A submerged arc welding head device

Abstract

The present invention relates to the technical field of submerged arc welding, and specifically relates to a submerged arc welding head device. A track adapted to a vertical frame is provided on a crossbeam support. A welding flux container is fixed on the vertical frame. The welding flux container is arranged on one side of a welding wire. One end of a conductive copper bar is horizontally arranged at the lower end of the welding wire. A conductive rod is arranged on the lower surface of the conductive copper bar. The conductive copper bar is provided with a perforation. The outer wall of a conduit of the upper welding wire is embedded in the perforation, and the outer wall of the lower conductive rod is embedded in the perforation. The welding wire is perpendicular to the conductive rod. A square tube wraps the conductive copper bar and abuts against the conductive rod and the welding wire. A secondary cable is arranged in the inner cavity of the square tube. The secondary cable abuts against the conductive copper bar. A locking rod is arranged on the upper surface of the square tube. A rotating shaft is arranged on the lower surface of the square tube. An insulating plate is installed in the square tube. An output wire of a power supply box is connected to the secondary cable, and a ground wire of the power supply box is connected to the ground. The present invention can be finely adjusted back and forth, realizing the fine adjustment back and forth when the positions of the conductive rods of the welding heads are asynchronous back and forth, ensuring the consistency of multi-head welding, and reducing the backflow of the deposited metal during the welding process.

Description

Technical Field

[0001] The present invention relates to the technical field of submerged arc welding, and particularly to a submerged arc welding head device. Background Art

[0002] At present, the welding heads of submerged arc welding special machines are more or less the same. Whether the wire feeding motor adopts a vertical wire feeding form or a horizontal wire feeding form, the wire feeding mechanism is supported by a fixed bracket, and the welding secondary wire is connected to the conductive rod below it. The welding head is relatively fixed. If a single head is relatively backward, or as the number of welding layers increases and its relative offset position needs to be adjusted, only the rest of the welding heads can be stopped from arc welding, and the overall front movement of the gantry frame of the submerged arc welding special machine is used for adjustment. The operation is rather troublesome, increasing the number of joints and affecting the welding quality. Since the welding machine secondary wire is arranged outside the support rod, the temperature is relatively high, and the insulation part is prone to electric connection problems, increasing the failure rate and affecting the continuous production. Summary of the Invention

[0003] The purpose of the present invention is to adjust the position of the welding head, improve efficiency and quality, and at the same time reduce the occurrence of electric connection in the insulation part, affecting production efficiency.

[0004] To achieve the above technology, the present invention provides the following technical solutions:

[0005] A submerged arc welding head device includes: a crossbeam support, a vertical frame, a power supply box, a welding flux container 1, a welding wire 2, a conductive rod 3, a square tube 4, a secondary cable 5, a locking rod 6, a rotating shaft 7, an insulating plate 8, and a conductive copper bar 9. A track adapted to the vertical frame is provided on the crossbeam support. The welding flux container 1 is fixed on the vertical frame. The welding flux container 1 is arranged on one side of the welding wire 2. One end of the conductive copper bar 9 is horizontally arranged at the lower end of the welding wire 2. The lower surface of the conductive copper bar 9 is provided with the conductive rod 3. The conductive copper bar 9 is provided with a perforation, and the outer wall of the conduit of the upper welding wire 2 is inlaid in the perforation, and the outer wall of the lower conductive rod 3 is inlaid in the perforation. The welding wire 2 is perpendicular to the conductive rod 3. The square tube 4 wraps the conductive copper bar 9 and is abutted against the conductive rod 3 and the welding wire 2. The secondary cable 5 is arranged in the inner cavity of the square tube 4 and abuts against the conductive copper bar 9. The locking rod 6 is arranged on the upper surface of the square tube 4, and the rotating shaft 7 is arranged on the lower surface of the square tube 4. The insulating plate 8 is installed in the square tube 4. The output wire of the power supply box is connected to the secondary cable 5, and the ground wire of the power supply box is connected to the ground.

