Automatic welding method, track and ship

Abstract

The invention relates to the technical field of ship manufacturing, in particular to an automatic welding method, a track and a ship. The automatic welding method comprises a manufacturing step and an automatic welding step. The manufacturing method comprises the steps that a rail is manufactured, the rail comprises a plate body and two vertical ribs arranged on one side of the plate body, and the two vertical ribs are parallel to each other; a laser indicator is installed at the end of a welding gun of the automatic welding machine; the automatic welding step comprises the steps that a manufactured track is arranged beside a workpiece to be welded, and the position of the track meets the operability of an automatic welding machine; the position of the rail is adjusted, so that the two vertical ribs of the rail are parallel to the to-be-welded welding line of the to-be-welded workpiece; an automatic welding machine is placed between the two vertical ribs of the track, a laser indicator is turned on to be aligned with a to-be-welded weld joint, and the track, a welding gun and the to-be-welded weld joint are kept consistent; and the automatic welding machine is started, so that the automatic welding machine walks along the vertical ribs of the track. The technical problem that the application range of a traditional welding technology is limited is solved.

Description

Technical Field

[0001] The present application relates to the technical field of shipbuilding, and in particular to an automatic welding method, a track and a ship. Background Art

[0002] In shipbuilding, a large number of steel plates need to be welded on the hull. Modern shipbuilding technology uses a variety of welding technologies, such as the commonly used submerged arc welding technology and automatic welding technology.

[0003] Submerged arc welding technology is widely used in shipbuilding. For example, the MZ-1250 / 1600 submerged arc welding machine is suitable for butt welding thick and extra-thick hull plates, offering advantages such as fast welding speed, good forming, and high efficiency. Submerged arc welding equipment primarily consists of three components: the welding machine, the machine head, and the track, which also includes welding wire and flux. A key feature is the track's automated welding process, which operates like a train. The welding process is linear, uniform, and automated, resulting in better welding quality and higher efficiency. This represents a significant breakthrough in ship welding automation technology.

[0004] However, submerged arc welding technology has poor effect on welding thin plates, as well as flat angle welds and other special welds, and is also large in size.

[0005] Automatic welding technology is used with the HCD500-2C automatic welding machine and other types of automatic welding machines. These machines are primarily used for welding flat fillet welds in shipbuilding, offering fast welding speeds and superior weld formation. The HCD500-2C and other types of automatic welding machines utilize trackless welding, featuring a high-strength magnet at the bottom, four rubber wheels, two guide wheels on the sides, and a drive system above. The high-strength magnet and guide wheels create a tight fit with adjacent steel plates. After adjusting welding parameters, the machine and drive system are activated and welding begins. Simple operation makes them commonly used for flat fillet welds.

[0006] However, the HCD500-2C automatic welding machine and other models of fillet welding machines all use trackless welding technology, which not only requires manual welding through the automatic welding machine, but also has low efficiency and poor weld formation. In addition, the above-mentioned trackless welding technology has a specific scope of application and is generally only used for welding flat fillet welds. There are many special welds that cannot be directly welded, such as special welds with angles greater than 90°. Summary of the Invention

[0007] The purpose of this application is to provide an automatic welding method, a track and a ship, thereby solving the above-mentioned technical problems existing in traditional welding technology.

[0008] According to a first aspect of the present application, there is provided an automatic welding method, the automatic welding method comprising a manufacturing step and an automatic welding step; The production steps include: Making a track, the track comprising a plate body and two vertical ribs arranged on one side of the plate body, the two vertical ribs being parallel to each other; Installing a laser pointer at the end of the welding gun of the automatic welding machine; The automatic welding step comprises: Arranging the manufactured track next to the workpiece to be welded so that the position of the track satisfies the operability of the automatic welding machine; Adjust the position of the track so that the two vertical ribs of the track remain parallel to the weld seam of the workpiece to be welded; Placing the automatic welding machine between two vertical ribs of the track, turning on the laser pointer and aiming it at the weld to be welded, so that the track, the welding gun and the weld to be welded are aligned; The automatic welding machine is started so that the automatic welding machine moves along the vertical ribs of the track.

[0009] In any of the above technical solutions, further, the laser pointer is an infrared laser pen.

[0010] In any of the above technical solutions, further, the automatic welding machine includes four wheels. In the manufacturing step, the distance between two vertical ribs is greater than the distance between the outermost sides of the two wheels, and the distance between the wheels and the vertical ribs is 0.3 mm to 0.5 mm.

[0011] In any of the above technical solutions, further, in the manufacturing step, a plurality of the rails are manufactured, and the ends of the plurality of the rails are connected to each other.

