Pipe welding machine with regulating function

Abstract

This invention discloses a steel pipe welding machine with adjustable function, which relates to the field of welding machine technology. It includes a machine body, and further includes: a welding machine and a track mounted on the machine body; a first movable box and a second movable box slidably connected to the track; a first positioning mechanism disposed inside the first movable box, the first positioning mechanism including a second groove formed inside the first movable box, a deflection component rotatably connected inside the second groove, a central cylinder disposed inside the deflection component, and a third groove formed inside the central cylinder, the deflection component being used to adjust the angle of the central cylinder and the third groove; a second positioning mechanism disposed inside the second movable box; a first groove formed inside the machine body and a lifting rod installed inside the first groove; a central shaft disposed on the telescopic end of the lifting rod and a support plate mounted on the central shaft. This steel pipe welding machine with adjustable function achieves the purpose of improving the efficiency of equipment use.

Description

Technical Field

[0001] This invention relates to the field of pipe welding machine technology, specifically to a steel pipe welding machine with adjustable function. Background Technology

[0002] A welded pipe machine is a specialized production equipment used to manufacture pipes from metal sheets or strips through continuous forming, welding, and sizing processes. Its basic workflow includes uncoiling the steel strip, leveling, shearing and butt welding, and looping for storage. Then, the strip is gradually bent into round or shaped pipes using multiple forming rollers. The edges of the pipe seam are then heated and fused together using high-frequency induction or contact welding. Subsequently, pressure is applied by extrusion rollers to achieve solid-state bonding. Finally, the finished welded pipe is produced through cooling, sizing, straightening, and cutting processes.

[0003] Chinese patent CN116551272A discloses a steel pipe welding machine with an adjustable function. When the switching device switches, it drives an adjusting gear. The switching device is equipped with a circuit for controlling the machine's state and a cooling device connected to the rollers. The cooling device changes the water output according to the state of the switching device. However, during the movement of the steel pipe by the rollers, the steel pipe is prone to deflection and displacement, causing a change in the weld position. Summary of the Invention

[0004] To overcome the problem of steel pipes easily shifting and causing changes in the weld position, this invention provides a steel pipe welding machine with an adjustment function, including a machine body and further comprising: Welding machine and track installed on the machine body; The first movable box and the second movable box are slidably connected on the track; A first positioning mechanism is provided inside the first movable box. The first positioning mechanism includes a second groove opened inside the first movable box, a deflection component rotatably connected inside the second groove, a central cylinder provided inside the deflection component, and a third groove opened inside the central cylinder. The deflection component is used to adjust the angle of the central cylinder and the third groove.

[0005] Preferably, it further includes: A second positioning mechanism is installed inside the second movable box; A first groove is formed inside the body and a lifting rod is installed inside the first groove; A central shaft is set on the telescopic end of the lifting rod and a support plate is installed on the central shaft; An adjusting rod is installed outside the central shaft, and a side plate is connected to the end of the adjusting rod away from the central shaft. The lifting rod is used to drive the support plate and the side plate to rise and fall.

[0006] Preferably, the first positioning mechanism further includes: A ring seat is rotatably connected to the inside of the second groove, and the deflection component is disposed inside the ring seat; The first channel and through hole are opened inside the central cylinder.

[0007] Preferably, the first positioning mechanism further includes: Mounting bracket installed above the first mobile box; A mounting bracket that snaps into the mounting base and a plug rod that connects to the mounting bracket.

[0008] Preferably, the deflection component includes: The first push rod and the first arc plate connected to the telescopic end of the first push rod are provided inside the annular seat. Multiple first arc plates and multiple first push rods are provided. A sharp corner plate is set on one of the first arc-shaped plates, and the sharp corner plate is adapted to the third groove to prevent the central cylinder from deflecting. The mating plate is installed on the annular seat and the mating interface is opened in the mating plate, and the plug rod is adapted to the mating interface; A rotating shaft is installed outside the annular seat, with one end of the shaft away from the annular seat extending into the first movable box.

