Battery piece assembly soldering machine

The battery cell assembly soldering machine, which integrates a main feeding track and a multi-functional mechanism, has achieved fully automated production line production of battery modules, solving the problems of low efficiency and difficulty in guaranteeing quality in traditional manual assembly, and improving production efficiency and product quality.

CN224575107UActive Publication Date: 2026-07-31DONGGUAN NUOXING AUTOMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN NUOXING AUTOMATION TECH CO LTD
Filing Date
2025-07-14
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Traditional battery module assembly relies on manual operation, which is inefficient, difficult to guarantee quality, and requires multiple machines to process in steps, which cannot meet the efficiency requirements of mass production and has a low degree of automation.

Method used

A battery cell assembly soldering machine was designed, which integrates a main feeding track, a shell feeding mechanism, a battery cell assembly mechanism, a bending mechanism, a detection mechanism, and a soldering mechanism. It achieves fully automated assembly line operation through a transverse pushing mechanism, reducing handling steps and completing all processes on one machine.

Benefits of technology

It improves assembly efficiency, saves manpower and resources, reduces floor space, ensures product quality, and can automatically reject defective products, meeting the needs of modern production.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model relates to the field of automatic battery assembly equipment technology, and in particular to a battery cell assembly soldering machine. It includes a worktable, a main feeding track with a groove horizontally arranged on the worktable, a transverse pushing mechanism located on one side of the main feeding track for positioning and translating battery casings, and an inclined material discharge channel located at the end of the main feeding track. On the other side of the main feeding track, along the feeding direction of the transverse pushing mechanism, are sequentially arranged a casing feeding mechanism, a battery cell assembly mechanism (A), a battery cell assembly mechanism (B1), a battery cell assembly mechanism (B2), a battery cell bending mechanism, a detection mechanism, and a soldering mechanism. A material separating mechanism is also provided between the detection mechanism and the soldering mechanism. The transverse pushing mechanism has a positioning slot. Through the above structural design, this utility model has the advantages of novel design, high degree of automation, high work efficiency, saving labor costs, and effectively ensuring product quality.
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Description

Technical Field

[0001] This utility model relates to the field of automatic battery assembly equipment technology, and in particular to a battery cell assembly soldering machine. Background Technology

[0002] Battery modules are conventional carrier components for electrical energy storage. With the continuous development and maturation of battery technology and the widespread application of electronic devices and new energy equipment in various fields, lithium battery packs have become a core component required for products used in daily life and production. Because electronic products and new energy products differ greatly in type, function, size, and operating environment, the assembly requirements for battery packs differ. A battery module typically consists of several cells, connectors, a Battery Management System (BMS), and a casing. During the battery assembly and production process, terminals need to be soldered onto the battery as pin terminals.

[0003] Traditional battery modules are assembled and welded manually, which is inefficient and makes it difficult to guarantee quality. With economic development, equipment is gradually replacing manual assembly. However, manual loading, positioning, starting, and unloading are still required during operation. This is usually semi-automated and is carried out by multiple machines, which increases the number of handling operations and handling time, prolongs the assembly cycle, and cannot meet the efficiency requirements of mass production. It requires a lot of manpower, and many links need to be adjusted manually. The degree of automation is low and it is difficult to meet the needs of modern production. Utility Model Content

[0004] The purpose of this utility model is to provide a battery cell assembly soldering machine that addresses the shortcomings of existing technologies. This battery cell assembly soldering machine has a novel design, a high degree of automation, high working efficiency, saves labor costs, and can effectively guarantee product quality.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a battery cell assembly soldering machine, comprising: a worktable, a feeding main track with a chute arranged horizontally on the worktable, a transverse pushing mechanism for positioning and translating battery casings on one side of the feeding main track, and an inclined material discharge channel at the end of the feeding main track, and a casing feeding mechanism, an A battery cell assembly mechanism, a B1 battery cell assembly mechanism, a B2 battery cell assembly mechanism, a battery cell bending mechanism, a detection mechanism, and a soldering mechanism arranged sequentially on the other side of the feeding main track along the feeding direction of the transverse pushing mechanism. A material separating mechanism is also provided between the detection mechanism and the soldering mechanism. The transverse pushing mechanism has a positioning slot that can separate each battery casing conveyed from the casing feeding mechanism at intervals for translation.

