Gantry type pneumatic battery box cover airtightness detection device

Abstract

The utility model discloses a gantry type pneumatic battery box cover airtightness detection device comprising a pedestal, a substrate is slidably arranged on the pedestal, the substrate is used for placing a battery box cover to be detected, one end of the pedestal in the length direction is provided with a gantry support, and the upper end of the gantry support is provided with a top pressing assembly. The top pressing assembly is used for tightly pressing a to-be-detected battery box cover on the top of the base plate, a horizontal blocking assembly is horizontally arranged on the base plate, a baffle is arranged at one end of the horizontal blocking assembly, and the baffle can be forced to be close to or away from an observation opening in the side portion of the to-be-detected battery box cover by driving the horizontal blocking assembly. And the observation opening can be blocked. The air tightness detection device has the beneficial effects that through the arranged horizontal plugging assembly, when the top pressing assembly tightly presses the to-be-detected battery box cover on the base plate, the baffle can plug the observation opening, so that a closed space is formed in the to-be-detected battery box cover, and air tightness detection of the to-be-detected battery box cover is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle battery box technology, specifically to a gantry-type pneumatic battery box cover airtightness detection device. Background Technology

[0002] As a crucial component of new energy vehicles, the battery directly provides power, thus its quality directly impacts the overall usability of the vehicle. In terms of physical structure, a new energy battery consists of a battery casing and battery packs stacked within it. To ensure safe and stable operation, the casing's sealing is paramount, primarily determined by the casing cover. Therefore, the battery casing cover must undergo airtightness testing before being put into use.

[0003] In existing technologies, the airtightness testing of battery box covers is mainly carried out by placing them on a testing platform, using a cylinder to press them circumferentially, and finally venting air into the battery box cover. However, the above testing equipment is only suitable for battery box covers without circumferential openings. For battery box covers with observation windows currently on the market, traditional airtightness testing devices cannot meet the requirements. Therefore, there is an urgent need for a testing device that can test battery box covers with observation windows. Utility Model Content

[0004] In view of this, the present invention provides a gantry-type pneumatic battery box cover airtightness detection device, which aims to meet the technical requirements put forward in the background art.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A gantry-type pneumatic battery box cover airtightness testing device includes a base, on which a base plate is slidably disposed along its length. A core seat adapted to the inner cavity of the battery box cover is fixed on the base plate for positioning the battery box cover to be tested. A gantry bracket is provided at one end of the base along its length, and a top pressing component is provided at the upper end of the gantry bracket. When the base plate carrying the battery box cover to be tested moves to below the gantry bracket, the top pressing component can press the battery box cover to be tested tightly against the top of the base plate. The device is characterized in that a horizontal sealing component is installed at one end of the base plate along its sliding direction. The horizontal sealing component has a baffle that can move along the sliding direction of the base plate. When the battery box cover to be tested is positioned on the core seat, the baffle is driven to move along the sliding direction of the base plate, so that the baffle can block the observation port on the side of the battery box cover to be tested.

[0007] With the above structure, by setting up a horizontal sealing component, when the top pressing component presses the battery box cover to be tested tightly onto the substrate, the baffle can block the observation port, thereby forming a sealed space inside the battery box cover to be tested, which facilitates the airtightness test of the battery box cover to be tested.

[0008] Preferably, the horizontal sealing assembly is a first telescopic cylinder horizontally arranged on the base plate. The baffle is fixedly installed at the end of the cylinder rod of the first telescopic cylinder. A sealing gasket is provided on the side of the baffle near the battery box cover to be tested, and the sealing gasket is used to tightly adhere to the side of the battery box cover to be tested. With the above structure, the observation port can be blocked by the first telescopic cylinder, and the sealing gasket ensures the airtightness of the baffle blocking the observation port, thus facilitating the airtightness testing of the battery box cover to be tested.

