Control device for automatic welding equipment of vehicle refrigerator

Abstract

The application relates to a control device of an automatic welding equipment of a vehicle-mounted refrigerator, which comprises a main body frame and a controller, an electric control box is arranged below the main body frame, the controller is arranged in the electric control box, characterized in that the main body frame has a top surface, a collaborative robot is connected to the top surface; the collaborative robot is electrically connected with the controller, a welding gun and a CCD camera are respectively connected to one end of the collaborative robot away from the top surface of the main body frame; the collaborative robot arranged on the top surface of the main body frame cooperates with the welding gun and the CCD camera, automatic welding operation and visual monitoring are realized, a plurality of sensors work cooperatively, the technical problems of low efficiency and unstable quality of traditional manual welding are effectively solved, and the welding precision, the automation level and the real-time monitoring capacity are improved.

Description

Technical Field

[0001] This application relates to the field of automotive parts manufacturing technology, and more specifically, to a control device for an automatic welding equipment for vehicle-mounted refrigerators. Background Technology

[0002] As a crucial component of modern automobiles, the manufacturing process of in-vehicle refrigerators directly impacts their performance and reliability. Current production processes face numerous technical challenges in the welding stage: First, traditional manual welding methods are inefficient and produce inconsistent quality, requiring operators to maintain high concentration for extended periods, which can lead to fatigue and welding defects. Second, existing automated equipment struggles to achieve precise positioning and temperature control when dealing with the complex structure of in-vehicle refrigerators, particularly when handling curved joints and multi-angle welding. Furthermore, insufficient real-time monitoring during the welding process prevents the timely detection and correction of welding defects, compromising product sealing and structural strength. These issues severely restrict the production efficiency and quality of in-vehicle refrigerators, necessitating the development of an automated welding solution capable of precise control and real-time monitoring.

[0003] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0004] The purpose of this application is to address one or more of the aforementioned technical problems.

[0005] To meet any technical objective or solve any technical problem of this application, the following technical solution is adopted: A control device for an automatic welding equipment for a vehicle-mounted refrigerator, comprising a main frame and a controller, wherein an electrical control box is provided below the main frame and the controller is located inside the electrical control box, characterized in that the main frame has a top surface, on which a collaborative robot is connected; the collaborative robot is electrically connected to the controller, and a welding torch and a CCD camera are respectively connected to one end of the collaborative robot away from the top surface of the main frame.

[0006] Furthermore, this application also proposes that the end of the collaborative robot furthest from the top surface of the main frame is connected to a laser displacement sensor for detecting the height of the vehicle-mounted refrigerator.

[0007] Furthermore, this application also proposes that the end of the collaborative robot furthest from the top surface of the main frame is connected to a laser temperature sensor for real-time monitoring of the weld temperature.

[0008] Furthermore, this application also proposes that the top surface of the main frame has multiple through holes.

[0009] Furthermore, this application also proposes that a cover frame is provided above the main frame, and multiple cover plates are provided on the cover frame.

[0010] Furthermore, this application also proposes that the multiple cover panels include side cover panels and top cover panels.

[0011] Furthermore, this application also proposes that the cover plate is an acrylic sheet.

[0012] Furthermore, this application also proposes that the top cover plate has through holes.

[0013] Furthermore, this application also proposes that a connecting arm is slidably connected to the cover frame, and a touch control screen is connected to the end of the connecting arm away from the cover frame, and the touch control screen is electrically connected to the controller.

[0014] Furthermore, this application also proposes that a warning light be provided on the top cover plate, and the warning light be electrically connected to the controller.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: The control device and method of the automatic welding equipment for vehicle-mounted refrigerators provided in this application realize automated welding operation and visual monitoring by using a collaborative robot set on the top surface of the main frame in conjunction with a welding torch and a CCD camera. Combined with the collaborative work of multiple sensors, it effectively solves the technical problems of low efficiency and unstable quality of traditional manual welding, and has the advantages of improving welding accuracy, automation level and real-time monitoring capabilities.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this application.

