Battery cover plate double station welding equipment

Abstract

The utility model belongs to battery production technical field discloses a kind of battery cover plate double-station welding equipment.Battery cover plate double-station welding equipment uses bearing disc to bear welding tool, and two cover plate assemblies side by side are carried on the welding tool, and the cover plate assembly on the welding tool is sequentially transferred from feeding position to positive electrode welding position, positive electrode detection position, negative electrode welding position, negative electrode detection position and discharging position by the rotation of bearing disc;Feeding device places cover plate assembly on the welding tool of feeding position, and two cover plate assemblies are simultaneously welded by positive electrode welding device in positive electrode welding position, and positive electrode is detected in positive electrode detection position, and two cover plate assemblies on negative electrode welding position are simultaneously welded by negative electrode welding device in negative electrode welding position, and negative electrode is detected in negative electrode detection position by negative electrode welding detection device, and discharging device is discharged and transferred to cover plate assembly in discharging position, so as to realize the welding, on-line detection and discharging transfer of cover plate assembly.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and in particular to a dual-station welding equipment for battery cover plates. Background Technology

[0002] Currently, the battery cover and electrode plates of power batteries are mainly welded using laser welding machines. However, existing laser welding machines for power battery covers have the following shortcomings:

[0003] 1. The existing power battery cover laser welding machine is a single-station laser welding machine. After the laser welding head finishes welding the previous set of power battery covers, it has to wait for the next set of power battery covers to arrive at the welding position before it can weld the next set of power battery covers. This results in a very low utilization rate of the laser welding head, making it difficult to increase welding capacity. Moreover, the laser welding head is expensive.

[0004] 2. When welding two or more power battery cover plates, laser welding cannot be performed simultaneously. Only one power battery cover plate can be welded before welding another power battery cover plate.

[0005] 3. Laser welding machines often lack welding quality inspection and barcode scanning functions. After welding is completed, the welding effect and welding parameters cannot be identified in a timely manner, and relevant data cannot be uploaded for storage and retrieval. It is also impossible to trace the welded battery cover in a timely manner.

[0006] Therefore, there is an urgent need to provide a new type of dual-station welding equipment for battery cover plates to solve the above-mentioned technical problems in the existing technology. Utility Model Content

[0007] One objective of this invention is to provide a dual-station welding equipment for battery cover plates, which can improve the welding efficiency and quality of cover plate components, and make its structure more compact, reduce the equipment's footprint, and lower factory costs.

[0008] To achieve this objective, the present invention adopts the following technical solution:

[0009] The dual-station welding equipment for battery cover plates includes a support plate, a feeding device, a positive electrode welding device, a positive electrode welding detection device, a negative electrode welding device, a negative electrode welding detection device, and a unloading device. The support plate is rotatable around its Z-axis. Six welding fixtures are evenly spaced along the circumference of the support plate along its Z-axis, each capable of supporting two cover plate assemblies placed side-by-side. Along the rotation direction of the support plate, the six welding fixtures are sequentially configured as a feeding position, a positive electrode welding position, a positive electrode detection position, a negative electrode welding position, a negative electrode detection position, and an unloading position. The feeding device places the cover plate assemblies into the welding fixtures at the feeding position. The positive electrode welding device is positioned opposite the positive electrode welding position and includes two positive electrode welding devices. The device comprises two positive electrode welding heads for simultaneously welding two cover plate assemblies on the welding fixture at the positive electrode welding position; a positive electrode welding detection device is positioned opposite the positive electrode detection position and is used to detect the cover plate assembly at the positive electrode detection position after positive electrode welding is completed; a negative electrode welding device is positioned opposite the negative electrode welding position and includes two negative electrode welding heads for simultaneously welding two cover plate assemblies on the welding fixture at the negative electrode welding position; a negative electrode welding detection device is positioned opposite the negative electrode detection position and is used to detect the cover plate assembly at the negative electrode detection position after negative electrode welding is completed; and a material unloading device is used to unload and transfer the cover plate assembly on the welding fixture at the material unloading position.

