Back-heating device and back-heating method

Abstract

This application relates to the field of marine technology, and in particular to a back-heating device and method. In the embodiments of this application, a conveying mechanism transports the workpiece to be back-heated to the desired position, and the position of the back-heating gun is adjusted by the adjusting unit and distance detection device of the back-heating mechanism, thereby realizing the transport and back-heating of the workpiece and improving back-heating efficiency. During this process, the controller controls the adjusting unit to adjust the position of the back-heating gun and control the back-heating parameters of the back-heating gun based on the conveying status information of the conveying mechanism, the detection information of the distance detection device, and the detection information of the vision inspection mechanism, thereby improving the back-heating quality. Therefore, the back-heating device and method provided in the embodiments of this application, through the cooperation of various components, can improve both back-heating efficiency and back-heating quality.

Description

Technical Field

[0001] This application relates to the field of marine technology, and in particular to a back-burning device and a back-burning method. Background Technology

[0002] In the shipbuilding industry, longitudinal hull skeletons, as core load-bearing components of the hull structure, are characterized by a large number of welds and long individual lengths. Their welding quality directly affects the overall structural strength and stability of the hull. During the welding process of longitudinal hull skeletons, uneven heat input can easily lead to residual stress in local areas, which can cause workpiece deformation. If not addressed in time, this can seriously interfere with the smooth progress of subsequent assembly, painting, and other processes, reducing the precision of shipbuilding production.

[0003] Back-heating is a key method to solve the above problems. This process effectively eliminates residual stress inside the material after welding by heating and high-temperature treatment, corrects longitudinal bone welding deformation, and ensures the dimensional accuracy and structural stability of the workpiece. However, how to improve back-heating efficiency and quality is an urgent problem to be solved. Summary of the Invention

[0004] Based on this, embodiments of this application provide a back-heating device and a back-heating method to improve back-heating efficiency and back-heating quality.

[0005] According to one aspect of this application, an embodiment provides a back-burning device, including multiple conveying mechanisms, multiple back-burning mechanisms, multiple visual inspection mechanisms, and a controller. The conveying mechanisms and back-burning mechanisms are arranged alternately along a first direction. The conveying mechanisms are used to convey the component to be back-burned along the first direction. Each back-burning mechanism includes an adjustment unit, a back-burning gun, and a distance detection component. The adjustment unit includes a first moving component and a lifting component connected to the first moving component. The first moving component is used to drive the lifting component to move along a second direction. The back-burning gun is used to back-burn the component. Both the back-burning gun and the distance detection component are connected to the lifting component. The lifting component is used to drive the back-burning gun and the distance detection component to move along a third direction. The first direction, the second direction, and the third direction are perpendicular to each other. Multiple visual inspection mechanisms are arranged one-to-one with the multiple back-burning mechanisms. Each visual inspection mechanism is located on the top side of its corresponding back-burning mechanism and is used to detect information about the back-burning position of the component to be back-burned. The controller is electrically connected to the conveying mechanism, the back-burning mechanism, and the vision inspection mechanism. The controller is used to control the adjustment unit to adjust the position of the back-burning gun and control the back-burning parameters of the back-burning gun based on the conveying status information of the conveying mechanism, the detection information of the distance detection component, and the detection information of the vision inspection mechanism.

[0006] In one embodiment, the adjustment unit further includes a second moving component. The second moving component is disposed on the lifting component and is connected to both the back-burning gun and the distance detection element. The second moving component is used to drive both the back-burning gun and the distance detection element to move along a first direction.

[0007] In one embodiment, the back-burning device also includes a floating connector, through which both the back-burning gun and the distance detection element are connected to the lifting assembly.

[0008] In one embodiment, the back-burning mechanism further includes a rolling element; the back-burning gun, the distance detection element, and the rolling element are all connected to the lifting assembly; the rolling element is positioned further away from the lifting assembly than the back-burning gun; and / or, the back-burning mechanism further includes a temperature detection element; the temperature detection element is connected to the back-burning gun, and the controller is also electrically connected to the temperature detection element, and the controller is also used to adjust the back-burning parameters according to the detection information of the temperature detection element; and / or, the adjustment unit, the back-burning gun, and the distance detection element constitute a back-burning assembly, and the back-burning mechanism includes multiple back-burning assemblies arranged along a second direction; and / or, the back-burning device further includes multiple driving mechanisms; the multiple driving mechanisms and multiple vision detection mechanisms are arranged in a one-to-one correspondence, the driving mechanism is connected to the corresponding vision detection mechanism, and the driving mechanism is used to drive the vision detection mechanism to move along the second direction; and / or, the adjustment unit further includes a guide element; one of the first moving assembly and the lifting assembly is provided with a guide element, and the other of the first moving assembly and the lifting assembly is provided with a guide hole, and the guide element is movably inserted through the guide hole along a third direction.

