Submerged-arc welding device for spiral seam welding steel pipe

Abstract

The utility model relates to the technical field of submerged arc welding machines, and discloses a submerged arc welding device for a spiral seam welding steel pipe, which comprises a base, a support vertical plate, a submerged arc welding machine main body and an L-shaped mounting plate, electric sliding rails are installed on the two sides of the top of the base through screws, electric sliding blocks are arranged in the electric sliding rails in a sliding mode, a supporting vertical plate is installed on the tops of the electric sliding blocks through bolts, a servo motor is installed on one side of the supporting vertical plate through an installation base, and an output shaft of the servo motor penetrates through the supporting vertical plate and is connected with a disc through a connecting disc. Positioning plates are welded to the two ends of one side of the disc, horizontal clamping electric cylinders are mounted on the outer sides of the positioning plates through mounting bases, and output shafts of the horizontal clamping electric cylinders penetrate through the positioning plates and are connected with arc-shaped clamping plates through screws; the submerged-arc welding device for the steel pipe enables the clamped steel pipe to horizontally move while rotating, spiral seam welding of the steel pipe is finally achieved, the automation degree is high, and manpower and material resources are saved.

Description

Technical Field

[0001] This utility model relates to the field of submerged arc welding machine technology, and in particular to a submerged arc welding device for spiral seam welded steel pipes. Background Technology

[0002] Submerged arc welding is an electric arc welding method characterized by an electric arc burning under a layer of flux. The heat generated between the welding wire and the workpiece melts the contact surface, thus achieving a metal-to-metal connection. This welding method offers advantages such as high efficiency, good weld quality, high productivity, and a high degree of mechanization, and is therefore widely used in spiral seam welded steel pipes.

[0003] Previous submerged arc welding devices for spiral seam welded steel pipes have the following drawbacks: 1. They cannot make the clamped steel pipe rotate and move horizontally simultaneously to ultimately achieve spiral seam welding, resulting in low automation and being time-consuming and labor-intensive. Therefore, those skilled in the art have provided a submerged arc welding device for spiral seam welded steel pipes to solve the problems mentioned in the background art. Utility Model Content

[0004] The main objective of this invention is to provide a submerged arc welding device for spiral seam welded steel pipes, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A submerged arc welding device for spiral seam welded steel pipes includes a base, a support vertical plate, a submerged arc welding machine body, and an L-shaped mounting plate;

[0007] Both sides of the top of the base are equipped with electric slide rails by screws, and electric sliders slide within the electric slide rails. A support vertical plate is bolted to the top of the electric slider. A servo motor is mounted on one side of the support vertical plate via a mounting base, and the output shaft of the servo motor passes through the support vertical plate and is connected to a disc via a connecting plate. Positioning plates are welded to both ends of one side of the disc. A horizontal clamping electric cylinder is mounted on the outer side of the positioning plate via a mounting base. The output shaft of the horizontal clamping electric cylinder passes through the positioning plate and is connected to an arc-shaped clamping plate by screws. An L-shaped mounting plate is welded to one end of the base, and the top of the L-shaped mounting plate is mounted with a submerged arc welding machine body via a mounting base. A vertical adjustment electric cylinder is mounted on one end of the submerged arc welding machine body via a mounting base. A conductive nozzle is mounted on the output shaft of the vertical adjustment electric cylinder via a connecting block, and a flux delivery pipe is provided on one side of the conductive nozzle.

[0008] As a further embodiment of this utility model: a PLC controller is installed on one side of the submerged arc welding machine body by screws, and the output end of the PLC controller is electrically connected to the input end of the submerged arc welding machine body by wires.

[0009] As a further embodiment of this utility model: the welding wire of the submerged arc welding machine body passes through the conductive nozzle and the flux delivery pipe is connected to the flux cylinder of the submerged arc welding machine body. The flux in the flux storage cylinder is delivered out from the flux delivery pipe and enters the weld seam. The welding wire roller of the submerged arc welding machine body is used for wire feeding.

[0010] As a further embodiment of this utility model: a servo motor controller is installed on the upper end of the servo motor by screws, and the output end of the servo motor controller is electrically connected to the input end of the servo motor by wires. The servo motor controller automatically controls the speed of the servo motor, thereby causing the clamped steel pipe to rotate.

