Automatic welding and cutting device for flange pipe

Abstract

This utility model relates to the field of pipe cutting and welding technology, specifically an automatic flange pipe welding and cutting device, including a roller bracket for supporting the pipe fitting, with two sets of auxiliary rollers arranged symmetrically on the left and right sides of the roller bracket; a positioning mechanism including a lifting adjustment frame, on which a pressure roller is rotatably connected via a rotating shaft, the pressure roller being located on the upper side of the roller bracket and perpendicular to the pipe fitting axis; a driving mechanism including a first drive motor, which is mounted on the lifting adjustment frame and its output end is connected to the rotating shaft to drive the pressure roller to rotate; and an execution mechanism including a connecting seat mounted on the roller bracket for mounting a welding torch or cutting machine. This auxiliary platform enables circumferential operation without frequent manual movement of the welding torch or cutting machine, significantly improving labor efficiency; and it eliminates the need for close-range manual operation, keeping workers away from welding fumes or dangerous cutting areas, improving the working environment and protecting workers' health.

Description

Technical Field

[0001] This utility model relates to the field of pipe cutting and welding technology, specifically an automatic welding and cutting device for flange pipes. Background Technology

[0002] Currently, in the field of pipe fitting operations, especially for air ducts, water pipes, and oil pipes used in underground coal mines, flanged pipe connections are typically used to form pipelines for transporting gas or liquids. Traditional pipe fitting operations have several problems: In welding, manual arc welding is mainly used. During the welding process, workers need to constantly change the position of the welding torch, moving it along the welding trajectory on the circumference of the straight pipe fitting, resulting in low labor efficiency. Furthermore, welders are constantly operating at the welding site, resulting in significant amounts of smoke and dust, creating a harsh working environment that is harmful to their health. In cutting, traditional methods require the use of a fixing bracket to hold the pipe fitting in place, marking the cutting position, and then cutting. Different pipe models require the use of the same type of fixing bracket, resulting in poor versatility.

[0003] Therefore, there is an urgent need for an auxiliary platform for pipe fitting operations that can improve work efficiency, ensure work quality, and improve the working environment. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an auxiliary platform for pipe fitting operations that can improve work efficiency, ensure work quality, and improve the working environment.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An automatic welding and cutting device for flange pipes includes a roller bracket for supporting the pipe fittings, with two sets of auxiliary rollers arranged symmetrically on the roller bracket, one in each set; a positioning mechanism including a lifting adjustment frame, on which a pressure roller is rotatably connected via a rotating shaft, the pressure roller being located on the upper side of the roller bracket and perpendicular to the axis of the pipe fitting; a driving mechanism including a first drive motor, which is mounted on the lifting adjustment frame and has its output end connected to the rotating shaft to drive the pressure roller to rotate; and an execution mechanism including a connecting seat mounted on the roller bracket for mounting a welding torch or a cutting machine.

[0007] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:

[0008] In welding operations, after the flange joint and pipe fitting are initially welded, the entire assembly is placed on the roller support. The lifting adjustment frame is then adjusted so that the pressure roller presses onto the pipe fitting. The first drive motor drives the pressure roller, which, through friction, causes the pipe fitting and flange joint to rotate, welding as they rotate. In cutting operations, the pipe fitting to be cut is placed on the roller support, and the pressure roller presses onto it, causing the pipe fitting to rotate, cutting as it rotates. Circular operations can be achieved without frequent manual movement of the welding torch or cutting machine, significantly improving labor efficiency. Close-range manual operation is also eliminated, keeping workers away from welding fumes or dangerous cutting areas, improving the working environment and protecting worker health.

[0009] As a preferred embodiment, a further technical solution of this utility model is:

[0010] Preferably, the lifting and adjusting frame includes a portal frame, with a rotating shaft rotatably connected to two vertical bars of the portal frame, and a first drive motor mounted on one vertical bar of the portal frame; it also includes a connecting beam, with the portal frame crossbar fixed to the connecting beam and the connecting beam perpendicular to the portal frame crossbar; and a lifting drive mechanism connected to the connecting beam to drive the connecting beam to move up and down. The structure of the portal frame allows for stable mounting of the rotating shaft and pressure roller, and the connecting beam is perpendicular to the portal frame crossbar, ensuring uniform force transmission of the lifting drive mechanism and smooth lifting of the portal frame and pressure roller. The lifting drive mechanism can adjust the height of the pressure roller according to the pipe diameter, making it suitable for pipes of different diameters and improving the equipment's versatility.

