A steel pipe welding machine

Abstract

This utility model relates to the field of welding equipment technology and discloses a steel pipe welding machine, including a machine tool. A hydraulic press is fixedly connected to the upper surface of the equipment platform. A left module is provided on the upper surface of the machine tool, and a right module is fixedly connected to the upper surface of the machine tool. A cylinder is fixedly connected inside the column box, and an alignment clamp is fixedly connected to the bottom of the pressure rod. This utility model has the following advantages and effects: After starting the hydraulic press, the output end of the press drives the left module to move to the right to connect two steel pipes. Then, the worker starts the cylinder to drive the pressure rod to simultaneously contact the upper surfaces of the two connected steel pipes, ensuring that the upper surfaces of the two connected steel pipes are at the same horizontal line. Then, the welding torch is used to weld the joint of the two connected steel pipes. Through the above operations, the alignment of the steel pipe joints and the welding effect are achieved.

Description

Technical Field

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

[0002] Steel pipe welding is a method of joining workpieces by heating or pressurizing, or both, with or without filler material. Welding can save metal materials, reduce the weight of the structure, and provide high strength and good sealing performance.

[0003] In the prior art, such as the stainless steel pipe welding machine disclosed in Chinese Patent Publication No. CN219852620U, the machine includes: a lower fixed base; a lower cylinder body disposed on the lower fixed base for placing the stainless steel pipe; a connecting frame mounted on the lower fixed base, a mounting frame fixed on the connecting frame, an upper cylinder body aligned with the lower cylinder body on the mounting frame, and an upper fixed base disposed on the outer side of the upper cylinder body; a laser welding assembly movably connected to the lower fixed base; a positioning mechanism disposed inside the upper and lower fixed bases; and an adjustment mechanism disposed at the bottom of the lower cylinder body. This stainless steel pipe welding machine achieves circumferential welding through the laser welding assembly, thereby completing the welding of the stainless steel pipe. The process can be controlled by a PLC control system, eliminating the need for manual welding, saving labor intensity, improving welding efficiency, and ensuring uniform welding speed, resulting in aesthetically pleasing welds, high connection strength, and improved practicality.

[0004] In actual production, although this type of stainless steel pipe welding machine can also weld steel pipes, the joints of the two steel pipes need to be aligned before welding. However, this type of stainless steel pipe welding machine does not have a limit device for aligning the joints of the steel pipes, which may result in a large gap between the joints of the two steel pipes, thus affecting the welding effect and causing the device to be ineffective. Therefore, it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a steel pipe welding machine that has the effect of aligning the joints of steel pipes and achieving excellent welding results.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a steel pipe welding machine includes a machine tool, an equipment platform fixedly connected to the outside of the machine tool, a hydraulic press fixedly connected to the upper surface of the equipment platform, a left module and a right module fixedly connected to the upper surface of the machine tool, a circular concave plate on the outside of the left module, a bearing ring rotatably connected to the outside of the right module, a vertical rod fixedly connected to the outside of the machine tool, a horizontal rod fixedly connected to the upper surface of the vertical rod, a column box fixedly connected to the outside of the horizontal rod, a cylinder fixedly connected to the inside of the column box, an air hole opened inside the column box, a pressure rod on the outside of the column box, the output end of the cylinder passing through the air hole and fixedly connected to the pressure rod, a positioning clamp fixedly connected to the bottom of the pressure rod, a turntable on the outside of the machine tool, an arc rod on the outside of the machine tool, the arc rod rotatably connected to the turntable, a welding torch fixedly connected to the outside of the arc rod, and rollers on the upper surface of the machine tool.

[0007] By adopting the above technical solution, before welding the steel pipes, the worker places two steel pipes on the upper surface of the roller, inserts one end of each steel pipe into the collar, and then connects one end of each steel pipe to the concave disc and bearing ring respectively. Next, the worker starts the hydraulic press, and the output end of the hydraulic press drives the left module to move to the right, causing one of the steel pipes to move to the right, thus aligning the other end of one steel pipe with the other. After the two steel pipes are aligned, the worker starts the pneumatic press, and the output end of the pneumatic press drives the pressure rod downwards, causing the pressure rod to simultaneously contact the upper surfaces of the two aligned steel pipes with the upper surfaces of the two aligned steel pipes. This ensures that the upper surfaces of the two aligned steel pipes are at the same horizontal line, resulting in a tight fit at the joint. Then, a welding torch is used to weld the joint of the two aligned steel pipes. Through the above operations, the alignment of the joints of the two steel pipes is ensured before welding, achieving excellent alignment of the steel pipe interfaces and a superior welding effect.

