Portal welding mobile gas supporting device

Abstract

The application provides a gantry welding mobile gas supporting device, which solves the problem of temperature rise affecting the gas protection effect and the like, and comprises a gas supporting box, the gas supporting box is installed on a supporting beam, the gas supporting box is internally provided with a protective gas outlet assembly and an adjusting assembly for adjusting the position of the protective gas outlet assembly, the gas supporting box is internally provided with a cooling assembly opposite to the protective gas outlet assembly, and the gas supporting box is installed with a gas collecting assembly opposite to the protective gas outlet assembly. The application has the advantages of good gas protection effect, stable structure and the like.

Description

A gantry welding mobile air support device Technical Field

[0001] This invention belongs to the technical field of gantry welding equipment, and specifically relates to a gantry welding mobile air support device. Background Technology

[0002] A bridge-type welding manipulator consists of a beam and two supporting and traveling trolleys. The welding head can move laterally along the beam, and the trolleys can move longitudinally along the track. A gantry-type welding manipulator has an additional gantry frame compared to the bridge-type. The welding head can move laterally on the gantry beam or on a separate crossbeam that can move up and down along the gantry posts. The latter can be used for welding structures of different heights. Bridge-type welding manipulators are suitable for welding large-area flat plate splices or ship hull plate frame structures. Existing gantry welding manipulators, in actual pipe welding, suffer from gas leakage due to temperature rise causing pipe deformation, thus failing to provide gas protection.

[0003] To address the shortcomings of existing technologies, people have conducted long-term research and proposed various solutions. For example, Chinese patent literature discloses a back gas protection device for pipeline welding [201220273994.0], which includes a track extending along the length of the pipeline support cantilever, a back gas trolley slidably mounted on the track, a drive device for driving the back gas trolley, a gas box mounted on the back gas trolley, and a gas pipe. An air outlet is provided at the top of the gas box, and the air outlet end of the gas pipe communicates with the inner cavity of the gas box. The pipeline welding back gas protection device provided by this invention is equipped with a back gas trolley that moves synchronously with the welding torch, and a gas box is installed on the back gas trolley. Inert gas is delivered to the gas box through the gas pipe to achieve the purpose of local back gas protection.

[0004] The above solution has solved the problem of welding gas protection to some extent, but it still has many shortcomings, such as the effect of temperature rise on gas protection. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a reasonably designed gantry welding mobile gas support device with good gas protection effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gantry welding mobile gas support device, including a gas support box, the gas support box is installed on a support beam, the gas support box has a built-in protective gas outlet component and an adjustment component for adjusting the position of the protective gas outlet component, the gas support box has a built-in cooling component opposite to the protective gas outlet component, and the gas support box is equipped with a gas collecting component opposite to the protective gas outlet component.

[0007] In the aforementioned gantry welding mobile gas support device, the shielding gas outlet assembly includes an outlet pipe installed inside the gas support box. The outlet pipe is equipped with a gas distribution assembly and is connected to a gas injection pipe. The gas injection pipe extends to the outside of the gas support box and passes through the support beam. The gas distribution assembly includes a gas distribution pipe attached to the inner wall of the gas support box and is connected to an adapter. The gas collecting assembly includes symmetrically arranged gas collecting plates. Gas collecting frames are arranged in a matrix between the gas collecting plates, and each gas collecting frame corresponds to an adapter.

[0008] In the aforementioned gantry welding mobile gas support device, the adjustment assembly includes an adjustment shaft rotatably mounted on a support beam, a gas support box slidably connected to the support beam, adjustment gears at both ends of the adjustment shaft, an adjustment rack in the gas support box meshing with the adjustment gears, and a drive assembly connected to the adjustment shaft. The drive assembly includes a drive motor mounted on the support beam, which is connected to the adjustment shaft via a universal joint. Downward-extending limiting plates are provided on both sides of the gas support box, each with a limiting groove for the adjustment shaft to pass through, and the lower end of the limiting plate is slidably connected to the support beam.

