Fixing structure for welding of steel plates of different sizes

Abstract

The utility model relates to the technical field of welding and fixing, in particular to a welding and fixing structure for steel plates with different sizes, which comprises an operating table, a first fixing plate for fixing a large steel plate is arranged at the upper end of the operating table, and a first pressing plate for pressurizing is arranged at the upper end of the first fixing plate. The upper end of the first pressing plate is fixedly connected with a connecting rod used for connection, a connecting plate used for moving the first pressing plate is arranged at the upper end of the connecting plate, a second fixing plate used for fixing a small steel plate is arranged on one side of the first fixing plate, and the upper end of the side, located on the second fixing plate, of the connecting plate is fixedly connected with a motor. After the large steel plate is fixed, the blower gun can spray hot air to the welding position of the large steel plate, dust at the welding position of the large steel plate is blown away, the welding position is preheated while dust is removed, and therefore the welding stress is reduced, the welding quality is improved, and the welding fixing structure for the steel plates of different sizes is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding and fixing, in particular to a welding and fixing structure for steel plates of different sizes. Background Art

[0002] With the continuous advancement of science and technology, the quality requirements for steel plate welding are becoming higher and higher. The firmness of the steel plate fixation during welding directly affects the welding quality. Therefore, a structure that can provide stable fixation is needed to ensure the accuracy and strength of welding.

[0003] Traditional welding cannot clean the welding area before welding, which may cause unstable welding and generate a large amount of smoke and dust during welding, causing certain harm to workers.

[0004] In view of this, the existing problems are studied and improved, and a welding fixing structure for steel plates of different sizes is provided. The structure has a reasonable design, high stability, and takes into account all aspects of application. The purpose is to solve the problem and improve the practical value through this technology. Utility Model Content

[0005] After the large steel plate is fixed, the utility model can spray hot air from the air gun to the welding position of the large steel plate to blow away the dust at the welding position of the large steel plate. While removing the dust, the welding position is also preheated, thereby reducing the welding stress and improving the welding quality, realizing a welding fixing structure for steel plates of different sizes.

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[0007] Preferably: a groove is opened at the center of the upper end of the operating table, the first fixed plate is fixedly connected to the upper end of the operating table, and is located on one side of the groove, the first pressure plate is fixedly connected to the connecting plate through a connecting rod, and the center of the connecting rod is aligned with the center of the first pressure plate.

[0008] Preferably: the connecting plate is fixed to the upper end of the operating table by a push rod, the second fixed plate is fixedly connected to the opposite side of the first fixed plate in the groove, both sides of the connecting plate are aligned with the edges of the first fixed plate and the second fixed plate, and the first pressure plate fixes the steel plate by lowering the connecting plate.

[0009] Preferably: the motor is fixedly connected to the upper end of the connecting plate, which is aligned with the center of the second fixed plate. The output end of the motor is movably connected to a threaded rod, and the threaded rod is connected to the center of the second pressure plate. The second pressure plate is lowered by rotating the threaded rod by the motor, and the initial position of the second pressure plate is higher than the first pressure plate.

[0010] Preferably, the output end of the cylinder is movably connected to a push rod, which passes through the operating table and is fixedly connected to the upper end connecting plate. The end of the push rod connected to the connecting plate is a section, and the outer diameter of the push rod matches the inner diameter of the four-way connecting valve.

[0011] Preferably: the four-way connecting valve is located at the upper end of the operating table, its push rod passes through the four-way connecting valve, and sealing ports are provided at both ends of the four-way connecting valve passed through by the push rod, the air intake pipe is fixedly connected to the side of the four-way connecting valve close to the second fixed plate, and the other end of the air intake pipe is connected to the hot air blower.

[0012] Preferably, the air gun is fixedly connected to one side of the four-way connecting valve close to the first fixed plate, the air gun is connected to the four-way connecting valve through a connecting pipe, and the air blowing position of the air gun is located at the welding point of the two sets of steel plates.

