Composite lead wire battery pole welding device

Abstract

The utility model relates to the technical field of battery manufacturing, and discloses a composite lead wire battery pole welding device which comprises a positioning plate and a supporting frame located below the positioning plate, and a first die cavity and a second die cavity which are both in clearance fit with a pole are oppositely arranged in the positioning plate. And one ends, far away from each other, of the first mold cavity and the second mold cavity are respectively provided with at least one movable pole locking piece. The device is suitable for welding a battery pole group and a pole, an adjustment margin is reserved for the position of the pole, the operation flexibility of the device is improved, and the operation difficulty is reduced; the pole is fixed through cooperation of the fixing piece, and stable welding work is guaranteed; in addition, the device is simple in structure and easy to machine.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a welding device for composite lead wire battery poles. Background Technique

[0002] Lead-acid batteries mainly consist of a battery cover, electrolyte, electrolytic cell, positive electrode plate, negative electrode plate, separator, pole, etc. During the production process of lead-acid batteries, pole welding is an important link, which refers to welding the battery pole to the bus bar or other components, and the welding quality will directly affect the product quality. With the rapid development of new energy vehicles, energy storage systems and other fields, the demand for lead-acid batteries is increasing continuously, and higher requirements are also put forward for the specific energy and cycle service life of lead-acid batteries. Composite lead wire batteries then appear in the public view. Due to the great difference in structural design between composite lead wire batteries and traditional lead-acid batteries, traditional pole welding devices cannot be applied to composite lead wire batteries. Therefore, it is crucial for this field to study a pole welding device suitable for composite lead wire batteries.

[0003] Chinese Patent CN215238715U discloses a welding device for new energy vehicle battery poles, including a frame, a tray, a welding part and a clamping component. The battery cover plate is placed on the tray, the clamping component positions the pole and the battery cover plate, and the welding part performs circular welding on the pole. However, due to the circular welding of the pole by this device, the operation accuracy requirement is high, the error margin is small, and the operation difficulty is large. In addition, the device has a complex structure and great difficulty in industrial production. Therefore, finding a pole welding device for composite lead wire batteries with a simple structure, easy operation and high welding efficiency is the problem to be solved at present. Content of the Utility Model

[0004] In order to solve the technical problems of the complex structure and large operation difficulty of the above device, the utility model provides a welding device for composite lead wire battery poles, which can assist in the welding of battery pole groups and poles. The first cavity and the second cavity fit the shape of the pole and have a margin. The pole is fixed through the cooperation of fixing parts, which not only ensures the stable progress of welding work, but also improves the flexibility of device operation and reduces the operation difficulty. In addition, the device has a simple structure and is easy to process.

[0005] The specific technical solution of the utility model is as follows: a welding device for composite lead wire battery poles, including a positioning plate and a support frame located below the positioning plate. The positioning plate is relatively provided with a first cavity and a second cavity that are both in clearance fit with the pole. At least one pole mobile locking part is respectively arranged at one end of the first cavity and the second cavity that are far away from each other.

[0006] The composite lead wire battery plate group is placed in the support frame, the positive electrode post and the negative electrode post are respectively placed in the first mold cavity and the second mold cavity, and the electrode post mobile locking piece fixes the electrode post, and then welding is carried out. The first mold cavity and the second mold cavity are in clearance fit with the electrode post (the shapes fit and there is a margin), which is convenient for the electrode post to be placed, and at the same time improves the applicability of the device and can be used for welding electrode posts with different spacings. The electrode post mobile locking piece can adjust and lock the position of the electrode post, so that the welding work can be carried out stably.

[0007] Further, two grooves are provided at one end of the positioning plate where the first mold cavity and the second mold cavity are far away from each other. The first sliding block and the second sliding block are respectively located on the two grooves of the positioning plate, and the width of the groove is greater than the width of the sliding block; the electrode post mobile locking pieces at one end of the first mold cavity and the second mold cavity penetrate through the edge of the positioning plate and are respectively connected to the first sliding block and the second sliding block.

[0008] The sliding blocks can slide relative to each other and lock the positions through the electrode post mobile locking pieces. The electrode post mobile locking pieces drive the sliding blocks to slide, and the operation is simple and labor-saving.

