A comb plate structure for welding side lugs and a welding fixture for lead-acid batteries

By using a comb-plate structure and manual welding methods with welding fixtures, the problems of high cost and long cycle of lead-acid battery mold design changes were solved, enabling rapid and low-cost product verification and production.

CN224424754UActive Publication Date: 2026-06-30CAMEL GRP XIANGYANG BATTERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CAMEL GRP XIANGYANG BATTERY
Filing Date
2025-07-24
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The design changes to existing lead-acid battery welding molds are costly and time-consuming, making it difficult to meet the rapid verification needs of R&D, sample production, small-batch orders, and customized products.

Method used

The system employs a comb plate structure and welding fixtures, including positive electrode plate comb teeth, negative electrode plate comb teeth, side pressure blocks, and intermediate pressure strips. Combined with a fixture structure and feeding mechanism, it enables manual welding of electrode groups, avoiding the need for mold making.

Benefits of technology

It reduces development costs, shortens development time, and allows for rapid verification of product performance, making it suitable for rapidly changing design requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

A comb plate structure for welding side lugs and a welding fixture for lead-acid batteries are disclosed. The positive and negative electrode plates of the battery mate with the comb teeth of the comb plate. Lead-biased parts and straight terminals are placed in the grooves of the comb plate. The fixture includes a feeding structure for placing the comb plate, a clamping structure for clamping the electrode group, and a frame for placing the clamping structure. The electrode group is fixed by manually turning the handwheel of the frame, and the comb plate and lugs are fixed by manually turning the handwheel of the feeding structure to weld the lead-biased parts and the lugs of the electrode group together, thereby assembling the battery. This structure is suitable for electrode plates with side lug structures, which can save R&D costs, shorten development time, and quickly verify design schemes.
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Description

Technical Field

[0001] This utility model relates to the field of lead-acid battery structure technology, specifically to a comb plate and welding fixture for manually welding the lugs of a lead-acid battery. Background Technology

[0002] With the development of science and technology, the requirements for lead-acid batteries are becoming increasingly stringent. In the early stages of research and development, a comb plate and matching direct and offset terminals were designed to verify the design scheme for battery assembly, eliminating the need for designing and opening casting and welding molds. Casting and welding molds are only opened after the initial performance verification is successful. The comb plate is relatively easy and inexpensive to manufacture, and allows for quick switching between welding different models, arrangements, and even sizes of electrode groups. It is ideal for R&D prototyping, small-batch trial production, multi-variety small-batch production, and customized needs. Casting and welding molds, on the other hand, require a mold that, once manufactured, can only be used to weld battery packs with a specific design. Any design change necessitates redesigning and manufacturing a new mold, resulting in high costs and long lead times. This approach is only suitable for long-term, high-volume products with fully finalized designs.

[0003] For R&D, sample making, small-batch orders (especially multiple models), customized products, or when the budget is limited and the product design is not yet finalized, manual comb board welding is a better, or even the only, feasible option. Summary of the Invention

[0004] The purpose of this utility model is to provide a comb plate structure for welding side plate ears and a welding fixture for lead-acid batteries. By designing the positive plate side pressure block, the middle pressure strip, and the negative plate side pressure block, and cooperating with the comb teeth of the positive plate and the comb teeth of the negative plate, the welding of the side plate ears on one side of the plate can be achieved. This can quickly verify the design scheme and save development costs and development time.

