An adaptive welding device for bridge

Abstract

The invention discloses an adaptive welding device for a bridge frame, belonging to the technical field of bridge frame welding equipment. An electric cylinder is provided at the bottom of a plate of the invention, a rack is provided on the telescopic shaft of the electric cylinder, the rack is slidably arranged at the bottom of the plate, and a plurality of clamping devices are provided on the plate; the clamping device comprises a gear, the gear and the rack form a gear meshing, the gear is fixedly arranged on a rotating rod, the rotating rod is rotatably arranged at the bottom of the plate, one end of a brake plate is fixedly arranged on the side of the rack, the other end of the brake plate is used to clamp a slide plate, the slide plate is slidably arranged on the plate, the square shaft end of an adjusting screw seat is slidably arranged on the rotating rod, the adjusting screw seat is rotatably arranged on the slide plate, and the slide plates of the plurality of clamping devices are connected by connecting plates; each group of clamping devices comprises two groups of wall clamping devices, the wall clamping devices clamp the side of the bridge frame, and the position of the adjusting slide plate in the plate can be adjusted, so that the distance between the two side plates can be adjusted to adapt to bridge frames of different widths.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge welding equipment, and in particular relates to an adaptive welding equipment for a bridge. Background Art

[0002] Cable bridges are widely used in industry, especially when laying cables in buildings and structures, which requires a large number of cable bridges. The cable bridge is composed of two side plates and a bottom plate. Multiple sets of bottom plates are welded between the two side plates. The manual welding method is time-consuming and labor-intensive, and the two side plates are easily tilted.

[0003] In the prior art, the Chinese invention patent with application number CN202310562777.6 discloses a cable tray welding device, in which a magnetic card block is provided on the positioning plate, and the magnetic card block drives the positioning plate to rotate into the positioning groove, and the positioning plate fits the surface of the bridge, and the bridge is transported to the welding area, thereby achieving a positioning effect. However, the device cannot adjust the distance between the two side plates of the bridge, and the welding gun cannot automatically adapt to the width of the bridge. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide an adaptive welding device for a bridge.

[0005] The technical solution adopted to solve the above technical problems is: an adaptive welding device for a bridge frame, including a flat plate, the flat plate is used to place the bridge frame, the bridge frame includes two side plates and multiple groups of bottom plates, the bottom plate is placed between the two side plates, and the side plates and the bottom plates are welded and connected, characterized in that: an electric cylinder is provided at the bottom of the flat plate, a rack is provided on the telescopic shaft of the electric cylinder, the rack is slidably arranged at the bottom of the flat plate, and multiple groups of clamping devices are provided on the flat plate; the clamping device includes a gear, the gear and the rack form a gear meshing, the gear is fixedly arranged on a rotating rod, the rotating rod is rotatably arranged at the bottom of the flat plate, one end of the brake plate is fixedly arranged on the side of the rack, and the other end of the brake plate is used to clamp the slide plate, the slide plate is slidably arranged on the flat plate, and the square shaft end of the adjusting screw seat is slidably arranged on the rotating rod , the adjusting screw seat is rotatably arranged on the slide plate, and the slide plates of the multiple clamping devices are connected by connecting plates; each clamping device includes two sets of wall clamping devices, and the wall clamping device includes a power slide bar, one end of the power slide bar is provided with a screw rod, the other end of the power slide bar is provided with a sliding roller, one end of the electric cylinder is provided with a rotating plate groove, the rotating plate groove forms a sliding fit with the sliding roller, and one end of the rotating plate is provided with a clamping block, and the clamping block and the side clamping plate are used to clamp the side plate; the power slide bar of the left wall clamping device is slidably arranged at the bottom of the flat plate, the screw rod forms a threaded fit with the rotating rod, the rotating plate is rotatably arranged on the flat plate, and the side clamping plate is fixedly arranged on the flat plate; the power slide bar of the right wall clamping device is slidably arranged at the bottom of the slide plate, the screw rod forms a threaded fit with the adjusting screw seat, the rotating plate is rotatably arranged on the slide plate, and the side clamping plate is fixedly arranged on the slide plate. The clamping block includes a lower clamping bar and an upper clamping bar, the lower clamping bar is used to clamp the bottom surface of the side plate, and the upper clamping bar is used to clamp the side surface of the side plate.

