Welding pressure head and welding device

Abstract

The utility model discloses a welding pressure head which comprises a mounting seat and a plurality of pressure heads, the plurality of pressure heads are movably mounted on the mounting seat, one end of each pressure head is provided with a pressing part, and the distance between the pressing part of each pressure head and the mounting seat is adjustable. According to the utility model, the rapid switching of the pressure head is realized, and the risks of insufficient soldering and offset welding failure are avoided. The utility model further discloses a welding device.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a welding pressure head and a welding device. Background Art

[0002] As the core component of new energy vehicles, the safety, working stability and reliability of new energy power batteries directly affect the performance and safety of new energy electric vehicles. Busbar welding is an important process in the assembly of new energy power batteries. Its welding quality and efficiency directly affect the current capacity of new energy power batteries. In order to ensure the Busbar welding effect, the use of welding pressure heads can avoid various quality problems caused by the gap between the busbar and the pole, thereby ensuring the welding yield.

[0003] The existing welding pressure head is only suitable for welding positive and negative electrodes with the same or similar structures, especially for cylindrical batteries, whose positive and negative electrode structures and positive and negative electrode welding methods are quite different. If the existing welding pressure head is matched, the positive and negative electrode pressure heads need to be manually disassembled and replaced during the welding process, which reduces the welding efficiency; and the existing pressure head is a bottom-closed structure. If it is used in cylindrical projects, there are risks such as light blocking, biased welding, and false welding. Therefore, in order to ensure the Busbar welding effect and production efficiency of different positive and negative electrode welding methods, a new welding pressure head needs to be designed. Utility Model Content

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a welding pressure head and a welding device to achieve rapid switching of the pressure head and avoid the risks of cold welding and welding failure.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A welding pressure head comprises a mounting seat and a plurality of pressure heads, wherein the plurality of pressure heads are movably mounted on the mounting seat, a pressing portion is provided at one end of the pressure head, and the distance between the pressing portion of each pressure head and the mounting seat is adjustable.

[0007] In one embodiment, the mounting seat is provided with a plurality of through holes, and one end of the pressure head away from the pressing portion is fixedly connected to a guide column. The pressure head passes through the through hole via the guide column and is slidably connected to the mounting seat to adjust the distance between the pressing portion and the mounting seat.

[0008] In one embodiment, the mounting seat is further provided with a limiting structure corresponding to the pressure head, and the limiting structure is used to fix the pressure head after the distance is adjusted.

[0009] In one embodiment, a mounting groove is provided on the mounting seat, and the limiting structure is arranged in the mounting groove.

[0010] In one embodiment, the limiting structure includes a limiting buckle, and a slot is provided on one side of the limiting buckle. The slot passes through the opposite ends of the limiting buckle along the moving direction of the pressure head. The guide column can pass through the slot and be detachably connected to the limiting buckle, thereby fixing the pressure head after the distance is adjusted.

[0011] In one embodiment, a limit block is provided at one end of the guide column away from the pressure head, the size of the limit block is larger than the size of the slot and the through hole, the guide column is overlapped with the mounting seat or the limit buckle through the limit block, and a spring is sleeved on the guide column, and the spring clamp is arranged between the pressure head and the mounting seat.

[0012] In one embodiment, the plurality of pressure heads include at least one positive pressure head and one negative pressure head.

[0013] The utility model also provides a welding device, comprising the welding pressure head as described above.

[0014] In one embodiment, the welding device further includes a base and a processing frame, wherein the processing frame is mounted on the base, a processing table is provided on the base, the processing table is used to place the workpiece to be processed, and the welding pressure head is mounted on the processing frame.

[0015] In one embodiment, a mounting rod is provided on the processing frame, and the welding pressure head is mounted on the mounting rod.

[0016] The beneficial effect of the utility model is that a plurality of pressing heads are movably mounted on a mounting seat, so that the distance between the pressing portion of each pressing head and the mounting seat can be adjusted. When welding a certain position on a workpiece to be processed is required, the distance between the pressing portion of the pressing head at other positions and the mounting seat is adjusted so that the pressing portion of the pressing head at other positions is away from the workpiece to be processed, thereby completing the welding at the required position and realizing rapid switching between the pressing heads. The device has good compatibility and can be applied to a variety of welding requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the positive electrode pressure head in the welding pressure head of the embodiment of the utility model during downward pressure welding;

[0019] Figure 2 yes Figure 1 Schematic diagram of the decomposition structure;

[0020] Figure 3 yes Figure 1 A front view of the welding pressure head installed on the welding device;

[0021] Figure 4 yes Figure 3 The enlarged view at A;

[0022] Figure 5 This is an enlarged view of the negative electrode pressure head in the welding pressure head during downward pressure welding.

