A submerged arc welding structure and device for a heavy plate box

Abstract

The utility model relates to a kind of thick plate box submerged arc welding welding structure and device, thick plate box submerged arc welding welding structure includes steel sheet one and steel sheet two, the bevel is formed between steel sheet one and steel sheet two, steel sheet one is not inclined, steel sheet two one side is opened bevel, steel sheet one is vertically installed on steel sheet two, the connecting place of steel sheet one and steel sheet two is equipped with backing plate, backing plate is located at the side of steel sheet two away from bevel, it is characterized in that, it further includes welding gun device, welding gun device includes front welding wire gun and rear welding wire gun, front welding wire gun working point is located in gradient, the angle of front welding wire gun inclination is consistent with gradient, rear welding wire gun working point is located at the edge of gradient, the angle of rear welding wire gun inclination is consistent with gradient.The utility model of a kind of thick plate box submerged arc welding welding structure and device adopts large diameter 6.4mm submerged arc welding wire and carries out welding, welding efficiency is high, can substantially reduce box body welding process key time;Submerged arc welding is welded in one pass, fills up weld, realizes the requirement of box body combination full penetration weld.

Description

Technical Field

[0001] This application relates to a submerged arc welding structure and device for thick plate box bodies, belonging to the field of building components. Background Technology

[0002] In steel structure construction, the combined welding of box bodies requires full penetration. The backing plate is made in the form of a bevel for single-sided welding, with a gap of 5-10mm between the steel plates, and the bevel is formed by the inclined surfaces between the steel plates.

[0003] The manufacturing process involves carbon dioxide gas shielded welding with a welding diameter of 1.2mm or 1.4mm. First, a root pass is welded, and after reaching a certain height, submerged arc welding is performed with a welding diameter of 4.8mm or 5.0mm.

[0004] Filling and capping welding are performed to achieve the requirements of full penetration weld and a beautiful appearance. Specifically, the flux tube is used to fill the bevel with flux, and the welding wire gun is used to weld the flux to the steel plate. When encountering symmetrical bevels, there is no need to adjust the angle of the flux tube and welding wire gun. However, when encountering asymmetrical bevels such as irregular V-shaped bevels, the angle of the irregular V-shaped bevel off-center is slope 'a'. In order to ensure the strength of the weld and a beautiful appearance, it is necessary to adjust the angle between the flux tube and welding wire gun and the bevel, so that the flux tube and welding wire gun are aligned with the center of the bevel opening as much as possible. That is, the working angle of the welding wire gun corresponds to the slope. Currently, the position of the welding gun is mainly adjusted manually, and there are two different welding processes, which consumes more resources and has low efficiency.

[0005] Therefore, in order to solve the above-mentioned technical problems, it is indeed necessary to provide a submerged arc welding structure and device for thick plate boxes to overcome the defects in the prior art. Utility Model Content

[0006] The purpose of this utility model is to provide a submerged arc welding structure and device for thick plate box bodies. It uses a large-diameter 6.4mm submerged arc welding wire for welding, which has high welding efficiency and can significantly reduce the critical time of the box body welding process. The submerged arc welding is completed in one pass, filling the weld seam and achieving the requirement of full penetration weld seam for the box body assembly.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A submerged arc welding structure for a thick plate box includes a steel plate one and a steel plate two, with a bevel formed between the steel plate one and the steel plate two. The steel plate one is not beveled, while the steel plate two has a bevel on one side. The steel plate one is vertically installed on the steel plate two. A pad is installed at the connection between the steel plate one and the steel plate two, with the pad located on the side of the steel plate two away from the bevel. The structure also includes a welding torch device, which includes a front welding torch device and a rear welding torch device. The front welding torch device includes a front welding wire gun, and the rear welding torch device includes a rear welding wire gun. The working point of the front welding wire gun is located within the slope, and the angle of inclination of the front welding wire gun is consistent with the slope. The working point of the rear welding wire gun is located at the edge of the slope, and the angle of inclination of the rear welding wire gun is consistent with the slope. The rear welding wire gun and the front welding wire gun are located on the same plane, and there is an included angle between the rear welding wire gun and the front welding wire gun.

