2 and a gantry welding device 3. The steel reinforcement cage 1 includes straight steel bars 11 and 12 on both sides and a bent steel bar 13 in the middle. Both straight steel bars 11 and 12 are C-shaped. The contact positions between straight steel bars 11 and 12, between straight steel bars 11 and 12, and between straight steel bars 11 and 12 and 13 form welding positions. The contact positions between the two ends of straight steel bars 11 and 12 and between the two ends of straight steel bars 12 form welding positions 1H1 and 7H7. The contact positions between bent steel bars 13 and straight steel bars 11 form welding positions 2H2, 4H4, and 6H6. The contact positions between bent steel bars 13 and straight steel bars 12 form welding positions 3H3 and 5H5.

[0050] Reference Figure 1 The gantry welding device 3 includes a gantry frame 31, a three-axis module 32, and a laser welding head 33. The three-axis module 32 includes an x-direction linear module 321, a y-direction linear module 322, and a z-direction linear module 323. The x-direction linear module 321 is arranged along the length of the gantry frame 31 and is installed on one side of the width of the gantry frame 31, with a guide rail on the other side. The y-direction linear module 322 is arranged along the width of the gantry frame 31, with both ends of the frame of the y-direction linear module 322 installed on the slides of the two x-direction linear modules 321 respectively. The z-direction linear module 323 is arranged along the height, with the frame of the z-direction linear module 323 installed on the slide of the y-direction linear module 322. The laser welding head 33 is installed on the slide of the z-direction linear module 323.

[0051] Reference Figure 2 When welding the front side of the steel reinforcement cage 1, the laser welding head 33 sequentially passes through welding position 1 H1, welding position 2 H2, welding position 3 H3, welding position 4 H4, welding position 5 H5, welding position 6 H6, and welding position 7 H7 and performs laser welding on the corresponding welding positions.

[0052] The positioning device 2 includes a base plate 21, on which a placement plate 22 for placing the reinforcing steel cage 1 is provided. The placement plate 22 is provided with a locking mechanism 4 and a fixing component 5 for fixing the reinforcing steel cage 1, a flipping mechanism 6 for flipping the placement plate 22, and a support mechanism 7 for supporting the reinforcing steel cage 1.

[0053] Before the reinforcing bar cage 1 is flipped over, its upper surface is the front side of the reinforcing bar cage 1, which is also the front side of the placement plate 22. After the reinforcing bar cage 1 is flipped over, its upper surface is the back side of the reinforcing bar cage 1, which is also the back side of the placement plate 22.

[0054] Each welding position corresponds to a set of locking mechanisms 4. Each locking mechanism 4 is provided with a clearance slot 221 for the welding position on the reverse side of the reinforcing bar skeleton 1 to be exposed. The fixing component 5 is used to assist in fixing the single straight reinforcing bar 11 and straight reinforcing bar 12.

[0055] Reference Figure 3 The fixing component 5 includes a lower abutment plate 51 and an upper cover plate 52. The lower abutment plate 51 includes two unit plates 511, which are fixedly connected to the placement plate 22. A single reinforcing bar is clamped between the two unit plates 511. One end of the upper cover plate 52 is rotatably connected to one unit plate 511, and the other end of the upper cover plate 52 is fixed to the other unit plate 511 by a connecting bolt 53. The upper cover plate 52 has a slotted hole 521, and the connecting bolt 53 is fixedly connected to the top surface of the corresponding unit plate 511. The connecting screw passes through the slotted hole 521 and is threaded with a connecting nut 54. During the flipping process of the reinforcing bar cage 1, the fixing component 5 provides fixed positioning for the position of the single reinforcing bar of the reinforcing bar cage 1, improving the flatness and welding accuracy of the reinforcing bar cage 1.

[0056] Reference Figure 4-6The locking mechanism 4 includes a first fixing block 41 and a second fixing block 42. Both fixing blocks 41 and 42 are fixedly installed in the clearance slot 221. The side of the first fixing block 41 closest to the second fixing block 42 abuts against the inner reinforcing bar at the corresponding welding position. The side of the second fixing block 42 closest to the first fixing block 41 has a sliding groove, in which a clamping block 43 slides. The side of the clamping block 43 closest to the first fixing block 41 abuts against the outer reinforcing bar at the corresponding welding position. A locking bolt 431 is rotatably connected to the end of the clamping block 43 away from the first fixing block 41. The end of the locking bolt 431 away from the clamping block 43 protrudes from the second fixing block 42, and the thread of the locking bolt 431 is threadedly connected to the second fixing block 42. The two reinforcing bars to be welded are positioned and fixed in the horizontal direction by the first fixing block 41 and the clamping block 43.

[0057] The side of the clamping block 43 corresponding to the front of the steel reinforcement cage 1 is provided with a limiting plate 44. The limiting plate 44 corresponds to each welding position and its length is slightly longer than the required welding length. The two ends of the limiting plate 44 are located on the outer sides of the weld at the corresponding welding position. The clamping block 43 is provided with a rotating rod 421. The two ends of the limiting plate 44 are fixedly connected with connecting ear plates 441. The connecting ear plates 441 are rotatably connected to the rotating rod 421. The connecting ear plates 441 are provided with a through hole for the rotating rod 421 to pass through. The inner peripheral wall of the through hole is provided with a limiting ring plate. The outer peripheral wall of the rotating rod 421 is provided with a limiting ring groove for the limiting ring plate to rotate. The rotating rod 421 is fixedly connected to the clamping block 43. The clamping block 43 is provided with a movable groove for the connecting ear plate 441 to move. The rotating rod 421 is provided with a torsion spring 422. One end of the torsion spring 422 is fixed to the connecting ear plate 441, and the other end of the torsion spring 422 is fixed to the clamping block 43. The torsion spring 422 applies a force to the limiting plate 44, causing the limiting plate 44 to rotate away from the fixed block 41.

