Automatic steel pipe welding machine

Abstract

The utility model belongs to the technical field of welding machines and discloses an automatic steel pipe welding machine which comprises a guide rail frame, mounting plates are arranged at the two ends of the top of the guide rail frame, threaded blocks are arranged at the bottoms of the mounting plates, a two-way screw is arranged in the guide rail frame, an outer welding frame is arranged at the tops of the mounting plates, and an outer hydraulic rod is arranged at the top of the outer welding frame. Outer welding heads are arranged at the bottoms of the outer hydraulic rods, inner welding frames are arranged outside the mounting plates, electric push rods are arranged at the tops of the inner welding frames, inner hydraulic rods are arranged at the tail ends of the electric push rods, and inner welding heads are arranged at the bottoms of the inner hydraulic rods. According to the steel pipe welding device, the inner welding head, the outer welding head, the outer hydraulic rod, the inner hydraulic rod and the electric push rod are matched, the function of adjusting according to the length and diameter of a steel pipe is achieved, the steel pipe welding device is suitable for steel pipes of different models, welding positions at the two ends of the steel pipe can be internally and externally welded at the same time, and therefore the welding efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding machines, and in particular relates to an automatic steel pipe welding machine. Background Art

[0002] As the name suggests, steel pipe refers to steel with a hollow cross-section. Generally, steel pipes can be divided into round, square, rectangular and special-shaped ones according to the cross-sectional shape. Steel pipes are also widely used in boiler pipes.

[0003] At present, the existing steel pipe welding machines need to weld on the outside and inside of the welding point when welding steel pipes. Most welding machines cannot perform simultaneous processing. In addition, the diameters and lengths of the welded steel pipes are different, and different types of welding machines need to be used for welding, which greatly reduces the applicability of the welding machine. For this reason, we propose an automated steel pipe welding machine. Utility Model Content

[0004] The purpose of the utility model is to provide an automated steel pipe welding machine to solve the existing problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automated steel pipe welding machine, comprising a guide rail frame, an external welding frame and an internal welding frame, the top two ends of the guide rail frame are movably connected with mounting plates, a threaded block is welded at the bottom center position of the mounting plate, a bidirectional screw is movably connected to the inside of the guide rail frame through a bearing, the threaded block is sleeved on the outer circumference of the bidirectional screw and spirally connected thereto, an external welding frame is fixedly welded to one end of the top of the mounting plate, an external hydraulic rod is installed at the top end of the external welding frame, an external welding head is provided at the bottom of the external hydraulic rod, an internal welding frame is fixedly installed on one side of the outside of the mounting plate, an electric push rod is installed at the top of the internal welding frame, an internal hydraulic rod is fixedly installed at the end of the electric push rod through a mounting block, an internal welding head is provided at the bottom of the internal hydraulic rod, and the internal welding head is located below the external welding head.

[0006] Preferably, arc-shaped brackets are fixedly installed on both sides of the top of the mounting plate, and driven rollers and driving rollers are installed on both sides of the top of the arc-shaped bracket through bearings. One end of the driving roller is fixedly connected to a driven gear, and a driving motor is arranged between the two arc-shaped brackets. The driving motor is a double-headed servo motor, and driving gears are arranged on both output shaft ends of the driving motor. The driving gear extends to the interior of the arc-shaped bracket and is meshed with the driven gear.

[0007] Preferably, rollers are installed on both sides of both ends of the bottom of the mounting plate, and the rollers are fixedly mounted on the bottom of the mounting plate via mounting seats.

[0008] Preferably, both sides of the top of the guide rail frame are provided with limiting grooves, and the rollers are placed inside the limiting grooves and are rollingly connected thereto.

[0009] Preferably, an adjusting motor is provided at one end of the bidirectional screw, and the output shaft end of the adjusting motor is fixedly connected to one end of the bidirectional screw.

