Air tightness detection tool for battery case

Abstract

The utility model provides a battery case airtightness detection tool, and belongs to the technical field of battery detection. Comprising a detection rack, a sealing plate is arranged on the top of the detection rack, limiting baffles are symmetrically arranged on the two sides of the top of the sealing plate, upper clamping assemblies arranged on the outer sides of the limiting baffles are symmetrically arranged on the two sides of the top of the sealing plate, and a plurality of lower clamping assemblies are arranged on the other two sides of the top of the sealing plate; the pushing positioning assembly comprises a supporting block, and a pushing cylinder is arranged at the top of the supporting block. The battery case is limited between the positioning plate and the positioning baffle to prevent the placement position of the battery case from deviating improperly, the transverse clamping block moves downwards to be tightly attached to the two sides of the upper tops of the two sides of the battery case, and the vertical clamping block moves downwards to be tightly attached to the two sides of the lower tops of the other two sides of the battery case to press the periphery of the battery case. The battery case is pressed on the sealing plate, the battery case is sealed, air leakage is effectively avoided, and the accuracy of air tightness detection of the battery case is prevented from being affected.

Description

Technical Field

[0001] The utility model provides an airtight detection tooling for a battery case, belonging to the technical field of battery detection. Background Technique

[0002] A battery refers to a part of a cup, tank or other container or composite container that contains an electrolyte solution and metal electrodes to generate current, and is a device that can convert chemical energy into electrical energy, with positive and negative electrodes. During the production process of new energy batteries, the requirement for the airtightness of the battery case is particularly high, and the airtightness of the case will directly affect the quality of the battery.

[0003] The most common method for airtight detection of a battery case is: holding a ventilation and pressurization device to ventilate and maintain pressure on the battery case, and monitoring pressure data through an airtightness detector to detect the airtightness of the battery case. This method can basically meet the usage requirements. However, during the airtightness detection work, it is often impossible to ensure the sealing of the battery case, which easily affects the accuracy of the airtightness detection of the battery case. Based on this, the utility model provides an airtight detection tooling for a battery case. Content of the Utility Model

[0004] The technical problem solved by the utility model is that when holding a ventilation and pressurization device to ventilate and maintain pressure on the battery case, it is often impossible to ensure the sealing of the battery case, which easily affects the accuracy of the airtightness detection of the battery case.

[0005] To solve the technical problem, the technical solution provided by the utility model is: an airtight detection tooling for a battery case, including a detection bench frame, a sealing plate is arranged at the top of the detection bench frame, limiting baffles are symmetrically arranged on both sides of the top of the sealing plate, upper clamping components are symmetrically arranged on both sides of the top of the sealing plate outside the limiting baffles, a plurality of lower clamping components are arranged on the other two sides of the top of the sealing plate, a pushing and positioning component is arranged between the lower clamping components on one side, the pushing and positioning component includes a support block arranged at one end of the top of the sealing plate, a pushing cylinder is arranged on the top of the support block, an installation plate is arranged at the telescopic rod end of the pushing cylinder, and a positioning baffle is fixedly connected to the side wall of the installation plate through screws.

[0006] Further, the upper clamping component includes a clamping cylinder one, the telescopic rod end of the clamping cylinder one is rotatably connected to a connecting block one, and a transverse clamping block is fixedly connected to the bottom wall of the connecting block one through screws.

[0007] Further, the lower clamping component includes a clamping cylinder two, the telescopic rod end of the clamping cylinder two is rotatably connected to a connecting block two, and a vertical clamping block is fixedly connected to the bottom wall of the connecting block two through screws.

[0008] Further, an air inlet is provided on the sealing plate, and the air inlet is communicated with a ventilation and pressurization device, and the ventilation and pressurization device is matched with an airtightness detector.

[0009] Further, the limiting baffle includes an L-shaped connecting plate fixedly arranged on the top of the sealing plate by screws, and a positioning plate is fixedly connected to the side wall of the vertical plate of the L-shaped connecting plate by screws.

