Welding tool for battery module

Abstract

The utility model relates to the technical field of battery welding, and provides a welding tool of a battery module, which is used for fixing a battery and a connecting piece, and comprises a bearing plate, a connecting piece, a connecting piece and a connecting piece, the pressing plate is arranged on the support in a lifting mode. The pressing blocks are arranged on the pressing plate, the pressing blocks abut against the connecting pieces, and the pressing plate is used for tightly pressing the connecting pieces and the battery. The two ends of the first elastic piece are arranged on the pressing plate and the pressing block correspondingly. The first elastic piece is used for providing force for the pressing block to be away from the pressing plate. By means of the technical scheme, the problems that in the prior art, when clamping is conducted, due to the difference of the electric connecting pieces in the machining process, a welding tool cannot completely clamp the electric connecting pieces, and the welding quality is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery welding, and specifically to a welding tool for a battery module. Background Art

[0002] During battery production, multiple different connecting pieces need to be welded to the positive and negative electrodes of the battery. Each type of connecting piece usually has multiple pieces, which need to be welded at specified positions. During welding, not only the accuracy and strength of the welding must be ensured, but also the neatness between the connecting pieces must be ensured. If the position of the connecting piece is offset, the entire battery will become defective, reducing the quality of production.

[0003] In order to better weld the connecting piece to the battery and improve the quality of welding, a corresponding welding tool is designed. However, the existing welding tool achieves positioning by directly pressing the connecting piece against the battery shell. When pressing, due to slight differences in the processing of the electrical connecting piece, some connecting pieces may not be clamped, resulting in a deviation in the welding position. Utility Model Content

[0004] The utility model provides a welding tool for a battery module, which solves the problem in the related art that when clamping, the welding tool cannot fully clamp all the electrical connecting pieces due to the difference in processing of the electrical connecting pieces, thus affecting the welding quality.

[0005] The technical solution of the utility model is as follows:

[0006] A welding tool for a battery module, used for fixing a battery and a connecting piece, comprising:

[0007] Bracket;

[0008] A carrying plate, arranged on the bracket, and used for receiving the battery;

[0009] A pressing plate, which is lifted and arranged on the support;

[0010] A plurality of pressing blocks are arranged on the pressing plate, the pressing blocks abut against the connecting piece, and the pressing plate is used to press the connecting piece and the battery tightly;

[0011] The first elastic member has two ends disposed on the pressing plate and the pressing block respectively, and the first elastic member is used to provide a force for the pressing block to move away from the pressing plate.

[0012] As a further technical solution, the pressing plate is provided with a plurality of positioning holes, and the pressing block corresponds to the positions of the positioning holes.

[0013] As a further technical solution, the pressing block is a hollow structure, and the pressing block is concentric with the positioning hole.

[0014] As a further technical solution, it also includes:

[0015] A plurality of cushion blocks are arranged on the pressure plate;

[0016] A plurality of first telescopic members are provided on the bracket. The first telescopic members have a telescopic end, and the telescopic end is connected to the cushion block.

[0017] As a further technical solution, it also includes:

[0018] There are a plurality of positioning blocks, which are arranged on one side of the bearing plate close to the pressing plate, and the positioning blocks are used to locate the installation position of the battery.

[0019] As a further technical solution, it also includes:

[0020] A plurality of guide rails are arranged on the pressure plate;

[0021] The slider is arranged on the bracket.

[0022] As a further technical solution, it also includes:

[0023] There are several feet, which are arranged on the bracket.

[0024] The working principle and beneficial effects of the utility model are:

[0025] In the utility model, the bracket is used to receive the carrier plate, so as to ensure that the battery on the carrier plate can be stably received, and to prevent the battery from sliding during the welding process and affecting the quality of welding. When welding, the pressure plate will move downward so that the pressing block will tightly abut against the connecting piece, so as to ensure that the connecting piece will not move during welding. Due to the slight error of the connecting piece in the processing link, the connecting piece may be slightly deformed, so a first elastic member is provided. When the pressure plate is pressed downward, the pressing block will abut against the connecting piece, and the first elastic member will be compressed at this time. Even if the thickness of the connecting pieces is different, as long as it is within the elastic range of the first elastic member, the connecting piece can be firmly fixed, ensuring the progress of welding, preventing the situation where the connecting piece cannot be pressed by the pressing block due to different thickness or deformation, and improving the fixing quality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2This is a schematic diagram of the structure of the utility model without the pressing plate and the battery;

[0029] Figure 3 It is a schematic diagram of the structure of the battery and the pressing block in the utility model;

[0030] Figure 4 It is a structural schematic diagram of the middle pressure block of the utility model.