[0009] Preferably, the second positioning mechanism includes: A chute located inside the second movable box; The second push rod is installed inside the slide, and the movable component is connected to the telescopic end of the second push rod.

[0010] Preferably, the second positioning mechanism further includes: The connecting box installed above the second mobile box and the second channel opened inside the connecting box; A fourth recess is located inside the second movable box; The third push rod is located inside the fourth groove, and the second arc-shaped plate is connected to the telescopic end of the third push rod.

[0011] Preferably, the moving component includes: A sliding box is slidably connected inside the slide groove, and the sliding box is connected to the telescopic end of the second push rod; The fourth push rod is located inside the sliding box, and the back plate is connected to the telescopic end of the fourth push rod. The fourth push rod is used to drive the back plate to move relative to the steel pipe.

[0012] Preferably, the moving component further includes: An arc-shaped groove formed inside the backing plate and an arc-shaped component slidably connected inside the arc-shaped groove; An elastic rod is installed inside the arc-shaped groove, and the elastic rod is connected to the arc-shaped component; A support rod is installed outside the arc-shaped component, and a contact plate is connected to the support rod. The contact plate is equipped with a suction strip on its outside and is used to contact the outer wall of the fixed steel pipe.

[0013] This invention provides a steel pipe welding machine with an adjustable function. It has the following beneficial effects: 1. This adjustable steel pipe welding machine, through the establishment of a first positioning mechanism, utilizes a first channel and through-hole inside the central cylinder to uniformly adsorb the inner wall of the steel pipe onto the outer wall of the central cylinder under negative pressure adsorption. Existing steel pipe welding machines, during welding, rely on rollers to move the steel pipe, which is prone to deflection and displacement, leading to changes in the weld position. Therefore, a negative pressure adsorption method is used to limit the movement of the steel pipe, preventing displacement during welding. Furthermore, when the second positioning mechanism detects that the weld deviates from the vertical position, a motor-driven rotating shaft rotates the entire annular seat and the internal central cylinder and steel pipe, thereby solving the aforementioned problem.

[0014] 2. This adjustable steel pipe welding machine, through the setting of a first positioning mechanism, ensures that when clamping the central cylinder, the unique pointed plate of the uppermost arc-shaped plate is embedded in the third groove of the central cylinder, effectively preventing the central cylinder from deflecting while limiting its position. Furthermore, the mounting base, fixing frame, and insert rod form a locking structure, allowing the insert rod to engage with the mating interface, thus ensuring the stability of the central cylinder position when workers manually install the steel pipe.

[0015] 3. This steel pipe welding machine with adjustment function, by setting a second positioning mechanism, in the limiting stage, the fourth push rod drives the back plate and the contact plate to move towards the steel pipe, and the suction strip is attracted and fixed to the outer wall of the steel pipe, pressing the inner wall of the steel pipe onto the outer wall of the central cylinder, which not only eliminates the gap between the pipe walls, but also avoids surface scratches or thin-wall deformation that may be caused by rigid clamping.

[0016] 4. This adjustable steel pipe welding machine, through the setting of a second positioning mechanism, allows the steel pipe to deflect when the weld seam deviates from the vertical position. The central cylinder then drives the steel pipe to rotate, and the steel pipe in turn drives the arc-shaped component to slide within the arc-shaped groove. This ensures that the free rotation of the steel pipe is not affected, while the elastic rod maintains the continuous contact of the suction strip. During the welding feeding stage, the power system drives the first moving box to move, while the second push rod drives the sliding box, the back plate, and the contact plate to move. This causes the contact plates on both sides, the central cylinder, and the steel pipe to move simultaneously towards the welding machine, providing real-time pressure on the steel pipe and preventing loosening of the outer wall. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the body of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the structure at point A; Figure 4 This is a schematic diagram of the structure of the first positioning mechanism of the present invention; Figure 5 This is a schematic diagram of the deflection component of the present invention; Figure 6 This is a cross-sectional view of the second positioning mechanism of the present invention; Figure 7 This is a schematic diagram of the structure of the moving component of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the structure at point B.