[0009] In the aforementioned gantry welding mobile gas support device, the cooling assembly includes a cooling water inlet pipe and a cooling water outlet pipe that penetrate into the gas support box. The cooling water inlet pipe and the cooling water outlet pipe are connected to the cooling sleeve and penetrate into the support beam. A spiral cooling channel is provided inside the cooling sleeve, and the protective gas outlet assembly passes through the cooling channel. A temperature sensor is provided inside the gas support box that is opposite to the cooling sleeve.

[0010] In the aforementioned gantry welding mobile air support device, a sliding guide mechanism is provided at the end of the support beam, and a heat dissipation mechanism is built into the support beam.

[0011] In the aforementioned gantry welding mobile air support device, the sliding guide mechanism includes a sliding seat installed at the end of the support beam. The lower end of the sliding seat is slidably connected to the sliding guide rail, and the sliding seat is equipped with a lifting component. An adaptation component is provided between the support beam and the sliding seat.

[0012] In the aforementioned gantry welding mobile air support device, a mobile motor is installed inside the sliding seat. The mobile motor is connected to a mobile roller installed at the bottom of the sliding seat via a gear set. The sliding guide rail has a moving groove for the mobile roller to fit and press against the sliding seat. The lifting assembly includes a mounting frame on the sliding seat, in which a lifting frame is slidably mounted vertically. A support beam passes through the lifting frame. The two sides of the sliding seat are connected to the lifting frame via lifting screws. The adaptation assembly includes an electric push rod at the upper end of the lifting frame. The telescopic end of the electric push rod is fixed with a locking pressure plate opposite to the support beam.

[0013] In the aforementioned gantry welding mobile air support device, the heat dissipation mechanism includes an air guide assembly disposed inside the support beam, a heat dissipation fan connected to the air guide assembly installed at the end of the support beam, and heat conduction components distributed on the inner wall of the support beam opposite to the air guide assembly.

[0014] In the aforementioned gantry welding mobile air support device, the air guiding assembly includes a pair of air inlet ducts and air outlet ducts. The air inlet ducts and air outlet ducts are respectively provided with air guiding plates arranged axially and staggered left and right. The air guiding plates are inclined relative to the extension direction of the air inlet ducts and air outlet ducts. Air guiding blocks are respectively provided between adjacent air guiding plates arranged axially, and a return channel is left between the air guiding blocks and the air guiding plates. The heat conducting assembly includes a heat conducting frame opening provided on the side wall of the support beam. The heat conducting frame opening is closed by a heat conducting plate, and heat conducting ribs are distributed on the outward side of the heat conducting plate.

[0015] In the aforementioned gantry welding mobile gas support device, the support beam has a polygonal cross-section, and the ends of the support beam are closed by cover plates. A protective cover that covers the gas support box is installed on the support beam.

[0016] Compared with existing technologies, the advantages of this invention are as follows: the gas support box extends from the support beam into the inside of the pipe body and is opposite to the weld seam. Cooled protective gas is introduced during the welding process, which effectively reduces the impact of high temperature on the welding quality of the pipe body; the gas support box is fully fitted with the inner wall of the pipe body using the adjustment component, and is adjusted according to the changes in the weld seam; the positions of the support beam and the gas support box are adjustable, which can adapt to the welding of pipe bodies with different diameters and lengths. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the structure of the present invention;

[0018] Figure 2 is another structural schematic diagram of the present invention;

[0019] Figure 3 is a schematic diagram of the heat dissipation mechanism of the present invention;

[0020] Figure 4 is a schematic diagram of another structure of the heat dissipation mechanism of the present invention;

[0021] Figure 5 is a structural cross-sectional view of the support beam of the present invention;

[0022] Figure 6 is a structural cross-sectional view of the gas collection assembly of the present invention;

[0023] Figure 7 is a structural cross-sectional view of the adjustment component of the present invention;