[0009] Preferably, the substrate has an edge pressing component on one side of the horizontal sealing assembly. This edge pressing component presses the bottom flange of the battery case cover with the observation port onto the substrate. The top pressing component has a vertically downward extending plate, which presses the remaining three bottom flanges of the battery case cover onto the substrate. With this structure, the circumferential bottom flanges of the battery case cover to be tested can be pressed against the top of the substrate, thus facilitating airtightness testing.

[0010] Preferably, the edge pressing assembly includes a vertically arranged second telescopic cylinder, and a pressure plate is provided at the end of the cylinder rod of the second telescopic cylinder. The pressure plate is used to press the bottom edge of the battery box cover with the observation opening onto the substrate. With the above structure, the bottom edge of the battery box cover with the observation opening can be pressed firmly onto the substrate, thereby ensuring the accuracy of the airtightness test.

[0011] Preferably, the top pressing assembly includes a third telescopic cylinder vertically mounted on the top of the gantry bracket. A rectangular cover plate is provided at the lower end of the third telescopic cylinder, allowing it to press firmly against the top of the battery box cover to be tested. An extension plate is formed on the circumferential edge of the rectangular cover plate. With this structure, the rectangular cover plate prevents bulging of the top of the battery box cover during airtightness testing, and the extension plate presses the circumferential edge of the battery box cover tightly against the substrate, thus ensuring more accurate airtightness testing of the battery box cover.

[0012] Preferably, the base has two first slide rails arranged parallel to each other along its length, and a first slider is slidably mounted on each of the first slide rails. The base plate is fixedly mounted on the top of the first slider. A fourth telescopic cylinder is provided on the base along its length, and the cylinder rod end of the fourth telescopic cylinder is fixedly connected to the base plate. With this structure, the base plate can slide on the base, thus facilitating the installation and removal of the battery box cover to be tested.

[0013] Preferably, the edge pressing assembly further includes a second slide rail disposed at the bottom of the substrate, the second slide rail being arranged parallel to the first slide rail, a second slider slidably disposed on the second slide rail, a second telescopic cylinder fixedly disposed on the second slider, and a horizontally arranged fifth telescopic cylinder disposed on the substrate, the cylinder rod end of the fifth telescopic cylinder being connected to the second slider. Driving the fifth telescopic cylinder can force the pressure plate to move horizontally closer to or further away from the battery box cover to be tested. With the above structure, the position of the pressure plate can be adjusted horizontally, ensuring that the pressure plate can stably press the edge of the battery box cover to be tested firmly onto the substrate.

[0014] Preferably, two sets of edge pressing components are provided, and the horizontal sealing component is disposed between the two sets of edge pressing components. With this structure, the bottom edge of the battery case cover with the observation port is completely pressed against the substrate, thereby ensuring the airtightness of the battery case cover.

[0015] Preferably, the core support includes a support block and a support baffle fixedly disposed on the top of the substrate. The support block supports the top of the battery box cover, and the support baffle blocks the observation port on the side of the battery box cover. With this structure, the support block supports the top of the battery box cover to be tested, preventing deformation under pressure, while the support baffle further ensures that the observation port on the side of the battery box cover to be tested is blocked.

[0016] Preferably, limiting blocks are provided on both sides of the substrate in the width direction, and the battery box cover to be tested is disposed between the limiting blocks on both sides. With the above structure, the installation position of the battery box cover to be tested can be limited.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The gantry-type pneumatic battery box cover airtightness testing device provided by this utility model uses a horizontal sealing component. When the top pressing component presses the battery box cover to be tested tightly onto the base plate, the baffle can block the observation port of the battery box cover, thereby forming a sealed space inside the battery box cover to be tested, which facilitates the airtightness testing of the battery box cover to be tested.