[0008] The technical solution adopted by this utility model is as follows: a device for submerged arc welding of thick plate box bodies, including steel plate one and steel plate two, the inclined surfaces of steel plate one and steel plate two forming a bevel, characterized in that: it also includes a frame, on which a slope detection device and a welding torch device are sequentially installed, the slope detection device and the welding torch device are located directly above the bevel, a position adjustment device one is installed between the slope detection device and the frame, and a position adjustment device two and an angle adjustment device are installed between the welding torch device and the frame, the position adjustment device one is used to move the slope detection device from directly above the bevel to contact the bevel, the slope detection device can provide feedback on the angle data of the bevel, when the data is transmitted to the angle adjustment device, the angle adjustment device can adjust the position of the welding torch device until it matches the position of the bevel, the position adjustment device two is used to move the welding torch device from directly above the bevel to the bevel, the welding torch device is used to perform submerged arc welding on the bevel, the position adjustment device one and the position adjustment device two are slidably connected to the frame and can move along the welding direction.

[0009] By adopting the above technical solution, the position of the welding gun can be automatically adjusted according to different types of slopes to adapt to different types of bevels, reducing the need for manual adjustment of the welding gun device.

[0010] The device for submerged arc welding of thick plate box body according to the present invention is further configured as follows: a slope detection device, including a fixed plate fixedly connected to the position adjustment device, a gear rotatably connected to the fixed plate, the axis of the gear being located directly above the bevel, and detection rods meshing on both sides of the gear, with the two detection rods located above the steel plate one and the steel plate two respectively.

[0011] The device for submerged arc welding of thick plate box body according to the present invention is further configured as follows: two sliding grooves are opened on the fixed plate, the two sliding grooves are located on both sides of the gear, and the probe is slidably connected to the fixed plate.

[0012] By adopting the above technical solution, the probe rod can slide on the fixed plate, and the direction of the probe rod sliding is always consistent with the direction directly above the bevel.

[0013] The device for submerged arc welding of a thick plate box body according to the present invention is further configured such that the ends of the two probes near the bevel are respectively located on the inclined surfaces of steel plate one and steel plate two.

[0014] By adopting the above technical solution, the distance between the two probes near the bevel end is small, allowing both probes to enter the breach simultaneously, while the distance between the probes away from the bevel end is large, allowing the distance between the two probes to accommodate a gear.

[0015] The device for submerged arc welding of thick plate box body of this utility model is further configured as follows: an angle sensor is provided on the fixed plate, and the angle sensor can transmit the rotation angle of the gear to the angle adjustment device.

[0016] The device for submerged arc welding of thick plate box body according to the present invention is further configured as follows: the angle adjustment device includes an arc plate with an arc groove. The center of the arc plate is located directly above the bevel. One end of the welding gun device moves in the arc groove through a driving component. The working end of the flux tube of the welding gun device and the working end of the welding wire gun are located at the center of the arc plate.

[0017] By adopting the above technical solution, the drive component can adjust the position of one end of the welding gun device according to the data fed back by the angle sensor. Since the working end of the welding wire gun is always located at the center of the arc plate, adjusting the position of one end of the welding gun device can change the working angle of the welding wire gun, so that the welding wire gun can be matched with different types of slopes.

[0018] The device for submerged arc welding of thick plate box body according to the present invention is further configured as follows: the driving component includes a driving cylinder one and a driving cylinder two, a connecting rod one is rotatably connected to the working end of the driving cylinder one, a connecting rod two is rotatably connected to the working end of the driving cylinder two, the flux tube and the welding wire gun are slidably connected to the arc groove through the arc block, and the two ends of the arc block are connected to the connecting rod one and the connecting rod two.

