Welding device for furnace pipe production

Abstract

The utility model relates to the technical field of furnace pipe production, in particular to a welding device for furnace pipe production, which comprises a welding table and a welding mechanism arranged on the welding table, and is characterized in that the welding mechanism comprises a multi-degree-of-freedom clamping assembly arranged on the welding table and a welding assembly arranged on the welding table and matched with the multi-degree-of-freedom clamping assembly for use; the multi-degree-of-freedom clamping assembly comprises a sliding block arranged in the length direction of the welding table in a sliding mode, a first U-shaped frame rotationally arranged on the upper portion of the sliding block, a door-shaped frame arranged at the bottom of the sliding block and located outside the welding table, and a second U-shaped frame rotationally arranged on the upper portion of the door-shaped frame. A first clamp and a second clamp are respectively arranged on the first U-shaped frame and the second U-shaped frame; through sliding of the sliding block, rotation of the first U-shaped frame and the second U-shaped frame and adjustment of the clamp, a furnace pipe, an end socket, a flange and the like are clamped, moved and rotated, so that the welding position is adjusted, the welding precision is improved, the uniformity and consistency of welding seams are ensured, and welding defects caused by the clamping problem are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace liner production, in particular to a welding device for furnace liner production. Background Art

[0002] In the furnace production process, welding is a crucial link, and its quality directly affects the performance and safety of the furnace. Traditional furnace welding devices have many defects, which seriously restrict the improvement of production efficiency and welding quality. The movement freedom of traditional welding devices is limited, and the position adjustment of the welding gun is often not convenient and accurate enough. When welding the longitudinal seam, it is impossible to quickly and accurately maintain the optimal welding angle and distance between the welding gun and the longitudinal seam of the furnace, which may lead to insufficient welding and uneven weld width during the welding process. When welding the circumferential seam, it is difficult to ensure the uniformity and consistency of the circumferential seam welding due to the inability to flexibly adjust the position of the welding gun around the circumference of the furnace, which reduces the welding quality and increases the scrap rate. At the same time, it also limits the improvement of production efficiency and makes it difficult to meet the needs of modern industry for high-quality and high-efficiency production of furnaces. Utility Model Content

[0003] The purpose of the utility model is to provide a welding device for furnace production, which is used to solve the problems existing in the existing methods mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding device for furnace production, comprising a welding table and a welding mechanism arranged on the welding table, the welding mechanism comprising a multi-degree-of-freedom clamping assembly arranged on the welding table and a welding assembly arranged on the welding table and used in conjunction with the multi-degree-of-freedom clamping assembly; the multi-degree-of-freedom clamping assembly comprises a slider slidably arranged in the length direction of the welding table, a first U-shaped frame rotatably arranged on the upper part of the slider, a portal frame arranged at the bottom of the slider and located outside the welding table, and a second U-shaped frame rotatably arranged on the upper part of the portal frame; the first U-shaped frame and the second U-shaped frame are arranged in opposite directions of their openings and the first U-shaped frame and the second U-shaped frame are respectively provided with a first clamp and a second clamp.

[0005] Furthermore, the welding assembly includes a guide plate vertically arranged on one side of the welding table, a connecting block vertically slidably arranged on the guide plate, and a welding gun arranged on one side of the connecting block.

[0006] Furthermore, an electric push rod is provided at the bottom of the welding table, and an output shaft of the electric push rod is connected to the bottom of the portal frame.

[0007] Furthermore, a first motor is vertically arranged on the portal frame, and an output shaft of the first motor passes through a sliding block and is connected to the first U-shaped frame.

[0008] Furthermore, a second motor is vertically provided at the bottom of the welding table, and the output shaft of the second motor passes through the bottom of the welding table and is connected to a first screw rod, and the other end of the connecting block extends to the outside of the guide plate and is threadedly matched with the first screw rod.

[0009] Furthermore, the first clamp and the second clamp each include two second screw rods, two chucks, and two limit rods; the two second screw rods contained in the first clamp are threadedly connected to the vertical walls on both sides of the first U-shaped frame, the two chucks are respectively arranged on the opposite ends of the two second screw rods, and the two limit rods are respectively arranged on the two chucks and slide with the vertical walls on both sides of the first U-shaped frame; the two second screw rods contained in the second clamp are threadedly connected to the vertical walls on both sides of the second U-shaped frame, the two chucks are respectively arranged on the opposite ends of the two second screw rods, and the two limit rods are respectively arranged on the two chucks and slide with the vertical walls on both sides of the second U-shaped frame.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. Improved welding accuracy; through the sliding of the slider, the rotation of the first U-shaped frame and the second U-shaped frame, and the adjustment of the fixture, the furnace, head, flange and other components with different diameters and lengths can be clamped, moved and rotated to adjust the welding position to improve the welding accuracy, ensure the uniformity and consistency of the weld, and reduce welding defects caused by clamping problems.

