Spiral pipe welder capable of adjusting pipe diameter

Abstract

The utility model provides a spiral pipe welder with adjustable pipe diameter, which relates to the technical field of spiral pipe welders, and comprises a base, a spiral component is arranged above the base, the spiral component comprises a rotating frame, two fixing frames fixed on the upper surface of the base and a plurality of guide rollers arranged circumferentially, and two symmetrical T-shaped connecting frames are fixed to the outer surfaces of the multiple guide rollers correspondingly, first anti-disengagement sliding blocks are fixed to the outer surfaces of the multiple T-shaped connecting frames correspondingly, and the first anti-disengagement sliding blocks are slidably connected to the inner wall of the fixing frame. According to the spiral pipe welding machine capable of adjusting the pipe diameter, the spiral assembly is arranged, the distance between the multiple guide rollers is adjusted through rotation of the rotating frame, and therefore the pipe diameter of a welded steel pipe is adjusted, and compared with an existing mode that the pipe diameter is adjusted by replacing a cylindrical forming guide frame, many forming guide frames with different diameters do not need to be prepared; and the process of replacing the forming guide frame is omitted, the pipe diameter is convenient and fast to adjust, and use is convenient.

Description

Technical Field

[0001] This utility model relates to an adjustable diameter spiral welded pipe machine, specifically an adjustable diameter spiral welded pipe machine, belonging to the technical field of spiral welded pipe machines. Background Technology

[0002] Spiral welded pipe machines are used to manufacture spiral welded pipes. They can produce steel pipes of different diameters from strips of the same width, and steel pipes of the same diameter from strips of different widths. Through flexible forming, efficient welding and intelligent detection technologies, spiral welded pipe machines meet the production needs of large-diameter steel pipes and are key equipment in industries such as petroleum and chemical.

[0003] A spiral pipe welding machine disclosed in Chinese patent application publication CN222059228U uses a first motor to drive a first lead screw to rotate, thereby causing a first slider to move up and down along a first groove. The movement of the first slider drives a first collection box to move inside the pipe. During welding, a fan is started to draw the fumes generated during welding inside the pipe into the first collection box, purify them in a filter box, and then discharge them, reducing the impact on workers.

[0004] However, in the implementation of the above-mentioned patented technical solution, the diameter of the steel pipe welded by the spiral welded pipe machine is not convenient to adjust. The existing spiral welded pipe machine feeds the strip steel to form a spiral steel pipe for welding. The spiral of the strip steel is achieved by a cylindrical forming guide frame. Therefore, the diameter of the steel pipe is determined by the diameter of the cylindrical forming guide frame. When it is necessary to weld steel pipes of different diameters, the forming guide frame needs to be replaced. This requires preparing a lot of forming guide frames of different diameters for backup. Furthermore, the method of replacing the forming guide frame to adjust the diameter of the steel pipe is also quite inconvenient.

[0005] Therefore, an adjustable-diameter spiral welded pipe machine is proposed here. Utility Model Content

[0006] This utility model proposes an adjustable diameter spiral pipe welding machine to solve the problem that the diameter of the steel pipe welded by the existing spiral pipe welding machine is inconvenient to adjust.

[0007] This utility model is achieved through the following technical solution: an adjustable diameter spiral welded pipe machine, including a base, a spiral assembly is arranged above the base, the spiral assembly includes a rotating frame, two fixed frames fixed to the upper surface of the base and a plurality of guide rollers arranged in a circle, two symmetrical T-shaped connecting frames are fixed to the outer surface of the plurality of guide rollers, a first anti-detachment slider is fixed to the outer surface of the plurality of T-shaped connecting frames, the first anti-detachment slider is slidably connected to the inner wall of the fixed frame, and a second anti-detachment slider is rotatably connected to the outer surface of the plurality of T-shaped connecting frames, the plurality of second anti-detachment sliders are slidably connected to the inner wall of the rotating frame.

