Seam welding equipment

Abstract

The utility model discloses roll welding equipment. The roll welding equipment comprises a roll welding device, a moving device, a plurality of bearing devices and a control device. A roll welding hole is formed in the roll welding device, and each reinforcing steel bar penetrates through the roll welding hole; the moving device is used for being fixedly connected with the end, away from the roll welding device, of each steel bar and used for driving each steel bar to move in the first direction. The multiple bearing devices are arranged at intervals in the first direction, each bearing device is arranged between the moving device and the roll welding device, each bearing device comprises a first driving part and a bearing assembly, and the first driving parts are connected with the bearing assemblies and used for driving the bearing assemblies to move in the third direction; and each first driving piece is electrically connected with the control device, and the control device is used for controlling the multiple first driving pieces so that the multiple first driving pieces can drive the bearing assemblies to synchronously move in the third direction. According to the roll welding equipment, the yield of reinforcement cage products can be increased.

Description

Technical Field

[0001] The present application relates to the field of roll welding of steel reinforcement cages, and particularly to a roll welding device. Background Art

[0002] A roll welding device is a device used for roll welding. Roll welding is also known as circumferential seam welding. When welding a steel reinforcement cage, the end of each steel bar is usually fixed to a moving trolley. The moving trolley pulls multiple steel bars to move along their axial directions, so that the multiple steel bars move between the rolling discs, and a sealed weld seam with overlapping fusion nuclei is generated to weld the multiple steel bars together, thereby forming a steel reinforcement cage. During the process of the moving trolley pulling the multiple steel bars to move, multiple supporting devices are usually required to support the steel bars. However, since there may be deviations in the heights between the multiple supporting devices, the steel bars placed on the supporting devices cannot be kept horizontal, resulting in an inclined end face where the steel bars are connected to the moving trolley, and thus reducing the product yield of the steel reinforcement cage production. Summary of the Utility Model

[0003] In view of this, the purpose of the present application is to overcome the deficiencies in the prior art and provide a roll welding device that can improve the product yield of the steel reinforcement cage.

[0004] To achieve the above purpose, the technical solution adopted in the present application is as follows:

[0005] The roll welding device according to an embodiment of the present application has a first direction and a third direction, and the first direction is perpendicular to the third direction. The roll welding device includes: a roll welding device provided with a roll welding hole, the axial direction of the roll welding hole is arranged along the first direction, and the roll welding hole is used for each steel bar to pass through; a moving device spaced from the roll welding device along the first direction, the moving device is used for fixedly connecting to one end of each steel bar away from the roll welding device and for driving each steel bar to move along the first direction; multiple supporting devices arranged at intervals along the first direction, and each supporting device is arranged between the moving device and the roll welding device. Each supporting device includes a first driving member and a supporting component, the first driving member is connected to the supporting component, and the first driving member is used for driving the supporting component to move along the third direction; a control device, each first driving member is electrically connected to the control device, and the control device is used for controlling the multiple first driving members so that the multiple first driving members drive each supporting component to move synchronously along the third direction.

[0006] The roll welding device of the present application has the following advantages:

[0007] In the seam welding device of the present application, each reinforcing bar can be passed through the seam welding holes along the first direction, so that multiple reinforcing bars are welded into a reinforcing cage by the seam welding device. In this process, since the moving device and the seam welding device are arranged at intervals along the first direction, the moving device is used to fixedly connect with one end of each reinforcing bar away from the seam welding device and is used to drive each reinforcing bar to move along the first direction. Therefore, each reinforcing bar can be driven by the moving device to move along the first direction, so that multiple annular welds are formed on multiple reinforcing bars along their axial directions to form a reinforcing cage. At the same time, when multiple reinforcing bars move along the first direction with the moving device, the reinforcing cage can be supported by the bearing components in multiple bearing devices arranged at intervals along the first direction to avoid the phenomenon of the middle of the reinforcing cage being sunken. Also, since the control device is used to control multiple first driving members so that the multiple first driving members drive each bearing component to move synchronously along the third direction, in this way, each bearing component can be driven by the multiple first driving members to move synchronously along the third direction, so that multiple bearing components can be located at the same position in the third direction, and the bearing component can be driven by the first driving member to move to any position along the third direction. In this way, the center axis of the reinforcing cage can be ensured to be parallel to the first direction by adjusting the positions of multiple bearing components at the same time, thereby avoiding the situation that the end face where the reinforcing bar is connected to the moving device is inclined, so as to improve the yield rate of the reinforcing cage product.