[0008] A further feature of this invention is that a slide rail is fixedly connected to the upper surface of the machine tool, and a slide groove is provided inside the left module, with the slide rail and the slide groove being slidably connected.

[0009] By adopting the above technical solution, the sliding connection between the slide rail and the slide groove facilitates the smooth movement of the left module to the right after being subjected to force.

[0010] A further feature of this invention is that a rotating hole is provided inside the left module, and a motor is fixedly connected inside the left module. The output end of the motor passes through the rotating hole and is fixedly connected to the circular concave plate.

[0011] By adopting the above technical solution, when welding after aligning the interfaces of two steel pipes, the motor is started to drive the circular concave plate to rotate, thereby causing the two aligned steel pipes to rotate simultaneously, which facilitates the welding torch to weld around the interface of the two aligned steel pipes.

[0012] A further feature of this invention is that a scale is fixedly connected to the outside of the machine tool, and the upper surface of the scale is provided with scale values.

[0013] By adopting the above technical solution, the scale value set on the upper surface of the ruler provides a reference for the distance the left module moves to the right.

[0014] A further feature of this invention is that a collar bracket is fixedly connected to the upper surface of the machine tool, and a collar is fixedly connected to the upper surface of the collar bracket.

[0015] By adopting the above technical solution, when the two aligned steel pipes are rotated simultaneously under force, they rotate inside the collar, thereby reducing the amplitude caused by the rotation of the two steel pipes under force.

[0016] A further feature of this invention is that an angular casting is fixedly connected to the outside of the machine tool, and a rotating rod is rotatably connected to the outside of the angular casting, with the rotating rod being fixedly connected to a roller.

[0017] By adopting the above technical solution, the roller can rotate after being subjected to force by the rotating rod. When the two aligned steel pipes are subjected to force and rotate simultaneously, the upper surface of the roller also drives the roller to rotate, thereby enabling the two steel pipes to rotate smoothly.

[0018] A further feature of this invention is that a handle is fixedly connected to the outside of the arc rod, and the number of handles is two.

[0019] By adopting the above technical solution, the worker holds the handle to rotate the arc rod, thereby moving the welding torch to the joint of the two aligned steel pipes to weld the steel pipes.

[0020] A further feature of this invention is that a fan is fixedly connected to the outside of the crossbar, and the number of fans is two.

[0021] By adopting the above technical solution, the fan is turned on to cool the joint of the two welded steel pipes.

[0022] A further feature of this invention is that both the concave disc and the bearing ring have a threaded layer inside, and the thickness of the threaded layer is three centimeters.

[0023] By adopting the above technical solution, the three-centimeter thread layer increases the frictional force generated when one end of the steel pipe contacts the inner wall of the concave disc and bearing ring, which facilitates the rotation of the two aligned steel pipes by the concave disc and bearing ring under force.

[0024] A further feature of this invention is that a wheel bracket is fixedly connected to the bottom of the alignment caliper, and an auxiliary wheel is rotatably connected to the outside of the wheel bracket.

[0025] By adopting the above technical solution, after the positioning caliper contacts the steel pipe, when the steel pipe is rotated under force, the auxiliary wheel rotates on the surface of the steel pipe to prevent the positioning caliper from generating a large resistance on the surface of the rotating steel pipe.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the arrangement of a machine tool, equipment platform, hydraulic press, left module, right module, circular concave plate, bearing ring, vertical rod, horizontal rod, column box, cylinder, air hole, pressure rod, alignment caliper, turntable, arc rod, welding torch, and roller, allows the worker to place two steel pipes on the upper surface of the roller before welding them. One end of each pipe is inserted into the collar, and then the other end is connected to the circular concave plate and bearing ring respectively. Next, the worker starts the hydraulic press, which begins to work. The output of the hydraulic press drives the left module to move to the right, causing one of the steel pipes to move to the right, thereby connecting the other end of the steel pipe to the roller. The other end of the other steel pipe is connected. After the two steel pipes are connected, the worker starts the cylinder machine. The cylinder machine starts working, and the output end of the cylinder machine drives the pressure rod to move downward. The pressure rod drives the two alignment clamps to contact the upper surfaces of the two connected steel pipes simultaneously, ensuring that the upper surfaces of the two connected steel pipes are at the same horizontal line. This ensures that the joint of the two connected steel pipes fits perfectly. Then, the welding gun is used to weld the joint of the two connected steel pipes. Through the above operations, it is ensured that the joint of the two steel pipes is aligned before welding, achieving the effect of aligning the steel pipe joints and the welding effect.