[0018] Figure 2 This is a schematic diagram of the structure of this application.

[0019] Figure 3 This is a schematic diagram of the collaborative robot structure in this application.

[0020] The markings in the diagram are: 10. Main frame, 11. Top surface of main frame, 110. First through hole, 12. Electrical control box;

[0021] 20. Collaborative robot; 21. Welding torch; 22. CCD camera; 23. Laser displacement sensor; 24. Laser temperature sensor;

[0022] 30. Cover frame, 31. Cover plate, 32. Side cover plate, 33. Top cover plate, 330. Second through hole;

[0023] 40. Connecting arm; 41. Touch control screen; 42. Warning light;

[0024] 50. Car refrigerator. Detailed Implementation

[0025] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In existing technologies, the welding process for vehicle-mounted refrigerators has long relied on manual operation, resulting in poor quality stability and low production efficiency. While automated equipment can reduce manual intervention, it still faces drawbacks such as insufficient positioning accuracy and difficulty in dynamically adjusting parameters in complex, multi-faceted welding scenarios. For example, when welding curved joints in a refrigerator, traditional equipment struggles to correct the position of the welding torch 21 in real time, leading to uneven weld filling.

[0027] To address these issues, it is first necessary to break away from the rigid positioning mode of traditional equipment, and secondly, to solve the problem of the lack of real-time feedback in the welding process. Analysis revealed that the volatility of manual operation stems from insufficient perception of the weld point's condition, while existing automated equipment cannot adapt to product dimensional deviations. This leads to the following approach: introducing flexible actuators to achieve dynamic positioning, combining this with visual inspection technology to acquire real-time operating data, and constructing a closed-loop control system.

[0028] As a typical embodiment of this application, such as Figures 1 to 3 As shown, this application proposes a control device for an automatic welding equipment for a vehicle-mounted refrigerator, including a main frame 10 and a controller. An electrical control box 12 is located below the main frame 10, and the controller is housed within the electrical control box 12. A collaborative robot 20 is connected to the top surface 11 of the main frame. This robot is connected to a welding torch 21 and a CCD camera 22, and is electrically connected to the controller. (Refer to...) Figure 1The main frame 10 refers to the load-bearing structure supporting the equipment components, which can be implemented using a welded steel frame. Its top surface 11 provides an installation reference for the equipment's operating plane. The collaborative robot 20 refers to a flexible robotic arm with multi-degree-of-freedom motion capabilities, which can be implemented using a six-axis articulated industrial robot, used to precisely control the spatial position of the welding torch 21. The welding torch 21 refers to the tool for performing welding operations, which can be implemented using a gas metal arc welding torch 21, completing material connection through arc heating. The CCD camera 22 refers to an image acquisition device, which can be implemented using a high-resolution industrial camera, used to capture real-time images of the welding area. The collaborative robot 20 adjusts the posture of the welding torch 21 according to the controller's instructions, and the CCD camera 22 continuously captures images of the welding area and transmits the image data to the controller. The controller analyzes the image data to identify weld features and dynamically corrects the welding path parameters. When the position of the vehicle-mounted refrigerator 50 is detected to be off, the collaborative robot 20 immediately adjusts the trajectory of the welding torch 21 to ensure that the weld point accurately covers the target area. Compared to existing technologies, traditional equipment uses fixed program control of the welding path, which cannot cope with product position deviations. This solution, however, achieves dynamic compensation during the welding process through collaborative work between a robot 20 and visual inspection. In existing technologies, the position adjustment of the welding torch 21 relies on manual experience; this solution automatically generates control commands through image data analysis, significantly improving the timeliness of parameter adjustments. Thus, this application achieves real-time correction of the welding torch 21 trajectory, effectively solving the problem of misalignment in welding complex curved surfaces. Through closed-loop control of visual inspection and robot motion, the need for manual intervention is reduced, improving welding quality consistency. Simultaneously, it shortens equipment debugging time, adapting to rapid production changes for different product specifications.

