A large welding equipment

Abstract

The present invention relates to the technical field of large steel structure welding, and specifically to a large welding equipment, including a fixing unit and a welding unit. The present invention supports and fixes large arc parts of different sizes and curvatures by cooperating with a support block and a right-angle block, clamps and limits small arc parts of different sizes and curvatures by a moving column, so that they are in close contact with the large arc parts, and fixes the small arc parts of different sizes and curvatures by a suction frame, thereby improving the use efficiency of the equipment, so as to achieve the purpose of fixing and aligning arc-shaped steel structure components of different sizes and curvatures, thereby improving the welding quality, and cooperating with an elastic plate and a limiting sleeve plate to make the welding trajectory of the welding head the same as the size and curvature of the large arc part, so that the welding head can quickly weld the connection between the large arc part and the small arc part, while ensuring the welding quality and improving the quality of the arc steel structure after welding.

Description

Technical Field

[0001] The invention relates to the technical field of large-scale steel structure welding, in particular to large-scale welding equipment. Background Art

[0002] Curved steel structural members among large steel structural members are widely used in the fields of architecture and engineering, and are mainly used in: building roofs and facades, bridge structures, stadiums and special-purpose buildings.

[0003] Arc-shaped steel structure components are generally welded by large-scale welding equipment. After the large arc parts and small arc parts of the arc-shaped steel structure are aligned by the equipment, the workers hold the welding equipment to weld the connection between the large arc parts and the small arc parts. The welding efficiency is low, and the workers need to hold the welding equipment to weld along the arc connection between the large arc parts and the small arc parts, resulting in low welding quality. The alignment method of the large arc parts and the small arc parts is generally to horizontally lay the small arc parts on one side on the processing plane, vertically place the large arc parts on the upper end of the small arc parts, and then horizontally lay the small arc parts on the upper end of the large arc parts again, and use a machine to align the bottom end of the large arc part with the bottom end of the arc of the small arc part. However, since the curvature and size of each arc part are different, it is impossible to use a machine that fits the curvature of the arc part for alignment, resulting in the inability to ensure that the bottom end of the large arc part is accurately aligned with the bottom end of the arc of the small arc part, resulting in low quality of the arc steel structure after welding. Summary of the invention

[0004] In view of the above problems, the embodiment of the present application provides a large-scale welding device to solve the technical problems of low welding efficiency and low welding quality in the related art, which leads to low quality of arc steel structure after welding. In order to achieve the above purpose, the embodiment of the present application provides the following technical solutions.

[0005] The first aspect of the embodiment of the present application provides a large-scale welding equipment, including a fixing unit and a welding unit, the welding unit is arranged on the fixing unit, and is used for welding the arc-shaped steel structure components after being fixed and aligned; the fixing unit includes a workbench, a bidirectional screw rod 1 is rotatably connected to the middle part of the workbench, a motor 1 is fixedly installed on the front end of the workbench through a motor seat, the output shaft of the motor 1 is fixedly connected to the bidirectional screw rod 1 through a coupling, the bidirectional screw rod 1 is symmetrically connected to a right-angle block in a threaded connection manner in the front and back, the right-angle block and the workbench are connected in a sliding fit manner, and fixing frames are arranged on the opposite ends of the upper side of the right-angle block, a threaded rod is rotatably connected to the middle part of the workbench, a control frame is arranged on the workbench, the control frame is fixedly connected to the threaded rod, a support frame is connected to the threaded rod in a threaded connection manner, a bidirectional screw rod 2 is rotatably connected to the middle part of the support frame, a motor 2 is fixedly installed on the right end of the support frame through the motor seat, the output shaft of the motor 2 is connected to the Two bidirectional screws are fixedly connected, and the two bidirectional screws are symmetrically connected to the moving column in a threaded connection manner. The opposite ends of the moving column are fixedly installed with suction racks, and a right-angle bracket is fixedly installed on the upper end of the workbench, and a force cylinder is fixedly installed on the lower end of the horizontal section of the right-angle bracket, and an extrusion block is fixedly installed on the telescopic end of the force cylinder; the welding unit includes a connecting frame, and connecting frames are arranged on the left and right ends of the right-angle block. A limiting sleeve plate is evenly fixedly installed at the end of the connecting frame on the same side, and an elastic plate with elasticity is hinged in the middle limiting sleeve plate, and the front and rear sides of the elastic plate respectively extend into the limiting sleeve plates on the front and rear sides, and anti-slip blocks are fixedly installed at the front and rear ends of the elastic plate, and a limiting guide block is evenly fixedly installed on the upper end of the elastic plate, and the limiting guide blocks are rotatably connected by a pin shaft, and an electric guide slider is arranged at the outer end of the limiting guide block, and a mechanical arm is fixedly installed on the upper end of the electric guide slider, and a welding head is fixedly installed at the end of the mechanical arm, and a smoking rack is arranged on the welding head.

