A stabilizing welding apparatus for steel structures

Abstract

The application discloses a kind of stable welding equipment for steel structure, it is related to steel structure welding technical field, including welding machine component and base, welding machine component is fixedly installed in the back of base, the upper surface of base is provided with welding platform, welding auxiliary mechanism, the welding auxiliary mechanism is set on the upper surface of welding platform, the welding auxiliary mechanism includes the pressing frame being set on the upper surface of welding platform, the upper surface of the pressing frame is fixedly connected with two connecting strips, multiple cover plates are inserted in the inside of the connecting strip, the lower surface of the cover plate is fixedly connected with the guide piece, the surface of multiple cover plates and guide piece is all provided with guide groove, guide column is slidably inserted in the inside of the guide groove, to solve that argon is only temporarily in the weld position of welding head, in the process of welding head movement, the weld that has not yet solidified or has solidified but still has high temperature still contact with external oxygen, leading to the outer layer of weld and a large amount of oxygen contact problem.

Description

Technical Field

[0001] This invention relates to the field of steel structure welding technology, and more specifically, to a stable welding device for steel structures. Background Technology

[0002] Steel structure welding equipment refers to equipment used to weld steel or steel components into an integral structure. It can complete the high-efficiency and high-quality welding of steel beams, steel columns, trusses and other components in factories or construction sites.

[0003] When welding steel parts, the joint area of ​​two steel parts needs to be instantly melted into a liquid molten pool through the welding head. The atoms in the molten pool diffuse and recrystallize, and then cool and solidify under the protection of the outer gas and slag. Finally, a continuous weld with the same strength as the base metal is formed between the two metals, making them a whole. During the welding process, although argon gas can be used to prevent the molten pool from contacting oxygen and oxidizing during the welding process, the argon gas is only briefly present at the weld joint. During the movement of the welding head, the weld that has not yet solidified or has solidified but is still at a high temperature will still come into contact with external oxygen. This will cause the outer layer of the weld to come into contact with a large amount of oxygen, resulting in cracks and a decrease in strength and toughness. The appearance is also prone to blackening, which affects the aesthetics of the weld. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention aims to provide a stable welding device for steel structures, thereby solving the problem that argon gas is only briefly present at the weld joint, and the weld joint, which has not yet solidified or has solidified but is still at a high temperature during the movement of the welding joint, will still come into contact with external oxygen, resulting in the outer layer of the weld coming into contact with a large amount of oxygen.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A stable welding device for steel structures includes a welding machine assembly and a base. The welding machine assembly is fixedly installed on the back of the base. A welding platform is provided on the upper surface of the base. A welding auxiliary mechanism is provided on the upper surface of the welding platform. The welding auxiliary mechanism includes a pressing frame provided on the upper surface of the welding platform. Two connecting strips are fixedly connected to the upper surface of the pressing frame. Multiple cover plates are inserted into the interior of the connecting strips. Guide plates are fixedly connected to the lower surface of the cover plates. Guide grooves are formed on the surfaces of the multiple cover plates and guide plates. Guide posts are slidably inserted into the interior of the guide grooves. Multiple guide posts are fixedly inserted into the interior of the connecting strips. A welding head is installed on the surface of the welding machine assembly.

[0007] Furthermore, a push cover is fixedly sleeved on the lower end of the welding head. The push cover is located between two sets of guide plates and inside the pressing frame. The cross-sectional shape of the guide plate is a right trapezoid.

[0008] Furthermore, support columns are fixedly connected to both sides of the left and right ends of the cover plate, and a rubber strip is fixedly connected between the two support columns.

[0009] Furthermore, a stabilizing and adapting mechanism is provided on the upper surface of the base. The stabilizing and adapting mechanism includes a ball socket fixedly connected to the upper surface of the base, a ball head provided inside the ball socket, a connecting column fixedly connected to the upper surface of the ball head, the top end of the connecting column fixedly connected to the lower surface of the welding platform, a crossbeam fixedly connected to the front end of the welding machine assembly, and hydraulic rods fixedly connected to both ends of the crossbeam. The bottom end of the hydraulic rods is fixedly connected to both ends of the pressing frame.

[0010] Furthermore, the ball head and the ball socket seat form a ball socket assembly.

[0011] Furthermore, support seats are fixedly connected to the dead corners of the upper surface of the base.

[0012] Furthermore, a welding damping mechanism is provided on the surface of the hydraulic rod. The welding damping mechanism includes protrusions fixedly connected to the fixing parts of the two hydraulic rods, a crossbar fixedly connected between the two protrusions, a plurality of grooves on the lower surface of the crossbar, a connecting block fixedly sleeved on the surface of the welding head, a vertical plate fixedly connected to the upper surface of the connecting block, and a roller rotatably connected to the top of the vertical plate. The roller is adapted to the plurality of grooves.

