Steel structure welding equipment with automatic positioning function

Abstract

The invention relates to the field of welding, in particular to steel structure welding equipment with an automatic positioning function, which comprises a fixed ring I, an electric control guide rail, a cylinder, an electric push rod I, a sliding ring, a fixed ring II and the like, the first fixing ring is fixedly connected with an electric control guide rail. The electric control guide rail is rotationally connected with a cylinder through a sliding block. The cylinder is fixedly connected with a plurality of electric push rods I; telescopic parts of all the electric push rods are jointly and fixedly connected with a sliding ring; the sliding ring is rotationally connected with a second fixing ring. The two steel pipes in butt joint are fixed through the electric driving wheels on the first fixing ring and the second fixing ring, the first fixing ring, the cylinder and the second fixing ring are concentrically arranged, all the electric driving wheels jointly center and clamp the two steel pipes, and then the laser welding head is controlled to rotate for welding. During welding, deviation between the steel pipes can be effectively avoided, and the welding quality of butt joint of the steel pipes is improved.

Description

Technical Field

[0001] The invention relates to the field of welding, and in particular to steel structure welding equipment with automatic positioning function. Background Art

[0002] During long-term use, steel pipes will be damaged or corroded, and the damaged parts need to be replaced. The usual repair method is to cut off the damaged part and use a new steel pipe section to butt-weld the original steel pipe. During the butt welding process, the two sections of steel pipe are usually aligned manually, and the steel pipe is rotated manually or with auxiliary equipment during welding to ensure a uniform weld. However, this method can easily cause the steel pipe to shift during rotation, making the butt connection inaccurate, which in turn affects the welding quality. Secondly, for steel pipes used to transport liquids, in order to enhance the sealing and structural strength, their internal connections also need to be welded. Since these connection parts are located inside the steel pipe, they are difficult to reach manually, which increases the difficulty and complexity of welding. Summary of the invention

[0003] In order to overcome the shortcomings that manual alignment and rotation of steel pipes easily lead to butt offset, affect welding accuracy and quality, and make it difficult to weld internal connections, the present invention provides a steel structure welding device with automatic positioning function.

[0004] The technical solution is as follows: A steel structure welding equipment with automatic positioning function, including a fixed ring, an electric control guide rail, a cylinder, an electric push rod, a sliding ring, a fixed ring and a moving component; the fixed ring is fixedly connected to the electric control guide rail; the electric control guide rail is rotatably connected to the cylinder through a slider; the cylinder is fixedly connected to a plurality of electric push rods; all the telescopic parts of the electric push rods are commonly fixed to a sliding ring; the sliding ring is rotatably connected to the fixed ring, and the fixed ring, the cylinder and the fixed ring are concentrically arranged; the fixed ring and the fixed ring are each connected to a plurality of moving components for driving the entire equipment to move; it also includes a driving component, a mounting plate, a laser welding head and an interception net; the cylinder is provided with two through grooves; the through groove is connected to a driving component; the driving component is connected to the mounting plate, and the driving component is used to drive the mounting plate to move; the mounting plate is fixedly connected to a laser welding head, and a distance sensor is arranged on the mounting plate; the cylinder is provided with a plurality of through grooves; each through groove is detachably connected to an interception net.

[0005] Preferably, the moving component includes a mounting block, two electric push rods, a fixed frame and an electric drive wheel; the first fixed ring and the second fixed ring are each connected to the mounting block; the mounting block is fixedly connected to the second electric push rod; the telescopic part of the second electric push rod is fixedly connected to the fixed frame; the fixed frame is rotatably connected to the electric drive wheel, and the electric drive wheel is driven to rotate by a motor.

[0006] Preferably, it also includes an electric winding drum, a grinding belt, an electric slider and an electric winding roller; the cylinder is fixedly connected to the electric winding drum; the grinding belt is wound in the electric winding drum; the sliding groove on the inner wall of the cylinder is slidably connected to the electric slider; the electric slider is fixedly connected to the electric winding roller, and the electric winding roller is fixedly connected to the end of the grinding belt; the electric winding drum and the electric winding roller are both driven to rotate by a motor.

