Fire damper welding equipment and method

Abstract

The present invention discloses a fire damper welding device and method thereof, belonging to the field of welding processing technology, including a workbench and a placement table, a rotating arm is installed on the workbench, a welding gun assembly is installed on the end of the rotating arm, a rotating adjustment mechanism is installed under the placement table, and the rotating adjustment mechanism is connected to the workbench through. In the present invention, by adopting a gas storage frame, a connecting plate, a placement table, a gear ring, a connecting gear, an extrusion wheel, a suction support frame, an air inlet valve, an air outlet valve, a second contact seat and a wiping pad structure, by thoroughly cleaning the oil, dust and other pollutants on the surface of the fire damper, the generation of defects such as pores and slag inclusions during welding is effectively avoided, and the quality and reliability of the welding joint are significantly improved. The present invention not only realizes efficient cleaning of the surface of the fire damper, but also solves the problem of secondary pollution of debris through integrated design, providing a reliable guarantee for improving welding quality.

Description

Technical Field

[0001] The invention belongs to the technical field of welding processing, and in particular relates to fire damper welding equipment and a method thereof. Background Art

[0002] As an important fire-fighting equipment, fire dampers are widely used in building ventilation systems. Their structures are usually assembled by welding multiple parts. The welding quality is directly related to the sealing, strength and service life of fire dampers. In order to ensure the quality of the welding process, the surface of the fire damper usually needs to be cleaned before welding to remove pollutants such as oil, dust, rust, etc., to avoid these impurities from causing defects such as pores and slag inclusions during the welding process, which will affect the performance of the welded joint.

[0003] At present, the common cleaning method mainly relies on manual or mechanical wiping, such as using a rag, brush or high-pressure air nozzle to clean the surface of the fire damper. However, this traditional cleaning method has the following significant problems:

[0004] Limited cleaning effect: During the wiping process, the debris that falls off easily floats in the air and falls back onto the surface of the fire damper, or even enters corners or gaps, resulting in incomplete cleaning;

[0005] Secondary pollution risk: scattered debris may pollute the working environment and even cause harm to the health of operators;

[0006] Low efficiency: Manual wiping or simple mechanical cleaning can hardly meet the needs of large-scale production, and the cleaning effect has little effect on improving welding quality.

[0007] Based on this, the present invention designs a fire damper welding device and method thereof to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to propose a fire damper welding device and method in order to solve the problems in the above-mentioned background technology.

[0009] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a fire damper welding device, comprising a workbench and a placing table, a rotating arm is installed on the workbench, a welding gun assembly is installed on the end of the rotating arm, a rotating adjustment mechanism is installed under the placing table, the rotating adjustment mechanism is connected through the workbench, a rotating drive mechanism is fixedly installed on the outer arc surface of the placing table, the rotating drive mechanism is rotatably connected to the workbench, a movable suction mechanism is fixedly connected to the workbench, the other end of the movable suction mechanism is connected to a suction support frame, the movable suction mechanism is slidably connected to the outside of the rotating drive mechanism, a movable cleaning mechanism is slidably connected to the outside of the rotating drive mechanism, the movable cleaning mechanism is fixedly connected to the suction support frame and the outside of the workbench, a placement groove for placing the fire damper is provided on the placing table, and an air outlet is provided on the placing table.

[0010] As a further description of the above technical solution:

[0011] Two supporting seats for placing objects are fixedly connected to the workbench, and the supporting seats are slidably connected to the outer arc surface of the placement table. The position of the welding gun assembly corresponds to the position of the placement table. The side of the suction support frame is fixedly connected to an extension bracket arranged on the workbench. The position of the suction support frame corresponds to the position of the placement table and the placement groove. The placement table is hollow, and the rotating adjustment mechanism is connected to the air outlet through the placement table.

[0012] As a further description of the above technical solution:

[0013] The rotation adjustment mechanism includes a driven disk and a driving assembly fixedly connected to the workbench, the output shaft of the driving assembly is fixedly connected to the active disk, four limiting grooves and an extrusion groove are opened on the outside of the driven disk, the active disk is rotatably connected in the limiting groove, a cross bar is fixedly connected under the active disk, an adjustment column is fixedly connected on the cross bar, and the adjustment column can be rotatably entered into the extrusion groove.