[0012] According to a second aspect of the present application, there is provided a track, which is applied to the automatic welding method as described above; The track includes the plate body and two vertical ribs parallel to each other; The vertical ribs protrude from one side of the plate body, and the space between the two vertical ribs is used to support the automatic welding machine.

[0013] In any of the above technical solutions, further, the plate body includes two support plates extending along the first direction and multiple connecting plates extending along the second direction; the first direction and the second direction are perpendicular; the two support plates are spaced apart in the second direction, the connecting plate is connected between the two support plates, and the connecting plate and one side of the support plate are aligned; the vertical ribs extend along the first direction, and the two vertical ribs protrude from one side of the two support plates respectively.

[0014] In any of the above technical solutions, further, the vertical ribs separate the support plate into an inner plate portion and an outer plate portion, and the inner plate portion is used to support the automatic welding machine.

[0015] In any of the above technical solutions, further, there are multiple tracks, and the ends of the multiple tracks can be connected.

[0016] In any of the above technical solutions, further, the track also includes a bracket, the connecting plate and the other side of the support plate are aligned, and the bracket is connected to the connecting plate and the other side of the support plate to support the track to a predetermined height.

[0017] According to a third aspect of the present application, a ship is provided, wherein workpieces to be welded on the ship are welded by the above-mentioned automatic welding method.

[0018] According to the above technical features, the beneficial effects of this application are: The present application manufactures a track for automatic CO2 gas shielded welding, and the welding of the weld seam is completed by the cooperation of the automatic welding machine and the track. When welding the weld seam of the workpiece to be welded, it is only necessary to place the automatic welding machine between the two vertical ribs of the track, start the automatic welding machine, and make the automatic welding machine automatically move along the vertical ribs of the track. There is no need for manual welding, which saves labor and greatly improves welding efficiency and quality. Moreover, the welding method of the automatic welding machine in the present application and the track can not only realize flat butt welding of thin plates, but also realize flat angle welding of thin plates and welding technology of special welds, such as special welds with angles greater than 90°.

[0019] The automatic welding machine of this application cooperates with the rail for welding to perform flat butt welding and special fillet welding, effectively expanding the scope of use of the automatic welding machine, changing traditional welding process technology, greatly improving welding efficiency and quality, reducing traditional manual welding construction, and significantly improving the level of shipbuilding.

[0020] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic flow chart showing an automatic welding method according to an embodiment of the present application; Figure 2 A top view of a track showing an embodiment of the present application; Figure 3 A front view showing a track according to an embodiment of the present application; Figure 4 A schematic diagram showing the docking of two tracks according to an embodiment of the present application is shown; Figure 5 A schematic diagram showing the special fillet weld used in welding PCTC ventilation ducts in this application.

[0023] Icon: 10-track; 100-board body; 110-support plate; 111-internal plate; 112-external plate; 120-connecting plate; 121-end connecting plate; 200-vertical rib; X-first direction; Y-second direction; Z-third direction. DETAILED DESCRIPTION

[0024] The following detailed description is provided to help the reader gain a comprehensive understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein. Rather, except for operations that must occur in a particular order, changes may be made that will be apparent upon understanding the disclosure of this application. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity.

[0025] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0026] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, it may be directly “on,” “connected to,” “coupled to,” “over,” or “overlaying” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on,” “directly connected to,” “directly coupled to,” “directly over,” or “directly covering” another element, there may be no other elements present between them.

[0027] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0028] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are used only to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Thus, a first member, component, region, layer, or portion in the examples described herein may also be referred to as a second member, component, region, layer, or portion without departing from the teachings of the examples.

[0029] For ease of description, spatially relative terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatially relative terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element would subsequently be located "below" or "lower" relative to the other element. Thus, the term "above" encompasses both the orientations of "above" and "below," depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used herein will be interpreted accordingly.

[0030] The terms used herein are intended only to describe various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular is intended to include the plural. The terms "comprise," "include," and "have" list the presence of stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0031] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include changes in shapes that occur during manufacturing.

[0032] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0033] The first aspect of the present application provides an automatic welding method, thereby solving the above technical problems existing in traditional welding technology. Figures 1 to 5 An automatic welding method and track according to some embodiments of the present application are described.

[0034] like Figure 1 As shown, the automatic welding method of the present application includes a manufacturing step and an automatic welding step; The production steps include: S1 , manufacturing a track 10 , wherein the track 10 includes a plate body 100 and two vertical ribs 200 arranged on one side of the plate body 100 , wherein the two vertical ribs 200 are parallel to each other.