[0007] Preferably, it also includes an air duct, an air blow pipe 1 and an air blow pipe 2; the electric winding drum is fixedly connected with the air duct, and the air duct is connected with an external pump; the air duct is connected with a plurality of air blow pipes 1, and the air blow pipe 1 is arranged toward the center of the cylinder; the air duct is connected with a plurality of air blow pipes 2, and the air blow pipes 2 are arranged toward the grinding belt.

[0008] Preferably, it also includes a ventilation pipe and a circular tube; a plurality of ventilation pipes are fixedly connected to the cylinder, the plurality of ventilation pipes are respectively located at the front and rear sides of the mounting plate, and the ventilation pipes are connected to an external pump; the ventilation pipe is connected to a plurality of circular tubes for extracting welding smoke.

[0009] Preferably, a micro motor is also included; the fixing ring 1 and the fixing ring 2 are each fixedly connected with the same number of micro motors as the mounting blocks, and the output shafts of the micro motors are fixedly connected to the mounting blocks, and the mounting blocks are rotatably connected to the fixing ring 1 and the fixing ring 2 respectively.

[0010] Preferably, it also includes a grinding strip and a multi-stage electric push rod; the cylinder is provided with a plurality of grooves; a plurality of multi-stage electric push rods are fixedly connected to each groove; all the telescopic parts of the multi-stage electric push rods in the same groove are fixedly connected to a grinding strip.

[0011] Preferably, the circular tubes are arranged to be inclined toward the outside of the interception net.

[0012] Preferably, an annular airbag is also included; an annular airbag is fixedly connected to the surface of the fixing ring 1 and the fixing ring 2, and the annular airbag is connected to an external pump.

[0013] Preferably, a wear-resistant rubber ring is provided on the outer surface of the annular airbag.

[0014] Beneficial effects of the present invention: The two butted steel pipes are fixed by the electric drive wheels on the fixing ring 1 and the fixing ring 2, and the fixing ring 1, the cylinder and the fixing ring 2 are concentrically arranged. All the electric drive wheels clamp the two steel pipes together, and then the laser welding head is controlled to rotate for welding. Compared with the existing steel pipe rotation, the offset between the steel pipes can be effectively avoided during welding, thereby improving the welding quality of the butt joint of the steel pipes; and by controlling the electric push rod 1 to drive the fixing ring 2 to move toward the cylinder, the fixing ring 2 drives the butt jointed steel pipe to be in close contact with the original steel pipe, thereby improving the stability of the butt joint of the two steel pipes and ensuring the quality of subsequent welding at the butt joint.

[0015] The electric take-up drum and the electric take-up roller rotate simultaneously to tighten the pulled-out grinding belt so that it fits tightly to the surface of the steel pipe. Then the electric control guide rail is controlled to drive the cylinder to rotate. The surface of the butted steel pipe is polished by the tight grinding belt to remove the rust on the surface, thereby improving the subsequent welding effect and avoiding the presence of rust on the surface of the steel pipe, which affects the welding quality. The grinding belt pulled out by the electric take-up roller can also adapt to square steel pipes. The pulled-out grinding belt is tightened so that it can fit to the surface of the square steel pipe, and then the surface of the square steel pipe is polished.