[0010] Optionally, the feeding device includes a feeding belt extending along the X direction and a feeding mechanism disposed at the end of the feeding belt. The feeding mechanism is used to simultaneously grab two of the cover plate assemblies and place them in the welding fixture at the feeding position.

[0011] Optionally, the feeding mechanism includes a gripping component, a Y-direction moving component, and a Z-direction moving component. The gripping component is used to grip the cover plate assembly and is disposed at the output end of the Z-direction moving component. The Z-direction moving component is disposed at the output end of the Y-direction moving component. The end of the feeding belt is spaced apart from the loading position in the Y direction.

[0012] Optionally, the gripping assembly includes a gripping substrate and a plurality of first negative pressure suction cups disposed at the bottom of the gripping substrate, wherein the first negative pressure suction cups are used to grip the cover plate assembly.

[0013] Optionally, the aforementioned feeding belt is equipped with a barcode scanner for scanning the QR code on the aforementioned cover plate assembly.

[0014] Optionally, the above-mentioned unloading device includes an unloading transfer component, a qualified product unloading conveyor belt, and an unqualified product unloading conveyor belt. The unloading transfer component is used to grab the cover plate component on the welding fixture at the unloading position, and place the qualified cover plate component on the qualified product unloading conveyor belt, and place the unqualified cover plate component on the unqualified product unloading conveyor belt.

[0015] Optionally, the above-mentioned unloading and transfer assembly includes an unloading gripper, an X-direction transfer member, a Y-direction transfer member, and a Z-direction transfer member. The unloading gripper is used to grip the cover plate assembly and is disposed at the output end of the Z-direction transfer member. The Z-direction transfer member is disposed at the output end of the X-direction transfer member, and the X-direction transfer member is disposed at the output end of the Y-direction transfer member.

[0016] Optionally, both the qualified product unloading conveyor and the NG product unloading conveyor extend along the X direction, and the cover plate assemblies on both conveyors are placed along the Y direction. The cover plate assembly on the welding fixture at the unloading position is placed along the X direction. The output end of the Z-direction transfer member is provided with a Z-axis rotating member. The unloading gripper includes a gripping base and a plurality of second negative pressure suction cups disposed at the bottom of the gripping base. The gripping base is connected to the output end of the Z-axis rotating member and can rotate around its own Z-axis. The second negative pressure suction cups are used to adsorb and fix the cover plate assembly.

[0017] Optionally, the above-mentioned positive electrode welding detection device and the above-mentioned negative electrode welding detection device each include a CCD detection camera.

[0018] Beneficial effects:

[0019] The dual-station welding equipment for battery cover plates in this invention uses a carrier plate to support a welding fixture. The welding fixture carries two cover plate assemblies arranged side by side. By rotating the carrier plate, the welding fixture and the cover plate assemblies on it are sequentially transferred from the loading position to the positive electrode welding position, the positive electrode detection position, the negative electrode welding position, the negative electrode detection position, and the unloading position. The loading device places the cover plate assemblies on the welding fixture at the loading position. The positive electrode welding device uses two positive electrode welding heads to simultaneously weld the two cover plate assemblies at the positive electrode welding position. The positive electrode welding detection device detects the cover plate assemblies that have been welded at the positive electrode detection position. The negative electrode welding device uses two negative electrode welding heads to simultaneously weld the two cover plate assemblies at the negative electrode welding position. The negative electrode welding detection device detects the cover plate assemblies that have been welded at the negative electrode detection position. The unloading device unloads and transfers the cover plate assemblies at the unloading position, thereby realizing the welding, online detection, and unloading and transfer of the cover plate assemblies. This dual-station welding equipment for battery cover plates can simultaneously perform positive electrode welding, positive electrode testing, negative electrode welding, negative electrode testing, and unloading and transfer of two cover plate components in sequence. This allows for online inspection of the welding effect, marking and removing defective products to improve the quality of the finished product. It also improves the welding efficiency and quality of the cover plate components. Furthermore, the feeding device, positive electrode welding device, positive electrode welding testing device, negative electrode welding device, negative electrode welding testing device, and unloading device are all located around the outer perimeter of the support plate, making the structure more compact, reducing the equipment's footprint, and lowering factory costs. Attached Figure Description

[0020] Figure 1 This is a top view of the dual-station welding equipment for battery cover plates provided in a specific embodiment of this utility model;

[0021] Figure 2 This is an isometric view of the dual-station welding equipment for battery cover provided in a specific embodiment of this utility model;

[0022] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 yes Figure 2 A magnified view of a section at point B.

