Laser welding device for tower crane boom

Abstract

The invention provides a tower crane boom laser welding device, and relates to the technical industry manufacturing field, the tower crane boom laser welding device is characterized in that a cooling assembly comprises holes, a collecting water tank, a water pump, a water pipe, a control valve and a spray head, a groove is formed in the center of the interior of a placing table, a plurality of holes are formed in the groove, and the bottom of the placing table is fixedly connected with the collecting water tank; the interior of the collecting water tank is hollow, a water pump is fixedly mounted on one side of the exterior of the collecting water tank, a water pipe is fixedly connected to the interior of the water pump, a control valve is arranged outside the water pipe, and the exterior of the water pipe penetrates through the interior of the storage tank. According to the cooling assembly, precise physical cooling is conducted on a welding area through the spray head, water flow is recycled through the collecting water tank, a circulating system is formed, high heat generated by laser welding can be effectively controlled through real-time cooling, damage of high temperature to core components such as a laser welding device body and a welding head is avoided while continuous cooling is conducted, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of industrial manufacturing technology, specifically to a laser welding device for tower crane booms. Background Technology

[0002] In the modern construction industry, tower cranes are key lifting and transportation equipment. The structural strength and welding quality of their booms directly affect construction safety and project efficiency. Tower crane booms are usually made up of multiple metal components connected by welding. Traditional welding processes often use electric arc welding, gas welding, etc. These processes have defects such as low welding efficiency, large heat-affected zone, easy to produce welding deformation and porosity, and it is difficult to ensure the uniformity and consistency of welds for the complex structure of large booms. With the development of laser welding technology, its advantages such as high energy density, fast welding speed, and small heat-affected zone have led to its gradual application in the welding of metal components. However, applying laser welding technology to the welding of tower crane booms still faces many challenges: First, the metal components of the boom are large and heavy, making it difficult to clamp and rotate them stably during welding, resulting in difficulties in adjusting the welding position and affecting welding accuracy. Second, laser welding generates a large amount of heat, which, if not cooled effectively in time, can cause workpiece deformation and potentially affect the service life of the laser welding equipment. In addition, existing laser welding equipment has a low degree of automation and relies heavily on manual operation, making it difficult to meet the needs of mass production of tower crane booms and posing a high risk of manual operation.

[0003] Chinese patent CN212384866U discloses a welding equipment for tower crane boom production, including a welding table. Bases are fixedly installed on both front ends of the upper outer surface of the welding table, and a welding robot is movably installed on the upper outer surface of the bases. A welding torch is movably installed on the side of the welding robot near the welding table. Positioners are fixedly installed on both rear ends of the upper outer surface of the welding table, and a turntable is movably installed on the outer surface of the positioner near the welding table. A support plate is fixedly installed at the lower end of the outer surface of the turntable near the welding table. A workpiece bracket is fixedly installed at the upper end between adjacent support plates. First grids are fixedly installed at both ends between the inner surfaces of the two sides of the workpiece bracket. The key technical points are: this welding equipment for tower crane boom production allows for convenient and quick loading, improves welding efficiency, and facilitates cleaning of the workpiece bracket after welding, without affecting the next welding operation.

[0004] The large size of the metal components of the crane boom makes it difficult to hold and rotate them stably during welding, which affects the welding quality and time. Laser welding generates a lot of heat, and failure to dissipate heat in time can easily lead to workpiece deformation. Summary of the Invention

[0005] The present invention provides a laser welding device for tower crane booms, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: An embodiment of the present invention provides a laser welding device for a tower crane boom, comprising: a placement platform; a storage box, the storage box having a square outer shape, with one side of the storage box fixedly connected to the outside of the placement platform; an intelligent controller, the bottom of which is fixedly mounted on the top of the storage box, the intelligent controller having a control component on its exterior and a power component inside; a mounting frame, the top of the placement platform away from the storage box having a fixedly mounted mounting frame, the mounting frame having a hollow interior; a connecting column, the back of the intelligent controller having a fixedly connected connecting column, and a top plate having a fixedly connected connecting column; a cooling component, installed at the bottom of the placement platform for physical cooling during the laser welding of the boom; and a clamping component, installed outside the intelligent controller for clamping, fixing, and flipping the welding components during the welding process.