[0023] In the figure: 1. welding pressure head; 11. mounting seat; 111. through hole; 112. mounting groove; 12. pressure head; 12A. positive pressure head; 12B. negative pressure head; 121. pressing part; 13. guide column; 14. limit buckle; 141. slot; 15. limit block; 16. spring; 2. base; 3. processing frame; 4. processing table; 5. mounting rod; 6. workpiece to be processed. DETAILED DESCRIPTION

[0024] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0027] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0028] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0029] The utility model provides a welding pressure head 1, such as Figure 1 and Figure 2 As shown, it includes a mounting seat 11 and a plurality of pressing heads 12. The plurality of pressing heads 12 are movably mounted on the mounting seat 11. A pressing portion 121 is provided at one end of the pressing head 12. The distance between the pressing portion 121 of each pressing head 12 and the mounting seat 11 is adjustable. In this example, the plurality of pressing heads 12 are movably mounted on the mounting seat 11, so that the distance between the pressing portion 121 of each pressing head 12 and the mounting seat 11 is adjustable. When it is necessary to weld a certain position on the workpiece 6 to be processed, the distance between the pressing portion 121 of the pressing head 12 at other positions and the mounting seat 11 is adjusted so that the pressing portion 121 of the pressing head 12 at other positions is away from the workpiece 6 to be processed, ensuring that only the pressing portion 121 of the pressing head 12 at the welding position contacts the workpiece 6 to complete the welding at the position to be welded, thereby achieving rapid switching between the pressing heads 12. The device has good compatibility and can be applied to a variety of welding requirements. Specifically, as Figure 4 and Figure 5 As shown, the distance between the pressing portion 121 of a pressure head 12 (positive pressure head 12A) and the mounting seat 11 is X, and the distance between the pressing portion 121 of a pressure head 12 (negative pressure head 12B) and the mounting seat 11 is Y. When welding is performed through the positive pressure head 12A, the distance between the pressing portion 121 of the negative pressure head 12B and the mounting seat 11 is adjusted so that the pressing portion 121 of the negative pressure head 12B is away from the workpiece 6 (negative pressure head 12A). 2B approaches the mounting seat 11), at this time, X is greater than Y, and the downward pressure welding of the positive pressure head 12A is realized; conversely, when welding is to be performed through the negative pressure head 12B, the distance between the pressing portion 121 of the positive pressure head 12A and the mounting seat 11 is adjusted so that the pressing portion 121 of the positive pressure head 12A is away from the workpiece 6 to be processed (the positive pressure head 12A approaches the mounting seat 11), at this time, Y is greater than X, and the downward pressure welding of the negative pressure head 12B is realized.

[0030] As an implementation method, Figure 1 and Figure 2 As shown, the mounting seat 11 is provided with a plurality of through holes 111, and one end of the pressure head 12 away from the pressing portion 121 is fixedly connected with a guide column 13, and the pressure head 12 passes through the through hole 111 through the guide column 13 and is slidably connected to the mounting seat 11 to adjust the distance between the pressing portion 121 and the mounting seat 11. Specifically, as Figure 4 and Figure 5As shown, the welding pressure head 1 includes three pressure heads 12, which are the negative pressure head 12B, the positive pressure head 12A and the negative pressure head 12B in sequence. The positive pressure head 12A and the negative pressure head 12B can slide along the through hole 111 on the mounting seat 11 through their respective guide pillars 13, so as to adjust the distance between the pressing part 121 of the positive pressure head 12A and the pressing part 121 of the negative pressure head 12B and the mounting seat 11. When the positive pressure head 12A is used for processing, the distance X between the pressing part 121 of the positive pressure head 12A and the mounting seat 11 is greater than the distance Y between the pressing part 121 of the negative pressure head 12B and the mounting seat 11; when the negative pressure head 12B is used for processing, the distance Y between the pressing part 121 of the negative pressure head 12B and the mounting seat 11 is greater than the distance X between the pressing part 121 of the positive pressure head 12A and the mounting seat 11.