[0016] By controlling the micro motor to drive the electric drive wheel to rotate, the equipment can enter the inside of the circular steel pipe for welding, thereby improving the convenience of welding at the internal butt joint of the circular steel pipe, and in the process of butt welding of the circular steel pipe, it can be used for welding at the internal butt joint and the external butt joint of the circular steel pipe, thereby improving the adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure disclosed by the steel structure welding equipment with automatic positioning function of the present invention; Figure 2 A schematic diagram of the structure of the movable assembly disclosed by the steel structure welding equipment with automatic positioning function of the present invention; Figure 3 A schematic diagram of the combined structure of a driving assembly, a mounting plate and a laser welding head disclosed in the steel structure welding equipment with automatic positioning function of the present invention; Figure 4 A schematic diagram of the combined structure of a cylinder, an electric push rod 1, a sliding ring, a fixed ring 2 and a mounting plate disclosed in the steel structure welding equipment with automatic positioning function of the present invention; Figure 5 It is a schematic diagram of the combined structure of the electric winding drum, the grinding belt, the electric slider, the electric winding roller, the air duct, the first blowing pipe and the second blowing pipe disclosed in the steel structure welding equipment with automatic positioning function of the present invention; Figure 6 It is a schematic diagram of a state in which the grinding belt of the steel structure welding equipment with automatic positioning function disclosed by the present invention is pulled out to wrap the steel pipe; Figure 7 A cross-sectional view of a cylinder disclosed by the steel structure welding equipment with automatic positioning function of the present invention; Figure 8 The present invention is a schematic diagram of the combined structure of a grinding bar and a multi-stage electric push rod disclosed in the steel structure welding equipment with automatic positioning function.

[0018] Explanation of the accompanying drawings: 1-fixed ring one, 2-electrically controlled guide rail, 3-cylinder, 4-electric push rod one, 5-sliding ring, 6-fixed ring two, 7-mounting plate, 8-laser welding head, 9-interception net, 101-mounting block, 102-electric push rod two, 103-fixed frame, 104-electric drive wheel, 701-AC motor, 702-connecting plate, 703-multi-stage electric telescopic rod, 111-electric winding drum, 112-grinding belt, 113-electric slider, 114-electric winding roller, 115-air duct, 116-blowing pipe one, 117-blowing pipe two, 121-ventilation pipe, 122-circular tube, 201-micro motor, 202-grinding strip, 203-multi-stage electric push rod, 211-annular airbag, 301-through groove one, 302-through groove two, 303-groove. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Example 1 A steel structure welding equipment with automatic positioning function, such as Figure 1-Figure 7 As shown, it includes a fixed ring 1, an electric control rail 2, a cylinder 3, an electric push rod 1 4, a sliding ring 5, a fixed ring 2 6 and a moving component; the fixed ring 1 is fixedly connected to the electric control rail 2; the electric control rail 2 is rotatably connected to the cylinder 3 through a slider; the cylinder 3 is fixedly connected to four electric push rods 1 4 distributed in a ring array; all the telescopic parts of the electric push rods 1 4 are commonly fixed to a sliding ring 5; the sliding ring 5 is rotatably connected to the fixed ring 2 6, and the fixed ring 1, the cylinder 3 and the fixed ring 2 6 are concentrically arranged; the fixed ring 1 and the fixed ring 2 6 are each connected to a number of moving components; It also includes a driving assembly, a mounting plate 7, a laser welding head 8 and an intercepting net 9; the cylinder 3 is provided with a through slot 2 302; the through slot 2 302 is connected to a driving assembly; the driving assembly is connected to the mounting plate 7, and the driving assembly is used to drive the mounting plate 7 to move; the mounting plate 7 is fixedly connected to the laser welding head 8, and a distance sensor is provided on the mounting plate 7; the cylinder 3 is provided with four through slots 1 301 distributed in a circular array; each through slot 1 301 is bolted to an intercepting net 9.

[0021] The moving assembly includes a mounting block 101, an electric push rod 102, a fixed frame 103 and an electric drive wheel 104; the fixing ring 1 1 and the fixing ring 2 6 are each connected to the mounting block 101; the mounting block 101 is fixedly connected to the electric push rod 102; the telescopic part of the electric push rod 102 is fixedly connected to the fixed frame 103; the fixed frame 103 is rotatably connected to the electric drive wheel 104, and the electric drive wheel 104 is driven to rotate by a motor.

