Battery cell tab cutting and clamping device and battery cell tab processing system

Abstract

The utility model discloses a cell tab cutting and clamping device and a cell tab processing system. The cell tab cutting and clamping device comprises a cutting and clamping table, a clamping mechanism, a transfer servo mechanism and a shearing mechanism, the clamping mechanism and the shearing mechanism are arranged on the cutting and clamping table, and the transfer servo mechanism is connected to the clamping mechanism on the cutting and clamping table; the clamping mechanism is a special-shaped clamping jaw and is used for clamping and pushing a power cell tab, the cutting clamping table comprises an upper supporting plate and a lower supporting plate, an operation plate is installed on the lower supporting plate, a clamping jaw receding groove is formed in the operation plate, and the special-shaped clamping jaw is installed in the clamping jaw receding groove and can move in the clamping jaw receding groove. The shearing mechanism comprises an upper pole lug cutter and a lower pole lug cutter, the upper pole lug cutter is mounted above the clamping jaw clearance groove, and the lower pole lug cutter is mounted on one side of the clamping jaw clearance groove. The utility model solves the problem that the arc-shaped short tab is not easy to clamp, so that the cutting is skew, and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cell tab production, and in particular to a battery cell tab cutting and clamping device and a battery cell tab processing system. Background Art

[0002] The rapid development of new energy requires lithium batteries to be increasingly miniaturized. The production process of lithium battery cells is mainly stacked and wound. In the production process of lithium battery cells, as the cells are miniaturized, the ears, which are the positive and negative poles of the battery and the contact points during charging and discharging, also need to adapt to the narrow and short body of the battery cell. How to stably clamp during welding and cutting has become a technical problem that technicians in this field need to solve urgently.

[0003] In the prior art, a Chinese patent with application number 201120074431.4 discloses a lithium battery cell tab cutting device for a multi-layer lithium-ion battery, including a cylinder as a cutting drive device, an upper cutter rack connected to the cylinder, an upper cutter arranged on the upper cutter rack, a lower cutter arranged corresponding to the upper cutter, and a cell fixture for clamping the battery cell, wherein the cell fixture includes a tab front pressing block, a tab rear pressing block, and a pressing block control rod for controlling the lifting and lowering of the tab front and rear pressing blocks. After the battery cell is installed on the cell fixture, the pressing block control rod needs to be used to flatten the tab, and the cylinder is used to drive the upper cutter to press down and cooperate with the lower cutter to cut the tab. In the operation of the lithium battery cell tab cutting device disclosed in the patent, it is necessary to first operate the pressing block control rod to complete the tab flattening, and then use the upper and lower cutters to cut the tab. After the cutting is completed, the pressing block control rod needs to be operated again to release the tab, so the operation steps are cumbersome and the structure is complicated. Moreover, as battery cells are gradually miniaturized, the tabs of small cells are more difficult to clamp than those of large cells. During the welding and cutting process, the tabs cannot be clamped firmly or tightly, which may cause a series of problems such as skewed tabs, deformed arc shapes, and poor welding spacing. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a cell tab cutting and clamping device and a cell tab processing system, which uses a tab upper cutter and a tab lower cutter in combination with a special-shaped clamping jaw, and arc-shaped through grooves are respectively opened on both sides of the tab upper cutter, and then the tab is clamped with the special-shaped clamping jaw, and finally cut. In the process of welding and cutting the tab, the tab can be tightened to avoid the tab from being skewed, thereby ensuring the accuracy of welding and cutting, and meeting the use requirements to a great extent.

[0005] In order to achieve the above-mentioned purpose, in a first aspect, the utility model provides a battery cell tab cutting and clamping device, which specifically comprises:

[0006] A cutting and clamping table, a clamping mechanism, a transfer servo mechanism and a shearing mechanism; the clamping mechanism and the shearing mechanism are arranged on the cutting and clamping table, and the transfer servo mechanism is connected to the clamping mechanism on the cutting and clamping table;

[0007] The clamping mechanism is a special-shaped clamping claw used to clamp and push the battery cell tabs. The cutting and clamping table includes an upper support plate and a lower support plate. An operating panel is installed on the lower support plate. A clamping claw avoidance groove is provided on the operating panel. The special-shaped clamping claw is installed in the clamping claw avoidance groove and can move in the clamping claw avoidance groove. The shearing mechanism includes an upper tab tool and a lower tab tool. The upper tab tool is installed above the clamping claw avoidance groove, and the lower tab tool is installed on one side of the clamping claw avoidance groove.

[0008] As a further technical solution, the transfer servo mechanism includes a transfer track and a transfer bracket. The transfer bracket can move on the transfer track to transfer the battery cell tabs to the clamping mechanism.

[0009] As a further technical solution, the upper support plate and the lower support plate are connected via two guide columns.