[0028] 2. This utility model, through the arrangement of slide rails, slide grooves, rotating holes, motors, scales, collar brackets, collars, angular castings, rotating rods, handles, fans, threaded layers, brackets, and auxiliary wheels, allows the slide rails and slide grooves to slide smoothly to the right after being subjected to force. When welding after aligning the interfaces of the two steel pipes, starting the motor causes the output end of the motor to drive the circular concave plate to rotate, thereby causing the two aligned steel pipes to rotate simultaneously. This facilitates the welding torch to weld around the interface of the two aligned steel pipes. The scale value set on the upper surface of the scale provides a reference for the distance the left module moves to the right. When the two aligned steel pipes rotate simultaneously under force, they rotate inside the collar, thereby reducing the amplitude caused by the rotation of the two steel pipes under force. The roller is rotated after being subjected to force by the rotating rod. When the two aligned steel pipes rotate simultaneously under force, the upper surface of the roller also drives the roller to rotate, thus making the two steel pipes rotate smoothly. The worker holds the handle and rotates the arc rod, which then moves the welding torch to the joint of the two aligned steel pipes for welding. The fan is turned on to cool the joint of the two welded steel pipes. The three-centimeter thread layer increases the friction between one end of the steel pipe and the inner wall of the concave disc and bearing ring, which facilitates the rotation of the two aligned steel pipes by the concave disc and bearing ring under force. After the alignment caliper contacts the steel pipe, when the steel pipe rotates under force, the auxiliary wheel rotates on the surface of the steel pipe to prevent the alignment caliper from generating too much resistance on the surface of the rotating steel pipe. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the motor and concave disc structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the cylinder and pressure rod structure of this utility model;

