New energy automobile airtight tool pressing device

Abstract

The utility model relates to the technical field of airtight tool pressing, and discloses a new energy automobile airtight tool pressing device which comprises a pressing frame connected to an airtight detection tool and a pressing plate connected to the pressing frame, and a plurality of second sliding strips are fixedly connected to the top face of the pressing plate. The pressing plate can be connected with the pressing frame in a sliding and inserting mode through the cooperation of the second sliding strip and the second sliding groove, the end of the pressing plate can be vertically limited through the arrangement of the extrusion plate, and disassembly and assembly can be simpler and more convenient through the inserting mode; through the arrangement of the U-shaped plate and the extension plate, after the extrusion plate descends to block the compression plate, the U-shaped plate can be pushed to slide on the top surface of the compression frame, so that the extension plate at the end part of the U-shaped plate limits the top end of the extrusion plate, and the extrusion plate cannot move when the compression frame repeatedly extrudes the battery pack shell.

Description

Technical Field

[0001] This utility model relates to the field of airtight tooling clamping technology, specifically an airtight tooling clamping device for new energy vehicles. Background Technology

[0002] New energy vehicles mainly rely on new energy batteries for range. During the production process of the battery pack, the airtightness of the battery pack shell needs to be tested. Therefore, a new energy battery pack airtightness testing fixture is used. The clamping device in the airtightness testing fixture is the core component, which mainly plays the role of clamping the battery pack.

[0003] For example, patent publication number CN222800295U discloses a battery pack airtightness testing device, including a support platform for supporting the battery pack to be tested. The support platform has a mounting part on one side and a locking buckle on the other side. A pressure plate has one side connected to the mounting part via a rotating shaft, the extension direction of which is parallel to the surface of the support platform. The other side of the pressure plate has a support part for abutting against the support platform and being locked by the locking buckle. When the support part is locked by the locking buckle, the gap between the pressure plate and the support platform is the thickness of the battery pack to be tested.

[0004] While the aforementioned device solves the problem of bulging and deformation of the battery pack cover, it still has the following drawbacks: The clamping plate, through precise cooperation with the support platform, serves to restrain the battery pack cover and prevent inflation bulging. However, during use, the clamping plate is prone to localized wear, commonly seen at the edges or center, and sometimes also due to localized burrs. Because the clamping plate is connected to the cover frame using multiple bolts, replacement is cumbersome and affects maintenance efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a new energy vehicle airtight tooling clamping device, which makes the disassembly of the clamping plate simpler.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for an airtightness testing fixture for new energy vehicles, comprising a clamping frame connected to an airtightness testing fixture and a clamping plate connected to the clamping frame, wherein a plurality of second sliding strips are fixedly connected to the top surface of the clamping plate, and a second sliding groove corresponding to the second sliding strips is provided on the bottom surface of the clamping frame, and a pressing plate for limiting the clamping plate is slidably connected to the end of the clamping frame, wherein the inner wall of the pressing plate abuts against the end of the clamping frame.

[0007] Furthermore, two symmetrically arranged top blocks are fixedly connected to the top surface of the end of the clamping frame. A third sliding groove is provided in the top block, which extends to the top surface of the clamping frame. A third slider that is fixedly connected to the extrusion plate is slidably connected in the third sliding groove.

[0008] Furthermore, the top surface of the clamping frame is connected to a limiting structure for laterally limiting the extrusion plate. The limiting structure includes a U-shaped plate, which is slidably connected to the clamping frame. The vertical plate of the U-shaped plate is fixedly connected to two protruding plates for limiting the movement of the extrusion plate. The bottom surface of the protruding plates abuts against the outer wall of the extrusion plate. Two symmetrically arranged threaded rods are threadedly connected to the U-shaped plate, and one end of the threaded rod passes through the U-shaped plate and is threadedly connected to the clamping frame.

[0009] Furthermore, the bottom surfaces of the two horizontal plates of the U-shaped plate are fixedly connected to the first sliders, and the top surface of the clamping frame is provided with a first groove corresponding to the first sliders.

[0010] Furthermore, the inner walls of the two vertical rods of the clamping frame are connected to an ejection assembly for pushing the clamping plate. The ejection assembly includes a mounting block and a push plate. The inner walls of the two vertical rods of the clamping frame are fixedly connected to mounting blocks. A rotating shaft is rotatably connected inside the mounting blocks. A push plate is fixedly connected to the bottom of the rotating shaft. The end of the push plate abuts against the bottom end of the clamping plate. A spring is fixedly connected to the bottom surface of the third slider. The other end of the spring is fixedly connected to the bottom surface of the third slide groove. A pusher for pushing the push plate is fixedly connected to the outer wall of the U-shaped plate.

