Mechanical tool jig frame welding equipment for integrally adjusting curved surface of steel structure bridge

Abstract

The invention discloses mechanical tool jig frame welding equipment for an overall adjusting curved surface of a steel structure bridge, relates to the technical field of bridge curved surface welding, and aims to solve the problems that a plasma welding head and a welding pipe can generate a large amount of heat due to high arc temperature, and if the heat is continuously accumulated, the temperature of the welding pipe and the plasma welding head is too high, so that the welding quality is influenced; and side placing frames are arranged on the two sides of the multiple bottom frames correspondingly, clamping side plates are fixedly connected to the top ends of the side placing frames correspondingly, and a plasma welding head is arranged on the side, away from the bottom frames, of one clamping side plate. The mechanical tool jig frame welding equipment for the overall curved surface adjustment of the steel structure bridge has the beneficial effects that no-dead-corner temperature detection can be conducted on the whole body of a welded pipe, the problems that the welded pipe is locally overheated and locally cooled unevenly during welding of a plasma welding head are solved, the overall temperature of the welded pipe is kept stable, and the welding quality is improved. And the cooling coverage range and the cooling consistency are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of bridge curved surface welding technology, and in particular to a mechanical tooling jig welding equipment for adjusting the overall curved surface of a steel structure bridge. Background Technology

[0002] The mechanical tooling jig for adjusting the overall curved surface of a bridge, also known as a curved surface assembly or fine-tuning jig, is a specialized process equipment developed specifically for irregular curved steel structure bridges, including spatial arch ribs, steel box girders, curved steel towers, and landscape irregular bridges. It is manufactured in conjunction with metal cutting and welding equipment such as plasma arc welding machines.

[0003] During continuous welding operations on curved surfaces of steel bridge structures, the plasma welding head and welding tube, as core components that directly bear the energy of the electric arc, are subjected to the instantaneous high temperature generated by the arc discharge. The plasma welding head and welding tube must be in a high-temperature working environment for a long time. The inability to dissipate and cool the accumulated heat in a timely and effective manner will cause the overall temperature of the welding tube and plasma welding head to continue to rise, eventually leading to a serious over-temperature condition. Summary of the Invention

[0004] This invention discloses a mechanical tooling jig welding equipment for adjusting the overall curved surface of a steel structure bridge. It aims to solve the technical problem that plasma welding heads and welding pipes generate a large amount of heat due to the high temperature of the electric arc. If the heat continues to accumulate, it will cause the temperature of the welding pipe and plasma welding head to be too high, which will not only affect the welding quality, but also cause high-temperature aging and damage to the components.

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

[0006] A mechanical tooling fixture welding equipment for adjusting the overall curved surface of a steel structure bridge includes multiple base frames. Side frames are provided on both sides of each base frame. Clamping side plates are fixedly connected to the top of each side frame. A plasma welding head is provided on the side of one clamping side plate away from the base frame. A welding pipe is fixedly connected to the top of the plasma welding head. A welding pipe cooling assembly is provided on the outside of the welding pipe. The welding pipe cooling assembly includes an external pipe, a condenser pipe inside the external pipe, and the welding pipe located inside the condenser pipe. A circulating cooling device is provided on the outside of the external pipe, and a temperature sensor is provided at the top of the external pipe.

[0007] In a preferred embodiment, a motor frame is fixedly connected to one side of the plasma welding head, a servo motor is fixedly connected to the top of the motor frame, and the power output shaft of the servo motor is connected to a drive gear through a coupling.

[0008] In a preferred embodiment, a gear ring is provided on the outer side of the drive gear, and the drive gear and the gear ring mesh with each other through tooth grooves. The bottom end of the gear ring is movably connected to the top end of the plasma welding head, and a plurality of lifting rods are fixedly connected to the top end of the gear ring. A placement plate is fixedly connected to the top end of the lifting rods, and the bottom end of the circulating cooling device is fixedly connected to the top end of the placement plate.