[0010] As a further technical solution, the upper support plate and the lower support plate have the same length, a first mounting groove is opened at the left and right ends of the upper support plate, and a second mounting groove is opened at the left and right ends of the lower support plate and aligned with the first mounting groove, and the two ends of the two guide columns are respectively embedded in the first mounting groove and the second mounting groove.

[0011] As a further technical solution, a shell is installed on the operating panel, a square groove is opened on the shell, and the tool on the pole ear is slidably arranged in the square groove.

[0012] As a further technical solution, the housing is type structure, with its opening direction facing the transfer servo mechanism.

[0013] As a further technical solution, first threaded holes are provided on the left and right sides of the upper end surface of the shell, and bolts are provided in conjunction with the first threaded openings, and the shell is connected to the upper support plate through the bolts.

[0014] As a further technical solution, arc-shaped through grooves are respectively opened on both sides of the tool on the pole ear, which is a double-sided arc-shaped tool.

[0015] In a second aspect, the utility model provides a battery cell tab processing system, comprising a battery cell tab cutting and clamping device and a battery cell tab processing module provided in the first aspect.

[0016] As a further technical solution, the battery cell tab cutting and clamping device is installed behind the battery cell tab processing module, and is used to cut the processed battery cell tabs.

[0017] One or more technical solutions of the utility model have the following beneficial effects:

[0018] (1) The utility model uses an upper tab cutter and a lower tab cutter in combination with a special-shaped clamping claw, and arc-shaped through grooves are respectively opened on both sides of the upper tab cutter, and then the tab is clamped with a special-shaped clamping claw, and finally cut. In the process of welding and cutting the tab, the tab can be tightened, avoiding the occurrence of skewed tabs and poor welding spacing, on the one hand, ensuring that the tab of the battery cell is not deformed, and on the other hand, ensuring the accuracy of welding and cutting, which meets the use requirements to a great extent.

[0019] (2) The utility model has a clamping jaw avoidance groove on the operating panel, and the special-shaped clamping jaw is installed in the clamping jaw avoidance groove, and the transfer servo mechanism is connected to the clamping mechanism on the cutting and clamping table, which ensures that the special-shaped clamping jaw can easily clamp the battery cell tabs and can firmly clamp the battery cell tabs during the welding and cutting process, thereby solving the problem of skewed cutting caused by the difficulty in clamping the arc-shaped short tabs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0021] Figure 1 This is a main schematic diagram of the structure of the battery cell tab cutting and clamping device provided by the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the battery cell tab cutting and clamping device provided by the utility model;

[0023] Among them, 1. special-shaped clamping jaws; 2. transfer servo mechanism; 3. clamping jaws avoiding groove; 4. lower tab cutting tool; 5. upper tab cutting tool; 6. battery tab; 7. upper support plate; 8. lower support plate; 9. operating panel; 10. guide column; 11. shell. DETAILED DESCRIPTION

[0024] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0025] First, as Figure 1As shown, the utility model provides a battery cell tab cutting and clamping device, comprising: a cutting and clamping table, a clamping mechanism, a transfer servo mechanism 2 and a shearing mechanism; wherein the clamping mechanism and the shearing mechanism are arranged on the cutting and clamping table, and the transfer servo mechanism 2 is connected to the clamping mechanism on the cutting and clamping table.

[0026] like Figure 1 As shown, the clamping mechanism is a special-shaped clamping claw 1, which is used to clamp and push the battery cell tab 6. The cutting and clamping table includes an upper support plate 7 and a lower support plate 8. An operating panel 9 is installed on the lower support plate 8. A clamping claw avoidance groove 3 is provided on the operating panel 9. The special-shaped clamping claw 1 is installed in the clamping claw avoidance groove and can move in the clamping claw avoidance groove 3. The shearing mechanism includes an upper tab cutter 5 and a lower tab cutter 4. The upper tab cutter 5 is installed above the clamping claw avoidance groove 3, and the lower tab cutter 4 is installed on one side of the clamping claw avoidance groove 3. The battery cell tab is clamped by the upper tab cutter and the lower tab cutter and the upper special-shaped clamping claw, and finally cut and welded. In the process of welding and cutting the battery cell tab, the battery cell tab can be tightened, avoiding the occurrence of battery cell tab skewness and poor welding spacing. On the one hand, the battery cell tab is guaranteed not to be deformed, and on the other hand, the accuracy of welding and cutting is guaranteed, which meets the use requirements to a great extent.

[0027] In this embodiment, if Figure 1 As shown, the transfer servo mechanism 2 includes a transfer track and a transfer bracket, wherein the transfer bracket can move on the transfer track to transfer the battery cell tab 2 to the clamping mechanism to facilitate the special-shaped clamping claw 1 to clamp the battery cell tab 2.