[0024] In the diagram, the components are: 1. Air support box; 2. Support beam; 21. Cover plate; 22. Protective cover; 3. Protective air outlet assembly; 31. Outlet pipe; 32. Air injection pipe; 33. Air distribution pipe; 34. Adapter; 4. Adjustment assembly; 41. Adjustment shaft; 42. Adjustment gear; 43. Adjustment rack; 44. Drive motor; 45. Universal joint; 46. Limiting plate; 47. Limiting groove; 5. Cooling assembly; 51. Cooling water inlet pipe; 52. Cooling water outlet pipe; 53. Cooling sleeve; 54. Cooling channel; 6. Air collection assembly; 7. Air collection plate. 61. Air collection frame opening; 62. Sliding guide mechanism; 7. Sliding seat; 71. Sliding guide rail; 72. Moving motor; 73. Speed ​​change gear set; 74. Moving roller; 75. Moving groove; 76. Mounting frame opening; 77. Lifting frame; 78. Electric push rod; 781. Locking pressure plate; 782. Heat dissipation mechanism; 8. Heat dissipation fan; 81. Air inlet duct; 82. Air outlet duct; 83. Air guide plate; 84. Air guide block; 85. Return channel; 86. Heat conduction frame opening; 87. Heat conduction plate; 88. Heat conduction ribs; 89. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] As shown in Figures 1-7, a gantry welding mobile gas support device includes a gas support box 1 with a closed structure for exporting shielding gas relative to the weld seam, providing good welding protection for the inner side of the pipe body. The gas support box 1 is mounted on a support beam 2 near its end. The gas support box 1 contains a shielding gas export component 3 and an adjusting component 4 for adjusting the position of the shielding gas export component 3. The adjusting component 4 drives the gas support box 1 to shift relative to the support beam 2, ensuring that the gas support box 1 is in close contact with the inner wall of the pipe body, and adjusting according to changes in the weld seam. The gas support box 1 contains a cooling component 5 opposite to the shielding gas export component 3, and a gas collecting component 6 opposite to the shielding gas export component 3. The cooling component 5 and the gas collecting component 6 concentrate and export the cooled shielding gas, ensuring it fully covers the electrode.

[0028] Specifically, unlike existing gas-shielded welding structures that combine the welding nozzle and the shielding gas nozzle, the shielding gas outlet assembly 3 in this application includes an outlet pipe 31 installed inside the gas support box 1. The outlet pipe 31 is equipped with a gas distribution assembly to guide the shielding gas to the welding point of the pipe body. The outlet pipe 31 is connected to an injection pipe 32, which extends to the outside of the gas support box 1 and passes through the support beam 2. The injection pipe 32 is connected to an external shielding gas supply structure, and excess shielding gas can be recycled using pipelines located inside the support beam 2.

[0029] To ensure that the protective gas fully fills the area around the welded joint of the pipe body, the gas distribution assembly specifically includes a gas distribution pipe 33 attached to the inner wall of the gas support box 1. The gas distribution pipe 33 is connected to an adapter 34 for connecting corresponding injection heads, and the injection direction of the protective gas is further adjusted using each injection head. The gas collecting assembly 6 includes symmetrically arranged gas collecting plates 61, with gas collecting frame openings 62 arranged in a matrix between the gas collecting plates 61. Each gas collecting frame opening 62 corresponds one-to-one with an adapter 34. The gas collecting frame openings 62 limit the adapter 34, and multiple sets of adapters 34 can be connected to external injection heads as needed.

[0030] To further ensure a proper fit between the air support box 1 and the inner wall of the tube, an adjustment assembly 4 is introduced to fine-tune its orientation. The adjustment assembly 4 includes an adjustment shaft 41 rotatably mounted on the support beam 2. The air support box 1 is slidably connected to the support beam 2. Adjustment gears 42 are respectively installed at both ends of the adjustment shaft 41. The air support box 1 has an adjustment rack 43 that meshes with the adjustment gears 42. The adjustment shaft 41 is connected to a drive assembly. When the adjustment shaft 41, under the action of the drive assembly, drives the adjustment rack 43 to mesh with the adjustment gears 42, the air support box 1 slides relative to the support beam 2. The paired arrangement of the adjustment gears 42 ensures stable sliding at both ends of the air support box 1.

