Jig for welding battery cell

Abstract

The utility model discloses a jig for welding a battery cell, which comprises an accommodating seat and a positioning plate arranged on the accommodating seat, a negative pressure device is fixed in a cavity of the accommodating seat, a plurality of material grooves are arranged on the upper end face of the positioning plate, and an adjusting mechanism and an adsorption mechanism are arranged on the positioning plate. The multiple sets of adjusting mechanisms and the multiple sets of adsorption mechanisms are arranged, a plurality of first air holes are formed in each material groove, each adjusting mechanism comprises a fixing base and a rotary knob rotationally connected to the fixing base, a threaded rod is fixedly connected to the rotary knob, a sliding block is arranged on the threaded rod, a rack is fixed to the sliding block, and the rack is fixedly connected to the rotary knob. The adsorption mechanism comprises a rotating shaft and a rotating disc fixed to the rotating shaft, and a plurality of second air holes are formed in the rotating disc. According to the jig for welding the battery cell, the battery cell on the positioning plate is subjected to negative pressure adsorption through work of the negative pressure equipment, so that the battery cell is kept in a stable state in the welding process, and the trouble of fixing by using a clamp is avoided.

Description

Technical Field

[0001] This utility model relates to a jig for battery cells, specifically a jig for welding battery cells. Background Technology

[0002] A battery cell is the core component of a battery, responsible for storing and releasing electrical energy. It is the basic unit of a battery, consisting of a positive electrode, a negative electrode, an electrolyte, and a separator. A battery cell does not include protection circuitry or a casing, therefore it cannot be used directly and needs to be combined with other components to form a complete battery.

[0003] Before welding battery cells, they need to be placed in a fixture. However, most current battery cell welding fixtures use clamps to fix them. The clamps need to be in direct contact with the battery cells and generate pressure, which may cause wear or deformation to the battery cells. Utility Model Content

[0004] The purpose of this utility model is to provide a fixture for welding battery cells, which can avoid wear and deformation of the battery cells. In use, the battery cells on the positioning plate are adsorbed by negative pressure through the operation of the negative pressure device, so that the battery cells remain in a stable state during the welding process, eliminating the trouble of using clamps for fixation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture for welding battery cells, comprising a receiving seat and a positioning plate disposed on the receiving seat. The receiving seat is a cavity structure with an opening at the top and a hollow interior. A negative pressure device is fixed inside the cavity of the receiving seat. The upper end face of the positioning plate is provided with multiple material slots, and the positioning plate is provided with an adjustment mechanism and an adsorption mechanism. Multiple sets of the adjustment mechanism and adsorption mechanism are provided, with each material slot corresponding to one adjustment mechanism and one adsorption mechanism. Multiple first vent holes are provided in each material slot. The adjustment mechanism includes a fixed seat and a knob rotatably connected to the fixed seat. A screw is fixedly connected to the knob, and a slider is provided on the screw. A rack is fixed on the slider. The adsorption mechanism includes a rotating shaft and a turntable fixed to the rotating shaft. Multiple second vent holes are provided on the turntable, and meshing teeth are provided on the outer circle of the turntable. The meshing teeth are adapted to the rack. When the negative pressure device is working, it can perform negative pressure adsorption on the battery cells disposed in the multiple material slots.

[0006] Preferably, an inner groove is provided on the upper end face of the receiving seat, and the positioning plate is inserted into the inner groove to fix the positioning plate on the receiving seat.

[0007] Preferably, the multiple first vent holes in each material slot all penetrate the positioning plate, and the multiple first vent holes are neatly distributed in the material slot.

[0008] Preferably, the fixing seat is horizontally arranged and fixed to the upper end surface of the positioning plate.

[0009] Preferably, a side groove is provided on the fixed base, and both the screw and the slider are disposed in the side groove.

[0010] Preferably, the rotating shaft is located inside the material groove, and the rotating shaft is rotatably connected to the positioning plate.

