Metal welding machine with multi-module assembling and positioning functions and welding method

Abstract

The invention discloses a metal welding machine with a multi-module assembling and positioning function and a welding method, and belongs to the technical field of metal welding machining. The metal welding machine comprises a machine body placed in a workshop, and a welding mechanical arm and a workbench are installed above the machine body; sliding grooves are symmetrically formed in the workbench, a lead screw is rotationally installed on the inner sides of the sliding grooves, two sliding bases are symmetrically connected to the outer side of the lead screw, meanwhile, a fixing frame is fixedly installed at the upper ends of the sliding bases, a movable base is slidably arranged on the upper surface of the fixing frame in an attached mode, and a supporting plate is movably connected to the upper portion of a sliding block through a connecting rod. A clamping and fixing assembly used for preliminarily fixing the metal plate is arranged at the end, away from the workbench, of the supporting plate. According to the metal welding machine with the multi-module splicing and positioning function and the welding method, multi-angle convenient splicing and positioning can be conducted on plates, the stability in the welding process is effectively improved, meanwhile, automatic cleaning of the welding end can be achieved in the welding process, and the welding effect is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal welding, in particular to a metal welding machine with multi-module assembly and positioning and a welding method. Background Art

[0002] During the processing of metal sheets, it is often necessary to weld the metal sheets according to the product shape requirements. The existing metal welding machines are not convenient for stably clamping and assembling the sheets during use, which affects the welding accuracy.

[0003] The prior art (application number: 202411454678.7, Chinese patent application date: 2024-10-17) discloses a sheet metal welding device with a positioning function, including a panel and a fixing frame, the upper end surface of the panel is fixed with a fixing frame, a movable plate is symmetrically arranged above the panel, a sliding rod is symmetrically fixed to the lower end surface of the movable plate, the sliding rod and the panel are slidably connected, and one end of a first spring is also fixed to the lower end surface of the movable plate. The sheet metal welding device with a positioning function adopts an expandable operating table structure, which can facilitate the operating table to be moved outward. , avoiding obstruction of the welding mechanism to the installation and fixation of the sheet metal parts, and when the operating table is reset, the position of the clamping plate can be adjusted through the transmission action between the convex tooth plate and the gear, and the sheet metal part can be driven to move through the clamping plate until the sheet metal part contacts the convex strip, thereby realizing the automatic positioning of the sheet metal part, and ensuring that the distance between the welding surfaces of the two sheet metal parts is equal, thereby ensuring the welding quality of the sheet metal parts in the later stage; however, during use, the plates can only remain in a horizontal state when they are butted, which makes it inconvenient to adjust the welding angle of the metal plates during assembly, and there are certain defects in use. Summary of the invention

[0004] The purpose of the present invention is to provide a metal welding machine and a welding method with multi-module assembly and positioning, so as to solve the problem raised by the above background technology that the metal welding machines currently on the market are inconvenient to adjust the welding angle of metal plates during the assembly process.

[0005] To achieve the above object, the present invention provides the following technical solution: a metal welding machine with multi-module assembly and positioning, comprising a machine body placed in a workshop, a welding robot arm and a workbench are installed above the machine body, and an adjustment motor is fixedly installed on the side wall of the workbench; The workbench is symmetrically provided with sliding grooves, and a screw rod is rotatably installed on the inner side of the sliding groove, and two sliding seats are symmetrically connected to the outer side of the screw rod, and a fixing frame is fixedly installed on the upper end of the sliding seat, and a sliding block is fixedly installed on the upper surface of the fixing frame, a movable seat is slidingly provided on the upper surface of the fixing frame, and a support plate is movably connected to the upper side of the sliding block through a connecting rod, and a clamping component for preliminarily fixing the metal sheet is provided at the end of the support plate away from the workbench, and a negative pressure adsorption component is provided between the movable seat and the support plate, and a support plate is also fixedly installed on the lower surface of the support plate, and a cleaning and cooling component is also provided on the workbench.

[0006] Preferably, the spiral directions of the two ends of the screw rod are opposite, and the two ends of the screw rod are respectively threadedly connected to the two slide seats, and the slide seat and the slide groove are slidably connected, and when the screw rod rotates, the two slide seats are driven to slide along the slide groove at the same time.

