Welding device and welding system

Abstract

The utility model discloses a welding device and a welding system. The welding device comprises a base, a conveying mechanism and a welding mechanism. The conveying mechanism comprises a first conveying assembly and a second conveying assembly. And a jig is arranged on the conveying mechanism. The first conveying assembly is arranged on the bearing surface of the base, and the first conveying assembly is configured to convey the jig in the first direction; the second conveying assembly is connected with the first conveying assembly, and the second conveying assembly is configured to convey the jig in the second direction; wherein the first direction and the second direction are different directions parallel to the bearing surface; the welding mechanism is arranged on the base. The welding device is independent of the production line equipment, welding of the battery cell can be completed outside the production line equipment, and the production time of the production line equipment is not occupied when parameter debugging is carried out.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery manufacturing, in particular to a welding device and a welding system. BACKGROUND

[0002] In the production of the existing battery device, the tab welding machine is integrated on the production line equipment, and the tab welding machine and the production line equipment form an integral system. The cutting, welding, packaging and other processes of the battery device are all carried out on the production line equipment. Therefore, when the welding machine needs to change the welding effect for parameter debugging, the production time of the production line equipment will be occupied, and other processes of the production line equipment also need to be suspended, which affects the production efficiency of the battery device. CONTENT OF THE UTILITY MODEL

[0003] In view of the above problems, the present application provides a welding device and a welding system. The welding device is an off-line equipment. When parameter debugging is performed, the production time of the production line equipment can not be occupied, and the welding of the battery cell can be completed outside the production line equipment.

[0004] To solve the above technical problems, one technical scheme adopted by the present application is to provide a welding device, which comprises: a base; a conveying mechanism, wherein a jig is arranged on the conveying mechanism, the conveying mechanism comprises: a first conveying assembly, the first conveying assembly is arranged on a bearing surface of the base, and the first conveying assembly is configured to convey the jig in a first direction; a second conveying assembly, the second conveying assembly is connected to the first conveying assembly, and the second conveying assembly is configured to convey the jig in a second direction; wherein the first direction and the second direction are different directions parallel to the bearing surface; and a welding mechanism, the welding mechanism is arranged on the base.

[0005] The jig is used to place the battery cell and the adapter sheet, the first conveying assembly and the second conveying assembly are used to move the battery cell and the adapter sheet to a specified welding position for welding, and the first conveying assembly and the second conveying assembly are also used to switch the welding position. The above welding device is independent of the production line equipment, can independently weld the tab of the battery cell, and can not occupy the production time of the production line equipment when parameter debugging is performed.

[0006] In one possible implementation, the conveying mechanism further comprises: a third conveying assembly, the third conveying assembly is connected to the second conveying assembly, and the third conveying assembly is configured to convey the jig in a third direction; and the third direction intersects the bearing surface.

[0007] The third conveying assembly can drive the jig to rise and fall on the base, so that when the welding position needs to be switched, the jig can be lifted or lowered to be separated from the welding seat of the welding mechanism, thereby reducing the risk that the jig is stuck with the welding seat of the welding mechanism when the first conveying mechanism and the second conveying assembly drive the jig to translate.

[0008] In a possible implementation, the welding device further comprises a shaping assembly arranged on the conveying mechanism, the shaping assembly comprising a pressing plate configured to move away from or close to the jig to press the battery cell and the adapter plate on the jig during welding.

[0009] The above-mentioned pressing plate of the shaping assembly can flatten the battery cell and the tab during welding, and can position and fix the battery cell and the tab, thereby improving the accuracy of welding.

[0010] In a possible implementation, the first conveying assembly comprises a first moving plate, a first sliding structure arranged on the bearing surface and connected to the first moving plate, and a first driving device connected to the first moving plate.

[0011] The above-mentioned first driving device can drive the first moving plate to move the jig in the first direction. In addition, the first power reversing element can facilitate manual operation for reversing, thereby reducing electrically controlled switches and simplifying the structure of the device.

[0012] In a possible implementation, the first sliding structure comprises a first guide element arranged on the bearing surface and a second guide element connected to the first moving plate, the first guide element and the second guide element being in sliding connection, and the first guide element is one of a sliding rail and a sliding block, and the second guide element is the other one of the sliding rail and the sliding block.

[0013] The above-mentioned first sliding structure comprises the first guide element and the second guide element, which can guide the movement of the first conveying assembly in the first direction.

[0014] In a possible implementation, the first conveying assembly further comprises a positioning buffer arranged on the bearing surface and located on one side or both sides of the first moving plate in the first direction.

[0015] The above-mentioned positioning buffer can protect and position the battery cell, thereby improving the accuracy of the welding position.

[0016] In a possible implementation, the second conveying assembly comprises a second moving plate and a second sliding structure arranged on the first moving plate and connected to the second moving plate.

[0017] The above-mentioned second moving plate can move the jig in the second direction through the second sliding structure.

[0018] In a possible implementation, the second sliding structure comprises a third guide and a fourth guide matched with the third guide, the third guide is arranged on the first moving plate, the fourth guide is connected with the second moving plate, and the third guide is in sliding connection with the fourth guide; the third guide is one of a sliding rail and a sliding block, and the fourth guide is the other one of the sliding rail and the sliding block.

[0019] The second sliding structure comprises the third guide and the fourth guide, and can guide the movement of the second conveying assembly in the second direction.

