Composite welding device for steel pipe assembly

Abstract

The utility model relates to the technical field of steel pipe welding, and discloses a composite welding device for a steel pipe assembly, which comprises a welding table, a welding frame is mounted in the middle of the top end of the welding table, a welding component is mounted on the welding frame, a welding head is mounted on the welding component, a dust collection box is arranged below the welding frame, and a dust collection box is arranged below the dust collection box. Electric push rods are installed on the two sides of the top end of the dust suction box, dust suction plates are installed at the output ends of the electric push rods, fixed sliding rails are installed on the two sides of the top end of the welding table, and adjusting lead screws are movably connected into the fixed sliding rails. According to the composite welding device for the steel pipe assembly, a clamping air cylinder pushes a clamping plate to clamp and fix a steel pipe, then the steel pipe supporting position of a clamping ring is adjusted according to the length of the steel pipe, a first hydraulic cylinder pushes the clamping ring to move to a proper position, and then the steel pipe is clamped and fixed through the clamping air cylinder; and the clamping ring can widen the clamping and supporting range of the steel pipe, and the problem that stable butt welding is inconvenient is solved.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe welding technology, specifically a composite welding device for steel pipe assemblies. Background Technology

[0002] Steel pipes are steel materials with a hollow cross-section, whose length is much greater than its diameter or circumference. Steel pipes can be divided into those for conveying pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, and high-pressure equipment.

[0003] When steel pipes are produced and processed, welding equipment is required to weld them. When composite welding equipment welds steel pipes, clamping equipment is required to clamp and limit the steel pipes. However, some steel pipes are long and the clamping range of the clamping components is small. During the butt welding process, because the tail of the steel pipe is long and not supported and clamped, the tail of the steel pipe is heavy and will cause the welded area of ​​the steel pipe to lift up, thus affecting the stability of the steel pipe weld.

[0004] There is an urgent need for a composite welding device for steel pipe assemblies to solve the technical defects mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a composite welding device for steel pipe assemblies to solve the problem of inconvenient and unstable butt welding mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a composite welding device for steel pipe assemblies, comprising a welding table, a welding frame installed at the middle position of the top of the welding table, a welding assembly installed on the welding frame, a welding head installed on the welding assembly, a dust collection box arranged below the welding frame, electric push rods installed on both sides of the top of the dust collection box, a dust collection plate installed at the output end of the electric push rods, fixed slide rails installed on both sides of the top of the welding table, and an adjusting screw movably connected inside the fixed slide rails. A drive sleeve is installed on the outside of the lead screw. A fixed plate is fixedly connected to the top of the drive sleeve. Second hydraulic cylinders are installed on both sides of the top of the fixed plate. A clamping tube is installed at the output end of the second hydraulic cylinder. A first hydraulic cylinder is installed on the side of the clamping tube away from the welding frame. A clamping ring is installed at the output end of the first hydraulic cylinder. A clamping cylinder is installed on the outside of both the clamping ring and the clamping tube. A clamping plate is fixedly connected to the output end of the clamping cylinder. A clamping pad is installed on the inner side of the clamping plate. A drive motor is installed on the fixed slide rail.

[0007] As a further technical solution of this utility model, the clamping ring and the clamping tube have the same diameter, and the clamping pad is made of rubber.

[0008] As a further technical solution of this utility model, the clamping plate is provided in three sets, and the clamping plate is distributed in a ring inside the clamping ring and the clamping tube.

[0009] As a further technical solution of this utility model, the top of the dust collection box is provided with a connection port, the bottom of the dust collection plate is fixedly connected with a telescopic tube, and the telescopic tube is connected to the connection port. The dust collection plate is provided with dust collection ports evenly arranged inside.

[0010] As a further technical solution of this utility model, the dust suction port is connected to the telescopic tube, and the dust suction plate is arc-shaped.

[0011] As a further technical solution of this utility model, a purification filter cloth is installed inside the dust collection box, and a dust collection pump is installed at the bottom right side of the dust collection box.