[0005] A welding fixture for lead-acid batteries, characterized in that: it includes a welding frame, the lower part of which is a frame body, the frame body including a frame for placing a fixture structure, and a fixture structure installed in the middle of the frame. The fixture structure includes a fixed clamping plate assembly, a movable clamping plate assembly, and an adjustment assembly for moving the movable clamping plate assembly back and forth to clamp / release the electrode group; the fixed clamping plate assembly includes a plurality of fixed clamping plates arranged in sequence; the movable clamping plate assembly includes a clamping plate frame, and a plurality of movable clamping plates arranged in sequence fixed within the clamping plate frame, wherein a movable clamping plate of the movable clamping plate assembly cooperates with a fixed clamping plate of the fixed clamping plate assembly to form a positioning space B for positioning the electrode group;

[0006] The upper part of the welding frame is a comb plate structure, which includes comb teeth for the positive electrode plate, a positive electrode plate side pressing block, an intermediate pressing strip, comb teeth for the negative electrode plate, and a negative electrode plate side pressing block. The inner side of the comb teeth of the positive electrode plate has multiple recesses, and the bottom surface of each recess has multiple comb tooth grooves evenly distributed for fixing the positive electrode lugs of the electrode group. The groove openings have guide chamfers, and the bottom of the inner side of the comb teeth of the positive electrode plate has a convex stop. The positive electrode plate side pressing block near the comb teeth of the positive electrode plate has grooves on its side that mate with the offset post and the direct post. One side of the bottom of the positive electrode plate side pressing block has a concave stop that mates with the convex stop. On the other side of the bottom is a convex stop one; the inner side of the comb teeth of the negative electrode plate has multiple recesses, and the bottom surface of each recess has multiple comb tooth grooves evenly distributed for fixing the negative plate ears of the electrode group. The groove openings of the comb teeth have guide chamfers. The bottom of the inner side of the comb teeth of the positive electrode plate has a convex stop two; the side of the negative electrode plate side pressure block near the comb teeth of the negative electrode plate has grooves that cooperate with the bias pole and the straight pole. One side of the bottom of the negative electrode plate side pressure block has a concave stop two that cooperates with the convex stop two, and the other side of the bottom of the negative electrode plate side pressure block has a convex stop three; the bottom sides of the middle pressure strip have concave stops one that cooperate with the convex stop three and the convex stop one.

[0007] The adjustment assembly includes a lead screw, a lead screw nut that cooperates with the lead screw, a handwheel fixed to one end of the lead screw, and the other end of the lead screw fixed to the clamp frame.

[0008] The clamping frame has a push plate at one end, and the other end of the lead screw is fixed to the push plate at the end of the clamping frame.

[0009] The end of the fixed clamping plate assembly is fixed to the end fixing post.

[0010] The comb structure also includes a feeding mechanism, which includes two symmetrically arranged lead screws. One end of the two lead screws is connected by a transmission assembly, and the other end of the two lead screws is equipped with a rotating handwheel. Each lead screw has two threaded sections, namely threaded section one and threaded section two, with opposite rotation directions. A nut is installed at threaded section one and threaded section two of each lead screw. The two ends of the comb teeth of the positive electrode plate are connected to the nut installed at threaded section one, and the two ends of the comb teeth of the negative electrode plate are connected to the nut installed at threaded section two. The positive electrode plate side pressure block, the intermediate pressure strip, and the negative electrode plate side pressure block are all placed on the frame.

[0011] The two ends of the comb teeth of the positive electrode plate are connected to the nut installed in the first thread section via a bracket, and the two ends of the comb teeth of the negative electrode plate are connected to the nut installed in the second thread section via a bracket.

[0012] The lead screw is mounted on the upper part of the frame via a bearing seat.

[0013] The transmission assembly includes a sprocket mounted at one end of each lead screw and a chain that meshes with each sprocket for transmission.