[0020] In a possible implementation, the second conveying assembly further comprises a position adjusting screw and a position adjusting nut matched with the position adjusting screw, the position adjusting screw is rotatably arranged on one of the first moving plate and the second moving plate, and the position adjusting nut is arranged on the other one of the first moving plate and the second moving plate.

[0021] The position of the jig in the second direction can be finely adjusted through the position adjusting screw and the position adjusting nut, and the accuracy of the position of the battery cell and the adapter sheet in the second direction in the welding position is improved.

[0022] In a possible implementation, the third conveying assembly comprises a third moving plate, the jig is arranged on the third moving plate; a third sliding structure, the third sliding structure is arranged on the second moving plate, the third sliding structure is connected with the third moving plate; a second driving device, the second driving device is connected with the third moving plate; and a second power reversing element, the second power reversing element is arranged on the base, and the second power reversing element is connected with the second driving device.

[0023] The third moving plate can be driven to move the jig in the third direction through the second driving device. In addition, the second power reversing element facilitates manual operation for reversing, can reduce electric control switches, and simplifies the structure of the device.

[0024] In a possible implementation, the third sliding structure comprises a fifth guide and a sixth guide matched with the fifth guide, the fifth guide is arranged on the second moving plate, and the sixth guide is connected with the third moving plate; the fifth guide is in sliding connection with the sixth guide; the fifth guide is one of a guide rod and a guide rod sleeve, and the sixth guide is the other one of the guide rod and the guide rod sleeve.

[0025] The third sliding mechanism comprises the guide rod and the guide rod sleeve, and can guide the movement of the third conveying assembly in the third direction.

[0026] In a possible implementation, the shaping assembly comprises: a first mounting base arranged on the second moving plate, a second mounting base slidingly arranged on the first mounting base, and the pressing plate arranged on the second mounting base; a third driving device connected to the second mounting base; and a third power reversing element arranged on the base and connected to the third driving device.

[0027] The third driving device drives the second mounting base to drive the pressing plate to move close to or away from the jig. In addition, the third power reversing element facilitates manual operation for reversing, reduces the number of electric control switches, and simplifies the structure of the device.

[0028] In a possible implementation, the shaping assembly further comprises a positioning and locking structure arranged on the first mounting base and located on one side of the second mounting base along the third direction.

[0029] After the pressing plate presses the battery cell and the adapter piece, the second mounting base can be locked by the positioning and locking structure to keep the position of the battery cell and the adapter piece accurate during welding.

[0030] To solve the above technical problems, another technical solution adopted by the present application is to provide a welding system, which comprises the welding device.

[0031] The welding system is used to place the battery cell and the adapter piece, and the first conveying assembly and the second conveying assembly are used to move the battery cell and the adapter piece to a designated welding position for welding. The first conveying assembly and the second conveying assembly are also used to switch the welding position. The welding device is independent of the production line equipment, can independently weld the tab of the battery cell, and does not occupy the production time of the production line equipment during parameter debugging.

[0032] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following will describe the specific embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. 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 creating any creative labor.

[0034] Figure 1Structure diagram of the welding device from a first perspective according to some embodiments;

[0035] Figure 2 For Figure 1 Structure diagram of the welding device from a second perspective according to some embodiments;

[0036] Figure 3 For Figure 1 Structure diagram of the base of the welding device from a first perspective according to some embodiments;

[0037] Figure 4 For Figure 1 Structure diagram of the base of the welding device from a second perspective according to some embodiments;

[0038] Figure 5 For Figure 1 Structure diagram of the first transfer assembly of the welding device from a first perspective according to some embodiments;

[0039] Figure 6 For Figure 1 Structure diagram of the second transfer assembly of the welding device from a first perspective according to some embodiments;

[0040] Figure 7 For Figure 1 Structure diagram of the second transfer assembly of the welding device from a second perspective according to some embodiments;

[0041] Figure 8 For Figure 1 Structure diagram of the third transfer assembly of the welding device from a first perspective according to some embodiments;

[0042] Figure 9 For Figure 1 Structure diagram of the third transfer assembly of the welding device from a second perspective according to some embodiments;

[0043] Figure 10 For Figure 1 Structure diagram of the shaping assembly of the welding device from a first perspective according to some embodiments;

[0044] Figure 11 For Figure 1 Structure diagram of the shaping assembly of the welding device from a second perspective according to some embodiments;

[0045] Figure 12 For Figure 1 Structure diagram of the jig of the welding device according to some embodiments;

[0046] Figure 13 For Figure 12Structure diagram of the electric core and the adapter sheet in the jig.

[0047] Wherein, 100, welding device; 10, base; 110, handle; 121, first power reversing piece; 122, second power reversing piece; 123, third power reversing piece; 21, first conveying assembly; 211, first moving plate; 212, first sliding structure; 2121, first guide piece; 2122, second guide piece; 213, first driving device; 214, positioning buffer piece; 22, second conveying assembly; 221, second moving plate; 222, second sliding structure; 2221, third guide piece; 2222, fourth guide piece; 2231, adjusting screw; 2232, adjusting nut; 23, third conveying assembly; 231, third moving plate; 232, third sliding structure; 2321, fifth guide piece; 2322, sixth guide piece; 233, second driving device; 30, jig; 31, adapter sheet positioning plate; 40, shaping assembly; 411, first mounting seat; 412, second mounting seat; 420, third driving device; 430, pressing plate; 440, positioning locking structure; 441, locking plate; 442, locking nut; 443, positioning screw; 50, welding mechanism; 61, adapter sheet; 62, first electric core; 621, first welding point; 622, second welding point; 63, second electric core; 631, third welding point; 632, fourth welding point; a, first direction; b, second direction; c, third direction. DETAILED DESCRIPTION

[0048] The embodiments of the technical scheme of the present application will be described in detail below. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0050] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, unless otherwise explicitly and specifically limited, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0051] Reference herein to an "example" means that a particular feature, structure, or characteristic described in connection with the example can be included in at least one example of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same example, nor are separate or alternative examples mutually exclusive of other examples. One of ordinary skill in the art will readily recognize from the disclosure herein, that an example described herein can be incorporated into one or more other examples, everywhere that it is found.