[0006] Furthermore, the transverse pushing mechanism includes a translational transfer component and a forward positioning component pushed by the translational transfer component. The forward end of the forward positioning component has a clamping plate with forward protrusions spaced apart on the clamping plate. A positioning groove is formed between two adjacent forward protrusions. The shape of the positioning groove is consistent with the shape of the battery casing. The forward positioning component drives the clamping plate to clamp the battery casing on the main feeding track, and the translational transfer component pushes the forward positioning component to move the battery casing along the slide to the set position.

[0007] Furthermore, the outer casing feeding mechanism includes an outer casing vibratory plate, the discharge end of the outer casing vibratory plate intersects with the main feeding track, a receiving frame is provided at the intersection of the discharge end of the outer casing vibratory plate and the main feeding track, and a push rod group is slidably inserted on one side of the receiving frame, which is driven by a first telescopic cylinder to push the battery casing in the receiving frame to the slide groove. The first telescopic cylinder is located on the main feeding track.

[0008] Furthermore, the A-cell assembly mechanism, B1-cell assembly mechanism, and B2-cell assembly mechanism have the same structure, all including a cell vibratory feeder, a direct vibrator connected to the discharge end of the cell vibratory feeder, a clamping and receiving assembly with the discharge end of the direct vibrator, and an assembly robot that grips the cells on the clamping and receiving assembly and assembles them onto the battery casing.

[0009] Furthermore, the clamping and receiving assembly includes a fine-tuning platform and a receiving block disposed on the fine-tuning platform and forming a guide groove along the direction of movement of the battery cell. The receiving block is provided with a threaded cylinder whose output end passes through one side wall of the receiving block and extends into the guide groove to press the battery cell during extension and retraction.

[0010] Furthermore, the battery cell bending mechanism includes a vertically arranged slide cylinder and a horizontal plate located at the output end of the slide cylinder. The bottom of the horizontal plate is provided with bending modules corresponding to the battery cells on the battery casing.

[0011] Furthermore, the detection mechanism includes a vertical telescopic cylinder mounted on the main feeding track and a proximity detection sensor located at the output end of the vertical telescopic cylinder, corresponding to the battery cells on the battery casing.

[0012] Furthermore, the soldering mechanism includes a longitudinal transverse movement assembly, a transverse movement slide cylinder disposed on the longitudinal transverse movement assembly, and a soldering head disposed on the transverse movement slide cylinder.

[0013] Furthermore, the material distribution mechanism includes a second telescopic cylinder located on the main feeding track and a baffle located at the output end of the second telescopic cylinder. A material drop chute is provided in the chute of the main feeding track. The baffle passes through the main feeding track and is inserted into the material drop chute to prevent the battery casing from falling. The upper surface of the baffle is flush with the bottom surface of the chute.

[0014] Furthermore, it also includes assembly positioning mechanisms on the main feeding track at corresponding positions of the A-cell assembly mechanism, B1-cell assembly mechanism, B2-cell assembly mechanism and soldering mechanism. The assembly positioning mechanism includes a third telescopic cylinder on the main feeding track and an L-shaped clamping plate at the output end of the third telescopic cylinder. The L-shaped clamping plate is provided with two baffles extending along the slide groove and spaced apart. An insert edge is provided between the two baffles to hold the battery casing between the two baffles and insert the insert edge into the battery casing to achieve positioning.

[0015] Compared with existing technologies, the advantages of this utility model are as follows: By setting a chute on the main feeding track and sequentially arranging the outer casing feeding mechanism, A-cell assembly mechanism, B1-cell assembly mechanism, B2-cell assembly mechanism, cell bending mechanism, detection mechanism, sorting mechanism, and soldering mechanism along the main feeding track, and pushing and positioning the detection and soldering mechanisms through a transverse pushing mechanism, the entire process is fully automated and can be completed on a single machine. Compared with the previous method of processing on multiple machines, this improves assembly efficiency, reduces handling procedures, saves manpower and resources, and requires less floor space. Simultaneously, the detection and sorting mechanisms automatically complete the inspection of product assembly and bending, allowing for the rejection of defective products and effectively reducing the outflow of defective goods. Through the above structural design, this utility model has the advantages of novel design, high degree of automation, high work efficiency, saving labor costs, and effectively ensuring product quality. Attached Figure Description

