Welding device for crane boom

Abstract

The welding device for the crane boom comprises a welding table, welding stations are symmetrically arranged on the left side and the right side of the top of the welding table, a multi-axis mechanical arm is slidably arranged in the middle of the top face of the welding table, and a welding head is arranged at the top end of the multi-axis mechanical arm; the device further comprises a block-up box, the block-up box is arranged at the bottom of the welding station, an adjusting seat is fixedly installed on the top face of the block-up box, and clamping mechanisms are arranged at the two ends of the top face of the adjusting seat; and the second sliding rail is arranged above the adjusting base, a carrying plate is arranged above the second sliding rail in a sliding mode, and a clamping arm capable of rotating is installed on the side of the carrying plate. According to the welding device for the crane boom, the boom can be independently supported and then positioned, clamping vibration caused by separation of a mechanical arm is reduced, the dust collection mechanism, the supporting platform and the clamping mechanism are compositely used, load abrasion of the mechanical arm is reduced, the welding precision can be improved, and the service life can be prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding processing, more particularly to the technical field of welding of crane jib, and specifically to a welding device for crane jib. BACKGROUND

[0002] The crane jib is a key load-bearing component of the crane, which is a bidirectional compression bending metal structural member supporting the hoisting rope, the material taking device or the luffing trolley. Since the crane jib has a large size, it is generally produced in multiple parts and then welded as a whole. When welding, a support structure is generally used to support and position the parts for welding. For example, the invention with the authorized announcement number CN 115922175 B relates to an intelligent welding equipment for crane jib production, which includes a first sliding seat, a mechanical arm, a welding main body, a fixing device and a second sliding seat. The first sliding seat is arranged in parallel on one side of the second sliding seat, the mechanical arm is arranged above the first sliding seat, and the welding main body is arranged on the side of the mechanical arm away from the first sliding seat. Compared with the current intelligent welding equipment for crane jib production, the invention is provided with a circulating treatment cover and a purification seat. Through the magnetic field generator and the transmission ring, the distance between the circulating treatment cover and the welding position can be adjusted according to the actual situation of the welding position, so as to minimize the connection between the welding position and the external environment without affecting the welding, preventing the spread of sparks, waste gas and waste generated during welding, and achieving the purpose of purifying waste gas through the negative ion purification pipe arranged inside the purification seat. For another example, the invention with the application publication number CN 118768804 A discloses an intelligent welding equipment for crane jib production, which solves the technical problems of low welding efficiency of crane jib and easy influence of waste gas and smoke during welding in the prior art. It includes a welding table for carrying the crane jib, a mechanical hand installed on the welding table, and a welding gun and a welding nozzle installed on the mechanical hand. The welding table includes two processing tables and a U-shaped table connected between the two processing tables. The processing table is provided with a clamping mechanism for clamping the crane jib. The mechanical hand is slidingly installed on the U-shaped table, and the end of the mechanical hand away from the U-shaped table is provided with a first annular body with a hollow structure. The invention not only facilitates the purification treatment of waste gas and smoke generated during welding, but also facilitates the spraying of purified air to form a wind curtain, so that the waste gas and smoke generated during welding are not easy to disperse, which is beneficial to improve the treatment effect of waste gas and smoke. However, in combination with the actual use of the current jib welding device, it still has some disadvantages, such as: The mechanical arm is used to hoist the parts of the jib and then clamped by the clamping table for positioning, but during use, the separation of the mechanical arm will cause jamming, which will affect the accuracy of the clamping table and the accuracy of the rotary adjustment after long-term positioning, thereby affecting the welding accuracy. Generally, the dust collection mechanism is fixed in the inside of the welding head, and the air around the welding torch is sucked through the dust collection mechanism during actual use, which affects the gas protection of the welding point position, disturbs the arc stability, affects the welding precision, and the dust collection mechanism is arranged at the end of the mechanical arm, which affects the movement speed, dynamic performance and precision of the mechanical arm, and increases the volume of the end of the mechanical arm, affecting the welding use of narrow space or complex weld of the arm support; Therefore, we propose a welding device for crane arm to solve the problems raised in the above. SUMMARY

