Pipe fitting intersecting line automatic welding system and welding method

Abstract

The invention discloses a pipe fitting intersecting line automatic welding system and method, and relates to the technical field of welding systems.The pipe fitting intersecting line automatic welding system comprises a first frame body, second plate bodies are symmetrically installed on the top of the first frame body, third electric telescopic units are installed on one sides of the second plate bodies, and a fixing plate is installed at the output end of each third electric telescopic unit; a first pipe body is installed on the inner side of the first frame body, a second pipe body is installed on the top of the first pipe body, buffering mechanisms are symmetrically arranged on the two sides of the fixing plate, a frame body is installed on the top of the first plate body, and a second hydraulic telescopic unit is installed on the top of the frame body. When a welding gun or a second lifting plate makes contact with a buffer plate, a first spring buffers impact of the buffer plate, damage to the welding gun is reduced, meanwhile, a pressure sensing unit detects pressure, the welding gun and a motor stop working, and then a third electric telescopic unit drives a fixing plate to move outwards and does not make contact with a first pipe body any more; and then the welding gun continues to conduct welding.

Description

Technical Field

[0001] The invention relates to the technical field of welding systems, and in particular to an automatic welding system and a welding method for a pipe intersection line. Background Art

[0002] The intersection line of pipe fittings is the part where two pipe fittings contact each other when they intersect. The two pipe fittings need to be fixed before welding can be performed on the intersection line of pipe fittings. The fixing mechanism is easy to interfere with the fixation of the welding gun to the pipe fitting. When the welding gun collides with the fixing mechanism of the pipe fitting during welding around the pipe fitting, it is also easy to cause damage to the welding gun.

[0003] The defects of the existing welding system are: 1. The prior art KR1020160071130A discloses welding equipment and a welding system. This technology does not have the function of reducing the damage caused by the collision between the moving welding gun and the fixed structure of the workpiece. When welding the intersection line of pipe fittings, both the upper and lower pipe fittings need to be fixed. When the welding gun performs circumferential welding on the workpiece, the welding gun is prone to collide with the fixing mechanism of the upper pipe fitting. Therefore, an automatic welding system for the intersection line of pipe fittings is needed to solve this problem, which can reduce the damage caused by the welding gun when it collides with the fixing mechanism of the upper pipe fitting during circumferential welding.

[0004] 2. The prior art KR1020150144829A discloses a welding robot system. When welding and fixing two upper and lower pipe fittings, when the contact parts of the two pipe fittings are not suitable, the fixing mechanism needs to be separated from the pipe fittings to change the position of the docking point of the pipe fittings, which makes the process of adjusting the pipe fittings complicated. Therefore, a pipe intersecting line automatic welding system is needed to solve this problem, which can rotate the pipe fittings to adjust the position of the docking interface without separating the fixing mechanism from the pipe fittings.

[0005] 3. The prior art KR1020050007084A discloses an automated system for welding robot welding solutions. This technology does not have a structure for reducing the damage caused by the welding gun colliding with the pipe fixing structure during circumferential welding. Therefore, an automatic pipe intersection line welding system that can reduce the collision damage caused by the welding gun during circumferential welding is needed to solve this problem.

[0006] 4. Prior art CN112743342B discloses an intersecting line welding device, which does not have a structure for reducing the damage to the welding gun by changing the inclination of the welding gun when the welding gun is hit. At the same time, the welding gun cannot be returned to its original position when the welding gun is tilted due to a collision. Therefore, a pipe intersecting line automatic welding system is needed to solve this problem, which can reduce damage by changing the position of the welding gun when it is hit and can automatically return to its original position. Summary of the invention

