Submerged-arc welding equipment

Abstract

The utility model provides submerged-arc welding equipment. The submerged-arc welding equipment comprises a bearing table, a rotating mechanism, an adjusting mechanism and a welding mechanism, the slewing mechanism is arranged on the bearing table; the rotating mechanism comprises a rotating shaft; the rotating shaft extends along a first direction; the adjusting mechanism is provided with a first end and a second end which are opposite, the first end is connected to the free end of the rotating shaft, and the second end can move relative to the first end; the welding mechanism comprises a rotating part and a welding gun, the rotating part is rotatably connected to the second end, and the rotating part can rotate around the rotating axis of the rotating part; the welding gun is connected to the rotating piece and rotates along with the rotating piece. When the curved surface structure and the connecting pipe are welded in a submerged-arc welding mode, the rotating mechanism is moved so that the connecting pipe can be located on the side, provided with the adjusting mechanism, of the rotating shaft. And through rotation of the rotating shaft, movement of the adjusting mechanism and rotation of the rotating part, the welding end of the welding gun moves along the welding gap, so that the curved surface structure and the connecting pipe are stably and efficiently welded, and the production efficiency of products is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field especially relates to a submerged-arc welding equipment. BACKGROUND

[0002] Submerged-arc welding is a kind of welding method that arc burns under the welding agent layer.When welding, arc is generated between welding wire and workpiece and is completely covered by flux, avoiding arc light exposure and protecting molten pool from air pollution.

[0003] In the related art, when welding is needed between the curved surface structure and the non-radial connecting pipe on the curved surface structure, the curved surface structure and the port circumferential edge of the connecting pipe are first abutted to make the radial direction of the curved surface structure intersect with the axial direction of the connecting pipe. Then the curved surface structure and the connecting pipe are welded by manual control of the welding gun to make the welding bead between the curved surface structure and the connecting pipe be a saddle-shaped structure.

[0004] However, the welding process of the curved surface structure and the non-radial connecting pipe on the curved surface structure needs to be manually welded, which is low in welding efficiency and product production efficiency. INVENTION CONTENTS

[0005] The purpose of the present application is to provide a submerged-arc welding equipment capable of automatically welding the curved surface structure and the non-radial connecting pipe on the curved surface structure to improve the production efficiency of products.

[0006] To solve the above technical problems, the present application adopts the following technical solutions:

[0007] According to one aspect of the present application, the present application provides a submerged-arc welding equipment, there is a intersection line between the curved surface structure and the non-radial connecting pipe on the curved surface structure, and the welding equipment is used for welding the welding gap where the intersection line is located; the welding equipment comprises a bearing table, a rotating mechanism, an adjusting mechanism and a welding mechanism; the rotating mechanism is arranged on the bearing table; the rotating mechanism comprises a rotating shaft and a rotating drive member for driving the rotating shaft to rotate; the rotating shaft extends along a first direction; the adjusting mechanism has opposite first and second ends, the first end is connected to the free end of the rotating shaft, and the second end can move relative to the first end along a first direction, a second direction and a third direction, any two of the first direction, the second direction and the third direction are perpendicular to each other; the welding mechanism comprises a rotating member and a welding gun, the rotating member is rotatably connected to the second end, the rotating axis of the rotating member is perpendicular to the first direction, and the rotating member can rotate around its rotating axis; the welding gun is connected to the rotating member and can rotate with the rotating member; when the welding mechanism welds the curved surface structure and the non-radial connecting pipe on the curved surface structure, the axial direction of the connecting pipe extends along the first direction and is located on one side of the rotating shaft where the adjusting mechanism is arranged.

[0008] In some embodiments, the welding mechanism further includes an angle adjustment component connected between the rotating member and the welding torch. The angle adjustment component can move the welding end of the welding torch closer to or away from the rotating member. The angle adjustment component can adjust the tilt angle between the welding torch and the intersection welding point so that the welding end of the welding torch can be inserted into the welding gap.

[0009] In some embodiments, the deflection adjustment assembly includes a fixed base and an arc-shaped plate that are slidably connected. The fixed base is fixedly connected to the rotating member. The arc-shaped plate is slidable relative to the fixed base along its own extension direction and is fixedly connected to the welding torch.

[0010] In some embodiments, the arc-shaped plate has an arc-shaped groove on the side facing the fixed base, the arc-shaped groove extends along the extension direction of the arc-shaped plate, and the arc-shaped plate is slidably sleeved on the fixed base through the arc-shaped groove;

[0011] The deflection angle adjustment assembly further includes a helical gear, a helical motor, and a rack. The helical gear is rotatably mounted on the fixed base. The helical motor is mounted on the fixed base and is connected to the helical gear in a transmission manner. The rack is mounted on the arc-shaped plate and extends along the extension direction of the arc-shaped plate. The rack meshes with the helical gear so that the helical gear can drive the arc-shaped plate to slide relative to the fixed base through the rack.

[0012] In some embodiments, the welding torch extends radially along the circle containing the arcuate plate.

[0013] In some embodiments, the welding end of the welding torch is located at the center of the circle containing the arc-shaped plate.

[0014] In some embodiments, the welding equipment includes a moving mechanism, the moving mechanism comprising: a column extending along a first direction and disposed on the support platform; a slide block slidably connected to the column along the first direction to drive the rotary mechanism to move along the first direction; a moving arm extending along a third direction and slidably disposed on the slide block along the third direction, the moving arm being able to drive the rotary mechanism to move along the third direction; and an adjusting fixing plate extending along a second direction and fixedly disposed at one end of the moving arm; the rotary mechanism being slidably connected to the adjusting fixing plate along the second direction.

[0015] In some embodiments, the lower end of the column is further provided with a rotating platform, the rotating platform being movably connected to the support platform along a second direction, and the column being rotatably connected to the rotating platform about its own axis.

