Spot welding jig box

Abstract

The utility model relates to the technical field of lithium battery processing, in particular to a spot welding jig box which comprises a jig box upper plate, a jig box lower plate and a supporting plate, the jig box upper plate is located above the jig box lower plate, the supporting plate is located between the jig box upper plate and the jig box lower plate, the jig box upper plate and the jig box lower plate are consistent in structure, and the jig box upper plate and the jig box lower plate are arranged on the supporting plate. Pin punching holes are formed in the surface of the jig box upper plate, pins are fixedly connected to the inner wall of the supporting plate, and positioning grooves are formed in the surface of the jig box upper plate. According to the scheme, a battery pack is effectively positioned, the situation that the battery pack shakes in the spot welding process is reduced, meanwhile, the hollow electric welding holes are matched, the success rate of spot welding is increased, the damage rate of workpieces in the machining process is reduced, the jig box upper plate, the jig box lower plate and the supporting plate are all made of bakelite, long-term repeated use can be achieved, electric welding sparks are prevented, and the production efficiency is improved. Insulation and fire prevention are firmer and are better than those of a battery bracket material.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing, in particular to a spot welding jig box. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Lithium-ion batteries do not contain metallic lithium and are rechargeable. With the development of society, lithium batteries have been put into use on a large scale. At the same time, in the production process of lithium batteries, jig boxes are often used to assist in spot welding operations.

[0003] The inventors found in their daily work that the jig box is cumbersome to assemble during spot welding, difficult to quickly disassemble after electric welding, and often requires manual positioning of the nickel sheet, which is prone to processing deviations and causes workpiece loss. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art that the jig box is complicated to assemble during the spot welding process, is difficult to quickly disassemble after electric welding, often requires manual positioning of the nickel sheet, is prone to processing deviations, and causes workpiece loss, and thus proposes a spot welding jig box.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a spot welding jig box, comprising an upper plate of the jig box, a lower plate of the jig box and a support plate, the upper plate of the jig box is located above the lower plate of the jig box, the support plate is located between the upper plate of the jig box and the lower plate of the jig box, the structures of the upper plate of the jig box and the lower plate of the jig box are consistent, the surface of the upper plate of the jig box is provided with pin holes, the inner wall of the support plate is fixedly connected with pins, the surface of the upper plate of the jig box is provided with a positioning groove, the inner wall of the positioning groove is provided with a hollow welding hole, this scheme effectively performs positioning operation on the battery pack, reduces the shaking of the battery pack during spot welding, and at the same time cooperates with the hollow welding holes to improve the success rate of spot welding and reduce the damage rate of the workpiece during processing, the upper plate of the jig box, the lower plate of the jig box and the support plate are all made of bakelite material, can be reused for a long time, are resistant to welding sparks, and are more solid in insulation and fireproof, which is better than the battery bracket material.

[0006] Preferably, there are two support plates, and a handle is fixedly connected to one side of one of the support plates to facilitate lifting the device.

[0007] Preferably, the inner wall of the support plate is fixedly connected with a first positioning magnet, and the inner wall of the upper plate of the jig box is fixedly connected with a second positioning magnet. The first positioning magnet and the second positioning magnet are magnetically attracted to each other, and the upper plate and the lower plate of the jig box are designed to be covered with positioning magnets, which adsorb and fix the first nickel sheet and the second nickel sheet so that they do not move.

[0008] Preferably, a first nickel sheet is provided on the inner wall of the positioning groove, and a second nickel sheet is provided on the inner wall of the positioning groove, so as to facilitate auxiliary positioning operation of the first nickel sheet and the second nickel sheet.

[0009] Preferably, an inner wall of the positioning groove is provided with a concave square frame groove. The design of the concave square frame groove makes it easier to observe and correct the position, thereby reducing the placement deviation of the nickel sheet.

[0010] Preferably, a third positioning magnet is fixedly connected to the inner wall of the positioning groove.