[0007] One purpose of the present application is to provide a pipe intersection line automatic welding system and welding method, which can solve the technical problems raised in the prior art.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic welding system for intersecting lines of pipe fittings, comprising a plate body 1, a hydraulic telescopic unit 1 and a frame body, a control unit is installed on the top of the plate body 1, a plurality of hydraulic telescopic units 1 are installed on the bottom of the plate body 1, and the hydraulic telescopic unit 1 is connected to the control unit by electrical signals, a frame body 1 is installed on the output end of the hydraulic telescopic unit 1, a plate body 2 is symmetrically installed on the top of the frame body 1, an electric telescopic unit 3 is installed on one side of the plate body 2, and the electric telescopic unit 3 is connected to the control unit by electrical signals, a fixed plate is installed on the output end of the electric telescopic unit 3, a pipe body 1 is installed on the inner side of the frame body 1, a pipe body 2 is installed on the top of the pipe body 1, and buffer mechanisms are symmetrically arranged on both sides of the fixed plate; A frame is installed on the top of the plate body 1, a hydraulic telescopic unit 2 is installed on the top of the frame, and the hydraulic telescopic unit 2 is connected to the control unit via an electrical signal, and a welding mechanism is provided at the output end of the hydraulic telescopic unit 2.

[0009] Preferably, a plurality of pillars are symmetrically installed on the bottom of the plate body 1.

[0010] Preferably, an electric telescopic unit 1 is symmetrically installed on both sides of the frame body 1, and the electric telescopic unit 1 is electrically signal-connected to the control unit, a movable plate 1 is installed at the output end of the electric telescopic unit 1, and the movable plate 1 is located on the inner side of the frame body 1, a block is symmetrically installed on one side of the movable plate 1, and a rotating rod is movably installed through the inner side of the block.

[0011] Preferably, an electric telescopic unit 2 is installed on one side of the movable plate 1, and the electric telescopic unit 2 is electrically connected to the control unit, and a fixed block is installed at the output end of the electric telescopic unit 2, and the fixed block is located on the inner side of the rotating rod.

[0012] Preferably, the buffer mechanism includes a pressure sensing unit, a plate body three, a spring one and a buffer plate. The pressure sensing units are symmetrically installed on both sides of the fixed plate, and the pressure sensing units are electrically connected to the control unit. The input end of the pressure sensing unit is installed with a plate body three, one side of the plate body three is installed with multiple springs one, and a buffer plate is installed at one end of the spring one.

[0013] Preferably, the welding mechanism includes a lifting plate one, a motor, a rotating plate, an electric telescopic unit four, a cylindrical block, a movable ring, a plate body four, an electric telescopic unit five, a lifting plate two and a welding gun, the top of the lifting plate one is connected to the output end of the hydraulic telescopic unit two, the bottom of the lifting plate one is equipped with a motor, and the motor is electrically connected to the control unit by signal, the output end of the motor is equipped with a rotating plate, the bottom of the rotating plate is equipped with an electric telescopic unit four, and the electric telescopic unit four is electrically connected to the control unit by signal, the output end of the electric telescopic unit four is equipped with a cylindrical block, the outer side of the cylindrical block is movably equipped with a movable ring, the back side of the movable ring is equipped with a plate body four, the back side of the plate body four is equipped with an electric telescopic unit five, and the electric telescopic unit five is electrically connected to the control unit by signal, the output end of the electric telescopic unit five is equipped with a lifting plate two, and the bottom of the lifting plate two is equipped with a welding gun.

[0014] Preferably, plate bodies five are symmetrically installed on both sides of the rotating plate, spring two is installed on the back of plate body five, and one end of spring two is connected to the front of plate body four, a camera is installed at the bottom of plate body four, and the camera is electrically connected to the control unit.

[0015] Preferably, a water tank is installed on the top of plate body one, an air pump is installed on the top of the water tank, and the air pump is electrically connected to the control unit, a pipe one is installed at the input end of the air pump, and one end of the pipe one passes through the top inner wall of the water tank, and a pipe two is installed at the output end of the air pump, and one end of the pipe two is located in front of pipe body two.

