A welding device for a crane jib

Abstract

The application discloses a welding device for a crane jib, which comprises a welding table, welding stations symmetrically arranged on the top of the welding table, a multi-axis mechanical arm slidingly arranged on the top surface of the welding table, and a welding head arranged at the top end of the multi-axis mechanical arm; and a height-raising box arranged at the bottom of the welding station, an adjusting seat fixedly arranged on the top surface of the height-raising box, clamping mechanisms arranged at the top surface of the adjusting seat, a second sliding rail arranged above the adjusting seat, a load plate slidingly arranged above the second sliding rail, and rotatable clamping arms arranged on the side of the load plate. The welding device for the crane jib can independently support and position the jib, reduce the jamming and vibration caused by the disengagement of the mechanical arm, and compoundly use the dust suction mechanism, the supporting platform and the clamping mechanism, thereby reducing the load wear of the mechanical arm, improving the welding precision, and prolonging the service life.

Description

Technical Field

[0001] This invention relates to the field of welding processing technology, and more particularly to the field of welding technology for crane booms, specifically a welding device for crane booms. Background Technology

[0002] The crane boom is a key load-bearing component of a crane. It is a bi-directional bent metal structure that supports the hoisting rope, lifting device, or luffing trolley. Due to the large size of the crane boom, it is generally made by welding multiple parts together. During welding, a support structure is usually required to support and position the parts to facilitate welding.

[0003] For example, the invention with authorization announcement number CN 115922175 B relates to an intelligent welding equipment for crane boom production. The intelligent welding equipment includes a first slide, a robotic arm, a welding body, a fixing device, and a second slide. The first slide is arranged parallel to one side of the second slide, the robotic arm is arranged above the first slide, and the welding body is arranged on the side of the robotic arm away from the first slide. Compared with the current intelligent welding equipment for crane boom production, the present invention is equipped with a circulation treatment hood and a purification seat. Through the magnetic field generator and the transmission ring, the operator can easily adjust the distance between the circulation treatment hood and the welding part according to the actual situation of the welding part. In this way, without affecting the welding, the connection between the welding part and the external environment is minimized to prevent the diffusion of welding sparks, exhaust gas and waste. The negative ion purification tube set inside the purification seat can purify the exhaust gas.

[0004] For example, the invention disclosed in application publication number CN 118768804 A provides an intelligent welding device for crane boom production, solving the technical problems of low welding efficiency and susceptibility to exhaust gas and fumes during the welding process in existing technologies. The device includes a welding table for supporting the crane boom, a robotic arm mounted on the welding table, and a welding torch and nozzle mounted on the robotic arm. The welding table comprises two processing tables and a U-shaped platform connecting the two processing tables. A clamping mechanism for holding the crane boom is installed on the processing tables. The robotic arm is slidably mounted on the U-shaped platform, and a hollow first annular structure is installed at the end of the robotic arm furthest from the U-shaped platform. This invention not only facilitates the purification of exhaust gas and fumes generated during welding but also facilitates the spraying of purified air to form an air curtain, making it difficult for exhaust gas and fumes generated during welding to disperse, thus improving the treatment effect of exhaust gas and fumes.

[0005] However, considering the current practical use of boom welding equipment, it still has certain drawbacks, such as:

[0006] The components of the boom need to be hoisted by a robotic arm and then clamped and limited by a clamping table. However, during use, the separation of the robotic arm will cause jamming. After long-term positioning use, it will affect the accuracy of the clamping table and the accuracy of rotation adjustment, which in turn will affect the welding accuracy.

[0007] Generally, the dust collection mechanism is fixed inside the welding head. However, in actual use, the air around the welding torch is sucked up by the dust collection mechanism, which will affect the gas protection at the welding point, interfere with the arc stability, and affect the welding accuracy. At the same time, the dust collection mechanism is set at the end of the robotic arm, which will affect the movement speed, dynamic performance and accuracy of the robotic arm, and will increase the volume of the end of the robotic arm, affecting its use in welding narrow spaces or complex welds.