[0009] In a preferred embodiment, the bottom end of the external tube is fixedly connected to the top end of the placement plate, both ends of the condenser tube are fixedly connected to output tubes, the ends of the output tubes away from the condenser tube are fixedly connected to the outside of the circulating cooling device, and the top end of the external tube is fixedly connected to an upper ring frame, the inside of the upper ring frame is fixedly connected to one side of the temperature detection device.

[0010] In a preferred embodiment, gap detection components are provided at the top of the two clamping side plates, an electric telescopic rod is fixedly connected to the top of the clamping side plate closer to the plasma welding head, and a telescopic component is fixedly connected to the top of the clamping side plate farther from the plasma welding head. A tension spring is provided on the outer side of the telescopic component, and the bottom end of the tension spring is fixedly connected to the top of the clamping side plate.

[0011] In a preferred embodiment, the top ends of the electric telescopic rod, the telescopic component, and the tension spring are all fixedly connected to a connecting plate. The bottom end of the connecting plate is fixedly connected to two outward expansion plates. A movable motor is provided on one side of the outward expansion plate near the telescopic component. The power output shaft of the movable motor is connected to a rotating rod through a coupling, and the end of the rotating rod away from the movable motor is movably connected to the inner side of the outward expansion plate.

[0012] In a preferred embodiment, a movable component is fixedly connected to the outer side of the rotating rod, and a gap detector is fixedly connected to one side of the movable component. The gap detector is located between two outer expansion plates, and multiple movable guide rails are fixedly connected to the bottom end of the gap detector. Symmetrical laser detection heads are movably connected to the outer side of each movable guide rail.

[0013] In a preferred embodiment, each of the multiple base frames is provided with a bidirectional telescopic rod inside, the telescopic ends of both ends of the bidirectional telescopic rod are fixedly connected to the opposite side of the side frame, and multiple adjusting rod frames are fixedly connected to the top of each base frame.

[0014] In a preferred embodiment, a fixed frame is fixedly connected to one side of the clamping side plate near the plasma welding head, a drive motor is provided on one side of the fixed frame, the power output shaft of the drive motor is connected to a threaded rod through a coupling, one end of the threaded rod is movably connected to one side of the fixed frame, and a sliding member is movably connected to the outer side of the threaded rod.

[0015] In a preferred embodiment, one side of the slider is movably connected to the inside of the fixed frame, and an annular member is fixedly connected to the side of the slider away from the clamping side plate. A welding line is provided inside the annular member, and the top end of the welding line is fixedly connected to the bottom end of the plasma welding head.

[0016] As can be seen from the above, the mechanical tooling jig welding equipment for adjusting the overall curved surface of steel structure bridges provided by the present invention can perform temperature detection around the welded pipe without dead angles, avoid the problem of local overheating and uneven cooling of the welded pipe during plasma welding, keep the overall temperature of the welded pipe stable, and effectively improve the technical effect of cooling coverage and cooling consistency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a mechanical tooling jig welding equipment for adjusting the curved surface of a steel structure bridge, as proposed in this invention.

[0018] Figure 2 This is a schematic diagram of the bottom structure of a mechanical tooling jig welding equipment for adjusting the overall curved surface of a steel structure bridge, as proposed in this invention.

[0019] Figure 3 This is a schematic diagram of the clamping side plate structure of a mechanical tooling jig welding equipment for adjusting the overall curved surface of a steel structure bridge, as proposed in this invention.

[0020] Figure 4 This is a schematic diagram of the plasma welding head of a mechanical tooling jig welding equipment for overall adjustment of the curved surface of a steel structure bridge, as proposed in this invention.

[0021] Figure 5 This is a schematic diagram of the weld pipe cooling assembly structure of a mechanical tooling jig welding equipment for overall adjustment of the curved surface of a steel structure bridge, as proposed in this invention.

[0022] Figure 6 This is a schematic diagram of the weld pipe cooling assembly of a mechanical tooling jig welding equipment for adjusting the overall curved surface of a steel structure bridge, as proposed in this invention.