[0014] As a further description of the above technical solution:

[0015] The driven disk is connected with a rotating tube, the top of which is fixedly connected to the placing table, the rotating tube is communicated with the placing table, the bottom of which is communicated with a rotating joint, the rotating tube is provided with a bearing on its outer sleeve, and the bearing is connected to the workbench.

[0016] As a further description of the above technical solution:

[0017] The rotary drive mechanism includes a gear ring fixedly connected to the outside of the placement table, a connecting gear meshed outside the gear ring, a rotating shaft fixedly connected under the connecting gear, the rotating shaft is rotatably connected to the workbench, an extrusion wheel fixedly connected outside the rotating shaft, and the extrusion wheel is slidably connected to the outside of the movable suction mechanism and the movable cleaning mechanism.

[0018] As a further description of the above technical solution:

[0019] The movable suction mechanism includes an air storage frame fixedly connected to the workbench, a connecting plate slidably connected inside the air storage frame, a movable rod fixedly connected outside the connecting plate, one end of the movable rod located outside the air storage frame is fixedly connected to a first contact seat, the first contact seat is slidably connected outside the extrusion wheel, and a first elastic component is fixedly connected outside the connecting plate.

[0020] As a further description of the above technical solution:

[0021] The other end of the first elastic component is fixedly connected to the inner wall of the air storage frame, the air storage frame is connected to the outside with an intermediate tube, the other end of the intermediate tube is connected to the suction support frame, an air inlet valve is provided outside the intermediate tube, and the side of the air storage frame is connected with an air outlet valve, and the air inlet valve and the air outlet valve are both connected to the air storage cavity in the air storage frame away from the first contact seat.

[0022] As a further description of the above technical solution:

[0023] The movable cleaning mechanism includes two wiping pads slidably connected under the suction support frame, the ends of the two wiping pads are fixedly connected to an intermediate seat, a sliding bar is fixedly connected to the intermediate seat, a support sleeve is slidably connected to the outside of the sliding bar, the support sleeve is fixedly connected to the suction support frame, a sliding rod is fixedly connected to the outside of the intermediate seat, and the other end of the sliding rod is fixedly connected to the second contact seat.

[0024] As a further description of the above technical solution:

[0025] The second contact seat is slidably connected to the outside of the extrusion wheel, the sliding rod is slidably connected to the outside of the guide sleeve, the side of the guide sleeve is fixedly connected to a fixed rod, the fixed rod is fixedly connected to the workbench, and the sliding rod outer sleeve is provided with a second elastic component, and the two ends of the second elastic component are respectively fixedly connected to the guide sleeve and the middle seat.

[0026] A fire damper welding method, the welding method comprising the following steps:

[0027] Directly place the fire damper to be welded into the corresponding placement groove through the bearing seat, and at the same time, connect the hot air to the bottom of the rotary joint, and the hot air is blown upward through the rotary joint, the rotating tube, the placement table and the air outlet, acting on the fire damper to be welded. At the same time, the driving assembly is controlled to drive the active disk, the crossbar and the adjusting column to rotate, and the adjusting column rotates into the extrusion groove, driving the driven disk, the rotating tube and the placement table to rotate. During the rotation of the placement table, the fire damper to be welded is controlled to rotate in the direction close to the suction support frame. During the rotation of the placement table, the connecting gear is controlled to rotate through the gear ring, and the extrusion wheel is controlled to rotate during the rotation of the connecting gear.