[0009] Further, the electrode post mobile locking piece includes a second screw rod and a handle. The handles in the electrode post mobile locking pieces at one end of the first mold cavity and the second mold cavity are respectively connected to the first sliding block and the second sliding block through the second screw rod; the second screw rod is provided with external threads at the connection ends passing through the edge of the positioning plate and connecting to the first sliding block and the second sliding block, and the positioning plate is provided with internal threads corresponding to the external threads at the penetrated positions.

[0010] Further, a first notch adapted to the bus bar is provided between the first mold cavity and the first sliding block, and a second notch adapted to the bus bar is provided between the second mold cavity and the second sliding block.

[0011] The bus bar of the plate group can be inserted into the first notch and the second notch. The bus bar of the plate group makes the electric energy flow in the battery module more stable and uniform, so that the working efficiency and service life of the battery module are improved.

[0012] Further, the support frame includes a plurality of support rods. One end of the support rod is connected to the base, and the other end is connected to the support strip. The support strip is attached to the bottom surface of the positioning plate.

[0013] Further, a height adjustment component is provided between the support rod and the support strip.

[0014] The support frame is used to support the positioning plate. By adjusting the height adjustment component above the support rod, the distance between the positioning plate and the base is controlled to adapt to the welding of the electrode posts of composite lead wire batteries with different specifications, and the versatility of the device is improved.

[0015] Further, the support rod is of a hollow structure; the height adjustment assembly includes a first screw rod. One end of the first screw rod enters the support rod, and the other end extends out of the support rod and is connected to the support bar. A limiting member is provided on the extending end of the first screw rod.

[0016] Further, a plurality of positioning blocks are provided in the base. The positioning blocks are located in the area surrounded by a plurality of support rods, and the positioning blocks abut at least three sides of the outer surface of the composite lead wire battery.

[0017] The positioning blocks can prevent the displacement of the electrode group of the composite lead wire battery and stabilize the welding structure.

[0018] Further, the positioning plate is formed by splicing a first movable plate and a second movable plate, and the splicing part of the first movable plate and the second movable plate is the middle part of the positioning plate.

[0019] Further, the limiting member is a fixing nut, and the outer diameter of the fixing nut is not less than the inner diameter of the support rod.

[0020] Compared with the prior art, the present utility model has the following advantages:

[0021] (1) High versatility and large adaptability. By setting the first mold cavity, the second mold cavity and the support frame with adjustable height, this device can adapt to composite lead wire batteries of different specifications for pole column welding.

[0022] (2) Simple and stable structure, low operation difficulty. This device leaves a margin for adjusting the position of the pole column. The position of the pole column is adjusted and locked by connecting the sliding block with the pole column movable locking member. By setting positioning blocks on the base to fix the position of the electrode group of the composite lead wire battery, the welding work can be carried out stably. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the composite lead wire battery pole column welding device in Embodiment 1.

[0024] Figure 2 It is a top view of the positioning plate and the pole column movable locking member of the present utility model.

[0025] Figure 3 It is a front view of a support frame of the present utility model.

[0026] Figure 4 It is a top view of a support frame of the present utility model.

[0027] The reference numerals are: 1 - positioning plate, 11 - first movable plate, 112 - first connecting bar, 12 - second movable plate, 122 - second connecting bar, 13 - first mold cavity, 14 - second mold cavity, 15 - first notch, 16 - first sliding stopper, 17 - second sliding stopper, 18 - second notch, 19 - groove, 2 - support frame, 21 - support bar, 22 - first screw rod, 23 - limiting member, 24 - support rod, 25 - base, 26 - positioning block, 3 - pole column movable locking member, 31 - second screw rod, 32 - handle. Detailed implementation mode

[0028] The present utility model will be further described below in conjunction with embodiments. In the devices, connection structures and methods involved in the present utility model, unless otherwise specified, are all well-known devices, connection structures and methods in the art.

