Battery box stamping water-cooling plate FSW post-welding anti-deformation device

Abstract

The utility model discloses a battery box stamping water-cooling plate FSW post-welding anti-deformation device which comprises a supporting main beam, the two ends of the supporting main beam are each provided with a supporting mechanism, each supporting mechanism comprises a sliding block, and the sliding blocks are connected with the supporting main beam and slide along the supporting main beam; an air cylinder is installed below each sliding block, and piston rods of the two air cylinders face the two ends of the supporting main beam respectively and are parallel to the supporting main beam. At least one cushion block is installed at the end of a piston rod of each air cylinder and used for abutting against a die-casting beam of the battery box. The device has the advantages that the cushion blocks can be accurately attached to the key positions of the front die-casting beam and the rear die-casting beam of the battery box, the front die-casting beam and the rear die-casting beam of the battery box are stably supported through the supporting main beam and the air cylinder, and the die-casting beams are prevented from being bent due to cooling shrinkage of the water cooling plate. And meanwhile, the flatness of the water cooling plate is remarkably improved, the stability and precision of the overall structure are ensured, and therefore the quality and reliability of products are improved.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery box technology, and in particular to a device for preventing deformation after welding of FSW stamped water-cooled plate for battery boxes. Background Technology

[0002] In an increasingly competitive market, the application of stamped water-cooled plate FSW welding for power battery boxes and energy storage battery boxes is becoming more and more widespread.

[0003] However, during the FSW (friction stir welding) process, the water-cooled plate expands due to preheating and contracts upon cooling after welding. This thermal cycle can easily cause the front and rear die-cast beams of the battery box to bend, resulting in the water-cooled plate failing to apply sufficient tension to the side beams, thus causing poor flatness performance. Utility Model Content

[0004] The purpose of this invention is to provide a device for preventing deformation after welding of the FSW water-cooled plate in a battery box. This device can stably support the front and rear die-cast beams, effectively suppress the deformation caused by welding stress and internal material stress, and significantly improve the flatness of the water-cooled plate, ensuring the stability and precision of the overall structure.

[0005] The key feature of the anti-deformation device for the FSW stamped water-cooled plate of the battery box is that it includes a supporting main beam, with a supporting mechanism installed at each end of the supporting main beam. The supporting mechanism includes a slider, which is connected to the supporting main beam and slides along the supporting main beam.

[0006] Each of the sliders is equipped with a cylinder below it, and the piston rods of the two cylinders are respectively facing the two ends of the main support beam and parallel to the main support beam;

[0007] At least one pad is installed at the end of the piston rod of each cylinder, and the pads are used to abut against the die-cast beam of the battery box.

[0008] The pads can be accurately fitted to the key positions of the front and rear die-cast beams of the battery box, and provide stable support for the front and rear die-cast beams of the battery box through the support beam and cylinder. This effectively suppresses the deformation caused by welding stress and material internal stress, thereby preventing the water-cooled plate from shrinking and bending the die-cast beams without damaging the water-cooled plate and the die-cast beams.

[0009] At the same time, it significantly improves the flatness of the water-cooled plate, ensuring the stability and precision of the overall structure, thereby improving the quality and reliability of the product.

[0010] Furthermore, a connecting block is installed below the slider. The connecting block includes an integrally formed slider connecting part and a cylinder connecting part. The slider connecting part is fixedly connected to the slider, and the cylinder connecting part is fixedly connected to the cylinder.

[0011] Furthermore, a support block is installed at the end of the piston rod of the cylinder, and two pads are installed on the support block.

[0012] Furthermore, the slider is fitted onto the main support beam, and the slider has at least one limiting hole. Both ends of the main support beam have N adjustment holes arranged at equal intervals along the central axis of the main support beam.

[0013] The slider is fixedly connected to the main support beam by at least one limiting member, and the limiting member corresponds one-to-one with the limiting hole.

[0014] Furthermore, the limiting member is a pin, which passes vertically downward through the corresponding limiting hole and the adjusting hole in sequence.

[0015] Furthermore, the limiting member is a bolt, which passes vertically downward through the corresponding limiting hole and the adjusting hole in sequence, and is threadedly connected to the corresponding limiting hole and the adjusting hole.

[0016] Installed via pins or bolts, the slider's mounting position is freely adjustable to accommodate water-cooled plates and die-cast beams of varying sizes and shapes, offering versatility and adaptability. It can be widely applied in various FSW welding scenarios and other similar box-type structural applications. Furthermore, it is easy to install and disassemble, improving production efficiency and ease of operation for users.

[0017] Furthermore, both the slider connecting part and the cylinder connecting part are plate-shaped structures, and they are perpendicular to each other.

[0018] Furthermore, guide rods are installed on both sides of the piston rod of the cylinder. One end of the guide rod is connected to the cylinder, and the other end is fixedly connected to the support block.

[0019] Beneficial effects: The pads can accurately fit into the key positions of the front and rear die-cast beams of the battery box, and provide stable support for the front and rear die-cast beams of the battery box through the support beam and cylinder. This effectively suppresses the deformation caused by welding stress and material internal stress, thereby preventing the water-cooled plate from shrinking and bending the die-cast beams without damaging the water-cooled plate and the die-cast beams.

[0020] At the same time, it significantly improves the flatness of the water-cooled plate, ensuring the stability and precision of the overall structure, thereby improving the quality and reliability of the product.