[0024] In the picture:

[0025] 1. Cover plate assembly;

[0026] 10. Support plate; 11. Welding fixture; 101. Loading position; 102. Positive electrode welding position; 103. Positive electrode detection position; 104. Negative electrode welding position; 105. Negative electrode detection position; 106. Unloading position; 107. Empty position;

[0027] 20. Feeding device; 21. Feeding belt conveyor; 2211. Grab substrate; 2212. First negative pressure suction cup; 222. Z-direction moving part; 223. Y-direction moving part;

[0028] 30. Positive electrode welding device; 40. Positive electrode welding detection device; 50. Negative electrode welding device; 60. Negative electrode welding detection device;

[0029] 70. Feeding device; 7111. Gripping base; 7112. Second negative pressure suction cup; 712. Z-direction conveyor; 7121. Z-axis rotating component; 713. X-direction conveyor; 714. Y-direction conveyor; 72. Qualified product feeding conveyor belt; 73. NG product feeding conveyor belt. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] The X direction mentioned in this embodiment is... Figure 2 The X direction shown is the horizontal direction; the Y direction is... Figure 2 The Y direction shown is another horizontal direction; the Z axis and Z direction are both... Figure 2 The Z direction shown is the vertical direction; the X, Y, and Z directions are all perpendicular to each other.

[0035] Please refer to Figure 1 and Figure 2 In this embodiment, the dual-station welding equipment for battery cover plates includes a support plate 10, a feeding device 20, a positive electrode welding device 30, a positive electrode welding detection device 40, a negative electrode welding device 50, a negative electrode welding detection device 60, and a unloading device 70. The support plate 10 is rotatable around its own Z-axis. Six welding fixtures 11 are evenly spaced along the circumference of the support plate 10 along its own Z-axis. Each welding fixture 11 can support two cover plate assemblies 1 placed side by side. Along the rotation direction of the support plate 10, the six welding fixtures 11 are sequentially configured as a feeding position 101, a positive electrode welding position 102, a positive electrode detection position 103, a negative electrode welding position 104, a negative electrode detection position 105, and an unloading position 106. The feeding device 20 is used to place the cover plate assembly 1 on the welding fixture 11 at the feeding position 101. The positive electrode welding device 30 is positioned directly opposite the positive electrode welding position 102. The device 30 includes two positive electrode welding heads, which are used to simultaneously weld the two cover plate assemblies 1 on the welding fixture 11 at the positive electrode welding position 102; the positive electrode welding detection device 40 is positioned opposite the positive electrode detection position 103 and is used to detect the cover plate assembly 1 after the positive electrode welding at the positive electrode detection position 103 is completed; the negative electrode welding device 50 is positioned opposite the negative electrode welding position 104 and includes two negative electrode welding heads, which are used to simultaneously weld the two cover plate assemblies 1 on the welding fixture 11 at the negative electrode welding position 104; the negative electrode welding detection device 60 is positioned opposite the negative electrode detection position 105 and is used to detect the cover plate assembly 1 after the negative electrode welding at the negative electrode detection position 105 is completed; and the unloading device 70 is used to unload and transfer the cover plate assembly 1 on the welding fixture 11 at the unloading position 106.

