Steel pipe seam welding device

Abstract

The present invention discloses a steel pipe seam welding device, which relates to the technical field of welding equipment. The device comprises a base, wherein a positioning assembly is provided at the upper end of the base, and the steel pipe is limited by the positioning assembly. When an electric telescopic rod is started, the steel pipe seam welding device drives a movable block provided at its output end to move, wherein the positioning block is rotatably mounted on the movable block, and a clamping piece or other fixing component is provided at the end of the positioning block, so that the positioning block can remain stable when it rotates. At the same time, the outer surface of the positioning block is provided with positioning grooves of different sizes, and positioning grooves of different specifications are adjusted according to actual conditions. The steel pipe is limited in a staggered manner, thereby ensuring the overall stability of the steel pipe.

Description

Technical Field

[0001] The invention relates to welding equipment technology, in particular to a steel pipe seam welding device. Background Art

[0002] As one of the key equipment in the large-diameter straight seam welded pipe production line, the existing common steel pipe seaming machine uses a downward hydraulic cylinder to abut the weld above the steel pipe and clamping hydraulic cylinders on both sides to abut and fix the steel pipe, thereby performing steel pipe seam welding.

[0003] The Chinese invention patent with publication number CN116984823B discloses a device for welding the seams of electric steel pipes. During the steel pipe transportation process, two limiting rollers in a group can rotate to convert sliding friction into rolling friction. This can reduce the damping of the conveying unit during the steel pipe transportation process. On the other hand, the rolling friction avoids significant wear of the mobile positioning mechanism, thereby increasing the service life of the mobile positioning mechanism. It also avoids the wear of the mobile positioning mechanism causing left and right deviations after the steel pipe gap is closed, which affects the welding of the steel pipe gap by the welding mechanism. The two limiting rollers of the limiting part are staggered so that they overlap, causing the limiting area of the entire limiting frame to approach the diameter of one limiting roller. While both limiting rollers can rotate, the thickness of the mobile positioning mechanism is minimized to improve the positioning effect of the mobile positioning mechanism.

[0004] When using existing equipment, two clamping hydraulic cylinders are used to clamp and fix the two sides of the steel pipe respectively, so as to weld the steel pipe together. However, during the welding process, uneven temperature and welding stress may cause the steel pipe to deform. Especially when welding larger-sized pipes, local bending or warping may occur, affecting the docking accuracy and welding quality. At the same time, during the pushing process of the steel pipe during welding, displacement, vibration or offset is likely to occur, thereby affecting the welding quality. Therefore, a steel pipe seam welding device has been developed. Summary of the Invention

[0005] The object of the present invention is to provide a steel pipe seam welding device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a steel pipe seam welding device, comprising a base, wherein a positioning assembly is provided at the upper end of the base, and the steel pipe is limited by the positioning assembly;

[0007] The positioning assembly includes a driving member connected to the base, and a fixing block is provided on the upper end of the base and on both sides of the driving member, and a sliding groove is provided on the side of the fixing block close to the driving member;

[0008] The output end of the driving member is provided with a push block, and both ends of the push block are provided with push rods, the outer surface of the push rod is slidably connected to the inner wall of the slide groove, and the outer surface of the push rod and the inner wall of the fixed block are provided with an adjustment block, and the end of the adjustment block is provided with a sphere;

[0009] A bottom plate is provided on one side of the base, and a plurality of grooves are provided on the upper end of the bottom plate, and the plurality of grooves are evenly distributed on the upper end of the bottom plate. At the same time, a movable block is slidably installed on the inner wall of each groove, and a positioning block is rotatably installed on the upper end of the movable block. The outer surface of the positioning block is provided with a positioning groove, and the steel pipe is limited by the positioning groove;

[0010] A support column is slidably installed at the end of the base plate, and a guide groove is provided at one end of the support column close to the base plate. At the same time, a limiting component is slidably installed on the inner wall of the guide groove, and the steel pipe is pre-fixed before welding through the limiting component.

[0011] As a further optimization scheme of the present invention, the limiting assembly includes a fixed plate slidably connected to the inner wall of the guide groove, a power part is provided at the end of the fixed plate, and the output end of the power part passes through and extends to the other end of the fixed plate, and the output end of the power part is provided with a first turntable and a second turntable.