[0028] During the rotation of the extrusion wheel, its raised position will intermittently squeeze the first contact seat and the second contact seat to move. After the second contact seat is away from the raised position of the extrusion wheel, the second elastic component drives the slide bar and the wiping pad to move forward. When the raised position of the extrusion wheel is close to the second contact seat, the wiping pad is controlled to move backward. The wiping pad that reciprocates back and forth wipes and cleans the rotating fire damper. When the first contact seat is squeezed by the rotation process of the extrusion wheel, the connecting plate moves forward to squeeze the gas in the gas storage frame to be discharged through the gas outlet valve. When the connecting plate is controlled by the first elastic component to move backward;

[0029] The gas is sucked through the air inlet valve, the middle pipe and the suction support frame. The gas around the fire damper contains debris after being wiped by the wiping pad. The gas containing debris is directly sucked and discharged upward to prevent the debris from being wiped and falling on the corners and gaps of the fire damper. In conjunction with the hot air discharged upward from the lower side, the overall airflow is in an upward state, which has a better cleaning effect on the fire damper. The fire damper that has been preheated by hot air is welded by the welding gun assembly and continuously rotated to adjust its position. The fire damper after welding is insulated by hot air, and its cooling rate is slower, which can even out the temperature distribution and reduce stress concentration, thereby reducing the temperature gradient and reducing the deformation caused by thermal expansion and contraction. It can promote the uniformity of the organization of the weld and the heat affected zone and improve the mechanical properties of the material.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] 1. In the present invention, by adopting structures such as a gas storage frame, a connecting plate, a placing table, a gear ring, a connecting gear, an extrusion wheel, a suction support frame, an air inlet valve, an air outlet valve, a second contact seat and a wiping pad, efficient and thorough cleaning of the surface of the fire damper is achieved. During the rotation of the extrusion wheel, the protruding portion of the extrusion wheel intermittently squeezes the first contact seat and the second contact seat, driving the wiping pad to move back and forth, and performing all-round dynamic cleaning on the rotating fire damper surface to ensure coverage without dead angles; at the same time, the connecting plate moves back and forth under the action of the extrusion wheel, and through the cooperation of the gas storage frame and the suction support frame, the impurity-containing gas generated during the wiping process is directly sucked and discharged, thereby preventing the impurities from falling back onto the surface of the fire damper or entering the corner gaps. Through the synergistic effect of the extrusion wheel and the elastic component, the movement speed and strength of the wiping pad can be precisely controlled to avoid damage to the surface of the fire damper. The gas containing debris is centrally processed to avoid the pollution of the working environment by the dispersion of debris, thereby protecting the health of the operators. The device has a high degree of automation and can greatly improve the cleaning efficiency to meet the needs of large-scale production. By thoroughly cleaning the oil, dust and other pollutants on the surface of the fire damper, the generation of defects such as pores and slag inclusions during welding is effectively avoided, and the quality and reliability of the welded joints are significantly improved. The present invention not only realizes efficient cleaning of the surface of the fire damper, but also solves the problem of secondary pollution of debris through integrated design, providing a reliable guarantee for improving welding quality.

[0032] 2. In the present invention, the driving assembly drives the active disk, the cross bar and the adjusting column to rotate in coordination, and the adjusting column rotates precisely into the extrusion groove, thereby driving the driven disk, the rotating tube and the placement table to rotate synchronously. During the rotation of the placement table, the fire damper to be welded is precisely controlled to rotate toward the suction support frame. At the same time, through the cooperation of the gear ring and the connecting gear, the intermittent rotation of the placement table is realized, so as to flexibly adjust the position of the fire damper to be welded in the placement groove. This design not only ensures the smoothness and accuracy of the fire damper position adjustment and the placement process, but also fundamentally guarantees the efficiency and accuracy of the entire welding process, and significantly improves the quality and efficiency of fire damper welding.

[0033] 3. In the present invention, hot air is connected through the bottom of the rotary joint, and the hot air is blown upward through the rotary joint, the rotary tube, the placement table and the air outlet, forming an overall upward airflow with the hot air discharged upward from the lower side, effectively cleaning the fire damper to be welded. The fire damper preheated by the hot air can be continuously rotated to adjust its position after welding with the welding gun assembly to ensure the uniformity of welding. The fire damper after welding is subjected to the heat preservation effect of the hot air, and its cooling speed is relatively slow, which is conducive to uniform temperature distribution, reducing stress concentration and temperature gradient, thereby reducing the risk of deformation caused by thermal expansion and contraction. In addition, this design also helps to promote the uniformity of the structure of the weld and the heat-affected zone, further improve the mechanical properties of the material, and provide a strong guarantee for the welding quality of the fire damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the three-dimensional structure of a fire damper welding device and method thereof proposed by the present invention;

