A long-life electrode rod structure

Abstract

The utility model discloses a kind of high-life welding electrode rod structures, including lower electrode and lower electrode holder, the lower electrode holder is integrated structure, inside is provided with through cooling water channel, the cooling water channel around of lower electrode holder top is provided with sealing ring groove, lower electrode holder is installed in lower electrode bottom and is fixedly connected by dowel and bolt, the end of lower electrode holder away from lower electrode is embedded and installed with lower electrode connecting piece, the copper pipe embedded in the inside of lower electrode connecting piece is provided in the center of cooling water channel, two groups of pipeline joints are installed in lower electrode connecting piece side surface.The utility model adopts integrated structure, cancels split quick-change design, enhances structural stability, internally set through cooling water channel, electrode material uses copper base alloy, and optimizes its component ratio, with long welding life, good heat dissipation effect, low maintenance cost Advantage, suitable for lug pole welding equipment.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a long-life welding electrode rod structure. Background Technology

[0002] In the welding process of power battery tabs and terminals, the electrode rod is a key welding component. Traditional electrode rods are mostly split quick-change structures, and the quick-change copper sheet at the top has a short service life, only about 3,000 welding cycles per cycle. After repair, the total service life is only 20,000 to 30,000 cycles, which cannot meet the long-term stable use requirements under high production capacity and has high maintenance costs. Utility Model Content

[0003] To address the aforementioned technical issues, a high-life welding electrode rod structure is provided. Through structural optimization and material innovation, the welding life is significantly improved, while maintenance frequency and costs are reduced.

[0004] To achieve the above objectives, this utility model discloses a high-life welding electrode rod structure, including a lower electrode and a lower electrode seat. The lower electrode seat is an integral structure with a through-type cooling water channel inside. A sealing ring groove is provided around the cooling water channel at the top of the lower electrode seat. The lower electrode seat is installed at the bottom of the lower electrode and is fixedly connected by pins and bolts. A lower electrode connector is embedded at the end of the lower electrode seat away from the lower electrode. A copper tube is embedded inside the lower electrode connector at the center of the cooling water channel. Two sets of pipe joints are installed on the side of the lower electrode connector.

[0005] Furthermore, the lower electrode and the lower electrode holder are made of copper-based alloy material.

[0006] Furthermore, the top shape of the lower electrode holder matches the bottom shape of the lower electrode.

[0007] Furthermore, the pipe connector is a pagoda connector, including an outlet pipe near the lower electrode seat and an inlet pipe away from the lower electrode seat, wherein the inlet pipe is electrically connected to the copper pipe and the inner cavity of the lower electrode connector, and the outlet pipe is electrically connected to the space between the outer wall of the copper pipe and the inner wall of the cooling water channel.

[0008] Furthermore, the sealing ring groove has a rounded rectangular structure, and at least four sets of screw positioning holes and at least two sets of pin holes are symmetrically distributed around the lower electrode seat and the lower electrode surface around the sealing ring groove.

[0009] Furthermore, the surface of the top boss of the lower electrode is a welding area, and the welding area is provided with a groove with a single-sided rounded chamfer. The center of the side of the lower electrode near the lower electrode seat has an irregular hole that extends into the inside of the boss and is connected to the cooling water channel.

[0010] Furthermore, a clamping groove is provided on the surface of the rod body near the lower electrode of the lower electrode seat.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a high-life welding electrode rod structure, which adopts an integrated structure, eliminates the split quick-change design, enhances structural stability, and has an internal through-type cooling water channel that extends to the top of the electrode to improve heat dissipation efficiency. The electrode material is a copper-based alloy with optimized composition ratio. The top size of the lower electrode seat is perfectly matched with the bottom of the lower electrode to improve welding contact quality. The pins on both sides and four screw positioning holes enable quick positioning and assembly with the welding block. It has the advantages of long welding life, good heat dissipation effect, and low maintenance cost, and is suitable for electrode tab and electrode post welding equipment. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the lower electrode structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the lower electrode holder structure of this utility model.

[0017] Figure 5 This is a schematic diagram of the lower electrode connector structure of this utility model.

[0018] In the diagram: 1 is the lower electrode; 11 is the boss; 12 is the welding area; 13 is the irregular hole; 2 is the lower electrode seat; 21 is the cooling water channel; 22 is the sealing ring groove; 3 is the lower electrode connector; 4 is the pipe joint; 41 is the water inlet pipe; 42 is the water outlet pipe; 5 is the copper pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] One embodiment of this utility model is as follows: Figure 1 and Figure 2As shown, the lower electrode holder 2 is an integrated structure, enhancing structural stability. It has an internal through-type cooling water channel 21 extending to the top of the lower electrode, improving heat dissipation efficiency. Sealing ring grooves 22 are provided around the cooling water channel 21 at the top of the lower electrode holder 2. The lower electrode holder 2 is installed at the bottom of the lower electrode 1 and fixedly connected by pins and bolts, enabling rapid positioning and assembly of the lower electrode and the lower electrode holder, ensuring structural stability. The top shape of the lower electrode holder 2 matches the bottom shape of the lower electrode 1, improving welding contact quality. A lower electrode connector 3 is embedded at the end of the lower electrode holder 2 away from the lower electrode 1. A copper tube 5 is embedded inside the lower electrode connector 3 at the center of the cooling water channel 21. Two sets of pipe joints 4 are installed on the side of the lower electrode connector 3. When applied to electrode tab / post welding scenarios, the lifespan can be increased to 200,000 welding cycles per cycle, and it can be continuously repaired and reused, increasing the overall lifespan to 1 million to 2 million cycles.

