A pipe welding positioning fixture

Abstract

This utility model provides a pipe welding positioning fixture, relating to the field of pipe welding technology. It includes a positioning platform, on which a first fixing member, a sliding seat, a sliding guide rail, and a second fixing member are disposed. The first fixing member is mounted on the positioning platform, the second fixing member is mounted on the sliding seat, and the sliding guide rail is mounted on the positioning platform. The sliding seat is slidably mounted on the sliding guide rail. The sliding guide rail includes two parallel straight sections and an arc-shaped section between the two straight sections. The first fixing member is located within the space surrounded by the sliding guide rail. The first fixing member is used to fix the main pipe, and the second fixing member is used to fix the secondary pipe to be welded. This utility model improves the efficiency of pipe welding.

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding technology, and more specifically, to a pipe welding positioning device. Background Technology

[0002] Pipe welding is an indispensable connection process in fields such as machinery manufacturing, pipeline engineering, aerospace, automotive, and furniture manufacturing. Whether it's butt welding of pipes of the same diameter, connecting pipes of different diameters, or assembling multi-way fittings, flanges, and pipe bodies, welding is essential to achieve a permanent structural bond. The quality of the welding directly affects the structural strength, sealing performance, and service life of the entire product.

[0003] Currently, when welding pipes, the pipes are usually placed on a welding table, and then the pipe to be welded is connected to the fixed pipe before welding.

[0004] However, when welding multiple pipes with precise angles or in batch production, the angles of the pipes need to be adjusted to make the two pipe sections reach the designed welding angle, resulting in low welding efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a pipe welding positioning fixture that can improve the welding efficiency of pipes.

[0006] This utility model is achieved through the following technical solution:

[0007] A pipe welding positioning fixture includes a positioning platform. The positioning platform is provided with a first fixing member, a sliding seat, a sliding guide rail, and a second fixing member. The first fixing member is disposed on the positioning platform, the second fixing member is disposed on the sliding seat, and the sliding guide rail is disposed on the positioning platform. The sliding seat is slidably disposed on the sliding guide rail. The sliding guide rail includes two parallel straight sections and an arc-shaped section disposed between the two straight sections. The first fixing member is located within the space surrounded by the sliding guide rail. The first fixing member is used to fix the main pipe, and the second fixing member is used to fix the secondary pipe to be welded.

[0008] Optionally, both the first and second fixing members include two mounting seats, which are spaced apart. The top surface of each mounting seat has an arc-shaped positioning notch. A lower pressure plate is provided on the mounting seat, which spans the positioning notch. The first and second fixing members also include two positioning balls disposed within the positioning notch and a positioning wheel disposed at the bottom of the lower pressure plate. The main pipe and the auxiliary pipe are located in the space surrounded by the two positioning balls and the positioning wheel. The lower pressure plate is slidably disposed on the mounting seat and slides in a vertical direction. The first and second fixing members also include a first driving member for driving the lower pressure plate to slide.

[0009] Optionally, a fixed seat is provided at the bottom of the lower pressure plate. The fixed seat is located in the middle of the lower pressure plate. An installation notch is provided at the bottom of the fixed seat. The positioning wheel is rotatably mounted inside the fixed seat through the installation notch, and the peripheral wall of the positioning wheel is located outside the fixed seat. A first motor is provided on the fixed seat, and the positioning wheel is coaxially mounted on the output shaft of the first motor.

[0010] Optionally, the fixed seat is rotatably mounted on the lower pressure plate, the rotation axis of the fixed seat is perpendicular to the lower pressure plate, a second motor is provided on the top surface of the lower pressure plate, the output shaft of the second motor passes through the lower pressure plate, and the fixed seat is fixedly mounted on the output shaft of the second motor.

[0011] Optionally, the positioning ball is slidably disposed within the positioning notch, and the two positioning balls slide along the arc direction of the positioning notch. The two positioning balls move closer or further apart to support the pipe material. The system also includes a third fixing member, which is used to fix the positioning ball to the position after sliding.

