Test plate welding apparatus and test plate welding method

Abstract

The present application belongs to the technical field of welding device, and discloses a test plate welding device and a test plate welding method. The test plate welding device comprises a test plate fixing unit and a welding unit. The test plate fixing unit comprises a support frame and a fixing mechanism. The upper end surface of the support frame is provided with a through opening, and the fixing mechanism is arranged on the support frame. In the Z direction, the spacing between the fixing mechanism and the upper end surface of the support frame is adjustable, and the test plate can be clamped between the fixing mechanism and the upper end surface of the support frame. The welding unit comprises a moving guide rail, a welding trolley, a supporting mechanism and a welding gun. The moving guide rail is arranged along the Y direction and is spaced apart from the support frame in the X direction. The welding trolley is connected to the moving guide rail and can move along the moving guide rail. The supporting mechanism is adjustably connected to the welding trolley in the Z direction and the X direction. The welding gun is connected to the welding trolley and extends towards the welding position of the test plate. The supporting mechanism is supported below the welding gun in the Z direction. The test plate welding device is suitable for test plates of various specifications and effectively improves the welding effect and efficiency.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to a test plate welding device and a test plate welding method. Background Technology

[0002] Currently, when welding two test plates, after beveling the two test plates, it is necessary to use a welding clamp to fix the test plates, then place a flat backing on the reverse side of the bevel and perform spot welding, and then use manual welding to form the weld.

[0003] The aforementioned welding plates are not suitable for fixing test plates of different specifications, and the aforementioned manual welding method is technically outdated, the welding effect and quality cannot be guaranteed, and the labor cost is high.

[0004] Therefore, there is an urgent need for a test plate welding device and a test plate welding method to solve the above problems. Summary of the Invention

[0005] According to one aspect of the present invention, the object is to provide a test plate welding apparatus that is suitable for fixing test plates of various specifications and can effectively improve welding effect and efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution: Test plate welding apparatus, including: The test plate fixing unit includes a support frame and a fixing mechanism. A portion of the upper end face of the support frame is provided with an opening. The fixing mechanism is disposed inside the support frame. In the Z direction, the distance between the fixing mechanism and the upper end face of the support frame is adjustable, and the test plate can be clamped between the fixing mechanism and the upper end face of the support frame. The welding unit includes a moving guide rail, a welding carriage, a support mechanism, and a welding torch. The moving guide rail is arranged along the Y direction and spaced apart from the support frame in the X direction. The welding carriage is connected to the moving guide rail and can move along it. The support mechanism is adjustablely connected to the welding carriage in the Z and X directions. The welding torch is connected to the welding carriage and extends toward the welding position of the test plate. The support mechanism supports and connects to the welding torch below in the Z direction. The X, Y, and Z directions are perpendicular to each other.

[0007] As a preferred embodiment of the test plate welding device provided by the present invention, the support frame includes a positioning structure and an installation structure. There are at least two positioning structures, which are spaced apart from each other in the X direction. Each positioning structure includes a side positioning part and a top positioning part that are connected at an angle to each other. The opening is formed between the two top positioning parts. The installation structure is disposed between the two oppositely disposed side positioning parts. The fixing mechanism is disposed on the installation structure with an adjustable distance from the top positioning part in the Z direction. The test plate can be clamped between the fixing mechanism and the top positioning part.

[0008] As a preferred embodiment of the test plate welding device provided by the present invention, the fixing mechanism includes a plurality of support piles arranged in a rectangular array, each of the support piles passing through the mounting structure and being fixedly connected to the mounting structure by nuts, and the support piles can support the test plate below.

[0009] As a preferred embodiment of the test plate welding device provided by the present invention, the test plate fixing unit further includes a liner structure, which is arranged corresponding to the welding position of the test plate and sandwiched between the test plate and the fixing mechanism.