[0058] The fixing block 41 is provided with a receiving groove 411 for the limiting plate 44 to be accommodated. The limiting plate 44 rotates into the receiving groove 411 and abuts against the front of the steel reinforcement cage 1.

[0059] The receiving groove 411 is provided with a locking block 45 for restricting the rotation of the limiting plate 44. The locking block 45 is slidably disposed at both ends of the fixing block 41. The two ends of the fixing block 41 are provided with locking grooves 412 for the locking block 45 to slide. When the limiting plate 44 abuts against the front of the steel reinforcement cage 1, the locking block 45 abuts against the limiting plate 44. The top surface of the locking block 45 is provided with a mating wedge surface 451. The mating wedge surface 451 is inclined in the direction away from the steel reinforcement cage 1 from the direction in which the locking blocks 45 move closer to each other and further apart. The sides of the mating wedge surface 451 are rounded. An auxiliary block 452 is fixedly connected to the side wall of the locking block 45. The fixed block 41 is provided with an auxiliary groove 413 for the auxiliary block 452 to slide. A spring 453 is provided in the auxiliary groove 413. The side wall of the fixed block 41 is provided with a mounting plate 414 for fixing the spring 453. One end of the spring 453 is fixed to the auxiliary block 452, and the other end of the spring 453 is fixed to the mounting plate 414. The spring 453 applies a force to the auxiliary block 452, causing the auxiliary block 452 and the locking block 45 to move toward the middle of the fixed block 41 in the length direction.

[0060] When installing the steel reinforcement cage 1, first rotate the limiting plate 44 to abut against the front of the steel reinforcement cage 1, and lock the limiting plate 44 with the locking block 45. This will fix the two steel bars to be welded in the vertical direction, making it less likely for the three parts of the steel reinforcement cage 1 to shift, thus improving the overall flatness and welding accuracy of the steel reinforcement cage 1.

[0061] The fixing block 41 is provided with an unlocking component 48 for driving the locking block 45 to slide in a direction away from each other until it is disengaged from the limiting plate 44. When the locking block 45 is disengaged from the limiting plate 44, the limiting plate 44 automatically rotates in a direction away from the fixing block 41 under the action of the torsion spring 422, thereby exposing the corresponding welding position for welding the front welding position of the steel reinforcement skeleton 1.

[0062] A limiting plate 46 is rotatably provided on the side of the clamping block 43 corresponding to the opposite side of the reinforcing steel cage 1. The limiting plate 46 corresponds to the limiting plate 44. A rotating rod 423 is provided on the clamping block 43. Connecting ear plates 461 are fixedly connected to both ends of the limiting plate 46. The connecting ear plates 461 are rotatably connected to the rotating rod 423. The connecting ear plates 461 are provided with a through hole 423 for the rotating rod 423 to pass through. A limiting ring plate 423 is provided on the inner peripheral wall of the through hole 423. The outer peripheral wall of the rotating rod 423 is provided with a limiting ring plate 423. The upper part is provided with a limiting ring groove for the second limiting ring plate to rotate. The second rotating rod 423 is fixedly connected to the abutting block 43. The abutting block 43 is provided with a movable groove for the second connecting ear plate 461 to move. The second rotating rod 423 is provided with a second torsion spring 424. One end of the second torsion spring 424 is fixed to the second connecting ear plate 461, and the other end of the second torsion spring 424 is fixed to the abutting block 43. The second torsion spring 424 applies a force to the second limiting plate 46, causing the second limiting plate 46 to rotate in a direction away from the first fixed block 41.

[0063] The fixing block 41 is provided with a receiving groove 415 for the limiting plate 46 to be accommodated. The limiting plate 46 rotates into the receiving groove 415 and abuts against the opposite side of the steel reinforcement cage 1.

[0064] The receiving groove 415 is provided with a locking block 47 for restricting the rotation of the limiting plate 46. The locking block 47 is slidably disposed at both ends of the fixing block 41. The two ends of the fixing block 41 are provided with locking grooves 416 for the locking block 47 to slide. When the limiting plate 46 abuts against the opposite side of the steel reinforcement cage 1, the locking block 47 abuts against the limiting plate 46. The top surface of locking block 2 47 is provided with a mating wedge surface 2 471. The mating wedge surface 2 471 is inclined in the direction away from the steel reinforcement cage 1 from the direction in which locking blocks 2 47 move closer to each other and further away from each other. The sides of the mating wedge surface 2 471 are rounded. An auxiliary block 2 472 is fixedly connected to the side wall of locking block 2 47. An auxiliary groove 2 417 for sliding auxiliary block 2 472 is provided on the fixing block 1 41. A spring 2 473 is provided in the auxiliary groove 2 417. A mounting plate 2 418 for fixing spring 2 473 is provided on the side wall of fixing block 1 41. One end of spring 2 473 is fixed to auxiliary block 2 472, and the other end of spring 2 473 is fixed to mounting plate 2 418. Spring 2 473 applies a force to auxiliary block 2 472, causing auxiliary block 2 472 and locking block 2 47 to move toward the middle of the length direction of fixing block 1 41.