[0006] Furthermore, a slide seat is provided on the flat plate, a slide is slidably arranged on the slide seat, the slide and the screw rod form a threaded fit, the screw rod is rotatably arranged on two support plates, the screw rod is connected to the rotating shaft of the motor, and the motor is fixed on one support plate.

[0007] Furthermore, three electric cylinders 2 are arranged on the slide, and welding plates are arranged on the telescopic shafts of the electric cylinders 2.

[0008] Furthermore, a slide plate is vertically provided on the side of the welding plate, a roller frame is slidably provided on the slide plate, a roller is provided at the bottom of the roller frame, two ends of the spring are respectively connected to the slide plate and the roller frame, a slide groove is provided on the lever, and the slide groove of the lever is slidably connected with the upper end boss of the roller frame and the upper end boss of the middle support plate in turn, the middle support plate is fixedly and vertically arranged on the slide plate, the end of the lever is rotatably arranged on the lower pressure strip, the lower pressure strip is slidably arranged on the welding plate, a left groove plate is fixedly provided on the left side of the lower pressure strip, and the left groove plate is connected to the left inclined sliding block The boss forms a sliding fit, the left oblique sliding block is slidably arranged on the left oblique sliding seat, and the left oblique sliding seat is obliquely fixed on the welding plate; a right groove plate is slidably arranged on the right side of the lower pressure strip, and the sliding groove of the right groove plate forms a sliding fit with the boss of the right oblique sliding block, the right oblique sliding block is slidably arranged on the right oblique sliding seat, the inclination angles of the right oblique sliding seat and the left oblique sliding seat are consistent and symmetrical, a smooth plate is provided on the upper end of the right oblique sliding seat, the smooth plate is slidably arranged on the welding plate, and the smooth plate forms a sliding fit with the sliding groove of the vertical groove plate, and the vertical groove plate is fixedly arranged on the right groove plate.

[0009] Furthermore, welding guns are provided at the bottom of the left inclined sliding block and the right inclined sliding block, and the welding guns are used to weld the welds between the side plates and the bottom plate.

[0010] Furthermore, a grinding head is provided at the bottom of the electric cylinder 1 and the right inclined sliding block plate, and the grinding head is used for grinding the weld.

[0011] Furthermore, the top block is used for slidingly being arranged in the welding plate, the two ends of the tension spring are respectively connected with the top block and the welding plate, and the top block is used for clamping the smooth plate.

[0012] Furthermore, a loose push rod is provided at the end of the flat plate, which is used to push the push block to separate the push block and the flat slide plate. The insertion rod is fixed on the slide plate of the first group of clamping devices, and the insertion rod is used to be inserted into the slide groove of the vertical groove plate.

[0013] The beneficial effects of the present invention are as follows: (1) The present invention adopts two sets of wall clamping devices to clamp the side of the bridge frame, and the position of the sliding plate in the flat plate can be adjusted, so that the distance between the two side plates can be adjusted to adapt to bridge frames of different widths; (2) The present invention adopts a loose push rod to transmit power, so that the position of the smooth plate in the welding plate can be adjusted, and the vertical slot plate and the right slot plate also move with the smooth plate, so that the distance between the left inclined slide seat and the right inclined slide seat can be adjusted, and the distance between the two welding guns during work can also be adjusted, so that the welding gun can be automatically aligned with the weld; (3) The welding gun and the grinding head of the present invention are away from the side plate during the descending process to avoid scratching the side plate and also avoid damage to the welding gun and the grinding head; (4) The present invention adopts a lower pressure strip to drive the left slot plate and the right slot plate to move downward synchronously, so that the left inclined slide plate moves obliquely downward along the left inclined slide seat, and the right inclined slide plate moves obliquely downward along the right inclined slide seat, so that the welding gun automatically approaches the weld between the side plate and the bottom plate, so that the welding gun and the grinding head automatically adapt to bridge frames of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0015] Figure 2 It is a schematic diagram of the overall bottom structure of the present invention.

[0016] Figure 3 It is a schematic diagram of the structure of the clamping device of the present invention.