[0011] As a further improvement of this utility model, a U-shaped rod is bolted to the top of the base and located at the upper end of the electric slide rail.

[0012] As a further improvement of this utility model: guide sleeves are fitted on both sides of the supporting vertical plate, and a U-shaped rod passes through the guide sleeves.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Place one end of the steel pipe to be welded between the arc-shaped clamps. Use the horizontal clamping electric cylinder to move the arc-shaped clamps towards each other to clamp and fix the ends of steel pipes of different diameters. Use the vertical adjusting electric cylinder to move the conductive nozzle downward to contact the surface of the steel pipe to be welded. The flux in the flux storage cylinder is delivered from the flux delivery pipe to the weld seam. The wire is fed by the wire roller of the submerged arc welding machine body. The power supply is used to power the conductive nozzle, so that the arc burns under the flux layer for welding.

[0015] 2. The servo motor speed is automatically controlled by the servo motor controller, which causes the clamped steel pipe to rotate. The electric slider slides in the electric slide rail, which causes the clamped steel pipe to move horizontally, and finally realizes the spiral seam welding of the steel pipe. The automation level is high and saves manpower and material resources. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a submerged arc welding device for spiral seam welded steel pipes according to the present invention.

[0017] Figure 2 This is a side view of a submerged arc welding device for spiral seam welded steel pipes according to the present invention.

[0018] Figure 3 This utility model relates to a submerged arc welding device for spiral seam welded steel pipes. Figure 1 A schematic diagram of the structure at point A.

[0019] In the diagram: 1. Electric slide rail; 2. Electric slider; 3. U-shaped rod; 4. Guide sleeve; 5. Horizontal clamping electric cylinder; 6. Positioning plate; 7. Disc; 8. Supporting vertical plate; 9. Arc-shaped clamping plate; 10. Vertical adjustment electric cylinder; 11. Submerged arc welding machine body; 12. PLC controller; 13. Flux delivery pipe; 14. L-shaped mounting plate; 15. Base; 16. Servo motor controller; 17. Servo motor; 18. Conductive nozzle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 In this embodiment of the utility model, a submerged arc welding device for spiral seam welded steel pipe includes a base 15, a support vertical plate 8, a submerged arc welding machine body 11, and an L-shaped mounting plate 14.

[0022] Electric slide rails 1 are mounted on both sides of the top of the base 15 by screws, and electric sliders 2 slide inside the electric slide rails 1. A support vertical plate 8 is mounted on the top of the electric slider 2 by bolts. A servo motor 17 is mounted on one side of the support vertical plate 8 by a mounting base, and the output shaft of the servo motor 17 passes through the support vertical plate 8 and is connected to a disc 7 by a connecting plate. Positioning plates 6 are welded to both ends of one side of the disc 7. A horizontal clamping electric cylinder 5 is mounted on the outside of the positioning plate 6 by a mounting base. The output shaft of the horizontal clamping electric cylinder 5 passes through the positioning plate 6 and is connected to an arc-shaped clamping plate 9 by screws. An L-shaped mounting plate 14 is welded to one end of the base 15, and a submerged arc welding machine body 11 is mounted on the top of the L-shaped mounting plate 14 by a mounting base. A vertical adjustment electric cylinder 10 is mounted on one end of the submerged arc welding machine body 11 by a mounting base. A conductive nozzle 18 is mounted on the output shaft of the vertical adjustment electric cylinder 10 by a connecting block, and a flux delivery pipe 13 is provided on one side of the conductive nozzle 18.

[0023] A PLC controller 12 is mounted on one side of the submerged arc welding machine body 11 by screws, and the output terminal of the PLC controller 12 is electrically connected to the input terminal of the submerged arc welding machine body 11 by wires; the PLC controller 12 facilitates automatic control of the welding operation of the submerged arc welding machine body 11.

[0024] In this submerged arc welding machine body 11, the welding wire passes through the conductive nozzle 18 and the flux delivery pipe 13 is connected to the flux cylinder of the submerged arc welding machine body 11; the flux in the flux storage cylinder is delivered out from the flux delivery pipe 13 and enters the weld seam, and the welding wire roller of the submerged arc welding machine body 11 is used for wire feeding.