[0016] Preferably, the welding method of the pipe intersection automatic welding system is as follows: S1, place the tube body 1 horizontally on the inner side of the frame body 1, place the tube body 2 vertically on the top of the tube body 1, and move the fixing plate inward to clamp the tube body 2; S2, then align the opening at the top of the second tube body with the bottom port of the first tube body, and then move the first moving plate inward to allow the rotating rod to clamp the first column tube body; S3, the fixing block is moved inward to squeeze and fix the tube body 1, the hydraulic telescopic unit 2 drives the welding gun to move downward, the welding gun welds the contact part of the tube body 1 and the tube body 2, and at the same time, the motor drives the welding gun to rotate to perform circumferential welding on the contact part of the tube body 1 and the tube body 2; S4. When the welding gun or lifting plate 2 contacts the buffer plate, spring 1 buffers the impact of the buffer plate to reduce damage to the welding gun. At the same time, the pressure sensing unit detects the pressure, and the welding gun and the motor stop working. S5. Then the electric telescopic unit 3 drives the fixed plate to move outward and no longer contacts the tube body 1. Then the spring 2 pulls the plate body 4 and the welding gun back to their original positions, and then the welding gun continues to weld.

[0017] Preferably, the step S3 further includes the following steps: S31. The vacuum pump sucks the smoke around the welding gun into the water tank, and the water in the water tank absorbs the smoke.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, when the welding gun or the lifting plate 2 contacts the buffer plate, the spring 1 buffers the impact of the buffer plate to reduce damage to the welding gun. At the same time, the pressure sensing unit detects the pressure, the welding gun and the motor stop working, and then the electric telescopic unit 3 drives the fixed plate to move outward and no longer contacts the tube body 1, and then the welding gun continues to weld.

[0019] 2. The present invention enables the rotating rod to clamp the column tube body 1 by moving the movable plate 1 inward. When it is necessary to adjust the hole on the tube body 1 so that the hole is aligned with the end of the tube body 2, the tube body 1 can be directly rotated on the inner side of the rotating rod to adjust the position of the hole on the tube body 1 without moving the movable plate 1 outward, and the adjustment process is simpler.

[0020] 3. In the present invention, when the welding gun or the lifting plate 2 contacts the buffer plate, the spring 1 buffers the impact of the buffer plate to reduce damage to the welding gun. At the same time, the pressure sensing unit detects the pressure, and the welding gun and the motor stop working.

[0021] 4. In the present invention, when the welding gun or the lifting plate 2 collides with the buffer plate, the welding gun and the lifting plate 2 rotate to an inclined state to reduce the damage to the welding gun and the lifting plate 2 caused by the collision. After the fixed plate moves outward, the spring 2 can pull the plate body 4 and the welding gun back to their original positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention; Figure 2 It is a structural schematic diagram of a hydraulic telescopic unit of the present invention; Figure 3 It is a schematic diagram of a structure of a frame of the present invention; Figure 4 It is a structural schematic diagram of a movable plate of the present invention; Figure 5 It is a schematic diagram of the second structure of the plate body of the present invention; Figure 6 It is a structural schematic diagram of a lifting plate of the present invention; Figure 7 It is a schematic diagram of the structure of the rotating plate of the present invention; Figure 8 It is a schematic diagram of the movable ring structure of the present invention; Fig. 9 It is a schematic diagram of the water tank structure of the present invention; Fig.10 The figure is a flow chart of the welding method of the present invention.

[0023] In the figure: 1, plate body 1; 2, control unit; 3, support; 4, hydraulic telescopic unit 1; 5, frame body 1; 6, electric telescopic unit 1; 7, moving plate 1; 8, block; 9, rotating rod; 10, electric telescopic unit 2; 11, fixed block; 12, tube body 1; 13, tube body 2; 14, plate body 2; 15, electric telescopic unit 3; 16, fixed plate; 17, pressure sensing unit; 18, plate body 3; 19, spring 1; 2 0. Buffer plate; 21. Frame; 22. Hydraulic telescopic unit 2; 23. Lifting plate 1; 24. Motor; 25. Rotating plate; 26. Electric telescopic unit 4; 27. Cylindrical block; 28. Movable ring; 29. ​​Plate 4; 30. Electric telescopic unit 5; 31. Lifting plate 2; 32. Welding gun; 33. Camera; 34. Plate 5; 35. Spring 2; 36. Water tank; 37. Vacuum pump; 38. Pipeline 1; 39. Pipeline 2. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 an indirect connection 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.

