Battery shell breaking and disassembling and tab cutting device

Abstract

The utility model relates to a battery shell breaking, disassembling and tab cutting device, which comprises a shell breaking mechanism, a tab cutting mechanism, a battery shell breaking mechanism and a tab cutting mechanism, and is characterized in that the shell breaking mechanism comprises a first positioning seat, a first limiting assembly, a second limiting assembly and a cutting assembly; the first limiting assembly is arranged to be close to the first positioning seat in the first direction and press the battery on the first positioning seat in the first direction. The second limiting assembly is arranged to be close to the first positioning seat from the second direction and press the battery on the first positioning seat from the second direction; the cutting assembly is arranged on one side of the first positioning seat and is used for cutting the surface of the battery on the first positioning seat; the tab cutting mechanism comprises a cutting assembly and a third limiting assembly; the cutting assembly is arranged to be close to the third limiting assembly from the first direction, and tightly presses and cuts the tab from the first direction; the third limiting assembly is arranged to be close to the cutting assembly from the second direction, and the third limiting assembly is used for positioning the battery cell after the shell of the battery is disassembled. The device can improve the repair efficiency of the battery and reduce the loss of the battery.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery shell breaking and disassembling and tab cutting device. Background Art

[0002] In the production of lithium batteries, the manufacture of battery cells is a key step. The aluminum shell serves as a protective barrier, and ultrasonic welding and fiber optic welding are two important processes. Ultrasonic welding is the cold welding process that connects the tab to the cover plate, while fiber optic welding welds the cover plate to the shell.

[0003] In the existing new energy lithium battery industry, battery cells are primarily manufactured using aluminum casings for protection and assembled using ultrasonic and fiber optic welding processes. When a battery fails, it often requires repair, which involves disassembling the aluminum casing and cover and reassembling them. This repair work is typically performed manually or with the assistance of simple equipment.

[0004] However, existing rework methods present numerous problems. First, manually disassembling the aluminum casing can injure the operator and potentially damage the electrode assembly, rendering the battery useless. Second, the disassembly process can produce burrs that can pierce the interior of the electrode assembly, causing a short circuit. Furthermore, uneven cut surfaces can lead to subsequent resoldering issues, such as the flexible connector not covering the electrode tab. These issues all increase battery wear. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model discloses a battery shell breaking and disassembling and tab cutting device.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A battery shell breaking, disassembling and tab cutting device, comprising:

[0008] The shell breaking mechanism includes a first positioning seat, a first limiting assembly, a second limiting assembly, and a cutting assembly; the first limiting assembly is configured to approach the first positioning seat from a first direction and press the battery on the first positioning seat from the first direction; the second limiting assembly is configured to approach the first positioning seat from a second direction and press the battery on the first positioning seat from the second direction; the cutting assembly is provided on one side of the first positioning seat and is configured to cut the surface of the battery on the first positioning seat;

[0009] The tab cutting mechanism includes a cutting component and a third limiting component; the cutting component is configured to approach the third limiting component from a first direction, and press and cut the tab from the first direction; the third limiting component is configured to approach the cutting component from a second direction, and the third limiting component is used to position the battery cell after the battery shell is removed.

[0010] In one embodiment of the present invention, the first limiting assembly includes a first mounting seat, a first cylinder provided on the first mounting seat, and a first pressure plate connected to an active end of the first cylinder.

[0011] In one embodiment of the present invention, the second limiting assembly includes a second cylinder and a first positioning block connected to an active end of the second cylinder.

[0012] In one embodiment of the present invention, the cutting assembly includes a first linear module, a second mounting seat mounted on a movable portion of the first linear module, at least one tool holder fixed to the second mounting seat, and a hob provided on the tool holder.

[0013] In one embodiment of the present invention, a first dust suction port is provided between the first positioning seat and the cutting assembly.

[0014] In one embodiment of the present invention, the cutting assembly includes a third mounting seat, a third cylinder arranged on the third mounting seat, a second pressure plate connected to the active end of the third cylinder, an elastic pressure rod fixed to the second pressure plate, and a cutter fixed to the second pressure plate.

[0015] In one embodiment of the present invention, the third limiting assembly includes a fourth cylinder, a second positioning seat connected to the active end of the fourth cylinder, a second positioning block provided on one side of the second positioning seat, and a fifth cylinder connected to the second positioning block.

[0016] In one embodiment of the present invention, a second dust suction port is provided at the bottom of the third limiting assembly.

[0017] In one embodiment of the present invention, a dust collecting mechanism is further included; the dust collecting mechanism is connected to the shell breaking mechanism and the tab cutting mechanism respectively to collect dust generated by the shell breaking mechanism and the tab cutting mechanism.

