A welding device and welding method for sheet metal

Abstract

The application discloses a metal plate welding device and a welding method, and belongs to the technical field of welding. The metal plate welding device comprises a base, two symmetrical first baffles are fixedly connected to the upper side of the base, a base plate is arranged between the two first baffles, a top plate is arranged on the upper side of the first baffle, a welding piece is arranged on the top plate, a metal plate is placed on the upper side of the base plate, two symmetrical first sliding grooves are formed in the upper side of the base plate, a second baffle is arranged on one side of one of the first baffles, two first sliding blocks are fixedly connected to the lower side of the second baffle, the first sliding blocks are slidably connected to the first sliding grooves, a first clamping assembly and a second clamping assembly are arranged on the side of the other first baffle, the first clamping assembly is arranged on the upper side of the metal plate, the second clamping assembly is arranged on the lower side of the metal plate, and the first clamping assembly and the second clamping assembly jointly apply clamping force to the metal plate to avoid shaking.

Description

Technical Field

[0001] This invention belongs to the field of welding technology, and particularly relates to a welding device and welding method for metal plates. Background Technology

[0002] Metal sheets are flat products made of metallic materials, typically with a certain thickness and area, used in various industrial and construction applications. These sheets can be made of various metals, including but not limited to steel, aluminum, copper, titanium, etc. They can be processed by cold rolling, hot rolling, forging, or other processing techniques to adjust their physical and chemical properties. Metal sheets are widely used in building structures, automobile manufacturing, shipbuilding, aerospace, electrical engineering, and other manufacturing fields due to their strength, durability, plasticity, and electrical and thermal conductivity.

[0003] In the production, processing and use of sheet metal, it is often necessary to weld two sheet metals together to obtain different types of sheet metal for easier use.

[0004] However, most existing metal sheet welding methods rely on manual operation. During manual welding, the operator's hands may come into contact with the metal sheet, causing the metal sheet to shift in position. This directly affects the welding result and, consequently, the welding quality. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention provides a welding device and welding method for metal plates, which has the advantage of preventing the position of the metal plate from changing, and solves the problems existing in the prior art.

[0006] The present invention is implemented as follows: a welding device for metal plates includes a base, two symmetrical first baffles are fixedly connected to the upper side of the base, a base plate is installed between the two first baffles, a top plate is provided on the upper side of the first baffles, a welding component is installed on the top plate, and a metal plate is placed on the upper side of the base plate. Two symmetrical first slides are provided on the upper side of the substrate; One of the first baffles has a second baffle on one side, and two first sliders are fixedly connected to the lower side of the second baffle. The first sliders are slidably connected in the first slide rail. A first clamping assembly and a second clamping assembly are installed on one side of the other first baffle. The first clamping assembly is located on the upper side of the metal plate, and the second clamping assembly is located on the lower side of the metal plate.

[0007] As a preferred embodiment of the present invention, the first clamping assembly includes a first clamping fixing plate, one side of the first clamping fixing plate is fixedly connected to the first baffle, and the first clamping fixing plate is located on the upper side of the metal plate; The first clamping and fixing plate has a first cavity, and a first connecting plate is slidably connected in the first cavity. The bottom of the first connecting plate is made of rubber material.

[0008] As a preferred embodiment of the present invention, the second clamping assembly includes a second clamping fixing plate, one side of which is fixedly connected to the first baffle, and the second clamping fixing plate is located on the lower side of the metal plate; The second clamping and fixing plate has a second cavity, and the third cavity has a second connecting plate slidably connected thereto. The upper part of the second connecting plate is made of rubber material.

[0009] As a preferred embodiment of the present invention, the first baffle is provided with a plurality of first circular holes, and a plurality of first circular rods are fixedly connected to the lower side of the top plate, the first circular rods being able to be inserted into the first circular holes.

[0010] As a preferred embodiment of the present invention, a liquid storage chamber is provided in the top plate, and a first liquid flow pipe is provided in the first round rod, the first liquid flow pipe being connected to the liquid storage chamber; The first liquid flow channel can communicate with the first circular hole, and both the first cavity and the second cavity are communicated with the first circular hole; The first connecting plate has a second liquid flow channel, which is connected to the first cavity. A third liquid flow pipe is provided inside the second connecting plate, and the third liquid flow pipe is interconnected with the second cavity; A water outlet is provided on one side of the first connecting plate, and the water outlet is connected to the second liquid flow pipe.