[0012] As a further optimization scheme of the present invention, a first movable groove is opened at the end of the first turntable, and a rotating block is rotatably installed at the end of the fixed plate and located at the upper end of the first turntable. A slider is provided at the end of the rotating block, and the outer surface of the slider is slidably connected to the inner wall of the first movable groove.

[0013] As a further optimization solution of the present invention, limiting blocks are symmetrically provided at the ends of the fixing plate, and an adjustment plate is slidably mounted on the outer surface of the limiting blocks.

[0014] As a further optimization scheme of the present invention, a guide block is provided on the upper end of the adjustment plate, and a moving block is slidably installed on the outer surface of the guide block. At the same time, a limiting groove is opened at the end of the moving block, and an extrusion block is provided at the end of the moving block.

[0015] As a further optimization solution of the present invention, the cross section of the rotating block is Y-shaped, and a swing rod is provided at the end of the rotating block, and the outer surface of the swing rod is slidably connected to the inner wall of the limiting groove.

[0016] As a further optimization solution of the present invention, a rotating block is rotatably mounted on the end of the fixed plate, and a driving block is provided at one end of the rotating block and a clamping block is provided at the other end.

[0017] As a further optimized solution of the present invention, a second movable groove is formed at the end of the second turntable, and the inner wall of the second movable groove is slidably connected to the outer surface of the driving block.

[0018] As a further optimization solution of the present invention, a clamping block is slidably mounted on the end of the fixing plate, and the end of the clamping block extends to the lower end of the fixing plate, and the cross section of the clamping block is L-shaped.

[0019] As a further optimization solution of the present invention, a through hole is provided at the end of the clamping block, and the inner wall of the through hole is slidably connected to the outer surface of the clamping block.

[0020] Compared with the prior art, the steel pipe seam welding device provided by the present invention has the following beneficial effects: when the electric telescopic rod is started, the movable block arranged at its output end is driven to move, wherein the positioning block is rotatably installed on the movable block, and at the same time, the end of the positioning block is provided with a clamping member or other fixing components, so that the positioning block can remain stable when it rotates; at the same time, the outer surface of the positioning block is provided with positioning grooves of different sizes, and positioning grooves of different specifications are adjusted according to actual conditions. The steel pipe is limited in a staggered manner, thereby ensuring the overall stability of the steel pipe.

[0021] When the rotating block moves, it synchronously drives the swing rod set at its end to move. Since the outer surface of the swing rod is slidably connected with the inner wall of the limit groove, when the swing rod moves, the moving block is driven to move on the outer surface of the guide block, driving the extrusion block to limit the steel pipe, wherein the outer surface of the extrusion block is provided with rubber and other anti-slip components to ensure that it remains stable when welding the steel pipe; when the clamping block moves, it cooperates with the through hole to push the clamping block to move, thereby limiting the steel pipe, so that the whole remains stable when welding the steel pipe, and when the steel pipe is assembled, the steel pipe is pre-fixed by the limit assembly, which facilitates the adjustment of the steel pipe and keeps the subsequent welding smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0024] Figure 2 A cross-sectional view of the overall internal structure provided by an embodiment of the present invention;

[0025] Figure 3A first schematic diagram of the positioning assembly structure provided by an embodiment of the present invention;

[0026] Figure 4 A second schematic diagram of the positioning assembly structure provided by an embodiment of the present invention;

[0027] Figure 5 A first schematic diagram of the structure of a position limiting assembly provided in an embodiment of the present invention;

[0028] Figure 6 A second schematic diagram of the limit assembly structure provided by an embodiment of the present invention;

[0029] Figure 7 A first cross-sectional view of the internal structure of a position limiting assembly provided in an embodiment of the present invention;

[0030] Figure 8 This is a second cross-sectional view of the internal structure of the limiting assembly provided in an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. Base; 2. Positioning assembly; 3. Limiting assembly; 11. Support column; 12. Guide groove; 21. Driving member; 22. Fixed block; 23. Slide groove; 24. Push block; 25. Push rod; 26. Adjusting block; 27. Sphere; 28. Bottom plate; 281. Groove; 29. Movable block; 291. Positioning block; 292. Positioning groove; 31. Fixed plate; 311. Limiting block; 312. Adjusting plate; 32. Power member; 33. First turntable; 331. First movable groove; 34. Second turntable; 341. Second movable groove; 35. Rotating block; 351. Slider; 352. Swinging rod; 36. Guide block; 361. Moving block; 362. Limiting groove; 363. Extruding block; 37. Rotating block; 371. Driving block; 372. Clamping block; 38. Clamping block; 381. Through hole. DETAILED DESCRIPTION

[0033] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example: See Figures 1-8 A steel pipe seam welding device includes a base 1, and a positioning component 2 is provided at the upper end of the base 1, and the steel pipe is limited by the positioning component 2.