[0013] Furthermore, a rotating shaft is fixedly connected to the front surface of the connecting block, and a handle is rotatably sleeved on the surface of the rotating shaft.

[0014] Furthermore, a support rod is fixedly connected to the surface of the handle, and a spiral spring is fixedly sleeved on the outer surface of the rotating shaft, with the outer end of the spiral spring fixedly connected to the surface of the support rod.

[0015] Furthermore, an airbag is fixedly connected between the two protrusions, and a connecting frame is fixedly connected to the rear surface of the connecting block. Two extrusion shafts are rotatably connected inside the connecting frame. The airbag is located between the two extrusion shafts. The airbag is elongated and filled with air.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) When welding steel parts, this scheme covers the molten pool generated at the welding part by covering the cover plate. After the argon gas is sprayed out from the welding head, most of the argon gas will still be on the weld, so that the argon gas will stay for a longer time. The molten pool generated during the welding process can still be protected by argon gas before it completely cools and solidifies, thereby reducing contact with external oxygen and increasing the coverage of argon gas to achieve a better protection effect.

[0018] (2) In the process of welding steel parts, the cover plate covers the welding part, which can block the sparks generated during the welding process and prevent the steel parts from generating sparks due to the presence of dirt on the surface. This ensures the welding safety of the workers. In addition, the pressing frame guides the push cover during the welding process, so that the movement path of the welding head and the push cover is a straight line, which provides higher welding quality for the welding process.

[0019] (3) When welding steel parts, the steel parts are placed on the welding platform and the welding platform and the steel parts are adjusted to make the welding part of the steel parts horizontal. Then, the hydraulic rod drives the pressing frame to move downward so that the pressing frame presses on the surface of the steel parts and keeps the welding part of the steel parts horizontal, so that the steel parts can be welded horizontally. Compared with inclined welding, welding on the horizontal plane is more convenient and less prone to deviation.

[0020] (4) In this solution, the roller and multiple grooves cooperate during the movement of the welding head, which allows the welding head to swing repeatedly in small amplitudes to prevent the molten pool from falling. Moreover, the accuracy during the swing is higher than that of manual operation by the staff, which can provide better welding quality.

[0021] (5) In this scheme, the airbag will be continuously squeezed during the movement of the welding head. As the speed of the welding head increases, the airbag will produce a damping effect. The resistance generated by the squeezing between the airbag and the extrusion shaft will also increase with the increase of speed. This can prevent the welding head from moving too fast, which may result in a weld that is too thin or uneven in thickness, thus affecting the welding quality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the stabilizing and adapting mechanism of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the pressing frame part of the present invention;

[0025] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 This is a schematic diagram of the structure of the guide plate portion of the present invention;

[0027] Figure 6 This is a schematic diagram of the welding head portion of the present invention;

[0028] Figure 7 For the present invention Figure 6 Enlarged view at point B in the middle;

[0029] Figure 8 This is a schematic diagram of the airbag portion of the present invention.

[0030] Explanation of the labels in the diagram:

[0031] 1. Welding machine assembly; 2. Base;

[0032] 301. Cover plate; 302. Rubber strip; 303. Pressing frame; 304. Connecting strip; 305. Guide post; 306. Guide groove; 307. Push cover; 308. Welding head; 309. Support post; 310. Guide plate; 311. Welding platform;

[0033] 401. Ball socket; 402. Ball head; 403. Support seat; 404. Connecting column; 405. Crossbeam; 406. Hydraulic rod;

[0034] 501. Protrusion; 502. Horizontal bar; 503. Airbag; 504. Handle; 505. Vertical plate; 506. Roller; 507. Groove; 508. Connecting block; 509. Connecting frame; 510. Rotating shaft; 511. Scroll spring; 512. Support rod; 513. Extrusion shaft. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figures 1-5A stable welding device for steel structures includes a welding machine assembly 1 and a base 2. The welding machine assembly 1 is fixedly installed on the back of the base 2. The welding machine assembly 1 provides argon gas and energy, enabling the welding head 308 to weld steel parts. A welding platform 311 is provided on the upper surface of the base 2 for placing the steel parts to be welded. A welding auxiliary mechanism is provided on the upper surface of the welding platform 311. The welding auxiliary mechanism includes a pressing frame 303 provided on the upper surface of the welding platform 311. Two connecting strips 304 are fixedly connected to the upper surface of the pressing frame 303. Multiple cover plates 301 are inserted inside the connecting strips 304. The cover plates 301 cover the molten pool generated at the welding site. After the argon gas is ejected from the welding head 308, there is still argon gas under the cover plates 301. This means that the molten pool can still be protected by argon gas before it completely cools and solidifies, reducing contact with external oxygen and improving the coverage of the argon gas and the durability of the weld to achieve a better protective effect. Meanwhile, the cover plate 301 can block the sparks generated during the welding process, preventing the steel surface from generating splattering sparks due to the presence of stains, thus ensuring the welding safety of the workers. Furthermore, during the welding process, the pressing frame 303 guides the push cover 307, ensuring that the movement path of the welding head 308 and the push cover 307 is a straight line, providing higher welding quality during the welding process.