[0003] The purpose of the present application is to provide a welding device for crane arm to solve the problems of the current welding device for crane arm raised in the above background art, which causes jamming during use, and the long-term use of the dust collection mechanism with the mechanical arm affects the welding precision.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a welding device for crane arm, comprising: a welding table, the top of the welding table is symmetrically provided with welding stations on the left and right sides, a multi-axis mechanical arm is slidably arranged in the middle of the top surface of the welding table, and a welding head is arranged at the top end of the multi-axis mechanical arm; Further comprising: A heightening box is arranged at the bottom of the welding station, an adjusting seat is fixedly installed on the top surface of the heightening box, a clamping mechanism for limiting the end of the arm support is symmetrically arranged at the top surface of the adjusting seat, and the clamping mechanism can be individually adjusted by sliding based on the adjusting mechanism symmetrically arranged inside the adjusting seat; A second sliding rail is arranged above the adjusting seat, and a load plate is slidably arranged above the second sliding rail and located inside the clamping mechanism at both ends, for carrying the bottom of the arm support; Wherein, the bottom of the load plate is provided with an inclination structure for adjusting the angle thereof, for adapting to the rotation of the arm support, and the side of the load plate is provided with a rotatable clamping arm, the inside of the clamping arm is a hollow structure, and the bottom of the clamping arm is connected with a dust collection mechanism.

[0005] Further, a cover plate is fixedly installed on the top of the adjusting seat, and a first sliding plate for supporting the clamping mechanism is slidably arranged inside the cover plate.

[0006] Further, the adjusting mechanism comprises: A partition plate is integrally fixed at the inside of the adjusting seat at the middle position; The adjusting screw is rotatably installed in the middle of the adjusting base, and the top end of the adjusting screw is connected with the output end of the adjusting motor through the end of the adjusting base. The adjusting motor is fixed on the outside of the end of the adjusting base, and the outside of the adjusting screw is symmetrically provided with the slide rod installed in parallel therewith.

[0007] Further, the clamping mechanism is composed of a fixed table and a clamping table, the bottom end of the fixed table is fixedly installed on the top surface of the first slide plate, and the inner side of the fixed table is provided with the clamping table. The fixed table comprises a bottom shell, a top shell, a rotating drum and a driving gear, the bottom shell and the top shell are fixedly connected in a bolted manner in a top-to-bottom correspondence, the bottom surface of the top shell is fixedly installed in a corresponding manner between the top surface of the first slide plate, the rotating drum is rotatably installed between the bottom shell and the top shell, the top end of the rotating drum is fixed in a corresponding manner with the end of the clamping table, the end of the rotating drum is fixed with a rotating table, the top inside of the bottom shell is rotatably installed with a driving gear that is in a corresponding engagement with the rotating table, and the top end of the driving gear is connected with the output end of the driving motor fixed on the top end of the bottom shell.

[0008] Further, the top of the top shell is inwardly protrudingly provided with a limiting rod, and the rotating drum is rotatably sleeved between the connecting groove in the end thereof and the rotating drum.

[0009] Further, the top surface of the welding table is provided with a first slide rail in the middle, the second slide plate is slidably installed above the first slide rail, and the bottom end of the multi-axis mechanical arm is fixed to the top surface of the second slide plate.

[0010] Further, the third slide plate is slidably connected above the second slide rail, the mounting bracket is fixedly installed on the top surface of the third slide plate, and the adjusting mechanism is installed between the mounting bracket and the carrier plate.

[0011] Further, the fixed shafts are symmetrically fixedly installed on the sides of the carrier plate, the bottom end of the clamping arm is rotatably connected to the outside of the fixed shaft, the inner side of the clamping arm is protrudingly provided with a protruding plate, the bottom surface of the clamping arm is integrally protrudingly provided with a worm gear in the middle, the carrier plate is fixedly provided with the clamping motor, and the output end of the clamping motor is fixedly provided with a worm that is in a corresponding engagement with the worm gear.