[0036] The positioning assembly 2 includes a driving member 21 connected to the base 1 , and a fixing block 22 is provided on the upper end of the base 1 and on both sides of the driving member 21 . A sliding groove 23 is provided on one side of the fixing block 22 close to the driving member 21 .

[0037] In this embodiment, the driving member 21 is a device with a telescopic function such as an electric telescopic rod, and is connected to an external control device. When the driving member 21 is started, it synchronously drives the push block 24 provided at its output end to move.

[0038] Furthermore, a push block 24 is provided at the output end of the driving member 21, and push rods 25 are provided at both ends of the push block 24. The outer surface of the push rod 25 is slidably connected to the inner wall of the slide groove 23. An adjustment block 26 is provided on the outer surface of the push rod 25 and located on the inner wall of the fixed block 22, and a sphere 27 is provided at the end of the adjustment block 26.

[0039] Specifically, when the push block 24 moves, it synchronously drives the push rods 25 arranged at both ends thereof to move, wherein the outer surface of the push rod 25 is slidably connected to the inner wall of the slide groove 23, thereby preventing the push rod 25 from offsetting during movement. At the same time, the push rod 25 drives the adjustment block 26 to move, and cooperates with the sphere 27 to detect the welding point of the steel pipe. Before welding, the gap is calibrated and the warping of the welding point is detected. After welding, the welding condition of the welding position is detected, thereby ensuring the accuracy of the overall welding.

[0040] Furthermore, a bottom plate 28 is provided on one side of the base 1, and a plurality of groups of grooves 281 are provided on the upper end of the bottom plate 28, and the plurality of groups of grooves 281 are evenly distributed on the upper end of the bottom plate 28. At the same time, a movable block 29 is slidably installed on the inner wall of each groove 281, and a positioning block 291 is rotatably installed on the upper end of the movable block 29. A positioning groove 292 is provided on the outer surface of the positioning block 291, and the steel pipe is limited by the positioning groove 292.

[0041] Specifically, the inner wall of the groove 281 is provided with a device with a telescopic function, such as an electric telescopic rod, and is connected to an external control device. At the same time, when the electric telescopic rod is started, the movable block 29 arranged at its output end is driven to move, wherein the positioning block 291 is rotatably installed on the movable block 29, and at the same time, the end of the positioning block 291 is provided with a clamping member or other fixing component, so that the positioning block 291 can remain stable when rotating.

[0042] At the same time, the outer surface of the positioning block 291 is provided with positioning grooves 292 of different sizes. The positioning grooves 292 of different specifications are adjusted according to actual conditions, and the steel pipe is limited in a staggered manner, thereby ensuring the overall stability of the steel pipe.

[0043] Furthermore, a support column 11 is slidably installed at the end of the base plate 28, and a guide groove 12 is opened at one end of the support column 11 close to the base plate 28. At the same time, a limiting component 3 is slidably installed on the inner wall of the guide groove 12, and the steel pipe is pre-fixed by the limiting component 3 before welding.

[0044] Specifically, the outer surface of the support column 11 is slidably connected to one side of the bottom plate 28, so that the position of the support column 11 can be adjusted according to actual conditions to make it suitable for the current scene.

[0045] At the same time, an electric telescopic rod or other equipment with telescopic function is provided on the inner wall of the guide groove 12 and is connected to the external control device, and the output end of the electric telescopic rod is connected to the limit assembly 3, thereby driving the limit assembly 3 to move up and down until it reaches the optimal position and stops.