[0006] According to an embodiment of the present invention, the fixing frame includes an electromagnetic plate 1, rectangular grooves are provided at opposite ends of the upper side of the right-angle block, an electromagnetic plate 1 is fixedly installed in the rectangular groove, a fixing spring is fixedly installed in the rectangular groove, a magnet block 1 is fixedly installed at the end of the fixing spring, the magnetism of the electromagnetic plate 1 after power-on is the same as that of the magnet block 1, a limit block is fixedly installed at one end away from the magnet block 1, a rubber airbag 1 is fixedly installed at the opposite end of the limit block, a plurality of close-fitting plates are fixedly installed at the opposite end of the rubber airbag, and the close-fitting plates are rotatably connected by pins.

[0007] According to an embodiment of the present invention, the support frame includes a support block, a support block is connected to the threaded rod in a threaded connection manner, a retractable rod 1 is fixedly connected between the support block and the workbench, a bidirectional screw rod 2 is rotatably connected to the middle of the support block, a rubber airbag 2 is fixedly installed on the upper end surface of the support block, a support plate is evenly fixedly installed on the upper end of the rubber airbag 2, and the support plates are rotatably connected by a pin shaft.

[0008] According to an embodiment of the present invention, the movable column is rotatably connected to a limit plate via a pin shaft at one end away from the other, a torsion spring is sleeved on the pin shaft, one end of the torsion spring is fixedly connected to the limit plate, and the other end of the torsion spring is fixedly connected to the movable column, and electromagnetic plates 2 are fixedly installed on opposite ends of the limit plates, and magnet block 2 is fixedly installed on the side of the movable column close to the electromagnetic plate 2, and the magnetism of the electromagnetic plate 2 after power is turned on is opposite to that of the magnet block 2.

[0009] According to an embodiment of the present invention, the suction rack includes a rubber suction cup, and a plurality of evenly arranged rubber suction cups are fixedly installed on the opposite ends of the moving column, the rubber suction cups are connected to each other, an air pump is fixedly installed on the upper end of the moving column, and a connecting pipe is fixedly connected between the air pump and the adjacent rubber suction cups.

[0010] According to an embodiment of the present invention, the connecting frame includes a connecting rod 1, and connecting rod 1 is fixedly installed on both ends of the right angle block, and connecting rod 2 is symmetrically fixedly installed on both ends of the support frame, and the ends of connecting rod 1 and connecting rod 2 on the same side are fixedly installed with limiting sleeves.

[0011] According to an embodiment of the present invention, the control frame includes bevel gear 1, which is rotatably connected to the workbench, a control handle is fixedly installed at the front end of bevel gear 1, and bevel gear 2 is fixedly installed at the lower end of the threaded rod, and bevel gear 1 is meshed with bevel gear 2.

[0012] According to an embodiment of the present invention, the smoking rack comprises a smoking port, the smoking port is fixedly mounted on the welding head, a vacuum cleaner is fixedly mounted on the mechanical arm, and the vacuum cleaner is fixedly connected to the smoking port.

