Battery cover plate explosion-proof valve welding tool

Abstract

The utility model discloses a battery cover plate explosion -proof valve welding frock belongs to new energy battery manufacturing equipment field. Including frock base plate, vacuumizing module and spacing adjustment module, vacuumizing module detachable fixed mounting in the middle of frock base plate, spacing adjustment module adjustable setting on frock base plate, spacing adjustment module is used for fixing the battery cover plate of the explosion -proof valve of waiting to weld on frock base plate, the placement groove of placing explosion -proof valve has at vacuumizing module top, still be provided with the vacuum passage of intercommunication with placement groove on vacuumizing module, vacuum passage is connected with the vacuum generator of outside through the gas -connection pipe. The utility model can realize to the full coverage adaptation of multiple size, multiple position explosion -proof valve, and the replacement of vacuumizing module is convenient and fast, and the change type efficiency is promoted several times or even ten times or more, and it is very suitable for the flexible production mode of multiple varieties, small batch, and the production line switching is nimble and quick.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery manufacturing equipment technology, specifically to a welding fixture for a battery cover explosion-proof valve. Background Technology

[0002] In the production process of new energy batteries (such as square lithium batteries, fuel cells, and energy storage batteries), explosion-proof valves (or safety valves) are usually welded onto the metal cover plates to release pressure and ensure safety when the internal pressure of the battery rises abnormally. Welding explosion-proof valves usually needs to be carried out in a vacuum environment (such as laser welding) to prevent air from interfering with the welding quality and to ensure sealing.

[0003] Existing explosion-proof valve welding fixtures can only accommodate explosion-proof valves of a single size and location. When producing different models of battery covers (with different explosion-proof valve sizes and locations), it is necessary to replace the entire upper mold part of the fixture or even the entire fixture, which is costly and time-consuming, severely restricting production efficiency and flexibility. Utility Model Content

[0004] This utility model provides a welding fixture for explosion-proof valves on battery covers, which can solve the problems of poor versatility and long changeover time in the existing explosion-proof valve welding fixtures.

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

[0006] A welding fixture for a battery cover explosion-proof valve includes a fixture base plate, a vacuum module, and a limit adjustment module. The vacuum module is detachably and fixedly installed in the middle of the fixture base plate. The limit adjustment module is adjustablely disposed on the fixture base plate and is used to fix the battery cover plate of the explosion-proof valve to be welded on the fixture base plate. The top of the vacuum module has a placement groove for placing the explosion-proof valve. The vacuum module also has a vacuum channel communicating with the placement groove. The vacuum channel is connected to an external vacuum generator through a gas inlet pipe.

[0007] As a further embodiment of this utility model: the vacuum module includes a convex plate, the placement groove is opened on the top of the convex plate, and the vacuum channel extends from the bottom of the placement groove to the side of the convex plate.

[0008] As a further embodiment of this utility model: mounting holes are respectively provided on both sides of the convex plate, and the convex plate is fixedly installed on the top middle of the tooling base plate through the mounting holes.

[0009] As a further embodiment of this utility model: the limiting adjustment module includes two sets of limiting members symmetrically arranged on both sides of the vacuum module.

[0010] As a further embodiment of this utility model: the limiting member includes a front limiting block, a rear limiting block and a side limiting block. The front limiting block and the rear limiting block are slidably disposed in a vertical groove on the tooling base plate, and the side limiting block is slidably disposed in a horizontal groove on the tooling base plate. The bottom of the front limiting block, the rear limiting block and the side limiting block are all rotatably provided with limiting screws.

[0011] As a further embodiment of this utility model: the front limiting block, the rear limiting block and the side limiting block are provided with limiting steps on the top of one side of the vacuum module.

[0012] As a further embodiment of this utility model: the horizontal slide groove and the vertical slide groove intersect at a cross, with the intersection point close to the vacuum module.

[0013] As a further embodiment of this utility model: the limiting screw includes a screw body, a metal washer and a rubber ring, wherein the metal washer and the rubber ring are both sleeved on the screw body.

[0014] As a further aspect of this utility model: the diameter of the metal gasket and the rubber ring is greater than the width of the transverse groove and the vertical groove.

[0015] As a further embodiment of this utility model: the tooling substrate is provided with a plurality of screw holes evenly distributed on it, and the tooling substrate is fixedly mounted on the welding equipment table through the screw holes.

[0016] The beneficial effects of this utility model are:

[0017] This utility model's vacuum module features a detachable and replaceable design, allowing for quick replacement of the corresponding specification vacuum module based on the size and position of the battery cover's explosion-proof valve, without requiring a complete change of tooling or reprocessing. Combined with the matrix-style adjustable design of the limit adjustment module, the positioning of the battery cover on the tooling base plate can be flexibly adjusted, achieving full coverage adaptation to explosion-proof valves of various sizes and positions. The vacuum module is easy and quick to replace, increasing changeover efficiency by several times or even more than ten times, making it highly suitable for flexible production modes with multiple varieties and small batches, and enabling flexible and rapid production line switching. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a top view schematic diagram of a welding fixture structure for an explosion-proof valve on a battery cover, according to this utility model.

