Battery butt welding tool

By designing a water-cooling system for battery welding fixtures, the problem of slow cooling speed in lead-acid battery electrode group welding was solved, thus improving welding efficiency.

CN224406762UActive Publication Date: 2026-06-26JIANGSU LEOCH BATTERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU LEOCH BATTERY
Filing Date
2025-06-16
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The slow cooling rate during the welding of electrode groups in existing lead-acid batteries results in low production efficiency.

Method used

Design a battery welding fixture, which consists of a first clamping block and a second clamping block forming a circular through hole with water channels inside, through which a refrigerant is supplied for rapid cooling, and combined with a grip handle for easy operation.

Benefits of technology

Rapid cooling after electrode group welding was achieved, improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of battery butt welding tool, including first clamping block and second clamping block, the first clamping block includes first block, and the middle part of one side of first block is provided with first clamping groove, the second clamping block includes second block, and the middle part of second block is provided with second clamping groove, first clamping block and second clamping block group pair, first clamping groove and second clamping groove constitute circular through-hole, the inside of first block is provided with first waterway, and the both ends located in first waterway are provided with first connecting port, the first connecting port is fixedly connected with first metal pipe, the inside of second block is provided with second waterway, and the both ends located in second waterway are provided with second connecting port, and the second connecting port is fixedly connected with second metal pipe.The utility model, setting water cooling structure, can be cooled quickly after welding, improve operating efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of storage battery production technology, and in particular to a storage battery welding fixture. Background Technology

[0002] A lead-acid battery is a type of rechargeable battery whose electrodes are primarily made of lead and its oxides, and whose electrolyte is a sulfuric acid solution. In practice, six individual lead-acid cells are often connected in series to form a lead-acid battery with a nominal voltage of 12V.

[0003] Each lead-acid battery cell consists of a positive plate, a negative plate, and a separator, forming an electrode group. Currently, the connection between two electrode groups in a lead-acid battery is still achieved by welding lead components together. To connect two electrode groups, a butt welding fixture is needed to weld the two connected components together. Existing butt welding fixtures are separate tools in the form of welding clamps. After prolonged use, these fixtures need to be cooled in cooling water before welding the electrode groups. This results in slow cooling of the electrode groups and low production efficiency due to the need for cooling of the welding clamps during operation. Utility Model Content

[0004] To solve the above problems, this utility model discloses a battery welding fixture, including a first clamping block and a second clamping block. The first clamping block includes a first block body, and a first clamping groove is provided in the middle of one side of the first block body. The second clamping block includes a second block body, and a second clamping groove is provided in the middle of the second block body. The first clamping block and the second clamping block are assembled together, and the first clamping groove and the second clamping groove form a circular through hole. A first water channel is provided inside the first block body, and a first connecting port is provided at both ends of the first water channel. A first metal pipe is fixedly connected to the first connecting port.

[0005] The second block has a second water channel inside, and a second connection port is provided at both ends of the second water channel. The second connection port is fixedly connected to a second metal pipe. Water cooling is added by pumping in coolant after the electrode group welding is completed, thereby cooling the tool and the electrode group.

[0006] Preferably, the first block has through holes on both sides, through which the second metal tube passes. That is, the second block can slide on the second metal tube, and when the first clamping block and the second clamping block contact each other, the first clamping groove and the second clamping groove form a circular through hole.

[0007] Preferably, a tee pipe is fixedly connected to the end of the second metal pipe, a flexible hose is fixedly connected to one end of the tee pipe, and the other end of the flexible hose is fixedly connected to the end of the first metal pipe. The last end of the tee pipe is used to connect to an external water supply pipeline, so that water supply and drainage can be achieved for the first and second metal pipes through the tee pipe.

[0008] Preferably, a limit ring is threaded onto the second metal tube, and a spring is sleeved on the second metal tube. One end of the spring abuts against the limit ring, and the other end abuts against the first clamping block. That is, under the action of the spring, the first clamping block is made to fit against the second clamping block.

[0009] Preferably, the ends of the two first metal tubes are fixedly connected to a second grip handle, and the ends of the two second metal tubes are fixedly connected to a first grip handle. The first clamping block and the second clamping block can be separated by the first grip handle and the second grip handle. Specifically, the first grip handle is held from below with one hand, and the fingers hook the second grip handle. When gripping with force, the first grip handle and the second grip handle move closer to each other.

[0010] Preferably, a first block is provided inside the first waterway, and a second block is fixedly connected to one end of the second waterway. The first and second block are used to prevent water leakage.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. The first clamping block and the second clamping block are respectively provided with a first water channel and a second water channel. The introduction of refrigerant can quickly cool the work after welding, which helps to improve work efficiency.

[0013] 2. The first metal tube and the second metal tube are used as components for operating the first clamping block and the second clamping block, respectively, and the first gripping handle and the second gripping handle are respectively set on them, which facilitates one-handed operation and can also organize the pipeline, making it convenient for work. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0015] Figure 2 This is an exploded view of the present invention;

[0016] Figure 3 This is a three-dimensional schematic diagram of the first clamping block of this utility model;

[0017] Figure 4 This is a three-dimensional schematic diagram of the second clamping block of this utility model.