[0035] S2, a laser pointer is installed at the end of the welding gun of the automatic welding machine.

[0036] Automatic welding steps include: S3, arranging the manufactured track 10 beside the workpiece to be welded, so that the position of the track 10 meets the operability of the automatic welding machine.

[0037] S4, adjusting the position of the track 10 so that the two vertical ribs 200 of the track 10 remain parallel to the weld seam of the workpiece to be welded.

[0038] S5, placing the automatic welding machine between the two vertical ribs 200 of the track 10, turning on the laser pointer and aligning it with the weld to be welded, so that the track 10, the welding gun and the weld to be welded are aligned.

[0039] S6, start the automatic welding machine and make it move along the vertical ribs 200 of the track 10.

[0040] As described above, the present application manufactures a track 10 for automatic welding with CO2 gas shielded welding, and completes the welding of the weld seam by cooperating with the automatic welding machine and the track 10. When it is necessary to weld the weld seam of the workpiece to be welded, it is only necessary to place the automatic welding machine between the two vertical ribs 200 of the track 10, start the automatic welding machine, and allow the automatic welding machine to automatically move along the vertical ribs 200 of the track 10. There is no need for manual welding construction, which saves labor and greatly improves welding efficiency and quality. Moreover, the welding method of the automatic welding machine of the present application in conjunction with the track 10 can not only realize flat butt welding of thin plates, but also realize flat angle welding of thin plates and welding technology of special welds, for example, special welds with angles greater than 90°.

[0041] The automatic welding machine of the present application cooperates with the track 10 for welding, and can perform flat butt welding and special fillet welding, etc., effectively expanding the scope of use of the automatic welding machine, changing traditional welding process technology, greatly improving welding efficiency and quality, reducing traditional manual welding construction, and significantly improving the level of shipbuilding.

[0042] Refer to the following Figures 1 to 5 The following describes the automatic welding method according to some embodiments of the present application. Figure 1 As shown, the automatic welding method of the present application includes a manufacturing step and an automatic welding step.

[0043] The production steps include: S1 , manufacturing a track 10 , wherein the track 10 includes a plate body 100 and two vertical ribs 200 arranged on one side of the plate body 100 , wherein the two vertical ribs 200 are parallel to each other.

[0044] The automatic welding machine includes four wheels (rubber wheels) and high-strength magnets at its base. The distance between two vertical ribs 200 is greater than the distance between the outermost edges of the two wheels, and the distance between the wheels and the vertical ribs 200 is 0.3mm to 0.5mm. This arrangement creates a 0.3mm to 0.5mm gap between the track 10 and the wheels below the automatic welding machine (fillet welder). This ensures stable operation of the automatic welding machine and its linearity, thus ensuring weld straightness and quality.

[0045] As an example, this application designs the track 10 size according to the wheel spacing of the HCD500-2C automatic welding machine (wheel spacing 176mm), that is, the designed track spacing is 177mm (the distance between the inner sides of the two vertical ribs 200), and the automatic welding machine is placed on the track 10 for automated welding, thereby changing the traditional trackless 10 welding method.

[0046] In addition, multiple rails 10 can be manufactured, and the ends of multiple rails 10 can be butted together and connected to form a whole rail to meet the welding requirements of long welds.

[0047] S2. Install a laser pointer at the end of the welding gun of the automatic welding machine. Preferably, the laser pointer is an infrared laser pen. When in use, turn on the infrared laser pen and align it with the weld seam to ensure that the track 10, the welding gun, and the weld seam are aligned. This facilitates on-site adjustment and operation. If the infrared laser pen runs out of power, it can be removed and charged.

[0048] Automatic welding steps include: S3, arranging the manufactured track 10 beside the workpiece to be welded, so that the position of the track 10 meets the operability of the automatic welding machine.

[0049] S4, adjusting the position of the track 10 so that the two vertical ribs 200 of the track 10 remain parallel to the weld seam of the workpiece to be welded.

[0050] S5, placing the automatic welding machine between the two vertical ribs 200 of the track 10, turning on the laser pointer to align with the weld to be welded, and adjusting the position of the track 10 so that the track 10, the welding gun and the weld to be welded are consistent.

[0051] S6, adjusting welding parameters and starting the automatic welding machine (at this time, the high-strength magnet at the bottom of the automatic welding machine is attracted to the track 10), so that the automatic welding machine moves along the vertical ribs 200 of the track 10.

[0052] S7, completion, retract track 10 and keep track 10 without deformation (if deformed, repair on site).