[0020] Figure 2 This is an exploded view of the welding fixture structure for an explosion-proof valve on a battery cover, according to this utility model.

[0021] Figure 3This is a schematic diagram of the side limiting block structure;

[0022] Figure 4 yes Figure 2 Front view of the structure;

[0023] Figure 5 This is a front view schematic diagram of the limit screw structure.

[0024] In the diagram: 1. Tooling base plate; 101. Screw hole; 2. Vacuum module; 201. Convex plate; 202. Placement groove; 203. Vacuum channel; 204. Mounting hole; 3. Limit adjustment module; 301. Front limit block; 302. Rear limit block; 303. Side limit block; 304. Vertical slide groove; 305. Horizontal slide groove; 306. Limit step; 307. Screw body; 308. Metal gasket; 309. Rubber ring. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figure 1-5 As shown, this utility model embodiment provides a welding fixture for a battery cover explosion-proof valve, including a fixture base plate 1, a vacuum module 2, and a limit adjustment module 3.

[0029] Please see Figure 1As shown, the tooling base plate 1 serves as the mounting foundation for the entire tooling and is typically fixed to the workbench of the welding equipment. Specifically, four screw holes 101 are evenly spaced on the tooling base plate 1, allowing it to be fixedly mounted to the workbench surface. The vacuum module 2 is detachably and fixedly mounted in the middle of the tooling base plate 1. The top of the vacuum module 2 has a placement slot 202 for placing an explosion-proof valve, and a vacuum channel 203 communicating with the placement slot 202 is also provided on the vacuum module 2. The vacuum channel 203 is connected to an external vacuum generator via a gas inlet pipe. Different models of battery covers correspond to different specifications of vacuum modules 2. The appropriate specification of vacuum module 2 can be quickly replaced according to the size and position of the explosion-proof valve, without requiring a complete change of the tooling. This is highly suitable for flexible production modes involving multiple varieties and small batches, allowing for flexible and rapid production line switching. The limit adjustment module 3 is adjustablely mounted on the tooling base plate 1. The limit adjustment module 3 is used to fix the battery cover plate of the explosion-proof valve to be welded on the tooling base plate 1. The limit adjustment module 3 can be adjusted in real time according to different models of battery cover plates, so that the tooling has better versatility.

[0030] Please see Figure 2 As shown, the vacuum module 2 includes a convex plate 201, a placement groove 202 on the top of the convex plate 201, and a vacuum channel 203 extending from the bottom of the placement groove 202 to the side of the convex plate 201. The vacuum channel 203 on the side of the convex plate 201 is connected to an external vacuum generator via a gas inlet pipe. After the explosion-proof valve is placed in the placement groove 202, the vacuum generator creates a negative pressure in the placement groove 202 through the vacuum channel 203, adsorbing the explosion-proof valve into the placement groove 202, preventing the placement groove 202 from shifting during welding and improving the welding effect. Mounting holes 204 are provided on both sides of the convex plate 201. The convex plate 201 is fixedly mounted to the top center of the tooling base plate 1 through the mounting holes 204. When the vacuum module 2 needs to be replaced, only the screws in the mounting holes 204 need to be removed. The replacement of the vacuum module 2 is convenient and quick, improving the changeover efficiency by several times or even more than ten times compared to the traditional replacement of the entire upper mold (15-30 minutes) or reprocessing.

[0031] Please see Figure 2As shown, the limit adjustment module 3 includes two sets of limit components symmetrically arranged on both sides of the vacuum module 2. The limit components include a front limit block 301, a rear limit block 302, and a side limit block 303. The front limit block 301 and rear limit block 302 are slidably disposed within a vertical groove 304 on the tooling base plate 1, while the side limit block 303 is slidably disposed within a horizontal groove 305 on the tooling base plate 1. The horizontal groove 305 and the vertical groove 304 intersect at a cross point, with the intersection point close to the vacuum module 2. Limit screws are rotatably provided at the bottom of the front limit block 301, rear limit block 302, and side limit block 303. Loosening the limit screws allows the front limit block 301 and rear limit block 302 to slide back and forth along the vertical groove 304, and the side limit block 303 to move left and right along the horizontal groove 305. This allows for real-time adjustment according to different battery cover models, meeting the requirements of tooling versatility.

[0032] Further, please refer to Figure 3 As shown, the front limiting block 301, rear limiting block 302, and side limiting block 303 have limiting steps 306 on the top of one side of the vacuum module 2. When the battery cover is fixed in place, the edge of the battery cover is tightly attached to the limiting step 306, so that the two sets of front limiting blocks 301, rear limiting blocks 302, and side limiting blocks 303 can clamp and fix the battery cover, improving the stability of the battery cover and ensuring the quality of subsequent welding.