[0035] Figure 2 A schematic diagram of the three-dimensional structure of a placement platform for a fire damper welding device and method thereof proposed by the present invention;

[0036] Figure 3 A schematic diagram of the upward three-dimensional structure of a placement platform of a fire damper welding device and method thereof proposed by the present invention;

[0037] Figure 4 A schematic diagram of the structure of a rotating drive mechanism of a fire damper welding device and method thereof proposed by the present invention;

[0038] Figure 5 A schematic diagram of the three-dimensional structure of a movable suction mechanism of a fire damper welding device and method thereof proposed by the present invention;

[0039] Figure 6 A schematic diagram of the three-dimensional structure of a rotating adjustment mechanism of a fire damper welding device and method thereof proposed by the present invention;

[0040] Figure 7 A schematic diagram of a three-dimensional cross-sectional structure of an active suction mechanism of a fire damper welding device and method thereof proposed by the present invention;

[0041] Figure 8 The present invention provides a schematic diagram of the three-dimensional structure of a movable cleaning mechanism of a fire damper welding device and method thereof.

[0042] Legend:

[0043] 1. Workbench; 2. Rotating arm; 3. Welding gun assembly; 4. Placement table; 5. Rotation adjustment mechanism; 501. Driving assembly; 502. Active disk; 503. Crossbar; 504. Adjustment column; 505. Driven disk; 506. Rotating tube; 507. Extrusion groove; 508. Limiting groove; 509. Bearing; 510. Rotating joint; 6. Bearing seat; 7. Rotation driving mechanism; 71. Gear ring; 72. Connecting gear; 73. Rotating shaft; 74. Extrusion wheel; 8. Active suction mechanism; 81. Gas storage Frame; 82, connecting plate; 83, movable rod; 84, first contact seat; 85, first elastic component; 86, intermediate tube; 87, air inlet valve; 88, air outlet valve; 9, suction support frame; 10, extension bracket; 11, movable cleaning mechanism; 111, wiping pad; 112, intermediate seat; 113, sliding bar; 114, supporting sleeve; 115, sliding rod; 116, second contact seat; 117, guide sleeve; 118, fixing rod; 119, second elastic component; 12, placement groove; 13, air outlet. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Please refer to the attached Figure 1 -Attached Figure 8 The present invention provides a technical solution: a fire damper welding device, comprising a workbench 1 and a placing table 4, a rotating arm 2 is installed on the workbench 1, a welding gun assembly 3 is installed at the end of the rotating arm 2, a rotating adjustment mechanism 5 is installed under the placing table 4, the rotating adjustment mechanism 5 is connected through the workbench 1, a rotating driving mechanism 7 is fixedly installed on the outer arc surface of the placing table 4, the rotating driving mechanism 7 is rotatably connected to the workbench 1, a movable suction mechanism 8 is fixedly connected to the workbench 1, the other end of the movable suction mechanism 8 is connected to a suction support frame 9, the movable suction mechanism 8 is slidably connected to the outside of the rotating driving mechanism 7, the outside of the rotating driving mechanism 7 is slidably connected to a movable cleaning mechanism 11, the movable cleaning mechanism 11 is fixedly connected to the outside of the suction support frame 9 and the workbench 1, a placing groove 12 for placing the fire damper is provided on the placing table 4, and an air outlet 13 is provided on the placing table 4.

[0046] The rotating arm 2 can flexibly control the welding gun assembly 3, and the welding gun assembly 3 can flexibly perform welding processing on the fire damper at multiple positions.

[0047] Specifically, Figure 1-2 As shown, two supporting seats 6 for placing objects are fixedly connected to the workbench 1, and the supporting seats 6 are slidably connected to the outer arc surface of the placement table 4. The position of the welding gun assembly 3 corresponds to the position of the placement table 4. The side of the suction support frame 9 is fixedly connected with an extension bracket 10 arranged on the workbench 1. The position of the suction support frame 9 corresponds to the position of the placement table 4 and the placement groove 12. The placement table 4 is hollow, and the rotating adjustment mechanism 5 is connected to the air outlet 13 through the placement table 4.

