Welding machine for welding heat exchanger pipeline

Abstract

The utility model relates to the technical field of welding, and discloses a welding machine for welding a heat exchanger pipeline, which comprises a shell, a fan is fixedly connected to the top end of the shell, a rotating shaft is fixedly connected to the bottom end of the fan, a crank is fixedly connected to the bottom end of the rotating shaft, and a U-shaped frame is fixedly connected to the bottom end of the crank. The bottom end of the U-shaped frame is rotationally connected with a rod sleeve, the interior of the rod sleeve is rotationally connected with a connecting rod, the exterior of the connecting rod is fixedly connected with a plurality of impact hammers, and a collecting mechanism is arranged at the bottom end of the interior of the shell and used for collecting welding slag. According to the device, the draught fan is started to blow air to a welding seam to rapidly cool the welding seam, the draught fan drives the rotating shaft to enable the U-shaped frame to swing back and forth through the crank when rotating, a pipeline vibrates to shake off welding slag, the effect of rapidly cleaning the welding slag through the impact mechanism is achieved, the welding treatment efficiency is improved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding machine for welding heat exchanger pipes. Background Art

[0002] Heat exchanger pipe welding machines are mainly used for pipe welding in the heat exchanger manufacturing process, especially in large-scale production lines. They can significantly improve welding efficiency and welding quality. Modern heat exchanger pipe welding machines usually adopt automated or semi-automated designs to adapt to different welding requirements and environments.

[0003] Heat exchanger pipe welding machine is an indispensable equipment in modern industrial manufacturing. It plays an important role in improving production efficiency and welding quality. Choosing the right welding machine can not only meet production needs, but also bring long-term economic benefits.

[0004] In the prior art, most welding machines for welding heat exchanger pipes are not equipped with an automatic slag processing mechanism. The slag on the weld needs to be processed manually using a steel wool or by pickling the welded pipe, which is time-consuming and labor-intensive, reduces the welding efficiency of the pipe, and reduces the practicality of the device. Summary of the Invention

[0005] In order to make up for the above shortcomings, the utility model provides a welding machine for welding heat exchanger pipes, aiming to improve the problems of low welding efficiency and low practicality of the device caused by the fact that most welding machines for welding heat exchanger pipes in the existing technology are not equipped with an automatic slag processing mechanism.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a welding machine for welding heat exchanger pipes, comprising a shell, the top end of the shell is fixedly connected to a fan, the bottom end of the fan is fixedly connected to a rotating shaft, the bottom end of the rotating shaft is fixedly connected to a crank, the bottom end of the crank is fixedly connected to a U-shaped frame, the bottom end of the U-shaped frame is rotatably connected to a rod sleeve, the inside of the rod sleeve is rotatably connected to a connecting rod, the outside of the connecting rod is fixedly connected to several impact hammers, and the inner bottom end of the shell is provided with a collecting mechanism, which is used to collect welding slag.

[0007] As a further description of the above technical solution:

[0008] The collecting mechanism includes a collecting box, the bottom end of the collecting box is fixedly slidably mounted on the inner bottom end of the outer shell, connecting plates are fixedly connected on both sides of the collecting box, the inner bottom end of the outer shell is fixedly connected to two mounting shells, springs are fixedly connected to the interiors of the two mounting shells, limiting plates are fixedly connected on opposite sides of the two springs, pins are fixedly connected to the interiors of the two limiting plates, the tops of the two mounting shells are fixedly connected to fixed shells, slides are slidably connected to the interiors of the two fixed shells, and blocking plates are fixedly connected on opposite sides of the two slides.

[0009] As a further description of the above technical solution:

[0010] The outside of the connecting rod is rotatably connected to a mounting bracket, and the top end of the mounting bracket is fixedly connected to the inner top end of the shell.

[0011] As a further description of the above technical solution:

[0012] The inner bottom end of the shell is fixedly connected with a mounting seat, and the top of the mounting seat is fixedly connected with a welding gun.

[0013] As a further description of the above technical solution:

[0014] The inner top end of the shell is fixedly connected to two support columns, the top ends of the two support columns are fixedly connected to support frames, and the top ends of the two support frames are provided with pipes.

[0015] As a further description of the above technical solution:

[0016] The two limiting plates are both slidably connected to the interiors of the two mounting shells, and the two pin rods are both engaged with the two collecting boxes.

[0017] As a further description of the above technical solution:

[0018] The opposite sides of the two pin rods are both fixedly connected with handles.