[0029] As a typical embodiment of this application, such as Figure 1 and Figure 3As shown, this application further proposes that the end of the collaborative robot 20 furthest from the top surface 11 of the main frame is connected to a laser displacement sensor 23 for detecting the height of the vehicle-mounted refrigerator 50. The laser displacement sensor 23 is a device that measures the distance between the object surface and the sensor by emitting a laser beam and receiving the reflected signal. Specifically, it can be implemented using the triangulation principle or the time-of-flight principle, acquiring the installation height data of the vehicle-mounted refrigerator 50 in real time through a non-contact measurement method. Detecting the height of the vehicle-mounted refrigerator 50 refers to measuring the vertical distance between the actual position of the vehicle-mounted refrigerator 50 in the welding station and a preset reference surface. Specifically, this can be achieved using dynamic scanning or fixed-point ranging. The height data is fed back to the controller to adjust the welding path of the collaborative robot 20. The laser displacement sensor 23 is installed on the end effector of the collaborative robot 20, performing a three-dimensional spatial scan of the vehicle-mounted refrigerator 50 before welding to obtain its outer contour and installation height information. The controller generates compensation commands based on the height data, driving the collaborative robot 20 to adjust the spatial coordinates of the welding torch 21 to ensure that the welding trajectory matches the actual position of the joint of the vehicle-mounted refrigerator 50. During welding, the laser displacement sensor 23 continuously monitors the workpiece status. When a height deviation exceeds a threshold, the controller immediately pauses welding and triggers a position calibration procedure. Compared with existing technologies, such as... Figure 2 and Figure 3 As shown, traditional welding equipment relies on manual visual inspection or fixed program positioning, which cannot detect changes in the installation height of the vehicle-mounted refrigerator 50 in real time, leading to welding path misalignment or uneven solder filling. This solution, however, utilizes the dynamic detection function of the laser displacement sensor 23 to enable the welding equipment to automatically adapt to differences in the installation height of workpieces of different sizes, eliminating welding quality defects caused by manual intervention or equipment positioning errors. This application solves the problem of inaccurate positioning of the welding torch 21 caused by installation height deviation of the vehicle-mounted refrigerator 50 in traditional welding processes, achieving precise matching between the welding path and the workpiece joint, effectively reducing weld misalignment, insufficient solder filling, or overflow, thereby improving the sealing performance and structural strength consistency of the vehicle-mounted refrigerator 50.

[0030] As a typical embodiment of this application, such as Figure 1 and Figure 2As shown, this application further proposes that a laser temperature sensor 24 for real-time monitoring of the weld temperature is connected to one end of the collaborative robot 20 away from the top surface 11 of the main frame. The laser temperature sensor 24 is an optical device that measures the temperature of the welding area in a non-contact manner. Specifically, it can use a laser beam with a wavelength range of 500-1700nm to scan the weld and calculate the temperature value by receiving the thermal radiation signal in the reflected spectrum. Real-time monitoring of the weld temperature means continuously acquiring temperature data at millisecond intervals. Specifically, an analog-to-digital converter can be used to convert the analog signal output by the sensor into a digital signal, and the data can be synchronously transmitted to the controller through a communication interface. The laser temperature sensor 24 is mounted on the end effector of the collaborative robot 20, on the same working plane as the welding torch 21. During welding, the laser beam emitted by the sensor is aimed at the weld area, and the temperature distribution data is analyzed in real time by receiving the thermal radiation signal. When the welding torch 21 starts heating, the controller continuously receives temperature feedback from the sensor and dynamically adjusts the welding current, moving speed, or dwell time according to preset thresholds. For example, when the temperature exceeds the stable range of the molten pool, the controller immediately reduces the power of the welding torch 21 to prevent overheating; if the temperature is below the effective welding threshold, the dwell time of the welding torch 21 is extended to ensure the penetration depth meets the requirements. Compared with existing technologies, traditional welding equipment relies on preset programs to fix heating parameters, which cannot be adjusted according to actual working conditions, leading to temperature fluctuations and welding defects. This solution eliminates temperature deviations caused by differences in material thermal conduction or environmental interference through real-time temperature monitoring and dynamic parameter adjustment, ensuring that the welding process remains stable. This application effectively solves the problems of overheating, underheating, and porosity caused by temperature runaway during welding, significantly improves the uniformity and density of the weld, and reduces rework rate and material loss caused by abnormal temperature.

