Rapid welding device for female and male grooves of pipeline

Abstract

The rapid welding device comprises a mounting ring, the mounting ring is fixedly connected to the middle of the top wall of a movable block, the front portion and the rear portion of the inner side of the mounting ring are fixedly connected with a plurality of sets of annularly-distributed connecting rods, and the other ends of the connecting rods are fixedly connected to the front side and the rear side of the periphery of the mounting block respectively and annularly distributed. The middle of the front wall of the mounting block is fixedly connected with a driving motor, an output shaft of the driving motor is fixedly connected with a turntable, the turntable is rotatably connected to the middle of the mounting block, and the upper side of the middle of the periphery of the turntable is fixedly connected with a fixing rod. According to the rapid welding device for the female and male grooves of the pipeline, after the welded pipeline is fixed, a driving motor is started, an output shaft of the driving motor rotates to enable a rotating disc to rotate on the inner side of a mounting block, and therefore a fixing rod and a connecting plate rotate; the output end of the welding assembly can automatically weld the inner wall of the butt joint of the pipelines, and the pipeline welding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding, in particular to a rapid welding device for positive and negative grooves of pipelines. Background Art

[0002] At present, due to the development needs of the domestic industrial boiler market, most of the small and medium-sized pressurized and non-pressurized boilers in the boiler market have too much investment in water treatment problems, and many water treatment pipelines do not meet the boiler water quality standards, resulting in boiler tube bursts, cracks, bulging, overheating and burning, boiler body deformation and other accidents. The high concentration of alkali under the scale produces alkaline corrosion, resulting in thinning of the water-cooled wall tube wall thickness and corrosion of the base metal along the grain boundaries and formation of microcracks, which eventually lead to tube bursts under the action of internal pressure, resulting in low pipeline maintenance efficiency and affecting the normal use of the boiler.

[0003] In the prior art, when welding the yin-yang grooves of pipes, workers are usually required to hold a welding machine to weld inside the pipe. This welding method is not only inefficient, but also requires the pipe to be rotated and adjusted when welding the top of the pipe during the welding process, which increases the difficulty of welding. Therefore, there is an urgent need for a fast welding device for the yin-yang grooves of pipes. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] The utility model discloses a rapid welding device for the positive and negative grooves of a pipeline, comprising a mounting ring, wherein an automatic welding mechanism is arranged inside the mounting ring;

[0006] The automatic welding mechanism includes a mounting ring, which is fixedly connected to the middle part of the top wall of the moving block, and the front and rear parts of the inner side of the mounting ring are fixedly connected to multiple groups of connecting rods distributed in an annular manner, and the other ends of the connecting rods are respectively fixedly connected to the front and rear sides of the outer periphery of the mounting block and are distributed in an annular manner, a driving motor is fixedly connected to the middle part of the front wall of the mounting block, and the output shaft of the driving motor is fixedly connected to a turntable, and the turntable is rotatably connected to the middle part of the mounting block, a fixing rod is fixedly connected to the upper side of the middle part of the outer periphery of the turntable, and a connecting plate is fixedly connected to the top wall of the fixing rod, a welding assembly is arranged on the top of the connecting plate, and a welding groove is arranged in the middle part of the mounting ring.

[0007] As a preferred technical solution of the utility model, the output end of the welding assembly is located inside the welding groove, and the fixing rod is located between the front and rear connecting rods.

[0008] As a preferred technical solution of the utility model, the moving block is fixedly connected to the output end of the cylinder, and the cylinder is fixedly connected to the front end of the top wall of the mounting plate.

[0009] As a preferred technical solution of the utility model, a mounting groove is provided in the middle of the bottom wall of the mounting plate, and a bidirectional screw is rotatably connected to the middle of the mounting groove.

[0010] As a preferred technical solution of the utility model, both front and rear sides of the outer circumference of the bidirectional screw are threadedly connected with thread blocks, and the thread blocks are slidably connected to the inner side of the installation groove.

[0011] As a preferred technical solution of the utility model, the bidirectional screw is fixedly connected to the output end of the servo motor, and the servo motor is fixedly connected to the middle part of the rear wall of the mounting plate.

[0012] As a preferred technical solution of the utility model, a clamping plate is fixedly connected to the middle of the bottom wall of the threaded block, and the clamping plates are respectively located at the front and rear sides of the bottom of the mounting plate.