[0007] Preferably, the slider passes through a through slot provided on the movable seat, and the slider is slidably connected to the movable seat, and a first spring is fixedly connected between the slider and the movable seat, and the movable seat is driven to move synchronously by the first spring during the movement of the slider.

[0008] Preferably, the clamping assembly includes an adjusting bolt rotatably mounted on the upper surface of the support plate, and a pressure plate is threadedly connected to the outer side of the adjusting bolt, and guide columns are symmetrically fixedly mounted on the lower surface of the pressure plate, and the guide columns are slidably connected to the support plate, and the pressure plate cooperates with the support plate to clamp and fix the metal sheet during the downward movement of the pressure plate.

[0009] Preferably, the movable seat and the support plate are rotatably connected, and when the metal plates on the two support plates are in contact, the slider slides along the groove opened on the movable seat, and the two ends of the connecting rod are respectively rotatably connected to the slider and the support plate, and the slider drives the support plate to rotate and adjust through the connecting rod.

[0010] Preferably, the negative pressure adsorption component includes a suction cup that is fixedly installed on the support plate, and the inner side of the suction cup is slidably connected with a sealing plug, and the lower end of the sealing plug is fixedly connected with a pull rod, and the pull rod is telescopically extended through the lower end of the suction cup, and a second spring is fixedly connected between the sealing plug and the suction cup, a mounting seat is fixedly installed on the movable seat, and a movable plate is slidably connected on the inner side of the mounting seat, and a pull rope is fixedly connected between the movable plate and the lower end of the pull rod, and when the support plate rotates, the movable plate pulls the pull rod and the sealing plug to slide on the inner side of the suction cup through the pull rope, and the suction cup absorbs the metal plate on the upper surface of the support plate through negative pressure, and an exhaust plug is also provided on the suction cup.

[0011] Preferably, the negative pressure adsorption assembly also includes a heat conducting plate fixedly mounted on the outside of the support plate, and an air storage bag is fitted on the inner side of the heat conducting plate, and an adjusting air bag is fixedly connected between the upper inner wall of the mounting seat and the movable plate, and the adjusting air bag and the air storage bag are connected by a catheter.

[0012] Preferably, the cleaning and cooling component includes an air delivery bag body arranged on the inner side of the slide, and the air delivery bag body is connected between the inner wall of the slide and the slide seat, and an air head is evenly fixedly installed on the upper surface of the workbench, an air delivery pipe is connected between the air delivery bag body and the air head, and an air intake pipe is also connected to the air delivery bag body, and both the air delivery pipe and the air intake pipe are provided with a one-way valve structure, and a pressure valve structure is also provided on the air delivery pipe.

