Intelligent welding device for high-strength steel structure

Abstract

The utility model discloses a kind of high-strength steel structure intelligent welding device, including welding support block, welding table, welding support, carrying mechanical arm, welding mechanical arm, welder and three feeding conveyors;The utility model relates to the technical field of high-strength steel production, adopts full-closed dynamic sealing system, is combined with lifting sealing convex block and back expansion air bag, effectively insulates external environmental interference, and adjusts airflow direction by angle plate, creates dustless oxygen-free welding environment;Three-dimensional accurate temperature control technology integrated refrigeration sheet and coiled electric heater, cooperate with magnetic drive stirring mixing system, realize the quick response and uniform distribution of welding area temperature, ensure metal molten pool fluidity and crystallization quality.

Description

Technical Field

[0001] This utility model relates to the field of high-strength steel production technology, specifically to an intelligent welding device for high-strength steel structures. Background Technology

[0002] In the field of steel structure welding, traditional equipment suffers from three core problems: First, the welding environment control is rudimentary; open or semi-closed operations are easily affected by external airflow, temperature fluctuations, and impurity intrusion, leading to defects such as weld oxidation and porosity. Second, temperature control methods are limited, relying solely on local heating devices, making it difficult to achieve precise control and uniform distribution of temperature in the welding area, directly affecting the fluidity and crystallization quality of the molten metal pool. Third, automation is insufficient; material feeding, positioning, and environmental adjustment rely on manual intervention, resulting in low efficiency and poor stability of process parameters. Specifically, existing sealing devices mostly use fixed baffles or simple covers, unable to dynamically adjust the sealing space and limiting sealing performance. Temperature control components lack systematic design, leading to uneven microstructure in the heat-affected zone. Environmental gas regulation relies on passive diffusion or inefficient stirring, resulting in uneven mixing of inert and protective gases. Fourth, automated systems only handle material handling; key steps still require manual operation. Therefore, this project was developed to address these issues. Utility Model Content

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-strength steel structure intelligent welding device, comprising a welding support block, a welding table, a welding bracket, a transport robotic arm, a welding robotic arm, a welder, and three feeding conveyors; the three feeding conveyors are connected in a T-shape to the welding support block, the welding robotic arm and the transport robotic arm are mounted on the welding bracket, the welder is mounted on the welding robotic arm, the welding table is mounted on the welding support block via a telescopic adjuster, the welding bracket is mounted on the welding table, and a sealer is installed on the welding bracket;

[0004] The sealer includes three sidewall sealing plates, which are mounted on the welding bracket and the welding support block. The welding robotic arm is mounted on a telescopic welding bracket, and the welder is mounted on the welding robotic arm. A sealing concave sleeve is mounted on the welding bracket. A lifting sealing convex block is mounted inside the sealing concave sleeve. A pair of lifting threaded tubes are mounted on the sealing concave sleeve, and lifting threaded rods are mounted inside the lifting threaded tubes. The pair of lifting threaded rods are connected to the lifting sealing convex block. A lifting drive motor is mounted on the sealing concave sleeve, and lifting gear sets are mounted on the lifting drive motor and the pair of lifting threaded tubes. A spiral-shaped inflatable airbag is mounted on the welding table, and a spiral-shaped inflatable airbag is equipped with... An expansion pump is included. Multiple cooling plates and multiple coiled electric heaters are installed on the welded bracket and the three sidewall sealing plates. A mixer is installed on the three sidewall sealing plates, comprising multiple stirring discs. Multiple stirring cylindrical grooves are formed on the three sidewall sealing plates. Stirring discs are installed inside the stirring cylindrical grooves, and the stirring discs are inserted into the inner side of the stirring cylindrical grooves via bearings. Multiple metal transmission rods are installed on the stirring cylindrical grooves. Multiple transmission shafts and multiple sidewall drive motors are installed on the sidewall sealing plates. Transmission gear sets are installed on the multiple transmission shafts and sidewall drive motors. Transmission magnets are installed on the transmission gear sets and the multiple stirring discs. Stirring blades are installed on the stirring discs.