[0016] Figure 1 This is a top view of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model from one perspective;

[0018] Figure 3 This is a schematic diagram of the transverse pushing mechanism in this utility model;

[0019] Figure 4 This diagram shows the positional relationship of the material distribution mechanism, the material distribution mechanism, the assembly positioning mechanism, and the soldering mechanism on the main feeding track in this utility model.

[0020] Figure 5 This is a schematic diagram of the A-cell assembly mechanism in this utility model;

[0021] Figure 6 This is a schematic diagram of the battery cell bending mechanism in this utility model;

[0022] Figure 7 for Figure 4 Enlarged structural diagram at point C;

[0023] Figure 8 for Figure 4 Enlarged structural diagram at point A;

[0024] Figure 9 for Figure 4 A magnified structural diagram at point B in the middle. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] Please see Figure 1 and Figure 2 This embodiment provides a battery cell assembly soldering machine, including a worktable 1. A main feeding track 2 is horizontally arranged on the worktable 1. A chute 20 for guiding the movement of the battery casing is provided on the main feeding track 2. On one side of the main feeding track 2 and along the main feeding track 2, a casing feeding mechanism 3, an A-cell assembly mechanism 4, a B1-cell assembly mechanism 5, a B2-cell assembly mechanism 6, a battery cell bending mechanism 7, a detection mechanism 8, a sorting mechanism 9, and a soldering mechanism 10 are arranged sequentially. An assembly positioning mechanism 11 for fixing the battery casing onto the chute 20 is provided on the corresponding main feeding track 2 of the A-cell assembly mechanism 4, B1-cell assembly mechanism 5, B2-cell assembly mechanism 6, and soldering mechanism 10. On the other side of the main feeding track 2, a mechanism is provided to gradually move the battery casing conveyed by the casing feeding mechanism 3. The transverse pushing mechanism 12 connects to the A-cell assembly mechanism 4, B1-cell assembly mechanism 5, B2-cell assembly mechanism 6, cell bending mechanism 7, detection mechanism 8, material sorting mechanism 9, and soldering mechanism 10. A chute 20 is set on the main feeding track 2, and the outer casing feeding mechanism 3, A-cell assembly mechanism 4, B1-cell assembly mechanism 5, B2-cell assembly mechanism 6, cell bending mechanism 7, detection mechanism 8, material sorting mechanism 9, and soldering mechanism 10 are sequentially arranged along the main feeding track 2. The detection mechanism 8 and the soldering mechanism 10 are pushed and positioned by the transverse pushing mechanism 12. The entire process is fully automated and can be completed on a single machine. Compared to the previous method of processing on multiple machines separately, this improves assembly efficiency, reduces handling procedures, saves manpower and resources, and also reduces the floor space required.

[0027] In this embodiment, please refer to Figure 3The transverse pushing mechanism 12 includes a translation and transplanting component 120 and a forward positioning component 121 pushed by the translation and transplanting component 120. The translation and transplanting component 120 is provided with a bracket, and a set of transverse slide rails are provided on the bracket. The forward positioning component 121 is provided on the transverse slide rails, and a transverse pushing cylinder with its output end connected to the forward positioning component 121 is provided on the bracket. The forward positioning component 121 is pushed to move left and right along the transverse slide rails by the transverse pushing cylinder to realize the delivery of the battery casing.

