Tool for field welding seam assembly of steel box girder

Abstract

The utility model relates to a tool for field welding seam assembly of a steel box girder, which belongs to the technical field of steel box girder manufacture and comprises a positioning frame, two positioning grooves are arranged on two sides of the inner wall of the positioning frame, and a first steel box girder component is arranged between the two positioning grooves. The hydraulic clamp has the advantages that the first steel box girder component and the second steel box girder component are rapidly clamped and released through the clamping force of the hydraulic clamp, in addition, the clamp head of the hydraulic clamp is further provided with the pressure sensor, the pressure sensor can be used for monitoring the clamping force of the hydraulic clamp, and the clamping force of the hydraulic clamp can be monitored through the pressure sensor. According to the welding device, the clamping device is arranged, so that reliability and safety in the clamping process can be guaranteed, the welding frame can be driven to move through the electric guide rail, then the welding gun can be driven to move to assist welding operation, manual operation is reduced, and stability and accuracy are high through machine replacement; and the assembly consistency and the welding quality stability are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of steel box girder manufacturing, in particular to a tool for assembling on-site welds of steel box girders. Background Art

[0002] With the increase in the number of motor vehicles, more and more urban roads have insufficient traffic capacity, and more and more bridges will be built in large quantities. Affected by the urban construction environment, steel structure bridges are undoubtedly the best choice. According to the current steel box girder construction technology, the steel box girder segments after on-site installation need to be adjusted on-site welds to ensure flat welds.

[0003] Traditional on-site weld assembly methods for steel box girders typically involve manual positioning and welding, or the assistance of simple fixtures. However, this on-site weld assembly method for steel box girders is limited by the stability and precision of manual operation, making it difficult to ensure assembly consistency and stable welding quality. At the same time, the existing technology lacks effective auxiliary tooling, making the assembly process cumbersome and inefficient. Utility Model Content

[0004] In view of the problems in the prior art: the traditional on-site weld assembly method of steel box girders usually adopts manual positioning and welding, or is assisted by simple clamps. However, this on-site weld assembly method of steel box girders is limited by the stability and accuracy of manual operation, and it is difficult to ensure the consistency of assembly and the stability of welding quality. At the same time, the prior art lacks effective auxiliary tooling, which makes the assembly process cumbersome and inefficient. The main purpose of the utility model is to provide a tooling for on-site weld assembly of steel box girders.

[0005] The technical solution of the present utility model is as follows: a tool for on-site weld assembly of steel box girders, comprising a positioning frame, two positioning grooves are provided on both sides of the inner wall of the positioning frame, wherein a steel box girder component one is provided between two of the positioning grooves, and a steel box girder component two is provided between the other two positioning grooves, the contact ends of the steel box girder component one and the steel box girder component two are welds, a clamping mechanism is provided inside the positioning grooves, a fine-tuning mechanism is provided at the top of the positioning frame, and an auxiliary welding mechanism is provided at the top of the inner wall of the positioning frame.

[0006] By adopting the above technical solution and using a tooling consisting of a positioning frame, a fine-tuning mechanism, a clamping mechanism and an auxiliary welding mechanism, high precision, high efficiency and high stability of on-site weld assembly of steel box girders are achieved. At the same time, this solution also provides a variety of optional replacement solutions to meet the needs of different application scenarios, further improving the versatility and flexibility of the tooling.

[0007] As a preferred embodiment, the clamping mechanism includes a hydraulic clamp arranged inside the positioning groove, the clamp heads of the hydraulic clamps are in contact with both sides of steel box girder component two and steel box girder component one, the inner walls of the hydraulic clamp heads are embedded with pressure sensors, and a controller is fixedly installed on the outside of the positioning frame.

[0008] By adopting the above technical solution, the clamping force of the hydraulic clamp is used to achieve rapid clamping and release of the steel box girder component one and the steel box girder component two. In addition, a pressure sensor is provided at the clamp head of the hydraulic clamp, which can be used to monitor the clamping force of the hydraulic clamp, thereby ensuring reliability and safety during the clamping process.

[0009] As a preferred embodiment, the fine-tuning mechanism includes two electric telescopic rods fixedly installed at the four corners of the top of the positioning frame, and a sliding groove is opened inside the positioning frame and on one side of the positioning groove. The inside of the sliding groove is slidably connected with a slider, and the piston rod of the electric telescopic rod extends to the inside of the sliding groove and is fixedly connected to the corresponding slider. An adjustment block is fixedly connected between the two sliders, and the adjustment block is fixedly connected to the corresponding hydraulic clamp.