[0023] Figure 7 This is a schematic diagram of the gap detection component of a mechanical tooling jig welding equipment for overall adjustment of the curved surface of a steel structure bridge, as proposed in this invention.

[0024] Figure 8 This is a schematic diagram of the gap detection component of a mechanical tooling jig welding equipment for overall adjustment of the curved surface of a steel structure bridge, as proposed in this invention.

[0025] In the diagram: 1. Base frame; 2. Bidirectional telescopic rod; 3. Side frame; 4. Clamping side plate; 5. Adjusting rod frame; 6. Fixing frame; 7. Drive motor; 8. Threaded rod; 9. Sliding part; 10. Ring part; 11. Plasma welding head; 12. Welded pipe cooling assembly; 1201. Motor frame; 1202. Servo motor; 1203. Drive gear; 1204. Gear ring; 1205. Lifting rod; 1206. Placement plate; 1207. External pipe; 1208. Condensate pipe; 1209. Circulation... Ring cooling device; 1210, upper ring frame; 1211, temperature detection device; 1212, output pipe; 13, welding pipe; 14, welding line; 15, gap detection assembly; 1501, electric telescopic rod; 1502, telescopic component; 1503, tension spring; 1504, connecting plate; 1505, outer expansion plate; 1506, movable motor; 1507, rotating rod; 1508, movable component; 1509, gap detector; 1510, movable guide rail; 1511, laser detection head. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] The mechanical tooling jig welding equipment for adjusting the overall curved surface of steel structure bridges disclosed in this invention is mainly used in scenarios where plasma welding heads and welding pipes generate a large amount of heat due to the high temperature of the electric arc. If the heat continues to accumulate, it will cause the temperature of the welding pipe and plasma welding head to be too high, which will not only affect the welding quality, but also cause high-temperature aging and damage to the components.

[0028] Reference Figures 1-8 A mechanical tooling jig welding equipment for adjusting the overall curved surface of a steel structure bridge includes multiple base frames 1. Side frames 3 are provided on both sides of the multiple base frames 1. Clamping side plates 4 are fixedly connected to the top of each side frame 3. A plasma welding head 11 is provided on the side of one of the clamping side plates 4 away from the base frame 1. A welding pipe 13 is fixedly connected to the top of the plasma welding head 11. A welding pipe cooling assembly 12 is provided on the outside of the welding pipe 13. The welding pipe cooling assembly 12 includes an external pipe 1207. A condenser pipe 1208 is provided inside the external pipe 1207. The welding pipe 13 is located inside the condenser pipe 1208. A circulating cooling device 1209 is provided on the outside of the external pipe 1207. A temperature detection device is provided at the top of the external pipe 1207.

[0029] Reference Figures 2-6In a preferred embodiment, a motor frame 1201 is fixedly connected to one side of the plasma welding head 11, a servo motor 1202 is fixedly connected to the top of the motor frame 1201, and the power output shaft of the servo motor 1202 is connected to a drive gear 1203 through a coupling.

[0030] In this invention, a gear ring 1204 is provided on the outer side of the drive gear 1203. The drive gear 1203 and the gear ring 1204 mesh with each other through tooth grooves. The bottom end of the gear ring 1204 is movably connected to the top end of the plasma welding head 11. A plurality of lifting rods 1205 are fixedly connected to the top end of the gear ring 1204, and a placement plate 1206 is fixedly connected to the top end of the lifting rods 1205. The bottom end of the circulating cooling device 1209 is fixedly connected to the top end of the placement plate 1206.

[0031] In this invention, the bottom end of the external tube 1207 is fixedly connected to the top end of the placement plate 1206, both ends of the condenser tube 1208 are fixedly connected to the output tube 1212, the end of the output tube 1212 away from the condenser tube 1208 is fixedly connected to the outside of the circulating cooling device 1209, and the top end of the external tube 1207 is fixedly connected to the upper ring frame 1210, the inside of the upper ring frame 1210 is fixedly connected to one side of the temperature detection device 1211.