[0053] According to a second aspect of the present application, a track 10 is provided, which is applied to the automatic welding method as described above. Figure 2 and Figure 3 As shown, the track 10 produced in this application includes a plate body 100 and two vertical ribs 200 parallel to each other. The vertical ribs 200 protrude from one side of the plate body 100, and the space between the two vertical ribs 200 is used to support the automatic welding machine (the space between the two vertical ribs 200 is used to limit and guide the wheels of the automatic welding machine).

[0054] Furthermore, the panel body 100 of the present application includes two support panels 110 extending along a first direction X and a plurality of connecting panels 120 extending along a second direction Y; the first direction X and the second direction Y are perpendicular. The two support panels 110 are spaced apart in the second direction Y, and the connecting panel 120 is connected between the two support panels 110, and the connecting panel 120 is aligned with one side of the support panels 110; the vertical ribs 200 extend along the first direction X, and the two vertical ribs 200 protrude from one side of the two support panels 110 (such as Figure 3 As shown, it protrudes along the third direction Z).

[0055] This arrangement creates a hollow structure between the two support plates 110 and the two adjacent connecting plates 120, which not only reduces the weight of the entire track 10 but also facilitates its manufacture. In this application, the entire track 10 is constructed from 5mm steel plate, weighing less than 5 kg, meeting production requirements. Furthermore, the connecting plates 120 and support plates 110 are aligned on both sides, facilitating the manufacture of the entire track 10 while ensuring stable contact between the track 10 and the ground (workpiece) and between the track 10 and the automatic welding machine (wheel).

[0056] like Figure 3 As shown, the vertical ribs 200 separate the support plate 110 into an inner plate portion 111 and an outer plate portion 112, wherein the inner plate portion 111 is used to support the wheels of the automatic welding machine. Figure 2 and Figure 3As shown, this application designs the track 10 dimensions based on the wheel spacing of the HCD500-2C automatic welding machine (wheel spacing 176mm), with a designed track spacing L1 of 177mm (the distance between the inner sides of the two vertical ribs 200). The automatic welding machine is placed on this track 10 for automated welding, thereby changing the traditional track-free welding method. This ensures a distance of 0.5mm between the wheel and the vertical rib 200. This arrangement creates a 0.5mm gap between the track 10 and the wheel below the automatic welding machine (corner welder). This ensures both stable operation of the automatic welding machine and the machine's linearity, thus ensuring weld straightness and quality. Furthermore, the overall width L2 of the track 10 is 210mm (the entire plate body 100).

[0057] Furthermore, in the embodiments of the present application, Figure 2 and Figure 4 As shown, the number of tracks 10 is multiple ( Figure 4 (two are shown schematically in the figure), the ends of multiple rails 10 can be butted together. Specifically, a connecting plate 120 located at one end of the rail 10 is defined as an end connecting plate 121. The end connecting plate 121 protrudes (exceeds) the support plate 110, and the connecting plate 120 at the other end has an insertion gap with the end surface of the support plate 110. With this arrangement, when two rails 10 are butted together, it is only necessary to insert the end connecting plate 121 of one rail 10 into the insertion gap of the other rail 10. This operation is simple and convenient, and the stability and integrity are good after the butt joint.

[0058] Furthermore, in an embodiment of the present application, the track 10 further includes a bracket, which is connected to the other side of the connecting plate 120 and the support plate 110 (the side facing away from the vertical rib 200) to support the track 10 at a predetermined height. The bracket here can be a rectangular bracket that supports the track 10 at a predetermined height, or the bracket can be a triangular bracket that supports the track 10 at a certain inclination angle. With such a configuration, when the present application requires welding a workpiece of a certain height or a workpiece with a certain inclination angle, a rectangular bracket or a triangular bracket can be selected to support the track 10 at a predetermined height or angle, thereby ensuring that the position of the track 10 meets the operability of the automatic welding machine, making it convenient for the automatic welding machine to directly weld the workpiece.

[0059] In summary, the present application manufactures a track 10 capable of automatic welding using CO2 gas shielded welding, wherein the welding of the weld seam is completed by the cooperation between the automatic welding machine and the track 10. When welding the weld seam of the workpiece to be welded, the automatic welding machine only needs to be placed between two vertical ribs 200 of the track 10, and the automatic welding machine is started, so that the automatic welding machine automatically moves along the vertical ribs 200 of the track 10. Manual welding is no longer required, which saves labor and greatly improves welding efficiency and quality.