[0013] The beneficial effects of the utility model are:

[0014] 1. This kind of rapid welding device for the positive and negative grooves of the pipeline is configured to place the mounting ring inside the welding pipeline, and then start the servo motor. The output shaft of the servo motor rotates to rotate the bidirectional screw inside the mounting groove. The rotation of the bidirectional screw makes the front and rear thread blocks approach each other, so that the clamping plates at the bottom of the thread blocks approach each other, and the outer end of the pipeline to be welded is clamped and fixed, so that the welding operation can be performed after the butt joint is completed, thereby improving the welding quality of the welding device;

[0015] 2. This kind of rapid welding device for the positive and negative grooves of pipelines starts the driving motor after fixing the welding pipeline. The output shaft of the driving motor rotates to rotate the turntable inside the mounting block, thereby rotating the fixing rod and the connecting plate. The welding assembly is started during the rotation of the fixing rod, so that the output end of the welding assembly can automatically weld the inner wall of the pipeline joint, thereby improving the pipeline welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a front view schematic diagram of the overall structure of a quick welding device for the positive and negative grooves of a pipeline of the utility model;

[0018] Figure 2 It is a rear view schematic diagram of the overall structure of a quick welding device for the positive and negative grooves of a pipeline according to the utility model;

[0019] Figure 3 It is a bottom view schematic diagram of the overall structure of a quick welding device for the positive and negative grooves of a pipeline according to the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the welding structure of a rapid welding device for positive and negative grooves of pipelines.

[0021] In the figure: 1. Mounting ring; 2. Automatic welding mechanism; 3. Welding groove; 4. Connecting rod; 5. Mounting block; 6. Turntable; 7. Driving motor; 8. Fixing rod; 9. Connecting plate; 10. Welding assembly; 11. Cylinder; 12. Mounting plate; 13. Moving block; 14. Servo motor; 15. Mounting groove; 16. Bidirectional screw; 17. Threaded block; 18. Clamp. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] Example: Figure 1-4 As shown, the utility model is a rapid welding device for the positive and negative grooves of a pipeline, comprising a mounting ring 1, and an automatic welding mechanism 2 is arranged inside the mounting ring 1;

[0024] The automatic welding mechanism 2 includes a mounting ring 1, which provides space for the automatic welding mechanism 2. The mounting ring 1 is fixedly connected to the middle of the top wall of the moving block 13. The front and rear parts of the inner side of the mounting ring 1 are fixedly connected to multiple groups of connecting rods 4 distributed in an annular manner. The connecting rods 4 can connect and fix the mounting block 5 and the mounting ring 1. The other ends of the connecting rods 4 are respectively fixedly connected to the front and rear sides of the outer periphery of the mounting block 5 and are distributed in an annular manner. A driving motor 7 is fixedly connected to the middle of the front wall of the mounting block 5. The output shaft of the driving motor 7 is fixedly connected to a turntable 6. During the operation of the driving motor 7, the output shaft rotates to cause the turntable 6 to rotate inside the mounting block 5, thereby adjusting the welding position of the welding assembly 10. The turntable 6 is rotatably connected to the middle of the mounting block 5. A fixing rod 8 is fixedly connected to the upper side of the middle part of the outer periphery of the turntable 6. A connecting plate 9 is fixedly connected to the top of the fixing rod 8. A welding assembly 10 is arranged on the top of the connecting plate 9. A welding groove 3 is arranged in the middle of the mounting ring 1. The output end of the welding assembly 10 is located inside the welding groove 3 to weld the two groups of pipe docking positions.

[0025] The output end of the welding assembly 10 is located inside the welding groove 3, and the fixing rod 8 is located between the front and rear connecting rods 4. During the rotation of the welding assembly 10, the connecting rod 4 and the mounting ring 1 are fixed and do not interfere with each other.

[0026] Among them, the moving block 13 is fixedly connected to the output end of the cylinder 11, and the cylinder 11 is fixedly connected to the front end of the top wall of the mounting plate 12. During the operation of the cylinder 11, the output end is extended and retracted to make the moving block 13 move back and forth on the upper side of the mounting plate 12 to adjust the position of the mounting ring 1.

[0027] Among them, a mounting groove 15 is set in the middle of the bottom wall of the mounting plate 12, and a bidirectional screw 16 is rotatably connected in the middle of the mounting groove 15. During the operation of the bidirectional screw 16, the threaded blocks 17 will move away from or closer to each other, thereby clamping or releasing the clamping state of the welding pipe.