[0010] As a preferred embodiment of the test plate welding device provided by the present invention, the support mechanism includes a connecting structure, an extension structure and a telescopic structure. The connecting structure has a first elongated hole, the long axis of the first elongated hole is parallel to the Z direction, a first connecting bolt passes through the first elongated hole and can be fixed to the welding trolley. The first connecting bolt can also be adjusted and fixed in position along the long axis of the first elongated hole. The extension structure is fixed to the connecting structure and extends along the X direction. The telescopic structure is inserted into the extension structure and has a second elongated hole. The long axis of the second elongated hole is parallel to the X direction. The second connecting bolt passes through the second elongated hole and can be fixed to the extension structure. The second connecting bolt can also be adjusted and fixed along the long axis of the second elongated hole.

[0011] As a preferred embodiment of the test plate welding device provided by the present invention, a welding torch support is provided on the extension structure and / or the telescopic structure, and the welding torch support is supported below the welding torch in the Z direction.

[0012] As a preferred embodiment of the test plate welding device provided by the present invention, the telescopic structure is provided with a positioning hole, and the welding head of the welding gun passes through the positioning hole and extends toward the welding position of the test plate.

[0013] As a preferred embodiment of the test plate welding device provided by the present invention, the welding unit further includes anti-roll pulleys and swaying structures. There are at least two swaying structures, which are spaced apart from each other and are both connected to the welding trolley. The anti-roll pulleys are corresponding to and connected to the swaying structures, and are slidably connected to both sides of the moving guide rail in the X direction.

[0014] As a preferred embodiment of the test plate welding device provided by the present invention, the welding unit further includes a magnetic connecting seat, the magnetic connecting seat and the support frame being spaced apart from each other in the X direction, and the movable guide rail being magnetically connected to the magnetic connecting seat; and / or, The test plate welding device also includes a device base, and the test plate fixing unit and the welding unit are both disposed on the device base.

[0015] According to another aspect of the present invention, an object is to provide a test plate welding method, said test plate welding method being based on a test plate welding apparatus as described in any of the above embodiments, for welding at least two said test plates; said test plate welding method comprising: S10. Install at least two of the test plates between the upper end face of the support frame and the fixing mechanism; S20. Adjust the position of the support mechanism in the X and Z directions so that the welding head of the welding gun is directly opposite the welding position between the two test plates. S30. Start welding and move the welding trolley at a constant speed along the moving guide rail; S40. After welding is completed and the material cools naturally, the fixing mechanism is disassembled, and the test plate is removed from the support frame.

[0016] The beneficial effects of this invention are: The test plate welding device provided by this invention includes a test plate fixing unit and a welding unit. The test plate fixing unit includes a support frame and a fixing mechanism. A portion of the upper end face of the support frame is provided with an opening, and the fixing mechanism is disposed within the support frame. In the Z direction, the distance between the fixing mechanism and the upper end face of the support frame is adjustable, allowing the test plate to be clamped between the fixing mechanism and the upper end face of the support frame. Through the aforementioned support frame and fixing mechanism, reliable fixing of the test plate can be achieved. Furthermore, since the distance between the fixing mechanism and the upper end face of the support frame is adjustable, it can be adapted to clamping and fixing test plates of various thicknesses.

[0017] The welding unit includes a moving guide rail, a welding carriage, a support mechanism, and a welding torch. The moving guide rail is positioned along the Y-direction and spaced apart from the support frame in the X-direction. The welding carriage is connected to the moving guide rail and can move along it. The support mechanism is adjustablely connected to the welding carriage in both the Z and X directions. The welding torch is connected to the welding carriage and extends towards the welding position on the test plate. The support mechanism supports and connects to the bottom of the welding torch in the Z-direction. The X, Y, and Z directions are mutually perpendicular. The moving guide rail guides the movement of the welding carriage, ensuring the straightness of the weld formed by the welding torch and guaranteeing the welding effect. The adjustable position of the support mechanism in the Z and X directions allows for adjustment according to different welding requirements and different test plates, ensuring the feasibility of the welding process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0019] Figure 1 This is a front view of the test plate welding device provided in an embodiment of the present invention; Figure 2 This is a front view of a portion of the structure of the test plate welding device provided in an embodiment of the present invention; Figure 3 This is a top view of the test plate welding device provided in an embodiment of the present invention; Figure 4 This is a top view of the connection structure and extension structure of the support mechanism provided in the embodiment of the present invention; Figure 5 This is a top view of the telescopic structure of the support mechanism provided in an embodiment of the present invention; Figure 6 This is a cross-sectional schematic diagram of the support mechanism provided in an embodiment of the present invention; Figure 7 This is a side view of the swaying structure provided in an embodiment of the present invention.