[0012] Further, the first guide rails are symmetrically fixedly installed on the outside of the clamping arm, the side plates are slidably connected to the inside of the first guide rails, the outside bottom surface of the side plates is protrudingly provided with the first sliding blocks, and the side plates are slidably connected through the corresponding clamping between the first sliding blocks and the first guide rails.

[0013] Further, the inner side of the clamping arm and the side plate is provided with a through groove in communication with the hollow structure inside, the bottom end of the clamping arm and the side plate is communicated with the dust collection mechanism, the dust collection mechanism comprises a pump, a tee 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 fixedly provided with the tee pipe communicated with the clamping arm and the side plate, and the output end of the pump is communicated with the cushion box through the material pipe. The inner bottom surface of the cushion box is inclined, the inner end of the cushion box is provided with a filter element, and the end of the cushion box is provided with an air outlet cylinder communicated with the filter element.

[0014] Compared with the prior art, the welding device for the crane boom has the following advantages: the boom can be independently supported and positioned, the mechanical arm can be prevented from being separated to cause jamming and vibration, the dust collection mechanism is combined with the supporting platform and the clamping mechanism to reduce the load and wear of the mechanical arm, the welding precision is improved, and the service life is prolonged. 1. The scheme is provided with a partition, an adjusting screw and a first sliding plate. A set of adjusting screws for adjusting the position of the first sliding plate are arranged at both ends of the adjusting seat, so that the position of the clamping mechanism installed above the first sliding plate can be adjusted, the clamping position of the workpiece can be changed, and local welding dead angles can be avoided. 2. The scheme is provided with a clamping table, a bottom shell, a top shell, a rotating drum, a rotating table and a drive gear. The rotating drum is installed by the bottom shell and the top shell which are separated from each other. The rotating table is driven at a low speed by the drive gear. The rotating angle of the clamping table can be adjusted. The end of the boom is clamped and limited by the clamping table, and the boom angle can be adjusted. 3. The scheme is provided with a mounting frame, a carrier plate and a fixed shaft. The two ends of the fixed shaft are respectively hingedly connected to the mounting frame and the carrier plate. The inclination angle of the carrier plate above the mounting frame can be adjusted by the extension and retraction of the fixed shaft. The bottom surface of the boom can be carried by the carrier plate. The end can be positioned after stable carrying. The jamming and vibration caused by the separation of the mechanical arm after clamping and positioning can be reduced, and the clamping precision can be avoided. 4. The scheme is provided with a clamping arm, a worm gear and a worm. The worm is driven to rotate by the clamping motor. The worm gear drive between the worm and the worm gear can be used to adjust the angle of the clamping arm, so as to clamp the boom and maintain stability. 5. The scheme is provided with a side plate, a clamping arm, a pump and a cushion box. The clamping arm and the side plate are communicated with the pump, so that dust can be collected by the pump while clamping. The side plate can slide outside the clamping arm to increase the dust collection range. The clamping arm and the side plate are used for dust collection without being too close to the welding point to avoid affecting the welding precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 This is a schematic diagram of the left-side shaft structure of the present invention; Figure 2 This is a schematic diagram of the right-side shaft structure of the present invention; Figure 3 This is a schematic diagram of the back axial structure of the present invention; Figure 4 This is a schematic side cross-sectional view of the structure of the raising box of the present invention; Figure 5 This is a schematic diagram of the disassembled left side structure of the fixing platform of the present invention; Figure 6 This is a schematic diagram of the disassembled right side structure of the fixing platform of the present invention; Figure 7 This is a front cross-sectional structural diagram of the raising box of the present invention; Figure 8 This is a schematic diagram of the disassembled structure of the mounting frame and carrier plate of the present invention; Figure 9 This is a schematic diagram of the disassembled structure of the second guide rail of the present invention; Figure 10 It is a schematic diagram of the overall structure of the multi-axis robotic arm and welding head of the present invention.

