Dual-purpose battery welding jig suitable for laser welding and common resistance welding

Abstract

The utility model relates to the technical field of battery welding, in particular to a dual-purpose battery welding jig suitable for laser and common resistance welding, which comprises a clamp base, five groups of battery and pole piece positioning holes are arranged on the surface of the clamp base, and negative electrode welding pieces are arranged in the battery and pole piece positioning holes. A bare battery is arranged in the battery and pole piece positioning hole and is positioned on the surface of the negative electrode soldering lug; a positive electrode soldering lug is arranged on the surface of the bare battery; a cover plate covers the clamp base, and a tabletting strip is arranged at the top end of the cover plate. According to the utility model, the sheet pressing strip is used or not used, so that the sheet pressing strip can be used for different welding processes, a very good welding size and higher production efficiency are ensured, the original welding of 1pcs / time is changed into the welding of 5pcs / time, and the production time is reduced from 14 seconds / Pcs to 8 seconds / Pcs.

Description

Technical Field

[0001] The utility model relates to the technical field of battery welding, in particular to a dual-purpose battery welding jig suitable for laser and common resistance welding. Background Art

[0002] A battery is a cup, trough or other container or part of a composite container that contains an electrolyte solution and metal electrodes to generate an electric current. It is a device that can convert chemical energy into electrical energy. A welding jig is required when welding a battery.

[0003] The welding jigs currently in use can only meet one welding process, either used in resistance welding or laser welding. The fixtures for laser welding and resistance welding are not interchangeable, which results in a large number of fixtures. However, at the same time, since they are used in the production of the same product, many dimensions of the fixture structure are the same, and there is a large amount of repeated processing for fixture processing. Moreover, the current welding jigs can only perform a single welding at a time, and the production efficiency is low. Utility Model Content

[0004] The utility model aims to provide a dual-purpose battery welding jig suitable for laser and ordinary resistance welding, so as to solve the problem in the above background technology that laser welding and resistance welding cannot be used universally, only single welding can be performed, and the production efficiency is low.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual-purpose battery welding jig suitable for laser and ordinary resistance welding, comprising a clamp base, the surface of the clamp base is provided with five groups of battery and pole piece positioning holes, and negative electrode welding pieces are placed inside the battery and pole piece positioning holes, and bare cells are placed inside the battery and pole piece positioning holes and on the surface of the negative electrode welding pieces, and positive electrode welding pieces are placed on the surface of the bare cells; a cover plate is covered on the top of the clamp base, and the cover plate is used to limit the positive electrode welding piece; a pressing strip is provided on the top of the cover plate, and the pressing strip is used to press the positive electrode welding piece and the negative electrode welding piece during laser welding to avoid poor welding caused by gaps between the positive electrode welding piece and the negative electrode welding piece and the bare cell.

[0006] Preferably, the side walls of the clamp base are inlaid with a plurality of groups of side attraction magnets, which are used for magnetic attraction and fixing of the clamp base when it is placed.

[0007] Preferably, positioning columns are embedded at three corner positions of the surface of the clamp base, and the positioning columns are used for positioning when the cover plate and the clamp base are covered.

[0008] Preferably, the surfaces of the clamp base and the cover plate are both inlaid with six groups of covering magnets, and when the clamp base and the cover plate are covered, the covering magnets on the surface of the clamp base and the covering magnets on the surface of the cover plate are magnetically fixed to each other.

[0009] Preferably, a beading groove is provided on the surface of the cover plate, and the beading groove is used for placing the beading strip, and six groups of beading magnets are inlaid inside the beading groove.

[0010] Preferably, six groups of pressing magnets are inlaid at the bottom of the pressing strip, and when the pressing strip and the cover plate are buckled together, the pressing strip magnets and the pressing magnets are magnetically attracted and fastened to each other.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the dual-purpose battery welding jig suitable for laser and ordinary resistance welding is provided with a pressing strip. During specific implementation, whether to use the pressing strip is selected according to the production process. If laser and welding are used, the pressing strip needs to be placed in the pressing strip groove, and the pressing strip magnet and the pressing strip magnet are magnetically fixed to each other, thereby pressing the parts to ensure that there is no gap between the parts and the welding surface, thereby achieving a good welding effect; if resistance welding is used, there is no need to place the pressing strip, and the welding machine can be directly placed for welding; the utility model can be used for different welding processes by using a pressing strip or not using a pressing strip, while ensuring a very good welding size and a higher production efficiency, changing the original 1pcs / time welding to 5pcs / time welding, and the production working hours are reduced from 14 seconds / Pcs to 8 seconds / Pcs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the utility model in a separated state;

[0014] Figure 3 It is a schematic diagram of the explosion structure of the utility model.

