A three-arc automatic welding device

Abstract

The present invention relates to the technical field of three-arc welding equipment, mainly to a three-arc automatic welding device, including a welding gun, wherein three conductive nozzles and three independent channels for welding wire transmission are arranged in the welding gun, and the device also includes a discharge pipe arranged on the outside of the welding gun, the top of the discharge pipe is connected to the flux hopper through a conveying pipe, and a docking column and a recovery pipe are fixed to the bottom of the discharge pipe, a support frame is fixed to the outside of the recovery pipe, and a docking rod is rotatably installed on the outside of the support frame, and an isolation component is arranged between the docking column and the docking rod. The present invention optimizes the traditional three-wire arc welding mechanism, and can effectively limit the range of flux laying through the added isolation component, and at the same time, the driving wheel moves along the product surface to rotate the docking rod, and with the mutual cooperation of the linkage part and the paving component, the accumulated flux at the weld is leveled, so that the subsequent recovery pipe can quickly and effectively recover the flux during vacuum adsorption, and the recovery efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of three-arc welding equipment, in particular to a three-arc automatic welding device. Background Art

[0002] Three-wire arc welding usually refers to three-wire submerged arc welding, which is an efficient welding method and a type of multi-wire submerged arc welding. During welding, three welding wires form an arc with the weldment respectively, and the heat generated by the arc is used to melt the welding wires and the weldment to form a molten pool. As the welding progresses, the molten pool cools and solidifies to form a weld. It is especially commonly used in the welding of thick-walled components.

[0003] In existing three-arc welding, the high temperature generated by the arc will make the molten metal pool (liquid metal formed by the melting of welding wire and weldment) extremely easy to react with oxygen, nitrogen, etc. in the air. Therefore, during three-wire arc welding, flux is usually laid, and flux is used to ensure welding stability and weld quality. Usually after welding, the flux is recovered, and the traditional recovery method is to use an adsorption tube to adsorb and recover the laid flux. However, since the flux is laid in a pipe when it is discharged, it will accumulate at the weld and extend outward. When the accumulated flux is adsorbed and recovered, the flux at the bottom is difficult to be effectively recovered. The flux extending outward will cause the flux to be laid over a wide area, resulting in poor flux recovery efficiency. Summary of the Invention

[0004] The object of the present invention is to provide a three-arc automatic welding device to solve the problem of low flux recovery efficiency during three-wire arc welding proposed in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a three-arc automatic welding device, comprising a welding gun, wherein the welding gun is provided with three conductive nozzles and three independent channels for welding wire transmission, and further comprising a discharge pipe arranged on the outside of the welding gun, the top of the discharge pipe is connected to the flux funnel through a conveying pipe, and a docking column and a recovery pipe are fixed to the bottom of the discharge pipe, a support frame is fixed to the outside of the recovery pipe, and a docking rod is rotatably installed on the outside of the support frame, an isolation assembly is provided between the docking column and the docking rod, a vacuum suction pipe is fixed to the top of the recovery pipe, and traveling wheels are fixed to both ends of the docking rod, a leveling assembly is fixed on the recovery pipe, and a linkage part for driving the leveling assembly to swing is fixed on the docking rod.

[0006] Preferably, the isolation assembly includes two isolation belts, and docking plates are fixed to both ends of the docking column and fixed to one end of the two isolation belts through the two docking plates, and the other ends of the two isolation belts slide through the docking rod.

[0007] Preferably, the paving assembly includes a rotating rod rotatably mounted on the recovery pipe, one end of the rotating rod is fixed with a paving plate, and the other end of the rotating rod is fixed with a linkage rod connected to the linkage member.

[0008] Preferably, the support frame is provided with an installation opening at the position corresponding to the docking rod, and the linkage member is arranged on the outside of the docking rod in the installation opening, and the linkage member includes two linkage disks fixed on the outside of the docking rod, and the linkage rod is located between the two linkage disks. A plurality of linkage blocks are fixed at equal angles on adjacent sides of the two linkage disks, and the linkage blocks on the two linkage disks are cross-arranged with each other. The two linkage disks are driven to rotate by the rotation of the docking rod, so that the linkage rod swings along the rotating rod under the action of the linkage blocks.

[0009] Preferably, the isolation belt is made of elastic material.

[0010] Preferably, a shaking member that drives the isolation belt to shake is provided on the inner side of the traveling wheel, and the shaking member includes a plurality of docking protrusions fixed on the inner side of the traveling wheel, and a contact protrusion that is adapted to the docking protrusion is fixed at the position of the isolation belt corresponding to the traveling wheel. A tension spring is sleeved on the outer side of the docking rod, one end of the tension spring is fixed to the outer side of the isolation belt, and a swivel is fixed to the other end, and the tension spring is rotatably docked with the inner side of the traveling wheel through the swivel.