[0022] It also includes an electric winding drum 111, a grinding belt 112, an electric slider 113 and an electric winding roller 114; the electric winding drum 111 is fixedly connected to the inner wall of the cylinder 3; the grinding belt 112 is wound inside the electric winding drum 111; the electric slider 113 is slidably connected to the slide groove on the inner wall of the cylinder 3; the electric slider 113 is fixedly connected to the electric winding roller 114, and the electric winding roller 114 is fixedly connected to the end of the grinding belt 112; the electric winding drum 111 and the electric winding roller 114 are both driven to rotate by a motor.

[0023] It also includes an air duct 115, an air blow pipe 1 16 and an air blow pipe 2 117; the electric winding drum 111 is fixedly connected with the air duct 115, and the air duct 115 is connected with an external pump; the air duct 115 is connected with a plurality of air blow pipes 1 16, and the air blow pipe 1 116 is arranged toward the center of the cylinder 3; the air duct 115 is connected with a plurality of air blow pipes 2 117, and the air blow pipe 2 117 is arranged toward the grinding belt 112.

[0024] It also includes a ventilation pipe 121 and a circular tube 122; the cylinder 3 is fixedly connected to two ventilation pipes 121, which are respectively located at the front and rear sides of the mounting plate 7, and the ventilation pipes 121 are connected to an external pump; the ventilation pipe 121 is connected to a plurality of circular tubes 122.

[0025] The driving assembly includes an AC motor 701, a connecting plate 702 and a multi-stage electric telescopic rod 703; two AC motors 701 are fixedly connected to the through slot 2 302 of the cylinder 3; each output shaft of the AC motor 701 is fixedly connected to a connecting plate 702; each connecting plate 702 is fixedly connected to two multi-stage electric telescopic rods 703, and the telescopic parts of all the multi-stage electric telescopic rods 703 are fixedly connected to the mounting plate 7.

[0026] In the butt welding process of existing steel pipes, the two butted steel pipes are rotated manually or using related equipment, which may easily cause deviation between the steel pipes, resulting in uneven butt joint of the steel pipes, affecting the subsequent welding quality; therefore, when butt welding the steel pipes, the device is first manually placed on the surface of the steel pipe, and then another steel pipe is manually butted with the original steel pipe, and then the electric push rod 2 102 on the fixing ring 1 and the fixing ring 2 6 is controlled to work at the same time, and the electric push rod 2 102 drives the fixing frame 103 and the electric drive wheel 104 to move, and stops moving when the electric drive wheel 104 contacts the surface of the steel pipe, and then controls the electric drive wheel 104 to rotate, driving the entire device to butt weld. The surfaces of the two connected steel pipes move, and when the electric drive wheel 104 drives the cylinder 3 to move to the joint of the two steel pipes, it stops moving, and then the electric push rod 2 102 on the fixed ring 1 is controlled to drive the electric drive wheel 104 to move, and the original steel pipe is clamped, and then the electric push rod 2 102 on the fixed ring 2 6 is controlled to drive the electric drive wheel 104 to move, and the other steel pipe that is connected is clamped. At this time, the laser welding head 8 is aligned with the joint of the steel pipe, and then the AC motor 701 is controlled to drive the connecting plate 702, the multi-stage electric telescopic rod 703, the mounting plate 7 and the laser welding head 8 to rotate 180 degrees, so that the laser welding head 8 is facing the surface of the steel pipe, and then the electric control The guide rail 2 drives the cylinder 3 and other connected parts to rotate along the sliding ring 5, and while rotating, controls the laser welding head 8 to weld the butt joint of the steel pipe. When the laser welding head 8 rotates one circle, the welding of the butt joint of the steel pipe is completed; the two butt jointed steel pipes are clamped and fixed by the electric drive wheels 104 on the fixed ring 1 and the fixed ring 2 6, and the fixed ring 1, the cylinder 3 and the fixed ring 2 6 are concentrically arranged, and all the electric drive wheels 104 clamp the two steel pipes together, and then control the laser welding head 8 to rotate for welding. Compared with the existing steel pipe rotation, the offset between the steel pipes can be effectively avoided during welding, which improves the steel pipe At the same time, before the laser welding head 8 welds, the electric push rod 1 4 is controlled to drive the fixed ring 2 6 to move toward the cylinder 3, and the fixed ring 2 6 drives the butt-jointed steel pipe to be in close contact with the original steel pipe, thereby improving the stability of the butt joint of the two steel pipes and ensuring the quality of subsequent welding at the butt joint, and further avoiding the offset of the steel pipe butt joint during welding, which affects the subsequent welding; and during welding, the distance sensor arranged on the mounting plate 7 is used for sensing, and the multi-stage electric telescopic rod 703 is controlled to drive the mounting plate 7 and the laser welding head 8 to move, so as to automatically locate the distance between the laser welding head 8 and the steel pipe, and ensure the overall welding effect.

