Metal pipeline welding device and method

Abstract

The invention discloses a metal pipeline welding device and method, and relates to the technical field of metal pipe machining equipment.The metal pipeline welding device comprises a metal pipe, a limiting assembly is arranged in an inner cavity of the metal pipe, and the pipeline connecting position is limited through the limiting assembly; according to the metal pipeline welding device and method, when a metal pipe is welded, the whole adjusting assembly is placed in an inner cavity of the arc-shaped metal pipe, the angle is adjusted, the two ends of the adjusting assembly are located at the two end openings of the arc-shaped metal pipe correspondingly, the adjusting assembly is matched with the limiting assembly to be in butt joint with the arc-shaped metal pipe, and the adjusting assembly and the limiting assembly form a whole; and meanwhile, the inner walls of the two metal pipes for welding are fixed through the limiting assemblies, so that shaking is avoided during welding, and the overall welding quality is improved.

Description

Technical Field

[0001] The invention relates to metal pipe processing equipment technology, and in particular to a metal pipe welding device and method. Background Art

[0002] Welding tooling is an indispensable process equipment in the large-scale welding production process. It can ensure the relative position of welding, and plays an important role in improving labor productivity, reducing labor production intensity, and improving quality accuracy. At present, it can be classified according to the power source, mainly divided into pneumatic tooling, electric tooling and hybrid power tooling. In the daily welding construction process of ordinary metal pipes or seamless steel pipes, various welding methods such as butt welding and circular welding of seamless steel pipes require that the interface surfaces of the two seamless steel pipes to be welded are flush and the center lines of the steel pipes are aligned.

[0003] At present, metal pipe welding usually adopts a semi-automatic welding method, that is, two metal pipes are respectively installed in the structure of two fixed pipes, and after manually locking the metal pipes and manually butting the metal pipes, the device is started to automatically rotate the two metal pipes and weld along the butt joint. Although this semi-automatic welding method can butt-weld two metal pipes, during the welding process, due to the manual fixing of the metal pipes and the manual butt joint of the metal pipes, the metal pipes are easily tilted during the fixing process, resulting in uneven butt joints, and the butt joints are easily deviated from the welding position due to the inconsistent butt movement distances of the metal pipes on both sides, making it difficult for the welding device to weld evenly in the middle of the butt joint of the metal pipes.

[0004] A Chinese invention patent with publication number CN114871614A discloses a metal pipe welding device and a welding method thereof. The metal pipe welding device and the welding method thereof, through the lifting block, drives the seesaw to squeeze the clamping device inward due to the lever action, so that the clamping device rotates inward to clamp the metal pipe, and can realize the function of automatic clamping and fixing after the metal pipe is placed, thereby improving the automation degree of the metal welding device; by utilizing the lever principle, the clamping device can be clamped at a relatively large rotation angle, and can realize the fixing of metal pipes of different specifications, thereby improving the adaptability of the device.

[0005] The existing metal pipe welding device cannot realize the function of automatic clamping and fixing after the metal pipe is placed, and cannot meet the fixation of metal pipes of different specifications. The adaptability of the device is low, and the fixation of the metal pipe cannot be conveniently released. At the same time, when facing an arc pipe, it cannot be stably fixed, which causes the welding part to be misaligned during subsequent welding, thereby affecting the quality of the entire metal pipe. In order to solve this problem, a metal pipe welding device and method have been developed. Summary of the invention

[0006] The object of the present invention is to provide a metal pipe welding device and method to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a metal pipe welding device, comprising a metal pipe, wherein the inner cavity of the metal pipe is provided with a limiting component, and the pipe connection is limited by the limiting component;

[0008] An adjusting component is assembled inside the metal pipe, and the end of the adjusting component is connected to the limiting component, so that the pipe bend is fixed by the adjusting component;

[0009] Wherein, the adjustment assembly comprises an adjustment member, telescopic rods are rotatably mounted at both ends of the adjustment member, spheres are arranged at the ends of the two telescopic rods that are away from each other, and protective tubes are arranged on the outer surfaces of the two spheres;

[0010] A fixing plate is provided at one end of the protective tube away from the spherical body, a groove is provided on one side of the fixing plate, a positioning rod is slidably installed on the inner wall of the groove, a limiting plate is rotatably installed on the outer surface of the positioning rod, and positioning blocks are rotatably installed on the outer surface of the positioning rod and located on both sides of the limiting plate, a sliding groove is provided on one side of the positioning block, a fixing rod is slidably installed on the inner wall of the sliding groove, and both ends of the fixing rod are connected to the inner wall of the fixing plate;

[0011] A limiting groove is provided on one side of the limiting plate away from the positioning rod, a limiting rod is slidably mounted on the inner wall of the limiting groove, and both ends of the limiting rod are connected to the inner wall of the fixing plate;

[0012] A movable rod is rotatably mounted at the middle position of the outer surface of the limiting plate, a pressing plate is rotatably mounted at the end of the movable rod, and the end of the pressing plate is fitted with the limiting assembly.