[0011] Preferably, the second vent hole passes through the turntable, and the second vent hole has the same shape and size as the first vent hole. By rotating the turntable, the positional relationship between the multiple second vent holes and the multiple first vent holes can be adjusted, so that the size of the vent holes can be adjusted to accommodate the adsorption of battery cells of different weights.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses a negative pressure device to adsorb the battery cells on the positioning plate, which can keep the battery cells in a stable state during the welding process, eliminating the trouble of using clamps for fixing and thus avoiding wear and deformation of the battery cells.

[0014] 2. In this utility model, the position of the second vent can be changed by rotating the positioning plate, and the relative relationship between the first vent and the second vent can be adjusted so that the degree of overlap of the airflow opening can be changed, thereby facilitating better adsorption of battery cells of different weights to meet the processing needs of different battery cells. Attached Figure Description

[0015] Figure 1 This is one of the schematic diagrams of Embodiment 1 of the present utility model;

[0016] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0017] Figure 3 This is a second schematic diagram of Embodiment 1 of the present utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged view of A in the middle;

[0019] Figure 5 This is a schematic diagram of the adsorption mechanism of this utility model;

[0020] Figure 6 This utility model Figure 3 Cross-sectional view of BB in the middle;

[0021] Figure 7 This is a top view of Embodiment 2 of the present invention.

[0022] The reference numerals and names in the figure are as follows: 1. Receiving seat; 11. Inner edge groove; 2. Positioning plate; 21. Material groove; 22. First vent hole; 3. Adjustment mechanism; 31. Fixed seat; 32. Knob; 33. Side groove; 34. Screw; 35. Slider; 36. Rack; 4. Adsorption mechanism; 41. Rotating shaft; 42. Turntable; 421. Upper positioning groove; 43. Second vent hole; 44. Meshing teeth; 5. Negative pressure device. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] Example 1:

[0027] Please see Figure 1The first embodiment of this utility model is a fixture for welding battery cells, including a receiving seat 1 and a positioning plate 2 disposed on the receiving seat 1. The positioning plate 2 is provided with an adjustment mechanism 3 and an adsorption mechanism 4, and multiple sets of the adjustment mechanism 3 and the adsorption mechanism 4 are provided.

[0028] Please see Figure 2 The receiving seat 1 is a cavity structure with an opening at the top and a hollow interior. A negative pressure device 5 is fixed inside the cavity of the receiving seat 1. When the negative pressure device 5 is working, it can perform negative pressure adsorption on the battery cells set in multiple material slots 21. The technical principle and structure of the negative pressure device 5 are existing technologies and will not be described in detail here. In this embodiment, the negative pressure device 5 is a negative pressure forming machine. An inner edge groove 11 is provided on the upper end face of the receiving seat 1. The positioning plate 2 fits into the inner edge groove 11 so that the positioning plate 2 can be fixed on the receiving seat 1.

[0029] Please see Figures 3 to 4 The upper surface of the positioning plate 2 is provided with multiple material slots 21. Each material slot 21 corresponds to an adjustment mechanism 3 and an adsorption mechanism 4. Multiple first vent holes 22 are provided in each material slot 21. The multiple first vent holes 22 in each material slot 21 penetrate the positioning plate 2 and are neatly distributed in the material slot 21.

[0030] Please see Figure 5 The adsorption mechanism 4 includes a turntable 42, which is attached to the bottom wall of the material groove 21. An upper positioning groove 421 is provided on the upper end face of the turntable 42. The upper positioning groove 421 has four notches. The space of the upper positioning groove 421 is used to accommodate battery cells. The adsorption mechanism 4 also includes a rotating shaft 41, which is set in the material groove 21 and is rotatably connected to the positioning plate 2. The turntable 42 is fixed on the rotating shaft 41. A plurality of second vent holes 43 are provided on the turntable 42. The second vent holes 43 penetrate the turntable 42, and the shape and size of the second vent holes 43 are the same as those of the first vent holes 22. By rotating the turntable 42, the positional relationship between the plurality of second vent holes 43 and the plurality of first vent holes 22 can be adjusted, so that the size of the vent holes can be adjusted to accommodate the adsorption of battery cells of different weights. The outer circle of the turntable 42 is provided with meshing teeth 44.