[0016] In the figure: 1, welding table; 2, raising box; 3, adjusting seat; 4, cover plate; 5, first slide; 6, partition; 7, adjusting screw; 8, adjusting motor; 9, slide bar; 10, fixed table; 11, clamping table; 12, bottom shell; 13, top shell; 14, limit rod; 15, rotating drum; 16, connecting groove; 17, rotating table; 18, driving gear; 19, driving motor; 20, first slide rail; 21, second slide; 22, multi-axis robot arm; 23, welding head; 24, second Slide rail; 25. Third slide; 26. Mounting frame; 27. Carrier plate; 28. Fixed shaft; 29. ​​Clamping arm; 30. Worm gear; 31. Clamping motor; 32. Worm; 33. Lug; 34. First guide rail; 35. Side panel; 36. First slider; 37. Through slot; 38. Pump; 39. Tee; 40. Feed pipe; 41. Support rod; 42. Front baffle; 43. Filter element; 44. Exhaust pipe; 45. Second guide rail; 46. Second slider; 47. Sliding gear. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects in the present application can be fully understood and implemented. Obviously, the described embodiments are only a part of the embodiments of the present application, not all.

[0018] Embodiment one: please refer to Figures 1-8 The present application provides the following technical solutions: A welding device for crane jib comprises 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 lead screw 7, an adjusting motor 8, a sliding rod 9, a fixing table 10, a clamping table 11, a bottom shell 12, a top shell 13, a limiting rod 14, a rotating drum 15, a connecting groove 16, a rotating table 17, a driving gear 18, a driving motor 19, a first sliding rail 20, a second sliding plate 21, a multi-axis mechanical arm 22, a welding head 23, a second sliding rail 24, a third sliding plate 25, a mounting frame 26, a load plate 27, a fixing shaft 28, a clamping arm 29, a worm gear 30, a clamping motor 31, a worm 32, a convex plate 33, a first guide rail 34, a side plate 35, a first sliding block 36, a through groove 37, a pump 38, a three-way pipe 39, a material pipe 40, a supporting rod 41, a front baffle 42, a filter element 43 and an air outlet cylinder 44. Among them, as shown in Figure 1 , Figure 2 and Figure 3 , welding stations are symmetrically arranged on the top of the welding table 1, the first sliding rail 20 is arranged on the top surface of the welding table 1, the second sliding plate 21 is slidably arranged above the first sliding rail 20, the bottom end of the multi-axis mechanical arm 22 is fixed to the top surface of the second sliding plate 21, the welding head 23 is arranged at the top end of the multi-axis mechanical arm 22, the heightening box 2 is arranged at the bottom of the welding station, the adjusting seat 3 is fixedly arranged on the top surface of the heightening box 2, the clamping mechanisms for limiting the end heads of the jibs are symmetrically arranged at the two ends of the top surface of the adjusting seat 3, and the clamping mechanisms can be individually adjusted based on the adjusting mechanisms symmetrically arranged inside the adjusting seat 3. In a specific application scenario, the welding stations are symmetrically arranged on the left and right sides of the welding table 1, which can be used for non-stop welding work with one side welding and the other side feeding, the second sliding plate 21 is slidably arranged on the top of the first sliding rail 20, which is convenient for cooperating with the multi-axis movement of the multi-axis mechanical arm 22, the position of the welding head 23 is adjusted to facilitate the adjustment of the welding points, and the clamping mechanisms at the two ends of the welding station can be individually adjusted, the positions of the clamping mechanisms are adjusted to facilitate the limiting and position change of the jib, and the welding is used. By adopting the above technical solutions, non-stop welding work can be maintained, the positions of the clamping mechanisms at different positions are adjusted to facilitate the limiting of the jib, and the dead angle of welding is avoided.