[0037] The lower surface of the cover plate 301 is fixedly connected to a guide plate 310. The surfaces of the multiple cover plates 301 and guide plates 310 are provided with guide grooves 306. Guide posts 305 are slidably inserted into the interior of the guide grooves 306. The multiple guide posts 305 are fixedly inserted into the interior of the connecting strip 304. The surface of the welding machine assembly 1 is equipped with a welding head 308. The steel parts can be welded by moving the welding head 308.

[0038] The lower end of the welding head 308 is fixedly fitted with a push cover 307. The push cover 307 is located between two sets of guide plates 310 and inside the pressing frame 303. The cross-sectional shape of the guide plate 310 is a right trapezoid. The push cover 307 and the inclined surface of the guide plate 310 are pressed together, so that the two guide plates 310 at corresponding positions in the two sets drive the cover plate 301 to move away from each other, so that the welding head 308 can move normally. The two sides of the cover plate 301 are fixedly connected to support columns 309. A rubber strip 302 is fixedly connected between the two support columns 309. After the welding head 308 passes, the cover plate 301 can be pushed by the rubber strip 302 to merge the corresponding two cover plates 301, so as to cover the molten pool generated at the welding part again.

[0039] By adopting the above technical solution, when welding steel parts, the steel parts to be welded are placed on the welding platform 311, so that the steel parts are located between the welding platform 311 and the pressing frame 303. The part of the steel parts to be welded is located under the strip hole in the middle of the pressing frame 303. Then, the welding head 308 is pushed to move, and argon gas and energy are provided by the welding machine assembly 1. The steel parts are welded by the moving welding head 308.

[0040] During the welding of the steel parts, the moving welding head 308 drives the moving push cover 307 to move. The push cover 307 presses against the inclined surface of the guide plate 310, causing the two guide plates 310 at corresponding positions in the two sets to move the cover plates 301 away from each other. At this time, the thrust generated by the movement of the cover plates 301 can cause the rubber strip 302 to open and be in a stretched state, so that the push cover 307 pushes open multiple cover plates 301 in sequence, allowing the welding head 308 to move linearly between the two sets of cover plates 301. After the welding head 308 passes through, the cover plate 301 is gradually pushed by the rubber strip 302 until the corresponding two cover plates 301 are merged, covering the molten pool generated at the welding part again. After the argon gas is ejected from the welding head 308, most of the argon gas is still in the space under the cover plate 301, so that the argon gas stays for a longer time. This means that the molten pool generated during the welding process can still be protected by argon gas before it completely cools and solidifies, reducing contact with external oxygen, improving the coverage of argon gas and the durability of the weld, and achieving a better protection effect.

[0041] like Figure 2 As shown, a stabilizing and adapting mechanism is disposed on the upper surface of the base 2. The stabilizing and adapting mechanism includes a ball socket 401 fixedly connected to the upper surface of the base 2. A ball head 402 is disposed inside the ball socket 401. A connecting column 404 is fixedly connected to the upper surface of the ball head 402. The top end of the connecting column 404 is fixedly connected to the lower surface of the welding platform 311. A crossbeam 405 is fixedly connected to the front end of the welding machine assembly 1. Hydraulic rods 406 are fixedly connected to both ends of the crossbeam 405. The bottom end of the hydraulic rods 406 is connected to the pressing frame 303. The left and right ends are fixedly connected, and the hydraulic rod 406 drives the pressing frame 303 to press against the surface of the steel part, so that the welding part of the steel part can be kept in a horizontal state. The ball head 402 and the ball socket seat 401 form a ball socket assembly, which can be freely adjusted at multiple angles to adjust the welding platform 311 and the steel part to keep the welding part of the steel part in a horizontal state. The dead corners on the upper surface of the base 2 are all fixedly connected with support seats 403. The support seats 403 can support the welding platform 311 and prevent the steel part from slipping when placed on the welding platform 311 due to excessive tilt angle.

