Automatic welding device for various welding seams

Abstract

The utility model provides an automatic welding device for various welding seams, and relates to the technical field of welding. The storage mechanism comprises a welding table, a welding auxiliary assembly and a rotary driving part, a Y sliding rail in the welding auxiliary assembly is arranged on the upper end face of the rack and extends in the Y direction, a mounting part is arranged on the Y sliding rail in a sliding mode, and a first driving part is in transmission connection with the mounting part; the welding table is arranged on the mounting part and can drive the mounting part to reciprocate in the Y direction, the welding table is used for containing a to-be-welded part and connected to the mounting part, and the rotary driving part is in transmission connection with the welding table to drive the welding table to rotate around the axis of the welding table. A connecting assembly in the welding gun mechanism is slidably connected to the Y sliding rail, a welding gun is used for welding a to-be-welded part and movably arranged on the connecting assembly, and the connecting assembly can drive the welding gun to move in the X direction and the Z direction. According to the automatic welding device for the multiple welding seams, welding of the multiple welding seams can be achieved, and the welding effect and the welding efficiency are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field especially relates to a kind of multiple weld automatic welding device. BACKGROUND

[0002] In production and processing process, the connection between parts is usually completed by welding, and the existing welding method is mainly manual welding and automatic welding. Manual welding is slow, with low welding precision and poor welding effect, resulting in high labor cost and time cost. Automatic welding is usually achieved with automatic welding equipment. Although the existing automatic welding equipment has better welding efficiency and welding effect, and can reduce labor cost and time cost during welding, most automatic welding equipment can only complete straight weld, circular weld or ring weld welding, and cannot guarantee the welding effect when facing special-shaped welds, such as elliptical welds. SUMMARY

[0003] The utility model aims at providing a kind of multiple weld automatic welding device. The multiple weld automatic welding device can realize the welding of multiple welds and guarantee the welding effect and welding efficiency.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] The multiple weld automatic welding device comprises:

[0006] A rack;

[0007] A storage mechanism comprising a welding table, a welding auxiliary assembly and a rotary drive, the welding auxiliary assembly comprising a Y slide rail, a mounting member and a first drive, the Y slide rail being arranged on the upper end face of the rack and extending in the Y direction, the mounting member being slidably arranged on the Y slide rail, the first drive being drivingly connected to the mounting member and capable of driving the mounting member to reciprocate in the Y direction, the welding table being used for accommodating a piece to be welded and being connected to the mounting member, and the rotary drive being drivingly connected to the welding table and capable of driving the welding table to rotate around its own axis.

[0008] A welding gun mechanism comprising a connecting assembly and a welding gun, the connecting assembly being slidably connected to the Y slide rail, the welding gun being used for welding the piece to be welded and being movably arranged on the connecting assembly, and the connecting assembly being capable of driving the welding gun to move in the X direction and the Z direction.

[0009] As a further technical solution, the welding auxiliary assembly further comprises an auxiliary member movably arranged on the upper end face of the mounting member in the X direction, and the welding table is connected to the mounting member through the auxiliary member.

[0010] As a further technical scheme, the welding auxiliary assembly further comprises a limiting piece, the limiting piece is arranged on the rack corresponding to the Y slide rail and is located between the welding table and the welding gun mechanism.

[0011] As a further technical scheme, the placing mechanism further comprises a limiting assembly, the limiting assembly is arranged on the rack opposite to the welding table and can limit the relative position of the to-be-welded piece placed on the welding table.

[0012] As a further technical scheme, the limiting assembly comprises a connecting rod and a limiting plate, the connecting rod is connected to the auxiliary piece, and the limiting plate is adjustably arranged on the connecting rod in the Z direction, and adjusting the limiting plate can make the limiting plate abut against the to-be-welded piece placed on the welding table.

[0013] As a further technical scheme, the connecting assembly comprises a connecting bottom plate, an X connecting shaft and a Z connecting shaft, the connecting bottom plate is slidably connected to the Y slide rail, the first end of the Z connecting shaft is fixedly connected to the upper end face of the connecting bottom plate, the X connecting shaft is slidably connected to the Z connecting shaft in the Z direction, and the welding gun is slidably connected to the X connecting shaft in the X direction.