[0018] In the diagram: 1. Body; 2. Track; 3. Welding machine; 4. First moving box; 5. First positioning mechanism; 501. Second groove; 502. Annular seat; 503. Deflection assembly; 5031. First push rod; 5032. First arc plate; 5033. Sharp corner plate; 5034. Butt joint plate; 5035. Rotating shaft; 504. Central cylinder; 505. Through hole; 506. Third groove; 507. First channel; 508. Fixing frame; 509. Insert rod; 510. Mounting base; 6. Second moving box; 7. Second positioning mechanism; 701 702. Slide groove; 703. Second channel; 704. Second push rod; 705. Moving component; 706. Sliding box; 707. Fourth push rod; 708. Backing plate; 709. Arc groove; 7000. Arc component; 7000. Support rod; 7000. Touch plate; 7000. Suction strip; 7000. Elastic rod; 701. Connecting box; 702. Fourth groove; 703. Third push rod; 704. Second arc plate; 705. First groove; 706. Lifting rod; 707. Central shaft; 708. Adjusting rod; 709. Side plate; 7000. Support plate. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0020] like Figures 1-8 As shown, the present invention provides a technical solution: a steel pipe welding machine with adjustment function is described below.

[0021] Including the main body 1, it also includes: The welding machine 3 and the track 2 are mounted on the machine body 1; The first movable box 4 and the second movable box 6 are slidably connected to the track 2. Both the first movable box 4 and the second movable box 6 are controlled by the power system to slide on the track 2. The first movable box 4 is equipped with a motor. The first positioning mechanism 5 is set inside the first movable box 4. The first positioning mechanism 5 includes a second groove 501 opened inside the first movable box 4, a deflection component 503 rotatably connected inside the second groove 501, a central cylinder 504 set inside the deflection component 503, and a third groove 506 opened inside the central cylinder 504. The deflection component 503 is used to adjust the angle of the central cylinder 504 and the third groove 506. The second positioning mechanism 7 is installed inside the second movable box 6; A first groove 8 is formed inside the body 1 and a lifting rod 9 is installed inside the first groove 8. The lifting rod 9 is set as an electric push rod. The central shaft 10 is set on the telescopic end of the lifting rod 9 and the support plate 13 is installed on the central shaft 10; An adjusting rod 11 is installed outside the central shaft 10, and a side plate 12 is connected to the end of the adjusting rod 11 away from the central shaft 10. The adjusting rod 11 is configured as a rod whose length can be manually adjusted.

[0022] Before using the equipment, the lifting rod 9 is in its initial state, with the support plate 13 and side plate 12 both positioned in the first groove 8. The worker manually places the slit steel pipe over the outside of the central cylinder 504, with the weld seam directly above the area of ​​the first groove 8. Then, the lifting rod 9 is activated, driving the support plate 13 and side plate 12 upwards. The support plate 13 contacts the bottom of the central cylinder 504, and the side plate 12 contacts both sides of the central cylinder 504, thus limiting the height of the central cylinder 504. The first positioning mechanism 5 and the second positioning mechanism 7 are adjusted to define the position of the steel pipe, and the position of the steel pipe is adjusted before the welding machine 3 welds the steel pipe. After welding, the first positioning mechanism 5 and the second positioning mechanism 7 are adjusted to complete the steel pipe unloading process.

[0023] The first positioning mechanism 5 also includes: The annular seat 502 is rotatably connected to the inside of the second groove 501, and the deflection component 503 is disposed inside the annular seat 502; A first channel 507 and a through hole 505 are opened inside the central cylinder 504. The first channel 507 is connected to an external exhaust fan through an external pipe. Mounting base 510 installed above the first mobile box 4; A mounting bracket 508 and a plug rod 509 connected to the mounting bracket 508 are snapped into the mounting base 510.