[0020] In the picture: 10. Test plate; 20. Arc-starting plate; 100. Test plate fixing unit; 110. Support frame; 111. Through port; 112. Mounting structure; 113. Side positioning part; 114. Top positioning part; 120. Fixing mechanism; 121. Support pile; 122. Nut; 130. Pad structure; 200. Welding unit; 210. Moving guide rail; 211. Guide rail rack; 220. Welding carriage; 221. Carriage rack; 230. Support mechanism; 231. Connecting structure; 2311. First elongated hole; 232. Extension structure; 233. Telescopic structure; 2331. Second elongated hole; 2332. Positioning hole; 234. First connecting bolt; 235. Welding torch holder; 240. Welding torch; 241. Welding head; 250. Anti-roll pulley; 260. Rocking structure; 261. First connecting hole; 262. Second connecting hole; 263. Third connecting hole; 270. Magnetic connecting seat; 280. Third connecting bolt; 300. Device base. Detailed Implementation

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0029] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] Figure 1 This shows a front view of the test plate welding apparatus provided in an embodiment of the present invention; Figure 2 This is a front view showing a portion of the structure of the test plate welding apparatus provided in an embodiment of the present invention; Figure 3 This is a top view of the test plate welding apparatus provided in an embodiment of the present invention. (Refer to...) Figures 1-3 This embodiment provides a test plate welding device. The test plate welding device includes a test plate fixing unit 100 and a welding unit 200.

[0031] Specifically, the test plate fixing unit 100 includes a support frame 110 and a fixing mechanism 120. A portion of the upper end face of the support frame 110 is provided with a through-hole 111. The fixing mechanism 120 is disposed within the support frame 110. In the Z direction, the distance between the fixing mechanism 120 and the upper end face of the support frame 110 is adjustable, allowing the test plate 10 to be clamped between the fixing mechanism 120 and the upper end face of the support frame 110. The welding position of the test plate 10 is located within the through-hole 111. In this embodiment, two test plates 10 are described, and the welding position is the joint between the two test plates 10. Through the support frame 110 and the fixing mechanism 120, reliable fixing of the test plate 10 can be achieved. Furthermore, since the distance between the fixing mechanism 120 and the upper end face of the support frame 110 is adjustable, it can be adapted to clamping and fixing test plates 10 of various thicknesses.

[0032] More specifically, the welding unit 200 includes a moving guide rail 210, a welding carriage 220, a support mechanism 230, and a welding torch 240. The moving guide rail 210 is arranged along the Y-direction and spaced apart from the support frame 110 in the X-direction. The welding carriage 220 is connected to the moving guide rail 210 and can move along it. The support mechanism 230 is adjustablely connected to the welding carriage 220 in both the Z and X directions. The welding torch 240 is connected to the welding carriage 220 and extends towards the welding position of the test plate 10. The support mechanism 230 supports and connects to the underside of the welding torch 240 in the Z-direction. In this embodiment, the X, Y, and Z directions are perpendicular to each other. The moving guide rail 210 guides the movement of the welding carriage 220, thereby ensuring the straightness of the weld formed by the welding torch 240 and guaranteeing the welding effect. The adjustable position of the support mechanism 230 in the Z and X directions allows for adjustments to its position according to different welding requirements and different test plates 10, ensuring the feasibility of welding.