[0008] Therefore, we propose a welding device for crane booms to solve the problems mentioned above. Summary of the Invention

[0009] The purpose of this invention is to provide a welding device for crane booms, which solves the problems mentioned in the background art regarding the current welding devices for crane booms, such as jamming during use and the impact on welding accuracy over long-term use due to the combined use of the dust extraction mechanism and the robotic arm.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a welding device for a crane boom, comprising: a welding table, welding stations symmetrically arranged on the left and right sides of the top of the welding table, a multi-axis robotic arm slidably arranged in the middle of the top surface of the welding table, and a welding head arranged at the top of the multi-axis robotic arm;

[0011] Also includes:

[0012] A heightening box is installed at the bottom of the welding station. An adjusting seat is fixedly installed on the top surface of the heightening box. The two ends of the top surface of the adjusting seat are symmetrically arranged with clamping mechanisms for limiting the end of the boom. The clamping mechanisms can be individually slidably adjusted above the adjusting seat based on the symmetrically arranged adjusting mechanisms inside.

[0013] The second slide rail is located above the adjustment seat, and a carrier plate located inside the clamping mechanism at both ends is slidably arranged above the second slide rail for supporting the bottom of the boom.

[0014] The bottom of the carrier plate is provided with an inclined structure for adjusting its angle to accommodate the rotation of the boom. At the same time, a rotatable clamping arm is installed on the side of the carrier plate. The clamping arm has a hollow internal structure and a dust collection mechanism is connected to its bottom.

[0015] Furthermore, a cover plate is fixedly installed on the top of the adjustment seat, and a first sliding plate for supporting the clamping mechanism is slidably arranged inside the cover plate. The bottom of the first sliding plate is connected to the outside of the adjustment mechanism arranged inside the adjustment seat.

[0016] Furthermore, the adjustment mechanism includes:

[0017] The partition is integrally fixed to the middle position of the inner side of the adjusting seat;

[0018] An adjusting screw is rotatably mounted in the middle of an adjusting seat, with its top end passing through the end of the adjusting seat and connected to the output end of an adjusting motor. The end of the adjusting screw is rotatably mounted in the middle of the outer side of a partition.

[0019] The adjusting motor is fixed to the outer side of the end of the adjusting seat, and the outer side of the adjusting screw is symmetrically provided with a sliding rod installed parallel to it. The bottom end of the first sliding plate is connected to the outer side of the adjusting screw and the sliding rod.

[0020] Furthermore, the clamping mechanism is composed of a fixed platform and a clamping platform. The bottom end of the fixed platform is fixedly installed on the top surface of the first sliding plate, and the clamping platform is provided on the inner side of the fixed platform.

[0021] The fixed platform includes a bottom shell, a top shell, a rotating cylinder, and a drive gear. The bottom shell and the top shell are fixedly connected by corresponding bolts. The bottom surface of the top shell is fixedly installed with the top surface of the first sliding plate. The rotating cylinder is rotatably installed between the bottom shell and the top shell. The top end of the rotating cylinder is fixed with the end of the clamping platform. A turntable is fixed to the end of the rotating cylinder. A drive gear that meshes with the turntable is rotatably installed on the inner side of the top of the bottom shell. The top end of the drive gear is connected to the output end of a drive motor fixed to the top of the bottom shell.

[0022] Furthermore, a limiting rod protrudes inward from the top of the top shell, and the rotating cylinder is rotatably connected to the rotating cylinder through a connecting groove opened inside its end.

[0023] Furthermore, a first slide rail is provided in the middle of the top surface of the welding table, and a second slide plate is slidably mounted above the first slide rail. The bottom end of the multi-axis robotic arm is fixed to the top surface of the second slide plate.

[0024] Furthermore, a third slide plate is slidably connected above the second slide rail, and a mounting frame is fixedly installed on the top surface of the third slide plate. The adjustment mechanism is installed between the mounting frame and the carrier plate, wherein the adjustment mechanism is composed of a fixed shaft hinged between the mounting frame and the carrier plate, and the fixed shaft is symmetrically installed between the mounting frame and the carrier plate.

[0025] Furthermore, the sides of the carrier plate are symmetrically fixed with fixed shafts, the bottom end of the clamping arm is rotatably connected to the outside of the fixed shaft, and the inner side of the clamping arm is provided with a protruding plate. The bottom surface of the clamping arm is integrally provided with a worm gear tooth. The bottom surface of the carrier plate is fixed with a clamping motor, and the output end of the clamping motor is fixed with a worm that meshes with the worm gear tooth.