[0019] Wherein: as Figure 1 , Figure 2 and Figure 4 , the top of the adjusting seat 3 is fixedly installed with a cover plate 4, and the inside of the cover plate 4 is slidably provided with a first sliding plate 5 for supporting the clamping mechanism, the bottom of the first sliding plate 5 is connected to the outside of the adjusting mechanism provided inside the adjusting seat 3, the adjusting mechanism comprises a partition plate 6 and an adjusting lead screw 7, the partition plate 6 is integrally fixed at the middle position inside the adjusting seat 3, the adjusting lead screw 7 is rotatably installed at the middle of the adjusting seat 3, and the top end of the adjusting lead screw 7 penetrates the end of the adjusting seat 3 and is connected to the output end of the adjusting motor 8, the end of the adjusting lead screw 7 is rotatably installed at the middle of the outside of the partition plate 6, the adjusting motor 8 is fixed to the outside of the end of the adjusting seat 3, and the outside of the adjusting lead screw 7 is symmetrically provided with a slide rod 9 installed parallel thereto, and the bottom end of the first sliding plate 5 is connected to the outside of the adjusting lead screw 7 and the slide rod 9; In a specific application scenario, by starting the adjusting motor 8, the adjusting lead screw 7 can be driven to rotate by the adjusting motor 8, when the adjusting lead screw 7 rotates, the first sliding plate 5 can slide inside the adjusting seat 3, so as to adjust the position of the clamping mechanism, and the slide rod 9 is symmetrically and parallelly arranged on the side of the adjusting lead screw 7, which can keep the stable sliding use of the first sliding plate 5, the inside of the adjusting seat 3 is divided by the partition plate 6, and is provided with two groups of adjusting lead screws 7 corresponding to two groups of clamping mechanisms, which facilitates the adjustment and use of the clamping mechanism, so as to ensure the stable positioning of the arm support. By adopting the above technical scheme, the position of the clamping mechanism can be adjusted, which can be adjusted individually to ensure the stable positioning of the arm support.

[0020] Wherein: as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the clamping mechanism is composed of a fixed table 10 and a clamping table 11, the bottom end of the fixed table 10 is fixedly installed on the top surface of the first sliding plate 5, the inner side of the fixed table 10 is provided with the clamping table 11, the fixed table 10 comprises 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 in a corresponding manner, the bottom surface of the top shell 13 is fixedly installed between 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 fixedly connected to the end of the clamping table 11, the end of the rotating cylinder 15 is fixedly provided with a rotating table 17, the inside of the top of the bottom shell 12 is rotatably installed with the drive gear 18 which is correspondingly engaged with the rotating table 17, the top end of the drive gear 18 is connected to the output end of the drive motor 19 fixedly installed on the top end of the bottom shell 12, the top of the top shell 13 is inwardly protrudingly provided with a limiting rod 14, and the rotating cylinder 15 is rotatably sleeved between the rotating cylinder 15 and the clamping table 11 through the connecting groove 16 formed in the end of the rotating cylinder 15; In a specific application scenario, by separating the bottom shell 12 and the top shell 13, the rotating drum 15 is first installed inside the top shell 13, and the end of the rotating drum 15 is rotatably connected between the connecting groove 16 and the limiting rod 14 fixed on the top of the top shell 13. The drive gear 18 rotatably mounted on the top of the top shell 13 is installed between the bottom shell 12 and the top shell 13, so that the drive gear 18 is engaged with the rotating table 17 fixed on the end of the rotating drum 15. The drive motor 19 drives the drive gear 18 to rotate, and the drive gear 18 drives the rotating table 17 to rotate at a reduced speed, so that the rotating drum 15 rotates. The rotating drum 15 and the clamping table 11 are fixed, so that the rotating angle of the clamping table 11 is adjusted, and the angle of the arm support is adjusted, so that the welding at different positions is facilitated. By using the above technical scheme, the drive gear 18 drives the rotating table 17, which facilitates the rotation adjustment of the angle of the rotating drum 15 and the clamping table 11, and facilitates the angle adjustment of the arm support clamped by the clamping table 11, thereby facilitating the welding at different positions.