[0042] By adopting the above technical solution, when welding steel parts, the steel parts are placed on the welding platform 311. If the steel parts are triangular or have a sloping shape, the welding part of the steel parts is on an inclined plane when placed on the welding platform 311. Since the ball socket seat 401 and the ball head 402 form a ball socket assembly, which can be freely adjusted at multiple angles, when the steel parts are placed on the welding platform 311, the welding platform 311 and the steel parts are adjusted to make the welding part of the steel parts horizontal. Then, the hydraulic rod 406 drives the pressing frame 303 to move downward, so that the pressing frame 303 presses on the surface of the steel parts. Since the pressing frame 303 is horizontal, the welding part of the steel parts can be kept horizontal as the pressing frame 303 presses on the surface of the steel parts, and then the steel parts can be welded.

[0043] like Figures 6-8 As shown, a welding damping mechanism is disposed on the surface of a hydraulic rod 406. The welding damping mechanism includes protrusions 501 fixedly connected to the fixing parts of two hydraulic rods 406. A crossbar 502 is fixedly connected between the two protrusions 501. Multiple grooves 507 are formed on the lower surface of the crossbar 502. A connecting block 508 is fixedly sleeved on the surface of the welding head 308. A vertical plate 505 is fixedly connected to the upper surface of the connecting block 508. A roller 506 is rotatably connected to the top of the vertical plate 505. The roller 506 is adapted to the multiple grooves 507. As the roller 506 moves, it disengages from the grooves 507 on the crossbar 502, allowing the connecting block 508 and the welding head 308 to rotate. A rotating shaft 510 is fixedly connected to the front surface of block 508. A handle 504 is rotatably sleeved on the surface of the rotating shaft 510. A support rod 512 is fixedly connected to the surface of the handle 504. A spiral spring 511 is fixedly sleeved on the outer surface of the rotating shaft 510. The outer ring end of the spiral spring 511 is fixedly connected to the surface of the support rod 512. When the roller 506 moves to the bottom of the next groove 507, the spiral spring 511 can drive the roller 506 to move into the next groove 507. As the welding head 308 continues to move, the above steps are repeated, causing the welding head 308 to swing slightly repeatedly. This can prevent the molten pool from falling, and the accuracy during the swing is higher than that of manual operation by the operator, thereby providing a better welding effect.

[0044] An air bladder 503 is fixedly connected between the two protrusions 501. The air bladder 503 can generate a damping effect. The faster the extrusion shaft 513 moves, the greater the resistance generated by the extrusion between the air bladder 503 and the extrusion shaft 513. This can slow down the welding head 308 if it moves too fast, preventing the welding head 308 from moving too fast and causing the weld to be too thin or uneven in thickness, which would affect the welding quality. A connecting frame 509 is fixedly connected to the rear surface of the connecting block 508. Two extrusion shafts 513 are rotatably connected inside the connecting frame 509. The air bladder 503 is located between the two extrusion shafts 513. During the movement of the welding head 308, the extrusion shafts 513 will continuously extrude air into the air bladder 503. The air bladder 503 is elongated and filled with air.

[0045] By adopting the above technical solution, during the welding of steel parts, the worker holds the handle 504 to push the welding head 308 to move. During the movement of the welding head 308, the connecting block 508 and the roller 506 can move synchronously. Since the roller 506 is located inside the groove 507, as the welding head 308 and the roller 506 move, the roller 506 disengages from the groove 507 on the crossbar 502, which allows the connecting block 508 and the welding head 308 to rotate. When the roller 506 moves to the bottom of the next groove 507, the spiral spring 511 drives the roller 506 to move into the next groove 507. As the welding head 308 continues to move, the above steps are repeated, which allows the welding head 308 to swing slightly repeatedly. This can prevent the molten pool from falling, and the accuracy during the swing is higher than that of manual operation by the worker, which can provide better welding results.

[0046] Since the elongated airbag 503 is located between the two extrusion shafts 513, the airbag 503 will be continuously extruded during the movement of the welding head 308. As the moving speed of the welding head 308 increases, the airbag 503 can produce a damping effect. The faster the moving speed of the extrusion shaft 513, the greater the resistance generated by the extrusion between the airbag 503 and the extrusion shaft 513. This can slow down the welding head 308 if the moving speed is too fast, and prevent the welding head 308 from moving too fast, which would result in an excessively thin weld or uneven weld thickness, affecting the welding quality.

[0047] Instructions for use: First, place the steel parts to be welded on the welding platform 311, so that the steel parts are located between the welding platform 311 and the pressing frame 303.

