Special jig for welding new energy battery pack shell

Abstract

The utility model discloses a special jig for welding a new energy battery pack shell, which comprises a containing table, a limiting assembly is arranged in the containing table, four first mounting grooves are formed in the limiting assembly, the four first mounting grooves are distributed at equal intervals, and the limiting assembly is arranged in the containing table. The inner walls of the two sides of the four first mounting grooves are each rotationally connected with a screw rod, the four screw rods are each in threaded connection with a mounting block, the four mounting blocks are slidably connected into the four first mounting grooves correspondingly, the outer walls of the tops of the four mounting blocks are each fixedly connected with a push plate, a second mounting groove is formed in the middle of the containing table, and the top of the second mounting groove is fixedly connected with a push plate. According to the battery shell welding device, by arranging the limiting assembly, the positions of battery shells and cover plates of different models can be firmly limited, meanwhile, the problem of position deviation during welding work is effectively avoided, and the edges of the shells and the edges of the cover plates can be just aligned.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment and tooling, in particular to a special jig for welding a shell of a new energy battery pack. Background Art

[0002] The battery pack shell is an important component of the battery. It plays the function of protecting the internal structure of the battery and providing external support and fixation. With the continuous development of battery technology, the design and material selection of the battery pack shell are becoming more and more important.

[0003] In the specific welding work, it is necessary to first cover the cover plate on the top of the battery shell and make the two fit tightly together before welding. Since the welding gun needs to contact the shell during the welding process, it is inevitable that the position will be offset, and the operation process is relatively inconvenient. Therefore, a special jig for welding the shell of a new energy battery pack is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a special jig for welding the outer shell of a new energy battery pack to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special jig for welding the outer shell of a new energy battery pack, comprising a placing table, characterized in that a limiting component is installed inside the placing table, four first mounting grooves are opened inside the limiting component, and the four first mounting grooves are distributed at equal distances, and the inner walls on both sides of the four first mounting grooves are rotatably connected to a screw rod, and the four screw rods are threadedly connected to a mounting block, and the four mounting blocks are respectively slidably connected to the four first mounting grooves, and the top outer walls of the four mounting blocks are fixedly connected to a push plate.

[0006] As a further preferred embodiment of the present technical solution, a second installation groove is opened in the middle of the placing table, and the inner walls around the second installation groove are rotatably connected to a driven gear, and the four driven gears are coaxially fixed with four screw rods respectively. A motor is fixedly installed on the inner wall of the top of the placing table, and a transmission gear is coaxially fixed on the motor shaft, and the four driven gears are all engaged with the transmission gear.

[0007] It can firmly restrict the positions of battery shells and cover plates of different models, effectively avoid the problem of position displacement during welding, and facilitate the smooth docking of the shell and the cover plate. The motor at the bottom of the holding table is started, and the motor drives the transmission gear to rotate. The transmission gear can drive multiple driven gears to rotate synchronously through meshing, and then the multiple screw rods connected to the multiple driven gears will also rotate synchronously. The multiple mounting blocks restricted by the first mounting groove will be driven by the screw rod to approach each other, and then the battery shell and the cover plate will be firmly restricted together and can be in an aligned state. At this time, positioning welding can be directly performed.

[0008] As a further preferred embodiment of the present technical solution, an extrusion assembly is installed on one side of the four push plates close to each other, and the extrusion assembly includes a plurality of sliding rods slidably inserted in the push plates, one end of the plurality of sliding rods is fixedly connected to the same fixed plate, a spring is sleeved on the outside of the plurality of sliding rods, and the two ends of the plurality of springs are respectively fixedly connected to the push plates and the fixed plates.

[0009] If the battery is a rectangular parallelepiped, there will be two fixed plates that first contact the two sides of the outer shell. Since there is a spring between the fixed plate and the push plate, it can ensure that the push plate can continue to move. Then the other two fixed plates can correct the cover plate at the bottom position so that the shell and the cover plate can be aligned exactly, which is conducive to increasing the adaptability of the device.

[0010] As a further preferred embodiment of the technical solution, one side of the four fixing plates close to each other is rotatably connected with a plurality of rubber wheels, and the plurality of rubber wheels are arranged in a vertical state.

[0011] As a further preferred embodiment of the present technical solution, a plurality of support blocks are fixedly connected to the middle portion of the outer wall at the top of the placing table.