[0017] Figure 4 It is a schematic diagram of the structure of the rotating plate and the clamping block of the present invention.

[0018] Figure 5 It is a schematic diagram of the structure of the power slide rod, screw rod and slide roller of the present invention.

[0019] Figure 6 It is a schematic diagram of the installation structure of the roller frame of the present invention.

[0020] Figure 7 It is a schematic diagram of the structure of the welding gun and the grinding head of the present invention.

[0021] Figure 8 It is a schematic diagram of the structure of the smooth plate and the top block of the present invention.

[0022] Fig. 9 It is a schematic diagram of the installation structure of the loose top rod and the plug rod of the present invention.

[0023] Figure numerals: 1-plate; 2-bridge; 201-side plate; 202-bottom plate; 3-electric cylinder 1; 4-rack; 5-gear; 6-rotating rod; 7-brake plate; 8-slide plate; 9-adjusting screw seat; 10-power slide rod; 11-screw rod; 12-slide roller; 13-rotating plate; 131-rotating plate groove; 14-clamping block; 141-lower clamping strip; 142-upper clamping strip; 15-side clamping plate; 16-slide groove seat; 17-motor; 18-support plate; 19-screw rod; 20-slide; 2 1-electric cylinder 2; 22-welding plate; 23-slide plate; 24-roller frame; 25-roller; 26-spring; 27-lever; 28-middle support plate; 29-lower pressure strip; 30-left slot plate; 31-left inclined slider; 32-left inclined slide; 33-welding gun; 34-grinding head; 35-right slot plate; 36-right inclined slider; 37-right inclined slide; 38-smooth plate; 39-vertical slot plate; 40-top block; 41-tension spring; 42-loose top rod; 43-insertion rod; 44-connecting plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] like Figures 1 to 9As shown, an adaptive welding device for a bridge frame in this embodiment includes a flat plate 1, which is used to place a bridge frame 2. The bridge frame 2 includes two side plates 201 and multiple groups of bottom plates 202. The bottom plate 202 is placed between the two side plates 201. The side plates 201 and the bottom plates 202 are welded together. An electric cylinder 3 is provided at the bottom of the flat plate 1, and a rack 4 is provided on the telescopic shaft of the electric cylinder 3. The rack 4 is slidably arranged at the bottom of the flat plate 1, and multiple groups of clamping devices are provided on the flat plate 1.

[0026] Specifically, the side plate 201 includes a bottom surface and a side surface. The bottom plate 202 is placed on the bottom surfaces of the two side plates 201 and then welded.

[0027] The clamping device includes a gear 5, which is meshed with a rack 4, and the gear 5 is fixed on a rotating rod 6, which is rotatably arranged at the bottom of the plate 1. One end of a brake plate 7 is fixed on the side of the rack 4, and the other end of the brake plate 7 is used to clamp a slide plate 8, which is slidably arranged on the plate 1, and the square shaft end of an adjusting screw seat 9 is slidably arranged on the rotating rod 6, and the adjusting screw seat 9 is rotatably arranged on the slide plate 8. The slide plates 8 of multiple groups of clamping devices are connected by connecting plates 44; each group of clamping devices includes two groups of wall clamping devices, and the wall clamping devices include a power slide bar 10, one end of which is provided with a screw 11, and the other end of the power slide bar 10 is provided with a screw rod 11. The sliding roller 12 and the electric cylinder 3 are provided with a turn plate groove 131 at one end, and the turn plate groove 131 forms a sliding fit with the sliding roller 12. A clamping block 14 is provided at one end of the turn plate 13, and the clamping block 14 and the side clamping plate 15 are used to clamp the side plate 201; the power slide bar 10 of the left wall clamping device is slidably arranged at the bottom of the flat plate 1, the screw rod 11 forms a threaded fit with the turn rod 6, the turn plate 13 is rotatably arranged on the flat plate 1, and the side clamping plate 15 is fixed on the flat plate 1; the power slide bar 10 of the right wall clamping device is slidably arranged at the bottom of the slide plate 8, the screw rod 11 forms a threaded fit with the adjusting screw seat 9, the turn plate 13 is rotatably arranged on the slide plate 8, and the side clamping plate 15 is fixed on the slide plate 8.