[0013] A welding method of a metal welding machine with multi-module assembly and positioning, comprising the following steps: S1. Place the metal sheet to be welded on the upper surface of the support plate, and rotate the adjusting bolts so that the pressure plate cooperates with the support plate to clamp and fix the metal sheet; S2, start the adjustment motor to drive the screw to rotate, and then drive the slide to slide along the slide groove. At this time, the slide will drive the movable seat and the support plate to move synchronously. When the welding ends of the two plates are fitted, continue to control the two slides to slide closer. At this time, the slider will be slidably connected with the movable seat, and then drive the support plate to rotate to adjust the welding angle; S3. During the rotation of the support plate, the movable plate will pull the pull rod through the pull rope, so that the pull rod pulls the sealing plug to slide in the suction cup, so that the suction cup can adsorb and fix the metal plate on the support plate, further improving the positioning stability of the plate. During the welding process, the regulating airbag will expand due to heat, thereby pushing the movable plate to move downward, thereby further pulling the sealing plug to move through the pull rope, thereby ensuring the adsorption effect of the suction cup; S4. During the movement of the slide, the air delivery bag will be squeezed. When the welding ends of the two metal plates are close to each other, the pressure valve in the air delivery pipe opens, so that the gas in the air delivery bag can be quickly sprayed to the welding ends of the metal plates, realizing automatic cleaning to improve the subsequent welding effect.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the metal welding machine with multi-module assembly and positioning and the welding method can conveniently assemble and position the plate at multiple angles, effectively improving the stability during the welding process, and at the same time, the welding end can be automatically cleaned during the welding process, effectively improving the welding effect, and the specific contents are as follows; 1. A support plate, an adjusting bolt and a pressing plate are provided. By placing the metal sheet to be welded on the support plate, the adjusting bolt is subsequently rotated to drive the pressing plate to be raised and lowered, so that the pressing plate can cooperate with the support plate to initially fix the metal sheet. The sliding seat is subsequently controlled to move, so that the welding ends of the sheet can gradually approach and contact each other; 2. A slider, a movable seat, a connecting rod and a support plate are provided. When the welding ends of the plates are in contact with each other, the movement of the slider is continuously controlled, so that the slider and the movable seat can be slid and adjusted, thereby making the connecting rod push the support plate to rotate. At this time, the support plate can drive the metal plate initially fixed on its outer side to rotate, thereby achieving the purpose of adjusting the welding assembly angle. The operation is convenient, so that there is no need to adjust the angle during the initial fixation; 3. A suction cup, a sealing plug, a pull rod and a pull rope are provided. As the support plate rotates, the suction cup will gradually move away from the movable seat. At this time, the pull rope will pull the pull rod and the sealing plug downward, so that the suction cup can adsorb the metal plate on the support plate to improve the positioning stability of the plate during tilting. At the same time, the air storage bag will be heated during the welding process, so that the gas in the air storage bag and the air delivery bag body will expand. After the air delivery bag body expands, it pushes the movable plate downward, thereby further pulling the pull rope to ensure that the suction cup has sufficient adsorption force after being heated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the top view structure of the present invention; Figure 3 It is a schematic diagram of the side view structure of the workbench of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the workbench of the present invention; Figure 5 It is a schematic diagram of the connection structure of the fixing frame, the movable seat and the supporting plate of the present invention; Figure 6 This is a schematic diagram of the top view of the support plate of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the support plate of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at A in the middle.

[0016] In the figure: 1. Machine body; 2. Welding robot arm; 3. Workbench; 4. Adjusting motor; 5. Slide; 6. Screw rod; 7. Sliding seat; 8. Fixed frame; 9. Sliding block; 10. Movable seat; 11. First spring; 12. Connecting rod; 13. Support plate; 14. Support plate; 15. Adjusting bolt; 16. Press plate; 17. Guide column; 18. Suction cup; 19. Sealing plug; 20. Pull rod; 21. Second spring; 22. Mounting seat; 23. Movable plate; 24. Pull rope; 25. Heat conducting plate; 26. Air storage bag; 27. Adjusting air bag; 28. Conduit; 29. ​​Air delivery bag body; 30. Air head. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figure 1-Figure 5 As shown, the existing metal welding machine is not convenient for convenient multi-angle splicing of plates during use, resulting in limited welding accuracy. In order to solve this technical problem, this embodiment discloses the following technical content; A metal welding machine with multi-module assembly and positioning, comprising a machine body 1 placed in a workshop, a welding robot arm 2 and a workbench 3 are installed above the machine body 1, and an adjustment motor 4 is fixedly installed on the side wall of the workbench 3; The workbench 3 is symmetrically provided with a slide groove 5, and a screw rod 6 is rotatably installed on the inner side of the slide groove 5, and two slide seats 7 are symmetrically connected to the outer side of the screw rod 6, and a fixed frame 8 is fixedly installed on the upper end of the slide seat 7, and a slider 9 is fixedly installed on the upper surface of the fixed frame 8, and a movable seat 10 is slidably arranged on the upper surface of the fixed frame 8, and a support plate 13 is movably connected to the upper side of the slider 9 through a connecting rod 12, and a clamping assembly for preliminarily fixing the metal plate is arranged on the end of the support plate 13 away from the workbench 3; The spiral directions of the two ends of the screw rod 6 are opposite, and the two ends of the screw rod 6 are respectively threadedly connected to the two slide seats 7, and the slide seat 7 is slidably connected to the slide groove 5. When the screw rod 6 rotates, the two slide seats 7 are driven to slide along the slide groove 5 at the same time.

[0019] The slider 9 passes through the through slot on the movable seat 10 , and the slider 9 and the movable seat 10 are slidably connected, and a first spring 11 is fixedly connected between the slider 9 and the movable seat 10 , and the movable seat 10 is driven to move synchronously by the first spring 11 during the movement of the slider 9 .