[0010] By adopting the above technical solution and using an electric telescopic rod, the corresponding slider can be driven to move in the slide groove, thereby driving the movement of the adjustment block, so that the position of the hydraulic clamp and the steel box girder components can be fine-tuned to meet the assembly accuracy requirements.

[0011] As a preferred embodiment, the auxiliary welding mechanism includes a crossbeam fixedly connected to the top of the positioning frame, an electric guide rail is provided at the bottom end of the crossbeam, a welding frame is slidably connected to the inside of the electric guide rail, and a welding gun is fixedly installed at the bottom end of the welding frame.

[0012] By adopting the above technical solution, the electric guide rail can drive the movement of the welding frame, and then drive the welding gun to move, so as to assist the welding operation.

[0013] As a preferred embodiment, hydraulic cylinders are fixedly installed at both ends of the top of the crossbeam, and the piston rods of the hydraulic cylinders pass through the crossbeam and are fixedly connected to the electric guide rail.

[0014] By adopting the above technical solution, the movement of the piston rod of the hydraulic cylinder can drive the electric guide rail to move as a whole, thereby being able to adapt to steel box beam components of different heights for welding operations.

[0015] As a preferred embodiment, the positioning frame is entirely made of lightweight materials such as aluminum alloy or carbon fiber.

[0016] By adopting the above technical solution, lightweight materials such as aluminum alloy or carbon fiber can be replaced according to actual needs, and the overall weight of the tooling can be reduced while ensuring the load-bearing capacity.

[0017] As a preferred embodiment, the hydraulic cylinder, the electric telescopic rod, the welding gun, the electric guide rail, the hydraulic clamp and the pressure sensor are all electrically connected to the controller.

[0018] By adopting the above technical solution, the hydraulic cylinder, electric telescopic rod, welding gun, electric guide rail, hydraulic clamp and pressure sensor can be controlled to start and stop through the controller.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are:

[0020] 1. In the present invention, the clamping force of the hydraulic clamp is used to quickly clamp and release the steel box girder component one and the steel box girder component two. In addition, a pressure sensor is provided at the clamp head of the hydraulic clamp. The pressure sensor can be used to monitor the clamping force of the hydraulic clamp, thereby avoiding the slipping of the components due to poor stability caused by too small a clamping force, and avoiding the damage of the components due to too large a clamping force, thereby ensuring the reliability and safety of the clamping process.

[0021] 2. In the present invention, the use of an electric telescopic rod can drive the corresponding slider to move in the slide groove, and then drive the movement of the adjustment block, so that the position of the hydraulic clamp and the steel box girder components can be fine-tuned to meet the assembly accuracy requirements.

[0022] 3. In the present invention, the electric guide rail can drive the movement of the welding frame, and then drive the welding gun to move, so as to assist the welding operation and reduce manual operation. The machine replacement makes the stability and accuracy higher, ensuring the consistency of assembly and the stability of welding quality.

[0023] 4. In the present invention, the positioning frame can be made of high-strength steel to ensure the stability and load-bearing capacity of the structure, and can also be replaced with lightweight materials such as aluminum alloy or carbon fiber according to actual needs, which can reduce the overall weight of the tooling while ensuring the load-bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model provides an overall three-dimensional diagram of a tool for on-site weld assembly of a steel box girder;

[0025] Figure 2 The utility model provides a side view of a tool for on-site weld assembly of a steel box girder;

[0026] Figure 3The utility model provides a tool for assembling the weld seams of steel box beams on site. Figure 1 Enlarged view of point A in the middle;

[0027] Figure 4 The utility model provides a tool for assembling the weld seams of steel box beams on site. Figure 2 Enlarged view of point B in the middle.

[0028] Legend: 1. Positioning frame; 2. Positioning groove; 3. Steel box girder component 1; 4. Steel box girder component 2; 5. Crossbeam; 6. Hydraulic cylinder; 7. Electric telescopic rod; 8. Welding gun; 9. Welding frame; 10. Electric guide rail; 11. Slide; 12. Slider; 13. Adjustment block; 14. Hydraulic clamp; 15. Pressure sensor; 16. Controller. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] Reference Figure 1-4 A tool for on-site weld assembly of a steel box girder comprises a positioning frame 1, two positioning grooves 2 are provided on both sides of the inner wall of the positioning frame 1, a steel box girder component 1 3 is provided between the two positioning grooves 2, and a steel box girder component 2 4 is provided between the other two positioning grooves 2, the contact end of the steel box girder component 1 3 and the steel box girder component 2 4 is a weld, a clamping mechanism is provided inside the positioning groove 2, a fine-tuning mechanism is provided at the top of the positioning frame 1, and an auxiliary welding mechanism is provided at the top of the inner wall of the positioning frame 1.