[0026] Furthermore, a first guide rail is symmetrically fixedly installed on the outer side of the clamping arm, and a side plate is slidably connected to the inner side of the first guide rail. A first slider is provided on the outer bottom surface of the side plate, and the side plate is slidably connected to the first guide rail through the first slider.

[0027] Furthermore, the inner sides of the clamping arm and the side plate are provided with through grooves that communicate with their internal hollow structure. The bottom ends of the clamping arm and the side plate are connected to the dust collection mechanism. The dust collection mechanism includes a pump, a three-way pipe and a material pipe. The pump is fixedly installed on the bottom side of the mounting frame. The input end of the pump is fixed with a three-way pipe that communicates with the clamping arm and the side plate. The output end of the pump is connected to the raised box through the material pipe.

[0028] The bottom surface of the raised box is inclined, a filter element is installed at the inner end of the raised box, and an air outlet is installed at the end of the raised box that communicates with the filter element. A front baffle is installed at the top of the raised box.

[0029] Compared with the prior art, the present invention has at least the following beneficial effects: the welding device for the crane boom can independently support and position the boom, reducing the jamming vibration caused by the detachment of the robotic arm, and the combined use of the dust collection mechanism, support platform and clamping mechanism reduces the load wear of the robotic arm, improves welding accuracy and extends service life.

[0030] 1. This solution includes a partition, an adjusting screw, and a first sliding plate. At both ends of the adjusting seat, there is a set of adjusting screws that can adjust the position of the first sliding plate, so as to facilitate the position adjustment of the clamping mechanism installed above the first sliding plate, thereby facilitating the change of the workpiece clamping position and avoiding local welding dead corners.

[0031] 2. This solution includes a clamping platform, a bottom shell, a top shell, a rotating drum, a turntable, and a drive gear. The rotating drum is installed and used through the bottom shell and top shell, which are separate structures. The drive gear reduces the speed of the turntable, which facilitates the adjustment of the rotation angle of the clamping platform. The clamping platform also clamps and limits the boom end, which facilitates the adjustment of the boom angle.

[0032] 3. This solution includes a mounting frame, a carrier plate, and a fixed shaft. The two ends of the fixed shaft are respectively hinged to the mounting frame and the carrier plate. By extending and retracting the fixed shaft, the tilt angle of the carrier plate above the mounting frame can be adjusted. The carrier plate can support the bottom surface of the boom, and after stable support, the end can be positioned, reducing the jamming and vibration caused by the boom detaching after clamping and positioning, and avoiding affecting the clamping accuracy.

[0033] 4. This solution includes a clamping arm, worm gear, and worm. The clamping motor drives the worm to rotate, and the worm gear transmission between the worm and the worm gear facilitates the angle adjustment of the clamping arm to clamp the boom and help maintain stability.

[0034] 5. This solution includes a side plate, clamping arms, a pump, and a raised box. The corresponding connection between the clamping arms and the side plate and the pump facilitates dust extraction while clamping. The side plate can slide on the outside of the clamping arms to increase the dust extraction range. Furthermore, the dust extraction is performed using the clamping arms and the side plate without getting too close to the welding points, thus avoiding affecting the welding accuracy. Attached Figure Description

[0035] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0036] Figure 1 This is a schematic diagram of the left-side axial structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the right-side axial structure of the present invention;

[0038] Figure 3 This is a schematic diagram of the back axial structure of the present invention;

[0039] Figure 4 This is a schematic diagram of the side cross-section of the raised box of the present invention;

[0040] Figure 5 This is a schematic diagram of the disassembled left side structure of the fixing platform of the present invention;

[0041] Figure 6 This is a disassembled schematic diagram of the right side of the fixing platform of the present invention;

[0042] Figure 7 This is a front cross-sectional view of the raised box of the present invention;

[0043] Figure 8 This is a schematic diagram of the disassembled structure of the mounting bracket and carrier plate of the present invention;

[0044] Figure 9 This is a schematic diagram of the disassembled structure of the second guide rail of the present invention;

[0045] Figure 10 This is a schematic diagram of the overall structure of the multi-axis robotic arm and welding head of the present invention.