[0012] As a further technical solution of this utility model, the bottom end of the fixed slide rail is fixedly connected to a limiting slide rail, and the bottom end of the driving slide sleeve is slidably connected to the outside of the limiting slide rail.

[0013] As a further technical solution of this utility model, the output end of the drive motor is connected to the adjusting screw, the top end of the fixed slide rail is provided with a reserved slide groove, and the drive slide sleeve passes through the reserved slide groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the composite welding device of the steel pipe assembly not only realizes the functions of easy and stable docking and easy cleaning of flue gas, but also realizes the functions of easy and stable feeding.

[0015] (1) By setting up a clamping tube, a clamping cylinder, a first hydraulic cylinder, a clamping ring, a second hydraulic cylinder, a clamping plate and a clamping pad, the steel pipe is placed inside the clamping tube before welding. The clamping cylinder pushes the clamping plate to clamp and fix the steel pipe. Then, the position of the clamping ring supporting the steel pipe is adjusted according to the length of the steel pipe. The first hydraulic cylinder pushes the clamping ring to a suitable position and then clamps and fixes the steel pipe through the clamping cylinder. The clamping ring can increase the range of clamping and supporting the steel pipe and avoid the problem of the steel pipe being unable to be welded smoothly due to the excessive weight at the tail when butt welding. This structure realizes the function of facilitating smooth welding.

[0016] (2) By setting up a dust suction plate, electric push rod, dust suction box, purification filter cloth, telescopic tube and dust suction port, the welding assembly will generate fumes during the welding of steel pipe. At this time, the dust suction plate moves to the welding area, and the dust suction pump on the dust suction box can suck the fumes into the dust suction box. The fumes enter the dust suction box through the dust suction port of the dust suction plate. The purification filter cloth inside the dust suction box filters the fumes and then discharges them. The electric push rod can flexibly adjust the dust suction height of the dust suction plate according to the welding height. This structure realizes the function of convenient and flexible dust suction.

[0017] (3) By setting a fixed slide rail, adjusting screw, driving sleeve, driving motor and limiting slide, the steel pipe to be welded is installed inside the clamping pipe. Then the driving motor drives the adjusting screw inside the fixed slide rail to rotate, and the driving sleeve outside the adjusting screw drives the steel pipe to move towards the welding position. This structure realizes the function of feeding steel pipe in a convenient, flexible and stable manner. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a side view of the clamping tube structure of this utility model;

[0020] Figure 3 This is a front view cross-sectional structural diagram of the dust collection plate of this utility model;

[0021] Figure 4 This is a side view of the dust collection plate structure of this utility model.

[0022] In the diagram: 1. Welding table; 2. Fixed slide rail; 3. Adjusting screw; 4. Drive sleeve; 5. Clamping tube; 6. Welding frame; 7. Welding head; 8. Welding assembly; 9. Dust collection plate; 10. Electric actuator; 11. Dust collection box; 12. Clamping cylinder; 13. First hydraulic cylinder; 14. Clamping ring; 15. Second hydraulic cylinder; 16. Drive motor; 17. Limiting slide; 18. Fixed plate; 19. Clamping plate; 20. Clamping pad; 21. Purification filter cloth; 22. Telescopic tube; 23. Dust collection port; 24. Dust collection pump; 25. Connection port. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This utility model provides an embodiment of a composite welding device for steel pipe assemblies, comprising a welding table 1, a welding frame 6 installed at the middle position of the top of the welding table 1, a welding assembly 8 installed on the welding frame 6, a welding head 7 installed on the welding assembly 8, a dust collection box 11 arranged below the welding frame 6, electric push rods 10 installed on both sides of the top of the dust collection box 11, a dust collection plate 9 installed at the output end of the electric push rods 10, fixed slide rails 2 installed on both sides of the top of the welding table 1, an adjusting screw 3 movably connected inside the fixed slide rail 2, and a drive mechanism installed outside the adjusting screw 3. The top of the moving slide sleeve 4 is fixedly connected to a fixed plate 18. The top two sides of the fixed plate 18 are equipped with second hydraulic cylinders 15. The output end of the second hydraulic cylinder 15 is equipped with a clamping tube 5. The side of the clamping tube 5 away from the welding frame 6 is equipped with a first hydraulic cylinder 13. The output end of the first hydraulic cylinder 13 is equipped with a clamping ring 14. The clamping ring 14 and the outside of the clamping tube 5 are both equipped with clamping cylinders 12. The output end of the clamping cylinder 12 is fixedly connected to a clamping plate 19. The inner side of the clamping plate 19 is equipped with a clamping pad 20. The fixed slide rail 2 is equipped with a drive motor 16.