[0014] A comb plate structure for welding side plate ears, characterized in that it includes comb teeth of a positive electrode plate, a positive electrode plate side pressing block, an intermediate pressing strip, comb teeth of a negative electrode plate, and a negative electrode plate side pressing block; the inner side surface of the comb teeth of the positive electrode plate has multiple recesses, and the bottom surface of each recess has multiple comb tooth grooves evenly distributed for fixing each positive electrode ear of the electrode group, the groove openings of the comb teeth have guide chamfers, and the bottom of the inner side surface of the comb teeth of the positive electrode plate has a convex stop; the side surface of the positive electrode plate side pressing block near the comb teeth of the positive electrode plate has grooves that cooperate with the offset post and the straight post, and one side of the bottom of the positive electrode plate side pressing block has a concave stop that cooperates with the convex stop; the positive electrode plate side... The other side of the bottom of the pressure block is a convex stop one; the inner side of the comb teeth of the negative electrode plate has multiple recesses, and the bottom surface of each recess has multiple comb tooth grooves evenly distributed for fixing the negative plate ears of the electrode group. The groove openings of the comb teeth have guide chamfers. The bottom of the inner side of the comb teeth of the positive electrode plate has a convex stop two; the side of the negative electrode plate side pressure block near the comb teeth of the negative electrode plate has grooves that cooperate with the bias pole and the straight pole. One side of the bottom of the negative electrode plate side pressure block is a concave stop two that cooperates with convex stop two, and the other side of the bottom of the negative electrode plate side pressure block is a convex stop three; the bottom sides of the middle pressure strip are concave stops one that cooperate with convex stop three and convex stop one.

[0015] The comb structure also includes a feeding mechanism, which includes two symmetrically arranged lead screws. One end of the two lead screws is connected by a transmission assembly, and the other end of the two lead screws is equipped with a rotating handwheel. Each lead screw has two threaded sections, namely threaded section one and threaded section two, with opposite rotation directions. A nut is installed at threaded section one and threaded section two of each lead screw. The two ends of the comb teeth of the positive electrode plate are connected to the nut installed at threaded section one, and the two ends of the comb teeth of the negative electrode plate are connected to the nut installed at threaded section two. The positive electrode plate side pressure block, the intermediate pressure strip, and the negative electrode plate side pressure block are all placed on the frame.

[0016] The two ends of the comb teeth of the positive electrode plate are connected to the nut installed in the first threaded section via a bracket, and the two ends of the comb teeth of the negative electrode plate are connected to the nut installed in the second threaded section via a bracket; the lead screw is mounted on the upper part of the frame via a bearing seat; the transmission assembly includes a sprocket installed at one end of each lead screw and a chain that meshes with each sprocket for transmission.

[0017] The beneficial effects of this utility model are:

[0018] 1. Reduced costs: This development eliminates the need for casting and welding molds. Lead parts and comb plates are used directly for manual welding of the electrode group, saving on mold costs.

[0019] 2. Shortened development time: The mold opening cycle for casting and welding molds is 45-60 days, and the processing of comb plates is about one week, which greatly shortens the development time.

[0020] 3. Rapidly verify product performance: The product can be assembled and tested in a short period of time, and it can be quickly determined whether the design can meet customer requirements. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the lead-biased component.

[0022] Figure 2 This is a schematic diagram of the structure of a straight pole.

[0023] Figure 3 This is a schematic diagram of the negative electrode plate side pressure block.

[0024] Figure 4 for Figure 3 Cross-sectional view;

[0025] Figure 5 This is a schematic diagram of the negative electrode plate side pressure block.

[0026] Figure 6 for Figure 5 Cross-sectional view;

[0027] Figure 7 This is a schematic diagram of the structure of the intermediate pressure strip;

[0028] Figure 8 for Figure 7 Side view;

[0029] Figure 9 This is a schematic diagram of the structure of the positive electrode side pressure block;

[0030] Figure 10 for Figure 9 Cross-sectional view;

[0031] Figure 11 This is a schematic diagram of the comb teeth structure of the positive electrode plate;

[0032] Figure 12 for Figure 11 Cross-sectional view;

[0033] Figure 13 A structural diagram of the frame and clamping structure;

[0034] Figure 14 This is a schematic diagram of the feed structure;