[0011] Preferably, the lifting drive mechanism includes two symmetrically arranged support columns. An electric push rod is mounted on the top of each support column, and a vertical groove on the support column guides the push rod's movement. First sliding grooves are provided on the side walls of the vertical grooves. A first slider is mounted at the end of the crossbeam, slidably connected in the first sliding grooves. The end of the push rod is fixedly connected to the connecting crossbeam. The cooperation of the vertical grooves and the first sliding grooves provides guidance for the push rod of the electric push rod and the crossbeam, improving lifting accuracy. The electric push rod, as a power source, can precisely control the lifting stroke, achieving accurate adjustment of the pressure roller height and meeting the requirements of different operations for the pressure roller position.

[0012] Preferably, the roller bracket includes two spaced-apart first slide rails, and two sets of auxiliary rollers are respectively disposed on the two first slide rails; the auxiliary rollers are rotatably connected to a wheel seat, and a first locking screw is threaded onto the wheel seat, with a first locking block disposed at the lower end of the first locking screw; by rotating the first locking screw, the first locking block can be slidably disposed in the first T-shaped groove of the first slide rail, or abut against the first T-shaped groove; by rotating the first locking screw, the distance between the two auxiliary rollers in each set can be adjusted, thereby accommodating pipe fittings of different diameters and improving the equipment's adaptability to pipe fittings; when adjusted to a suitable position, the locking screw can fix the auxiliary rollers, ensuring the stability of the pipe fitting support.

[0013] Preferably, the roller bracket further includes a second slide rail, and a second locking screw is threadedly connected to the connecting seat. A second locking block is provided at the lower end of the second locking screw. By rotating the second locking screw, the second locking block can be slidably disposed in the second T-shaped groove of the second slide rail, or abut against the second T-shaped groove. The setting of the second slide rail and the second locking screw facilitates the flexible adjustment of the position of the connecting seat according to different operating requirements and pipe sizes, thereby enhancing the versatility and practicality of the equipment.

[0014] Preferably, the roller support also includes a base, on which a second slide groove is provided. The second slide groove is arranged along the length of the pipe. A second slider is provided on the bottom surface of both the first and second slides, and the second slider is slidably connected in the second slide groove. It also includes a first cylinder and two second cylinders. The output end of the second slide groove is connected to one of the first slides, and the output end of the second cylinder is connected to the corresponding second slide. The base and the second slide groove provide a track for the first and second slides to move along their length. The first and second cylinders serve as power sources, driving the first and second slides to move in the second slide groove. This allows the roller support to adapt to pipes of different lengths, further expanding the applicability of the equipment.

[0015] Preferably, a third cylinder is provided on the connecting seat, and a quick-release seat is provided on the third cylinder, on which the welding gun or cutting machine is installed; this can be applied to pipe fittings of different diameters.

[0016] Preferably, the first slide rail is provided with scale markings, which are symmetrically arranged from the center to both sides. The scale markings provide an intuitive reference for adjusting the position of the auxiliary rollers on the first slide rail. According to the size of the pipe fitting, the operator can accurately adjust the position of the auxiliary rollers through the scale markings to ensure the symmetry and accuracy of the pipe fitting support and ensure the balanced support of the pipe fitting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the automatic flange pipe welding and cutting device in use according to an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the automatic flange pipe welding and cutting device in this utility model embodiment;

