Welding equipment for machining steel fireproof door

Abstract

The utility model discloses welding equipment for processing a steel fireproof door, which comprises a welding table, two side walls of the welding table are fixedly connected with two groups of side plates, sliding blocks are connected between the two groups of side plates through sliding rods, the two groups of sliding blocks are jointly connected with a moving seat, a welding gun head is mounted at the lower end of the sliding plate, and a welding gun is mounted at the lower end of the welding gun head. Two sets of connecting rods are slidably connected to the outer wall of the sliding plate, the ends of the two sets of connecting rods are jointly connected with a sealing cover, the sealing cover is arranged on the outer wall of the welding gun head in a sleeving mode, a certain small gap exists between the sealing cover and the welding gun head in a contact mode, and elastic mechanisms for driving the sealing cover to be tightly attached to the table top of the welding table are installed on the outer walls of the connecting rods. An air pipe is installed on the outer wall of the sealing cover. By means of the sealing cover, the spring and other components and in combination with the external air pump, a stable negative pressure environment is formed in the sealing cover, harmful gas and smoke can be effectively sealed and rapidly pumped away in the welding process, the safety of the working environment is improved, and meanwhile the risk that operators make contact with the harmful gas is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fire door welding technology, and in particular to a welding equipment for processing steel fire doors. Background Technology

[0002] Steel fire doors refer to doors with a specified fire resistance performance, consisting of a steel frame, door leaf skeleton, and door leaf panel. If the door leaf is filled with material, it is filled with fireproof and heat-insulating material that is non-toxic and harmless to the human body, and equipped with fireproof hardware.

[0003] In existing technologies, steel fire doors are mainly welded using a welding torch, with horizontal and vertical moving devices used to adjust the position of the torch. This allows for flexible adjustment according to different welding requirements. However, during the welding process, the steel melts at high temperatures, releasing harmful substances such as carbon monoxide, nitrogen oxides, and volatile organic compounds. These toxic gases and fumes not only pose a serious threat to the health of operators, but long-term exposure can also lead to respiratory diseases, lung damage, and other chronic health problems. Therefore, it is necessary to propose a welding equipment for processing steel fire doors to address these issues. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, a stable negative pressure environment is created inside the sealing cover by using components such as a sealing cover and springs, combined with an external air pump. This effectively seals off and quickly removes harmful gases and fumes during the welding process, preventing toxic gases and fumes from posing a serious threat to the health of operators.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: A welding table is included, with two sets of side plates fixedly connected to both side walls of the welding table. A slider is connected to each of the two sets of side plates via a sliding rod. The two sets of sliders are connected to a movable seat. The movable seat is connected to a sliding plate via a telescopic mechanism. A welding torch head is installed at the lower end of the sliding plate. Two sets of connecting rods are slidably connected to the outer wall of the sliding plate. A sealing cover is connected to the ends of the two sets of connecting rods. The sealing cover is fitted onto the outer wall of the welding torch head, and there is a certain small gap between the sealing cover and the welding torch head. An elastic mechanism is installed on the outer wall of the connecting rods to drive the sealing cover to fit tightly against the welding table surface. An air pipe is installed on the outer wall of the sealing cover.

[0008] Preferably, the elastic mechanism includes a limiting block fixedly connected to the end of the connecting rod, a spring sleeved on the outer wall of the connecting rod, one end of the spring fixedly connected to the end face of the slide plate, and the other end of the spring fixedly connected to the lower end face of the limiting block.

[0009] Preferably, the telescopic mechanism includes an electric telescopic rod slidably connected to the side wall of the movable seat, and the telescopic end of the electric telescopic rod is fixedly connected to the slide plate.

[0010] Preferably, the radius of the limiting block is larger than the radius of the connecting rod, and the outer wall of the connecting rod is L-shaped.

[0011] Preferably, a threaded rod is rotatably connected between each pair of side plates, and the two sets of sliders are respectively threaded onto the threaded sections of the two sets of threaded rods.