[0012] Optionally, a receiving guide rail is provided on the outer side of the sliding guide rail, and a clamping seat is provided at the bottom of the sliding seat. The clamping seat has a clamping notch at the bottom and is engaged with the sliding guide rail through the clamping notch. Two drive rollers are provided inside the clamping seat and through the clamping notch. The drive rollers are vertically arranged and the two drive rollers clamp the sliding guide rail. A third motor is provided inside the clamping seat to drive the drive rollers to rotate and move the sliding seat along the sliding guide rail.

[0013] Optionally, a guide roller is rotatably disposed inside the clamping seat and through the top wall of the clamping notch, the rotation axis of the guide roller is horizontally disposed, and the top of the receiving guide rail abuts against the peripheral wall of the guide roller.

[0014] Optionally, the first driving component includes a hydraulic cylinder mounted on a mounting base, the length direction of the hydraulic cylinder piston rod being perpendicular to the lower pressure plate, and two hydraulic cylinders being provided, each located on either side of a two positioning ball, with the lower pressure plate mounted on the hydraulic cylinder piston rod.

[0015] Optionally, a connecting hole is provided on one side of the lower pressure plate, and the lower pressure plate is rotatably mounted on the piston rod of any hydraulic cylinder through the connecting hole. An arc-shaped entry notch is provided on the other side of the lower pressure plate, and the lower pressure plate is rotated to move the piston rod of another hydraulic cylinder into the entry notch. The lower pressure plate also includes a fourth fixing member, which is used to fix the lower pressure plate to the piston rod of the hydraulic cylinder after the piston rod of the hydraulic cylinder moves into the entry notch.

[0016] Optionally, the fourth fixing member includes two nuts and a threaded section disposed on the piston rod of the hydraulic cylinder. Both nuts are threadedly connected to the piston rod of the hydraulic cylinder and are used to clamp the lower pressure plate.

[0017] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0018] 1. During pipe welding, the main pipe is placed on the positioning table and fixed by the first fixing component. Then, the secondary pipe is fixed by the second fixing component. When the secondary pipe is welded coaxially with the main pipe, the sliding seat moves on the sliding guide rail to make the secondary pipe coaxial with the main pipe, and then the welding operation is performed. When the main pipe is welded laterally, the sliding seat slides on the sliding guide rail to the side wall of the main pipe, so that the secondary pipe and the main pipe have a certain angle, and then the welding operation is performed. By adjusting the position of the sliding seat on the sliding guide rail, the angle between the pipes can be adjusted, thereby improving the pipe angle adjustment speed and the pipe welding efficiency.

[0019] 2. When welding pipes from the same batch, once the position of the sliding seat is fixed, there is no need to adjust the position of subsequent pipes, which further improves the welding efficiency of the pipes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a pipe welding positioning fixture according to this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the second fixing component in a pipe welding positioning fixture of this utility model;

[0022] Figure 3 This is a sectional view of the mounting base in a pipe welding positioning fixture of this utility model;

[0023] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle;

[0024] Figure 5 This is a schematic diagram of the clamping seat in a pipe welding positioning fixture of this utility model.

[0025] Figure label:

[0026] 1. Positioning platform; 2. First fixing component; 3. Sliding seat; 4. Sliding guide rail; 5. Second fixing component; 6. Main pipe; 7. Secondary pipe; 8. Mounting seat; 9. Positioning notch; 10. Lower pressure plate; 11. Positioning ball; 12. Positioning wheel; 13. Hydraulic cylinder; 14. Fixed seat; 15. First motor; 16. Second motor; 17. Arc groove; 18. Sliding plate; 19. Rack; 20. Mounting notch; 21. Gear; 22. Fixed motor; 23. Entry notch; 24. Nut; 25. Receiving guide rail; 26. Clamping seat; 27. Clamping notch; 28. Drive roller; 29. ​​Third motor; 30. Guide roller. Detailed Implementation

[0027] The following is for reference Figures 1-5 As shown in the illustration, and further illustrated with specific embodiments, this embodiment provides a pipe welding positioning fixture. (Refer to...) Figure 1 The system includes a positioning platform 1, on which a first fixing member 2, a sliding seat 3, a sliding guide rail 4, and a second fixing member 5 are provided. The first fixing member 2 is provided on the positioning platform 1, the second fixing member 5 is provided on the sliding seat 3, and the sliding guide rail 4 is provided on the positioning platform 1. The sliding seat 3 is slidably provided on the sliding guide rail 4. The sliding guide rail 4 includes two parallel straight sections and an arc-shaped section provided between the two straight sections. The first fixing member 2 is located in the space surrounded by the sliding guide rail 4. The first fixing member 2 is used to fix the main pipe 6, and the second fixing member 5 is used to fix the auxiliary pipe 7 to be welded.