[0010] Advantages of the utility model:

[0011] Place the battery case on the top of the sealing plate. Under the action of the limiting baffle and the pushing and positioning assembly, the battery case is limited between the positioning plate and the positioning baffle, so as to prevent the improper placement position of the battery case from affecting the clamping work of the upper clamping assembly and the lower clamping assembly on the battery case. Under the action of the upper clamping assembly and the lower clamping assembly, the transverse clamping block moves down to closely fit with both sides of the upper top of the battery case, and the vertical clamping block moves down to closely fit with both sides of the lower top of the other two sides of the battery case, thereby pressing the periphery of the battery case, making the battery case tightly pressed on the sealing plate, sealing the battery case, effectively avoiding air leakage, and preventing it from affecting the accuracy of the airtightness detection of the battery case. Description of the drawings

[0012] Figure 1 is a schematic structural diagram of a battery case airtightness detection tooling of the utility model Figure 1 。

[0013] Figure 2 is a schematic structural diagram of a battery case airtightness detection tooling of the utility model Figure 2 。

[0014] Figure 3 is a plan view of a battery case airtightness detection tooling of the utility model.

[0015] Figure 4 is a schematic structural diagram of the upper clamping assembly of a battery case airtightness detection tooling of the utility model.

[0016] Figure 5 is a schematic structural diagram of the lower clamping assembly of a battery case airtightness detection tooling of the utility model.

[0017] 1. Detection bench; 2. Sealing plate; 3. Limiting baffle; 4. Upper clamping assembly; 5. Lower clamping assembly; 6. Pushing and positioning assembly; 7. Support block; 8. Pushing cylinder; 9. Mounting plate; 10. Positioning baffle; 11. Clamping cylinder one; 12. Connecting block one; 13. Transverse clamping block; 14. Clamping cylinder two; 15. Connecting block two; 16. Vertical clamping block; 17. L-shaped connecting plate; 18. Positioning plate. Specific implementation manners

[0018] The present utility model will be further described below in conjunction with the accompanying drawings.

[0019] According to the attached Figure 1 As shown: The present utility model provides a battery case airtight detection tooling, which includes a detection bench 1. A sealing plate 2 is provided on the top of the detection bench 1. An air inlet is provided on the sealing plate 2, and the air inlet is communicated with an air ventilation and pressurization device. The air ventilation and pressurization device cooperates with an airtightness detector. Place the battery case on the top of the sealing plate 2, and ventilate and pressurize the inside of the battery case through the air inlet by the air ventilation and pressurization device, so that the inside of the battery case is in a certain pressure state. Monitor the pressure data through the airtightness detector to detect the airtightness of the battery case.

[0020] According to the attached Figure 1 、 2 、3 As shown: On both sides of the top of the sealing plate 2, limit baffles 3 are symmetrically arranged. The limit baffle 3 includes an L-shaped connecting plate 17 fixedly arranged on the top of the sealing plate 2 by screws. A positioning plate 18 is fixedly connected to the side wall of the vertical plate of the L-shaped connecting plate 17 by screws, and the battery case can be limited between the positioning plates 18. On both sides of the top of the sealing plate 2, upper clamping components 4 are symmetrically arranged outside the limit baffles 3. On the other two sides of the top of the sealing plate 2, a plurality of lower clamping components 5 are provided. A pushing and positioning component 6 is arranged between one side of the lower clamping components 5. The pushing and positioning component 6 includes a support block 7 placed at one end of the top of the sealing plate 2. A pushing cylinder 8 is provided on the top of the support block 7. An installation plate 9 is provided at the telescopic rod end of the pushing cylinder 8. A positioning baffle 10 is fixedly connected to the side wall of the installation plate 9 by screws. One side wall of the battery case is attached to the side wall of the positioning baffle 10. By starting the pushing cylinder 8, the installation plate 9 moves, and then drives the positioning baffle 10 to move, and then pushes the battery case to a suitable position, so that the battery case is placed inside the lower clamping components 5 on both sides, and then the battery case is limited between the positioning plates 18 and the positioning baffle 10.

[0021] According to the attached Figure 1 、 4 As shown: The upper clamping component 4 includes a clamping cylinder 11. The telescopic rod end of the clamping cylinder 11 is rotatably connected to a connecting block 12. A transverse clamping block 13 is fixedly connected to the bottom wall of the connecting block 12 by screws. Rotate the connecting block 12 to make the transverse clamping block 13 rotate above the battery case. By starting the clamping cylinder 11, the connecting block 12 moves downward, and then drives the transverse clamping block 13 to move downward until the transverse clamping block 13 moves down to closely fit the two sides of the upper top of the battery case.

