Lithium battery ultrasonic metal tab welding device

Abstract

The utility model aims at providing a lithium cell ultrasonic wave metal pole lug welding equipment, low in cost, green production, better applicability, can be compatible with various size models of battery, realizes the automatic welding of lithium cell pole and pole lug. The utility model discloses a rack, the upper end of rack is provided with width adjusting subassembly, width adjusting subassembly includes conveying line, the first end of conveying line is provided with range finding subassembly, the middle end of conveying line is provided with pole lug punching and cutting subassembly, material taking subassembly and welding subassembly, the end of conveying line is provided with side pusher and discharge cylinder in symmetry, pole lug punching and cutting subassembly cooperate with material taking subassembly, material taking subassembly cooperate with welding subassembly. The utility model is applied to the technical field of welding equipment.

Description

Technical Field

[0001] This utility model applies to the technical field of welding equipment, and particularly relates to an ultrasonic metal tab welding device for lithium batteries. Background Technology

[0002] With social development, the demand for new energy vehicles is increasing, and the demand for power lithium batteries is also increasing. The lithium battery manufacturing process includes a process of electrode tab welding. The electrode tab is a metal conductor that leads the positive and negative electrodes out of the battery. In layman's terms, the tabs of the positive and negative electrodes of the battery are the contact points during charging and discharging.

[0003] Currently, some companies rely on manual laser spot welding and soldering iron welding to weld lithium battery tabs. This method is not only inefficient and costly, but also suffers from poor consistency. Furthermore, laser welding equipment and materials are expensive, and the welding process generates toxic gases that are harmful to the human body if inhaled. Therefore, it is necessary to provide an ultrasonic metal tab welding device for lithium batteries that is low-cost, environmentally friendly, widely applicable, compatible with various battery sizes and models, and enables automated welding of lithium battery terminals and tabs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an ultrasonic metal tab welding equipment for lithium batteries. It is low in cost, green in production, and has good applicability. It can be compatible with batteries of various sizes and models and realize the automatic welding of lithium battery terminals and tabs.

[0005] The technical solution adopted by this utility model is as follows: This utility model includes a frame, and a width adjustment component is provided at the upper end of the frame. The width adjustment component includes a conveyor line. A distance measuring component is provided at the first end of the conveyor line. An electrode tab punching component, a material picking component, and a welding component are provided at the middle end of the conveyor line. A side push component and a discharge roller are symmetrically provided at the end of the conveyor line. The electrode tab punching component cooperates with the material picking component, and the material picking component cooperates with the welding component.

[0006] As can be seen from the above solution, this application produces no pollution during the ultrasonic welding process, making it suitable for applications with high environmental protection requirements. Furthermore, ultrasonic welding provides a stable and reliable connection effect, automatically adjusting the product's position on the conveyor line according to its size for precise welding. The use of an ultrasonic welding host replaces conventional laser welding and manual welding, reducing pollution and costs. It can weld lithium battery terminals and tabs. The high-precision modules and servo motor control used in the equipment effectively reduce errors and ensure welding consistency.

[0007] A preferred embodiment is that the upper end of the frame is provided with a mounting bracket, the tab punching assembly is mounted on the mounting bracket, the tab punching assembly includes a tab reel, a cutting blade module, and a blade holder, the blade holder has grooves distributed in a straight line, the tail of the blade holder is provided with a positioning block, and a gap is provided between the tail of the blade holder and the positioning block, the cutting blade module includes a fixed blade, a movable blade, and a pen-shaped cylinder driven in a vertical direction, the fixed blade is located below the gap, the actuating end of the pen-shaped cylinder is connected to the movable blade, the movable blade is located above the gap, the bottom of the blade holder is provided with a first drive motor, the output end of the first drive motor is connected to a rolling element, and the rolling element is located below the groove.

[0008] In a preferred embodiment, the material handling assembly is mounted on the mounting bracket. The material handling assembly includes a rotary cylinder, the actuating end of which is provided with a rotating arm, and the rotating arm is provided with a suction nozzle, which is connected to an external vacuum source.

[0009] In a preferred embodiment, the welding assembly is mounted on the mounting bracket, and the welding assembly includes an ultrasonic welding host disposed below the suction nozzle.

[0010] In a preferred embodiment, the ranging component includes a ranging plate, which is provided with a first physical ruler in the horizontal direction and a second physical ruler in the vertical direction. The ranging plate is also provided with a first laser sensor and a second laser sensor, wherein the first laser sensor is electrically coupled to the first physical ruler, and the second laser sensor is electrically coupled to the second physical ruler.

[0011] In a preferred embodiment, the width adjustment component further includes a limiting plate and a second drive motor. The output end of the second drive motor is connected to a lead screw assembly, which is connected to a push plate. The push plate and the limiting plate are respectively disposed on the left and right sides of the beginning of the conveyor line.