[0013] It can be seen from the above technical solutions that the present invention has the following advantages:

[0014] 1. In the present invention, the two ends of large arc parts of different sizes are clamped and fixed by right-angle blocks, the large arc parts of different sizes and curvatures are supported and fixed by the support block and the right-angle block, the small arc parts of different sizes and curvatures are clamped and limited by the movable column to make them close to the large arc parts, and the small arc parts of different sizes and curvatures are fixed by the suction frame, thereby improving the use efficiency of the equipment, so as to achieve the purpose of fixing and aligning the arc-shaped steel structure components of different sizes and curvatures, thereby improving the welding quality, and the elastic plate and the limiting sleeve are matched to make the welding trajectory of the welding head the same as the size and curvature of the large arc part, so that the welding head can quickly weld the connection between the large arc part and the small arc part, while ensuring the welding quality and improving the quality of the arc steel structure after welding.

[0015] 2. In the present invention, after the right-angle block is in close contact with the large arc-shaped part, the electromagnetic plate 1 is energized, and under the action of the magnetic repulsion force, the limit block and the rubber airbag 1 move toward the surface of the large arc-shaped part until the close contact plate on the rubber airbag 1 contacts the surface of the large arc-shaped part. Since the rubber airbag 1 is elastic, after the rubber airbag 1 is subjected to the extrusion force, the close contact plate on the rubber airbag 1 is in close contact with the surface of the large arc-shaped part, so as to achieve the purpose of further fixing the large arc-shaped parts with different curvatures, and prevent the large arc-shaped parts from moving during the welding process, thereby affecting the welding quality.

[0016] 3. In the present invention, by energizing the electromagnetic plate 2, the magnetic block 2 is subjected to magnetic attraction, so that the limit plate and the movable column are attracted to each other, ensuring that the right-angle structure formed by the limit plate and the movable column is fixed, and the right-angle structure formed by the limit plate and the movable column is driven to move toward each other by the two-way screw rod 2, so as to squeeze the small arc-shaped parts on the left and right sides, so that they are closely aligned with the large arc-shaped parts, ensure the welding quality, and improve the quality of the arc-shaped steel structure after welding. When the welding is completed, the electromagnetic plate 2 is powered off, and the two-way screw rod 2 is used to drive the movable column to move toward each other, and the movable column enters the support plate. At this time, the limit plate enters the support plate along with the movable column, and the limit plate rotates, thereby smoothly entering the support plate. The finished product after welding is no longer hindered and can be quickly removed by a hoisting machine, thereby improving the welding efficiency.

[0017] 4. In the present invention, the gas content between the rubber suction cup and the small arc-shaped part is controlled by an air pump to control whether the rubber suction cup is attracted to the small arc-shaped part and fix it. The elastic plate is restricted by the cooperation of connecting rod 1 and connecting rod 2 to make its curvature the same as that of the fixed large arc-shaped part, thereby ensuring that the welding trajectory is the same as that of the large arc-shaped part, improving the welding efficiency, and at the same time improving the quality of the arc-shaped steel structure after welding.

[0018] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by a large-scale welding equipment provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1A schematic diagram of a main-view stereoscopic structure provided according to an embodiment of the present invention is shown.

[0021] Figure 2 A schematic diagram of a main cross-sectional plane structure provided according to an embodiment of the present invention is shown.

[0022] Figure 3 A schematic diagram of a main viewing plane structure provided according to an embodiment of the present invention is shown.

[0023] Figure 4 Shows Figure 3 AA cross-sectional view.

[0024] Figure 5 Shows Figure 4 A local enlarged view of location N.

[0025] Figure 6 Shows Figure 4 A local enlarged view of point M.

[0026] Figure 7 Shows Figure 3 A cross-sectional view of the BB.

