Automatic pipeline welding equipment

Abstract

The utility model relates to the technical field of machining, and discloses an automatic pipeline welding device which comprises a base, two clamping rings are arranged on the upper surface of the base respectively, clamping cavities are formed in the two clamping rings, clamping assemblies are arranged in the two clamping rings, and the clamping assemblies are arranged in the clamping cavities. Two beam rods are symmetrically and fixedly installed on the surface of the clamping ring on the left side, and fixing rings are arranged on the surfaces of the two beam rods. During welding, the electric push rod is controlled to extend, so that the auxiliary abutting wheel abuts against the surface of the pipeline all the time, certain pressure is kept, the welding gun is used for welding the surface of the pipeline, the rotating ring is driven by the gear motor to rotate, and the purpose of rotating and continuously welding the pipeline is achieved; stretching and retracting of the electric push rod are automatically controlled according to the extrusion force detected by the pressure sensor, so that the distance between the welding gun and the outer wall of the pipeline can be kept, the purpose of rotary connection welding of pipelines with different diameters is achieved, and the applicability is high.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, and more specifically to an automatic pipe welding device. Background Technology

[0002] A pipeline is a device made up of pipes, pipe fittings, valves, etc., used to transport gas, liquid, or fluids containing solid particles. Pipelines have a wide range of uses, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering, and various industrial installations. When extending pipelines, welding equipment can be used to weld the pipes and fittings.

[0003] A search revealed an existing patent (publication number: CN222269194U) that discloses an automatic welding device for oil pipelines. During operation, a walking component drives the welding torch to revolve around a displacement ring plate, while a stabilizing component guides the U-shaped plate along a predetermined path to prevent deviation. This allows for automatic welding and improved efficiency. However, the inventors discovered the following problems with the existing technology during the development of this invention: The aforementioned automatic pipeline welding device places the pipeline on an arc-shaped support plate for support and positioning, then uses an electric telescopic rod to drive a clamping block to clamp the pipeline, and then drives the welding torch to rotate around the pipeline for rotary welding. Due to the pipeline support method, the center height of the pipeline varies when welding pipelines of different diameters. In this case, because the rotation path of the welding torch is fixed, it is difficult for the torch to maintain a distance from the outer wall of the pipeline during rotation, making it difficult to perform rotary welding on pipelines of different diameters, resulting in poor applicability.

[0004] In view of this, the present invention proposes an automatic pipe welding device to solve this problem. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic pipe welding device to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: an automatic pipe welding device, including a base, two clamping rings are respectively provided on the upper surface of the base, each clamping ring has a clamping cavity inside, and a clamping component is provided inside the two clamping rings. Two beams are symmetrically fixedly installed on the surface of the left clamping ring, and a fixing ring is provided on the surface of the two beams. A rotary welding component is provided on the surface of the fixing ring.

[0007] The rotary welding assembly includes a rotating ring rotatably connected to the right end of a fixed ring. A reduction motor for driving the rotating ring to rotate is embedded in the right end of the fixed ring. A connecting plate is fixedly installed on the surface of the rotating ring. A rectangular tube is fixedly installed at the bottom end of the connecting plate. A rectangular slide rod is slidably connected to the bottom end of the rectangular tube. An extension frame is fixedly installed on the surface of the rectangular slide rod. An electric push rod is fixedly installed on the inner wall of the rectangular tube. A pressure sensor is fixedly installed at the telescopic end of the electric push rod. The sensing end of the pressure sensor corresponds to the end position of the rectangular slide rod. A welding gun is embedded in the surface of the extension frame, and an auxiliary clamping wheel is provided at the bottom end of the extension frame.

[0008] As a further description of the above technical solution: the clamping assembly includes a hydraulic rod embedded in the top of the clamping ring, the telescopic end of the hydraulic rod extends into the interior of the clamping cavity and is fixedly installed with a clamping plate, and two pillow plates are symmetrically fixedly installed on the inner wall of the clamping ring, with the positions of the clamping plate and the pillow plates corresponding to each other.

[0009] As a further description of the above technical solution: two balance slide rods are symmetrically fixedly installed on the surface of the clamping plate, and the balance slide rods are slidably connected to the surface of the clamping ring; by setting the balance slide rods, the stability of the clamping plate during lifting and moving can be ensured.