[0046] Furthermore, the limiting assembly 3 includes a fixed plate 31 slidably connected to the inner wall of the guide groove 12, and a power piece 32 is provided at the end of the fixed plate 31, and the output end of the power piece 32 passes through and extends to the other end of the fixed plate 31. At the same time, the output end of the power piece 32 is provided with a first turntable 33 and a second turntable 34.

[0047] In this embodiment, the power member 32 is a device with power output such as a motor, and is connected to an external control device. When the power member 32 is started, it synchronously drives the first turntable 33 and the second turntable 34 arranged at its output end to rotate, wherein the first turntable 33 and the second turntable 34 rotate synchronously.

[0048] Furthermore, a first movable groove 331 is opened at the end of the first turntable 33, and a rotating block 35 is rotatably installed at the end of the fixed plate 31 and located at the upper end of the first turntable 33. A slider 351 is provided at the end of the rotating block 35, and the outer surface of the slider 351 is slidably connected to the inner wall of the first movable groove 331.

[0049] Specifically, when the first turntable 33 rotates, the first movable groove 331 drives the slider 351 slidably installed on its inner wall to move. Since the end of the slider 351 is connected to the rotating block 35, the rotating block 35 rotates around the connection with the fixed plate 31.

[0050] Furthermore, the fixed plate 31 is symmetrically provided with a limit block 311 at its end, and an adjustment plate 312 is slidably mounted on the outer surface of the limit block 311. A guide block 36 is provided at the upper end of the adjustment plate 312, and a movable block 361 is slidably mounted on its outer surface. A limit slot 362 is defined at the end of the movable block 361, and a squeeze block 363 is provided at the end of the movable block 361. The rotating block 35 has a Y-shaped cross section, and a swinging rod 352 is provided at its end, with the outer surface of the swinging rod 352 slidably connected to the inner wall of the limit slot 362.

[0051] Specifically, the position of the moving block 361 is adjusted by moving the adjustment plate 312 on the limit block 311 to make it suitable for steel pipes of different sizes. The outer surface of the adjustment plate 312 is provided with fixing components such as pins, so that the adjustment plate 312 remains stable after moving.

[0052] When the rotating block 35 moves, it synchronously drives the swing rod 352 set at its end to move. Since the outer surface of the swing rod 352 is slidingly connected to the inner wall of the limiting groove 362, when the swing rod 352 moves, the moving block 361 is driven to move on the outer surface of the guide block 36, driving the extrusion block 363 to limit the steel pipe. The outer surface of the extrusion block 363 is provided with rubber or other anti-slip components to ensure stability when welding the steel pipe.

[0053] Furthermore, a rotating block 37 is rotatably mounted on the end of the fixed plate 31. One end of the rotating block 37 is provided with a driving block 371, and the other end is provided with a clamping block 372. A second movable groove 341 is defined at the end of the second rotating disk 34. The inner wall of the second movable groove 341 is slidably connected to the outer surface of the driving block 371.

[0054] Specifically, when the second turntable 34 rotates, the second movable slot 341 drives the driving block 371 to move. Since the driving block 371 is connected to the rotating block 37, the driving block 371 rotates around the connection between the rotating block 37 and the fixed plate 31, and simultaneously drives the clamping block 372 set at the other end of the rotating block 37 to move.

[0055] Furthermore, a clamping block 38 is slidably mounted on the end of the fixing plate 31, and the end of the clamping block 38 extends to the lower end of the fixing plate 31. The cross-section of the clamping block 38 is L-shaped. A through hole 381 is formed at the end of the clamping block 38, and the inner wall of the through hole 381 is slidably connected to the outer surface of the clamping block 372.

[0056] Specifically, when the clamping block 372 moves, the through hole 381 cooperates to push the clamping block 38 to move, thereby limiting the steel pipe so that the whole remains stable when the steel pipe is welded, and when the steel pipe is assembled, the steel pipe is pre-fixed by the limiting component 3, thereby facilitating the adjustment of the steel pipe and ensuring smooth subsequent welding.

[0057] The control device can be a single-chip microcomputer (MCU). In this embodiment, the MCU is a typical embedded microcontroller (MCU), consisting of an arithmetic unit (ALU), a controller, memory, and input / output devices, equivalent to a miniature computer. Compared to the general-purpose microprocessors used in personal computers, it emphasizes self-sufficiency (no external hardware required) and cost savings. Its greatest advantages are its small size, allowing it to be placed inside the instrument, low memory capacity, simple input / output interfaces, and low power consumption.