[0031] The drive assembly includes a drive motor 44 mounted on the support beam 2. The output end of the drive motor 44 is equipped with a gearbox and is connected to the adjusting shaft 41 via a universal joint 45, ensuring low-speed, high-torque transmission between the universal joint 45 and the adjusting shaft 41. The air support box 1 has downward-extending limiting plates 46 on both sides. Each limiting plate 46 has a limiting groove 47 for the adjusting shaft 41 to pass through. The lower end of the limiting plate 46 is slidably connected to the support beam 2. The limiting groove 47 and the limiting plate 46 typically employ a T-shaped structure for self-locking, preventing the air support box 1 from detaching from the support beam 2 during sliding. Alternatively, other self-locking structures can be used for the limiting groove 47 and the limiting plate 46.

[0032] Furthermore, the cooling assembly 5 is arranged independently from the protective gas outlet assembly 3. Specifically, it includes a cooling water inlet pipe 51 and a cooling water outlet pipe 52 that penetrate into the air support box 1. The cooling water inlet pipe 51 and the cooling water outlet pipe 52 are connected to the cooling sleeve 53. The cooling water inlet pipe 51 and the cooling water outlet pipe 52 pass through the support beam 2 and are connected to the external water supply structure, thereby continuously cooling the cooling sleeve 53. A spiral cooling channel 54 is provided inside the cooling sleeve 53, through which the protective gas outlet assembly 3 passes. A temperature sensor is installed inside the air support box 1, opposite to the cooling sleeve 53. The sensor is stabilized and adjusted in response to feedback from the external cooling water supply structure, thereby ensuring the cooling effect of the cooling channel 54 on the protective gas outlet assembly 3.

[0033] Example 2

[0034] The structure and principle of this embodiment are similar to those of Embodiment 1. The difference is that in order to adjust the axial orientation of the support beam 2 relative to the tube body, a sliding guide mechanism 7 is provided at the end of the support beam 2 to restrict and provide the movement trajectory and moving torque. The support beam 2 has a built-in heat dissipation mechanism 8 to prevent overheating inside the support beam 2 and heat accumulation, thereby preventing heat transfer from other parts of the tube body from affecting the welding quality.

[0035] In addition, the sliding guide mechanism 7 includes a sliding seat 71 installed at the end of the support beam 2. The lower end of the sliding seat 71 is slidably connected to the sliding guide rail 72, and the sliding seat 71 is equipped with a lifting component. The support beam 2 is movably connected to the sliding seat 71, and an adaptation component is provided between them to adjust the circumferential orientation of the support beam 2 relative to the sliding seat 71 according to actual needs. The height of the support beam 2 is adjusted by the lifting component to ensure that the lower end of the support beam 2 remains isolated from the tube body.

[0036] Meanwhile, a moving motor 73 is installed inside the sliding seat 71 to provide moving torque. The moving motor 73 is connected to the moving roller 75 installed at the bottom of the sliding seat 71 through a gear set 74. The sliding guide rail 72 has a moving groove 76 for the moving roller 75 to fit and press against it. The rotation of the moving roller 75 drives the entire sliding seat 71 to slide axially along the moving groove 76. The lifting assembly includes a mounting frame opening 77 set on the sliding seat 71. A lifting frame 78 is slidably installed in the mounting frame opening 77. The support beam 2 passes through the lifting frame 78. The two sides of the sliding seat 71 are connected to the lifting frame 78 through lifting screws 79. When the lifting frame 78 moves up and down under the transmission action of the lifting screws 79, the support beam 2, which is inserted and fixed in the lifting frame 78, moves up and down accordingly to ensure that the air support box 1 fits against the tube. The adaptation component includes an electric push rod 781 set on the upper end of the lifting frame 78. The telescopic end of the electric push rod 781 is fixed with a locking plate 782 opposite to the support beam 2. The locking plate 782 applies a clamping torque to the support beam 2 to ensure that the support beam 2 always maintains a horizontal arrangement, and its central axis is parallel to or coincides with the central axis of the tube.

[0037] Example 3

[0038] As shown in Figures 3-4, similar to existing heat dissipation structures, the heat dissipation mechanism 8 in this application includes an air guide assembly disposed inside the support beam 2. The difference is that the air guide assembly has a guiding function, further increasing the internal airflow velocity and thus improving heat exchange efficiency. A heat dissipation fan 81 connected to the air guide assembly is installed at the end of the support beam 2. Heat-conducting components, opposite to the air guide assembly, are distributed on the inner wall of the support beam 2. Heat inside the pipe body is transferred to the air guide assembly through the heat-conducting components, wherein the air guide assembly and the heat-conducting components correspond one-to-one with each surface of the support beam 2.