[0024] Deflection component 503 includes: The first push rod 5031 and the first arc plate 5032 connected to the telescopic end of the first push rod 5031 are provided inside the annular seat 502. Multiple first arc plates 5032 and first push rods 5031 are provided. The first push rod 5031 is set as an electric push rod. A pointed plate 5033 is provided on one of the first arc-shaped plates 5032, and the pointed plate 5033 is adapted to the third groove 506; The mating plate 5034 installed on the annular seat 502 and the mating interface opened in the mating plate 5034, the plug rod 509 is adapted to the mating interface; A rotating shaft 5035 is installed outside the annular seat 502. One end of the rotating shaft 5035 away from the annular seat 502 extends into the first movable box 4, and the rotating shaft 5035 is connected to the output end of the motor.

[0025] The process of using the first positioning mechanism 5 to limit the center cylinder 504: Based on the dimensions of the steel pipe, select and install a center cylinder 504 of the corresponding size. At this time, the fixing bracket 508 is in the mounting base 510, and the insertion rod 509 is in the mating interface of the mating plate 5034. Based on the dimensions of the center cylinder 504, adjust the first push rod 5031 to the corresponding stroke, and fix the center cylinder 504 by contacting the four first arc-shaped plates 5032, with the uppermost first arc-shaped plate 5032 having a pointed corner plate 5033, which is located in the third groove 506 of the center cylinder 504.

[0026] The process of using the first positioning mechanism 5 to limit the steel pipe: The worker manually places the slit steel pipe over the outside of the central cylinder 504, with the weld seam directly above the area of ​​the first groove 8. As the second positioning mechanism 7 limits the position of the steel pipe, an external exhaust fan is connected to the first channel 507 of the central cylinder 504 through an external pipe. The external exhaust fan is then started, and under negative pressure, the central cylinder 504 uses the through hole 505 to adhere and fix the steel pipe.

[0027] The working process of controlling the deflection of the central cylinder 504 using the first positioning mechanism 5: The fixing bracket 508 in the mounting base 510 is manually disassembled, and the insertion rod 509 gradually separates from the mating interface of the docking plate 5034. The position of the steel pipe is monitored in real time by the second positioning mechanism 7. If the weld of the steel pipe is not in the vertical direction, the motor is started. The motor drives the rotating shaft 5035, the annular seat 502, the first push rod 5031, the first arc plate 5032, the sharp corner plate 5033, the central cylinder 504, and the steel pipe to deflect until the weld of the steel pipe is in the vertical direction.

[0028] By setting the first positioning mechanism 5, when clamping the center cylinder 504, the unique pointed plate 5033 of the uppermost arc-shaped plate is embedded in the third groove 506 of the center cylinder 504, which not only limits the center cylinder 504 but also effectively prevents the center cylinder 504 from deflecting. Furthermore, the mounting base 510, the fixing bracket 508, and the insertion rod 509 form a snap-fit ​​locking structure, and the insertion rod 509 can snap into the interface, thereby ensuring the stability of the center cylinder 504 when the worker manually installs the steel pipe.

[0029] By setting the first positioning mechanism 5, since the central cylinder 504 has a first channel 507 and a through hole 505, the inner wall of the steel pipe is evenly adsorbed onto the outer wall of the central cylinder 504 under negative pressure adsorption. When the second positioning mechanism 7 detects that the weld seam deviates from the vertical position, the motor drives the rotating shaft 5035 to drive the entire annular seat 502 and the internal central cylinder 504 and steel pipe to deflect.

[0030] The second positioning mechanism 7 includes: A chute 701 is located inside the second movable box 6; The second push rod 703 is installed inside the slide 701 and the movable component 704 is connected to the telescopic end of the second push rod 703. The second push rod 703 is configured as an electric push rod. A connecting box 705 is installed on top of the second mobile box 6, and a second channel 702 is opened inside the connecting box 705. The connecting box 705 is connected to the second mobile box 6 through the second channel 702. Multiple connecting boxes 705 are provided, and each of the multiple connecting boxes 705 is equipped with a camera. A fourth recess 706 is formed inside the second movable box 6; The third push rod 707 and the second arc plate 708 connected to the telescopic end of the third push rod 707 are disposed inside the fourth groove 706. The third push rod 707 is an electric push rod. When the steel pipe is installed and removed, the third push rod 707 is in the open mode. The two second arc plates 708 are fixed in contact on both sides of the central cylinder 504, and together with the deflection component 503, they limit the height of the central cylinder 504. The second arc plates 708 and the support plate 13 work alternately to support the central cylinder 504.

