Steel pipe joint welding device

Abstract

The invention discloses a steel pipe joint welding device, and relates to the technical field of welding equipment, the steel pipe joint welding device comprises a base, the upper end of the base is provided with a positioning assembly, and a steel pipe is limited through the positioning assembly; according to the steel pipe joint welding device, when the electric telescopic rod is started, the movable block arranged at the output end of the electric telescopic rod is driven to move, the positioning block is rotationally installed on the movable block, meanwhile, the end of the positioning block is provided with a clamping piece and other parts with the fixing function, and therefore the positioning block can be kept stable when rotating; and meanwhile, positioning grooves of different sizes are formed in the outer surfaces of the positioning blocks, the positioning grooves of different specifications are adjusted according to actual conditions, the steel pipe is limited in a staggered mode, and therefore the overall stability of the steel pipe is guaranteed.

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 clamps the hydraulic cylinders on both sides to abut and fix the steel pipe, thereby performing steel pipe seam welding.

[0003] A Chinese invention patent with publication number CN116984823B discloses a device for welding the seams of electric steel pipes. In the process of conveying the steel pipes, the limiting rollers in a group of two can rotate to convert the sliding friction into rolling friction. On the one hand, it can reduce the damping of the conveying unit during the conveying of the steel pipes. On the other hand, the rolling friction avoids causing a large amount of wear on the mobile positioning mechanism, thereby increasing the service life of the mobile positioning mechanism. It also avoids the left and right deviations caused by the wear of the mobile positioning mechanism after the slit of the steel pipe is closed, thereby affecting the welding of the slit of the steel pipe by the welding mechanism. The two limiting rollers of the limiting part are staggered so that the two limiting rollers of the limiting part overlap, so that the limiting area of ​​the entire limiting frame tends to the diameter of one limiting roller. On the basis of realizing that both limiting rollers can rotate, the thickness of the mobile positioning mechanism is reduced as much as possible to improve the positioning effect of the mobile positioning mechanism.

[0004] When the existing equipment is in use, 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 deformation of the steel pipe, 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 prone to occur, which in turn affects the welding quality. Therefore, a steel pipe seam welding device has been developed. Summary of the invention

[0005] The purpose 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 solutions: a steel pipe joint welding device, comprising a base, a positioning assembly is provided at the upper end of the base, and the steel pipe is limited by the positioning assembly;

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

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

[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, and 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, and a positioning groove is provided on the outer surface of the positioning block, 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 opened 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 piece is provided at the end of the fixed plate, and the output end of the power piece passes through and extends to the other end of the fixed plate, and a first turntable and a second turntable are provided at the output end of the power piece.

[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, and a sliding block is provided at the end of the rotating block, and the outer surface of the sliding block is slidably connected to the inner wall of the first movable groove.

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

[0014] As a further optimization scheme of the present invention, a guide block is arranged at the upper end of the adjustment plate, a moving block is slidably mounted on the outer surface of the guide block, a limiting groove is opened at the end of the moving block, and an extrusion block is arranged 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 arranged at one end of the rotating block, and a clamping block is arranged at the other end.

[0017] As a further optimization solution of the present invention, a second movable groove is opened at the end of the second rotating disk, 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 opened 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 and other components with a fixing function, 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, and 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 arranged at its end to move. Since the outer surface of the swing rod is slidably connected with the inner wall of the limiting 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 when the steel pipe is welded, the whole remains stable, and when the steel pipe is assembled, the steel pipe is pre-fixed by the limiting assembly, so as to facilitate the adjustment of the steel pipe and keep 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 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.

[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 a positioning assembly structure provided by an embodiment of the present invention;

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

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

[0028] Figure 6 A second schematic diagram of a 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 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. Ball; 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. Sliding block; 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 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.

[0034] 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.

[0035] Example: See Figure 1-Figure 8 A steel pipe seam welding device comprises a base 1, a positioning assembly 2 is arranged at the upper end of the base 1, and the steel pipe is limited by the positioning assembly 2.

[0036] The positioning assembly 2 includes a driving member 21 connected to the base 1 , and fixing blocks 22 are 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 arranged 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 ball 27 is provided at the end of the adjustment block 26.

[0039] Specifically, when the push block 24 moves, the push rods 25 arranged at both ends thereof are synchronously driven 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 shifting during movement. At the same time, the adjustment block 26 is driven to move by the push rod 25, and the steel pipe welding point is detected in cooperation with the ball 27. 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, and 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, 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.

[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. 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 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 it rotates.

[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 limit assembly 3 is slidably installed on the inner wall of the guide groove 12, and the limit assembly 3 is used to pre-fix the steel pipe 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 arranged on the inner wall of the guide groove 12 and 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, 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, and a first turntable 33 and a second turntable 34 are provided at the output end of the power piece 32.

[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, a limit block 311 is symmetrically arranged at the end of the fixed plate 31, and an adjustment plate 312 is slidably mounted on the outer surface of the limit block 311. A guide block 36 is arranged 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, and a limit 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. The cross section of the rotating block 35 is Y-shaped, and a swing rod 352 is arranged 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 limit groove 362.

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

[0052] When the rotating block 35 moves, the swing rod 352 arranged at its end is synchronously driven to move. Since the outer surface of the swing rod 352 is slidably connected with 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, wherein 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 at the end of the fixed plate 31, and a driving block 371 is disposed at one end of the rotating block 37, and a clamping block 372 is disposed at the other end. A second movable groove 341 is formed 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.

[0054] Specifically, when the second turntable 34 rotates, the second movable groove 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, and 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 select a single-chip microcomputer as the control end. In this embodiment, the single-chip microcomputer is a typical embedded microcontroller (MicrocontrollerUnit), 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 the storage capacity is small, the input and output interface is simple, and the function consumption is low.

[0058] 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 steel pipe seam welding device, characterized in that: It comprises a base (1), the upper end of the base (1) is provided with a positioning assembly (2), 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 arranged 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 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), and 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 ball (27) is provided at the end of the adjustment block (26); 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), and a movable block (29) is slidably mounted on the inner wall of each groove (281), and a positioning block (291) is rotatably mounted 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). A limit assembly (3) is slidably mounted on the inner wall of the guide groove (12), and the steel pipe is pre-fixed before welding by means of the limit assembly (3).

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

3. A 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 sliding block (351) is provided at the end of the rotating block (35), and the outer surface of the sliding block (351) is slidably connected to the inner wall of the first movable groove (331).

4. A steel pipe seam welding device according to claim 3, characterized in that: A limiting block (311) is symmetrically arranged 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. A 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), 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. A steel pipe joint 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. A 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 a driving block (371) is arranged at one end of the rotating block (37) and a clamping block (372) is arranged at the other end.

8. The steel pipe joint 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. A steel pipe joint 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. A 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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