[0027] The above drawings include the following reference numerals:

[0028] 1. Fixing unit; 11. Workbench; 12. Two-way screw rod 1; 13. Motor 1; 14. Right angle block; 15. Fixing frame; 151. Electromagnetic plate 1; 152. Fixing spring; 153. Magnet block 1; 154. Limiting block; 155. Rubber airbag 1; 156. Close plate; 16. Threaded rod; 17. Control frame; 171. Bevel gear 1; 172. Control handle; 173. Bevel gear 2; 18. Support frame; 181. Support block; 182. Telescopic rod 1; 183. Rubber airbag 2; 184. Support plate; 19. Two-way screw rods; 191. Motor 2; 192. Moving column ;1921, limit plate;1922, torsion spring;1923, electromagnetic plate 2;1924, magnet block 2;20, suction rack;201, right-angle bracket;202, force cylinder;203, extrusion block;204, rubber suction cup;205, air pump;206, connecting pipe;2, welding unit;21, connecting frame;211, connecting rod 1;212, connecting rod 2;22, limit sleeve;23, elastic plate;24, anti-slip block;25, limit guide rail block;26, electric guide slider;27, mechanical arm;28, welding head;29, smoking rack;291, smoking port;292, vacuum cleaner. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0030] See also Figure 1 , Figure 4 and Figure 7A large welding device comprises a fixing unit 1 and a welding unit 2. The welding unit 2 is arranged on the fixing unit 1 and is used to weld the fixed and aligned arc-shaped steel structure components. The fixing unit 1 comprises a workbench 11. A bidirectional screw 12 is rotatably connected to the middle of the workbench 11. A motor 13 is fixedly installed at the front end of the workbench 11 through a motor seat. The output shaft of the motor 13 is fixedly connected to the bidirectional screw 12 through a coupling. The bidirectional screw 12 is symmetrically connected to a right-angle block 14 in a threaded connection manner. The right-angle block 14 is connected to the workbench 1 1 are connected by sliding fit, a fixing frame 15 is provided at the opposite ends of the upper side of the right-angle block 14, a threaded rod 16 is rotatably connected to the middle of the workbench 11, a control frame 17 is provided on the workbench 11, the control frame 17 is fixedly connected to the threaded rod 16, a support frame 18 is connected to the threaded rod 16 by threaded connection, a bidirectional screw rod 19 is rotatably connected to the middle of the support frame 18, a motor 191 is fixedly installed on the right end of the support frame 18 through a motor seat, the output shaft of the motor 191 is fixedly connected to the bidirectional screw rod 19 through a coupling, and the bidirectional screw The two 19 are symmetrically connected to the movable column 192 in a threaded connection manner, and the opposite ends of the movable column 192 are fixedly installed with a suction frame 20, and the upper end of the workbench 11 is fixedly installed with a right-angle bracket 201, and the lower end of the horizontal section of the right-angle bracket 201 is fixedly installed with a force cylinder 202, and the telescopic end of the force cylinder 202 is fixedly installed with an extrusion block 203; the welding unit 2 includes a connecting frame 21, and the left and right ends of the right-angle block 14 are provided with a connecting frame 21, and the connecting frame 21 on the same side, and the end of the connecting frame 21 is evenly fixedly installed with a limit sleeve 22, and the limit sleeve 22 in the middle is fixedly installed. An elastic plate 23 with elasticity is hinged inside the positioning sleeve 22, and the front and rear sides of the elastic plate 23 extend into the limiting sleeve 22 on the front and rear sides respectively. Anti-dropping blocks 24 are fixedly installed at both ends of the elastic plate 23. A limiting guide rail block 25 is evenly fixedly installed on the upper end of the elastic plate 23. The limiting guide rail blocks 25 are rotatably connected by a pin shaft. An electric guide slider 26 is arranged at the outer end of the limiting guide rail block 25. A mechanical arm 27 is fixedly installed on the upper end of the electric guide slider 26. A welding head 28 is fixedly installed at the end of the mechanical arm 27, and a smoking rack 29 is arranged on the welding head 28.First, the large arc-shaped member in the arc-shaped steel structure is hoisted on the right-angle block 14. At this time, the small arc-shaped members in the arc-shaped steel structure are hoisted on the left and right sides of the large arc-shaped member respectively. At this time, the motor 13 drives the bidirectional screw 12 to rotate, thereby driving the right-angle block 14 to move toward each other until the right-angle block 14 is tightly attached to the front and rear ends of the large arc-shaped member. At this time, the large arc-shaped member is further positioned by the fixing frame 15. At this time, the control frame 17 drives the threaded rod 16 to rotate, thereby driving the support block 181 to move upward to support the large arc-shaped member. At this time, the force cylinder 202 drives the extrusion block 203 to move downward, tightly attached to the upper end surface of the large arc-shaped member, and tightly attached to the support block 181. The large arc-shaped part is clamped by the motor 191, and the bidirectional screw 19 is driven to rotate, thereby driving the moving column 192 to move toward each other, clamping the small arc-shaped parts on the left and right sides, and the suction frame 20 is attracted to the small arc-shaped parts to achieve the purpose of fixing the small arc-shaped parts on the left and right sides. At this time, the limit sleeve 22 on the connecting frame 21 limits the elastic plate 23, so that its bending curvature is the same as that of the large arc-shaped part. At this time, the electric guide slider 26 drives the mechanical arm 27 to move together, thereby driving the welding head 28 to weld the connection between the large arc-shaped part and the small arc-shaped part, and the smoke generated during the welding process is absorbed and filtered by the smoke rack 29. ;