[0008] Specifically, a support frame is rotatably connected to the outer surface of the rotating frame, and the support frame is fixed to the upper surface of the base, providing support for the rotation of the rotating frame.

[0009] A motor is fixed to the outer surface of the aforementioned support frame, a gear is fixed to the output shaft end of the motor, and an arc-shaped rack is fixed to the outer surface of the rotating frame. The arc-shaped rack meshes with the gear to control the operation of the motor. The rotating frame can be driven to rotate through the gear and the arc-shaped rack.

[0010] Preferably, a guide assembly is provided above the base. The guide assembly includes a U-shaped frame, and four first electric push rods are fixed to the bottom surface of the U-shaped frame. The bottom ends of the four first electric push rods are all fixed to the upper surface of the base. The height of the U-shaped frame is adjusted by extending and retracting the first electric push rods, so that the strip steel can pass through the U-shaped frame and enter multiple guide rollers for spiraling.

[0011] Preferably, a welding assembly is provided above the base. The welding assembly includes a fixing plate fixed to the upper surface of the base. A second electric push rod is fixed to the outer surface of the fixing plate. A welding gun is fixed to the telescopic end of the second electric push rod. The rotating frame and the guide roller are both adapted to the welding gun. The distance between the welding gun and the weld is adjusted by telescopically extending the second electric push rod, so that the welding gun can be adapted to welding strip steel of different pipe diameters.

[0012] Preferably, a conveying assembly is provided above the base. The conveying assembly includes a connecting plate. Six pulleys are fixed on the upper surface of the connecting plate, and four third electric push rods are fixed on the bottom surface of the connecting plate. The bottom ends of the four third electric push rods are all fixed to the upper surface of the base. The height of the pulleys can be adjusted to facilitate the conveying of the welded steel pipe by the third electric push rods.

[0013] This utility model provides an adjustable diameter spiral pipe welding machine, which has the following beneficial effects:

[0014] 1. This adjustable diameter spiral pipe welding machine adjusts the diameter of the welded steel pipe by adjusting the distance between multiple guide rollers through the spiral assembly and the rotation of the rotating frame. Compared with the existing method of adjusting the pipe diameter by replacing the cylindrical forming guide frame, it eliminates the need to prepare many forming guide frames of different diameters and also saves the process of replacing the forming guide frame. It is convenient and quick to adjust the pipe diameter and easy to use.

[0015] 2. The adjustable diameter spiral welded pipe machine, through the setting of the guide assembly and welding assembly, adjusts the distance between multiple guide rollers and then adjusts the height of the U-shaped frame by the extension and retraction of the first electric push rod, so that the strip steel can pass through the U-shaped frame and enter multiple guide rollers for spiral welding. At the same time, the distance between the welding gun and the weld seam is adjusted by the extension and retraction of the second electric push rod, so that the welding gun can be adapted to welding strip steel of different diameters. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the rotating frame and U-shaped frame of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the rotating frame and support frame of this utility model;

[0019] Figure 4 This is a schematic diagram showing the disassembled structure of the fixing frame, the first anti-detachment slider, the second anti-detachment slider, and the rotating frame of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the second electric push rod and welding torch of this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Base;

[0023] 2. Spiral assembly; 21. Rotating frame; 22. Fixed frame; 23. Guide roller; 24. T-shaped connecting frame; 25. First anti-detachment slider; 26. Second anti-detachment slider; 27. Support frame; 28. Motor; 29. ​​Gear; 210. Arc-shaped rack;

[0024] 3. Guide assembly; 31. U-shaped frame; 32. First electric push rod;

[0025] 4. Welding assembly; 41. Fixing plate; 42. Second electric push rod; 43. Welding torch;