[0012] Preferably, each of the two sets of side plates is fixedly connected to a servo motor, and the end of the output shaft of the servo motor is fixedly connected to the threaded rod coaxially.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a welding equipment for processing steel fire doors, which has the following beneficial effects:

[0015] 1. This utility model, through the sealing cover and spring and other components, combined with an external air pump, creates a stable negative pressure environment inside the sealing cover, which can effectively seal and quickly remove harmful gases and fumes during the welding process, improving the safety of the working environment while reducing the risk of operators being exposed to harmful gases.

[0016] 2. This utility model uses a servo motor to drive the threaded rod to rotate, thereby driving the slider and the moving seat to achieve the lateral positioning of the welding torch head. With the help of the electric telescopic rod sliding on the outer wall of the sliding seat, the longitudinal positioning of the welding torch head is achieved. The precise control of the vertical movement distance of the welding torch head and the welding pressure by the electric telescopic rod ensures the consistency of the welding depth. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a welding equipment for processing steel fire doors proposed in this utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of components such as the sliding plate, sealing cover, and welding torch head.

[0019] Figure 3 for Figure 2 Structural diagram.

[0020] In the diagram: 1. Welding table; 2. Side plate; 3. Threaded rod; 4. Slider; 5. Moving seat; 6. Servo motor; 7. Slide plate; 8. Sealing cover; 9. Welding torch head; 10. Connecting rod; 11. Air pipe; 12. Spring; 13. Limiting block; 14. Electric telescopic rod. Detailed Implementation

[0021] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0022] This utility model provides a technical solution:

[0023] Reference Figure 1-3 A welding device for processing steel fire doors includes a welding table 1. Two sets of side plates 2 are fixedly connected to the side walls of both sides of the welding table 1. Sliding rods connect the two sets of side plates 2 to the sliders 4. The two sets of sliders 4 are connected to a moving seat 5. The moving seat 5 is connected to a sliding plate 7 through a telescopic mechanism. A welding gun head 9 is installed at the lower end of the sliding plate 7. Two sets of connecting rods 10 are slidably connected to the outer wall of the sliding plate 7. The ends of the two sets of connecting rods 10 are connected to a sealing cover 8. The sealing cover 8 is fitted on the outer wall of the welding gun head 9 and there is a certain small gap between it and the welding gun head 9. An elastic mechanism is installed on the outer wall of the connecting rods 10 to drive the sealing cover 8 to fit tightly against the surface of the welding table 1. An air pipe 11 is installed on the outer wall of the sealing cover 8.

[0024] Specifically, the sealing cover 8 has a through hole at its center, where the welding torch head 9 is located. There is a gap between the welding torch head 9 and the through hole at the center of the sealing cover 8, so that the position of the sealing cover 8 relative to the welding torch head 9 is movable. The other end of the gas pipe 11 is connected to an external air pump to extract the gas generated during welding. The gas flow rate discharged through the tiny gap at the through hole is small, and with the help of the air pump, the sealing cover 8 is in a negative pressure state, which can be ignored.

[0025] The elastic mechanism includes a limiting block 13 fixedly connected to the end of the connecting rod 10, and a spring 12 sleeved on the outer wall of the connecting rod 10. One end of the spring 12 is fixedly connected to the end face of the slide plate 7, and the other end of the spring 12 is fixedly connected to the lower end face of the limiting block 13.

[0026] Specifically, spring 12 provides elastic pressure to keep the sealing cover 8 in close contact with the surface of welding station 1, ensuring that harmful gases do not leak out.

[0027] The telescopic mechanism includes an electric telescopic rod 14 that is slidably connected to the side wall of the movable seat 5, and the telescopic end of the electric telescopic rod 14 is fixedly connected to the slide plate 7.

[0028] Specifically, the electric telescopic rod 14 can precisely control the vertical movement distance and welding pressure of the welding torch head 9, ensuring consistent welding depth.

[0029] The radius of the limiting block 13 is larger than the radius of the connecting rod 10. The outer wall of the connecting rod 10 is L-shaped. A threaded rod 3 is rotatably connected between each pair of side plates 2. The two sets of sliders 4 are threadedly connected to the threaded sections of the two sets of threaded rods 3. A servo motor 6 is fixedly connected to the side wall of each pair of side plates 2. The end of the output shaft of the servo motor 6 is coaxially fixedly connected to the threaded rod 3.