[0011] Preferably, the number of the pins is four, and the four pins are symmetrically arranged, so that they can be quickly integrated and assembled in a short time, and can also be quickly disassembled after electric welding, and a set of jigs can be reused.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the first nickel sheet and the second nickel sheet are sequentially placed in the upper plate and the lower plate of the jig box, and then the battery pack is placed in the lower plate of the jig box, and then the pins are aligned with the pin holes and inserted to complete the connection between the upper plate, the support plate and the lower plate of the jig box, and then the first positioning magnet is adsorbed by the second positioning magnet, and then the battery pack, the first nickel sheet and the second nickel sheet are spot welded through the hollow welding holes. This scheme effectively positions the battery pack and reduces the shaking of the battery pack during spot welding. At the same time, with the hollow welding holes, the success rate of spot welding is improved and the damage rate of the workpiece during processing is reduced.

[0014] 2. In the utility model, the upper plate, the lower plate and the support plate of the jig box are all made of bakelite, which can be reused for a long time, is resistant to welding sparks, and has stronger insulation and fireproof properties, which is better than the battery bracket material.

[0015] 3. In the utility model, the upper plate and the lower plate of the jig box are designed to be covered with positioning magnets to adsorb and fix the first nickel sheet and the second nickel sheet so that they do not move.

[0016] 4. In the present invention, the concave square frame groove design makes it easier to observe and correct the position, thereby reducing the deviation of nickel sheet placement.

[0017] 5. In the present invention, six positioning grooves are provided on the upper plate and the lower plate of the jig box, so as to facilitate the placement and processing of six battery packs at the same time.

[0018] 6. The utility model can be quickly assembled in a short time and can be quickly disassembled after welding, and a set of jigs can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1A three-dimensional structural schematic diagram of a spot welding jig box is proposed for the utility model;

[0020] Figure 2 The utility model provides a schematic diagram of the bottom structure of a spot welding jig box;

[0021] Figure 3 A schematic diagram of the internal structure of a spot welding jig box is provided for the utility model;

[0022] Figure 4 The utility model provides a structural schematic diagram of a jig box upper plate in a spot welding jig box;

[0023] Figure 5 The utility model proposes a spot welding fixture box Figure 4 Schematic diagram of the structure at point A.

[0024] Legend:

[0025] 1. Lower plate of the jig box; 2. Support plate; 3. Upper plate of the jig box; 4. Handle; 5. Pin; 6. First positioning magnet; 7. Pin punching; 8. Second positioning magnet; 9. Concave square frame groove; 10. First nickel sheet; 11. Second nickel sheet; 12. Third positioning magnet; 13. Hollow welding hole; 14. Positioning groove. DETAILED DESCRIPTION

[0026] See also Figure 1-5 The utility model provides a technical solution: a spot welding jig box, comprising an upper jig box plate 3, a lower jig box plate 1 and a support plate 2, wherein the upper jig box plate 3 is located above the lower jig box plate 1, and the support plate 2 is located between the upper jig box plate 3 and the lower jig box plate 1.

[0027] In this embodiment: the structures of the jig box upper plate 3 and the jig box lower plate 1 are consistent, the surface of the jig box upper plate 3 is provided with pin holes 7, the inner wall of the support plate 2 is fixedly connected with pins 5, the surface of the jig box upper plate 3 is provided with positioning grooves 14, and the inner wall of the positioning grooves 14 is provided with hollow welding holes 13. This scheme effectively positions the battery pack and reduces the shaking of the battery pack during spot welding. At the same time, with the hollow welding holes 13, the success rate of spot welding is improved and the damage rate of the workpiece during processing is reduced. The jig box upper plate 3, the jig box lower plate 1 and the support plate 2 are all made of bakelite material, which can be reused for a long time, is resistant to welding sparks, and has stronger insulation and fire resistance, which is better than the battery bracket material.

[0028] Specifically, there are two support plates 2, and a handle 4 is fixedly connected to one side of one of the support plates 2 to facilitate lifting the device.

[0029] In this embodiment: the inner wall of the support plate 2 is fixedly connected with the first positioning magnet 6, the inner wall of the upper plate 3 of the jig box is fixedly connected with the second positioning magnet 8, the first positioning magnet 6 and the second positioning magnet 8 are magnetically attracted to each other, the upper plate 3 of the jig box and the lower plate 1 of the jig box are designed to be covered with positioning magnets, which adsorb and fix the first nickel sheet 10 and the second nickel sheet 11 so that they do not move.

