Battery cell short circuit test positioning device

Abstract

The utility model discloses a battery cell short circuit test positioning device, which comprises a lifting mechanism, a first clamping mechanism and a second clamping mechanism, the lifting mechanism is provided with the first clamping mechanism and the second clamping mechanism which can move vertically, the clamping end of the first clamping mechanism can be telescopically clamped along the horizontal longitudinal direction, and the clamping end of the second clamping mechanism can be telescopically clamped along the horizontal longitudinal direction. And the clamping end of the second clamping mechanism can be telescopically clamped in the horizontal transverse direction. The battery cell positioning device has the advantages that the two longitudinal sides of the battery cell are clamped through the first clamping mechanism, then the two transverse sides of the battery cell are clamped through the second clamping mechanism, and then the first clamping mechanism and the second clamping mechanism are driven by the lifting mechanism to move in the vertical direction, so that the accurate positioning of the battery cell in the horizontal longitudinal direction and the transverse direction is realized; the test efficiency is improved, the probability of short circuit misjudgment in the subsequent short circuit test is reduced, and the overall quality and safety of battery products are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cell testing, in particular to a battery cell short-circuit testing positioning device. Background Art

[0002] In the production of lithium-ion batteries, short-circuit testing of battery cells is an essential step, which aims to eliminate potential safety risks by detecting whether the battery cells have internal or external short circuits. Therefore, it is particularly important to improve the accuracy of this step. The consistency of the battery cell position is directly related to whether the short-circuit test results are accurate. Traditional battery cell short-circuit testing usually involves manual operation or simple mechanical equipment, which cannot accurately locate the battery cell and is inefficient; and traditional battery cell fixing tooling lacks reliability. During the short-circuit test, the battery may become loose, and there is a risk of misjudgment of short circuit, which affects the overall quality and safety of the battery product. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to improve the testing efficiency and ensure the quality of battery products.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A battery cell short circuit test positioning device comprises a lifting mechanism, a first clamping mechanism and a second clamping mechanism. The lifting mechanism is provided with a first clamping mechanism and a second clamping mechanism capable of vertical movement. The clamping end of the first clamping mechanism can be telescopically clamped in a horizontal longitudinal direction, and the clamping end of the second clamping mechanism can be telescopically clamped in a horizontal transverse direction.

[0006] First, the battery cell is clamped on both sides in the longitudinal direction by the first clamping mechanism, and then the battery cell is clamped on both sides in the lateral direction by the second clamping mechanism. Then, the first clamping mechanism and the second clamping mechanism are driven to move in the vertical direction by the lifting mechanism, so as to realize the precise positioning of the battery cell in the horizontal longitudinal and lateral directions, which not only improves the test efficiency, but also reduces the probability of short circuit misjudgment in subsequent short circuit tests, thereby ensuring the overall quality and safety of the battery product.

[0007] Preferably, the lifting mechanism includes a lifting platform, a lifting drive assembly and a fixed plate. The lifting platform is provided with a lifting drive assembly. The driving end of the lifting drive assembly is connected to a fixed plate that can move vertically on the lifting platform. The first clamping mechanism and the second clamping mechanism are both arranged on the fixed plate.

[0008] The lifting drive assembly is driven to drive the fixing plate to move vertically on the lifting platform, thereby realizing the vertical movement of the first clamping mechanism and the second clamping mechanism.

[0009] Preferably, the lifting drive assembly includes a lifting cylinder, a floating joint, and a guide rod. The fixed end of the lifting cylinder is fixed on the lifting platform, the two groups of guide rods are vertically fixed on the lifting platform, the fixed plate can be vertically slidably mounted on the two groups of guide rods, and the output end of the lifting cylinder is connected to the fixed plate via a floating joint.

[0010] The lifting cylinder is driven to drive the fixing plate to move vertically on the guide rod, and the fixing plate is guided and positioned in the vertical direction through the guide rod.