[0032] Specifically, the worker holds a plasma welding head 11 and uses plasma arc welding technology to weld the curved parts of the steel structure bridge that need to be welded, achieving deep penetration and efficient welding of the curved weld seams of the steel structure bridge. During the welding process, the power output shaft of the servo motor 1202 drives the drive gear 1203 to rotate around its own axis through a coupling. The drive gear 1203 drives the gear ring 1204 to rotate synchronously through tooth groove meshing. The rotation of the gear ring 1204 will drive the placement plate 1206 and the external tube 1207, circulating cooling device 1209, temperature detection device 1211 and other components on the placement plate 1206 to rotate 360° around the axis of the welding tube 13 through the lifting rod 1205, realizing all-round monitoring and cooling of the welding tube 13. The external tube 1207 is equipped with a condenser tube 1208, and the welding tube 13 passes through the condenser tube 1208. The temperature detection device 1209... The 11 device rotates 360° synchronously with the placement plate 1206, enabling comprehensive and thorough temperature monitoring of the outer wall of the welded tube 13. It collects real-time temperature data of the welded tube 13, controlling temperature changes in the welding area to prevent localized overheating that could affect weld quality, given the concentrated heat input characteristic of plasma arc welding. When the temperature detection device 1211 detects that the temperature of the welded tube 13 exceeds the preset safety standard range, the circulating cooling device 1209 is activated. The internally stored cooling water is transported to the interior of the condenser tube 1208 through the output pipe 1212. The cooling water forms a continuous circulation within the condenser tube 1208, which is in direct contact with the welded tube 13. Through heat exchange, the high-temperature heat on the welded tube 13 is quickly removed, achieving continuous and efficient cooling of the welded tube 13. This prevents the welded tube 13 from burning or deforming due to the high temperature of plasma arc welding, ensuring the safe and stable progress of the welding operation.

[0033] It should be noted that the system can perform temperature detection around the welded pipe 13 without any blind spots, avoiding problems such as local overheating and uneven cooling, thus keeping the overall temperature of the welded pipe 13 stable and effectively improving the cooling coverage and cooling consistency.

[0034] In practical applications, temperature data is collected in real time by temperature detection device 1211. Together with circulating cooling device 1209 and condenser tube 1208, they form a circulating water cooling structure, which can quickly remove heat from the surface of welded tube 13, keep the temperature within the safe operating range, and reduce the high temperature failure rate.

[0035] Reference Figure 1 , Figure 2 , Figure 7 and Figure 8In a preferred embodiment, gap detection components 15 are provided at the top of the two clamping side plates 4, an electric telescopic rod 1501 is fixedly connected to the top of the clamping side plate 4 near the plasma welding head 11, and a telescopic member 1502 is fixedly connected to the top of the clamping side plate 4 away from the plasma welding head 11. A tension spring 1503 is provided on the outside of the telescopic member 1502, and the bottom end of the tension spring 1503 is fixedly connected to the top of the clamping side plate 4.

[0036] In this invention, the top ends of the electric telescopic rod 1501, the telescopic component 1502, and the tension spring 1503 are all fixedly connected to a connecting plate 1504. The bottom end of the connecting plate 1504 is fixedly connected to two outward expansion plates 1505. A movable motor 1506 is provided on one side of the outward expansion plate 1505 near the telescopic component 1502. The power output shaft of the movable motor 1506 is connected to a rotating rod 1507 through a coupling, and the end of the rotating rod 1507 away from the movable motor 1506 is movably connected to the inner side of the outward expansion plate 1505.

[0037] In this invention, a movable part 1508 is fixedly connected to the outer side of the rotating rod 1507, and a gap detector 1509 is fixedly connected to one side of the movable part 1508. The gap detector 1509 is located between two outer expansion plates 1505, and a plurality of movable guide rails 1510 are fixedly connected to the bottom end of the gap detector 1509. Symmetrical laser detection heads 1511 are movably connected to the outer side of each movable guide rail 1510.