[0018] In one embodiment of the present invention, a disassembly station is further included; the disassembly station is provided with a dust baffle.

[0019] The above technical solution of the utility model has the following advantages compared with the prior art:

[0020] The battery shell breaking, disassembling and tab cutting device of the utility model avoids injuries to the operator caused by manual direct disassembly of the aluminum shell and bumps and damages to the tab group, thereby reducing the scrap rate of the battery.

[0021] The battery shell breaking and disassembling and tab cutting device of the utility model avoids the generation of burrs during the disassembly process, thereby preventing the burrs from piercing the interior of the electrode group and causing a short circuit.

[0022] The battery shell breaking and disassembling and tab cutting device of the utility model ensures the flatness of the cutting surface, thereby avoiding subsequent re-soldering problems, such as the flexible connection not covering the tab.

[0023] The battery shell breaking, disassembling and tab cutting device of the utility model can effectively collect and process the debris generated during the entire disassembling and cutting process, thereby reducing environmental pollution and other technical problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0025] Figure 1 It is a structural schematic diagram of the battery shell breaking and disassembling and tab cutting device in the utility model.

[0026] Figure 2 It is a structural schematic diagram of the shell breaking mechanism in the utility model from the first perspective.

[0027] Figure 3 It is a structural schematic diagram of the shell breaking mechanism in the utility model from a second perspective.

[0028] Figure 4 It is a structural diagram of the cutting component in the utility model.

[0029] Figure 5 It is a structural schematic diagram of the tab cutting mechanism in the utility model from a first perspective.

[0030] Figure 6 It is a structural schematic diagram of the tab cutting mechanism in the utility model from a second perspective.

[0031] Figure 7 It is a structural diagram of the cutting component in the utility model.

[0032] Figure 8 It is a structural diagram of the second positioning component in the utility model.

[0033] Description of the accompanying drawings:

[0034] 10. Shell breaking mechanism; 101. First cylinder; 102. First pressure plate; 103. First mounting seat; 104. Second cylinder; 105. First positioning block; 106. First positioning seat; 107. First base; 108. Second mounting seat; 109. First linear module; 110. First tool holder; 111. Second tool holder; 112. Hob; 113. First dust suction port;

[0035] 20. Disassembly station;

[0036] 30. Tab cutting mechanism; 301. Third cylinder; 302. Third mounting seat; 303. Second pressing plate; 304. Second positioning seat; 305. Fourth cylinder; 306. Elastic pressure bar; 307. Limit block; 308. Second base; 309. Second positioning block; 310. Cutter; 311. Fifth cylinder; 312. Second suction port;

[0037] 40. Dust collection mechanism. DETAILED DESCRIPTION

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0039] The aforementioned and other technical aspects, features, and functions of the present invention will be more clearly demonstrated in the following detailed description of the embodiments with reference to the accompanying drawings. Directional terms such as up, down, left, right, front, and back, used in the following embodiments, are merely references to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes only and are not intended to limit the present invention. Furthermore, throughout the embodiments, identical reference numerals denote identical components.

[0040] Combine Figure 1 and Figure 2 , a battery shell breaking and disassembling and tab cutting device, comprising:

[0041] The shell breaking mechanism 10 includes a first positioning seat 106, a first limiting assembly, a second limiting assembly, and a cutting assembly; the first limiting assembly is configured to approach the first positioning seat 106 from a first direction and press the battery on the first positioning seat 106 from the first direction; the second limiting assembly is configured to approach the first positioning seat 106 from a second direction and press the battery on the first positioning seat 106 from the second direction; the cutting assembly is provided on one side of the first positioning seat 106 and is configured to cut the surface of the battery on the first positioning seat 106;

[0042] The tab cutting mechanism 30 includes a cutting assembly and a third limiting assembly; the cutting assembly is configured to approach the third limiting assembly from a first direction, and to press and cut the tab from the first direction; the third limiting assembly is configured to approach the cutting assembly from a second direction, and the third limiting assembly is used to position the battery cell after the battery shell is removed.

[0043] This embodiment provides a battery shell disassembly and tab cutting device that effectively addresses issues associated with existing manual repair methods, such as operator injury, bumps and bruises on the electrode assembly, and short circuits caused by burrs, thereby improving battery safety and reliability. Furthermore, it improves battery repair efficiency and reduces battery wear, thereby increasing battery production efficiency and reducing production costs.

