Positioning tool for battery piece welding

Abstract

The utility model discloses a kind of positioning tool for battery piece welding, including bottom plate, the bottom plate upper side is equipped with fixed plate, the bottom plate is located fixed plate side and is equipped with placing groove, the bottom plate is located and is equipped with first hydraulic cylinder in placing groove both sides, first hydraulic cylinder stroke end is fixedly connected with movable plate, the movable plate upper side is equipped with mounting plate, the mounting plate is close to first hydraulic cylinder side both ends and is equipped with second hydraulic cylinder, two second hydraulic cylinder stroke ends located the same side of the bottom plate are fixedly connected with clamping plate through mounting plate, the placing groove is equipped with threaded rod in fixed plate side middle part away from, threaded rod is fixedly connected with push plate in placing groove inner one end. This kind of positioning tool structure is simple, and general performance is good, the battery piece of different size can be positioned, and positioning precision is high, effectively guarantee the welding quality of battery piece.

Description

Technical Field

[0001] This utility model relates to the field of battery cell welding technology, and in particular to a positioning fixture for battery cell welding. Background Technology

[0002] Welding is a critical process in the production and processing of solar cells, and its quality directly affects the performance and lifespan of the cells. A prerequisite for high-quality welding is that the cells maintain precise positioning during the welding process to avoid welding deviations due to displacement. Existing solar cell welding positioning fixtures are mostly simple in structure, typically using only a single clamping or limiting method to position the cells. This single-dimensional positioning method makes it difficult to achieve precise fixation of the cells in multiple horizontal directions. Especially when dealing with solar cells of different sizes and specifications, their versatility is poor, requiring frequent replacement of fixture components, reducing production efficiency. Furthermore, the adjustment structure of some fixtures lacks stability, easily loosening during welding, leading to cell displacement, affecting welding accuracy, and increasing product defect rates. Therefore, we propose a positioning fixture for solar cell welding. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a positioning fixture for welding battery cells. This invention solves the issues raised by existing battery cell welding positioning fixtures, which are mostly simple in structure and typically use only a single clamping or limiting method to position the battery cells. This single positioning method makes it difficult to achieve precise fixation of the battery cells in multiple horizontal directions. Especially when dealing with battery cells of different sizes and specifications, their versatility is poor, requiring frequent replacement of fixture components, reducing production efficiency. Furthermore, the adjustment structure of some fixtures lacks stability, easily loosening during welding, leading to battery cell displacement, affecting welding accuracy, and increasing product defect rates.

[0004] This utility model discloses a positioning fixture for welding battery cells, comprising a base plate, a fixing plate on one side above the base plate, a placement groove on the side of the base plate adjacent to the fixing plate, and first hydraulic cylinders on both sides of the base plate adjacent to the placement groove. The stroke ends of the first hydraulic cylinders are fixedly connected to a movable plate. An mounting plate is provided above the movable plate, and second hydraulic cylinders are provided at both ends of the mounting plate near the first hydraulic cylinders. The stroke ends of the two second hydraulic cylinders located on the same side of the base plate pass through the mounting plate and are fixedly connected to a clamping plate. A threaded rod is provided in the middle of the side of the placement groove away from the fixing plate, and one end of the threaded rod is movably connected to a push plate inside the placement groove.

[0005] In the above scheme, the end of the threaded rod away from the push plate is fixedly connected to the rotating block.

[0006] In the above scheme, sliders are provided on both sides below the movable plate, and guide rails matching the sliders are provided above the base plate.

[0007] In the above scheme, reinforcing brackets are provided on both sides of the lower end of the mounting plate, and the lower part of the reinforcing brackets is fixedly connected to the movable plate.

[0008] In the above scheme, a rubber pad is provided on the side of the clamp away from the mounting plate.

[0009] In the above scheme, the mounting plate is connected to the first guide rods on both sides of the second hydraulic cylinder, and the first guide rods are fixedly connected to the clamping plate.

[0010] In the above scheme, the placement groove is located on both sides of the threaded rod and a second guide rod is inserted into it. The second guide rod is fixedly connected to the push plate.

[0011] In the above scheme, mounting holes are provided at all four corners of the base plate.

