Battery cell clamping hand

Abstract

The utility model discloses a battery cell clamping hand, and belongs to the technical field of battery processing. The battery cell clamping hand comprises an upper fixing table, a lower fixing table, two upper clamping cutters, two lower clamping cutters, an upper buffer plate and a lower buffer plate, the upper fixing table is installed on a driving mechanism, the two upper clamping cutters are installed on the upper fixing table, the upper buffer plate is installed on the upper clamping cutters, the two upper clamping cutters are arranged at a preset interval, the length of the upper buffer plate is connected with the two upper clamping cutters, and the length of the lower buffer plate is connected with the length of the lower clamping cutters. The lower fixing table is installed on the driving mechanism, the two lower clamping cutters are installed on the lower fixing table, the lower buffer plate is installed on the lower clamping cutters, the two lower clamping cutters are arranged at a preset interval, the length of the lower buffer plate is connected with the two lower clamping cutters, and the upper buffer plate and the lower buffer plate are arranged between the upper clamping cutter and the lower clamping cutter. The utility model solves the problems that the contact area between the clamping jaw and the battery cell is small, the local pressure intensity of the battery cell surface appearance diaphragm is too large, and the battery cell surface appearance diaphragm is directly extruded and damaged by the clamping jaw in the prior art.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery processing, and specifically relates to a cell gripper. Background Art

[0002] Most of the existing jaws have a small width, and the usage methods are mostly as shown in the attached description of the Chinese invention patent with publication number: CN 113815001 A, publication date: December 21, 2021, and invention title: An infinitely variable pitch jaw for soft-pack cells. Figure 1 As shown, the jaws are used to clamp both ends of the cell, and this structure has the problem that it is difficult to clamp and position due to the small thickness of both the jaws and the cell.

[0003] If the above-mentioned jaws are used to clamp the surface of the cell with a large area, because the width of the jaws is small, there is a problem that the local pressure on the surface diaphragm of the cell is too large, resulting in the surface diaphragm of the cell being easily directly squeezed and damaged by the jaws. Content of the Utility Model

[0004] Purpose of the utility model: Provide a cell gripper, by setting buffer plates with a large area on the upper clamping knife and the lower clamping knife, and using the buffer plates to contact the cell, it solves the problem that the contact area between the existing jaw and the cell is small, and it is easy to cause the local pressure on the surface diaphragm of the cell to be too large, resulting in the surface diaphragm of the cell being directly squeezed and damaged by the jaw.

[0005] The technical solution of the utility model is as follows: The cell gripper includes: an upper fixing table, a lower fixing table, two upper clamping knives, two lower clamping knives, an upper buffer plate and a lower buffer plate.

[0006] The upper fixing table is installed on the driving mechanism, the two upper clamping knives are installed on the upper fixing table, the upper buffer plate is installed on the upper clamping knife, the two upper clamping knives are arranged at a predetermined interval, and the length of the upper buffer plate connects the two upper clamping knives.

[0007] The lower fixing table is installed on the driving mechanism, the two lower clamping knives are installed on the lower fixing table, the lower buffer plate is installed on the lower clamping knife, the two lower clamping knives are arranged at a predetermined interval, and the length of the lower buffer plate connects the two lower clamping knives.

[0008] The upper buffer plate and the lower buffer plate are arranged between the upper clamping knife and the lower clamping knife.

[0009] In a further embodiment, the ratio of the length of the buffer plate to the length of the cell surface is greater than 0.3:1.

[0010] The ratio of the length of the buffer plate to the distance between the cell tabs is greater than 0.5:1.

[0011] In a further embodiment, the ratio of the length of the buffer plate to the length of the cell surface is 1.1:1.

[0012] The ratio of the length of the buffer plate to the distance between the electrode tabs of the battery cell is 0.8:1.

[0013] In a further embodiment, one side of the upper fixing table is provided with an upper range adjustment table, the upper range adjustment table is provided with a first waist-shaped hole, and at least one of the upper clamping knives is installed on the upper range adjustment table through screws and the first waist-shaped hole.