[0046] In the diagram: 1. Welding table; 2. Elevation box; 3. Adjustment seat; 4. Cover plate; 5. First sliding plate; 6. Partition plate; 7. Adjusting screw; 8. Adjusting motor; 9. Slide rod; 10. Fixed platform; 11. Clamping platform; 12. Bottom shell; 13. Top shell; 14. Limiting rod; 15. Rotary drum; 16. Connecting groove; 17. Turntable; 18. Drive gear; 19. Drive motor; 20. First slide rail; 21. Second sliding plate; 22. Multi-axis robotic arm; 23. Welding head; 24. Second... 25. Slide rail; 26. Third slide plate; 27. Mounting bracket; 28. Carrier plate; 29. ​​Fixed shaft; 30. Clamping arm; 31. Worm gear; 32. Clamping motor; 33. Worm; 34. Protruding plate; 35. First guide rail; 36. Side plate; 37. First slider; 38. Through groove; 39. Pump; 40. T-pipe; 41. Material pipe; 42. Support rod; 43. Front baffle; 44. Filter element; 45. Air outlet; 46. Second guide rail; 47. Second slider; 48. Sliding gear. Detailed Implementation

[0047] 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, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0048] Example 1: Please refer to Figures 1-8 The present invention provides the following technical solution:

[0049] A welding device for a crane boom includes: a welding table 1, a heightening box 2, an adjusting seat 3, a cover plate 4, a first sliding plate 5, a partition plate 6, an adjusting screw 7, an adjusting motor 8, a sliding rod 9, a fixed platform 10, a clamping platform 11, a bottom shell 12, a top shell 13, a limiting rod 14, a rotating drum 15, a connecting groove 16, a turntable 17, a drive gear 18, a drive motor 19, a first slide rail 20, a second sliding plate 21, a multi-axis robotic arm 22, a welding head 23, a second slide rail 24, a third sliding plate 25, a mounting frame 26, a carrier plate 27, a fixed shaft 28, a clamping arm 29, a worm gear 30, a clamping motor 31, a worm 32, a protruding plate 33, a first guide rail 34, a side plate 35, a first slider 36, a through groove 37, a pump 38, a tee pipe 39, a material pipe 40, a support rod 41, a front baffle 42, a filter element 43, and an air outlet 44.

[0050] Among them: such as Figure 1 , Figure 2 and Figure 3 In the welding station 1, welding stations are symmetrically arranged on the left and right sides of the top. A first slide rail 20 is arranged in the middle of the top surface of the welding station 1. A second slide plate 21 is slidably installed above the first slide rail 20. The bottom end of the multi-axis robotic arm 22 is fixed to the top surface of the second slide plate 21, and a welding head 23 is arranged at the top of the multi-axis robotic arm 22. The shim box 2 is arranged at the bottom of the welding station. An adjustment seat 3 is fixedly installed on the top surface of the shim box 2. The two ends of the top surface of the adjustment seat 3 are symmetrically arranged with clamping mechanisms for limiting the end of the arm. The clamping mechanisms can be individually slidably adjusted based on the symmetrically arranged adjustment mechanisms inside the adjustment seat 3.

[0051] In specific application scenarios, welding stations are symmetrically arranged on the left and right sides of welding station 1, which can be used for non-stop welding work by welding on one side and feeding on the other. The second slide plate 21 is slidably set on the top of the first slide rail 20 to facilitate the multi-axis movement of the multi-axis robotic arm 22, and to facilitate the adjustment of the position of the welding head 23 for welding point adjustment. Furthermore, the two ends of the welding station are equipped with independently adjustable clamping mechanisms, which can be adjusted to limit and change the position of the arm for welding purposes.

[0052] By adopting the above technical solution, welding work can be maintained without stopping. By adjusting the position of the clamping mechanism at different positions, the boom can be easily limited, avoiding welding dead angles.