[0011] In a preferred embodiment of the present invention, the welded component includes a first electric slider, a second slide rail is provided in the top plate, the first electric slider is slidably connected in the second slide rail, a telescopic rod is installed on the lower side of the first electric slider, and a welding head is installed at one end of the telescopic rod.

[0012] As a preferred embodiment of the present invention, two symmetrical first rotating shafts are installed on the lower side of the substrate. One end of each first rotating shaft can extend to the outside of one of the first baffles. A drive wheel is fixedly connected to the outer surface of each first rotating shaft. A motor is provided at one end of each first rotating shaft. The motor is located outside the first baffle, and the output end of the motor is fixedly connected to the first rotating shaft.

[0013] As a preferred embodiment of the present invention, a slide rail is installed on one side of the first baffle, and a second electric slider is slidably connected in the slide rail. A first connecting rod is fixedly connected between the second electric slider and the top plate.

[0014] A method for welding metal sheets, using the aforementioned metal sheet welding apparatus, includes the following steps: Step S1: Position the two metal plates on the substrate and place them between the first clamping assembly and the second clamping assembly; Step S2: Push the second baffle to move within the first slide rail via the first slider, so that the metal plate moves synchronously to the appropriate position to ensure the consistency of length or width, in preparation for welding; Step S3: After the second baffle moves to the appropriate position, a clamping force is applied to the metal plate to prevent shaking during welding. Step S4: When the second baffle approaches, one side of the metal plate contacts the second baffle, and the other side contacts the first baffle. In step S5, the first clamping component contacts the upper surface of the metal plate, and the second clamping component contacts the lower surface of the metal plate, together applying a clamping force.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Before welding two metal plates, the plates must first be positioned on the substrate and placed between the first and second clamping assemblies. Next, by pushing the second baffle along the first slider within the first track, the metal plates can be simultaneously adjusted to the appropriate position, ensuring their length or width is aligned, thus preparing for the welding process. Once the second baffle is in the correct position, it applies a clamping force to the metal plates to prevent any movement during welding.

[0016] As the second baffle approaches, one side of the metal plate contacts the second baffle, while the other side contacts the first baffle. Subsequently, the first clamping assembly contacts the upper surface of the metal plate, and the second clamping assembly contacts the lower surface of the metal plate. Both components work together to apply clamping force, ensuring the metal plate remains stable during welding, preventing wobbling, reducing welding defects caused by wobbling, and thus improving the overall quality of the weld. Attached Figure Description

[0017] Figure 1 This is a first-view perspective three-dimensional structural diagram of the welding device for metal plates provided in an embodiment of the present invention; Figure 2 This is a front-view planar structural schematic diagram of the welding device for metal plates provided in an embodiment of the present invention; Figure 3 This invention provides a welding apparatus for metal sheets. Figure 2 A magnified planar structural diagram of part A in the middle section; Figure 4 This is a third-view perspective three-dimensional structural diagram of the metal sheet welding device provided in an embodiment of the present invention, showing the removal of the top plate; Figure 5This invention provides a welding apparatus for metal sheets. Figure 4 A magnified three-dimensional structural diagram of part B in the middle section; Figure 6 This is a schematic diagram of the internal cross-sectional planar structure of the metal sheet welding device provided in an embodiment of the present invention from the main view perspective; Figure 7 This invention provides a welding apparatus for metal sheets. Figure 6 A magnified planar structural diagram of part C in the middle section; Figure 8 This is a three-dimensional cross-sectional view of the welding device for metal plates provided in an embodiment of the present invention; Figure 9 This invention provides a welding apparatus for metal sheets. Figure 8 A magnified three-dimensional structural diagram of part D in the middle section.

[0018] In the diagram: 1. Base; 2. First baffle; 3. Base plate; 4. Top plate; 5. Metal plate; 6. First slide rail; 7. Second baffle; 8. First slider; 9. First clamping and fixing plate; 10. First connecting plate; 11. Second clamping and fixing plate; 12. Second connecting plate; 13. First circular hole; 14. First circular rod; 15. Liquid storage chamber; 16. First liquid flow pipe; 17. Second liquid flow pipe; 18. Third liquid flow pipe; 19. Water outlet; 20. First electric slider; 21. Second slide rail; 22. Telescopic rod; 23. Welding head; 24. First rotating shaft; 25. Drive wheel; 26. Motor; 27. Slide rail; 28. Second electric slider; 29. ​​First connecting rod. Detailed Implementation