[0036] In this embodiment, the dual-station welding equipment for battery cover plates uses a carrier plate 10 to support a welding fixture 11. The welding fixture 11 carries two cover plate assemblies 1 arranged side-by-side. The rotation of the carrier plate 10 sequentially transfers the welding fixture 11 and the cover plate assemblies 1 on it from the loading position 101 to the positive electrode welding position 102, the positive electrode detection position 103, the negative electrode welding position 104, the negative electrode detection position 105, and the unloading position 106. The loading device 20 places the cover plate assemblies 1 on the welding fixture 11 at the loading position 101. The positive electrode welding device 30 uses two... A positive electrode welding head simultaneously welds two cover plate assemblies 1 at the positive electrode welding position 102. The positive electrode welding detection device 103 detects the cover plate assembly 1 after the positive electrode welding is completed. The negative electrode welding device 50 uses two negative electrode welding heads to simultaneously weld the two cover plate assemblies 1 at the negative electrode welding position 104. The negative electrode welding detection device 60 detects the cover plate assembly 1 after the negative electrode welding is completed at the negative electrode detection position 105. The unloading device 70 unloads and transfers the cover plate assembly 1 at the unloading position 106, thereby realizing the welding, online detection and unloading and transfer of the cover plate assembly 1. This dual-station welding equipment for battery cover plates can simultaneously perform positive electrode welding, positive electrode detection, negative electrode welding, negative electrode detection, and unloading and transfer of two cover plate components 1 in sequence. This allows for online detection of the welding effect, marking and removing defective products, thereby improving the quality of the finished product. It can also improve the welding efficiency and quality of the cover plate components 1. Furthermore, the feeding device 20, positive electrode welding device 30, positive electrode welding detection device 40, negative electrode welding device 50, negative electrode welding detection device 60, and unloading device 70 surround the outer periphery of the support plate 10, making its structure more compact, reducing the equipment's footprint, and lowering factory costs.

[0037] Furthermore, such as Figure 1 As shown, two additional welding fixtures 11 are provided, resulting in a total of eight welding fixtures 11. The two additional welding fixtures 11 correspond to two empty material positions 107. One empty material position 107 is located between the unloading position 106 and the negative electrode detection position 105, while the other empty material position 107 is located between the unloading position 106 and the loading position 101. The empty material positions 107 provide a buffer space around the support plate 10, preventing the welding fixtures 11 from being too close together and avoiding obstruction and collision between the loading device 20, the positive electrode welding device 30, the positive electrode welding detection device 40, the negative electrode welding device 50, the negative electrode welding detection device 60, and the unloading device 70, thus improving the rationality of the spatial arrangement. Furthermore, the empty material positions 107 can slow down the rotation speed of the support plate 10, allowing each welding device or detection device sufficient time to work, thereby improving the welding quality.

[0038] like Figure 2 and Figure 3As shown, the feeding device 20 includes a feeding belt 21 extending along the X direction and a feeding mechanism disposed at the end of the feeding belt 21. The feeding mechanism is used to simultaneously grip two of the cover plate assemblies 1 and place them in the welding fixture 11 at the feeding position 101. The feeding belt 21 can transport the cover plate assemblies 1 from a distant hopper to the feeding mechanism at the end, thereby improving feeding efficiency.

[0039] Furthermore, the aforementioned feeding mechanism includes a gripping component, a Y-direction moving component 223, and a Z-direction moving component 222. The gripping component is used to grip the cover plate assembly 1 and is located at the output end of the Z-direction moving component 222. The Z-direction moving component 222 is located at the output end of the Y-direction moving component 223. The end of the feeding belt 21 is spaced apart from the loading position 101 in the Y direction. That is, the line connecting the end of the feeding belt 21 and the loading position 101 is parallel to the Y direction. Only the gripping component grips the cover plate assembly 1 and is driven to rise or fall by the Z-direction moving component 222. The Y-direction moving component 223 drives the Z-direction moving component 222 and the gripping component to be transferred from the end of the feeding belt 21 to the loading position 101, making the loading position more accurate and improving the loading efficiency.

[0040] In this embodiment, the gripping component includes a gripping substrate 2211 and a plurality of first negative pressure suction cups 2212 disposed at the bottom of the gripping substrate 2211. The first negative pressure suction cups 2212 are used to grip the cover plate assembly 1. The first negative pressure suction cups 2212 enable the cover plate assembly 1 to be firmly adsorbed by negative pressure for transfer, and the cover plate assembly 1 can be easily placed after the negative pressure is released, thereby improving the efficiency of gripping and transfer.

[0041] Furthermore, each cover plate assembly 1 is provided with four first negative pressure suction cups 2212, that is, the first negative pressure suction cups 2212 are provided at the four corners of the cover plate assembly 1, which can improve the stability of adsorption and fixation, and the adsorption force is more stable.