[0028] The front and rear sides of the bidirectional screw 16 are both threadedly connected with thread blocks 17 , and the thread blocks 17 are slidably connected to the inner side of the mounting groove 15 . The movement of the thread blocks 17 will drive the clamping plate 18 to move synchronously.

[0029] The bidirectional screw 16 is fixedly connected to the output end of the servo motor 14 , and the servo motor 14 is fixedly connected to the middle of the rear wall of the mounting plate 12 . The servo motor 14 is the power source of the clamping assembly.

[0030] Among them, a clamping plate 18 is fixedly connected to the middle of the bottom wall of the threaded block 17, and the clamping plates 18 are respectively located at the front and back sides of the bottom of the mounting plate 12. The clamping plates 18 can clamp both ends of the pipe, so that the mounting ring 1 is fixed on the inner side of the pipe.

[0031] Working principle: Place the mounting ring 1 inside the welding pipe, then start the servo motor 14, the output shaft of the servo motor 14 rotates to make the bidirectional screw 16 rotate inside the mounting groove 15, the bidirectional screw 16 rotates to make the front and rear threaded blocks 17 approach each other, so that the bottom clamping plates 18 of the threaded blocks 17 approach each other, clamp and fix the outer end of the pipe to be welded, and perform welding operation on it after the butt joint is completed, start the drive motor 7, the output shaft of the drive motor 7 rotates to make the turntable 6 rotate inside the mounting block 5, so that the fixing rod 8 and the connecting plate 9 rotate, and start the welding assembly 10 during the rotation of the fixing rod 8, so that the output end of the welding assembly 10 can automatically weld the inner wall of the pipe butt joint.

[0032] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rapid welding device for the positive and negative grooves of a pipeline, comprising a mounting ring (1), characterized in that: An automatic welding mechanism (2) is arranged inside the mounting ring (1); The automatic welding mechanism (2) comprises a mounting ring (1), wherein the mounting ring (1) is fixedly connected to the middle of the top wall of the moving block (13), and a plurality of groups of connecting rods (4) distributed in an annular manner are fixedly connected to the front and rear ends of the inner side of the mounting ring (1), and the other ends of the connecting rods (4) are respectively fixedly connected to the front and rear sides of the outer periphery of the mounting block (5) and are distributed in an annular manner, and a driving motor (7) is fixedly connected to the middle of the front wall of the mounting block (5), and the output shaft of the driving motor (7) is fixedly connected to a turntable (6), and the turntable (6) is rotatably connected to the middle of the mounting block (5), and a fixing rod (8) is fixedly connected to the upper side of the middle of the outer periphery of the turntable (6), and a connecting plate (9) is fixedly connected to the top wall of the fixing rod (8), and a welding assembly (10) is arranged on the top of the connecting plate (9), and a welding groove (3) is arranged in the middle of the mounting ring (1).

2. A rapid welding device for pipeline positive and negative grooves according to claim 1, characterized in that: The output end of the welding assembly (10) is located inside the welding groove (3), and the fixing rod (8) is located between the front and rear connecting rods (4).

3. The rapid welding device for the positive and negative grooves of a pipeline according to claim 1 is characterized in that: The moving block (13) is fixedly connected to the output end of the cylinder (11), and the cylinder (11) is fixedly connected to the front end of the top wall of the mounting plate (12).

4. A rapid welding device for pipeline positive and negative grooves according to claim 3, characterized in that: A mounting groove (15) is provided in the middle of the bottom wall of the mounting plate (12), and a bidirectional screw rod (16) is rotatably connected in the middle of the mounting groove (15).

5. A rapid welding device for pipeline positive and negative grooves according to claim 4, characterized in that: The front and rear sides of the outer circumference of the bidirectional screw (16) are both threadedly connected with thread blocks (17), and the thread blocks (17) are slidably connected to the inner side of the installation groove (15).

6. A rapid welding device for pipeline positive and negative grooves according to claim 5, characterized in that: The bidirectional screw (16) is fixedly connected to the output end of the servo motor (14), and the servo motor (14) is fixedly connected to the middle part of the rear wall of the mounting plate (12).

7. The rapid welding device for the positive and negative grooves of a pipeline according to claim 5 is characterized in that: A clamping plate (18) is fixedly connected to the middle of the bottom wall of the threaded block (17), and the clamping plates (18) are respectively located at the front and rear sides of the bottom of the mounting plate (12).

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