[0044] In this embodiment, combined with Figures 2 to 4 The shell breaking mechanism 10 further includes a first base 107 . The first positioning seat 106 , the first limiting assembly and the cutting assembly are all fixed to the first base 107 .

[0045] The first limiting assembly includes a first mounting seat 103 , a first cylinder 101 disposed on the first mounting seat 103 , and a first pressing plate 102 connected to an active end of the first cylinder 101 .

[0046] The second position-limiting assembly includes a second cylinder 104 and a first positioning block 105 connected to the active end of the second cylinder 104. Specifically, the first mounting base 103 is provided with a fixing plate, to which the mounting portion of the second cylinder 104 is fixed. It is understood that the second position-limiting assembly is not directly fixed to the first base 107.

[0047] like Figure 4 As shown, the cutting assembly includes a first linear module 109, a second mounting seat 108 mounted on the movable portion of the first linear module 109, at least one blade holder fixed to the second mounting seat 108, and a rolling cutter 112 disposed on the blade holder. Specifically, in this embodiment, a first blade holder 110 and a second blade holder 111 are disposed on the second mounting seat 108. The first blade holder 110 and the second blade holder 111 are disposed opposite each other, and the positions of the first blade holder 110 and the second blade holder 111 in the second direction are adjustable. The first blade holder 110 and the second blade holder 111 are each mounted with a rolling cutter 112. The rolling cutter 112 in the first blade holder 110 cuts the upper surface of the battery, while the rolling cutter 112 in the second blade holder 111 cuts the lower surface of the battery.

[0048] Furthermore, a first dust suction port 113 is provided between the first positioning seat 106 and the cutting assembly.

[0049] In this embodiment, the battery shell breaking, disassembling and tab cutting device further includes a disassembling station 20. The disassembling station 20 is provided with a dust baffle.

[0050] In this embodiment, combined with Figures 5 to 8 The tab cutting mechanism 30 further includes a second base 308 . The cutting assembly and the third limiting assembly are mounted on the second base 308 .

[0051] The cutting assembly includes a third mounting base 302, a third cylinder 301 disposed on the third mounting base 302, a second pressing plate 303 connected to the active end of the third cylinder 301, an elastic pressure rod 306 fixed to the second pressing plate 303, and a cutter 310 fixed to the second pressing plate 303. Generally speaking, if a battery has a positive tab and a negative tab, at least two elastic pressure rods 306 and at least two cutters 310 are designed. The cutter 310 has a blade length of 100 mm, a blade width of 5 mm, and a blade angle of 30°, which can prevent burrs from forming during the disassembly process and prevent burrs from piercing the interior of the electrode assembly and causing a short circuit.

[0052] Furthermore, a first sliding assembly is provided on the inner sidewall of the third mounting base 302. The first sliding assembly includes a first guide rail fixed to the inner sidewall of the third mounting base 302 and a first slider sliding along the first guide rail. The first slider is fixedly connected to the second pressing plate 303. The first guide rail is provided along a first direction.

[0053] The third limiting assembly includes a fourth cylinder 305, a second positioning seat 304 connected to the active end of the fourth cylinder 305, a second positioning block 309 provided on one side of the second positioning seat 304, and a fifth cylinder 311 connected to the second positioning block 309. The second positioning block 309 is used to position the top cover and the tab of the battery so that the cutter 310, when it is lowered by the action of the third cylinder 301, can directly cut the tab, thereby separating the tab from the battery cell.

[0054] Furthermore, a group of limiting blocks 307 are provided on the second positioning seat 304, and the group of limiting blocks 307 respectively position the two side surfaces of the battery cell.

[0055] Furthermore, a second sliding assembly is provided on the second base 308. The second sliding assembly includes a second guide rail fixed on the second base 308 and a second slider sliding along the second guide rail, and the second slider is fixedly connected to the second positioning seat 304. The second guide rail is provided along the second direction.

[0056] Furthermore, a second dust suction port 312 is provided at the bottom of the third limiting assembly.

[0057] In this embodiment, the battery shell breaking, disassembly, and tab cutting device further includes a dust collection mechanism 40. The dust collection mechanism 40 is connected to the shell breaking mechanism 10 and the tab cutting mechanism 30, respectively, to collect dust generated by the shell breaking mechanism 10 and the tab cutting mechanism 30. Specifically, the dust collection mechanism 40 is connected to the first dust suction port 113 and the second dust suction port 312 via pipes, thereby absorbing dust generated during the operation, which is beneficial to the environment. The dust collection mechanism 40 consists of a 500W vacuum cleaner and a 50L dust bag.

[0058] It should be noted that, in this embodiment, the first direction refers to the vertical direction, and the second direction refers to the horizontal direction.