[0013] As a further optimization solution of the present invention, a hole is provided on the outer surface of the movable rod, and an elastic member is provided in the inner cavity of the hole.

[0014] As a further optimization solution of the present invention, the inner wall of the hole is slidably connected to the outer surface of the end of the pressing plate, and the upper end of the elastic member is connected to the outer surface of the pressing plate.

[0015] As a further optimization scheme of the present invention, the limiting assembly includes a driving member, a driving shaft is provided at the output end of the driving member, a supporting member is provided on the outer surface of the driving shaft, and the supporting member includes a rotating block connected to the end of the driving member.

[0016] As a further optimization scheme of the present invention, a plurality of groups of rotating rods are arranged on the outer surface of the rotating block, and the plurality of groups of rotating rods are evenly distributed on the outer surface of the rotating block, and a baffle is arranged on one end of each rotating rod away from the rotating block.

[0017] As a further optimization solution of the present invention, a gear plate is rotatably mounted on the outer surface of the driving shaft and located on one side of the rotating block, and a gear rod corresponding to the rotating rod is rotatably mounted on the outer surface of the gear plate.

[0018] As a further optimization solution of the present invention, a movable block is rotatably mounted on the outer surface of the gear rod, and the outer surface of the rotating rod is slidably connected to the inner wall of the movable block.

[0019] As a further optimization solution of the present invention, a clamping block is provided at the end of the movable block, and the cross section of the clamping block is fan-shaped.

[0020] As a further optimization solution of the present invention, an adjustment block is provided at one end of the gear plate away from the gear rod, and the inner wall of the adjustment block is meshed with the outer surface of the drive shaft;

[0021] A power piece is arranged at one end of the gear plate, and an output end of the power piece is connected to an end of the regulating block. Meanwhile, a docking block is arranged at one end of the driving shaft away from the driving piece.

[0022] A metal pipeline welding method comprises the following steps:

[0023] S1. Place the pipes to be welded at designated locations according to actual needs;

[0024] S2. Supporting the inner wall of the pipeline by the limiting component and the adjusting component;

[0025] S3. Butt the two pipes that need to be welded together and weld them.

[0026] Compared with the prior art, the metal pipe welding device and method provided by the present invention have the following beneficial effects: the adjusting member is composed of a cylinder, two cylinders and two connecting blocks, one end of the connecting block is connected to the end of the cylinder, and the outer surfaces of the two cylinders are slidably connected to the inner wall of the cylinder. When in use, the cylinder is pulled so that the end of the cylinder is flush with the cylinder, so that the telescopic rod rotatably installed on the connecting block can be rotated, thereby meeting the requirements of different sizes, so that when welding, the overall condition after welding can be checked in advance, which is convenient for subsequent adjustments.

[0027] When welding the metal pipe, the entire adjustment component is placed in the inner cavity of the arc-shaped metal pipe, and the angle is adjusted so that the two ends of the adjustment component are respectively located at the two ends of the arc-shaped metal pipe, and the limiting component is used to dock with it so that the adjustment component and the limiting component become a whole. At the same time, the inner walls of the two metal pipes for welding are fixed by the limiting component so that no shaking occurs during welding, thereby improving the overall welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0029] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0030] Figure 2 A schematic diagram of the structure of a limit assembly and an adjustment assembly provided in an embodiment of the present invention;

[0031] Figure 3 A first schematic diagram of a limit assembly structure provided by an embodiment of the present invention;

[0032] Figure 4 A second schematic diagram of a limit assembly structure provided by an embodiment of the present invention;

[0033] Figure 5 A schematic diagram of the structure of a drive shaft and an adjustment block provided in an embodiment of the present invention;

[0034] Figure 6 A cross-sectional view of the internal structure of the drive shaft and the adjustment block provided in an embodiment of the present invention;

[0035] Figure 7 A schematic diagram of the structure of an adjustment component provided in an embodiment of the present invention;

[0036] Figure 8 A cross-sectional view of the internal structure of the adjustment component provided by an embodiment of the present invention;