[0012] 2. The welding gun position adjustment is convenient and accurate; the design of the welding assembly enables the welding gun to be adjusted during longitudinal and circumferential seam welding. During longitudinal seam welding, the welding gun is driven up and down by the second motor to drive the lead screw, so that the welding gun can be adjusted to an angle and distance that matches the longitudinal seam of the furnace, ensuring a stable and efficient welding process and avoiding situations such as insufficient welding and uneven weld widths. During circumferential seam welding, the welding gun position can be adjusted to align with the circumferential seam, combined with the first motor to drive the furnace to rotate, to ensure the quality of circumferential seam welding and reduce the scrap rate.

[0013] 3. Improved production efficiency: The multi-section electric push rod drives the clamping assembly to move, the first motor controls the rotation of the first U-shaped frame, and the second motor drives the welding gun to move, reducing the time spent on traditional welding devices due to inconvenient adjustments, effectively improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall structure diagram of the utility model;

[0015] Figure 2 This is a rear view of the utility model;

[0016] Figure 3 It is a top view of the utility model;

[0017] Figure 4This is a partial structural diagram of the utility model.

[0018] In the figure:

[0019] 1. Welding table; 2. Multi-degree-of-freedom clamping assembly; 3. Welding assembly; 4. Slider; 5. First U-shaped frame; 6. Door frame; 7. Second U-shaped frame; 8. First clamp; 9. Guide plate; 10. Connecting block; 11. Welding gun; 12. Electric push rod; 13. First motor; 14. Second motor; 15. First screw rod; 16. Second clamp; 17. Second screw rod; 18. Chuck; 19. Limit rod. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4 A welding device for furnace production includes a welding table 1 and a welding mechanism arranged on the welding table 1; the welding mechanism consists of a multi-degree-of-freedom clamping component 2 and a welding component 3, and the two work together.

[0021] The multi-degree-of-freedom clamping assembly 2 includes a slider 4, a first U-shaped frame 5, a door frame 6, and a second U-shaped frame 7. The slider 4 is slidably arranged in the length direction of the welding table 1, and a first motor 13 is vertically installed on the door frame 6 whose bottom is located outside the welding table 1. The first motor 13 is a stepping motor, and its output shaft passes through the slider 4 and is connected to the first U-shaped frame 5, which can drive the first U-shaped frame 5 to rotate, and the first U-shaped frame 5 is rotatably installed on the upper part of the slider 4, and a second U-shaped frame 7 is rotatably arranged on the bottom side of the upper part of the door frame 6, and the opening directions of the first U-shaped frame 5 and the second U-shaped frame 7 are opposite, and the first U-shaped frame 5 and the second U-shaped frame 7 are respectively provided with a first clamp 8 and a second clamp 16; the two have the same structure, and both It includes two second screw rods 17, two chucks 18 and two limit rods 19. Taking the first clamp 8 as an example, the two second screw rods 17 are threadedly connected to the vertical walls on both sides of the first U-shaped frame 5, and the two chucks 18 are respectively installed on the opposite ends of the two second screw rods 17. The two limit rods 19 are respectively arranged on the two chucks 18 and slide with the vertical walls on both sides of the first U-shaped frame 5. The position of the chuck 18 can be adjusted by rotating the nut at the other end of the second screw rod 17 to achieve clamping of the furnace. An electric push rod 12 is installed at the bottom of the welding table 1. This electric push rod 12 is specifically a multi-section electric push rod 12, and its output shaft is connected to the bottom of the door frame 6, which is used to drive the door frame 6 to move on the welding table 1.

[0022] The welding assembly 3 includes a guide plate 9 vertically arranged on one side of the welding table 1, a connecting block 10 vertically slidably arranged on the guide plate 9, and a welding gun 11 installed on one side of the connecting block 10; a second motor 14 is vertically installed at the bottom of the welding table 1. The second motor 14 is also a stepping motor, and its output shaft passes through the bottom of the welding table 1 and is connected to a first screw rod 15. The other end of the connecting block 10 extends to the outside of the guide plate 9 and is threadedly matched with the first screw rod 15. The first screw rod 15 is driven to rotate by the second motor 14, so that the connecting block 10 can drive the welding gun 11 to move up and down on the guide plate 9.

[0023] During longitudinal seam welding, first place the furnace core in the first clamp 8, and adjust the position of the chuck 18 by rotating the second screw rod 17 so that it can tightly clamp the furnace core; then, start the multi-section electric push rod 12 to push the door frame 6 to move, drive the furnace core to move to the welding assembly 3, and then start the second motor 14 to drive the first screw rod 15 to rotate, so that the welding gun 11 moves up and down to perform longitudinal seam welding.

[0024] During the circumferential seam welding, the furnace core is first placed in the first clamp 8 for clamping, and then other furnace cores or components such as heads and flanges are placed in the second clamp 16 for clamping; by adjusting the positions of other furnace cores or components such as heads and flanges on the second clamp 16, the furnace core is overlapped with components such as heads and flanges, and then moved to the welding assembly 3, and the longitudinal position of the welding gun 11 is adjusted again, and finally the first motor 13 is started to rotate the first U-shaped frame 5, thereby driving the furnace core to rotate, and the circumferential seam welding is performed.