[0012] In a preferred embodiment, the side-push assembly includes a side-push cylinder in the horizontal direction, the actuating end of the side-push cylinder is provided with a push block, and the push block and the discharge roller are respectively arranged on the left and right sides of the end of the conveyor line.

[0013] In a preferred embodiment, the lithium battery ultrasonic metal tab welding equipment further includes a three-axis motion module, and the mounting bracket is disposed at the moving end of the three-axis motion module. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2This is a three-dimensional structural diagram of the tab punching assembly;

[0016] Figure 3 This is a three-dimensional structural diagram of the material handling assembly and the welding assembly;

[0017] Figure 4 This is a three-dimensional structural diagram of the ranging component;

[0018] Figure 5 This is a three-dimensional structural diagram of the width-adjusting component;

[0019] Figure 6 This is a three-dimensional structural diagram of the side-push assembly and the discharge roller. Detailed Implementation

[0020] like Figure 1 As shown, in this embodiment, the present invention includes a frame 1, an adjustment component 2 is provided at the upper end of the frame 1, the adjustment component 2 includes a conveyor line 3, a ranging component 4 is provided at the first end of the conveyor line 3, an electrode tab punching component 5, a material picking component 6 and a welding component 7 are provided at the middle end of the conveyor line 3, and a side pushing component 8 and a discharge roller 9 are symmetrically provided at the end of the conveyor line 3; the electrode tab punching component 5 cooperates with the material picking component 6, and the material picking component 6 cooperates with the welding component 7.

[0021] During operation, a manual or robotic arm places the lithium battery product into the ranging component 4, which measures the dimensions of the lithium battery product. The manual or robotic arm then places the lithium battery product into the width adjusting component 2. The conveyor line 3 transports the lithium battery product forward to below the welding component 7. Simultaneously, the tab cutting component 5 has already cut the tabs to the corresponding dimensions. The material picking component 6 picks up the tabs and moves them to the position of the electrode post on the lithium battery product. The welding component 7 begins ultrasonic welding of the lithium battery product. After welding is completed, the conveyor line 3 transports the lithium battery product forward to the end. The side pushing component 8 pushes the lithium battery product out onto the discharge roller 9, thus completing the welding and unloading function. This cycle repeats continuously.

[0022] like Figure 2As shown, in this embodiment, a mounting bracket 10 is provided at the upper end of the frame 1, and the tab punching assembly 5 is disposed on the mounting bracket 10. The tab punching assembly 5 includes a tab reel 11, a cutting blade module, and a blade holder 13. The blade holder 13 has grooves 14 distributed along a straight line. A positioning block 15 is provided at the tail of the blade holder 13, and a gap is provided between the tail of the blade holder 13 and the positioning block 15. The cutting blade module includes a fixed blade 16, a movable blade 17, and a pen-shaped cylinder 18 driven in a vertical direction. The fixed blade 16 is disposed below the gap, and the actuating end of the pen-shaped cylinder 18 is connected to the movable blade 17. The movable blade 17 is located above the gap. A first drive motor 19 is provided at the bottom of the blade holder 13. The output end of the first drive motor 19 is connected to a rolling element, and the rolling element is located below the groove 14.

[0023] The tab reel 11 is used to install the tabs. The tabs pass through the groove 14 and are transmitted to the positioning block 15 by the rolling element. The first drive motor 19 drives the rolling element to rotate, and the rolling element drives the tabs to be conveyed forward. The pen-shaped cylinder 18 drives the movable cutter 17 to move. The movable cutter 17 and the fixed cutter 16 cut the tabs in the gap.

[0024] like Figure 3 As shown, in this embodiment, the material handling component 6 is mounted on the mounting bracket 10. The material handling component 6 includes a rotary cylinder 61. The rotating end of the rotary cylinder 61 is provided with a rotating arm 62. The rotating arm 62 is provided with a suction nozzle 63. The suction nozzle 63 is connected to an external vacuum source.

[0025] like Figure 3 As shown, in this embodiment, the welding assembly 7 is disposed on the mounting bracket 10, and the welding assembly 7 includes an ultrasonic welding host 71, which is disposed below the suction nozzle 63.

[0026] like Figure 4 As shown, in this embodiment, the ranging component 4 includes a ranging plate 41. The ranging plate 41 is provided with a first physical ruler 42 in the horizontal direction and a second physical ruler 43 in the vertical direction. The ranging plate 41 is provided with a first laser sensor 44 and a second laser sensor 45. The first laser sensor 44 is electrically coordinated with the first physical ruler 42, and the second laser sensor 45 is electrically coordinated with the second physical ruler 43.

[0027] The ranging plate 41 is equipped with a third physical ruler and a third laser sensor along the horizontal direction. The first laser sensor 44, the second laser sensor 45 and the third laser sensor respectively detect the length, height and width of the lithium battery and record the size.

[0028] like Figure 5 As shown, in this embodiment, the width adjustment component 2 further includes a limiting plate 21 and a second drive motor 22. The output end of the second drive motor 22 is connected to a lead screw assembly, and the lead screw assembly is connected to a push plate 23. The push plate 23 and the limiting plate 21 are respectively disposed on the left and right sides of the beginning of the conveyor line 3.