[0010] Preferably, an electric control box is provided at one end of the outer portion of the guide rail frame, and the electric control box is fixedly mounted to one end of the guide rail frame by welding.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By using a bidirectional screw, an adjusting motor and a threaded block, the distance between the two mounting plates can be adjusted. By coordinating the inner welding joint and the outer welding joint, as well as the outer hydraulic rod, the inner hydraulic rod and the electric push rod, the function of adjusting according to the length and diameter of the steel pipe can be realized, so as to be suitable for different types of steel pipes, and the welding points at both ends of the steel pipe can be welded internally and externally at the same time, thereby greatly improving the welding efficiency.

[0013] 2. By using the driving motor, the driving gear and the driven gear to drive the driving roller to rotate at a constant speed, the steel pipe is driven to rotate at a constant speed in the arc bracket, thereby achieving the purpose of fast automatic welding and improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a side view structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the top structure of the mounting plate of the utility model;

[0017] Figure 4 This is a schematic diagram of the driving roller structure of the utility model.

[0018] In the figure: 1. guide rail frame; 2. limit groove; 3. bidirectional screw; 4. adjustment motor; 5. electric control box; 6. mounting plate; 7. roller; 8. external welding frame; 9. external hydraulic rod; 10. external welding joint; 11. threaded block; 12. arc bracket; 13. driven roller; 14. driving roller; 15. driven gear; 16. driving motor; 17. driving gear; 18. internal welding frame; 19. electric push rod; 20. internal hydraulic rod; 21. internal welding joint. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution for an automated steel pipe welding machine: it includes a guide rail frame 1, an external welding frame 8 and an internal welding frame 18, both ends of the top of the guide rail frame 1 are movably connected with a mounting plate 6, a threaded block 11 is welded at the bottom center of the mounting plate 6, a bidirectional screw 3 is movably connected to the inside of the guide rail frame 1 through a bearing, the threaded block 11 is sleeved on the outer periphery of the bidirectional screw 3 and spirally connected thereto, an external welding frame 8 is fixedly welded to one end of the top of the mounting plate 6, an external hydraulic rod 9 is installed at the top end of the external welding frame 8, an external welding head 10 is provided at the bottom of the external hydraulic rod 9, an internal welding frame 18 is fixedly installed on one side of the outside of the mounting plate 6, an electric push rod 19 is installed at the top of the internal welding frame 18, an internal hydraulic rod 20 is fixedly installed at the end of the electric push rod 19 through a mounting block, an internal hydraulic rod 20 is provided at the bottom of the internal hydraulic rod 20, and an internal welding head 21 is located below the external welding head 10.

[0021] Specifically, arc-shaped brackets 12 are fixedly installed on both sides of the top of the mounting plate 6, and driven rollers 13 and driving rollers 14 are installed on both sides of the top of the arc-shaped bracket 12 through bearings. One end of the driving roller 14 is fixedly connected to a driven gear 15, and a driving motor 16 is arranged between the two arc-shaped brackets 12. The driving motor 16 is a double-headed servo motor. Both output shaft ends of the driving motor 16 are provided with driving gears 17. The driving gear 17 extends to the interior of the arc-shaped bracket 12 and is meshed with the driven gear 15.

[0022] Specifically, rollers 7 are installed on both sides of the two ends of the bottom of the mounting plate 6, and the rollers 7 are fixedly installed around the bottom of the mounting plate 6 through mounting seats.

[0023] Specifically, both sides of the top of the guide rail frame 1 are provided with limiting grooves 2, and the rollers 7 are placed inside the limiting grooves 2 and are rollingly connected thereto.

[0024] Specifically, an adjusting motor 4 is disposed at one end of the bidirectional screw 3 , and a terminal end of an output shaft of the adjusting motor 4 is fixedly connected to one end of the bidirectional screw 3 .

[0025] Specifically, an electric control box 5 is disposed at one end of the outer portion of the guide rail frame 1 , and the electric control box 5 is fixedly mounted to one end of the guide rail frame 1 by welding.