[0039] Clearly, the air guiding assembly includes a pair of air inlet ducts 82 and air outlet ducts 83 arranged adjacent to the inner wall of the support beam 2. Inside the air inlet ducts 82 and 83, air guide plates 84 are arranged axially and staggered left and right. The air guide plates 84 are inclined relative to the extending direction of the air inlet ducts 82 and 83. Air guide blocks 85 are respectively arranged between the adjacent air guide plates 84, and a return flow channel 86 is left between the air guide blocks 85 and the air guide plates 84. The above air guiding structure utilizes the return flow channel 86 to form a valve structure, reducing the resistance at the center of the channel, thereby ensuring unidirectional high-speed airflow. The heat conduction assembly includes a heat conduction frame 87 disposed on the side wall of the support beam 2. The heat conduction frame 87 is closed by a heat conduction plate 88, and heat conduction ribs 89 are distributed on the outward-facing side of the heat conduction plate 88. The heat conduction assembly increases the heat exchange contact area between the air guiding assembly and the inside of the pipe body, ensuring its heat dissipation effect.

[0040] Preferably, the support beam 2 has a polygonal cross-section. In this application, a hexagonal cross-section structure is preferred for the support beam 2. The ends of the support beam 2 are sealed by a cover plate 21 to protect the gas supply and liquid supply pipelines. A protective cover 22 covering the gas support box 1 is installed on the support beam 2.

[0041] In summary, the principle of this embodiment is as follows: the support beam 2 extends into the inside of the pipe body, and the gas support box 1 installed at its upper end has a built-in protective gas outlet component 3 to fill the weld joint of the pipe body with protective gas. During the gas supply process, the cooling component 5 reduces the temperature of the protective gas to ensure that the pipe body will not be affected by high temperature in terms of weld quality.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0043] Although this paper extensively uses components such as air support box 1, support beam 2, cover plate 21, protective cover 22, protective air outlet assembly 3, outlet pipe 31, air injection pipe 32, air distribution pipe 33, adapter 34, adjustment assembly 4, adjustment shaft 41, adjustment gear 42, adjustment rack 43, drive motor 44, universal joint 45, limit plate 46, limit groove 47, cooling assembly 5, cooling water inlet pipe 51, cooling water outlet pipe 52, cooling sleeve 53, cooling channel 54, air collection assembly 6, air collection plate 61, and air collection frame The terms used include 62, 7, 7, 71, 72, 73, 74, 75, 76, 77, 78, 79, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 81 ...9, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 81, 88, 89, 80, 81, 89, 80, 81, 89, 80, 81, 89, 80, 81, 89, 80, 81, 89, 80, 81, 89, 80, 81, 89, 80, 81, 89, 80, 80, 81, 89, 80, 80, 81, 80, 81, 80, 81, 82, 80, 81, 80, 81, 82, 80, 81, 80, 81, 82, 80, 81, 82, 80,