[0038] Specifically, after all plasma arc welding work on the curved surfaces of the steel bridge is completed, the steel bridge is smoothly moved outward along the support curved surface of the adjusting rod frame 5. During the movement, the electric telescopic rod 1501 adjusts its telescopic length in real time according to the height changes of the bridge's curved surface, driving the connecting plate 1504 to move up and down synchronously, ensuring that the connecting plate 1504 always maintains the same relative height to the bridge's curved surface. Simultaneously, the telescopic component 1502 and the tension spring 1503 provide auxiliary buffering and adaptive adjustment for the lifting and lowering movement of the connecting plate 1504. Two outwardly expanding plates 1505 are fixedly connected to the bottom. A gap detector 1509 is installed between the two outwardly expanding plates 1505. When the movable motor 1506 is started, the movable motor 1506 drives the rotating rod 1507 to rotate around its own axis. The rotation of the rotating rod 1507 drives the movable part 1508 to rotate synchronously around the axis of the rotating rod 1507, thereby causing the gap detector 1509 to synchronously adjust its tilt angle, so that the gap detector 1509 always remains parallel and adapted to the curved surface of the steel structure bridge, ensuring that the gap detector 1509 can accurately fit the plasma arc welded surface. To avoid detection deviations caused by changes in the angle of the bridge's curved surface, the weld location is determined by a weld gap detector 1509. Multiple movable guide rails 1510 are fixedly connected to the bottom of the detector. Two symmetrically arranged laser detection heads 1511 are movably connected to the outer side of each guide rail 1510. During detection, the two laser detection heads 1511 move relative to or towards each other along the guide rails 1510 to monitor the width of the plasma arc weld in real time. The laser detection heads 1511 can adaptively adjust their displacement on the guide rails 1510 according to the actual width of the weld, and collect real-time data from both laser detection heads. The system collects the spacing data between two laser detection heads 1511 and transmits the data to the control system for analysis and judgment. If the spacing between two laser detection heads 1511 is within the preset standard range, it indicates that the weld width at that location is qualified and the plasma arc welding quality meets the standard, requiring no secondary processing. If the spacing between two laser detection heads 1511 exceeds the preset standard range, it indicates that the weld width at that location does not meet the processing requirements, and the operator needs to readjust the plasma arc welding process parameters and perform a secondary plasma arc welding operation on the weld at that location until the weld quality meets the standard.

[0039] It should be noted that the two laser detection heads 1511 can move adaptively along the movable guide rail 1510, and automatically adjust the spacing according to the actual weld width, so as to reflect the weld formation size in real time and intuitively.

[0040] In practical applications, the detection angle can be adjusted in real time to ensure that the detection surface always maintains a reasonable posture with the weld surface, guaranteeing that the laser detection head 1511 is aligned with the center of the weld. This structure effectively avoids detection deviations and data distortions caused by surface tilt, achieving full-angle, blind-spot-free detection and improving detection accuracy.

[0041] Reference Figures 1-4 In a preferred embodiment, each of the multiple base frames 1 is provided with a bidirectional telescopic rod 2. The telescopic ends of both ends of the bidirectional telescopic rod 2 are fixedly connected to the opposite side of the side frame 3. The top of each base frame 1 is fixedly connected with multiple adjusting rod frames 5. A fixed frame 6 is fixedly connected to the side of the clamping side plate 4 near the plasma welding head 11. A drive motor 7 is provided on one side of the fixed frame 6. The power output shaft of the drive motor 7 is connected to a threaded rod 8 through a coupling. One end of the threaded rod 8 is movably connected to one side of the fixed frame 6. A sliding member 9 is movably connected to the outside of the threaded rod 8. One side of the sliding member 9 is movably connected to the inside of the fixed frame 6. An annular member 10 is fixedly connected to the side of the sliding member 9 away from the clamping side plate 4. A welding line 14 is provided inside the annular member 10. The top end of the welding line 14 is fixedly connected to the bottom end of the plasma welding head 11.