[0052] In the description of the embodiments of the present application, the term "and / or" is merely used to describe an associated relationship between associated objects, and indicates that three relationships can exist, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally indicates that the front and rear associated objects have an "or" relationship.

[0053] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0054] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing", and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of 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 embodiments of the present application can be understood according to the specific circumstances.

[0055] At present, from the development of market situation, the use of batteries is more and more widely, not only the batteries are applied to the energy storage power supply system of hydropower, thermal power, wind power and solar power station, but also widely used in electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, military equipment, aerospace and other fields. With the continuous expansion of the application field of batteries, the market demand is also increasing.

[0056] The existing battery device production is integrated with the production line equipment, and the tab welding machine is integrated with the production line equipment. The cutting, welding, packaging and other processes of the battery device are performed on the production line equipment. Therefore, when the welding machine needs to change the welding effect for parameter debugging, the production time of the production line equipment is occupied, and other processes of the production line equipment also need to be suspended, which affects the production efficiency of the battery device.

[0057] Based on the above considerations, in order to solve the technical problem that the tab welding machine is integrated with the production line equipment, and the production time of the production line equipment is occupied when the welding machine needs to change the welding effect for parameter debugging, the present application provides a welding device and a welding system. The welding device is independent of the production line equipment and can independently weld the tabs of the battery cell. When parameter debugging is performed, the production time of the production line equipment is not occupied.

[0058] For example, please refer to Figure 1 and Figure 2 ; Figure 1 is a structural schematic diagram of the welding device from a first perspective according to some embodiments, Figure 2 is Figure 1 a structural schematic diagram of the welding device from a second perspective.

[0059] In some embodiments, the welding device 100 includes a base 10, a conveying mechanism (not labeled) and a welding mechanism 50. The conveying mechanism includes a first conveying assembly 21 and a second conveying assembly 22. The conveying mechanism is provided with a jig 30. The first conveying assembly 21 is arranged on the bearing surface (not labeled) of the base 10, and the first conveying assembly 21 is configured to convey the jig 30 in a first direction a. The second conveying assembly 22 is connected to the first conveying assembly 21, and the second conveying assembly 22 is configured to convey the jig 30 in a second direction b. The first direction a and the second direction b are different directions parallel to the bearing surface. The welding mechanism 50 is arranged on the base 10.

[0060] The base 10 can be a plate structure, which can be a square, circular or other polygonal plate structure. The shape of the base 10 can be adjusted according to actual needs. The base 10 is used to support and fix the conveying mechanism and the welding mechanism 50. Please refer to Figure 3 and Figure 4 , Figure 3 is Figure 1 a structural schematic diagram of the base from a second perspective in the welding device according to some embodiments, Figure 4 is Figure 1Structure diagram of the second view of the base according to some embodiments of the welding device. In this embodiment, the welding mechanism 50 is fixedly arranged on one side of the bearing surface of the base 10, and the conveying mechanism is fixedly arranged on the other side of the bearing surface of the base 10. The conveying mechanism is arranged corresponding to the welding mechanism 50. The conveying mechanism can move the electric core and the adapter sheet 61 to the welding designated position of the welding mechanism 50 through the movement of the jig 30, and then the welding mechanism 50 performs welding.

[0061] In this embodiment, the first direction a and the second direction b are perpendicular to each other. In other embodiments, the included angle between the first direction a and the second direction b can be any reasonable angle. In this embodiment, the welding mechanism 50 is arranged on one side of the conveying mechanism in the second direction b. The first conveying mechanism is used to move the jig 30 to switch the welding position, and the second conveying assembly 22 is used to adjust the position of the electric core in the second direction b to match the welding designated position. In a specific application scenario, please refer to Figure 12 With Figure 13 ， Figure 12 For Figure 1 Structure diagram of the jig according to some embodiments of the welding device; Figure 13 For Figure 12The structure diagram of the cell and the adapter plate in the jig. The first conveying assembly 21 and the second conveying assembly 22 move the jig 30, so that the jig 30 is located at the specified position of the welding mechanism 50, and then the cell and the adapter plate 61 are placed on the jig 30. Specifically, the adapter plate 61, the first cell 62 and the second cell 63 are placed on the jig 30. The first cell 62 and the second cell 63 are respectively placed on the two sides of the adapter plate 61 and wait for welding. The first cell 62 and the second cell 63 are spaced apart along the first direction a. The first cell 62 has a first welding point 621 and a second welding point 622, and the first welding point 621 and the second welding point 622 are spaced apart along the second direction b. The second cell 63 has a third welding point 631 and a fourth welding point 632, and the third welding point 631 and the fourth welding point 632 are spaced apart along the second direction b. After the placement is completed, the welding mechanism 50 welds the first welding point 621 on the first cell 62. Then, the first conveying assembly 21 moves the jig 30 along the first direction a to switch the welding position, so that the third welding point 631 of the second cell 63 and the adapter plate 61 are located at the specified position of the welding mechanism 50, and the welding mechanism 50 performs welding. Then, the first cell 62, the second cell 63 and the adapter plate 61 are taken out and rotated by 180 degrees and then placed in the jig 30 again. Through the conveying mechanism, the second welding point 622 of the first cell 62 is located at the specified position of the welding mechanism 50, and the welding mechanism 50 performs welding. Then, the first conveying assembly 21 moves the jig 30 along the first direction a to switch the welding position, so that the fourth welding point 632 of the second cell 63 and the adapter plate 61 are located at the specified position of the welding mechanism 50, and the welding mechanism 50 performs welding. Through the above-mentioned conveying mechanism, the welding position is switched multiple times, and the welding of the cell and the adapter plate 61 is completed.