[0011] Preferably, the lifting platform is further provided with an upper limiter and a lower limiter, and the fixed plate is provided with a limit block capable of cooperating with the upper limiter and the lower limiter, thereby realizing the position limitation of the fixed plate in the vertical direction.

[0012] Preferably, the first clamping mechanism includes a first clamping cylinder, a first clamping jaw and a second clamping jaw, the fixed end of the first clamping cylinder is fixed to the lifting end of the lifting mechanism, the first clamping jaw and the second clamping jaw are both fixed to the driving end of the first clamping cylinder, and driving the first clamping cylinder can drive the first clamping jaw and the second clamping jaw to expand or contract in the horizontal longitudinal direction.

[0013] Preferably, the first clamping jaw and the second clamping jaw are respectively provided with a first travel limiter and a second travel limiter.

[0014] The first stroke limiter and the second stroke limiter cooperate with each other to achieve displacement limitation of the first clamping jaw and the second clamping jaw in the horizontal longitudinal direction.

[0015] Preferably, the first clamping cylinder is a double-headed cylinder.

[0016] Preferably, the second clamping mechanism includes a second clamping cylinder, a third clamping jaw and a fourth clamping jaw, the fixed end of the second clamping cylinder is fixed to the lifting end of the lifting mechanism, the third clamping jaw and the fourth clamping jaw are both fixed to the driving end of the second clamping cylinder, and driving the second clamping cylinder can drive the third clamping jaw and the fourth clamping jaw to expand or contract in the horizontal lateral direction.

[0017] The second clamping cylinder is driven to drive the third clamping jaw and the fourth clamping jaw to contract in the horizontal lateral direction, thereby clamping the two lateral sides of the battery cell.

[0018] Preferably, the fixed end of the second clamping cylinder is fixed to the lifting end of the lifting mechanism through a fixed bracket.

[0019] Preferably, the second clamping cylinder is a double-headed cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the lifting mechanism of the utility model embodiment;

[0022] Figure 3 This is a schematic diagram of the structure of the first clamping mechanism of an embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the second clamping mechanism of an embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to facilitate those skilled in the art to understand the technical solution of the utility model, the technical solution of the utility model is further explained in conjunction with the drawings in the specification.

[0025] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically limited.

[0027] See also Figure 1 The present embodiment discloses a battery cell short circuit test positioning device, comprising a lifting mechanism 1, a first clamping mechanism 2 and a second clamping mechanism 3. The lifting mechanism 1 is provided with a first clamping mechanism 2 and a second clamping mechanism 3 which can move vertically. The clamping end of the first clamping mechanism 2 can be retracted along the horizontal longitudinal direction to clamp the longitudinal sides of the battery cell, and the clamping end of the second clamping mechanism 3 can be retracted along the horizontal transverse direction to clamp the transverse sides of the battery cell.

[0028] First, the two longitudinal sides of the battery cell are clamped by the first clamping mechanism 2, and then the two lateral sides of the battery cell are clamped by the second clamping mechanism 3. Then, the first clamping mechanism 2 and the second clamping mechanism 3 are driven to move in the vertical direction by the lifting mechanism 1, so as to realize the precise positioning of the battery cell in the horizontal longitudinal and lateral directions, which not only improves the test efficiency, but also reduces the probability of short-circuit misjudgment in subsequent short-circuit tests, thereby ensuring the overall quality and safety of the battery product.

[0029] See also Figure 2 The lifting mechanism includes a lifting platform 14, a lifting drive assembly and a fixed plate 18. The lifting platform 14 is provided with a lifting drive assembly, and the driving end of the lifting drive assembly is connected to the fixed plate 18 capable of vertically moving on the lifting platform 14. The first clamping mechanism 2 and the second clamping mechanism 3 are both provided on the fixed plate 18. In this embodiment, the lifting platform 14 is in a U-shaped opening shape.