[0053] Among them: such as Figure 1 , Figure 2 and Figure 4 In the middle, a cover plate 4 is fixedly installed on the top of the adjusting seat 3, and a first sliding plate 5 for supporting the clamping mechanism is slidably arranged inside the cover plate 4. The bottom of the first sliding plate 5 is connected to the outside of the adjusting mechanism arranged inside the adjusting seat 3. The adjusting mechanism includes a partition plate 6 and an adjusting screw 7. The partition plate 6 is integrally fixed in the middle of the inner side of the adjusting seat 3. The adjusting screw 7 is rotatably installed in the middle of the adjusting seat 3, and the top end of the adjusting screw 7 passes through the end of the adjusting seat 3 and is connected to the output end of the adjusting motor 8. The end of the adjusting screw 7 is rotatably installed in the middle of the outer side of the partition plate 6. The adjusting motor 8 is fixed on the outer side of the end of the adjusting seat 3. Slide rods 9 are symmetrically arranged and installed parallel to the adjusting screw 7 on the outer side. The bottom end of the first sliding plate 5 is connected to the outer side of the adjusting screw 7 and the slide rod 9.

[0054] In specific application scenarios, by starting the adjusting motor 8, the adjusting motor 8 can drive the adjusting screw 7 to rotate. When the adjusting screw 7 rotates, it can drive the first slide plate 5 to slide inside the adjusting seat 3, so as to adjust the position of the clamping mechanism. At the same time, the adjusting screw 7 is symmetrically and parallelly arranged with slide rods 9 on its side, which can keep the first slide plate 5 stable in sliding. The interior of the adjusting seat 3 is divided by the partition 6 and is provided with two sets of adjusting screws 7 corresponding to the two sets of clamping mechanisms, so as to facilitate the adjustment of the clamping mechanism and ensure the use of the boom clamping.

[0055] The above technical solution facilitates the position adjustment of the clamping mechanism, allowing for individual adjustment and ensuring stable positioning of the boom.

[0056] Among them: such as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In this case, the clamping mechanism is composed of a fixed platform 10 and a clamping platform 11. The bottom end of the fixed platform 10 is fixedly installed on the top surface of the first slide plate 5. The clamping platform 11 is provided on the inner side of the fixed platform 10. The fixed platform 10 includes a bottom shell 12, a top shell 13, a rotating cylinder 15 and a drive gear 18. The bottom shell 12 and the top shell 13 are fixedly connected by corresponding bolts. The bottom surface of the top shell 13 is fixedly installed with the top surface of the first slide plate 5. The rotating cylinder 15 is rotatably installed between the bottom shell 12 and the top shell 13. The top end of the rotating cylinder 15 is fixed with the end of the clamping platform 11. A turntable 17 is fixed to the end of the rotating cylinder 15. A drive gear 18 that meshes with the turntable 17 is rotatably installed on the inner side of the top of the bottom shell 12. The top end of the drive gear 18 is connected to the output end of the drive motor 19 fixed on the top of the bottom shell 12. A limit rod 14 is provided on the top of the top shell 13 protruding inward. The rotating cylinder 15 is rotatably sleeved with the rotating cylinder 15 through the connecting groove 16 opened inside its end.

[0057] In specific application scenarios, by separating the bottom shell 12 and the top shell 13, the rotating drum 15 is first installed inside the top shell 13. The end of the rotating drum 15 is rotatably connected to the limiting rod 14 fixed on the top of the top shell 13 through the connecting groove 16. Through the corresponding installation between the bottom shell 12 and the top shell 13, the drive gear 18 rotatably installed on the top of the top shell 13 is meshed with the turntable 17 fixed at the end of the rotating drum 15. The drive motor 19 drives the drive gear 18 to rotate, and the drive gear 18 decelerates the turntable 17 to rotate, so that the rotating drum 15 can rotate. The fixing between the rotating drum 15 and the clamping platform 11 makes it easy to adjust the rotation angle of the clamping platform 11, so as to adjust the angle of the boom and facilitate welding at different positions.

[0058] By adopting the above technical solution, the turntable 17 is driven by the drive gear 18, which facilitates the rotation adjustment of the angle of the drum 15 and the clamping platform 11, and facilitates the angle adjustment of the boom clamped by the clamping platform 11, thereby facilitating welding in different positions.

