An upper cover airtight test free adhesive tape device

Abstract

The application relates to the field of air tightness testing, in particular to a device for air tightness testing of an upper cover without sticking adhesive tape. The device comprises a mounting plate and a pressing device. The pressing device comprises two groups of first pressing mechanisms arranged on the front and back sides of the mounting plate and used for pressing the front and back sides of the outer edge of a flange, and two groups of second pressing mechanisms arranged on the left and right sides of the mounting plate and used for pressing the left and right sides of the outer edge of the flange. Each of the first pressing mechanisms comprises a first pressing strip and a first driving device used for driving the first pressing strip to swing up and down. At least one of the first pressing strips is provided with an elastic outer pressing block which protrudes from the front and back sides of the first pressing strip. An inner fixed block is fixedly arranged on the opposite side of the elastic outer pressing block. The device can automatically block holes, thereby improving the testing efficiency.

Description

Technical Field

[0001] This application relates to the field of airtightness testing, and in particular to a device for testing the airtightness of a cover without applying adhesive tape. Background Technology

[0002] The battery cover is designed with pre-drilled anti-valve holes or fire extinguishing holes on the side. Therefore, during airtightness testing, these holes need to be manually sealed with tape. This process is time-consuming for employees to apply the tape, and also time-consuming to remove it. Furthermore, tape residue remains on the cover after removal, requiring cleaning with thinner, making it both time-consuming and labor-intensive. Summary of the Invention

[0003] In view of this, this application provides a device for testing the airtightness of a cover without applying adhesive tape. This device can automatically seal the holes, thereby improving testing efficiency.

[0004] To achieve the above objectives, this application employs the following technical solution:

[0005] A device for testing the airtightness of a battery cover without applying adhesive tape is characterized by comprising a mounting plate and a pressing device disposed on the mounting plate for pressing the outer edge of the flange of the battery cover onto the mounting plate. The pressing device includes two sets of first pressing mechanisms disposed on the front and rear sides of the mounting plate for pressing the front and rear sides of the flange outer edge, and two sets of second pressing mechanisms disposed on the left and right sides of the mounting plate for pressing the left and right sides of the flange outer edge. Each of the first pressing mechanisms includes a first pressing strip and a first driving device for driving the first pressing strip to swing up and down. At least one of the first pressing strips is provided with an elastic outer pressing block, which protrudes from the front and rear sides of the first pressing strip. An inner fixing block is fixedly disposed on the opposite side of the elastic outer pressing block on the mounting plate. When the first pressing strip swings downward, it presses the upper surface of the front and rear sides of the flange outer edge. The elastic outer pressing block presses inward against the front and rear sidewalls of the battery cover, pressing the sidewalls against the inner fixing block, and sealing the holes on the sidewalls through the compression deformation of the elastic outer pressing block. Preferably, the elastic outer pressing block is made of foam material.

[0006] The aforementioned application discloses a device for airtightness testing of battery cover without the need for adhesive tape. Through a first pressing mechanism and a second pressing mechanism, the outer edge of the flange of the battery cover is pressed tightly against the mounting plate to form a sealed environment, thereby enabling airtightness testing. An elastic external pressure block is added to the first pressure strip. By compressing, the elastic external pressure block deforms and cooperates with the internal fixing block, automatically sealing the holes on the battery cover without the need for manual tape application, thus improving work efficiency.

[0007] In some embodiments, the first driving device includes at least one first cylinder and a first swing arm; the first cylinder is mounted on a mounting plate, and a first connecting seat is fixedly provided on the cylinder seat of the first cylinder; the middle part of the first swing arm is rotatably connected to the first connecting seat; one end of the first swing arm is fixed to the first pressure bar, and the other end is hinged to the piston rod end of the first cylinder; thus, when the first cylinder moves in extension and retraction, the first pressure bar is driven to swing up and down through the first swing arm; and a plurality of first extrusion heads are also fixedly provided at the bottom of the first pressure bar.

[0008] In some embodiments, the second pressing mechanism includes a plurality of second pressing components spaced apart in the front-rear direction; the second pressing component includes a second pressing bar, a second cylinder and a second swing arm, the second cylinder is mounted on a mounting plate, a second connecting seat is fixedly provided on the cylinder seat of the second cylinder, the middle part of the second swing arm is rotatably connected to the second connecting seat, one end of the second swing arm is fixed to the second pressing bar, and the other end is hinged to the piston rod end of the second cylinder, so that when the second cylinder moves in extension and retraction, the second pressing bar is driven to swing up and down through the second swing arm, and a plurality of second extrusion heads are also fixedly provided at the bottom of the second pressing bar.