[0027] See also Figure 1 , Figure 2 , Figure 3 and Figure 5, an embodiment provided by the present invention: an automatic welding system for pipe intersection lines; The invention comprises a plate body 1, a hydraulic telescopic unit 4 and a buffer mechanism, a control unit 2 is installed on the top of the plate body 1, a plurality of pillars 3 are symmetrically installed on the bottom of the plate body 1, a plurality of hydraulic telescopic units 4 are installed on the bottom of the plate body 1, and the hydraulic telescopic units 4 are connected to the control unit 2 by electrical signals, a frame body 5 is installed on the output end of the hydraulic telescopic unit 4, a plate body 2 14 is symmetrically installed on the top of the frame body 5, an electric telescopic unit 3 15 is installed on one side of the plate body 2 14, and the electric telescopic unit 3 15 is connected to the control unit 2 by electrical signals, a fixing plate 16 is installed on the output end of the electric telescopic unit 3 15, and a pipe body 12 is installed on the inner side of the frame body 5 , a tube body 2 13 is installed on the top of the tube body 12, and buffer mechanisms are symmetrically arranged on both sides of the fixed plate 16. The buffer mechanism includes a pressure sensing unit 17, a plate body 3 18, a spring 19 and a buffer plate 20. Pressure sensing units 17 are symmetrically installed on both sides of the fixed plate 16, and the pressure sensing units 17 are connected to the control unit 2 by electrical signals. A plate body 3 18 is installed at the input end of the pressure sensing unit 17, and a plurality of springs 19 are installed on one side of the plate body 3 18. A buffer plate 20 is installed at one end of the spring 19. The plate body 1 can provide an installation position for other components of the device, so that other components of the device have a position to be installed. The control unit 2 is a controller. It can receive signals from the pressure sensing unit 17 and the camera 33, and can control the hydraulic telescopic unit 14, the electric telescopic unit 16, the electric telescopic unit 2 10, the electric telescopic unit 3 15, the hydraulic telescopic unit 22, the motor 24, the electric telescopic unit 4 26, the electric telescopic unit 5 30 and the vacuum pump 37. The support 3 can support the plate body 1. The hydraulic telescopic unit 14 is a hydraulic cylinder that can convert hydraulic energy into kinetic energy, thereby driving the frame body 15 to move up and down. The frame body 15 can provide a placement position for the tube body 12. The plate body 2 14 can provide an installation position for the electric telescopic unit 3 15. The electric telescopic unit 3 15 is The electric telescopic rod can convert electrical energy into kinetic energy, thereby driving the fixed plate 16 to move left and right. The fixed plate 16 can fix the tube body 13 by moving inward. The tube body 12 and the tube body 13 are workpieces that need to be welded in an intersecting state. The pressure sensing unit 17 is a pressure sensor, which can detect the pressure from the plate body 3 18. The plate body 3 18 can provide an installation position for the spring 19. The spring 19 can buffer the impact on the buffer plate 20 and transmit the pressure on the buffer plate 20 to the plate body 3 18. The buffer plate 20 can transmit the pressure from the welding gun 32 and the lifting plate 2 31 to the spring 19.