[0031] See also Figure 5 The fixing frame 15 includes an electromagnetic plate 151, and rectangular grooves are provided at opposite ends of the upper side of the right-angle block 14. The electromagnetic plate 151 is fixedly installed in the rectangular groove, and a fixed spring 152 is fixedly installed in the rectangular groove. A magnetic block 153 is fixedly installed at the end of the fixed spring 152. The magnetism of the electromagnetic plate 151 after power-on is the same as that of the magnetic block 153. A limit block 154 is fixedly installed at the far end of the magnetic block 153. A rubber airbag 155 is fixedly installed at the opposite end of the limit block 154. A plurality of close-fitting plates are fixedly installed at the opposite end of the rubber airbag 155. 156, the close-fitting plate 156 is rotatably connected by a pin shaft; when the right-angle block 14 is in close contact with the large arc-shaped part, the electromagnetic plate 151 is energized, and under the action of the magnetic repulsion force, the limit block 154 and the rubber airbag 155 move toward the surface of the large arc-shaped part until the close-fitting plate 156 on the rubber airbag 155 contacts the surface of the large arc-shaped part. Since the rubber airbag 155 is elastic, after the rubber airbag 155 is subjected to the extrusion force, the close-fitting plate 156 on the rubber airbag 155 is in close contact with the surface of the large arc-shaped part, so as to achieve the purpose of further fixing the large arc-shaped parts with different curvatures.

[0032] See also Figure 6The support frame 18 includes a support block 181, and the support block 181 is connected to the threaded rod 16 in a threaded connection manner. A telescopic rod 182 is fixedly connected between the support block 181 and the workbench 11. A bidirectional screw 19 is rotatably connected to the middle of the support block 181. A rubber airbag 183 is fixedly installed on the upper end surface of the support block 181, and a support plate 184 is evenly fixedly installed on the upper end of the rubber airbag 183. The support plates 184 are rotatably connected by pins. The support block 181 is ensured to move up and down under the limit of the threaded rod 16 by the telescopic rod 182, and the elastic rubber airbag 183 makes the support plate 184 close to large arc-shaped parts with different curvatures, so as to achieve the purpose of supporting and positioning the large arc-shaped parts.