[0065] When installing the steel reinforcement cage 1, first rotate the second limiting plate 46 to abut against the opposite side of the steel reinforcement cage 1, and lock the second limiting plate 46 by the second locking block 47, thereby positioning and fixing the two steel bars to be welded in the vertical direction, making it difficult for the three parts of the steel reinforcement cage 1 to shift, and improving the overall flatness and welding accuracy of the steel reinforcement cage 1.

[0066] The fixing block 41 is provided with an unlocking component 49 for driving the locking block 47 to slide in a direction away from each other until it is disengaged from the limiting plate 46. When the locking block 47 is disengaged from the limiting plate 46, the limiting plate 46 automatically rotates in a direction away from the fixing block 41 under the action of the torsion spring 424, thereby exposing the corresponding welding position for welding the reverse welding position of the steel reinforcement skeleton 1.

[0067] Unlocking component 48 includes an unlocking plate 481, an unlocking rod 482, and a two-way cylinder 483. The unlocking plate 481 is fixed to one end of the locking block 45 away from each other. The unlocking plate 481 is provided with a limiting bolt 484. One end of the unlocking rod 482 is provided with a slot 4821. The screw of the limiting bolt 484 moves within the slot 4821, and the nut of the limiting bolt 484 is in contact with the side of the unlocking rod 482 away from the unlocking plate 481. A positioning pin is provided at the middle of the unlocking rod 482 along its length, away from the fixing block 42. 485, fixing block 41 is fixedly connected to the front of placement plate 22 via fixing plate 486, unlocking rod 482 is rotatably connected to fixing plate 486 via positioning pin 485, auxiliary plate 419 is fixedly provided on the side of fixing block 41 away from fixing block 42, bidirectional cylinder 483 is installed on auxiliary plate 419, and unlocking hook 487 is connected to the piston rods at both ends of bidirectional cylinder 483. The end of unlocking hook 487 away from bidirectional cylinder 483 is hook-shaped and the hook-shaped part is located on the side of unlocking rod 482 away from bidirectional cylinder 483.

[0068] When the piston rod of the bidirectional cylinder 483 retracts, the unlocking hook 487 rotates the end of the unlocking rod 482 away from the unlocking plate 481 toward the direction closer to the bidirectional cylinder. This causes the end of the unlocking rod 482 that is in contact with the unlocking plate 481 to rotate toward the direction in which the two unlocking plates 481 move away from each other. As a result, the unlocking plate 481, along with the locking block 45, slides toward the direction in which the two unlocking plates 481 move away from each other until it is disengaged from the limiting plate 44.

[0069] When the piston rod of the two-way cylinder 483 extends, the unlocking hook 487 disengages from the unlocking rod 482. The end of the unlocking rod 482 that contacts the unlocking plate 481 rotates towards the two unlocking plates 481 in the direction of approaching each other under the action of the spring 453, and the two locking blocks 45 slide towards the direction of approaching each other.

[0070] Unlocking component 2 49 includes unlocking plate 2 491, unlocking rod 2 492, and two-way cylinder 2 493. Unlocking plate 2 491 is fixed to one end of locking block 2 47 away from each other. Unlocking plate 2 491 is provided with limiting bolt 2 494. One end of unlocking rod 2 492 is provided with a strip groove 2 4921. The screw of limiting bolt 2 494 moves within the strip groove 2 4921. The nut of limiting bolt 2 494 is in contact with the side of unlocking rod 2 492 away from unlocking plate 2 491. Unlocking... A positioning pin 495 is provided at the middle of the length of the second rod 492, away from the second fixed block 42. The second unlocking rod 492 is rotatably connected to the opposite side of the placement plate 22 through the positioning pin 495. The second bidirectional cylinder 493 is installed on the opposite side of the placement plate 22. The piston rods at both ends of the second bidirectional cylinder 493 are connected to the second unlocking hook 496. The end of the second unlocking hook 496 away from the second bidirectional cylinder 493 is hook-shaped and the hook-shaped part is located on the side of the second unlocking rod 492 away from the second bidirectional cylinder 493.

[0071] When the piston rod of the two-way cylinder 493 retracts, the unlocking hook 496 rotates the end of the unlocking rod 492 away from the unlocking plate 491 toward the direction closer to the two-way cylinder. This causes the end of the unlocking rod 492 in contact with the unlocking plate 491 to rotate toward the direction away from each other. As a result, the unlocking plate 491, along with the locking block 47, slides toward the direction away from each other until it disengages from the limiting plate 46.

[0072] When the piston rod of the two-way cylinder 493 extends, the unlocking hook 496 disengages from the unlocking rod 492. The end of the unlocking rod 492 that contacts the unlocking plate 491 rotates towards the two unlocking plates 491 in the direction of approaching each other under the action of the spring 473, and the two locking blocks 47 slide towards the direction of approaching each other.