[0033] More specifically, the support frame 110 includes a positioning structure and a mounting structure 112. There are at least two positioning structures, spaced apart from each other in the X-direction. Each positioning structure includes side positioning portions 113 and top positioning portions 114 connected at an angle to each other, with an opening 111 formed between the two top positioning portions 114. The mounting structure 112 is disposed between the two opposing side positioning portions 113, and the fixing mechanism 120 is adjustablely disposed on the mounting structure 112 in the Z-direction with respect to the top positioning portions 114. The test plate 10 can be clamped between the fixing mechanism 120 and the top positioning portions 114.

[0034] More specifically, the fixing mechanism 120 includes a plurality of support piles 121 arranged in a rectangular array. In this embodiment, there may be twelve support piles 121. Four support piles 121 are grouped together, and the plurality of support piles 121 in each group are spaced apart from each other in the Y direction. One group of support piles 121 is located below one test plate 10, another group of support piles 121 is located below another test plate 10, and the middle group of support piles 121 is located at the junction of the two test plates 10. Each support pile 121 is spirally inserted through the mounting structure 112 and is fixedly connected to the mounting structure 112 by a nut 122. The support pile 121 can support the test plate 10. By setting up a plurality of support piles 121 and by spirally connecting the support piles 121 to the mounting structure 112, the support height of the support piles 121 can be adjusted according to the actual thickness of the test plate 10, and the flexibility is high.

[0035] More specifically, the test plate fixing unit 100 also includes a liner structure 130. The liner structure 130 is positioned corresponding to the welding position of the test plate 10 and is clamped between the test plate 10 and a set of support piles 121 located at the center. It should be noted that the liner structure 130 can specifically be a flat steel liner, and arc-starting plates 20 are provided at both ends of the welding position (i.e., at both ends along the length of the weld between the two test plates 10).

[0036] Continue to refer to Figure 1 and Figure 2 The welding unit 200 also includes a magnetic connector 270. The magnetic connector 270 and the support frame 110 are spaced apart in the X direction, and the movable guide rail 210 is magnetically connected to the magnetic connector 270. The magnetic connector 270 enables reliable and quick installation and positioning of the movable guide rail 210.

[0037] Specifically, the test plate welding device also includes a device base 300, on which the test plate fixing unit 100 and the magnetic connector 270 are both mounted. The device base 300 allows for the integration of the test plate fixing unit 100 and the welding unit 200, improving the overall structural integrity of the test plate welding device.

[0038] Figure 4 This shows a top view of the connection structure and extension structure of the support mechanism provided in an embodiment of the present invention; Figure 5 This shows a top view of the telescopic structure of the support mechanism provided in an embodiment of the present invention; Figure 6 A cross-sectional schematic diagram of the support mechanism provided in an embodiment of the present invention is shown. (Refer to...) Figure 4 and Figure 5The support mechanism 230 includes a connecting structure 231, an extension structure 232, and a telescopic structure 233. The connecting structure 231 has a first elongated hole 2311, the major axis of which is parallel to the Z-direction. A first connecting bolt 234 passes through the first elongated hole 2311 and is fixed to the welding trolley 220. The first connecting bolt 234 is also adjustable in position along the major axis of the first elongated hole 2311. The extension structure 232 is fixed to the connecting structure 231 and extends along the X-direction. The telescopic structure 233 passes through the extension structure 232 and has a second elongated hole 2331. The major axis of the second elongated hole 2331 is parallel to the X-direction. A second connecting bolt passes through the second elongated hole 2331 and is fixed to the extension structure 232. The second connecting bolt is also adjustable in position along the major axis of the second elongated hole 2331. With the above settings, the length of the support mechanism 230 can be adjusted according to different welding positions, thereby ensuring reliable support for the welding torch 240.

[0039] Specifically, a welding torch support 235 is provided on the extension structure 232 and / or the telescopic structure 233, and the welding torch support 235 supports the welding torch 240 below it in the Z direction. In this embodiment, both the extension structure 232 and the telescopic structure 233 are provided with welding torch supports 235, thereby improving the reliability of the support for the welding torch 240 and ensuring the stability of the welding torch 240 during welding.

