Automatic welding equipment for swing support

Abstract

The invention relates to the technical field of swing support welding, in particular to automatic welding equipment for a swing support. Comprising a bottom frame and a controller, the controller is installed on the side face of the bottom frame, a mechanical arm is installed on the bottom frame, a welding gun is arranged on the mechanical arm, and a supporting frame is further installed on the bottom frame. Traditional manual operation is replaced by automatic equipment, automatic fixing and welding of the transverse rod and the inclined rod of the swing support are achieved, the requirement for manual intervention is reduced, the time needed by each welding period is greatly shortened, and therefore the production efficiency is remarkably improved, and the production cost is reduced. The consistency and the precision of each welding process can be ensured by adopting an automation technology, the quality fluctuation caused by human factors is reduced, most work is automatically completed by a machine, and workers only need to simply monitor and maintain, so that the labor intensity of the workers is greatly reduced, the workers do not need to have very high welding skills, and the production efficiency is improved. And the requirement on human resources is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of swing bracket welding, and in particular to an automatic welding device for swing brackets. Background Art

[0002] As a common outdoor entertainment facility, the structure of a swing usually includes two "A"-shaped brackets and a crossbar connecting the two brackets. This design not only ensures the stability of the swing but also provides sufficient safety to ensure that users can enjoy the fun of swinging. However, manufacturing such a stable and safe swing frame involves precise welding between various components, especially the welding process of the crossbar and the diagonal bar forming the A-shaped bracket.

[0003] In the traditional production process, this welding step mainly relies on manual operation: Workers first need to manually fix the positions of the diagonal bar and the crossbar to ensure the correct angle and support strength between them; then, use a hand-held welding gun to perform welding operations along the contact position of the diagonal bar and the crossbar. This process not only requires workers to have excellent skills to ensure the welding quality but also requires a lot of time and energy to complete the positioning and welding work, resulting in low efficiency of the entire production process. In addition, due to the inevitable error range in manual operation, this may affect the quality and consistency of the final product. Summary of the Invention

[0004] In view of this, the present invention provides an automatic welding device for swing brackets, which can solve the problems that in the welding process of the crossbar and the diagonal bar forming the A-shaped bracket, manual welding not only requires workers to have excellent skills to ensure the welding quality but also requires a lot of time and energy to complete the positioning and welding work, resulting in low efficiency of the entire production process and affecting the quality and consistency of the final product.

[0005] The technical solution is as follows: An automatic welding device for swing brackets includes a chassis and a controller. The controller is installed on the side of the chassis. A robotic arm is installed on the chassis, and a welding gun is arranged on the robotic arm. A support frame is also installed on the chassis. A placement seat and a pressing mechanism are installed on the support frame. The placement seat is used for placing the crossbar of the A-shaped bracket, and the pressing mechanism is used for pressing the crossbar of the A-shaped bracket. A circular feeding seat and a rotating ring are rotatably installed on the support frame. The circular feeding seat is used for placing the diagonal bar of the A-shaped bracket. A toothed ring is installed on the top of the rotating ring, and a limiting block is installed on the top of the toothed ring. A rotating mechanism and an adjusting mechanism are arranged on the support frame. The rotating mechanism is used to drive the toothed ring to rotate, so that the limiting block on the toothed ring limits the diagonal bar of the A-shaped bracket, and the adjusting mechanism is used to drive the circular feeding seat to rotate to adjust the orientation of the diagonal bar of the A-shaped bracket.

[0006] Optionally, the pressing mechanism includes an electric push rod and a pressing block. An electric push rod is installed on the top of the support frame, and a pressing block is rotatably connected to the object placing seat. The pressing block is used to press the cross bar of the A-type bracket. A strip-shaped hole is formed in the pressing block, and the telescopic rod of the electric push rod moves in the strip-shaped hole.

[0007] Optionally, the rotating mechanism includes a first motor and a first gear. The first motor is installed on the support frame, a first gear is connected to the output shaft of the first motor, and the first gear meshes with the toothed ring.

[0008] Optionally, the adjusting mechanism includes a second motor and a second gear. Teeth are provided on the outer side of the annular loading seat. The second motor is installed on the support frame, a second gear is connected to the output shaft of the second motor, and the second gear meshes with the teeth on the outer side of the annular loading seat.