[0019] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0020] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0021] Please see Figures 1 to 9This invention provides a welding device for metal plates, comprising a base 1, with two symmetrical first baffles 2 fixedly connected to the upper side of the base 1, a base plate 3 installed between the two first baffles 2, a top plate 4 provided on the upper side of the first baffles 2, and welding components installed on the top plate 4. The device is characterized in that: a metal plate 5 is placed on the upper side of the base plate 3; two symmetrical first slides 6 are provided on the upper side of the base plate 3; a second baffle 7 is provided on one side of one of the first baffles 2, and two first sliders 8 are fixedly connected to the lower side of the second baffle 7, the first sliders 8 being slidably connected within the first slides 6; a first clamping assembly and a second clamping assembly are installed on one side of the other first baffle 2, the first clamping assembly being located on the upper side of the metal plate 5, and the second clamping assembly being located on the lower side of the metal plate 5.

[0022] Using the above scheme: In use, when two metal plates 5 need to be welded, the two metal plates 5 are first placed on the substrate 3 and positioned between the first clamping assembly and the second clamping assembly. The second baffle 7 is pushed to move within the first slide rail 6 via the first slider 8, so that the metal plates 5 move synchronously to the appropriate position to ensure consistency in length or width, thus preparing for welding. After the second baffle 7 moves to the appropriate position, it applies a clamping force to the metal plates 5 to prevent shaking during welding.

[0023] When the second baffle 7 approaches, one side of the metal plate 5 contacts the second baffle 7, and the other side contacts the first baffle 2. Then, the first clamping assembly contacts the upper surface of the metal plate 5, and the second clamping assembly contacts the lower surface of the metal plate 5, jointly applying clamping force to ensure that the position of the metal plate 5 is stable during the welding process, avoid shaking, reduce welding defects caused by shaking, and thus improve welding quality.

[0024] It should be noted that: First, the second baffle 7 can be moved by using an electric push rod, or other methods can be used to move the second baffle 7.

[0025] Furthermore, the first clamping assembly includes a first clamping fixing plate 9, one side of which is fixedly connected to the first baffle 2, and the first clamping fixing plate 9 is located on the upper side of the metal plate 5; a first cavity is provided in the first clamping fixing plate 9, and a first connecting plate 10 is slidably connected in the first cavity, and the bottom of the first connecting plate 10 is made of rubber material.

[0026] Using the above solution: When the metal plate 5 is placed between the two clamping components, if the upper surface of the metal plate 5 can contact the lower surface of the first clamping fixing plate 9, then the first clamping fixing plate 9 will apply a clamping force to prevent the metal plate 5 from moving.

[0027] If the upper surface of the metal plate 5 cannot contact the first clamping and fixing plate 9, the first connecting plate 10 will slide along the first cavity and gradually extend until it reaches the appropriate position. At this time, since the bottom of the first connecting plate 10 is made of rubber material, the bottom of the first connecting plate 10 will deform, changing from a contracted state to a stretched state, and finally contact the upper surface of the metal plate 5, thereby fixing the metal plate 5. It can effectively adapt to metal plates 5 of different thicknesses.

[0028] It should be noted that: First, both the outer surfaces of the first clamping plate 9 and the first connecting plate 10 are coated with a high-temperature resistant protective coating. Second, a spring can be installed in the first cavity, with one end of the spring connected to the first connecting plate 10 and the other end connected to the inner wall of the first clamping plate 9. When the first connecting plate 10 extends, it can be retracted by the spring.

[0029] Furthermore, the second clamping assembly includes a second clamping fixing plate 11, one side of which is fixedly connected to the first baffle 2, and the second clamping fixing plate 11 is located on the lower side of the metal plate 5; a second cavity is provided in the second clamping fixing plate 11, and a second connecting plate 12 is slidably connected in the second cavity, the upper part of the second connecting plate 12 being made of rubber material.

[0030] Using the above solution: When the metal plate 5 is placed between the two clamping components, if the lower surface of the metal plate 5 can contact the upper surface of the second clamping fixing plate 11, the second clamping fixing plate 11 will apply a clamping force to prevent the metal plate 5 from moving.

[0031] If the lower surface of the metal plate 5 cannot contact the second clamping and fixing plate 11, the second connecting plate 12 will slide along the second cavity and gradually extend until it reaches the appropriate position. At this time, since the upper part of the second connecting plate 12 is made of rubber material, its upper part will deform, changing from a contracted state to a stretched state, and finally contact the lower surface of the metal plate 5, thereby achieving the fixation of the metal plate 5.

