Deck welding positioning device

Abstract

The application discloses a deck welding positioning device and relates to the technical field of ship deck welding technology. The device comprises a bottom plate, first and second support plates symmetrically arranged above the bottom plate, a third support plate arranged between the first and second support plates, fixing mechanisms arranged above the first and second support plates, and a fixing rod connecting the first, second and third support plates. The device is provided with a rack and a gear. The rack drives the gear to rotate when the moving rod is moved towards the second support plate by a cylinder, so that the gear synchronously drives the rotating shaft, the first support plate, the second support plate and the third support plate to rotate counterclockwise. When the first, second and third support plates are turned to a certain angle, welding work can be performed on the back of the two deck steel plates. The device is easy to operate and is beneficial to improving the welding quality of the deck steel plates.

Description

Technical Field

[0001] This invention relates to the field of ship deck welding technology, and more particularly to a deck welding positioning device. Background Technology

[0002] Floating production storage and offloading (FPSO) vessels are key facilities for offshore oil and gas development, primarily used for the extraction, processing, storage, and transportation of oil, natural gas, and other energy resources at sea. The deck is a crucial component of the hull, a planar structure above the inner bottom plate used to cover the ship's interior space. Composed of plates and a frame, the deck plays a vital role in ensuring the hull's strength and unsinkability. Before being put into service, steel ship decks require welding to form a monolithic structure from the steel plates.

[0003] To prevent the deck from sliding or shifting during welding, positioning devices are usually used to temporarily fix the deck. However, most existing positioning devices are not convenient for flipping the deck, making it inconvenient for operators to perform double-sided welding, which is not conducive to improving the welding quality of the deck. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a deck welding positioning device.

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

[0006] A deck welding positioning device includes a base plate, on which a first support plate and a second support plate are symmetrically arranged. A third support plate is arranged between the first and second support plates. A fixing mechanism is provided above both the first and second support plates. The third support plate is connected to the first and second support plates by a fixing rod. A first fixing member is installed on the top of the base plate at both ends corresponding to the first support plate. The first support plate is connected to the first fixing member by a rotating shaft.

[0007] Preferably, a gear is fixed to one end of the rotating shaft, a rack is meshed below the gear, a moving rod is fixedly connected below the rack, a cylinder is provided below the moving rod, and the moving rod is fixedly connected to the output end of the cylinder through a fixing plate, and the cylinder is fixedly connected to the base plate through a fixing bracket.

[0008] Preferably, rollers are installed at both ends of the lower part of the movable rod, and a guide rail is provided on the upper part of the base plate at the position corresponding to the rollers.

[0009] Preferably, a guide rod is fixed in the middle of the second support plate, a connecting sleeve is sleeved on the surface of the guide rod, a first connecting rod is fixedly connected to one side of the connecting sleeve, a second connecting rod is rotatably connected to one end of the first connecting rod, a second fixing member is rotatably connected to one end of the second connecting rod, and the second fixing member is fixedly connected to the base plate.

[0010] Preferably, the surface of the third support plate has a through slot.

[0011] Preferably, the fixing mechanism includes a bracket, a lead screw is threaded onto the upper part of the bracket, a handle is fixed to the upper end of the lead screw, and a pressure plate is rotatably connected to the lower end of the lead screw. An air pump is installed above the pressure plate, and a suction cup is connected to the lower end of the air pump.

[0012] Preferably, hydraulic rods are symmetrically fixed below the second support plate, and a fixing seat is fixed above the base plate at the position corresponding to the hydraulic rods, with an elastic pad provided above the fixing seat.

[0013] Preferably, the first support plate is fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the first fixing member.

[0014] Preferably, one side of the pressure plate is in contact with one side of the bracket, and the pressure plate is slidably connected to the bracket, with anti-slip texture provided on the underside of the pressure plate.

[0015] Preferably, a pressure sensor is installed below the pressure plate, and a controller is installed on one side above the base plate. The cylinder, the air pump, and the pressure sensor are all electrically connected to the controller.

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

[0017] 1. The present invention is provided with a first support plate, a second support plate and a third support plate. The fixing mechanism can quickly fix two deck steel plates to be welded. The slot opened on the third support plate makes it convenient for the operator to weld the joint end of the two deck steel plates.