[0016] In some embodiments, the adjustment mechanism includes an adjustment seat, a first movable member, a second movable member, and a third movable member. The adjustment seat is fixedly connected to the rotary shaft. The first movable member extends along a second direction and is movably connected to the adjustment seat along the second direction. The second movable member extends along a third direction and is movably connected to the first movable member along the third direction. The third movable member extends along a first direction and is movably connected to the second movable member along the first direction.

[0017] In some embodiments, the welding equipment further includes a controller electrically connected to the rotary mechanism, the adjusting mechanism, and the welding mechanism.

[0018] As can be seen from the above technical solution, this application has at least the following advantages and positive effects:

[0019] In this application, when submerged arc welding is performed between a curved structure and a non-radial nozzle on the curved structure, the rotary mechanism is moved so that the rotary shaft is close to the nozzle, placing the nozzle on the side where the adjustment mechanism is located on the rotary shaft. The welding mechanism is then moved via the adjustment mechanism to the periphery of the nozzle. A rotating component rotates, moving the welding torch to the weld seam between the curved structure and the nozzle. The rotary mechanism drives the rotary shaft to rotate, the adjustment mechanism adjusts the welding torch, and the rotating component rotates, causing the welding end of the welding torch to move along the weld seam, thereby achieving stable and efficient welding of the curved structure and the nozzle, improving product production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the submerged arc welding equipment and the workpiece to be welded according to this utility model.

[0021] Figure 2 This is a structural schematic diagram of the submerged arc welding equipment of this utility model.

[0022] Figure 3 This is a schematic diagram of the rotating mechanism, adjusting mechanism, welding mechanism, and workpiece to be welded of the welding equipment of this utility model.

[0023] Figure 4 This is a structural schematic diagram of the rotary mechanism, adjusting mechanism, and welding mechanism of the welding equipment of this utility model.

[0024] Figure 5 This is a schematic diagram of the welding mechanism of the welding equipment of this utility model.

[0025] The reference numerals in the attached drawings are explained as follows: 11. Curved surface structure; 12. Connector; 20. Welding equipment; 300. Support platform; 310. Slide rail; 400. Moving mechanism; 410. Rotating platform; 420. Column; 430. Slide seat; 440. Moving arm; 450. Adjusting and fixing plate; 500. Rotation mechanism; 510. Protective shell; 520. Rotation drive component; 530. Rotation shaft; 600. Adjustment mechanism; 610. First moving component; 620. Second moving component; 630. Third moving component; 700. Welding mechanism; 710. Rotating component; 720. Angle adjustment assembly; 721. Fixing seat; 722. Arc plate; 723. Arc groove; 730. Welding torch; 810. Wire feed wheel; 820. Controller. Detailed Implementation

[0026] Typical embodiments embodying the features and advantages of this application will be described in detail in the following description. It should be understood that this application can have various variations in different embodiments, all of which do not depart from the scope of this application, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this application.

[0027] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In related technologies, the workpiece to be welded includes a curved surface structure 11 and a non-radial nozzle 12 disposed relative to the curved surface structure 11. The curved surface structure 11 needs to be connected to the non-radial nozzle 12 relative to the curved surface structure 11 to fix the nozzle 12 onto the curved surface structure 11. There is an intersection line between the curved surface structure 11 and the non-radial nozzle 12 relative to the curved surface structure 11, which is the shape of the weld gap between the two.

[0029] In some embodiments, the curved structure 11 can be an arc plate 722 or a head.

[0030] In some embodiments, the connector 12 may be located on the protruding side of the curved structure 11 or on the recessed side of the curved structure 11.

[0031] In some embodiments, the intersection line is saddle-shaped.

[0032] Figure 1 This is a schematic diagram of the submerged arc welding equipment and the workpiece to be welded according to this utility model.

[0033] See Figure 1 For ease of understanding and description, Figure 1 The direction of the Z-axis is the first direction described below; Figure 1 The direction of the Y-axis is the second direction described below; Figure 1 The direction of the X-axis is the third direction mentioned below.

[0034] Figure 2 This is a structural schematic diagram of the submerged arc welding equipment of this utility model. Figure 3 This is a schematic diagram of the rotating mechanism, adjusting mechanism, welding mechanism, and workpiece to be welded of the welding equipment of this utility model. Figure 4 This is a structural schematic diagram of the rotary mechanism, adjusting mechanism, and welding mechanism of the welding equipment of this utility model. Figure 5 This is a schematic diagram of the welding mechanism of the welding equipment of this utility model.

[0035] See Figures 1 to 5 This application provides a submerged arc welding equipment 20 for welding the weld gap between a curved surface structure 11 and a non-radial nozzle 12 on the curved surface structure 11, where the weld seam is located. The submerged arc welding equipment 20 (hereinafter referred to as welding equipment 20) includes a support platform 300, a rotation mechanism 500, an adjustment mechanism 600, and a welding mechanism 700. The rotation mechanism 500 is disposed on the support platform 300. The rotation mechanism 500 includes a rotation shaft 530 and a rotation drive member 520 for driving the rotation shaft 530 to rotate. The rotation shaft 530 extends along a first direction. The adjustment mechanism 600 has opposing first and second ends. The first end is connected to the free end of the rotation shaft 530, and the second end is movable relative to the first end along a first direction, a second direction, and a third direction. Any two of the first direction, the second direction, and the third direction are perpendicular to each other. The welding mechanism 700 includes a rotating member 710 and a welding torch 730. The rotating member 710 is rotatably connected to the second end, and its rotation axis is perpendicular to the first direction. The rotating member 710 can rotate about its own rotation axis. The welding torch 730 is connected to the rotating member 710 and can rotate with the rotating member 710. When the welding mechanism 700 welds the curved surface structure 11 and the non-radial nozzle 12 on the curved surface structure 11, the axial direction of the nozzle 12 extends along the first direction.