[0062] Through the above-mentioned structure, the jig 30 is used for placing the cell and the adapter plate 61. The first conveying assembly 21 and the second conveying assembly 22 are used for moving the cell and the adapter plate 61 to the specified welding position for welding. The first conveying assembly 21 is also used for switching the welding position. The above-mentioned welding device 100 is independent of the production line equipment, can independently weld the tab of the cell, and can not occupy the production time of the production line equipment when parameter debugging is performed.

[0063] In some embodiments, the conveying mechanism further comprises a third conveying assembly 23 connected to the second conveying assembly 22, and the third conveying assembly 23 is configured to convey the jig 30 along a third direction c. The third direction c intersects the bearing surface.

[0064] The jig 30 is fixedly arranged on the third conveying assembly 23. In the embodiment, the third direction c is perpendicular to the bearing surface. The first conveying assembly 21 is arranged on the base 10, the second conveying assembly 22 is connected to the first conveying assembly 21, and the third conveying assembly 23 is connected to the second conveying assembly 22. The first conveying assembly 21 drives the second conveying assembly 22, the third conveying assembly 23 and the jig 30 to move along the first direction a. The second conveying assembly 22 drives the third conveying assembly 23 and the jig 30 to move along the second direction b. The third conveying assembly 23 drives the jig 30 to move along the third direction c. When the third conveying assembly 23 drives the jig 30 to move along the third direction c, the jig 30 is raised and lowered on the base 10, so that the jig 30 is lifted or lowered to be separated from the welding seat (not shown) of the welding mechanism 50, thereby reducing the risk that the jig 30 is stuck with the welding seat of the welding mechanism 50 when the first conveying assembly 21 switches the welding position.

[0065] As described above, the third conveying assembly 23 can drive the jig 30 to be raised and lowered on the base 10, so that the jig 30 can be lifted or lowered to be separated from the welding seat of the welding mechanism 50 when the welding position needs to be switched, thereby reducing the risk that the jig 30 is stuck with the welding seat of the welding mechanism 50 when the first conveying assembly and the second conveying assembly 22 drive the jig 30 to move horizontally.

[0066] Please refer to Figure 10 , Figure 10 for Figure 1 a structural schematic diagram of the shaping assembly of the welding device according to some embodiments from a first perspective. In some embodiments, the welding device 100 further comprises a shaping assembly 40 arranged on the conveying mechanism, and the shaping assembly 40 comprises a pressing plate 430 configured to move away from or close to the jig 30 to press the battery cell and the adapter plate on the jig 30 during welding.

[0067] In the embodiment, the shaping assembly 40 is arranged on the second conveying assembly 22, and the shaping assembly 40 is arranged correspondingly with the third conveying assembly 23 on the second conveying assembly 22, so that the shaping assembly 40 can drive the pressing plate 430 to move up and down above the jig 30 on the second conveying assembly 22. In some other embodiments, the shaping assembly 40 can also be arranged on the third conveying assembly 23. The number of the pressing plates 430 on the shaping assembly 40 can be one or more.

[0068] Through the above structure, the battery cell and the tab are pressed flat by the pressing plate 430 of the shaping assembly 40 before welding, and the battery cell and the tab are positioned and fixed, so that the accuracy of welding can be improved.

[0069] Please refer to Figure 5 , Figure 5 for Figure 1A structural schematic diagram of a first conveying assembly according to some embodiments of the welding device is shown in a first perspective view of the base. In some embodiments, the first conveying assembly 21 comprises a first moving plate 211, a first sliding structure 212 arranged on a bearing surface and connected to the first moving plate 211, and a first driving device 213 connected to the first moving plate 211. A first power reversing element 121 is arranged on the base 10 and connected to the first driving device 213.

[0070] In the present embodiment, the first moving plate 211 is in the form of a square plate, and in some other embodiments, the first moving plate 211 can also be in the form of a circular plate, a trapezoidal plate, or an irregular polygonal plate, etc. The first driving device 213 guides the first moving plate 211 to move in the first direction a through the first sliding structure 212, wherein the second conveying assembly 22 is fixed on the first moving plate 211. In the present embodiment, the first driving device 213 is a pneumatic cylinder, and in some other embodiments, the first driving device 213 can also be an electric motor, a hydraulic cylinder, etc. The first power reversing element 121 is specifically a manual reversing valve, which can realize manual control of the flow direction of compressed gas in the pneumatic cylinder to reverse the movement of the first moving plate 211. In addition, the first sliding structure 212 can specifically be a sliding rail and a sliding block that cooperate with each other, or a rod and a rod sleeve that cooperate with each other, etc.