[0009] Optionally, a conveying mechanism is further included. The conveying mechanism includes a drag reduction wheel, a third motor and a conveying wheel. Drag reduction wheels are rotatably arranged on both the annular loading seat and the limiting block. The third motor is installed on the side of the limiting block, and a conveying wheel is rotatably arranged on the limiting block. The conveying wheel is connected to the output shaft of the third motor.

[0010] Optionally, a support mechanism is further included. The support mechanism includes an electric multi-joint telescopic rod, a support column and a universal ball. Electric multi-joint telescopic rods are connected to both the object placing seat and the annular loading seat. Support columns are connected to the ends of the electric multi-joint telescopic rods, and universal balls are embedded at the bottoms of the support columns.

[0011] Optionally, a control mechanism is further included. The control mechanism includes a movable rod, a lifting rod, a first touch switch, a second touch switch and a reset member. The movable rod is slidably arranged on the support column, the lifting rod is slidably arranged on the movable rod, the first touch switch and the second touch switch are installed on the side of the support column, the lifting rod is used to touch the first touch switch and the second touch switch, and the first touch switch and the second touch switch are used to control the start and stop of the electric multi-joint telescopic rod. The reset member is used to reset the movable rod and the lifting rod after they move.

[0012] Optionally, the reset member includes a first spring and a second spring. A first spring is connected between the movable rod and the support column, and a second spring is connected between the lifting rod and the movable rod.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention replaces traditional manual operations with automated equipment, achieving automatic fixation and welding of the crossbar and diagonal bar of the swing bracket. This not only reduces the need for manual intervention but also significantly shortens the time required for each welding cycle, thereby remarkably improving production efficiency. Moreover, the use of automated technology can ensure the consistency and precision of each welding process, reducing quality fluctuations caused by human factors. Since most of the work is automatically completed by the machine, workers only need to perform simple monitoring and maintenance, greatly reducing the labor intensity of workers and not requiring workers to have particularly high welding skills, thus lowering the requirements for human resources.

[0014] 2. By setting up a conveying mechanism, the present invention can drive the diagonal bar to move using the conveying wheels, thereby adjusting the contact position between the diagonal bar and the crossbar, facilitating the adjustment of the contact position between the diagonal bar and the crossbar by workers.

[0015] 3. By setting up a support mechanism and a control mechanism, the present invention can support the ends of the crossbar and diagonal bar using the support columns to improve the stability of the crossbar and diagonal bar during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0017] Figure 2 is a three-dimensional structural schematic diagram of the welding gun, support frame, and placement seat of the present invention.

[0018] Figure 3 is a three-dimensional structural schematic diagram of the pressing mechanism, annular feeding seat, and limiting block of the present invention.

[0019] Figure 4 is a separated structural diagram of the pressing mechanism, annular feeding seat, and limiting block of the present invention.

[0020] Figure 5 is a three-dimensional structural schematic diagram of the rotating mechanism and adjusting mechanism of the present invention.

[0021] Figure 6 is a three-dimensional structural schematic diagram of the resistance-reducing wheel, third motor, and conveying wheel of the present invention.

[0022] Figure 7 is a three-dimensional structural schematic diagram of the conveying mechanism of the present invention.

[0023] Figure 8 is a three-dimensional structural schematic diagram of the placement seat, annular feeding seat, and electric multi-section telescopic rod of the present invention.

[0024] Figure 9 is a cross-sectional view of the support mechanism of the present invention.

[0025] Figure 10This is a three-dimensional structural schematic diagram of the support column, movable rod and lifting rod of the present invention.

[0026] Figure 11 This is a three-dimensional structural schematic diagram of the control mechanism of the present invention.

[0027] Figure 12 This is a structural separation diagram of the control mechanism of the present invention.

[0028] Figure 13 This is a three-dimensional structural schematic diagram of the lifting rod, first touch switch and second touch switch of the present invention.

[0029] Explanation of reference numerals: 1, chassis; 2, controller; 3, robotic arm; 4, welding gun; 5, support frame; 6, object placement seat; 701, electric push rod; 702, pressing block; 8, annular loading seat; 9, rotating ring; 10, toothed ring; 11, limiting block; 1201, first motor; 1202, first gear; 1301, second motor; 1302, second gear; 14, resistance reducing wheel; 15, third motor; 16, conveying wheel; 17, electric multi-section telescopic rod; 18, support column; 19, universal ball; 20, movable rod; 21, lifting rod; 22, first touch switch; 23, second touch switch; 24, first spring; 25, second spring. Detailed implementation manners