[0048] The placement table 4, the air outlet 13, and the rotating tube 506 can blow the hot air at the bottom upward through the rotating tube 506, the placement table 4, and the air outlet 13. The hot air blown upward acts on the fire damper to preheat and keep the fire damper warm. The upward-flowing gas can smoothly blow the gas containing debris upward.

[0049] Specifically, Figure 3-4 and Figure 6As shown, the rotation adjustment mechanism 5 includes a driven disk 505 and a driving component 501 fixedly connected to the workbench 1, the output shaft of the driving component 501 is fixedly connected to the active disk 502, four limiting grooves 508 and an extrusion groove 507 are opened on the outside of the driven disk 505, the active disk 502 is rotatably connected in the limiting groove 508, a cross bar 503 is fixedly connected under the active disk 502, an adjusting column 504 is fixedly connected on the cross bar 503, and the adjusting column 504 can be rotatably entered into the extrusion groove 507.

[0050] A rotating tube 506 is connected through the driven disk 505, the top of the rotating tube 506 is fixedly connected to the placement table 4, the rotating tube 506 is communicated with the placement table 4, the bottom of the rotating tube 506 is connected to a rotating joint 510, and a bearing 509 is provided on the outer sleeve of the rotating tube 506, and the bearing 509 is connected through the workbench 1.

[0051] The driving assembly 501 drives the active disk 502, the cross bar 503 and the adjusting column 504 to rotate, and the adjusting column 504 rotates into the extrusion groove 507. After the adjusting column 504 enters the extrusion groove 507, it squeezes the driven disk 505, driving the driven disk 505, the rotating tube 506 and the placement table 4 to rotate, thereby controlling the intermittent rotation of the placement table 4. After the active disk 502 contacts the limiting groove 508, the driven disk 505 and the rotating tube 506 are limited to keep the placement table 4 stable. The rotating joint 510 allows the rotating tube 506 to maintain communication with the external hot air pipeline during the rotation process.

[0052] Specifically, Figure 3-4 As shown, the rotary drive mechanism 7 includes a gear ring 71 fixedly connected to the outside of the placement table 4, a connecting gear 72 is meshed outside the gear ring 71, a rotating shaft 73 is fixedly connected under the connecting gear 72, the rotating shaft 73 is rotatably connected to the workbench 1, an extrusion wheel 74 is fixedly connected outside the rotating shaft 73, and the extrusion wheel 74 is slidably connected to the outside of the movable suction mechanism 8 and the movable cleaning mechanism 11.

[0053] The gear ring 71 can control the connection gear 72 to rotate smoothly as the placement table 4 rotates, and can smoothly control the connection gear 72, the rotating shaft 73 and the extrusion wheel 74 to rotate.

[0054] Specifically, Figure 5 and Figure 7 As shown, the movable suction mechanism 8 includes an air storage frame 81 fixedly connected to the workbench 1, a connecting plate 82 is slidably connected inside the air storage frame 81, a movable rod 83 is fixedly connected outside the connecting plate 82, one end of the movable rod 83 located outside the air storage frame 81 is fixedly connected to a first contact seat 84, the first contact seat 84 is slidably connected to the outside of the extrusion wheel 74, and a first elastic component 85 is fixedly connected outside the connecting plate 82.

[0055] The other end of the first elastic component 85 is fixedly connected to the inner wall of the air storage frame 81. An intermediate tube 86 is connected to the outside of the air storage frame 81. The other end of the intermediate tube 86 is connected to the suction support frame 9. An air inlet valve 87 is provided outside the intermediate tube 86. An air outlet valve 88 is connected to the side of the air storage frame 81. Both the air inlet valve 87 and the air outlet valve 88 are connected to the air storage cavity in the air storage frame 81 away from the first contact seat 84.

[0056] When the first contact seat 84 is squeezed by the extrusion wheel 74 during rotation, the connecting plate 82 moves forward to squeeze the gas in the gas storage frame 81 and discharge it through the outlet valve 88. When the connecting plate 82 is controlled to move backward by the first elastic component 85, the gas is sucked through the air inlet valve 87, the middle pipe 86 and the suction support frame 9. The gas around the fire damper contains impurities after being wiped by the wiping pad 111, and the gas containing impurities is directly sucked upward and discharged.

