High-stability battery pack spot welding fixing device

Abstract

The utility model discloses a high-stability battery pack spot welding fixing device which aims at solving the problems that in the prior art, time and labor are wasted in the clamping and positioning process, and a welding piece cannot be fixed. According to the technical scheme, the high-stability battery pack spot welding fixing device is characterized by comprising a first positioning box, the first positioning box comprises a bottom plate and side plates surrounding the periphery of the bottom plate, and fixing rods are fixed to the positions, at the four corners of the outer sides of the side plates, of the bottom plate in a penetrating mode; the fixing rod is slidably sleeved with a second positioning box on one side of the first positioning box, and the second positioning box is the same as the first positioning box in structure and opposite to the first positioning box. According to the high-stability battery pack spot welding fixing device, after a plurality of batteries are placed in the first positioning box, the auxiliary plate is arranged to assist in rapid arrangement, the auxiliary plate is pulled out to enable the second positioning box to move downwards, and the two ends of the batteries are located in the containing grooves in the two sides to abut against the limiting pieces; therefore, the battery is stably positioned by the first positioning box and the second positioning box, and the welding piece is pressed at the end part of the battery by matching with the limiting clamping plate.

Description

Technical Field

[0001] The utility model relates to the technical field of battery assembly, and more specifically, to a high-stability battery pack spot welding fixing device. Background Art

[0002] Battery packs are divided into series and parallel. Parallel battery packs require that each battery has the same voltage, and the output voltage is equal to the voltage of one battery. Parallel battery packs can provide stronger current. There are no excessive requirements for series battery packs. Multiple batteries are connected by welding to form a current loop. During the welding process, a fixture is required to position the battery.

[0003] During use, the battery needs to be clamped in multiple directions step by step. If the clamping force is not enough, the batch of batteries will be scattered during use, so the clamping and positioning process is time-consuming and laborious. In addition, the existing technology can only limit the position of the battery, but cannot fix the welding piece. Workers need to manually position the welding piece, which will affect the stability of the battery pack during welding. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a highly stable battery pack spot welding fixing device. After multiple batteries are placed in a first positioning box, they are quickly sorted with the assistance of an auxiliary plate. The auxiliary plate is pulled out and the second positioning box is moved downward. The two ends of the battery are located in the accommodating grooves on both sides and contact the limiting plates, so that the battery is stably positioned by the first positioning box and the second positioning box, and the welding plate is pressed onto the end of the battery in cooperation with the limiting clamp, thereby greatly improving the stability and efficiency of the battery pack spot welding.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions: a high-stability battery pack spot welding fixing device, comprising a first positioning box, the first positioning box comprising a bottom plate and side plates surrounded by the bottom plate, the bottom plate having four outer corners of the side plates penetrated and fixed with fixing rods, the fixing rod being slidably sleeved with a second positioning box having the same structure and being arranged opposite thereto on one side of the first positioning box, a plurality of accommodating grooves being arranged at intervals on the two bottom plates, and a plurality of limiting plates being arranged on the sides of the two bottom plates away from each other, the limiting plates covering part of the edges of the accommodating grooves to limit the batteries placed in the accommodating grooves; an auxiliary plate being inserted into the first positioning box, the auxiliary plate being attached to the bottom plate and being pulled along the length direction of the bottom plate; guide rods being symmetrically arranged on the sides of the first positioning box and the second positioning box being away from each other, a limiting clamping plate being slidably sleeved on the guide rod, and spot welding holes corresponding to the accommodating grooves being provided on the limiting clamping plate, the fixing rod being provided with a plurality of positioning holes along its length direction, and a positioning rod being inserted into the positioning hole.

[0006] The utility model is further configured as follows: the limiting splint is provided with a limiting groove for the limiting piece to be embedded in, and a magnetic attraction piece is arranged in the limiting groove, and the magnetic attraction piece is magnetically matched with the limiting piece.