[0036] When welding equipment 20 welds the curved surface structure 11 and the non-radial nozzle 12 on the curved surface structure 11, the rotary mechanism 500 and / or the workpiece to be welded are selectively moved so that the nozzle 12 is located on the side where the adjustment mechanism 600 is set on the rotary shaft 530. The welding mechanism 700 is then moved by the adjustment mechanism 600 so that it is closer to the periphery of the nozzle 12. The rotating component 710 rotates to move the welding torch 730 to the welding seam between the curved surface structure 11 and the nozzle 12. The rotary mechanism 500 drives the rotary shaft 530 to rotate, thereby rotating the adjustment mechanism 600 and the welding mechanism 700. When the adjustment mechanism 600 and the welding mechanism 700 rotate, the adjustment mechanism 600 and the rotating component 710 can adjust the position of the welding end of the welding torch 730 so that the welding end of the welding torch 730 moves along the welding seam, thereby stably and efficiently welding the curved surface structure 11 and the nozzle 12, improving product production efficiency.

[0037] See Figures 1 to 5 In this embodiment, the support platform 300 is used to support and limit the rotation mechanism 500 to ensure the stability and reliability of the welding equipment 20.

[0038] A slide rail 310 can be provided on the support platform 300. The slide rail 310 can be used to adjust the position of the rotary mechanism 500, the adjustment mechanism 600 and the welding mechanism 700 relative to the workpiece to be welded, so that the welding mechanism 700 can quickly approach the workpiece to be welded and improve the welding efficiency of the welding equipment 20.

[0039] In some embodiments, the support platform 300 extends along a second direction. The slide rail 310 extends along the second direction.

[0040] In other embodiments, there are two slide rails 310. Both slide rails 310 extend along the second direction and are spaced apart along the third direction to facilitate the movement of the rotary mechanism 500, the adjustment mechanism 600, and the welding mechanism 700.

[0041] In some embodiments, the support platform 300 can be a mobile trolley, so that the welding equipment 20 can be moved arbitrarily, thereby improving the transportation efficiency of the welding equipment 20.

[0042] See Figures 1 to 2 In this embodiment, the welding equipment 20 further includes a moving mechanism 400. The moving mechanism 400 includes a column 420, a slide 430, and a moving arm 440. The column 420 extends along a first direction and is disposed on the support platform 300. The slide 430 is slidably connected to the column 420 along the first direction so as to drive the rotary mechanism 500 to move along the first direction. The moving arm 440 extends along a third direction and is slidably disposed on the slide 430 along the third direction, and the moving arm 440 can drive the rotary mechanism 500 to move along the third direction.

[0043] When the operator uses the welding equipment 20, the workpiece to be welded can be moved to the periphery of the support platform 300. Then, by moving the slide block 430 in the first direction and the moving arm 440 in the third direction, the rotary mechanism 500 is brought closer to the workpiece to be welded, and the connecting pipe 12 is located on the side of the rotary shaft 530 where the adjustment mechanism 600 is set, so that the subsequent adjustment mechanism 600 and welding mechanism 700 can rotate around the rotary shaft 530.

[0044] See Figures 1 to 2 In this embodiment, the column 420 is movably mounted on the support platform 300 so that the moving mechanism 400 can move closer to or further away from the workpiece to be welded, thereby improving the utilization efficiency of the welding equipment 20.

[0045] In some embodiments, the column 420 is slidably disposed on the slide rail 310 so that the column 420 can slide on the slide rail 310 in a second direction, thereby facilitating the movement of the workpiece to be welded in and out.

[0046] The column 420 is slidably mounted on the slide rail 310, and the position of the rotary mechanism 500 and the like can be adjusted in the second direction to facilitate the welding equipment 20 to weld workpieces of various sizes, thereby increasing the processing range, improving versatility, and reducing welding costs.

[0047] In some embodiments, the moving mechanism 400 may further include a rotating platform 410. The rotating platform 410 is disposed at the lower end of the column 420 and is movably connected to the support platform 300 along a second direction. The column 420 is rotatably connected to the rotating platform 410 about its own axis.

[0048] Both sides of the support platform 300 can hold workpieces to be welded. After the workpiece on one side of the support platform 300 is welded, the column 420 can rotate relative to the rotating platform 410 around its own axis to move the rotary mechanism 500, the adjusting mechanism 600 and the welding mechanism 700 to the other side of the support platform 300 for welding the workpiece on the other side, thereby effectively improving the working efficiency of the welding equipment 20 and reducing the welding cost.

[0049] In other embodiments, the rotating platform 410 is movably mounted on the slide rail 310. On the one hand, this allows the rotating platform 410 to drive the moving mechanism 400 to slide on the slide rail 310, so that the welding equipment 20 can adapt to workpieces of various sizes and move to the intersection of the corresponding workpieces. On the other hand, this can effectively ensure the stability of the welding equipment 20 and prevent the moving arm 440 from interfering with the rotation mechanism 500, the adjustment mechanism 600, and the welding machine mechanism.

[0050] In some embodiments, a first drive motor (not shown), an adjusting gear (not shown), and an adjusting rack (not shown) may be provided between the rotating platform 410 and the support platform 300. The first drive motor is disposed on the rotating platform 410, and the adjusting gear is disposed on the first drive motor so as to be able to rotate under the drive of the motor. The adjusting rack is disposed on the support platform 300 and extends along a second direction. The adjusting gear meshes with the adjusting rack. The first drive motor can drive the adjusting gear to rotate, so that the adjusting gear moves on the adjusting rack, thereby causing the rotating platform 410 to move relative to the support platform 300.

[0051] In other embodiments, the rotating platform 410 and the support platform 300 can also be moved relative to each other by means of transmission such as screw drive, chain drive, pneumatic drive, or hydraulic drive.

[0052] In some embodiments, a column 420 rotation motor (not shown in the figure) is provided inside the column 420. The column 420 rotation motor can drive the column 420 to rotate relative to the rotating platform 410 about its own axis.

[0053] See Figures 1 to 2 In this embodiment, the slide 430 is slidably mounted on the column 420.