[0030] Specifically, the threaded rod 3 and the movable seat 5 are designed to adjust the horizontal and vertical positions of the welding torch head 9.

[0031] In practical use, the working principle of this utility model is as follows:

[0032] In this utility model, when the device is used, the operator first places the steel fire door workpiece to be welded stably on the surface of the welding table 1, starts the servo motor 6, drives the two sets of threaded rods 3 to rotate synchronously, drives the two sets of sliders 4 to move laterally, thereby adjusting the initial position of the moving seat 5 and the welding gun head 9. With the moving seat 5 driving the electric telescopic rod 14 to slide, the longitudinal position of the welding gun head 9 can be adjusted so that it is accurately aligned with the welding starting point.

[0033] During welding, the electric telescopic rod 14 is activated and extends downwards, pushing the sliding plate 7 and welding torch head 9 vertically downwards onto the surface of the steel fire door. At this time, the sealing cover 8, under the elastic pressure of the spring 12, remains tightly pressed against the surface of the welding table 1, completely sealing the welding area. Simultaneously, the external air pump connected to the air pipe 11 is activated, creating a stable negative pressure environment inside the sealing cover 8. Harmful gases and fumes generated during welding are quickly extracted through the air pipe 11 and transported to an external purification device. Due to the extremely small gap between the sealing cover 8 and the welding torch head 9, only a small amount of air inside the sealing cover 8 is discharged, ensuring a harmful gas extraction efficiency of over 95%.

[0034] After welding is completed, the electric telescopic rod 14 retracts, lifting the welding torch head 9 away from the workpiece surface. At this time, the spring 12 pushes the sealing cover 8 back to its initial height, ready to enter the next welding cycle. The air pump continues to run for several seconds to completely remove residual gas.

[0035] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A welding device for processing steel fire doors, comprising a welding table (1), characterized in that, The welding table (1) has two sets of side plates (2) fixedly connected to both side walls. The two sets of side plates (2) are connected to a slider (4) by a sliding rod. The two sets of sliders (4) are connected to a moving seat (5). The moving seat (5) is connected to a sliding plate (7) through a telescopic mechanism. The lower end of the sliding plate (7) is equipped with a welding gun head (9). The outer wall of the sliding plate (7) is slidably connected to two sets of connecting rods (10). The ends of the two sets of connecting rods (10) are connected to a sealing cover (8). The sealing cover (8) is fitted on the outer wall of the welding gun head (9) and there is a certain small gap between it and the welding gun head (9). The outer wall of the connecting rod (10) is equipped with an elastic mechanism that drives the sealing cover (8) to fit tightly against the surface of the welding table (1). The outer wall of the sealing cover (8) is equipped with an air pipe (11).

2. The welding equipment for processing steel fire doors according to claim 1, characterized in that, The elastic mechanism includes a limiting block (13) fixedly connected to the end of the connecting rod (10). A spring (12) is sleeved on the outer wall of the connecting rod (10). One end of the spring (12) is fixedly connected to the end face of the slide plate (7), and the other end of the spring (12) is fixedly connected to the lower end face of the limiting block (13).

3. The welding equipment for processing steel fire doors according to claim 1, characterized in that, The telescopic mechanism includes an electric telescopic rod (14) that is slidably connected to the side wall of the movable seat (5), and the telescopic end of the electric telescopic rod (14) is fixedly connected to the slide plate (7).

4. The welding equipment for processing steel fire doors according to claim 3, characterized in that, The radius of the limiting block (13) is larger than the radius of the connecting rod (10), and the outer wall of the connecting rod (10) is L-shaped.

5. The welding equipment for processing steel fire doors according to claim 4, characterized in that, Each pair of side plates (2) is rotatably connected to a threaded rod (3), and the two sets of sliders (4) are respectively threadedly connected to the threaded sections of the two sets of threaded rods (3).

6. The welding equipment for processing steel fire doors according to claim 5, characterized in that, Two of the side plates (2) are fixedly connected to servo motors (6), and the output shaft end of the servo motor (6) is fixedly connected to the threaded rod (3) on the same axis.

Images