[0012] The advantages and beneficial effects of this utility model are as follows: This utility model provides a positioning fixture for welding battery cells, which forms a multi-directional positioning structure through a fixed plate, a push plate, and clamping plates on both sides. The fixed plate serves as a reference positioning edge, the push plate can position the battery cell along the length of the placement groove under the drive of the threaded rod, and the clamping plates on both sides can clamp and position the battery cell along the width of the placement groove under the drive of the second hydraulic cylinder. This achieves multi-dimensional precise positioning of the battery cell in the horizontal direction, effectively avoiding displacement deviation during the welding process. The first hydraulic cylinder can drive the movable plate to move the mounting plate and clamping plates along the guide rail, thereby adjusting the initial distance between the clamping plates on both sides. Combined with the position adjustment of the push plate, it can adapt to the positioning requirements of battery cells of different sizes and specifications, eliminating the need for frequent replacement of fixture components and improving production efficiency. This positioning fixture has a simple structure, good versatility, can position battery cells of different sizes with high positioning accuracy, and effectively ensures the welding quality of the battery cells. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of part A of the present invention; Figure 3 This is a schematic diagram of part B of the present invention.

[0015] In the diagram: 1. Base plate; 2. Fixed plate; 3. Placement slot; 4. First hydraulic cylinder; 5. Movable plate; 6. Mounting plate; 7. Second hydraulic cylinder; 8. Clamping plate; 9. Threaded rod; 10. Push plate; 11. Rotating block; 12. Slider; 13. Guide rail; 14. Reinforcing bracket; 15. Rubber pad; 16. First guide rod; 17. Second guide rod; 18. Mounting hole. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0017] like Figure 1-3 As shown, this utility model is a positioning fixture for welding battery cells, including a base plate 1. A fixing plate 2 is provided on one side of the base plate 1. A placement groove 3 is provided on the side of the base plate 1 adjacent to the fixing plate 2. First hydraulic cylinders 4 are provided on both sides of the base plate 1 adjacent to the placement groove 3. The stroke ends of the first hydraulic cylinders 4 are fixedly connected to a movable plate 5. An mounting plate 6 is provided above the movable plate 5. When the first hydraulic cylinders 4 are working, they can push the movable plate 5 to move reciprocally in the horizontal direction. Through the transmission of the movable plate 5, the mounting plate 6 also moves accordingly. Second hydraulic cylinders 7 are provided at both ends of the mounting plate 6 near the first hydraulic cylinders 4. Two second hydraulic cylinders 7 on the same side of the base plate 1 have their stroke ends passing through the mounting plate 6 and fixedly connected to the clamping plate 8. When the second hydraulic cylinders 7 are working, they push the clamping plate 8 to move horizontally. When the two clamping plates 8 are close to each other, the battery cells to be welded can be welded through the interaction between the two clamping plates 8. A threaded rod 9 is provided in the middle of the side of the placement groove 3 away from the fixed plate 2. One end of the threaded rod 9 is located in the placement groove 3 and is movably connected to the push plate 10. The threaded rod 9 is threadedly connected to the placement groove 3. When the threaded rod 9 is rotated, it can push the push plate 10 to move back and forth horizontally.

[0018] The threaded rod 9 is fixedly connected to the rotating block 11 at the end away from the push plate 10. By setting the rotating block 11, it is convenient for the operator to manually rotate the threaded rod 9, thereby pushing the push plate 10 to position and adjust the battery cell, making the operation convenient and labor-saving.

[0019] The movable plate 5 is provided with sliders 12 on both sides below it, and the bottom plate 1 is provided with guide rails 13 that match the sliders 12. The cooperation between the sliders 12 and the guide rails 13 can guide the movement of the movable plate 5, ensuring that the movable plate 5 moves smoothly along a straight line under the drive of the first hydraulic cylinder 4, thereby improving the positioning accuracy.

[0020] The mounting plate 6 is provided with reinforcing brackets 14 on both sides of its lower end. The reinforcing brackets 14 are fixedly connected to the movable plate 5 below. The reinforcing brackets 14 can enhance the connection strength between the mounting plate 6 and the movable plate 5, prevent the mounting plate 6 from shaking or deforming when the second hydraulic cylinder 7 is working, and improve the overall stability of the tooling.

[0021] The clamping plate 8 is provided with a rubber pad 15 on the side away from the mounting plate 6. The rubber pad 15 has a certain elasticity. When the clamping plate 8 clamps the battery cell, it can avoid direct rigid contact between the clamping plate 8 and the battery cell, prevent the surface of the battery cell from being scratched, and at the same time increase the friction between the clamping plate 8 and the battery cell, thereby improving the clamping stability.