[0033] Please see Figure 5 As shown, the limiting screw includes a screw body 307, a metal washer 308, and a rubber ring 309. Both the metal washer 308 and the rubber ring 309 are fitted onto the screw body 307. The diameters of the metal washer 308 and the rubber ring 309 are larger than the widths of the transverse groove 305 and the vertical groove 304. After the front limiting block 301, the rear limiting block 302, and the side limiting block 303 have moved to their appropriate positions, the screw body 307 is tightened. The screw body 307 passes through the corresponding transverse groove 305 and the vertical groove 304 and extends into the corresponding front limiting block 301, rear limiting block 302, and side limiting block 303 until the screw body 307 is tightened. The metal washer 308 and the rubber ring 309 press against the bottom of the tooling base plate 1, thereby fixing the front limiting block 301, rear limiting block 302, and side limiting block 303 in their corresponding positions.

[0034] The working principle of this utility model:

[0035] Based on the size and position of the explosion-proof valve on the battery cover to be welded, select a matching vacuum module 2 and fix the vacuum module 2 to the corresponding position on the tooling base plate 1. Place the battery cover to be welded on the tooling base plate 1, ensuring that the installation position of the explosion-proof valve on the battery cover is aligned with the placement groove 202 of the vacuum module 2. Then adjust the position of the limit adjustment module 3 to limit and fix the battery cover on the tooling base plate 1. Next, place the explosion-proof valve into the placement groove 202, start the external vacuum generator, and adsorb and fix the battery cover in the placement groove 202, and then welding can be performed.

[0036] When it is necessary to weld a battery cover of another model, simply remove the vacuum module 2 and replace it with another corresponding vacuum module 2.

[0037] The preferred embodiments of this utility model have been described in detail above and should not be considered as limiting the scope of this utility model. All equivalent changes and improvements made within the scope of the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A welding fixture for an explosion-proof valve on a battery cover, characterized in that: The assembly includes a tooling base plate (1), a vacuum module (2), and a limit adjustment module (3). The vacuum module (2) is detachably and fixedly installed in the middle of the tooling base plate (1). The limit adjustment module (3) is adjustablely set on the tooling base plate (1). The limit adjustment module (3) is used to fix the battery cover plate of the explosion-proof valve to be welded on the tooling base plate (1). The top of the vacuum module (2) has a placement groove (202) for placing the explosion-proof valve. The vacuum module (2) also has a vacuum channel (203) communicating with the placement groove (202). The vacuum channel (203) is connected to an external vacuum generator through a gas inlet pipe.

2. The welding fixture for a battery cover explosion-proof valve according to claim 1, characterized in that: The vacuum module (2) includes a convex plate (201), the placement groove (202) is opened on the top of the convex plate (201), and the vacuum channel (203) extends from the bottom of the placement groove (202) to the side of the convex plate (201).

3. The welding fixture for a battery cover explosion-proof valve according to claim 2, characterized in that: The convex plate (201) has mounting holes (204) on both sides, and the convex plate (201) is fixedly installed on the top center of the tooling base plate (1) through the mounting holes (204).

4. The welding fixture for a battery cover explosion-proof valve according to claim 1, characterized in that: The limit adjustment module (3) includes two sets of limit members symmetrically arranged on both sides of the vacuum module (2).

5. The welding fixture for a battery cover explosion-proof valve according to claim 4, characterized in that: The limiting component includes a front limiting block (301), a rear limiting block (302), and a side limiting block (303). The front limiting block (301) and the rear limiting block (302) are slidably disposed in a vertical groove (304) on the tooling base plate (1), and the side limiting block (303) is slidably disposed in a horizontal groove (305) on the tooling base plate (1). The bottom of the front limiting block (301), the rear limiting block (302), and the side limiting block (303) are all rotatably provided with limiting screws.

6. The welding fixture for an explosion-proof valve on a battery cover according to claim 5, characterized in that: The front limiting block (301), the rear limiting block (302) and the side limiting block (303) have a limiting step (306) on the top of one side of the vacuum module (2).

7. The welding fixture for a battery cover explosion-proof valve according to claim 6, characterized in that: The horizontal slide (305) and the vertical slide (304) intersect at a cross, with the intersection point close to the vacuum module (2).

8. The welding fixture for a battery cover explosion-proof valve according to claim 7, characterized in that: The limiting screw includes a screw body (307), a metal washer (308), and a rubber ring (309), with the metal washer (308) and the rubber ring (309) both sleeved on the screw body (307).

9. The welding fixture for a battery cover explosion-proof valve according to claim 8, characterized in that: The diameters of the metal gasket (308) and the rubber ring (309) are greater than the widths of the transverse groove (305) and the vertical groove (304).

10. The welding fixture for a battery cover explosion-proof valve according to claim 1, characterized in that: The tooling substrate (1) is provided with a plurality of screw holes (101) evenly distributed on it, and the tooling substrate (1) is fixedly mounted on the welding equipment table through the screw holes (101).

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