[0031] In the figure: 1, battery, 2, connecting piece, 3, bracket, 4, bearing plate, 5, pressure plate, 6, pressure block, 7, first elastic member, 8, positioning hole, 9, cushion block, 10, first telescopic member, 11, telescopic end, 12, positioning block, 13, guide rail, 14, slider, 15, foot. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, they can also be understood as further technical solutions without paying creative work. In some figures, components with the same structure or function are only schematically illustrated, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0033] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0034] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] Reference Figure 1~Figure 4, which is the first embodiment of the utility model, proposes a welding tool for a battery 1 module, which is used to fix the battery 1 and the connecting piece 2, including: a load plate 4 is arranged on a bracket 3, and the load plate 4 is used to receive the battery 1; a pressing plate 5 is arranged on the bracket 3 for lifting; there are a plurality of pressing blocks 6, which are arranged on the pressing plate 5, and the pressing blocks 6 are in contact with the connecting piece 2, and the pressing plate 5 is used to press the connecting piece 2 and the battery 1. The two ends of the first elastic member 7 are respectively arranged on the pressing plate 5 and the pressing block 6, and the first elastic member 7 is used to provide a force to keep the pressing block 6 away from the pressing plate 5.

[0036] In this embodiment, the bracket 3 is used to receive the carrier plate 4, so as to ensure that the battery 1 on the carrier plate 4 can be stably received, and to prevent the battery 1 from sliding during the welding process and affecting the quality of the welding. When welding, the pressing plate 5 will move downward, so that the pressing block 6 will tightly abut against the connecting piece 2, and ensure that the connecting piece 2 will not move during welding. Due to the slight error of the connecting piece 2 in the processing link, the connecting piece 2 may be slightly deformed, so a first elastic member 7 is provided. When the pressing plate 5 is pressed downward, the pressing block 6 will abut against the connecting piece 2, and the first elastic member 7 will be compressed at this time. Even if the thickness of the connecting pieces 2 is different, as long as it is still within the elastic range of the first elastic member 7, the connecting piece 2 can be firmly fixed, ensuring the progress of welding, preventing the situation where part of the connecting piece 2 cannot be pressed by the pressing block 6 due to the different thickness or deformation of the connecting piece 2, and improving the fixing quality of the device.

[0037] As a further technical solution, the pressing plate 5 is provided with a plurality of positioning holes 8 , and the pressing block 6 corresponds to the positions of the positioning holes 8 .

[0038] In this embodiment, welding operations are usually completed automatically by welding robots. The positioning holes 8 can not only ensure that the welding robots can quickly identify the welding positions, but also enable the welding parts of the welding robots to pass through the pressing plate 5 directly, thereby stably implementing the welding operations. At the same time, there are only a number of welding holes on the side of the pressing plate 5. If the welding robot makes a mistake in identification, the staff can find it immediately and modify the corresponding robot, thereby ensuring that the welding operation can run stably and improving the quality of welding.

[0039] As a further technical solution, the pressing block 6 is a hollow structure, and the pressing block 6 is concentric with the positioning hole 8 .

[0040] In this embodiment, the pressing block 6 is also a hollow structure and is concentric with the positioning hole 8, so that after the welding robot identifies the position to be welded through the positioning hole 8, the welding head can directly contact and weld the connecting piece 2 and the battery 1 through the positioning and hollow pressing block 6. The design of the hollow structure reduces the welding difficulty of the welding robot, and at the same time can ensure that the welding position is more accurate. The operator can also directly observe the position and status of the connecting piece 2 to ensure the quality of welding.

[0041] As a further technical solution, it also includes: a plurality of cushion blocks 9 are arranged on the pressure plate 5; a plurality of first telescopic members 10 are arranged on the bracket 3, and the first telescopic member 10 has a telescopic end 11, and the telescopic end 11 is connected to the cushion block 9.