[0022] According to the attached Figure 1 、 5As shown in the figure: The lower clamping assembly 5 includes a second clamping cylinder 14. The telescopic rod end of the second clamping cylinder 14 is rotatably connected to a second connecting block 15. The bottom wall of the second connecting block 15 is fixedly connected with a vertical clamping block 16 by screws. Rotating the second connecting block 15 causes the vertical clamping block 16 to rotate above the battery case. By starting the second clamping cylinder 14, the second connecting block 15 moves downward, thereby driving the vertical clamping block 16 to move downward until the vertical clamping block 16 moves downward to closely fit the two sides of the lower top of the other two sides of the battery case.

[0023] Principle of the present utility model

[0024] During use, place the battery case on the top of the sealing plate 2 and limit it between the positioning plates 18, and make one side wall of the battery case fit the side wall of the positioning baffle 10. By operating the pushing and positioning assembly 6 to drive the positioning baffle 10 to move, the battery case is further pushed to a proper position, so that the battery case is placed inside the two lower clamping assemblies 5 on both sides, and then the battery case is limited between the positioning plates 18 and the positioning baffle 10 to prevent the improper placement position of the battery case from affecting the clamping work of the upper clamping assembly 4 and the lower clamping assembly 5 on the battery case. By operating the upper clamping assembly 4 and the lower clamping assembly 5, the horizontal clamping block 13 moves downward to closely fit the two sides of the upper top of the battery case, and the vertical clamping block 16 moves downward to closely fit the two sides of the lower top of the other two sides of the battery case, thereby pressing the periphery of the battery case and pressing the battery case tightly on the sealing plate 2 to seal the battery case, effectively avoiding air leakage and preventing it from affecting the airtightness detection of the battery case.

[0025] During the airtightness detection, the airtightness detection device passes air into the battery case through the air inlet to pressurize it, so that the inside of the battery case is in a certain pressure state. The airtightness detector is used to monitor the pressure data to detect the airtightness of the battery case.

[0026] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative work without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A battery shell airtightness detection tool, comprising a detection stand (1), characterized in that: The top of the detection stand (1) is provided with a sealing plate (2), and limit baffles (3) are symmetrically provided on both sides of the top of the sealing plate (2), and upper clamping components (4) arranged on the outside of the limit baffles (3) are symmetrically provided on both sides of the top of the sealing plate (2), and a plurality of lower clamping components (5) are arranged on the other two sides of the top of the sealing plate (2), and a push positioning component (6) is arranged between the lower clamping components (5) on one side, and the push positioning component (6) includes a support block (7) arranged at one end of the top of the sealing plate (2), and a push cylinder (8) is provided on the top of the support block (7), and a mounting plate (9) is provided at the telescopic rod end of the push cylinder (8), and the side wall of the mounting plate (9) is fixedly connected with a positioning baffle (10) by screws.

2. A battery shell airtightness detection tool according to claim 1, characterized in that: The upper clamping assembly (4) comprises a clamping cylinder (11), the telescopic rod end of the clamping cylinder (11) is rotatably connected to a connecting block (12), and the bottom wall of the connecting block (12) is fixedly connected to a transverse clamping block (13) by means of screws.

3. A battery shell airtightness detection tool according to claim 1, characterized in that: The lower clamping assembly (5) comprises a clamping cylinder 2 (14), the telescopic rod end of the clamping cylinder 2 (14) is rotatably connected to a connecting block 2 (15), and the bottom wall of the connecting block 2 (15) is fixedly connected to a vertical clamping block (16) by means of screws.

4. The battery shell airtightness detection tool according to claim 1, characterized in that: The sealing plate (2) is provided with an air inlet, the air inlet is connected to a ventilation and pressurizing device, and the ventilation and pressurizing device cooperates with an air tightness detector.

5. The battery shell airtightness detection tool according to claim 1, characterized in that: The limit baffle (3) comprises an L-shaped connecting plate (17) fixedly arranged on the top of the sealing plate (2) by means of screws, and a positioning plate (18) is fixedly connected to the vertical plate side wall of the L-shaped connecting plate (17) by means of screws.

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