[0019] Figure 3 This is a schematic diagram of the connection structure of the connecting beam in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first slide in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Base; 101. Second slide rail; 2. First drive motor; 3. First slide rail; 301. First T-shaped slide rail; 4. Second slide rail; 5. First cylinder; 6. Second cylinder; 7. Auxiliary roller; 8. Connecting seat; 9. Third cylinder; 10. Welding torch; 11. Support column; 1101. Vertical groove; 1102. First slide rail; 12. Electric actuator; 13. Portal frame; 14. Rotating shaft; 15. Pressure roller; 16. Connecting beam; 17. Pipe fitting; 18. Flange joint; 19. Wheel seat; 20. First locking screw; 21. Second locking screw; 22. Scale marking; 23. First slider. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments. The purpose of this description is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0023] like Figures 1 to 4 As shown, this embodiment provides an automatic flange pipe welding and cutting device, including a roller bracket for supporting the pipe fitting 17. Two sets of auxiliary rollers 7 are arranged on the roller bracket, with two rollers in each set, symmetrically arranged left and right. The positioning mechanism includes a lifting adjustment frame, on which a pressure roller 15 is rotatably connected via a rotating shaft 14. The pressure roller 15 is located on the upper side of the roller bracket and is perpendicular to the axis of the pipe fitting 17. The driving mechanism includes a first drive motor 2, which is mounted on the lifting adjustment frame and its output end is connected to the rotating shaft 14 to drive the pressure roller 15 to rotate. The execution mechanism includes a connecting seat 8 mounted on the roller bracket for mounting a welding torch 10 or a cutting machine. The welding torch 10 is a carbon dioxide gas shielded welding torch, and the cutting machine is a handheld cutting machine.

[0024] During welding operations, a welding torch 10 is bolted and fixed to the connecting seat 8. After the flange joint 18 and the pipe fitting 17 are initially welded (spot welded), the pipe fitting 17 and the flange joint 18 are placed on the roller bracket as a whole. Then, the lifting adjustment frame is adjusted so that the pressure roller 15 presses onto the pipe fitting 17. The first drive motor 2 drives the pressure roller 15, which drives the pipe fitting 17 and the flange joint 18 to rotate through friction, welding while rotating. During cutting operations, a cutting machine is bolted and fixed to the connecting seat 8. The pipe fitting 17 to be cut is placed on the roller bracket, and the pressure roller 15 presses onto the pipe fitting 17, driving the pipe fitting 17 to rotate, cutting while rotating. Circular operation can be achieved without frequent manual movement of the welding torch 10 or the cutting machine, greatly improving labor efficiency. Moreover, close-range manual operation is not required, allowing workers to stay away from welding fumes or dangerous cutting areas, improving the working environment and protecting the health of workers.

[0025] It also includes a main controller, which is connected to the first drive motor 2. To ensure that the pressure roller 15 can drive the pipe fitting 17 to rotate synchronously when it rotates, the pressure roller 15 is covered with a rubber anti-slip layer to increase the friction between it and the pipe fitting 17. A pressure sensor is installed on the lower side of the roller bracket, and the pressure sensor is connected to the main controller. After the pressure roller 15 presses against the pipe fitting 17, the pressure sensor can detect whether a preset pressure value has been reached to determine whether the displacement of the pressure roller 15 is in place. At the same time, an angular velocity sensor is installed on the connecting shaft of the auxiliary roller 7, and the angular velocity sensor is connected to the main controller to monitor the rotational speed of the pipe fitting 17.

[0026] The lifting and adjusting frame includes a portal frame 13, with a rotating shaft 14 rotatably connected to two vertical bars of the portal frame 13. A first drive motor 2 is mounted on one vertical bar of the portal frame 13. It also includes a connecting beam 16, with the horizontal bar of the portal frame 13 fixedly connected to the connecting beam 16, and the connecting beam 16 perpendicular to the horizontal bar of the portal frame 13. Furthermore, it includes a lifting drive mechanism connected to the connecting beam 16 to drive the connecting beam 16 up and down. Specifically, the lifting drive mechanism includes two symmetrically arranged support columns 11. An electric push rod 12 is mounted on the top of each support column 11. Vertical grooves 1101 for powering the push rod 12 are provided on the support columns 11, and first sliding grooves 1102 are provided on both sides of the vertical grooves 1101. A first slider 23 is mounted at the end of the beam, slidably connected in the first sliding groove 1102. The end of the push rod is fixedly connected to the connecting beam 16. The electric push rod 12 is connected to the main controller. When the electric actuator 12 outputs, the output end of the electric actuator 12, along with the connecting beam 16 and the portal frame 13, slides down along the first slide groove 1102, and the pressure roller 15 presses down; when the electric actuator 12 retracts, the output end of the electric actuator 12, along with the connecting beam 16 and the portal frame 13, moves up along the first slide groove 1102, and the pressure roller 15 lifts up.