[0037] Fig. 9 The present invention provides an overall flow chart of the embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1. Metal tube; 2. Limiting assembly; 3. Adjusting assembly; 21. Driving member; 22. Support member; 23. Rotating block; 231. Rotating rod; 232. Baffle; 24. Gear plate; 25. Gear rod; 26. Movable block; 261. Clamping block; 271. Driving shaft; 272. Adjusting block; 273. Power member; 28. Docking block; 31. Adjusting member; 32. Telescopic rod; 33. Sphere; 34. Protective tube; 35. Fixed plate; 351. Groove; 36. Positioning block; 361. Slide groove; 362. Fixed rod; 37. Limiting plate; 371. Limiting groove; 372. Limiting rod; 373. Positioning rod; 38. Movable rod; 381. Hole; 382. Elastic member; 383. Pressing plate. DETAILED DESCRIPTION

[0040] 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.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Embodiment 1:

[0043] See also Figure 1-Figure 8 A metal pipe welding device and method include a metal pipe 1. The inner cavity of the metal pipe 1 is provided with a limiting component 2, and the pipe connection is limited by the limiting component 2.

[0044] The adjusting component 3 is assembled inside the metal pipe 1 , and the end of the adjusting component 3 is connected to the limiting component 2 , so that the bending part of the pipe is fixed by the adjusting component 3 .

[0045] The adjusting assembly 3 comprises an adjusting member 31 , telescopic rods 32 are rotatably mounted at both ends of the adjusting member 31 , spheres 33 are disposed at the ends of the two telescopic rods 32 away from each other, and protective tubes 34 are disposed on the outer surfaces of the two spheres 33 .

[0046] In this solution, the adjusting member 31 is composed of a cylinder, two cylinders and two connecting blocks. One end of the connecting block is connected to the end of the cylinder, and the outer surfaces of the two cylinders are slidably connected to the inner wall of the cylinder. When in use, the cylinder is pulled so that the end of the cylinder is flush with the cylinder, so that the telescopic rod 32 rotatably mounted on the connecting block can be rotated, thereby meeting the requirements of different sizes.

[0047] By fitting the sphere 33 and the protection tube 34 , the angle of the protection tube 34 can be adjusted until it reaches an optimal state.

[0048] Furthermore, a fixing plate 35 is provided at one end of the protective tube 34 away from the sphere 33, a groove 351 is provided on one side of the fixing plate 35, a positioning rod 373 is slidably installed on the inner wall of the groove 351, a limiting plate 37 is rotatably installed on the outer surface of the positioning rod 373, and positioning blocks 36 are rotatably installed on the outer surface of the positioning rod 373 and on both sides of the limiting plate 37, a sliding groove 361 is provided on one side of the positioning block 36, a fixing rod 362 is slidably installed on the inner wall of the sliding groove 361, and both ends of the fixing rod 362 are connected to the inner wall of the fixing plate 35. A limiting groove 371 is provided on one side of the limiting plate 37 away from the positioning rod 373, a limiting rod 372 is slidably installed on the inner wall of the limiting groove 371, and both ends of the limiting rod 372 are connected to the inner wall of the fixing plate 35.

[0049] Specifically, when the positioning rod 373 moves downward, it synchronously drives the positioning block 36 and the limit plate 37 installed on its outer surface to move, wherein the positioning block 36 is synchronously limited by the fixed rod 362, so that when the positioning block 36 is subjected to force, it rotates around the fixed rod 362. At the same time, a protrusion is provided at the end of the positioning block 36. When the positioning block 36 rotates around the fixed rod 362, the protrusion slowly flips upward until it is engaged with the component at the upper end.

[0050] The limit plate 37 is limited by the limit rod 372, so that when the limit plate 37 is moved by force, the limit plate 37 rotates around the limit rod 372, and then cooperates with the positioning block 36 to limit the component to ensure the overall stability of the component, where the component is the docking block 28.

[0051] Furthermore, a movable rod 38 is rotatably mounted at the middle position of the outer surface of the limiting plate 37 , a pressing plate 383 is rotatably mounted at the end of the movable rod 38 , and the end of the pressing plate 383 is fitted with the limiting assembly 2 .

[0052] The outer surface of the movable rod 38 is provided with a hole 381, and the inner cavity of the hole 381 is provided with an elastic member 382. The inner wall of the hole 381 is slidably connected to the outer surface of the end of the pressing plate 383, and the upper end of the elastic member 382 is connected to the outer surface of the pressing plate 383.

[0053] Specifically, when the docking block 28 is fitted with the pressing plate 383, the movable rod 28 is pressed synchronously, so that the limit plate 37 rotatably connected to the movable rod 38 moves downward and drives the positioning block 36 to flip, so that the docking block 38 is stably in the specified position.