[0054] In some embodiments, the slide 430 is sleeved on the column 420, thereby ensuring the connection strength and reliability between the slide 430 and the column 420.

[0055] The slide block 430 is connected to the rotary mechanism 500. The slide block 430 slides along the first direction, which can drive the rotary mechanism 500 to move, thereby adjusting the position of the rotary mechanism 500 in the first direction, making it easier for the rotary mechanism 500 to approach the workpiece to be welded, and improving the working efficiency of the welding equipment 20.

[0056] In some embodiments, a plurality of stabilizing bars may be provided around the periphery of the column 420. The plurality of stabilizing bars extend along a first direction. The stabilizing bars are connected to the column 420 so as to rotate with the column 420. The slide 430 is sleeved on the stabilizing bars to ensure the stability, reliability and safety of the slide 430 when sliding.

[0057] In some embodiments, the drive structure between the slide 430 and the column 420 can refer to the drive structure between the rotating platform 410 and the support platform 300 described above. That is, a second drive motor (not shown in the figure), an adjusting gear, an adjusting rack, etc., can be provided between the slide 430 and the column 420. The second drive motor is provided on the slide 430, and the adjusting rack is provided on the column 420.

[0058] In other embodiments, the relative movement between the slide 430 and the column 420 can be achieved through transmission methods such as screw drive, chain drive, pneumatic drive, and hydraulic drive.

[0059] See Figures 1 to 2 In this embodiment, the movable arm 440 extends along a third direction. The movable arm 440 is movably mounted on the slide block 430 along the third direction. The movable arm 440 can be connected to the rotary mechanism 500, so that when the movable arm 440 moves along the third direction, the position of the rotary mechanism 500 in the third direction can be adjusted, making it easier for the rotary mechanism 500 to approach the workpiece to be welded and improving the working efficiency of the welding equipment 20.

[0060] In some embodiments, the drive structure between the movable arm 440 and the slide 430 can refer to the drive structure between the rotating platform 410 and the support platform 300 described above. That is, a third drive motor (not shown in the figure), an adjusting gear, an adjusting rack, etc., can be provided between the movable arm 440 and the slide 430. The third drive motor is provided on the slide 430 / or the slide, and the adjusting rack is provided on the movable arm 440 or the slide 430, so that the movable arm 440 and the slide 430 can move relative to each other.

[0061] In other embodiments, the movable arm 440 and the slide 430 can move relative to each other through a transmission method such as screw drive, chain drive, pneumatic drive, or hydraulic drive.

[0062] See Figures 1 to 2 In this embodiment, the moving mechanism 400 may further include an adjusting fixed plate 450. The adjusting fixed plate 450 extends along the second direction and is fixedly disposed at one end of the moving arm 440 so as to move with the moving arm 440. The rotating mechanism 500 is slidably connected to the adjusting fixed plate 450 along the second direction so as to adjust the position of the rotating mechanism 500 relative to the second direction, thereby facilitating the rotating mechanism 500 to approach or move away from the workpiece to be welded and improving work efficiency.

[0063] In some embodiments, the adjusting plate 450 can be fixedly connected to the movable arm 440 to improve the reliability and safety between the adjusting plate 450 and the movable arm 440.

[0064] In some embodiments, the adjusting fixed plate 450 is movably connected to the movable arm 440 so that the adjusting fixed plate 450 can move relative to the movable arm 440 in a second direction, thereby adjusting the relative position of the rotary mechanism 500 in the second direction, facilitating multi-level adjustment of the position of the rotary mechanism 500, improving the applicability of the welding equipment 20, and enhancing the practicality of the welding equipment 20.

[0065] See Figures 1 to 2 In this embodiment, the drive structure between the adjusting fixed plate 450 and the rotating mechanism 500 can refer to the drive structure between the rotating platform 410 and the support platform 300 described above. That is, the adjusting fixed plate 450 and the rotating mechanism 500 can be equipped with a third drive motor, an adjusting gear, an adjusting rack, etc. The third drive motor is mounted on the slide 430 / or the slide, and the adjusting rack is mounted on the moving arm 440 or the slide 430, so that the moving arm 440 and the slide 430 can move relative to each other.

[0066] In other embodiments, the movable arm 440 and the slide 430 can move relative to each other through a transmission method such as screw drive, chain drive, pneumatic drive, or hydraulic drive.

[0067] See Figures 1 to 4 In this embodiment, the rotary mechanism 500 is movably connected to the adjusting fixed plate 450, so that the rotary mechanism 500 can move with the adjusting fixed plate 450 along the first direction, the second direction and the third direction, and also can move relative to the adjusting fixed plate 450 along the second direction, thereby enabling the rotary mechanism 500 to move closer to or further away from the workpiece to be welded, improving the adjustment accuracy and adjustment freedom of the welding equipment 20.

[0068] See Figures 1 to 4 In this embodiment, the rotary mechanism 500 may include a protective housing 510, a rotary drive 520, and a rotary shaft 530. The protective housing 510 is movably connected to the adjusting and fixing plate 450. The rotary drive 520 is disposed on the protective housing 510. The rotary shaft 530 is rotatably disposed on the protective housing 510 and is drively connected to the rotary drive 520. The rotary shaft 530 extends along a first direction. The rotary drive 520 can drive the rotary shaft 530 to rotate about its own rotation axis, so that the welding mechanism 700 can rotate along the saddle-shaped weld seam.

[0069] Before welding the workpiece to be welded, the rotating platform 410, column 420, slide 430, moving arm 440 and protective shell 510 can be adjusted so that the rotating shaft 530 can be close to the workpiece to be welded, so that the rotating mechanism 500 can drive the welding mechanism 700 to rotate, thereby improving the welding efficiency and welding accuracy of the welding equipment 20.

[0070] In some embodiments, the rotary drive 520 may be disposed within the protective housing 510.