[0035] The components include: 1. Lead-biased component; 2. Straight electrode post; 3-1. Comb teeth of positive electrode plate; 3-2. Side pressure block of positive electrode plate; 3-3. Intermediate pressure strip; 3-4. Comb teeth of negative electrode plate; 3-5. Side pressure block of negative electrode plate; 4-1. Handwheel; 4-2. Frame; 5-1. Push plate; 5-2. Fixed clamping plate; 5-3. Moving clamping plate; 5-4. End fixing post; 6-1. Rotating handwheel; 6-2. Lead screw; 6-3. Bracket; 6-4. Sprocket; 6-5. Chain. Detailed Implementation

[0036] To more clearly illustrate the design schemes in the embodiments of this utility model, the utility model will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not limiting. Obviously, the drawings in the following description are only some embodiments of this utility model. For those skilled in the art, all other embodiments obtained without creative effort are within the protection scope of this utility model.

[0037] The present invention will now be described in further detail with reference to the accompanying drawings. The present invention is described in the following two parts:

[0038] 1. The comb plate structure of this utility model includes comb teeth of the positive electrode plate, side pressure block of the positive electrode plate, intermediate pressure strip, comb teeth of the negative electrode plate, and side pressure block of the negative electrode plate.

[0039] 1) The comb teeth of the positive electrode plate are evenly spaced, and there are comb tooth grooves between adjacent comb teeth. The comb tooth grooves are used to fix the positive plate lugs of the electrode group. The head of the comb tooth groove has a protruding triangular structure to facilitate the lugs entering the groove and to provide guidance. The overall protruding structure of the head of the comb tooth groove is used to cooperate with the pressing block.

[0040] 2) The positive electrode plate side clamping block has grooves that mate with the offset post and the straight post, used to place the offset post and the straight post. Both the upper and lower sides have protruding and concave structures for mate with the clamping block and the comb teeth.

[0041] 3) The bottom surface structure of the horizontal part of the intermediate pressure strip matches the stepped protruding top surface of the corresponding positive plate side groove structure and negative plate side groove structure.

[0042] 4) The comb teeth of the negative electrode plate are evenly spaced, and there are comb tooth grooves between adjacent comb teeth. The comb tooth grooves are used to fix the positive plate lugs of the electrode group. The head of the comb tooth groove has a protruding triangular structure to facilitate the lugs entering the groove and to provide guidance. The overall protruding structure of the head of the comb tooth groove is used to cooperate with the pressure block.

[0043] 5) The negative electrode plate side clamping block has grooves that mate with the bias post and the straight post, used to place the bias post and the straight post. Both the upper and lower sides have protruding and concave structures for mate with the clamping block and the comb teeth.

[0044] 2. The welding frame of this utility model includes a frame body, a clamping structure, and a feeding structure.

[0045] 1) The frame mainly consists of a frame and a handwheel. The frame is mainly used to house the clamping structure, and the handwheel is mainly used to control the clamping of the clamping structure.

[0046] 2) The fixture structure mainly includes a push plate, a fixed clamping plate, a movable clamping plate, a plate fixing block, and an edge fixing post. The electrode group is placed in the 6 cells of the fixture structure. The push plate is pushed by the handwheel. The movable clamping plate is fixed together with the push plate, so that the movable clamping plate moves to the left, and the electrode plate is fixed between the movable clamping plate and the fixed clamping plate.

[0047] 3) The feed structure mainly includes a handwheel, lead screw, bracket, and chain. It is mainly used for opening and closing the comb plate. The forward feed is used to fix the lugs and lead parts, which are then manually welded. After welding, the reverse feed is used to remove the electrode group.

[0048] like Figure 1 As shown, this utility model includes a lead-biased component 1 and a straight electrode post 2, which are used to be placed on a comb plate.

[0049] The comb teeth 3-1 of the positive electrode plate are spaced apart by comb tooth grooves 3-1-1, which are used to fix the positive plate lugs of the electrode group. The head of the comb tooth groove has a protruding structure (i.e., a convex stop) 3-1-2, which is used to cooperate with the concave stop 3-2-2 of the positive electrode plate side pressure block 3-2.