[0031] Please see Figure 6 The adjustment mechanism 3 includes a fixed base 31 and a knob 32 rotatably connected to the fixed base 31. The fixed base 31 is horizontally arranged and fixed to the upper end face of the positioning plate 2. A screw 34 is fixedly connected to the knob 32. A slider 35 is provided on the screw 34. A side groove 33 is provided on the fixed base 31. The screw 34 and the slider 35 are both located in the side groove 33. A rack 36 is fixed on the slider 35. The meshing teeth 44 are adapted to the rack 36.

[0032] Example 2:

[0033] Please see Figure 7 Another embodiment of this utility model is a jig for welding battery cells. The structure of this embodiment is basically the same as that of the first embodiment. The difference is that the shapes of the material groove 21 and the first vent hole 22 are different from those of the first embodiment, so as to adapt to the needs of different battery cells during welding.

[0034] Please refer to the following: Figures 1 to 7 In this invention, multiple battery cells to be welded are first placed in multiple upper positioning slots 421. The overlap of the openings of the first vent 22 and the second vent 43 is adjusted according to the weight of the battery cells. If the battery cells are heavy, the overlap needs to be greater. During adjustment: rotating the knob 32 drives the screw 34 to rotate, which causes the slider 35 to move the rack 36, thereby driving the turntable 42 and the shaft 41 to rotate, thus adjusting the relative position of the second vent 43 and the first vent 22, so that the overlap can be adjusted. When the negative pressure device 5 is working, the battery cells in the upper positioning slots 421 can be adsorbed and fixed through the opening between the second vent 43 and the first vent 22, thus avoiding contact fixing of the battery cells and avoiding damage to the battery cells.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fixture for welding battery cells, comprising a receiving base (1) and a positioning plate (2) disposed on the receiving base (1), characterized in that: The receiving seat (1) is a cavity structure with an opening at the top and a hollow interior. A negative pressure device (5) is fixed inside the cavity of the receiving seat (1). The upper end face of the positioning plate (2) is provided with multiple material slots (21). The positioning plate (2) is provided with an adjustment mechanism (3) and an adsorption mechanism (4). Multiple sets of the adjustment mechanism (3) and the adsorption mechanism (4) are provided. Multiple first vent holes (22) are provided in each material slot (21). The adjustment mechanism (3) includes a fixed seat (31) and a rotatably connected to... A knob (32) is fixed on the fixed base (31), a screw (34) is fixedly connected to the knob (32), a slider (35) is provided on the screw (34), a rack (36) is fixed on the slider (35), the adsorption mechanism (4) includes a rotating shaft (41) and a turntable (42) fixed on the rotating shaft (41), the turntable (42) is provided with a plurality of second vent holes (43), and the outer circle of the turntable (42) is provided with meshing teeth (44), the meshing teeth (44) are adapted to the rack (36).

2. The fixture for welding battery cells according to claim 1, characterized in that: The upper end face of the receiving seat (1) is provided with an inner edge groove (11), and the positioning plate (2) is inserted into the inner edge groove (11).

3. The fixture for welding battery cells according to claim 1, characterized in that: Multiple first vent holes (22) in each of the material slots (21) penetrate the positioning plate (2), and the multiple first vent holes (22) are neatly distributed in the material slots (21).

4. The fixture for welding battery cells according to claim 1, characterized in that: The fixing seat (31) is horizontally arranged and fixed to the upper end face of the positioning plate (2).

5. The fixture for welding battery cells according to claim 1, characterized in that: The fixed base (31) is provided with a side groove (33), and the screw (34) and the slider (35) are both provided in the side groove (33).

6. The fixture for welding battery cells according to claim 1, characterized in that: The rotating shaft (41) is located in the material groove (21) and is rotatably connected to the positioning plate (2).

7. The fixture for welding battery cells according to claim 1, characterized in that: The second vent (43) penetrates the turntable (42), and the second vent (43) has the same shape and size as the first vent (22).

8. The fixture for welding battery cells according to claim 1, characterized in that: The upper end face of the turntable (42) is provided with an upper positioning groove (421), which has four notches.

Images