[0011] Preferably, the paving plate is made of high temperature resistant material.

[0012] Preferably, two shovel plates are rotatably mounted on the outer side of the docking rod, the two shovel plates are in contact with the outer side of the product, and extrusion pieces that abut against the support frame are fixed on the two shovel plates.

[0013] Preferably, the extrusion member includes an arc-shaped rod fixed on the shovel plate, one end of the arc-shaped rod slides through the support frame and is fixed with a limiting ball, and the outer side of the arc-shaped rod is covered with an arc-shaped spring that resists the shovel plate and the support frame.

[0014] Preferably, the outer side of the traveling wheel is engraved with anti-skid grooves to increase the friction when the traveling wheel moves on the outer side of the product.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention optimizes the traditional three-wire arc welding mechanism. By adding an isolation component, it can effectively limit the range of flux laying. At the same time, the driving wheel moves along the product surface to rotate the docking rod. With the mutual cooperation of the linkage parts and the leveling component, the flux accumulated at the weld is leveled, so that the subsequent recovery pipe can quickly and effectively recover the flux during vacuum adsorption, and the recovery efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the connection between the present invention as a whole and a curved surface product;

[0018] Figure 2 This is a schematic diagram of the connection between the present invention as a whole and a flat product;

[0019] Figure 3 This is a schematic diagram of another angle showing the connection between the present invention as a whole and a flat product;

[0020] Figure 4 This is a schematic diagram of the positional relationship among the recovery pipe, support frame, and travel wheels of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the flattened assembly after partial cross-section of the recovery pipe of the present invention;

[0022] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0023] Figure 7 It is a schematic diagram of the docking between the shovel plate and the docking rod of the present invention.

[0024] In the figure: 1. welding gun; 2. discharge pipe; 3. docking column; 4. recovery pipe; 5. support frame; 6. docking rod; 7. isolation assembly; 8. vacuum suction pipe; 9. traveling wheel; 10. paving assembly; 11. linkage part; 12. isolation belt; 13. docking plate; 14. rotating rod; 15. paving plate; 16. linkage rod; 17. installation port; 18. linkage disk; 19. linkage block; 20. shaking part; 21. docking protrusion; 22. contact protrusion; 23. tension spring; 24. swivel; 25. shovel plate; 26. extrusion part; 27. arc rod; 28. arc spring. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figure 1 - Figure 4, a three-arc automatic welding device shown in the figure includes a welding gun 1, which is provided with three conductive nozzles and three independent channels for welding wire transmission, and also includes a discharge pipe 2 arranged on the outside of the welding gun 1, the top of the discharge pipe 2 is connected to the flux funnel through a conveying pipe, and a docking column 3 and a recovery pipe 4 are fixed to the bottom of the discharge pipe 2, a support frame 5 is fixed to the outside of the recovery pipe 4, a docking rod 6 is rotatably installed on the outside of the support frame 5, an isolation component 7 is provided between the docking column 3 and the docking rod 6, a vacuum suction pipe 8 is fixed to the top of the recovery pipe 4, and a traveling wheel 9 fixed to both ends of the docking rod 6, a leveling component 10 is fixed on the recovery pipe 4, and a linkage 11 for driving the leveling component 10 to swing is fixed on the docking rod 6, wherein, in order to improve the rolling stability of the traveling wheel 9 when it moves on the outside of the product, anti-slip grooves are engraved on the outside of the traveling wheel 9 to improve the friction of the traveling wheel 9 when it moves on the outside of the product;

[0027] In this solution, during three-wire arc welding, the welding gun 1, the discharge pipe 2 and the recovery pipe 4 move synchronously, wherein the welding gun 1, the discharge pipe 2 and the recovery pipe 4 are respectively controlled by different lifting equipment. During welding, the discharge pipe 2 begins to discharge the flux, and then the flux is limited by the isolation component 7 to reduce its extension range. At the same time, when the recovery pipe 4 moves along the product, the driving wheel 9 will rotate accordingly, thereby driving the docking rod 6 and the linkage 11 to operate, so that the flattening component 10 will flatten the flux at the weld to both sides. During subsequent vacuum adsorption, it can effectively avoid the situation where the flux at the bottom of the accumulation cannot be adsorbed and recovered due to flux accumulation.

[0028] For further information, see Figure 1 - Figure 4 , the isolation assembly 7 includes two isolation belts 12, and docking plates 13 are fixed at both ends of the docking column 3, and are fixed to one end of the two isolation belts 12 through the two docking plates 13, and the other ends of the two isolation belts 12 slide through the docking rod 6;

[0029] In order to meet the requirements of operation on straight plates and curved plates, the isolation belt 12 is designed to be made of elastic material, has a certain elasticity, and can be bent to adapt to different curved plates.