[0027] In addition, it is taken into consideration that a large number of sparks will be generated during the welding process of the laser welding head 8, and the sparks will splash everywhere to the surrounding environment, which may easily cause safety hazards or damage surrounding objects; therefore, an interception net 9 is provided on the cylinder 3. During welding, the generated sparks are intercepted and collected by the interception net 9 to prevent the sparks from splashing everywhere and affecting the surrounding environment; and, during the welding process, the external pump is controlled to suction through the ventilation pipe 121 and the circular tube 122 to timely extract the welding smoke generated by welding to prevent the welding smoke generated by welding from spreading to the surrounding environment and affecting the surrounding environment.

[0028] Considering that the surface of the steel pipe will have rust after long-term use, during welding, the rust on the surface will affect the weld of the steel pipe joint, causing pores or slag inclusions to form at the weld, reducing the strength and toughness of the weld. Therefore, before the laser welding head 8 welds, the electric slider 113 is controlled to drive the electric winding roller 114 to rotate counterclockwise from right to left along the slide groove on the inner wall of the cylinder 3, and the electric winding roller 114 moves to pull out the grinding belt 112 wound in the electric winding drum 111, and make the grinding belt 112 wrap around the surface of the steel pipe fixed by the fixing ring 1 and the fixing ring 2 6, as shown in FIG. Figure 6 As shown, the electric winding drum 111 is then controlled to rotate the winding grinding belt 112, and the electric winding roller 114 is controlled to rotate the winding grinding belt 112 at the same time. The pulled grinding belt 112 is tightened by the electric winding drum 111 and the electric winding roller 114 rotating at the same time, so that the grinding belt 112 is closely attached to the surface of the steel pipe, and then the electric control guide rail 2 is controlled to drive the cylinder 3 to rotate, and the surface of the butted steel pipe is polished by the tight grinding belt 112 to remove the rust on the surface, thereby improving the subsequent welding effect and avoiding the rust on the surface of the steel pipe that affects the welding quality; after the grinding is completed, the electric winding roller 114 is controlled to move and reset, and the electric control guide rail 2 is controlled to drive the cylinder 3 to rotate. The movable reel 111 rewinds the pulled-out grinding belt 112, and, during the rewinding process, controls the external pump to pass gas into the air duct 115 and blow it out from the air blowing pipe 1 16 to blow and clean the surface of the grinded steel pipe. At the same time, when rewinding the grinding belt 112, air is blown to the grinding belt 112 through the air blowing pipe 2 117 to blow off the debris attached to the surface of the grinding belt 112, so as to avoid excessive debris attached to the surface of the grinding belt 112 and affect the subsequent grinding effect. Moreover, most of the debris cleaned up can be collected by the intercepting net 9 to prevent the debris from spreading everywhere and increasing the difficulty of subsequent cleaning. Subsequently, the intercepting net 9 only needs to be disassembled for cleaning.