[0025] The upper end of the servo motor 17 is equipped with a servo motor controller 16 by screws, and the output end of the servo motor controller 16 is electrically connected to the input end of the servo motor 17 by wires; the servo motor controller 16 automatically controls the speed of the servo motor 17, thereby causing the clamped steel pipe to rotate.

[0026] The base 15 is bolted to a U-shaped rod 3 at its top and above the electric slide rail 1, allowing the guide sleeve 4 to slide on the U-shaped rod 3.

[0027] The support vertical plate 8 is fitted with guide sleeves 4 on both sides and a U-shaped rod 3 passes through the guide sleeves 4; the guide sleeves 4 slide on the U-shaped rod 3 to improve the stability of the movement of the support vertical plate 8 and reduce swaying.

[0028] The working principle of this utility model is as follows: one end of the steel pipe to be welded is placed between the arc-shaped clamping plates 9. The horizontal clamping electric cylinder 5 drives the arc-shaped clamping plates 9 to move towards each other, which facilitates the clamping and fixing of steel pipe ends of different diameters. The vertical adjusting electric cylinder 10 drives the conductive nozzle 18 to move downward to contact the surface of the steel pipe to be welded. The flux in the flux storage cylinder is delivered from the flux delivery pipe 13 to the weld seam. The wire roller of the submerged arc welding machine body 11 feeds the wire. The power supply powers the conductive nozzle 18, so that the arc burns under the flux layer for welding. The servo motor controller 16 automatically controls the speed of the servo motor 17, so that the clamped steel pipe rotates. The electric slider 2 slides in the electric slide rail 1, so that the clamped steel pipe moves horizontally. Finally, the spiral seam welding of the steel pipe is realized. The degree of automation is high and manpower and material resources are saved.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A submerged arc welding device for spiral seam welded steel pipe, comprising a base (15), a support vertical plate (8), a submerged arc welding machine body (11), and an L-shaped mounting plate (14). Its characteristics are: Electric slide rails (1) are installed on both sides of the top of the base (15) by screws, and electric sliders (2) slide inside the electric slide rails (1). A support vertical plate (8) is installed on the top of the electric slider (2) by bolts. A servo motor (17) is installed on one side of the support vertical plate (8) by a mounting base, and the output shaft of the servo motor (17) passes through the support vertical plate (8) and is connected to a disc (7) by a connecting plate. Positioning plates (6) are welded to both ends of one side of the disc (7). A horizontal clamping electric cylinder is installed on the outside of the positioning plate (6) by a mounting base. 5) The output shaft of the horizontal clamping electric cylinder (5) passes through the positioning plate (6) and is connected to the arc-shaped clamping plate (9) by screws. An L-shaped mounting plate (14) is welded to one side of the end of the base (15), and the top of the L-shaped mounting plate (14) is mounted on the submerged arc welding machine body (11) through the mounting seat. A vertical adjustment electric cylinder (10) is mounted on one end of the submerged arc welding machine body (11) through the mounting seat. A conductive nozzle (18) is mounted on the output shaft of the vertical adjustment electric cylinder (10) through the connecting block, and a flux delivery pipe (13) is provided on one side of the conductive nozzle (18).

2. The submerged arc welding device for spiral seam welded steel pipes according to claim 1, characterized in that: A PLC controller (12) is installed on one side of the submerged arc welding machine body (11) by screws, and the output end of the PLC controller (12) is electrically connected to the input end of the submerged arc welding machine body (11) by wires.

3. The submerged arc welding device for spiral seam welded steel pipes according to claim 1, characterized in that: The welding wire of the submerged arc welding machine body (11) passes through the conductive nozzle (18) and the flux delivery pipe (13) is connected to the flux cylinder of the submerged arc welding machine body (11).

4. The submerged arc welding device for spiral seam welded steel pipes according to claim 1, characterized in that: The upper end of the servo motor (17) is fitted with a servo motor controller (16) by screws, and the output end of the servo motor controller (16) and the input end of the servo motor (17) are electrically connected by wires.

5. The submerged arc welding device for spiral seam welded steel pipes according to claim 1, characterized in that: A U-shaped rod (3) is bolted to the top of the base (15) and to the upper end of the electric slide rail (1).

6. The submerged arc welding device for spiral seam welded steel pipes according to claim 1, characterized in that: Guide sleeves (4) are fitted on both sides of the support vertical plate (8), and the U-shaped rod (3) passes through the guide sleeves (4).

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