[0073] A camera 34 is located at the bottom of the linear module 322 in the y-direction. Each welding position on the front and back of the placement plate 22 has a prompt point 35. The prompt points 35 on the front of the placement plate 22 correspond one-to-one with the seven welding positions H1, namely prompt point 35 one, prompt point 35 two, prompt point 35 three, prompt point 35 four, prompt point 35 five, prompt point 35 six, and prompt point 35 seven. The prompt points 35 on the back of the placement plate 22 also correspond one-to-one with the seven welding positions H1, namely prompt point 35 eight, prompt point 35 nine, prompt point 35 ten, prompt point 35 eleven, prompt point 35 twelve, prompt point 35 thirteen, and prompt point 35 fourteen. Along the forward direction of the laser welding head 33, the prompt points 35 are located in front of each welding position. The fourteen indicator points 35 are all different colors. The control systems of the bidirectional cylinder 1 483 and the bidirectional cylinder 2 493 are both electrically connected to the camera 34. For example, when the camera 34 captures the indicator point 35 corresponding to the front of the placement plate 22 at the welding position 1 H1, the camera 34 controls the piston rod of the bidirectional cylinder 1 483 to retract through the control system of the bidirectional cylinder 1 483, driving the unlocking plate 1 481 with the locking block 1 45 to slide in a direction away from each other until it is disengaged from the limiting plate 1 44. Under the action of the torsion spring 1 422, the limiting plate 1 44 automatically rotates in a direction away from the fixing block 1 41, so that the welding position 1 H1 is exposed.

[0074] The side of the fixing block 2 42 that corresponds to the front of the steel reinforcement frame 1 and is close to the limiting plate 1 44 is provided with an inclined surface 1. Under the action of the torsion spring 1 422, the limiting plate 1 44 rotates to abut against the inclined surface 1. A magnetic sheet 1 425 is embedded on the inclined surface 1. An iron sheet 1 442 is embedded on the side of the limiting plate 1 44 that is close to the inclined surface 1. The magnetic sheet 1 425 and the iron sheet 1 442 are magnetically attracted to each other to improve the stability of the limiting plate 1 44 on the fixing block 2 42.

[0075] The fixed block 42 is provided with a drive assembly 8 for driving the limiting plate 44 to rotate toward the fixed block 41 against the force of the torsion spring 422 and the magnetic attraction.

[0076] The side of the fixed block 42 that corresponds to the opposite side of the steel reinforcement frame 1 and is close to the limiting plate 46 has an inclined surface 2. Under the action of the torsion spring 424, the limiting plate 46 rotates to abut against the inclined surface 2. A magnetic sheet 426 is embedded in the inclined surface 2. An iron sheet 462 is embedded in the side of the limiting plate 46 that is close to the inclined surface 2. The magnetic sheet 426 and the iron sheet 462 are magnetically attracted to each other to improve the stability of the limiting plate 46 on the fixed block 42.

[0077] The drive assembly 8 includes a drive cylinder 81 and a drive rod 82. The side of the fixed block 2 42 away from the fixed block 1 41 is provided with a receiving space 83 for the drive cylinder 81 to be accommodated and a drive groove for the drive rod 82 to slide. The receiving space 83 and the drive groove are connected. The drive rod 82 corresponds one-to-one with the connecting ear plate 1 441. The drive rod 82 pushes the connecting ear plate 1 441 and pushes the limiting plate 1 44 towards the direction close to the fixed block 1 41 until the limiting plate 1 44 abuts against the front of the steel reinforcement cage 1. At this time, the drive rod 82 abuts against the side of the connecting ear plate 1 441 away from the steel reinforcement cage 1. The two drive rods 82 move synchronously through the synchronous plate. The synchronous plate moves in the receiving space 83. The two ends of the synchronous plate are fixedly connected to the drive rod 82. The drive cylinder 81 is installed in the receiving space 83. The piston rod of the drive cylinder 81 is fixedly connected to the synchronous plate.

[0078] A temperature sensor 427 is provided at the contact position between the clamping block 43 and the reinforcing bar. The temperature sensor 427 is embedded in the clamping block 43 and is electrically connected to the driving cylinder 81. A specified temperature is set for the temperature sensor 427, which is lower than the cooling temperature of the welded position. When the temperature sensor 427 detects that the temperature of the reinforcing bar has dropped to the specified temperature, the piston rod of the driving cylinder 81 extends, causing the driving rod 82 to push the connecting ear plate 441 and push the limiting plate 44 toward the fixing block 41 until the limiting plate 44 abuts against the front of the reinforcing bar skeleton 1. At this time, the driving rod 82 abuts against the side of the connecting ear plate 441 away from the reinforcing bar skeleton 1. During this process, since the top surface of the locking block 45 is provided with a mating wedge surface 451, the limiting plate 44 can push the locking block 45 to overcome the force of the spring 453 and move toward the opposite direction.

[0079] After the limiting plate 44 comes into contact with the front of the steel reinforcement cage 1, it provides further support for the welding position and resists the stress caused by the reverse welding.

[0080] A limiting rod 443 is rotatably mounted on the rotating rod 421. The limiting rod 443 has a through hole 3 through which the rotating rod 421 passes. A limiting ring plate 3 is provided on the inner peripheral wall of the through hole 3. A limiting ring groove 3 is provided on the outer peripheral wall of the rotating rod 421 for the limiting ring plate 3 to rotate. The limiting rod 443 is located at both ends of the limiting plate 44. The limiting rod 443 rotates into the receiving groove 411 and abuts against the front of the steel reinforcement cage 1. A torsion spring 444 is mounted on the rotating rod 421. One end of the torsion spring 444 is fixed to the limiting rod 443, and the other end of the torsion spring 444 is fixed to the rotating rod 421. The torsion spring 444 applies a force to the limiting rod 443, causing the limiting rod 443 to rotate toward the fixing block 41.