[0010] As a further description of the above technical solution: a driving gear is fixedly installed on the output shaft surface of the geared motor, and a driven gear ring is fixedly installed on the surface of the rotating ring, with the driving gear and the driven gear ring meshing with each other.

[0011] As a further description of the above technical solution: the fixing ring is slidably connected to the surface of the beam, and the surface of the fixing ring is threaded with a positioning screw. The surface of the beam has several positioning holes arranged in a linear array, and the threaded end of the positioning screw is engaged in one of the positioning holes. By sliding the fixing ring to the surface of the beam, after aligning and fixing the two pipe sections, the fixing ring can be slid according to the position of the alignment point, and then the positioning screw can be engaged in the positioning hole for positioning, so as to make adaptive adjustments to the position of the welding gun, which is convenient to use.

[0012] As a further description of the above technical solution: the clamping ring on the right is movably installed on the surface of the base. Two supporting slide rods are symmetrically fixedly installed on the surface of the base. The clamping ring on the right is slidably connected to the surface of the supporting slide rods. A hydraulic jack is fixedly installed on the surface of the base. The telescopic end of the hydraulic jack is fixed to the right end face of the clamping ring on the right. The clamping ring on the right is slidably connected to the surface of the supporting slide rod. After clamping and aligning the two pipe sections, by controlling the extension of the hydraulic jack, the ends of the two pipe sections can be further tightened, improving the tightness of the pipes and thus further improving the quality of pipe welding.

[0013] As a further description of the above technical solution: a control panel is fixedly mounted on the surface of the clamping ring on the left side.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. Compared with existing technologies, this automatic pipe welding equipment inserts two pipes into two clamping rings and aligns them. Then, the hydraulic rod extends to clamp the pipes. During welding, the electric push rod extends to keep the auxiliary clamping wheel pressed against the pipe surface and maintain a certain pressure. The welding torch is used to weld the pipe surface, and the rotating ring is driven by a geared motor to achieve continuous rotary welding of the pipe. During the rotation, the extension and retraction of the electric push rod are automatically controlled according to the pressure sensor to maintain the distance between the welding torch and the outer wall of the pipe. This equipment is suitable for rotary connection welding of pipes of different diameters and has strong applicability.

[0016] 2. Compared with existing technologies, this automatic pipe welding equipment, by setting a balance slide bar, can ensure the stability of the clamping plate during lifting and moving; by using a fixing ring slidably connected to the surface of the beam rod, after aligning and fixing two pipe sections, the fixing ring can be slid according to the alignment point, and then the positioning screw can be used to lock into the positioning hole for positioning, so as to adaptively adjust the position of the welding gun, which is convenient to use; by using a clamping ring slidably connected to the surface of the support slide bar on the right side, after clamping and aligning two pipe sections, by controlling the extension of the hydraulic push rod, the ends of the two pipe sections can be further tightened, improving the tightness of the pipes, thereby further improving the quality of pipe welding. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention from one perspective;

[0018] Figure 2 This is a two-dimensional structural schematic diagram of the present invention from a different perspective;

[0019] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a cross-sectional view of the rectangular tube structure of this utility model.

[0021] The attached diagram is labeled as follows: 1. Base; 2. Clamping ring; 3. Beam rod; 4. Fixing ring; 5. Rotary ring; 6. Gear motor; 7. Connecting plate; 8. Rectangular cylinder; 9. Rectangular slide rod; 10. Extension frame; 11. Electric push rod; 12. Pressure sensor; 13. Welding torch; 14. Auxiliary clamping wheel; 15. Hydraulic rod; 16. Clamping plate; 17. Pillow plate; 18. Balance slide rod; 19. Drive gear; 20. Driven gear ring; 21. Positioning screw; 22. Positioning hole; 23. Support slide rod; 24. Hydraulic push rod; 25. Control panel. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The automatic pipe welding equipment involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Reference Figures 1 to 4 This utility model provides an automatic pipe welding device, including a base 1, and two clamping rings 2 are respectively provided on the upper surface of the base 1.