[0028] See also Figure 1 , Figure 6 , Figure 7 and Figure 8, an embodiment provided by the present invention: an automatic welding system for pipe intersection lines; The welding machine comprises a frame 21 and a welding mechanism, wherein the frame 21 is installed on the top of the plate body 1, and a hydraulic telescopic unit 22 is installed on the top of the frame 21, and the hydraulic telescopic unit 22 is connected to the control unit 2 by electrical signals, and a welding mechanism is arranged at the output end of the hydraulic telescopic unit 22, and the welding mechanism comprises a lifting plate 1 23, a motor 24, a rotating plate 25, an electric telescopic unit 4 26, a cylindrical block 27, a movable ring 28, a plate body 4 29, an electric telescopic unit 5 30, a lifting plate 2 31 and a welding gun 32, and the top of the lifting plate 1 23 is connected to the output end of the hydraulic telescopic unit 22, and a motor is installed at the bottom of the lifting plate 1 23 24, and the motor 24 is connected to the control unit 2 by electrical signals, a rotating plate 25 is installed at the output end of the motor 24, an electric telescopic unit 26 is installed at the bottom of the rotating plate 25, and the electric telescopic unit 26 is connected to the control unit 2 by electrical signals, a cylindrical block 27 is installed at the output end of the electric telescopic unit 26, a movable ring 28 is movably installed on the outer side of the cylindrical block 27, a plate body 29 is installed on the back side of the movable ring 28, an electric telescopic unit 5 30 is installed on the back side of the plate body 29, and the electric telescopic unit 5 30 is connected to the control unit 2 by electrical signals, a lifting plate 2 31 is installed at the output end of the electric telescopic unit 5 30, and the lifting plate 2 31 is installed at the output end of the electric telescopic unit 5 A welding gun 32 is installed at the bottom of the lowering plate 21, and the frame 21 can provide an installation position for the hydraulic telescopic unit 22. The hydraulic telescopic unit 22 is a hydraulic cylinder that can convert hydraulic energy into kinetic energy, thereby driving the lifting plate 1 23 to move up and down. The lifting plate 1 23 can drive the welding gun 32 to move up and down by moving up and down. The motor 24 can convert electrical energy into kinetic energy, thereby driving the rotating plate 25 to rotate. The rotating plate 25 can drive the electric telescopic unit 4 26 and the welding gun 32 to rotate by rotating, so that the welding gun 32 can perform surrounding welding on the pipe body 12 and the pipe body 2 13. The electric telescopic unit 4 26 is an electric telescopic The retractable rod can convert electrical energy into kinetic energy, thereby driving the cylindrical block 27 to move forward and backward. The cylindrical block 27 can drive the movable ring 28, the plate body four 29 and the welding gun 32 to move forward and backward by moving forward and backward. The movable ring 28 plays a role in movably connecting the cylindrical block 27 and the plate body four 29. The plate body four 29 can provide an installation position for the electric telescopic unit five 30. The electric telescopic unit five 30 is an electric telescopic rod, which can convert electrical energy into kinetic energy, thereby driving the lifting plate two 31 to move up and down. The lifting plate two 31 can drive the welding gun 32 to move up and down by moving up and down. The welding gun 32 can weld the pipe body one 12 and the pipe body two 13.

[0029] See also Figure 1 , Figure 3 and Figure 4 , an embodiment provided by the present invention: an automatic welding system for pipe intersection lines; The electric telescopic unit 16 and the electric telescopic unit 2 10 are included. The electric telescopic unit 16 is symmetrically installed on both sides of the frame 15, and the electric telescopic unit 16 is connected to the control unit 2 by electrical signals. The output end of the electric telescopic unit 16 is installed with a moving plate 7, and the moving plate 7 is located on the inner side of the frame 15. A block 8 is symmetrically installed on one side of the moving plate 7, and a rotating rod 9 is movably installed on the inner side of the block 8. The electric telescopic unit 2 10 is installed on one side of the moving plate 7, and the electric telescopic unit 2 10 is connected to the control unit 2 by electrical signals. The output end of the electric telescopic unit 2 10 is installed with a fixed block 11, and the fixed block 11 is located on the inner side of the rotating rod 9. The electric telescopic unit 16 It is an electric telescopic rod, which can convert electrical energy into kinetic energy, thereby driving the movable plate 7 to move left and right. The movable plate 7 can drive the block 8 and the rotating rod 9 to move left and right by moving left and right. The block 8 can provide an installation position for the rotating rod 9. The rotating rod 9 can squeeze and limit the tube body 12. At the same time, the rotating rod 9 can rotate, so that the tube body 12 squeezed and fixed by the rotating rod 9 can rotate, which is convenient for people to process the top opening of the tube body 12 to align with the port of the tube body 2 13. The electric telescopic unit 2 10 is an electric telescopic rod, which can convert electrical energy into kinetic energy, thereby driving the fixed block 11 to move left and right. The fixed block 11 can fix the tube body 12 by moving inward.