[0042] Working principle: Before carrying out welding operations on steel structure bridges, the tooling jig must first be pre-adjusted according to the overall curved surface structural characteristics of the bridge. Multiple base frames 1 serve as the bearing foundation of the entire tooling equipment. Multiple adjusting rod frames 5 are evenly arranged on the top of the jig. Operators need to adjust the height and tilt angle of each adjusting rod frame 5 one by one according to the preset curved surface curvature requirements of the bridge, so that all adjusting rod frames 5 form a continuous curved surface shape on the base frame 1 that perfectly matches the curved surface of the bridge.

[0043] After adjusting the curved shape of the adjusting rod frame 5, the steel structure bridge to be processed is smoothly hoisted and placed on the top of the adjusting rod frame 5, so that the curved structure of the bridge is completely in contact with the supporting curved surface formed by the adjusting rod frame 5. Then, the bidirectional telescopic rod 2 inside the base frame 1 is activated. The telescopic ends of the bidirectional telescopic rod 2 retract synchronously inward, driving the side frames 3 on both sides of the base frame 1 to move towards each other along the length of the base frame 1. The clamping side plates 4 on both sides will move synchronously towards the sides of the bridge under the action of the side frames 3 until the inner side wall of the clamping side plate 4 is completely in contact with the side walls of the steel structure bridge, thereby clamping and fixing the steel structure bridge and ensuring that the workpiece always maintains a fixed posture during the plasma arc welding process.

[0044] After the steel structure bridge is clamped and fixed, the drive motor 7 is started. The power output shaft of the drive motor 7 drives the threaded rod 8 to rotate continuously. The rotation of the threaded rod 8 will drive the sliding part 9 to move linearly in a directional direction along the length of the fixed frame 6. The side of the sliding part 9 away from the clamping side plate 4 is fixedly connected to the annular part 10. The welding line 14 is passed through the inside of the annular part 10. The top end of the welding line 14 is fixedly connected to the bottom end of the plasma welding head 11. Therefore, the directional movement of the sliding part 9 will drive the annular part 10 and the welding line 14 to move synchronously, and then drive the plasma welding head 11 to move synchronously along the length of the clamping side plate 4, so that the plasma welding head 11 can correspond to the welding position of the curved part of the steel structure bridge. At the same time, the process parameters of plasma arc welding, including plasma gas flow rate, welding current, arc voltage and travel speed, are adjusted in advance.

[0045] Workers, holding plasma welding heads 11, use plasma arc welding technology to weld the curved surfaces of steel bridge structures, achieving deep penetration and efficient welding of the curved welds. During welding, the power output shaft of the servo motor 1202 drives the drive gear 1203 to rotate around its own axis via a coupling. The drive gear 1203, through tooth meshing, drives the gear ring 1204 to rotate synchronously. The rotation of the gear ring 1204, through the lifting rod 1205, causes the placement plate 1206 and its components, including the external tube 1207, circulating cooling device 1209, and temperature detection device 1211, to rotate 360° around the axis of the welding tube 13, achieving all-round monitoring and cooling of the welding tube 13. The external tube 1207 contains a condenser tube 1208, and the welding tube 13 passes through the condenser tube 1208. The temperature detection device 1211... The device rotates 360° synchronously with the placement plate 1206, enabling comprehensive and thorough temperature monitoring of the outer wall of the welding tube 13. It collects real-time temperature data of the welding tube 13, controlling temperature changes in the welding area to prevent localized overheating that could affect weld quality, given the concentrated heat input characteristic of plasma arc welding. When the temperature detection device 1211 detects that the temperature of the welding tube 13 exceeds the preset safety standard range, the circulating cooling device 1209 is activated. The internally stored cooling water is delivered to the condenser tube 1208 through the output pipe 1212. The cooling water forms a continuous circulation within the condenser tube 1208, which is in direct contact with the welding tube 13. Through heat exchange, the high-temperature heat on the welding tube 13 is quickly removed, achieving continuous and efficient cooling of the welding tube 13. This prevents the welding tube 13 from burning or deforming due to the high temperature of plasma arc welding, ensuring the safe and stable progress of the welding operation.