[0030] It should be noted that: as the welding gun 1 and the discharge pipe 2 move, one end of the isolation belt 12 will be pulled to move, and then the recovery pipe 4 will move synchronously to ensure that the isolation belt 12 is laid on the outside of the product. Through the two isolation belts 12, the range of the flux discharged from the discharge pipe 2 extending outward can be reduced, so that the adsorption efficiency of the recovery pipe 4 is higher during subsequent recovery.

[0031] For further information, see Figure 4 - Figure 7The paving assembly 10 includes a rotating rod 14 rotatably mounted on the recovery pipe 4, one end of the rotating rod 14 is fixed with a paving plate 15, and the other end is fixed with a linkage rod 16 connected to the linkage member 11. In order to prevent the paving plate 15 from being damaged by high temperature, the paving plate 15 is designed to be made of high temperature resistant material;

[0032] Also, see Figure 4 - Figure 7 The support frame 5 is provided with a mounting opening 17 corresponding to the docking rod 6. The linkage member 11 is arranged on the outside of the docking rod 6 in the mounting opening 17. The linkage member 11 includes two linkage disks 18 fixed on the outside of the docking rod 6. The linkage rod 16 is located between the two linkage disks 18. A plurality of linkage blocks 19 are fixed at equal angles on adjacent sides of the two linkage disks 18. The linkage blocks 19 on the two linkage disks 18 are arranged crosswise with each other. The docking rod 6 rotates, driving the two linkage disks 18 to rotate, so that the linkage rod 16 swings along the rotating rod 14 under the action of the linkage blocks 19.

[0033] In this solution, the principle of spreading the flux accumulated at the weld seam during the movement of three-wire arc welding is as follows:

[0034] First, the equipment is moved synchronously with the welding gun 1, the discharge pipe 2 and the recovery pipe 4. During the movement, the driving wheel 9 fits the product and rotates accordingly, thereby driving the docking rod 6 to rotate, causing the linkage disk 18 to rotate, thereby driving the corresponding swing of the linkage rod 16, and driving the corresponding swing of the rotating rod 14 and the paving plate 15. The swing of the paving plate 15 is used to push the accumulated flux outward and flatten the piled flux, so that the flux can be recovered more effectively during subsequent vacuum adsorption, avoiding the inability to effectively recover the flux at the bottom during accumulation.

[0035] For further information, see Figure 5 - Figure 7 , two shovel plates 25 are rotatably installed on the outer side of the docking rod 6, and the two shovel plates 25 are in contact with the outer side of the product. An extrusion piece 26 that abuts against the support frame 5 is fixed on the two shovel plates 25;

[0036] The extrusion member 26 includes an arc rod 27 fixed on the shovel plate 25 , one end of the arc rod 27 slides through the support frame 5 and is fixed with a limiting ball. The outer side of the arc rod 27 is covered with an arc spring 28 that resists the shovel plate 25 and the support frame 5 .

[0037] In this solution, when the support frame 5 moves with the recovery pipe 4, in order to prevent the flux at the bottom from being adsorbed by the product, the designed shovel plate 25 and extrusion part 26 are used to make the shovel plate 25 move closely along the outside of the product, shovel up the adsorbed flux, and recover it with the help of the recovery pipe 4, further avoiding the omission of flux.

[0038] In this solution, the specific process of efficiently recovering flux during three-wire arc welding includes the following steps:

[0039] The first step is to fix the product and use the lifting equipment to put the welding gun 1, discharge pipe 2 and recovery pipe 4 into place;

[0040] In the second step, the material is discharged through the discharge pipe 2, and then welding is started, and the mobile device is used to drive the welding gun 1, the discharge pipe 2 and the recovery pipe 4 to move synchronously;

[0041] In the third step, during the movement, the driving wheel 9 is used to drive the docking rod 6 to rotate, and the linkage part 11 and the flattening component 10 are used to flatten the accumulated flux, and at the same time, the recovery pipe 4 is used for vacuum adsorption recovery.

[0042] Example 2: Please refer to Figure 4 - Figure 7 This embodiment further explains Example 1. The difference lies in that the structure between the traveling wheel 9 and the isolation belt 12 is optimized, so that the traveling wheel 9 can drive the isolation belt 12 to shake during the rotation, shaking off the flux between the isolation belts 12, which is conducive to vacuum adsorption recovery.