[0030] See also Figure 1 , Figure 6 and Figure 7 , an embodiment provided by the present invention: an automatic welding system for pipe intersection lines; It includes a plate body 5 34 and a camera 33. The plate body 5 34 is symmetrically installed on both sides of the rotating plate 25. A spring 2 35 is installed on the back of the plate body 5 34, and one end of the spring 2 35 is connected to the front of the plate body 4 29. The camera 33 is installed at the bottom of the plate body 4 29, and the camera 33 is electrically connected to the control unit 2. The plate body 5 34 can provide an installation position for the spring 2 35. The spring 2 35 can apply a pulling force to the plate body 4 29 to return the inclined plate body 4 29 to a vertical state. The camera 33 can record the welding condition of the welding gun 32.

[0031] See also Figure 1 and Fig. 9 , an embodiment provided by the present invention: an automatic welding system for pipe intersection lines; It includes a water tank 36, the water tank 36 is installed on the top of the plate body 1, and an air pump 37 is installed on the top of the water tank 36, and the air pump 37 is connected to the control unit 2 by electrical signals, a pipe 1 38 is installed at the input end of the air pump 37, and one end of the pipe 1 38 passes through the top inner wall of the water tank 36, a pipe 2 39 is installed at the output end of the air pump 37, and one end of the pipe 2 39 is located in front of the pipe body 2 13, the water tank 36 can store water, so that it can absorb the smoke and dust in the water entering the water tank 36, the part of the pipe 1 38 located in the water tank 36 is provided with a plurality of holes, so that the gas in the pipe 1 38 can be dispersed in the water tank 36 in the form of small bubbles, the air pump 37 can convert electrical energy into kinetic energy, so as to suck the smoke and dust around the welding gun 32 into the water tank 36, and the pipe 2 39 can provide a transmission path for the smoke and dust around the welding gun 32 to enter the air pump 37.

[0032] The welding method of the pipe intersection automatic welding system is as follows: S1, place the tube body 12 horizontally on the inner side of the frame body 1 5, place the tube body 2 13 vertically on the top of the tube body 12, and move the fixing plate 16 inward to clamp the tube body 2 13; S2, then align the opening on the top of the second tube body 13 with the bottom port of the first tube body 12, and then move the moving plate 1 7 inward to allow the rotating rod 9 to clamp the first tube body 12; S3, the fixing block 11 is moved inward to squeeze and fix the tube body 1 12, the hydraulic expansion unit 2 22 drives the welding gun 32 to move downward, the welding gun 32 welds the contact part of the tube body 1 12 and the tube body 2 13, and the motor 24 drives the welding gun 32 to rotate to perform circumferential welding on the contact part of the tube body 1 12 and the tube body 2 13; S4, when the welding gun 32 or the lifting plate 2 31 contacts the buffer plate 20, the spring 19 buffers the impact of the buffer plate 20 to reduce the damage to the welding gun 32, and at the same time, the pressure sensing unit 17 detects the pressure, and the welding gun 32 and the motor 24 stop working; S5. Then the electric telescopic unit 3 15 drives the fixed plate 16 to move outward and no longer contacts the tube body 12. Then the spring 2 35 pulls the plate body 4 29 and the welding gun 32 back to their original positions. Then the welding gun 32 continues welding.

[0033] S3 also includes the following steps: S31, the vacuum pump 37 sucks the smoke around the welding gun 32 into the water tank 36, and the water in the water tank 36 absorbs the smoke.