[0014] As a further technical scheme, the connecting assembly further comprises a connecting plate and an auxiliary plate, the connecting plate is slidably connected to the X connecting shaft in the X direction, and the auxiliary plate is perpendicularly connected to the connecting plate, and the welding gun is rotatably connected to one side of the auxiliary plate away from the connecting plate in the A direction.

[0015] As a further technical scheme, the connecting assembly further comprises an auxiliary rotating shaft, the auxiliary plate is connected to the connecting plate through the auxiliary rotating shaft, and rotating the auxiliary rotating shaft can make the welding gun rotate around the axis of the auxiliary rotating shaft.

[0016] As a further technical scheme, the plurality of automatic welding devices for welding seams further comprise a plurality of supporting feet, and the plurality of supporting feet are arranged at intervals on the lower end face of the rack.

[0017] As a further technical scheme, the plurality of automatic welding devices for welding seams further comprise a plurality of universal wheels and a plurality of positioning assemblies, and the plurality of universal wheels and the plurality of positioning assemblies are arranged at intervals on the lower end face of the rack.

[0018] Compared with the prior art, the plurality of automatic welding devices for welding seams provided by the utility model have the following technical advantages:

[0019] The welding table is arranged on the mounting member and is in transmission connection with the rotary driving member, and the rotary driving member can drive the welding table to rotate around the axis thereof; meanwhile, the welding gun is connected to the connecting assembly, the connecting assembly is arranged in sliding mode on the Y slide rail and can drive the welding gun to move in the X direction and the Z direction. Therefore, when welding the workpiece, the placing mechanism and the welding gun mechanism drive the welding table to rotate through the rotary driving member and drive the welding table to move in the Y direction through the mounting member according to the actual situation of the workpiece, so as to change the relative position of the welding table and the workpiece placed on the welding table; meanwhile, the connecting assembly moves on the Y slide rail and drives the welding gun to move in the X direction and the Z direction, so as to realize welding of different shapes of welds, and because the welding table and the welding gun are arranged in a movable mode, when welding the special-shaped weld, the welding table and the welding gun are adjusted in relative position respectively, so as to ensure the welding effect and the welding efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.

[0021] Figure 1 is a structural schematic diagram of one embodiment of the automatic welding device for various welds provided by the embodiments of the present application;

[0022] Figure 2 is a partial structural schematic diagram of another embodiment of the automatic welding device for various welds provided by the embodiments of the present application.

[0023] In the drawings:

[0024] 100, rack;

[0025] 200, placing mechanism; 210, welding table; 220, welding auxiliary assembly; 221, Y slide rail; 223, first driving member; 224, limiting member; 230, rotary driving member; 240, limiting assembly; 241, connecting rod; 242, limiting plate;

[0026] 310, connecting assembly; 311, connecting bottom plate; 312, X connecting shaft; 313, Z connecting shaft; 314, connecting plate; 315, auxiliary plate; 316, auxiliary rotating shaft; 320, welding gun;

[0027] 410, supporting leg; 420, universal wheel; 430, positioning assembly; 431, positioning cylinder; 432, positioning column. DETAILED DESCRIPTION

[0028] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described drawings. It is being contemplated that the application can be implemented in other embodiments that do not depart from the spirit and scope of the claimed application.

[0029] In this application, the terms "including", "containing", "having" or any other similar words are intended to encompass non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or further includes elements inherent in such a process, method, article or apparatus. Without more limitations, the element defined by the phrase "including a" does not exclude the presence of other identical elements in the process, method, article or apparatus including the element.

[0030] In this application, the term "and / or", is a description of the association relationship between the associated objects, which means that there can be three kinds of relationships. For example, A and / or B, can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this application generally represents a "and / or" relationship between the front and rear associated objects.

[0031] In this application, the terms "connection", "combination", "coupling", "mounting" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, for example, direct connection refers to the connection of two parts or components without the need for an intermediate part, and indirect connection refers to the connection of two parts or components with at least one intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0032] In this application, those of ordinary skill in the art will understand that the relative terms used in connection with a quantity or a condition (for example, "about", "approximately", "substantially" and the like) include the value indicated and have the meaning indicated by the context. For example, the relative terms at least include the degree of error related to the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. related to a specific value. Such terms should also be considered to disclose the range defined by the absolute values of the two endpoints. The relative term can refer to a certain percentage (for example, 1%, 5%, 10% or more) of the indicated value. The numerical value without the relative term should also be disclosed as a specific value with a tolerance. In addition, "substantially" when expressing the relative angular positional relationship (for example, substantially parallel, substantially perpendicular), can refer to a certain degree (for example, 1 degree, 5 degrees, 10 degrees or more) added or subtracted from the indicated angle.