[0030] The lifting drive assembly includes a lifting cylinder 11, a guide rod 12, and a floating joint 17. The fixed end of the lifting cylinder 11 is fixed to the outer wall of the vertical side plate on one side of the lifting platform 14. The two groups of guide rods 12 are vertically fixed at the opening of the lifting platform 14. The fixed plate 18 can be vertically slidably mounted on the two groups of guide rods 12. The guide rods 12 are used to guide and position the fixed plate 18 in the vertical direction. The output end of the lifting cylinder 11 passes through the vertical side plate and is connected to the fixed plate 18 through the floating joint 17.

[0031] The upper and lower ends of the lifting platform 14 are also provided with an upper limiter 13 and a lower limiter 16 , and the fixing plate 18 is provided with a limit block 15 that can cooperate with the upper limiter 13 and the lower limiter 16 .

[0032] Specifically, the lifting cylinder 11 is driven to drive the fixed plate 18 to slide vertically on the guide rod 12. When the fixed plate 18 slides upward and the limit block 15 touches the upper limiter 13, the fixed plate 18 reaches its highest position and the fixed plate 18 no longer moves upward. When the fixed plate 18 slides downward and the limit block 15 touches the lower limiter 16, the fixed plate 18 reaches its lowest position and the fixed plate 18 no longer moves downward, thereby realizing the position limitation of the fixed plate 18 in the vertical direction.

[0033] See also Figure 3The first clamping mechanism 2 includes a first clamping cylinder 21, a first stroke limiter 22, a second stroke limiter 23, a first clamping jaw 24 and a second clamping jaw 25. In the present embodiment, the first clamping cylinder 21 is a double-headed cylinder, the fixed end of the first clamping cylinder 21 is fixed on the fixed plate 18, the first clamping jaw 24 and the second clamping jaw 25 are respectively fixed on the two driving ends of the first clamping cylinder 21, and driving the first clamping cylinder 21 can drive the first clamping jaw 24 and the second clamping jaw 25 to expand or contract in the horizontal longitudinal direction. The first clamping jaw 24 and the second clamping jaw 25 are respectively provided with a first stroke limiter 22 and a second stroke limiter 23.

[0034] Specifically, the first clamping cylinder 21 is driven to cause the first clamping jaw 24 and the second clamping jaw 25 to contract in the horizontal longitudinal direction to achieve clamping on both sides of the longitudinal direction of the battery cell. At the same time, the first stroke limiter 22 and the second stroke limiter 23 cooperate with each other to achieve displacement limitation of the first clamping jaw 24 and the second clamping jaw 25 in the horizontal longitudinal direction.

[0035] See also Figure 4 The second clamping mechanism 3 includes a fixed bracket 31, a second clamping cylinder 33, a third clamping jaw 32 and a fourth clamping jaw 34. In the present embodiment, the second clamping cylinder 33 is also a double-headed cylinder. The fixed end of the second clamping cylinder 33 is fixed to the fixed plate 18 through the fixed bracket 31. The third clamping jaw 32 and the fourth clamping jaw 34 are both fixed to the two driving ends of the second clamping cylinder 33. Driving the second clamping cylinder 33 can drive the third clamping jaw 32 and the fourth clamping jaw 34 to expand or contract in the horizontal transverse direction.

[0036] Specifically, the second clamping cylinder 33 is driven to drive the third clamping jaw 32 and the fourth clamping jaw 34 to contract in the horizontal lateral direction, thereby clamping the two lateral sides of the battery cell.

[0037] The working principle of this embodiment is as follows: first, the first clamping cylinder 21 is driven to drive the first clamping jaw 24 and the second clamping jaw 25 to contract in the horizontal longitudinal direction to achieve clamping on both sides of the longitudinal direction of the battery cell. At the same time, the first stroke limiter 22 and the second stroke limiter 23 cooperate with each other to achieve displacement limitation of the first clamping jaw 24 and the second clamping jaw 25 in the horizontal longitudinal direction; then, the second clamping cylinder 33 is driven to drive the third clamping jaw 32 and the fourth clamping jaw 34 to contract in the horizontal transverse direction to achieve clamping on both sides of the transverse direction of the battery cell; finally, the lifting cylinder 11 is driven to drive the fixed plate 18 to slide vertically on the guide rod 12, and then the first clamping mechanism 2 and the second clamping mechanism 3 are driven to move in the vertical direction through the fixed plate 18, thereby achieving movement and positioning of the battery cell in the vertical, longitudinal and transverse directions.