[0057] Specifically, Figure 3-4 and Figure 8 As shown, the movable cleaning mechanism 11 includes two wiping pads 111 slidably connected under the suction support frame 9, the ends of the two wiping pads 111 are fixedly connected to an intermediate seat 112, a sliding bar 113 is fixedly connected to the intermediate seat 112, a support sleeve 114 is slidably connected outside the sliding bar 113, the support sleeve 114 is fixedly connected to the suction support frame 9, a sliding rod 115 is fixedly connected outside the intermediate seat 112, and the other end of the sliding rod 115 is fixedly connected to a second contact seat 116.

[0058] The second contact seat 116 is slidably connected to the outside of the extrusion wheel 74, the guide sleeve 117 is slidably connected to the outside of the slide rod 115, the side of the guide sleeve 117 is fixedly connected to the fixed rod 118, the fixed rod 118 is fixedly connected to the workbench 1, and the outer sleeve of the slide rod 115 is provided with a second elastic component 119, and the two ends of the second elastic component 119 are respectively fixedly connected to the guide sleeve 117 and the middle seat 112.

[0059] The support sleeve 114 limits and guides the sliding bar 113 so that the wiping pad 111 can stably move in a straight line. The guide sleeve 117 guides the sliding rod 115 and the second contact seat 116 so that the second contact seat 116 can stably contact with the extrusion wheel 74. After the second contact seat 116 moves away from the raised position of the extrusion wheel 74, the second elastic component 119 drives the sliding rod 115 and the wiping pad 111 to move forward. When the raised position of the extrusion wheel 74 is close to the second contact seat 116, the wiping pad 111 is controlled to move backward. The wiping pad 111 that moves back and forth wipes and cleans the rotating fire damper.

[0060] A fire damper welding method, the welding method comprising the following steps:

[0061] The fire damper to be welded is directly placed into the corresponding placement groove 12 through the bearing seat 6, and at the same time, the bottom of the rotating joint 510 is connected to hot air, and the hot air is blown upward through the rotating joint 510, the rotating tube 506, the placement table 4 and the air outlet 13, and acts on the fire damper to be welded. At the same time, the driving component 501 is controlled to drive the active disk 502, the cross bar 503 and the adjusting column 504 to rotate, and the adjusting column 504 rotates into the extrusion groove 507, driving the driven disk 505, the rotating tube 506 and the placement table 4 to rotate. During the rotation of the placement table 4, the fire damper to be welded is controlled to rotate in the direction close to the suction support frame 9. During the rotation of the placement table 4, the connecting gear 72 is controlled to rotate through the gear ring 71, and the extrusion wheel 74 is controlled to rotate during the rotation of the connecting gear 72;

[0062] During the rotation of the extrusion wheel 74, its raised position will intermittently squeeze the first contact seat 84 and the second contact seat 116 to move. After the second contact seat 116 is away from the raised position of the extrusion wheel 74, the second elastic component 119 drives the slide bar 115 and the wiping pad 111 to move forward. When the raised position of the extrusion wheel 74 is close to the second contact seat 116, the wiping pad 111 is controlled to move backward. The wiping pad 111 that reciprocates back and forth wipes and cleans the rotating fire damper. When the first contact seat 84 is squeezed by the rotation process of the extrusion wheel 74, the connecting plate 82 moves forward to squeeze the gas in the gas storage frame 81 to be discharged through the gas outlet valve 88. When the connecting plate 82 is controlled by the first elastic component 85 to move backward;

[0063] The gas is sucked through the air inlet valve 87, the middle tube 86 and the suction support frame 9. The gas around the fire damper contains impurities after being wiped by the wiping pad 111. The gas containing impurities is directly sucked and discharged upward to prevent the impurities from being wiped and falling on the corners and gaps of the fire damper. In conjunction with the hot air discharged upward from the lower side, the overall airflow is in an upward state, which has a better cleaning effect on the fire damper. After the fire damper is preheated by hot air and welded by the welding gun assembly 3, it is continuously rotated to adjust its position. The fire damper after welding is insulated by hot air, and its cooling rate is slower, which can even out the temperature distribution and reduce stress concentration, thereby reducing the temperature gradient and reducing the deformation caused by thermal expansion and contraction. It can promote the uniformity of the structure of the weld and the heat-affected zone and improve the mechanical properties of the material.