[0050] The positive electrode plate side pressure block 3-2 has a groove on the upper part that mates with the bias post and the straight post, for placing the bias post 1 and the straight post 2. The bottom sides have a protruding structure (i.e., convex stop 1) 3-2-3 and an inwardly concave structure (i.e., concave stop 3-2-2).

[0051] The negative electrode plate side pressure block 3-4 has a groove on the upper part that mates with the bias post 1 and the straight post 2, which is used to place the bias post and the straight post. The bottom side has a convex stop 3-4-2 and a concave stop 2 3-4-3, which are used to mate with the pressure block and the comb teeth.

[0052] The two concave stops 3-3-1 on the bottom surface of the horizontal part of the middle pressure strip 3-3 are matched with the corresponding convex stops 3-2-3 and convex stops 3-4-2.

[0053] The comb teeth 3-5 of the negative electrode plate have comb tooth grooves 3-5-1 between adjacent comb teeth, which are evenly distributed. The comb tooth grooves are used to fix the positive plate ears of the electrode group. The structure with the head of the comb tooth groove protruding as a whole (i.e., the convex stop second) 3-5-2 is used to cooperate with the concave stop second 3-4-3 of the negative electrode plate side pressure block 3-4.

[0054] This utility model includes a frame 4-2 and a handwheel 4-1 in the frame body. The frame 4-1 is used to place the clamping structure 5. The handwheel 4-2 and the push plate 5-1 of the clamping structure 5 are connected by a screw and fixed with a nut.

[0055] This utility model includes a push plate 5-1 in the clamping structure that is fixed to a handwheel 4-1 in the frame. By turning the handwheel 4-1, the push plate 5-1 pushes the moving clamping plate 5-3 to move, which cooperates with the fixed clamping plate 5-2 to fix the pole group. The end fixing post 5-4 is used to connect the other side of the clamping structure to the frame.

[0056] The positive electrode side pressure block 3-2, the intermediate pressure strip 3-3, and the negative electrode side pressure block 3-4 are all placed on the frame at both ends. Bolts A are installed on the positive electrode side pressure block 3-2, the intermediate pressure strip 3-3, and the negative electrode side pressure block 3-4 near both ends to form handles.

[0057] This utility model includes a welding feed structure. The electrode group is installed in the clamp structure 5. The bracket 6-3 is used to fix the comb teeth 3-1 of the positive electrode plate and the comb teeth 3-4 of the negative electrode plate. By rotating the handwheel 6-1 for forward feed, the comb teeth will move on the lead screw 6-2, thereby fixing the plate ears and the comb plate, and placing the lead-biased part 1 and the straight electrode post 2 on the comb plate, at which point welding can be performed. The sprocket 6-4 is fixed to the lead screw 6-2, and the chain 6-5 is connected through the sprocket 6-4 to connect the two sides of the comb plate for simultaneous movement. After welding, by reversing the feed by the handwheel 6-1, the comb plate moves in the opposite direction. The middle pressure block 3-3, the positive electrode plate side pressure block 3-2, and the negative electrode plate side pressure block 3-5 are removed by the handle; thus, the electrode group is removed, completing the welding of a single electrode group to the lead part.