[0042] In this embodiment, the pad 9 is installed on the pressure plate 5 by bolts. By installing pads 9 of different thicknesses, the tooling can be suitable for batteries 1 of different sizes, thereby improving the scope of application. The first telescopic member 10 is a cylinder, or an oil cylinder or other workpiece. The movement of the first telescopic member 10 can drive the pad 9 and the pressure plate 5 on the pad 9 to move stably, thereby improving the stability of the tooling.

[0043] As a further technical solution, it also includes: there are a plurality of positioning blocks 12 arranged on a side of the carrier plate 4 close to the pressure plate 5 , and the positioning blocks 12 are used to locate the installation position of the battery 1 .

[0044] In the present embodiment, there are several positioning blocks 12, and the shapes and sizes are different. The positioning blocks 12 are L-shaped for positioning the four corners of the battery 1, and are also bar-shaped for positioning the sides of the battery 1. Through several different positioning blocks 12, not only can the time for installing the battery 1 on the supporting plate 4 be shortened, but also the accuracy of the installation position can be ensured, the quality of welding is improved, the welding time is shortened, and the installation difficulty of the user can be reduced.

[0045] As a further technical solution, it also includes: a plurality of guide rails 13 are arranged on the pressure plate 5; and a slider 14 is arranged on the bracket 3.

[0046] In this embodiment, the first telescopic member 10 is used to drive the pressure plate 5 to rise and fall. Since the pressure plate 5 itself is heavy and the weight is uneven, the guide rail 13 and the slider 14 are designed to ensure the lifting and lowering position of the pressure plate 5. At the same time, it can also assist the first telescopic member 10 to perform stable lifting and lowering to prevent the first telescopic member 10 from being damaged due to uneven force. At the same time, due to the guidance of the guide rail 13 and the slider 14, the movement accuracy of the pressure plate 5 can be improved, thereby increasing the service life of the tooling.

[0047] As a further technical solution, it also includes: there are a plurality of feet 15 arranged on the bracket 3.

[0048] In this embodiment, there are a plurality of feet 15, and the height of the feet 15 can be adjusted at any time, so that the tooling can adapt to uneven ground and improve the stability of the tooling.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A welding tool for a battery module, used for fixing a battery (1) and a connecting piece (2), characterized in that: include: Bracket (3); A carrying plate (4) is arranged on the bracket (3), and the carrying plate (4) is used to receive the battery (1); A pressing plate (5) which is arranged to be lifted and lowered on the support (3); A plurality of pressing blocks (6) are arranged on the pressing plate (5); the pressing blocks (6) abut against the connecting piece (2); and the pressing plate (5) is used to press the connecting piece (2) and the battery (1) tightly; A first elastic member (7), two ends of which are respectively arranged on the pressing plate (5) and the pressing block (6), and the first elastic member (7) is used to provide a force for the pressing block (6) to move away from the pressing plate (5).

2. A welding tool for a battery module according to claim 1, characterized in that: The pressing plate (5) is provided with a plurality of positioning holes (8), and the positions of the pressing blocks (6) correspond to the positioning holes (8).

3. A welding tool for a battery module according to claim 2, characterized in that: The pressing block (6) is a hollow structure, and the pressing block (6) is concentric with the positioning hole (8).

4. The welding tool for a battery module according to claim 1, characterized in that: Also includes: A plurality of cushion blocks (9) are arranged on the pressure plate (5); A plurality of first telescopic members (10) are arranged on the bracket (3); the first telescopic members (10) have a telescopic end (11); and the telescopic end (11) is connected to the cushion block (9).

5. The welding tool for a battery module according to claim 1, characterized in that: Also includes: There are a plurality of positioning blocks (12) disposed on a side of the carrier plate (4) close to the pressure plate (5), and the positioning blocks (12) are used to locate the installation position of the battery (1).

6. The welding tool for a battery module according to claim 1, characterized in that: Also includes: A plurality of guide rails (13) are provided on the pressure plate (5); The sliding block (14) is arranged on the bracket (3).

7. The welding tool for a battery module according to claim 1, characterized in that: Also includes: There are a plurality of feet (15) arranged on the bracket (3).

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