[0029] Embodiment 1

[0030] This embodiment discloses a composite lead wire battery pole column welding device for welding composite lead wire battery pole columns. Referring to Figures 1-4 It can be understood that the device includes a positioning plate 1 and a support frame 2 located below the positioning plate 1. The positioning plate 1 is formed by splicing a first movable plate 11 and a second movable plate 12. The positioning plate 1 is rectangular as a whole, and the splicing position of the first movable plate 11 and the second movable plate 12 is the middle of the positioning plate 1. A first mold cavity 13 and a second mold cavity 14 are symmetrically arranged along the central axis in the positioning plate 1. A groove 19 is provided on the first movable plate 11 on the side of the first mold cavity 13 away from the second mold cavity 14. A first sliding stopper 16 is provided in the groove 19. The width of the groove 19 is greater than the width of the first sliding stopper 16. A first notch 15 is provided between the first mold cavity 13 and the first sliding stopper 16; another groove 19 is provided on the first movable plate 11 on the side of the second mold cavity 14 away from the first mold cavity 13. A second sliding stopper 17 is provided in the groove 19. The width of the groove 19 is greater than the width of the second sliding stopper 17. A second notch 18 is provided between the second mold cavity 14 and the second sliding stopper 17.

[0031] In this embodiment, two pole movable locking members 3 are provided on the outer side of the positioning plate 1. The two pole movable locking members 3 penetrate through the edge of the positioning plate 1 and are respectively connected to the first sliding block 16 and the second sliding block 17. The pole movable locking members 3 are arranged parallel to the sliding blocks. The pole movable locking member 3 includes a second screw 31 and a handle 32. The handle 32 is connected to the sliding block through the second screw 31. The connecting end of the second screw 31 and the sliding block is provided with an external thread, and the penetrated position of the positioning plate 1 is provided with an internal thread corresponding to the external thread. The support frame 2 includes a base 25. The base 25 is rectangular, and four support rods 24 are vertically provided at the four corners. The support rods 24 are hollow structures. One end of the first screw 22 enters the support rod 24, and the other end extends out of the support rod 24 to contact the support bar 21. A limiting member 23 is provided between the first screw 22 and the support rod 24. The limiting member 23 is a fixing nut, and the outer diameter of the fixing nut is not less than the inner diameter of the support rod. Two support bars 21 are provided in the support frame 2. The bottom surface of each support bar 21 is connected to the two support rods 24 on the same side. The positioning plate 1 is attached to the top surface of the support bar 21 through the lower bottom surfaces of the first connecting bar 112 and the second connecting bar 122. The support bar 21 is perpendicular to the first connecting bar 112 and the second connecting bar 122. Two positioning blocks 26 are provided in the base 25. The two positioning blocks 26 are arranged opposite to each other along the same side and are located inside the area surrounded by the four support rods 24. Each positioning block 26 abuts against two adjacent surfaces of the outer surface of the composite lead wire battery.

[0032] In this embodiment, the positioning plate 1 is used to place and fix the positive pole and the negative pole. The first mold cavity 13 and the second mold cavity 14 are used to place the battery positive pole and the negative pole, and notch openings are provided on one side of both mold cavities close to the sliding block. The pole group busbar can be inserted into the first notch 15 and the second notch 18. The pole group busbar makes the electric energy flow in the battery module more stable and uniform, improving the working efficiency and service life of the battery module. The support frame 2 is used to support the positioning plate 1. By adjusting the fixing nut above the support rod 24, the distance between the positioning plate 1 and the base 25 is controlled to adapt to the pole welding of composite lead wire batteries of different specifications, improving the versatility of the device. The pole movable locking member 3 controls the position of the sliding block through the second screw 31 to lock the positive pole and the negative pole, ensuring the stable progress of the welding work. At the same time, by adjusting the feeding degree of the second screw 31, the pole group busbar is fixed, and the pressing degree of the sliding block on the pole group busbar is controlled. In this embodiment, the first movable plate 11 and the second movable plate 12 are made of heat-resistant stainless steel plates.

[0033] The welding method of the device in this embodiment is as follows: According to the heights of the positive / negative busbars of the electrode group (including the positive busbar of the electrode group and the negative busbar of the electrode group) and the positive / negative electrode posts (including the positive electrode post and the negative electrode post), the first screw rod 22 is adjusted to the specified height by adjusting the fixing nut, and the support bar 21 is kept horizontal. The composite lead wire battery electrode group is placed on the base 25, and the position of the composite lead wire battery electrode group is fixed by the positioning block 26. The first movable plate 11 connected with the first connecting bar 112 and the second movable plate 12 connected with the second connecting bar 122 are placed opposite to each other on the support bar 21. The positive / negative busbars of the electrode group are respectively fixed in the two notches 15, and then the two movable plates are tightened to form the positioning plate 1. The handle 32 is rotated clockwise to drive the two sliding blocks by the second screw rod 31 to press the positive / negative busbars of the electrode group. The positive / negative electrode posts are respectively placed in the first mold cavity 13 and the second mold cavity 14, and the electrode post protective sleeves are put on, and the welding gun is used to complete the welding of the positive / negative busbars of the electrode group and the positive / negative electrode posts.