[0059] Among them: such as Figure 1 , Figure 2 , Figure 4 , Figure 7 and Figure 8 In this configuration, the second slide rail 24 is positioned above the adjusting seat 3, and a carrier plate 27 located inside the clamping mechanisms at both ends is slidably mounted above the second slide rail 24 for supporting the bottom of the boom. The bottom of the carrier plate 27 has an inclined structure for angle adjustment to accommodate boom rotation. Rotatable clamping arms 29 are mounted on the sides of the carrier plate 27. A third sliding plate 25 is slidably connected above the second slide rail 24, and a mounting bracket 26 is fixedly mounted on the top surface of the third sliding plate 25. An adjusting mechanism is installed between the mounting bracket 26 and the carrier plate 27. The adjusting mechanism consists of… A fixed shaft 28 is formed between the mounting frame 26 and the carrier plate 27. The fixed shaft 28 is symmetrically installed between the mounting frame 26 and the carrier plate 27. The fixed shaft 28 is symmetrically fixed on the side of the carrier plate 27. The bottom end of the clamping arm 29 is rotatably connected to the outside of the fixed shaft 28. A protruding plate 33 is provided on the inner side of the clamping arm 29. A worm gear tooth 30 is integrally protruding in the middle of the bottom surface of the clamping arm 29. A clamping motor 31 is fixed on the bottom surface of the carrier plate 27. A worm 32 that meshes with the worm gear tooth 30 is fixed at the output end of the clamping motor 31.

[0060] In specific application scenarios, the sliding of the third slide plate 25 above the second slide rail 24 facilitates the adjustment of the position of the mounting frame 26 and the carrier plate 27, and the carrier plate 27 supports the boom. In use, the boom is placed on the surface of the carrier plate 27, and the clamping motor 31 drives the worm 32 to rotate. When the worm 32 rotates, the meshing connection between the worm 32 and the worm gear 30, and the integrated structure between the worm gear 30 and the clamping arm 29, facilitate the adjustment of the angle of the clamping arm 29. This allows the clamping arm 29 to clamp and limit the boom through the protrusion plate 33. The extension and retraction of the fixed shaft 28 adjusts the angle of the carrier plate 27 above the mounting frame 26 to ensure stable placement of the boom. After placement, the position of the clamping mechanism is adjusted, and the clamping platform 11 clamps and fixes the end of the boom.

[0061] The above technical solution can stably support the boom and ensure stable clamping, avoiding the jamming and vibration caused by the mechanical arm detaching after clamping. It can improve clamping accuracy, reduce damage to the boom, and at the same time, the angle adjustment of the carrier plate 27 facilitates the angle adjustment of the auxiliary clamping platform 11, reduces the load pressure on the clamping platform 11, and extends its service life.

[0062] Among them, such as Figure 7 and Figure 8 In the middle, a first guide rail 34 is symmetrically fixedly installed on the outer side of the clamping arm 29. A side plate 35 is slidably connected to the inner side of the first guide rail 34. A first slider 36 is provided on the outer bottom surface of the side plate 35. The side plate 35 is slidably connected to the first guide rail 34 through the corresponding engagement of the first slider 36. The clamping arm 29 and the side plate 35 have hollow internal structures. A vacuuming mechanism is connected to the bottom of the clamping arm 29. A through groove 37 communicating with the hollow internal structure is opened on the inner side of both the clamping arm 29 and the side plate 35. The bottom ends of the clamping arm 29 and the side plate 35 are connected to the vacuum cleaner. The dust collection mechanism includes a pump 38, a three-way pipe 39, and a feed pipe 40. The pump 38 is fixedly installed on the bottom side of the mounting frame 26. The input end of the pump 38 is fixed with a three-way pipe 39 that communicates with the clamp arm 29 and the side plate 35. The output end of the pump 38 is connected to the raised box 2 through the feed pipe 40. The bottom surface of the raised box 2 is inclined. A filter element 43 is provided at the end of the raised box 2. An air outlet 44 that communicates with the filter element 43 is provided at the end of the raised box 2. A front baffle 42 is provided at the top of the raised box 2.