[0071] As described above, the first driving device 213 drives the first moving plate 211 to move the jig 30 in the first direction a. In addition, the first power reversing element 121 facilitates manual operation for reversing, which can reduce electrically controlled switches and simplify the structure of the device.

[0072] In some embodiments, the first sliding structure 212 comprises a first guide element 2121 arranged on the bearing surface and a second guide element 2122 connected to the first moving plate 211, the first guide element 2121 and the second guide element 2122 are in sliding connection, and the first guide element 2121 is one of a sliding rail and a sliding block, and the second guide element 2122 is the other one of the sliding rail and the sliding block.

[0073] In this embodiment, the first guide member 2121 is a slide rail, and the second guide member 2122 is a slider. The slider is slidably mounted on the slide rail, and the extension direction of the slide rail is the first direction a. In some other embodiments, the first guide member 2121 can also be a slider, and the second guide member 2122 can be a slide rail. Furthermore, in this embodiment, there are two first sliding structures 212, which are spaced apart on the bearing surface along the second direction b, and the two first sliding structures 212 are respectively connected to both sides of the first moving plate 211. In some other embodiments, the number of first sliding structures 212 can also be one, three, or other reasonable numbers.

[0074] As described above, the first sliding structure 212 includes a first guide member 2121 and a second guide member 2122, which can guide the movement of the first conveying component 21 along the first direction a.

[0075] In some embodiments, the first conveying assembly 21 further includes a positioning buffer 214, which is disposed on the bearing surface and located on one or both sides of the first moving plate 211 along the first direction a.

[0076] In this embodiment, there are two positioning buffers 214, which are disposed on both sides of the first moving plate 211. In some other embodiments, the positioning buffers 214 can be disposed on either side of the first moving plate 211. In a preferred embodiment, the positioning buffer 214 includes a mounting base (not shown) and a positioner (not shown). The mounting base is disposed on the bearing surface, and the positioner is adjustablely disposed on the mounting base. The positioner can be adjusted to position itself in the first direction a of the mounting base. In a specific application scenario, after the first conveying component 21 moves the fixture 30 to the designated position, it can adjust the positioner so that the positioning buffer 214 abuts against the first moving plate 211 to position the fixture 30 in the first direction a, reducing the risk of the battery cell and the adapter plate 61 shaking in the first direction a during the welding process. In addition, the positioning buffer 214 is preferably made of rubber, silicone, or other materials to provide cushioning and protection.

[0077] As mentioned above, the positioning buffer 214 can play a protective and positioning role, improving the accuracy of the welding position.

[0078] Please refer to the following: Figure 6 and Figure 7 , Figure 6 for Figure 1 A schematic diagram of a welding apparatus in which a second conveying component is disposed on a first moving plate according to some embodiments, from a first perspective. Figure 7 for Figure 1A structure diagram of a second conveying assembly according to some embodiments of the welding device is shown in the second view of the first moving plate. In some embodiments, the second conveying assembly 22 comprises: a second moving plate 221; and a second sliding structure 222 arranged on the first moving plate 211 and connected to the second moving plate 221.

[0079] In this embodiment, the second moving plate 221 is an irregular polygonal plate structure. In some other embodiments, the second moving plate 221 can also be a circular plate structure, a trapezoidal plate structure, or other reasonable plate structures. The second sliding structure 222 can be a sliding rail and a sliding block that cooperate with each other, or a rod and a rod sleeve that cooperate with each other, and the like.

[0080] As described above, the second moving plate 221 can drive the jig 30 to move along the second direction b through the second sliding structure 222.

[0081] In some embodiments, the second sliding structure 222 comprises: a third guide 2221 arranged on the first moving plate 211, and a fourth guide 2222 connected to the second moving plate 221, the third guide 2221 and the fourth guide 2222 being in sliding connection; wherein the third guide 2221 is one of a sliding rail and a sliding block, and the fourth guide 2222 is the other of the sliding rail and the sliding block.

[0082] In this embodiment, the third guide 2221 is a sliding rail, and the fourth guide 2222 is a sliding block, the sliding block being slidingly installed on the sliding rail, and the extension direction of the sliding rail being the second direction b. In some other embodiments, the third guide 2221 can be a sliding block, and the fourth guide 2222 can be a sliding rail. In addition, in this embodiment, the number of the second sliding structures 222 is two, the two second sliding structures 222 being arranged on the first moving plate 211 along the first direction a and connected to two sides of the second moving plate 221, respectively. In some other embodiments, the number of the second sliding structures 222 can also be one, three, or other reasonable numbers.

[0083] As described above, the second sliding structure 222 comprises the third guide 2221 and the fourth guide 2222, and can guide the movement of the second conveying assembly 22 along the second direction b.

[0084] In some embodiments, the second conveying assembly 22 further comprises: a positioning screw 2231 rotatably arranged on one of the first moving plate 211 and the second moving plate 221, and a positioning nut 2232 arranged on the other of the first moving plate 211 and the second moving plate 221.

[0085] In the present embodiment, a screw seat (not labeled) is arranged on the first moving plate 211. The adjusting screw 2231 is arranged on the screw seat, and the adjusting nut 2232 is arranged on the second moving plate 221. The adjusting screw 2231 extends along the second direction b. When the adjusting screw 2231 is screwed, the adjusting screw 2231 can be screwed into or out of the adjusting nut 2232 on the second moving plate 221, so that the second moving plate 221 can be moved along the second direction b when the adjusting screw 2231 is screwed. In other embodiments, the screw seat can be arranged on the first moving plate 211, and the adjusting screw 2231 can be arranged on the second moving plate 221.