[0042] In a preferred embodiment, the aforementioned feeding conveyor belt 21 is equipped with a barcode scanner for scanning the QR code on the cover plate assembly 1. The barcode scanner enables timely scanning of the loaded cover plate assembly 1, facilitating scanning before welding, traceability after welding, and timely identification of welding effects and parameters after welding. It also uploads and stores / retrieves relevant welding data and the corresponding battery cover plate QR code information, allowing for timely adjustment of welding parameters that may cause defective products and improving subsequent welding quality.

[0043] like Figure 2 and Figure 4As shown, the feeding device 70 includes a feeding and transfer assembly, a qualified product feeding conveyor belt 72, and an unqualified product feeding conveyor belt 73. The feeding and transfer assembly is used to pick up the cover plate assembly 1 from the welding fixture 11 at the feeding position 106, and place qualified cover plate assemblies 1 on the qualified product feeding conveyor belt 72, while placing unqualified cover plate assemblies 1 on the unqualified product feeding conveyor belt 73. The feeding device 70 can use the feeding and transfer assembly to feed the welded cover plate assemblies 1 separately, placing qualified products on the qualified product feeding conveyor belt 72 and rejecting unqualified products and placing them on the unqualified product feeding conveyor belt 73, thereby realizing the screening and feeding of unqualified and qualified products, improving the quality of the obtained cover plate assembly 1, and facilitating the subsequent production of battery products.

[0044] Specifically, the aforementioned material feeding and transfer assembly includes a material feeding gripper, an X-direction transfer member 713, a Y-direction transfer member 714, and a Z-direction transfer member 712. The material feeding gripper is used to grip the cover plate assembly 1 and is disposed at the output end of the Z-direction transfer member 712. The Z-direction transfer member 712 is disposed at the output end of the X-direction transfer member 713, and the X-direction transfer member 713 is disposed at the output end of the Y-direction transfer member 714. The material handling and transfer assembly includes a material handling gripper, an X-direction transfer member 713, a Y-direction transfer member 714, and a Z-direction transfer member 712. The material handling gripper is moved along the X, Y, and Z directions by the X-direction transfer member 713, the Y-direction transfer member 714, and the Z-direction transfer member 712, respectively. This allows the cover plate assembly 1 to move in the X, Y, and Z directions, moving it from the material handling position 106 to the qualified product unloading conveyor belt 72 or the NG product unloading conveyor belt 73, thus improving the efficiency of gripping and unloading.

[0045] Furthermore, both the qualified product unloading conveyor belt 72 and the NG product unloading conveyor belt 73 extend along the X direction, and the cover plate assemblies 1 on the qualified product unloading conveyor belt 72 and the NG product unloading conveyor belt 73 are placed along the Y direction. The cover plate assembly 1 on the welding fixture 11 of the unloading position 106 is placed along the X direction. The output end of the Z-direction transfer member 712 is provided with a Z-axis rotating member 7121. The unloading gripper includes a gripping base 7111 and a plurality of second negative pressure suction cups 7112 disposed at the bottom of the gripping base 7111. The gripping base 7111 is connected to the output end of the Z-axis rotating member 7121 and can rotate around its own Z-axis. The second negative pressure suction cups 7112 are used to adsorb and fix the cover plate assembly 1. In this embodiment, the cover plate assembly 1 always points towards the center of the support plate 10, that is, parallel to the radial direction of the support plate 10. Here, the cover plate assembly 1 on the unloading position 106 is arranged along the X direction, that is, the length direction of the cover plate assembly 1 is parallel to the X direction. The qualified product unloading conveyor belt 72 and the NG product unloading conveyor belt 73 both extend along the X direction, and the cover plate assembly 1 on them is placed along the Y direction, that is, the length direction of the cover plate assembly 1 is parallel to the Y direction. Therefore, the placement direction of the cover plate assembly 1 on the unloading position 106 and the conveyor belt is different. Therefore, the Z-axis rotating component 7121 is used to rotate the gripping base 7111, thereby realizing the rotation of the cover plate assembly 1.