[0008] For the seam welding device according to an embodiment of the present application, the moving device includes a moving member and a connecting component. One end of the connecting component along the first direction is fixedly connected to each reinforcing bar, and the other end of the connecting component along the first direction is fixedly connected to the moving member. The moving member moves along the first direction toward the direction away from the seam welding device.

[0009] For the seam welding device according to an embodiment of the present application, the connecting component includes a connecting disk. One end of the connecting disk along the first direction is connected to the moving member, and the other end of the connecting disk along the first direction is fixedly connected to each reinforcing bar.

[0010] For the seam welding device according to an embodiment of the present application, the connecting disk is provided with a connecting hole. The connecting hole includes a first hole body and a second hole body. The second hole body is provided with a first area and a second area communicating with the first area. The central axis of the first hole body is parallel to the axis of the second hole body along the first direction. The second area is arranged on one side of the first area along the circumferential direction of the connecting disk;

[0011] Wherein, the second hole body can rotate relative to the first hole body along the circumferential direction of the connecting disk, and in the radial direction of the connecting disk, the size of the second area is smaller than that of the first area.

[0012] According to the seam welding device of the embodiment of the present application, there are a plurality of the connection holes, and the plurality of connection holes are arranged at intervals along the circumferential direction of the connection disk, and each connection hole is used for a steel bar to pass through.

[0013] According to the seam welding device of the embodiment of the present application, the plurality of connection holes are arranged at intervals along the circumferential direction of the connection disk to form a connection hole group, and there are a plurality of the connection hole groups, and the plurality of connection hole groups are arranged at intervals along the radial direction of the connection disk.

[0014] According to the seam welding device of the embodiment of the present application, the connection disk includes a first disk body and a second disk body, the second disk body is arranged at one end of the first disk body away from the moving part along the first direction, and is rotatably connected with the first disk body, the first disk body is provided with the first hole body, and the second disk body is provided with the second hole body.

[0015] According to the seam welding device of the embodiment of the present application, the connection assembly further includes a connection shaft, the connection shaft extends along the first direction, one end of the connection shaft along the first direction is fixedly connected with the moving part, the other end of the connection shaft along the first direction is fixedly connected with the center of the connection disk, and the central axis of the connection shaft coincides with the central axis of the seam welding hole.

[0016] According to the seam welding device of the embodiment of the present application, the seam welding device further includes a frame, the frame extends along the first direction, the seam welding device is arranged at one end of the frame along the first direction, the moving device is arranged at the other end of the frame along the first direction, and each carrying device is arranged on one side of the frame along the third direction.

[0017] According to the seam welding device of the embodiment of the present application, the frame has a guiding assembly, the guiding assembly includes a guide rail and a guiding part slidably connected with the guide rail, the guide rail extends along the first direction on the frame, the guiding part is fixedly connected with the moving part and moves along the first direction relative to the guide rail. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0019] Figure 1 Shows the structural schematic diagram of the seam welding device in the present application;

[0020] Figure 2 ShowsFigure 1 Schematic enlarged view of location A

[0021] Figure 3 shows Figure 1 Schematic enlarged view of location B

[0022] Figure 4 Schematic view of the structure of the mobile device in the present application

[0023] Figure 5 Schematic view of the structure of the connection disk in the present application

[0024] Description of main reference numerals:

[0025] 100 - Resistance welding device; 110 - Resistance welding hole

[0026] 200 - Mobile device; 210 - Moving member; 220 - Connection assembly; 221 - Connection disk; 2211 - First disk body; 2212 - Second disk body; 222 - Connection hole; 2221 - First hole body; 2222 - Second hole body; 2222a - First region; 2222b - Second region; 223 - Connection shaft; 230 - Second driving member

[0027] 300 - Carrying device; 310 - First driving member; 320 - Carrying assembly

[0028] 400 - Control device

[0029] 500 - Frame

[0030] 600 - Guide assembly; 610 - Guide rail; 620 - Guide member

[0031] x - First direction; y - Second direction; z - Third direction Detailed description of the specific implementation

[0032] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where 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 by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as limiting the present application.