[0086] The adjusting screw 2231 and the adjusting nut 2232 can be used to finely adjust the position of the jig 30 along the second direction b, thereby improving the accuracy of the position of the battery cell and the adapter plate 61 in the welding position along the second direction b.

[0087] Please refer to Figure 8 and Figure 9 , Figure 8 for Figure 1 a structure diagram of the third conveying assembly according to some embodiments of the welding device viewed from the first perspective of the second moving plate; Figure 9 for Figure 1 a structure diagram of the third conveying assembly according to some embodiments of the welding device viewed from the second perspective of the second moving plate. In some embodiments, the third conveying assembly 23 comprises a third moving plate 231, on which the jig 30 is arranged; a third sliding structure 232, which is arranged on the second moving plate 221 and is connected to the third moving plate 231; a second driving device 233, which is connected to the third moving plate 231; and a second power reversing element 122, which is arranged on the base 10 and is connected to the second driving device 233.

[0088] In the embodiment, the third moving plate 231 is an irregular polygonal plate structure, and in some other embodiments, the first moving plate 211 can also be a circular plate, a trapezoidal plate or other reasonable plate. The second driving device 233 guides the third moving plate 231 to move along the third direction c through the third sliding structure 232, and the third conveying assembly 23 is fixed on the second moving plate 221. In the embodiment, the second driving device 233 is a pneumatic cylinder, and in some other embodiments, the second driving device 233 can also be a motor, a hydraulic cylinder or the like. The second power reversing element 122 is specifically a manual reversing valve, so as to realize manual control of the flow direction of the compressed gas in the pneumatic cylinder to reverse the movement of the third moving plate 231. In addition, the third sliding structure 232 can be a sliding rail and a sliding block matched with each other, or a rod and a rod sleeve matched with each other, and the like.

[0089] As described above, the third moving plate 231 driven by the second driving device can drive the jig 30 to move along the third direction c. In addition, the second power reversing element 122 is convenient for manual operation for reversing, which can reduce the electric control switch and simplify the structure of the device.

[0090] In some embodiments, the third sliding structure 232 includes a fifth guide element 2321 and a sixth guide element 2322 matched with the fifth guide element 2321, the fifth guide element 2321 is arranged on the second moving plate 221, and the sixth guide element 2322 is connected with the third moving plate 231; the fifth guide element 2321 and the sixth guide element 2322 are in sliding connection; wherein the fifth guide element 2321 is one of a guide rod and a guide rod sleeve, and the sixth guide element 2322 is the other one of the guide rod and the guide rod sleeve.

[0091] In the embodiment, the fifth guide element 2321 is a guide rod sleeve, and the sixth guide element 2322 is a guide rod, which is slidably inserted into the guide rod sleeve. The second moving plate 221 also has a sliding through hole, and the guide rod passes through the sliding through hole on the second moving plate 221. When the second driving device 233 drives the third moving plate 231 to move up and down, the guide rod slides in the sliding through hole on the second moving plate 221 and slides in the guide rod sleeve, thereby playing a guiding role. In addition, in the embodiment, the number of the third sliding structure 232 is two, and the two third sliding structures 232 are arranged on the two sides of the third moving plate 231 respectively, and in some other embodiments, the number of the third sliding structure 232 can also be one, three or other numbers. In some other embodiments, the fifth guide element 2321 can also be a guide rod, and the sixth guide element 2322 can also be a guide rod sleeve.

[0092] As described above, the third sliding structure 232 includes a guide rod and a guide rod sleeve, which can guide the movement of the third conveying assembly 23 along the third direction c.

[0093] Please refer to Figure 10 and Figure 11 ,Figure 10 As Figure 1 Structure diagram of the shaping assembly in the welding device according to the first perspective view of some embodiments; Figure 11 As Figure 1 Structure diagram of the shaping assembly in the welding device according to the second perspective view of some embodiments. In some embodiments, the shaping assembly 40 comprises: a first mounting seat 411, the first mounting seat 411 is arranged on the second moving plate 221, a second mounting seat 412, the second mounting seat 412 is slidingly arranged on the first mounting seat 411, and a pressing plate 430 is arranged on the second mounting seat 412; a third driving device 420, the third driving device 420 is connected to the second mounting seat 412; a third power reversing element 123, the third power reversing element 123 is arranged on the base 10, and the third power reversing element 123 is connected to the third driving device 420.

[0094] In the present embodiment, the shaping assembly 40 is arranged on the second moving plate 221, and in some other embodiments, the shaping assembly 40 can also be arranged on the third moving plate 231. The second mounting seat 412 is slidingly arranged on the first mounting seat 411, and specifically, a sliding rail and a protrusion can be formed on the first mounting seat 411 and the second mounting seat 412 to realize the sliding connection. In the present embodiment, the third driving device 420 is a pneumatic cylinder, and in some other embodiments, the third driving device 420 can also be a motor, a hydraulic cylinder, etc. The third power reversing element 123 is specifically a manual reversing valve, so as to realize the manual control of the flow direction of the compressed gas in the pneumatic cylinder to move and reverse the pressing plate 430.

[0095] As mentioned above, the second mounting seat 412 driven by the third driving device 420 can drive the pressing plate 430 to move close to or away from the jig 30. In addition, the third power reversing element 123 facilitates manual operation for reversing, which can reduce the electric control switch and simplify the structure of the device.