[0021] Among them: Figure 1 , Figure 2 , Figure 4 , Figure 7 and Figure 8 , the second sliding rail 24 is arranged above the adjusting seat 3, and the upper side of the second sliding rail 24 is slidably arranged with a load plate 27 located inside the two-end clamping mechanism, which is used to support the bottom of the arm support. The bottom of the load plate 27 is provided with an inclined structure for adjusting the angle thereof, which is used to adapt to the rotation of the arm support. Meanwhile, the side of the load plate 27 is provided with a rotatable clamping arm 29. The upper side of the second sliding rail 24 is slidably connected with a third sliding plate 25. The top surface of the third sliding plate 25 is fixedly provided with a mounting bracket 26. An adjusting mechanism is arranged between the mounting bracket 26 and the load plate 27. The adjusting mechanism is composed of a fixed shaft 28 hingedly connected between the mounting bracket 26 and the load plate 27. The fixed shaft 28 is symmetrically arranged between the mounting bracket 26 and the load plate 27. The side of the load plate 27 is symmetrically fixedly provided with the fixed shaft 28. The bottom end of the clamping arm 29 is rotatably connected to the outer side of the fixed shaft 28. The inner side of the clamping arm 29 is protrudingly provided with a lug plate 33. The bottom surface of the clamping arm 29 is integrally protrudingly provided with a worm gear 30. The bottom surface of the load plate 27 is fixedly provided with a clamping motor 31. The output end of the clamping motor 31 is fixedly provided with a worm 32 corresponding to the worm gear 30. In a specific application scenario, the position of the mounting frame 26 and the carrier plate 27 is adjusted by sliding the third sliding plate 25 above the second sliding rail 24, and the arm support is carried by the carrier plate 27. In use, the arm support is placed on the surface of the carrier plate 27, and the worm 32 is driven to rotate by the clamping motor 31. When the worm 32 rotates, the worm 32 is connected to the worm gear 30 through the meshing connection between the worm 32 and the worm gear 30, and the worm gear 30 is connected to the clamping arm 29 through the integral structure between the worm gear 30 and the clamping arm 29. The angle of the clamping arm 29 is adjusted, so that the clamping arm 29 clamps and limits the arm support through the lug plate 33. The position and angle of the carrier plate 27 above the mounting frame 26 are adjusted by the extension of the fixing shaft 28, so that the arm support is stably placed. After placement, the position of the clamping mechanism is adjusted, and the end of the arm support is clamped and fixed by the clamping table 11. The above technical scheme can stably carry the arm support, stably clamp, avoid the jamming and vibration caused by the disengagement of the mechanical arm, improve the clamping precision, reduce the damage to the arm support, and facilitate the angle adjustment of the clamping table 11 through the angle adjustment of the carrier plate 27, reduce the bearing pressure of the clamping table 11, and prolong the service life.

[0022] Among them, as Figure 7 and Figure 8 The outer side of the clamping arm 29 is symmetrically fixedly installed with a first guide rail 34, the inner side of the first guide rail 34 is slidably connected with a side plate 35, the outer bottom surface of the side plate 35 is protrudingly provided with a first sliding block 36, the side plate 35 is slidably connected through the corresponding clamping between the first sliding block 36 and the first guide rail 34, the inside of the clamping arm 29 and the side plate 35 is a hollow structure, and the bottom of the clamping arm 29 is connected with a dust collection mechanism. The inside of the clamping arm 29 and the side plate 35 is provided with a through groove 37 communicated with the inside hollow structure, the bottom end of the clamping arm 29 and the side plate 35 is communicated with 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 fixedly provided with the three-way pipe 39 communicated with the clamping arm 29 and the side plate 35, the output end of the pump 38 is communicated with the material pipe 40 and the cushion box 2, the inside bottom surface of the cushion box 2 is an inclined structure, the inside end of the cushion box 2 is provided with a filter element 43, and the end of the cushion box 2 is provided with an air outlet cylinder 44 communicated with the filter element 43, and the top end of the cushion box 2 is provided with a front baffle 42. In a specific application scenario, the side plate 35 is engaged and slides between the first sliding block 36 provided on the outer bottom of the side plate 35 and the first guide rail 34. Through the sliding of the side plate 35 outside the first guide rail 34, the side plate 35 can be extended outside the clamping arm 29. Through the communication between the clamping arm 29 and the side plate 35 through the three-way pipe 39 and the pump 38, and the communication between the clamping arm 29 and the side plate 35 and the outside through the through slot 37, the third sliding plate 25 drives the carrier plate 27 to slide during welding, so that the clamping arm 29 and the side plate 35 perform smoke dust collection. The pump 38 discharges the smoke impurities into the inside of the raised box 2 through the pipe 40, and the impurities are conveniently collected through the inclined structure of the bottom surface of the raised box 2. After the smoke is filtered by the filter core 43, it is discharged through the air outlet cylinder 44.