[0014] One side of the lower fixing table is provided with a lower range adjustment table, the lower range adjustment table is provided with a second waist-shaped hole, and at least one of the lower clamping knives is installed on the lower range adjustment table through screws and the second waist-shaped hole.

[0015] In a further embodiment, the upper clamping knife is in concave-convex fit with the upper range adjustment table.

[0016] The lower clamping knife is in concave-convex fit with the lower range adjustment table.

[0017] In a further embodiment, the upper buffer plate is provided with a third waist-shaped hole for cooperating with the upper range adjustment table, and the upper buffer plate is installed on the upper clamping knife through screws and the third waist-shaped hole.

[0018] The lower buffer plate is provided with a fourth waist-shaped hole for cooperating with the lower range adjustment table, and the lower buffer plate is installed on the lower clamping knife through screws and the fourth waist-shaped hole, so that the battery cell gripper can be applicable to battery cells of more sizes.

[0019] In a further embodiment, the upper buffer plate is adhesively fitted with the upper clamping knife.

[0020] The lower buffer plate is adhesively fitted with the lower clamping knife, which can reduce the processing cost of the clamping knife and the buffer plate.

[0021] In a further embodiment, the materials of the upper buffer plate and the lower buffer plate are PVC material or PP material.

[0022] The beneficial effects of the present utility model are as follows: By providing buffer plates with larger areas on the upper clamping knife and the lower clamping knife, the length of the upper buffer plate connects the two upper clamping knives, and the lower buffer plate connects the two lower clamping knives. The buffer plates are used to contact the battery cell, sharing the local pressure on the surface appearance diaphragm of the battery cell and reducing the probability of the diaphragm being squeezed and damaged. It solves the problem in the prior art that the contact area between the clamping jaws and the battery cell is small, and it is easy to cause excessive local pressure on the surface appearance diaphragm of the battery cell, resulting in the direct extrusion and damage of the surface appearance diaphragm of the battery cell by the clamping jaws. Description of the Drawings

[0023] Figure 1 It is an isometric schematic diagram of the independent structure of the battery cell gripper of the present utility model.

[0024] Figure 2It is a partial side view schematic diagram of the cell gripper of the present utility model.

[0025] Figure 3 It is an axonometric schematic diagram when the cell gripper of the present utility model grips a cell.

[0026] Figure 4 It is an axonometric schematic diagram of the internal structure of the whole machine provided with the cell gripper of the present utility model.

[0027] The reference numerals shown in the figure are: upper fixing table 1, upper range adjusting table 11, first waist-shaped hole 12, lower fixing table 2, lower range adjusting table 21, upper clamping knife 3, lower clamping knife 4, upper buffer plate 5, lower buffer plate 6, cell 7, tab 71, driving mechanism 8. Detailed implementation manners

[0028] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0029] The present application discloses a cell gripper that uses buffer plates to contact the cell, solving the problem in the prior art that the contact area between the clamping jaws and the cell is small, and it is easy to cause excessive local pressure on the surface appearance diaphragm of the cell, resulting in direct extrusion and damage of the surface appearance diaphragm of the cell by the clamping jaws.

[0030] As Figure 4 shown, the cell gripper is installed on the driving mechanism 8, and the driving mechanism 8 can be a driving mechanism 8 such as a manipulator or a linear motion mechanism.

[0031] As Figure 1 shown, the cell gripper includes: upper fixing table 1, lower fixing table 2, two upper clamping knives 3, two lower clamping knives 4, upper buffer plate 5 and lower buffer plate 6.

[0032] The upper fixing table 1 is installed on the driving mechanism 8, two upper clamping knives 3 are installed on the upper fixing table 1, the upper buffer plate 5 is installed on the upper clamping knives 3, the two upper clamping knives 3 are arranged at a predetermined interval, and the length of the upper buffer plate 5 connects the two upper clamping knives 3.

[0033] The lower fixing table 2 is installed on the driving mechanism 8, two lower clamping knives 4 are installed on the lower fixing table 2, the lower buffer plate 6 is installed on the lower clamping knives 4, the two lower clamping knives 4 are arranged at a predetermined interval, and the length of the lower buffer plate 6 connects the two lower clamping knives 4.