[0096] In some embodiments, the shaping assembly 40 further comprises: a positioning and locking structure 440, the positioning and locking structure 440 is arranged on the first mounting seat 411, and the positioning and locking structure 440 is located on one side of the second mounting seat 412 along the third direction c.

[0097] In the embodiment, the positioning and locking structure 440 specifically comprises a locking plate 441, a locking nut 442, and a positioning screw 443. The locking plate 441 is arranged on the first mounting base 411, the locking nut 442 is arranged on the locking plate 441, and the positioning screw 443 is screwed on the locking nut 442. The positioning screw 443 is located on one side of the second mounting base 412. After the shaping assembly 40 controls the pressing plate 430 to press the battery cell and the adapter plate 61 on the jig 30, the positioning screw 443 can be screwed to abut against the second mounting base 412, thereby positioning and locking the second mounting base 412 and the pressing plate 430 on the second mounting base 412, so that the pressing plate 430 can always keep pressing the battery cell and the adapter plate 61 during the welding process.

[0098] After the pressing plate 430 presses the battery cell and the adapter plate 61, the second mounting base 412 can be locked by the positioning and locking structure 440, so as to keep the position of the battery cell and the adapter plate 61 accurate during the welding process.

[0099] In some embodiments, one or more handles 110 are arranged on the base 10 to facilitate the carrying of the welding device 100.

[0100] Please refer to Figure 12 In some embodiments, the jig 30 is provided with an adapter plate positioning plate 31 to fix the adapter plate 61, thereby improving the welding accuracy.

[0101] In a specific application scenario, when welding the battery cell and the adapter plate 61 by the welding device 100, the jig 30 is first moved to the specified position of the welding mechanism 50 by the first conveying assembly 21 and the second conveying assembly 22, and then the jig 30 is lowered to the low position by the third conveying assembly 23. The shaping assembly 40 is controlled to raise the pressing plate 430 to the high position, and the first battery cell 62, the second battery cell 63 and the adapter plate 61 to be welded are placed in the jig 30. Then, the third power reversing piece 123 is manually operated to control the shaping assembly 40, so that the pressing plate 430 is pressed against the battery cell and the adapter plate 61. The welding mechanism 50 is controlled to weld the first welding point 621 of the first battery cell 62. After the welding is completed, the third power reversing piece 123 is manually operated to control the shaping assembly 40 to lift the pressing plate 430. The second power reversing piece 122 is operated to control the third conveying assembly 23 to lift the jig 30. The first power reversing piece 121 is operated to drive the first conveying assembly 21 to move the jig 30 in the first direction a to switch the welding position, so that the third welding point 631 of the second battery cell 63 is located at the specified position of the welding mechanism 50. The second power reversing piece 122 is operated to control the third conveying assembly 23 to lower the jig 30. The third power reversing piece 123 is operated to control the shaping assembly 40 to press the pressing plate 430. The welding mechanism 50 is controlled to weld the third welding point 631 of the second battery cell 63. After the welding is completed, the first battery cell 62, the second battery cell 63 and the adapter plate 61 are taken out and rotated by 180 degrees, and then placed in the jig 30. The above operation is repeated to weld the second welding point 622 of the first battery cell 62 and the fourth welding point 632 of the second battery cell 63. As described above, the welding position is switched by the conveying mechanism multiple times, so that the welding of the battery cell and the adapter plate 61 is completed.

[0102] The application further provides a welding system (not shown). The welding system comprises the welding device 100. It should be noted that the welding device 100 in the embodiment is the welding device 100 described in the above embodiment, which will not be described herein.

[0103] As described above, the jig 30 of the welding system is used to place the battery cell and the adapter plate 61. The first conveying assembly 21 and the second conveying assembly 22 are used to move the battery cell and the adapter plate 61 to the specified welding position for welding. The first conveying assembly 21 and the second conveying assembly 22 are also used to switch the welding position. The welding device 100 described above is independent of the production line equipment, and can independently weld the tab of the battery cell. When the parameter debugging is performed, the production time of the production line equipment is not occupied.

[0104] Finally, in a specific application scenario, the existing lug welding machine and the production line equipment are integrated. The welding device 100 includes a base 10, a conveying mechanism, and a welding mechanism 50. The conveying mechanism is provided with a jig 30, and the conveying mechanism includes a first conveying assembly 21, a second conveying assembly 22, and a third conveying assembly 23. The first conveying assembly 21 is arranged on the bearing surface of the base 10, and the first conveying assembly 21 is configured to convey the jig 30 in the first direction a; the second conveying assembly 22 is connected to the first conveying assembly 21, and the second conveying assembly 22 is configured to convey the jig 30 in the second direction b; wherein the first direction a and the second direction b are perpendicular to each other and parallel to the bearing surface; the welding mechanism 50 is arranged on the base 10. The third conveying assembly 23 is connected to the second conveying assembly 22, and the third conveying assembly 23 is configured to convey the jig 30 in the third direction c; the third direction c is perpendicular to the bearing surface. The welding device 100 further includes a shaping assembly 40, which is arranged on the conveying mechanism and includes a pressing plate 430 configured to move away from or close to the jig 30 to press the battery cell and the adapter plate on the jig 30 during welding. The first conveying assembly 21 further includes a positioning buffer 214 arranged on the bearing surface and located on both sides of the first moving plate 211 in the first direction a. The first conveying assembly 21 includes a first moving plate 211, a first sliding structure 212 arranged on the bearing surface and connected to the first moving plate 211, a first driving device 213 connected to the first moving plate 211, a first power reversing element 121 arranged on the base 10 and connected to the first driving device 213. The second conveying assembly 22 includes a second moving plate 221, and a second sliding structure 222 arranged on the first moving plate 211 and connected to the second moving plate 221. The third conveying assembly 23 includes a third moving plate 231 on which the jig 30 is arranged, a third sliding structure 232 arranged on the second moving plate 221 and connected to the third moving plate 231, a second driving device 233 connected to the third moving plate 231, and a second power reversing element 122 arranged on the base 10 and connected to the second driving device 233.The shaping assembly 40 comprises a first mounting seat 411 arranged on the second moving plate 221, a second mounting seat 412 arranged on the first mounting seat 411 in a sliding mode, and a pressing plate 430 arranged on the second mounting seat 412; a third driving device 420 connected to the second mounting seat 412; and a third power reversing piece 123 arranged on the base 10 and connected to the third driving device 420.