[0038] In addition, when the fixed plate 18 slides upward and the limit block 15 touches the upper limiter 13, the fixed plate 18 reaches its highest position and the fixed plate 18 no longer moves upward; when the fixed plate 18 slides downward and the limit block 15 touches the lower limiter 16, the fixed plate 18 reaches its lowest position and the fixed plate 18 no longer moves downward, thereby achieving the position limitation of the fixed plate 18 in the vertical direction.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0040] The above-described embodiments merely represent implementation methods of the utility model, and the protection scope of the utility model is not limited to the above-described embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and all of these belong to the protection scope of the utility model.

Claims

1. A battery cell short circuit test positioning device, characterized in that: It includes a lifting mechanism, a first clamping mechanism and a second clamping mechanism. The lifting mechanism is provided with the first clamping mechanism and the second clamping mechanism which can move vertically. The clamping end of the first clamping mechanism can be telescopically clamped along the horizontal longitudinal direction, and the clamping end of the second clamping mechanism can be telescopically clamped along the horizontal transverse direction.

2. A battery cell short circuit test positioning device according to claim 1, characterized in that: The lifting mechanism includes a lifting platform, a lifting drive assembly and a fixed plate. The lifting platform is provided with a lifting drive assembly. The driving end of the lifting drive assembly is connected to a fixed plate capable of vertically moving on the lifting platform. The first clamping mechanism and the second clamping mechanism are both provided on the fixed plate.

3. A battery cell short circuit test positioning device according to claim 2, characterized in that: The lifting drive assembly includes a lifting cylinder, a floating joint, and a guide rod. The fixed end of the lifting cylinder is fixed on the lifting platform. The two groups of guide rods are vertically fixed on the lifting platform. The fixed plate can be vertically slidably mounted on the two groups of guide rods. The output end of the lifting cylinder is connected to the fixed plate via a floating joint.

4. A battery cell short circuit test positioning device according to claim 2, characterized in that: The lifting platform is also provided with an upper limiter and a lower limiter, and the fixing plate is provided with a limit block which can cooperate with the upper limiter and the lower limiter.

5. A battery cell short circuit test positioning device according to claim 1, characterized in that: The first clamping mechanism includes a first clamping cylinder, a first clamping jaw and a second clamping jaw. The fixed end of the first clamping cylinder is fixed to the lifting end of the lifting mechanism. The first clamping jaw and the second clamping jaw are both fixed to the driving end of the first clamping cylinder. Driving the first clamping cylinder can drive the first clamping jaw and the second clamping jaw to expand or contract in the horizontal longitudinal direction.

6. A battery cell short circuit test positioning device according to claim 5, characterized in that: The first clamping jaw and the second clamping jaw are respectively provided with a first travel limiter and a second travel limiter.

7. A battery cell short circuit test positioning device according to claim 5, characterized in that: The first clamping cylinder is a double-headed cylinder.

8. A battery cell short circuit test positioning device according to claim 1, characterized in that: The second clamping mechanism includes a second clamping cylinder, a third clamping jaw and a fourth clamping jaw. The fixed end of the second clamping cylinder is fixed to the lifting end of the lifting mechanism. The third clamping jaw and the fourth clamping jaw are both fixed to the driving end of the second clamping cylinder. Driving the second clamping cylinder can drive the third clamping jaw and the fourth clamping jaw to expand or contract in the horizontal transverse direction.

9. A battery cell short circuit test positioning device according to claim 8, characterized in that: The fixed end of the second clamping cylinder is fixed to the lifting end of the lifting mechanism through a fixed bracket.

10. A battery cell short circuit test positioning device according to claim 9, characterized in that: The second clamping cylinder is a double-headed cylinder.

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