[0019] As a further description of the above technical solution:

[0020] The bottoms of the two blocking plates are in contact with the tops of the two limiting plates.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the pipes to be welded are placed on the support frame respectively, the welding gun is started for welding, and after the welding is completed, the weld is initially cooled and formed, and the fan is started to blow air to quickly cool the weld. When the fan rotates, it drives the rotating shaft through the crank to make the U-shaped frame swing back and forth, drives the rod sleeve to make the connecting rod rotate back and forth, and drives the impact hammer to hit the pipe, so that the pipe vibrates and the welding slag is shaken off, thereby achieving the effect of quickly cleaning the welding slag through the impact mechanism, and there is no need to manually use tools or pickling to process the welding slag, thereby improving the processing efficiency of welding and improving the practicality of the device.

[0023] 2. In the present invention, the welding slag is shaken and falls into the collection box. When the welding slag in the collection box needs to be cleaned, the collection box can be removed, and the pin rod is pulled to both sides by the handle to release the engagement with the collection box. The spring is compressed by the limit plate, and when the limit plate moves to both sides, the blocking plate will fall to prevent the limit plate from driving the pin rod to rebound. After the collection box is removed and the welding slag is cleaned, it will be put back. The blocking plate is lifted by the slide plate, and the limit plate will drive the pin rod to re-engage and fix with the collection box under the push of the spring rebound force, thereby achieving the effect of collecting and processing welding slag by the collection mechanism, and the collection box is easy to disassemble, and the welding slag can be cleaned more quickly, thereby improving the efficiency of welding operation and the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a welding machine for welding heat exchanger pipes proposed in the present invention;

[0025] Figure 2 This is a schematic diagram of an impact mechanism of a welding machine for welding heat exchanger pipes proposed in the present invention;

[0026] Figure 3 This is a schematic diagram of a collection box of a welding machine for welding heat exchanger pipes proposed in the present invention;

[0027] Figure 4 This is a cross-sectional view of the installation shell of a welding machine for welding heat exchanger pipes proposed by the utility model.

[0028] Legend:

[0029] 1. Outer shell; 2. Mounting base; 3. Welding gun; 4. Support column; 5. Support frame; 6. Pipeline; 7. Fan; 8. Rotating shaft; 9. Mounting frame; 10. Crank; 11. U-shaped frame; 12. Rod sleeve; 13. Connecting rod; 14. Impact hammer; 15. Collection box; 16. Connecting plate; 17. Mounting shell; 18. Spring; 19. Limit plate; 20. Pin rod; 21. Handle; 22. Fixed shell; 23. Slide plate; 24. Blocking plate. DETAILED DESCRIPTION

[0030] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 - Figure 2 The utility model provides an embodiment of a welding machine for welding heat exchanger pipes, comprising a shell 1, which plays a role in fixing the internal structure. The top of the shell 1 is fixedly connected to a fan 7, which starts to dissipate heat quickly and rotates the rotating shaft 8. The bottom end of the fan 7 is fixedly connected to the rotating shaft 8, which plays the role of connecting the crank 10 for transmission. The bottom end of the rotating shaft 8 is fixedly connected to the crank 10, which plays the role of connecting the U-shaped frame 11 for transmission. The bottom end of the crank 10 is fixedly connected to the U-shaped frame 11, which plays the role of connecting the rod sleeve 12 for transmission. The bottom end of the U-shaped frame 11 is rotatably connected to the rod sleeve 12, which plays the role of fixing the connecting rod 13. The rod sleeve 12 is internally rotatably connected to the connecting rod 13, which plays the role of connecting the impact hammer 14 for transmission. The outside of the connecting rod 13 is fixedly connected to a plurality of impact hammers 14, which play the role of striking the pipe 6. The inner bottom end of the shell 1 is provided with a collecting mechanism for collecting welding slag.

[0032] Reference Figure 3 - Figure 4The collecting mechanism includes a collecting box 15, which collects the fallen welding slag. The bottom end of the collecting box 15 is fixedly slid on the inner bottom end of the shell 1. Both sides of the collecting box 15 are fixedly connected with connecting plates 16. The connecting plates 16 connect the collecting box 15 to the mounting shell 17. The inner bottom end of the shell 1 is fixedly connected with two mounting shells 17. The mounting shell 17 fixes the internal structure. The interiors of the two mounting shells 17 are fixedly connected with springs 18. The springs 18 provide elastic force. The opposite sides of the two springs 18 are fixedly connected. There is a limit plate 19, which prevents the spring 18 from falling off. The inside of the two limit plates 19 is fixedly connected with a pin rod 20, which fixes the collection box 15. The tops of the two mounting shells 17 are fixedly connected with a fixed shell 22, which fixes the internal structure. The insides of the two fixed shells 22 are slidably connected with a slide plate 23, which connects the blocking plate 24. The opposite sides of the two slide plates 23 are fixedly connected with a blocking plate 24, which prevents the limit plates 19 from rebounding. The external rotation of the connecting rod 13 is connected to the mounting bracket 9, which serves to stabilize the connecting rod 13. The top of the mounting bracket 9 is fixedly connected to the internal top of the outer shell 1, and the internal bottom end of the outer shell 1 is fixedly connected to the mounting seat 2. The top of the mounting seat 2 is fixedly connected to the welding gun 3. The internal top of the outer shell 1 is fixedly connected to two support columns 4, which serve to connect the support frame 5. The tops of the two support columns 4 are fixedly connected to the support frame 5, which serves to support the pipe 6. The tops of the two support frames 5 are both provided with pipes 6. The two limit plates 19 are both slidably connected to the inside of the two mounting shells 17, and the two pin rods 20 are both engaged with the two collection boxes 15. The opposite sides of the two pin rods 20 are fixedly connected with handles 21, and the bottoms of the two blocking plates 24 are both in contact with the tops of the two limit plates 19.