[0033] See also Figure 2 , the ends of the movable columns 192 that are away from each other are rotatably connected to the limit plate 1921 through a pin shaft, a torsion spring 1922 is sleeved on the pin shaft, one end of the torsion spring 1922 is fixedly connected to the limit plate 1921, and the other end of the torsion spring 1922 is fixedly connected to the movable column 192, and the opposite ends of the limit plate 1921 are fixedly installed with an electromagnetic plate 1923, and a magnet block 1924 is fixedly installed on the side of the movable column 192 close to the electromagnetic plate 1923. The magnetism of the electromagnetic plate 1923 after power-on is opposite to that of the magnet block 1924; by powering on the electromagnetic plate 1923, the magnet block 1924 is subjected to magnetic attraction, so that the limit plate 1921 and the movable column 192 are attracted to each other, ensuring that the right-angle structure formed by the limit plate 1921 and the movable column 192 is fixed, and the limit plate 1921 is driven by the bidirectional screw 19 The right-angle structure formed by the moving column 192 moves toward each other to squeeze the small arc-shaped parts on the left and right sides so that they are closely aligned with the large arc-shaped parts. When welding is completed, the electromagnetic plate 1923 is powered off. At this time, the moving column 192 is driven by the two-way screw 19 to move toward each other, and the moving column 192 enters the support plate 184. At this time, the limit plate 1921 enters the support plate 184 along with the moving column 192, and the limit plate 1921 rotates, thereby smoothly entering the support plate 184. The welded product is no longer hindered and can be quickly removed using a lifting machine. When the two-way screw 19 drives the moving column 192 to move away from each other, driven by the torsion spring 1922, the limit plate 1921 extends out of the support plate 184, and then, driven by the torsion spring 1922, the limit plate 1921 and the moving column 192 form a right-angle structure again.

[0034] See also Figure 2The suction rack 20 includes a rubber suction cup 204, and a plurality of evenly arranged rubber suction cups 204 are fixedly installed at the opposite ends of the moving column 192. The rubber suction cups 204 are connected to each other. An air pump 205 is fixedly installed at the upper end of the moving column 192, and a connecting pipe 206 is fixedly connected between the air pump 205 and the adjacent rubber suction cups 204; the air pump 205 is used to control the gas content between the rubber suction cup 204 and the small arc-shaped part, and control whether the rubber suction cup 204 is attracted to the small arc-shaped part to fix it.

[0035] See also Figure 1 The connecting frame 21 includes a connecting rod 1 211, and the left and right ends of the right-angle block 14 are fixedly installed with the connecting rod 1 211, and the left and right ends of the support frame 18 are symmetrically fixedly installed with the connecting rod 212. The ends of the connecting rod 1 211 and the connecting rod 212 on the same side are fixedly installed with a limiting sleeve 22; through the cooperation of the connecting rod 1 211 and the connecting rod 2 212, the elastic plate 23 is limited so that its curvature is the same as the curvature of the fixed large arc part, ensuring that the welding trajectory is the same as the curvature of the large arc part.

[0036] See also Figure 4 The control frame 17 includes a bevel gear 171, which is rotatably connected to the workbench 11. A control handle 172 is fixedly installed at the front end of the bevel gear 171, and a bevel gear 173 is fixedly installed at the lower end of the threaded rod 16. The bevel gear 171 is meshed with the bevel gear 173; the bevel gear 171 is driven to rotate by the control handle 172, thereby driving the bevel gear 173 and the threaded rod 16 to rotate.

[0037] See also Figure 2 The smoking rack 29 includes a smoking port 291, the smoking port 291 is fixedly installed on the welding head 28, and a vacuum cleaner 292 is fixedly installed on the mechanical arm 27, and the vacuum cleaner 292 is fixedly connected to the smoking port 291; the smoke generated during the welding process is absorbed and filtered by the vacuum cleaner 292 and the smoking port 291, and the filtered air is discharged.