[0029] And considering that the existing steel pipes include not only round steel pipes but also square steel pipes, the existing equipment is not suitable for grinding and welding square steel pipes, and additional equipment is often needed to grind and weld them; therefore, when grinding and welding square steel pipes, the grinding belt 112 pulled out by the electric winding roller 114 can also adapt to the square steel pipe, and the electric winding drum 111 and the electric winding roller 114 are controlled to rotate at the same time to tighten the pulled out grinding belt 112 so that the grinding belt 112 can also fit the surface of the square steel pipe, and then the surface of the square steel pipe is ground. In the subsequent welding, the electric push rod 102 drives the fixed frame 103 and the electric drive wheel 104 to move, so that when the square steel pipe is ground, the electric push rod 102 can be used to grind the square steel pipe. When performing butt welding, the electric drive wheel 104 can also contact its surface and fix the square steel pipe for docking. At the same time, the electric drive wheel 104 is driven to move by the electric push rod 102, so that the present invention can fix and dock steel pipes of various specifications and sizes, thereby improving the adaptability of the present invention. When the laser welding head 8 is welding, the distance sensor arranged on the mounting plate 7 is used for sensing, and the multi-stage electric telescopic rod 703 is controlled to drive the mounting plate 7 and the laser welding head 8 to move, and the position of the laser welding head 8 is automatically positioned, so that when the laser welding head 8 is welding square steel pipes or round steel pipes of different specifications and sizes, the laser welding head 8 can move adaptively to ensure the final welding effect.

[0030] Example 2 On the basis of Example 1, Figure 2 , Figure 7 and Figure 8 As shown, it also includes a micro motor 201; the fixing ring 1 and the fixing ring 2 6 are each fixedly connected with the same number of micro motors 201 as the mounting block 101, and the output shaft of the micro motor 201 is fixedly connected to the mounting block 101, and the mounting block 101 is rotatably connected to the fixing ring 1 and the fixing ring 2 6 respectively.

[0031] It also includes a grinding strip 202 and a multi-stage electric push rod 203; the cylinder 3 has two grooves 303; each groove 303 is fixedly connected to two multi-stage electric push rods 203; all the telescopic parts of the multi-stage electric push rods 203 in the same groove 303 are fixedly connected to a grinding strip 202.

[0032] The circular tubes 122 are all arranged to be inclined toward the outside of the interception net 9. Hot air is blown out through the circular tubes 122 to heat and dry the inner wall of the circular steel tube to facilitate subsequent grinding and welding.

[0033] It also includes an annular airbag 211; an annular airbag 211 is fixedly connected to the surface of each of the fixed ring 1 and the fixed ring 2 6, and the annular airbag 211 is connected to the external pump.

[0034] A wear-resistant rubber ring is provided on the outer surface of the annular airbag 211, which contacts the inner wall of the circular steel pipe through the rubber ring and cleans debris, thereby preventing the annular airbag 211 from directly contacting the inner wall of the circular steel pipe, causing friction damage to the annular airbag 211, thereby protecting the annular airbag 211.

[0035] On the basis of the above-mentioned embodiment 1, when some circular steel pipes for conveying liquids are butt-welded, in order to ensure the sealing effect of the butt joints, it is also necessary to weld the internal joints thereof, and the internal joints are located inside the circular steel pipe, which is not convenient for manual welding; therefore, the present invention is provided with different sizes, and when welding the butt joints inside the circular steel pipe, the corresponding size of the equipment is first selected manually, and then the micro motor 201 is controlled to drive the mounting block 101, the electric push rod 2 102, the fixed frame 103 and the electric drive wheel 104 to rotate 180 degrees, so that the electric drive wheel 104 on the fixed ring 1 and the fixed ring 2 6 rotates outward, and then the equipment is manually placed inside the circular steel pipe, and then the electric push rod 2 102 is controlled to drive the fixed frame 103 and the electric drive wheel 104 to move, so that the electric drive wheel 104 contacts the inner wall of the circular steel pipe, and then the electric drive wheel 104 is controlled to work , driving the entire equipment to move inside the circular steel pipe, and when the laser welding head 8 moves to the butt joint inside the circular steel pipe, it stops moving, and while moving, controls the AC motor 701 to drive the mounting plate 7 and the laser welding head 8 to rotate, so that the laser welding head 8 is aligned with the butt joint inside the circular steel pipe. At this time, the electric drive wheels 104 on the fixed ring 1 and the fixed ring 2 6 respectively fix the two butt jointed circular steel pipes, and then control the electric control guide rail 2 to drive the cylinder 3 to rotate, and the cylinder 3 drives the laser welding head 8 to rotate to weld the butt joint inside the circular steel pipe. By controlling the micro motor 201 to drive the electric drive wheel 104 to rotate, the equipment can enter the circular steel pipe for welding, thereby improving the convenience of welding at the butt joint inside the circular steel pipe, and in the process of butt welding of circular steel pipes, it can be used for welding at the internal butt joint and the external butt joint of the circular steel pipe, thereby improving the adaptability of the equipment.