[0033] Figure 4 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0034] In the diagram, 1. Machine tool; 2. Equipment platform; 3. Hydraulic press; 4. Left module; 5. Right module; 6. Circular concave plate; 7. Bearing ring; 8. Vertical rod; 9. Horizontal rod; 10. Column box; 11. Cylinder; 12. Air hole; 13. Pressure rod; 14. Alignment caliper; 15. Turntable; 16. Arc rod; 17. Welding torch; 18. Roller; 19. Slide rail; 20. Slide groove; 21. Rotary hole; 22. Motor; 23. Scale; 24. Collar bracket; 25. Collar; 26. Angle casting; 27. Rotating rod; 28. Handle; 29. ​​Fan; 30. Threaded layer; 31. Wheel bracket; 32. Auxiliary wheel. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] Reference Figure 1-4A steel pipe welding machine includes a machine tool 1, an equipment platform 2 fixedly connected to the outside of the machine tool 1, a hydraulic press 3 fixedly connected to the upper surface of the equipment platform 2, a left module 4 and a right module 5 fixedly connected to the upper surface of the machine tool 1, a circular concave plate 6 externally connected to the left module 4, a bearing ring 7 rotatably connected to the outside of the right module 5, a vertical rod 8 fixedly connected to the outside of the machine tool 1, a horizontal rod 9 fixedly connected to the upper surface of the vertical rod 8, a column box 10 fixedly connected to the outside of the horizontal rod 9, a cylinder 11 fixedly connected inside the column box 10, an air hole 12 opened inside the column box 10, a pressure rod 13 externally connected to the column box 10, the output end of the cylinder 11 passing through the air hole 12 and fixedly connected to the pressure rod 13, and the bottom of the pressure rod 13... A positioning clamp 14 is fixedly connected. A turntable 15 is installed on the outside of the machine tool 1. An arc rod 16 is installed on the outside of the machine tool 1, and the arc rod 16 is rotatably connected to the turntable 15. A welding torch 17 is fixedly connected to the outside of the arc rod 16. A roller 18 is installed on the upper surface of the machine tool 1. Before welding the steel pipes, the worker places two steel pipes on the upper surface of the roller 18, inserts one end of each steel pipe into the collar 25, and then inserts one end of each steel pipe into the concave disc 6 and the bearing ring 7, respectively. Then the worker starts the hydraulic press 3. The hydraulic press 3 starts working, and the output end of the hydraulic press 3 drives the left module 4 to move to the right, causing one of the steel pipes to move to the right, thereby connecting the other end of one steel pipe with the other end of the other steel pipe. After the two steel pipes are connected, the worker starts the air... The cylinder machine 11 starts working. The output end of the cylinder machine 11 drives the pressure rod 13 downward, causing the pressure rod 13 to drive the two alignment clamps 14 to simultaneously contact the upper surfaces of the two joined steel pipes, ensuring that the upper surfaces of the two joined steel pipes are at the same horizontal line, thus making the joint of the two joined steel pipes fit together tightly. Then, the welding gun 17 is used to weld the joint of the two joined steel pipes. Through the above operations, it is ensured that the joint of the two steel pipes is aligned before welding, achieving the effect of aligning the steel pipe joints and the welding effect. The upper surface of the machine tool 1 is fixedly connected to the slide rail 19, and the left module 4 has a slide groove 20 inside. The slide rail 19 and the slide groove 20 are slidably connected. The connection facilitates smooth rightward movement of the left module 4 under stress. A rotating hole 21 is provided inside the left module 4, and a motor 22 is fixedly connected inside. The output end of the motor 22 passes through the rotating hole 21 and is fixedly connected to the circular concave plate 6. When welding after aligning the interfaces of the two steel pipes, the motor 22 is started, causing its output end to rotate the circular concave plate 6, thereby causing the two aligned steel pipes to rotate simultaneously. This allows the welding torch 17 to weld around the interface of the aligned steel pipes. A scale 23 is fixedly connected externally to the machine tool 1. The upper surface of the scale 23 has graduations, providing a reference for the distance the left module 4 moves to the right. A collar bracket 24 is fixedly connected to the upper surface of the machine tool 1.A collar 25 is fixedly connected to the upper surface of the collar bracket 24. When the two aligned steel pipes rotate simultaneously under force, they rotate inside the collar 25, thereby reducing the amplitude caused by the rotation of the two steel pipes under force. An angular casting 26 is fixedly connected to the outside of the machine tool 1. A rotating rod 27 is rotatably connected to the outside of the angular casting 26. The rotating rod 27 is fixedly connected to the roller 18. The roller 18 can rotate under force through the rotating rod 27. When the two aligned steel pipes rotate simultaneously under force, the upper surface of the roller 18 also drives the roller 18 to rotate, thereby making the two steel pipes rotate smoothly. A handle 28 is fixedly connected to the outside of the arc rod 16. There are two handles 28. The worker holds the handles 28 to rotate the arc rod 16, thereby moving the welding torch 17 to the joint of the two aligned steel pipes for welding. Two fans 29 are fixedly connected to the external part of the 9. These fans 29 are turned on to cool the joint between the two welded steel pipes. The concave disc 6 and the bearing ring 7 both have a threaded layer 30, which is three centimeters thick. This three-centimeter threaded layer 30 increases the friction between one end of the steel pipe and the inner wall of the concave disc 6 and the bearing ring 7, facilitating the rotation of the two aligned steel pipes by the rotating concave disc 6 and the bearing ring 7. A wheel bracket 31 is fixedly connected to the bottom of the alignment clamp 14. An auxiliary wheel 32 is rotatably connected to the outside of the wheel bracket 31. After the alignment clamp 14 contacts the steel pipe, when the steel pipe rotates under force, the auxiliary wheel 32 rotates on the surface of the steel pipe, preventing the alignment clamp 14 from generating excessive resistance on the rotating surface of the steel pipe.