[0007] Through the above technical solution, the welding device improves heat dissipation efficiency during operation by utilizing cooling components and clamping components.

[0008] Furthermore, the cooling component includes holes, a water collection tank, a water pump, a water pipe, a control valve, and a nozzle. A groove is formed in the center of the interior of the placement platform, and multiple holes are formed inside the groove. The bottom of the placement platform is fixedly connected to the water collection tank, and the interior of the water collection tank is hollow. A water pump is fixedly installed on one side of the exterior of the water collection tank, and a water pipe is fixedly connected inside the water pump. A control valve is provided on the exterior of the water pipe. The exterior of the water pipe penetrates the interior of the storage tank, and a nozzle is fixedly installed on the exterior of the water pipe. Multiple spray holes are formed inside the nozzle.

[0009] Through the above technical solution, the cooling component is installed at the bottom of the machine tool. Its reasonable design reduces space occupation, water circulation improves utilization, reduces energy consumption, and increases the service life of the machine.

[0010] Furthermore, the clamping assembly includes a top plate, a U-shaped frame, a connecting column, a cylinder, and a flat plate. The connecting column is fixedly connected to the back of the intelligent controller. A cylinder is provided on the outside of the connecting column, and a flat plate is fixedly connected to the outside of the cylinder. Four sets of concave grooves are symmetrically arranged on the outside of the flat plate. The top plate is fixedly connected to the top of the connecting column, and a U-shaped frame is fixedly connected to all four sides of the outside of the top plate.

[0011] Through the above technical solution, the welding part is adjusted to the optimal welding position, avoiding the tedious process of frequent manual handling and repositioning of workpieces in traditional welding, significantly shortening the welding preparation time, improving the overall production efficiency, and this precise and stable clamping ensures the continuity and consistency of the weld, reduces defects such as incomplete welding and missing welding, and greatly improves the welding quality.

[0012] Furthermore, the bottom of the first circular frame is rotatably connected to a first connecting plate, and the outer end of the first connecting plate away from the first circular frame is rotatably connected to a second circular frame. The outer side of the second circular frame is fixedly connected to a second connecting plate, and the outer side of the second connecting plate is fixedly connected to a protrusion.

[0013] Through the above technical solution, the rotary connection reduces rigid friction between components, the wear of each connection node is small during movement, and it is easy to add lubricant for maintenance. At the same time, this structure makes the force on the parts more reasonable, reduces the probability of fatigue damage caused by long-term use, thereby extending the overall service life of the clamping assembly and reducing the frequency and cost of equipment maintenance and replacement.

[0014] Furthermore, the outer side of the protrusion is slidably connected to the inside of the concave groove, and a clamp is fixedly connected to the other side of the second ring frame, and the outer side of the clamp is set as an L-shaped plate.

[0015] The L-shaped plate can clamp the object using the above technical solution, making the structure more stable.

[0016] Furthermore, the groove of the placement platform is provided with multiple rollers, and support columns are fixedly connected to the bottom of the placement platform around its perimeter, with anti-friction pads fixedly installed at the bottom of the support columns.

[0017] Through the above technical solution, multiple rollers allow operators to use leverage when placing parts and also reduce resistance during the contraction and expansion of the clamping assembly.

[0018] Furthermore, an electronic screen is fixedly connected to the outer side of the intelligent controller, and an operation button is fixedly installed at the end near the electronic screen. A motor is provided on the outer side of the mounting bracket.

[0019] By adjusting the power of the fixture through the above technical solution and the intelligent control system, the work efficiency is greatly improved.

[0020] Furthermore, the mounting bracket is internally rotatably connected to a lead screw, and a block is sleeved on the outside of the lead screw. A slide rail housing is fixedly connected to one side of the top of the mounting bracket, and a track is fixedly connected inside the slide rail housing.

[0021] Through the above technical solution, the external welded structure can move freely by means of the linkage between the lead screw and the slide rail.