[0028] During pipe welding, the main pipe 6 is placed on the positioning table 1 and fixed by the first fixing member 2. Then, the secondary pipe 7 is fixed by the second fixing member 5. When the secondary pipe 7 and the main pipe 6 are welded coaxially, the sliding seat 3 moves on the sliding guide rail 4 to drive the secondary pipe 7 and the main pipe 6 to be coaxial, and then the welding operation is carried out. When the main pipe 6 is welded laterally, the sliding seat 3 slides on the sliding guide rail 4 to the side wall of the main pipe 6, so that the secondary pipe 7 and the main pipe 6 have a certain angle, and then the welding operation is carried out. By adjusting the position of the sliding seat 3 on the sliding guide rail 4, the angle between the pipes can be adjusted, thereby improving the pipe angle adjustment speed and the pipe welding efficiency.

[0029] Reference Figure 1 and Figure 2 In this embodiment, the first fixing member 2 and the second fixing member 5 each include two mounting seats 8, which are spaced apart and facing each other. The top surface of the mounting seat 8 is provided with an arc-shaped positioning notch 9, and the axial direction of the positioning notch 9 is parallel to the axial direction of the pipe. A lower pressure plate 10 is provided on the mounting seat 8, which spans the positioning notch 9. The first fixing member 2 and the second fixing member 5 also include two positioning balls 11 disposed in the positioning notch 9 and a positioning wheel 12 disposed at the bottom of the lower pressure plate 10. The main pipe 6 and the secondary pipe 7 are located in the space surrounded by the two positioning balls 11 and the positioning wheel 12. The lower pressure plate 10 is slidably disposed on the mounting seat 8 and slides in the vertical direction. The first fixing member 2 and the second fixing member 5 also include a first driving member for driving the lower pressure plate 10 to slide.

[0030] Reference Figure 2 and Figure 3 The first driving component includes a hydraulic cylinder 13 mounted on the mounting base 8. The length direction of the piston rod of the hydraulic cylinder 13 is perpendicular to the lower pressure plate 10. There are two hydraulic cylinders 13, which are located on both sides of the two positioning balls 11 respectively. The lower pressure plate 10 is mounted on the piston rod of the hydraulic cylinder 13.

[0031] Once the pipe enters the positioning notch 9, the hydraulic cylinder 13 is activated. The hydraulic cylinder 13 drives the lower pressure plate 10 to move toward the positioning notch 9, which in turn drives the positioning wheel 12 to move toward the pipe and press down on the pipe's circumference, thus fixing the pipe onto the mounting base 8. The operation is simple and convenient. Furthermore, the positioning ball 11 reduces the friction between the pipe and the positioning ball 11, making it easier to adjust the position of the pipe between the two mounting bases 8 and keep the pipe in a horizontal state.

[0032] Reference Figure 2 To facilitate coaxial welding of pipes, in this embodiment, a fixing seat 14 is provided at the bottom of the lower pressure plate 10. The fixing seat 14 is located in the middle of the lower pressure plate 10, and an installation notch 20 is provided at the bottom of the fixing seat 14. The positioning wheel 12 is rotatably mounted in the fixing seat 14 through the installation notch 20, and the peripheral wall of the positioning wheel 12 is located outside the fixing seat 14. A first motor 15 is provided on the fixing seat 14, and the positioning wheel 12 is coaxially mounted on the output shaft of the first motor 15. When the pipes are coaxially welded, the welding end of the pipe is first welded for positioning, and then the first motor 15 is started. The first motor 15 drives the positioning wheel 12 to rotate, and the rotation of the positioning wheel 12 causes the pipe to rotate in the mounting seat 8, which facilitates axial welding of the pipe.