[0031] During use, by adopting the tooling consisting of the positioning frame 1, the fine-tuning mechanism, the clamping mechanism and the auxiliary welding mechanism, high precision, high efficiency and high stability of the on-site weld assembly of the steel box girder are achieved. At the same time, this solution also provides a variety of optional replacement solutions to meet the needs of different application scenarios, further improving the versatility and flexibility of the tooling.

[0032] Reference Figure 4 The clamping mechanism includes a hydraulic clamp 14 arranged inside the positioning groove 2. The clamp heads of the hydraulic clamp 14 are in contact with both sides of the steel box girder component 2 4 and the steel box girder component 1 3. The inner walls of the clamp heads of the hydraulic clamp 14 are embedded with pressure sensors 15, and a controller 16 is fixedly installed on the outside of the positioning frame 1.

[0033] During use, the clamping force of the hydraulic clamp 14 is used to quickly clamp and release the steel box girder component 1 3 and the steel box girder component 2 4. In addition, a pressure sensor 15 is provided at the clamp head of the hydraulic clamp 14. The pressure sensor 15 can be used to monitor the clamping force of the hydraulic clamp 14, thereby avoiding the slipping of the components due to poor stability caused by too small clamping force, and avoiding damage to the components due to excessive clamping force, thereby ensuring reliability and safety during the clamping process.

[0034] Reference Figure 3 The fine-tuning mechanism includes two electric telescopic rods 7 fixedly installed at the four corners of the top of the positioning frame 1. A slide groove 11 is opened inside the positioning frame 1 and on one side of the positioning groove 2. The inside of the slide groove 11 is slidably connected with a slider 12. The piston rod of the electric telescopic rod 7 extends to the inside of the slide groove 11 and is fixedly connected to the corresponding slider 12. An adjustment block 13 is fixedly connected between the two sliders 12, and the adjustment block 13 is fixedly connected to the corresponding hydraulic clamp 14.

[0035] During use, the electric telescopic rod 7 can drive the corresponding slider 12 to move in the slide groove 11, and then drive the movement of the adjustment block 13, so that the position of the hydraulic clamp 14 and the steel box beam components can be fine-tuned to meet the assembly accuracy requirements.

[0036] Reference Figure 2 The auxiliary welding mechanism includes a crossbeam 5 fixedly connected to the top of the positioning frame 1, an electric guide rail 10 is provided at the bottom end of the crossbeam 5, a welding frame 9 is slidably connected inside the electric guide rail 10, and a welding gun 8 is fixedly installed at the bottom end of the welding frame 9.

[0037] During use, the electric guide rail 10 can drive the movement of the welding frame 9, and then drive the welding gun 8 to move, so as to assist the welding operation and reduce manual operation. The machine replacement makes the stability and accuracy higher, ensuring the consistency of assembly and the stability of welding quality.

[0038] Reference Figure 2 Hydraulic cylinders 6 are fixedly installed at both ends of the top of the crossbeam 5. The piston rods of the hydraulic cylinders 6 pass through the crossbeam 5 and are fixedly connected to the electric guide rail 10. The movement of the piston rod of the hydraulic cylinder 6 can drive the electric guide rail 10 to move as a whole, thereby being able to adapt to steel box beam components of different heights for welding operations.

[0039] Reference Figure 1 The positioning frame 1 is made of lightweight materials such as aluminum alloy or carbon fiber.

[0040] When in use, the positioning frame 1 can be made of high-strength steel to ensure the stability and load-bearing capacity of the structure, and can also be replaced with lightweight materials such as aluminum alloy or carbon fiber according to actual needs, which can reduce the overall weight of the tooling while ensuring the load-bearing capacity.