[0034] Embodiment 2

[0035] This embodiment discloses a welding device for composite lead wire battery electrode posts for welding composite lead wire battery electrode posts. The device includes a positioning plate 1 and a support frame 2 located below the positioning plate 1. The positioning plate 1 is spliced by a first movable plate 11 and a second movable plate 12. The positioning plate 1 is integrally in an "H" shape, and the splicing part of the first movable plate 11 and the second movable plate 12 is the middle part of the positioning plate 1. A first mold cavity 13 and a second mold cavity 14 are symmetrically arranged along the central axis inside the positioning plate 1. A groove 19 is arranged on the first movable plate 11 on the side where the first mold cavity 13 is far from the second mold cavity 14. A first sliding block 16 is arranged in the groove 19. The width of the groove 19 is greater than the width of the first sliding block 16. A first notch 15 is arranged between the first mold cavity 13 and the first sliding block 16. Another groove 19 is arranged on the first movable plate 11 on the side where the second mold cavity 14 is far from the first mold cavity 13. A second sliding block 17 is arranged in the groove 19. The width of the groove 19 is greater than the width of the second sliding block 17. A second notch 18 is arranged between the second mold cavity 14 and the second sliding block 17.

[0036] In this embodiment, a total of 4 pole movable locking members 3 are provided on two opposite sides of the positioning plate 1. Two of them are in a group and are arranged on the same side. The 4 pole movable locking members 3 all penetrate through the edge of the positioning plate 1 and are respectively connected to the first sliding block 16 and the second sliding block 17. The pole movable locking members 3 are arranged parallel to the sliding blocks. The pole movable locking member 3 includes a second screw 31 and a handle 32. The handle 32 is connected to the sliding block through the second screw 31. The connection end of the second screw 31 and the sliding block is provided with an external thread, and the penetrated part of the positioning plate 1 is provided with an internal thread corresponding to the external thread. The support frame 2 includes a base 25. The base 25 is rectangular, and two support rods 24 are vertically provided. The support rods 24 are located in the middle of the opposite sides of the base 25. The support rods 24 are of a hollow structure. One end of the first screw 22 enters the support rod 24, and the other end extends out of the support rod 24 and contacts the support bar 21. A limiting member 23 is provided between the first screw 22 and the support rod 24. The limiting member 23 is a fixed nut, and the outer diameter of the fixed nut is not less than the inner diameter of the support rod. Two support bars 21 are provided in the support frame 2. The bottom surface of each support bar 21 is connected to the support rod 24 on the same side. The positioning plate 1 is attached to the top surface of the support bar 21 through the bottom surface of the long side, and the support bar 21 is perpendicular to the positioning plate 1. Three positioning blocks 26 are provided in the base 25. The three positioning blocks 26 are arranged along three sides of the base 25, are respectively located in the middle of each side and are closer to the center of the base 25 than the support rod 24. The positioning blocks 26 abut against three sides of the outer surface of the composite lead wire battery.

[0037] In this embodiment, the functions of each structure are the same as those in Embodiment 1.

[0038] The welding method of the device in this embodiment is as follows: According to the heights of the positive / negative busbars of the electrode group (including the positive busbar of the electrode group and the negative busbar of the electrode group) and the positive / negative electrode posts (including the positive electrode post and the negative electrode post), the first screw 22 is adjusted to the specified height by adjusting the fixed nut, and the support bar 21 is kept horizontal. The composite lead wire battery electrode group is placed on the base 25, and the position of the composite lead wire battery electrode group is fixed by the positioning blocks 26. The first movable plate 11 and the second movable plate 12 are placed opposite to each other on the support bar 21. The positive / negative busbars of the electrode group are respectively fixed in the two notches 15, and then the two movable plates are tightened to form the positioning plate 1. The handle 32 is rotated clockwise to make the second screw 31 drive the two sliding blocks to press the positive / negative busbars of the electrode group. The positive / negative electrode posts are respectively placed in the first cavity 13 and the second cavity 14, and the electrode post protective sleeves are put on, and a welding torch is used to complete the welding of the positive / negative busbars of the electrode group and the positive / negative electrode posts.