[0020] The clamping assembly includes an adjusting bolt 15 rotatably mounted on the upper surface of the support plate 13, and a pressure plate 16 is threadedly connected to the outer side of the adjusting bolt 15, and a guide column 17 is symmetrically fixedly mounted on the lower surface of the pressure plate 16, and the guide column 17 is slidably connected to the support plate 13, and the pressure plate 16 cooperates with the support plate 13 to clamp and fix the metal sheet during the downward movement of the pressure plate 16.

[0021] The movable seat 10 and the support plate 13 are rotationally connected, and when the metal plates on the two support plates 13 are in contact, the slider 9 slides along the groove opened on the movable seat 10, and the two ends of the connecting rod 12 are rotationally connected to the slider 9 and the support plate 13 respectively, and at the same time, the slider 9 drives the support plate 13 to rotate and adjust through the connecting rod 12.

[0022] By adopting the above technical solution, when it is necessary to weld the metal sheets, the metal sheets are placed on the support plate 13, and then the adjusting bolt 15 is rotated so that the adjusting bolt 15 drives the pressure plate 16 to move downward, so that the pressure plate 16 cooperates with the support plate 13 to clamp and fix the metal sheets, and then the adjusting motor 4 is started so that it drives the screw rod 6 to rotate, so that the slide seat 7 slides along the slide groove 5, and then the welding ends of the two metal sheets are controlled to approach and contact each other. When the welding ends come into contact, the slide seat 7 is continued to be controlled to move according to the welding assembly angle requirements. At this time, the support plate 13 cannot continue to move due to the resistance of the metal sheets. At this time, the slider 9 will slide along the groove body on the movable seat 10 and compress the first spring 11. At this time, the slider 9 will drive the support plate 13 to rotate through the connecting rod 12, so that the support plate 13 drives the metal sheets to rotate and adjust around the contact end, thereby realizing the automatic adjustment of the angle during the splicing of the metal sheets, and effectively improving the assembly welding efficiency.

[0023] Embodiment 2: The technical content disclosed in this embodiment is a further improvement on the above embodiment 1. The existing metal welding machine has a single positioning structure, which makes it easy for position deviation to occur during welding and assembly, thereby affecting the welding accuracy. In order to further solve this technical problem, this embodiment discloses the following technical content, such as Figure 6-Figure 8 As shown; A negative pressure adsorption component is arranged between the movable seat 10 and the supporting plate 13 , and a support plate 14 is fixedly mounted on the lower surface of the supporting plate 13 . A cleaning and cooling component is also arranged on the workbench 3 .

[0024] The negative pressure adsorption component includes a suction cup 18 which is fixedly installed on the support plate 13, and a sealing plug 19 is slidably connected to the inner side of the suction cup 18 through interference, and a pull rod 20 is fixedly connected to the lower end of the sealing plug 19, and the pull rod 20 is telescopically extended through the lower end of the suction cup 18, and a second spring 21 is fixedly connected between the sealing plug 19 and the suction cup 18, a mounting seat 22 is fixedly installed on the movable seat 10, and a movable plate 23 is slidably connected to the inner side of the mounting seat 22, and a pull rope 24 is fixedly connected between the movable plate 23 and the lower end of the pull rod 20, when the support plate 13 rotates, the movable plate 23 pulls the pull rod 20 and the sealing plug 19 to slide on the inner side of the suction cup 18 through the pull rope 24, and the suction cup 18 adsorbs the metal plate on the upper surface of the support plate 13 through negative pressure, and an exhaust plug is also provided on the suction cup 18.

[0025] The negative pressure adsorption component also includes a heat conducting plate 25 fixedly mounted on the outside of the support plate 13, and an air storage bag 26 is fitted on the inner side of the heat conducting plate 25, and an adjusting air bag 27 is fixedly connected between the upper inner wall of the mounting seat 22 and the movable plate 23, and the adjusting air bag 27 and the air storage bag 26 are connected by a conduit 28.

[0026] The cleaning and cooling component includes an air delivery bag 29 arranged on the inner side of the slide 5, and the air delivery bag 29 is connected between the inner wall of the slide 5 and the slide seat 7, and an air head 30 is evenly fixedly installed on the upper surface of the workbench 3, an air delivery pipe is connected between the air delivery bag 29 and the air head 30, and an air intake pipe is also connected to the air delivery bag 29, and both the air delivery pipe and the air intake pipe are provided with a one-way valve structure, and a pressure valve structure is also provided on the air delivery pipe.