[0033] Reference Figure 2 Furthermore, to improve the welding effect of the pipe, the fixing seat 14 is rotatably mounted on the lower pressure plate 10, and the rotation axis of the fixing seat 14 is perpendicular to the lower pressure plate 10. A second motor 16 is mounted on the top surface of the lower pressure plate 10, and the output shaft of the second motor 16 passes through the lower pressure plate 10. The fixing seat 14 is fixedly mounted on the output shaft of the second motor 16. When the pipe is being welded laterally, the second motor 16 is started, which drives the fixing seat 14 to rotate. The fixing seat 14 carries the positioning wheel 12 to rotate. The positioning wheel 12 rotates to a position perpendicular to the pipe. Then, the first motor 15 is started, which drives the positioning wheel 12 to rotate. The pipe to be welded tends to move towards the welding pipe, and a thrust is applied to the welding joint of the two, so that the two are tightly fitted together, thereby improving the welding effect.

[0034] Reference Figure 3 and Figure 4In this embodiment, to facilitate the mounting base 8 to adapt to pipes of different diameters, the positioning ball 11 is slidably disposed in the positioning notch 9. The two positioning balls 11 slide in the arc direction of the positioning notch 9. The two positioning balls 11 move closer or further away from each other to support the pipe. A third fixing member is also included. The third fixing member is used to fix the positioning ball 11 to the position after sliding. The third fixing member includes an arc-shaped groove 17 opened at the bottom of the positioning notch 9. The positioning ball 11 is hemispherical and has an arc-shaped bottom. A sliding plate 18 is fixedly disposed at the bottom of the positioning ball 11. The sliding plate 18 is slidably engaged in the arc-shaped groove 17. Furthermore, a rack 19 is fixedly disposed on the side wall of the arc-shaped groove 17. An installation notch 20 is opened in the middle of the sliding plate 18 and a gear 21 is rotatably disposed through the installation notch 20. The gear 21 meshes with the rack 19. Furthermore, a fixed motor 22 is also disposed in the sliding plate 18. The gear 21 is fixedly disposed on the output shaft of the fixed motor 22.

[0035] When adjusting the position of the positioning ball 11, the fixed motor 22 is started. The fixed motor 22 drives the gear 21 to rotate. The gear 21 rotates and moves along the rack 19, which drives the slide plate to move in the arc groove 17, which in turn drives the positioning ball 11 to move in the positioning notch 9. The operation is simple and convenient. Moreover, the fixed motor 22 is a motor with a self-locking function, which makes it easy to fix the position of the positioning ball 11.

[0036] Reference Figure 3 and Figure 5 In this embodiment of the application, in order to facilitate the movement of the pipe into the positioning notch 9 of the mounting base 8, a connecting hole is provided on one side of the lower pressure plate 10. The lower pressure plate 10 is rotatably mounted on the piston rod of any hydraulic cylinder 13 through the connecting hole. An arc-shaped entry notch 23 is provided on the other side of the lower pressure plate 10. The lower pressure plate 10 is rotated so that the piston rod of another hydraulic cylinder 13 moves into the entry notch 23. The application also includes a fourth fixing member. The fourth fixing member is used to fix the lower pressure plate 10 to the piston rod of the hydraulic cylinder 13 after the piston rod of the hydraulic cylinder 13 moves into the entry notch 23.

[0037] Reference Figure 3 and Figure 5 The fourth fixing component includes two nuts 24 and a threaded section disposed on the piston rod of the hydraulic cylinder 13. Both nuts 24 are threadedly connected to the piston rod of the hydraulic cylinder 13 and are used to clamp the lower pressure plate 10.

[0038] When welding pipes with larger diameters, a hoisting method is usually used to hoist the pipes into the positioning notch 9. At this time, the nut 24 is turned to release the fixation of the lower pressure plate 10. Then, the lower pressure plate 10 is rotated to separate the lower pressure plate 10 from the piston rod of the hydraulic cylinder 13, thereby opening the positioning notch 9 and making it easier for the pipes to be hoisted from above the mounting base 8 into the positioning notch 9.