[0012] As a further preferred embodiment of the present technical solution, the lead angle of the plurality of screw threads is smaller than the equivalent friction angle.

[0013] The utility model provides a special jig for welding the outer shell of a new energy battery pack, which has the following beneficial effects:

[0014] (1) The utility model can firmly limit the positions of battery shells and cover plates of different models by setting a limiting component, effectively avoid the problem of position offset during welding, and make the edges of the shell and the cover plate just aligned. Start the motor at the bottom of the placing table, the motor drives the transmission gear to rotate, and the transmission gear can drive multiple driven gears to rotate synchronously through meshing, and then the multiple screw rods connected to the multiple driven gears will also rotate synchronously, and the multiple mounting blocks restricted by the first mounting groove will be driven by the screw rod to approach each other, and then the battery shell and the cover plate will be firmly restricted together and can be just in an aligned state, at this time, positioning welding can be directly performed.

[0015] (2) The utility model provides an extrusion assembly. If the battery is a rectangular parallelepiped, two fixing plates will first contact the two sides of the outer shell. Since there is a spring between the fixing plate and the push plate, it can be ensured that the push plate can continue to move. Then the other two fixing plates can correct the cover plate at the bottom position, so that the shell and the cover plate can be aligned, which is conducive to increasing the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall first-view structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0018] Figure 3 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 4 For the utility model Figure 1 The enlarged structural diagram at B in the middle;

[0020] In the figure: 1. holding table; 2. supporting block; 3. limiting assembly; 4. extrusion assembly; 301. first mounting slot; 302. mounting block; 303. screw rod; 304. push plate; 305. second mounting slot; 306. driven gear; 307. transmission gear; 308. motor; 401. sliding rod; 402. spring; 403. fixing plate; 404. rubber wheel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figure 2 , Figure 3 As shown in FIG4 , in the present embodiment, a special jig for welding the outer shell of a new energy battery pack comprises a placing table 1, characterized in that: a limiting component 3 is installed inside the placing table 1, four first mounting grooves 301 are opened inside the limiting component 3, and the four first mounting grooves 301 are distributed at equal distances, and the inner walls on both sides of the four first mounting grooves 301 are rotatably connected to a screw rod 303, and the four screw rods 303 are threadedly connected to a mounting block 302, and the four mounting blocks 302 are respectively slidably connected to the four first mounting grooves 301, and the top outer walls of the four mounting blocks 302 are fixedly connected to a push plate 304.

[0023] A second mounting groove 305 is provided in the middle of the placing table 1, and the inner walls around the second mounting groove 305 are rotatably connected to a driven gear 306. The four driven gears 306 are coaxially fixed to the four screw rods 303 respectively. A motor 308 is fixedly installed on the inner wall at the top of the placing table 1, and a transmission gear 307 is coaxially fixed to the rotating shaft of the motor 308. The four driven gears 306 are all meshed with the transmission gear 307.

[0024] Start the motor 308 at the bottom of the placing table 1, and the motor 308 drives the transmission gear 307 to rotate. The transmission gear 307 can drive multiple driven gears 306 to rotate synchronously through meshing, and then the multiple screw rods 303 connected to the multiple driven gears 306 will also rotate synchronously, and the multiple mounting blocks 302 restricted by the first mounting groove 301 will be driven by the screw rods 303 to approach each other, and then the battery casing and the cover plate will also be firmly restricted together and can be in an aligned state, and positioning welding can be directly performed at this time.

[0025] like Figure 1 and Figure 4 As shown, an extrusion assembly 4 is installed on one side of the four push plates 304 close to each other, and the extrusion assembly 4 includes a plurality of slide rods 401 slidably inserted in the push plates 304, one end of the plurality of slide rods 401 is fixedly connected to the same fixed plate 403, a spring 402 is sleeved on the outside of the plurality of slide rods 401, and the two ends of the plurality of springs 402 are respectively fixedly connected to the push plates 304 and the fixed plates 403.

[0026] A plurality of rubber wheels 404 are rotatably connected to one side of the four fixing plates 403 that are close to each other, and the plurality of rubber wheels 404 are all arranged in a vertical state.