[0063] In specific application scenarios, the side plate 35 engages and slides with the first guide rail 34 through the first slider 36 protruding from its outer bottom. By sliding the side plate 35 outside the first guide rail 34, the side plate 35 can be extended outside the clamping arm 29. The clamping arm 29 and the side plate 35 are connected to the pump 38 through the three-way pipe 39. The clamping arm 29 and the side plate 35 have through grooves 37 to connect with the outside, so that when welding, the third sliding plate 25 drives the carrier plate 27 to slide, thereby performing fume extraction through the clamping arm 29 and the side plate 35. The pump 38 discharges the fume impurities into the interior of the raised box 2 through the material pipe 40. The inclined structure of the bottom surface of the raised box 2 facilitates the collection of impurities. After being filtered by the filter element 43, the fume is discharged through the exhaust pipe 44.

[0064] By adopting the above technical solution, the dust collection mechanism can be integrated into the bottom support mechanism, allowing the dust collection mechanism to be used independently of the robotic arm. This reduces the need for assembly and modification of the robotic arm, avoids affecting the welding accuracy of the welding robotic arm, and avoids welding dead angles.

[0065] Example 2: This example differs from Example 1 in that it provides a method for the side panel 35 to automatically slide out, such as... Figures 1-9The present invention provides the following technical solution: a welding device for a crane boom, further comprising: a second guide rail 45, a second slider 46 and a sliding gear 47, wherein the second guide rail 45 is integrally and symmetrically fixed on the outer side of the clamping arm 29, the second slider 46 is fixed on the bottom side of the protrusion plate 33, the second slider 46 and the second guide rail 45 are correspondingly engaged and slidably connected, and the sliding gear 47 that meshes with the internal tooth groove of the second guide rail 45 is installed inside the second slider 46;

[0066] In specific application scenarios, the sliding gear 47 is driven by the drive motor inside the sliding gear 47. The sliding gear 47 automatically drives the second slider 46 to slide inside the second guide rail 45 by meshing with the side wall of the second guide rail 45, so as to extend the protrusion 33 for use.

[0067] By adopting the above technical solution, the protrusion of the protruding plate 33 can be avoided from affecting the welding use of the welding head 23, thereby improving welding efficiency.

[0068] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention; the contents not described in detail in this specification belong to the prior art known to those skilled in the art; in addition, the directional terms such as up, down, left, right, front, and back in the text only represent their relative positions and not absolute positions.

[0069] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0070] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding apparatus for a crane boom, comprising: Welding station (1), welding stations are symmetrically arranged on the left and right sides of the top of the welding station (1), a multi-axis robotic arm (22) is slidably arranged in the middle of the top surface of the welding station (1), and a welding head (23) is arranged at the top of the multi-axis robotic arm (22). Its characteristic is that it further includes: Elevation box (2), the elevation box (2) is set at the bottom of the welding station, the top surface of the elevation box (2) is fixedly installed with an adjustment seat (3), the two ends of the top surface of the adjustment seat (3) are symmetrically arranged with clamping mechanisms for limiting the end of the boom, the clamping mechanism can be individually slidably adjusted above the adjustment seat (3) based on the symmetrically arranged adjustment mechanism inside it; The welding table (1) has a first slide rail (20) in the middle of its top surface, and a second slide plate (21) is slidably mounted above the first slide rail (20). The bottom end of the multi-axis robotic arm (22) is fixed to the top surface of the second slide plate (21). The second slide rail (24) is located above the adjusting seat (3), and a carrier plate (27) located inside the clamping mechanism at both ends is slidably arranged above the second slide rail (24) for bearing the bottom of the boom. The bottom of the carrier plate (27) is provided with an inclined structure for adjusting its angle to accommodate the rotation of the boom. Meanwhile, a rotatable clamping arm (29) is installed on the side of the carrier plate (27). The clamping arm (29) has a hollow structure inside and a dust collection mechanism is connected to the bottom of the clamping arm (29). The clamping arm (29) is symmetrically fixedly mounted with a first guide rail (34), and a side plate (35) is slidably connected to the inner side of the first guide rail (34). The bottom surface of the side plate (35) is provided with a first slider (36) protruding outward. The side plate (35) is slidably connected to the first guide rail (34) through the first slider (36). The inner sides of the clamping arm (29) and the side plate (35) are provided with through grooves (37) that communicate with their internal hollow structure. The bottom ends of the clamping arm (29) and the side plate (35) are connected to the dust collection mechanism. The dust collection mechanism includes a pump (38), a three-way pipe (39) and a material pipe (40). The pump (38) is fixedly installed on the bottom side of the mounting frame (26). The input end of the pump (38) is fixed with a three-way pipe (39) that communicates with the clamping arm (29) and the side plate (35). The output end of the pump (38) is connected to the raised box (2) through the material pipe (40). The bottom surface of the raised box (2) is inclined. A filter element (43) is provided at the end of the raised box (2), and an air outlet (44) connected to the filter element (43) is provided at the end of the raised box (2). A front baffle (42) is provided at the top of the raised box (2).