[0030] Embodiment: An automatic welding device for a swing bracket, refer to Figures 1-6As shown in the figure, it includes a chassis 1 and a controller 2; the controller 2 is installed on the upper right side of the chassis 1; it also includes a robotic arm 3, a welding gun 4, a support frame 5, a placement seat 6, a pressing mechanism, an annular loading seat 8, a rotating ring 9, a toothed ring 10, a limiting block 11, a rotating mechanism and an adjusting mechanism; the robotic arm 3 is installed on the upper left part of the chassis 1, and the robotic arm 3 is electrically connected to the controller 2; the welding gun 4 is arranged on the robotic arm 3, and the welding gun 4 is electrically connected to the controller 2; the support frame 5 is installed on the lower left part of the chassis 1; the placement seat 6 is installed on the top left of the support frame 5, and the placement seat 6 is provided with a U-shaped structure for placing the cross bar of the A-shaped bracket, and a rubber layer is arranged on the U-shaped structure for increasing the friction with the cross bar; the pressing mechanism is arranged on the top of the support frame 5 for pressing the cross bar of the A-shaped bracket to limit the cross bar of the A-shaped bracket; the annular loading seat 8 and the rotating ring 9 are rotatably installed on the support frame 5, the annular loading seat 8 is located outside the rotating ring 9, and two U-shaped structures are arranged on the annular loading seat 8 for placing the inclined bar of the A-shaped bracket, and a rubber layer is arranged on the U-shaped structure for increasing the friction with the inclined bar; the toothed ring 10 is installed on the top of the rotating ring 9; two limiting blocks 11 are installed on the top of the toothed ring 10; the rotating mechanism and the adjusting mechanism are arranged on the support frame 5, the rotating mechanism is used to drive the toothed ring 10 to rotate so that the limiting blocks 11 on the toothed ring 10 limit the inclined bar of the A-shaped bracket, and the adjusting mechanism is used to drive the annular loading seat 8 to rotate to adjust the orientation of the inclined bar of the A-shaped bracket.

[0031] See Figure 3 and Figure 4 As shown in the figure, the pressing mechanism includes an electric push rod 701 and a pressing block 702; the electric push rod 701 is installed on the top left of the support frame 5, the electric push rod 701 is electrically connected to the controller 2, and the electric push rod 701 is located in front of the placement seat 6; the pressing block 702 is rotatably connected to the upper front part of the placement seat 6 for pressing the cross bar of the A-shaped bracket, and a strip hole is opened in the upper front part of the pressing block 702, and the telescopic rod of the electric push rod 701 moves in the strip hole.

[0032] See Figure 5 and Figure 6 As shown in the figure, the rotating mechanism includes a first motor 1201 and a first gear 1202; the first motor 1201 is installed on the upper right part of the support frame 5, and the first motor 1201 is electrically connected to the controller 2; the output shaft of the first motor 1201 is connected with the first gear 1202, and the first gear 1202 meshes with the toothed ring 10.

[0033] See Figure 5 and Figure 6As shown in the figure, the adjusting mechanism includes a second motor 1301 and a second gear 1302; teeth are provided on the outer side of the annular loading seat 8, the second motor 1301 is installed on the upper right part of the support frame 5, the second motor 1301 is electrically connected to the controller 2, and the second motor 1301 is located behind the first motor 1201; a second gear 1302 is connected to the output shaft of the second motor 1301, and the second gear 1302 meshes with the teeth on the outer side of the annular loading seat 8.