[0064] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fire damper welding device, comprising a workbench (1) and a placement table (4), characterized in that: The workbench (1) is provided with a rotating arm (2), the end of which is provided with a welding gun assembly (3), a rotating adjustment mechanism (5) is provided under the placement table (4), the rotating adjustment mechanism (5) is connected to the workbench (1), a rotating drive mechanism (7) is fixedly provided on the outer arc surface of the placement table (4), the rotating drive mechanism (7) is rotatably connected to the workbench (1), a movable suction mechanism (8) is fixedly connected to the workbench (1), the other end of the movable suction mechanism (8) is connected to a suction support frame (9), the movable suction mechanism (8) is slidably connected to the outside of the rotating drive mechanism (7), the outside of the rotating drive mechanism (7) is slidably connected to a movable cleaning mechanism (11), the movable cleaning mechanism (11) is fixedly connected to the outside of the suction support frame (9) and the workbench (1), a placement groove (12) for placing a fire damper is provided on the placement table (4), and an air outlet (13) is provided on the placement table (4); The rotary drive mechanism (7) comprises a gear ring (71) fixedly connected to the outside of the placement table (4); a connecting gear (72) is meshed on the outside of the gear ring (71); a rotating shaft (73) is fixedly connected below the connecting gear (72); the rotating shaft (73) is rotatably connected to the workbench (1); an extrusion wheel (74) is fixedly connected to the outside of the rotating shaft (73); and the extrusion wheel (74) is slidably connected to the outside of the movable suction mechanism (8) and the movable cleaning mechanism (11); The movable cleaning mechanism (11) comprises two wiping pads (111) slidably connected under the suction support frame (9); the ends of the two wiping pads (111) are fixedly connected to an intermediate seat (112); a sliding bar (113) is fixedly connected to the intermediate seat (112); a support sleeve (114) is slidably connected to the outside of the sliding bar (113); the support sleeve (114) is fixedly connected to the suction support frame (9); a sliding rod (115) is fixedly connected to the outside of the intermediate seat (112); and the other end of the sliding rod (115) is fixedly connected to a second contact seat (116).

2. A fire damper welding device according to claim 1, characterized in that: The workbench (1) is fixedly connected to two bearing seats (6) for placing articles, the bearing seats (6) are slidably connected to the outer arc surface of the placement table (4), the position of the welding gun assembly (3) corresponds to the position of the placement table (4), the side of the suction support frame (9) is fixedly connected to an extension bracket (10) arranged on the workbench (1), the position of the suction support frame (9) corresponds to the position of the placement table (4) and the placement groove (12), the placement table (4) is hollow, and the rotation adjustment mechanism (5) is connected to the air outlet (13) through the placement table (4).

3. The fire damper welding equipment according to claim 1, characterized in that: The rotation adjustment mechanism (5) comprises a driven disk (505) and a driving assembly (501) fixedly connected to the workbench (1); the output shaft of the driving assembly (501) is fixedly connected to the driving disk (502); four limiting grooves (508) and an extrusion groove (507) are provided on the outside of the driven disk (505); the driving disk (502) is rotatably connected in the limiting grooves (508); a cross bar (503) is fixedly connected below the driving disk (502); an adjustment column (504) is fixedly connected to the cross bar (503); and the adjustment column (504) can be rotatably entered into the extrusion groove (507).

4. The fire damper welding equipment according to claim 3, characterized in that: A rotating tube (506) is connected through the driven disk (505), the top end of the rotating tube (506) is fixedly connected to the placement table (4), the rotating tube (506) is communicated with the placement table (4), the bottom end of the rotating tube (506) is communicated with a rotating joint (510), the outer sleeve of the rotating tube (506) is provided with a bearing (509), and the bearing (509) is connected through the workbench (1).