[0043] Specifically, a shaking member 20 is provided on the inner side of the traveling wheel 9 to drive the isolation belt 12 to shake. The shaking member 20 includes a plurality of docking protrusions 21 fixed on the inner side of the traveling wheel 9. A contact protrusion 22 adapted to the docking protrusion 21 is fixed at the position of the isolation belt 12 corresponding to the traveling wheel 9. A tension spring 23 is sleeved on the outer side of the docking rod 6. One end of the tension spring 23 is fixed to the outer side of the isolation belt 12, and the other end is fixed to a swivel 24, and the tension spring 23 is rotatably docked with the inner side of the traveling wheel 9 through the swivel 24.

[0044] In this solution, the rotation of the traveling wheel 9 is utilized to drive multiple docking protrusions 21 to dock with the contact protrusions 22 in sequence, and then cooperate with the tension spring 23 to realize the reciprocating shaking of the isolation belt 12, so that the flux near the recovery pipe 4 can be shaken before being recovered, making the flux looser and returning to adsorption recovery.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A three-arc automatic welding device comprising: A welding gun (1), wherein the welding gun (1) is provided with three conductive nozzles and three independent channels for welding wire transmission; It is characterized by further comprising: A discharge pipe (2) is arranged outside the welding gun (1), the top of the discharge pipe (2) is connected to the flux funnel through a delivery pipe, and a docking column (3) is fixed to the bottom of the discharge pipe (2), and; A recovery pipe (4), a support frame (5) is fixed on the outside of the recovery pipe (4), and a docking rod (6) is rotatably mounted on the outside of the support frame (5), an isolation component (7) is provided between the docking column (3) and the docking rod (6), a vacuum suction pipe (8) is fixed on the top of the recovery pipe (4), and; The traveling wheels (9) are fixed at both ends of the docking rod (6), the recovery pipe (4) is fixed with a paving assembly (10), and the docking rod (6) is fixed with a linkage member (11) for driving the paving assembly (10) to swing, the paving assembly (10) includes a rotating rod (14) rotatably mounted on the recovery pipe (4), one end of the rotating rod (14) is fixed with a paving plate (15), and the other end is fixed with a linkage rod (16) connected to the linkage member (11), the support frame (5) is provided with a mounting port (17) corresponding to the docking rod (6), and the linkage member (11 ) is arranged on the outside of the docking rod (6) in the installation port (17), the linkage member (11) includes two linkage disks (18) fixed on the outside of the docking rod (6), the linkage rod (16) is located between the two linkage disks (18), and a plurality of linkage blocks (19) are fixed at equal angles on adjacent sides of the two linkage disks (18), and the linkage blocks (19) on the two linkage disks (18) are arranged crosswise with each other. The docking rod (6) rotates, driving the two linkage disks (18) to rotate, so that the linkage rod (16) swings along the rotating rod (14) under the action of the linkage blocks (19).

2. The three-arc automatic welding device according to claim 1, characterized in that: The isolation assembly (7) includes two isolation belts (12), and docking plates (13) are fixed to both ends of the docking column (3). The two docking plates (13) are fixed to one end of the two isolation belts (12), and the other ends of the two isolation belts (12) slide through the docking rod (6).

3. The three-arc automatic welding device according to claim 2, characterized in that: The isolation belt (12) is made of elastic material.

4. The three-arc automatic welding device according to claim 2, characterized in that: A shaking member (20) for driving the isolation belt (12) to shake is provided on the inner side of the traveling wheel (9), and the shaking member (20) includes a plurality of docking protrusions (21) fixed on the inner side of the traveling wheel (9), and a contact protrusion (22) adapted to the docking protrusion (21) is fixed on the isolation belt (12) at a position corresponding to the traveling wheel (9), and a tension spring (23) is sleeved on the outer side of the docking rod (6), one end of the tension spring (23) is fixed to the outer side of the isolation belt (12), and the other end is fixed to a swivel (24), and the tension spring is rotatably docked with the inner side of the traveling wheel (9) through the swivel (24).

5. The three-arc automatic welding device according to claim 1, characterized in that: The paving plate (15) is made of high temperature resistant material.

6. The three-arc automatic welding device according to claim 1, characterized in that: Two shovel plates (25) are rotatably mounted on the outer side of the docking rod (6), the two shovel plates (25) are in contact with the outer side of the product, and an extrusion piece (26) is fixed on the two shovel plates (25) to abut against the support frame (5).

7. The three-arc automatic welding device according to claim 6, characterized in that: The extrusion member (26) includes an arc-shaped rod (27) fixed on the shovel plate (25), one end of the arc-shaped rod (27) slides through the support frame (5) and is fixed with a limiting ball, and the outer side of the arc-shaped rod (27) is covered with an arc-shaped spring (28) that is in contact with the shovel plate (25) and the support frame (5).

8. The three-arc automatic welding device according to claim 1, characterized in that: The outer side of the traveling wheel (9) is engraved with anti-skid grooves to increase the friction force when the traveling wheel (9) moves on the outer side of the product.

Images