[0054] The elastic member 382 is an elastic component such as a spring, and is used to further support the pressing plate 383 .

[0055] Furthermore, the limiting assembly 2 includes a driving member 21 , a driving shaft 271 is disposed at the output end of the driving member 21 , a supporting member 22 is disposed on the outer surface of the driving shaft 271 , and the supporting member 22 includes a rotating block 23 connected to the end of the driving member 21 .

[0056] A plurality of rotating rods 231 are disposed on the outer surface of the rotating block 23 , and the plurality of rotating rods 231 are evenly distributed on the outer surface of the rotating block 23 . A baffle 232 is disposed at one end of each rotating rod 231 away from the rotating block 23 .

[0057] In this embodiment, the driving member 21 is a device with power output such as a motor, and is connected to an external control device, so that when the driving member 21 is started, it synchronously drives the driving shaft 271 arranged at its output end to rotate.

[0058] The rotating rod 231 disposed on the outer surface of the rotating block 23 cooperates with the baffle 232 to limit the movement track of the movable block 26, so that the movable block 26 will not deviate from the predetermined track when moving.

[0059] The control device can select a single-chip microcomputer as the control end. In this embodiment, the single-chip microcomputer is a typical embedded microcontroller (Micro controller Unit), which is composed of an arithmetic unit, a controller, a memory, an input and output device, etc., which is equivalent to a microcomputer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes self-supply (no external hardware) and cost saving. Its biggest advantage is that it is small in size and can be placed inside the instrument, but has a small storage capacity, a simple input and output interface, and low functional consumption.

[0060] Furthermore, a gear plate 24 is installed on the outer surface of the driving shaft 271 and located on one side of the rotating block 23, and a gear rod 25 corresponding to the rotating rod 231 is installed on the outer surface of the gear plate 24. A movable block 26 is installed on the outer surface of the gear rod 25, and the outer surface of the rotating rod 231 is slidably connected to the inner wall of the movable block 26.

[0061] Specifically, when the gear plate 24 rotates, the gear rod 25 is synchronously driven to rotate, wherein the outer surface of the gear rod 25 is provided with a thread, so that when the gear rod 25 rotates, the movable block 26 installed on the gear rod 25 is driven to move up and down. At the same time, a guide hole is opened at one end of the movable block 26, and the inner wall of the guide hole is slidably connected to the outer surface of the rotating rod 231, so that when the movable block 26 moves, the whole remains stable.

[0062] Furthermore, a clamping block 261 is provided at the end of the movable block 26 , and the cross section of the clamping block 261 is fan-shaped.

[0063] Specifically, when the movable block 26 moves, it synchronously drives the clamping block 261 set at its end to move. Since the cross-section of the clamping block 261 is fan-shaped, the clamping block 261 ensures the stability of the metal tube 1 after it fits against the inner wall of the metal tube 1, so that no shaking occurs during welding.

[0064] The outer surface of the clamping block 261 is provided with a component having an anti-slip function such as rubber.

[0065] Furthermore, an adjustment block 272 is provided at one end of the gear plate 24 away from the gear rod 25, and the inner wall of the adjustment block 272 is meshed with the outer surface of the driving shaft 271;

[0066] A power piece 273 is disposed at one end of the gear plate 24 , and an output end of the power piece 273 is connected to an end of the adjustment block 272 . Meanwhile, a docking block 28 is disposed at one end of the driving shaft 271 away from the driving piece 21 .

[0067] Specifically, the power piece 273 is a device with a telescopic function such as an electric telescopic rod, and is connected to an external control device, so that when the power piece 273 is started, it can drive the adjustment block 272 to move, so that the inner wall of the adjustment block 272 engages with the outer surface of the drive shaft 271, wherein the outer surface of the drive shaft 271 close to one end of the adjustment block 272 is provided with a tooth block for engaging with the inner wall of the adjustment block 272.

[0068] When welding the metal tube 1, the entire adjustment component 3 is placed in the inner cavity of the arc-shaped metal tube 1, and the angle is adjusted so that the two ends of the adjustment component 3 are respectively located at the two ends of the arc-shaped metal tube 1, and the limiting component 2 is matched to dock with it so that the adjustment component 3 and the limiting component 2 become a whole. At the same time, the inner walls of the two metal tubes 1 for welding are fixed by the limiting component 2 so that no shaking occurs during welding.

