Welding fixture for pipe welder

Abstract

The utility model discloses a welding fixture for a pipe welder, which comprises a mounting seat, a clamping component used for clamping pipeline main bodies is mounted on the mounting seat, the two pipeline main bodies are welded by a welding component, the clamping component comprises a supporting seat and a rotating ring, the supporting seat is fixed on the outer wall of the top of the mounting seat, and the rotating ring is fixed on the outer wall of the top of the mounting seat. The rotating ring is movably connected to the inner wall of the supporting seat, guide rods are movably connected to the outer wall of the circumference of the rotating ring, moving frames are welded to one ends of the two guide rods, and clamping plates are fixed to the outer walls of one sides of the moving frames. Through the matched design of the supporting seat, the rotating ring, the guide rod, the moving frame and the clamping plates in the clamping assembly and the driving of the rotating driving piece to the moving frame, it can be ensured that a pipeline body is stably and accurately clamped, V-shaped grooves in the clamping plates support the bottom of a pipeline, the two sets of clamping plates move relatively to clamp the outer wall, and the clamping efficiency is improved. The pipeline is effectively prevented from deviating or shaking in the welding process, and the welding quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, and in particular to a welding fixture for a pipe welding machine. Background Technology

[0002] In the field of welded pipe processing, butt welding of pipes is one of the key process links that determines the quality of welded pipes. During the welding process, the alignment accuracy of the pipe joint, the clamping stability, and the rotation synchronization during welding directly affect the strength, sealing and appearance quality of the weld. Especially in the welding of thin-walled pipes and high-precision industrial pipes, the requirements for the positioning accuracy and dynamic stability of the clamps are more stringent.

[0003] A search revealed a Chinese patent application with patent number 202321461253.X, which discloses a welding fixture for a high-frequency welded pipe machine. The fixture includes a support and two sets of arc-shaped clamping plates. Each set of arc-shaped clamping plates has a mounting block fixedly installed on one side. The fixture also includes a clamping component to prevent excessive compression of the welded pipe, and the clamping component is mounted on the support. An adsorption component is also mounted on the support. The support includes a first U-shaped plate, a square plate fixedly mounted on the top of the first U-shaped plate, a second U-shaped plate fixedly mounted on the top of the square plate, and a connecting column fixedly mounted on the top of the second U-shaped plate.

[0004] The welding fixture for a high-frequency welded pipe machine in the aforementioned patent has the following shortcomings: Before the welded pipe is fixed, a corresponding arc-shaped clamping plate needs to be selected according to the diameter of the welded pipe and the arc-shaped clamping plate needs to be fixed. This means that when welded pipes of different diameters are required, different arc-shaped clamping plates need to be selected and fixed, which makes the process of fixing the arc-shaped clamping plate time-consuming, thus affecting the welding efficiency. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a welding fixture for pipe welding machines.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A welding fixture for a pipe welding machine includes a mounting base, on which a clamping assembly for clamping a pipe body is mounted. Two pipe bodies are welded together using the welding assembly. The clamping assembly includes a support base and a rotating ring. The support base is fixed to the top outer wall of the mounting base, and the rotating ring is movably connected to the inner wall of the support base. A guide rod is movably connected to the outer circumference of the rotating ring. A movable frame is welded to one end of each of the two guide rods, and a clamping plate is fixed to one side of the outer wall of the movable frame. The two movable frames are driven by a rotary drive component.

[0008] As a further embodiment of this utility model: the rotation drive component includes a transverse drive component and a rotation mechanism. The transverse component includes a bracket and an electric telescopic rod. The bracket is fixed to the outer wall of one side of the upright plate, and the electric telescopic rod is fixed to the outer wall of one side of the bracket.

[0009] As a further embodiment of this utility model: a rotating disk is movably connected to a through hole on the surface of the upright plate, and a drive rod is movably connected to the surface of the rotating disk.

[0010] As a further embodiment of this utility model: one end of the drive rod is movably connected to the output end of the electric telescopic rod, and the other end of the drive rod is fixed with a mounting plate, and a swing arm is movably connected between the inner wall of the mounting plate and the inner wall of the clamping plate.

[0011] As a further embodiment of this utility model: the rotating mechanism includes a drive motor and a second bracket, the second bracket being fixed to the outer wall of one side of the upright plate, and the drive motor being fixed to the outer wall of one side of the second bracket.

[0012] As a further embodiment of this utility model: a pulley is fixed to the output end of the drive motor, and a second pulley is fixed to the outer wall of one side of the rotating disk, and the second pulley and the first pulley are driven by a synchronous belt.

[0013] As a further embodiment of this utility model: the welding assembly includes a fixing plate and a welding head, the fixing plate is fixed to the top outer wall of the mounting base, and the welding head is mounted on the fixing plate.

[0014] As a further improvement of this utility model, the outer wall of the drive rod is integrally formed with ribs.