[0034] The upper buffer plate 5 and the lower buffer plate 6 are arranged between the upper clamping knife 3 and the lower clamping knife 4.

[0035] Regarding the upper buffer plate 5 and the lower buffer plate 6 , the ratio of the length of the buffer plate to the length of the surface of the battery cell is greater than 0.3:1.

[0036] The ratio of the length of the buffer plate to the spacing between the battery cell tabs is greater than 0.5:1.

[0037] In a preferred embodiment, the ratio of the length of the buffer plate to the surface length of the battery cell 7 is 1.1:1.

[0038] The ratio of the length of the buffer plate to the spacing between the battery cell tabs 71 is 0.8:1.

[0039] For example, if the length of the battery cell 7 is 30 cm and the distance between the tabs 71 is 10 cm, the length of the PVC plastic board is 33 cm and the width is 8 cm.

[0040] By matching the length and width of the buffer plate with the surface length of the battery cell 7 and the spacing between the tabs 71 , the local pressure of the diaphragm on the surface of the battery cell 7 is further distributed, reducing the probability of the diaphragm being squeezed and damaged.

[0041] In this embodiment, the upper buffer plate 5 and the lower buffer plate 6 are made of PVC material or PP material.

[0042] Regarding the upper fixing table 1 and the lower fixing table 2, as Figure 1 An upper range adjustment platform 11 is provided on one side of the upper fixed platform 1 , and a first waist-shaped hole 12 is provided on the upper range adjustment platform 11 . At least one upper clamping knife 3 is installed on the upper range adjustment platform 11 through a screw and the first waist-shaped hole 12 .

[0043] A lower range adjustment platform 21 is provided on one side of the lower fixed platform 2. A second waist-shaped hole is provided on the lower range adjustment platform 21. At least one lower clamping knife 4 is installed on the lower range adjustment platform 21 through a screw and the second waist-shaped hole.

[0044] like Figure 1 and 2 The upper clamping knife 3 and the lower clamping knife 4 are shown to have transverse grooves, and the upper range adjustment platform 11 and the lower range adjustment platform 21 are provided with transverse convex portions, so that the upper clamping knife 3 and the upper range adjustment platform 11 are matched in concave and convex manner, and the lower clamping knife 4 and the lower range adjustment platform 21 are matched in concave and convex manner.

[0045] The stability of the upper clamping knife 3 and the lower clamping knife 4 can be increased by the concave-convex matching.

[0046] In this embodiment, the upper buffer plate 5 is provided with a third waist-shaped hole matched with the upper range adjustment platform 11, and the upper buffer plate 5 is installed on the upper clamping knife 3 through screws and the third waist-shaped hole.

[0047] The lower buffer plate 6 is provided with a fourth waist-shaped hole matched with the lower range adjustment platform 21 , and the lower buffer plate 6 is installed on the lower clamping knife 4 through screws and the fourth waist-shaped hole.

[0048] The distance between the two upper clamping knives 3 and the distance between the two lower clamping knives 4 can be adjusted according to the length of the battery cell 7 through screws and waist-shaped holes, so that the battery cell gripper can be applicable to battery cells 7 of more sizes.

[0049] In another embodiment, the upper buffer plate 5 is adhesively cooperated with the upper clamping knife 3.

[0050] The lower buffer plate 6 is adhesively cooperated with the lower clamping knife 4.

[0051] The adhesive cooperation can directly tear off the old buffer plate when it is necessary to adjust the distance between the clamping knives according to the size of the battery cell 7. After adjusting the distance between the clamping knives according to the size of the battery cell 7, a new buffer plate can be adhered, which can reduce the processing cost of the clamping knives and the buffer plates.

[0052] Working method: The upper fixing table 1 and the lower fixing table 2 of the battery cell gripper are installed on the driving mechanism 8. When the upper buffer plate 5 and the lower buffer plate 6 of the battery cell gripper move to both sides in the thickness direction of the battery cell 7, the driving mechanism 8 drives the upper fixing table 1 and the lower fixing table 2 to move towards the battery cell 7, so that the upper buffer plate 5 and the lower buffer plate 6 contact the surface of the battery cell 7. Through the contact between the buffer plates and the battery cell 7, the local pressure of the surface appearance diaphragm of the battery cell 7 is shared, and the probability of diaphragm extrusion damage is reduced.