[0037] In this invention, before welding the steel pipes, the worker places two steel pipes on the upper surface of the roller 18, inserts one end of each steel pipe into the collar 25, and then connects one end of each steel pipe to the concave disc 6 and the bearing ring 7, respectively. Next, the worker starts the hydraulic press 3, which begins operation. The output end of the hydraulic press 3 drives the left module 4 to move to the right, causing one of the steel pipes to move to the right, thus connecting the other end of one steel pipe with the other. After the two steel pipes are connected, the worker starts the pneumatic cylinder 11, which begins operation. The output end of the pneumatic cylinder 11 drives the pressure rod 13 downwards. The pressure rod 13 drives the two alignment clamps 14 to simultaneously contact the upper surfaces of the two joined steel pipes, ensuring that the upper surfaces of the two joined steel pipes are on the same horizontal line, thus making the joint of the two joined steel pipes fit together perfectly. Then, the welding torch 17 is used to weld the joint of the two joined steel pipes. Through the above operations, it is ensured that the joint of the two steel pipes is aligned before welding, achieving the effect of aligning the steel pipe interfaces and welding effect. The sliding connection between the slide rail 19 and the slide groove 20 facilitates the smooth rightward movement of the left module 4 after being stressed. When welding after aligning the interfaces of the two steel pipes, the process is initiated. Motor 22 drives the circular concave disk 6 to rotate at its output end, thereby causing the two aligned steel pipes to rotate simultaneously. This facilitates welding by welding torch 17 around the joint of the two aligned steel pipes. The scale value set on the upper surface of the scale 23 provides a reference for the distance the left module 4 moves to the right. When the two aligned steel pipes rotate simultaneously under force, they rotate inside the collar 25, thereby reducing the amplitude caused by the rotation of the two steel pipes under force. The roller 18 can rotate under force through the rotating rod 27. When the two aligned steel pipes rotate simultaneously under force, the upper surface of the roller 18 also drives the roller 18 to rotate, thus making the two steel pipes stable. The worker grips handle 28 to rotate the arc rod 16, thereby moving the welding torch 17 to the joint of the two aligned steel pipes for welding. The fan 29 is turned on to cool the joint of the two welded steel pipes. The three-centimeter threaded layer 30 increases the friction between one end of the steel pipe and the inner wall of the concave disc 6 and bearing ring 7, making it easier for the concave disc 6 and bearing ring 7 to rotate the two aligned steel pipes under force. After the alignment clamp 14 contacts the steel pipe, when the steel pipe is rotated under force, the auxiliary wheel 32 rotates on the surface of the steel pipe to prevent the alignment clamp 14 from generating too much resistance on the surface of the rotating steel pipe.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel pipe welding machine, comprising a machine tool (1), characterized in that: The machine tool (1) is externally fixedly connected to an equipment platform (2). A hydraulic press (3) is fixedly connected to the upper surface of the equipment platform (2). A left module (4) is provided on the upper surface of the machine tool (1). A right module (5) is fixedly connected to the upper surface of the machine tool (1). A circular concave plate (6) is provided on the outside of the left module (4). A bearing ring (7) is rotatably connected to the outside of the right module (5). A vertical rod (8) is fixedly connected to the outside of the machine tool (1). A horizontal rod (9) is fixedly connected to the upper surface of the vertical rod (8). A column box (10) is fixedly connected to the outside of the horizontal rod (9). A column box (10) is fixedly connected to the inside of the column box (10). The cylinder machine (11) has an air hole (12) inside the column box (10), and a pressure rod (13) is provided on the outside of the column box (10). The output end of the cylinder machine (11) passes through the air hole (12) and is fixedly connected to the pressure rod (13). A positioning clamp (14) is fixedly connected to the bottom of the pressure rod (13). A turntable (15) is provided on the outside of the machine tool (1). An arc rod (16) is provided on the outside of the machine tool (1). The arc rod (16) is rotatably connected to the turntable (15). A welding gun (17) is fixedly connected to the outside of the arc rod (16). A roller (18) is provided on the upper surface of the machine tool (1).

2. The steel pipe welding machine according to claim 1, characterized in that: The upper surface of the machine tool (1) is fixedly connected to a slide rail (19), and the interior of the left module (4) is provided with a slide groove (20), and the slide rail (19) is slidably connected to the slide groove (20).

3. The steel pipe welding machine according to claim 1, characterized in that: The left module (4) has a rotating hole (21) inside, and a motor (22) is fixedly connected inside the left module (4). The output end of the motor (22) passes through the rotating hole (21) and is fixedly connected to the circular concave plate (6).

4. A steel pipe welding machine according to claim 1, characterized in that: The machine tool (1) is externally fixedly connected to a scale (23), and the upper surface of the scale (23) is provided with scale values.

5. A steel pipe welding machine according to claim 1, characterized in that: The upper surface of the machine tool (1) is fixedly connected to a collar bracket (24), and the upper surface of the collar bracket (24) is fixedly connected to a collar (25).

6. A steel pipe welding machine according to claim 1, characterized in that: An angular casting (26) is fixedly connected to the outside of the machine tool (1), and a rotating rod (27) is rotatably connected to the outside of the angular casting (26). The rotating rod (27) is fixedly connected to a roller (18).

7. A steel pipe welding machine according to claim 1, characterized in that: The arc rod (16) is externally fixedly connected to a handle (28), and there are two handles (28).

8. A steel pipe welding machine according to claim 1, characterized in that: A fan (29) is fixedly connected to the outside of the crossbar (9), and there are two fans (29).

9. A steel pipe welding machine according to claim 1, characterized in that: Both the concave disc (6) and the bearing ring (7) are provided with a threaded layer (30), the thickness of which is three centimeters.

10. A steel pipe welding machine according to claim 1, characterized in that: The bottom of the alignment caliper (14) is fixedly connected to a wheel bracket (31), and an auxiliary wheel (32) is rotatably connected to the outside of the wheel bracket (31).

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