[0006] Further, the lower port of the welding flux container 1 is connected to the conductive rod 3 through a pipeline.

[0007] Further, the front end of the conductive copper bar 9 is arranged on the bottom surface of the welding wire 2 and the top surface of the conductive rod 3 and is provided with a through hole.

[0008] Further, the upper surface of the square tube 4 is provided with an internal thread hole adapted to the locking rod 6.

[0009] Furthermore, a long through hole is horizontally provided on one side of the lower surface of the square tube 4 , and the long through hole is adapted to the rotating shaft 7 , and the teeth of the rotating shaft 7 are adapted to a row of teeth provided on the lower surface of the conductive copper rod 9 .

[0010] Furthermore, the insulating plate 8 is installed inside the square tube 4 and is provided with a perforated fixed conductive copper rod 9.

[0011] Furthermore, the upper surface of the insulating plate 8 abuts against the upper inner wall of the square tube 4 and is provided with an internal thread adapted to the locking rod 6 .

[0012] Furthermore, several vertical frames can be provided.

[0013] Compared with the prior art, the submerged arc welding head device provided by the present invention has the following beneficial effects:

[0014] 1. The present invention provides a submerged arc welding head device, the rotating axis of which can be fine-tuned forward and backward to achieve fine-tuning when the positions of the conductive rods of the welding heads are not synchronized, thereby ensuring the consistency of welding of multiple heads and reducing the backflow of deposited metal during welding.

[0015] 2. The present invention provides a submerged arc welding head device that inserts the secondary wire of the welding machine into a square tube, thereby preventing the wires from being exposed during use and reducing poor insulation protection and damage to the wires caused by high temperature radiation from the rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of a submerged arc welding head device provided by the present invention.

[0018] Markings in the figure: 1- flux container; 2- welding wire; 3- conductive rod; 4- square tube; 5- secondary cable; 6- locking rod; 7- rotating shaft; 8- insulating plate; 9- conductive copper rod. DETAILED DESCRIPTION

[0019] The technical solutions of the present invention will be clearly and completely described below through specific implementation methods. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0020] like Figure 1As shown in the figure, the submerged arc welding head device includes: a crossbeam support (not shown in the figure), a vertical frame (not shown in the figure), a power supply box (not shown in the figure), a welding flux container 1, a welding wire 2, a conducting rod 3, a square tube 4, a secondary cable 5, a locking rod 6, a rotating shaft 7, an insulating plate 8, and a conducting copper bar 9; a track adapted to the vertical frame is provided on the crossbeam support, the welding flux container 1 is fixed on the vertical frame, the welding flux container 1 is arranged on one side of the welding wire 2, one end of the conducting copper bar 9 is horizontally arranged at the lower end of the welding wire 2, the conducting rod 3 is arranged on the lower surface of the conducting copper bar 9, a perforation is provided in the conducting copper bar 9, the outer wall of the conduit of the upper welding wire 2 is inlaid in the perforation, and the outer wall of the lower conducting rod 3 is inlaid in the perforation. The welding wire 2 is perpendicular to the conducting rod 3. The square tube 4 wraps the conducting copper bar 9 and is arranged in contact with the conducting rod 3 and the welding wire 2. The secondary cable 5 is arranged in the inner cavity of the square tube 4 and is in contact with the conducting copper bar 9. The locking rod 6 is arranged on the upper surface of the square tube 4, the rotating shaft 7 is arranged on the lower surface of the square tube 4, the insulating plate 8 is installed in the square tube 4, the output wire of the power supply box is connected to the secondary cable 5, and the ground wire of the power supply box is connected to the ground. By providing a track on the crossbeam support that is adapted to the vertical frame, several vertical frames can be set as needed to perform synchronous welding work. At the same time, several welding heads are connected to the vertical frame. The welding joint is provided with a horizontal conducting copper bar 9. One end of the conducting copper bar 9 is provided with a square tube 4 to protect the secondary cable from damage. The rotating shaft 7 is arranged on the lower surface of the square tube 4. Multiple welding operations can be carried out simultaneously. After the faulty welding head is repaired, it is pushed forward by adjusting the rotating shaft 7 to ensure that the welding operation can proceed normally and prevent missed welding.