[0036] Before welding at the butt joint inside the circular steel pipe, the multi-stage electric push rod 203 is first controlled to drive the grinding bar 202 to move out of the groove 303 and contact the inner wall of the circular steel pipe, and then the electric control guide rail 2 is controlled to drive the cylinder 3 to rotate, and the cylinder 3 drives the grinding bar 202 to grind the inner wall of the circular steel pipe, and grind away the rust and impurities on the inner wall to prevent the rust and impurities on the inner wall from affecting its subsequent welding; at the same time, considering that the debris under grinding will always fall into the inside of the circular steel pipe after being collected by the interception net 9, the residual debris will affect the subsequent welding, so that the formed weld will have more impurities, affecting the strength of the weld; therefore, after the grinding of the grinding bar 202 is completed, the external pump is controlled to fill the annular airbag 211 with gas, so that the annular airbag 211 expands and contacts the inner wall of the circular steel pipe, and then the electric drive wheel 104 is controlled to drive the annular airbag 211 to move toward the outlet of the circular steel pipe, and the debris falling on the inner wall of the circular steel pipe is scraped out by the annular airbag 211. Then, the external pump is controlled to extract the gas in the annular airbag 211 to restore it, and then the electric drive wheel 104 is controlled to drive the equipment to move back to the docking point inside the circular steel pipe for subsequent welding work; and a wear-resistant rubber ring is provided on the outer surface of the annular airbag 211, which contacts the inner wall of the circular steel pipe through the rubber ring and cleans debris to prevent the annular airbag 211 from directly contacting the inner wall of the circular steel pipe, causing the annular airbag 211 to be damaged by friction, thereby protecting the annular airbag 211; at the same time, the inner wall of the circular steel pipe used for conveying liquid is damp, and when welding is performed directly, it is easy to cause pores in the weld, affecting the quality of the weld, therefore, by setting the circular pipe 122 to be inclined toward the outside of the interception net 9, before grinding and welding, the external pump is controlled to pass hot air into the ventilation pipe 121, and hot air is blown out to the inner wall of the circular steel pipe through the circular pipe 122, and the inner wall of the circular steel pipe is heated and dried, so as to facilitate subsequent welding and avoid the inner wall of the circular steel pipe from being damp, which affects the subsequent welding effect.

[0037] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A steel structure welding device with an automatic positioning function, comprising a fixed ring (1), an electric control rail (2), a cylinder (3), an electric push rod (4), a sliding ring (5), a fixed ring (6) and a moving assembly; the fixed ring (1) is fixedly connected to the electric control rail (2); the electric control rail (2) is rotatably connected to the cylinder (3) through a slider; the cylinder (3) is fixedly connected to a plurality of electric push rods (4); the telescopic parts of all the electric push rods (4) are commonly fixedly connected to a sliding ring (5); the sliding ring (5) is rotatably connected to the fixed ring (6), and the fixed ring (1), the cylinder (3) and the fixed ring (6) are concentrically arranged; the fixed ring (1) and the fixed ring (6) are each connected to a plurality of moving assemblies for driving the entire device to move; the characteristics are as follows: The device also comprises a driving assembly, a mounting plate (7), a laser welding head (8) and an interception net (9); the cylinder (3) is provided with a second through slot (302); the second through slot (302) is connected to a driving assembly; the driving assembly is connected to the mounting plate (7), and the driving assembly is used to drive the mounting plate (7) to move; the mounting plate (7) is fixedly connected to the laser welding head (8), and a distance sensor is provided on the mounting plate (7); the cylinder (3) is provided with a plurality of first through slots (301); and each first through slot (301) is detachably connected to an interception net (9).