[0031] The shapes of the pressure heads 12 may be the same, partially the same, or different, which is not limited here. The pressure head 12 is fixedly connected to one end away from the pressing portion 121 with at least two guide pillars 13. The mounting seat 11 has at least two through holes 111 corresponding to one pressure head 12. The through holes 111 and the guide pillars 13 are arranged one by one, so that one pressure head 12 can be slidably connected to the mounting seat 11 through at least two guide pillars 13, thereby improving the balance and preventing the pressure head 12 from tilting.

[0032] As an implementation manner, the mounting seat 11 is further provided with a limiting structure corresponding to the pressure head 12 , and the limiting structure is used to fix the pressure head 12 after the distance is adjusted.

[0033] As an implementation method, Figure 1 and Figure 2 As shown, a mounting groove 112 is provided on the mounting seat 11 , and a limiting structure is arranged in the mounting groove 112 .

[0034] As an implementation method, Figure 1 and Figure 2 As shown, the limiting structure includes a limiting buckle 14, and a slot 141 is provided on one side of the limiting buckle 14. The slot 141 passes through the opposite ends of the limiting buckle 14 along the moving direction of the pressure head 12. The guide column 13 can pass through the slot 141 and be detachably connected to the limiting buckle 14, so as to fix the pressure head 12 after the distance is adjusted; the slot 141 corresponds to the through hole 111, so that the guide column 13 passes through the through hole 111 and the slot 141 in sequence and is detachably connected to the limiting buckle 14.

[0035] As an implementation method, Figures 1 to 5As shown, a limit block 15 is provided at one end of the guide post 13 away from the pressure head 12. The size of the limit block 15 is larger than the size of the slot 141 and the through hole 111. The guide post 13 is overlapped with the mounting seat 11 or the limit buckle 14 through the limit block 15. A spring 16 is sleeved on the guide post 13, and the spring 16 is clamped between the pressure head 12 and the mounting seat 11. When the positive pressure head 12A needs to be used for welding, the guide post 13 on the negative pressure head 12B is first pulled up, and then the guide post 13 is inserted into the limit buckle 14 along the slot 141 on the limit buckle 14 of the negative pressure head 12B, and the guide post 13 is loosened. The limit block 15 on the guide post 13 overlaps with the surface of the limit buckle 14 of the negative pressure head 12B, thereby lifting the negative pressure head 12B, thereby adjusting the distance Y (as shown in FIG. 1 ) between the pressing portion 121 of the negative pressure head 12B and the mounting seat 11. Figure 4 As shown), and then the processing operation is performed through the positive pressure head 12A; when the negative pressure head 12B is needed, the guide column 13 on the positive pressure head 12A is first pulled up, and then the guide column 13 is inserted into the limit buckle 14 along the slot 141 on the limit buckle 14 of the positive pressure head 12A, and the guide column 13 is released. The limit block 15 on the guide column 13 overlaps with the surface of the limit buckle 14 of the positive pressure head 12A, so that the positive pressure head 12A is lifted, and the distance X between the pressing portion 121 of the positive pressure head 12A and the mounting seat 11 is adjusted (as shown). Figure 5 As shown), and then the processing operation is carried out through the negative electrode press head 12B.

[0036] As an implementation method, Figure 1 As shown, the plurality of pressure heads 12 include at least one positive pressure head 12A and one negative pressure head 12B. The number of the positive pressure heads 12A and the number of the negative pressure heads 12B can be reasonably arranged according to actual needs and are not limited here.

[0037] The utility model also provides a welding device, such as Figure 3 As shown, it comprises the welding pressure head 1 as described above.

[0038] As an implementation method, Figure 3 As shown, the welding device also includes a base 2 and a processing frame 3. The processing frame 3 is installed on the base 2. A processing table 4 is provided on the base 2. The processing table 4 is used to place a workpiece 6 to be processed. The workpiece 6 to be processed can be a busbar. The welding pressure head 1 is installed on the processing frame 3.

[0039] As an implementation method, Figures 3 to 5 As shown, a mounting rod 5 is provided on the processing frame 3, and the welding pressure head 1 is mounted on the mounting rod 5. Specifically, the mounting rod 5 is connected to the mounting seat 11 on the welding pressure head 1, and the mounting rod 5 drives the mounting seat 11 to move, thereby driving the welding pressure head 1 to move.