[0019] By adopting the above technical solution, the slope detected by the angle sensor is fed back to drive cylinder one and drive cylinder two. Drive cylinder one and drive cylinder two can push the arc block so that the angle of the welding wire gun offset is consistent with the slope.

[0020] The device for submerged arc welding of thick plate box body according to the present invention is further configured as follows: the position adjustment device includes a cylinder, one end of the cylinder is mounted on the frame, the other end of the cylinder is mounted on the slope detection device, the cylinder is located directly above the bevel, and the output end of the cylinder faces the bevel.

[0021] By adopting the above technical solution, cylinder one is used to transport the probe of the slope detection device to the inclined surface of the steel plate.

[0022] The device for submerged arc welding of thick plate box body according to the present invention is further configured as follows: the position adjustment device two includes a cylinder two, one end of the cylinder two is mounted on the frame, the other end of the cylinder two is mounted on an arc plate, the cylinder two is located directly above the bevel, and the output end of the cylinder two faces the bevel.

[0023] By adopting the above technical solution, cylinder two is used to transport the center of the arc plate to the bevel.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The thick plate box body submerged arc welding structure in this utility model uses a large-diameter 6.4mm submerged arc welding wire for welding, which has high welding efficiency and can significantly reduce the critical time of the box body welding process; one submerged arc welding is used to fill the weld seam and achieve the requirement of full penetration weld seam of the box body assembly.

[0026] 2. The position adjustment device in the submerged arc welding structure of the thick plate box in this utility model can measure the slope, thereby adjusting the angle between the welding wire gun and the flux tube, realizing automated production and reducing labor costs. Attached Figure Description

[0027] Figure 1 This is a view of the steel plate of the submerged arc welding structure of the thick plate box of this utility model, perpendicular to the welding direction;

[0028] Figure 2 This is a view of the front welding wire gun of the submerged arc welding structure of the thick plate box of this utility model, perpendicular to the welding direction;

[0029] Figure 3 This is a view of the rear welding wire gun perpendicular to the welding direction of the submerged arc welding structure of the thick plate box of this utility model;

[0030] Figure 4 This is a view of the front and rear welding wire guns of the submerged arc welding structure of the thick plate box of this utility model, with the welding direction parallel to the welding direction;

[0031] Figure 5 This is a schematic diagram of the structure of the submerged arc welding device for thick plate boxes according to this utility model. Figure 1 ;

[0032] Figure 6 This is a schematic diagram of the structure of the submerged arc welding device for thick plate boxes according to this utility model. Figure 2 ;

[0033] Figure 7 This is a front view of the device for submerged arc welding of thick plate boxes according to this utility model;

[0034] Figure 8 This utility model describes the working state of the submerged arc welding device for thick plate box bodies. Figure 1 ;

[0035] Figure 9 This utility model describes the working state of the submerged arc welding device for thick plate box bodies. Figure 2 ;

[0036] Figure 10 This utility model describes the working state of the submerged arc welding device for thick plate box bodies. Figure 3 ;

[0037] Figure 11 for Figure 1 Enlarged view of the structure at point A in the middle. Detailed Implementation

[0038] Please refer to the instruction manual appendix. Figure 1 To be continued Figure 11 As shown, this utility model relates to a submerged arc welding structure and device for thick plate box bodies, as follows: Figures 1 to 4 The aforementioned submerged arc welding structure for a thick plate box includes a first steel plate 6 and a second steel plate 7. A bevel is formed between the first steel plate 6 and the second steel plate 7. The first steel plate 6 is not beveled, while the second steel plate has a bevel on one side. The first steel plate 6 is vertically mounted on the second steel plate 7. A backing plate 10 is installed at the connection between the first steel plate 6 and the second steel plate 7. The backing plate 10 is located on the side of the second steel plate 7 away from the bevel 8. The structure also includes a welding torch device 5, which includes a front welding torch device and a rear welding torch device. The front welding torch device includes a front welding wire gun 511, and the rear welding torch device includes a rear welding wire gun 512. The working point of the front welding wire gun 511 is located at the bevel. Within angle a, the angle of inclination of the front welding wire gun 511 is consistent with slope a. The working point of the rear welding wire gun 512 is located at the edge of slope a, and the angle of inclination of the rear welding wire gun 512 is consistent with slope a. The rear welding wire gun 512 and the front welding wire gun 511 are located on the same plane, and there is an angle between them. Specifically, during operation, the front welding wire gun 511 and the rear welding wire gun 512 work on the same plane, and the working plane is always located on the center line of the groove 8. The front welding wire gun 511 is perpendicular to the welding direction c, and the rear welding wire gun 512 is tilted backward at a suitable angle c. Welding is performed using a large-diameter 6.4mm submerged arc welding wire, which has high welding efficiency and can significantly reduce the critical time of the box welding process. One submerged arc welding pass fills the weld seam, achieving the requirement of full penetration weld for the box assembly.

