Tool clamp for laser spot welding of battery pack

Abstract

The utility model relates to the technical field of battery manufacturing, in particular to a tool clamp for laser spot welding of a battery pack, which comprises a bearing table and further comprises a combined clamping plate arranged above the bearing table. According to the tool clamp for laser spot welding of the battery pack, the combined clamping plates and the opposite moving mechanism are arranged, the motor is used for driving the vertical clamping plates and the transverse clamping plates to move, the hashed batteries are rapidly arranged in a strip shape, manual intervention operation of workers is not needed, the working efficiency is improved, and the working efficiency is improved. The working efficiency of laser spot welding operation is greatly improved; by arranging the rotating shaft and the telescopic spring, when the auxiliary plate is inclined at the beginning and the batteries are all lifted and clamped during toppling, the batteries abut against the side wall of the auxiliary plate to compress the telescopic spring so that the auxiliary plate can rotate to a vertical state, at the moment, a strip-shaped battery pack can be clamped, and laser spot welding operation of the battery pack is facilitated; and the battery pack can be prevented from inclining in the clamping process.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a tooling fixture used for laser spot welding of battery packs. Background Art

[0002] The battery cells are spot welded to each other through molded nickel sheets to form an integrated battery pack.

[0003] Traditional strip battery pack assembly is generally arranged by manually controlling the clamps. During the spot welding process, a large number of batteries are poured between the clamps. By moving the two clamps towards each other, the batteries are squeezed by the side walls of the clamps to arrange the batteries into strip groups, thereby performing laser spot welding of the battery pack. However, due to the large number of battery cells, it is difficult to grasp their positions, and some batteries entering the clamps may fall over. When arranging, the operator needs to manually lift up the fallen batteries, which greatly affects the operating efficiency when facing laser spot welding of large quantities of battery packs. For this reason, we propose a tooling fixture for laser spot welding of battery packs. Utility Model Content

[0004] A technical problem to be solved by the present application is that the working efficiency of the tooling fixtures used for laser spot welding of battery packs under the existing technology is relatively low.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a fixture for laser spot welding of a battery pack, including a load-bearing platform and also including:

[0006] A combined clamping plate, which is arranged above the load-bearing platform and is used to clamp and arrange the batteries;

[0007] The opposite moving mechanism is arranged inside the load-bearing platform, and the movement of the combined splint is controlled by the opposite moving mechanism.

[0008] In some embodiments, the interior of the load-bearing platform is hollow, and the upper surface of the load-bearing platform is provided with symmetrically arranged moving grooves, and stabilizing grooves are provided between the moving grooves.

[0009] In some embodiments, the combined splint includes symmetrically arranged vertical splints, one end of each of the vertical splints is provided with a transverse splint, and one side of the vertical splint is fixedly provided with an auxiliary plate.

[0010] In some embodiments, the opposite movement mechanism includes a motor, a first gear is provided at the upper end of the motor, second gears are provided at both ends of the first gear, a moving rack is provided on one side of the second gear, and a plurality of connecting columns are fixedly provided at the upper end of the moving rack.

[0011] In some embodiments, the motor is fixedly arranged on the bottom surface of the inner wall of the load-bearing platform, the output end of the motor is fixedly connected to the center of the first gear, a connecting shaft is fixedly arranged on one side of the second gear, and the connecting shaft is rotatably connected to the bottom surface of the inner wall of the load-bearing platform.

[0012] In some embodiments, the first gear is meshed with the second gear, the movable rack is meshed with the second gear, the upper end of the connecting column is fixedly connected to the bottom surface of the vertical clamping plate, and the movable groove is adapted to the connecting column and the movable rack.

[0013] In some embodiments, the combined splint includes symmetrically arranged vertical splints, a transverse splint is arranged at one end of the vertical splint, an auxiliary plate is arranged on one side of the vertical splint, and a rotating shaft is fixedly arranged on the side of the auxiliary plate.

[0014] In some embodiments, the rotating shaft is rotatably connected to the vertical clamping plate, a telescopic spring is fixedly provided on one side of the auxiliary plate, and the other end of the telescopic spring is fixedly connected to the side wall of the vertical clamping plate.

[0015] The utility model has at least the following beneficial effects:

[0016] By setting up a combined clamp and a opposing moving mechanism, using a motor to drive the vertical clamp and the horizontal clamp to move, and then using the auxiliary plate to push the dumped batteries, the scattered batteries can be quickly arranged in strips without the need for manual intervention by workers, greatly improving the work efficiency of the battery pack laser spot welding operation.