2. The steel structure welding equipment with automatic positioning function according to claim 1 is characterized in that: The moving assembly comprises a mounting block (101), a second electric push rod (102), a fixing frame (103) and an electric drive wheel (104); the first fixing ring (1) and the second fixing ring (6) are each connected to the mounting block (101); the mounting block (101) is fixedly connected to the second electric push rod (102); the telescopic portion of the second electric push rod (102) is fixedly connected to the fixing frame (103); the fixing frame (103) is rotatably connected to the electric drive wheel (104), and the electric drive wheel (104) is driven to rotate by a motor.

3. The steel structure welding equipment with automatic positioning function according to claim 1 is characterized in that: It also includes an electric winding drum (111), a grinding belt (112), an electric slider (113) and an electric winding roller (114); the cylinder (3) is fixedly connected to the electric winding drum (111); the grinding belt (112) is wound inside the electric winding drum (111); the electric slider (113) is slidably connected to the sliding groove on the inner wall of the cylinder (3); the electric slider (113) is fixedly connected to the electric winding roller (114), and the electric winding roller (114) is fixedly connected to the end of the grinding belt (112); the electric winding drum (111) and the electric winding roller (114) are both driven to rotate by a motor.

4. The steel structure welding equipment with automatic positioning function according to claim 3 is characterized in that: The invention also comprises an air duct (115), a first air blowing pipe (116) and a second air blowing pipe (117); the electric winding drum (111) is fixedly connected with the air duct (115), and the air duct (115) is connected with an external pump; the air duct (115) is connected with a plurality of first air blowing pipes (116), and the first air blowing pipes (116) are arranged toward the center of the cylinder (3); the air duct (115) is connected with a plurality of second air blowing pipes (117), and the second air blowing pipes (117) are arranged toward the grinding belt (112).

5. The steel structure welding equipment with automatic positioning function according to claim 1 is characterized in that: It also includes a ventilation pipe (121) and a circular tube (122); the cylinder (3) is fixedly connected with a plurality of ventilation pipes (121), the plurality of ventilation pipes (121) are respectively located at the front side and the rear side of the mounting plate (7), and the ventilation pipes (121) are connected to an external pump; the ventilation pipe (121) is connected to a plurality of circular tubes (122) for extracting welding smoke.

6. The steel structure welding equipment with automatic positioning function according to claim 2 is characterized in that: It also includes a micro motor (201); the fixing ring 1 (1) and the fixing ring 2 (6) are each fixedly connected with the same number of micro motors (201) as the mounting block (101); the output shaft of the micro motor (201) is fixedly connected to the mounting block (101); and the mounting block (101) is rotatably connected to the fixing ring 1 (1) and the fixing ring 2 (6), respectively.

7. The steel structure welding equipment with automatic positioning function according to claim 1 is characterized in that: It also includes a grinding strip (202) and a multi-stage electric push rod (203); the cylinder (3) is provided with a plurality of grooves (303); each groove (303) is fixedly connected to a plurality of multi-stage electric push rods (203); and the telescopic parts of all the multi-stage electric push rods (203) in the same groove (303) are fixedly connected to a grinding strip (202).

8. The steel structure welding equipment with automatic positioning function according to claim 7 is characterized in that: The circular tubes (122) are all arranged to be inclined toward the outside of the interception net (9).

9. The steel structure welding equipment with automatic positioning function according to any one of claims 7-8, characterized in that: It also includes an annular airbag (211); an annular airbag (211) is fixedly connected to the surface of the first fixing ring (1) and the second fixing ring (6), and the annular airbag (211) is connected to an external pump.

10. The steel structure welding equipment with automatic positioning function according to claim 9, characterized in that: The outer surface of the annular airbag (211) is provided with a wear-resistant rubber ring.

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