[0028] The forward positioning component 121 is equipped with a slide plate that slides on a slide rail. The slide plate is provided with a set of longitudinally arranged longitudinal slide rails. A mounting plate slides on the longitudinal slide rails, and a forward cylinder connected to the mounting plate is provided on the slide plate. A clamping plate 1210 is provided on the mounting plate. A front protrusion 1211 is provided at intervals on the clamping plate 1210. A positioning groove 1212 is formed between two adjacent front protrusions 1211. The shape of the positioning groove 1212 is consistent with the shape of the battery casing. The positioning groove 1212 can separate each battery casing conveyed from the casing feeding mechanism 3 for translation. The forward positioning component 121 drives the clamping plate 1210 to clamp the battery casing on the feeding main track 2, and the translation and transfer component 120 pushes the forward positioning component 121 to move the battery casing along the slide 20 to the set position, thereby realizing the conveying of the battery casing and realizing the transfer of the battery casing one by one to the corresponding assembly mechanism for assembly.

[0029] In this embodiment, please refer to Figure 8 The outer casing feeding mechanism 3 includes an outer casing vibrating plate 30. The discharge end of the outer casing vibrating plate 30 intersects with the main feeding track 2. A receiving frame 31 is provided at the intersection of the discharge end of the outer casing vibrating plate 30 and the main feeding track 2. A push rod assembly 33 is slidably inserted on one side of the receiving frame 31. Driven by a first telescopic cylinder 32, the push rod assembly 33 pushes the battery casing in the receiving frame 31 into the slide groove 20. The first telescopic cylinder 32 is located on the main feeding track 2. The outer casing vibrating plate 30 transports the battery casing into the receiving frame 31. The main feeding track 2 located on one side of the receiving frame 31 is provided with a feed inlet communicating with the slide groove 20. The first telescopic cylinder 32 drives the push rod assembly 33, so that the push rod assembly 33 pushes the battery casing flowing into the receiving frame 31 into the slide groove 20. Then, the transverse pushing mechanism 12 transports the battery casing to the A battery cell assembly mechanism 4 for A battery cell assembly.

[0030] In this embodiment, the A-cell assembly mechanism 4, B1-cell assembly mechanism 5, and B2-cell assembly mechanism 6 have the same structure. The A-cell assembly mechanism 4 is mainly used to transport A-cells and assemble them onto the corresponding positions of the battery casing; the B1-cell assembly mechanism 5 is mainly used to transport B1-cells and install them onto the corresponding positions of the battery casing; the B2-cell assembly mechanism 6 is mainly used to transport B2-cells and install them onto the corresponding positions of the battery casing. Please refer to [link to previous document]. Figure 5 The battery cell assembly mechanisms A, B1, and B2 all include a battery cell vibratory feeder 40, a straight vibrator 41 connected to the discharge end of the battery cell vibratory feeder 40, a clamping and receiving assembly 42 with the discharge end of the straight vibrator 41, and an assembly robot 43 that grips the battery cells on the clamping and receiving assembly 42 and assembles them onto the battery casing. The battery cell vibratory feeder 40 transports the battery cells to the straight vibrator 41, which in turn transports them to the clamping and receiving assembly 42. The clamping and receiving assembly 42 fixes and positions the battery cells, and then the assembly robot 43 grips the battery cells on the clamping and receiving assembly 42 and assembles them onto the battery casing to achieve automatic battery cell assembly.

[0031] It should be noted that in this embodiment, the letters and numbers A, B1, and B2 on battery cells A, B1, and B2 have no other meaning and are mainly used to distinguish the battery cells. They can be distinguished by other letters or numbers, or by words such as first, second, or third. In this embodiment, they will not be described in detail.

[0032] Preferably, in this embodiment, the clamping and receiving assembly 42 includes a fine-tuning platform 420 and a receiving block 421 disposed on the fine-tuning platform 420 and forming a guide groove along the moving direction of the battery cell. The receiving block 421 is provided with a threaded cylinder 422 whose output end passes through one side wall of the receiving block 421 and extends into the guide groove to press the battery cell when it is extended or retracted. The threaded cylinder 422 presses the battery cell into the guide groove so that it can be grasped by the assembly robot 43. At the same time, the fine-tuning platform 420 can adjust the distance between the receiving block 421 and the vibrator 41, which can meet the conveying of battery cells of different sizes and has strong practicality.