[0026] In this embodiment, when in use, according to the length of the steel pipe, the motor 4 is adjusted to drive the bidirectional screw 3 to rotate, and the threaded block 11 is matched to adjust the spacing between the two mounting plates 6, so as to be suitable for steel pipes of different lengths. Then, the steel pipe to be welded is placed on the arc bracket 12, so that the welding seam is placed between the two arc brackets 12 on the same mounting plate 6, and the outer hydraulic rod 9 is used to drive the outer welding head 10 to weld the outside of the welding place, and at the same time, the electric push rod 19 is used to push the inner hydraulic rod 20 with the inner welding head 21 to extend to the welding place inside the steel pipe, and the inside of the welding place is synchronously welded. During the welding process, the driving motor 16 is used to drive the driving gears 17 at the two output shaft ends to rotate, so that the driven gear 15 is driven to rotate, thereby driving the driving roller 14 to rotate at a uniform speed, and the driving roller 14 rotates with the steel pipe, thereby realizing the automatic welding function. Since the position height of the external welding head 10 and the internal welding head 21 is adjusted by the external hydraulic rod 9 and the internal hydraulic rod 20, and the lateral position of the internal welding head 21 is adjusted by the electric push rod 19, during welding, it can be freely adjusted according to the diameter of the steel pipe, so as to be suitable for steel pipes of different diameters.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated steel pipe welding machine, comprising a guide rail frame (1), an external welding frame (8) and an internal welding frame (18), characterized in that: Both ends of the top of the guide rail frame (1) are movably connected with a mounting plate (6), a threaded block (11) is welded at the center of the bottom of the mounting plate (6), a bidirectional screw rod (3) is movably connected to the inside of the guide rail frame (1) through a bearing, the threaded block (11) is sleeved on the outer circumference of the bidirectional screw rod (3) and is spirally connected thereto, an external welding frame (8) is fixedly welded to one end of the top of the mounting plate (6), an external hydraulic rod (9) is installed at the top end of the external welding frame (8), an external welding joint (10) is provided at the bottom of the external hydraulic rod (9), an internal welding frame (18) is fixedly installed on one side of the outside of the mounting plate (6), an electric push rod (19) is installed at the top of the internal welding frame (18), an internal hydraulic rod (20) is fixedly installed at the end of the electric push rod (19) through a mounting block, an internal welding joint (21) is provided at the bottom of the internal hydraulic rod (20), and the internal welding joint (21) is located below the external welding joint (10).

2. The automatic steel pipe welding machine according to claim 1, characterized in that: The top two sides of the mounting plate (6) are fixedly mounted with arc-shaped brackets (12), the top two sides of the arc-shaped bracket (12) are mounted with driven rollers (13) and driving rollers (14) through bearings, one end of the driving roller (14) is fixedly connected with a driven gear (15), a driving motor (16) is arranged between the two arc-shaped brackets (12), the driving motor (16) is a double-headed servo motor, and both output shaft ends of the driving motor (16) are provided with driving gears (17), and the driving gears (17) extend into the interior of the arc-shaped bracket (12) and are meshedly connected with the driven gear (15).

3. The automatic steel pipe welding machine according to claim 1, characterized in that: Rollers (7) are installed on both sides of the two ends of the bottom of the mounting plate (6), and the rollers (7) are fixedly installed around the bottom of the mounting plate (6) through a mounting seat.

4. The automatic steel pipe welding machine according to claim 3, characterized in that: Limiting grooves (2) are provided on both sides of the top of the guide rail frame (1), and the roller (7) is placed inside the limiting groove (2) and is rollingly connected thereto.

5. The automatic steel pipe welding machine according to claim 1, characterized in that: An adjusting motor (4) is provided at one end of the bidirectional screw (3), and the output shaft end of the adjusting motor (4) is fixedly connected to one end of the bidirectional screw (3).

6. The automatic steel pipe welding machine according to claim 1, characterized in that: An electric control box (5) is provided at one end of the exterior of the guide rail frame (1), and the electric control box (5) is fixedly mounted to one end of the guide rail frame (1) by welding.

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