[0033] Working principle: Place the pipes 6 to be welded on the support frame 5 respectively, start the welding gun 3 for welding, and after welding is completed, wait for the weld to be initially cooled and formed, start the fan 7 to blow air to quickly cool the weld. When the fan 7 rotates, it drives the rotating shaft 8 through the crank 10 to make the U-shaped frame 11 swing back and forth, drives the rod sleeve 12 to make the connecting rod 13 rotate back and forth, and drives the impact hammer 14 to hit the pipe 6, so that the pipe 6 vibrates and shakes off the welding slag.

[0034] The welding slag is shaken into the collection box 15. When the welding slag in the collection box 15 needs to be cleaned, the collection box 15 can be removed, and the pin rod 20 can be pulled to both sides by the handle 21 to release it from the engagement with the collection box 15. The spring 18 is compressed by the limit plate 19. When the limit plate 19 moves to both sides, the blocking plate 24 will fall to prevent the limit plate 19 from driving the pin rod 20 to rebound. After removing the collection box 15 to clean the welding slag, it will be put back. The blocking plate 24 can be lifted by the slide plate 23. The limit plate 19 will drive the pin rod 20 to be re-engaged with the collection box 15 under the push of the rebound force of the spring 18.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A welding machine for welding heat exchanger pipes, comprising a housing (1), characterized in that: The top end of the housing (1) is fixedly connected to a fan (7), the bottom end of the fan (7) is fixedly connected to a rotating shaft (8), the bottom end of the rotating shaft (8) is fixedly connected to a crank (10), the bottom end of the crank (10) is fixedly connected to a U-shaped frame (11), the bottom end of the U-shaped frame (11) is rotatably connected to a rod sleeve (12), the inside of the rod sleeve (12) is rotatably connected to a connecting rod (13), the outside of the connecting rod (13) is fixedly connected to a plurality of impact hammers (14), and the bottom end of the interior of the housing (1) is provided with a collecting mechanism for collecting welding slag.

2. The welding machine for welding heat exchanger pipes according to claim 1, characterized in that: The collecting mechanism comprises a collecting box (15), the bottom end of the collecting box (15) is fixedly slidably connected to the inner bottom end of the shell (1), both sides of the collecting box (15) are fixedly connected to connecting plates (16), the inner bottom end of the shell (1) is fixedly connected to two mounting shells (17), the interiors of the two mounting shells (17) are fixedly connected to springs (18), the opposite sides of the two springs (18) are fixedly connected to limiting plates (19), the interiors of the two limiting plates (19) are fixedly connected to pin rods (20), the tops of the two mounting shells (17) are fixedly connected to fixed shells (22), the interiors of the two fixed shells (22) are slidably connected to slide plates (23), and the opposite sides of the two slide plates (23) are fixedly connected to blocking plates (24).

3. The welding machine for welding heat exchanger pipes according to claim 1, characterized in that: The outside of the connecting rod (13) is rotatably connected to a mounting frame (9), and the top end of the mounting frame (9) is fixedly connected to the inner top end of the housing (1).

4. The welding machine for welding heat exchanger pipes according to claim 1, characterized in that: The inner bottom end of the housing (1) is fixedly connected to a mounting seat (2), and the top of the mounting seat (2) is fixedly connected to a welding gun (3).

5. The welding machine for welding heat exchanger pipes according to claim 1, characterized in that: Two support columns (4) are fixedly connected to the inner top of the housing (1), the tops of the two support columns (4) are fixedly connected to support frames (5), and the tops of the two support frames (5) are provided with pipes (6).

6. The welding machine for welding heat exchanger pipes according to claim 2, characterized in that: The two limiting plates (19) are both slidably connected to the interiors of the two mounting shells (17), and the two pin rods (20) are both engaged with the two collecting boxes (15).

7. The welding machine for welding heat exchanger pipes according to claim 2, characterized in that: The two pin rods (20) are fixedly connected to opposite sides with handles (21).

8. The welding machine for welding heat exchanger pipes according to claim 2, characterized in that: The bottoms of the two blocking plates (24) are in contact with the tops of the two limiting plates (19).

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