Battery module welding auxiliary device

Abstract

The utility model discloses a battery module welding auxiliary device which comprises an annular guide rail, a welding mechanism connected with the annular guide rail in a sliding mode, a carrying table mechanism arranged in the center of the annular guide rail and a power unit driving the carrying table mechanism to rotate in the middle of the annular guide rail. The carrying table mechanism comprises a bottom plate, two fixed end plates connected to the bottom plate, a movable plate arranged between the two fixed end plates, and a push rod driving the movable plate to move close to or away from the fixed end plates. Angle welding operation can be carried out, a welding part is subjected to annular displacement adjustment of the annular guide rail, front-back displacement adjustment of the linear sliding rail and lifting displacement operation of the telescopic air cylinder at the same time, and therefore the welding part can carry out annular displacement, front-back displacement and lifting displacement in a matched mode, and welding point positions can be flexibly changed in a multi-angle and multi-direction mode. And the welding adaptability is high, and the welding quality and the welding efficiency are excellent.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing, in particular to a battery module welding auxiliary device. Background Art

[0002] With the rapid development of the new energy industry, lithium batteries, as its core component, have been widely used in electric vehicles, energy storage systems and other fields; lithium batteries are composed of positive electrodes, negative electrodes, separators and electrolytes, among which the positive and negative electrodes are composed of multiple layers of electrode sheets stacked together, and each electrode sheet contains electrode active materials, conductive agents and adhesives. When lithium battery modules are processed and produced, they usually need to be welded using welding equipment.

[0003] As an important component of lithium batteries, the welding quality of lithium battery modules directly affects the performance and safety of lithium batteries. Lithium battery welding equipment is a device used to weld and connect the electrode sheets in lithium battery cells or battery packs to the battery leads. Traditional welding equipment cannot perform stable welding operations on the welding points of battery modules in multiple directions and angles. The direction adjustment and adaptation performance are insufficient, which affects the welding quality and welding efficiency. Utility Model Content

[0004] The utility model aims to provide a battery module welding auxiliary device, which is convenient for welding lithium battery components in multiple directions and angles and has high welding adaptability.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A battery module welding auxiliary device includes an annular guide rail, a welding mechanism slidably connected to the annular guide rail, a platform mechanism arranged at the center of the annular guide rail, and a power unit that drives the platform mechanism to rotate in the middle of the annular guide rail; wherein the platform mechanism includes a base plate, two fixed end plates connected to the base plate, a movable plate arranged between the two fixed end plates, and a push rod that drives the movable plate to move closer to or away from the fixed end plate.

[0007] Furthermore: the welding mechanism includes: a slider slidably connected to the annular guide rail, a telescopic cylinder connected to the slider, and a welding component connected to the other end of the telescopic cylinder.

[0008] Furthermore: a telescopic guide rod is provided between the welding component and the sliding block.

[0009] Furthermore: the slider is connected to the telescopic cylinder via a linear guide rail, the linear guide rail is parallel to the central axis of the annular guide rail, and the non-telescopic end of the telescopic cylinder can move back and forth in a limited manner in the linear guide rail.

[0010] Furthermore: the first end of the push rod is connected with the shaft hole of the movable plate by clearance fit, and the second end is connected with the fixed end plate by thread.

[0011] Furthermore: the second end of the push rod extends outwardly and is connected to a handle.

[0012] Furthermore: it also includes an L-shaped base, one end of the platform mechanism is arranged on the vertical section of the L-shaped base, and the annular guide rail is arranged on the horizontal section of the L-shaped base.

[0013] Further: the power unit is a stepping motor.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model can control the rotation of the loading mechanism through a stepping motor, and the lithium battery module is placed on the bottom plate, which is fixed and clamped by a movable plate to perform angle welding operations. The welding parts can be adjusted by the annular displacement of the annular guide rail, and at the same time adjusted by the front and rear displacement of the linear slide rail, and the lifting and lowering displacement of the telescopic cylinder, so that the welding parts can be adaptively displaced in annular, front and rear, and lifting, and the welding points can be flexibly changed at multiple angles and in multiple directions. The welding adaptability is high, and the welding quality and welding efficiency are excellent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged view of the

[0018] Figure 3 This is a schematic diagram of the structure of the utility model from another angle;

[0019] In the figure: 1-annular guide rail, 2-welding mechanism, 21-slider, 22-telescopic cylinder, 23-welding component, 24-telescopic guide rod, 25-linear guide rail, 3-carrier mechanism, 31-bottom plate, 32-fixed end plate, 33-movable plate, 34-push rod, 4-power unit, 5-L-type base, 6-electric guide rail. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate directions or positional relationships 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 describing the present utility model and simplifying the 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 cannot be understood as a limitation on the present utility model.