[0069] Embodiment 2:

[0070] See also Fig. 9 , a metal pipeline welding method, comprising the following steps:

[0071] S1. Place the pipes to be welded at designated locations according to actual needs;

[0072] S2, supporting the inner wall of the pipeline through the limit component 2 and the adjustment component 3;

[0073] S3. Butt the two pipes that need to be welded together and weld them.

[0074] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A metal pipe welding device, characterized in that: It comprises a metal pipe (1), wherein the inner cavity of the metal pipe (1) is provided with a limiting component (2), and the pipe connection is limited by the limiting component (2); An adjusting component (3) is assembled inside the metal pipe (1), and an end of the adjusting component (3) is connected to the limiting component (2), so that the bending part of the pipe is fixed by the adjusting component (3); The adjustment assembly (3) comprises an adjustment member (31), telescopic rods (32) are rotatably mounted at both ends of the adjustment member (31), spheres (33) are arranged at the ends of the two telescopic rods (32) that are away from each other, and protective tubes (34) are arranged on the outer surfaces of the two spheres (33); A fixing plate (35) is provided at one end of the protective tube (34) away from the spherical body (33), a groove (351) is provided on one side of the fixing plate (35), a positioning rod (373) is slidably installed on the inner wall of the groove (351), a limiting plate (37) is rotatably installed on the outer surface of the positioning rod (373), and positioning blocks (36) are rotatably installed on the outer surface of the positioning rod (373) and located on both sides of the limiting plate (37), a sliding groove (361) is provided on one side of the positioning block (36), a fixing rod (362) is slidably installed on the inner wall of the sliding groove (361), and both ends of the fixing rod (362) are connected to the inner wall of the fixing plate (35); A limiting groove (371) is provided on a side of the limiting plate (37) away from the positioning rod (373); a limiting rod (372) is slidably mounted on the inner wall of the limiting groove (371); and both ends of the limiting rod (372) are connected to the inner wall of the fixing plate (35); A movable rod (38) is rotatably mounted at the middle position of the outer surface of the limit plate (37), a pressing plate (383) is rotatably mounted at the end of the movable rod (38), and the end of the pressing plate (383) is fitted with the limit assembly (2).

2. A metal pipe welding device according to claim 1, characterized in that: The outer surface of the movable rod (38) is provided with a hole (381), and the inner cavity of the hole (381) is provided with an elastic member (382).

3. A metal pipe welding device according to claim 2, characterized in that: The inner wall of the hole (381) is slidably connected to the outer surface of the end of the pressing plate (383), and the upper end of the elastic member (382) is connected to the outer surface of the pressing plate (383).

4. A metal pipe welding device according to claim 1, characterized in that: The limiting assembly (2) comprises a driving member (21), the output end of the driving member (21) is provided with a driving shaft (271), the outer surface of the driving shaft (271) is provided with a supporting member (22), and the supporting member (22) comprises a rotating block (23) connected to the end of the driving member (21).

5. A metal pipe welding device according to claim 4, characterized in that: The outer surface of the rotating block (23) is provided with a plurality of groups of rotating rods (231), and the plurality of groups of rotating rods (231) are evenly distributed on the outer surface of the rotating block (23), and a baffle (232) is provided at one end of each rotating rod (231) away from the rotating block (23).

6. A metal pipe welding device according to claim 5, characterized in that: A gear plate (24) is rotatably mounted on the outer surface of the driving shaft (271) and located on one side of the rotating block (23), and a gear rod (25) corresponding to the rotating rod (231) is rotatably mounted on the outer surface of the gear plate (24).

7. A metal pipe welding device according to claim 6, characterized in that: A movable block (26) is rotatably mounted on the outer surface of the gear rod (25), and the outer surface of the rotating rod (231) is slidably connected to the inner wall of the movable block (26).

8. A metal pipe welding device according to claim 7, characterized in that: A clamping block (261) is provided at the end of the movable block (26), and the cross section of the clamping block (261) is fan-shaped.

9. A metal pipe welding device according to claim 8, characterized in that: An adjustment block (272) is provided at one end of the gear plate (24) away from the gear rod (25), and an inner wall of the adjustment block (272) is meshed with an outer surface of the drive shaft (271); A power piece (273) is provided at one end of the gear plate (24), and an output end of the power piece (273) is connected to the end of the adjustment block (272). Meanwhile, a docking block (28) is provided at one end of the drive shaft (271) away from the drive piece (21).

10. A metal pipe welding method, characterized in that: The following steps are involved: S1. Place the pipes to be welded at designated locations according to actual needs; S2, supporting the inner wall of the pipeline by means of the limiting component (2) and the adjusting component (3); S3. Butt the two pipes that need to be welded together and weld them.

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