[0018] List of reference numerals in the attached diagram:

[0019] 1. T-joint; 2. First grip handle; 3. Flexible hose; 4. Second grip handle; 5. First metal tube; 6. Second metal tube; 7. Limiting ring; 8. Spring; 9. First clamping block; 10. Second clamping block; 11. First blocking block; 12. Second blocking block;

[0020] 91. First block; 92. First clamping groove; 93. First connection port; 94. Through hole; 95. First water channel; 101. Second block; 102. Second clamping groove; 103. Second connection port; 104. Second water channel. Detailed Implementation

[0021] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0022] like Figures 1 to 4 As shown, a battery welding fixture includes a first clamping block 9 and a second clamping block 10. The first clamping block 9 includes a first block 91, and a first clamping groove 92 is provided in the middle of one side of the first block 91. The second clamping block 10 includes a second block 101, and a second clamping groove 102 is provided in the middle of the second block 101. The first clamping block 9 and the second clamping block 10 are paired, and the first clamping groove 92 and the second clamping groove 102 form a circular through hole. That is, the first block 91 and the second block 101 are arranged symmetrically. When welding battery electrode groups, the lead columns extending from the electrode groups need to be welded together, so that two single lead-acid batteries are connected in series. The lead columns of the two single lead-acid batteries form a cylinder. The first clamping block 9 and the second clamping block 10 clamp the two lead columns, and a flame gun is used to melt the upper end of the lead columns. After cooling, the upper ends of the two lead columns are fused together.

[0023] The first block 91 has a first water channel 95 inside, and a first connection port 93 is provided at both ends of the first water channel 95. A first metal pipe 5 is fixedly connected to the first connection port 93. The second block 101 has a second water channel 104 inside, and a second connection port 103 is provided at both ends of the second water channel 104. A second metal pipe 6 is fixedly connected to the second connection port 103. After welding, coolant is injected into the first water channel 95 and the second water channel 104 through the first metal pipe 5 and the second metal pipe 6 for cooling, which can quickly cool the lead column and tooling, thereby improving the welding efficiency.

[0024] Both sides of the first block 91 are provided with through holes 94, and the second metal tube 6 passes through the through holes 94, that is, the first clamping block 9 can slide on the second metal tube 6, which is conducive to the first clamping block 9 and the second clamping block 10 approaching each other for clamping.

[0025] The end of the second metal pipe 6 is fixedly connected to a tee pipe 1. One end of the tee pipe 1 is fixedly connected to a hose 3. The other end of the hose 3 is fixedly connected to the end of the first metal pipe 5. Since the first clamping block 9 and the second clamping block 10 move with each other, the hose 3 is used for connection. At the same time, the hose 3 needs to be heat resistant. In addition, the remaining end of the tee pipe 1 is used to connect to the external water supply and drainage pipes.

[0026] A limiting ring 7 is threaded onto the second metal tube 6, meaning the position of the limiting ring 7 can be changed. A spring 8 is sleeved on the second metal tube 6, with one end of the spring 8 abutting against the limiting ring 7 and the other end abutting against the first clamping block 9. Under the action of the spring 8, the first clamping block 9 and the second clamping block 10 are kept in a clamping state. At the same time, the clamping force can be adjusted by rotating the limiting ring 7 to change its position and adjusting the preload of the spring 8.

[0027] Two first metal tubes 5 are fixedly connected to the ends of a second grip handle 4, and two second metal tubes 6 are fixedly connected to the ends of a first grip handle 2. The grip control fixture is realized through the first grip handle 2 and the second grip handle 4.

[0028] The first waterway 95 is provided with a first block 11, which is located between the first metal pipe 5 and the second metal pipe 6. One end of the second waterway 104 is fixedly connected to a second block 12. The first block 11 and the second block 12 are used to seal the first waterway 95 and the second waterway 104, respectively. In addition, the first block 11 and the second block 12 can be permanently fixed by welding.

[0029] The technical means disclosed in this utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A battery butt welding fixture, comprising a first clamping block (9) and a second clamping block (10), wherein the first clamping block (9) comprises a first block (91) and a first clamping groove (92) is provided in the middle of one side of the first block (91), and the second clamping block (10) comprises a second block (101) and a second clamping groove (102) is provided in the middle of the second block (101), the first clamping block (9) and the second clamping block (10) are assembled, and the first clamping groove (92) and the second clamping groove (102) form a circular through hole, characterized in that, The first block (91) has a first waterway (95) inside, and a first connection port (93) is provided at both ends of the first waterway (95). A first metal pipe (5) is fixedly connected to the first connection port (93). The second block (101) has a second waterway (104) inside, and a second connection port (103) is provided at both ends of the second waterway (104). The second connection port (103) is fixedly connected to a second metal pipe (6).

2. The battery butt welding tool according to claim 1, wherein: The first block (91) has through holes (94) on both sides, and the second metal tube (6) passes through the through holes (94).

3. The battery butt welding tool according to claim 1, wherein: The end of the second metal tube (6) is fixedly connected to a three-way tube (1), one end of the three-way tube (1) is fixedly connected to a flexible tube (3), and the other end of the flexible tube (3) is fixedly connected to the end of the first metal tube (5).

4. The battery butt welding tool according to claim 1, wherein: A limiting ring (7) is threaded onto the second metal tube (6), and a spring (8) is sleeved on the second metal tube (6). One end of the spring (8) abuts against the limiting ring (7), and the other end abuts against the first clamping block (9).

5. The battery butt welding tool according to claim 1, wherein: The ends of the two first metal tubes (5) are fixedly connected to a second grip handle (4), and the ends of the two second metal tubes (6) are fixedly connected to a first grip handle (2).

6. The battery butt welding tool according to claim 1, wherein: The first waterway (95) is provided with a first block (11) inside, and a second block (12) is fixedly connected to one end of the second waterway (104).