[0025] The clamping ring 14 has the same diameter as the clamping tube 5. The clamping pad 20 is made of rubber. There are three sets of clamping plates 19, which are arranged in a ring inside the clamping ring 14 and the clamping tube 5.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, the steel pipe is placed inside the clamping tube 5, and the clamping cylinder 12 pushes the clamping plate 19 to clamp and fix the steel pipe. Then, the position of the clamping ring 14 supporting the steel pipe is adjusted according to the length of the steel pipe. The first hydraulic cylinder 13 pushes the clamping ring 14 to a suitable position, and then the clamping cylinder 12 clamps and fixes the steel pipe. The clamping ring 14 can increase the range of clamping and supporting the steel pipe and improve the stability of welding.

[0027] The top of the dust collection box 11 is provided with a connection port 25, and the bottom of the dust collection plate 9 is fixedly connected with a telescopic tube 22, which is connected to the connection port 25. The dust collection plate 9 is evenly provided with dust collection ports 23, which are connected to the telescopic tube 22. The dust collection plate 9 is arc-shaped. The dust collection box 11 is equipped with a purification filter cloth 21. The bottom right side of the dust collection box 11 is equipped with a dust pump 24.

[0028] Specifically, such as Figure 1 , Figure 3 and Figure 4As shown, during welding, the electric actuator 10 pushes the dust suction plate 9 upward to the welding area. The dust suction pump 24 on the dust suction box 11 can suck the fumes into the dust suction box 11. The fumes enter the dust suction box 11 through the dust suction port 23 of the dust suction plate 9. The purification filter cloth 21 inside the dust suction box 11 filters the fumes and then discharges them. The electric actuator 10 can flexibly adjust the suction height of the dust suction plate 9 according to the welding height.

[0029] The bottom of the fixed slide rail 2 is fixedly connected to the limiting slide rail 17. The bottom of the drive slide sleeve 4 is slidably connected to the outside of the limiting slide rail 17. The output end of the drive motor 16 is connected to the adjusting screw 3. The top of the fixed slide rail 2 is provided with a reserved slide groove, and the drive slide sleeve 4 passes through the reserved slide groove.

[0030] Specifically, such as Figure 1 As shown, the steel pipe to be welded is installed inside the clamping tube 5. Then, the drive motor 16 drives the adjusting screw 3 inside the fixed slide rail 2 to rotate. The drive sleeve 4 outside the adjusting screw 3 drives the steel pipe to move towards the welding position. During the movement of the drive sleeve 4, the limiting slide 17 can improve the stability of the movement of the drive sleeve 4.

