Battery cell laser welding production line

Abstract

The utility model discloses a battery cell laser welding production line which comprises a base plate and a door frame, and a first roller frame is fixedly installed on the top face of the base plate. The electric vehicle storage battery welding device has the advantages that the clamping base and the laser welding head are arranged, the first conveying belt is driven by the stepping motor to move at a fixed distance, a worker can place the arranged electric vehicle storage batteries into the clamping base, the clamping base drives the electric vehicle storage batteries to move to the position below the door frame, and the electric cylinder moves downwards; the electric vehicle storage battery is moved and positioned greatly conveniently through the clamping base moving at a fixed distance, the welding accuracy is improved, meanwhile, the multiple sets of portal frames are arranged, the laser welding heads on the inner sides of the portal frames at different positions are aligned with different positions of the electric vehicle storage battery cells, and the welding accuracy is improved. The electric core welding robot is high in working efficiency and stable in working, and compared with a traditional welding robot, the electric core welding robot is simpler in structure and lower in use and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery cell welding technology for electric vehicles, and more specifically, to a cell laser welding production line. Background Technology

[0002] With the comprehensive development of my country's lithium battery industry, more and more two-wheeled and three-wheeled electric vehicles are choosing to use lithium batteries as their power batteries. Lithium batteries include structures such as cells, and the cells need to be welded during assembly.

[0003] Currently, the mainstream welding method is laser welding. Laser welding is fast, stable, and reliable, and welding robots are commonly used for welding. Welding robots are distributed on both sides of the production line, and the laser welding head is moved by the movement of the robotic arm to perform welding. However, the structure of welding robots is relatively complex, and the production and maintenance costs are high, so further improvements can be made. At the same time, the unloading robots commonly used during unloading are also relatively complex in structure, increasing the cost for enterprises, and further improvements can also be made. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a cell laser welding production line, which has the advantages of simple structure, stable operation, and low cost, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the advantages of simple structure, stable operation, and low cost, the specific technical solution adopted by this utility model is as follows: A cell laser welding production line includes a base plate and a gantry. A first roller frame is fixedly installed on the top surface of the base plate, and a first drive roller is rotatably connected between the first roller frames. A first conveyor belt is sleeved on the outer side of the first drive roller. A card seat is fixedly installed on the outer surface of the first conveyor belt. A gantry is fixedly mounted on the top surface of the base plate outside the first conveyor belt. An electric cylinder is fixedly installed on the top surface of the gantry, and a laser welding head is fixedly installed on the bottom surface of the moving rod of the electric cylinder. A stepper motor is fixedly installed on the back side of the first roller frame, and the output end of the stepper motor is fixedly connected to one end of the roller shaft of the first drive roller.

[0008] Furthermore, the card holder is made of rubber, and the surface of the card holder is provided with side grooves.

[0009] Furthermore, multiple sets of gantry are arranged at equal intervals, and the number of gantry corresponds to the number of laser welding heads.

[0010] Furthermore, multiple sets of card holders are arranged at equal intervals, and the size of the card holders matches the size of the electric vehicle battery pack.

[0011] Furthermore, a second roller frame is fixedly mounted on one end of the top surface of the base plate below one end of the first conveyor belt, and a second drive roller is rotatably connected between the second roller frames, and a second conveyor belt is sleeved on the outer surface of the second drive roller.

[0012] Furthermore, the side grooves penetrate the top surface of the card holder, and the side grooves are densely spaced at equal intervals.

[0013] Furthermore, a drive motor is fixedly installed on the back face of the second roller frame, and the output end of the drive motor is fixedly connected to one end of the roller shaft of the second drive roller.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a cell laser welding production line, which has the following beneficial effects:

[0016] (1) This utility model is equipped with a card holder and a laser welding head. The first conveyor belt moves a fixed distance under the drive of the stepper motor. The operator can put the arranged electric vehicle batteries into the card holder. The card holder moves the electric vehicle batteries to the bottom of the gantry. The electric cylinder moves down and drives the laser welding head to perform laser welding on the electric vehicle battery cells. The fixed-distance moving card holder greatly facilitates the movement and positioning of the electric vehicle batteries and improves the accuracy of welding. At the same time, the gantry is arranged with multiple sets. The laser welding heads on the inner side of the gantry at different positions are aligned with different positions of the electric vehicle battery cells to complete the full welding of the cells. The working efficiency is high and the operation is stable. Compared with traditional welding robots, the structure is simpler and the use and maintenance costs are lower.