[0027] The roller support includes two spaced-apart first slide rails 3, and two sets of auxiliary rollers 7 are respectively mounted on the two first slide rails 3. The auxiliary rollers 7 are rotatably connected to wheel seats 19, and the wheel seats 19 are threadedly connected to first locking screws 20. The lower end of the first locking screws 20 is provided with a first locking block. By rotating the first locking screws 20, the first locking block can be slidably mounted in the first T-shaped groove 301 of the first slide rail 3, or abut against the first T-shaped groove 301. By rotating the first locking screws 20, the distance between the two auxiliary rollers 7 in each set can be adjusted to accommodate pipe fittings 17 of different diameters, thereby improving the equipment's adaptability to pipe fittings 17. When adjusted to a suitable position, the locking screws can fix the auxiliary rollers 7, ensuring the stability of the pipe fitting 17 support.

[0028] Preferably, the roller bracket also includes a second slide rail 4, and a second locking screw 21 is threadedly connected to the connecting seat 8. A second locking block is provided at the lower end of the second locking screw 21. By rotating the second locking screw 21, the second locking block can be slidably disposed in the second T-shaped groove of the second slide rail 4, or abut against the second T-shaped groove. At the same time, a third cylinder 9 is also provided on the connecting seat 8. The output end of the third cylinder 9 is located on the upper side, and a quick-release seat is provided on the output end. The welding torch 10 or the cutting machine is installed on the quick-release seat. The height of the welding torch 10 or the cutting machine can be controlled by the third cylinder 9. Thus, it is convenient to flexibly adjust the horizontal position and height of the welding torch 10 or the cutting machine according to different operation requirements and pipe fitting 17 dimensions, thereby enhancing the versatility and practicality of the equipment.

[0029] When welding butt flanges to both ends of pipe fitting 17 (flange joint 18 and pipe fitting 17 have a weld seam), such as Figure 1 , 2 As shown, a welding torch 10 is installed at each end of the pipe fitting 17. When welding flat flanges at both ends of the pipe fitting 17 (the flange joint 18 and the pipe fitting 17 have two weld seams), the number of welding torches 10 can be increased by adding the second slide rail 4, connecting seat 8, third cylinder 9, and quick-release seat, with two welding torches 10 at each end of the pipe fitting 17 corresponding to the two weld seams. When performing cutting operations, the welding torches 10 can be replaced with a handheld cutting machine.

[0030] Preferably, the roller support also includes a base 1, on which a second slide groove 101 is provided. The second slide groove 101 is arranged along the length of the pipe fitting 17. The bottom surfaces of the first slide rail 3 and the second slide rail 4 are each provided with a second slider, which is slidably connected in the second slide groove 101. It also includes a first cylinder 5 and two second cylinders 6. The output end of the second slide groove 101 is connected to one of the first slide rails 3, and the output end of the second cylinder 6 is connected to the corresponding second slide rail 4. The base 1 and the second slide groove 101 provide a track for the first slide rail 3 and the second slide rail 4 to move along the length. The first cylinder 5 and the second cylinder 6 serve as power sources and can drive the first slide rail 3 and the second slide rail 4 to move in the second slide groove 101, so that the roller support can adapt to the operation of pipe fittings 17 of different lengths. The first cylinder 5 and the two second cylinders 6 are connected to the main controller.

[0031] The first slide rail 3 is provided with scale markings 22, which are symmetrically arranged from the middle to both sides. The scale markings 22 provide an intuitive reference for adjusting the position of the auxiliary roller 7 on the first slide rail 3. According to the size of the pipe fitting 17, the staff can accurately adjust the position of the auxiliary roller 7 through the scale to ensure the symmetry and accuracy of the support of the pipe fitting 17 and ensure the balanced support of the pipe fitting 17.