[0034] Working principle: Before using the automatic welding system for pipe intersection lines, you should first check whether there are any problems that affect the use of the automatic welding system for pipe intersection lines. Place the pipe body 12 horizontally on the inner side of the frame body 15, and place the pipe body 2 13 vertically on the top of the pipe body 12. Move the fixing plate 16 inward to clamp the pipe body 2 13, and then align the position with the opening on the top of the pipe body 2 13 with the bottom port of the pipe body 12. Then move the moving plate 17 inward to make the rotating rod 9 clamp the pipe body 12, and move the fixing block 11 inward to squeeze and fix the pipe body 12. The hydraulic telescopic unit 22 drives the welding gun 32 to move downward, and the welding gun 32 presses the contact part between the pipe body 12 and the pipe body 2 13. During welding, the motor 24 drives the welding gun 32 to rotate to perform circumferential welding on the contact part of the tube body 12 and the tube body 2 13, and the vacuum pump 37 sucks the smoke around the welding gun 32 into the water tank 36, and the water in the water tank 36 absorbs the smoke. When the welding gun 32 or the lifting plate 2 31 contacts the buffer plate 20, the spring 19 buffers the impact of the buffer plate 20 to reduce the damage to the welding gun 32. At the same time, the pressure sensing unit 17 detects the pressure, the welding gun 32 and the motor 24 stop working, and then the electric telescopic unit 3 15 drives the fixed plate 16 to move outward and no longer contacts the tube body 12, and then the spring 2 35 pulls the plate body 4 29 and the welding gun 32 back to their original positions, and then the welding gun 32 continues to weld.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference signs in the claims should not be regarded as limiting the rights involved.

Claims

1. An automatic welding system for pipe intersection, characterized in that: The invention comprises a plate body 1 (1), a hydraulic telescopic unit 1 (4) and a frame body (21), wherein a control unit (2) is mounted on the top of the plate body 1 (1), a plurality of hydraulic telescopic units 1 (4) are mounted on the bottom of the plate body 1 (1), and the hydraulic telescopic unit 1 (4) is electrically connected to the control unit (2), a frame body 1 (5) is mounted on the output end of the hydraulic telescopic unit 1 (4), a plate body 2 (14) is symmetrically mounted on the top of the frame body 1 (5), an electric telescopic unit 3 (15) is mounted on one side of the plate body 2 (14), and the electric telescopic unit 3 (15) is electrically connected to the control unit (2), a fixing plate (16) is mounted on the output end of the electric telescopic unit 3 (15), a tube body 1 (12) is mounted on the inner side of the frame body 1 (5), a tube body 2 (13) is mounted on the top of the tube body 1 (12), and buffer mechanisms are symmetrically arranged on both sides of the fixing plate (16); A frame (21) is installed on the top of the plate body 1 (1), a hydraulic telescopic unit 2 (22) is installed on the top of the frame (21), and the hydraulic telescopic unit 2 (22) is connected to the control unit (2) via an electrical signal, and a welding mechanism is provided at the output end of the hydraulic telescopic unit 2 (22).

2. The pipe intersection automatic welding system according to claim 1 is characterized in that: A plurality of pillars (3) are symmetrically mounted on the bottom of the plate body 1 (1).

3. The pipe intersection automatic welding system according to claim 1 is characterized in that: Electric telescopic units (6) are symmetrically mounted on both sides of the frame (5), and the electric telescopic units (6) are electrically connected to the control unit (2). A movable plate (7) is mounted on the output end of the electric telescopic unit (6), and the movable plate (7) is located on the inner side of the frame (5). A block (8) is symmetrically mounted on one side of the movable plate (7), and a rotating rod (9) is movably mounted on the inner side of the block (8).

4. The pipe intersection automatic welding system according to claim 3 is characterized by: An electric telescopic unit 2 (10) is installed on one side of the movable plate 1 (7), and the electric telescopic unit 2 (10) is connected to the control unit (2) via electrical signals. A fixed block (11) is installed at the output end of the electric telescopic unit 2 (10), and the fixed block (11) is located on the inner side of the rotating rod (9).

5. The pipe intersection automatic welding system according to claim 1 is characterized in that: The buffer mechanism comprises a pressure sensing unit (17), a plate body three (18), a spring one (19) and a buffer plate (20); the pressure sensing units (17) are symmetrically mounted on both sides of the fixed plate (16); the pressure sensing units (17) are electrically connected to the control unit (2); the input end of the pressure sensing unit (17) is mounted with a plate body three (18); one side of the plate body three (18) is mounted with a plurality of springs one (19); and one end of the spring one (19) is mounted with the buffer plate (20).