[0038] Working principle of the present invention: Step 1: First, hoist the large arc-shaped member in the arc-shaped steel structure member on the right-angle block 14, and then hoist the small arc-shaped members in the arc-shaped steel structure member on the left and right sides of the large arc-shaped member respectively, and drive the bidirectional screw 12 to rotate through the motor 13, thereby driving the right-angle blocks 14 to move toward each other until they are tightly attached to the front and rear ends of the large arc-shaped member, and then the large arc-shaped member is further positioned through the fixing frame 15.

[0039] Step 2: The threaded rod 16 is driven to rotate through the control frame 17, thereby driving the support block 181 to move upward to support the large arc-shaped part, and the extrusion block 203 is driven downward by the force cylinder 202 to fit tightly against the upper end surface of the large arc-shaped part, thereby cooperating with the support block 181 to clamp the large arc-shaped part.

[0040] Step 3: The bidirectional screw 2 19 is driven to rotate by the motor 2 191, thereby driving the moving column 192 to move toward each other, clamping the small arc-shaped parts on the left and right sides, and attracting the small arc-shaped parts through the suction frame 20 to achieve the purpose of fixing the small arc-shaped parts on the left and right sides. At this time, the limiting sleeve 22 on the connecting frame 21 limits the elastic plate 23 so that its bending curvature is the same as that of the large arc-shaped part. At this time, the electric guide slider 26 drives the mechanical arm 27 to move together, thereby driving the welding head 28 to weld the connection between the large arc-shaped part and the small arc-shaped part.

[0041] In the description of the present invention, it is necessary to understand that the terms "center", "middle", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "end", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In addition, the terms "first", "second", "number one", "number two", "one", "two" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0043] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A large welding equipment, characterized in that , comprising a fixing unit (1) and a welding unit (2), wherein the welding unit (2) is arranged on the fixing unit (1) and is used to weld the arc-shaped steel structure component after being fixed and aligned; The fixing unit (1) comprises a workbench (11), a bidirectional screw rod (12) is rotatably connected to the middle of the workbench (11), a motor (13) is fixedly installed on the front end of the workbench (11) through a motor seat, an output shaft of the motor (13) is fixedly connected to the bidirectional screw rod (12) through a coupling, the bidirectional screw rod (12) is symmetrically connected to a right-angle block (14) in a threaded connection manner, the right-angle block (14) and the workbench (11) are connected in a sliding fit manner, a fixing frame (15) is arranged on the opposite ends of the upper side of the right-angle block (14), a threaded rod (16) is rotatably connected to the middle of the workbench (11), a control frame (17) is arranged on the workbench (11), the control frame (17) is fixedly connected to the threaded rod (16), and a support frame is connected to the threaded rod (16) in a threaded connection manner (18), a bidirectional screw rod (19) is rotatably connected to the middle of the support frame (18), a motor (191) is fixedly installed on the right end of the support frame (18) through a motor seat, an output shaft of the motor (191) is fixedly connected to the bidirectional screw rod (19) through a coupling, the bidirectional screw rod (19) is symmetrically connected to a moving column (192) in a threaded connection, and a suction frame (20) is fixedly installed on the opposite ends of the moving column (192), a right-angle bracket (201) is fixedly installed on the upper end of the workbench (11), a force cylinder (202) is fixedly installed on the lower end of the horizontal section of the right-angle bracket (201), and an extrusion block (203) is fixedly installed on the telescopic end of the force cylinder (202); The welding unit (2) comprises a connecting frame (21), and the connecting frames (21) are arranged at both the left and right ends of the right-angle block (14). A limiting sleeve (22) is evenly fixedly installed at the end of the connecting frame (21) on the same side. An elastic plate (23) with elasticity is hinged inside the limiting sleeve (22) in the middle. The front and rear sides of the elastic plate (23) extend into the limiting sleeves (22) on the front and rear sides respectively. Anti-slip blocks (24) are fixedly installed at both the front and rear ends of the elastic plate (23). A limiting guide block (25) is evenly fixedly installed at the upper end of the elastic plate (23). The limiting guide blocks (25) are rotatably connected by a pin shaft. An electric guide slider (26) is arranged at the outer end of the limiting guide slider (25). A mechanical arm (27) is fixedly installed at the upper end of the electric guide slider (26). A welding head (28) is fixedly installed at the end of the mechanical arm (27). A smoking rack (29) is arranged on the welding head (28). The fixing frame (15) comprises an electromagnetic plate (151), and rectangular grooves are provided at opposite ends of the upper side of the right-angle block (14), an electromagnetic plate (151) is fixedly installed in the rectangular groove, a fixing spring (152) is fixedly installed in the rectangular groove, a magnetic block (153) is fixedly installed at the end of the fixing spring (152), the magnetism of the electromagnetic plate (151) after power is turned on is the same as the magnetism of the magnetic block (153), a limiting block (154) is fixedly installed at the end away from the magnetic block (153), a rubber airbag (155) is fixedly installed at the opposite end of the limiting block (154), and a plurality of close-fitting plates (156) are fixedly installed at the opposite end of the rubber airbag (155), and the close-fitting plates (156) are rotatably connected via pins; The ends of the movable columns (192) that are away from each other are rotatably connected to the limit plate (1921) via a pin shaft, a torsion spring (1922) is sleeved on the pin shaft, one end of the torsion spring (1922) is fixedly connected to the limit plate (1921), and the other end of the torsion spring (1922) is fixedly connected to the movable column (192), and the opposite ends of the limit plate (1921) are fixedly installed with electromagnetic plates 2 (1923), and the side of the movable column (192) close to the electromagnetic plates 2 (1923) is fixedly installed with magnet blocks 2 (1924), and the magnetism of the electromagnetic plates 2 (1923) after power is turned on is opposite to the magnetism of the magnet blocks 2 (1924).

