Intelligent control structure for laser welding of copper sheet and copper bar

Abstract

The utility model discloses an intelligent control structure for laser welding of a copper sheet and a copper bar, which comprises a laser generator and an adjusting control component, the adjusting control assembly comprises a control system in signal connection with the laser generator, and a welding galvanometer and a welding field lens which are arranged at the laser output end of the laser generator and are arranged up and down; the laser generator is further provided with an automatic focusing module and a light spot adjusting module which are in signal connection with the control system. The adjusting control assembly is arranged on the laser generator, a control system of the adjusting control assembly is used for controlling all parts, and it is guaranteed that the welding field lens and the welding galvanometer keep the best welding distance and angle relation with a workpiece; and the control system can adjust laser spots, laser focusing parameters and the like according to welding requirements, so that the welding quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of laser welding control technology, specifically to an intelligent control structure for laser welding of copper sheets and copper busbars. Background Technology

[0002] In many fields such as electrical equipment manufacturing and power transmission, the reliable connection between copper sheets and main copper busbars plays a crucial role; traditional connection methods mainly include bolt connection, riveting and ordinary arc welding.

[0003] While bolted connections are relatively simple to operate, they are prone to loosening at the connection points. Over time, factors such as equipment vibration can increase contact resistance, leading to overheating and affecting the normal operation and lifespan of electrical equipment. Riveting, on the other hand, struggles to guarantee a tight connection and consistent conductivity, and it cannot meet the requirements of some applications with stringent sealing conditions.

[0004] When ordinary arc welding is used to connect copper sheets to the main copper busbar, it is easy to generate a large heat-affected zone at the welding site, which changes the microstructure of the copper material, resulting in a decrease in its mechanical and electrical properties. At the same time, welding defects such as porosity and slag inclusions are prone to occur during the welding process, which seriously affects the welding quality. Moreover, the appearance of the weld is often not smooth and aesthetically pleasing, and a lot of grinding and other processing steps are required afterward.

[0005] With the development of laser technology, laser welding has been gradually applied to the field of metal connection due to its advantages such as high energy density, small heat-affected zone, fast welding speed and high weld quality. However, for specific welding objects such as copper sheets and main copper busbars, the existing laser welding equipment and processes still have shortcomings in terms of positioning accuracy, flexibility to adapt to copper sheets and main copper busbars of different sizes and specifications, and effective control of copper oxidation during the welding process, which makes it difficult to meet the needs of efficient and high-quality production. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide an intelligent control structure for laser welding of copper sheets and copper busbars, which can optimize welding parameters and ensure welding quality through automated monitoring of welding data.

[0007] The technical solution adopted by this utility model is: an intelligent control structure for laser welding of copper sheets and copper busbars, including a laser generator and an adjustment control component; the adjustment control component includes a control system connected to the laser generator, a welding galvanometer and a welding field mirror arranged vertically at the laser output end of the laser generator; the laser generator is also equipped with an automatic focusing module and a spot adjustment module connected to the control system.

[0008] This technical solution sets up an adjustment and control component on the laser generator. The control system of the adjustment and control component is used to control each component. The laser generator used for welding is installed on the robotic arm equipment and can be moved to the top of the workpiece to be welded to perform the welding process. It ensures that the welding field lens and welding galvanometer maintain the best welding distance and angle relationship with the workpiece. During the welding process, the control system can also adjust the laser spot and laser focusing parameters according to the welding needs to ensure the welding quality.

[0009] Preferably, the control system further includes a parameter setting system and a monitoring feedback system, wherein the parameter setting system is used to input welding parameters, and the monitoring feedback system is used to compare and analyze preset parameters and monitoring parameters.

[0010] Preferably, the monitoring feedback system is signal-connected to a monitoring camera module and a sensor module for monitoring welding parameters.

[0011] Preferably, the parameter setting system is signal-connected to a teach pendant assembly and a control button module.

[0012] Preferably, the laser generator is further provided below the welding field lens for pressing the workpiece for welding.

[0013] Preferably, the laser generator is provided with a mounting bracket for installing adjustment and control components.

[0014] The beneficial effects of this utility model are: it can improve the welding efficiency of copper busbars and copper sheets, realize automated control and adjustment through the control system, optimize welding parameters and welding process while ensuring welding quality, and increase the welding speed by about 20% compared with traditional laser welding methods by using a monitoring and feedback system. It also reduces rework caused by welding defects, speeds up the overall production cycle, is more suitable for the pace of large-scale industrial production, and helps enterprises increase production capacity and enhance market competitiveness. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a three-dimensional representation of the intelligent control structure for laser welding of copper sheets and copper busbars provided in this embodiment of the present invention.

[0017] Figure 2 This is a side view of the intelligent control structure for laser welding of copper sheets and copper busbars provided in an embodiment of this utility model.

[0018] Reference numerals in the attached diagram: laser generator 100, welding galvanometer 200, welding field mirror 300, clamping module 400, mounting bracket 500. Detailed Implementation

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0021] like Figure 1 and Figure 2 As shown in the figure, a specific embodiment of this utility model provides an intelligent control structure for laser welding of copper sheets and copper busbars, which is used to implement intelligent control during the laser welding process. It includes a laser generator 100 and an adjustment control component. The adjustment control component includes a control system connected to the laser generator 100, a welding galvanometer 200 and a welding field mirror 300 arranged vertically at the laser output end of the laser generator 100. The laser generator 100 is also provided with an automatic focusing module and a spot adjustment module connected to the control system.