[0024] A control panel 25 is fixedly mounted on the surface of the left clamping ring 2.

[0025] Both clamping rings 2 have clamping cavities inside, and clamping components are provided inside the two clamping rings 2.

[0026] The clamping assembly includes a hydraulic rod 15 embedded in the top of the clamping ring 2. The telescopic end of the hydraulic rod 15 extends into the interior of the clamping cavity and is fixedly installed with a clamping plate 16. Two pillow plates 17 are symmetrically fixedly installed on the inner wall of the clamping ring 2, and the positions of the clamping plate 16 and the pillow plates 17 correspond to each other.

[0027] The automatic pipe welding equipment inserts two pipes into the two clamping rings 2 respectively and aligns them. The pipes are placed on the surface of the pillow plate 17, and then the hydraulic rod 15 is extended to drive the clamping plate 16 to clamp and fix the pipes.

[0028] Two balance slide rods 18 are symmetrically fixedly installed on the surface of the clamping plate 16, and the balance slide rods 18 are slidably connected to the surface of the clamping ring 2.

[0029] By setting the balance slide bar 18, the stability of the clamping plate 16 during lifting and lowering can be ensured.

[0030] The right clamping ring 2 is movably installed on the surface of the base 1. Two support slide rods 23 are symmetrically fixedly installed on the surface of the base 1. The right clamping ring 2 is slidably connected to the surface of the support slide rods 23. A hydraulic push rod 24 is fixedly installed on the surface of the base 1. The telescopic end of the hydraulic push rod 24 is fixed to the right end face of the right clamping ring 2. The right clamping ring 2 and the beam rod 3 are slidably connected.

[0031] Furthermore, by sliding the right clamping ring 2 onto the surface of the support slide rod 23, after clamping and aligning the two pipe sections, the extension of the hydraulic push rod 24 can further tighten the ends of the two pipe sections, increasing the tightness of the pipes and thus improving the quality of subsequent pipe welding.

[0032] Two beams 3 are symmetrically fixedly installed on the surface of the left clamping ring 2. Fixing rings 4 are provided on the surface of the two beams 3, and rotating welding components are provided on the surface of the fixing rings 4.

[0033] The rotary welding assembly includes a rotating ring 5 rotatably connected to the right end of a fixed ring 4, and a geared motor 6 for driving the rotating ring 5 to rotate is embedded in the right end of the fixed ring 4.

[0034] A drive gear 19 is fixedly mounted on the output shaft surface of the geared motor 6, and a driven gear ring 20 is fixedly mounted on the surface of the rotating ring 5. The drive gear 19 and the driven gear ring 20 mesh with each other.

[0035] A connecting plate 7 is fixedly installed on the surface of the rotating ring 5. A rectangular tube 8 is fixedly installed at the bottom end of the connecting plate 7. A rectangular slide rod 9 is slidably connected to the bottom end of the rectangular tube 8. An extension frame 10 is fixedly installed on the surface of the rectangular slide rod 9. An electric push rod 11 is fixedly installed on the inner wall of the rectangular tube 8. A pressure sensor 12 is fixedly installed at the telescopic end of the electric push rod 11. The sensing end of the pressure sensor 12 corresponds to the end position of the rectangular slide rod 9. A welding gun 13 is embedded on the surface of the extension frame 10, and an auxiliary clamping wheel 14 is provided at the bottom end of the extension frame 10. The position of the welding gun 13 is adapted to the position of the auxiliary clamping wheel 14.

[0036] When welding pipes, the extension of the electric push rod 11 is controlled to keep the auxiliary clamping wheel 14 pressed against the pipe surface and maintain a certain pressure. The welding torch 13 is used to perform welding on the pipe surface, and the rotating ring 5 is driven to rotate by the reduction motor 6 to achieve the purpose of continuous rotational welding of the pipe. During the rotation, the extension and retraction of the electric push rod 11 is automatically controlled according to the magnitude of the extrusion pressure detected by the pressure sensor 12, so as to maintain the distance between the welding torch 13 and the outer wall of the pipe. It can be used to complete the rotational connection welding of pipes with different diameters, and has strong applicability.