[0022] Furthermore, a slider is slidably connected to the outside of the track, and a fixed plate is fixedly connected to the center of the outside of the slider. An air box is fixedly connected to the top of the fixed plate, and the inside of the air box is hollow.

[0023] With the above technical solution, the protective gas inside the gas box is transported to the welding head through a pipeline, and the gas is released while the parts are being welded.

[0024] The above-described solution of the present invention has at least the following beneficial effects: This invention uses a cooling component to precisely cool the welding area through a nozzle. The water flows through a collection tank for recycling and reuse, forming a circulation system. Real-time cooling can effectively control the high heat generated by laser welding, reduce deformation of the lifting arm metal components caused by uneven heating, ensure structural dimensional accuracy, and prevent damage to core components such as the laser welder body and welding head caused by high temperature while extending the service life of the equipment.

[0025] This invention utilizes laser welding technology, which features high energy density and narrow, uniform weld seams. Combined with the clamping components of the device, it enables stable clamping and precise positioning of crane boom components, reducing displacement deviations during the welding process. The clamping components support flexible rotation of components, allowing easy adjustment of the welding angle, ensuring the integrity of complex weld seams, and reducing the problems of missed welds and incomplete welds caused by positional limitations in traditional welding. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the clamping component structure of the present invention; Figure 4 This is a schematic diagram of the concave groove structure of the present invention; Figure 5 This is a schematic diagram of the protrusion structure of the present invention; Figure 6 This is a schematic diagram of the roller structure of the present invention; Figure 7 This is a schematic diagram of the laser welder body structure of the present invention; Figure 8 This is a schematic diagram of the cooling component structure of the present invention.

[0027] Explanation of reference numerals in the attached figures: 1. Placement platform; 2. Storage box; 3. Intelligent controller; 4. Electronic screen; 5. Operation button; 6. Mounting frame; 7. Support column; 8. Top plate; 9. First connecting plate; 10. First connecting plate; 11. Clamp; 12. Connecting column; 13. Cylinder; 14. Flat plate; 15. Concave slide groove; 16. Second connecting plate; 17. Protrusion; 18. Second connecting plate; 19. Roller; 20. Hole; 21. Water collection tank; 22. Water pump; 23. Water pipe; 24. Control valve; 25. Nozzle; 26. Slide rail housing; 27. Track; 28. Slider; 29. ​​Air box; 30. Air supply pipe; 31. Laser welder body; 32. Fixing plate; 33. Lead screw; 34. Welding head. Detailed Implementation

[0028] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0029] like Figures 1 to 8 As shown, an embodiment of the present invention provides a laser welding device for a tower crane boom, comprising: a placement platform 1; a storage box 2, the storage box 2 having a square outer shape, and one side of the storage box 2 being fixedly connected to the outside of the placement platform 1; an intelligent controller 3, the bottom of the intelligent controller 3 being fixedly installed on the top of the storage box 2, the intelligent controller 3 having a control component on its exterior and a power component on its interior; a mounting frame 6, the mounting frame 6 being fixedly installed on the top of the placement platform 1 away from the storage box 2, and the mounting frame 6 having a hollow interior; a connecting column 12, the connecting column 12 being fixedly connected to the back of the intelligent controller 3, and a top plate 8 being fixedly connected to the exterior of the connecting column 12; a cooling component, installed at the bottom of the placement platform 1, used for physical cooling during the laser welding of the boom; and a clamping component, installed outside the intelligent controller 3, used for clamping, fixing, and flipping the welding components during the welding process.