[0040] As an implementation method, the mounting seat 11 can be made of insulating material, such as bakelite, which has the characteristics of light weight, corrosion resistance, easy processing, long service life, wear resistance, and low manual operation intensity; the pressure head 12 is made of copper, the surface of which is smooth, easy to clean, and not prone to accumulation of welding slag; the limit buckle 14 can be made of plastic parts, which have a certain amount of mobility and can effectively fit the exposed guide rod part above the mounting seat 11; the spring 16 is selected according to the pressure requirement; the bottom of the pressure head 12 is an open structure, so that the pressure head 12 will not have the risk of blocking light during the welding process, and it is convenient to observe during welding to avoid the occurrence of cold welding and biased welding.

[0041] The plurality of pressing heads 12 of the utility model are movably mounted on the mounting seat 11, so that the distance between the pressing portion 121 of each pressing head 12 and the mounting seat 11 can be adjusted. When welding is required at a certain position on the workpiece 6 to be processed, the distance between the pressing portion 121 of the pressing head 12 at other positions and the mounting seat 11 is adjusted so that the pressing portion 121 of the pressing head 12 at other positions is away from the workpiece 6 to be processed, thereby completing the welding at the required position and realizing rapid switching between the pressing heads 12. The device has good compatibility and can be applied to various welding requirements.

[0042] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to the technical contents disclosed above without departing from the scope of the technical solution of the present invention, which are equivalent embodiments of equivalent changes. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A welding pressure head, characterized in that: The invention comprises a mounting seat (11) and a plurality of pressing heads (12), wherein the plurality of pressing heads (12) are movably mounted on the mounting seat (11), a pressing portion (121) is provided at one end of the pressing head (12), and the distance between the pressing portion (121) of each pressing head (12) and the mounting seat (11) is adjustable.

2. The welding pressure head according to claim 1, characterized in that: The mounting seat (11) is provided with a plurality of through holes (111); one end of the pressure head (12) away from the pressing portion (121) is fixedly connected to a guide column (13); the pressure head (12) passes through the through hole (111) via the guide column (13) and is slidably connected to the mounting seat (11) so as to adjust the distance between the pressing portion (121) and the mounting seat (11).

3. The welding pressure head according to claim 2, characterized in that: The mounting seat (11) is also provided with a limiting structure arranged corresponding to the pressure head (12), and the limiting structure is used to fix the pressure head (12) after the distance is adjusted.

4. The welding pressure head according to claim 3, characterized in that: The mounting seat (11) is provided with a mounting groove (112), and the limiting structure is arranged in the mounting groove (112).

5. The welding pressure head according to claim 3 or 4, characterized in that: The limiting structure comprises a limiting buckle (14), one side of the limiting buckle (14) is provided with a slot (141), the slot (141) passes through the two opposite ends of the limiting buckle (14) along the moving direction of the pressure head (12), and the guide column (13) can pass through the slot (141) and be detachably connected to the limiting buckle (14), so as to fix the pressure head (12) after the distance is adjusted.

6. The welding pressure head according to claim 5, characterized in that: A limit block (15) is provided at one end of the guide column (13) away from the pressure head (12); the size of the limit block (15) is larger than the size of the slot (141) and the through hole (111); the guide column (13) is overlapped with the mounting seat (11) or the limit buckle (14) through the limit block (15); a spring (16) is sleeved on the guide column (13); and the spring (16) is clamped between the pressure head (12) and the mounting seat (11).

7. The welding pressure head according to claim 1, characterized in that: The plurality of pressure heads (12) include at least one positive electrode pressure head (12A) and one negative electrode pressure head (12B).

8. A welding device, characterized in that: It comprises a welding pressure head (1) as described in any one of claims 1 to 7.

9. The welding device according to claim 8, characterized in that The welding device further comprises a base (2) and a processing frame (3), wherein the processing frame (3) is mounted on the base (2), a processing table (4) is arranged on the base (2), and the processing table (4) is used to place a workpiece (6) to be processed, and the welding pressure head (1) is mounted on the processing frame (3).

10. The welding device according to claim 9, characterized in that The processing frame (3) is provided with a mounting rod (5), and the welding pressure head (1) is mounted on the mounting rod (5).

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