[0031] As a typical embodiment of this application, such as Figure 1As shown, this application further proposes that the top surface 11 of the main frame has multiple first through holes 110. The top surface 11 of the main frame refers to the horizontal load-bearing structure supporting the collaborative robot 20 and peripheral equipment. Specifically, it can be formed from metal sheet through stamping or cutting, and its surface flatness must meet the stability requirements of robot installation. The multiple first through holes 110 refer to a uniformly distributed through-hole structure on the top surface 11. Specifically, they can be circular, square, or irregularly shaped holes processed by CNC drilling or laser cutting. The hole spacing and diameter are designed to match the heat dissipation requirements and structural strength requirements. The setting of the first through holes 110 can promote the rapid dissipation of heat inside the equipment, preventing deformation of the frame due to localized temperature rise. During the welding process, the heat generated by the collaborative robot 20 and the welding torch 21 will be conducted to the top surface 11 area through the main frame 10. If the heat cannot be dissipated in time, it may cause the frame to expand due to heat, thereby affecting the positioning accuracy of the robot's end effector. By opening multiple first through holes 110 on the top surface 11, an air circulation path is formed, accelerating the heat exchange process and effectively reducing the temperature gradient on the frame surface. Meanwhile, the layout of the first through-hole 110 is optimized according to the heat source distribution. For example, the density of the first through-hole 110 is increased near the working area of ​​the welding torch 21, allowing heat to dissipate quickly through natural convection or forced air cooling, thereby maintaining the stability of the frame structure and ensuring the accuracy of the robot's motion trajectory. Compared with existing technologies, the frame structure of traditional vehicle-mounted refrigerator welding equipment usually adopts a closed top surface design, which leads to internal heat accumulation and is prone to frame deformation and overheating failure of electronic components. This solution, by introducing a through-hole structure, not only solves the problem of low heat dissipation efficiency, but also optimizes the heat dissipation path by rationally arranging the positions of the first through-hole 110, while ensuring the mechanical strength of the frame, and avoids welding positioning deviations caused by thermal deformation. This application effectively suppresses the thermal expansion of the frame during the operation of the welding equipment, reduces robot positioning errors caused by temperature fluctuations, thereby ensuring that the welding torch 21 maintains precise trajectory control during the welding of complex curved surfaces, and improves the sealing performance and structural strength consistency of the weld seam of the vehicle-mounted refrigerator shell.

[0032] As a typical embodiment of this application, such as Figures 1 to 3As shown, this application further proposes a cover frame 30 above the main frame 10, with multiple cover plates 31 on the cover frame 30. The cover frame 30 refers to the protective structure covering the main frame 10, specifically a metal frame or a high-strength plastic frame fixedly installed with connectors, used to form a physical isolation zone during welding to block the leakage of spatter, smoke, and strong light. The multiple cover plates 31 refer to a closed or semi-closed structure formed by splicing multiple independent plates, specifically made of transparent or semi-transparent materials and equipped with quick-release interfaces, facilitating operators to observe the welding process and perform equipment maintenance. The cover frame 30 is installed on top of the main frame 10 by bolts or clips, and its internal space accommodates the collaborative robot 20 and welding execution components. The multiple cover plates 31 are respectively fixed to the sides and top of the cover frame 30, with the side cover plates 32 covering the side areas to prevent the lateral spread of welding spatter, and the top cover plate 31 covering the top area to reduce the accumulation of rising smoke. When internal equipment needs maintenance, an operating window can be created by removing a specific cover plate 31, without completely disassembling the entire protective structure. Traditional welding equipment often lacks an overall protective structure, leaving welding spatter and fumes directly exposed to the working environment, easily causing equipment contamination and posing safety hazards. This solution, through the modular cover frame 30 and removable cover plate 31, maintains the enclosure of the welding area while ensuring equipment maintainability. This application effectively blocks the interference of welding spatter, fumes, and strong light on surrounding equipment and personnel, reducing equipment failure rate and maintenance frequency. The modular cover plate 31 design allows operators to quickly open specific areas for maintenance or parameter adjustments, avoiding increased downtime caused by frequent disassembly of the overall protective structure.