[0026] 5. Conveying assembly; 51. Connecting plate; 52. Pulley; 53. Third electric push rod. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0028] Please see Figures 1-5 The present invention proposes the following implementation scheme: an adjustable diameter spiral welded pipe machine, including a base 1, a spiral assembly 2 is arranged above the base 1, the spiral assembly 2 includes a rotating frame 21, two fixed frames 22 fixed on the upper surface of the base 1 and a plurality of guide rollers 23 arranged in a circle, two symmetrical T-shaped connecting frames 24 are fixed on the outer surface of the plurality of guide rollers 23, and a first anti-detachment slider 25 is fixed on the outer surface of the plurality of T-shaped connecting frames 24. The first anti-detachment slider 25 is slidably connected to the inner wall of the fixed frame 22. The fixed frame 22 is provided with a plurality of grooves facing the center of the fixed frame 22, and the first anti-detachment slider 25 slides in the grooves of the fixed frame 22.

[0029] Please refer to the following carefully. Figure 4 The outer surfaces of multiple T-shaped connecting frames 24 are rotatably connected with second anti-detachment sliders 26. Multiple second anti-detachment sliders 26 are slidably connected to the inner wall of the rotating frame 21. Multiple grooves adapted to the second anti-detachment sliders 26 are provided on the rotating frame 21, and the grooves on the rotating frame 21 are inclined to the grooves on the fixed frame 22. When the rotating frame 21 rotates, it can synchronously push multiple guide rollers 23 to move away from or closer to the axis of the rotating frame 21 under the action of the first anti-detachment slider 25 and the second anti-detachment slider 26.

[0030] Please refer to the following carefully. Figure 3 A support frame 27 is rotatably connected to the outer surface of the rotating frame 21. The support frame 27 is fixed to the upper surface of the base 1 and supports the rotation of the rotating frame 21.

[0031] Please refer to the following carefully. Figure 3 A motor 28 is fixed to the outer surface of the support frame 27, and a gear 29 is fixed to the output shaft end of the motor 28. An arc-shaped rack 210 is fixed to the outer surface of the rotating frame 21. The arc-shaped rack 210 meshes with the gear 29 to control the operation of the motor 28. The rotating frame 21 can be driven to rotate through the gear 29 and the arc-shaped rack 210.

[0032] Please refer to the following carefully. Figure 2 A guide assembly 3 is provided above the base 1. The guide assembly 3 includes a U-shaped frame 31. Four first electric push rods 32 are fixed on the bottom surface of the U-shaped frame 31. The four first electric push rods 32 share the same controller. The bottom ends of the four first electric push rods 32 are all fixed to the upper surface of the base 1. The height of the U-shaped frame 31 is adjusted by the extension and retraction of the first electric push rods 32, so that the strip steel can pass through the U-shaped frame 31 and enter multiple guide rollers 23 for spiraling.

[0033] Please refer to the following carefully. Figure 1 and Figure 5A welding assembly 4 is provided above the base 1. The welding assembly 4 includes a fixing plate 41 fixed to the upper surface of the base 1. A second electric push rod 42 is fixed to the outer surface of the fixing plate 41. A welding torch 43 is fixed to the telescopic end of the second electric push rod 42. The rotating frame 21 and the guide roller 23 are both adapted to the welding torch 43. The rotating frame 21 and the guide roller 23 will not block the welding torch 43 from welding the steel pipe. The distance between the welding torch 43 and the weld is adjusted by the telescopic movement of the second electric push rod 42, so that the welding torch 43 can be adapted to welding strip steel of different pipe diameters.

[0034] Please refer to the following carefully. Figure 1 and Figure 2 A conveying assembly 5 is provided above the base 1. The conveying assembly 5 includes a connecting plate 51. Six pulleys 52 are fixed on the upper surface of the connecting plate 51. Four third electric push rods 53 are fixed on the bottom surface of the connecting plate 51. The four third electric push rods 53 share the same controller. The bottom ends of the four third electric push rods 53 are all fixed to the upper surface of the base 1. The height of the pulleys 52 can be adjusted so that the third electric push rods 53 can convey and support the welded steel pipe.