[0058] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A steel pipe seam welding device, characterized in that: It comprises a base (1), wherein a positioning assembly (2) is provided at the upper end of the base (1), and the steel pipe is limited by the positioning assembly (2); The positioning assembly (2) comprises a driving member (21) connected to the base (1), a fixing block (22) is provided at the upper end of the base (1) and on both sides of the driving member (21), and a sliding groove (23) is provided on a side of the fixing block (22) close to the driving member (21); The output end of the driving member (21) is provided with a push block (24), and both ends of the push block (24) are provided with push rods (25), the outer surface of the push rod (25) is slidably connected to the inner wall of the slide groove (23), and the outer surface of the push rod (25) and the inner wall of the fixed block (22) are provided with an adjustment block (26), and the end of the adjustment block (26) is provided with a ball (27); A bottom plate (28) is provided on one side of the base (1), and a plurality of grooves (281) are provided on the upper end of the bottom plate (28), and the plurality of grooves (281) are evenly distributed on the upper end of the bottom plate (28), and a movable block (29) is slidably installed on the inner wall of each groove (281), and a positioning block (291) is rotatably installed on the upper end of the movable block (29), and a positioning groove (292) is provided on the outer surface of the positioning block (291), and the steel pipe is limited by the positioning groove (292); A support column (11) is slidably mounted on the end of the base plate (28), and a guide groove (12) is provided at one end of the support column (11) close to the base plate (28). At the same time, a limiting component (3) is slidably mounted on the inner wall of the guide groove (12), and the steel pipe is pre-fixed before welding by the limiting component (3).

2. A steel pipe seam welding device according to claim 1, characterized in that: The limiting assembly (3) comprises a fixed plate (31) slidably connected to the inner wall of the guide groove (12); a power member (32) is provided at the end of the fixed plate (31); and an output end of the power member (32) passes through and extends to the other end of the fixed plate (31); and a first turntable (33) and a second turntable (34) are provided at the output end of the power member (32).

3. The steel pipe seam welding device according to claim 2, characterized in that: A first movable groove (331) is provided at the end of the first rotating disk (33), and a rotating block (35) is rotatably installed at the end of the fixed plate (31) and located at the upper end of the first rotating disk (33). A slider (351) is provided at the end of the rotating block (35), and the outer surface of the slider (351) is slidably connected to the inner wall of the first movable groove (331).

4. The steel pipe seam welding device according to claim 3, characterized in that: A limiting block (311) is symmetrically provided at the end of the fixing plate (31), and an adjusting plate (312) is slidably mounted on the outer surface of the limiting block (311).

5. The steel pipe seam welding device according to claim 4, characterized in that: A guide block (36) is provided at the upper end of the adjustment plate (312), and a moving block (361) is slidably mounted on the outer surface of the guide block (36). A limiting groove (362) is provided at the end of the moving block (361), and an extrusion block (363) is provided at the end of the moving block (361).

6. The steel pipe seam welding device according to claim 5, characterized in that: The cross section of the rotating block (35) is Y-shaped, and a swing rod (352) is provided at the end of the rotating block (35), and the outer surface of the swing rod (352) is slidably connected to the inner wall of the limiting groove (362).

7. The steel pipe seam welding device according to claim 6, characterized in that: A rotating block (37) is rotatably mounted on the end of the fixed plate (31), and one end of the rotating block (37) is provided with a driving block (371), and the other end is provided with a clamping block (372).

8. The steel pipe seam welding device according to claim 7, characterized in that: A second movable groove (341) is provided at the end of the second rotating disk (34), and the inner wall of the second movable groove (341) is slidably connected to the outer surface of the driving block (371).

9. The steel pipe seam welding device according to claim 8, characterized in that: A clamping block (38) is slidably mounted on the end of the fixing plate (31), and the end of the clamping block (38) extends to the lower end of the fixing plate (31), and the cross section of the clamping block (38) is L-shaped.

10. The steel pipe seam welding device according to claim 9, characterized in that: A through hole (381) is provided at the end of the clamping block (38), and the inner wall of the through hole (381) is slidably connected to the outer surface of the clamping block (372).

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