[0015] In the figure: 1. clamp base; 11. battery and pole piece positioning hole; 12. positioning column; 13. cover magnet; 14. side suction magnet; 2. cover plate; 21. pressure strip groove; 22. pressure strip magnet; 3. pressure strip; 31. pressure strip magnet; 4. bare battery; 5. negative electrode welding piece; 6. positive electrode welding piece. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. In addition, the terms "first", "second", "third", "upper, lower, left, right", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] The utility model provides a dual-purpose battery welding fixture suitable for laser and ordinary resistance welding. Figure 1 as well as Figure 3 As shown, it includes a clamp base 1, and five groups of battery and pole piece positioning holes 11 are arranged on the surface of the clamp base 1, and negative electrode welding pieces 5 are placed inside the battery and pole piece positioning holes 11, and bare cells 4 are placed inside the battery and pole piece positioning holes 11 and on the surface of the negative electrode welding pieces 5, and positive electrode welding pieces 6 are placed on the surface of the bare cells 4; the side walls of the clamp base 1 are inlaid with several groups of side attraction magnets 14, and the side attraction magnets 14 are used for magnetic attraction and fixing when the clamp base 1 is placed.

[0018] During implementation, the negative electrode welding tab 5 and the bare cell 4 are placed into the battery and pole piece positioning hole 11 in the fixture base 1 in turn, and the negative electrode welding tab 5 and the bare cell 4 are positioned using the battery and pole piece positioning hole 11, so that the negative electrode welding tab 5 and the bare cell 4 are both located in the correct and appropriate positions.

[0019] Furthermore, if Figure 2 as well as Figure 3 As shown, a cover plate 2 is covered on the top of the clamp base 1, and the cover plate 2 is used to limit the positive electrode welding piece 6; six groups of covering magnets 13 are inlaid on the surfaces of the clamp base 1 and the cover plate 2, and when the clamp base 1 and the cover plate 2 are covered, the covering magnets 13 on the surface of the clamp base 1 and the covering magnets 13 on the surface of the cover plate 2 are magnetically fixed to each other; positioning columns 12 are inlaid at the three corner positions of the surface of the clamp base 1, and the positioning columns 12 are used for positioning when the cover plate 2 and the clamp base 1 are covered.

[0020] During implementation, the cover plate 2 is put on, and the closing magnet 13 is used to fix it magnetically. During the fixing process, it is positioned by the positioning column 12. After the cover plate 2 is put on, the positive electrode welding piece 6 is placed into the acupoint on the cover plate 2. The acupoint of the cover plate 2 is completely matched with the outer size of the part. After being placed in, the position and size of the positive electrode welding piece 6 will be fixed.

[0021] Furthermore, if Figure 2 as well as Figure 3 As shown, a pressing strip 3 is provided at the top of the cover plate 2, and the pressing strip 3 is used to press the positive electrode welding sheet 6 and the negative electrode welding sheet 5 during laser welding to avoid poor welding caused by gaps between the positive electrode welding sheet 6 and the negative electrode welding sheet 5 and the bare battery 4; a pressing strip groove 21 is provided on the surface of the cover plate 2, and the pressing strip groove 21 is used for placing the pressing strip 3, and six groups of pressing strip magnets 22 are inlaid inside the pressing strip groove 21; six groups of pressing strip magnets 31 are inlaid at the bottom of the pressing strip 3, and when the pressing strip 3 and the cover plate 2 are buckled, the pressing strip magnets 22 and the pressing strip magnets 31 are magnetically attracted to each other and fastened.