[0034] During use, first place the diagonal bar of the A-type bracket between the two U-shaped structures of the annular loading seat 8, and then control the second motor 1301 by the controller 2 to drive the second gear 1302 to rotate forward or backward, so that the second gear 1302 drives the annular loading seat 8 to rotate forward or backward, thereby driving the diagonal bar on the annular loading seat 8 to rotate forward or backward, so as to adjust the orientation of the diagonal bar. After adjustment, then control the first motor 1201 by the controller 2 to drive the first gear 1202 to rotate, so that the first gear 1202 drives the toothed ring 10, the rotating ring 9 and the limiting block 11 to rotate, so that the limiting block 11 moves toward the side close to the diagonal bar, so that the limiting block 11 presses the diagonal bar on the annular loading seat 8, thereby limiting the diagonal bar on the annular loading seat 8. Then control the telescopic rod of the electric push rod 701 by the controller 2 to shorten, so that the telescopic rod of the electric push rod 701 pulls the pressing block 702 to rotate and open. Then place the cross bar of the A-type bracket in the U-shaped structure of the placing seat 6 and make the cross bar of the A-type bracket contact the diagonal bar. Then control the telescopic rod of the electric push rod 701 by the controller 2 to extend, so that the telescopic rod of the electric push rod 701 pushes the pressing block 702 to reverse and reset, so that the pressing block 702 presses the cross bar on the placing seat 6, thereby limiting the cross bar. After that, control the robotic arm 3 and the welding gun 4 to start by the controller 2, so that the robotic arm 3 drives the welding gun 4 to move toward the contact position of the cross bar and the diagonal bar, and the welding gun 4 welds the contact position of the cross bar and the diagonal bar until the robotic arm 3 drives the welding gun 4 to complete the welding of the cross bar and the diagonal bar. After the cross bar and the diagonal bar are welded, then control the robotic arm 3 and the welding gun 4 to close by the controller 2. Then, control the telescopic rod of the electric push rod 701 to shorten again by the controller 2, so that the telescopic rod of the electric push rod 701 pulls the pressing block 702 to rotate and open, so that the pressing block 702 releases the limit on the welded cross bar. Then control the first motor 1201 to drive the first gear 1202 to reverse and reset by the controller 2, so that the first gear 1202 drives the toothed ring 10, the rotating ring 9 and the limiting block 11 to reverse and reset, so that the limiting block 11 moves away from the diagonal bar to reset, so that the limiting block 11 releases the diagonal bar on the annular loading seat 8, thereby releasing the limit on the welded diagonal bar. After that, take out the welded cross bar and diagonal bar, and then control the telescopic rod of the electric push rod 701 to extend by the controller 2, so that the telescopic rod of the electric push rod 701 pushes the pressing block 702 to reverse and reset.

[0035] See Figure 6 and Figure 7 As shown, it further includes a conveying mechanism, which includes a resistance-reducing wheel 14, a third motor 15 and a conveying wheel 16; resistance-reducing wheels 14 are rotatably installed on the U-shaped structure of the annular loading seat 8 and the inner top of the limiting block 11; a third motor 15 is installed on the side of the limiting block 11. The third motor 15 has a self-locking function when it is not working. When the third motor 15 is in the self-locking function, its output shaft cannot rotate (not described in detail in the prior art). The third motor 15 is electrically connected to the controller 2; a conveying wheel 16 is rotatably arranged above the limiting block 11, and the conveying wheel 16 is connected to the output shaft of the third motor 15.

[0036] By setting the conveying mechanism, when the inclined rod is placed into the U-shaped structure of the annular loading seat 8, the inclined rod will contact the resistance-reducing wheel 14; when the limiting block 11 moves towards the side close to the inclined rod, the limiting block 11 will use the resistance-reducing wheel 14 thereon to press the inclined rod in the U-shaped structure, and make the conveying wheel 16 on the limiting block 11 contact the inclined rod. When it is necessary to adjust the contact position between the inclined rod and the cross rod, the controller 2 can be used to control the third motor 15 to start, so that the third motor 15 drives the conveying wheel 16 to rotate forward or backward, so that the conveying wheel 16 drives the inclined rod to move forward or backward, thereby adjusting the contact position between the inclined rod and the cross rod. During the forward or backward movement of the inclined rod, the resistance-reducing wheel 14 can reduce the resistance received by the movement of the inclined rod by rotating. After adjustment, the controller 2 is used to control the third motor 15 to turn off, so that the third motor 15 is in a self-locking state, thereby restricting the conveying wheel 16 from rotating, so as to use the friction of the conveying wheel 16 to limit the inclined rod; when the limiting block 11 moves towards the side away from the inclined rod, the resistance-reducing wheel 14 on the limiting block 11 will separate from the inclined rod that has been welded, and the conveying wheel 16 on the limiting block 11 will also separate from the inclined rod. After that, when the inclined rod is taken out from the U-shaped structure of the annular loading seat 8, the inclined rod will separate from the resistance-reducing wheel 14 of the annular loading seat 8.

[0037] See Figure 8 and Figure 9 As shown, it further includes a support mechanism, which includes an electric multi-section telescopic rod 17, a support column 18 and a universal ball 19; electric multi-section telescopic rods 17 are connected to the left side of the placement seat 6 and the front and rear sides of the annular loading seat 8. The electric multi-section telescopic rods 17 are electrically connected to the controller 2; the end of the electric multi-section telescopic rod 17 is connected to a support column 18; a universal ball 19 is embedded at the bottom of the support column 18, and the universal ball 19 is used for rolling on the bottom surface so that the support column 18 can move and adjust its position.