[0028] Specifically, when the telescopic shaft of the electric cylinder 3 is retracted, the rack 4 drives the gear 5 to rotate, and the adjusting screw seat 9, the rotating rod 6 and the gear 5 rotate synchronously. Due to the threaded fit between the rotating rod 6 and the left screw 11, and the threaded fit between the adjusting screw seat 9 and the right screw 11, the two power slide bars 10 move outward synchronously, thereby driving the rotating plate 13 to rotate, and the clamping block 14 rotates away from the side clamping plate 15, placing the two side plates 201 between the side clamping plates 15 and the clamping block 14, and manually adjusting the slide plate 8 on the flat plate 1 The square axis of the adjusting screw seat 9 slides on the rotating rod 6, that is, the distance between the two side plates 201 is adjusted, and the bottom plate 202 is placed between the two side plates 201; the telescopic axis of the electric cylinder 3 is extended, and the two clamping blocks 14 rotate toward the direction of the side clamping plates 15 at the same time, and the clamping blocks 14 and the side clamping plates 15 clamp the side plates 201; at the same time, the brake plate 7 contacts the side of the slide plate 8, and the side of the slide plate 8 is a rough surface. Friction is generated between the brake plate 7 and the slide plate 8 to prevent the slide plate 8 from moving again.

[0029] The clamping block 14 includes a lower clamping bar 141 and an upper clamping bar 142 . The lower clamping bar 141 is used to clamp the bottom surface of the side plate 201 , and the upper clamping bar 142 is used to clamp the side surface of the side plate 201 .

[0030] Specifically, the lower clamping strip 141 and the flat plate 1 clamp the bottom surface of the side plate 201 , and the upper clamping strip 142 and the side clamping plate 15 clamp the side surface of the side plate 201 .

[0031] A slide seat 16 is provided on the flat plate 1, and a slide 20 is slidably provided on the slide seat 16. The slide 20 forms a threaded fit with a screw rod 19. The screw rod 19 is rotatably provided on two support plates 18. The screw rod 19 is connected to the rotating shaft of the motor 17, and the motor 17 is fixedly provided on one support plate 18.

[0032] Three electric cylinders 21 are arranged on the carriage 20 , and welding plates 22 are arranged on the telescopic shafts of the electric cylinders 21 .

[0033] Specifically, the motor 17 provides power to drive the screw rod 19 to rotate, and the screw rod 19 drives the slide 20 to slide along the slide seat 16; the electric cylinder 21 controls the up and down movement of the welding plate 22.

[0034] A slide plate 23 is vertically provided on the side of the welding plate 22, and a roller frame 24 is slidably provided on the slide plate 23. A roller 25 is provided at the bottom of the roller frame 24. The two ends of the spring 26 are respectively connected to the slide plate 23 and the roller frame 24. A slide groove is provided on the lever 27. The slide groove of the lever 27 is slidably connected with the upper end boss of the roller frame 24 and the upper end boss of the middle support plate 28 in turn. The middle support plate 28 is fixedly and vertically provided on the slide plate 23. The end of the lever 27 is rotatably provided on the lower pressure strip 29. The lower pressure strip 29 is slidably provided on the welding plate 22. A left groove plate 30 is fixedly provided on the left side of the lower pressure strip 29. The left groove plate 30 forms a sliding fit with the boss of the left oblique sliding block 31. The left oblique sliding block 31 is slidably provided on the left oblique sliding seat 32. The left oblique sliding seat 32 is obliquely fixed on the welding plate 22.

[0035] A right groove plate 35 is slidably provided on the right side of the lower pressure strip 29, and the sliding groove of the right groove plate 35 forms a sliding fit with the boss of the right inclined sliding block 36. The right inclined sliding block 36 is slidably provided on the right inclined sliding seat 37. The inclination angles of the right inclined sliding seat 37 and the left inclined sliding seat 32 are consistent and symmetrical. A smooth plate 38 is provided on the upper end of the right inclined sliding seat 37. The smooth plate 38 is slidably provided on the welding plate 22, and the smooth plate 38 forms a sliding fit with the sliding groove of the vertical groove plate 39. The vertical groove plate 39 is fixed on the right groove plate 35.