[0005] Preferably, the welding support block has multiple horizontal moving slots, the telescopic adjuster includes two pairs of tension threaded tubes, the two pairs of tension threaded tubes are respectively inserted into the side wall sealing plate through bearings, a tension drive is installed on the side wall sealing plate, a tension gear set is installed on the tension drive and the two pairs of tension threaded tubes, a tension threaded rod is installed on the inner side of the two pairs of tension threaded tubes, the two pairs of tension threaded rods are connected to the welding table, and multiple support moving wheels are installed at the bottom end of the welding table.

[0006] Preferably, a plurality of concave angle blocks are installed on the side wall sealing plate, an angle shaft is installed on the concave angle block, an angle plate is installed on the angle shaft, a pair of arc grooves are formed on the concave angle block, an arc block is installed on the inner side of the pair of arc grooves, the pair of arc blocks are connected to the angle plate, an angle electromagnet is installed on the inner side of the arc groove, an angle magnet is installed on the arc block, and a pair of angle arc springs are installed on the inner side of the arc groove.

[0007] Preferably, the welding bracket is equipped with sensors, including a temperature sensor, a pressure sensor, a position sensor, and a gas concentration sensor.

[0008] Preferably, an intelligent control unit is installed on the welding bracket, and the intelligent control unit is electrically connected to the lifting drive, the stretching drive, the side wall drive, the expansion pump, the cooling chip, the coiled electric heater, the angle electromagnet, and multiple sensors.

[0009] Preferably, each of the three feeding conveyors includes a conveyor belt, a drive roller, a driven roller, and a conveyor drive motor.

[0010] This invention provides an intelligent welding device for high-strength steel structures. It offers the following advantages: The device employs a fully enclosed dynamic sealing system, combined with a lifting sealing convex block and a spiral expansion airbag, effectively isolating external environmental interference. An angle plate adjusts the airflow direction, creating a dust-free and oxygen-free welding environment. Three-dimensional precision temperature control technology integrates a cooling element and a coiled electric heater, coupled with a magnetically driven stirring and mixing system, achieving rapid temperature response and uniform distribution in the welding area, ensuring the fluidity and crystallization quality of the molten metal pool. Full-process automated control, through intelligent unit linkage sensors and actuators, completes fully automated operations for material feeding, positioning, sealing, temperature control, and quality monitoring, significantly reducing manual intervention. It also features an adaptive safety protection mechanism that monitors pressure, temperature, and gas concentration in real time, automatically adjusting process parameters and activating protective measures to ensure a safe and reliable welding process. Furthermore, its modular design adapts to different workpiece sizes, and reserved expansion interfaces facilitate functional upgrades. This device comprehensively solves the core problems of poor environmental stability, inaccurate temperature control, and low automation in traditional welding, providing a highly efficient, high-quality, and highly stable intelligent welding solution for high-end steel structure manufacturing. Attached Figure Description

[0011] Figure 1 This is a front sectional view of the intelligent welding device for high-strength steel structures described in this utility model.

[0012] Figure 2 This is a side sectional view of the intelligent welding device for high-strength steel structures described in this utility model.

[0013] Figure 3 for Figure 1 A magnified view of the letter "A" in the image.

[0014] In the diagram: 1. Welding support block; 2. Welding table; 3. Welding bracket; 4. Feeder conveyor; 5. Side wall sealing plate; 6. Sealing concave sleeve block; 7. Lifting sealing convex block; 8. Lifting threaded pipe; 9. Lifting threaded rod; 10. Lifting gear set; 11. Recurved expansion airbag; 12. Expansion air pump; 13. Cooling plate; 14. Coiled electric heater; 15. Stirring disc; 16. Stirring cylindrical groove; 17. Metal conduction rod; 18. Conduction shaft; 19. Conduction gear set; 20. Conduction magnet. Detailed Implementation

[0015] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further. Example

[0017] Please see Figure 1-3 The background technology of this high-strength steel structure intelligent welding device can be deduced from the following current technological status: In the field of steel structure welding, traditional welding equipment generally suffers from three major technical bottlenecks: First, the welding environment control is crude, with most adopting open or semi-closed operations. External air flow, temperature fluctuations, and impurity intrusion can easily lead to defects such as weld oxidation and porosity, making it difficult to meet the stringent requirements of high-strength steel for welding quality; Second, temperature control methods are limited, relying solely on simple heating devices, which cannot achieve precise control and uniform distribution of temperature in the welding area, directly affecting the fluidity and crystallization quality of the molten metal pool; Third, the degree of automation is insufficient, with manual intervention required for material feeding, positioning, and environmental adjustment, which is not only inefficient but also makes it difficult to ensure the stability of welding process parameters.