[0071] In some embodiments, the rotation axis of the rotary shaft 530 is coaxial with the axis of the connecting pipe 12 so that the rotary shaft 530 can drive the welding mechanism 700 to rotate, thereby ensuring the rotation accuracy of the rotary mechanism 500 and facilitating the rotary processing of the welding mechanism 700.

[0072] See Figures 1 to 4 In this embodiment, the welding equipment 20 includes an adjustment mechanism 600. The adjustment mechanism 600 is disposed at the free end of the rotary shaft 530 so as to follow the rotary shaft 530 to move along a first direction, a second direction, and a third direction.

[0073] The adjustment mechanism 600 includes an adjustment seat (not shown), a first moving member 610, a second moving member 620, and a third moving member 630. The adjustment seat is fixedly connected to the rotary shaft 530 to rotate with the rotary shaft 530. The first moving member 610 extends along a second direction and is movably connected to the adjustment seat along the second direction. The second moving member 620 extends along a third direction and is movably connected to the first moving member 610 along the third direction. The third moving member 630 extends along a first direction and is movably connected to the second moving member 620 along the first direction.

[0074] Before welding with welding equipment 20, the first moving part 610, the second moving part 620, and the third moving part 630 are moved to bring the welding mechanism 700 closer to the periphery of the nozzle 12, and the welding end of the welding torch 730 is positioned at the weld seam. When welding with welding equipment 20, the rotary shaft 530 rotates, and the first moving part 610, the second moving part 620, and the third moving part 630 can all move, so that the welding end of the welding torch 730 moves along the saddle-shaped weld seam to weld the curved surface structure 11 and the nozzle 12, ensuring the continuity, integrity, reliability, and safety of the weld.

[0075] In some embodiments, the adjusting seat is the first end of the adjusting mechanism 600, and the end of the third moving member 630 near the welded member is the second end of the adjusting mechanism 600.

[0076] In some embodiments, the transmission structure between the first moving member 610 and the adjusting seat can be a first moving motor and a screw. The first moving motor is disposed at the end of the first moving member 610. A screw is disposed on the first moving member 610, the screw extending in a second direction, and the screw is drivenly connected to the first moving motor so that the first moving motor can drive the screw to rotate about its own rotation axis. The adjusting seat is threadedly connected to the screw. When the first moving motor drives the screw to rotate, the screw rotates within the adjusting seat, thereby causing the first moving member 610 to move relative to the adjusting seat along the extending direction of the first moving member 610.

[0077] In other embodiments, the first moving member 610 and the adjusting seat can move relative to each other through transmission methods such as gear transmission, chain transmission, pneumatic transmission, and hydraulic transmission.

[0078] In some embodiments, a support structure (not shown in the figure) is also provided between the first moving member 610 and the adjusting seat. The support structure may be disposed on the adjusting seat or the rotating shaft 530, and a portion of the support structure may extend into the first moving member 610 to clamp or limit the first moving member 610. Thus, when the first moving member 610 moves relative to the adjusting seat, the support structure can support the first moving member 610, ensuring the safety and reliability of the first moving member 610 during movement.

[0079] The support structure can be a support hook, one end of which is fixedly connected to the adjusting seat or the rotating shaft 530. A support groove is provided on the first moving member 610, extending along the extending direction of the first moving member 610. The other end of the support hook extends into the support groove and is supported on one side wall of the support groove, thereby ensuring the safety, reliability and stability of the adjusting mechanism 600.

[0080] See Figures 1 to 4 In this embodiment, the transmission structure between the second moving member 620 and the first moving member 610 can refer to the transmission structure between the first moving member 610 and the adjusting seat, so that the second moving member 620 can move relative to the first moving member 610 along the extension direction of the second moving member 620.

[0081] See Figures 1 to 4 In this embodiment, the transmission structure between the third moving member 630 and the second moving member 620 can refer to the transmission structure between the first moving member 610 and the adjusting seat, so that the third moving member 630 can move relative to the second moving member 620 along the extension direction of the third moving member 630.

[0082] See Figures 1 to 5 In this embodiment, the welding mechanism 700 is disposed at the end of the third moving member 630 opposite to the rotation shaft 530. The welding mechanism 700 is connected to the third moving member 630 so that the welding mechanism 700 can move with the third moving member 630 along the first direction, the second direction and the third direction, and also so that the welding mechanism 700 can rotate with the third moving member 630 around the axis of the rotation shaft 530.

[0083] The welding mechanism 700 includes a rotating member 710 and a welding torch 730. The rotating member 710 is rotatably connected to a third moving member 630 about its own axis. The axis of rotation of the rotating member 710 is perpendicular to a first direction. The welding torch 730 is connected to the rotating member 710 so that it can rotate with the rotating member 710.

[0084] When the rotating component 710 rotates about its own rotation axis, the welding torch 730 rotates synchronously about the rotation axis of the rotating component 710. In a plane perpendicular to the rotation axis of the rotating component 710, the rotating component 710 rotates to adjust the angle between the welding torch 730 and the connecting pipe 12, so that the welding end of the welding torch 730 can move closer to or further away from the connecting pipe 12.

[0085] When the welding equipment 20 is welding the weld seam, both the adjusting mechanism 600 and the welding mechanism 700 rotate around the axis of the rotary shaft 530. The first moving part 610, the second moving part 620, and the third moving part 630 move respectively to adjust the position of the welding mechanism 700. The rotating part 710 rotates to adjust the angle between the welding torch 730 and the connecting pipe 12, so that the welding torch 730 can move along the saddle-shaped intersection line, thereby welding the weld seam, effectively ensuring the integrity of the weld, avoiding weld breakage, and improving the welding quality.

[0086] In related technologies, due to factors such as curvature or processing, the size of the welding gap between the curved surface mechanism and the connecting pipe 12 varies at different locations, making it impossible for the welding end of the welding torch 730 to extend into the interior of the welding gap.