[0036] A welding gun 33 is provided at the bottom of the left inclined sliding block 31 and the right inclined sliding block 36 . The welding gun 33 is used for welding the weld between the side plate 201 and the bottom plate 202 .

[0037] A grinding head 34 is also provided at the bottom of the electric cylinder 1 3 and the right inclined slide block 36, and the grinding head 34 is used for grinding the weld.

[0038] Specifically, when the welding plate 22 moves downward, the roller 25 first contacts the flat plate 1, driving the roller 25 to move upward along the slide plate 23, the spring 26 is stretched, and the lever 27 rotates, driving the lower pressure bar 29 to move downward along the flat plate 1, and the lower pressure bar 29 drives the left slot plate 30 and the right slot plate 35 to move downward synchronously, so that the left inclined slide block 31 moves obliquely downward along the left inclined slide seat 32, and the right inclined slide block 36 moves obliquely downward along the right inclined slide seat 37, so the welding gun 33 approaches the weld between the side plate 201 and the bottom plate 202, and as the welding plate 22 translates, the welding gun 33 welds the weld, and the grinding head 34 also approaches the weld, and the grinding head 34 grinds the welded weld.

[0039] The top block 40 is slidably disposed in the welding plate 22 , and two ends of the tension spring 41 are respectively connected to the top block 40 and the welding plate 22 . The top block 40 is used to clamp the smooth plate 38 .

[0040] Specifically, the top block 40 contacts the side of the smooth plate 38, and the side of the smooth plate 38 is a rough surface. The tension spring 41 provides tension, so that the top block 40 generates a strong friction force on the smooth plate 38, preventing the smooth plate 38 from sliding on the welding plate 22; the top block 40 is pushed away, the tension spring 41 is stretched, the top block 40 is separated from the smooth plate 38, and the position of the smooth plate 38 on the welding plate 22 is adjusted. The vertical slot plate 39 and the right slot plate 35 also move with the smooth plate 38, so that the distance between the left inclined slide 32 and the right inclined slide 37 can be adjusted, and the distance between the two welding guns 33 can also be adjusted.

[0041] A loose push rod 42 is provided at the end of the flat plate 1, and the loose push rod 42 is used to push the push block 40 to separate the push block 40 and the flat slide plate 38. The insertion rod 43 is fixed on the slide plate 8 of the first group of clamping devices, and the insertion rod 43 is used to be inserted into the slide groove of the vertical groove plate 39.

[0042] Specifically, when the welding plate 22 moves to its original state, the end of the loose push rod 42 contacts the push block 40, separating the push block 40 and the flat plate 38, the tension spring 41 is stretched, and the insertion rod 43 is inserted into the slide groove of the vertical groove plate 39. When adjusting the position of the slide plate 8 in the flat plate 1, the power is transmitted by the loose push rod 42, so that the position of the smooth plate 38 in the welding plate 22 can be adjusted.

[0043] The working principle of this embodiment is as follows: in the original state, the telescopic shaft of the electric cylinder 3 is retracted, the clamping block 14 moves away from the side clamping plate 15, the two side plates 201 are placed between the side clamping plate 15 and the clamping block 14, and the end of the loose push rod 42 contacts the push block 40, so that the push block 40 and the flat slide plate 38 are separated, the tension spring 41 is stretched, and the insertion rod 43 is inserted into the slide groove of the vertical slot plate 39. When the position of the slide plate 8 in the flat plate 1 is adjusted, the distance between the two side plates 201 is adjusted to adapt to bridge frames 2 of different widths. The square shaft of the adjusting screw seat 9 slides on the rotating rod 6, and the power is transmitted by the loose push rod 42, so that the position of the smooth plate 38 in the welding plate 22 can be adjusted. The vertical slot plate 39 and the right slot plate 35 also move with the smooth plate 38, so that the distance between the left oblique slide seat 32 and the right oblique slide seat 37 can be adjusted, and the distance between the two welding guns 33 when working can also be adjusted, so the welding gun 33 can be automatically aligned with the weld.