[0039] like Figures 5 to 11The device for submerged arc welding of thick plate box bodies includes a frame 1, a first position adjustment device 2 and a second position adjustment device 3 slidably connected to the frame 1 along the welding direction c. The first position adjustment device 2 is equipped with a slope detection device 4, and the second position adjustment device 3 is equipped with a welding torch device 5. When steel plate 6 and steel plate 7 are transported into the frame 1, the inclined surface of steel plate 6 and the inclined surface of steel plate 7 form a bevel 8. The slope detection device 4 and the welding torch device 5 are located directly above the bevel 8. The first position adjustment device 2 is used to move the slope detection device 4 from directly above the bevel 8 to contact the bevel 8. The slope detection device 4 can provide data on the slope a of the bevel 8. When the data is transmitted to the angle adjustment device 9, the angle adjustment device 9 can adjust the position of the welding torch device 5 until the position of the welding torch device 5 matches the bevel 8. The second position adjustment device 3 is used to move the welding torch device 5 from directly above the bevel 8 to the bevel 8. The welding torch device 5 is used to perform submerged arc welding on the bevel 8. This achieves automation by adjusting the position of the welding torch device 5 according to different types of slope 'a' to adapt to different types of bevels '8,' reducing manual adjustment of the welding torch device 5. In this embodiment, the structure of the welding torch device 5 can be... Figure 1 The structure of the front welding gun assembly and the rear welding gun assembly shown in the figure can also be... Figures 5 to 11 The single welding gun structure consists of flux tube 51 and welding wire gun 52.

[0040] The slope detection device 4 includes a fixed plate 41 fixedly connected to the position adjustment device 2. A gear 42 is rotatably connected to the fixed plate 41. The axis of the gear 42 is located directly above the slope 8. Detector rods 43 are meshed on both sides of the gear 42. The two detector rods 43 are located above the steel plate 6 and the steel plate 7, respectively. Two sliding grooves 44 are provided on the fixed plate 41, located on both sides of the gear 42. The detector rods 43 are slidably connected to the fixed plate 41, and the sliding direction of the detector rods 43 is always consistent with the direction directly above the slope 8. The two detector rods 43 are close to... The ends of the two probe rods 43 near the bevel 8 are located on the inclined surfaces of steel plate 6 and steel plate 7, respectively. This ensures that the distance between the two probe rods 43 near the bevel 8 is small, allowing both probe rods 43 to enter the bevel 8 simultaneously. The distance between the probe rods 43 away from the bevel 8 is large, allowing the space between the two probe rods 43 to accommodate a gear 42. In this embodiment, the probe rod 43 is composed of an L-shaped rod 431 and a cylindrical head 432. The L-shaped rod 431 has teeth that mesh with the gear 42, and the cylindrical head 432 is located at the bottom of the L-shaped rod 431, allowing the cylindrical head 432 to enter the bevel 8. An angle sensor is provided on the fixing plate 41, which transmits the rotation angle of the gear 42 to the angle adjustment device 9.