[0033] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0035] In the present application, unless otherwise clearly specified and limited, the terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0037] Referring to Figure 1 and Figure 2 As shown, the seam welding equipment involved in the embodiment of the present application has a first direction x and a third direction z, and the first direction x is perpendicular to the third direction z. The seam welding equipment includes: a seam welding device 100, a moving device 200, a plurality of carrying devices 300, and a control device 400.

[0038] Specifically, the seam welding device 100 is provided with a seam welding hole 110. The axial direction of the seam welding hole 110 is arranged along the first direction x, and the seam welding hole 110 is used for each steel bar to pass through; the moving device 200 is arranged at an interval from the seam welding device 100 along the first direction x. The moving device 200 is used for fixedly connecting with one end of each steel bar away from the seam welding device 100 and for driving each steel bar to move along the first direction x; a plurality of bearing devices 300 are arranged at intervals along the first direction x, and each bearing device 300 is arranged between the moving device 200 and the seam welding device 100. Each bearing device 300 includes a first driving member 310 and a bearing assembly 320. The first driving member 310 is connected with the bearing assembly 320, and the first driving member 310 is used for driving the bearing assembly 320 to move along the third direction z; each first driving member 310 is electrically connected with the control device 400. The control device 400 is used for controlling a plurality of first driving members 310 so that the plurality of first driving members 310 drive each bearing assembly 320 to move synchronously along the third direction z.

[0039] It should be noted that the first direction x is Figure 1 the direction indicated by x in Figure 1 and the third direction z is

[0040]

[0041] Specifically, in this embodiment, the first driving member 310 is a driving motor. Driving the bearing assembly 320 to move along the third direction z by the driving motor can better control the moving distance of the bearing assembly 320 along the third direction z, so as to ensure that all the bearing assemblies 320 are located at the same position in the third direction z.

[0042] Referring to Figure 4 As shown, the moving device 200 includes a moving member 210 and a connecting assembly 220. One end of the connecting assembly 220 along the first direction x is fixedly connected to each steel bar, and the other end of the connecting assembly 220 along the first direction x is fixedly connected to the moving member 210. The moving member 210 moves along the first direction x away from the seam welding device 100.

[0043] In this embodiment, since one end of the connecting assembly 220 along the first direction x is fixedly connected to each steel bar and the other end of the connecting assembly 220 along the first direction x is fixedly connected to the moving member 210, in this way, the connection between the moving member 210 and each steel bar can be realized through the connecting assembly 220. Also, since the moving member 210 moves along the first direction x away from the seam welding device 100, each steel bar can be driven by the moving member 210 to move along the first direction x away from the seam welding device 100, so as to realize the production of the steel bar cage.

[0044] Continuing to refer to Figure 4 As shown, the connecting assembly 220 includes a connecting disk 221. One end of the connecting disk 221 along the first direction x is connected to the moving member 210, and the other end of the connecting disk 221 along the first direction x is fixedly connected to each steel bar.

[0045] In this embodiment, since one end of the connecting disk 221 along the first direction x is connected to the moving member 210 and the other end of the connecting disk 221 along the first direction x is fixedly connected to each steel bar, in this way, the connection between each steel bar and the moving member 210 can be realized through the connecting disk 221, so as to facilitate the moving member 210 to drive each steel bar to move along the first direction x away from the seam welding device 100, thereby realizing the production of the steel bar cage.