[0022] like Figure 1 and Figure 2 As shown, in this embodiment, an adjustment and control component is provided on the laser generator 100. The control system of the adjustment and control component is used to control various components. The laser generator 100 used for welding is installed on the robotic arm equipment and can be moved above the workpiece to be welded to perform the welding process on its welding part. It ensures that the welding field mirror 300 and the welding galvanometer 200 maintain the best welding distance and angle relationship with the workpiece. During the welding process, the control system can also adjust the laser spot and laser focusing parameters according to the welding needs to ensure the welding quality. Therefore, under different working conditions, technicians can dynamically adjust the laser spot size, focal length and other parameters in real time according to the different thicknesses of the copper sheet and the main copper busbar and the welding process requirements to ensure that the laser energy is accurately focused on the welding part, so as to adapt to the welding of different specifications of weldments and realize adaptive welding of copper sheets and main copper busbars of different sizes.

[0023] like Figure 1 and Figure 2As shown, in practical applications, this device needs to be mounted on a robotic arm. The robotic arm has multiple degrees of freedom (usually 6 degrees of freedom or more, depending on the welding process requirements and workspace range), enabling it to freely extend, rotate, and position itself in three-dimensional space with extremely high motion precision. Each joint of the robotic arm is equipped with a high-performance servo motor and a precision reducer, which allows the laser generator 100 to move precisely to the target welding position after receiving control commands.

[0024] like Figure 1 and Figure 2 As shown, the control system also includes a parameter setting system and a monitoring feedback system. The parameter setting system is used to input welding parameters and is connected to a teach pendant assembly and a control button module. The monitoring feedback system is used to compare and analyze preset parameters and monitoring parameters and is connected to a monitoring camera module and a sensor module for monitoring welding parameters. Thus, the control and adjustment component integrates a welding parameter setting component, a welding process monitoring component, and a feedback adjustment component. Operators can set welding parameters and programs, such as laser power, welding speed, and pulse frequency, through the teach pendant assembly. The welding process monitoring module uses the monitoring camera module and sensor module to monitor temperature changes and weld formation in the welding area in real time. Based on the monitored data, it compares and analyzes with preset parameters and automatically fine-tunes parameters such as laser power and welding speed to ensure stable welding, reduce the heat-affected zone, and improve welding quality and efficiency.

[0025] like Figure 1 and Figure 2 As shown, a clamping module 400 for clamping the workpiece is also provided below the welding field lens 300 corresponding to the laser generator 100. The clamping module 400 is installed below the laser generator 100 to fix the welding position of the workpiece during welding.

[0026] like Figure 1 and Figure 2 As shown, in order to ensure that the control and adjustment components are stably installed at the moving end position of the robotic arm, this embodiment provides a mounting bracket 500 for installing the control and adjustment components on the laser generator 100.

[0027] like Figure 1 and Figure 2As shown, during actual operation, the operator selects the corresponding welding program through the teach pendant assembly. The teach pendant assembly has an intuitive and easy-to-understand operating interface, which clearly lists various preset welding program options. These programs have been determined in advance through extensive process experiments and optimizations based on factors such as different workpiece materials, thicknesses, and welding joint types. The operator only needs to select the corresponding welding program icon on the display module according to the specific characteristics of the workpiece to be welded to complete the selection operation.

[0028] The monitoring and feedback system operates synchronously during the welding process, providing real-time monitoring of the welding area. These parameters cover key elements such as laser power, pulse frequency, welding speed, and spot diameter. This allows technicians to carefully verify the welding area and parameters in the images using their professional knowledge and practical experience. If any abnormality is detected exceeding the preset allowable range, the system will immediately issue an alarm and automatically pause the welding operation, awaiting inspection and adjustment by technicians. This improves welding efficiency and quality.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not 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. 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, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An intelligent control structure for laser welding of copper sheets and copper busbars, comprising a laser generator (100), characterized in that, It also includes adjustment and control components; The adjustment and control component includes a control system that is signal-connected to the laser generator (100), a welding galvanometer (200) and a welding field mirror (300) located at the laser output end of the laser generator (100) and arranged vertically. The laser generator (100) is also equipped with an automatic focusing module and a spot adjustment module that are connected to the control system signal.

2. The intelligent control structure for laser welding of copper sheets and copper busbars according to claim 1, characterized in that, The control system also includes a parameter setting system and a monitoring feedback system. The parameter setting system is used to input welding parameters, and the monitoring feedback system is used to compare and analyze the preset parameters and the monitoring parameters.

3. The intelligent control structure for laser welding of copper sheets and copper busbars according to claim 2, characterized in that, The monitoring feedback system is connected to a monitoring camera module and a sensor module for monitoring welding parameters.

4. The intelligent control structure for laser welding of copper sheets and copper busbars according to claim 2, characterized in that, The parameter setting system is connected to a teach pendant assembly and a control button module.

5. The intelligent control structure for laser welding of copper sheets and copper busbars according to claim 1, characterized in that, The laser generator (100) is also provided with a clamping module (400) for clamping the welded workpiece below the welding field lens (300).

6. The intelligent control structure for laser welding of copper sheets and copper busbars according to claim 1, characterized in that, The laser generator (100) is provided with a mounting bracket (500) for installing adjustment and control components.

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