[0019] 2. By using the top pressing component and the edge pressing component, the top and bottom circumferential flanges of the battery box cover to be tested can be pressed tightly against the top of the substrate, thereby ensuring the accuracy of the airtightness test data. Attached Figure Description

[0020] Figure 1 A three-dimensional structural diagram of a gantry-type pneumatic battery box cover airtightness testing device;

[0021] Figure 2 This is a schematic diagram of the structure of the battery box cover 17 to be tested;

[0022] Figure 3 This is a schematic diagram of the structure of substrate 2;

[0023] Figure 4 This is a schematic diagram of the structure of base 1;

[0024] Figure 5 This is a structural diagram of the top pressing component A;

[0025] Figure 6 A schematic diagram of the edge pressing component B;

[0026] Figure 7 This is a schematic diagram of the horizontal sealing assembly. Detailed Implementation

[0027] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0028] In this embodiment, the directional terms such as "front," "back," "left," and "right" are all used in conjunction with... Figure 1 Based on the coordinate axes.

[0029] The airtightness testing device described in this embodiment is used for testing... Figure 2 The battery box cover 17 shown is rectangular in shape. It has an observation opening 17a on one side and a flange 17b at the bottom circumferentially. In actual testing, the flange 17b is used to directly contact the top of the substrate 2 and support the entire battery box cover 17.

[0030] like Figure 1As shown, a gantry-type pneumatic battery box cover airtightness testing device includes a base 1, on which a base plate 2 is slidably mounted along its length. A core seat adapted to the inner cavity of a battery box cover 17 to be tested is fixedly mounted on the base plate 2 for positioning the cover 17. A gantry bracket 3 is fixedly mounted at the rear end of the base 1, and a top pressing component A is mounted on the upper end of the gantry bracket 3. When the base plate 2, carrying the battery box cover 17, moves below the gantry bracket 3, the top pressing component A can press the battery box cover 17 tightly against the top of the base plate 2. A horizontal sealing component is mounted at the front end of the base plate 2, and a baffle 4a is fixedly mounted at one end. When the battery box cover 17 is positioned on the core seat, the baffle 4a is driven to move along the sliding direction of the base plate 2, thereby sealing the baffle 4a against the observation port 17a on the side of the battery box cover 17.

[0031] With the horizontal sealing component, when the top pressing component A presses the battery box cover 17 to be tested tightly against the top of the substrate 2, the baffle 4a can block the observation port 17a, thereby facilitating the airtightness test of the battery box cover 17 with the observation port 17a.

[0032] like Figure 6 As shown, in this embodiment, the horizontal sealing assembly is a first telescopic cylinder 4 horizontally arranged at the front of the upper end of the substrate 2. A baffle 4a is fixedly installed at the end of the cylinder rod of the first telescopic cylinder 4. A sealing gasket 14 is fixedly installed on the side of the baffle 4a near the battery box cover 17. The sealing gasket 14 is used to tightly adhere to the side of the battery box cover 17. The sealing gasket 14 ensures that the observation port 17a is sealed more completely, thereby facilitating the airtightness test of the battery box cover 17.

[0033] like Figure 1 and Figure 5 As shown, an edge pressing assembly B is also provided on the upper front side of the substrate 2. The edge pressing assembly B is used to press the flange 17b of the battery box cover 17 with the observation port 17a onto the substrate 2. The top pressing assembly A has a vertically downward extending extension plate 7a, which is used to press the flanges 17b of the remaining three sides of the battery box cover 17 onto the substrate 2. Through the design of the extension plate 7a and the edge pressing assembly B, the flanges 17b of the bottom circumferential direction of the battery box cover 17 can be pressed onto the substrate 2, thus ensuring the accuracy of the airtightness test.

[0034] Specifically, such as Figure 1 and Figure 6 As shown, the edge pressing assembly B includes a second telescopic cylinder 5 vertically mounted on the lower front side of the substrate 2. The cylinder rod of the second telescopic cylinder 5 extends upward through the substrate 2, and a pressure plate 5a is fixedly mounted on its top. The pressure plate 5a is used to press the flange 17b of the battery box cover 17 with the observation port 17a onto the substrate 2.