[0021] like Figure 1 and Figure 5 As shown, the pipe connector 4 is a pagoda connector, including an outlet pipe 42 near the lower electrode base 2 and an inlet pipe 41 away from the lower electrode base 2. The inlet pipe 41 is electrically connected to the copper pipe 5 and the inner cavity of the lower electrode connector 3, while the outlet pipe 42 is electrically connected to the space between the outer wall of the copper pipe 5 and the inner wall of the cooling water channel 21. During the cooling process, cooling water is injected into the inlet pipe. The cooling water flows from the inner cavity of the lower electrode connector and the copper pipe to the irregular hole at the bottom of the lower electrode to cool the overheated lower electrode. The cooled water then flows from the gap between the outer side of the copper pipe and the inner side of the cooling water channel to the outlet pipe and is discharged from the lower electrode rod.

[0022] like Figure 3 and Figure 4 As shown, the sealing ring groove 22 has a rounded rectangular structure. At least four sets of screw positioning holes and at least two sets of pin holes are symmetrically distributed on the surfaces of the lower electrode seat 2 and the lower electrode 1 around the sealing ring groove 22. One set of pin holes has a waist-shaped groove structure to reduce misalignment error.

[0023] The surface of the top boss 11 of the lower electrode 1 is a welding area 12. The welding area 12 is provided with a groove with a single-sided rounded chamfer. A special-shaped hole 13 is opened in the center of the side of the lower electrode 1 near the lower electrode seat 2, which is connected to the cooling water channel 21. In this embodiment, the special-shaped hole adopts an H-shaped structure that is wide at both ends and narrow in the middle. Other special-shaped holes can also be used as different embodiment schemes. The setting of the special-shaped hole increases the contact area between the cooling water and the lower electrode, thereby improving the cooling efficiency.

[0024] The rod surface of the lower electrode holder 2 near the lower electrode 1 has a clamping slot, which facilitates clamping and fixing of the lower electrode holder for quick assembly and disassembly.

[0025] Several points need to be clarified: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and the relative positional relationships may change when the absolute position of the described objects changes. Second, in this document, relational terms such as "first" and "second" are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.

[0026] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. A high-life welding electrode rod structure, comprising a lower electrode (1) and a lower electrode holder (2), characterized in that, The lower electrode seat (2) is an integral structure with a through-type cooling water channel (21) inside. The cooling water channel (21) at the top of the lower electrode seat (2) is surrounded by a sealing ring groove (22). The lower electrode seat (2) is installed at the bottom of the lower electrode (1) and is fixedly connected by pins and bolts. The lower electrode connector (3) is embedded at the end of the lower electrode seat (2) away from the lower electrode (1). A copper pipe (5) is embedded in the lower electrode connector (3) at the center of the cooling water channel (21). Two sets of pipe joints (4) are installed on the side of the lower electrode connector (3).

2. The high-life welding electrode rod structure according to claim 1, characterized in that, The lower electrode (1) and the lower electrode holder (2) are made of copper-based alloy material.

3. The high-life welding electrode rod structure according to claim 1, characterized in that, The top shape of the lower electrode holder (2) matches the bottom shape of the lower electrode (1).

4. A high-life welding electrode rod structure according to claim 1, characterized in that, The pipe connector (4) is a pagoda connector, including an outlet pipe (42) near the lower electrode seat (2) and an inlet pipe (41) away from the lower electrode seat (2). The inlet pipe (41) is connected to the inner cavity of the copper pipe (5) and the lower electrode connector (3), and the outlet pipe (42) is connected to the space between the outer wall of the copper pipe (5) and the inner wall of the cooling water channel (21).

5. A high-life welding electrode rod structure according to claim 1, characterized in that, The sealing ring groove (22) has a rounded rectangular structure. At least four sets of screw positioning holes and at least two sets of pin holes are symmetrically distributed on the surfaces of the lower electrode seat (2) and the lower electrode (1) around the sealing ring groove (22).

6. A high-life welding electrode rod structure according to claim 1, characterized in that, The surface of the top boss (11) of the lower electrode (1) is a welding area (12). The welding area (12) is provided with a groove with a single-sided rounded chamfer. The lower electrode (1) has a special-shaped hole (13) that extends into the inside of the boss (11) and is connected to the cooling water channel (21) at the center of the side of the lower electrode (1) near the lower electrode seat (2).

7. A high-life welding electrode rod structure according to claim 1, characterized in that, The lower electrode holder (2) has a clamping slot on the rod surface near the lower electrode (1).

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