[0023] The above technical scheme can composite the dust collection mechanism on the bottom bearing mechanism, so that the dust collection mechanism is used separately from the mechanical arm, the assembly and modification of the mechanical arm can be reduced, the welding precision of the welding mechanical arm is avoided from being affected, and the welding dead angle is avoided.

[0024] In the embodiment, the side plate 35 is automatically slid and extended, and the specific mode is as follows: Figures 1-9 The welding device for the crane boom comprises a second guide rail 45, a second sliding block 46 and a sliding gear 47. The second guide rail 45 is integrally and symmetrically fixed to the outer side of the clamping arm 29. The second sliding block 46 is fixed to the side bottom of the convex plate 33. The second sliding block 46 is in corresponding engagement and sliding connection with the second guide rail 45. The second sliding block 46 is internally provided with the sliding gear 47 which is in corresponding engagement with the internal tooth groove of the second guide rail 45. In a specific application scenario, the driving motor inside the sliding gear 47 drives the sliding gear 47. The sliding gear 47 is in engagement with the side wall of the second guide rail 45 and can automatically drive the second sliding block 46 to slide in the second guide rail 45, so as to extend the convex plate 33. The above technical scheme can avoid the extension of the convex plate 33 from affecting the welding use of the welding head 23 and improve the welding efficiency.

[0025] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application. The contents not described in detail in the specification belong to the prior art known by those skilled in the art. In addition, the orientation terms such as up, down, left, right, front and back in the specification only represent relative positions but not absolute positions.

[0026] The standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0027] Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A welding device for a crane boom, comprising: A welding table (1), wherein welding stations are symmetrically arranged on the left and right sides of the top of the welding table (1), a multi-axis robotic arm (22) is slidably arranged in the middle of the top surface of the welding table (1), and a welding head (23) is arranged at the top end of the multi-axis robotic arm (22); It is characterized by further comprising: A raising box (2), the raising box (2) is arranged at the bottom of the welding station, an adjusting seat (3) is fixedly installed on the top surface of the raising box (2), and clamping mechanisms for limiting the end of the arm are symmetrically arranged at both ends of the top surface of the adjusting seat (3), and the clamping mechanism can be independently slidably adjusted above the adjusting seat (3) based on the adjusting mechanism symmetrically arranged inside the clamping mechanism; A second slide rail (24), the second slide rail (24) being arranged above the adjustment 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 supporting the bottom of the arm; The bottom of the carrier plate (27) is provided with an inclined structure for adjusting its angle to adapt to the rotation of the arm, and a rotatable clamping arm (29) is installed on the side of the carrier plate (27). The interior of the clamping arm (29) is a hollow structure, and the bottom of the clamping arm (29) is connected to a dust collection mechanism.

2. A crane boom welding device according to claim 1, characterized in that: A cover plate (4) is fixedly mounted on the top of the adjustment seat (3), and a first slide plate (5) for supporting the clamping mechanism is slidably provided inside the cover plate (4), and the bottom of the first slide plate (5) is connected to the outside of the adjustment mechanism provided inside the adjustment seat (3).

3. The crane boom welding device according to claim 2, characterized in that: The regulating mechanism comprises: A partition (6), the partition (6) being integrally fixed to a middle position inside the adjustment seat (3); An adjusting screw rod (7), wherein the adjusting screw rod (7) is rotatably mounted on the middle portion of the adjusting seat (3), and the top end of the adjusting screw rod (7) passes through the end of the adjusting seat (3) and is connected to the output end of the adjusting motor (8), and the bottom end of the adjusting screw rod (7) is rotatably mounted on the middle portion of the outer side of the partition (6); The adjusting motor (8) is fixed to the outer side of the end of the adjusting seat (3), and a sliding rod (9) installed parallel to the adjusting screw rod (7) is symmetrically arranged on the outer side of the adjusting screw rod (7), and the bottom end of the first slide plate (5) is connected to the outer sides of the adjusting screw rod (7) and the sliding rod (9).