[0087] In some embodiments, a welding rotation motor (not shown in the figure) is provided on the third rotating member 710, and the welding rotation motor is connected to the rotating member 710 for transmission, thereby facilitating the rotation of the rotating member 710 relative to the third rotating member 710.

[0088] See Figures 1 to 5 In this embodiment, the welding mechanism 700 further includes an angle adjustment component 720. The angle adjustment component 720 is connected between the rotating member 710 and the welding torch 730. The angle adjustment component 720 can move the welding end of the welding torch 730 closer to or further away from the rotating member 710. The angle adjustment component 720 can adjust the tilt angle of the welding torch 730 and the intersection welding point so that the welding end of the welding torch 730 can be inserted into the weld gap.

[0089] When the rotary shaft 530 rotates and the welding end of the welding torch 730 moves along the weld seam, the deflection angle adjustment component 720 can effectively adjust the tilt angle between the welding torch 730 and the intersection welding point, so that the welding end of the welding torch 730 can be inserted into the weld seam. This makes it easier for the welding torch 730 to input the molten material after melting the welding wire into various parts of the weld seam of different sizes at various angles, ensuring uniform welding quality at all parts of the weld seam, avoiding uneven molten material volume at different parts of the weld seam, and ensuring the reliability, stability and safety of the welding.

[0090] See Figures 1 to 5In this embodiment, the deflection angle adjustment assembly 720 includes a fixed base 721 and an arc-shaped plate 722 that are slidably connected. The fixed base 721 is fixedly connected to the rotating member 710 so that it can rotate with the rotating member 710. The arc-shaped plate 722 can slide relative to the fixed base 721 along its own extension direction, and the arc-shaped plate 722 is fixedly connected to the welding torch 730.

[0091] When the welding mechanism 700 welds the weld seam, the rotating component 710 rotates to adjust the angle between the welding torch 730 and the connecting pipe 12. The arc plate 722 moves relative to the fixed seat 721 to make the welding torch 730 deflect, so that the welding torch 730 can extend into the weld seam when rotating around the rotating shaft 530. This effectively improves the quality of the molten material in various parts of the weld seam, ensures stable, reliable and firm welding of the curved structure 11 and the connecting pipe 12, and guarantees the welding quality.

[0092] See Figures 1 to 5 In this embodiment, an arc-shaped groove 723 is provided on the side of the arc plate 722 facing the fixed seat 721. The arc-shaped groove 723 extends along the extension direction of the arc plate 722. The arc plate 722 is slidably sleeved on the fixed seat 721 through the arc-shaped groove 723, so as to effectively improve the connection strength, stability and reliability between the arc plate 722 and the fixed seat 721.

[0093] In some embodiments, the opposite side walls of the arcuate groove 723 are further provided with engaging grooves, which extend along the extending direction of the arcuate groove 723. After a portion of the fixing seat 721 extends into the engaging groove, the inner wall of the engaging groove can be limited to the fixing seat 721, so that the arcuate plate 722 can only move in an arc relative to the fixing seat 721, thereby improving the reliability and stability of the arcuate plate 722 and the fixing seat 721.

[0094] In some embodiments, the fixing base 721 may be provided with a plurality of limiting wheels (not shown in the figure) respectively relative to the two engaging slots. The plurality of limiting wheels are spaced apart, and the rotation axes of the plurality of limiting wheels are on the extended arc line of the arc groove 723. When the arc plate 722 rotates relative to the fixing base 721, the limiting wheels can effectively reduce the friction between the arc plate 722 and the fixing base 721, thereby facilitating the rotation of the arc plate 722 relative to the fixing base 721.

[0095] In some embodiments, the deflection angle adjustment assembly 720 further includes a helical gear (not shown), a helical motor, and a rack. The helical gear is rotatably mounted on the fixed base 721. The helical motor is mounted on the fixed base 721 and is drively connected to the helical gear. The rack is mounted on the arc-shaped plate 722, extending along the extension direction of the arc-shaped plate 722, and meshes with the helical gear so that the helical gear can drive the arc-shaped plate 722 to slide relative to the fixed base 721 via the rack.

[0096] When the welding torch 730 needs to be deflected, the deflection motor drives the deflection gear to rotate, and the deflection gear drives the deflection rack to rotate relative to the fixed seat 721, so that the welding torch 730 moves closer to or further away from the rotating part 710, thereby adjusting the angle between the welding torch 730 and the local line segment at the intersection of the welding line and the welding torch 730, making it easier for the welding torch 730 to be inserted into the welding gap, effectively improving the welding quality.

[0097] In other embodiments, the helical rack is disposed within the arcuate groove 723. The helical gear is disposed on the mounting base 721 and extends into the arcuate groove 723, thereby enabling the arcuate plate 722 to protect the helical gear and the helical rack.

[0098] In this embodiment, the welding torch 730 extends radially along the circle containing the arc plate 722, so as to facilitate the calculation of the deflection angle of the welding torch 730 when it follows the arc plate 722 to rotate relative to the fixed seat 721, thereby facilitating the control of the welding equipment 20 and improving the processing accuracy, reliability and stability of the welding equipment 20.

[0099] In some embodiments, the welding end of the welding torch 730 is located at the center of the circle containing the arc plate 722, so that when the arc plate 722 rotates relative to the fixed base 721, it does not affect the position of the welding end of the welding torch 730, but only changes the deflection angle of the welding torch.

[0100] In related technologies, the welding wire in submerged arc welding is usually thick and rigid. If part of the welding wire bends during the welding process, it will cause problems such as: fluctuation or jamming of the wire feeding speed of the welding torch 730, deviation of the welding wire from the intersection line, and uneven heat distribution caused by arc deviation of the welding torch 730.

[0101] See Figures 1 to 5 In this embodiment, the welding equipment 20 further includes a wire feed wheel 810 and multiple wire feeders (not shown in the figure). The wire feed wheel 810 is disposed on the protective shell 510. The submerged arc welding wire is wound inside the wire feed wheel 810. The wire feeders are used to limit the welding wire and prevent the welding wire from bending.