[0011] Furthermore, the pushing component includes a rack plate and a gear, and the inner walls of the two vertical plates of the U-shaped plate are fixedly connected with rack plates, and the top of the rotating shaft is fixedly connected with a gear that meshes with the rack plate.

[0012] Furthermore, a handle is fixedly connected to the top surface of the U-shaped plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model, through the cooperation of the second slide bar and the second slide groove, allows the pressing plate to be connected to the pressing frame by sliding insertion. The setting of the squeezing plate can vertically limit the end of the pressing plate. The insertion method makes disassembly and installation simpler and more convenient.

[0015] 2. With the U-shaped plate and the protruding plate, this utility model allows the U-shaped plate to slide on the top surface of the clamping frame after the extrusion plate descends and blocks the pressing plate. This causes the protruding plate at the end of the U-shaped plate to limit the top of the extrusion plate, so that the extrusion plate will not move when the clamping frame repeatedly extrudes the battery pack housing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the clamping frame and clamping plate of this utility model;

[0018] Figure 3This is a partial three-dimensional structural diagram of the clamping frame, clamping plate, and push plate of this utility model;

[0019] Figure 4 This is a three-dimensional cross-sectional structural diagram of the top block of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the clamping frame, clamping plate, and extrusion plate of this utility model;

[0021] Figure 6 This is a three-dimensional cross-sectional structural diagram of the U-shaped plate of this utility model;

[0022] Figure 7 This is a three-dimensional structural diagram of the push plate, rotating shaft, and mounting block of this utility model.

[0023] In the diagram: 1. Air tightness testing fixture; 2. Clamping frame; 3. Clamping plate; 4. Handle; 5. Extrusion plate; 6. Top block; 7. U-shaped plate; 8. Threaded rod; 9. Extending plate; 10. Rotating shaft; 11. Rack plate; 12. First slide groove; 13. Gear; 14. Second slide groove; 15. Push plate; 16. Mounting block; 17. Second slide bar; 18. Third slider; 19. Third slide groove; 20. Spring; 21. First slider. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] like Figures 1 to 7 As shown, a new energy vehicle airtightness tooling clamping device includes a clamping frame 2 connected to an airtightness testing tooling 1 and a clamping plate 3 connected to the clamping frame 2. A plurality of second slide bars 17 are fixedly connected to the top surface of the clamping plate 3. A second slide groove 14 corresponding to the second slide bars 17 is opened on the bottom surface of the clamping frame 2. A pressing plate 5 for limiting the clamping plate 3 is slidably connected to the end of the clamping frame 2. The inner wall of the pressing plate 5 abuts against the end of the clamping frame 2.

[0026] like Figure 1 As shown, the airtightness tooling clamping device for new energy vehicles in this utility model is structurally similar to existing battery pack airtightness testing equipment. For example, patent publication number CN222800295U discloses a battery pack airtightness testing device. The main improvement of this utility model is that it makes the disassembly of the clamping plate simpler. Figures 1 to 7As shown, when the pressure plate 3 needs to be replaced in the new energy vehicle airtight tooling clamping device of this utility model, it is only necessary to move the extrusion plate 5 upward so that the extrusion plate 5 slides upward, exposing the pressure plate 3 and the second slide bar 17. Then, the pressure plate 3 can be pushed out of the clamping frame 2. When sliding out, the second slide bar 17 slides in the second slide groove 14. Since the cross-section of the second slide bar 17 and the second slide groove 14 is set as a dovetail slider, it can be ensured that the pressure plate 3 will not fall off after sliding. The extrusion plate 5 can squeeze the end of the pressure plate 3 after sliding and merging with the clamping frame 2, which can ensure that the pressure plate 3 will not be loosened from the clamping frame 2.

[0027] The cooperation of the second slide bar 17 and the second slide groove 14 allows the clamping plate 3 to be connected to the clamping frame 2 by sliding insertion. The setting of the squeezing plate 5 can vertically limit the end of the clamping plate 3. The insertion method makes disassembly and installation simpler and more convenient.

[0028] like Figure 2 , Figure 4 and Figure 5 As shown, two symmetrically arranged top blocks 6 are fixedly connected to the top surface of the end of the clamping frame 2. A third sliding groove 19 is provided in the top block 6. The third sliding groove 19 extends to the top surface of the clamping frame 2. A third slider 18, which is fixedly connected to the extrusion plate 5, is slidably connected in the third sliding groove 19.

[0029] Specifically, when the extrusion plate 5 is sliding, it drives the third slider 18 to slide within the third slide groove 19, which ensures the stability of the extrusion plate 5 when it is vertically raised and lowered.

