A two-in-one laser welding intelligent platform

Abstract

The utility model relates to technical field especially relates to a kind of for two-in-one laser welding intelligent platform.The platform includes support platform, automatic film cutting machine, first industrial robot, second industrial robot and welding platform;Automatic film cutting machine, first industrial robot, second industrial robot and welding platform are all installed on support platform, and the film cutting operation area of automatic film cutting machine is located within the working range of second industrial robot;Welding platform is located in the working range intersection of first industrial robot and second industrial robot.By the intelligent platform of the application, two-in-one full-process automatic welding of film frame and plate frame can be realized respectively, without manual operation, which greatly improves production efficiency and product consistency.The platform can switch between film frame two-in-one and plate frame two-in-one, and only needs to adjust the action path of the robot during switching.Compared with the traditional one-device-one-scenario mode, the utilization rate of the platform is higher.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to an intelligent platform for two-in-one laser welding. Background Technology

[0002] Against the backdrop of the new energy industry accelerating towards dual-carbon goals, large-scale energy storage technology has become a core component supporting the stable grid connection of intermittent renewable energy sources such as wind power and photovoltaics. Among them, flow batteries have become one of the preferred technologies in the field of new large-scale energy storage due to their outstanding advantages such as long cycle life, high safety, and flexible capacity adjustment. As a core component of flow batteries, the manufacturing process of the fuel cell stack directly affects the overall performance and cost control of the battery. The application of laser welding technology in fuel cell stack production, using a high-energy-density laser beam to precisely connect key components such as bipolar plates, current collectors, and sealing frames, not only effectively avoids the defects of traditional processes but also significantly improves the sealing performance and structural stability of the fuel cell stack, ultimately greatly enhancing its operational reliability while reducing production and subsequent maintenance costs, providing crucial process support for the large-scale application of flow batteries. However, most companies in the industry still use manual laser welding platforms for fuel cell stack production. Operators need to manually adjust the workpiece position and control the welding path and parameters, resulting in low production efficiency. Furthermore, manual operation leads to significant differences in weld width, depth, and fusion degree, resulting in poor consistency between different batches and even within the same batch. This causes uneven electrolyte flow and current distribution in each cell during fuel cell operation, large inter-cell voltage differences, and consequently, a decrease in the overall operating efficiency of the fuel cell stack. Simultaneously, localized overcurrent and overvoltage problems accelerate electrode decay, severely affecting the operational stability and lifespan of the fuel cell stack. Utility Model Content

[0003] To improve the reliability and consistency of fuel cell stack production, this invention provides an intelligent platform for two-in-one laser welding.

[0004] Therefore, the present invention provides the following technical solution: An intelligent platform for two-in-one laser welding includes a support platform, an automatic film cutting machine, a first industrial robot, a second industrial robot, and a welding platform; the automatic film cutting machine, the first industrial robot, the second industrial robot, and the welding platform are all mounted on the support platform, the film cutting area of ​​the automatic film cutting machine is located within the working range of the second industrial robot; the welding platform is located within the intersection of the working ranges of the first industrial robot and the second industrial robot.

[0005] Furthermore, both the first and second industrial robots are equipped with negative pressure suction cups at their mobile ends; the first industrial robot is also equipped with a laser welding head at its mobile end.

[0006] Furthermore, an airtightness detection device is also installed on the support platform, and the detection area of ​​the airtightness detection device is located within the working range of the second industrial robot.

[0007] Furthermore, the support platform is also equipped with a first material handling platform and a second material handling platform. The first material handling platform is located within the working range of the first industrial robot, and the second material handling platform is located within the working range of the second industrial robot.

[0008] Furthermore, support rods are provided on the support platform at positions corresponding to the first and second material handling platforms, and visual inspection devices are installed at the ends of the support rods.

[0009] Furthermore, the welding platform includes a bracket and tempered glass, with the bracket mounted on a support platform and the tempered glass mounted on top of the bracket.

[0010] Advantages and positive effects of this utility model: The intelligent platform of this application enables fully automated welding of the membrane frame and plate frame in one process, eliminating the need for manual handling, positioning, or process switching, thus significantly improving production efficiency and product consistency.

[0011] The platform can switch between two scenarios: membrane frame integration and plate frame integration. When switching, there is no need to disassemble or modify the automatic film cutting machine, robot end effector, or other components. Only the robot's motion path needs to be adjusted. Compared with the traditional one-device-one-scenario model, the utilization rate of the platform in this application is higher. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a top view of the intelligent platform for two-in-one laser welding provided by this utility model.

[0014] In the diagram: 1. Automatic film cutting machine; 2. First industrial robot; 3. Second industrial robot; 4. Negative pressure suction cup; 5. Laser welding head; 6. Welding platform; 7. Air tightness detection device; 8. Support platform; 9. First material handling platform; 10. Second material handling platform; 11. Support rod; 12. Vision inspection device; 13. Tempered glass. Detailed Implementation

[0015] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0016] An intelligent platform for two-in-one laser welding, such as Figure 1 As shown, the system includes a support platform 8, an automatic film cutting machine 1, a first industrial robot 2, a second industrial robot 3, a welding platform 6, and an airtightness detection device 7. The automatic film cutting machine 1, the first industrial robot 2, the second industrial robot 3, the welding platform 6, and the airtightness detection device 7 are all mounted on the support platform 8. The film cutting area of ​​the automatic film cutting machine 1 is located within the working range of the second industrial robot 3. The welding platform 6 is located within the intersection of the working ranges of the first industrial robot 2 and the second industrial robot 3. The detection area of ​​the airtightness detection device 7 is located within the working range of the second industrial robot 3.