[0015] Compared with the prior art, this utility model provides a welding fixture for a pipe welding machine, which has the following advantages:

[0016] 1. Through the coordinated design of the support base, rotating ring, guide rod, moving frame and clamping plate in the clamping assembly, as well as the driving of the moving frame by the rotating drive component, the pipe body can be stably and accurately clamped. The V-shaped groove on the clamping plate supports the bottom of the pipe, and the relative movement of the two sets of clamping plates clamps the outer wall, effectively preventing the pipe from shifting or shaking during the welding process and ensuring the welding quality.

[0017] 2. Due to the rotatable connection between the rotating ring and the support base, the rotary drive component can not only clamp and fix the pipe, but also drive the clamped and fixed pipe body to rotate. In the rotary mechanism, the drive motor drives the drive rod to rotate through pulley one, synchronous belt and pulley two, thereby causing the pipe to rotate. The rib structure on the outer wall of the drive rod prevents slippage, ensuring the stability and efficiency of the rotation, and facilitating the welding assembly to perform comprehensive welding at the pipe joint.

[0018] 3. The structure of the fixing plate and welding head in the welding assembly is simple and easy to install. During the process of the two pipe bodies being clamped and rotated synchronously, it is only necessary to align the joint between the two pipe bodies and the welding head, connect the welding head and the welding machine to carry out welding. The operation process is simple and reduces the technical requirements for operators.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a welding fixture for a pipe welding machine proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the side structure of a welding fixture for a pipe welding machine proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of the clamping assembly of a welding fixture for a pipe welding machine proposed in this utility model;

[0023] Figure 4 This is a partial structural diagram of the clamping assembly of a welding fixture for a pipe welding machine proposed in this utility model;

[0024] Figure 5 This is a partial exploded structural diagram of the clamping assembly of a welding fixture for a pipe welding machine proposed in this utility model.

[0025] In the diagram: Mounting base 1; Drive motor 2; Bracket 1 3; Support base 4; Fixing plate 5; Welding head 6; Vertical plate 7; Rotating ring 8; Pipe body 9; Swing arm 10; Guide rod 11; Clamping plate 12; Moving frame 13; Mounting plate 14; Electric telescopic rod 15; Drive rod 16; Rotating disc 17; Pulley 1 18; Synchronous belt 19; Pulley 2 20; Bracket 2 21. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] A welding fixture for a pipe welding machine, such as Figures 1 to 5As shown, the device includes a mounting base 1, on which a clamping assembly for clamping a pipe body 9 is mounted. The two pipe bodies 9 are welded together using a welding assembly. The clamping assembly includes a support base 4 and a rotating ring 8. The support base 4 is fixed to the top outer wall of the mounting base 1 by bolts, and the rotating ring 8 is rotatably connected to the inner wall of the support base 4. A guide rod 11 is slidably connected to the outer circumference of the rotating ring 8. A movable frame 13 is welded to one end of each of the two guide rods 11, and a clamping plate 12 is fixed to one side of the outer wall of the movable frame 13 by bolts. The two movable frames 13 are driven by a rotary drive component.

[0028] When it is necessary to clamp the pipe body 9, a V-shaped groove is provided on the clamping plate 12. The V-shaped groove on the bottom clamping plate 12 can support pipe bodies 9 of different diameters. The rotary drive can drive the relative movement between the two sets of moving frames 13. The guide rod 11 and the rotating ring 8 guide the movement path of the clamping plate 12. The relative movement between the two sets of clamping plates 12 continues until the outer wall of the pipe body 9 is clamped and fixed. At the same time, due to the rotatable connection between the rotating ring 8 and the support base 4, the rotary drive can drive the clamped and fixed pipe body 9 to rotate. During the synchronous rotation of the two pipe bodies 9, the welding assembly welds the joint between the two pipe bodies 9.

[0029] The rotating drive component includes a lateral drive component and a rotating mechanism. The lateral component includes a bracket 3 and an electric telescopic rod 15. The bracket 3 is fixed to the outer wall of one side of the upright plate 7 by bolts, and the electric telescopic rod 15 is fixed to the outer wall of one side of the bracket 3 by bolts. A rotating disk 17 is rotatably connected to a through hole on the surface of the upright plate 7, and a drive rod 16 is slidably connected to the surface of the rotating disk 17. One end of the drive rod 16 is rotatably connected to the output end of the electric telescopic rod 15. The other end of the drive rod 16 is fixed to a mounting plate 14 by bolts, and a swing arm 10 is rotatably connected between the inner wall of the mounting plate 14 and the inner wall of the clamping plate 12.

[0030] When the electric telescopic rod 15 drives the drive rod 16 and the mounting plate 14 to move laterally along the rotating disk 17, the swing arm 10 converts the lateral movement of the drive rod 16 and the mounting plate 14 into the linear movement of the guide rod 11 and the clamping plate 12 along the rotating ring 8. The synchronous relative movement between the two sets of clamping plates 12 clamps and fixes the pipe body 9.