[0027] By adopting the above technical solution, as the support plate 13 rotates, the distance from the suction cup 18 to the mounting seat 22 gradually increases, so that the movable plate 23 will pull the lower end of the pull rod 20 through the pull rope 24, so that the sealing plug 19 at the upper end of the pull rod 20 slides on the inner side of the suction cup 18, thereby generating a negative pressure effect between the suction cup 18 and the metal plate, thereby further adsorbing and fixing the metal plate, and effectively improving the adsorption and fixing effect of the metal plate. When welding, the heat conducting plate 25 can use the heat generated by welding to heat the air storage bag 26, so that the internal air pressure of the air storage bag 26 and the regulating air bag 27 increases, and when the regulating air bag 27 expands, it will push the movable plate 23 on the inner side of the mounting seat 22 Move, at this time, the movable plate 23 can further pull the sealing plug 19 through the pull rope 24 to ensure that the suction cup 18 can still maintain the adsorption effect after the welding is heated. At the same time, as the slide 7 moves closer, the air delivery bag 29 can be pressurized. When the welding end is close, the pressure valve on the air delivery pipe opens under the action of pressure, so that the air head 30 can blow air evenly to the welding end, thereby ensuring the cleanliness of the welding end before welding to ensure the subsequent welding effect. When the slide 7 is reset, the air delivery bag 29 will be stretched, so that the air delivery bag 29 inhales air through the air inlet pipe. After the welding is completed, the pressure plate 16 is adjusted in the reverse direction, and the exhaust plug on the suction cup 18 is opened, so that the welded metal workpiece can be removed.

[0028] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal welding machine with multi-module assembly and positioning, comprising a machine body (1) placed in a workshop, a welding robot arm (2) and a workbench (3) being installed above the machine body (1), and an adjusting motor (4) being fixedly installed on the side wall of the workbench (3); It is characterized in that The workbench (3) is symmetrically provided with a slide groove (5), and a screw rod (6) is rotatably installed on the inner side of the slide groove (5), and two slide seats (7) are symmetrically connected to the outer side of the screw rod (6), and a fixed frame (8) is fixedly installed on the upper end of the slide seat (7), and a slider (9) is fixedly installed on the upper surface of the fixed frame (8), and a movable seat (10) is slidably arranged on the upper surface of the fixed frame (8), and a support plate (13) is movably connected to the upper side of the slider (9) through a connecting rod (12), and a clamping component for preliminarily fixing the metal plate is arranged at one end of the support plate (13) away from the workbench (3), and a negative pressure adsorption component is arranged between the movable seat (10) and the support plate (13), and a support plate (14) is also fixedly installed on the lower surface of the support plate (13), and a cleaning and cooling component is also arranged on the workbench (3).

2. A metal welding machine with multi-module assembly and positioning according to claim 1, characterized in that: The two ends of the screw rod (6) have opposite spiral directions, and the two ends of the screw rod (6) are respectively threadedly connected to the two slide seats (7), and the slide seat (7) and the slide groove (5) are slidably connected, and when the screw rod (6) rotates, the two slide seats (7) are driven to slide along the slide groove (5) at the same time.

3. A metal welding machine with multi-module assembly and positioning according to claim 1, characterized in that: The slider (9) passes through a through slot provided on the movable seat (10), and the slider (9) and the movable seat (10) are slidably connected, and a first spring (11) is fixedly connected between the slider (9) and the movable seat (10), and the movable seat (10) is driven to move synchronously by the first spring (11) during the movement of the slider (9).

4. The metal welding machine with multi-module assembly and positioning according to claim 1, characterized in that: The clamping assembly comprises an adjusting bolt (15) rotatably mounted on the upper surface of the support plate (13), and the outer side of the adjusting bolt (15) is threadedly connected to a pressure plate (16), and a guide column (17) is symmetrically fixedly mounted on the lower surface of the pressure plate (16), and the guide column (17) penetrates and is slidably connected to the support plate (13), and the pressure plate (16) cooperates with the support plate (13) to clamp and fix the metal plate when the pressure plate (16) moves downward.