[0017] Negative pressure suction cups 4 are installed at the moving ends of both the first industrial robot 2 and the second industrial robot 3; a laser welding head 5 is also installed at the moving end of the first industrial robot 2.

[0018] The support platform 8 is also equipped with a first material handling platform 9 and a second material handling platform 10. The first material handling platform 9 is located within the working range of the first industrial robot 2, and the second material handling platform 10 is located within the working range of the second industrial robot 3. Support rods 11 are provided on the support platform 8 at positions corresponding to the first material handling platform 9 and the second material handling platform 10, and vision inspection devices 12 are installed at the ends of the support rods 11.

[0019] The welding platform 6 includes a bracket and a tempered glass 13. The bracket is mounted on the support platform 8, and the tempered glass 13 is mounted on top of the bracket.

[0020] The working principle of membrane frame welding: Automatic membrane cutting machine 1 precisely cuts the membrane according to the size required for laser welding; at the same time, the negative pressure suction cup of the second industrial robot 3 moves to the membrane cutting area and presses the membrane with negative pressure adsorption. On the one hand, it avoids the membrane from shifting during the cutting process and ensures the cutting size accuracy. On the other hand, it can directly grab the membrane after cutting, reducing the process connection time.

[0021] The negative pressure suction cup of the first industrial robot 2 picks up the electrode frame from the first material handling platform 9. The vision inspection device 12 detects whether the negative pressure suction cup has successfully picked up the electrode frame, and then the electrode frame is transferred to the welding platform 6.

[0022] The second industrial robot 3 picks up the cut diaphragm, transfers it to the welding platform 6, and precisely presses the diaphragm onto the electrode frame, maintaining a continuous pressure.

[0023] The first industrial robot 2 adjusts its posture and rotates the laser welding head 5 to the area below the welding platform 6, aligning it with the welding joint between the electrode frame and the diaphragm; the laser welding head emits a laser, which welds the diaphragm and electrode frame above through the tempered glass 13.

[0024] After welding is completed, the second industrial robot 3 picks up the membrane frame integrated component and transfers it to the airtightness testing device 7. The airtightness testing device detects whether there are any air leaks at the weld joint of the component through pressure testing, airtightness leak detection and other methods. Finally, the second industrial robot 3 transfers the qualified component for unloading, completing the entire membrane frame two-in-one welding process.

[0025] Working principle of the plate and frame combined unit: The second industrial robot 3 uses a negative pressure suction cup to pick up the bipolar plate to be welded from the second material handling platform 10, and the vision inspection device 12 detects whether the negative pressure suction cup has successfully picked up the bipolar plate.

[0026] The first industrial robot 2 grabs the electrode frame on the first material handling platform 9 and transfers it to the welding platform 6.

[0027] The second industrial robot 3 precisely presses the bipolar plate onto the pre-positioned electrode frame and maintains continuous pressure. The first industrial robot 2 rotates the laser welding head 5 to below the welding platform and performs laser welding on the bipolar plate and electrode frame assembly through tempered glass. The light transmission and high temperature resistance properties of the tempered glass enable stable welding.

[0028] After welding is completed, the second industrial robot 3 picks up the integrated plate and frame assembly and transfers it to the airtightness testing device 7 for sealing testing. After passing the test, the assembly is transferred for unloading, completing the plate and frame two-in-one welding process.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An intelligent platform for two-in-one laser welding, characterized in that, It includes a support platform (8), an automatic film cutting machine (1), a first industrial robot (2), a second industrial robot (3), and a welding platform (6); the automatic film cutting machine (1), the first industrial robot (2), the second industrial robot (3), and the welding platform (6) are all installed on the support platform (8), and the film cutting operation area of ​​the automatic film cutting machine (1) is located within the working range of the second industrial robot (3); the welding platform (6) is located within the intersection of the working ranges of the first industrial robot (2) and the second industrial robot (3).

2. The intelligent platform for two-in-one laser welding according to claim 1, characterized in that, Negative pressure suction cups (4) are installed at the moving ends of the first industrial robot (2) and the second industrial robot (3); a laser welding head (5) is also installed at the moving end of the first industrial robot (2).

3. The intelligent platform for two-in-one laser welding according to claim 1, characterized in that, An airtightness detection device (7) is also installed on the support platform (8), and the detection operation area of ​​the airtightness detection device (7) is located within the working range of the second industrial robot (3).

4. The intelligent platform for two-in-one laser welding according to claim 1, characterized in that, The support platform (8) is also equipped with a first material handling platform (9) and a second material handling platform (10). The first material handling platform (9) is located within the working range of the first industrial robot (2), and the second material handling platform (10) is located within the working range of the second industrial robot (3).

5. The intelligent platform for two-in-one laser welding according to claim 4, characterized in that, Support rods (11) are provided on the support platform (8) at positions corresponding to the first material handling platform (9) and the second material handling platform (10), and a visual inspection device (12) is installed at the end of the support rods (11).

6. The intelligent platform for two-in-one laser welding according to claim 1, characterized in that, The welding platform (6) includes a bracket and a tempered glass (13), with the bracket mounted on a support platform (8) and the tempered glass (13) mounted on top of the bracket.

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