[0029] The second drive motor 22 drives the lead screw assembly to rotate, which in turn moves the push plate 23 forward. The push plate 23 pushes the lithium battery to move so that the lithium battery touches the limiting plate 21, automatically adjusting the position of the battery on the conveyor line 3, thus accommodating batteries of various sizes.

[0030] like Figure 6 As shown, in this embodiment, the side push assembly 8 includes a side push cylinder 81 along the horizontal direction. The actuating end of the side push cylinder 81 is provided with a push block 82. The push block 82 and the discharge roller 9 are respectively arranged on the left and right sides of the end of the conveyor line 3.

[0031] like Figures 1 to 3 As shown, in this embodiment, the lithium battery ultrasonic metal tab welding equipment further includes a three-axis motion module, and the mounting bracket 10 is disposed at the moving end of the three-axis motion module. The three-axis motion module includes linear motion modules in the X, Y, and Z directions, which drive the mounting bracket 10 to move to any position. In addition, since the lithium battery has two terminals, two sets of the three-axis motion modules are provided.

Claims

1. A lithium battery ultrasonic metal tab welding device, comprising a frame (1), characterized in that: The upper end of the frame (1) is provided with a width adjustment component (2), the width adjustment component (2) includes a conveyor line (3), the first end of the conveyor line (3) is provided with a distance measuring component (4), the middle end of the conveyor line (3) is provided with a tab punching component (5), a material taking component (6) and a welding component (7), and the end of the conveyor line (3) is symmetrically provided with a side push component (8) and a discharge roller (9); the tab punching component (5) cooperates with the material taking component (6), and the material taking component (6) cooperates with the welding component (7).

2. The ultrasonic metal tab welding equipment for lithium batteries according to claim 1, characterized in that: The upper end of the frame (1) is provided with a mounting bracket (10), and the electrode punching assembly (5) is mounted on the mounting bracket (10). The electrode punching assembly (5) includes an electrode reel (11), a cutting blade module, and a blade holder (13). The blade holder (13) has grooves (14) distributed in a straight line. A positioning block (15) is provided at the tail of the blade holder (13). A gap is provided between the tail of the blade holder (13) and the positioning block (15). The cutting blade module includes a fixed... The tool (16), the movable tool (17), and the pen-shaped cylinder (18) driven in the vertical direction are provided. The fixed tool (16) is located below the gap. The actuating end of the pen-shaped cylinder (18) is connected to the movable tool (17). The movable tool (17) is located above the gap. The bottom of the tool holder (13) is provided with a first drive motor (19). The output end of the first drive motor (19) is connected to a rolling element. The rolling element is located below the groove (14).

3. The ultrasonic metal tab welding equipment for lithium batteries according to claim 2, characterized in that: The material handling component (6) is mounted on the mounting bracket (10). The material handling component (6) includes a rotary cylinder (61). The rotating end of the rotary cylinder (61) is provided with a rotating arm (62). The rotating arm (62) is provided with a suction nozzle (63). The suction nozzle (63) is connected to an external vacuum source.

4. The ultrasonic metal tab welding equipment for lithium batteries according to claim 3, characterized in that: The welding assembly (7) is mounted on the mounting bracket (10), and the welding assembly (7) includes an ultrasonic welding host (71), which is located below the suction nozzle (63).

5. The ultrasonic metal tab welding equipment for lithium batteries according to claim 1, characterized in that: The ranging component (4) includes a ranging plate (41), which is provided with a first physical ruler (42) in the horizontal direction and a second physical ruler (43) in the vertical direction. The ranging plate (41) is provided with a first laser sensor (44) and a second laser sensor (45). The first laser sensor (44) is electrically coordinated with the first physical ruler (42), and the second laser sensor (45) is electrically coordinated with the second physical ruler (43).

6. The ultrasonic metal tab welding equipment for lithium batteries according to claim 1, characterized in that: The width adjustment component (2) also includes a limiting plate (21) and a second drive motor (22). The output end of the second drive motor (22) is connected to a lead screw assembly, and the lead screw assembly is connected to a push plate (23). The push plate (23) and the limiting plate (21) are respectively located on the left and right sides of the beginning of the conveyor line (3).

7. The ultrasonic metal tab welding equipment for lithium batteries according to claim 1, characterized in that: The side push assembly (8) includes a side push cylinder (81) in the horizontal direction. The actuating end of the side push cylinder (81) is provided with a push block (82). The push block (82) and the discharge roller (9) are respectively located on the left and right sides of the end of the conveyor line (3).

8. The ultrasonic metal tab welding equipment for lithium batteries according to claim 2, characterized in that: The lithium battery ultrasonic metal tab welding equipment also includes a three-axis motion module, and the mounting bracket (10) is set at the moving end of the three-axis motion module.

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