[0031] Mobile component 704 includes: A sliding box 7041 is slidably connected inside the slide groove 701, and the sliding box 7041 is connected to the telescopic end of the second push rod 703; The fourth push rod 7042 and the backing plate 7043 connected to the telescopic end of the fourth push rod 7042 are disposed inside the sliding box 7041. The fourth push rod 7042 is configured as an electric push rod. An arc-shaped groove 7044 is formed inside the back plate 7043, and an arc-shaped component 7045 is slidably connected inside the arc-shaped groove 7044. The arc-shaped component 7045 is composed of an arc-shaped sliding plate and two vertical plates. An elastic rod 7049 is installed inside the arc-shaped groove 7044. The elastic rod 7049 is connected to the arc-shaped component 7045. There are two elastic rods 7049, and the two elastic rods 7049 connect the arc-shaped component 7045 and the arc-shaped groove 7044 together. A support rod 7046 and a contact plate 7047 connected to the support rod 7046 are provided on the outside of the arc-shaped component 7045. A suction strip 7048 is provided on the outside of the contact plate 7047, and the contact plate 7047 is set in an arc shape.

[0032] The process of using the second positioning mechanism 7 to limit the movement of the steel pipe: The fourth push rod 7042 is activated, which drives the back plate 7043, the arc-shaped part 7045, the support rod 7046 and the contact plate 7047 to move towards the steel pipe. The suction strip 7048 on the outside of the contact plate 7047 gradually attracts and fixes itself to the outside of the steel pipe, and squeezes the steel pipe so that the inner wall of the steel pipe is in complete contact with the outer wall of the central cylinder 504.

[0033] The working process of using the second positioning mechanism 7 in conjunction with the first positioning mechanism 5 to drive the steel pipe to deflect: The camera in the connecting box 705 constantly monitors the steel pipe below it. When it is found that the weld of the steel pipe is not in the vertical direction, the motor drives the rotating shaft 5035, the ring seat 502, the first push rod 5031, the first arc plate 5032, the sharp corner plate 5033, the central cylinder 504 and the steel pipe to deflect. The steel pipe drives the contact plate 7047, the support rod 7046 and the arc part 7045 to deflect. The arc part 7045 slides in the arc groove 7044.

[0034] The working process of using the second positioning mechanism 7 in conjunction with the first positioning mechanism 5 to move the steel pipe: Simultaneously, the power system and the second push rod 703 are activated. As the power system drives the first moving box 4 to move on the slide rail, the second push rod 703 drives the sliding box 7041, the fourth push rod 7042, the back plate 7043, the arc-shaped part 7045, the support rod 7046, the contact plate 7047, and the steel pipe to move towards the welding machine 3. The first moving box 4 drives the deflection assembly 503, the central cylinder 504, and the steel pipe to move towards the welding machine 3. The two drive the steel pipe to move towards the welding machine 3 in sync, and the welding machine 3 performs welding on the steel pipe.

[0035] After the work is completed, the first moving box 4 and the moving component 704 are adjusted to their initial positions, the external exhaust fan is turned off, the external pipes are disassembled, and the steel pipes are unloaded by the workers.

[0036] By setting the second positioning mechanism 7, during the limiting stage, the fourth push rod 7042 drives the back plate 7043 and the contact plate 7047 to move towards the steel pipe, and the suction strip 7048 is attracted and fixed to the outer wall of the steel pipe, pressing the inner wall of the steel pipe onto the outer wall of the central cylinder 504, which not only eliminates the gap between the pipe walls, but also avoids surface scratches or thin-wall deformation that may be caused by rigid clamping.