[0048] Next, adjust the welding platform 311 and the steel part to make the welding part of the steel part horizontal;

[0049] Next, the hydraulic rod 406 drives the pressing frame 303 to move downward, so that the pressing frame 303 presses against the surface of the steel part, keeping the welded part of the steel part in a horizontal state.

[0050] Next, hold the handle 504 to move the welding head 308;

[0051] Meanwhile, the welding head 308 repeatedly oscillates to prevent the molten pool from sagging;

[0052] Finally, the steel parts are welded.

[0053] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A stable welding device for steel structures, comprising a welding machine assembly (1) and a base (2), wherein the welding machine assembly (1) is fixedly installed on the back of the base (2), and a welding platform (311) is provided on the upper surface of the base (2), characterized in that: It also includes a welding auxiliary mechanism, which is disposed on the upper surface of the welding platform (311). The welding auxiliary mechanism includes a pressing frame (303) disposed on the upper surface of the welding platform (311). Two connecting strips (304) are fixedly connected to the upper surface of the pressing frame (303). Multiple cover plates (301) are inserted inside the connecting strips (304). Guide plates (310) are fixedly connected to the lower surface of the cover plates (301). Guide grooves (306) are opened on the surfaces of the multiple cover plates (301) and the guide plates (310). Guide posts (305) are slidably inserted inside the guide grooves (306). The multiple guide posts (305) are all connected to the interior of the connecting strips (304). The welding machine assembly (1) is fixedly installed with a welding head (308) on its surface. The lower end of the welding head (308) is fixedly fitted with a push cover (307). The push cover (307) is located between two sets of guide plates (310) and inside the pressing frame (303). The cross-sectional shape of the guide plate (310) is a right trapezoid. Support columns (309) are fixedly connected to both sides of the left and right ends of the cover plate (301). A rubber strip (302) is fixedly connected between the two support columns (309). After the welding head (308) passes, the cover plate (301) is gradually pushed by the rubber strip (302) until the corresponding two cover plates (301) merge, and the molten pool generated at the welding part is covered again.

2. The stable welding equipment for steel structures according to claim 1, characterized in that: It also includes a stabilization and adaptation mechanism, which is disposed on the upper surface of the base (2). The stabilization and adaptation mechanism includes a ball socket (401) fixedly connected to the upper surface of the base (2). A ball head (402) is disposed inside the ball socket (401). A connecting column (404) is fixedly connected to the upper surface of the ball head (402). The top end of the connecting column (404) is fixedly connected to the lower surface of the welding platform (311). A crossbeam (405) is fixedly connected to the front end of the welding machine assembly (1). Hydraulic rods (406) are fixedly connected to both the left and right ends of the crossbeam (405). The bottom end of the hydraulic rods (406) is fixedly connected to the left and right ends of the pressing frame (303).

3. The stable welding equipment for steel structures according to claim 2, characterized in that: The ball head (402) and the ball socket (401) together form a ball socket assembly.

4. The stable welding equipment for steel structures according to claim 2, characterized in that: The dead corners on the upper surface of the base (2) are all fixedly connected to support seats (403).

5. A stable welding device for steel structures according to claim 2, characterized in that: It also includes a welding damping mechanism, which is disposed on the surface of the hydraulic rod (406). The welding damping mechanism includes a protrusion (501) fixedly connected to the fixing part of the two hydraulic rods (406). A crossbar (502) is fixedly connected between the two protrusions (501). A plurality of grooves (507) are provided on the lower surface of the crossbar (502). A connecting block (508) is fixedly sleeved on the surface of the welding head (308). A vertical plate (505) is fixedly connected to the upper surface of the connecting block (508). A roller (506) is rotatably connected to the top of the vertical plate (505). The roller (506) is adapted to the plurality of grooves (507).

6. The stable welding equipment for steel structures according to claim 5, characterized in that: The front surface of the connecting block (508) is fixedly connected to a rotating shaft (510), and a handle (504) is rotatably sleeved on the surface of the rotating shaft (510).

7. A stable welding device for steel structures according to claim 6, characterized in that: A support rod (512) is fixedly connected to the surface of the handle (504), and a spiral spring (511) is fixedly sleeved on the outer surface of the rotating shaft (510). The outer ring end of the spiral spring (511) is fixedly connected to the surface of the support rod (512).

8. A stable welding device for steel structures according to claim 5, characterized in that: An airbag (503) is fixedly connected between the two protrusions (501). A connecting frame (509) is fixedly connected to the rear surface of the connecting block (508). Two extrusion shafts (513) are rotatably connected inside the connecting frame (509). The airbag (503) is located between the two extrusion shafts (513). The airbag (503) is elongated and filled with air.

Images