[0030] In this embodiment, the components of the tower crane boom are placed on top of the placement platform 1. The components are fixed by a clamping assembly outside the intelligent controller 3. In the clamping assembly, the cylinder 13 drives the flat plate 14 to move, causing the protrusion 17 to slide in the concave groove 15. With the linkage of the first rotating frame 9, the first connecting plate 10 and the second rotating frame 16, the clamp 11 firmly clamps the components and can be flexibly rotated and adjusted to a suitable welding angle according to welding requirements. The intelligent controller 3 starts the laser welding related components through the internal power component and the external control component. The lead screw 33 in the mounting frame 6 rotates, causing the square block to move. Simultaneously, the slider 28 inside the slide rail housing 26 slides along the track 27, causing the laser welder body 31 and welding head 34 to move precisely to the welding position. The gas box 29 provides protective gas to the welding head 34 through the gas supply pipe 30, starting the laser welding operation. During the welding process, the cooling component works synchronously. The water pump 22 transports water from the collection tank 21 to the nozzle 25 through the water pipe 23. The control valve 24 adjusts the water flow. The nozzle 25 sprays water through multiple nozzles to physically cool the welding area. The cooled water flows back to the collection tank 21 through the holes 20 in the groove of the placement platform 1, realizing the recycling of water resources.

[0031] like Figures 1 to 8 As shown, the cooling assembly includes holes 20, a water collection tank 21, a water pump 22, a water pipe 23, a control valve 24, and a nozzle 25. A groove is formed in the center of the interior of the placement platform 1, and multiple holes 20 are formed inside the groove. The bottom of the placement platform 1 is fixedly connected to the water collection tank 21, and the interior of the water collection tank 21 is hollow. The water pump 22 is fixedly installed on one side of the exterior of the water collection tank 21. A water pipe 23 is fixedly connected inside the water pump 22. A control valve 24 is set on the exterior of the water pipe 23. The exterior of the water pipe 23 penetrates the interior of the storage box 2, and a nozzle 25 is fixedly installed on the exterior of the water pipe 23. Multiple spray holes are formed inside the nozzle 25.

[0032] In this embodiment, after the laser welding operation begins, the water pump 22 is started, and the cooling water in the water tank 21 is pumped into the water pipe 23 through the water pump 22. The operator can adjust the control valve 24 to flexibly control the water flow speed and flow rate in the water pipe 23 according to the heat of the welding area, so as to ensure that the cooling intensity matches the welding requirements. The water flow is delivered to the nozzle 25 through the water pipe 23. Multiple nozzles inside the nozzle 25 convert the cooling water into a uniformly distributed water flow or water mist, which is directly sprayed onto the welding area on the placement platform 1 to quickly absorb the heat generated by laser welding and prevent the workpiece from deforming due to high temperature. The cooled water flows into the groove in the center of the placement platform 1 under the action of gravity, and then seeps into the water collection tank 21 at the bottom of the placement platform 1 through multiple holes 20 in the groove, completing the closed loop of water circulation.

[0033] like Figures 1 to 5As shown, the clamping assembly includes a top plate 8, a first U-shaped frame 9, a connecting column 12, a cylinder 13, and a flat plate 14. The intelligent controller 3 is fixedly connected to the back of the connecting column 12. The cylinder 13 is provided on the outside of the connecting column 12, and the flat plate 14 is fixedly connected to the outside of the cylinder 13. Four sets of concave grooves 15 are symmetrically arranged on the outside of the flat plate 14. The top plate 8 is fixedly connected to the top of the connecting column 12, and the first U-shaped frame 9 is fixedly connected to the outside of the top plate 8. The bottom of the first U-shaped frame 9 is rotatably connected to the first connecting plate 10, and the end of the first connecting plate 10 away from the first U-shaped frame 9 is rotatably connected to the second U-shaped frame 16. The second U-shaped frame 16 is fixedly connected to the outside of the second U-shaped frame 16, and the second connecting plate 18 is fixedly connected to the outside of the second connecting plate 18. The protrusion 17 is slidably connected to the inside of the concave groove 15. The other side of the second U-shaped frame 16 is fixedly connected to the clamp 11, and the outside of the clamp 11 is set as an L-shaped plate.