[0037] By setting a second positioning mechanism 7, when the weld deviates from the vertical position, the central cylinder 504 drives the steel pipe to deflect, and then the steel pipe drives the arc-shaped part 7045 to slide in the arc-shaped groove 7044. This does not affect the free deflection of the steel pipe, and the elastic rod 7049 keeps the suction strip 7048 in continuous contact. During the welding feeding stage, the power system drives the first moving box 4 to move, and at the same time, the second push rod 703 drives the sliding box 7041, the back plate 7043 and the contact plate 7047 to move, so that the two side contact plates 7047, the central cylinder 504 and the steel pipe move simultaneously towards the welding machine 3, pressing the steel pipe in real time to prevent the outer wall of the steel pipe from loosening.

[0038] Working principle: Before using the equipment, select and install the corresponding size of the center cylinder 504 according to the size of the steel pipe. At this time, the fixing bracket 508 is in the mounting base 510, and the insertion rod 509 is in the mating interface of the docking plate 5034. According to the size of the center cylinder 504, adjust the first push rod 5031 to the corresponding stroke, and the center cylinder 504 is fixed by contacting the four first arc plates 5032, and the uppermost first arc plate 5032 has a pointed plate 5033, which is located in the third groove 506 of the center cylinder 504.

[0039] Two third push rods 707 are activated, which respectively drive two second arc-shaped plates 708 to move towards the central cylinder 504. The two second arc-shaped plates 708 are fixed in contact with both sides of the central cylinder 504, and together with the deflection assembly 503, they limit the height of the central cylinder 504. The worker manually places the slotted steel pipe over the outside of the central cylinder 504, with the weld seam directly above the area of ​​the first groove 8.

[0040] The fourth push rod 7042 is activated, which drives the back plate 7043, the arc-shaped part 7045, the support rod 7046 and the contact plate 7047 to move towards the steel pipe. The suction strip 7048 on the outside of the contact plate 7047 gradually attracts and fixes itself to the outside of the steel pipe, and squeezes the steel pipe so that the inner wall of the steel pipe is in complete contact with the outer wall of the central cylinder 504.

[0041] Then, the external exhaust fan is connected to the first channel 507 of the central cylinder 504 through an external pipe. The external exhaust fan is started, and under the action of negative pressure, the central cylinder 504 adsorbs and fixes the steel pipe through the through hole 505.

[0042] The fixing bracket 508 in the mounting base 510 is manually disassembled, and the insertion rod 509 gradually separates from the mating interface of the docking plate 5034. The camera in the connecting box 705 continuously monitors the steel pipe below it. When it is found that the weld of the steel pipe is not in the vertical direction, the motor drives the rotating shaft 5035, the annular seat 502, the first push rod 5031, the first arc plate 5032, the sharp corner plate 5033, the central cylinder 504, and the steel pipe to deflect. The steel pipe drives the contact plate 7047, the support rod 7046, and the arc member 7045 to deflect. The arc member 7045 slides in the arc groove 7044.

[0043] Then, the lifting rod 9 is activated, which drives the support plate 13 and the side plate 12 to move upward. The support plate 13 contacts the bottom of the central cylinder 504, and the side plate 12 contacts both sides of the central cylinder 504, thereby limiting the height of the central cylinder 504.

[0044] Simultaneously, the power system and the second push rod 703 are activated. As the power system drives the first moving box 4 to move on the slide rail, the second push rod 703 drives the sliding box 7041, the fourth push rod 7042, the back plate 7043, the arc-shaped part 7045, the support rod 7046, the contact plate 7047, and the steel pipe to move towards the welding machine 3. The first moving box 4 drives the deflection assembly 503, the central cylinder 504, and the steel pipe to move towards the welding machine 3. The two drive the steel pipe to move towards the welding machine 3 in sync, and the welding machine 3 performs welding on the steel pipe.

[0045] After the work is completed, the first moving box 4 and the moving component 704 are adjusted to their initial positions, the external exhaust fan is turned off, the external pipes are disassembled, and the steel pipes are unloaded by the workers.