[0031] The rotating mechanism includes a drive motor 2 and a bracket 21. The bracket 21 is fixed to the outer wall of one side of the upright plate 7 by bolts, and the drive motor 2 is fixed to the outer wall of one side of the bracket 21 by bolts. The output end of the drive motor 2 is fixed to a pulley 18 by screws, and a pulley 20 is fixed to the outer wall of one side of the rotating disk 17 by screws. The pulley 20 and the pulley 18 are driven by a synchronous belt 19.

[0032] The outer wall of the drive rod 16 is integrally formed with ribs. The drive motor 2 drives the drive rod 16 to rotate through the synchronous belt 19 via pulley 18 and pulley 20. The rib structure effectively prevents slippage between pulley 20 and drive rod 16 during relative rotation. During the rotation of the drive rod 16, the clamped and fixed pipe body 9 rotates.

[0033] The welding assembly includes a fixing plate 5 and a welding head 6. The fixing plate 5 is fixed to the top outer wall of the mounting base 1 by bolts, and the welding head 6 is mounted on the fixing plate 5.

[0034] When welding between two pipe bodies 9, the joint between the two pipe bodies 9 is aligned with the welding head 6, and the welding head 6 is connected to the welding machine (not shown). When the two pipe bodies 9 are clamped and rotated synchronously using their respective clamping components and rotating drive components, the welding head 6 welds the joint between the two pipe bodies 9. In this embodiment, the preferred welding method between the two pipe bodies 9 is gas welding.

[0035] Working principle: The V-groove on the bottom clamping plate 12 supports the pipe body 9. The electric telescopic rod 15 starts to drive the drive rod 16 and the mounting plate 14 to move laterally along the rotating disk 17. The swing arm 10 converts the lateral movement of the drive rod 16 and the mounting plate 14 into the linear movement of the guide rod 11 and the clamping plate 12 along the rotating ring 8, so that the two sets of clamping plates 12 move synchronously relative to each other, clamping and fixing the outer wall of the pipe body 9. The drive motor 2 starts and its output end drives the pulley 18 to rotate. Through the transmission of the synchronous belt 19, the pulley 20 rotates and the drive rod 16 rotates. During the rotation of the drive rod 16, the clamped and fixed pipe body 9 is driven to rotate, realizing the synchronous rotation of the two pipe bodies 9. The joint between the two pipe bodies 9 is aligned with the welding head 6, and the welding head 6 is connected to the welding machine. During the synchronous rotation of the two pipe bodies 9 after being clamped by their respective clamping components and rotating drive components, the welding head 6 welds the joint between the two pipe bodies 9.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A welding fixture for a pipe welding machine, comprising a mounting base (1), characterized in that, The mounting base (1) is equipped with a clamping assembly for clamping the pipe body (9), and the two pipe bodies (9) are welded together using a welding assembly. The clamping assembly includes a support base (4) and a rotating ring (8). The support base (4) is fixed to the top outer wall of the mounting base (1), and the rotating ring (8) is movably connected to the inner wall of the support base (4). The outer circumference of the rotating ring (8) is movably connected to a guide rod (11). One end of each guide rod (11) is welded with a movable frame (13), and a clamping plate (12) is fixed to one side of the outer wall of the movable frame (13). The two movable frames (13) are driven by a rotary drive component.

2. The welding fixture for a pipe welding machine according to claim 1, characterized in that, The rotation drive includes a transverse drive and a rotation mechanism. The transverse component includes a bracket (3) and an electric telescopic rod (15). The bracket (3) is fixed to the outer wall of one side of the upright plate (7), and the electric telescopic rod (15) is fixed to the outer wall of one side of the bracket (3).

3. The welding fixture for a pipe welding machine according to claim 2, characterized in that, The through hole on the surface of the upright plate (7) is movably connected to the rotating disk (17), and the surface of the rotating disk (17) is movably connected to the drive rod (16).

4. The welding fixture for a pipe welding machine according to claim 3, characterized in that, One end of the drive rod (16) is movably connected to the output end of the electric telescopic rod (15), and the other end of the drive rod (16) is fixed with a mounting plate (14), and a swing arm (10) is movably connected between the inner wall of the mounting plate (14) and the inner wall of the clamping plate (12).

5. A welding fixture for a pipe welding machine according to claim 4, characterized in that, The rotating mechanism includes a drive motor (2) and a second bracket (21). The second bracket (21) is fixed to the outer wall of one side of the upright plate (7), and the drive motor (2) is fixed to the outer wall of one side of the second bracket (21).

6. A welding fixture for a pipe welding machine according to claim 5, characterized in that, The output end of the drive motor (2) is fixed with a pulley one (18), and a pulley two (20) is fixed on the outer wall of one side of the rotating disk (17). The pulley two (20) and the pulley one (18) are driven by a synchronous belt (19).

7. A welding fixture for a pipe welding machine according to claim 6, characterized in that, The welding assembly includes a fixing plate (5) and a welding head (6). The fixing plate (5) is fixed to the top outer wall of the mounting base (1), and the welding head (6) is mounted on the fixing plate (5).

8. A welding fixture for a pipe welding machine according to claim 7, characterized in that, The outer wall of the drive rod (16) is integrally formed with ribs.

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