[0032] It should be noted that: First, the outer surfaces of the second clamping and fixing plate 11 and the second connecting plate 12 are also coated with a high-temperature resistant protective layer. Second, a spring can also be installed in the second cavity, with one end of the spring connected to the second connecting plate 12 and the other end connected to the inner wall of the second clamping and fixing plate 11, serving the same function as described above.

[0033] Furthermore, the first baffle 2 is provided with a plurality of first round holes 13, and the top plate 4 is fixedly connected with a plurality of first round rods 14, which can be inserted into the first round holes 13.

[0034] Furthermore, a liquid storage chamber 15 is provided in the top plate 4, and a first liquid flow pipe 16 is provided in the first round rod 14, which is connected to the liquid storage chamber 15; the first liquid flow pipe 16 is interconnected with the first round hole 13, and both the first cavity and the second cavity are interconnected with the first round hole 13; a second liquid flow pipe 17 is provided in the first connecting plate 10, which is interconnected with the first cavity; a third liquid flow pipe 18 is provided in the second connecting plate 12, which is interconnected with the second cavity; a water outlet 19 is provided on one side of the first connecting plate 10, which is interconnected with the second liquid flow pipe 17.

[0035] Using the above scheme: When the upper surface of the metal plate 5 needs to be cleaned, liquid flows out of the liquid storage chamber 15. At this time, the liquid flows out in a fixed amount. The liquid first flows into the bottom of the first round hole 13 through the first liquid pipe, and then enters the second cavity. Since the first cavity is higher than the second cavity, the liquid naturally flows to the second cavity. The third pipe on the second connecting plate 12 is located above it. As the top plate 4 drives the first round rod 14 to descend, pressure is generated, which pushes the liquid, causing the liquid to push the second connecting plate 12 to move and extend out of the second cavity.

[0036] To allow liquid to enter the third liquid flow channel 18, the liquid storage chamber 15 needs to output liquid to the first circular hole 13 again. At this time, the liquid in the first circular hole 13 is full. Due to the increase in liquid, the liquid in the second cavity can enter the third liquid flow channel 18.

[0037] The liquid in the first circular hole 13 can also enter the first cavity. As the first circular rod 14 descends, it squeezes the liquid, thereby pushing the first connecting plate 10 to move and extend out of the first cavity. When the first connecting plate 10 and the second connecting plate 12 reach the preset position, the first circular rod 14 continues to descend, generating pressure, which causes the liquid in the second liquid flow pipe 17 and the third liquid flow pipe 18 to squeeze the first connecting plate 10 and the second connecting plate 12 respectively, causing the rubber-surfaced areas of the first connecting plate 10 and the second connecting plate 12 to deform and sink, thereby clamping the metal plate 5.

[0038] Since the water outlet 19 is connected to the second liquid flow pipe 17, the liquid is sprayed onto the metal plate 5 through the water outlet 19 to clean impurities and ensure welding quality.

[0039] It should be noted that: First, a one-way valve can be installed in the first liquid flow pipe 16 to control the outflow of liquid. Second, the liquid in the storage chamber 15 is clean water. If there are oxides or oil stains on the surface of the metal plate 5, a cleaning agent can be used to remove them; the specific method can be adjusted according to actual needs. Third, if a chemical agent is used to remove impurities, a protective coating should be applied to all areas through which liquid flows. Fourth, after cleaning the surface of the metal plate 5 with a chemical agent, immediately rinse it with clean water and dry it. Fifth, a baffle can be installed in the second liquid flow pipe 17 near the outlet hole 19 to control the liquid flowing out of the outlet hole 19. Sixth, when the first round rod 14 moves upward, the liquid is no longer under pressure, and the first connecting plate 10 and the second connecting plate 12 no longer contact the metal plate 5. Seventh, when the liquid in the first round hole 13 needs to be discharged, an external pump can be connected to draw the liquid out.

[0040] Furthermore, the welded component includes a first electric slider 20, a second slide rail 21 is provided in the top plate 4, the first electric slider 20 is slidably connected in the second slide rail 21, a telescopic rod 22 is installed on the lower side of the first electric slider 20, and a welding head 23 is installed at one end of the telescopic rod 22.