[0046] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A steel pipe welding machine with adjustable function, comprising a machine body (1), characterized in that, Also includes: The welding machine (3) and the track (2) are installed on the body (1); The first movable box (4) and the second movable box (6) are slidably connected to the track (2); A first positioning mechanism (5) is provided inside the first movable box (4). The first positioning mechanism (5) includes a second groove (501) opened inside the first movable box (4), a deflection component (503) rotatably connected inside the second groove (501), a central cylinder (504) provided inside the deflection component (503), and a third groove (506) opened inside the central cylinder (504). The deflection component (503) is used to adjust the angle of the central cylinder (504) and the third groove (506).

2. The steel pipe welding machine with adjustment function according to claim 1, characterized in that: Also includes: The second positioning mechanism (7) is installed inside the second mobile box (6); A first groove (8) is formed inside the body (1) and a lifting rod (9) is installed inside the first groove (8); The central shaft (10) is set on the telescopic end of the lifting rod (9) and the support plate (13) is installed on the central shaft (10). An adjusting rod (11) is installed outside the central shaft (10), and a side plate (12) is connected to the end of the adjusting rod (11) away from the central shaft (10).

3. The steel pipe welding machine with adjustable function according to claim 1, characterized in that: The first positioning mechanism (5) further includes: The annular seat (502) is rotatably connected to the inside of the second groove (501), and the deflection component (503) is disposed inside the annular seat (502); A first channel (507) and a through hole (505) are opened inside the central tube (504).

4. The steel pipe welding machine with adjustable function according to claim 3, characterized in that: The first positioning mechanism (5) further includes: Mounting base (510) installed above the first mobile box (4); A retaining bracket (508) snapped into the mounting base (510) and a plug (509) connected to the retaining bracket (508).

5. The steel pipe welding machine with adjustable function according to claim 4, characterized in that: The deflection component (503) includes: The first push rod (5031) and the first arc plate (5032) connected to the telescopic end of the first push rod (5031) are provided inside the annular seat (502). Both the first arc plate (5032) and the first push rod (5031) are provided in multiple units. A pointed corner plate (5033) is provided on one of the first arc-shaped plates (5032); The mating plate (5034) installed on the annular seat (502) and the mating interface opened in the mating plate (5034), wherein the insert (509) is adapted to the mating interface; A rotating shaft (5035) is installed outside the annular seat (502), with one end of the rotating shaft (5035) away from the annular seat (502) extending into the first movable box (4).

6. The steel pipe welding machine with adjustment function according to claim 2, characterized in that: The second positioning mechanism (7) includes: A chute (701) is opened inside the second movable box (6); The second push rod (703) is installed inside the slide (701), and the movable component (704) is connected to the telescopic end of the second push rod (703).

7. The steel pipe welding machine with adjustment function according to claim 6, characterized in that: The second positioning mechanism (7) also includes: The connecting box (705) installed above the second mobile box (6) and the second channel (702) opened inside the connecting box (705); A fourth recess (706) is formed inside the second movable box (6); The third push rod (707) is located inside the fourth groove (706), and the second arc plate (708) is connected to the telescopic end of the third push rod (707).

8. The steel pipe welding machine with adjustment function according to claim 7, characterized in that: The moving component (704) includes: A sliding box (7041) is slidably connected inside the slide groove (701), and the sliding box (7041) is connected to the telescopic end of the second push rod (703); The fourth push rod (7042) is located inside the sliding box (7041), and the back plate (7043) is connected to the telescopic end of the fourth push rod (7042).

9. The steel pipe welding machine with adjustment function according to claim 8, characterized in that: The moving component (704) also includes: An arc-shaped groove (7044) is formed inside the back plate (7043) and an arc-shaped component (7045) is slidably connected inside the arc-shaped groove (7044). An elastic rod (7049) is installed inside the arc-shaped groove (7044), and the elastic rod (7049) is connected to the arc-shaped component (7045); A support rod (7046) is disposed outside the arc-shaped component (7045), and a contact plate (7047) is connected to the support rod (7046). A suction strip (7048) is disposed outside the contact plate (7047).

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