[0022] The mounting plate 6 is connected to first guide rods 16 on both sides of the second hydraulic cylinder 7. The first guide rods 16 are fixedly connected to the clamping plate 8. The first guide rods 16 can restrict the movement direction of the clamping plate 8, ensuring that the clamping plate 8 moves smoothly in a direction perpendicular to the mounting plate 6 under the drive of the second hydraulic cylinder 7, avoiding the clamping plate 8 from deviating, and ensuring the accuracy of clamping and positioning.

[0023] The placement slot 3 is located on both sides of the threaded rod 9, and the second guide rod 17 is fixedly connected to the push plate 10. The second guide rod 17 can guide the movement of the push plate 10, ensuring that the push plate 10 moves in a straight line under the push of the threaded rod 9, avoiding the push plate 10 from tilting, thereby ensuring the pushing and positioning accuracy of the battery cell.

[0024] The base plate 1 is provided with mounting holes 18 at each of its four corners. The base plate 1 can be fixedly installed with the welding equipment through the mounting holes 18 to ensure that the tooling does not shift as a whole during the welding process and to improve the stability of the tooling.

[0025] Specifically, in this utility model, according to the size of the battery cell to be welded, the first hydraulic cylinder 4 is activated, and the first hydraulic cylinder 4 drives the movable plate 5 to move along the guide rail 13, thereby adjusting the distance between the two mounting plates 6 and the clamping plate 8 to adapt to the width of the battery cell. Then, the battery cell to be welded is placed in the placement groove 3, so that one side of the battery cell is in contact with the fixing plate 2. Next, the rotating block 11 is rotated, and the rotating block 11 drives the threaded rod 9 to rotate. The threaded rod 9 pushes the push plate 10 to move along the second guide rod 17 towards the fixing plate 2 until the push plate 10 is in contact with the other side of the battery cell, completing the positioning of the battery cell in the length direction. Finally, the second hydraulic cylinder 7 is activated, and the second hydraulic cylinder 7 drives the clamping plate 8 to move along the first guide rod 16 towards the battery cell, so that the clamping plates 8 on both sides clamp the battery cell through the rubber pad 15, completing the positioning of the battery cell in the width direction. At this time, the welding operation of the battery cell can be carried out.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning fixture for welding battery cells, comprising a base plate (1), characterized in that, A fixed plate (2) is provided on one side above the base plate (1). A placement groove (3) is provided on one side of the base plate (1) located on the fixed plate (2). A first hydraulic cylinder (4) is provided on both sides of the base plate (1) located on the placement groove (3). The stroke end of the first hydraulic cylinder (4) is fixedly connected to the movable plate (5). An mounting plate (6) is provided above the movable plate (5). A second hydraulic cylinder (7) is provided at both ends of the mounting plate (6) near the first hydraulic cylinder (4). The stroke ends of the two second hydraulic cylinders (7) located on the same side of the base plate (1) pass through the mounting plate (6) and are fixedly connected to the clamping plate (8). A threaded rod (9) is provided in the middle of the side of the placement groove (3) away from the fixed plate (2). One end of the threaded rod (9) located in the placement groove (3) is movably connected to the push plate (10).

2. The positioning fixture for welding battery cells according to claim 1, characterized in that, The threaded rod (9) is fixedly connected to the rotating block (11) at the end away from the push plate (10).

3. The positioning fixture for welding battery cells according to claim 1, characterized in that, The movable plate (5) has sliders (12) on both sides below it, and the base plate (1) has a guide rail (13) that matches the sliders (12) on top.

4. The positioning fixture for welding battery cells according to claim 1, characterized in that, The mounting plate (6) is provided with reinforcing brackets (14) on both sides of its lower end, and the reinforcing brackets (14) are fixedly connected to the movable plate (5) below.

5. A positioning fixture for welding battery cells according to claim 1, characterized in that, The clamping plate (8) has a rubber pad (15) on the side away from the mounting plate (6).

6. The positioning fixture for welding battery cells according to claim 1, characterized in that, The mounting plate (6) is located on both sides of the second hydraulic cylinder (7) and a first guide rod (16) is inserted therein. The first guide rod (16) is fixedly connected to the clamping plate (8).

7. The positioning fixture for welding battery cells according to claim 1, characterized in that, The placement groove (3) is located on both sides of the threaded rod (9) and a second guide rod (17) is inserted. The second guide rod (17) is fixedly connected to the push plate (10).

8. The positioning fixture for welding battery cells according to claim 1, characterized in that, The base plate (1) has mounting holes (18) at all four corners.

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