[0022] See also Figure 1-3 In this embodiment, a battery module welding auxiliary device includes a circular guide rail 1, a welding mechanism 2 slidably connected to the circular guide rail 1, a platform mechanism 3 arranged at the center of the circular guide rail 1, a power unit 4 driving the platform mechanism 3 to rotate in the middle of the circular guide rail 1, and an L-shaped base supporting the circular guide rail 1 and the platform mechanism 3. The circular guide rail 1 is an electric guide rail. Among them:

[0023] The platform mechanism 3 includes a bottom plate 31, two fixed end plates 32 connected at both ends of the bottom plate 31, a movable plate 33 disposed between the two fixed end plates 32, and a push rod 34 that drives the movable plate 33 to move closer to or away from the fixed end plates. The battery is clamped and positioned by the fixed end plates 32 and the movable plate 33, and the push rod 34 provides a clamping force and can be adjusted according to the size of the battery, with strong versatility. The welding mechanism 2 can move circumferentially under the drive of the annular guide rail 1, and the platform mechanism 3 can also rotate, thereby changing the welding angle of the battery.

[0024] Furthermore, the welding mechanism 2 includes: a slider 21 slidably connected to the annular guide rail 1, a telescopic cylinder 22 connected to the slider 21, and a welding component 23 connected to the other end of the telescopic cylinder 22. The welding component 23 is a welding gun, which is driven by the telescopic cylinder 22 to move closer to or away from the carrier mechanism 3 to change the welding distance.

[0025] Furthermore, a telescopic guide rod 24 is provided between the welding component 23 and the slide block 21. The telescopic guide rod 24 improves the stability of the welding gun during the lifting movement.

[0026] Furthermore, the slider 21 is connected to the telescopic cylinder 22 via a linear guide 25, which is parallel to the central axis of the annular guide 1, and the non-telescopic end of the telescopic cylinder 22 can move back and forth in a limited manner in the linear guide 25. The linear guide 25 is an electric guide, which drives the welding gun to move axially to change the welding angle.

[0027] Furthermore, the first end of the push rod 34 is connected with the shaft hole of the movable plate 33 by clearance fit, and the second end is threadedly connected with the fixed end plate 32. The second end of the push rod 34 extends outward and is connected with a handle, and the position of the movable plate 33 on the bottom plate 31 can be adjusted by turning the handle, so as to clamp the battery.

[0028] Furthermore, the auxiliary device also includes an L-shaped base 5, one end of the platform mechanism 3 is arranged on the vertical section of the L-shaped base 5, and is driven to rotate by an annular electric guide rail 6, and the annular guide rail 1 is fixed to the horizontal section of the L-shaped base 5 through an arc seat.

[0029] Furthermore, the power unit 4 is a stepping motor.

[0030] When the utility model is in operation, the battery module to be welded is first placed on the bottom plate 31, and the handle of the push rod 34 is rotated to clamp the battery module; the welding distance is adjusted by the telescopic cylinder 22, and the position of the welding point is adjusted by the linear guide rail 25. As the welding proceeds, the position of the slider 21 in the annular guide rail 1, the angle of the carrier mechanism 3, and the linear guide rail 25 are adjusted to adjust the axial displacement of the welding gun, and the welding point can be flexibly changed in multiple directions.

[0031] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0032] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A battery module welding auxiliary device, characterized in that: The invention comprises an annular guide rail (1), a welding mechanism (2) slidably connected to the annular guide rail (1), a platform mechanism (3) arranged at the center of the annular guide rail (1), and a power unit (4) driving the platform mechanism (3) to rotate in the middle of the annular guide rail (1); wherein the platform mechanism (3) comprises a base plate (31), two fixed end plates (32) connected to the base plate (31), a movable plate (33) arranged between the two fixed end plates (32), and a push rod (34) driving the movable plate (33) to move toward or away from the fixed end plates.

2. The battery module welding auxiliary device according to claim 1, characterized in that: The welding mechanism (2) comprises: a slider (21) slidably connected to the annular guide rail (1), a telescopic cylinder (22) connected to the slider (21), and a welding component (23) connected to the other end of the telescopic cylinder (22).

3. The battery module welding auxiliary device according to claim 2, characterized in that: A telescopic guide rod (24) is also provided between the welding component (23) and the sliding block (21).

4. The battery module welding auxiliary device according to claim 2, characterized in that: The slider (21) and the telescopic cylinder (22) are connected via a linear guide rail (25), the linear guide rail (25) is parallel to the central axis of the annular guide rail (1), and the non-telescopic end of the telescopic cylinder (22) can move back and forth in a limited manner in the linear guide rail (25).

5. The battery module welding auxiliary device according to claim 1, characterized in that: The first end of the push rod (34) is connected to the shaft hole of the movable plate (33) by clearance fit, and the second end is connected to the fixed end plate (32) by thread.

6. The battery module welding auxiliary device according to claim 1, characterized in that: The second end of the push rod (34) extends outward and is connected to a handle.

7. The battery module welding auxiliary device according to claim 1, characterized in that: It also comprises an L-shaped base (5), one end of the platform mechanism (3) is arranged on the vertical section of the L-shaped base (5), and the annular guide rail (1) is arranged on the horizontal section of the L-shaped base (5).

8. The battery module welding auxiliary device according to claim 1, characterized in that: The power unit (4) is a stepping motor.

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