[0033] In this embodiment, the battery cell bending mechanism 7 is mainly used to bend the battery cells to facilitate subsequent welding. Please refer to [link to relevant documentation]. Figure 6The battery cell bending mechanism 7 includes a vertically arranged slide cylinder 70 and a horizontal plate 71 located at the output end of the slide cylinder 70. A bending module 72 corresponding to the battery cell on the battery casing is located at the bottom of the horizontal plate 71. The slide cylinder 70 drives the horizontal plate 71 downwards, causing the bending module 72 to bend the battery cell assembled on the battery casing. To prevent products with incompletely bent battery cells from leaking out, resulting in wasted solder material, and to ensure assembly quality, a detection mechanism 8 is provided. This detection mechanism 8 includes a vertical telescopic cylinder located on the main feeding track 2 and a proximity detection sensor corresponding to the battery cell on the battery casing located at the output end of the vertical telescopic cylinder. The vertical telescopic cylinder is driven to approach the corresponding battery cell. When the proximity detection sensor moves downwards to a set distance, a detected battery cell indicates that the product is good. When the proximity detection sensor does not move to the set distance to detect a battery cell or moves to the set distance but does not detect a battery cell, the product is defective.

[0034] To prevent detected defective products from flowing to the soldering mechanism 10, a material distribution mechanism 9 is provided between the soldering mechanism 10 and the detection mechanism 8 in this embodiment. The material distribution mechanism 9 is mainly used to transport defective products out of the main feeding track 2. Please refer to [link to relevant documentation]. Figure 7 The material sorting mechanism 9 includes a second telescopic cylinder 90 mounted on the main feeding track 2 and a baffle 91 mounted on the output end of the second telescopic cylinder 90. A drop chute 21 is provided in the slide groove 20 of the main feeding track 2. The baffle 91 passes through the main feeding track 2 and is inserted into the drop chute 21 to prevent the battery casing from falling. The upper surface of the baffle 91 is flush with the bottom surface of the slide groove 20. When the defective products are inspected and flow to the baffle 91, the second telescopic cylinder 90 pulls the baffle 91 out of the drop chute 21, so that the defective products fall from the drop chute 21. This setting can transport the defective products out of the main feeding track 2, ensuring the assembly yield.

[0035] In this embodiment, please refer to Figure 4 The soldering mechanism 10 is mainly used to solder the battery cells. The soldering mechanism 10 includes a longitudinal transverse component 101, a transverse moving slide cylinder 102 on the longitudinal transverse component 101, and a welding head 103 on the transverse moving slide cylinder 102. The longitudinal transverse component 101 drives the welding head 103 to move above the main feeding track 2. Then, the lifting cylinder 104 on the longitudinal transverse component 101 drives the welding head 103 to move down closer to the battery cell. Then, the transverse moving slide cylinder 102 adjusts the position between the welding head 103 and the battery cell. The welding head 103 solders the battery cell. After the soldering is completed, the transverse pushing mechanism 12 transports the finished product to the inclined discharge channel. The product flows out from the inclined discharge channel.

[0036] To ensure that the A-cell assembly mechanism 4, B1-cell assembly mechanism 5, B2-cell assembly mechanism 6, and soldering mechanism 10 can effectively assemble the cells onto the battery casing and solder the tin onto the cells, preventing the battery casing from shifting during assembly, assembly positioning mechanisms 11 are installed on the main feeding tracks 2 at the corresponding positions of the A-cell assembly mechanism 4, B1-cell assembly mechanism 5, B2-cell assembly mechanism 6, and soldering mechanism 10. (See [link to relevant documentation]). Figure 9 The assembly positioning mechanism 11 includes a third telescopic cylinder 110 located on the main feeding track 2 and an L-shaped clamping plate 111 located at the output end of the third telescopic cylinder 110. The L-shaped clamping plate 111 is provided with two baffles 112 extending along the slide groove 20 and spaced apart. An inserting edge 113 is provided between the two baffles 112 to hold the battery casing between the two baffles 112 and insert the inserting edge 113 into the battery casing to achieve battery casing positioning and prevent the battery casing from moving when assembling battery cells.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A battery cell assembly soldering machine, comprising: The worktable is characterized by a feeding main track with a chute arranged horizontally on the worktable, a transverse pushing mechanism for positioning and translating battery casings on one side of the feeding main track, and an inclined dropping channel at the end of the feeding main track. On the other side of the feeding main track, a casing feeding mechanism, an A-cell assembly mechanism, a B1-cell assembly mechanism, a B2-cell assembly mechanism, a cell bending mechanism, a detection mechanism, and a soldering mechanism are arranged sequentially along the feeding direction of the transverse pushing mechanism. A material separating mechanism is also provided between the detection mechanism and the soldering mechanism. The transverse pushing mechanism has a positioning slot that can separate each battery casing conveyed from the casing feeding mechanism at intervals for translation.