[0034] In this embodiment, when it is necessary to clamp and fix the components of the tower crane boom, the intelligent controller 3 controls the cylinder 13 outside the connecting column 12 to start. The cylinder 13 extends and retracts, causing the flat plate 14 fixedly connected to it to move. The four sets of concave grooves 15 symmetrically arranged outside the flat plate 14 move accordingly. Since the protrusion 17 is slidably connected inside the concave groove 15, the movement of the flat plate 14 will cause the protrusion 17 to slide synchronously. The protrusion 17 is fixed outside the second connecting plate 18, and the second connecting plate 18 is fixedly connected to the second retaining frame 16. Therefore, the sliding of the protrusion 17 will cause the second retaining frame 16 to slide synchronously. The rotating frame 16, located away from the protrusion 17, is rotatably connected to the first rotating frame 9 via the first connecting plate 10. The first rotating frame 9 is fixed around the outside of the top plate 8, which is connected to the intelligent controller 3 via the connecting column 12. The top plate 8 remains in a fixed position, thereby driving the L-shaped clamp 11 fixedly connected to the other side to move. The clamp 11 can be opened and closed by the extension and retraction adjustment of the cylinder 13, thereby clamping and fixing the parts. At the same time, with the help of the rotation and sliding cooperation of each component, the angle of the clamp 11 can be flexibly adjusted to achieve the flipping of the parts and meet the needs of different welding positions.

[0035] like Figures 1 to 2 As shown, multiple rollers 19 are provided in the groove of the placement platform 1, and support columns 7 are fixedly connected to the bottom of the placement platform 1. Anti-friction pads are fixedly installed at the bottom of the support columns 7. An electronic screen 4 is fixedly connected to the outer side of the intelligent controller 3, and an operation button 5 is fixedly installed at the end near the electronic screen 4. A motor is provided on the outer side of the mounting bracket 6.

[0036] In this embodiment, when the lifting arm components are placed on the rollers 19, manual operation can be reduced by using the rollers 19. The bottom of the support column 7 is equipped with an anti-friction pad to make the operating platform more stable.

[0037] like Figures 1 to 7 As shown, a lead screw 33 is rotatably connected inside the mounting bracket 6, and a block is sleeved on the outside of the lead screw 33. A slide rail housing 26 is fixedly connected to one side of the top of the mounting bracket 6, and a track 27 is fixedly connected inside the slide rail housing 26. A slider 28 is slidably connected to the outside of the track 27, and a fixing plate 32 is fixedly connected to the center of the outside of the slider 28. An air box 29 is fixedly connected to the top of the fixing plate 32, and the inside of the air box 29 is hollow. A laser welder body 31 is fixedly connected to the outside of the fixing plate 32, and a welding head 34 is fixedly connected to the bottom of the laser welder body 31. An air supply pipe 30 is fixedly connected to one side of the outside of the welding head 34, and the other end of the air supply pipe 30 is fixedly connected to the outside of the air box 29.

[0038] In this embodiment, the movement of the block drives the slider 28 to slide on the track 27 via the connecting member. Because the slider 28 moves synchronously with the block, and a fixed plate 32 is fixedly connected to the center of the outside of the slider 28, the fixed plate 32 will move along the track 27 with the slider 28. The laser welder body 31 and the gas box 29 are fixed on the fixed plate 32. The gas box 29 supplies protective gas to the welding head 34 through the gas supply pipe 30. Therefore, when the fixed plate 32 moves, the laser welder body 31 and the welding head 34 will move synchronously to the target welding position. During the welding process, the rotation accuracy of the lead screw 33 controls the moving distance of the block, thereby accurately controlling the position of the welding head 34. At the same time, the cooperation between the slider 28 and the track 27 ensures the stability of the movement, enabling the welding head 34 to perform laser welding operations on the tower crane boom components along the preset trajectory, realizing an automated and high-precision welding process.

[0039] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A laser welding device for tower crane booms, characterized in that, include: Placement platform (1); Storage box (2), the exterior of storage box (2) is square, and one side of the exterior of storage box (2) is fixedly connected to the exterior of the placement platform (1); The bottom of the intelligent controller (3) is fixedly installed on the top of the storage box (2). The intelligent controller (3) has a control component on its exterior and a power component on its interior. Mounting bracket (6), the mounting bracket (6) is fixedly installed on the top of the placement platform (1) away from the storage box (2), and the interior of the mounting bracket (6) is hollow; The back of the intelligent controller (3) is fixedly connected to the connecting column (12), and the top plate (8) is fixedly connected to the outside of the connecting column (12). The cooling component is installed at the bottom of the placement platform (1) and is used for physical cooling during the laser welding of the crane arm; The clamping assembly is installed outside the intelligent controller (3) and is used to clamp, fix and flip the parts during the welding process.