[0039] Reference Figure 5In this embodiment, a receiving guide rail 25 is provided on the outer side of the sliding guide rail 4, and a clamping seat 26 is provided at the bottom of the sliding seat 3. A clamping notch 27 is provided at the bottom of the clamping seat 26, and the clamping seat 26 is engaged with the sliding guide rail 4 through the clamping notch 27. Furthermore, two drive rollers 28 are provided inside the clamping seat 26 and through the clamping notch 27. The drive rollers 28 are arranged vertically and clamp the sliding guide rail 4. A third motor 29 is provided inside the clamping seat 26 to drive the drive rollers 28 to rotate and drive the sliding seat 3 to move along the sliding guide rail 4. When adjusting the position of the auxiliary pipe 7, the third motor 29 is started, and the third motor 29 drives the drive rollers 28 to rotate. The rotation of the drive rollers 28 drives the sliding seat 3 to move on the sliding guide rail 4, thereby moving the pipe to the required position. The operation is simple and convenient. Furthermore, under the action of the receiving guide rail 25, the sliding seat 3 is in a balanced state, which facilitates the movement of the sliding seat 3 on the sliding guide rail 4.

[0040] Reference Figure 5 Furthermore, a guide roller 30 is rotatably provided inside the clamping seat 26 and through the top wall of the clamping notch 27. The rotation axis of the guide roller 30 is horizontally set, and the top of the receiving guide rail 25 abuts against the peripheral wall of the guide roller 30. Under the action of the guide roller 30, the friction between the sliding seat 3 and the sliding guide rail 4 is reduced, which facilitates the sliding seat 3 to slide on the sliding guide rail 4.

[0041] The implementation principle of a pipe welding positioning fixture in this application embodiment is as follows:

[0042] During pipe welding, the main pipe 6 is placed on the positioning table 1 and fixed by the first fixing member 2. Then, the secondary pipe 7 is fixed by the second fixing member 5. When the secondary pipe 7 and the main pipe 6 are welded coaxially, the sliding seat 3 moves on the sliding guide rail 4 to drive the secondary pipe 7 and the main pipe 6 to be coaxial, and then the welding operation is carried out. When the main pipe 6 is welded laterally, the sliding seat 3 slides on the sliding guide rail 4 to the side wall of the main pipe 6, so that the secondary pipe 7 and the main pipe 6 have a certain angle, and then the welding operation is carried out. By adjusting the position of the sliding seat 3 on the sliding guide rail 4, the angle between the pipes can be adjusted, thereby improving the pipe angle adjustment speed and the pipe welding efficiency.

Claims

1. A pipe welding positioning tool characterized by: The system includes a positioning platform (1), on which a first fixing member (2), a sliding seat (3), a sliding guide rail (4), and a second fixing member (5) are provided. The first fixing member (2) is provided on the positioning platform (1), the second fixing member (5) is provided on the sliding seat (3), the sliding guide rail (4) is provided on the positioning platform (1), and the sliding seat (3) is slidably provided on the sliding guide rail (4). The sliding guide rail (4) includes two parallel straight sections and an arc-shaped section provided between the two straight sections. The first fixing member (2) is located in the space surrounded by the sliding guide rail (4). The first fixing member (2) is used to fix the main pipe (6), and the second fixing member (5) is used to fix the auxiliary pipe (7) to be welded.

2. The pipe welding positioning fixture according to claim 1, characterized in that: The first fixing member (2) and the second fixing member (5) each include two mounting seats (8), which are spaced apart. The top surface of each mounting seat (8) has an arc-shaped positioning notch (9). A lower pressure plate (10) is provided on the mounting seat (8) and spans the positioning notch (9). The first fixing member (2) and the second fixing member (5) also include two positioning balls (11) disposed in the positioning notch (9) and a positioning wheel (12) disposed at the bottom of the lower pressure plate (10). The main pipe (6) and the auxiliary pipe (7) are located in the space surrounded by the two positioning balls (11) and the positioning wheel (12). The lower pressure plate (10) is slidably disposed on the mounting seat (8) and slides in the vertical direction. The first fixing member (2) and the second fixing member (5) also include a first driving member for driving the lower pressure plate (10) to slide.