[0046] The second negative pressure suction cup 7112 can firmly adsorb the cover plate assembly 1 for transfer using negative pressure, and can easily place the cover plate assembly 1 after the negative pressure is released, thus improving the efficiency of gripping and transfer.

[0047] Furthermore, each cover plate assembly 1 is provided with four second negative pressure suction cups 7112, that is, the second negative pressure suction cups 7112 are provided at the four corners of the cover plate assembly 1, which can improve the stability of adsorption and fixation, and the adsorption force is more stable.

[0048] Optionally, the aforementioned positive electrode welding inspection device 40 and the aforementioned negative electrode welding inspection device 60 each include a CCD inspection camera. The CCD inspection camera can take pictures and compare the welding parts through a CCD (Charge Coupled Device) to determine the welding effect. As a visual inspection device with an image sensor, it can capture image information from the industrial production line and recognize, analyze and process these images through an internal processing system, thereby realizing automatic detection and control of product quality.

[0049] This embodiment also provides a battery cover welding method, which uses a dual-station battery cover welding device as described in any of the above solutions, and includes the following steps:

[0050] S1. The feeding device 20 simultaneously picks up two cover plate assemblies 1 and places them on the welding fixture 11 at the feeding position 101; S2. The carrying plate 10 rotates to transport the welding fixture 11 from the feeding position 101 to the positive electrode welding position 102, and the positive electrode welding device 30 simultaneously welds the two cover plate assemblies 1 at the positive electrode welding position 102; S3. The carrying plate 10 rotates to transport the welding fixture 11 from the positive electrode welding position 102 to the positive electrode detection position 103, and the positive electrode welding detection device 40 detects the welding result of the cover plate assemblies 1 at the positive electrode detection position 103; S4. The carrying plate 10 rotates to transport the positive electrode welding fixture 11 from the positive electrode welding position 103 to the positive electrode detection position 103. The welding fixture 11 at the measuring position 103 is transported to the negative electrode welding position 104, and the negative electrode welding device 50 simultaneously welds the two cover plate assemblies 1 on the negative electrode welding position 104; S5, the bearing plate 10 rotates to transport the welding fixture 11 at the negative electrode welding position 104 to the negative electrode detection position 105, and the negative electrode welding detection device 60 detects the welding result of the cover plate assembly 1 at the negative electrode detection position 105; S6, the bearing plate 10 rotates to transport the welding fixture 11 at the negative electrode detection position 105 to the unloading position 106, and the unloading device 70 grabs the cover plate assembly 1 of the welding fixture 11 at the unloading position 106 for unloading.

[0051] This battery cover welding method uses the dual-station battery cover welding equipment described in any of the above-mentioned schemes, thus possessing the beneficial effects of the dual-station battery cover welding equipment described in any of the above-mentioned schemes. Specifically, this battery cover welding method can simultaneously realize the sequential positive electrode welding, positive electrode detection, negative electrode welding, negative electrode detection, and material unloading and transfer of two cover components 1, thereby enabling online detection of the welding effect, marking and removing defective products, thereby improving the quality of the finished product, and also improving the welding efficiency and welding quality of the cover component 1.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A dual-station welding equipment for battery cover plates, characterized in that, include: A support plate (10) is rotatable around its own Z-axis. Six welding fixtures (11) are evenly spaced along the circumference of the support plate (10) along its own Z-axis. Each welding fixture (11) can support two cover plate assemblies (1) placed side by side. The six welding fixtures (11) are arranged sequentially as loading position (101), positive electrode welding position (102), positive electrode detection position (103), negative electrode welding position (104), negative electrode detection position (105), and unloading position (106) along the rotation direction of the support plate (10). A feeding device (20) is used to place the cover plate assembly (1) in the welding fixture (11) of the feeding position (101); A positive electrode welding device (30) is provided directly opposite the positive electrode welding position (102). The positive electrode welding device (30) includes two positive electrode welding heads, which are used to simultaneously weld the two cover plate assemblies (1) on the welding fixture (11) of the positive electrode welding position (102). A positive electrode welding detection device (40) is provided directly opposite the positive electrode detection position (103) and is used to detect the cover plate assembly (1) after the positive electrode welding of the positive electrode at the positive electrode detection position (103) is completed. A negative electrode welding device (50) is provided directly opposite the negative electrode welding position (104). The negative electrode welding device (50) includes two negative electrode welding heads, which are used to simultaneously weld the two cover plate assemblies (1) on the welding fixture (11) of the negative electrode welding position (104). A negative electrode welding detection device (60) is provided directly opposite the negative electrode detection position (105) and is used to detect the cover plate assembly (1) when the negative electrode welding of the negative electrode at the negative electrode detection position (105) is completed. The unloading device (70) is used to unload and transfer the cover plate assembly (1) on the welding fixture (11) at the unloading position (106).