[0102] In some embodiments, multiple wire feeders may be mounted on the adjustment mechanism 600.

[0103] In some embodiments, multiple wire feeders may be mounted on the welding mechanism 700.

[0104] In some embodiments, multiple wire feeders may also be disposed on the adjustment mechanism 600 and / or the welding mechanism 700.

[0105] When the first moving part 610, the second moving part 620, the third moving part 630, the rotating part 710 and the deflection adjustment assembly 720 rotate with the rotary shaft 530, they can also achieve multi-stage bending of the welding wire through the welding wire holder. While ensuring the curvature of the welding wire holder, the welding wire can be stably and reliably extended into the welding gun 730, which facilitates the welding gun 730 to stably melt the welding wire, so that the welding wire can be stably melted in the welding gap, ensuring the welding quality of the weld.

[0106] See Figures 1 to 5 In this embodiment, the welding equipment 20 also includes a controller 820. The controller 820 can be electrically connected to the first drive motor, the column 420 rotation motor, the second drive motor, the third drive motor, the rotary drive component 520, the first moving motor, the second moving motor, the third moving motor, the welding rotation motor, and the skew motor, so as to control the operation of each drive structure individually or simultaneously, thereby facilitating the operator to control the operation of the welding equipment 20 through the controller 820.

[0107] In some embodiments, the controller 820 can also be electrically connected to the welding torch 730 to control the welding speed of the welding torch 730.

[0108] See Figures 1 to 5 In this application, when the worker welds the curved surface structure 11 and the non-radial nozzle 12 on the curved surface structure 11 using the welding equipment 20, the position of the rotary mechanism 500 can be adjusted by the moving mechanism 400 so that the axis of the rotary shaft 530 is coaxial with the axis of the nozzle 12.

[0109] Then, by adjusting the first moving part 610, the second moving part 620 and the third moving part 630, the welding mechanism 700 is brought closer to the periphery of the pipe 12, and by adjusting the rotating part 710, the welding end of the welding torch 730 is extended into the welding gap.

[0110] Finally, the rotary shaft 530 rotates, driving the adjustment mechanism 600 and the welding mechanism 700 to rotate. When the rotary shaft 530 rotates, the first moving part 610, the second moving part 620, and the third moving part 630 within the adjustment mechanism 600 can all move relative to each other. The rotating part 710 can rotate to adjust the angle between the welding torch 730 and the connecting pipe 12. The arc plate 722 rotates relative to the fixed base 721 to adjust the angle between the welding torch 730 and a portion of the arc segment at the intersection welding point. This allows the welding end of the welding torch 730 to move along the welding seam, and the welding torch 730 to be inserted into the welding seam. The welding torch 730 can stably and efficiently melt the welding wire and weld it to the curved structure 11 and the connecting pipe 12, effectively improving the welding quality and increasing the production efficiency of the workpieces to be welded.

[0111] The above embodiments are merely illustrative examples of structures. The structures in each embodiment are not fixed combinations. In the absence of structural conflicts, the structures in multiple embodiments can be arbitrarily combined and used. For example, the transmission structure between the first moving member 610 and the adjusting seat may also include gears and racks.

[0112] This application also provides a submerged arc welding method, which uses submerged arc welding equipment 20 to weld a curved surface structure 11 and a non-radial nozzle 12 on the curved surface structure 11.

[0113] Submerged arc welding methods (hereinafter referred to as welding methods) include:

[0114] Step S100: Adjust the position of the welding equipment 20, the curved structure 11, and the nozzle 12 so that the nozzle 12 is located on the side of the rotary shaft 530 where the adjustment mechanism 600 is set.

[0115] In step S200, the welding mechanism 700 is moved by the adjusting mechanism 600 so that the welding mechanism 700 is close to the peripheral sidewall of the nozzle 12.

[0116] Step S300: Start the rotating component 710 to rotate so that the welding end of the welding torch 730 moves to the intersection line.

[0117] Step S400: Start welding with welding torch 730; start rotating shaft 530 so that rotating shaft 530 drives welding torch 730 to rotate around the axis of pipe 12, and start adjusting mechanism 600 and rotating component 710 so that welding end of welding torch 730 moves along welding seam while welding.

[0118] When the welding equipment is welding the workpiece to be welded, the workpiece to be welded and the rotary mechanism 500 are moved so that the rotary shaft 530 is close to the pipe 12, and the pipe 12 is located on the side of the rotary shaft 530 where the adjustment mechanism 600 is set, thereby facilitating the welding equipment to process the workpiece to be welded and improving welding efficiency and welding quality.

[0119] The welding mechanism 700 is moved by the adjusting mechanism 600, and the rotating part 710 rotates so that the welding end of the welding gun 730 extends into the welding gap.

[0120] Start the rotary shaft 530, the adjusting mechanism 600 and the welding mechanism 700 so that the welding end of the welding gun 730 moves along the intersecting welding seam, so that the welding gun 730 melts the welding wire, the curved structure 11 and the connecting pipe 12, avoids weld breakage, improves welding quality and welding efficiency.

[0121] In some embodiments, the operator can use the moving mechanism 400 to make the rotation axis of the rotating shaft 530 coaxial with the axis of the connecting pipe 12.

[0122] In this embodiment, the welding mechanism 700 includes an angle adjustment component 720. Step S400 further includes step S410.

[0123] In step S410, when the rotary mechanism 500 drives the welding end of the welding torch 730 to rotate around the pipe 12, the deflection angle adjustment component 720 can adjust the angle between the welding torch 730 and the intersection welding point so that the welding end of the welding torch 730 can extend into the welding gap.

[0124] When the welding mechanism 700 rotates around the nozzle 12 to weld the weld seam, the deflection angle adjustment component 720 facilitates the insertion of the welding torch 730 into the weld seam, improving the quality of the molten pool formed after the curved structure 11, welding wire, and nozzle 12 melt, thereby effectively improving the welding quality and welding efficiency and reducing the welding cost.