[0018] 2. The present invention is equipped with an air pump and a suction cup. After the pressure plate presses against one end of the deck steel plate, the air pump can be automatically started to evacuate the suction cup, creating a negative pressure environment inside the suction cup, so that the suction cup can firmly adhere to the deck steel plate, thereby further improving the fixing stability of the deck steel plate.

[0019] 3. This invention is equipped with a rack and gear. A cylinder is used to move the moving rod towards the second support plate. The rack drives the gear to mesh and rotate, so that the gear synchronously drives the rotating shaft, the first support plate, the second support plate and the third support plate to rotate counterclockwise. After the first support plate, the second support plate and the third support plate are rotated to a certain angle, the welding work on the back of the two deck steel plates can be carried out. The operation is simple and helps to improve the welding quality of the deck steel plates. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the deck welding positioning device proposed in this invention;

[0021] Figure 2 This is a schematic diagram of the structure of the first support plate and the pressure plate in the deck welding positioning device proposed in this invention;

[0022] Figure 3 This is a schematic diagram of the guide rod, connecting sleeve, first connecting rod, and second connecting rod in the deck welding positioning device proposed in this invention.

[0023] Figure 4 The deck welding positioning device proposed in this invention Figure 3 Enlarged structural diagram at point A;

[0024] Figure 5 This is a schematic diagram showing the connection relationship between the first support plate, gear, and rotating shaft in the deck welding positioning device proposed in this invention.

[0025] Figure 6 This is a schematic diagram of the moving rod, roller, and cylinder in the deck welding positioning device proposed in this invention.

[0026] Figure 7 This is a schematic diagram of the fixing mechanism in the deck welding positioning device proposed in this invention.

[0027] In the diagram: 1. Base plate; 2. First support plate; 3. Second support plate; 4. Third support plate; 5. Fixing rod; 6. Groove; 7. First fixing component; 8. Rotating shaft; 9. Gear; 10. Rack; 11. Moving rod; 12. Fixing plate; 13. Cylinder; 14. Fixing frame; 15. Roller; 16. Guide rail; 17. Guide rod; 18. Connecting sleeve; 19. First connecting rod; 20. Second connecting rod; 21. Second fixing component; 22. Hydraulic rod; 23. Fixing seat; 24. Elastic pad; 25. Bracket; 26. Lead screw; 27. Handle; 28. Pressure plate; 29. ​​Air pump; 30. Suction cup; 31. Pressure sensor; 32. Controller. Detailed Implementation

[0028] 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.

[0029] Reference Figure 1-6 The deck welding positioning device includes a base plate 1. A first support plate 2 and a second support plate 3 are symmetrically arranged above the base plate 1. A third support plate 4 is arranged between the first support plate 2 and the second support plate 3. A fixing mechanism is provided above both the first support plate 2 and the second support plate 3. The third support plate 4 is connected to the first support plate 2 and the second support plate 3 via a fixing rod 5. First fixing members 7 are installed at both ends of the first support plate 2 above the base plate 1. The first support plate 2 is connected to the first fixing members 7 via a rotating shaft 8. The first support plate 2 is fixedly connected to the rotating shaft 8, and the rotating shaft 8 is rotatably connected to the first fixing members 7. A gear 9 is fixed to one end of the rotating shaft 8. A rack 10 is meshed with the bottom, and a moving rod 11 is fixedly connected to the bottom of the rack 10. A cylinder 13 is set below the moving rod 11, and the moving rod 11 is fixedly connected to the output end of the cylinder 13 through a fixing plate 12. The cylinder 13 is fixedly connected to the base plate 1 through a fixing bracket 14. The cylinder 13 is used to move the moving rod 11 towards the second support plate 3. The rack 10 drives the gear 9 to mesh and rotate, so that the gear 9 synchronously drives the rotating shaft 8, the first support plate 2, the second support plate 3 and the third support plate 4 to rotate counterclockwise. After the first support plate 2, the second support plate 3 and the third support plate 4 are rotated to a certain angle, the welding work on the back of the two deck steel plates can be carried out.

[0030] Reference Figure 1 and Figure 6 Rollers 15 are installed at both ends of the lower part of the moving rod 11. A guide rail 16 is provided on the upper part of the base plate 1 at the position corresponding to the rollers 15. The rollers 15 and the guide rail 16 are connected in a rolling manner, which can provide stable support for the moving rod 11.