[0009] In some embodiments, a third pressing mechanism is provided on both the left and right sides of the mounting plate to press against the top of the battery cover. The third pressing mechanism is used to press the top of the battery cover to prevent the top of the battery cover from deforming during inflation.

[0010] In some embodiments, the third pressing mechanism includes a third pressure bar, an extension plate, a third swing arm, and a third cylinder. The third cylinder is mounted on a mounting plate, and a third connecting seat is fixedly provided on the cylinder seat of the third cylinder. The middle part of the third swing arm is rotatably connected to the third connecting seat. One end of the third swing arm is fixed to the extension plate, and the other end is hinged to the piston rod end of the third cylinder. The other end of the extension plate is fixed to the third pressure bar. Thus, when the third cylinder moves in extension and retraction, it drives the third pressure bar to swing up and down through the third swing arm and the extension plate.

[0011] In some embodiments, the mounting plate is further fixedly provided with a plurality of inner limiting blocks for pressing against the inner surface of the side wall of the battery cover. These inner limiting blocks are primarily used to position the battery cover in the correct mounting position.

[0012] In some embodiments, a filler block is also provided in the middle of the mounting plate. The filler block is mainly used to simulate the position and size of the battery within the battery cover. This makes the airtightness test more closely resemble the actual situation, resulting in better test results.

[0013] As can be seen from the above technical solution, this application has at least the following advantages and positive effects:

[0014] This application discloses a device for testing the airtightness of a battery cover without applying tape. A first pressing mechanism and a second pressing mechanism can press the outer edge of the flange of the battery cover tightly onto a mounting plate to form a sealed environment, thereby enabling airtightness testing. An elastic outer pressure block is added to the first pressure strip. By compressing, the elastic outer pressure block deforms and engages with the inner fixing block, automatically sealing the holes on the battery cover without the need for manual tape application, thus improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0016] Figure 2 This is a usage state diagram of an embodiment of this application;

[0017] Figure 3 This is a schematic diagram of the structure of the first pressing mechanism in the embodiments of this application;

[0018] Figure 4 This is a schematic diagram of the structure of the sealing hole in an embodiment of this application;

[0019] Figure 5 This is a schematic diagram of the structure of the second pressing component in the embodiments of this application;

[0020] Figure 6 This is a schematic diagram of the structure of the third pressing component in the embodiments of this application;

[0021] Figure 7 This is a schematic diagram of the structure of the battery cover in an embodiment of this application.

[0022] Labeling Explanation: 1. Mounting plate; 2. First pressing mechanism; 21. First pressure bar; 22. First cylinder; 23. First swing arm; 24. First connecting seat; 25. First extrusion head; 26. Elastic outer pressure block; 3. Second pressing assembly; 31. Second pressure bar; 32. Second cylinder; 33. Second swing arm; 34. Second connecting seat; 35. Second extrusion head; 4. Inner fixing block; 5. Third pressing mechanism; 51. Third pressure bar; 52. Extension plate; 53. Third swing arm; 54. Third cylinder; 55. Third connecting seat; 6. Inner limit block; 7. Filling block; 8. Battery cover; 81. Flange outer edge; 82. Hole; 83. Side wall. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the application will be described in further detail below with reference to the accompanying drawings. The terminology used in the embodiments section of this application is only for explaining specific embodiments and is not intended to limit the application.

[0024] See Figures 1 to 7This application provides a device for testing the airtightness of a battery cover without applying adhesive tape. The device includes a mounting plate 1 and a pressing device disposed on the mounting plate 1 to press the outer edge 81 of the flange of the battery cover 8 against the mounting plate 1. The pressing device includes two sets of first pressing mechanisms 2 disposed on the front and rear sides of the mounting plate 1 to press the outer edge 81 of the flange against the front and rear sides, and two sets of second pressing mechanisms disposed on the left and right sides of the mounting plate 1 to press the outer edge 81 of the flange against the left and right sides. Each of the first pressing mechanisms 2 includes a first pressure strip 21 and a first driving device for driving the first pressure strip 21 to swing up and down. At least one first pressure strip 21 is provided with an elastic outer pressure block 26, which protrudes from the front and rear sides of the first pressure strip 21. An inner fixing block 4 is fixedly provided on the opposite side of the elastic outer pressure block 26 on the mounting plate 1. When the first pressure strip 21 swings downward, it presses against the upper surfaces of the front and rear sides of the flange outer edge 81. The elastic outer pressure block 26 presses inward against the front and rear sidewalls 83 of the battery cover 8, pressing these sidewalls 83 against the inner fixing block 4. The compression deformation of the elastic outer pressure block 26 seals the holes 82 on the sidewalls 83. Preferably, the elastic outer pressure block 26 is made of foam material.