[0021] Preferably, the lower port of the welding flux container 1 is connected to the conducting rod 3 through a pipeline, which facilitates the welding flux to flow into the conducting rod for welding work.

[0022] Preferably, the front end of the conducting copper bar 9 is arranged on the bottom surface of the welding wire 2 and the top surface of the conducting rod 3, and a through hole is provided to facilitate the welding wire 2 to pass through the conducting copper bar 9 and the conducting rod 3 smoothly.

[0023] Preferably, the upper surface of the square tube 4 is provided with an internal threaded hole adapted to the locking rod 6.

[0024] Preferably, a long perforation is horizontally arranged on one side of the lower surface of the square tube 4, the long perforation is adapted to the rotating shaft 7, and the teeth of the rotating shaft 7 are adapted to a row of teeth arranged on the lower surface of the conducting copper bar 9.

[0025] Preferably, the insulating plate 8 is installed inside the square tube 4 and is provided with a perforation to fix the conducting copper bar 9.

[0026] Preferably, the upper surface of the insulating plate 8 is in contact with the upper inner wall of the square tube 4 and is provided with an internal thread adapted to the locking rod 6.

[0027] Preferably, several vertical frames can be provided.

[0028] The embodiments described above are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the spirit of the present invention's design, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An SAW (Submerged Arc Welding) head device, characterized in that, Including: Crossbeam support, vertical frame, power supply box, welding flux container (1), welding wire (2), conducting rod (3), square pipe (4), secondary cable (5), locking rod (6), rotating shaft (7), insulating plate (8), conducting copper bar (9); a track adapted to the vertical frame is provided on the crossbeam support, the welding flux container (1) is fixed on the vertical frame, the welding flux container (1) is arranged on one side of the welding wire (2), the conducting copper bar (9) is horizontally arranged under the welding wire (2), the conducting rod (3) is arranged on the lower surface of the conducting copper bar (9), the conducting copper bar (9) is provided with a perforation, the outer wall of the conduit of the welding wire (2) is inlaid above the perforation, and the outer wall of the conducting rod (3) is inlaid below the perforation. The welding wire (2) is perpendicular to the conducting copper bar (9). The square pipe (4) wraps the conducting copper bar (9) and abuts against the conducting rod (3) and the conduit of the welding wire (2). The secondary cable (5) is arranged in the inner cavity of the square pipe (4) and abuts against the conducting copper bar (9). The locking rod (6) is arranged on the upper surface of the square pipe (4), the rotating shaft (7) is arranged on the lower surface of the square pipe (4), the insulating plate (8) is installed in the square pipe (4), the output wire of the power supply box is connected to the secondary cable (5), and the ground wire of the power supply box is connected to the ground; an internal thread hole adapted to the locking rod (6) is provided on the upper surface of the square pipe (4); a long perforation is horizontally arranged on one side of the lower surface of the square pipe (4), the long perforation is adapted to the rotating shaft (7), and the teeth of the rotating shaft (7) are adapted to a row of teeth provided on the lower surface of the conducting copper bar (9); the insulating plate (8) is installed inside the square pipe (4) and is provided with a perforation for fixing the conducting copper bar (9); the upper surface of the insulating plate (8) abuts against the upper inner wall of the square pipe (4) and is provided with an internal thread adapted to the locking rod (6).

2. The submerged arc welding head device according to claim 1, characterized in that: The lower port of the welding flux container (1) is communicated with the conducting rod (3) through a pipeline.

3. The submerged arc welding head device according to claim 1, characterized in that: The front end of the conducting copper bar (9) is arranged on the bottom surface of the welding wire (2) and the top surface of the conducting rod (3) and is provided with a through hole.

4. The submerged arc welding head device according to claim 1, characterized in that: A plurality of vertical frames can be provided.

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