[0105] In the above manner, the jig 30 is used to place the battery cell and the adapter piece 61, and the first conveying assembly 21 and the second conveying assembly 22 are used to move the battery cell and the adapter piece 61 to the welding designated position for welding, and are also used to switch the welding position. The welding device 100 is independent of the production line equipment, and can independently weld the tab of the battery cell. When the parameter debugging is performed, the production time of the production line equipment is not occupied.

[0106] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A welding device, characterized in that, The welding device comprises: a base; a conveying mechanism provided with a jig, the conveying mechanism comprising: a first conveying assembly provided on a bearing surface of the base, the first conveying assembly being configured to convey the jig in a first direction; a second conveying assembly connected to the first conveying assembly, the second conveying assembly being configured to convey the jig in a second direction; wherein the first direction and the second direction are different directions parallel to the bearing surface; a welding mechanism provided on the base.

2. The welding device of claim 1, wherein, The conveying mechanism further comprises: a third conveying assembly connected to the second conveying assembly, the third conveying assembly being configured to convey the jig in a third direction; the third direction intersecting the bearing surface.

3. The welding device of claim 2, wherein, The welding device further comprises: a shaping assembly provided on the conveying mechanism, the shaping assembly comprising a pressing plate configured to move away from or close to the jig to press the battery cell and the adapter plate on the jig during welding.

4. The welding device of claim 3, wherein, The first conveying assembly comprises: a first moving plate; a first sliding structure provided on the bearing surface, the first sliding structure being connected to the first moving plate; a first driving device connected to the first moving plate; a first power reversing element provided on the base, the first power reversing element being connected to the first driving device.

5. The welding device of claim 4, wherein, The first sliding structure comprises: a first guide element and a second guide element cooperating with the first guide element, the first guide element being provided on the bearing surface, the second guide element being connected to the first moving plate; the first guide element and the second guide element being in sliding connection; wherein the first guide element is one of a sliding rail and a sliding block, and the second guide element is the other of a sliding rail and a sliding block.

6. The welding device of claim 4, wherein, The first conveying assembly further comprises: a positioning buffer provided on the bearing surface, the positioning buffer being located on one side or both sides of the first moving plate in the first direction.

7. The welding device of claim 4, wherein, The second conveying assembly comprises: a second moving plate; a second sliding structure provided on the first moving plate, the second sliding structure being connected to the second moving plate.

8. The welding device of claim 7, wherein, The second sliding structure comprises: a third guide element and a fourth guide element cooperating with the third guide element, the third guide element being provided on the first moving plate, the fourth guide element being connected to the second moving plate, the third guide element and the fourth guide element being in sliding connection; wherein the third guide element is one of a sliding rail and a sliding block, and the fourth guide element is the other of a sliding rail and a sliding block.

9. The welding device of claim 7, wherein, The second conveying assembly further comprises: a position adjusting screw and a position adjusting nut cooperating with the position adjusting screw, the position adjusting screw being rotatably provided on one of the first moving plate and the second moving plate, the position adjusting nut being provided on the other of the first moving plate and the second moving plate.

10. The welding device of claim 7, wherein, The third conveying assembly comprises: a third moving plate, the jig being provided on the third moving plate; A third sliding structure is arranged on the second moving plate, and the third sliding structure is connected to the third moving plate; A second driving device is connected to the third moving plate; A second power reversing element is arranged on the base, and the second power reversing element is connected to the second driving device.

11. The welding device of claim 10, wherein, The third sliding structure comprises: A fifth guide element and a sixth guide element matched with the fifth guide element, the fifth guide element is arranged on the second moving plate, and the sixth guide element is connected to the third moving plate; the fifth guide element is in sliding connection with the sixth guide element; The fifth guide element is one of a guide rod and a guide rod sleeve, and the sixth guide element is the other one of the guide rod and the guide rod sleeve.

12. The welding device of claim 10, wherein, The shaping assembly comprises: A first mounting seat is arranged on the second moving plate, A second mounting seat is arranged on the first mounting seat in sliding mode, and the pressing plate is arranged on the second mounting seat; A third driving device is connected to the second mounting seat; A third power reversing element is arranged on the base, and the third power reversing element is connected to the third driving device.

13. The welding device of claim 12, wherein, The shaping assembly further comprises: A positioning and locking structure is arranged on the first mounting seat, and the positioning and locking structure is located on one side of the second mounting seat along the third direction.

14. A welding system characterized by, The welding system comprises the welding device according to any one of claims 1-13.

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