[0017] (2) This utility model is provided with a card seat and a side groove. The card seat is provided with a side groove on the surface of the card seat. The card seat is made of rubber. When it is flipped, the card seat is squeezed by the drive roller and deformed, so that the electric vehicle battery can fall onto the top surface of the second conveyor belt and complete the automatic unloading. This eliminates the trouble of using a robotic arm for unloading, further simplifies the production structure, and reduces the cost of use and maintenance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a cell laser welding production line according to an embodiment of the present utility model;

[0020] Figure 2 This is a front view of a cell laser welding production line according to an embodiment of the present utility model;

[0021] Figure 3 This is a rear view of a cell laser welding production line according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the card holder according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Base plate; 2. First conveyor belt; 3. First roller frame; 4. First drive roller; 5. Card holder; 6. Electric cylinder; 7. Laser welding head; 8. Gantry; 9. Second roller frame; 10. Second drive roller; 11. Second conveyor belt; 12. Stepper motor; 13. Drive motor; 14. Side trough. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a cell laser welding production line is provided.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, a cell laser welding production line according to an embodiment of the present invention includes a base plate 1 and a gantry 8. A first roller frame 3 is fixedly installed on the top surface of the base plate 1, and a first drive roller 4 is rotatably connected between the first roller frames 3. The first drive roller 4 is rotatably connected to the first roller frame 3 through a roller shaft, and a first conveyor belt 2 is sleeved on the outer side of the first drive roller 4. A clamp 5 is fixedly installed on the outer surface of the first conveyor belt 2. A gantry 8 is fixedly mounted on the top surface of the base plate 1 outside the first conveyor belt 2, and an electric cylinder 6 is fixedly installed on the top surface of the gantry 8. A laser welding head 7 is fixedly installed on the bottom surface of the moving rod of the electric cylinder 6. A stepper motor 12 is fixedly installed on the back side of the first roller frame 3, and the output end of the stepper motor 12 is connected to the roller shaft of the first drive roller 4. With a fixed connection at the end, the first conveyor belt 2 moves a fixed distance under the drive of the stepper motor 12. The operator can put the arranged electric vehicle batteries into the cassette 5. The cassette 5 moves the electric vehicle batteries to the bottom of the gantry 8, and the electric cylinder 6 moves down, driving the laser welding head 7 to perform laser welding on the electric vehicle battery cells. The fixed-distance moving cassette 5 greatly facilitates the movement and positioning of the electric vehicle batteries and improves the accuracy of welding. At the same time, the gantry 8 is arranged with multiple sets of laser welding heads 7 on the inner side of the gantry 8 at different positions, which are aligned with different positions of the electric vehicle battery cells to complete the full welding of the cells. The work efficiency is high and the operation is stable. Compared with traditional welding robots, the structure is simpler and the use and maintenance costs are lower.

[0028] In one embodiment, the card holder 5 is made of rubber, and the surface of the card holder 5 is provided with a side groove 14. The card slot surface is provided with a side groove 14. The card holder 5 is made of rubber. When it is flipped, the card holder 5 is squeezed by the drive roller and deformed, so that the electric vehicle battery can fall onto the top surface of the second conveyor belt 11 to complete the automatic unloading. This eliminates the trouble of using a robotic arm for unloading, further simplifies the production structure, and reduces the cost of use and maintenance.

[0029] In one embodiment, multiple sets of gantry 8 are arranged at equal intervals, and the number of gantry 8 corresponds to the number of laser welding heads 7. The gantry 8 are arranged according to the number of cell welding points.

[0030] In one embodiment, multiple sets of card holders 5 are arranged at equal intervals, and the size of the card holders 5 matches the size of the electric vehicle battery pack, which facilitates the fixing and limiting of the card holders 5.