[0044] Place the two side plates 201 between the clamping block 14 and the side clamping plate 15 respectively, so that the telescopic axis of the electric cylinder 3 is extended, and the two clamping blocks 14 rotate toward the direction of the side clamping plate 15 at the same time, and the clamping blocks 14 and the side clamping plates 15 clamp the side plates 201; at the same time, the brake plate 7 contacts the side of the slide plate 8, and the side of the slide plate 8 is a rough surface. Friction is generated between the brake plate 7 and the slide plate 8 to prevent the slide plate 8 from moving on the flat plate 1 again.

[0045] Place multiple sets of bottom plates 202 between two side plates 201, start the motor 17, the motor 17 drives the screw 19 to rotate, the screw 19 drives the slide 20 to slide along the slide seat 16, and synchronously drives the welding plate 22 to move, so that the end of the loose push rod 42 is separated from the top block 40, and the tension spring 41 provides tension, so that the top block 40 generates a strong friction force on the smooth plate 38, preventing the smooth plate 38 from sliding on the welding plate 22, and the slide 20 moves to the top of the first bottom plate 202, and the electric cylinder 21 is started, and the electric cylinder 21 controls the downward movement of the welding plate 22; the welding gun 33 and the grinding head 34 are away from the side plate 201 during the descent process to avoid scratching the side plate 201 and also to avoid the welding gun 33 and damage to the grinding head 34; after the welding plate 22 descends, the roller 25 first contacts the flat plate 1, driving the roller 25 to move upward along the slide plate 23, the spring 26 is stretched, the lever 27 rotates, and the lower pressure bar 29 is driven to move downward along the flat plate 1, and the lower pressure bar 29 drives the left slot plate 30 and the right slot plate 35 to move downward synchronously, so that the left inclined slide block 31 moves obliquely downward along the left inclined slide seat 32, and the right inclined slide block 36 moves obliquely downward along the right inclined slide seat 37, so the welding gun 33 is close to the weld between the side plate 201 and the bottom plate 202, and as the welding plate 22 translates, the welding gun 33 welds the weld, and the grinding head 34 is also close to the weld, and the grinding head 34 grinds the welded weld.