[0030] like Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, the top surface of the clamping frame 2 is connected to a limiting structure for lateral limiting of the extrusion plate 5. The limiting structure includes a U-shaped plate 7, which is slidably connected to the clamping frame 2. The vertical plate of the U-shaped plate 7 is fixedly connected to two protruding plates 9 for limiting the movement of the extrusion plate 5. The bottom surface of the protruding plates 9 abuts against the outer wall of the extrusion plate 5. Two symmetrically arranged threaded rods 8 are threadedly connected to the U-shaped plate 7. One end of the threaded rod 8 passes through the U-shaped plate 7 and is threadedly connected to the clamping frame 2.

[0031] Specifically, to ensure the vertical stability of the extrusion plate 5, after the extrusion plate 5 descends and seals the clamping plate 3, the U-shaped plate 7 can be pushed to slide on the top surface of the clamping frame 2, so that the protruding plate 9 at the end of the U-shaped plate 7 limits the top of the extrusion plate 5. In this way, the extrusion plate 5 will not move when the clamping frame 2 repeatedly squeezes the battery pack housing. Subsequently, the threaded rod 8 passes through the limiting extrusion plate 5 and is fastened to the clamping frame 2, which stably ensures the stability of the U-shaped plate 7. Although the threaded rod 8 is used for fixing here, it reduces the cumbersome operation of disassembling multiple screws. Only two threaded rods 8 need to be rotated. The rotation of the threaded rods 8 does not require the use of tools for disassembly, which also achieves simple disassembly.

[0032] like Figure 6 and Figure 7 As shown, the bottom surfaces of the two horizontal plates of the U-shaped plate 7 are fixedly connected with the first slider 21, and the top surface of the clamping frame 2 is provided with the first groove 12 corresponding to the first slider 21.

[0033] Specifically, when the U-shaped plate 7 moves, the two first sliders 21 on its bottom surface will slide in the first sliding groove 12 on the top surface of the clamping frame 2. This setting can make the sliding of the U-shaped plate 7 stable.

[0034] like Figure 3 , Figure 6 and Figure 7 As shown, the inner walls of the two vertical rods of the clamping frame 2 are connected to a push-out assembly for pushing the clamping plate 3. The push-out assembly includes a mounting block 16 and a push plate 15. Mounting blocks 16 are fixedly connected to the inner walls of both vertical rods of the clamping frame 2. A rotating shaft 10 is rotatably connected inside the mounting block 16. The bottom of the rotating shaft 10 is fixedly connected to the push plate 15, and the end of the push plate 15 abuts against the bottom end of the clamping plate 3. A spring 20 is fixedly connected to the bottom surface of the third slider 18, and the other end of the spring 20 is fixedly connected to the bottom surface of the third slide groove 19. A pusher for pushing the push plate 15 is fixedly connected to the outer wall of the U-shaped plate 7. The spring can be made of high-carbon steel, high-carbon alloy steel, or alloy spring steel, etc. High-strength spring steel is selected to ensure that it does not deform after multiple lifting and lowering operations.

[0035] Specifically, to facilitate the easy separation of the clamping plate 3 from the clamping frame 2, when the U-shaped plate 7 retracts, causing the extension plate 9 to separate from the pressing plate 5, the pushing component moves simultaneously with the U-shaped plate 7, causing the rotating shaft 10 to rotate. As the rotating shaft 10 rotates, it drives the push plate 15 to rotate inward. While the U-shaped plate 7 slides, the extension plate 9 and the pressing plate 5 are no longer restricted. Under the elastic potential energy, the spring 20 at the bottom of the third slider 18 on the pressing plate 5 pops the pressing plate 5 upward. At this time, the pushing component acts, causing the rotating shaft 10 to rotate, which in turn rotates the push plate 15, pushing the clamping plate 3 forward from the rear end. This makes the removal of the clamping plate 3 convenient.

[0036] The spring 20 can be made of high carbon steel, high carbon alloy steel or alloy spring steel, etc., to ensure that the spring 20 does not deform after multiple lifting and lowering operations.

[0037] like Figure 6 and Figure 7 As shown, the pusher includes a rack plate 11 and a gear 13. The rack plate 11 is fixedly connected to the inner walls of the two vertical plates of the U-shaped plate 7, and the gear 13 that meshes with the rack plate 11 is fixedly connected to the top of the rotating shaft 10.

[0038] Specifically, when the U-shaped plate 7 moves, the protruding plate 9 disengages from the pressing plate 5. The pressing plate 5 pops upward under the action of the spring 20, causing the clamping plate 3 to lose its restriction. Then, as the U-shaped plate 7 continues to move, it drives the rack plate 11 to move and mesh with the gear 13. The gear 13 drives the rotating shaft 10 to rotate in the mounting block 16, which drives the push plate 15 to rotate inward and push the clamping plate 3. Since the clamping plate 3 has lost the vertical restriction of the pressing plate 5, it can be pushed out, making it easier to remove the clamping plate 3.