[0025] This airtightness testing device for the battery cover, which eliminates the need for adhesive tape, uses a first pressing mechanism 2 and a second pressing mechanism to press the outer edge 81 of the flange of the battery cover 8 tightly onto the mounting plate 1, creating a sealed environment for airtightness testing. An elastic outer pressure block 26 is added to the first pressure strip 21. By compressing, the elastic outer pressure block 26 deforms and engages with the inner fixing block 4, automatically sealing the holes 82 on the battery cover 8, eliminating the need for manual tape application and thus improving work efficiency.

[0026] The first driving device includes at least one first cylinder 22 and a first swing arm 23; the first cylinder 22 is mounted on the mounting plate 1, and a first connecting seat 24 is fixedly provided on the cylinder seat of the first cylinder 22. The middle part of the first swing arm 23 is rotatably connected to the first connecting seat 24. One end of the first swing arm 23 is fixed to the first pressure bar 21, and the other end is hinged to the piston rod end of the first cylinder 22. Thus, when the first cylinder 22 moves in extension and retraction, the first pressure bar 21 is driven to swing up and down through the first swing arm 23. A plurality of first extrusion heads 25 are also fixedly provided at the bottom of the first pressure bar 21.

[0027] Each of the second pressing mechanisms includes multiple second pressing components 3 spaced apart along the front-back direction; each second pressing component 3 includes a second pressing bar 31, a second cylinder 32, and a second swing arm 33. The second cylinder 32 is mounted on the mounting plate 1, and a second connecting seat 34 is fixedly mounted on the cylinder seat of the second cylinder 32. The middle part of the second swing arm 33 is rotatably connected to the second connecting seat 34. One end of the second swing arm 33 is fixed to the second pressing bar 31, and the other end is hinged to the piston rod end of the second cylinder 32. Thus, when the second cylinder 32 moves in extension and retraction, the second pressing bar 31 is driven to swing up and down through the second swing arm 33. Multiple second extrusion heads 35 are also fixedly mounted at the bottom of the second pressing bar 31.

[0028] On the left and right sides of the mounting plate 1, there are third pressing mechanisms 5 for pressing the top of the battery cover 8. The third pressing mechanism 5 is used to press the top of the battery cover 8 to prevent the top of the battery cover 8 from deforming during the inflation process.

[0029] Each of the third pressing mechanisms 5 includes a third pressure bar 51, an extension plate 52, a third swing arm 53, and a third cylinder 54. The third cylinder 54 is mounted on the mounting plate 1, and a third connecting seat 55 is fixedly provided on the cylinder seat of the third cylinder 54. The middle part of the third swing arm 53 is rotatably connected to the third connecting seat 55. One end of the third swing arm 53 is fixed to the extension plate 52, and the other end is hinged to the piston rod end of the third cylinder 54. The other end of the extension plate 52 is fixed to the third pressure bar 51. Thus, when the third cylinder 54 moves in extension and retraction, it drives the third pressure bar 51 to swing up and down through the third swing arm 53 and the extension plate 52.

[0030] The mounting plate 1 is also fixedly provided with a plurality of inner limiting blocks 6 for pressing against the inner surface of the side wall 83 of the battery cover 8. The inner limiting blocks 6 are mainly used to position the battery cover 8.

[0031] A filling block 7 is also provided in the middle of the mounting plate 1. The filling block 7 is mainly used to simulate the position and space occupied by the battery in the battery cover 8. This makes the airtightness test closer to the actual situation and the test results are better.