[0017] By setting a rotating shaft and a telescopic spring, the auxiliary plate is tilted at the beginning. When the fallen batteries are lifted up and clamped, the batteries compress the telescopic spring against the side wall of the auxiliary plate to rotate the auxiliary plate to a vertical state. At this time, the strip battery pack can be clamped, which is convenient for the laser spot welding operation of the battery pack and can prevent the battery pack from tilting during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the load-bearing platform in the utility model;

[0021] Figure 4 The overall structure of the utility model is shown in FIG. Figure 3 ;

[0022] Figure 5It is a structural schematic diagram of the rotating shaft and the telescopic spring in the utility model.

[0023] In the figure: 1. load-bearing platform; 11. moving groove; 12. stabilizing groove; 2. combined splint; 21. vertical splint; 22. horizontal splint; 23. auxiliary plate; 24. rotating shaft; 25. telescopic spring; 3. opposite moving mechanism; 31. motor; 32. first gear; 33. second gear; 34. connecting shaft; 35. moving rack; 36. connecting column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] See also Figure 1-3 The utility model provides a technical solution of a tooling fixture for laser spot welding of battery packs: a tooling fixture for laser spot welding of battery packs, comprising a load-bearing platform 1, and also comprising: a combined clamping plate 2 arranged above the load-bearing platform 1, through which the combined clamping plate 2 is used to clamp and arrange the batteries; an opposing moving mechanism 3 arranged inside the load-bearing platform 1, through which the movement of the combined clamping plate 2 is controlled.

[0027] The interior of the load-bearing platform 1 is hollow in order to install the opposing moving mechanism 3 therein. The upper surface of the load-bearing platform 1 is provided with symmetrical moving grooves 11. The moving grooves 11 are provided to facilitate the movement of the moving rack 35 and the connecting column 36. Stabilizing grooves 12 are provided between the moving grooves 11. The diameter of the stabilizing grooves 12 is the same as that of the battery, and the lower end of the battery can be stuck in the stabilizing grooves 12.

[0028] The combined clamping plate 2 includes a symmetrically arranged vertical clamping plate 21, a horizontal clamping plate 22 is fixedly arranged at one end of the vertical clamping plate 21, and the horizontal clamping plate 22 is driven to approach each other by the movement of the vertical clamping plate 21, so as to clamp the battery, and an auxiliary plate 23 is fixedly arranged on one side of the vertical clamping plate 21. The auxiliary plate 23 is arranged to support the tilted battery, and the battery is pushed to gather in the middle of the load-bearing platform 1 through the inclined surface of the auxiliary plate 23.

[0029] The opposing moving mechanism 3 includes a motor 31, the model of the motor 31 is KYDAS96300-1E, which is a prior art and will not be elaborated on here. A first gear 32 is provided at the upper end of the motor 31, and second gears 33 are provided at both ends of the first gear 32. A moving rack 35 is provided on one side of the second gear 33, and a plurality of connecting columns 36 are fixedly provided at the upper end of the moving rack 35.

[0030] The motor 31 is fixedly arranged on the bottom surface of the inner wall of the load-bearing platform 1 , and the output end of the motor 31 is fixedly connected to the center of the first gear 32 . A connecting shaft 34 is fixedly arranged on one side of the second gear 33 , and the connecting shaft 34 is rotatably connected to the bottom surface of the inner wall of the load-bearing platform 1 .

[0031] The first gear 32 is meshed with the second gear 33 , the moving rack 35 is meshed with the second gear 33 , the upper end of the connecting column 36 is fixedly connected to the bottom surface of the vertical clamping plate 21 , and the moving groove 11 is adapted to the connecting column 36 and the moving rack 35 .

[0032] By setting up a combined clamping plate 2 and a counter-moving mechanism 3, using a motor 31 to drive the vertical clamping plate 21 and the horizontal clamping plate 22 to move, and then using the auxiliary plate 23 to push the tilted batteries, the scattered batteries can be quickly arranged in strips without the need for manual intervention by workers, thereby greatly improving the work efficiency of the battery pack laser spot welding operation.

[0033] First, the batteries that need to be laser spot welded are placed in the combined clamping plate 2 on the load-bearing platform 1. At this time, some batteries are in a vertical state, and some batteries are in a tilted state. The motor 31 is started by the control component, and the output end of the motor 31 begins to drive the first gear 32 to rotate. The rotation of the first gear 32 will drive the two second gears 33 to rotate. The rotation of the second gear 33 will drive the moving rack 35 to move, and the moving rack 35 will then drive the connecting column 36 to move. The movement of the connecting column 36 will drive the vertical clamping plate 21 to move. At this time, the horizontal clamping plate 22 will be driven to move in a direction close to each other. At this time, the auxiliary plate 23 will also be driven to move. The inclined surface of the auxiliary plate 23 will contact the tilted battery, and the battery will be continuously pushed toward the center of the load-bearing platform 1. The stabilizing groove 12 at the center of the load-bearing platform 1 will adapt to the lower end of the battery, so that the arranged batteries are arranged into strip groups.