[0035] Furthermore, the edge pressing assembly B also includes a second slide rail 11 fixedly installed at the bottom front end of the substrate 2. The second slide rail 11 is arranged along the length direction of the base 1. A second slider 12 is slidably installed on the second slide rail 11. A second telescopic cylinder 5 is fixedly installed on the second slider 12. A fifth telescopic cylinder 13 is horizontally installed at the front end of the substrate 2. The cylinder rod end of the fifth telescopic cylinder 13 is connected to the second slider 12. Driving the fifth telescopic cylinder 13 to extend and retract allows the pressure plate 5a to move closer to or further away from the battery box cover 17 to be tested in the front-back direction. By adjusting the position of the pressure plate 5a in the front-back direction, it is ensured that the flange 17b on the side of the battery box cover 17 with the observation port 17a can be pressed tightly onto the substrate 2. In this embodiment, two second slide rails 11 are fixedly installed at the bottom of the substrate 2, and a connecting block 18 is connected between the two second sliders 12. The second telescopic cylinder 5 is fixedly installed at the bottom of the connecting block 18, and the cylinder rod end of the fifth telescopic cylinder 13 is fixedly connected to the connecting block 18. An avoidance groove 2a is also provided at the front end of the substrate 2. The avoidance groove 2a can prevent motion interference between the cylinder rod of the second telescopic cylinder 5 and the substrate 2 when the fifth telescopic cylinder 13 extends or retracts.

[0036] In this embodiment, two sets of edge mounting components B are provided, and the first telescopic cylinder 4 is fixedly installed between the two sets of edge pressing components B. This design further ensures that the flange 17b on the side of the battery box cover 17 with the observation port 17a can be pressed firmly onto the substrate 2, thereby ensuring the accuracy of the airtightness test.

[0037] like Figure 5 As shown, the top pressing assembly A includes a third telescopic cylinder 6 vertically mounted on the top of the gantry bracket 3. A rectangular cover plate 7 is fixedly mounted on the lower end of the third telescopic cylinder 6. The rectangular cover plate 7 can be pressed tightly against the top of the battery box cover 17 to ensure that the top of the battery box cover 17 to be tested will not bulge during the airtightness test. The extension plate 7a is formed on the circumferential edge of the rectangular cover plate 7.

[0038] To ensure that the top of the battery box cover 17 to be tested is evenly pressed by the rectangular cover plate 7, in this embodiment, six third telescopic cylinders 6 are evenly distributed on the top of the gantry bracket 3. Linear bearings 19 are also symmetrically installed on the front and rear sides of the top of the gantry bracket 3, and guide rods 20 are symmetrically installed on the front and rear sides of the top of the rectangular cover plate 7. The guide rods 20 pass through the linear bearings 19, so as to ensure that the rectangular cover plate 7 always moves vertically upward and will not tilt.

[0039] like Figure 4As shown, two first slide rails 8 are arranged parallel to each other along the length of the base 1. A first slider 9 is slidably mounted on each of the first slide rails 8. The base plate 2 is fixedly mounted on the top of the first slider 9. A fourth telescopic cylinder 10 is mounted on the base 1 along its length, positioned between the two first slide rails 8, and the end of the cylinder rod of the fourth telescopic cylinder 10 is fixedly mounted to the bottom of the base plate 2. This design allows the base plate 2 to slide on the base 1.

[0040] like Figure 4 As shown, a limiting pin 15 is fixedly installed at the rear end of the base 1. The limiting pin 15 can limit the sliding position of the substrate 2, thereby ensuring that the top pressing component A can accurately cover the battery box cover 17 to be tested.

[0041] For example Figure 3 As shown, limit blocks 16 are symmetrically installed on the left and right sides of the substrate 2. The battery box cover 17 to be tested is placed between the limit blocks 16 on both sides to ensure that the battery box cover 17 is placed more accurately.

[0042] In this embodiment, the core base includes a support block 21 fixedly disposed on the top of the substrate 2, and a support baffle 22 disposed on the side near the observation port 17a. The support baffle 22 is also provided with a sealing gasket 14 on the side near the observation port 17a. During the actual airtightness test, the top of the battery box cover 17 is supported on the support block 21, and the observation port 17a is clamped between the support baffle 22 and the baffle 4a.