[0038] See Figures 10-13As shown, it further includes a control mechanism, which includes a movable rod 20, a lifting rod 21, a first touch switch 22, a second touch switch 23 and a reset member; two movable rods 20 are slidably arranged on the upper side of the support column 18 away from the support frame 5; a lifting rod 21 is slidably arranged between the two movable rods 20 on the same support column 18, and a strip-shaped groove is opened in the middle of the upper side of the lifting rod 21; the first touch switch 22 and the second touch switch 23 are installed on the side surface of the support column 18, the strip-shaped groove on the lifting rod 21 is aligned with the second touch switch 23, the lifting rod 21 is used to touch the first touch switch 22 and the second touch switch 23, and the first touch switch 22 and the second touch switch 23 are used to control the start and stop of the electric multi-section telescopic rod 17; the reset member includes a first spring 24 and a second spring 25, a first spring 24 is connected between the movable rod 20 and the support column 18, and a second spring 25 is connected between the lifting rod 21 and the movable rod 20.

[0039] By setting up the support mechanism and the control mechanism, after the cross bar and the diagonal bar are placed, the cross bar and the diagonal bar will contact the top of the support column 18, enabling the support column 18 to support the cross bar and the diagonal bar. Moreover, the cross bar and the diagonal bar will squeeze the lifting rod 21 to move downward, compressing the second spring 25, causing the lifting rod 21 to press the first touch switch 22 and making the second touch switch 23 enter the strip-shaped groove on the lifting rod 21. Thereby, the first touch switch 22 controls the electric multi-joint telescopic rod 17 to extend. Furthermore, the electric multi-joint telescopic rod 17 drives the support column 18, the universal ball 19, the movable rod 20, the lifting rod 21, the first touch switch 22, and the second touch switch 23 to move away from one side of the support frame 5, so that the support column 18 moves towards the ends of the cross bar and the diagonal bar, thereby improving the support stability by supporting the ends of the cross bar and the diagonal bar. If flange plates are not installed at the ends of the cross bar and the diagonal bar, when the lifting rod 21 separates from the ends of the cross bar and the diagonal bar, the second spring 25 returns to its original state, and the second spring 25 drives the lifting rod 21 to move upward and reset, causing the lifting rod 21 to release the first touch switch 22. Thus, the first touch switch 22 controls the electric multi-joint telescopic rod 17 to stop extending. In this way, the support column 18 can just be aligned with the ends of the cross bar and the diagonal bar. After that, when the welded cross bar and diagonal bar are taken out, the controller 2 is used to control the electric multi-joint telescopic rod 17 to shorten and reset, and the electric multi-joint telescopic rod 17 drives the support column 18, the universal ball 19, the movable rod 20, the lifting rod 21, the first touch switch 22, and the second touch switch 23 to move and reset towards one side of the support frame 5;If flanges are installed at the ends of the cross bar and the diagonal bar, when the lifting rod 21 moves to contact the flange, the flange will block the lifting rod 21 and the movable rod 20 from moving. When the support column 18, the first touch switch 22 and the second touch switch 23 continue to move away from the support frame 5, the first spring 24 is compressed, and the first touch switch 22 is further pressed by the lifting rod 21 (not affected). When the second touch switch 23 contacts the lifting rod 21, the lifting rod 21 will press the second touch switch 23. At this time, the second touch switch 23 will control the electric multi-joint expansion rod 17 to stop extending, so that the support column 18 is just aligned with the ends of the cross bar and the diagonal bar. After that, when the welded cross bar and diagonal bar are taken out, the welded cross bar and diagonal bar will separate from the lifting rod 21. At this time, the second spring 25 returns to its original state, and the second spring 25 drives the lifting rod 21 to move upward and reset, so that the lifting rod 21 releases the first touch switch 22. At the same time, the flange at the end of the cross bar and the diagonal bar will separate from the lifting rod 21, so that the first spring 24 returns to its original state, and the first spring 24 drives the movable rod 20 and the lifting rod 21 to move away from the support frame 5, so that the lifting rod 21 separates from the second touch switch 23, so that the lifting rod 21 releases the second touch switch 23. Then, the controller 2 is used to control the electric multi-joint expansion rod 17 to shorten and reset, so that the electric multi-joint expansion rod 17 drives the support column 18, the universal ball 19, the movable rod 20, the lifting rod 21, the first touch switch 22 and the second touch switch 23 to move and reset toward the support frame 5.