[0032] The following is a brief description of the working process and usage method of the cover airtightness testing tape-free device according to the above embodiments:

[0033] The battery cover 8 is placed on the mounting plate 1 and positioned by multiple inner limiting blocks 6. Subsequently, the first pressing mechanism 2, the second pressing mechanism, and the third pressing mechanism 5 act simultaneously or sequentially to press the outer edge 81 of the flange and the top of the battery cover 8 tightly. During the downward swing of the first pressing strip 21, the elastic outer pressing block 26 can press the hole 82 of the battery cover 8 onto the inner fixing block 4, and the elastic outer pressing block 26 can block the hole 82 during the deformation under pressure. The airtightness of the battery cover 8 is then tested by inflation.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them; although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A device for testing the airtightness of a top cover without applying adhesive tape, characterized in that: The device includes a mounting plate (1) and a pressing device disposed on the mounting plate (1) for pressing the outer edge (81) of the flange of the battery cover (8) onto the mounting plate (1); the pressing device includes two sets of first pressing mechanisms (2) disposed on the front and rear sides of the mounting plate (1) for pressing the outer edge (81) of the flange on the front and rear sides, and two sets of second pressing mechanisms disposed on the left and right sides of the mounting plate (1) for pressing the outer edge (81) of the flange on the left and right sides; each of the first pressing mechanisms (2) includes a first pressing strip (21) and a first driving device for driving the first pressing strip (21) to swing up and down, and at least one of the first pressing strips (21) is provided with An elastic external pressure block (26) is provided, which protrudes from the front and rear sides of the first pressure strip (21). An internal fixing block (4) is fixedly provided on the opposite side of the elastic external pressure block (26). When the first pressure strip (21) swings downward, the first pressure strip (21) presses the upper surface of the front and rear sides of the outer edge (81) of the flange. The elastic external pressure block (26) presses the front and rear side walls (83) of the battery cover (8) inward and presses the side walls (83) onto the internal fixing block (4). The holes (82) on the side walls (83) are sealed by the compression deformation of the elastic external pressure block (26).

2. The device for testing the airtightness of a top cover without applying adhesive tape according to claim 1, characterized in that: The first driving device includes at least one first cylinder (22) and a first swing arm (23); the first cylinder (22) is mounted on the mounting plate (1), and a first connecting seat (24) is fixedly provided on the cylinder seat of the first cylinder (22). The middle part of the first swing arm (23) is rotatably connected to the first connecting seat (24). One end of the first swing arm (23) is fixed to the first pressure bar (21), and the other end is hinged to the piston rod end of the first cylinder (22). Thus, when the first cylinder (22) moves in extension and retraction, the first pressure bar (21) is driven to swing up and down through the first swing arm (23). A plurality of first extrusion heads (25) are also fixedly provided at the bottom of the first pressure bar (21).

3. The device for testing the airtightness of a top cover without applying adhesive tape according to claim 1, characterized in that: Each of the second pressing mechanisms includes multiple second pressing components (3) spaced apart in the front-back direction; the second pressing component (3) includes a second pressing bar (31), a second cylinder (32) and a second swing arm (33). The second cylinder (32) is mounted on the mounting plate (1). A second connecting seat (34) is fixedly provided on the cylinder seat of the second cylinder (32). The middle part of the second swing arm (33) is rotatably connected to the second connecting seat (34). One end of the second swing arm (33) is fixed to the second pressing bar (31), and the other end is hinged to the piston rod end of the second cylinder (32). Thus, when the second cylinder (32) moves in extension and retraction, the second pressing bar (31) is driven to swing up and down through the second swing arm (33). Multiple second extrusion heads (35) are also fixedly provided at the bottom of the second pressing bar (31).

4. The device for testing the airtightness of a top cover without applying adhesive tape according to claim 1, characterized in that: On the left and right sides of the mounting plate (1), there are also third pressing mechanisms (5) for pressing against the top of the battery cover (8).

5. The device for testing the airtightness of a top cover without applying adhesive tape according to claim 4, characterized in that: The third pressing mechanism (5) includes a third pressure bar (51), an extension plate (52), a third swing arm (53), and a third cylinder (54). The third cylinder (54) is mounted on the mounting plate (1). A third connecting seat (55) is fixedly provided on the cylinder seat of the third cylinder (54). The middle part of the third swing arm (53) is rotatably connected to the third connecting seat (55). One end of the third swing arm (53) is fixed to the extension plate (52), and the other end is hinged to the piston rod end of the third cylinder (54). The other end of the extension plate (52) is fixed to the third pressure bar (51). Thus, when the third cylinder (54) moves in extension and retraction, it drives the third pressure bar (51) to swing up and down through the third swing arm (53) and the extension plate (52).

6. The device for testing the airtightness of a top cover without applying adhesive tape according to claim 1, characterized in that: The mounting plate (1) is also fixedly provided with a plurality of inner limiting blocks (6) for pressing against the inner surface of the side wall (83) of the battery cover (8).

7. The device for testing the airtightness of a top cover without applying adhesive tape according to claim 1, characterized in that: A filler block (7) is also provided in the middle of the mounting plate (1).

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