[0031] Working principle: In use, the steel pipe is first placed inside the clamping tube 5. The clamping cylinder 12 pushes the clamping plate 19 to clamp and fix the steel pipe. Then, the position of the clamping ring 14 supporting the steel pipe is adjusted according to the length of the steel pipe. The first hydraulic cylinder 13 pushes the clamping ring 14 to a suitable position, and then the clamping cylinder 12 clamps and fixes the steel pipe. The clamping ring 14 can increase the range of clamping and supporting the steel pipe. Subsequently, the drive motor 16 drives the adjusting screw 3 inside the fixed slide rail 2 to rotate, and the external drive of the adjusting screw 3... The sliding sleeve 4 moves the steel pipe toward the welding position for docking. During the welding process of the welding component 8, fumes are generated. At this time, the dust suction plate 9 moves up to the welding area. The dust suction pump 24 on the dust suction box 11 can suck the fumes into the dust suction box 11. The fumes enter the dust suction box 11 through the dust suction port 23 of the dust suction plate 9. The purification filter cloth 21 inside the dust suction box 11 filters the fumes and then discharges them. The electric push rod 10 can flexibly adjust the suction height of the dust suction plate 9 according to the welding height. This structure realizes the function of convenient and flexible dust suction.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A composite welding device for a steel pipe assembly, comprising a welding table (1), characterized in that: The welding frame (6) is installed at the middle position of the top end of the welding table (1), the welding assembly (8) is installed on the welding frame (6), the welding head (7) is installed on the welding assembly (8), the dust collection box (11) is arranged below the welding frame (6), the electric push rod (10) is installed on both sides of the top end of the dust collection box (11), the dust collection plate (9) is installed on the output end of the electric push rod (10), the fixed sliding rail (2) is installed on both sides of the top end of the welding table (1), the adjusting lead screw (3) is movably connected in the fixed sliding rail (2), the driving sliding sleeve (4) is installed on the outside of the adjusting lead screw (3), the fixed plate (18) is fixedly connected to the top end of the driving sliding sleeve (4), the second hydraulic cylinder (15) is installed on both sides of the top end of the fixed plate (18), the clamping pipe (5) is installed on the output end of the second hydraulic cylinder (15), the first hydraulic cylinder (13) is installed on the side, away from the welding frame (6), of the clamping pipe (5), the clamping ring (14) is installed on the output end of the first hydraulic cylinder (13), the clamping air cylinder (12) is installed on the outside of the clamping ring (14) and the clamping pipe (5), the clamping plate (19) is fixedly connected to the output end of the clamping air cylinder (12), the clamping pad (20) is installed on the inner side of the clamping plate (19), and the driving motor (16) is installed on the fixed sliding rail (2).

2. A composite welding apparatus for a steel pipe assembly as defined in claim 1, wherein: The diameter of the clamping ring (14) is the same as that of the clamping pipe (5), and the clamping pad (20) is made of rubber.

3. A composite welding apparatus for a steel pipe assembly as defined in claim 1 wherein: The clamping plate (19) is provided in three groups, and the clamping plate (19) is annularly distributed in the inside of the clamping ring (14) and the clamping pipe (5).

4. The composite welding apparatus for a steel pipe assembly of claim 1, wherein: The top end of the dust collection box (11) is provided with a connecting port (25), the bottom end of the dust collection plate (9) is fixedly connected with a telescopic pipe (22), the telescopic pipe (22) is connected with the connecting port (25), and the inside of the dust collection plate (9) is uniformly provided with a dust collection port (23).

5. A composite welding apparatus for a steel pipe assembly as defined in claim 4 wherein: The dust collection port (23) is connected with the telescopic pipe (22), and the dust collection plate (9) is in a circular arc shape.

6. A composite welding apparatus for a steel pipe assembly as defined in claim 1 wherein: The inside of the dust collection box (11) is installed with a purification filter cloth (21), and the bottom end of the right side of the dust collection box (11) is installed with a dust collection pump (24).

7. A composite welding apparatus for a steel pipe assembly as defined in claim 1 wherein: The bottom end of the inside of the fixed sliding rail (2) is fixedly connected with a limiting sliding channel (17), and the bottom end of the driving sliding sleeve (4) is slidably connected outside the limiting sliding channel (17).

8. The composite welding apparatus for a steel pipe assembly of claim 1, wherein: The output end of the driving motor (16) is connected with the adjusting lead screw (3), the top end of the fixed sliding rail (2) is provided with a reserved sliding groove, and the driving sliding sleeve (4) penetrates through the reserved sliding groove.

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