2. The dual-station welding equipment for battery cover plates according to claim 1, characterized in that, The feeding device (20) includes a feeding belt (21) extending along the X direction and a feeding mechanism located at the end of the feeding belt (21). The feeding mechanism is used to simultaneously grab two cover plate assemblies (1) and place them in the welding fixture (11) at the feeding position (101).

3. The dual-station welding equipment for battery cover plates according to claim 2, characterized in that, The feeding mechanism includes a gripping component, a Y-direction moving part (223) and a Z-direction moving part (222). The gripping component is used to grip the cover plate assembly (1) and is located at the output end of the Z-direction moving part (222). The Z-direction moving part (222) is located at the output end of the Y-direction moving part (223). The end of the feeding belt (21) is spaced apart from the loading position (101) in the Y direction.

4. The dual-station welding equipment for battery cover plates according to claim 3, characterized in that, The gripping assembly includes a gripping substrate (2211) and a plurality of first negative pressure suction cups (2212) disposed at the bottom of the gripping substrate (2211), the first negative pressure suction cups (2212) being used to grip the cover plate assembly (1).

5. The dual-station welding equipment for battery cover plates according to claim 2, characterized in that, The feeding belt (21) is equipped with a barcode scanner for scanning the QR code on the cover plate assembly (1).

6. The dual-station welding equipment for battery cover plates according to claim 1, characterized in that, The unloading device (70) includes an unloading transfer assembly, a qualified product unloading conveyor belt (72), and an unqualified product unloading conveyor belt (73). The unloading transfer assembly is used to grab the cover plate assembly (1) on the welding fixture (11) at the unloading position (106), and place the qualified cover plate assembly (1) on the qualified product unloading conveyor belt (72) and the unqualified cover plate assembly (1) on the unqualified product unloading conveyor belt (73).

7. The dual-station welding equipment for battery cover plates according to claim 6, characterized in that, The material feeding and transfer assembly includes a material feeding gripper, an X-direction transfer member (713), a Y-direction transfer member (714), and a Z-direction transfer member (712). The material feeding gripper is used to grip the cover plate assembly (1) and is located at the output end of the Z-direction transfer member (712). The Z-direction transfer member (712) is located at the output end of the X-direction transfer member (713), and the X-direction transfer member (713) is located at the output end of the Y-direction transfer member (714).

8. The dual-station welding equipment for battery cover plates according to claim 7, characterized in that, The qualified product unloading conveyor belt (72) and the NG product unloading conveyor belt (73) both extend along the X direction. The cover plate assembly (1) on the qualified product unloading conveyor belt (72) and the NG product unloading conveyor belt (73) are both placed along the Y direction. The cover plate assembly (1) on the welding fixture (11) of the unloading position (106) is placed along the X direction. The output end of the Z-direction transfer component (712) is provided with a Z-axis rotating component (7121). The unloading gripper includes a gripping base (7111) and a plurality of second negative pressure suction cups (7112) disposed at the bottom of the gripping base (7111). The gripping base (7111) is connected to the output end of the Z-axis rotating component (7121) and can rotate around its own Z-axis. The second negative pressure suction cups (7112) are used to adsorb and fix the cover plate assembly (1).

9. The dual-station welding equipment for battery cover plates according to any one of claims 1-8, characterized in that, The positive electrode welding detection device (40) and the negative electrode welding detection device (60) each include a CCD detection camera.

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