[0018] Therefore, this application protects a high-strength steel structure intelligent welding device. Components are transported via a pair of feeding conveyors 4. A robotic arm on the welding bracket 3 moves the components onto a tooling (replaceable) on the welding table 2. A telescopic adjuster moves the welding table 2 horizontally along the welding support block 1. A lifting drive on the sealing concave sleeve block 6 drives a lifting gear set 10 at its drive end. The lifting gear set 10 drives a lifting threaded tube 8, which in turn drives a lifting threaded rod 9 on its inner side, causing the lifting threaded rod 9 to move stably up and down along the inner side of the lifting threaded tube 8. The lifting threaded rod 9 then drives a lifting sealing convex block 7 on its upper side, causing the lifting sealing convex block 7 to move stably up and down along the sealing concave sleeve block 6. An expansion pump 12 inflates a loop-shaped expansion airbag 11, which inflates the lifting sealing convex block 7. The sealing space is sealed by compression with three side wall sealing plates 5. The temperature of the sealed space is controlled by the cooling plate 13 and the coiled electric heater 14. The stirring drive is driven by the stirring drive motor, which drives the transmission gear set 19 on the drive end of the stirring drive motor. The transmission gear set 19 drives the transmission magnet 20 on it to rotate. The magnetism is transmitted to the stirring disc 15 through the metal transmission rod 17, so that the stirring disc 15 rotates stably and horizontally along the inner side of the stirring cylindrical groove 16. The stirring disc 15 drives the stirring blades on it. The rotation of multiple stirring blades stirs and mixes the sealed space, thereby adjusting the welding environment. The angle electromagnet on the concave angle block is energized to magnetically repel the angle magnet. The angle magnet drives the arc block on it, so that the arc block rotates along the inner side of the arc groove. The arc block drives the angle plate on it, so that the angle plate rotates along the angle axis, thereby changing the angle of the airflow.