[0060] Furthermore, the automatic welding machine of the present application cooperates with the track 10 for welding, enabling not only flat butt welding of thin plates, but also flat angle welding of thin plates and welding of special welds, for example, special welds with angles greater than 90°. The automatic welding machine of the present application cooperates with the track 10 for welding, enabling welding of flat butt welds and special angle welds, effectively expanding the scope of use of the automatic welding machine, changing traditional welding process technology, significantly improving welding efficiency and quality, reducing traditional manual welding work, and significantly improving the level of shipbuilding.

[0061] As mentioned above, before this application was submitted, the traditional process for the above-mentioned type of welds could only be performed manually by CO2 gas shielded welding, which has low efficiency and poor weld formation. The application of automatic welding machines and orbital welding technology effectively promotes automated and efficient welding technology, improves welding efficiency by 100%, improves welding quality by 100%, improves quality, reduces grinding, and effectively promotes lean shipbuilding.

[0062] In addition, before the present application, when the workpiece to be welded has a porous structure, the automatic welding machine cannot move on the porous structure. When the automatic welding machine of the present application is used in conjunction with the track 10 to perform welding, the track 10 can be placed on the workpiece to be welded and the machine can move on the track 10 without being affected by the porous structure.

[0063] In other words, this application realizes track welding of the automatic welding machine, meeting the requirements of the automatic welding machine's automation and multi-purpose welding technology: 1. Realize the automatic welding machine to weld 4-12mm flat butt welds on the hull, such as PCTC ship type ventilation ducts.

[0064] 2. Realize the automatic welding machine to weld the flat butt and fillet welds of porous structures.

[0065] 3. Enable automatic welding machines to weld fillet welds with beveled edges, for example, special welds with angles greater than 90°.

[0066] 4. Welding special types of fillet welds, such as Figure 5 Figure 2 shows a schematic diagram of the special fillet weld used to weld the PCTC ventilation duct.

[0067] According to a third aspect of the present application, a ship is provided, wherein workpieces to be welded on the ship are welded by the automatic welding method described above.

[0068] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the scope of protection of the present application.

Claims

1. An automatic welding method, characterized in that: The automatic welding method includes a manufacturing step and an automatic welding step; The production steps include: Making a track, the track comprising a plate body and two vertical ribs arranged on one side of the plate body, the two vertical ribs being parallel to each other; Installing a laser pointer at the end of the welding gun of the automatic welding machine; The automatic welding step comprises: Arranging the manufactured track next to the workpiece to be welded so that the position of the track satisfies the operability of the automatic welding machine; Adjust the position of the track so that the two vertical ribs of the track remain parallel to the weld seam of the workpiece to be welded; Placing the automatic welding machine between two vertical ribs of the track, turning on the laser pointer and aiming it at the weld to be welded, so that the track, the welding gun and the weld to be welded are aligned; The automatic welding machine is started so that the automatic welding machine moves along the vertical ribs of the track.

2. The automatic welding method according to claim 1, characterized in that: The laser pointer is an infrared laser pen.

3. The automatic welding method according to claim 1, characterized in that: The automatic welding machine includes four wheels. In the manufacturing step, the distance between two vertical ribs is greater than the distance between the outermost sides of two wheels, and the distance between the wheels and the vertical ribs is 0.3 mm to 0.5 mm.

4. The automatic welding method according to claim 1, characterized in that: In the manufacturing step, a plurality of the rails are manufactured, and ends of the plurality of rails are butted together.

5. A track, characterized in that: The track is applied to the automatic welding method according to any one of claims 1 to 4; The track includes the plate body and two vertical ribs parallel to each other; The vertical ribs protrude from one side of the plate body, and the space between the two vertical ribs is used to support the automatic welding machine.

6. The track according to claim 5, characterized in that The plate body includes two support plates extending along a first direction and a plurality of connecting plates extending along a second direction; the first direction is perpendicular to the second direction; The two support plates are spaced apart in the second direction, the connecting plate is connected between the two support plates, and the connecting plate is aligned with one side of the support plate; The vertical ribs extend along the first direction, and the two vertical ribs protrude from one side of the two support plates respectively.

7. The track according to claim 6, characterized in that The vertical ribs separate the support plate into an inner plate portion and an outer plate portion, and the inner plate portion is used to support the automatic welding machine.

8. The track according to claim 6, characterized in that There are multiple rails, and ends of the multiple rails can be butted against each other.

9. The track according to claim 6, characterized in that The track further includes a bracket, the connecting plate and the other side of the support plate are aligned, and the bracket is connected to the connecting plate and the other side of the support plate to support the track to a predetermined height.

10. A ship, characterized in that: The workpieces to be welded of the ship are welded by the automatic welding method according to any one of claims 1 to 4.

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