[0031] Reference Figure 3 A guide rod 17 is fixed in the middle of the second support plate 3. A connecting sleeve 18 is sleeved on the surface of the guide rod 17. A first connecting rod 19 is fixedly connected to one side of the connecting sleeve 18. A second connecting rod 20 is rotatably connected to one end of the first connecting rod 19. A second fixing member 21 is rotatably connected to one end of the second connecting rod 20. The second fixing member 21 is fixedly connected to the base plate 1. After the first support plate 2, the second support plate 3 and the third support plate 4 are flipped to a certain angle, the first connecting rod 19 and the second connecting rod 20 play a certain stabilizing role for the second support plate 3.

[0032] Reference Figure 1The surface of the third support plate 4 has a through slot 6, which facilitates the operator to weld the joint ends of the two deck steel plates.

[0033] Reference Figure 7 The fixing mechanism includes a bracket 25, with a lead screw 26 threaded onto the upper part of the bracket 25. A handle 27 is fixed to the upper end of the lead screw 26, and a pressure plate 28 is rotatably connected to the lower end of the lead screw 26. One side of the pressure plate 28 is in contact with one side of the bracket 25, and the pressure plate 28 is slidably connected to the bracket 25. This structure can limit the pressure plate 28 during the rotation of the lead screw 26, preventing the pressure plate 28 from rotating, thereby enabling the pressure plate 28 to move vertically. The pressure plate 28 has anti-slip textures on its lower part. The anti-slip textures can increase the friction between the pressure plate 28 and the deck steel plate, thereby enhancing the fixing effect on the deck steel plate.

[0034] Reference Figure 3-4 Hydraulic rods 22 are symmetrically fixed below the second support plate 3. A fixing seat 23 is fixed above the base plate 1 at the position corresponding to the hydraulic rods 22. An elastic pad 24 is provided above the fixing seat 23. When the first support plate 2, the second support plate 3 and the third support plate 4 are in a horizontal state, the lower end of the hydraulic rod 22 abuts against the elastic pad 24, which supports the second support plate 3.

[0035] Reference Figure 7 An air pump 29 is installed above the pressure plate 28, and a suction cup 30 is connected to the lower end of the air pump 29. A pressure sensor 31 is installed below the pressure plate 28, and a controller 32 is installed on one side above the base plate 1. Both the pressure sensor 31 and the controller 32 are common products on the market. For example, the pressure sensor 31 is model DYLY-101, and the controller 32 is model HX711. The cylinder 13, the air pump 29, and the pressure sensor 31 are all electrically connected to the controller 32. After the pressure plate 28 presses against one end of the deck steel plate, the pressure sensor 31 is subjected to pressure and feeds the information back to the controller 32. The controller 32 controls the air pump 29 to start, which evacuates the suction cup 30 to create a negative pressure environment inside the suction cup 30, so that the suction cup 30 can firmly adhere to the deck steel plate, thereby further improving the fixing stability of the deck steel plate.

[0036] In this invention, two deck steel plates to be welded are placed above the first support plate 2, the second support plate 3, and the third support plate 4, respectively. The welding ends of the two deck steel plates are located at the slot 6. Then, the handle 27 is rotated in the forward direction. Since the lead screw 26 is threadedly assembled with the bracket 25, and since one end of the pressure plate 28 slides against one side of the bracket 25, it plays a limiting role on the pressure plate 28 itself. The pressure plate 28 can be moved downward gradually until the bottom of the pressure plate 28 presses against one end of the deck steel plate. The pressure sensor 31 receives pressure and feeds the information back to the controller 32. The controller 32 controls the air pump 29 to start and evacuate the suction cup 30 to form a negative pressure environment inside the suction cup 30, so that the suction cup 30 can firmly hold the deck steel plate, improving the fixing stability of the deck steel plate. After the two steel plates are fixed, the welding work of the deck steel plates can be carried out.