[0040] More specifically, the telescopic structure 233 has a positioning hole 2332, through which the welding head 241 of the welding torch 240 passes and extends toward the welding position of the test plate 10. The positioning hole 2332 enables the welding head 241 to be positioned, ensuring the stability and reliability of the welding torch 240's assembly on the support mechanism, and ensuring that the welding head 241 remains directly aligned with the welding position during the welding process, thus improving welding effectiveness and efficiency.

[0041] Figure 7 A side view of the swaying structure provided in an embodiment of the present invention is shown. (Refer to...) Figure 7 The welding unit 200 provided in this embodiment also includes anti-roll pulleys 250 and rocking structures 260. There are at least two rocking structures 260, spaced apart from each other, both connected to the welding carriage 220. The anti-roll pulleys 250 are correspondingly connected to the rocking structures 260 and slidably connected to both sides of the moving guide rail 210 in the X direction. It should be noted that the bottom of the welding carriage 220 is provided with a carriage rack 221, and the moving guide rail 210 is provided with a guide rail rack 211. The carriage rack 221 and the guide rail rack 211 mesh with each other, which can improve the reliability of the welding carriage 220 moving along the moving guide rail 210.

[0042] Specifically, the rocking structure 260 is provided with a first connecting hole 261, a second connecting hole 262, and a third connecting hole 263. The first connecting hole 261 is used for connection by a fourth connecting bolt (not shown), which passes through the first connecting hole 261 and is screwed to the bottom of the welding carriage 220. The second connecting hole 262 and the third connecting hole 263 are arranged opposite to each other, and the third connecting bolt 280 passes through both the second connecting hole 262 and the third connecting hole 263. The third connecting bolt 280 is coaxially arranged with the rotation axis of the anti-roll pulley 250. The anti-roll pulley 250 can roll along the side of the moving guide rail 210, and the rocking structure 260 can stabilize the welding carriage 220 on both sides in the X direction. That is to say, the stability of the welding carriage 220 moving along the moving guide rail 210 can be ensured by the anti-roll pulley 250 and the rocking structure 260.

[0043] This embodiment also provides a test plate welding method, which, based on the test plate welding device provided in this embodiment, welds at least two test plates 10. The test plate welding method specifically includes the following steps: Step S10: Install at least two test plates 10 between the upper end face of the support frame 110 and the fixing mechanism 120.

[0044] Step S20: Adjust the position of the support mechanism 230 in the X and Z directions so that the welding head 241 of the welding torch 240 is directly facing the welding position between the two test plates 10.

[0045] Step S30: Start welding and move the welding carriage 220 at a constant speed along the moving guide rail 210.

[0046] It should be noted that in this embodiment, the welding carriage 220 can be driven by a driving device such as a cylinder or hydraulic cylinder in the prior art, or a linear motion module can be integrated on the moving guide rail 210 to drive the welding carriage 220. The specific type will not be described in this embodiment, as long as the welding carriage 220 can be moved at a uniform and controllable speed.

[0047] Step S40: After welding is completed and the material cools naturally, the fixing mechanism 120 is disassembled, and the test plate 10 is removed from the support frame 110.

[0048] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this invention is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this invention.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A test plate welding device, characterized in that, include: The test plate fixing unit (100) includes a support frame (110) and a fixing mechanism (120). A portion of the upper end face of the support frame (110) is provided with a through opening (111). The fixing mechanism (120) is disposed inside the support frame (110). In the Z direction, the distance between the upper end face of the fixing mechanism (120) and the support frame (110) is adjustable. The test plate (10) can be clamped between the upper end face of the fixing mechanism (120) and the support frame (110). The welding unit (200) includes a moving guide rail (210), a welding carriage (220), a support mechanism (230), and a welding torch (240). The moving guide rail (210) is arranged along the Y direction and is spaced apart from the support frame (110) in the X direction. The welding carriage (220) is connected to the moving guide rail (210) and can move along the moving guide rail (210). The support mechanism (230) is tunably connected to the welding carriage (220) in the Z and X directions. The welding torch (240) is connected to the welding carriage (220) and extends toward the welding position of the test plate (10). The support mechanism (230) supports and is connected below the welding torch (240) in the Z direction. The X, Y, and Z directions are perpendicular to each other.