[0022] The utility model can choose whether to use the pressing strip 3 according to the production process. If laser and welding are used, the pressing strip 3 needs to be placed in the pressing strip groove 21, and the pressing strip magnet 22 and the pressing strip magnet 31 are magnetically fixed to each other, thereby pressing the parts to ensure that there is no gap between the parts and the welding surface, thereby achieving a good welding effect. If resistance welding is used, there is no need to place the pressing strip 3, and it can be directly placed in the welding machine for welding.

[0023] Working principle: In the fixture base 1, the negative electrode welding piece 5 and the bare battery 4 are placed into the battery and pole piece positioning hole 11 in turn, and the negative electrode welding piece 5 and the bare battery 4 are positioned using the battery and pole piece positioning hole 11, so that the negative electrode welding piece 5 and the bare battery 4 are both located in the correct and appropriate positions; then the cover plate 2 is covered, and the covering magnet 13 is used to fix them by magnetic attraction when covering, and the positioning column 12 is used to position them during the fixing process. After covering the cover plate 2, the positive electrode welding piece 6 is placed into the hole on the cover plate 2. The hole of the cover plate 2 is completely processed to match the outer dimensions of the parts. After being placed in, the position and size of the positive electrode welding piece 6 will be fixed.

[0024] Afterwards, according to the production process, choose whether to use the pressing strip 3. If laser and welding are used, the pressing strip 3 needs to be placed in the pressing strip groove 21, and the pressing strip magnet 22 and the pressing strip magnet 31 are magnetically fixed to each other, thereby pressing the parts to ensure that there is no gap between the parts and the welding surface, thereby achieving a good welding effect; if resistance welding is used, there is no need to insert the pressing strip 3, and it can be directly put into the welding machine for welding.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A dual-purpose battery welding fixture suitable for laser and ordinary resistance welding, comprising a fixture base (1), characterized in that: The surface of the clamp base (1) is provided with five groups of battery and pole piece positioning holes (11), and negative electrode welding pieces (5) are placed inside the battery and pole piece positioning holes (11), and bare batteries (4) are placed inside the battery and pole piece positioning holes (11) and on the surface of the negative electrode welding pieces (5), and positive electrode welding pieces (6) are placed on the surface of the bare batteries (4); a cover plate (2) is covered on the top of the clamp base (1), and the cover plate (2) is used for limiting the position of the positive electrode welding pieces (6); a pressing strip (3) is provided on the top of the cover plate (2), and the pressing strip (3) is used to press the positive electrode welding pieces (6) and the negative electrode welding pieces (5) during laser welding, so as to avoid the phenomenon of poor welding caused by the gap between the positive electrode welding pieces (6) and the negative electrode welding pieces (5) and the bare batteries (4).

2. A dual-purpose battery welding jig suitable for laser and ordinary resistance welding according to claim 1, characterized in that: The side wall of the clamp base (1) is inlaid with a plurality of groups of side attraction magnets (14), and the side attraction magnets (14) are used for magnetic attraction and fixing when the clamp base (1) is placed.

3. A dual-purpose battery welding jig suitable for laser and ordinary resistance welding according to claim 1, characterized in that: Positioning columns (12) are embedded at three corner positions on the surface of the clamp base (1), and the positioning columns (12) are used for positioning when the cover plate (2) and the clamp base (1) are covered.

4. A dual-purpose battery welding jig suitable for laser and ordinary resistance welding according to claim 1, characterized in that: The surfaces of the clamp base (1) and the cover plate (2) are both inlaid with six groups of covering magnets (13), and when the clamp base (1) and the cover plate (2) are covered, the covering magnets (13) on the surface of the clamp base (1) and the covering magnets (13) on the surface of the cover plate (2) are magnetically attracted and fixed to each other.

5. The dual-purpose battery welding jig suitable for laser and ordinary resistance welding according to claim 1, characterized in that: The surface of the cover plate (2) is provided with a pressure strip groove (21), which is used for placing the pressure strip (3), and six groups of pressure strip magnets (22) are embedded inside the pressure strip groove (21).

6. A dual-purpose battery welding jig suitable for laser and ordinary resistance welding according to claim 1, characterized in that: Six groups of tablet pressing magnets (31) are inlaid at the bottom of the tablet pressing strip (3), and when the tablet pressing strip (3) and the cover plate (2) are buckled together, the tablet pressing strip magnets (22) and the tablet pressing magnets (31) are magnetically attracted and fastened to each other.

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