[0039] Embodiment 3

[0040] This embodiment discloses a composite lead wire battery pole welding device for welding the poles of a composite lead wire battery. The device includes a positioning plate 1 and a support frame 2 located below the positioning plate 1. The positioning plate 1 is an integral structure and is rectangular as a whole. Inside the positioning plate 1, a first die cavity 13 and a second die cavity 14 are symmetrically arranged along the central axis. In the positioning plate 1, a groove 19 is provided on the side of the first die cavity 13 away from the second die cavity 14. A first sliding block 16 is arranged in the groove 19. The width of the groove 19 is greater than the width of the first sliding block 16. A first notch 15 is provided between the first die cavity 13 and the first sliding block 16. In the positioning plate 1, another groove 19 is provided on the side of the second die cavity 14 away from the first die cavity 13. A second sliding block 17 is arranged in the groove 19. The width of the groove 19 is greater than the width of the second sliding block 17. A second notch 18 is provided between the second die cavity 14 and the second sliding block 17.

[0041] In this embodiment, two pole mobile locking parts 3 are arranged on the outside of the positioning plate 1. The two pole mobile locking parts 3 penetrate through the edge of the positioning plate 1 and are respectively connected to the first sliding block 16 and the second sliding block 17. The pole mobile locking parts 3 are arranged parallel to the sliding blocks. The pole mobile locking part 3 includes a second screw 31 and a handle 32. The handle 32 is connected to the sliding block through the second screw 31. The connection end of the second screw 31 and the sliding block is provided with an external thread, and the part of the positioning plate 1 penetrated is provided with an internal thread corresponding to the external thread. The support frame 2 includes a base 25. The base 25 is rectangular, and four support rods 24 are vertically arranged at the four corners. The support rods 24 are lifting rods. Two support bars 21 are arranged in the support frame 2. The bottom surface of each support bar 21 is connected to the two support rods 24 on the same side. The positioning plate 1 is attached to the top surface of the support bar 21 through the bottom surfaces of the first connecting bar 112 and the second connecting bar 122. The support bar 21 is perpendicular to the first connecting bar 112 and the second connecting bar 122. Two positioning blocks 26 are arranged in the base 25. The two positioning blocks 26 are arranged opposite to each other along the same side and are located inside the area surrounded by the four support rods 24. Each positioning block 26 abuts against two adjacent surfaces on the outer surface of the composite lead wire battery.

[0042] In this embodiment, the positioning plate 1 is used to place and fix the positive electrode post and the negative electrode post. The first die cavity 13 and the second die cavity 14 are used to place the battery positive electrode post and the negative electrode post. Grooves are provided on one side of both die cavities close to the sliding block, and the electrode group busbar can be inserted into the first groove 15 and the second groove 18; the electrode group busbar makes the electric energy flow more stable and uniform in the battery module, improving the working efficiency and service life of the battery module. The support frame 2 is used to support the positioning plate 1. By adjusting the height of the support rod 24, the distance between the positioning plate 1 and the base 25 is controlled to adapt to the pole column welding of composite lead wire batteries of different specifications, enhancing the versatility of the device. The pole column mobile locking part 3 controls the position of the sliding block through the second screw rod 31 to lock the positive electrode post and the negative electrode post, ensuring the stable progress of the welding work; at the same time, by adjusting the feeding degree of the second screw rod 31, the electrode group busbar is fixed, and the pressing degree of the sliding block on the electrode group busbar is controlled. In this embodiment, the positioning plate 1 is made of heat-resistant stainless steel plate.