[0009] According to another aspect of this application, embodiments of this application also provide a back-heating method, which is applied to the back-heating device in any of the above embodiments. The back-heating method includes:

[0010] The back-burning gun is aligned with the longitudinal weld seam of the back-burning component by conveying the component along the first direction through the conveying mechanism.

[0011] The lifting assembly is controlled to move along a third direction, causing the back-burning gun and the distance detection component to move closer to the back-burning component simultaneously; when the distance detected by the distance detection component is within a preset range, the lifting assembly is controlled to stop moving.

[0012] Based on the detection information from the visual inspection agency, back-burning parameters are generated; the back-burning gun is controlled to back-burn the part to be back-burned according to the back-burning parameters.

[0013] After the back heat treatment is completed, the flatness of the back heat treatment part is checked by a visual inspection agency. If the flatness does not meet the preset standard, the back heat treatment parameters are adjusted based on the flatness and the back heat treatment is repeated. The adjustment of back heat treatment parameters and the back heat treatment process are repeated until the flatness meets the preset standard.

[0014] In one embodiment, the component to be back-burned is conveyed along a first direction by a conveying mechanism to align the back-burning torch with the longitudinal weld seam, including:

[0015] During the process of conveying the component to be burned along the first direction by the conveying mechanism, the position of the component to be burned is detected by the positioning detection component.

[0016] When the edge of the component to be burned reaches the detection area of ​​the in-position detection component, a stop calculation is triggered to obtain the delay stop duration of the conveying mechanism.

[0017] The control conveyor continues to convey, and when the delay stop time is reached, the control conveyor stops running, so that the back burner is aligned with the longitudinal weld seam.

[0018] In one embodiment, the back-burning component is conveyed along a first direction by a conveying mechanism to align the back-burning torch with the longitudinal weld seam, and the method further includes:

[0019] The second moving component of the control adjustment unit moves along the first direction to further align the back-burning torch with the longitudinal weld seam; the back-burning torch and the distance detection component are both connected to the lifting component via the second moving component.

[0020] And / or, trigger stop calculation to obtain the delayed stop duration of the conveyor mechanism, including:

[0021] Based on the distance between the longitudinal rib of the component to be heated and the edge of the component, calculate the remaining travel distance of the component from its current position to the target stopping point. The target stopping point is the preset position where the back-heating gun and the longitudinal rib weld are initially aligned.

[0022] The target conveying speed of the conveying mechanism is determined based on the longitudinal rib length of the component to be back-burned and the preset back-burning efficiency.

[0023] Based on the remaining travel and the target conveying speed, the basic delay time is calculated; the basic delay time is then added to the inertia compensation time caused by the conveying rollers to obtain the delayed stop time.

[0024] In one embodiment, backburn parameters are generated based on the detection information from the visual inspection mechanism, including:

[0025] Based on the features detected by the visual inspection agency, a feature vector of the component to be back-burned is constructed; the features include the plate thickness and aggregate type of the component to be back-burned.

[0026] Based on the feature vector, retrieve the matching standard back-heating parameters from the back-heating parameter database; correct the standard back-heating parameters based on the current process correction coefficient to obtain intermediate back-heating parameters;

[0027] Based on the historical successful operation records in the back-burning parameter database, the historical successful operation records that match the current working condition are selected according to the similarity between the feature vector of the part to be back-burned and the feature vector of the part to be back-burned in the historical successful operation records, and the corresponding historical process correction coefficients are obtained.

[0028] The intermediate back-burning parameters are corrected based on the historical process correction factor to obtain the back-burning parameters.

[0029] In one embodiment, the intermediate backburning parameters are corrected based on historical process correction factors to obtain the backburning parameters, including:

[0030] When there are multiple historical successful operation records that match the current working condition, the intermediate back-burning parameters are corrected based on the historical process correction coefficient used for each corresponding one to obtain multiple sets of candidate back-burning parameters; among them, the historical successful operation records that match the current working condition correspond to historical correction residuals and unit deformation energy consumption.

[0031] From multiple sets of candidate back-burning parameters, remove those whose historical correction residuals exceed the tolerance threshold. If at least two sets of candidate back-burning parameters remain, sort the remaining sets of candidate back-burning parameters by unit deformation energy consumption, and filter them according to the sorting results to obtain the back-burning parameters.

[0032] In one embodiment, controlling the back-heating gun to back-heat the component to be back-heated according to back-heating parameters includes:

[0033] The temperature generated during the back-heating process is monitored by a temperature sensor; the back-heating parameters are adjusted according to the temperature to maintain the temperature generated during the back-heating process within a preset range; when the temperature is below the preset threshold, the moving speed of the back-heating gun is reduced or the gas output is increased; when the temperature reaches the material phase transition red line, the moving speed of the back-heating gun is increased or the distance between the back-heating gun and the part to be back-heated is increased.