[0037] It is worth noting that, due to the constraints of pipeline installation, the welding torch 13 can only complete a single rotation and cannot perform continuous multi-rotation actions.

[0038] The fixing ring 4 is slidably connected to the surface of the beam 3, and the surface of the fixing ring 4 is threaded with a positioning screw 21. The surface of the beam 3 is provided with a number of positioning holes 22 in a straight array, and the threaded end of the positioning screw 21 is engaged in one of the positioning holes 22.

[0039] Furthermore, by sliding the fixing ring 4 onto the surface of the beam 3, after aligning and fixing the two pipe sections, the fixing ring 4 can be slid according to the position of the alignment point, and then the positioning screw 21 can be inserted into the positioning hole 22 for positioning, so as to make adaptive adjustments to the position of the welding gun 13, which is convenient to use.

[0040] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. An automatic pipe welding device, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with two clamping rings (2), and each clamping ring (2) has a clamping cavity. The clamping ring (2) is provided with a clamping assembly. Two beam rods (3) are symmetrically fixedly installed on the surface of the left clamping ring (2). The surface of the two beam rods (3) is provided with a fixing ring (4). The surface of the fixing ring (4) is provided with a rotary welding assembly. The rotary welding assembly includes a rotating ring (5) rotatably connected to the right end of a fixed ring (4). A geared motor (6) for driving the rotating ring (5) to rotate is embedded in the right end of the fixed ring (4). A connecting plate (7) is fixedly installed on the surface of the rotating ring (5). A rectangular tube (8) is fixedly installed at the bottom end of the connecting plate (7). A rectangular slide rod (9) is slidably connected to the bottom end of the rectangular tube (8). An extension frame (10) is fixedly installed on the surface of the rectangular slide rod (9). An electric push rod (11) is fixedly installed on the inner wall of the rectangular tube (8). A pressure sensor (12) is fixedly installed at the telescopic end of the electric push rod (11). The sensing end of the pressure sensor (12) corresponds to the end position of the rectangular slide rod (9). A welding gun (13) is embedded in the surface of the extension frame (10), and an auxiliary clamping wheel (14) is provided at the bottom end of the extension frame (10).

2. The automatic pipe welding equipment according to claim 1, characterized in that: The clamping assembly includes a hydraulic rod (15) embedded in the top of the clamping ring (2). The telescopic end of the hydraulic rod (15) extends into the interior of the clamping cavity and is fixedly installed with a clamping plate (16). Two pillow plates (17) are symmetrically fixedly installed on the inner wall of the clamping ring (2). The positions of the clamping plate (16) and the pillow plates (17) correspond to each other.

3. The automatic pipe welding equipment according to claim 2, characterized in that: Two balance slide rods (18) are symmetrically fixedly installed on the surface of the clamping plate (16), and the balance slide rods (18) are slidably connected to the surface of the clamping ring (2).

4. The automatic pipe welding equipment according to claim 1, characterized in that: The output shaft surface of the geared motor (6) is fixedly mounted with a drive gear (19), and the surface of the rotating ring (5) is fixedly mounted with a driven gear ring (20). The drive gear (19) and the driven gear ring (20) mesh with each other.

5. The automatic pipe welding equipment according to claim 1, characterized in that: The fixing ring (4) is slidably connected to the surface of the beam (3), and the surface of the fixing ring (4) is threaded with a positioning screw (21). The surface of the beam (3) is provided with a number of positioning holes (22) in a straight line array. The threaded end of the positioning screw (21) is engaged in one of the positioning holes (22) corresponding to the position.

6. The automatic pipe welding equipment according to claim 1, characterized in that: The clamping ring (2) on the right is movably installed on the surface of the base (1). Two support slide rods (23) are symmetrically fixed on the surface of the base (1). The clamping ring (2) on the right is slidably connected to the surface of the support slide rod (23). A hydraulic push rod (24) is fixedly installed on the surface of the base (1). The telescopic end of the hydraulic push rod (24) is fixed to the right end face of the clamping ring (2) on the right. The clamping ring (2) on the right is slidably connected to the beam rod (3).

7. The automatic pipe welding equipment according to claim 1, characterized in that: A control panel (25) is fixedly mounted on the surface of the clamping ring (2) on the left.

Images