[0046] Referring to Figure 4 and Figure 5As shown, the connection plate 221 is provided with a connection hole 222. The connection hole 222 includes a first hole body 2221 and a second hole body 2222. The second hole body 2222 is provided with a first region 2222a and a second region 2222b communicating with the first region 2222a. The central axis of the first hole body 2221 is parallel to the central axis of the second hole body 2222 along the first direction x. The second region 2222b is arranged on one side of the first region 2222a along the circumferential direction of the connection plate 221. Wherein, the second hole body 2222 can rotate relative to the first hole body 2221 along the circumferential direction of the connection plate 221, and in the radial direction of the connection plate 221, the size of the second region 2222b is smaller than that of the first region 2222a.

[0047] It should be noted that the diameter of the end of each steel bar connected to the connection plate 221 is larger than the diameter of its middle part to form a limiting step at the end.

[0048] In this embodiment, since the second hole body 2222 can rotate relative to the first hole body 2221 along the circumferential direction of the connection plate 221, and the central axis of the first hole body 2221 is parallel to the central axis of the second hole body 2222 along the first direction x, therefore, the second hole body 2222 can be rotated relative to the first hole body 2221, so that the first region 2222a of the second hole body 2222 is coaxially arranged with the first hole body 2221. In this way, the steel bar can be inserted through the first hole body 2221 and the second hole body 2222 at the same time, and then the second hole body 2222 is rotated relative to the first hole body 2221 so that the steel bar can be inserted through the second region 2222b of the second hole body 2222 and the first hole body 2221 at the same time. Also, since in the radial direction of the connection plate 221, the size of the second region 2222b is smaller than that of the first region 2222a, in this way, the end of the steel bar can be fixed in the first hole body 2221 through the second region 2222b. Therefore, the fixation of the steel bar and the connection plate 221 can be realized through the connection hole 222.

[0049] Refer to Figure 4 As shown, there are multiple connection holes 222. The multiple connection holes 222 are arranged at intervals along the circumferential direction of the connection plate 221. Each connection hole 222 is used for a steel bar to pass through.

[0050] In this embodiment, since the multiple connection holes 222 are arranged at intervals along the circumferential direction of the connection plate 221, and each connection hole 222 is used for a steel bar to pass through, in this way, the fixation of each steel bar and the connection plate 221 can be realized through the multiple connection holes 222 to ensure the parallelism of multiple steel bars, and at the same time improve the connection stability between the steel bar cage and the connection plate 221, so as to ensure that the steel bar cage can move along the first direction x away from the roll welding equipment under the drive of the moving member 210.

[0051] Continue to refer to Figure 4 As shown, a plurality of connecting holes 222 are arranged at intervals along the circumferential direction of the connecting plate 221 to form a group of connecting holes 222. There are multiple groups of connecting holes 222, and the multiple groups of connecting holes 222 are arranged at intervals along the radial direction of the connecting plate 221.

[0052] In this embodiment, since the multiple groups of connecting holes 222 are arranged at intervals along the radial direction of the connecting plate 221, in this way, steel bars of cages with different diameters can be passed through the connecting holes 222 of different groups of connecting holes 222. Therefore, the connecting plate 221 can be connected to cages with different diameters, so that the resistance welding equipment of the present application can weld cages with different sizes to meet different production requirements.

[0053] Refer to Figure 5 As shown, the connecting plate 221 includes a first plate body 2211 and a second plate body 2212. The second plate body 2212 is arranged at one end of the first plate body 2211 away from the moving member 210 along the first direction x and is rotatably connected to the first plate body 2211. The first plate body 2211 is provided with a first hole body 2221, and the second plate body 2212 is provided with a second hole body 2222.

[0054] Specifically, the first plate body 2211 and the second plate body 2212 are coaxially arranged, and the central axes of the first plate body 2211 and the second plate body 2212 both extend along the first direction x.

[0055] In this embodiment, since the second plate body 2212 is arranged at one end of the first plate body 2211 away from the moving member 210 along the first direction x and is rotatably connected to the first plate body 2211, in this way, the second plate body 2212 can rotate relative to the first plate body 2211 around the first direction x. Since the first plate body 2211 is provided with the first hole body 2221 and the second plate body 2212 is provided with the second hole body 2222, when the second plate body 2212 rotates relative to the first plate body 2211 around the first direction x, the second hole body 2222 can rotate relative to the first hole body 2221 to clamp the end of the steel bar in the first hole body 2221.