[0081] A limiting rod 463 is fixedly provided on the rotating rod 423. The limiting rod 463 has a through hole 4 through which the rotating rod 423 passes. A limiting ring plate 4 is provided on the inner peripheral wall of the through hole 4. A limiting ring groove 4 is provided on the outer peripheral wall of the rotating rod 423 for the limiting ring plate 4 to rotate. The limiting rod 463 is located at both ends of the limiting plate 46. The end of the limiting rod 463 away from the rotating rod 423 extends into the receiving groove 415 and is fixedly connected to the inner wall of the receiving groove 415. The limiting rod 463 abuts against the reverse side of the steel reinforcement cage 1.

[0082] By pressing the two ends of the welding position with limit rod 1 443 and limit rod 2 463, the welding position is guaranteed not to deform or shift during the flipping process, thereby improving the flatness and welding accuracy of the overall welding of the steel reinforcement cage 1.

[0083] Reference Figure 7-8 The flipping mechanism 6 includes a flipping gear ring 61, a rotating assembly 62, and a supporting assembly 63. The flipping gear ring 61 is fixedly connected to both ends of the placement plate 22 along its length. The central axes of the two flipping gear rings 61 are collinear, and the central axis of the flipping gear ring 61 is located in the middle of the width direction of the placement plate 22. A flipping shaft 64 is coaxially fixedly connected to the side of the flipping gear ring 61 away from the placement plate 22. The flipping shaft 64 is rotatably connected to the base plate 21 through a support seat 65. The rotating assembly 62 is used to drive the flipping gear ring 61 to rotate, and the supporting assembly 63 is used to support the rotation of the flipping gear ring 61.

[0084] Each of the two rotating gear rings 61 corresponds to a set of rotating components 62.

[0085] The rotating assembly 62 includes a drive gear 621, a fixed base 622, a rotating motor 623, a first synchronous gear 624, a second synchronous gear 625, and a synchronous toothed belt 626. The drive gear 621 is coaxially fixedly connected to a rotating shaft 627. The rotating shaft 627 is rotatably connected to the base plate 21 through the fixed base 622. The first synchronous gear 624 is coaxially connected to the output shaft of the rotating motor 623, and the second synchronous gear 625 is coaxially connected to the rotating shaft 627. The synchronous toothed belt 626 meshes with both the first synchronous gear 624 and the second synchronous gear 625. The drive gear 621 meshes with the outer tooth surface of the rotating gear ring 61.

[0086] The support assembly 63 includes a driven gear 631 and a support seat 632. The driven gear 631 is coaxially fixedly connected to the support shaft 633. The support shaft 633 is rotatably connected to the base plate 21 through the support seat 632. The driven gear 631 meshes with the outer tooth surface of the rotating gear ring 61.

[0087] The rotating motor 623 drives the first synchronous gear 624 to rotate, which in turn drives the second synchronous gear 625 to rotate, which in turn drives the driving gear 621 to rotate, thereby driving the rotating gear ring 61 to rotate. The driven gear 631 rotates passively, and the two rotating motors 623 drive the corresponding rotating gear ring 61 to rotate synchronously in the same direction.

[0088] The driving gear 621 and the driven gear 631 are symmetrically arranged on both sides of the radial direction of the rotating gear ring 61, so that the rotating gear ring 61 is stably supported during the rotating process, and the rotating process is very stable.

[0089] The support mechanism 7 includes a support plate 71 and a lifting assembly 72.

[0090] The support plate 71 includes a middle plate 711, an extension plate 712, and a side plate 713. The extension plate 712 is fixedly connected to the middle plate 711. The extension plate 712 is offset from the position of the clearance slot 221 after the placement plate 22 is flipped. The side plate 713 is connected to the side of the extension plate 712 away from the middle plate 711.

[0091] Each side plate 713 has a support block 714 on its bottom surface at both ends. The bottom surface of the support block 714 abuts against the top surface of the base plate 21. The bottom surface of the middle plate 711 has two mounting blocks 73. The bottom surface of the mounting blocks 73 is flush with the bottom surface of the support blocks 714.

[0092] Each mounting block 73 is rotatably connected to a support plate 74. Fixed ear plates 741 are fixedly connected to both sides of the top width direction of the support plate 74. The fixed ear plates 741 are rotatably connected to the mounting block 73. The support plate 74 includes an inclined portion 742 and a horizontal portion 743. When the support plate 71 is located on the base plate 21, the inclined portion 742 of the support plate 74 is in contact with the corresponding extension plate 712, and the horizontal portion 743 is located outside the side plate 713. The sum of the lengths of the inclined portion 742 and the fixed ear plates 741 is greater than the distance between the bottom surface of the support plate 71 and the top surface of the base plate 21. The thickness of the support plate 74 is less than the thickness of the mounting block 73. When the support plate 71 rises until its top surface abuts against the front of the flipped reinforcing steel frame 1, the horizontal portion 743 of the support plate 74 abuts against the top surface of the base plate 21. The inclined portions 742 of the two support plates 74 are inclined in opposite directions.