[0019] In summary, after the equipment is started, three T-shaped material conveyors 4 transport the steel structure components to the designated positions. The handling robotic arm on the welding bracket 3 grabs the components and precisely places them on the replaceable tooling of the welding table 2. Subsequently, the telescopic adjuster adjusts the position of the welding table 2 through the transmission system of two pairs of tension threaded tubes and threaded rods (driven by the tension drive motor to the tension gear set), so that it moves stably along the horizontal moving groove of the welding support block 1 to the welding position. The support moving wheels at the bottom of the welding table 2 ensure the smoothness of the movement process. Before welding, the sealing system is activated: the lifting drive motor on the sealing concave sleeve block 6 drives a pair of lifting threaded tubes 8 to rotate through the lifting gear set 10, which drives the lifting threaded rod 9 and the connected lifting sealing convex block 7 to descend vertically, forming a preliminary sealing structure with the U-shaped expansion airbag 11 on the welding table 2. At this time, the expansion pump 12 inflates the U-shaped expansion airbag 11. After the airbag expands, it squeezes the lifting and sealing convex block 7 and the three side wall sealing plates 5 to form a completely closed welding environment space. In the sealed space, the cooling plate 13 and the coiled electric heater 14 work together to achieve precise temperature control of the welding area. At the same time, the stirring and mixing system drives the transmission gear set 19 through the side wall drive motor, which makes the transmission magnet 20 rotate and transmits the magnetism to the stirring disc 15 through the metal transmission rod 17. This drives multiple stirring discs 15 to rotate horizontally along the bearing in the stirring cylindrical groove 16, which drives the stirring blades to force the gas in the space to convect and mix, ensuring uniform temperature distribution. In order to further optimize the welding environment, the angle adjustment mechanism generates magnetic repulsion force by energizing the angle electromagnet in the concave angle block, which pushes the arc block with the angle magnet installed to move along the arc groove, causing the angle plate to rotate around the angle axis, thereby adjusting the flow angle of the airflow in the sealed space. This, together with the stirring system, achieves three-dimensional airflow control, and ultimately provides a stable working environment with controllable temperature and uniform gas for high-strength steel structure welding, ensuring welding quality.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength steel structure intelligent welding device, characterized in that, The assembly includes a welding support block (1), a welding table (2), a welding bracket (3), a handling robotic arm, a welding robotic arm, a welding device, and three loading conveyors (4); the three loading conveyors (4) are connected in a T-shape to the welding support block (1), the welding robotic arm and the handling robotic arm are mounted on the welding bracket (3), the welding device is mounted on the welding robotic arm, the welding table (2) is mounted on the welding support block (1) via a telescopic adjuster, the welding bracket (3) is mounted on the welding table, and a sealer is mounted on the welding bracket (3); The sealer includes three sidewall sealing plates (5), which are mounted on the welding bracket (3) and the welding support block (1). The welding robot arm is mounted on the telescopic welding bracket (3), and the welder is mounted on the welding robot arm. A sealing concave sleeve block (6) is mounted on the welding bracket (3). A lifting sealing convex block (7) is mounted on the inner side of the sealing concave sleeve block. A pair of lifting threaded pipes (8) are mounted on the sealing concave sleeve block (6). A lifting threaded rod (9) is mounted on the inner side of the lifting threaded pipe (8). The pair of lifting threaded rods (9) are connected to the lifting sealing convex block (7). A lifting drive motor is mounted on the sealing concave sleeve block (6). A lifting gear set (10) is mounted on the lifting drive motor and the pair of lifting threaded pipes (8). A spiral expansion airbag (11) is mounted on the welding table (2). An expansion air pump (12) is mounted on the spiral expansion airbag (11). Multiple cooling plates (13) and multiple coiled electric heaters (14) are installed on the welding bracket (3) and the three side wall sealing plates (5). A stirring mixer is installed on the three side wall sealing plates (5). The stirring mixer includes multiple stirring discs (15). Multiple stirring cylindrical grooves (16) are opened on the three side wall sealing plates (5). The stirring discs (15) are installed on the inner side of the stirring cylindrical grooves (16). The stirring discs (15) are inserted into the inner side of the stirring cylindrical grooves (16) through bearings. Multiple metal transmission rods (17) are installed on the stirring cylindrical grooves (16). Multiple transmission shafts (18) and multiple side wall drives are installed on the side wall sealing plates (5). Transmission gear sets (19) are installed on the multiple transmission shafts (18) and the side wall drives. Transmission magnets (20) are installed on the transmission gear sets (19) and the multiple stirring discs (15). Stirring blades are installed on the stirring discs (15).

2. The intelligent welding device for high-strength steel structures according to claim 1, characterized in that, The welding support block (1) is provided with multiple horizontal moving slots. The telescopic adjuster includes two pairs of tension threaded tubes. The two pairs of tension threaded tubes are respectively inserted into the side wall sealing plate (5) through bearings. The side wall sealing plate (5) is equipped with a tension drive machine. The tension drive machine and the two pairs of tension threaded tubes are equipped with tension gear sets. The inner sides of the two pairs of tension threaded tubes are respectively equipped with tension threaded rods. The two pairs of tension threaded rods are connected to the welding table (2). The bottom end of the welding table (2) is equipped with multiple support moving wheels.

3. The intelligent welding device for high-strength steel structures according to claim 2, characterized in that, Multiple concave angle blocks are installed on the side wall sealing plate (5). An angle shaft is installed on the concave angle block. An angle plate is installed on the angle shaft. A pair of arc grooves are opened on the concave angle block. Arc blocks are installed on the inner side of the pair of arc grooves respectively. The pair of arc blocks are connected to the angle plate. An angle electromagnet is installed on the inner side of the arc groove. An angle magnet is installed on the arc block. A pair of angle arc springs are installed on the inner side of the arc groove.

4. The intelligent welding device for high-strength steel structures according to claim 3, characterized in that, Sensors are installed on the welding bracket (3), including a temperature sensor, a pressure sensor, a position sensor and a gas concentration sensor.

5. The intelligent welding device for high-strength steel structures according to claim 4, characterized in that, The welding bracket (3) is equipped with an intelligent control unit, which is electrically connected to the lifting drive, the stretching drive, the side wall drive, the expansion pump (12), the cooling plate (13), the coiled electric heater (14), the angle electromagnet, and multiple sensors.

6. The intelligent welding device for high-strength steel structures according to claim 5, characterized in that, The three feeding conveyors (4) all include a conveyor belt, a drive roller, a driven roller and a conveyor drive motor.

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