4. The crane boom welding device 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 mounted on the top surface of the first slide plate (5), and the inner side surface of the fixed platform (10) is provided with a clamping platform (11); The fixed platform (10) includes a bottom shell (12), a top shell (13), a rotating drum (15) and a driving gear (18); the bottom shell (12) and the top shell (13) are fixedly connected with corresponding bolts at the top and bottom; the bottom surface of the top shell (13) is fixedly installed correspondingly to the top surface of the first slide plate (5); the rotating drum (15) is rotatably installed between the bottom shell (12) and the top shell (13); the top end of the rotating drum (15) is fixed correspondingly to the end of the clamping platform (11); a turntable (17) is fixed to the end of the rotating drum (15); a driving gear (18) is rotatably installed on the inner side of the top of the bottom shell (12) and is meshed with the turntable (17); the top end of the driving gear (18) is connected to the output end of a driving motor (19) fixed to the top end of the bottom shell (12).

5. The crane boom welding device according to claim 4, characterized in that: The top of the top shell (13) is provided with a limiting rod (14) protruding inward, and the rotating drum (15) is correspondingly rotatably sleeved with the rotating drum (15) via a connecting groove (16) provided inside the end of the rotating drum (15).

6. The crane boom welding device according to claim 1, characterized in that: A first slide rail (20) is provided in the middle of the top surface of the welding table (1), a second slide plate (21) is slidably mounted above the first slide rail (20), and the bottom end of the multi-axis robot arm (22) is fixed to the top surface of the second slide plate (21).

7. The crane boom welding device according to claim 1, characterized in that: A third slide plate (25) is slidably connected above the second slide rail (24), a mounting frame (26) is fixedly mounted on the top surface of the third slide plate (25), and the adjustment mechanism is mounted between the mounting frame (26) and the carrier plate (27), wherein the adjustment mechanism is composed of a fixed shaft (28) hinged between the mounting frame (26) and the carrier plate (27), and the fixed shaft (28) is mounted between the mounting frame (26) and the carrier plate (27) in a bilaterally symmetrical manner.

8. The crane boom welding device according to claim 1, characterized in that: A fixed shaft (28) is symmetrically fixedly mounted 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), and a convex plate (33) is protruding from the inner side surface of the clamping arm (29), and a worm gear (30) is integrally protruding from the middle of the bottom surface of the clamping arm (29), a clamping motor (31) is fixed to the bottom surface of the carrier plate (27), and a worm (32) correspondingly meshing with the worm gear (30) is fixed to the output end of the clamping motor (31).

9. The crane boom welding device according to claim 1, characterized in that: A first guide rail (34) is symmetrically fixedly mounted 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 protruding from the outer bottom surface of the side plate (35), and the side plate (35) is slidably connected to the first guide rail (34) via the corresponding engagement between the first slider (36).

10. The crane boom welding device according to claim 9, characterized in that: The inner sides of the clamping arm (29) and the side plate (35) are provided with a through groove (37) communicating with the internal hollow structure thereof. The bottom ends of the clamping arm (29) and the side plate (35) are both connected to a dust collecting mechanism. The dust collecting mechanism includes a pump (38), a three-way pipe (39) and a material pipe (40). The pump (38) is fixedly mounted on the bottom side of the mounting frame (26). The input end of the pump (38) is fixed with a three-way pipe (39) communicating between the clamping arm (29) and the side plate (35). The output end of the pump (38) is connected to the padding box (2) through the material pipe (40); The inner bottom surface of the raising box (2) is in an inclined structure, a filter element (43) is provided at the inner end of the raising box (2), and an air outlet (44) communicating with the filter element (43) is provided at the end of the raising box (2), and a front baffle (42) is provided at the top end of the raising box (2).

Images