3. The pipe welding positioning fixture according to claim 2, characterized in that: The bottom of the lower pressure plate (10) is provided with a fixed seat (14), the fixed seat (14) is located in the middle of the lower pressure plate (10), the bottom of the fixed seat (14) is provided with an installation notch (20), the positioning wheel (12) is rotatably mounted in the fixed seat (14) through the installation notch (20) and the peripheral wall of the positioning wheel (12) is located outside the fixed seat (14), the fixed seat (14) is provided with a first motor (15), and the positioning wheel (12) is coaxially mounted on the output shaft of the first motor (15).

4. The pipe welding positioning fixture according to claim 3, characterized in that: The fixed seat (14) is rotatably mounted on the lower pressure plate (10). The rotation axis of the fixed seat (14) is perpendicular to the lower pressure plate (10). A second motor (16) is mounted on the top surface of the lower pressure plate (10). The output shaft of the second motor (16) passes through the lower pressure plate (10). The fixed seat (14) is fixedly mounted on the output shaft of the second motor (16).

5. The pipe welding positioning fixture according to claim 2, characterized in that: The positioning ball (11) is slidably disposed in the positioning notch (9). The two positioning balls (11) slide in the arc direction of the positioning notch (9). The two positioning balls (11) move closer or further away from each other to support the pipe material. The system also includes a third fixing member, which is used to fix the positioning ball (11) to the position after sliding.

6. The pipe welding positioning fixture according to claim 1, characterized in that: A receiving guide rail (25) is provided on the outer side of the sliding guide rail (4), and a clamping seat (26) is provided at the bottom of the sliding seat (3). A clamping notch (27) is provided at the bottom of the clamping seat (26). The clamping seat (26) is engaged with the sliding guide rail (4) through the clamping notch (27). Two drive rollers (28) are provided inside the clamping seat (26) and through the clamping notch (27). The drive rollers (28) are arranged vertically. The two drive rollers (28) clamp the sliding guide rail (4). A third motor (29) is provided inside the clamping seat (26) to drive the drive rollers (28) to rotate and drive the sliding seat (3) to move along the sliding guide rail (4).

7. The pipe welding positioning fixture according to claim 6, characterized in that: A guide roller (30) is rotatably disposed inside the clamping seat (26) and through the top wall of the clamping notch (27). The rotation axis of the guide roller (30) is horizontally disposed, and the top of the receiving guide rail (25) abuts against the peripheral wall of the guide roller (30).

8. The pipe welding positioning fixture according to claim 2, characterized in that: The first driving component includes a hydraulic cylinder (13) mounted on the mounting base (8). The length direction of the piston rod of the hydraulic cylinder (13) is perpendicular to the lower pressure plate (10). There are two hydraulic cylinders (13) located on both sides of the two positioning balls (11). The lower pressure plate (10) is mounted on the piston rod of the hydraulic cylinder (13).

9. A pipe welding positioning fixture according to claim 8, characterized in that: The lower pressure plate (10) has a connecting hole on one side. The lower pressure plate (10) is rotatably mounted on the piston rod of any hydraulic cylinder (13) through the connecting hole. The lower pressure plate (10) has an arc-shaped entry notch (23) on the other side. The lower pressure plate (10) rotates to move the piston rod of another hydraulic cylinder (13) into the entry notch (23). The lower pressure plate (10) also includes a fourth fixing member. The fourth fixing member is used to fix the lower pressure plate (10) onto the piston rod of the hydraulic cylinder (13) after the piston rod of the hydraulic cylinder (13) moves into the entry notch (23).

10. A pipe welding positioning fixture according to claim 9, characterized in that: The fourth fixing member includes two nuts (24) and a threaded section disposed on the piston rod of the hydraulic cylinder (13). Both nuts (24) are threadedly connected to the piston rod of the hydraulic cylinder (13) and are used to clamp the lower pressure plate (10).

Images