[0033] In this application, it will be understood by those of ordinary skill in the art that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or a combination of multiple parts.

[0034] In this application, the terms "upper", "lower", "left", "right", "front", "back", and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the present application. In addition, it is also understood in the context that when referring to one element connected to another element "on" or "under", it can be directly connected to another element "on" or "under", or indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like not only represent the positive direction, but also can be understood as the lateral direction. For example, the lower side can include the lower side, the lower left side, the lower right side, the front lower side, and the back lower side, etc.

[0035] In combination Figure 1 And Figure 2 As shown in the figure, the embodiment provides a plurality of automatic welding devices for welding (hereinafter referred to as welding device) can realize the welding of a variety of welds, and ensure the welding effect and welding efficiency. Specifically, the welding device, comprising a rack 100, a placing mechanism 200 and a welding gun mechanism; the placing mechanism 200 comprises a welding table 210, a welding auxiliary assembly 220 and a rotary drive 230, the welding auxiliary assembly 220 comprises a Y slide rail 221, a mounting member (not shown in the figure) and a first drive 223, the Y slide rail 221 is arranged on the upper end surface of the rack 100 and extends along the Y direction, the mounting member is slidingly arranged on the Y slide rail 221, the first drive 223 is drivingly connected to the mounting member and can drive the mounting member to reciprocate along the Y direction, the welding table 210 is used for accommodating the welding parts and is connected to the mounting member, the rotary drive 230 is drivingly connected to the welding table 210 and can drive the welding table 210 to rotate around its axis; the welding gun mechanism comprises a connecting assembly 310 and a welding gun 320, the connecting assembly 310 is slidingly connected to the Y slide rail 221, the welding gun 320 is used for welding the welding parts and is movably arranged on the connecting assembly 310, the connecting assembly 310 can drive the welding gun 320 to move along the X direction and the Z direction.

[0036] The welding table 210 is arranged on the mounting member and is in transmission connection with the rotary driving member 230, and the rotary driving member 230 can drive the welding table 210 to rotate around the axis thereof. Meanwhile, the welding gun 320 is connected to the connecting assembly 310, the connecting assembly 310 is arranged on the Y slide rail 221 in a sliding mode, and can drive the welding gun 320 to move in the X direction and the Z direction. Therefore, when welding the workpiece, the placing mechanism 200 and the welding gun mechanism can drive the welding table 210 to rotate through the rotary driving member 230 and drive the welding table 210 to move in the Y direction through the mounting member, so as to change the relative position of the welding table 210 and the workpiece arranged on the welding table 210 according to the actual situation of the workpiece. Meanwhile, the connecting assembly 310 moves on the Y slide rail 221 and drives the welding gun 320 to move in the X direction and the Z direction, so as to realize welding of different shapes of welds. Since the welding table 210 and the welding gun 320 are arranged in a movable mode, when welding the special-shaped weld, the welding table 210 and the welding gun 320 can be adjusted in the relative position respectively, so as to ensure the welding effect and the welding efficiency. For example, when the elliptical weld is completed, the welding table 210 moves in the Y direction and rotates around the axis thereof, and the connecting assembly 310 drives the welding gun 320 to adjust the relative position of the welding gun 320 in the X direction only. In this way, the elliptical weld can be welded. Meanwhile, the connecting assembly 310 does not need to adjust the relative position of the welding gun 320 in the Y direction, so that the deviation of the butt joint position can be avoided when the connecting assembly 310 adjusts the relative position of the welding gun 320 in the Y direction and the welding table 210 and the workpiece arranged on the welding table 210 adjust the relative position in the Y direction at the same time, and the welding effect is not ideal. When other shapes of welds are completed, the relative positions of the welding table 210 and the welding gun 320 can be adjusted according to the actual situation, which is not limited specifically herein. In addition, in order to further improve the stability of the connecting assembly 310 and the mounting member when moving in the Y direction, two Y slide rails 221 are arranged in the embodiment, and the two Y slide rails 221 are arranged in parallel and at intervals along the X direction. In other embodiments, the number of Y slide rails 221 can be increased or decreased adaptively according to actual needs.