2. The laser welding device for tower crane boom according to claim 1, characterized in that, The cooling assembly includes holes (20), a water collection tank (21), a water pump (22), a water pipe (23), a control valve (24), and a nozzle (25). A groove is opened in the center of the interior of the placement platform (1), and multiple holes (20) are opened inside the groove. The bottom of the placement platform (1) is fixedly connected to the water collection tank (21), and the interior of the water collection tank (21) is hollow. A water pump (22) is fixedly installed on one side of the exterior of the water collection tank (21). A water pipe (23) is fixedly connected inside the water pump (22). A control valve (24) is provided on the exterior of the water pipe (23). The exterior of the water pipe (23) penetrates the interior of the storage box (2), and a nozzle (25) is fixedly installed on the exterior of the water pipe (23). Multiple spray holes are opened inside the nozzle (25).

3. The laser welding device for tower crane boom according to claim 1, characterized in that, The clamping assembly includes a top plate (8), a U-shaped frame (9), a connecting column (12), a cylinder (13), and a flat plate (14). The back of the intelligent controller (3) is fixedly connected to the connecting column (12). The cylinder (13) is provided on the outside of the connecting column (12), and the flat plate (14) is fixedly connected to the outside of the cylinder (13). Four sets of concave sliding grooves (15) are symmetrically arranged on the outside of the flat plate (14). The top of the connecting column (12) is fixedly connected to the top plate (8), and the U-shaped frame (9) is fixedly connected to the outside of the top plate (8).

4. The laser welding device for tower crane boom according to claim 3, characterized in that, The bottom of the first connecting plate (9) is rotatably connected to a first connecting plate (10), and the outer end of the first connecting plate (10) away from the first connecting plate (9) is rotatably connected to a second connecting plate (16). The outer side of the second connecting plate (16) is fixedly connected to a second connecting plate (18), and the outer side of the second connecting plate (18) is fixedly connected to a protrusion (17).

5. The laser welding device for tower crane boom according to claim 4, characterized in that, The outside of the protrusion (17) is slidably connected to the inside of the concave groove (15), and the other side of the second ring frame (16) is fixedly connected to a clamp (11), and the outside of the clamp (11) is set as an L-shaped plate.

6. The laser welding device for tower crane boom according to claim 1, characterized in that, The placement platform (1) has multiple rollers (19) in its groove, and the bottom of the placement platform (1) is fixedly connected with support columns (7) around its perimeter. The bottom of the support columns (7) is fixedly fitted with anti-friction pads.

7. The laser welding device for tower crane boom according to claim 1, characterized in that, An electronic screen (4) is fixedly connected to one side of the intelligent controller (3), and an operation button (5) is fixedly installed at one end near the electronic screen (4). A motor is provided on one side of the mounting bracket (6).

8. The laser welding device for tower crane boom according to claim 1, characterized in that, The mounting bracket (6) is rotatably connected to a lead screw (33), and a block is sleeved on the outside of the lead screw (33). A slide rail housing (26) is fixedly connected to one side of the top of the mounting bracket (6), and a track (27) is fixedly connected inside the slide rail housing (26).

9. A laser welding device for tower crane booms according to claim 8, characterized in that, The track (27) is slidably connected to a slider (28), and a fixing plate (32) is fixedly connected to the center of the outside of the slider (28). An air box (29) is fixedly connected to the top of the fixing plate (32), and the interior of the air box (29) is hollow.

10. A laser welding device for tower crane boom according to claim 9, characterized in that, The laser welder body (31) is fixedly connected to the outside of the fixed plate (32), and the welding head (34) is fixedly connected to the bottom of the laser welder body (31). A gas supply pipe (30) is fixedly connected to one side of the outside of the welding head (34), and the other end of the gas supply pipe (30) is fixedly connected to the outside of the gas box (29).

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