[0043] In addition, a sealing gasket 14 is also provided on the top of the substrate 2, and the flange 17b at the bottom of the battery box cover 17 is supported on the sealing gasket 14, so as to ensure that the battery box cover 17 to be tested can be pressed tightly on the top of the substrate 2, thereby ensuring the accuracy of the airtightness test.

[0044] In this embodiment, a vent hole is provided in the middle of the substrate 2, and the lower end of the vent hole is connected to an air intake device and a measuring device through an air pipe, so as to realize the airtightness detection of the battery box cover 17.

[0045] like Figure 1 As shown, rollers 23 are fixedly installed at the four corners of the bottom of the base 1, which facilitates the movement of the entire airtightness testing device.

[0046] Based on the above structure, the specific operating procedure of the gantry-type pneumatic battery box cover airtightness testing device is as follows:

[0047] In the initial state, the substrate 2 is located at the foremost end of the base 1. The operator places the battery box cover 17 to be tested onto the support block 21 and support baffle 22 of the substrate 2. The limiting block 16 can limit the left and right positions of the battery box cover 17, while the support block 21 and support baffle 22 can limit the front and rear positions of the battery box cover 17. Then, the fourth telescopic cylinder 10 pushes the substrate 2 to slide backward until the rear end of the substrate 2 abuts against the limiting pin 15. Then, the third telescopic cylinder 6 pushes the rectangular cover plate 7 to press on the top of the battery box cover 17 to be tested. The extension plate 7a presses the flanges 17b of the other three sides, except for the side where the observation port 17a is located, against the sealing gasket 14 on the substrate 2. The supporting block 21 can support the top surface of the battery box cover 17 to be tested. Then, the fourth telescopic cylinder 10 pushes the substrate 2 to slide backward until the rear end of the substrate 2 abuts against the limiting pin 15. The four telescopic cylinders 10 push the second telescopic cylinder 5 to move backward to the bottom circumferential edge of the side where the observation port 17a is located; then the second telescopic cylinder 5 retracts, causing the pressure plate 5a to move downward and press the flange 17b of the side where the observation port 17a is located against the sealing gasket 14 on the base plate 2; then the first telescopic cylinder 4 pushes the baffle 4a to move backward until the side of the battery box cover 17 with the observation port 17a is supported between the baffle 4a and the supporting baffle 22. At this time, the observation port 17a is also blocked between the baffle 4a and the supporting baffle 22; finally, air can be vented through the vent hole in the middle of the bottom of the base plate 2 to perform an airtightness test on the battery box cover 17 with the observation port 17a; after the airtightness test is completed, the base plate 2 only needs to be returned to the front end of the base 1 to facilitate the disassembly of the battery box cover 17.

[0048] The combined support between the baffle 4a and the supporting baffle 22 ensures that the observation port 17a can be blocked. The combined design of the extension plate 7a and the pressure plate 5a allows the flange 17b at the bottom of the battery box cover 17 to be pressed tightly against the top of the substrate 2. The rectangular cover plate 7 prevents the top of the battery box cover 17 to be tested from bulging during air tightness testing. Based on the above design, the battery box cover 17 with the observation port 17a can be tested for air tightness.

[0049] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A gantry-type pneumatic battery box cover airtightness testing device, comprising a base (1), a base plate (2) slidably disposed on the base (1) along its length direction, a core seat adapted to the inner cavity of the battery box cover fixed on the base plate (2) for positioning and placing the battery box cover to be tested, a gantry bracket (3) provided at one end of the base (1) along its length direction, a top pressing component (A) provided at the upper end of the gantry bracket (3), wherein when the base plate (2) carrying the battery box cover to be tested moves to below the gantry bracket (3), the top pressing component (A) can press the battery box cover to be tested tightly against the top of the base plate (2), characterized in that: A horizontal sealing assembly is installed at one end of the substrate (2) in the sliding direction. The horizontal sealing assembly has a baffle (4a) that can move along the sliding direction of the substrate (2). When the battery box cover to be tested is positioned on the core seat, the baffle (4a) is driven to move along the sliding direction of the substrate (2), so that the baffle (4a) can block the observation port on the side of the battery box cover to be tested.