[0046] After all plasma arc welding work on the curved surfaces of the steel bridge is completed, the steel bridge is smoothly moved outward along the support curved surface of the adjusting rod frame 5. During the movement, the electric telescopic rod 1501 adjusts its telescopic length in real time according to the height changes of the bridge's curved surface, driving the connecting plate 1504 to move up and down synchronously, ensuring that the connecting plate 1504 always maintains the same relative height to the bridge's curved surface. Simultaneously, the telescopic component 1502 and the tension spring 1503 provide auxiliary buffering and adaptive adjustment for the lifting and lowering movement of the connecting plate 1504. The bottom end of the connecting plate 1504 is fixed... The fixed connection has two outer expansion plates 1505, and a gap detector 1509 is installed between the two outer expansion plates 1505. When the movable motor 1506 is started, the movable motor 1506 drives the rotating rod 1507 to rotate around its own axis. The rotation of the rotating rod 1507 drives the movable part 1508 to rotate synchronously around the axis of the rotating rod 1507, which in turn drives the gap detector 1509 to synchronously adjust its tilt angle, so that the gap detector 1509 always remains parallel and adapted to the curved surface of the steel structure bridge, ensuring that the gap detector 1509 can accurately fit the weld completed by plasma arc welding. To avoid detection deviations caused by changes in the angle of the bridge's curved surface, the bottom of the gap detector 1509 is fixedly connected to multiple movable guide rails 1510. Each movable guide rail 1510 has two symmetrically arranged laser detection heads 1511 movably connected to its outer side. During detection, the two laser detection heads 1511 move relative to or towards each other along the movable guide rails 1510 to perform real-time detection of the weld width after plasma arc welding. The laser detection heads 1511 can adaptively adjust their displacement on the movable guide rails 1510 according to the actual weld width, and collect real-time data from both lasers. The distance data between the two laser detection heads 1511 is transmitted to the control system for analysis and judgment. If the distance between the two laser detection heads 1511 is within the preset standard range, it indicates that the weld width of that part is qualified and the plasma arc welding quality meets the standard, and no secondary processing is required. If the distance between the two laser detection heads 1511 exceeds the preset standard range, it indicates that the weld width of that part does not meet the processing requirements, and the operator needs to readjust the plasma arc welding process parameters and perform a second plasma arc repair welding operation on the weld of that part until the weld quality meets the standard.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A mechanical tooling jig welding equipment for adjusting the overall curved surface of a steel structure bridge, comprising multiple base frames (1), characterized in that, Side frames (3) are provided on both sides of multiple base frames (1). Clamping side plates (4) are fixedly connected to the top of each side frame (3). Plasma welding head (11) is provided on the side of one of the clamping side plates (4) away from the base frame (1). Welding pipe (13) is fixedly connected to the top of the plasma welding head (11). Welding pipe cooling assembly (12) is provided on the outside of the welding pipe (13). Welding pipe cooling assembly (12) includes an external pipe (1207). A condenser pipe (1208) is provided inside the external pipe (1207). The welding pipe (13) is located inside the condenser pipe (1208). A circulating cooling device (1209) is provided on the outside of the external pipe (1207). A temperature detector is provided at the top of the external pipe (1207).

2. The mechanical tooling jig welding equipment for the overall adjustment of the curved surface of a steel structure bridge according to claim 1, characterized in that, A motor frame (1201) is fixedly connected to one side of the plasma welding head (11), and a servo motor (1202) is fixedly connected to the top of the motor frame (1201). The power output shaft of the servo motor (1202) is connected to a drive gear (1203) through a coupling.

3. The mechanical tooling jig welding equipment for the overall adjustment of the curved surface of a steel structure bridge according to claim 2, characterized in that, A gear ring (1204) is provided on the outside of the drive gear (1203). The drive gear (1203) and the gear ring (1204) mesh with each other through tooth grooves. The bottom end of the gear ring (1204) is movably connected to the top end of the plasma welding head (11). A plurality of lifting rods (1205) are fixedly connected to the top end of the gear ring (1204), and a placement plate (1206) is fixedly connected to the top end of the lifting rods (1205). The bottom end of the circulating cooling device (1209) is fixedly connected to the top end of the placement plate (1206).