[0041] The angle adjustment device 9 includes an arc-shaped plate 91 with an arc-shaped groove 92. The center of the arc-shaped plate 91 is located directly above the bevel 8. One end of the welding torch device 5 moves within the arc-shaped groove 92 via a drive mechanism. The working ends of the flux tube 51 and the welding wire gun 52 of the welding torch device 5 are located at the center of the arc-shaped plate 91. The drive mechanism can adjust the position of one end of the welding torch device 5 based on data from the angle sensor. Since the working end of the welding wire gun 52 is always located at the center of the arc-shaped plate 91, adjusting the welding torch... The position of one end of device 5 can change the working angle of the welding wire gun 52, thereby enabling the welding wire gun 52 to cooperate with different types of slope a. The driving components include a first driving cylinder 53 and a second driving cylinder 54. A first connecting rod 531 is rotatably connected to the working end of the first driving cylinder 53, and a second connecting rod 532 is rotatably connected to the working end of the second driving cylinder 54. The flux tube 51 and the welding wire gun 52 are slidably connected to the arc-shaped groove 92 via an arc-shaped block 55. The two ends of the arc-shaped block 55 are connected to the first connecting rod 531 and the second connecting rod 532. The slope a detected by the angle sensor is fed back to the first driving cylinder 53 and the second driving cylinder 54. The first driving cylinder 53 and the second driving cylinder 54 can push the arc-shaped block 55 so that the angle of the welding wire gun 52 is consistent with the slope a.

[0042] Position adjustment device 1 2 includes cylinder 1, one end of cylinder 1 is mounted on frame 1, and the other end of cylinder 1 is mounted with slope detection device 4. Cylinder 1 is located directly above the bevel 8, and the output end of cylinder 1 faces the bevel 8. Cylinder 1 is used to transport the probe rod 43 of slope detection device 4 to the inclined surface of steel plate. Position adjustment device 2 3 includes cylinder 2, one end of cylinder 2 is mounted on frame 1, and the other end of cylinder 2 is mounted with arc plate 91. Cylinder 2 is located directly above the bevel 8, and the output end of cylinder 2 faces the bevel 8. Cylinder 2 is used to transport the center of arc plate 91 to the bevel.

[0043] The working principle of the submerged arc welding structure and device for thick plate box body of this utility model is as follows:

[0044] Steel plate 6 and steel plate 7 are transported into frame 1. The bevel 8 between steel plate 6 and steel plate 7 is located directly below the probe rod 43, welding wire gun 52, and flux tube 51. Cylinder 1 is activated, pushing the fixed plate 41, the linkage gear 42, and the two probe rods 43 towards the bevel 8. Figure 5 As described above, one end of the probe rod 43 contacts the steel plate 6, and the fixing plate 41 continues to descend, as... Figure 6The gear 42 is rotated until the other probe 43 contacts the steel plate 7. At this time, the rotation angle of the gear 42 can provide feedback on the slope 'a' between the two steel plates. The feedback slope 'a' is transmitted to the drive cylinder 53 and the drive cylinder 54. The drive cylinder 53 and the drive cylinder 54 push the arc block 55, causing the arc block 55 to slide within the arc groove 92, thereby changing the angle between the welding wire gun 52 and the flux tube 51, so that the welding wire gun 52 and the flux tube 51 can be aligned with the center of the bevel 8. The cylinder 2 is activated, lowering the welding wire gun 52 and the flux tube 51 until the working ends of the welding wire gun 52 and the flux tube 51 are located at the break. The cylinder 2 moves in the welding direction c, and the welding wire gun 52 and the flux tube 51 move in the welding direction c. The flux tube 51 is used to fill the bevel 8 with flux, and the welding wire gun 52 is used to weld the flux to the steel plate, thereby completing the welding of the irregular bevel.