[0033] As a typical embodiment of this application, such as Figure 1As shown, this application further proposes multiple cover plates 31, including side cover plates 32 and top cover plates 31. Side cover plates 32 refer to protective structures installed on the sides of the equipment, specifically implemented using a combination of a metal frame and transparent panels, used to block external foreign object splashes and maintain the enclosure of the welding area. Top cover plates 33 refer to protective structures covering the top of the equipment, specifically implemented using a detachable panel splicing method, used to prevent foreign objects from intruding into the welding area, while facilitating observation of the internal working status. Side cover plates 32 are fixed to the edge of the main frame 10, forming a side barrier surrounding the collaborative robot 20; top cover plates 33 cover the side cover plates 32, together forming a complete protective space. Side cover plates 32 and top cover plates 33 are connected by snaps or bolts, achieving modular assembly and disassembly, facilitating equipment maintenance and component replacement. This split structure optimizes the accessibility of the internal space of the equipment while ensuring protective performance. Traditional welding equipment typically uses an integral protective cover, requiring complete removal of the cover during maintenance, affecting work efficiency. The separate design of the side cover plate 32 and top cover plate 33 allows for individual disassembly of specific areas. When cleaning the laser sensor or adjusting the position of the welding torch 21, only the corresponding area of ​​the cover plate 31 needs to be removed, significantly reducing downtime. This application enables rapid maintenance and precise operation support for the protective structure of welding equipment, avoiding the risk of equipment contamination caused by the complete removal of the protective cover, while ensuring the stability of the temperature field and working environment during welding, effectively reducing welding defects caused by foreign object interference.

[0034] As another embodiment of this application, such as Figure 1As shown, this application further proposes a control device for an automatic welding equipment for vehicle-mounted refrigerators, wherein the cover plate 31 is an acrylic sheet. The acrylic sheet refers to a transparent sheet made of polymethyl methacrylate (PMMA), specifically a sheet with a thickness of 5 mm to 15 mm. This material serves as a light-transmitting observation element in the welding equipment, allowing operators to directly observe the welding process while maintaining the integrity of the cover structure. The cover plate 31 is a protective component covering the surface of the cover frame 30, specifically implemented using a combination of side cover plates 32 and top cover plates 33. This component forms an isolation space during the welding process, blocking external environmental interference to the welding area. As the covering material for the cover frame 30, the acrylic sheet's light-transmitting properties allow for real-time observation of the molten pool state and robot trajectory during the welding process. In the scenario of welding multi-curved surfaces of the vehicle-mounted refrigerator shell, the operator can directly confirm the positioning accuracy of the welding torch 21 through the transparent cover plate 31, avoiding welding misalignment caused by blind spots. Simultaneously, the material's thermal stability can withstand the heat dissipated during welding, preventing the cover from deforming due to high temperatures and affecting the equipment's operational stability. Traditional welding equipment often uses metal mesh or frosted plastic as protective cover materials, which suffers from insufficient observation clarity. The application of acrylic sheets overcomes the visual monitoring barrier, retaining the protective function while enabling operational visualization. Compared with opaque covers, it reduces the number of equipment start-ups and shutdowns, and improves the continuous monitoring capability of the welding process. This application effectively solves the problem of low efficiency of manual inspection in the welding process, achieving visual monitoring of welding quality while maintaining protective performance, reducing the delay in process parameter adjustment caused by visual obstruction, thereby improving the first-pass yield of complex curved surface welding tasks.