2. A welding device for a crane boom according to claim 1, characterized in that: The top of the adjusting seat (3) is fixedly installed with a cover plate (4), and a first sliding plate (5) for supporting the clamping mechanism is slidably arranged inside the cover plate (4). The bottom of the first sliding plate (5) is connected to the outside of the adjusting mechanism arranged inside the adjusting seat (3).

3. A welding device for a crane boom according to claim 2, characterized in that: The adjustment mechanism includes: Partition (6), the partition (6) is integrally fixed in the middle of the inner side of the adjusting seat (3); Adjusting screw (7), the adjusting screw (7) is rotatably installed in the middle of the adjusting seat (3), and the top end of the adjusting screw (7) passes through the end of the adjusting seat (3) and is connected to the output end of the adjusting motor (8). The end of the adjusting screw (7) is rotatably installed in the middle of the outer side of the partition (6). The regulating motor (8) is fixed on the outer side of the end of the regulating seat (3). The outer side of the regulating screw (7) is symmetrically provided with a slide rod (9) installed parallel to it. The bottom end of the first slide plate (5) is connected to the outer side of the regulating screw (7) and the slide rod (9).

4. A welding device for a crane boom according to claim 1, characterized in that: The clamping mechanism is composed of a fixed platform (10) and a clamping platform (11). The bottom end of the fixed platform (10) is fixedly installed on the top surface of the first sliding plate (5), and the clamping platform (11) is provided on the inner side of the fixed platform (10). The fixed platform (10) includes a bottom shell (12), a top shell (13), a rotating cylinder (15), and a drive gear (18). The bottom shell (12) and the top shell (13) are fixedly connected by corresponding bolts. The bottom surface of the top shell (13) is fixedly installed with the top surface of the first sliding plate (5). The rotating cylinder (15) is rotatably installed between the bottom shell (12) and the top shell (13). The top end of the rotating cylinder (15) is fixed with the end of the clamping platform (11). A turntable (17) is fixed at the end of the rotating cylinder (15). A drive gear (18) that meshes with the turntable (17) is rotatably installed on the inner side of the top of the bottom shell (12). The top end of the drive gear (18) is connected to the output end of the drive motor (19) fixed on the top of the bottom shell (12).

5. A welding device for a crane boom according to claim 4, characterized in that: The top of the top shell (13) protrudes inward and is provided with a limiting rod (14). The rotating cylinder (15) is rotatably connected to the rotating cylinder (15) through a connecting groove (16) opened inside its end.

6. A welding apparatus for a crane boom as defined in claim 1, wherein: A third slide plate (25) is slidably connected above the second slide rail (24). A mounting bracket (26) is fixedly installed on the top surface of the third slide plate (25). The adjustment mechanism is installed between the mounting bracket (26) and the carrier plate (27). The adjustment mechanism is composed of a fixed shaft (28) hinged between the mounting bracket (26) and the carrier plate (27). The fixed shaft (28) is symmetrically installed between the mounting bracket (26) and the carrier plate (27).

7. A welding apparatus for a crane boom as defined in claim 1, wherein: The side of the carrier plate (27) is symmetrically fixed with a fixed shaft (28). The bottom end of the clamping arm (29) is rotatably connected to the outside of the fixed shaft (28). The inner side of the clamping arm (29) is provided with a protruding plate (33). The bottom surface of the clamping arm (29) is integrally provided with a worm gear tooth (30). The bottom surface of the carrier plate (27) is fixed with a clamping motor (31). The output end of the clamping motor (31) is fixed with a worm (32) that meshes with the worm gear tooth (30).

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