[0093] A positioning cylinder 75 is provided on the side of the support base 65 away from the placement plate 22. The piston rod of the positioning cylinder 75 is connected to a positioning block 76. The flipping gear ring 61 is provided with a positioning groove 1 611 and a positioning groove 2 612 for the positioning block 76 to pass through. When the front of the steel reinforcement cage 1 is facing up, the positioning block 76 is inserted into the positioning groove 1 611. When the back of the steel reinforcement cage 1 is facing up, the positioning block 76 is inserted into the positioning groove 2 612. After the flipping gear ring 61 is flipped, the positioning block 76 positions the flipping gear ring 61 to prevent the flipping gear ring 61 from rotating again, thereby improving the stability of the flipping gear ring 61 when it is not rotating.

[0094] A vertical plate 77 is fixedly connected to the side of the positioning block 76 away from the placement plate 22. The bottom surface of the vertical plate 77 is slidably connected to the base plate 21. A connecting plate 771 is fixedly connected to the bottom end of the vertical plate 77. A sliding rod 78 is connected to the connecting plate 771. The sliding rod 78 is perpendicular to the connecting plate 771. A positioning hole 7431 is provided on the horizontal part 743 of the support plate 74. The sliding rod 78 slides into the positioning hole 7431 in the direction close to the adjacent support plate 74. A dovetail block 79 is provided on the sliding rod 78. A dovetail groove 212 for the dovetail block 79 to slide is provided on the base plate 21.

[0095] The lifting assembly 72 includes a traction rope 721, a take-up reel 722, a limit wheel 723, and a servo motor 724. The limit wheel 723 is located above the support plate 71. One end of the traction rope 721 is fixedly connected to the side plate 713, and the other end of the traction rope 721 passes over the limit wheel 723 and is fixedly connected to the take-up reel 722. The servo motor 724 is coaxially connected to the take-up reel 722.

[0096] Servo motor 724 drives take-up wheel 722 to rotate, winding up traction rope 721. Traction rope 721 pulls support plate 71 upward. Support plate 71 supports the middle position of steel reinforcement cage 1 and single steel bars without fixing components 5. During the upward movement of support plate 74, support plate 74 automatically opens under the action of gravity. When support plate 71 rises to the point where its top surface abuts against the front of the flipped steel reinforcement cage 1, the horizontal part 743 of support plate 74 abuts against the top surface of base plate 21. Base plate 21 is equipped with a contact sensor, and the bottom surface of the horizontal part 743 of support plate 74 is equipped with contact points 7432 that cooperate with the contact sensor. The contact point 7432 is embedded in the horizontal part 743. The contact sensor is electrically connected to the positioning cylinder 75. When the contact sensor contacts the contact point 7432 of the horizontal part 743 of the support plate 74, the piston rod of the positioning cylinder 75 extends. When the front of the reinforcing bar skeleton 1 is facing upward, the positioning block 76 enters the positioning groove 1 611. When the back of the reinforcing bar skeleton 1 is facing upward, the positioning block 76 enters the positioning groove 2 612, keeping the flipping gear ring 61 stable. At the same time, the sliding rod 78 enters the positioning hole 7431 of the horizontal part 743 of the adjacent support plate 74, keeping the support plate 74 open and providing a certain support for the support plate 71. While the placement plate 22 remains stable, the reinforcing bar skeleton 1 is supported. After the support plate 74 is locked by the sliding rod 78, it can provide a fulcrum for the support plate 71, improving the support capacity of the support plate 71 for the reinforcing bar skeleton 1.

[0097] Before the placement plate 22 needs to be flipped again, the piston rod of the positioning cylinder 75 retracts, the positioning block 76 disengages from the support seat 65, the slide rod 78 disengages from the support plate 74, the servo motor 724 reverses, the winding wheel 722 reverses to unwind the traction rope 721, and the support plate 71 automatically descends under the action of gravity. At this time, the support plate 74 automatically rotates to fit against the extension plate 712.

[0098] The rotating gear ring 61 is stably supported during the rotating process, which is very stable. After the rotating process, the rotating gear ring 61 is positioned by the positioning block 76 to prevent the rotating gear ring 61 from rotating again. The support plate 71 supports the rotated steel cage 1. At the same time, the support plate 74 is locked by the slide rod 78, which can provide a fulcrum for the support plate 71, improve the support capacity of the support plate 71 for the steel cage 1, and prevent the middle part of the steel cage 1 from deflecting due to gravity, which would affect the welding accuracy of the reverse side of the steel cage 1, thereby further ensuring the overall welding accuracy of the steel cage 1.

[0099] The implementation principle of a welding device for processing the steel reinforcement cage of a bridge cap beam according to an embodiment of this application is as follows:

[0100] First, align the three parts of the steel reinforcement cage 1 and fix them by locking mechanism 4 and fixing component 5. At this time, limit plate 1 44, limit rod 1 443, limit plate 2 46, and limit rod 2 463 are all in contact with the steel reinforcement.