[0035] As another embodiment of this application, such as Figure 1 and Figure 3As shown, this application further proposes a control device for an automatic welding equipment for a vehicle-mounted refrigerator, wherein the top cover plate 33 has a second through hole 330. The top cover plate 33 refers to the top protective plate covering the main frame 10, which can be made of lightweight and transparent materials such as acrylic sheet, to protect the internal components of the equipment and provide an operating view. The second through hole 330 refers to a hole structure that penetrates the thickness of the top cover plate 33, which can be a circular, square or other regular shape opening, processed by stamping or cutting, to promote airflow inside the equipment. The second through hole 330 of the top cover plate 33 allows the heat generated during the welding process to be discharged to the outside through natural convection or forced ventilation, while cold air from the external environment can enter the equipment through the second through hole 330, forming a circulating heat dissipation path. After the heat is transferred from the electrical control box 12, collaborative robot 20 and other components to the area of ​​the top cover plate 33, it exchanges heat with the outside air through the through hole, thereby preventing heat from accumulating inside the cover frame 30 and maintaining the temperature stability of the controller and welding actuator. For example, during continuous welding operations, through-holes can accelerate heat dissipation, preventing signal drift or component failure caused by high temperatures in the controller. Traditional welding equipment's enclosed housing frame 30 lacks an active heat dissipation structure, leading to internal heat retention and potentially causing overheating of electronic components or deviations in welding parameters from the set range. This application addresses this by providing through-holes in the top cover plate 33, utilizing air convection to achieve passive heat dissipation without relying on additional cooling devices. This reduces equipment complexity and avoids welding quality degradation due to temperature fluctuations. This application effectively solves the problem of decreased control accuracy caused by internal temperature rise in welding equipment. By optimizing the heat dissipation path, it maintains the stability of the welding torch 21 temperature and the electronic control system, thereby reducing defects such as weld porosity, insufficient penetration, or solder spatter caused by abnormal temperatures, and improving the consistency and reliability of the vehicle-mounted refrigerator welding structure.

[0036] As another embodiment of this application, such as Figure 1 and Figure 2As shown, this application further proposes a connecting arm 40 slidably connected to the cover frame 30, with a touch control screen 41 connected to the end of the connecting arm 40 away from the cover frame 30. The touch control screen 41 is electrically connected to the controller. The sliding connection refers to the relative displacement between the connecting arm 40 and the cover frame 30 achieved through a movable mechanism, specifically a linear guide rail or roller structure, used to flexibly adjust the spatial position of the touch control screen 41. The connecting arm 40 refers to the support structure carrying the touch control screen 41, specifically a multi-segment foldable or telescopic robotic arm, used to adapt to different operating angles and height requirements. The touch control screen 41 refers to a display terminal with touch interaction functions, specifically a capacitive or resistive touch panel, used for real-time input of welding parameters and receiving feedback data from the controller. The connecting arm 40 is mounted on the side guide rail of the cover frame 30 via a sliding mechanism, and the operator can adjust its lateral position manually or electrically. The touch control screen 41 is fixed to the end of the connecting arm 40 and connected to the controller via a cable or wireless communication module. It displays the temperature, welding torch 21 coordinates, and equipment operating status parameters in real time during the welding process. When it is necessary to adjust the welding path or correct parameters, the operator can directly input commands on the touch screen interface, and the controller will synchronously update the motion trajectory and welding parameters of the collaborative robot 20. In some specific embodiments, the sliding stroke of the connecting arm 40 can cover two-thirds of the length of the cover frame 30, allowing the touch control screen 41 to move to different workstations as needed. For example, a limit slot can be set on the guide rail surface to fix the connecting arm 40 in a specific position and prevent unexpected sliding. The control interface of traditional welding equipment is usually fixed on the surface of the electrical control box 12, requiring operators to frequently travel between different areas of the equipment to adjust parameters, resulting in low efficiency. In contrast, this solution extends the human-machine interface to the vicinity of the welding workstation through the sliding touch control screen 41, reducing the operation movement distance and supporting multi-workstation collaborative operation. This application enables close-range operation of welding parameter adjustment and equipment monitoring, reducing downtime caused by manual back-and-forth movement and improving the response speed and control accuracy of the welding process. The real-time data display function of the touch control screen 41 further reduces welding defects caused by parameter lag, such as overheating or insufficient penetration.