[0035] In use, the strip steel is passed through the U-shaped frame 31 and spirally enters multiple guide rollers 23, forming a steel pipe. The weld seam is then welded using a welding torch 43. The welded steel pipe is conveyed outwards via pulleys 52. When the pipe diameter needs adjustment, the motor 28 is controlled to rotate, driving the rotating frame 21 to rotate via gears 29 and an arc-shaped rack 210. Under the sliding action of the first anti-detachment slider 25 and the second anti-detachment slider 26, the multiple guide rollers 23 move closer or further apart, adapting the internal cylindrical space of the guide rollers 23 to the required pipe diameter. Then, the U-shaped frame 31 is adjusted by the extension and retraction of the first electric push rod 32. The height of the guide rollers 23 is adjusted to allow the strip steel to pass through the U-shaped frame 31 and enter multiple guide rollers 23 for spiral welding. At the same time, the distance between the welding torch 43 and the weld seam is adjusted by the extension and retraction of the second electric push rod 42, so that the welding torch 43 can be adapted to welding strip steel of different diameters. The height of the pulley 52 is adjusted by the extension and retraction of the third electric push rod 53, so that the third electric push rod 53 can transport and support the welded steel pipe. The device adjusts the distance between multiple guide rollers 23 by rotating the rotating frame 21, thereby adjusting the diameter of the welded steel pipe. There is no need to prepare a lot of forming guide frames of different diameters, and the process of replacing forming guide frames is also eliminated, making it convenient and quick to adjust the pipe diameter.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable diameter spiral welded pipe machine, comprising a base (1), characterized in that: A spiral assembly (2) is provided above the base (1). The spiral assembly (2) includes a rotating frame (21), two fixed frames (22) fixed on the upper surface of the base (1), and a plurality of guide rollers (23) arranged in a circle. Two symmetrical T-shaped connecting frames (24) are fixed on the outer surface of the plurality of guide rollers (23). A first anti-detachment slider (25) is fixed on the outer surface of the plurality of T-shaped connecting frames (24). The first anti-detachment slider (25) is slidably connected to the inner wall of the fixed frame (22). A second anti-detachment slider (26) is rotatably connected to the outer surface of the plurality of T-shaped connecting frames (24). The plurality of second anti-detachment sliders (26) are slidably connected to the inner wall of the rotating frame (21).

2. The adjustable diameter spiral welded pipe machine according to claim 1, characterized in that: The outer surface of the rotating frame (21) is rotatably connected to a support frame (27), which is fixed to the upper surface of the base (1).

3. The adjustable diameter spiral welded pipe machine according to claim 2, characterized in that: A motor (28) is fixed to the outer surface of the support frame (27), a gear (29) is fixed to the output shaft end of the motor (28), and an arc-shaped rack (210) is fixed to the outer surface of the rotating frame (21), the arc-shaped rack (210) meshing with the gear (29).

4. The adjustable diameter spiral welded pipe machine according to claim 1, characterized in that: A guide assembly (3) is provided above the base (1). The guide assembly (3) includes a U-shaped frame (31). Four first electric push rods (32) are fixed on the bottom surface of the U-shaped frame (31). The bottom ends of the four first electric push rods (32) are all fixed on the upper surface of the base (1).

5. The adjustable diameter spiral welded pipe machine according to claim 1, characterized in that: A welding assembly (4) is provided above the base (1). The welding assembly (4) includes a fixing plate (41) fixed to the upper surface of the base (1). A second electric push rod (42) is fixed to the outer surface of the fixing plate (41). A welding gun (43) is fixed to the telescopic end of the second electric push rod (42). The rotating frame (21) and the guide roller (23) are both adapted to the welding gun (43).

6. The adjustable diameter spiral welded pipe machine according to claim 1, characterized in that: A conveying assembly (5) is provided above the base (1). The conveying assembly (5) includes a connecting plate (51). Six pulleys (52) are fixed on the upper surface of the connecting plate (51). Four third electric push rods (53) are fixed on the bottom surface of the connecting plate (51). The bottom ends of the four third electric push rods (53) are all fixed on the upper surface of the base (1).

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