[0021] Installed via pins or bolts, the slider's mounting position is freely adjustable to accommodate water-cooled plates and die-cast beams of varying sizes and shapes, offering versatility and adaptability. It can be widely applied in various FSW welding scenarios and other similar box-type structural applications. Furthermore, it is easy to install and disassemble, improving production efficiency and ease of operation for users. Attached Figure Description

[0022] Figure 1 This is a structural diagram of the present utility model;

[0023] Figure 2 This is a schematic diagram of the use and installation of this utility model. Detailed Implementation

[0024] The specific embodiments and working principle of this utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1 As shown, the anti-deformation device for the FSW welded water-cooled plate of the battery box includes a supporting main beam 6. A supporting mechanism is installed at each end of the supporting main beam 6. The supporting mechanism includes a slider 2, which is fitted onto the supporting main beam 6 and the two are fixedly connected by two limiting members 7.

[0026] The slider 2 has two limiting holes 21, and both ends of the main support beam 6 have 11 adjustment holes 61 arranged at equal intervals along the central axis of the main support beam 6.

[0027] Each of the limiting members 7 passes vertically downward through the corresponding limiting hole 21 and the adjusting hole 61 in sequence.

[0028] The limiting member 7 is a pin, which passes vertically downward through the corresponding limiting hole 21 and the adjusting hole 61.

[0029] The limiting member 7 can also be a bolt, which passes vertically downward through the corresponding limiting hole 21 and the adjusting hole 61 in sequence, and is threadedly connected to the corresponding limiting hole 21 and the adjusting hole 61.

[0030] like Figure 1 As shown, a connecting block 1 is installed below the slider 2. The connecting block 1 includes an integrally formed slider connecting part and a cylinder connecting part. Both the slider connecting part and the cylinder connecting part are plate-shaped structures and are perpendicular to each other.

[0031] The slider connecting part is fixedly connected to the slider 2, and a cylinder 5 is installed on the cylinder connecting part. The piston rod of the cylinder 5 faces the end of the supporting main beam 6 and is parallel to the supporting main beam 6.

[0032] The piston rod is fitted with a support block 3 at its end, and two pads 4 are mounted on the support block 3.

[0033] Guide rods are installed on both sides of the piston rod. One end of the guide rod is connected to the cylinder 5, and the other end is fixedly connected to the support block 3.

[0034] like Figure 2As shown, multiple units of this utility model are installed on the water cooling plate. By sliding the slider 2, the distance between the pad 4 and the front and rear die-cast beams is adjusted so that the pad 4 fits against the die-cast beam. Then, it is fixed by the pin or bolt. The cylinder 5 pushes the pad 4 to abut against the die-cast beam, providing it with stable support and effectively suppressing the deformation caused by welding stress and material internal stress. Thus, without damaging the water cooling plate and the die-cast beam, it prevents the water cooling plate from shrinking and bending the die-cast beam.

Claims

1. A battery case press water cooling plate FSW post-welding deformation prevention device, characterized by, The support main beam (6) is provided with a support mechanism at each end, and the support mechanism comprises a sliding block (2) connected with the support main beam (6) and sliding along the support main beam (6); Each sliding block (2) is provided with a pneumatic cylinder (5) below, and the piston rods of the two pneumatic cylinders (5) are respectively directed to the two ends of the support main beam (6) and parallel to the support main beam (6); The end of the piston rod of each pneumatic cylinder (5) is provided with at least one cushion block (4), and all the cushion blocks (4) are used for abutting against the die-casting beam of the battery box.

2. The battery case press water cooling plate FSW post-welding deformation prevention device according to claim 1, characterized by, The sliding block (2) is provided with a connecting block (1) below, and the connecting block (1) comprises a sliding block connecting part and a pneumatic cylinder connecting part which are integrally formed, the sliding block connecting part is fixedly connected with the sliding block (2), and the pneumatic cylinder connecting part is fixedly connected with the pneumatic cylinder (5).

3. The battery case press water plate FSW post-welding deformation prevention device according to claim 1, characterized by, The end of the piston rod of the pneumatic cylinder (5) is provided with a support block (3), and the support block (3) is provided with two cushion blocks (4).

4. The battery case press water plate FSW post-welding deformation prevention device according to claim 1, characterized by, The sliding block (2) is sleeved on the support main beam (6), and at least one limiting hole (21) is formed in the sliding block (2), and the two ends of the support main beam (6) are provided with N adjusting holes (61) arranged at equal intervals along the central axis of the support main beam (6). The sliding block (2) is fixedly connected with the support main beam (6) through at least one limiting piece (7), and the limiting piece (7) corresponds to the limiting hole (21) one by one.

5. The battery case press water plate FSW post-welding deformation prevention device according to claim 4, characterized by, The limiting piece (7) is a bolt which is vertically downward and sequentially passes through the corresponding limiting hole (21) and adjusting hole (61) and is threadedly connected with the corresponding limiting hole (21) and adjusting hole (61).

6. The battery case press water plate FSW post-welding deformation prevention device according to claim 4, characterized by, The sliding block connecting part and the pneumatic cylinder connecting part are both plate-shaped structures and are perpendicular to each other.

7. The battery case press water plate FSW post-welding deformation prevention device according to claim 2, characterized by, The piston rod of the pneumatic cylinder (5) is provided with a guide rod on both sides, one end of the guide rod is connected with the pneumatic cylinder (5), and the other end is fixedly connected with the support block (3).

8. The battery case punch water plate FSW post-welding deformation prevention device according to claim 3, characterized by, ​

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