CN203031132U - A power battery welding equipment - Google Patents

Abstract

The utility model relates to the technical field of battery production equipment, in particular to power battery welding equipment, which comprises a frame, wherein the frame is provided with a laser welding device, a welding fixture is arranged below the laser welding device, the welding fixture comprises a support frame, the bottom of the support frame is provided with a power device for abutting against a power battery, the top of the support frame is provided with a welding plate for abutting against the power battery, and the welding plate is provided with a welding hole for welding the power battery; the power battery is placed above the power device, the current collecting plate is tightly attached to the electric core winding body through mutual abutting of the power device and the welding plate, and the welding plate is provided with a welding hole for welding the power battery; the laser welding device welds the current collecting plate on the electric core winding body through the welding hole, and the welding equipment is convenient to operate, firm and reliable in welding, and guarantees the production consistency of the power battery.

Description

A power battery welding equipment

technical field

The utility model relates to the technical field of battery production equipment, in particular to power battery welding equipment.

Background technique

In the manufacturing process of the power battery in the prior art, a plurality of tabs of the winding body of the battery core are first attached together, welded together by means of resistance welding, and then welded to the end cap by manual ultrasonic welding. The manual ultrasonic welding of the prior art is not reliable, which easily leads to a short circuit of the power battery and makes the consistency of the power battery produced poor.

Contents of the invention

The purpose of the utility model is to provide a power battery welding equipment for the deficiencies of the prior art, which directly welds the current collecting plate to the battery winding body, which is easy to operate, firm and reliable in welding, and ensures the consistency of power battery production.

In order to achieve the above object, a power battery welding device of the present invention includes a frame, the frame is provided with a laser welder, a welding fixture is provided below the laser welder, and the welding fixture includes a support frame, The bottom of the support frame is provided with a power device for propping up the power battery, and the top of the support frame is provided with a welding plate for propping up the power battery, and the welding plate is provided with a welding hole for welding the power battery.

Preferably, a guide plate for guiding the power battery is provided in the middle of the support frame.

Preferably, the power device is a cylinder.

Preferably, the welding hole is a rectangular hole.

Preferably, the number of the rectangular holes is three, and the angle between the three rectangular holes is 120 degrees.

Preferably, the number of the guide plates is two.

Preferably, fan-shaped holes are arranged between the three rectangular holes.

Preferably, the frame is provided with an X-Y motion platform, and the welding fixture is fixed on the top surface of the X-Y motion platform.

Preferably, the laser welder can be slid up and down and connected to the frame.

The beneficial effect of the utility model: a power battery welding equipment, the power battery is placed above the power device, and the power device and the welding plate are pressed against each other, and the current collecting plate is closely attached to the end of the battery winding body, and the welding The plate is provided with a welding hole for welding the current collector plate to the power battery; the laser welder welds the current collector plate to the cell winding body through the welding hole. The welding equipment is easy to operate, and the welding is firm and reliable, ensuring the consistency of power battery production. sex.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the front view of the utility model.

Fig. 3 is a left side view of Fig. 2 .

Fig. 4 is a bottom view of Fig. 2 .

Fig. 5 is a structural schematic diagram of the welding fixture of the present invention.

Fig. 6 is a structural schematic diagram of the current collector plate welded on the winding body of the electric core of the present invention.

Reference signs include:

1—Frame 2—Laser welder 3—Welding fixture

31—Support frame 32—Power device 33—Welding plate

34—Welding hole 35—Guide plate 36—Scalloped hole

4—X-Y motion platform 5—Cell winding body 6—Collector plate.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Figures 1 to 6, a power battery welding device of the present invention includes a frame 1, the frame 1 is provided with a laser welder 2, and a welding fixture 3 is provided below the laser welder 2 The welding fixture 3 includes a support frame 31, the bottom of the support frame 31 is provided with a power device 32 for abutting against the power battery, and the top of the support frame 31 is provided with a welding plate 33 for abutting against the power battery, so The welding plate 33 is provided with a welding hole 34 for welding the power battery.

The laser welder 2 is slidably connected to the frame 1 up and down.

The operator places the wound cell 5 to be welded on the power device 32 , and the power device 32 in this embodiment is preferably a cylinder. The middle part of the support frame 31 is provided with a guide plate 35 for guiding the power battery. The guide plate 35 in this embodiment is preferably two pieces, and the battery winding body 5 is closely attached to the guide plate 35. Get good positioning. Then the collector plate 6 is placed on the battery winding body 5, and the cylinder pushes the battery winding body 5 and the current collector plate 6 upward until the battery winding body 5 and the current collector plate 6 are pressed against the welding plate 33.

The laser welder 2 approaches the welding jig 3 , and welds the current collector plate 6 to the cell winding body 5 through the welding hole 34 provided on the welding plate 33 . The welding equipment of the utility model has the advantages of convenient operation, firm and reliable welding.

The welding hole 34 is a rectangular hole, the number of the rectangular holes is three, and the angle between the three rectangular holes is 120 degrees. The three rectangular holes are distributed in a circular array. The rectangular holes are convenient for welding by the laser welder 2. The connecting parts between the rectangular holes can touch the middle of the current collector plate 6, so that the current collector plate 6 can be better attached to the cell coil. On the winding body 5, the welding quality of the collector plate 6 is ensured.

The three rectangular holes are provided with fan-shaped holes 36 between each other. The setting of the fan-shaped hole 36 can expand the welding point of the current collecting plate 6, so that the welding of the current collecting plate 6 is more firm.

The frame 1 is provided with an X-Y motion platform 4, and the welding fixture 3 is fixedly connected to the top surface of the X-Y motion platform 4. The welding jig 3 moves in the X-Y direction through the X-Y motion platform 4 , so that the laser welder 2 can perform welding at different points of the collector plate 6 .

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (9)

1. electrokinetic cell welding equipment, comprise frame, it is characterized in that: described frame is provided with laser-welding machine, the below of described laser-welding machine is provided with weld jig, described weld jig comprises bracing frame, the bottom of support frame as described above is provided be used to the power set of replacing electrokinetic cell, and the top of support frame as described above is provided be used to the welded plate of replacing electrokinetic cell, and described welded plate offers the welding hole for the welding electrokinetic cell.

2. electrokinetic cell welding equipment according to claim 1 is characterized in that: the middle part of support frame as described above is provided with the guide plate for the guiding electrokinetic cell.

3. electrokinetic cell welding equipment according to claim 1, it is characterized in that: described power set are cylinder.

4. electrokinetic cell welding equipment according to claim 1, it is characterized in that: described welding hole is rectangular opening.

5. electrokinetic cell welding equipment according to claim 4, it is characterized in that: the quantity of rectangular opening is three, three rectangular openings angle each other is 120 degree.

6. electrokinetic cell welding equipment according to claim 2, it is characterized in that: the quantity of described guide plate is two.

7. electrokinetic cell welding equipment according to claim 5, it is characterized in that: described three rectangular openings are provided with scallop hole each other.

8. electrokinetic cell welding equipment according to claim 1, it is characterized in that: described frame is provided with the X-Y motion platform, and described weld jig is fixed in the end face of X-Y motion platform.

9. electrokinetic cell welding equipment according to claim 1, it is characterized in that: described laser-welding machine can slide up and down and be connected in described frame.

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