Claims

1. A lead-acid battery welding fixture characterized by: The assembly includes a welding frame, the lower part of which is a frame body. The frame body includes a frame for placing the clamping structure and a clamping structure installed in the middle of the frame. The clamping structure includes a fixed clamping plate assembly, a movable clamping plate assembly, and an adjustment assembly for moving the movable clamping plate assembly back and forth to clamp / release the electrode group. The fixed clamping plate assembly includes multiple fixed clamping plates (5-2) arranged in sequence. The movable clamping plate assembly includes a clamping plate frame and multiple movable clamping plates (5-3) arranged in sequence fixed within the clamping plate frame. One movable clamping plate (5-3) of the movable clamping plate assembly cooperates with a fixed clamping plate (5-2) of the fixed clamping plate assembly to form a positioning space B for positioning the electrode group. The upper part of the welding frame is a comb plate structure, which includes comb teeth (3-1) for the positive electrode plate, side pressure blocks (3-2) for the positive electrode plate, intermediate pressure strip (3-3), comb teeth (3-5) for the negative electrode plate, and side pressure blocks (3-4) for the negative electrode plate. The comb teeth (3-1) of the positive electrode plate have multiple recesses on the inner side surface, and the bottom surface of each recess has multiple comb tooth grooves (3-1-1) evenly distributed for fixing the positive plate ears of the electrode group. The groove openings have guide chamfers. The bottom of the inner side of the comb teeth (3-1) of the positive electrode plate has a convex stop (3-1-2); the positive electrode plate side pressure block (3-2) near the comb teeth (3-1) of the positive electrode plate has a groove (3-2-1) on the upper side of its side that mates with the offset post (1) and the straight post (2); one side of the bottom of the positive electrode plate side pressure block (3-2) has a concave stop (3-2-2) that mates with the convex stop (3-1-2); the other side of the bottom of the positive electrode plate side pressure block (3-2) has a convex stop. Mouth 1 (3-2-3); The inner side of the comb teeth (3-5) of the negative electrode plate has multiple recesses, and the bottom surface of each recess has multiple comb tooth grooves (3-5-1) evenly distributed for fixing the negative plate ears of the electrode group. The groove openings have guide chamfers. The bottom of the inner side of the comb teeth (3-5) of the positive electrode plate has a convex stop (3-5-2); The side of the negative electrode plate side pressure block (3-4) near the comb teeth (3-5) of the negative electrode plate has a convex stop (1) with the polarization post (1) The groove (3-4-1) that matches the straight electrode post (2) is located on one side of the bottom of the negative electrode plate side pressure block (3-4), which matches the second concave stop (3-4-3) that matches the second convex stop (3-5-2), and the other side of the bottom of the negative electrode plate side pressure block (3-4) is the third convex stop (3-4-2); the bottom sides of the middle pressure strip (3-3) are the first concave stop (3-3-1) that matches the third convex stop (3-4-2) and the first convex stop (3-2-3).

2. A lead-acid battery welding fixture according to claim 1, characterised in that: The adjustment assembly includes a lead screw, a lead screw nut that cooperates with the lead screw, a handwheel (4-1) fixed to one end of the lead screw, and the other end of the lead screw fixed to the clamp frame.

3. A lead-acid battery welding fixture according to claim 2, characterised in that: The clamping frame has a push plate (5-1) at one end, and the other end of the screw is fixed to the push plate (5-1) at the end of the clamping frame.

4. The lead-acid battery welding fixture of claim 1, wherein: The end of the fixed clamping plate assembly is fixed to the end fixing post (5-4).

5. The lead-acid battery welding fixture of claim 1, wherein: The comb structure also includes a feeding mechanism, which includes two symmetrically arranged lead screws (6-2). One end of the two lead screws (6-2) is connected by a transmission assembly, and the other end of the two lead screws (6-2) is equipped with a rotating handwheel (6-1). Each lead screw (6-2) has two threaded sections, one and two, with opposite rotation directions. Each lead screw (6-2) is equipped with a nut at one of the threaded sections and the other at the threaded section. The two ends of the comb teeth (3-1) of the positive electrode plate are connected to the nut installed at the threaded section one, and the two ends of the comb teeth (3-5) of the negative electrode plate are connected to the nut installed at the threaded section two. The positive electrode plate side pressure block (3-2), the intermediate pressure strip (3-3), and the negative electrode plate side pressure block (3-4) are all placed on the frame.

6. A lead-acid battery welding fixture according to claim 5, characterised in that: The two ends of the comb teeth (3-1) of the positive electrode plate are connected to the nut installed in the first thread section via the bracket (6-3), and the two ends of the comb teeth (3-5) of the negative electrode plate are connected to the nut installed in the second thread section via the bracket (6-3).