4. The mechanical tooling jig welding equipment for integrally adjusting the curved surface of a steel structure bridge according to claim 3, characterized in that, The bottom end of the external tube (1207) is fixedly connected to the top end of the placement plate (1206). Both ends of the condenser tube (1208) are fixedly connected to the output tube (1212). The end of the output tube (1212) away from the condenser tube (1208) is fixedly connected to the outside of the circulating cooling device (1209). The top end of the external tube (1207) is fixedly connected to the upper ring frame (1210). The inside of the upper ring frame (1210) is fixedly connected to one side of the temperature detection device (1211).

5. The mechanical tooling jig welding equipment for the overall adjustment of the curved surface of a steel structure bridge according to claim 1, characterized in that, The top of the two clamping side plates (4) is provided with a gap detection component (15). The top of the clamping side plate (4) near the plasma welding head (11) is fixedly connected with an electric telescopic rod (1501). The top of the clamping side plate (4) away from the plasma welding head (11) is fixedly connected with a telescopic component (1502). A tension spring (1503) is provided on the outside of the telescopic component (1502). The bottom end of the tension spring (1503) is fixedly connected to the top of the clamping side plate (4).

6. The mechanical tooling jig welding equipment for integrally adjusting the curved surface of a steel structure bridge according to claim 5, characterized in that, The top of the electric telescopic rod (1501), the telescopic component (1502), and the tension spring (1503) are all fixedly connected to a connecting plate (1504). The bottom of the connecting plate (1504) is fixedly connected to two expansion plates (1505). A movable motor (1506) is provided on one side of the expansion plate (1505) near the telescopic component (1502). The power output shaft of the movable motor (1506) is connected to a rotating rod (1507) through a coupling. The end of the rotating rod (1507) away from the movable motor (1506) is movably connected to the inside of the expansion plate (1505).

7. The mechanical tooling jig welding equipment for integrally adjusting the curved surface of a steel structure bridge according to claim 6, characterized in that, A movable part (1508) is fixedly connected to the outer side of the rotating rod (1507). A gap detector (1509) is fixedly connected to one side of the movable part (1508). The gap detector (1509) is located between two outer expansion plates (1505). Multiple movable guide rails (1510) are fixedly connected to the bottom end of the gap detector (1509). Symmetrical laser detection heads (1511) are movably connected to the outer side of each movable guide rail (1510).

8. The mechanical tooling jig welding equipment for the overall adjustment of the curved surface of a steel structure bridge according to claim 1, characterized in that, The interior of each of the multiple base frames (1) is provided with a bidirectional telescopic rod (2), the telescopic ends of both ends of the bidirectional telescopic rod (2) are fixedly connected to the opposite side of the side frame (3), and the top of each base frame (1) is fixedly connected with multiple adjusting rod frames (5).

9. The mechanical tooling jig welding equipment for integrally adjusting the curved surface of a steel structure bridge according to claim 8, characterized in that, A fixed frame (6) is fixedly connected to one side of the clamping side plate (4) near the plasma welding head (11). A drive motor (7) is provided on one side of the fixed frame (6). The power output shaft of the drive motor (7) is connected to a threaded rod (8) through a coupling. One end of the threaded rod (8) is movably connected to one side of the fixed frame (6). A sliding member (9) is movably connected to the outside of the threaded rod (8).

10. The mechanical tooling jig welding equipment for integrally adjusting the curved surface of a steel structure bridge according to claim 9, characterized in that, One side of the sliding member (9) is movably connected to the inside of the fixed frame (6). The side of the sliding member (9) away from the clamping side plate (4) is fixedly connected to an annular member (10). The annular member (10) is provided with a welding line (14) inside, and the top end of the welding line (14) is fixedly connected to the bottom end of the plasma welding head (11).

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