[0032] The above description is merely a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. An automatic welding and cutting device for flange pipes, characterized in that: include Roller bracket is used to support pipe fittings (17). Two sets of auxiliary rollers (7) are arranged on the front and rear of the roller bracket, with two rollers in each set, symmetrically arranged on the left and right. The positioning mechanism includes a lifting adjustment frame, on which a pressure roller (15) is rotatably connected via a rotating shaft (14). The pressure roller (15) is located on the upper side of the roller bracket and is set perpendicular to the axis of the pipe fitting (17). The drive mechanism includes a first drive motor (2), which is mounted on the lifting adjustment frame and its output end is connected to the rotating shaft (14) to drive the pressure roller (15) to rotate. The actuator includes a connecting seat (8) mounted on a roller bracket for mounting a welding torch (10) or a cutting machine.

2. The automatic flange pipe welding and cutting device according to claim 1, characterized in that: The lifting and adjusting frame includes a portal frame (13), a rotating shaft (14) rotatably connected to two vertical bars of the portal frame (13), and a first drive motor (2) set on one side of the vertical bar of the portal frame (13); it also includes a connecting beam (16), the horizontal bar of the portal frame (13) is fixed to the connecting beam (16), and the connecting beam (16) is set perpendicular to the horizontal bar of the portal frame (13); it also includes a lifting drive mechanism, which is connected to the connecting beam (16) to drive the connecting beam (16) to move up and down.

3. The automatic flange pipe welding and cutting device according to claim 2, characterized in that: The lifting drive mechanism includes two support columns (11) arranged symmetrically on the left and right. An electric push rod (12) is provided on the top of the support column (11). A vertical groove (1101) is provided on the support column (11) to allow the push rod (12) to move. A first sliding groove (1102) is provided on both sides of the vertical groove (1101). A first slider (23) is provided at the end of the crossbeam. The first slider (23) is slidably connected in the first sliding groove (1102). The end of the push rod is fixedly connected to the connecting crossbeam (16).

4. The automatic flange pipe welding and cutting device according to claim 1, characterized in that: The roller bracket includes two first slide rails (3) spaced apart, and two sets of auxiliary rollers (7) are respectively set on the two first slide rails (3); the auxiliary rollers (7) are rotatably connected to the wheel seat (19), and the wheel seat (19) is threadedly connected to the first locking screw (20), and the lower end of the first locking screw (20) is provided with a first locking block; by rotating the first locking screw (20), the first locking block can be slidably set in the first T-shaped groove (301) of the first slide rail (3), or abut against the first T-shaped groove (301).

5. The automatic flange pipe welding and cutting device according to claim 4, characterized in that: The roller bracket also includes a second slide rail (4), and a second locking screw (21) is threaded onto the connecting seat (8). A second locking block is provided at the lower end of the second locking screw (21). By rotating the second locking screw (21), the second locking block can be slidably disposed in the second T-shaped groove of the second slide rail (4) or abut against the second T-shaped groove.

6. The automatic flange pipe welding and cutting device according to claim 5, characterized in that: The roller bracket also includes a base (1), on which a second slide groove (101) is provided. The second slide groove (101) is arranged along the length of the pipe fitting (17). The bottom surfaces of the first slide (3) and the second slide (4) are provided with second sliders, which are slidably connected in the second slide groove (101). It also includes a first cylinder (5) and two second cylinders (6). The output end of the second slide groove (101) is connected to one of the first slides (3), and the output end of the second cylinder (6) is connected to the corresponding second slide (4).

7. The automatic flange pipe welding and cutting device according to claim 4, characterized in that: A third cylinder (9) is provided on the connecting seat (8), and a quick-release seat is provided on the third cylinder (9). The welding gun (10) or cutting machine is installed on the quick-release seat.

8. The automatic flange pipe welding and cutting device according to claim 4, characterized in that: The first slide (3) is provided with scale markings (22), which are symmetrically arranged from the middle to both sides.

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