[0043] The welding method of the device in this embodiment is as follows: According to the heights of the positive / negative busbars of the electrode group (including the positive busbar of the electrode group and the negative busbar of the electrode group) and the positive / negative electrode posts (including the positive electrode post and the negative electrode post), the support rod 24 is adjusted to a specified height, and the support bar 21 is kept horizontal. The composite lead wire battery electrode group is placed on the base 25, and the position of the composite lead wire battery electrode group is fixed by the positioning block 26. The positioning plate 1 connected with the first connecting bar 112 and the second connecting bar 122 is placed on the support bar 21. The positive / negative busbars of the electrode group are respectively fixed in the two grooves 15. Then, the handle 32 is rotated clockwise to drive the two sliding blocks by the second screw rod 31 to press the positive / negative busbars of the electrode group. The positive / negative electrode posts are respectively placed in the first die cavity 13 and the second die cavity 14, and the pole column protective sleeve is put on, and the welding of the positive / negative busbars of the electrode group and the positive / negative electrode posts is completed by using a welding torch.

[0044] The above is only a preferred embodiment of the present invention, and does not impose any limitation on the present invention. Any simple modification, change, and equivalent structural transformation made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A composite lead wire battery pole welding device, characterized in that, It includes a positioning plate (1) and a support frame (2) located below the positioning plate (1). In the positioning plate (1), a first mold cavity (13) and a second mold cavity (14) which are both in clearance fit with the pole are oppositely arranged. At least one pole movable locking part (3) is arranged at each end of the first mold cavity (13) and the second mold cavity (14) which are far away from each other.

2. The composite lead wire battery pole welding device according to claim 1, characterized in that, In the positioning plate (1), two grooves (19) are arranged at the ends of the first mold cavity (13) and the second mold cavity (14) which are far away from each other. The first sliding block (16) and the second sliding block (17) are respectively located on the two grooves (19) of the positioning plate (1). The width of the groove (19) is greater than the width of the sliding block. The pole movable locking parts (3) at one end of the first mold cavity (13) and the second mold cavity (14) penetrate through the edge of the positioning plate (1) and are respectively connected with the first sliding block (16) and the second sliding block (17).

3. The composite lead wire battery pole welding device according to claim 2, characterized in that, The pole movable locking part (3) includes a second screw (31) and a handle (32). The handle (32) in the pole movable locking part (3) at one end of the first mold cavity (13) and the second mold cavity (14) is respectively connected with the first sliding block (16) and the second sliding block (17) through the second screw (31). The second screw (31) is provided with external threads at the connection ends passing through the edge of the positioning plate (1) and connecting with the first sliding block (16) and the second sliding block (17), and the positioning plate (1) is provided with internal threads corresponding to the external threads at the penetrated part.

4. A composite lead wire battery pole welding device according to claim 2 or 3, characterized in that A first notch (15) adapted to the bus bar is arranged between the first mold cavity (13) and the first sliding block (16), and a second notch (18) adapted to the bus bar is arranged between the second mold cavity (14) and the second sliding block (17).

5. A composite lead wire battery pole welding device according to claim 1, characterized in that, The support frame (2) includes a plurality of support rods (24). One end of the support rod (24) is connected with the base (25), and the other end is connected with the support strip (21). The support strip (21) is attached to the bottom surface of the positioning plate (1).

6. The composite lead wire battery pole welding device according to claim 5, characterized in that, A height adjustment component is arranged between the support rod (24) and the support strip (21).

7. A composite lead wire battery pole welding device according to claim 6, characterized in that The support rod (24) is of a hollow structure. The height adjustment component includes a first screw (22). One end of the first screw (22) enters the support rod (24), and the other end extends out of the support rod (24) and is connected with the support strip (21). A limiting part (23) is arranged on the extending end of the first screw (22).

8. A composite lead wire battery pole welding device according to claim 5, characterized in that, A plurality of positioning blocks (26) are arranged in the base (25). The positioning blocks (26) are located in the area surrounded by a plurality of support rods (24), and the positioning blocks (26) abut against at least three surfaces of the outer surface of the composite lead wire battery.

9. The composite lead wire battery pole welding device according to claim 1, characterized in that, The positioning plate (1) is spliced by a first movable plate (11) and a second movable plate (12). The splicing part of the first movable plate (11) and the second movable plate (12) is the middle part of the positioning plate (1).

10. The composite lead wire battery pole welding device according to claim 7, characterized in that The limiting part is a fixed nut, and the outer diameter of the fixed nut is not less than the inner diameter of the support rod (24).

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