5. The metal welding machine with multi-module assembly and positioning according to claim 1, characterized in that: The movable seat (10) and the support plate (13) are rotatably connected, and when the metal plates on the two support plates (13) are in contact, the slider (9) slides along the groove body provided on the movable seat (10), and the two ends of the connecting rod (12) are rotatably connected to the slider (9) and the support plate (13), respectively, and at the same time, the slider (9) drives the support plate (13) to perform rotation adjustment through the connecting rod (12).

6. The metal welding machine with multi-module assembly and positioning according to claim 1, characterized in that: The negative pressure adsorption assembly comprises a suction cup (18) which is fixedly mounted on the support plate (13), and a sealing plug (19) is slidably connected to the inner side of the suction cup (18), and a pull rod (20) is fixedly connected to the lower end of the sealing plug (19), and the pull rod (20) is telescopically connected to the lower end of the suction cup (18), and a second spring (21) is fixedly connected between the sealing plug (19) and the suction cup (18), and a mounting seat (22) is fixedly mounted on the movable seat (10). , and a movable plate (23) is slidably connected to the inner side of the mounting seat (22), and a pull rope (24) is fixedly connected between the movable plate (23) and the lower end of the pull rod (20), and when the support plate (13) rotates, the movable plate (23) pulls the pull rod (20) and the sealing plug (19) to slide on the inner side of the suction cup (18) through the pull rope (24), and the suction cup (18) absorbs the metal plate on the upper surface of the support plate (13) through negative pressure, and an exhaust plug is also provided on the suction cup (18).

7. The metal welding machine with multi-module assembly and positioning according to claim 6, characterized in that: The negative pressure adsorption assembly further comprises a heat conducting plate (25) fixedly mounted on the outside of the support plate (13), an air storage bag (26) being fitted on the inside of the heat conducting plate (25), and an adjusting air bag (27) being fixedly connected between the inner wall of the upper end of the mounting seat (22) and the movable plate (23), and the adjusting air bag (27) and the air storage bag (26) being connected via a conduit (28).

8. The metal welding machine with multi-module assembly and positioning according to claim 1, characterized in that: The cleaning and cooling component comprises an air delivery sac (29) arranged inside the slide groove (5), and the air delivery sac (29) is connected between the inner wall of the slide groove (5) and the slide seat (7), and an air head (30) is evenly fixedly installed on the upper surface of the workbench (3), an air delivery pipe is connected between the air delivery sac (29) and the air head (30), and an air intake pipe is also connected to the air delivery sac (29), and both the air delivery pipe and the air intake pipe are provided with a one-way valve structure, and a pressure valve structure is also provided on the air delivery pipe.

9. A welding method for a metal welding machine with multi-module assembly and positioning, characterized in that: The following steps are involved: S1. placing the metal sheet to be welded on the upper surface of the support plate (13), and rotating the adjusting bolt (15) so that the pressing plate (16) cooperates with the support plate (13) to clamp and fix the metal sheet; S2, start the adjustment motor (4) to drive the screw (6) to rotate, thereby driving the slide (7) to slide along the slide groove (5), at which time the slide (7) will drive the movable seat (10) and the support plate (13) to move synchronously, and when the welding ends of the two plates are in contact, continue to control the two slides (7) to slide closer, at which time the slider (9) will be slidably connected with the movable seat (10), thereby driving the support plate (13) to rotate, thereby adjusting the welding angle; S3. During the rotation of the support plate (13), the movable plate (23) pulls the pull rod (20) through the pull rope (24), so that the pull rod (20) pulls the sealing plug (19) to slide in the suction cup (18), so that the suction cup (18) can adsorb and fix the metal plate on the support plate (13), further improving the positioning stability of the plate. During the welding process, the regulating airbag (27) will expand due to heat, thereby pushing the movable plate (23) to move downward, thereby further pulling the sealing plug (19) to move through the pull rope (24), thereby ensuring the adsorption effect of the suction cup (18); S4. During the movement of the slide seat (7), the air delivery bag (29) is squeezed. When the welding ends of the two metal plates are close to each other, the pressure valve in the air delivery pipe is opened, so that the gas in the air delivery bag (29) can be quickly sprayed toward the welding ends of the metal plates, thereby achieving automatic cleaning and improving the subsequent welding effect.

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