2. The gantry-type pneumatic battery box cover airtightness detection device according to claim 1, characterized in that: The horizontal sealing assembly is a first telescopic cylinder (4) arranged horizontally on the substrate (2). The baffle (4a) is fixedly installed at the end of the cylinder rod of the first telescopic cylinder (4). A sealing gasket (14) is provided on the side of the baffle (4a) near the battery box cover to be tested. The sealing gasket (14) is used to tightly adhere to the side of the battery box cover to be tested.

3. The gantry-type pneumatic battery box cover airtightness detection device according to claim 1, characterized in that: The substrate (2) is provided with an edge pressing component (B) on one side of the horizontal sealing component. The edge pressing component (B) is used to press the bottom flange of the side of the battery box cover with the observation port onto the substrate (2). The top pressing assembly (A) has a vertically downward extending extension plate (7a) for pressing the bottom flanges of the remaining three sides of the battery box cover onto the base plate (2).

4. The gantry-type pneumatic battery box cover airtightness detection device according to claim 3, characterized in that: The edge pressing assembly (B) includes a second telescopic cylinder (5) vertically arranged, and a pressure plate (5a) is provided at the end of the cylinder rod of the second telescopic cylinder (5). The pressure plate (5a) is used to press the bottom edge of the side of the battery box cover with the observation port onto the base plate (2).

5. The gantry-type pneumatic battery box cover airtightness detection device according to claim 3, characterized in that: The top pressing assembly (A) includes a third telescopic cylinder (6) vertically disposed on the top of the gantry bracket (3). A rectangular cover plate (7) is disposed at the lower end of the third telescopic cylinder (6). The rectangular cover plate (7) can be pressed against the top of the battery box cover to be tested. The extension plate (7a) is formed on the circumferential edge of the rectangular cover plate (7).

6. The gantry-type pneumatic battery box cover airtightness detection device according to claim 4, characterized in that: Two first slide rails (8) are arranged parallel to each other along the length of the base (1), and a first slider (9) is slidably disposed on each of the first slide rails (8). The base plate (2) is fixedly disposed on the top of the first slider (9). The base (1) is provided with a fourth telescopic cylinder (10) along its length direction, and the cylinder rod end of the fourth telescopic cylinder (10) is fixedly connected to the base plate (2).

7. The gantry-type pneumatic battery box cover airtightness detection device according to claim 6, characterized in that: The edge pressing assembly (B) further includes a second slide rail (11) disposed at the bottom of the substrate (2). The second slide rail (11) is arranged parallel to the first slide rail (8). A second slider (12) is slidably disposed on the second slide rail (11). A second telescopic cylinder (5) is fixed on the second slider (12). A fifth telescopic cylinder (13) is disposed horizontally on the substrate (2). The cylinder rod end of the fifth telescopic cylinder (13) is connected to the second slider (12). Driving the fifth telescopic cylinder (13) can force the pressure plate (5a) to move closer to or further away from the battery box cover to be tested in the horizontal direction.

8. The gantry-type pneumatic battery box cover airtightness detection device according to claim 7, characterized in that: The edge pressing assembly (B) is provided in two sets, and the horizontal sealing assembly is disposed between the two sets of the edge pressing assembly (B).

9. The gantry-type pneumatic battery box cover airtightness detection device according to claim 1, characterized in that: The core base includes a support block (21) and a support baffle (22) fixedly disposed on the top of the substrate (2). The support block (21) is used to support the top of the battery box cover, and the support baffle (22) is used to block the observation port on the side of the battery box cover.

10. The gantry-type pneumatic battery box cover airtightness detection device according to claim 1, characterized in that: The substrate (2) has limiting blocks (16) on both sides in the width direction, and the battery box cover to be tested is disposed between the limiting blocks (16) on both sides.

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