[0034] Embodiment 2:

[0035] See also Figure 4-5The utility model provides another technical solution of the auxiliary plate 23: a fixture for laser spot welding of battery packs, including a combined clamp 2 including symmetrically arranged vertical clamps 21, one end of the vertical clamps 21 is provided with a horizontal clamp 22, one side of the vertical clamp 21 is provided with an auxiliary plate 23, the side of the auxiliary plate 23 is fixedly provided with a rotating shaft 24, the rotating shaft 24 is rotatably connected to the vertical clamp 21, so that the auxiliary plate 23 can rotate, one side of the auxiliary plate 23 is fixedly provided with a telescopic spring 25, the other end of the telescopic spring 25 is fixedly connected to the side wall of the vertical clamp 21, and the telescopic spring 25 is provided to make the auxiliary plate 23 in an inclined state when not squeezed.

[0036] By setting the rotating shaft 24 and the telescopic spring 25, the auxiliary plate 23 is tilted at the beginning. When the fallen batteries are all lifted up and clamped, the batteries compress the telescopic spring 25 against the side wall of the auxiliary plate 23 to rotate the auxiliary plate 23 to a vertical state. At this time, the strip battery pack can be clamped, which is convenient for the laser spot welding operation of the battery pack. At the same time, the battery pack can be prevented from tilting during the clamping process.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] 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 fixture for laser spot welding of a battery pack, comprising a load-bearing platform (1), characterized in that: Also included are: A combined clamping plate (2), the combined clamping plate (2) being arranged above the load-bearing platform (1), and the batteries are clamped and arranged by the combined clamping plate (2); An opposing moving mechanism (3) is arranged inside the load-bearing platform (1), and the movement of the combined splint (2) is controlled by the opposing moving mechanism (3).

2. A fixture for laser spot welding of battery packs according to claim 1, characterized in that: The interior of the load-bearing platform (1) is hollow, and the upper surface of the load-bearing platform (1) is provided with symmetrically arranged moving grooves (11), and stable grooves (12) are provided between the moving grooves (11).

3. The fixture for laser spot welding of battery packs according to claim 1, characterized in that: The combined clamping plate (2) comprises symmetrically arranged vertical clamping plates (21), one end of each of the vertical clamping plates (21) is provided with a transverse clamping plate (22), and one side of the vertical clamping plate (21) is fixedly provided with an auxiliary plate (23).

4. The fixture for laser spot welding of battery packs according to claim 2, characterized in that: The opposite movement mechanism (3) comprises a motor (31), a first gear (32) is arranged at the upper end of the motor (31), second gears (33) are arranged at both ends of the first gear (32), a moving rack (35) is arranged on one side of the second gear (33), and a plurality of connecting columns (36) are fixedly arranged at the upper end of the moving rack (35).

5. The fixture for laser spot welding of battery packs according to claim 4, characterized in that: The motor (31) is fixedly arranged on the bottom surface of the inner wall of the load-bearing platform (1); the output end of the motor (31) is fixedly connected to the center of the first gear (32); a connecting shaft (34) is fixedly arranged on one side of the second gear (33); and the connecting shaft (34) is rotatably connected to the bottom surface of the inner wall of the load-bearing platform (1).

6. A fixture for laser spot welding of battery packs according to claim 5, characterized in that: The first gear (32) is meshed with the second gear (33), the movable rack (35) is meshed with the second gear (33), the upper end of the connecting column (36) is fixedly connected to the bottom surface of the vertical clamping plate (21), and the movable groove (11) is adapted to the connecting column (36) and the movable rack (35).

7. The fixture for laser spot welding of battery packs according to claim 1, characterized in that: The combined clamping plate (2) comprises a symmetrically arranged vertical clamping plate (21), a transverse clamping plate (22) being arranged at one end of the vertical clamping plate (21), an auxiliary plate (23) being arranged on one side of the vertical clamping plate (21), and a rotating shaft (24) being fixedly arranged on the side of the auxiliary plate (23).

8. The fixture for laser spot welding of battery packs according to claim 7, characterized in that: The rotating shaft (24) is rotatably connected to the vertical clamping plate (21); a telescopic spring (25) is fixedly arranged on one side of the auxiliary plate (23); and the other end of the telescopic spring (25) is fixedly connected to the side wall of the vertical clamping plate (21).

Images