[0027] If the battery is a rectangular parallelepiped, there will be two fixing plates 403 that first contact the two sides of the outer shell. Since there is a spring 402 between the fixing plate 403 and the push plate 304, it can ensure that the push plate 304 can continue to move. Under the action of the vertically arranged rubber wheel 404, while ensuring the restriction effect, it also allows the cover plate or shell to move in the horizontal direction. Then the other two fixing plates 403 can correct the offset cover plate or shell so that the two can be exactly aligned.

[0028] like Figure 1 As shown, a plurality of support blocks 2 are fixedly connected to the middle of the top outer wall of the placing table 1, so that the edge of the battery shell is suspended, making it convenient to take and place the battery shell.

[0029] like Figure 1 As shown in FIG. 2 , the lead angle of the threads of the plurality of screw rods 303 is smaller than the equivalent friction angle, so that the plurality of screw rods 303 have a self-locking property.

[0030] The utility model provides a special jig for welding the shell of a new energy battery pack. The specific working principle is as follows:

[0031] When the device is working, the cover plate and the shell with the battery installed are first placed on the top of the multiple support blocks 2, and then the motor 308 at the bottom of the placing table 1 is started. The motor 308 drives the transmission gear 307 to rotate, and the transmission gear 307 can drive the multiple driven gears 306 to rotate synchronously through meshing, and then the multiple screw rods 303 connected to the multiple driven gears 306 will also rotate synchronously, and the multiple mounting blocks 302 restricted by the first mounting groove 301 will be driven by the screw rods 303 to approach each other, and then the battery shell and the cover plate will also be firmly restricted together, and can be exactly in an aligned state. At this time, positioning welding can be directly performed. If the battery is a rectangular parallelepiped, there will be two fixed plates 403 that first contact the two sides of the shell. Since there is a spring 402 between the fixed plate 403 and the push plate 304, it can be ensured that the push plate 304 can continue to move. Under the action of the vertically arranged rubber wheel 404, while ensuring the restriction effect, the cover plate or shell can also move in the horizontal direction. Then the other two fixed plates 403 can correct the offset cover plate or shell so that the two can be exactly aligned.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special jig for welding the outer shell of a new energy battery pack, comprising a placing table (1), characterized in that: The placing table (1) is internally installed with a limiting component (3), and the limiting component (3) is internally provided with four first installation grooves (301), and the four first installation grooves (301) are distributed at equal distances, and the inner walls on both sides of the four first installation grooves (301) are rotatably connected to a screw rod (303), and the four screw rods (303) are threadedly connected to a mounting block (302), and the four mounting blocks (302) are respectively slidably connected to the four first installation grooves (301), and the top outer walls of the four mounting blocks (302) are fixedly connected to a push plate (304).

2. The special jig for welding the shell of a new energy battery pack according to claim 1 is characterized in that: A second mounting groove (305) is provided in the middle of the placing table (1), and the inner walls around the second mounting groove (305) are rotatably connected to a driven gear (306), and the four driven gears (306) are coaxially fixed to the four screw rods (303) respectively. A motor (308) is fixedly installed on the inner wall of the top of the placing table (1), and a transmission gear (307) is coaxially fixed to the rotating shaft of the motor (308), and the four driven gears (306) are all meshed with the transmission gear (307).

3. The special jig for welding the shell of a new energy battery pack according to claim 1 is characterized in that: A pressing assembly (4) is installed on each side of the four push plates (304) close to each other. The pressing assembly (4) includes a plurality of slide bars (401) slidably inserted in the push plates (304). One end of the plurality of slide bars (401) is fixedly connected to the same fixed plate (403). A spring (402) is sleeved on the outside of the plurality of slide bars (401). Both ends of the plurality of springs (402) are fixedly connected to the push plates (304) and the fixed plate (403), respectively.

4. The special jig for welding the shell of a new energy battery pack according to claim 3 is characterized in that: The sides of the four fixing plates (403) that are close to each other are rotatably connected to a plurality of rubber wheels (404), and the plurality of rubber wheels (404) are all arranged in a vertical state.

5. The special jig for welding the shell of a new energy battery pack according to claim 1 is characterized in that: A plurality of support blocks (2) are fixedly connected to the middle portion of the top outer wall of the placing table (1).

6. The special jig for welding the shell of a new energy battery pack according to claim 1 is characterized in that: The thread lead angles of the threads of the plurality of screw rods (303) are smaller than the equivalent friction angle.

Images