[0025] Working principle of the utility model: the utility model mainly realizes the welding of the longitudinal seam and the circumferential seam of the furnace through the coordinated operation of the multi-freedom clamping assembly 2 and the welding assembly 3.

[0026] During the longitudinal seam welding process, the furnace core is first placed in the first clamp 8, and the second screw rod 17 on the first clamp 8 is rotated so that the chuck 18 clamps and fixes the furnace core under the guidance of the limit rod 19; then, the multi-section electric push rod 12 at the bottom of the welding table 1 is started, and its output shaft pushes the door frame 6 to move, thereby driving the slider 4 and the furnace core fixed on the first U-shaped frame 5 to move along the length direction of the welding table 1 to the welding assembly 3; at this time, the second motor 14 (stepping motor) at the bottom of the welding table 1 starts to work, and its output shaft drives the first screw rod 15 to rotate, and the connecting block 10 threadedly matched with the first screw rod 15 drives the welding gun 11 to move up and down on the guide plate 9, thereby adjusting the welding gun 11 to a suitable height position so that it is aligned with the longitudinal seam of the furnace core; after preparation, the welding power supply is turned on, the welding gun 11 generates a welding arc, and the welding gun 11 moves along the longitudinal seam for welding.

[0027] For circumferential seam welding, the furnace core is first placed in the first clamp 8 and clamped, and then other furnace cores or heads, flanges and other parts that match it are placed in the second clamp 16, and the second screw rod 17 on the first clamp 8 and the second clamp 16 is adjusted to make the furnace core overlap and dock with other parts; then, the multi-section electric push rod 12 drives the portal frame 6 to move, and moves the assembled weldment to the welding assembly 3, and the position of the welding gun 11 is adjusted again by the second motor 14 to align it with the circumferential seam; then, the first motor 13 (stepping motor) on the portal frame 6 is started, and its output shaft drives the first U-shaped frame 5 to rotate, thereby causing the furnace core to rotate around its own axis. During the rotation process, the welding gun 11 remains in a suitable position for continuous welding to form a uniform circumferential seam; during the entire welding process, the movement and coordinated cooperation of each component ensure the accuracy and stability of the circumferential seam welding, and effectively improve the welding quality and production efficiency of the furnace core.

Claims

1. A welding device for furnace production, comprising a welding table (1) and a welding mechanism arranged on the welding table (1), characterized in that: The welding mechanism comprises a multi-degree-of-freedom clamping assembly (2) arranged on a welding table (1) and a welding assembly (3) arranged on the welding table (1) and used in conjunction with the multi-degree-of-freedom clamping assembly (2); the multi-degree-of-freedom clamping assembly (2) comprises a slider (4) slidably arranged in the length direction of the welding table (1), a first U-shaped frame (5) rotatably arranged on the upper part of the slider (4), a door-shaped frame (6) arranged at the bottom of the slider (4) and located outside the welding table (1), and a second U-shaped frame (7) rotatably arranged on the upper part of the door-shaped frame (6); the first U-shaped frame (5) and the second U-shaped frame (7) are arranged with their opening directions facing each other, and the first U-shaped frame (5) and the second U-shaped frame (7) are respectively provided with a first clamp (8) and a second clamp (16).

2. A welding device for furnace production as claimed in claim 1, characterized in that: The welding assembly (3) comprises a guide plate (9) vertically arranged on one side of the welding table (1), a connecting block (10) vertically slidably arranged on the guide plate (9), and a welding gun (11) arranged on one side of the connecting block (10).

3. A welding device for furnace production as claimed in claim 2, characterized in that: An electric push rod (12) is provided at the bottom of the welding table (1), and an output shaft of the electric push rod (12) is connected to the bottom of the portal frame (6).

4. A welding device for furnace production as claimed in claim 3, characterized in that: A first motor (13) is vertically arranged on the door-shaped frame (6), and an output shaft of the first motor (13) passes through a sliding block (4) and is connected to the first U-shaped frame (5).

5. A welding device for furnace production as claimed in claim 4, characterized in that: A second motor (14) is vertically arranged at the bottom of the welding table (1); an output shaft of the second motor (14) passes through the bottom of the welding table (1) and is connected to a first screw rod (15); the other end of the connecting block (10) extends to the outside of the guide plate (9) and is threadably engaged with the first screw rod (15).

6. A welding device for furnace production as claimed in claim 1, characterized in that: The first clamp (8) and the second clamp (16) both comprise two second screw rods (17), two clamps (18), and two limit rods (19); the two second screw rods (17) included in the first clamp (8) are threadedly connected to the vertical walls on both sides of the first U-shaped frame (5); the two clamps (18) are respectively arranged on opposite ends of the two second screw rods (17); the two limit rods (19) are respectively arranged on the two clamps (18) and are slidably matched with the vertical walls on both sides of the first U-shaped frame (5); the two second screw rods (17) included in the second clamp (16) are threadedly connected to the vertical walls on both sides of the second U-shaped frame (7); the two clamps (18) are respectively arranged on opposite ends of the two second screw rods (17); the two limit rods (19) are respectively arranged on the two clamps (18) and are slidably matched with the vertical walls on both sides of the second U-shaped frame (7).

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