[0045] The above-described specific embodiments are merely preferred embodiments of this invention and are not intended to limit this invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A submerged arc welding structure for a thick plate box body, comprising a steel plate one and a steel plate two, wherein a bevel is formed between the steel plate one and the steel plate two, the steel plate one is not beveled, the steel plate two has a bevel on one side, the steel plate one is vertically mounted on the steel plate two, and a backing plate is installed at the connection between the steel plate one and the steel plate two, the backing plate being located on the side of the steel plate two away from the bevel, characterized in that, It also includes a welding torch device, which includes a front welding torch device and a rear welding torch device. The front welding torch device includes a front welding wire gun, and the rear welding torch device includes a rear welding wire gun. The working point of the front welding wire gun is located within the slope, and the tilt angle of the front welding wire gun is consistent with the slope. The working point of the rear welding wire gun is located at the edge of the slope, and the tilt angle of the rear welding wire gun is consistent with the slope. The rear welding wire gun and the front welding wire gun are located on the same plane, and there is an included angle between the rear welding wire gun and the front welding wire gun.

2. A submerged arc welding device for thick plate box bodies, employing the submerged arc welding structure for thick plate box bodies as described in claim 1, characterized in that: It also includes a frame, on which a slope detection device and a welding torch are sequentially mounted. The slope detection device and the welding torch are located directly above the bevel. A position adjustment device 1 is installed between the slope detection device and the frame, and a position adjustment device 2 and an angle adjustment device are installed between the welding torch and the frame. The position adjustment device 1 is used to move the slope detection device from directly above the bevel to contact the bevel. The slope detection device can provide feedback on the angle data of the bevel. When the data is transmitted to the angle adjustment device, the angle adjustment device can adjust the position of the welding torch until it matches the position of the bevel. The position adjustment device 2 is used to move the welding torch from directly above the bevel to the bevel. The welding torch is used for submerged arc welding of the bevel. The position adjustment device 1 and the position adjustment device 2 are slidably connected to the frame and can move along the welding direction.

3. The submerged arc welding device for thick plate box bodies according to claim 2, characterized in that: The slope detection device includes a fixed plate fixedly connected to a position adjustment device, a gear rotatably connected to the fixed plate, the axis of the gear being directly above the slope, and detection rods meshing on both sides of the gear, with the two detection rods located above steel plate one and steel plate two respectively.

4. The submerged arc welding device for thick plate box bodies according to claim 2, characterized in that: Two grooves are provided on the fixed plate, located on both sides of the gear, and the probe rod is slidably connected to the fixed plate.

5. The submerged arc welding device for thick plate box bodies according to claim 2, characterized in that: The ends of the two probes near the bevel are located on the inclined surfaces of steel plate one and steel plate two, respectively.

6. The submerged arc welding device for thick plate box bodies according to claim 2, characterized in that: An angle sensor is installed on the fixed plate, which can transmit the rotation angle of the gear to the angle adjustment device.

7. The submerged arc welding device for thick plate box bodies according to claim 2, characterized in that: The angle adjustment device includes an arc plate with an arc groove. The center of the arc plate is located directly above the bevel. One end of the welding gun device moves within the arc groove via a drive component. The working end of the flux tube and the working end of the welding wire gun of the welding gun device are located at the center of the arc plate.

8. The submerged arc welding device for thick plate box bodies according to claim 2, characterized in that: The driving component includes a driving cylinder one and a driving cylinder two. A connecting rod one is rotatably connected to the working end of the driving cylinder one, and a connecting rod two is rotatably connected to the working end of the driving cylinder two. The flux tube and the welding wire gun are slidably connected to the arc groove through an arc block. The two ends of the arc block are connected to the connecting rod one and the connecting rod two.

9. The submerged arc welding device for thick plate box bodies according to claim 2, characterized in that: The position adjustment device includes a cylinder, one end of which is mounted on the frame and the other end of which is mounted on a slope detection device. The cylinder is located directly above the slope and the output end of the cylinder faces the slope.

10. The submerged arc welding device for thick plate box bodies according to claim 2, characterized in that: The position adjustment device two includes a cylinder two. One end of the cylinder two is mounted on the frame, and the other end of the cylinder two is mounted on an arc plate. The cylinder two is located directly above the bevel, and the output end of the cylinder two faces the bevel.

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