[0059] The working principle of this utility model is as follows:

[0060] S1. The operator places the battery to be cracked on the first positioning seat 106. The first cylinder 101 pushes the first pressing plate 102 close to the surface of the battery. The second cylinder 104 pushes the first positioning block 105 close to the side of the battery. The battery is positioned using the first pressing plate 102 and the first positioning block 105.

[0061] S2. Adjust the distance between the first blade holder 110 and / or the second blade holder 111 and the battery surface, start the first linear module 109, and the first linear module 109 drives the second mounting seat 108 to move horizontally in the second direction, so that the roller 112 reciprocates in the second direction to cut and damage the surface of the battery.

[0062] S3. The damaged battery is moved to the disassembly station 20, and an operator manually removes the battery casing.

[0063] S4. Move the battery, with its casing removed, to the tab cutting mechanism 30. At this point, the battery is without its casing, exposing the battery cell. The battery cell is placed on the second positioning seat 304. The fourth cylinder 305 pushes the second positioning seat 304 toward the cutting assembly. The top cover is placed within the second positioning block 309. The fifth cylinder 311 pushes the second positioning block 309 toward the battery cell. The fourth cylinder 305 pushes the second pressure plate 303 toward the second positioning block 309, and the cutter 310 cuts the tab.

[0064] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0065] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A battery shell breaking and disassembling and tab cutting device, characterized in that: include: A shell breaking mechanism (10) comprises a first positioning seat (106), a first limiting assembly, a second limiting assembly and a cutting assembly; the first limiting assembly is configured to approach the first positioning seat (106) from a first direction and press the battery on the first positioning seat (106) from the first direction; the second limiting assembly is configured to approach the first positioning seat (106) from a second direction and press the battery on the first positioning seat (106) from the second direction; the cutting assembly is provided on one side of the first positioning seat (106) and is configured to cut the surface of the battery on the first positioning seat (106); The tab cutting mechanism (30) comprises a cutting assembly and a third limiting assembly; the cutting assembly is arranged to approach the third limiting assembly from a first direction, and to press and cut the tab from the first direction; the third limiting assembly is arranged to approach the cutting assembly from a second direction, and the third limiting assembly is used to position the battery cell after the battery shell is removed.

2. The battery shell breaking, disassembling and tab cutting device according to claim 1, characterized in that: The first limiting assembly comprises a first mounting seat (103), a first cylinder (101) provided on the first mounting seat (103), and a first pressing plate (102) connected to the action end of the first cylinder (101).

3. The battery shell breaking, disassembling and tab cutting device according to claim 1, characterized in that: The second limiting assembly comprises a second cylinder (104) and a first positioning block (105) connected to the active end of the second cylinder (104).

4. The battery shell breaking, disassembling and tab cutting device according to claim 1, characterized in that: The cutting assembly comprises a first linear module (109), a second mounting seat (108) mounted on a movable portion of the first linear module (109), at least one knife seat fixed to the second mounting seat (108), and a hob (112) provided on the knife seat.

5. The battery shell breaking, disassembling and tab cutting device according to claim 1, characterized in that: A first dust suction port (113) is provided between the first positioning seat (106) and the cutting assembly.

6. The battery shell breaking, disassembling and tab cutting device according to claim 1, characterized in that: The cutting assembly comprises a third mounting seat (302), a third cylinder (301) provided on the third mounting seat (302), a second pressing plate (303) connected to the action end of the third cylinder (301), an elastic pressing rod (306) fixed to the second pressing plate (303), and a cutting knife (310) fixed to the second pressing plate (303).

7. The battery shell breaking, disassembling and tab cutting device according to claim 1, characterized in that: The third limiting assembly comprises a fourth cylinder (305), a second positioning seat (304) connected to the action end of the fourth cylinder (305), a second positioning block (309) provided on one side of the second positioning seat (304), and a fifth cylinder (311) connected to the second positioning block (309).

8. The battery shell breaking, disassembling and tab cutting device according to claim 1, characterized in that: A second dust suction port (312) is provided at the bottom of the third limiting assembly.

9. The battery shell breaking, disassembling and tab cutting device according to claim 1, characterized in that: It also includes a dust collecting mechanism (40); the dust collecting mechanism (40) is connected to the shell breaking mechanism (10) and the tab cutting mechanism (30) respectively, and collects dust generated by the shell breaking mechanism (10) and the tab cutting mechanism (30).

10. The battery shell breaking, disassembling and tab cutting device according to claim 1, characterized in that: It also includes a disassembly station (20); the disassembly station (20) is provided with a dust baffle.

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