[0028] like Figure 1 As shown, the upper support plate 7 and the lower support plate 8 are connected by two guide columns 10. Specifically, the upper support plate 7 and the lower support plate 8 have the same length, and the upper support plate 7 is provided with a first mounting groove at both ends, and the lower support plate 8 is provided with a second mounting groove at both ends and aligned with the first mounting groove. The two ends of the two guide columns 10 are respectively embedded in the first mounting groove and the second mounting groove, so that the structure of the cutting and clamping table is more stable.

[0029] In this embodiment, if Figure 2 As shown, a housing 11 is mounted on the operating panel 9, wherein a square groove is provided on the housing 11, and the tool 5 on the tab is slidably arranged in the square groove, and the housing 11 is The housing 11 has a structure with an opening facing the transfer servo mechanism 2. The housing 11 has first threaded holes on both sides of its upper end surface. Bolts are provided to match the first threaded holes. The housing is connected to the upper support plate by bolts. Figure 2 As shown, arc-shaped through grooves are respectively provided on both sides of the tool 5 on the tab, and it is a double-sided arc-shaped tool, which is convenient for cutting the arc-shaped short battery cell tabs.

[0030] The working principle of the cell tab cutting and clamping device is as follows:

[0031] The battery cell tabs to be cut are placed on a transfer bracket, which runs on a transfer track and transports the battery cell tabs to be cut to a clamping mechanism, where the special-shaped clamps move in the clamp avoidance grooves and stably clamp the battery cell tabs to be cut, and pass through the cutting and clamping table. During the process, the upper tab tool and the lower tab tool cut the battery cell tabs to be cut.

[0032] In the second aspect, the utility model further provides a battery cell tab processing system, comprising the battery cell tab cutting and clamping device and the battery cell tab processing module mentioned in the first aspect, wherein the battery cell tab cutting and clamping device is installed behind the battery cell tab processing module, and is used to cut the processed battery cell tab. The battery cell tab processing system and the above-mentioned battery cell tab cutting and clamping device have the same technical solutions and beneficial effects, which will not be described in detail here.

[0033] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery cell tab cutting and clamping device, characterized in that: include: A cutting and clamping table, a clamping mechanism, a transfer servo mechanism and a shearing mechanism; the clamping mechanism and the shearing mechanism are arranged on the cutting and clamping table, and the transfer servo mechanism is connected to the clamping mechanism on the cutting and clamping table; The clamping mechanism is a special-shaped clamping claw used to clamp and push the battery cell tabs. The cutting and clamping table includes an upper support plate and a lower support plate. An operating panel is installed on the lower support plate. A clamping claw avoidance groove is provided on the operating panel. The special-shaped clamping claw is installed in the clamping claw avoidance groove and can move in the clamping claw avoidance groove. The shearing mechanism includes an upper tab tool and a lower tab tool. The upper tab tool is installed above the clamping claw avoidance groove, and the lower tab tool is installed on one side of the clamping claw avoidance groove.

2. A battery cell tab cutting and clamping device as claimed in claim 1, characterized in that: The transfer servo mechanism comprises a transfer track and a transfer bracket. The transfer bracket can move on the transfer track and is used for transferring the battery cell tabs to the clamping mechanism.

3. A battery cell tab cutting and clamping device as claimed in claim 1, characterized in that: The upper support plate and the lower support plate are connected via two guide columns.

4. A battery cell tab cutting and clamping device as claimed in claim 3, characterized in that: The upper support plate and the lower support plate have the same length, a first mounting groove is opened at the left and right ends of the upper support plate, and a second mounting groove is opened at the left and right ends of the lower support plate and aligned with the first mounting groove, and the two ends of the two guide columns are respectively embedded in the first mounting groove and the second mounting groove.

5. The battery cell tab cutting and clamping device according to claim 1, characterized in that: A shell is installed on the operation panel, a square groove is provided on the shell, and the tool on the pole ear is slidably arranged in the square groove.

6. A battery cell tab cutting and clamping device as claimed in claim 5, characterized in that: The housing is type structure, with its opening direction facing the transfer servo mechanism.

7. A battery cell tab cutting and clamping device as claimed in claim 5, characterized in that: The left and right sides of the upper end surface of the shell are provided with first threaded holes, and bolts are provided in conjunction with the first threaded openings, and the shell is connected to the upper support plate through the bolts.

8. The battery cell tab cutting and clamping device according to claim 1, characterized in that: Arc-shaped through grooves are respectively provided on both sides of the tool on the pole ear, so that the tool is a double-sided arc-shaped tool.

9. A battery cell tab processing system, characterized in that: It comprises a battery cell tab cutting and clamping device and a battery cell tab processing module as described in any one of claims 1 to 8.

10. A battery cell tab processing system as claimed in claim 9, characterized in that: The battery cell tab cutting and clamping device is installed behind the battery cell tab processing module and is used to cut the processed battery cell tabs.

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