[0013] The utility model has the following beneficial effects: when the large steel plate is placed on the upper end of the first fixing plate, the connecting plate is lowered by the cylinder driving the push rod. When the connecting plate is lowered, the first pressing plate will move to the lower end through the connecting rod, thereby fixing the large steel plate. After the cylinder drives the push rod to descend, the cut surface of the upper end of the push rod will enter the inside of the four-way connecting valve, thereby unblocking the inside of the four-way connecting valve. Since one end of the air inlet pipe is connected to the hot air blower, the air inlet pipe will pass the hot air into the inside of the air gun through the four-way connecting valve. At the same time, the air gun is aimed at the welding part of the steel plate. After the large steel plate is fixed, the air gun will spray hot air to the welding part of the large steel plate. The wind blows away the dust at the welding place of the large steel plate. While removing the dust, the welding place is also preheated, thereby reducing the welding stress and improving the welding quality. After the large steel plate is fixed, the small steel plate is placed on the upper end of the second fixed plate, and the threaded rod is rotated by the motor to push the second pressure plate down to fix the small steel plate. During the gap when the second pressure plate descends, the air gun will also remove the dust and preheat the small steel plate. During welding, the air gun will continue to blow air to blow away the smoke and dust generated during welding. After welding is completed, the cylinder will push the push rod to rise, so that the push rod will block the four-way connecting valve and stop the air gun from blowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall appearance of a welding fixing structure for steel plates of different sizes proposed by the utility model;

[0015] Figure 2 This is a side view of a welding fixing structure for steel plates of different sizes proposed by the present invention;

[0016] Figure 3 This is a side view of a welding fixing structure for steel plates of different sizes proposed by the present invention;

[0017] Figure 4 This is a cross-sectional view of a four-way connecting valve for welding and fixing structures of steel plates of different sizes proposed by the present invention.

[0018] Legend:

[0019] 1. Operating table; 2. First fixed plate; 3. First pressure plate; 4. Connecting rod; 5. Connecting plate; 6. Second fixed plate; 7. Motor; 8. Threaded rod; 9. Second pressure plate; 10. Push rod; 11. Cylinder; 12. Four-way connecting valve; 13. Inlet pipe; 14. Air gun. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Reference Figure 1-4 The present invention provides an embodiment of a welding fixing structure for steel plates of different sizes, comprising an operating table 1, a first fixing plate 2 for fixing a large steel plate is provided at the upper end of the operating table 1, a first pressing plate 3 for pressurizing is provided at the upper end of the first pressing plate 3, a connecting rod 4 for connecting is fixedly connected to the upper end of the first pressing plate 3, a connecting plate 5 for moving the first pressing plate 3 is provided at the upper end of the connecting plate 5, a second fixing plate 6 for fixing a small steel plate is provided on one side of the first fixing plate 2, a connecting plate 5 is fixedly connected to a motor 7 at the upper end of one side of the second fixing plate 6, a threaded rod 8 is provided at the output end of the motor 7, a threaded rod 8 is fixedly connected to the second pressing plate 9 at one end of the threaded rod 8 close to the second fixing plate 6, a push rod 10 for pushing is provided at the lower end of the connecting plate 5, an end of the push rod 10 away from the connecting plate 5 is fixedly connected to a cylinder 11, a four-way connecting valve 12 is provided on the outside of the push rod 10, a side of the four-way connecting valve 12 close to the second fixing plate 6 is connected to an air intake pipe 13, and a side of the four-way connecting valve 12 close to the first fixing plate 2 is connected to an air gun 14.

[0023] In an optional embodiment: a groove is opened at the center of the upper end of the operating table 1, which can allow the welding slag after welding to fall into the interior, making it easy to clean later. The first fixed plate 2 is fixedly connected to the upper end of the operating table 1, which is located on one side of the groove. The first pressing plate 3 is fixedly connected to the connecting plate 5 through the connecting rod 4, and the center of the connecting rod 4 is aligned with the center of the first pressing plate 3. When the first pressing plate 3 descends, the large steel plate is fixed, making it more stable during welding.

[0024] In an optional embodiment: the connecting plate 5 is fixed to the upper end of the operating table 1 by a push rod 10, the second fixing plate 6 is fixedly connected to the opposite side of the first fixing plate 2 in the groove, and both sides of the connecting plate 5 are aligned with the edges of the first fixing plate 2 and the second fixing plate 6. The first pressing plate 3 fixes the steel plate by the descending of the connecting plate 5. When the connecting plate 5 descends, it will drive the two groups of fixing plates to descend synchronously. When the first pressing plate 3 descends, after the large steel plate is fixed, the small steel plate is placed on the upper end of the second fixing plate 6 for fixation.