[0037] This application further proposes that a warning light 42 be provided on the top cover plate 33, and the warning light 42 is electrically connected to the controller. The top cover plate 33 refers to the protective plate covering the top of the cover frame 30, which can be made of acrylic sheet or tempered glass, used to isolate spatter and strong light radiation generated during welding. Through holes on its surface allow equipment components to pass through and be installed while maintaining the integrity of the protective function. The warning light 42 is an indicator device that transmits the operating status of the equipment through light signals, specifically using a multi-color LED light group. Through the controller's preset program logic, different colors and flashing frequencies are switched according to the operating stage of the welding equipment, fault codes, or abnormal operating conditions. This device is fixed to the outer surface of the top cover plate 33 to ensure that the operator can clearly observe it from different angles. The control signal for the warning light 42 comes from the operating data of the collaborative robot 20, the welding torch 21, and various sensors. When the welding temperature exceeds the preset threshold, the laser displacement detects workpiece positioning deviation, or the welding torch 21 becomes blocked, the controller sends a command to the warning light 42 to trigger a red flashing. During the normal execution phase of the welding process, the warning light 42 remains constantly green; after the welding task is completed, it switches to a blue breathing light mode. This working logic allows operators to quickly determine the equipment status simply by observing the color change of the warning light 42, without needing to continuously monitor the data on the touch control screen 41. Traditional welding equipment typically relies on buzzer alarms or text prompts on the control screen, which are easily overlooked in noisy workshop environments, and fault types require manual consultation of code tables for identification. This solution achieves real-time visualization of equipment operating information through visual status indications, significantly reducing operators' reliance on complex interfaces and shortening response time to abnormal operating conditions. This application realizes real-time visual feedback of equipment operating status, effectively avoiding welding quality defects caused by human error, while reducing the workload of operators monitoring equipment for extended periods, ensuring the continuity and safety of the welding process.

[0038] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

[0039] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has been disclosed above with reference to preferred embodiments, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A control device for an automatic welding equipment for a vehicle-mounted refrigerator, comprising a main frame and a controller, wherein an electrical control box is disposed below the main frame, and the controller is disposed within the electrical control box, characterized in that, The main frame has a top surface on which a collaborative robot is connected. The collaborative robot is electrically connected to the controller. A welding torch and a CCD camera are connected to one end of the collaborative robot away from the top surface of the main frame. A laser displacement sensor for detecting the height of the vehicle-mounted refrigerator is also connected to one end of the collaborative robot away from the top surface of the main frame.

2. The control device for the automatic welding equipment for vehicle-mounted refrigerators according to claim 1, characterized in that, The collaborative robot is also connected to a laser temperature sensor at the end furthest from the top surface of the main frame for real-time monitoring of the weld temperature.

3. The control device for the automatic welding equipment for vehicle-mounted refrigerators according to claim 1, characterized in that, The top surface of the main frame has multiple first through holes.

4. The control device for the automatic welding equipment for vehicle-mounted refrigerators according to claim 1, characterized in that, The main frame is provided with a cover frame above it, and the cover frame is provided with multiple cover plates.

5. The control device for the automatic welding equipment for vehicle-mounted refrigerators according to claim 4, characterized in that, The multiple cover panels include side cover panels and top cover panels.

6. The control device for the automatic welding equipment for vehicle-mounted refrigerators according to claim 4, characterized in that, The cover plate is made of acrylic sheet.

7. The control device for the automatic welding equipment for vehicle-mounted refrigerators according to claim 5, characterized in that, The top cover plate has a second through hole.

8. The control device for the automatic welding equipment for vehicle-mounted refrigerators according to claim 4, characterized in that, A connecting arm is slidably connected to the cover frame, and a touch control screen is connected to one end of the connecting arm away from the cover frame. The touch control screen is electrically connected to the controller.

9. The control device for the automatic welding equipment for vehicle-mounted refrigerators according to claim 5, characterized in that, The top cover is equipped with a warning light, which is electrically connected to the controller.

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