[0030] Specifically, a first nickel sheet 10 is disposed on the inner wall of the positioning groove 14 , and a second nickel sheet 11 is disposed on the inner wall of the positioning groove 14 , so as to facilitate auxiliary positioning operations on the first nickel sheet 10 and the second nickel sheet 11 .

[0031] Specifically, an inner wall of the positioning groove 14 is provided with a concave square frame groove 9. The design of the concave square frame groove 9 makes it easier to observe and correct the position, thereby reducing the placement deviation of the nickel sheet.

[0032] Specifically, the inner wall of the positioning groove 14 is fixedly connected with the third positioning magnet 12 .

[0033] Specifically, the number of the pins 5 is four, and the four pins 5 are symmetrically arranged, so that they can be quickly integrated and assembled in a short time, and can also be quickly disassembled after electric welding, and a set of jigs can be reused.

[0034] Working principle: during use, the first nickel sheet 10 and the second nickel sheet 11 are placed in the jig box upper plate 3 and the jig box lower plate 1 in sequence, and then the battery pack is placed in the jig box lower plate 1, and then the pin 5 is aligned with the pin punching 7 and inserted to complete the connection between the jig box upper plate 3, the support plate 2 and the jig box lower plate 1, and then the first positioning magnet 6 is adsorbed with the second positioning magnet 8, and then the battery pack, the first nickel sheet 10 and the second nickel sheet 11 are spot welded through the hollow welding hole 13. This solution effectively positions the battery pack and reduces the shaking of the battery pack during spot welding. At the same time, with the hollow welding hole 13, the success rate of spot welding is improved, and the work during processing is reduced. The damage rate of the parts, the upper plate 3 of the jig box, the lower plate 1 of the jig box and the support plate 2 are all made of bakelite, which can be reused for a long time, resistant to electric welding sparks, and more solidly insulated and fireproof, and better than the battery bracket material. The upper plate 3 of the jig box and the lower plate 1 of the jig box are designed to be covered with positioning magnets, which adsorb and fix the first nickel sheet 10 and the second nickel sheet 11 without moving. The concave square frame groove 9 design makes it easier to observe and correct the position, and reduces the deviation of nickel sheet placement. Six positioning grooves 14 are provided on the upper plate 3 of the jig box and the lower plate 1 of the jig box, which is convenient for placing and processing six groups of battery packs at the same time. It can be quickly integrated and assembled in a short time, and can be quickly disassembled after electric welding, and a set of jigs can be reused.

Claims

1. A spot welding jig box, comprising an upper jig box plate (3), a lower jig box plate (1) and a support plate (2), characterized in that: The jig box upper plate (3) is located above the jig box lower plate (1), and the support plate (2) is located between the jig box upper plate (3) and the jig box lower plate (1). The jig box upper plate (3) and the jig box lower plate (1) have the same structure. A pin hole (7) is provided on the surface of the jig box upper plate (3), and a pin (5) is fixedly connected to the inner wall of the support plate (2). A positioning groove (14) is provided on the surface of the jig box upper plate (3), and a hollow welding hole (13) is provided on the inner wall of the positioning groove (14).

2. A spot welding jig box according to claim 1, characterized in that: There are two support plates (2), one side of one of the support plates (2) is fixedly connected to a handle (4).

3. A spot welding jig box according to claim 1, characterized in that: The inner wall of the support plate (2) is fixedly connected with a first positioning magnet (6), and the inner wall of the upper plate (3) of the jig box is fixedly connected with a second positioning magnet (8), and there is magnetic attraction between the first positioning magnet (6) and the second positioning magnet (8).

4. A spot welding jig box according to claim 1, characterized in that: The inner wall of the positioning groove (14) is provided with a first nickel sheet (10), and the inner wall of the positioning groove (14) is provided with a second nickel sheet (11).

5. The spot welding jig box according to claim 1, characterized in that: The inner wall of the positioning groove (14) is provided with an inwardly concave square frame groove (9).

6. A spot welding jig box according to claim 1, characterized in that: A third positioning magnet (12) is fixedly connected to the inner wall of the positioning groove (14).

7. The spot welding jig box according to claim 1, characterized in that: The number of the pins (5) is four, and the four pins (5) are symmetrically arranged.

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