[0039] like Figure 2 As shown, a handle 4 is fixedly connected to the top surface of the U-shaped plate 7. The handle 4 makes it easy for people to pick up and remove the U-shaped plate 7.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A clamping device for an airtightness testing fixture for new energy vehicles, comprising a clamping frame (2) connected to an airtightness testing fixture (1) and a clamping plate (3) connected to the clamping frame (2), characterized in that, The top surface of the pressing plate (3) is fixedly connected with a plurality of second slide bars (17), and the bottom surface of the pressing frame (2) is provided with a second slide groove (14) corresponding to the second slide bars (17). The end of the pressing frame (2) is slidably connected with a pressing plate (5) for limiting the pressing plate (3), and the inner wall of the pressing plate (5) abuts against the end of the pressing frame (2).

2. The airtight tooling clamping device for new energy vehicles according to claim 1, characterized in that, The top surface of the end of the clamping frame (2) is fixedly connected to two symmetrically arranged top blocks (6). A third sliding groove (19) is provided in the top block (6). The third sliding groove (19) extends to the top surface of the clamping frame (2). A third slider (18) fixedly connected to the extrusion plate (5) is slidably connected in the third sliding groove (19).

3. A new energy vehicle airtight tooling clamping device according to claim 1 or 2, characterized in that, The top surface of the clamping frame (2) is connected to a limiting structure for lateral limiting of the extrusion plate (5). The limiting structure includes a U-shaped plate (7), which is slidably connected to the clamping frame (2). The vertical plate of the U-shaped plate (7) is fixedly connected to two protruding plates (9) for limiting the movement of the extrusion plate (5). The bottom surface of the protruding plate (9) abuts against the outer wall of the extrusion plate (5). Two symmetrically arranged threaded rods (8) are threadedly connected to the U-shaped plate (7). One end of the threaded rod (8) passes through the U-shaped plate (7) and is threadedly connected to the clamping frame (2).

4. The airtight tooling clamping device for new energy vehicles according to claim 3, characterized in that, The bottom surfaces of the two horizontal plates of the U-shaped plate (7) are fixedly connected with the first slider (21), and the top surface of the clamping frame (2) is provided with the first groove (12) corresponding to the first slider (21).

5. The airtight tooling clamping device for new energy vehicles according to claim 3, characterized in that, The inner walls of the two vertical rods of the clamping frame (2) are connected to a push assembly for pushing the clamping plate (3). The push assembly includes a mounting block (16) and a push plate (15). The inner walls of the two vertical rods of the clamping frame (2) are fixedly connected to the mounting block (16). A rotating shaft (10) is rotatably connected inside the mounting block (16). The bottom of the rotating shaft (10) is fixedly connected to the push plate (15). The end of the push plate (15) abuts against the bottom end of the clamping plate (3). The bottom surface of the third slider (18) is fixedly connected to a spring (20). The other end of the spring (20) is fixedly connected to the bottom surface of the third slide groove (19). The outer wall of the U-shaped plate (7) is fixedly connected to a pusher for pushing the push plate (15).

6. The airtight tooling clamping device for new energy vehicles according to claim 4, characterized in that, The inner walls of the two vertical rods of the clamping frame (2) are connected to a push assembly for pushing the clamping plate (3). The push assembly includes a mounting block (16) and a push plate (15). The inner walls of the two vertical rods of the clamping frame (2) are fixedly connected to the mounting block (16). A rotating shaft (10) is rotatably connected inside the mounting block (16). The bottom of the rotating shaft (10) is fixedly connected to the push plate (15). The end of the push plate (15) abuts against the bottom end of the clamping plate (3). The bottom surface of the third slider (18) is fixedly connected to a spring (20). The other end of the spring (20) is fixedly connected to the bottom surface of the third slide groove (19). The outer wall of the U-shaped plate (7) is fixedly connected to a pusher for pushing the push plate (15).

7. A new energy vehicle airtight tooling clamping device according to claim 5 or 6, characterized in that, The pusher includes a rack plate (11) and a gear (13). The rack plate (11) is fixedly connected to the inner walls of the two vertical plates of the U-shaped plate (7). The top of the rotating shaft (10) is fixedly connected to the gear (13) that meshes with the rack plate (11).

8. The airtight tooling clamping device for new energy vehicles according to claim 3, characterized in that, A handle (4) is fixedly connected to the top surface of the U-shaped plate (7).

9. A new energy vehicle airtight tooling clamping device according to claim 4, 5 or 6, characterized in that, A handle (4) is fixedly connected to the top surface of the U-shaped plate (7).

10. A new energy vehicle airtight tooling clamping device according to claim 7, characterized in that, A handle (4) is fixedly connected to the top surface of the U-shaped plate (7).

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