[0101] The camera 34 sequentially passes through welding positions H1, H2, H3, H4, H5, H6, and H7. When the camera 34 captures the corresponding prompt point 35 on the front of the placement plate 22 at welding position H1, the camera 34 controls the piston rod of the bidirectional cylinder 483 to retract through the control system of the bidirectional cylinder 483. This drives the unlocking plate 481, along with the locking block 45, to slide away from each other until it disengages from the limiting plate 44. Under the action of the torsion spring 422, the limiting plate 44 automatically rotates away from the fixing block 41, exposing welding position H1. Then, the laser welding head 33 moves to welding position H1 to perform welding, and so on.

[0102] After the front of the steel reinforcement cage 1 is fully welded, the positioning block 76 disengages from the positioning groove 611, the flipping mechanism 6 drives the placement plate 22 to flip 180°, and then the support plate 71 rises. The support plate 71 supports the middle position of the steel reinforcement cage 1 and the single steel bar without the fixing component 5. The horizontal part 743 of the support plate 74 abuts against the top surface of the bottom plate 21. Then the positioning block 76 is inserted into the positioning groove 612, and the sliding rod 78 is inserted into the positioning hole 7431, so that the placement plate 22 is kept stable while the steel reinforcement cage 1 is supported.

[0103] When welding the reverse side of the steel reinforcement cage 1, the laser welding head 33 sequentially passes through welding position 7 H7, welding position 6 H6, welding position 5 H5, welding position 4 H4, welding position 3 H3, welding position 2 H2, and welding position 1 H1. When the camera 34 captures the corresponding prompt point 35 on the reverse side of the placement plate 22 at welding position 7 H7, the camera 34 controls the piston rod of the bidirectional cylinder 2 493 to retract through the control system of the bidirectional cylinder 2 493, driving the unlocking plate 2 491 to slide with the locking block 2 47 in a direction away from each other until it disengages from the limiting plate 2 46. Under the action of the torsion spring 2 424, the limiting plate 2 46 automatically rotates in a direction away from the fixing block 1 41, exposing welding position 7 H7. Then, the laser welding head 33 moves to welding position 7 H7 to weld welding position 7 H7, and so on.

[0104] After the reverse side of the steel reinforcement cage 1 is completely welded, the positioning block 76 disengages from the positioning groove 612, the sliding rod 78 disengages from the positioning hole 7431, the support plate 71 descends, the flipping mechanism 6 drives the placement plate 22 to flip 180°, the positioning block 76 disengages from the positioning groove 611, and finally the staff manually opens the positioning block 76, then opens the limiting plate 44 and the limiting rod 443, and takes out the double-sided welded steel reinforcement cage 1.

[0105] After welding the front side of the steel reinforcement cage 1, it can be flipped 180° to weld the back side. The overall welding process is time-saving and labor-saving, and there is no need to repeatedly install the steel reinforcement cage 1, which greatly improves the welding efficiency of the steel reinforcement cage 1. With the cooperation of the locking mechanism 4, the fixing component 5, and the support mechanism 7, the steel reinforcement cage 1 maintains its initial connection and assembly position during the flipping process without displacement or other issues. The weld at the welding position will not be damaged, resulting in good welding effect and high structural strength after the overall welding of the steel reinforcement cage 1.