[0053] When the size of the battery cell 7 to be clamped changes and it is necessary to adjust the distance between the upper clamping knife 3, the distance between the lower clamping knife 4, the size of the upper buffer plate 5, and the size of the lower buffer plate 6, the upper buffer plate 5 can be separated from the upper clamping knife 3, the lower buffer plate 6 can be separated from the upper clamping knife 4, and then the distance between the upper clamping knife 3 and the lower clamping knife 4 can be adjusted to be applicable to battery cells of different sizes.

[0054] It is also possible to separate the upper clamping knife 3 from the upper fixing table 1 and separate the lower clamping knife 4 from the lower fixing table 2, and directly replace the upper clamping knife 3, the lower clamping knife 4, the upper buffer plate 5, and the lower buffer plate 6 as a whole to be applicable to battery cells of different sizes.

[0055] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as a limitation of the present invention itself. Various changes can be made in its form and details without departing from the spirit and scope of the present invention defined by the appended claims.

Claims

1. A battery cell gripper, which is installed on a driving mechanism; It is characterized in that The battery cell clamp includes: an upper fixing platform, a lower fixing platform, two upper clamping knives, two lower clamping knives, an upper buffer plate and a lower buffer plate; The upper fixing platform is installed on the driving mechanism, the two upper clamping knives are installed on the upper fixing platform, the upper buffer plate is installed on the upper clamping knives, the two upper clamping knives are arranged at a predetermined interval, and the length of the upper buffer plate connects the two upper clamping knives; The lower fixing platform is installed on the driving mechanism, the two lower clamping knives are installed on the lower fixing platform, the lower buffer plate is installed on the lower clamping knives, the two lower clamping knives are arranged at a predetermined interval, and the length of the lower buffer plate connects the two lower clamping knives; The upper buffer plate and the lower buffer plate are arranged between the upper clamping knife and the lower clamping knife.

2. The battery cell gripper according to claim 1, characterized in that: The ratio of the length of the buffer plate to the length of the cell surface is greater than 0.3:1; The ratio of the length of the buffer plate to the spacing between the battery cell tabs is greater than 0.5:

1.

3. A battery cell gripper according to claim 2, characterized in that: The ratio of the length of the buffer plate to the length of the cell surface is 1.1:1; The ratio of the length of the buffer plate to the spacing between the battery cell tabs is 0.8:

1.

4. The battery cell gripper according to claim 1, characterized in that: An upper range adjustment platform is provided on one side of the upper fixed platform, and a first waist-shaped hole is provided on the upper range adjustment platform, and at least one upper clamping knife is installed on the upper range adjustment platform through a screw and the first waist-shaped hole; A lower range adjustment platform is provided on one side of the lower fixed platform, and a second waist-shaped hole is provided on the lower range adjustment platform. At least one lower clamping knife is installed on the lower range adjustment platform through a screw and the second waist-shaped hole.

5. The battery cell gripper according to claim 4, characterized in that: The upper clamping knife is matched with the upper range adjustment platform in a concave-convex manner; The lower clamping knife is matched with the lower range adjustment platform in a concave-convex manner.

6. The battery cell gripper according to claim 4, characterized in that: The upper buffer plate is provided with a third waist-shaped hole matched with the upper range adjustment platform, and the upper buffer plate is installed on the upper clamping knife through screws and the third waist-shaped hole; The lower buffer plate is provided with a fourth waist-shaped hole matched with the lower range adjustment platform, and the lower buffer plate is installed on the lower clamping knife through screws and the fourth waist-shaped hole.

7. A battery cell gripper according to claim 1 or 4, characterized in that: The upper buffer plate is bonded and matched with the upper clamping knife; The lower buffer plate is bonded and matched with the lower clamping knife.

8. The battery cell gripper according to claim 1, characterized in that: The upper buffer plate and the lower buffer plate are made of PVC material or PP material.

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