[0037] After completing the welding on the top of the deck steel plate, if welding is required on the back of the steel plate, cylinder 13 can be activated. Cylinder 13 moves the moving rod 11 towards the second support plate 3. The rack 10 drives the gear 9 to mesh and rotate, so that the gear 9 synchronously drives the rotating shaft 8, the first support plate 2, the second support plate 3 and the third support plate 4 to rotate counterclockwise. The hydraulic rod 22 separates from the elastic pad 24, and the connecting sleeve 18, the first connecting rod 19 and the second connecting rod 20 all rotate. After the first support plate 2, the second support plate 3 and the third support plate 4 are flipped to a certain angle, cylinder 13 is closed. Since the rack 10 and the gear 9 are still meshed at this time, the first support plate 2, the second support plate 3 and the third support plate 4 can be prevented from rotating on their own. After flipping the first support plate 2, the second support plate 3 and the third support plate 4, the welding work on the back of the two deck steel plates can be carried out.

[0038] After welding is completed, cylinder 13 is activated to reset moving rod 11, rack 10 and gear 9, so that the first support plate 2, second support plate 3 and third support plate 4 return to a horizontal state. The lower end of hydraulic rod 22 abuts against elastic pad 24 again, providing support for second support plate 3. Then, using controller 32, air pump 29 is activated to inflate suction cup 30, so that suction cup 30 no longer sucks on steel plate. Then, handle 27 is rotated in the opposite direction to move pressure plate 28 upward. Finally, the deck steel plate can be removed.

[0039] 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 deck welding positioning device, comprising a base plate (1), characterized in that, A first support plate (2) and a second support plate (3) are symmetrically arranged above the base plate (1). A third support plate (4) is arranged between the first support plate (2) and the second support plate (3). A fixing mechanism is provided above both the first support plate (2) and the second support plate (3). The third support plate (4) is connected to the first support plate (2) and the second support plate (3) through a fixing rod (5). A first fixing member (7) is installed at both ends of the base plate (1) corresponding to the first support plate (2). The first support plate (2) is connected to the first fixing member (7) through a rotating shaft (8). A gear (9) is fixed at one end of the rotating shaft (8), a rack (10) is meshed below the gear (9), a moving rod (11) is fixedly connected below the rack (10), a cylinder (13) is provided below the moving rod (11), and the moving rod (11) is fixedly connected to the output end of the cylinder (13) through a fixing plate (12). The cylinder (13) is fixedly connected to the base plate (1) through a fixing frame (14). Rollers (15) are installed at both ends below the moving rod (11), and a guide rail (16) is provided on the top of the base plate (1) corresponding to the position of the rollers (15). A guide rod (17) is fixed in the middle of the second support plate (3). A connecting sleeve (18) is sleeved on the surface of the guide rod (17). A first connecting rod (19) is fixedly connected to one side of the connecting sleeve (18). A second connecting rod (20) is rotatably connected to one end of the first connecting rod (19). A second fixing member (21) is rotatably connected to one end of the second connecting rod (20). The second fixing member (21) is fixedly connected to the base plate (1). Hydraulic rods (22) are symmetrically fixed below the second support plate (3), and a fixing seat (23) is fixed above the bottom plate (1) at the position corresponding to the hydraulic rods (22). An elastic pad (24) is provided above the fixing seat (23). The fixing mechanism includes a bracket (25), a lead screw (26) is threaded onto the upper part of the bracket (25), a handle (27) is fixed to the upper end of the lead screw (26), and a pressure plate (28) is rotatably connected to the lower end of the lead screw (26). One side of the pressure plate (28) is in contact with one side of the bracket (25), and the pressure plate (28) is slidably connected to the bracket (25). Anti-slip texture is provided on the lower part of the pressure plate (28). An air pump (29) is installed on the upper part of the pressure plate (28), a suction cup (30) is connected to the lower end of the air pump (29), a pressure sensor (31) is installed on the lower part of the pressure plate (28), and a controller (32) is installed on one side of the upper part of the base plate (1). The cylinder (13), the air pump (29), and the pressure sensor (31) are all electrically connected to the controller (32).

2. The deck welding positioning device according to claim 1, characterized in that, The surface of the third support plate (4) is provided with a through slot (6).

3. The deck welding positioning device according to claim 1, characterized in that, The first support plate (2) is fixedly connected to the rotating shaft (8), and the rotating shaft (8) is rotatably connected to the first fixing member (7).

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