[0106] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A welding equipment for processing the reinforcing steel cage of a bridge cap beam, characterized in that: Includes positioning devices and gantry welding devices; The reinforcing steel cage includes straight reinforcing bars 1 and 2 on both sides and a bent reinforcing bar in the middle. The contact positions of the straight reinforcing bars 1 and 2, the straight reinforcing bars 1 and 2 and the bent reinforcing bars 2 and 3 form welding positions. The positioning device includes a base plate, on which a placement plate for placing a steel reinforcement cage is provided. The placement plate is provided with a locking mechanism and a fixing component for fixing the steel reinforcement cage, a flipping mechanism for flipping the placement plate, and a support mechanism for supporting the steel reinforcement cage. The upper surface of the steel reinforcement cage before it is flipped is the front of the steel reinforcement cage, which is also the front of the placement plate at this time. The upper surface of the steel reinforcement cage after it is flipped is the back of the steel reinforcement cage, which is also the back of the placement plate at this time. Each of the aforementioned locking mechanisms is provided with a clearance slot for exposing the welding position on the reverse side of the reinforcing steel frame; The locking mechanism includes a first fixing block and a second fixing block. Both the first fixing block and the second fixing block are fixedly installed in the clearance groove. The first fixing block abuts against one of the steel bars, and the second fixing block has a sliding abutting block that abuts against the other steel bar. The side of the abutment block corresponding to the front of the steel reinforcement frame is provided with a limiting plate. A rotating rod is fixed on the abutment block. The limiting plate and the rotating rod are rotatably connected. A torsion spring is provided on the rotating rod. The torsion spring applies a force to the limiting plate to rotate away from the fixed block. The fixing block is provided with a receiving groove for the limiting plate to be accommodated. The limiting plate rotates into the receiving groove and abuts against the front of the steel reinforcement cage. The receiving groove is provided with a locking block for restricting the rotation of the limiting plate. The locking block is slidably disposed at both ends of the fixing block. When the limiting plate abuts against the front of the steel reinforcement cage, the locking block abuts against the limiting plate. An auxiliary block is fixedly connected to the side wall of the locking block. The fixed block is provided with an auxiliary groove for the auxiliary block to slide. A spring is provided in the auxiliary groove. The spring applies a force to the auxiliary block to move the auxiliary block and the locking block toward the middle of the fixed block in the length direction. The fixed block is provided with an unlocking component that drives the locking block to slide in a direction that moves away from each other; The unlocking assembly includes an unlocking plate, an unlocking rod, and a bidirectional cylinder. The unlocking plate is fixed to a locking block. A limiting bolt is provided on the unlocking plate. One end of the unlocking rod is provided with a slot for the limiting bolt to move. The fixing block is fixedly connected to the front of the placement plate through the fixing plate. The unlocking rod is rotatably connected to the fixing plate through a positioning pin. The piston rods at both ends of the bidirectional cylinder are connected to unlocking hooks. The hook-shaped part of the unlocking hook is located on the side of the unlocking rod away from the bidirectional cylinder. The side of the clamping block corresponding to the reverse side of the reinforcing steel frame is rotatably provided with a second limiting plate corresponding to the first limiting plate. The second limiting plate abuts against the reverse side of the reinforcing steel frame. The side of the fixing block corresponding to the reverse side of the reinforcing steel frame is slidably provided with a second locking block for restricting the rotation of the second limiting plate. The first fixed block is provided with an unlocking component two for driving the second locking block to slide in a direction away from each other until it is disengaged from the second limiting plate; The second unlocking component includes a second unlocking plate, a second unlocking rod, and a second bidirectional cylinder. The second unlocking plate is fixed at one end away from the second locking block. The second unlocking plate is provided with a second limiting bolt. One end of the second unlocking rod is provided with a second strip groove. The screw of the second limiting bolt moves within the second strip groove. The nut of the second limiting bolt is in contact with the side of the second unlocking rod away from the second unlocking plate. The second unlocking rod is provided with a second positioning pin at the middle of its length away from the second fixing block. The second unlocking rod is rotatably connected to the opposite side of the placement plate through the second positioning pin. The second bidirectional cylinder is installed on the opposite side of the placement plate. The piston rods at both ends of the second bidirectional cylinder are connected to second unlocking hooks. The end of the second unlocking hook away from the second bidirectional cylinder is hook-shaped, and the hook-shaped part is located on the side of the second unlocking rod away from the second bidirectional cylinder. The second fixed block is provided with a drive assembly for driving the first limiting plate to rotate toward the direction of the first fixed block; The drive assembly includes a drive cylinder and a drive rod. The drive rod pushes the limiting plate one toward the fixed block one until the limiting plate one abuts against the front of the steel reinforcement skeleton. The two drive rods move synchronously through a synchronization plate. The piston rod of the drive cylinder is fixedly connected to the synchronization plate. A temperature sensor is provided at the position where the clamping block contacts the reinforcing bar. The temperature sensor is electrically connected to the driving cylinder. When the temperature sensor detects that the temperature of the reinforcing bar has dropped to a specified temperature, the piston rod of the driving cylinder extends, causing the driving rod to push the limiting plate one toward the direction of the fixing block one until the limiting plate one abuts against the front of the reinforcing bar skeleton.

2. The welding equipment for processing the reinforcing steel cage of bridge cap beams according to claim 1, characterized in that: The flipping mechanism includes a flipping gear ring, a rotating assembly, and a supporting assembly. The flipping gear ring is fixedly connected to both ends of the placement plate along its length. The central axes of the two flipping gear rings are collinear. The central axis of the flipping gear ring is located in the middle of the width direction of the placement plate. A flipping shaft is coaxially fixedly connected to the side of the flipping gear ring away from the placement plate. The flipping shaft is rotatably connected to the base plate through a support seat. The rotating assembly is used to drive the flipping gear ring to rotate, and the supporting assembly is used to support the rotation of the flipping gear ring.

3. The welding equipment for processing the reinforcing steel cage of bridge cap beams according to claim 2, characterized in that: The support mechanism includes a support plate and a lifting assembly; the support plate includes a middle plate, an extension plate, and a side plate, the extension plate is connected to the middle plate, the side plate is connected to the side of the extension plate away from the middle plate, and the lifting assembly drives the support plate to rise and fall.

4. The welding equipment for processing the reinforcing steel cage of bridge cap beams according to claim 3, characterized in that: The bottom surface of the intermediate plate is provided with two mounting blocks, and a support plate is rotatably connected to each mounting block. The top of the support plate is rotatably connected to the mounting block. The support plate includes an inclined part and a horizontal part. When the support plate rises to the point where its top surface abuts against the front of the flipped steel reinforcement skeleton, the horizontal part of the support plate abuts against the top surface of the bottom plate. The inclined parts of the two support plates are inclined in opposite directions.

5. The welding equipment for processing the reinforcing steel cage of bridge cap beams according to claim 4, characterized in that: A positioning cylinder is provided on the side of the support base away from the placement plate. The piston rod of the positioning cylinder is connected to a positioning block. The flipping gear ring is provided with a positioning groove one and a positioning groove two for the positioning block to pass through. When the front of the steel reinforcement skeleton is facing up, the positioning block passes through the positioning groove one. When the back of the steel reinforcement skeleton is facing up, the positioning block passes through the positioning groove two. A vertical plate is connected to the side of the positioning block away from the placement plate. A connecting plate is connected to the bottom of the vertical plate. A sliding rod is connected to the connecting plate. A positioning hole is provided on the horizontal part of the support plate. The sliding rod slides to be inserted into the positioning hole.

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