2. The battery cell assembly soldering machine of claim 1, wherein, The transverse pushing mechanism includes a translation and transfer component and a forward positioning component pushed by the translation and transfer component. The forward end of the forward positioning component has a clamping plate with forward protrusions spaced apart on the clamping plate. A positioning groove is formed between two adjacent forward protrusions. The shape of the positioning groove is consistent with the shape of the battery casing. The forward positioning component drives the clamping plate to clamp the battery casing on the main feeding track, and the translation and transfer component pushes the forward positioning component to move the battery casing along the slide to the set position.

3. The battery cell assembly soldering machine of claim 1, wherein, The outer casing feeding mechanism includes an outer casing vibratory plate. The discharge end of the outer casing vibratory plate intersects with the main feeding track. A receiving frame is provided at the intersection of the discharge end of the outer casing vibratory plate and the main feeding track. A push rod assembly, driven by a first telescopic cylinder, slides through one side of the receiving frame to push the battery casing in the receiving frame into the slide groove. The first telescopic cylinder is located on the main feeding track.

4. The battery cell assembly soldering machine of claim 1, wherein, The A, B1, and B2 battery cell assembly mechanisms have the same structure, all including a battery cell vibratory feeder, a direct vibrator connected to the discharge end of the battery cell vibratory feeder, a clamping and receiving assembly with the discharge end of the direct vibrator, and an assembly robot that grips the battery cells on the clamping and receiving assembly and assembles them onto the battery casing.

5. The battery cell assembly soldering machine of claim 4, wherein, The clamping and receiving assembly includes a fine-tuning platform and a receiving block disposed on the fine-tuning platform and forming a guide groove along the direction of movement of the battery cell. The receiving block is provided with a threaded cylinder whose output end passes through one side wall of the receiving block and extends into the guide groove to press the battery cell during extension and retraction.

6. The battery cell assembly soldering machine of claim 1, wherein, The cell bending mechanism includes a vertically arranged slide cylinder and a horizontal plate located at the output end of the slide cylinder. The bottom of the horizontal plate is provided with bending modules corresponding to the cells on the battery casing.

7. The battery cell assembly soldering machine of claim 1, wherein, The detection mechanism includes a vertical telescopic cylinder located on the main feeding track and a proximity detection sensor located at the output end of the vertical telescopic cylinder, corresponding to the battery cells on the battery casing.

8. The battery cell assembly soldering machine of claim 1, wherein, The soldering mechanism includes a longitudinal transverse movement assembly, a transverse movement slide cylinder mounted on the longitudinal transverse movement assembly, and a soldering head mounted on the transverse movement slide cylinder.

9. The battery cell assembly soldering machine of claim 1, wherein, The material distribution mechanism includes a second telescopic cylinder located on the main feeding track and a baffle located at the output end of the second telescopic cylinder. A material drop chute is provided in the chute of the main feeding track. The baffle passes through the main feeding track and is inserted into the material drop chute to prevent the battery casing from falling. The upper surface of the baffle is flush with the bottom surface of the chute.

10. The battery cell assembly soldering machine of claim 1, wherein, It also includes assembly positioning mechanisms on the main feeding track at corresponding positions of the A-cell assembly mechanism, B1-cell assembly mechanism, B2-cell assembly mechanism and soldering mechanism. The assembly positioning mechanism includes a third telescopic cylinder on the main feeding track and an L-shaped clamping plate at the output end of the third telescopic cylinder. The L-shaped clamping plate is provided with two baffles that extend along the slide groove and are spaced apart. An insert edge is provided between the two baffles to hold the battery casing between the two baffles and insert the insert edge into the battery casing to achieve positioning.