[0041] Using the above scheme: In use, when welding metal plates 5 is required, the top plate 4 descends, causing the welding head 23 to gradually approach the area of ​​the metal plate 5 to be welded. When the descending height of the top plate 4 is insufficient for the welding head 23 to directly contact the metal plate 5, the telescopic rod 22 can be pulled to further adjust the position of the welding head 23. Subsequently, the first electric slider 20 drives the telescopic rod 22 to slide within the second slide rail 21, and the welding head 23 completes the welding of the two metal plates 5 during the sliding process.

[0042] It should be noted that the telescopic rod 22 can be extended or retracted through a threaded connection, and the specific extension or retraction can be adjusted according to actual needs.

[0043] Furthermore, two symmetrical first rotating shafts 24 are installed on the lower side of the substrate 3. One end of each first rotating shaft 24 can extend to the outside of one of the first baffles 2. A drive wheel 25 is fixedly connected to the outer surface of each first rotating shaft 24. A motor 26 is provided at one end of each first rotating shaft 24. The motor 26 is located outside the first baffle 2, and the output end of the motor 26 is fixedly connected to the first rotating shaft 24.

[0044] Using the above scheme: When the metal plate 5 needs to be placed on the substrate 3, the first metal plate 5 is first placed from a preset entrance and made to contact a drive wheel 25. Then, the output end of the first motor 26 rotates clockwise, driving the first rotating shaft 24 connected to it to rotate, thereby causing the contacting drive wheel 25 to rotate synchronously. The rotation of the drive wheel 25 pushes the metal plate 5 to move inward. At the same time, the second metal plate 5 can be placed from another preset entrance and made to contact another drive wheel 25. At this time, the output end of the second motor 26 rotates counterclockwise, driving another first rotating shaft 24 to rotate, causing the other drive wheel 25 to rotate synchronously, pushing the second metal plate 5 to move inward synchronously. In this way, the two drive wheels 25 act on the two metal plates 5 respectively, making the metal plates 5 move closer to each other.

[0045] It should be noted that the metal plate 5 can be placed on the substrate 3 through the gap between the two first baffles 2.

[0046] Furthermore, a slide rail 27 is installed on one side of the first baffle 2, and a second electric slider 28 is slidably connected in the slide rail 27. A first connecting rod 29 is fixedly connected between the second electric slider 28 and the top plate 4.

[0047] Using the above scheme: When the top plate 4 needs to be lowered, the second electric slider 28 drives the top plate 4 to move downward within the slide rail 27 through the first connecting rod 29, thereby realizing the lowering of the top plate 4.

[0048] A method for welding metal sheets, using the aforementioned metal sheet welding apparatus, includes the following steps: Step S1: Position the two metal plates 5 on the substrate 3 and place them between the first clamping assembly and the second clamping assembly. Step S2: Push the second baffle 7 through the first slider 8 to move within the first slide rail 6, so that the metal plate 5 moves synchronously to the appropriate position to ensure the consistency of length or width, in preparation for welding. Step S3: After the second baffle 7 moves to the appropriate position, it applies a clamping force to the metal plate 5 to prevent shaking during welding. Step S4: When the second baffle 7 approaches, one side of the metal plate 5 contacts the second baffle 7, and the other side contacts the first baffle 2. In step S5, the first clamping component contacts the upper surface of the metal plate 5, and the second clamping component contacts the lower surface of the metal plate 5, together applying a clamping force.

[0049] Working principle of the invention: Before welding the two metal plates 5, the metal plates must first be positioned on the substrate 3 and placed between the first clamping assembly and the second clamping assembly. Next, the second baffle 7 is moved through the first slider 8 in the first slide rail 6 to ensure that the metal plates 5 move synchronously to the appropriate position to maintain consistency in length or width, preparing them for the welding process. Once the second baffle 7 is in the appropriate position, it applies a clamping force to the metal plates 5 to prevent any shaking during the welding process.

[0050] As the second baffle 7 approaches, one side of the metal plate 5 will contact the second baffle 7, while the other side will contact the first baffle 2. Subsequently, the first clamping assembly will contact the upper surface of the metal plate 5, and the second clamping assembly will contact the lower surface of the metal plate 5, jointly applying a clamping force.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding device for metal plates, comprising a base (1), wherein two symmetrical first baffles (2) are fixedly connected to the upper side of the base (1), a base plate (3) is installed between the two first baffles (2), a top plate (4) is provided on the upper side of the first baffles (2), and welding components are installed on the top plate (4), characterized in that: A metal plate (5) is placed on the upper side of the substrate (3); The substrate (3) has two symmetrical first slides (6) on its upper side; One of the first baffles (2) has a second baffle (7) on one side, and two first sliders (8) are fixedly connected to the lower side of the second baffle (7). The first sliders (8) are slidably connected in the first slide rail (6). A first clamping assembly and a second clamping assembly are installed on one side of the other first baffle (2). The first clamping assembly is located on the upper side of the metal plate (5), and the second clamping assembly is located on the lower side of the metal plate (5).