Claims

1. An automated welding device for a swing frame, comprising a base frame (1) and a controller (2), wherein the controller (2) is mounted on the side of the base frame (1), wherein: A mechanical arm (3) is mounted on the base frame (1), and a welding gun (4) is arranged on the mechanical arm (3). A support frame (5) is also mounted on the base frame (1), and a storage seat (6) and a pressing mechanism are mounted on the support frame (5). The storage seat (6) is used to place the cross bar of the A-type bracket, and the pressing mechanism is used to press the cross bar of the A-type bracket. An annular loading seat (8) and a rotating ring (9) are rotatably mounted on the support frame (5), and the annular loading seat (8) is used to place the oblique rod of the A-type bracket. A gear ring (10) is mounted on the top of the rotating ring (9), and a limiting block (11) is mounted on the top of the gear ring (10). A rotating mechanism and an adjusting mechanism are arranged on the support frame (5), and the rotating mechanism is used to drive the gear ring (10) to rotate so that the limiting block (11) on the gear ring (10) limits the oblique rod of the A-type bracket. The adjusting mechanism is used to drive the annular loading seat (8) to rotate so as to adjust the direction of the oblique rod of the A-type bracket.

2. An automatic welding device for swing bracket according to claim 1, characterized in that: The clamping mechanism comprises an electric push rod (701) and a clamping block (702). The electric push rod (701) is installed on the top of the support frame (5). The clamping block (702) is rotatably connected to the storage seat (6). The clamping block (702) is used to clamp the cross bar of the A-type bracket. The clamping block (702) is provided with a strip hole. The telescopic rod of the electric push rod (701) moves in the strip hole.

3. An automatic welding device for swing bracket according to claim 1, characterized in that: The rotating mechanism comprises a first motor (1201) and a first gear (1202); the first motor (1201) is mounted on the support frame (5); the output shaft of the first motor (1201) is connected to the first gear (1202); and the first gear (1202) is meshed with the gear ring (10).

4. An automatic welding device for swing bracket according to claim 1, characterized in that: The adjustment mechanism comprises a second motor (1301) and a second gear (1302); teeth are arranged on the outer side of the annular loading seat (8); the second motor (1301) is mounted on the support frame (5); the output shaft of the second motor (1301) is connected to the second gear (1302); the second gear (1302) is meshed with the teeth on the outer side of the annular loading seat (8).

5. An automatic welding device for swing bracket according to claim 1, characterized in that: The invention also comprises a conveying mechanism, which comprises a resistance reducing wheel (14), a third motor (15) and a conveying wheel (16); the resistance reducing wheel (14) is rotatably arranged on the annular loading seat (8) and the limit block (11); the third motor (15) is installed on the side of the limit block (11); the conveying wheel (16) is rotatably arranged on the limit block (11); and the conveying wheel (16) is connected to the output shaft of the third motor (15).

6. An automatic welding device for swing bracket according to claim 1, characterized in that: The utility model also comprises a supporting mechanism, which comprises an electric multi-section telescopic rod (17), a supporting column (18) and a universal ball (19); the storage seat (6) and the annular loading seat (8) are both connected to the electric multi-section telescopic rod (17); the ends of the electric multi-section telescopic rod (17) are both connected to the supporting column (18); and the bottom of the supporting column (18) is inlaid with a universal ball (19).

7. An automatic welding device for swing support according to claim 6, characterized in that: The invention also comprises a control mechanism, which comprises a movable rod (20), a lifting rod (21), a first touch switch (22), a second touch switch (23) and a reset member. The movable rod (20) is slidably arranged on the support column (18), the lifting rod (21) is slidably arranged on the movable rod (20), the first touch switch (22) and the second touch switch (23) are installed on the side of the support column (18), the lifting rod (21) is used to touch the first touch switch (22) and the second touch switch (23), the first touch switch (22) and the second touch switch (23) are used to control the start and stop of the electric multi-section telescopic rod (17), and the reset member is used to reset the movable rod (20) and the lifting rod (21) after they move.

8. An automatic welding device for swing support according to claim 7, characterized in that: The reset member comprises a first spring (24) and a second spring (25); the first spring (24) is connected between the movable rod (20) and the support column (18); and the second spring (25) is connected between the lifting rod (21) and the movable rod (20).

Images