[0037] Preferably, the welding auxiliary assembly 220 further comprises an auxiliary member (not shown in the figure), which is arranged on the upper end surface of the mounting member in a movable mode in the X direction, and the welding table 210 is connected to the mounting member through the auxiliary member.

[0038] Specifically, the upper end surface of the mounting member is provided with an X slide rail extending in the X direction, and the lower end surface of the auxiliary member is provided with an auxiliary sliding block in sliding connection with the X slide rail. Through cooperation of the Y slide rail 221, the mounting member and the auxiliary member, the relative position of the welding table 210 can be adjusted in the X direction and the Y direction, so as to further improve the convenience of welding various welds and ensure the welding effect.

[0039] Preferably, the welding auxiliary assembly 220 further comprises a limiting piece 224, which is arranged on the rack 100 corresponding to the Y slide rail 221 and located between the welding table 210 and the welding gun mechanism.

[0040] In combination Figure 1 As shown in the drawings, in the embodiment, two limiting pieces 224 are arranged, one-to-one corresponding to the two Y slide rails 221, and both are located between the welding table 210 and the welding gun mechanism. When the welding table 210 and the welding gun mechanism move on the Y slide rail 221, it is avoided that the welding table 210 and the welding gun mechanism collide due to excessive movement, so as to ensure the stability of the welding device.

[0041] Preferably, the storage mechanism 200 further comprises a limiting assembly 240, which is arranged on the rack 100 opposite to the welding table 210 and can limit the relative position of the workpiece to be welded placed on the welding table 210. In the welding process, it is avoided that the workpiece to be welded moves, so as to ensure the welding effect of the workpiece to be welded. Specifically, the limiting assembly 240 comprises a connecting rod 241 and a limiting plate 242. The connecting rod 241 is connected to the auxiliary piece, and the limiting plate 242 is adjustably arranged on the connecting rod 241 along the Z direction. Adjusting the limiting plate 242 can make the limiting plate 242 abut against the workpiece to be welded placed on the welding table 210. Since the connecting rod 241 is connected to the auxiliary piece, the relative position of the connecting rod 241 in the X direction and the Y direction does not need to be considered in the welding process. By adjusting the relative position of the limiting plate 242 in the Z direction, the limiting of the workpiece to be welded with different thicknesses can be realized, so as to improve the applicability. The embodiment that the limiting plate 242 is adjustably arranged on the connecting rod 241 along the Z direction can adopt a telescopic rod that is arranged to stretch and retract along the Z direction. By adjusting the telescopic amount of the connecting rod 241, the relative position of the limiting plate 242 in the Z direction is changed. The connecting rod 241 is arranged as a bending piece. Its specific form is arranged according to the actual structure of the actual welding device. The connecting rod 241 is connected to the auxiliary piece. The limiting plate 242 movably connected to the connecting rod 241 can limit the relative position of the workpiece to be welded on the welding table 210.

[0042] Preferably, the connecting assembly 310 comprises a connecting base plate 311, an X connecting shaft 312 and a Z connecting shaft 313, the connecting base plate 311 is slidingly connected to the Y slide rail 221, the first end of the Z connecting shaft 313 is fixedly connected to the upper end surface of the connecting base plate 311, the X connecting shaft 312 is slidingly connected to the Z connecting shaft 313 along the Z direction, and the welding gun 320 is slidingly connected to the X connecting shaft 312 along the X direction. In this way, the welding gun 320 connected to the connecting assembly 310 can realize relative position adjustment in the X direction, the Y direction and the Z direction through the cooperation of the connecting base plate 311, the X connecting shaft 312, the Z connecting shaft 313 and the Y slide rail 221, so as to meet the welding of different forms of welds and different specifications of workpieces to be welded. In addition, since the welding table 210 and the connecting assembly 310 are both connected to the same Y slide rail 221, the number of Y slide rails 221 can be reduced, the welding effect of the welding device is ensured, and the cost is reduced. In addition, the sliding of the connecting base plate 311 along the Y direction, the sliding of the X connecting shaft 312 relative to the Z connecting shaft 313 along the Z direction, and the sliding of the welding gun 320 relative to the X connecting shaft 312 along the X direction are all realized through corresponding second driving members; in the embodiment, the first driving member 223 and the second driving member are both servo motors, and the specific structure and working principle of the servo motor refer to the prior art, which is not limited here.