2. The welding apparatus for metal plates as described in claim 1, characterized in that: The first clamping assembly includes a first clamping fixing plate (9), one side of which is fixedly connected to the first baffle (2), and the first clamping fixing plate (9) is located on the upper side of the metal plate (5); The first clamping and fixing plate (9) has a first cavity, and a first connecting plate (10) is slidably connected in the first cavity. The bottom of the first connecting plate (10) is made of rubber material.

3. The welding apparatus for metal plates as described in claim 2, characterized in that: The second clamping assembly includes a second clamping fixing plate (11), one side of which is fixedly connected to the first baffle (2), and the second clamping fixing plate (11) is located on the lower side of the metal plate (5); The second clamping and fixing plate (11) has a second cavity, and a second connecting plate (12) is slidably connected in the second cavity. The upper part of the second connecting plate (12) is made of rubber material.

4. The welding apparatus for metal plates as described in claim 3, characterized in that: The first baffle (2) is provided with multiple first round holes (13), and multiple first round rods (14) are fixedly connected to the lower side of the top plate (4). The first round rods (14) can be inserted into the first round holes (13).

5. The welding apparatus for metal plates as described in claim 4, characterized in that: The top plate (4) is provided with a liquid storage chamber (15), and the first round rod (14) is provided with a first liquid flow pipe (16), which is connected to the liquid storage chamber (15). The first liquid flow channel (16) can communicate with the first circular hole (13), and the first cavity and the second cavity are both communicated with the first circular hole (13); A second liquid flow pipe (17) is provided inside the first connecting plate (10), and the second liquid flow pipe (17) is connected to the first cavity; A third liquid flow pipe (18) is provided inside the second connecting plate (12), and the third liquid flow pipe (18) is connected to the second cavity; A water outlet (19) is provided on one side of the first connecting plate (10), and the water outlet (19) is connected to the second liquid flow pipe (17).

6. The welding apparatus for metal plates as described in claim 1, characterized in that: The welded component includes a first electric slider (20), and a second slide rail (21) is provided in the top plate (4). The first electric slider (20) is slidably connected in the second slide rail (21). A telescopic rod (22) is installed on the lower side of the first electric slider (20), and a welding head (23) is installed at one end of the telescopic rod (22).

7. The welding apparatus for metal plates as described in claim 1, characterized in that: Two symmetrical first rotating shafts (24) are installed on the lower side of the substrate (3). One end of each first rotating shaft (24) can extend to the outside of one of the first baffles (2). A drive wheel (25) is fixedly connected to the outer surface of each first rotating shaft (24). A motor (26) is provided at one end of each first rotating shaft (24). The motor (26) is located outside the first baffle (2). The output end of the motor (26) is fixedly connected to the first rotating shaft (24).

8. The welding apparatus for metal plates as described in claim 2, characterized in that: Each side of the first baffle (2) is equipped with a slide rail (27), and each slide rail (27) is slidably connected with a second electric slider (28). The second electric slider (28) and the top plate (4) are fixedly connected with a first connecting rod (29).

9. A method for welding metal sheets, characterized in that, The welding apparatus for metal sheets according to any one of claims 1-8 includes the following steps: Step S1: Position the two metal plates (5) on the substrate (3) and place them between the first clamping assembly and the second clamping assembly; Step S2: Push the second baffle (7) through the first slider (8) and move it in the first slide (6) so that the metal plate (5) moves synchronously to the appropriate position to ensure the consistency of length or width and prepare for welding. Step S3: After the second baffle (7) moves to the appropriate position, a clamping force is applied to the metal plate (5) to prevent shaking during welding. Step S4: When the second baffle (7) approaches, one side of the metal plate (5) contacts the second baffle (7), and the other side contacts the first baffle (2); In step S5, the first clamping component contacts the upper surface of the metal plate (5), and the second clamping component contacts the lower surface of the metal plate (5) to jointly apply clamping force.

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