[0007] The utility model is further configured as follows: a limiting block is arranged at one end of the positioning rod, and the diameter of the limiting block is greater than the diameter of the positioning hole.

[0008] The utility model is further configured as follows: both ends of the fixing rod are provided with anti-slip feet.

[0009] The utility model is further configured as follows: a push-pull block is arranged on one side of the auxiliary plate, and anti-slip grooves are arranged on the push-pull block.

[0010] In summary, the utility model has the following beneficial effects:

[0011] After multiple batteries are placed in the first positioning box, they are quickly sorted with the assistance of an auxiliary plate. The auxiliary plate is pulled out and the second positioning box is moved downward. The two ends of the battery are in the accommodating grooves on both sides and contact the limiting plates, so that the battery is stably positioned by the first positioning box and the second positioning box. The welding plate is pressed onto the end of the battery with the help of the limiting clamp, thereby greatly improving the stability and efficiency of the spot welding of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the fixing device of the utility model;

[0013] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0014] Figure 3 for Figure 1 An enlarged schematic diagram of part B.

[0015] In the figure: 1. first positioning box; 101. bottom plate; 102. side plate; 2. fixing rod; 3. second positioning box; 4. receiving groove; 5. limiting plate; 6. auxiliary plate; 7. guide rod; 8. limiting clamp; 9. spot welding hole; 10. positioning hole; 11. positioning rod; 12. limiting groove; 13. magnetic suction piece; 14. limiting block; 15. anti-slip support foot; 16. push-pull block. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0017] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] The utility model is described in detail below in conjunction with the accompanying drawings.

[0020] Reference Figure 1-Figure 3 A high-stability battery pack spot welding fixing device includes a first positioning box 1, the first positioning box 1 includes a bottom plate 101 and a side plate 102 surrounded by the bottom plate 101, and the bottom plate 101 is fixed with a fixing rod 2 penetrating the four corners of the outer side of the side plate 102, and the fixing rod 2 is slidably sleeved with a second positioning box 3 with the same structure and oppositely arranged on one side of the first positioning box 1, and a plurality of accommodating grooves 4 are spaced apart on the two bottom plates 101, and a plurality of limiting pieces 5 are fixedly arranged on the side of the two bottom plates 101 away from each other, and the limiting pieces 5 cover part of the edge of the accommodating groove 4 to limit the battery placed in the accommodating groove 4;

[0021] An auxiliary plate 6 is inserted into the first positioning box 1. The auxiliary plate 6 is attached to the bottom plate 101 and is pulled along the length direction of the bottom plate 101. A push-pull block 16 is fixedly provided on one side of the auxiliary plate 6. The push-pull block 16 has anti-slip grooves bonded thereon.

[0022] A guide rod 7 is symmetrically fixed on one side of the first positioning box 1 and the second positioning box 3 away from each other, a limiting clamp 8 is slidably sleeved on the guide rod 7, and a spot welding hole 9 corresponding to the accommodating groove 4 is opened on the limiting clamp 8, a plurality of positioning holes 10 are opened along the length direction of the fixing rod 2, and a positioning rod 11 is inserted into the positioning hole 10. In this embodiment, the number of the positioning rods 11 is 2, which are respectively inserted into the positioning holes 10 of the two relatively arranged fixing rods 2.

[0023] A limit block 14 is fixedly provided at one end of the positioning rod 11, and the diameter of the limit block 14 is larger than the diameter of the positioning hole 10. The limit block 14 set at one end will not affect the pulling and pulling of the positioning rod 11, and when the fixing device is flipped as needed, it can also prevent the positioning rod 11 from falling out of the positioning hole 10.

[0024] The limiting splint 8 is provided with a limiting groove 12 for the limiting piece 5 to be embedded in, and a magnetic attraction member 13 is fixed in the limiting groove 12. The magnetic attraction member 13 is magnetically matched with the limiting piece 5. The limiting piece 5 is made of iron and the magnetic attraction member 13 is a magnet.