[0046] The electric cylinder 21 controls the welding plate 22 to move upward, and the motor 17 is started again to drive the slide 20 to move above the next bottom plate 202 to weld the next weld until all welds are welded.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An adaptive welding device for a bridge, comprising a plate (1), the plate (1) being used to place a bridge (2), the bridge (2) comprising two side plates (201) and a plurality of bottom plates (202), the bottom plate (202) being placed between the two side plates (201), the side plates (201) and the bottom plates (202) being welded together, characterized in that: An electric cylinder (3) is provided at the bottom of the plate (1), a rack (4) is provided on the telescopic shaft of the electric cylinder (3), the rack (4) is slidably arranged at the bottom of the plate (1), and a plurality of clamping devices are provided on the plate (1); The clamping device comprises a gear (5), the gear (5) and the rack (4) form a gear meshing, the gear (5) is fixedly arranged on a rotating rod (6), the rotating rod (6) is rotatably arranged at the bottom of the plate (1), one end of a brake plate (7) is fixedly arranged on the side of the rack (4), the other end of the brake plate (7) is used to clamp a slide plate (8), the slide plate (8) is slidably arranged on the plate (1), the square shaft end of the adjusting screw seat (9) is slidably arranged on the rotating rod (6), the adjusting screw seat (9) is rotatably arranged on the slide plate (8), and the slide plates (8) of the multiple sets of clamping devices are connected by a connecting plate (44); Each set of clamping devices comprises two sets of wall clamping devices, the wall clamping devices comprising a power slide bar (10), one end of the power slide bar (10) is provided with a screw rod (11), the other end of the power slide bar (10) is provided with a sliding roller (12), one end of the electric cylinder (3) is provided with a rotating plate groove (131), the rotating plate groove (131) and the sliding roller (12) form a sliding fit, one end of the rotating plate (13) is provided with a clamping block (14), the clamping block (14) and the side clamping plate (15) are used to clamp the side plate (201); The power slide bar (10) of the left wall clamping device is slidably arranged at the bottom of the flat plate (1), the screw rod (11) and the rotating rod (6) form a threaded fit, the rotating plate (13) is rotatably arranged on the flat plate (1), and the side clamping plate (15) is fixedly arranged on the flat plate (1); The power slide bar (10) of the right wall clamping device is slidably arranged at the bottom of the slide plate (8), the screw rod (11) and the adjusting screw seat (9) form a threaded fit, the rotating plate (13) is rotatably arranged on the slide plate (8), and the side clamping plate (15) is fixedly arranged on the slide plate (8); The clamping block (14) comprises a lower clamping strip (141) and an upper clamping strip (142), wherein the lower clamping strip (141) is used to clamp the bottom surface of the side plate (201), and the upper clamping strip (142) is used to clamp the side surface of the side plate (201); The flat plate (1) is provided with a slide seat (16), a slide (20) is slidably arranged on the slide seat (16), the slide (20) and the screw rod (19) form a threaded fit, the screw rod (19) is rotatably arranged on two support plates (18), the screw rod (19) is connected to the rotating shaft of the motor (17), and the motor (17) is fixedly arranged on one support plate (18); Three electric cylinders (21) are arranged on the carriage (20), and a welding plate (22) is arranged on the telescopic shaft of the electric cylinder (21); A slide plate (23) is vertically provided on the side of the welding plate (22), a roller frame (24) is slidably provided on the slide plate (23), a roller frame (24) is provided at the bottom of the roller frame (24), two ends of the spring (26) are respectively connected to the slide plate (23) and the roller frame (24), a slide groove is provided on the lever (27), and the slide groove of the lever (27) is slidably connected to the upper end boss of the roller frame (24) and the upper end boss of the middle support plate (28) in sequence, and the middle support plate (28) is connected to the roller frame (24) and the roller frame (25) at the bottom of the roller frame (25), and the two ends of the spring (26) are respectively connected to the slide plate (23) and the roller frame (24), and the two ends of the spring (26) are respectively connected to the slide plate (23) and the roller frame (25), and the two ends of the spring (26) are ... 8) fixedly and vertically arranged on the slide plate (23), the end of the lever (27) is rotatably arranged on the lower pressure strip (29), the lower pressure strip (29) is slidably arranged on the welding plate (22), a left groove plate (30) is fixedly arranged on the left side of the lower pressure strip (29), the left groove plate (30) and the boss of the left inclined slide block (31) form a sliding fit, the left inclined slide block (31) is slidably arranged on the left inclined slide seat (32), and the left inclined slide seat (32) is obliquely fixed on the welding plate (22); A right groove plate (35) is slidably provided on the right side of the lower pressure strip (29), and the slide groove of the right groove plate (35) forms a sliding match with the boss of the right inclined slide block (36), and the right inclined slide block (36) is slidably provided on the right inclined slide seat (37), and the inclination angles of the right inclined slide seat (37) and the left inclined slide seat (32) are consistent and symmetrical, and a smooth plate (38) is provided on the upper end of the right inclined slide seat (37), and the smooth plate (38) is slidably provided on the welding plate (22), and the smooth plate (38) forms a sliding match with the slide groove of the vertical groove plate (39), and the vertical groove plate (39) is fixedly provided on the right groove plate (35).

2. The adaptive welding device for bridge according to claim 1, characterized in that: A welding gun (33) is provided at the bottom of each of the left inclined sliding block (31) and the right inclined sliding block (36). The welding gun (33) is used to weld the weld between the side plate (201) and the bottom plate (202).

3. The adaptive welding device for bridge according to claim 2, characterized in that: A grinding head (34) is also provided at the bottom of the electric cylinder 1 (3) and the right inclined slide block (36) plate (1), and the grinding head (34) is used for grinding the weld.

4. The adaptive welding device for bridge according to claim 3, characterized in that: The top block (40) is used for slidingly being arranged in the welding plate (22), and two ends of the tension spring (41) are respectively connected to the top block (40) and the welding plate (22), and the top block (40) is used for clamping the smooth plate (38).

5. The adaptive welding device for bridge according to claim 4, characterized in that: The end of the flat plate (1) is provided with a loose push rod (42), which is used to push the push block (40) to separate the push block (40) from the flat plate (38). The insertion rod (43) is fixed on the slide plate (8) of the first group of clamping devices, and the insertion rod (43) is used to be inserted into the slide groove of the vertical groove plate (39).

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