6. The pipe intersection automatic welding system according to claim 1 is characterized in that: The welding mechanism comprises a lifting plate 1 (23), a motor (24), a rotating plate (25), an electric telescopic unit 4 (26), a cylindrical block (27), a movable ring (28), a plate body 4 (29), an electric telescopic unit 5 (30), a lifting plate 2 (31) and a welding gun (32). The top of the lifting plate 1 (23) is connected to the output end of the hydraulic telescopic unit 2 (22). The bottom of the lifting plate 1 (23) is equipped with a motor (24), and the motor (24) is connected to the control unit (2) by electrical signals. The output end of the motor (24) is equipped with a rotating plate (25), and the bottom of the rotating plate (25) is equipped with an electric A telescopic unit four (26) is provided, and the electric telescopic unit four (26) is connected to the control unit (2) by electrical signals. A cylindrical block (27) is installed at the output end of the electric telescopic unit four (26). A movable ring (28) is movably installed on the outer side of the cylindrical block (27). A plate body four (29) is installed on the back of the movable ring (28). An electric telescopic unit five (30) is installed on the back of the plate body four (29). The electric telescopic unit five (30) is connected to the control unit (2) by electrical signals. A lifting plate two (31) is installed at the output end of the electric telescopic unit five (30). A welding gun (32) is installed at the bottom of the lifting plate two (31).

7. The pipe intersection automatic welding system according to claim 6, characterized in that: Plate bodies five (34) are symmetrically mounted on both sides of the rotating plate (25), springs two (35) are mounted on the back of plate bodies five (34), and one end of springs two (35) is connected to the front of plate bodies four (29), a camera (33) is mounted on the bottom of plate bodies four (29), and the camera (33) is connected to the control unit (2) via electrical signals.

8. The pipe intersection automatic welding system according to claim 1 is characterized in that: A water tank (36) is installed on the top of the plate body 1 (1), an air pump (37) is installed on the top of the water tank (36), and the air pump (37) is connected to the control unit (2) by electrical signals; a pipe 1 (38) is installed on the input end of the air pump (37), and one end of the pipe 1 (38) passes through the inner wall of the top of the water tank (36); a pipe 2 (39) is installed on the output end of the air pump (37), and one end of the pipe 2 (39) is located in front of the pipe body 2 (13).

9. A welding method for a pipe intersection automatic welding system according to any one of claims 1 to 8, characterized in that: The welding method of the pipe intersection automatic welding system is as follows: S1. Place the tube body 1 (12) horizontally on the inner side of the frame body 1 (5), place the tube body 2 (13) vertically on the top of the tube body 1 (12), and move the fixing plate (16) inward to clamp the tube body 2 (13); S2, then align the opening at the top of the second tube body (13) with the bottom port of the first tube body (12), and then move the first moving plate (7) inward to allow the rotating rod (9) to clamp the first column tube body (12); S3, the fixing block (11) is moved inward to squeeze and fix the tube body 1 (12), the hydraulic telescopic unit 2 (22) drives the welding gun (32) to move downward, the welding gun (32) welds the contact portion between the tube body 1 (12) and the tube body 2 (13), and at the same time, the motor (24) drives the welding gun (32) to rotate to perform circumferential welding on the contact portion between the tube body 1 (12) and the tube body 2 (13); S4, when the welding gun (32) or the second lifting plate (31) contacts the buffer plate (20), the first spring (19) buffers the impact of the buffer plate (20) to reduce damage to the welding gun (32), and at the same time, the pressure sensing unit (17) detects the pressure, and the welding gun (32) and the motor (24) stop working; S5. Then, the electric telescopic unit three (15) drives the fixed plate (16) to move outward and no longer contact the tube body one (12). Then, the spring two (35) pulls the plate body four (29) and the welding gun (32) back to their original positions. Then, the welding gun (32) continues to weld.

10. The welding method of the pipe intersection automatic welding system according to claim 9, characterized in that: The S3 also includes the following steps: S31, the vacuum pump (37) sucks the smoke and dust around the welding gun (32) into the water tank (36), and the water in the water tank (36) absorbs the smoke and dust.

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