[0043] Preferably, the connecting assembly 310 further comprises a connecting plate 314 and an auxiliary plate 315, the connecting plate 314 is slidingly connected to the X connecting shaft 312 along the X direction, and the auxiliary plate 315 is perpendicularly connected to the connecting plate 314, and the welding gun 320 is rotatably connected to one side of the auxiliary plate 315 away from the connecting plate 314 along the A direction. By providing the connecting plate 314, the connection convenience, connection strength and connection stability of the welding gun 320 connected to the X connecting shaft 312 are improved; by providing the auxiliary plate 315, the welding gun 320 can be rotated along the A direction around the auxiliary plate 315, so as to adjust the pitch angle of the welding gun 320, realize the welding of different welds, and ensure the welding effect.

[0044] Preferably, the connecting assembly 310 further comprises an auxiliary rotating shaft 316, the auxiliary plate 315 is connected to the connecting plate 314 through the auxiliary rotating shaft 316, and rotating the auxiliary rotating shaft 316 can make the welding gun 320 rotate around the axis line of the auxiliary rotating shaft 316.

[0045] In combination Figure 1 As shown, by adjusting the rotation angle of the auxiliary rotating shaft 316, the auxiliary plate 315 and the welding gun 320 are driven to rotate around the axis line of the auxiliary rotating shaft 316, so as to change the included angle between the welding end of the welding gun 320 and the upper end surface of the welding table 210 in the X direction, and realize the welding of different welds.

[0046] Preferably, the welding device further comprises a plurality of supporting feet 410, which are arranged at the lower end surface of the rack 100. By arranging the plurality of supporting feet 410, the welding device can be placed, and the overall height of the welding device can be changed by arranging supporting feet 410 of different specifications; or, according to the specific circumstances of the placement position of the welding device, different specifications of supporting feet 410 are connected to the lower end surface of the rack 100 to ensure that the upper end surface of the welding table 210 is always in a horizontal state, thereby ensuring the welding effect. The number of supporting feet 410 can be arranged according to actual needs. In the embodiment, four supporting feet 410 are arranged, and the four supporting feet 410 are arranged at the four corners of the rack 100, respectively.

[0047] In another embodiment, the welding device further comprises a plurality of universal wheels 420 and a plurality of positioning assemblies 430, which are arranged at the lower end surface of the rack 100. When transporting the welding device, the plurality of universal wheels 420 are used to realize the transportation of the welding device and improve the convenience of transporting the welding device; after the welding device is transported to the destination, the base station is placed on the horizontal plane by the plurality of positioning assemblies 430. In this way, the welding device after transportation can be prevented from moving by itself under the action of the plurality of universal wheels 420.

[0048] Specifically Figure 2 As shown in the drawings, one of the positioning assemblies 430 is taken as an example. The positioning assembly 430 comprises a positioning cylinder 431 and a positioning column 432. The positioning cylinder 431 is fixedly arranged at the lower end surface of the rack 100, and the positioning column 432 is inserted into the positioning cylinder 431. By changing the distance between the positioning column 432 and the positioning cylinder 431, the distance between the lower end surface of the rack 100 and the horizontal plane can be changed. When the overall height of the positioning assembly 430 is less than the height of the universal wheel 420, the welding device can be transported with the help of the plurality of universal wheels 420; after the welding device is transported to the destination, the distance between the positioning column 432 and the positioning cylinder 431 is adjusted so that the plurality of universal wheels 420 are suspended, thereby positioning the welding device at the destination to ensure the use effect of the welding device. In order to limit the relative position between the positioning cylinder 431 and the positioning column 432 after adjustment, the positioning column 432 is threadedly connected to the positioning cylinder 431; or a plurality of positioning screw holes are arranged on the side wall of the positioning cylinder 431 along the axial direction. After the positioning cylinder 431 and the positioning column 432 are adjusted, an adjusting screw is inserted into the positioning screw hole and tightened, so that the adjusting screw abuts against the positioning column 432. In the embodiment, four universal wheels 420 and four positioning assemblies 430 are arranged at the four corners of the rack 100, respectively. In other embodiments, the number can be appropriately increased or decreased according to actual conditions, which is not limited here.