[0025] In an optional embodiment: the motor 7 is fixedly connected to the upper end of the connecting plate 5, which is aligned with the center of the second fixed plate 6. The output end of the motor 7 is movably connected by a threaded rod 8, and the threaded rod 8 is connected to the center of the second pressure plate 9. The second pressure plate 9 is lowered by the motor 7 rotating the threaded rod 8, and the initial position of the second pressure plate 9 is higher than the first pressure plate 3. After the connecting plate 5 descends and fixes the large steel plate through the first pressure plate 3, because the initial position of the second pressure plate 9 is higher than the first pressure plate 3, there is a certain gap between the second pressure plate 9 and the second fixed plate 6 after the first pressure plate 3 is fixed. At this time, the small steel plate is placed on the upper end of the second fixed plate 6, and then the threaded rod 8 is rotated by the motor 7 to control the descent of the second pressure plate 9 to fix the small steel plate to prevent the steel plate from shifting during welding.

[0026] In an optional embodiment: the output end of the cylinder 11 is movably connected to a push rod 10, and the push rod 10 passes through the operating table 1 and is fixedly connected to the upper end connecting plate 5. The end of the push rod 10 connected to the connecting plate 5 is a section, and the outer diameter of the push rod 10 matches the inner diameter of the four-way connecting valve 12. The cylinder 11 controls the height of 5 by controlling the lifting and lowering of the push rod 10. Because the upper end of the push rod 10 is a section and the push rod 10 matches the inner diameter of the four-way connecting valve 12, the push rod 10 completely blocks the four-way connecting valve 12 in the initial state.

[0027] In an optional embodiment: the four-way connecting valve 12 is located at the upper end of the operating table 1, and its push rod 10 passes through the four-way connecting valve 12, and sealing ports are provided at both ends of the four-way connecting valve 12 passed by the push rod 10, and the air intake pipe 13 is fixedly connected to the four-way connecting valve 12 on the side close to the second fixed plate 6, and the other end of the air intake pipe 13 is connected to the hot air blower. When the large steel plate is placed on the upper end of the first fixed plate 2, the push rod 10 is driven by the cylinder 11 to lower the connecting plate 5. When the connecting plate 5 is lowered, the first pressure plate 3 will move to the lower end through the connecting rod 4, thereby fixing the large steel plate. After the cylinder 11 drives the push rod 10 to descend, the cut surface of the upper end of the push rod 10 will enter the inside of the four-way connecting valve 12, thereby unblocking the inside of the four-way connecting valve 12. Since one end of the air intake pipe 13 is connected to the hot air blower, the air intake pipe 13 will pass the hot air through The four-way connecting valve 12 enters the inside of the air gun 14, and the air gun 14 is aimed at the welding point of the steel plate. After the large steel plate is fixed, the air gun 14 will spray hot air to the welding point of the large steel plate to blow away the dust at the welding point of the large steel plate. While removing dust, the welding point is also preheated, thereby reducing welding stress and improving welding quality. After the large steel plate is fixed, the small steel plate is placed on the upper end of the second fixed plate 6, and the threaded rod 8 is rotated by the motor 7 to push the second pressing plate 9 down to fix the small steel plate. In the gap where the second pressing plate 9 descends, the air gun 14 will also remove dust and preheat the small steel plate. During welding, the air gun 14 will continue to blow air, thereby blowing away the smoke generated during welding. After welding is completed, the cylinder 11 will push the push rod 10 to rise, so that the push rod 10 will block the four-way connecting valve 12, causing the air gun 14 to stop blowing.

[0028] In an optional embodiment: the air gun 14 is fixedly connected to the side of the four-way connecting valve 12 close to the first fixed plate 2, and the air gun 14 is connected to the four-way connecting valve 12 through a connecting pipe. The blowing position of the air gun 14 is located at the welding point of the two groups of steel plates, so that the air gun 14 does not need to be frequently controlled during use, thereby improving the convenience of use.