[0056] Specifically, refer to Figure 4 As shown, the moving assembly further includes a second driving member 230. The second driving member 230 is connected to the second plate body 2212 and is used to drive the second plate body 2212 to rotate around the first direction x.

[0057] Continue to refer to Figure 4As shown, the moving component further includes a connecting shaft 223. The connecting shaft 223 extends along the first direction x. One end of the connecting shaft 223 along the first direction x is fixedly connected to the moving member 210, and the other end of the connecting shaft 223 along the first direction x is fixedly connected to the center of the connecting disk 221. Moreover, the central axis of the connecting shaft 223 coincides with the central axis of the seam welding hole 110.

[0058] In this embodiment, since the connecting shaft 223 extends along the first direction x, and one end of the connecting shaft 223 along the first direction x is fixedly connected to the moving member 210, and the other end of the connecting shaft 223 along the first direction x is fixedly connected to the center of the connecting disk 221, therefore, when the moving member 210 moves along the first direction x, it can ensure that the connecting disk 221 moves along the first direction x, and ensure that the central axis of the connecting disk 221 remains parallel to the first direction x. Further, it can ensure that multiple steel bars can move along the first direction x, and the central axis of each steel bar can remain parallel to the first direction x, so as to improve the product yield of the reinforcement cage production. Also, since the central axis of the connecting shaft 223 coincides with the central axis of the seam welding hole 110, in this way, it can further ensure that the central axis of the steel bar remains parallel to the first direction x during the movement of the steel bar, so as to further improve the product yield of the reinforcement cage production.

[0059] Specifically, continue to refer to Figure 4 As shown, the second driving member 230 is a driving cylinder. One end of the driving cylinder is rotatably connected to the connecting shaft 223, and the driving cylinder rotates around the first direction x relative to the connecting shaft 223. The other end of the driving cylinder is rotatably connected to the second disk body 2212, and the driving cylinder rotates around the first direction x between the driving cylinder and the second disk body 2212. The piston rod of the driving cylinder extends and retracts along the radial direction of the second disk body 2212 to drive the second disk body 2212 to rotate around the first direction x through the driving cylinder.

[0060] Refer to Figure 1 As shown, the seam welding equipment further has a second direction y and a third direction z that are respectively perpendicular to the first direction x and the second direction y. The seam welding equipment further includes a frame 500. The frame 500 extends along the first direction x. The seam welding device 100 is arranged at one end of the frame 500 along the first direction x, and the moving device 200 is arranged at the other end of the frame 500 along the first direction x. Each loading device 300 is arranged on one side of the frame 500 along the second direction y.

[0061] It should be noted that the second direction y is Figure 1 the direction indicated by y in

[0062] In this embodiment, the seam welding device 100, the moving device 200, and each carrying device 300 can be arranged on the frame 500. Since the seam welding device 100 is arranged at one end of the frame 500 along the first direction x, and the moving device 200 is arranged at the other end of the frame 500 along the first direction x, in this way, the moving device 200 can drive the steel bars to move along the first direction x away from the seam welding device 100. Also, since each carrying device 300 is arranged on one side of the frame 500 along the second direction y, in this way, each carrying device 300 can support the reinforcement cage during the movement of the steel bars.

[0063] Referring to Figure 3 As shown, the frame 500 has a guiding component 600. The guiding component 600 includes a guide rail 610 and a guiding member 620 slidably connected to the guide rail 610. The guide rail 610 extends along the first direction x on the frame 500. The guiding member 620 is fixedly connected to the moving member 210 and moves along the first direction x relative to the guide rail 610.

[0064] In this embodiment, since the guide rail 610 extends along the first direction x on the frame 500, the guiding member 620 is fixedly connected to the moving member 210 and moves along the first direction x relative to the guide rail 610. Therefore, when the moving member 210 moves along the first direction x, the guiding member 620 can move along the first direction x relative to the guide rail 610 on the guide rail 610, so as to guide the moving direction of the moving member 210 through the guiding member 620, ensuring that the moving member 210 can move along the first direction x, and further ensuring that the central axis of each steel bar can maintain a state of extending along the first direction x during the movement, further avoiding the inclination phenomenon at the end of each steel bar connected to the moving device 200 and improving the product yield of the reinforcement cage production.