5. The fire damper welding equipment according to claim 1, characterized in that: The movable suction mechanism (8) comprises an air storage frame (81) fixedly connected to the workbench (1), a connecting plate (82) slidably connected inside the air storage frame (81), a movable rod (83) fixedly connected outside the connecting plate (82), one end of the movable rod (83) located outside the air storage frame (81) fixedly connected to a first contact seat (84), the first contact seat (84) slidably connected to the outside of the extrusion wheel (74), and a first elastic component (85) fixedly connected outside the connecting plate (82).

6. The fire damper welding equipment according to claim 5, characterized in that: The other end of the first elastic component (85) is fixedly connected to the inner wall of the air storage frame (81); the air storage frame (81) is connected to an intermediate tube (86) outside; the other end of the intermediate tube (86) is connected to the suction support frame (9); an air inlet valve (87) is provided outside the intermediate tube (86); the side of the air storage frame (81) is connected to an air outlet valve (88); the air inlet valve (87) and the air outlet valve (88) are both connected to an air storage cavity in the air storage frame (81) away from the first contact seat (84).

7. The fire damper welding equipment according to claim 1, characterized in that: The second contact seat (116) is slidably connected to the outside of the extrusion wheel (74); the slide rod (115) is slidably connected to the outside of a guide sleeve (117); a side of the guide sleeve (117) is fixedly connected to a fixing rod (118); the fixing rod (118) is fixedly connected to the workbench (1); a second elastic component (119) is provided on the outer sleeve of the slide rod (115); and two ends of the second elastic component (119) are respectively fixedly connected to the guide sleeve (117) and the middle seat (112).

8. A fire damper welding method, according to a fire damper welding device according to any one of claims 1 to 7, characterized in that: The welding method comprises the following steps: The fire damper to be welded is directly placed into the corresponding placement groove (12) through the bearing seat (6), and hot air is connected to the bottom of the rotating joint (510). The hot air is blown upward through the rotating joint (510), the rotating tube (506), the placement table (4) and the air outlet (13), and acts on the fire damper to be welded. At the same time, the driving component (501) is controlled to drive the active disk (502), the cross bar (503) and the adjustment column (504) to rotate. The adjustment column (504) rotates into the extrusion groove (507), driving the driven disk (505), the rotating tube (506) and the placement table (4) to rotate. During the rotation of the placement table (4), the fire damper to be welded is controlled to rotate in a direction close to the suction support frame (9). During the rotation of the placement table (4), the connecting gear (72) is controlled to rotate through the gear ring (71). During the rotation of the connecting gear (72), the extrusion wheel (74) is controlled to rotate. During the rotation of the extrusion wheel (74), its raised position will intermittently squeeze the first contact seat (84) and the second contact seat (116) to move. After the second contact seat (116) moves away from the raised position of the extrusion wheel (74), the second elastic component (119) drives the slide bar (115) and the wiping pad (111) to move forward. When the raised position of the extrusion wheel (74) approaches the second contact seat (116), the wiping pad (111) is controlled to move backward. The wiping pad (111) that moves back and forth wipes and cleans the rotating fire damper. When the first contact seat (84) is squeezed by the rotation of the extrusion wheel (74), the connecting plate (82) moves forward to squeeze the gas in the gas storage frame (81) to be discharged through the gas outlet valve (88). When the connecting plate (82) is controlled by the first elastic component (85) to move backward; The gas is sucked through the air inlet valve (87), the middle tube (86) and the suction support frame (9). The gas around the fire damper contains impurities after being wiped by the wiping pad (111). The gas containing impurities is directly sucked and discharged upward to prevent the impurities from being wiped and falling on the corners and gaps of the fire damper. In combination with the hot air discharged upward from the lower side, the air flow is in an upward moving state as a whole, which has a better cleaning effect on the fire damper. After the fire damper is preheated by the hot air and welded by the welding gun assembly (3), it is continuously rotated to adjust its position. Since the fire damper after welding is insulated by the hot air, its cooling speed is slow, which can even out the temperature distribution, reduce stress concentration, reduce the temperature gradient, reduce deformation caused by thermal expansion and contraction, promote the uniformity of the structure of the weld and the heat-affected zone, and improve the mechanical properties of the material.

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