[0029] Working principle and process: After the staff places the large steel plate on the upper end of the first fixed plate 2, the equipment is started, and the cylinder 11 will control the push rod 10 to descend. When the push rod 10 descends, it will drive the connecting plate 5 to descend. When the connecting plate 5 descends, it will push the first pressure plate 3 through the connecting rod 4 to fix the large steel plate. At the same time, after the push rod 10 descends, the inside of the four-way connecting valve 12 will be unblocked, so that the air intake pipe 13 will pass the four-way connecting valve 12 into the inside of the air gun 14. When the air gun 14 sprays the hot air, the welding point will be dusted and preheated. After the large steel plate is fixed, the staff places the small steel plate on the upper end of the second fixed plate 6, and rotates the threaded rod 8 by the motor 7 to push the second pressure plate 9 down, thereby fixing the small steel plate. During welding, the air gun 14 will blow away the smoke generated during welding. After the welding is completed, the cylinder 11 controls the push rod 10 to rise, so that the push rod 10 blocks the inside of the four-way connecting valve 12.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A welding fixing structure for steel plates of different sizes, comprising an operating table (1), characterized in that: The upper end of the operating table (1) is provided with a first fixing plate (2) for fixing a large steel plate, the upper end of the first fixing plate (2) is provided with a first pressing plate (3) for applying pressure, the upper end of the first pressing plate (3) is fixedly connected with a connecting rod (4) for connection, the upper end of the connecting rod (4) is provided with a connecting plate (5) for moving the first pressing plate (3), a second fixing plate (6) for fixing a small steel plate is provided on one side of the first fixing plate (2), the upper end of the connecting plate (5) located on one side of the second fixing plate (6) is fixedly connected with a motor (7), the output of the motor (7) A threaded rod (8) is provided at the end thereof, and the end of the threaded rod (8) close to the second fixed plate (6) is fixedly connected to the second pressure plate (9), and a push rod (10) for pushing is provided at the lower end of the connecting plate (5), and the end of the push rod (10) away from the connecting plate (5) is fixedly connected to the cylinder (11), and a four-way connecting valve (12) is provided on the outside of the push rod (10), and the side of the four-way connecting valve (12) close to the second fixed plate (6) is connected to the air intake pipe (13), and the side of the four-way connecting valve (12) close to the first fixed plate (2) is connected to the air gun (14).

2. The welding and fixing structure for steel plates of different sizes according to claim 1, characterized in that: A groove is provided at the center of the upper end of the operating table (1); the first fixing plate (2) is fixedly connected to the upper end of the operating table (1) and is located on one side of the groove; the first pressing plate (3) is fixedly connected to the connecting plate (5) via a connecting rod (4), and the center of the connecting rod (4) is aligned with the center of the first pressing plate (3).

3. The welding and fixing structure for steel plates of different sizes according to claim 1, characterized in that: The connecting plate (5) is fixed to the upper end of the operating table (1) through a push rod (10), and the second fixing plate (6) is fixedly connected to the opposite side of the first fixing plate (2) in the groove. Both sides of the connecting plate (5) are aligned with the edges of the first fixing plate (2) and the second fixing plate (6), and the first pressing plate (3) fixes the steel plate by lowering the connecting plate (5).

4. The welding and fixing structure for steel plates of different sizes according to claim 1, characterized in that: The motor (7) is fixedly connected to the upper end of the connecting plate (5) and is aligned with the center of the second fixed plate (6). The output end of the motor (7) is movably connected by a threaded rod (8). The threaded rod (8) is connected to the center of the second pressing plate (9). The second pressing plate (9) is lowered by rotating the threaded rod (8) through the motor (7), and the initial position of the second pressing plate (9) is higher than the first pressing plate (3).

5. The welding and fixing structure for steel plates of different sizes according to claim 1, characterized in that: The output end of the cylinder (11) is movably connected to a push rod (10), which passes through the operating table (1) and is fixedly connected to the upper end connecting plate (5). The end of the push rod (10) connected to the connecting plate (5) is a section, and the outer diameter of the push rod (10) matches the inner diameter of the four-way connecting valve (12).

6. The welding and fixing structure for steel plates of different sizes according to claim 1, characterized in that: The four-way connecting valve (12) is located at the upper end of the operating table (1), and its push rod (10) passes through the four-way connecting valve (12), and sealing ports are provided at both ends of the four-way connecting valve (12) passed through by the push rod (10). The air inlet pipe (13) is fixedly connected to the side of the four-way connecting valve (12) close to the second fixed plate (6), and the other end of the air inlet pipe (13) is connected to the hot air blower.

7. The welding and fixing structure for steel plates of different sizes according to claim 1, characterized in that: The air gun (14) is fixedly connected to a side of the four-way connecting valve (12) close to the first fixed plate (2), and the air gun (14) is connected to the four-way connecting valve (12) through a connecting pipe. The blowing position of the air gun (14) is located at the welding point of the two sets of steel plates.

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