[0065] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0066] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A seam welding device, characterized in that, The seam welding device has a first direction and a third direction, and the first direction is perpendicular to the third direction. The seam welding device includes: A seam welding device provided with a seam welding hole, the axial direction of the seam welding hole is arranged along the first direction, and the seam welding hole is used for each steel bar to pass through; A moving device is arranged at an interval from the seam welding device along the first direction. The moving device is used for fixedly connecting with one end of each steel bar away from the seam welding device and for driving each steel bar to move along the first direction; A plurality of bearing devices are arranged at intervals along the first direction, and each bearing device is arranged between the moving device and the seam welding device. Each bearing device includes a first driving member and a bearing assembly. The first driving member is connected to the bearing assembly, and the first driving member is used for driving the bearing assembly to move along the third direction; A control device, each first driving member is electrically connected to the control device, and the control device is used for controlling a plurality of first driving members so that the plurality of first driving members drive each bearing assembly to move synchronously along the third direction.

2. The seam welding equipment according to claim 1, wherein The moving device includes a moving member and a connecting component. One end of the connecting component along the first direction is fixedly connected to each steel bar, and the other end of the connecting component along the first direction is fixedly connected to the moving member. The moving member moves along the first direction away from the seam welding device.

3. The roll welding device according to claim 2, characterized in that The connecting component includes a connecting disk. One end of the connecting disk along the first direction is connected to the moving member, and the other end of the connecting disk along the first direction is fixedly connected to each steel bar.

4. The seam welding device according to claim 3, characterized in that, The connecting disk is provided with a connecting hole. The connecting hole includes a first hole body and a second hole body. The second hole body is provided with a first area a and a second area b communicated with the first area a. The central axis of the first hole body is parallel to the axis of the second hole body along the first direction. The second area b is arranged on one side of the first area a along the circumferential direction of the connecting disk; Wherein, the second hole body can rotate relative to the first hole body along the circumferential direction of the connecting disk, and in the radial direction of the connecting disk, the size of the second area b is smaller than the size of the first area a.

5. The roll welding equipment according to claim 4, characterized in that, There are a plurality of connecting holes, and the plurality of connecting holes are arranged at intervals along the circumferential direction of the connecting disk. Each connecting hole is used for a steel bar to pass through.

6. The roll welding equipment according to claim 5, characterized in that The plurality of connecting holes are arranged at intervals along the circumferential direction of the connecting disk to form a connecting hole group. There are a plurality of connecting hole groups, and the plurality of connecting hole groups are arranged at intervals along the radial direction of the connecting disk.

7. The roll welding device according to claim 4, wherein, The connecting disk includes a first disk body and a second disk body. The second disk body is arranged at one end of the first disk body along the first direction away from the moving member and is rotatably connected to the first disk body. The first disk body is provided with the first hole body, and the second disk body is provided with the second hole body.

8. The seam welding device according to claim 3, characterized in that The connecting component further includes a connecting shaft. The connecting shaft extends along the first direction. One end of the connecting shaft along the first direction is fixedly connected to the moving member, and the other end of the connecting shaft along the first direction is fixedly connected to the center of the connecting disk. Moreover, the central axis of the connecting shaft coincides with the central axis of the roll welding hole.

9. The roll welding device according to any one of claims 2-8, characterized in that, The roll welding device further has a second direction, and the third direction is perpendicular to the first direction and the second direction respectively. The roll welding device further includes a frame. The frame extends along the first direction. The roll welding device is arranged at one end of the frame along the first direction, the moving device is arranged at the other end of the frame along the first direction, and each of the loading devices is arranged on one side of the frame along the second direction.

10. The seam welding device according to claim 9, characterized in that, The frame has a guiding component. The guiding component includes a guide rail and a guiding member slidably connected to the guide rail. The guide rail extends along the first direction on the frame. The guiding member is fixedly connected to the moving member and moves along the first direction relative to the guide rail.

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