[0025] Anti-skid feet 15 are fixedly provided at both ends of the fixing rod 2, so as to facilitate the stable placement of the fixing device for spot welding operation.

[0026] Working principle: First, place the fixing device with the first positioning box 1 facing upward, move the second positioning box 3 upward by a certain distance, and insert the positioning rod 11 into the corresponding positioning hole 10 to position the second positioning box 3 so that there is enough space between the first positioning box 1 and the second positioning box 3 to place the battery on the auxiliary plate 6. After the batteries are arranged, directly pull out the auxiliary plate 6, so that the batteries can fall into the corresponding receiving slots 4 below. Compared with directly placing the batteries one by one into the receiving slots 4, the operation will be more convenient;

[0027] Pull out the positioning rod 11 so that the second positioning box 3 is downward, and insert the positioning rod 11 into the positioning hole 10 at the appropriate position again, so that the two ends of the battery are clamped between the first positioning box 1 and the second positioning box 3, and the limiting pieces 5 on both sides respectively contact the two ends of the battery, and then place multiple welding pieces on the side of the second positioning box 3 away from the first positioning box 1. When welding, you only need to press the limiting clamping plate 8 by hand to fix the multiple welding pieces, and then perform electric welding through the spot welding hole 9; when it is necessary to spot weld the other end of the battery, turn over the entire fixing device, and fix the welding piece between the limiting clamping plate 8 and the first positioning box 1 in the same way;

[0028] In another embodiment, the limiting clamp 8 and the first positioning box 1 (the second positioning box 3) are locked by magnetic attraction. The locking method is simple, so that the staff does not need to manually press the limiting clamp 8 to fix the welding sheet, which further improves the convenience of use.

[0029] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A high-stability battery pack spot welding fixture, Features: The invention comprises a first positioning box (1), wherein the first positioning box (1) comprises a bottom plate (101) and a side plate (102) surrounding the bottom plate (101), wherein fixing rods (2) are penetrated and fixed at four corners of the outside of the side plate (102) on the bottom plate (101), wherein the fixing rod (2) is slidably sleeved on one side of the first positioning box (1) with a second positioning box (3) having the same structure and arranged opposite thereto, wherein a plurality of accommodating grooves (4) are arranged at intervals on the two bottom plates (101), and a plurality of limiting plates (5) are arranged on the sides of the two bottom plates (101) away from each other, wherein the limiting plates (5) cover part of the edge of the accommodating groove (4). The first positioning box (1) has an edge to limit the position of the battery placed in the receiving groove (4); an auxiliary plate (6) is inserted into the first positioning box (1), and the auxiliary plate (6) is attached to the bottom plate (101) and is pulled along the length direction of the bottom plate (101); a guide rod (7) is symmetrically arranged on the side away from each other of the first positioning box (1) and the second positioning box (3), a limiting clamping plate (8) is slidably sleeved on the guide rod (7), and a spot welding hole (9) corresponding to the receiving groove (4) is opened on the limiting clamping plate (8); the fixing rod (2) has a plurality of positioning holes (10) along its length direction, and a positioning rod (11) is inserted into the positioning hole (10).

2. A high-stability battery pack spot welding fixing device according to claim 1, Features: The limiting clamping plate (8) is provided with a limiting groove (12) for the limiting plate (5) to be embedded, and a magnetic attraction member (13) is arranged in the limiting groove (12), and the magnetic attraction member (13) is magnetically matched with the limiting plate (5).

3. A high-stability battery pack spot welding fixing device according to claim 1, Features: A limiting block (14) is provided at one end of the positioning rod (11), and the diameter of the limiting block (14) is greater than the diameter of the positioning hole (10).

4. A high-stability battery pack spot welding fixing device according to claim 1, Features: Anti-slip feet (15) are provided at both ends of the fixing rod (2).

5. A high-stability battery pack spot welding fixing device according to claim 1, Features: A push-pull block (16) is provided on one side of the auxiliary plate (6), and anti-slip grooves are provided on the push-pull block (16).

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