2. The test plate welding device according to claim 1, characterized in that, The support frame (110) includes a positioning structure and an installation structure (112). There are at least two positioning structures, which are spaced apart from each other in the X direction. Each positioning structure includes a side positioning part (113) and a top positioning part (114) that are connected at an angle to each other. The opening (111) is formed between the two top positioning parts (114). The installation structure (112) is disposed between the two side positioning parts (113) that are disposed opposite to each other. The fixing mechanism (120) is disposed on the installation structure (112) with an adjustable distance from the top positioning part (114) in the Z direction. The test plate (10) can be clamped between the fixing mechanism (120) and the top positioning part (114).

3. The test plate welding device according to claim 2, characterized in that, The fixing mechanism (120) includes a plurality of support piles (121) arranged in a rectangular array. Each support pile (121) passes through the mounting structure (112) and is fixedly connected to the mounting structure (112) by a nut (122). The support pile (121) can support the test plate (10) below.

4. The test plate welding device according to claim 1, characterized in that, The test plate fixing unit (100) also includes a pad structure (130), which is set corresponding to the welding position of the test plate (10) and sandwiched between the test plate (10) and the fixing mechanism (120).

5. The test plate welding apparatus according to claim 1, characterized in that, The support mechanism (230) includes a connecting structure (231), an extension structure (232), and a telescopic structure (233). The connecting structure (231) has a first elongated hole (2311), the long axis of which is parallel to the Z direction. A first connecting bolt (234) passes through the first elongated hole (2311) and can be fixed to the welding trolley (220). The first connecting bolt (234) can also be adjusted and fixed along the long axis of the first elongated hole (2311). The extension structure (232) is fixed to the connecting structure (231) and extends along the X direction. The telescopic structure (233) passes through the extension structure (232) and has a second elongated hole (2331). The long axis of the second elongated hole (2331) is parallel to the X direction. The second connecting bolt passes through the second elongated hole (2331) and can be fixed to the extension structure (232). The second connecting bolt can also be adjusted and fixed along the long axis of the second elongated hole (2331).

6. The test plate welding apparatus according to claim 5, characterized in that, A welding torch bracket (235) is provided on the extension structure (232) and / or the telescopic structure (233), and the welding torch bracket (235) is supported below the welding torch (240) in the Z direction.

7. The test plate welding apparatus according to claim 5, characterized in that, The telescopic structure (233) has a positioning hole (2332), and the welding head (241) of the welding gun (240) passes through the positioning hole (2332) and extends toward the welding position of the test plate (10).

8. The test plate welding apparatus according to claim 1, characterized in that, The welding unit (200) further includes anti-roll pulleys (250) and rocking structures (260). There are at least two rocking structures (260), which are spaced apart from each other and are connected to the welding trolley (220). The anti-roll pulleys (250) are connected to the rocking structures (260) one by one and are slidably connected to both sides of the moving guide rail (210) in the X direction.

9. The test plate welding apparatus according to any one of claims 1-8, characterized in that, The welding unit (200) further includes a magnetic connector (270), which is spaced apart from the support frame (110) in the X direction. The moving guide rail (210) is magnetically connected to the magnetic connector (270); and / or, The test plate welding device also includes a device base (300), and the test plate fixing unit (100) and the welding unit (200) are both disposed on the device base (300).

10. A test plate welding method, characterized in that, The test plate welding method is based on the test plate welding apparatus as described in any one of claims 1-9, and welds at least two of the test plates (10); the test plate welding method includes: S10. At least two of the test plates (10) are installed between the upper end face of the support frame (110) and the fixing mechanism (120); S20. Adjust the position of the support mechanism (230) in the X and Z directions so that the welding head (241) of the welding gun (240) is directly opposite the welding position between the two test plates (10); S30. Start welding and move the welding trolley (220) at a constant speed along the moving guide rail (210). S40. After welding is completed and the material cools naturally, the fixing mechanism (120) is disassembled, and the test plate (10) is disassembled relative to the support frame (110).

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