[0125] In related technologies, when submerged arc welding is used to weld workpieces, under the action of gravity, the workpieces and the molten pool after the welding wire melts will flow downwards, resulting in different surface shapes, different welding quality, different stress bearing capacity, and poor welding quality of the workpieces.

[0126] In this embodiment, step S400 further includes step S420.

[0127] In step S420, when the welding torch 730 moves from top to bottom, the melting speed of the welding wire in the welding torch 730 gradually decreases; when the welding torch 730 moves from bottom to top, the melting speed of the welding wire in the welding torch 730 gradually increases.

[0128] As the welding torch 730 moves from top to bottom, the molten pool on the upper side flows downwards under the influence of gravity. At this time, the melting rate of the welding wire is reduced, causing the amount of molten wire melting within the weld gap to gradually decrease from top to bottom. As the molten pool on the upper side flows downwards, the excess molten material on the upper side mixes with the less molten material on the lower side, thus ensuring the surface quality of the weld at all points and improving the welding quality and reliability of the workpiece.

[0129] As the welding torch 730 moves from bottom to top, the melting speed of the welding wire in the welding torch 730 is gradually increased, so that the amount of welding wire melted gradually increases as the welding torch 730 moves upward. The larger molten pool on the upper side flows downward to the smaller molten pool on the lower side, thereby avoiding the problem of thinner weld on the upper side and thicker weld on the lower side, and ensuring the surface quality of the upper and lower sides of the workpiece to be welded.

[0130] Although this application has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since this application can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. Submerged arc welding equipment, characterized in that The welding equipment is used for welding a welding gap where a line of intersection exists between a curved surface structure and a non-radial pipe on the curved surface structure; the welding equipment comprises: a bearing table; a rotating mechanism arranged on the bearing table; the rotating mechanism comprises a rotating shaft and a rotating drive member for driving the rotating shaft to rotate; the rotating shaft extends along a first direction; an adjusting mechanism having opposite first and second ends, the first end being connected to a free end of the rotating shaft, and the second end being movable relative to the first end along a first direction, a second direction and a third direction, any two of the first direction, the second direction and the third direction being perpendicular to each other; a welding mechanism comprising a rotating member and a welding torch, the rotating member being rotatably connected to the second end, an axis of rotation of the rotating member being perpendicular to the first direction, and the rotating member being capable of rotating about the axis of rotation thereof; the welding torch being connected to the rotating member and capable of rotating with the rotating member; wherein, when the welding mechanism welds the curved surface structure and the non-radial pipe on the curved surface structure, an axial direction of the pipe extends along the first direction and is located on a side of the rotating shaft where the adjusting mechanism is arranged.

2. The welding equipment of claim 1, wherein, The welding mechanism further comprises an offset angle adjusting assembly connected between the rotating member and the welding torch, the offset angle adjusting assembly being capable of moving the welding end of the welding torch closer to or farther away from the rotating member; the offset angle adjusting assembly is capable of adjusting an inclination angle of the welding torch at a welding position of the line of intersection, so that the welding end of the welding torch can be inserted into the welding gap.

3. The welding equipment of claim 2, wherein, The offset angle adjusting assembly comprises a fixed seat and an arc-shaped plate which are slidably connected, the fixed seat being fixedly connected to the rotating member; the arc-shaped plate is capable of sliding relative to the fixed seat along an extension direction of the arc-shaped plate, and the arc-shaped plate is fixedly connected to the welding torch.

4. The welding equipment of claim 3, wherein, An arc-shaped groove is formed on a side of the arc-shaped plate facing the fixed seat, the arc-shaped groove extending along the extension direction of the arc-shaped plate, and the arc-shaped plate is slidably sleeved on the fixed seat through the arc-shaped groove; The offset angle adjusting assembly further comprises an offset gear, an offset motor and a rack, the offset gear being rotatably arranged on the fixed seat; the offset motor is arranged on the fixed seat and in transmission connection with the offset gear; the rack is arranged on the arc-shaped plate, extends along the extension direction of the arc-shaped plate, and is in meshing connection with the offset gear, so that the offset gear is capable of driving the arc-shaped plate to slide relative to the fixed seat through the rack.

5. The welding equipment of claim 3 or 4, wherein, The welding torch extends along a radial direction of a circle where the arc-shaped plate is located.

6. The welding equipment of claim 5, wherein, The welding end of the welding torch is located at a center of the circle where the arc-shaped plate is located.

7. The welding equipment of claim 1, wherein, The welding equipment comprises a moving mechanism, the moving mechanism comprising: a column extending along a first direction and arranged on the bearing table; a sliding seat slidably connected to the column along the first direction, so as to drive the rotating mechanism to move along the first direction; a moving arm extending along a third direction, the moving arm being slidably arranged on the sliding seat along the third direction, and the moving arm being capable of driving the rotating mechanism to move along the third direction; An adjusting fixed plate extending along the second direction is fixedly arranged at one end of the moving arm; the slewing mechanism is slidably connected to the adjusting fixed plate along the second direction.

8. The welding equipment of claim 7, wherein, The lower end of the column is further provided with a rotating platform, which is movably connected to the bearing table along the second direction, and the column is rotatably connected to the rotating platform around its own axis.

9. The welding equipment of claim 1, wherein, The adjusting mechanism comprises an adjusting seat, a first moving piece, a second moving piece and a third moving piece, the adjusting seat is fixedly connected to the slewing shaft; the first moving piece extends along the second direction, and is movably connected to the adjusting seat along the second direction; the second moving piece extends along the third direction, and is movably connected to the first moving piece along the third direction; The third moving piece extends along the first direction, and is movably connected to the second moving piece along the first direction.

10. The welding equipment of claim 1, wherein, The welding equipment further comprises a controller electrically connected with the slewing mechanism, the adjusting mechanism and the welding mechanism.

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