[0031] In one embodiment, a second roller frame 9 is fixedly mounted on one end of the top surface of the base plate 1 below one end of the first conveyor belt 2, and a second drive roller 10 is rotatably connected between the second roller frames 9. A second conveyor belt 11 is sleeved on the outer surface of the second drive roller 10. The second conveyor belt 11 has a certain deformation capacity, which can buffer the impact of the falling battery and prevent the battery from being damaged by the fall.

[0032] In one embodiment, the side groove 14 extends through the top surface of the card holder 5, and the side groove 14 is densely spaced at equal intervals, so that the card holder 5 can be deformed when it is flipped.

[0033] In one embodiment, a drive motor 13 is fixedly installed on the back face of the second roller frame 9, and the output end of the drive motor 13 is fixedly connected to one end of the roller shaft of the second drive roller 10. This is a common drive structure and will not be described in detail here.

[0034] Working principle: The first conveyor belt 2 moves a fixed distance under the drive of the stepper motor 12. The operator can put the arranged electric vehicle batteries into the card holder 5. The card holder 5 moves the electric vehicle batteries to the bottom of the gantry 8. The electric cylinder 6 moves down, driving the laser welding head 7 to perform laser welding on the electric vehicle battery cells. The fixed-distance movement of the card holder 5 greatly facilitates the movement and positioning of the electric vehicle batteries and improves the accuracy of welding. At the same time, the gantry 8 is arranged with multiple sets of laser welding heads 7 on the inner side of the gantry 8 at different positions, which are aligned with different positions of the electric vehicle battery cells to complete the full welding of the cells. The working efficiency is high and the operation is stable. Compared with traditional welding robots, the structure is simpler and the use and maintenance costs are lower. In addition, the card slot surface is provided with side grooves 14. The card holder 5 is made of rubber structure. When flipping, the card holder 5 is squeezed by the drive roller and deformed, which facilitates the electric vehicle batteries to fall onto the top surface of the second conveyor belt 11, completing automatic unloading. This eliminates the trouble of using a robotic arm for unloading, further simplifies the production structure and reduces the use and maintenance costs.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] 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 cell laser welding production line, comprising a base plate (1) and a gantry (8), characterized in that, The base plate (1) is fixedly mounted with a first roller frame (3), and a first drive roller (4) is rotatably connected between the first roller frames (3). A first conveyor belt (2) is sleeved on the outside of the first drive roller (4). A card seat (5) is fixedly mounted on the outer surface of the first conveyor belt (2). A gantry (8) is fixedly mounted on the top surface of the base plate (1) outside the first conveyor belt (2). An electric cylinder (6) is fixedly mounted on the top surface of the gantry (8). A laser welding head (7) is fixedly mounted on the bottom surface of the moving rod of the electric cylinder (6). A stepper motor (12) is fixedly mounted on the back side of the first roller frame (3), and the output end of the stepper motor (12) is fixedly connected to one end of the roller shaft of the first drive roller (4).

2. The cell laser welding production line according to claim 1, characterized in that, The card holder (5) is made of rubber, and the surface of the card holder (5) is provided with a side groove (14).

3. The cell laser welding production line according to claim 1, characterized in that, The gantry (8) is arranged in multiple sets at equal intervals, and the number of gantry (8) corresponds to the number of laser welding heads (7).

4. The cell laser welding production line according to claim 1, characterized in that, The card holders (5) are arranged in multiple sets at equal intervals, and the size of the card holders (5) matches the size of the electric vehicle battery pack.

5. A cell laser welding production line according to claim 1, characterized in that, The base plate (1) has a second roller frame (9) fixedly mounted on one end of the top surface below one end of the first conveyor belt (2), and a second drive roller (10) is rotatably connected between the second roller frames (9), and a second conveyor belt (11) is sleeved on the outer surface of the second drive roller (10).

6. The cell laser welding production line according to claim 2, characterized in that, The side groove (14) penetrates the top surface of the card holder (5), and the side grooves (14) are densely spaced at equal intervals.

7. A cell laser welding production line according to claim 5, characterized in that, The second roller frame (9) has a drive motor (13) fixedly installed on its back side, and the output end of the drive motor (13) is fixedly connected to one end of the roller shaft of the second drive roller (10).

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