7. The lead-acid battery welding fixture of claim 5, wherein: The lead screw (6-2) is mounted on the upper part of the frame via a bearing seat.

8. The lead-acid battery welding fixture of claim 5, wherein: The transmission assembly includes a sprocket mounted at one end of each lead screw (6-2) and a chain (6-5) meshing with each sprocket for transmission.

9. A comb plate structure for welding side lugs, characterized in that, This includes the comb teeth (3-1) of the positive electrode plate, the side pressing block (3-2) of the positive electrode plate, the intermediate pressing strip (3-3), the comb teeth (3-5) of the negative electrode plate, and the side pressing block (3-4) of the negative electrode plate; the inner side of the comb teeth (3-1) of the positive electrode plate has multiple recesses, and the bottom surface of each recess has multiple comb tooth grooves (3-1-1) evenly distributed for fixing the positive electrode lugs of the electrode group. The groove openings of the comb teeth have guide chamfers. The comb teeth (3-1) of the positive electrode plate The inner side bottom has a convex stop (3-1-2); the positive electrode plate side pressure block (3-2) near the comb teeth (3-1) of the positive electrode plate has a groove (3-2-1) on its side surface that mates with the offset post (1) and the straight post (2); one side of the bottom of the positive electrode plate side pressure block (3-2) has a concave stop (3-2-2) that mates with the convex stop (3-1-2); the other side of the bottom of the positive electrode plate side pressure block (3-2) has a convex stop (3-2-3). The inner side of the comb teeth (3-5) of the negative electrode plate has multiple recesses, and the bottom surface of each recess has multiple comb tooth grooves (3-5-1) evenly distributed for fixing the negative plate ears of the electrode group. The groove openings have guide chamfers. The bottom of the inner side of the comb teeth (3-5) of the positive electrode plate has a convex stop (3-5-2). The side of the negative electrode plate side pressure block (3-4) near the comb teeth (3-5) of the negative electrode plate has a polarization post (1) and a straight electrode. The groove (3-4-1) of the column (2) is fitted with the negative electrode plate side pressure block (3-4). One side of the bottom of the negative electrode plate side pressure block (3-4) is the concave stop (3-4-3) that fits with the convex stop (3-5-2). The other side of the bottom of the negative electrode plate side pressure block (3-4) is the convex stop (3-4-2). The two sides of the bottom of the middle pressure strip (3-3) are the concave stop (3-3-1) that fits with the convex stop (3-4-2) and the convex stop (3-2-3). The comb structure also includes a feeding mechanism, which includes two symmetrically arranged lead screws (6-2). One end of the two lead screws (6-2) is connected by a transmission assembly, and the other end of the two lead screws (6-2) is equipped with a rotating handwheel (6-1). Each lead screw (6-2) has two threaded sections, one and two, with opposite rotation directions. Each lead screw (6-2) is equipped with a nut at one of the threaded sections and the other at the threaded section. The two ends of the comb teeth (3-1) of the positive electrode plate are connected to the nut installed at the threaded section one, and the two ends of the comb teeth (3-5) of the negative electrode plate are connected to the nut installed at the threaded section two. The positive electrode plate side pressure block (3-2), the intermediate pressure strip (3-3), and the negative electrode plate side pressure block (3-4) are all placed on the frame.

10. The comb plate structure for welding side lugs according to claim 9, characterized in that: The comb teeth (3-1) of the positive electrode plate are connected at both ends to the nut installed in the first threaded section via the bracket (6-3), and the comb teeth (3-5) of the negative electrode plate are connected at both ends to the nut installed in the second threaded section via the bracket (6-3); the lead screw (6-2) is mounted on the upper part of the frame via the bearing seat; the transmission assembly includes a sprocket installed at one end of each lead screw (6-2) and a chain (6-5) meshing with each sprocket for transmission.