[0049] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A plurality of weld seam automatic welding apparatuses characterized by, The utility model relates to a welding device, including: A rack (100); A placing mechanism (200) including a welding table (210), a welding auxiliary assembly (220) and a rotary driving part (230), the welding auxiliary assembly (220) includes Y slide rail (221), mounting and first driving part (223), Y slide rail (221) is arranged on the upper end surface of the rack (100) and extends along the Y direction, the mounting is slidably arranged on Y slide rail (221), first driving part (223) is drivingly connected to the mounting and can drive the mounting reciprocating motion along the Y direction, the welding table (210) is used for accommodating the welding piece to be welded and is connected to the mounting, the rotary driving part (230) is drivingly connected to the welding table (210) and can drive the welding table (210) rotation around its axis; A welding torch mechanism including a connecting assembly (310) and a welding torch (320), the connecting assembly (310) is slidably connected to the Y slide rail (221), and the welding torch (320) is used for welding the welding piece to be welded and is movably arranged on the connecting assembly (310), and the connecting assembly (310) can drive the welding torch (320) to move along the X direction and the Z direction.

2. The apparatus of claim 1, wherein, The welding auxiliary assembly (220) further includes an auxiliary part movably arranged on the upper end surface of the mounting along the X direction, and the welding table (210) is connected to the mounting through the auxiliary part.

3. The apparatus of claim 1, wherein, The welding auxiliary assembly (220) further includes a limiting part (224), which is arranged on the rack (100) corresponding to the Y slide rail (221) and located between the welding table (210) and the welding torch mechanism.

4. The apparatus of claim 2, wherein, The placing mechanism (200) further includes a limiting assembly (240), which is arranged on the rack (100) opposite to the welding table (210) and can limit the relative position of the welding piece to be welded placed on the welding table (210).

5. The apparatus of claim 4, wherein, The limiting assembly (240) includes a connecting rod (241) and a limiting plate (242), the connecting rod (241) is connected to the auxiliary part, and the limiting plate (242) is adjustably arranged on the connecting rod (241) along the Z direction, adjusting the limiting plate (242) can make the limiting plate (242) abut against the welding piece to be welded placed on the welding table (210).

6. The apparatus of claim 1, wherein, The connecting assembly (310) includes a connecting bottom plate (311), an X connecting shaft (312) and a Z connecting shaft (313), the connecting bottom plate (311) is slidably connected to the Y slide rail (221), the first end of the Z connecting shaft (313) is fixedly connected to the upper end surface of the connecting bottom plate (311), the X connecting shaft (312) is slidably connected to the Z connecting shaft (313) along the Z direction, and the welding torch (320) is slidably connected to the X connecting shaft (312) along the X direction.

7. The apparatus of claim 6, wherein, The connecting assembly (310) further comprises a connecting plate (314) and an auxiliary plate (315), the connecting plate (314) is slidingly connected to the X connecting shaft (312) along the X direction, the auxiliary plate (315) is perpendicularly connected to the connecting plate (314), and the welding gun (320) is rotationally connected to one side of the auxiliary plate (315) away from the connecting plate (314) along the A direction.

8. The apparatus of claim 7, wherein, The connecting assembly (310) further comprises an auxiliary rotating shaft (316), the auxiliary plate (315) is connected to the connecting plate (314) through the auxiliary rotating shaft (316), and rotating the auxiliary rotating shaft (316) can make the welding gun (320) rotate around the axis of the auxiliary rotating shaft (316).

9. The apparatus of any of claims 1-8, wherein, The plurality of automatic welding devices for welding seams further comprise a plurality of supporting feet (410), and the plurality of supporting feet (410) are arranged at intervals on the lower end surface of the rack (100).

10. The apparatus of any of claims 1-8, wherein, The plurality of automatic welding devices for welding seams further comprise a plurality of universal wheels (420) and a plurality of positioning assemblies (430), and the plurality of universal wheels (420) and the plurality of positioning assemblies (430) are arranged at intervals on the lower end surface of the rack (100).

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