Claims

1. A gantry welding mobile gas support device, comprising a gas support box (1), wherein the gas support box (1) is mounted on a support beam (2), characterized in that, The air support box (1) has a built-in protective gas outlet component (3) and an adjustment component (4) for adjusting the position of the protective gas outlet component (3). The air support box (1) has a built-in cooling component (5) opposite to the protective gas outlet component (3). The air support box (1) is equipped with an air collecting component (6) opposite to the protective gas outlet component (3). The protective gas outlet component (3) includes an outlet pipe (31) installed in the air support box (1). The outlet pipe (31) is equipped with an air distribution component. The outlet pipe (31) is connected to an air injection pipe (32). The air injection pipe (32) extends to the outside of the air support box (1) and passes through the support beam (2). The gas distribution assembly includes a gas distribution pipe (33) attached to the inner wall of the gas support box (1), and the gas distribution pipe (33) is connected to an adapter (34); the gas collection assembly (6) includes symmetrically arranged gas collection plates (61), and gas collection frame openings (62) are arranged in a matrix between the gas collection plates (61), and the gas collection frame openings (62) correspond one-to-one with the adapter (34); a sliding guide mechanism (7) is provided at the end of the support beam (2), and the support beam (2) has a built-in heat dissipation mechanism (8); the sliding guide mechanism (7) includes a sliding seat (71) installed at the end of the support beam (2), and the lower end of the sliding seat (71) is connected to the sliding guide mechanism (8). The sliding guide rail (72) is slidably connected to the sliding seat (71), which is equipped with a lifting assembly. An adaptation assembly is provided between the support beam (2) and the sliding seat (71). A moving motor (73) is installed inside the sliding seat (71). The moving motor (73) is connected to the moving roller (75) installed at the bottom of the sliding seat (71) via a gear set (74). The sliding guide rail (72) has a moving groove (76) for the moving roller (75) to fit and press against it. The lifting assembly includes a mounting frame opening (77) provided on the sliding seat (71). A lifting frame body (78) is slidably installed up and down inside the mounting frame opening (77). The support beam (2) passes through the lifting frame (78), and the sliding seat (71) is connected to the lifting frame (78) on both sides by lifting screws (79); the adaptation component includes an electric push rod (781) set at the upper end of the lifting frame (78), and the telescopic end of the electric push rod (781) is fixed with a locking pressure plate (782) opposite to the support beam (2); the heat dissipation mechanism (8) includes an air guide component set inside the support beam (2), and a heat dissipation fan (81) connected to the air guide component is installed at the end of the support beam (2), and heat conduction components opposite to the air guide component are distributed on the inner wall of the support beam (2);The air guiding assembly includes a pair of air inlet ducts (82) and air outlet ducts (83). Air inlet ducts (82) and air outlet ducts (83) are respectively provided with air guide plates (84) arranged axially and staggered left and right. The air guide plates (84) are inclined relative to the extending direction of the air inlet ducts (82) and air outlet ducts (83). Air guide blocks (85) are respectively provided between adjacent air guide plates (84) arranged axially. A return flow channel (86) is left between the air guide blocks (85) and the air guide plates (84). The heat conduction assembly includes a heat conduction frame opening (87) provided on the side wall of the support beam (2). The heat conduction frame opening (87) is closed by a heat conduction plate (88). Heat conduction ribs (89) are distributed on the outward-facing side of the heat conduction plate (88).

2. The gantry welding mobile gas support device according to claim 1, characterized in that, The adjustment assembly (4) includes an adjustment shaft (41) rotatably mounted on the support beam (2), the air support box (1) is slidably connected to the support beam (2), the two ends of the adjustment shaft (41) are respectively provided with adjustment gears (42), the air support box (1) has an adjustment rack (43) that meshes with the adjustment gears (42) for transmission, and the adjustment shaft (41) is connected to a drive assembly; the drive assembly includes a drive motor (44) mounted on the support beam (2), the drive motor (44) is connected to the adjustment shaft (41) through a universal joint (45); the air support box (1) is provided with downwardly extending limiting plates (46) on both sides, the limiting plates (46) have limiting grooves (47) for the adjustment shaft (41) to pass through, and the lower end of the limiting plates (46) is slidably connected to the support beam (2).

3. The gantry welding mobile gas support device according to claim 1, characterized in that, The cooling assembly (5) includes a cooling water inlet pipe (51) and a cooling water outlet pipe (52) that pass through the air support box (1). The cooling water inlet pipe (51) and the cooling water outlet pipe (52) are connected to the cooling sleeve (53). The cooling water inlet pipe (51) and the cooling water outlet pipe (52) pass through the support beam (2). The cooling sleeve (53) is provided with a spiral cooling channel (54). The protective gas outlet assembly (3) passes through the cooling channel (54). The air support box (1) is provided with a temperature sensor that is opposite to the cooling sleeve (53).

4. A gantry welding moving gas support device according to claim 1, characterized in that, The support beam (2) has a polygonal cross section, and the ends of the support beam (2) are closed by a cover plate (21). A protective cover (22) covering the air support box (1) is installed on the support beam (2).

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