[0041] Reference Figure 1 The hydraulic cylinder 6, the electric telescopic rod 7, the welding gun 8, the electric guide rail 10, the hydraulic clamp 14 and the pressure sensor 15 are all electrically connected to the controller 16. The controller 16 can control the hydraulic cylinder 6, the electric telescopic rod 7, the welding gun 8, the electric guide rail 10, the hydraulic clamp 14 and the pressure sensor 15 to start and stop.

[0042] Working principle: First, the clamping force of the hydraulic clamp 14 is used to quickly clamp and release the steel box girder component 1 3 and the steel box girder component 2 4. In addition, a pressure sensor 15 is provided at the clamp head of the hydraulic clamp 14. The pressure sensor 15 can be used to monitor the clamping force of the hydraulic clamp 14, thereby avoiding the slipping phenomenon caused by the poor stability of the component due to too small clamping force, and at the same time avoiding the damage of the component due to excessive clamping force, thereby ensuring the reliability and safety of the clamping process. The use of the electric telescopic rod 7 can drive the corresponding slider 12 to move in the slide groove 11, thereby driving The movement of the adjustment block 13 can fine-tune the position of the hydraulic clamp 14 and the steel box girder components to meet the assembly accuracy requirements, and through the electric guide rail 10, it can drive the movement of the welding frame 9, and then drive the welding gun 8 to move, for assisting the welding operation, and reduce manual operation. The machine replacement makes the stability and accuracy higher, ensuring the consistency of assembly and the stability of welding quality. The positioning frame 1 can be made of high-strength steel to ensure the stability and load-bearing capacity of the structure. It can also be replaced with lightweight materials such as aluminum alloy or carbon fiber according to actual needs, which can reduce the overall weight of the tooling while ensuring the load-bearing capacity.

[0043] The above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A tool for on-site weld assembly of a steel box girder, comprising a positioning frame (1), characterized in that: Two positioning grooves (2) are provided on both sides of the inner wall of the positioning frame (1), wherein a steel box beam component 1 (3) is provided between two of the positioning grooves (2), and a steel box beam component 2 (4) is provided between the other two positioning grooves (2), and the contact ends of the steel box beam component 1 (3) and the steel box beam component 2 (4) are welded joints, and a clamping mechanism is provided inside the positioning grooves (2), a fine-tuning mechanism is provided at the top end of the positioning frame (1), and an auxiliary welding mechanism is provided at the top end of the inner wall of the positioning frame (1).

2. The tool for on-site weld assembly of a steel box girder according to claim 1, characterized in that: The clamping mechanism includes a hydraulic clamp (14) arranged inside the positioning groove (2), the clamp heads of the hydraulic clamp (14) are in contact with both sides of the steel box beam component 2 (4) and the steel box beam component 1 (3), the inner walls of the clamp heads of the hydraulic clamp (14) are embedded with pressure sensors (15), and a controller (16) is fixedly installed on the outer side of the positioning frame (1).

3. The tool for on-site weld assembly of a steel box girder according to claim 2, characterized in that: The fine-tuning mechanism includes two electric telescopic rods (7) fixedly mounted on the four corners of the top of the positioning frame (1), a slide groove (11) is provided inside the positioning frame (1) and on one side of the positioning groove (2), a slider (12) is slidably connected inside the slide groove (11), the piston rods of the electric telescopic rods (7) extend into the slide groove (11) and are fixedly connected to the corresponding slider (12), an adjustment block (13) is fixedly connected between the two sliders (12), and the adjustment block (13) is fixedly connected to the corresponding hydraulic clamp (14).

4. The tool for on-site weld assembly of a steel box girder according to claim 3, characterized in that: The auxiliary welding mechanism comprises a crossbeam (5) fixedly connected to the top of the positioning frame (1), an electric guide rail (10) is provided at the bottom end of the crossbeam (5), a welding frame (9) is slidably connected inside the electric guide rail (10), and a welding gun (8) is fixedly installed at the bottom end of the welding frame (9).

5. The tool for on-site weld assembly of a steel box girder according to claim 4, characterized in that: Hydraulic cylinders (6) are fixedly mounted on both ends of the top of the crossbeam (5), and piston rods of the hydraulic cylinders (6) pass through the crossbeam (5) and are fixedly connected to the electric guide rail (10).

6. The tool for on-site weld assembly of a steel box girder according to claim 5, characterized in that: The hydraulic cylinder (6), the electric telescopic rod (7), the welding gun (8), the electric guide rail (10), the hydraulic clamp (14) and the pressure sensor (15) are all electrically connected to the controller (16).

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