2. A large welding device according to claim 1, characterized in that: The support frame (18) comprises a support block (181), the support block (181) is connected to the threaded rod (16) in a threaded connection manner, a telescopic rod (182) is fixedly connected between the support block (181) and the workbench (11), a bidirectional screw rod (19) is rotatably connected to the middle of the support block (181), a rubber airbag (183) is fixedly installed on the upper end surface of the support block (181), a support plate (184) is evenly fixedly installed on the upper end of the rubber airbag (183), and the support plates (184) are rotatably connected to each other via a pin shaft.

3. A large welding device according to claim 1, characterized in that: The suction piece rack (20) comprises a rubber suction cup (204); a plurality of evenly arranged rubber suction cups (204) are fixedly mounted on opposite ends of the moving column (192); the rubber suction cups (204) are interconnected; an air pump (205) is fixedly mounted on the upper end of the moving column (192); and a connecting pipe (206) is fixedly connected between the air pump (205) and the adjacent rubber suction cups (204).

4. A large welding device according to claim 1, characterized in that: The connecting frame (21) comprises a connecting rod 1 (211), the connecting rod 1 (211) being fixedly mounted on both the left and right ends of the right-angle block (14), the connecting rod 2 (212) being symmetrically fixedly mounted on both the left and right ends of the support frame (18), and a limiting sleeve plate (22) being fixedly mounted on both the ends of the connecting rod 1 (211) and the connecting rod 2 (212) on the same side.

5. A large welding device according to claim 1, characterized in that: The control frame (17) comprises a bevel gear 1 (171), the bevel gear 1 (171) is rotatably connected to the workbench (11), a control handle (172) is fixedly mounted on the front end of the bevel gear 1 (171), a bevel gear 2 (173) is fixedly mounted on the lower end of the threaded rod (16), and the bevel gear 1 (171) is meshed with the bevel gear 2 (173).

6. A large welding device according to claim 1, characterized in that: The smoking rack (29) comprises a smoking port (291), the smoking port (291) is fixedly mounted on the welding head (28), a dust collector (292) is fixedly mounted on the mechanical arm (27), and the dust collector (292) is fixedly connected to the smoking port (291).

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