[0034] And / or, before generating the backburn parameters based on the detection information from the visual inspection agency, the following steps are also included:

[0035] The spacing between two adjacent back-heating components along the second direction is controlled according to the longitudinal rib length of the component to be heated; the back-heating mechanism includes multiple sets of adjustment units, back-heating guns and distance detection components, and each set of adjustment units, back-heating guns and distance detection components constitutes a back-heating component.

[0036] In the aforementioned back-heating device and method, the back-heating device includes at least a conveying mechanism, a back-heating mechanism, a visual inspection mechanism, and a controller. The conveying mechanism transports the workpiece to be back-heated to the desired position, and the back-heating mechanism's adjustment unit and distance detection device adjust the position of the back-heating gun, thereby achieving the conveying and back-heating of the workpiece and improving back-heating efficiency. During this process, the controller, based on the conveying status information of the conveying mechanism, the detection information of the distance detection device, and the detection information of the visual inspection mechanism, controls the adjustment unit to adjust the position of the back-heating gun and control the back-heating parameters of the back-heating gun, thereby improving the back-heating quality. Therefore, the back-heating device and method provided in this application, through the cooperation of various components, can improve both back-heating efficiency and back-heating quality. Attached Figure Description

[0037] Figure 1 This is a top view of the structure of the component to be back-burned in some embodiments of this application;

[0038] Figure 2 This is a side view of the back-burning component in some embodiments of this application;

[0039] Figure 3 This is a top view of the back-burning device in some embodiments of this application;

[0040] Figure 4 This is a side view of the back-burning device in some embodiments of this application from one perspective.

[0041] Figure 5 for Figure 3 A magnified schematic diagram of the local structure at point A;

[0042] Figure 6 This is a schematic diagram of the back-burning mechanism in some embodiments of this application from one perspective;

[0043] Figure 7 This is a schematic diagram of the back-burning mechanism in some embodiments of this application from another perspective;

[0044] Figure 8 This is a schematic diagram of a portion of the back-burning device in some embodiments of this application from one perspective.

[0045] Figure 9 This is a side view of the back-burning device in some embodiments of this application from another perspective.

[0046] Figure 10 This is a flowchart illustrating the back-burning method in some embodiments of this application;

[0047] Figure 11 This is a flowchart illustrating step S110 of the back-burning method in some embodiments of this application;

[0048] Figure 12 This is a flowchart illustrating step S112 of the back-burning method in some embodiments of this application.

[0049] Explanation of reference numerals in the attached figures:

[0050] 10 pieces to be burned on the back, 11 pieces of body, 12 longitudinal bones;

[0051] Back-heating device 100;

[0052] Conveying mechanism 110, arrival detection component 1101, support platform 1102;

[0053] Back-burning mechanism 120, back-burning component 121, adjusting unit 1211, first moving component 1211a, first main body Z1, first motor D1, first gear C1, first rack T1, lifting component 1211b, lifting cylinder 1201, mounting base 1202, second moving component 1211c, second main body Z2, second motor D2, second gear C2, second rack T1, back-burning gun 1212, distance detection component 1213, rolling component 1214, guide component 122, guide rail 101;

[0054] 130 visual inspection agencies;

[0055] Floating connector 140;

[0056] Temperature sensing element 150;

[0057] Drive mechanism 160;

[0058] Protective component 170;

[0059] First direction F1, second direction F2, third direction F3. Detailed Implementation

[0060] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0061] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application.

[0062] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0063] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0064] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0065] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0066] To facilitate the explanation of the back-heating device and back-heating method provided in the embodiments of this application, the back-heating component involved in the embodiments of this application will be described first by way of example.

[0067] Please refer to Figure 1 and Figure 2 , Figure 1 This is a top view of the structure of the component 10 to be back-burned in some embodiments of this application. Figure 2This is a side view of the back-burning component 10 in some embodiments of this application. Taking a sheet body from the shipbuilding industry as an example, the back-burning component 10 includes a sheet body 11 and longitudinal ribs 12. Multiple longitudinal ribs 12 are welded to one side surface of the sheet body 11 along its thickness direction to increase the strength of the sheet body 11 and to prepare for the next process. There are welded seams of the longitudinal ribs 12 at the connection between the longitudinal ribs 12 and the sheet body 11. The longitudinal ribs 12 can be profiles, and the arrangement direction of the multiple longitudinal ribs 12 is a first direction F1, the longitudinal length direction of the longitudinal ribs 12 is a second direction F2, and the thickness direction of the sheet body 11 is a third direction F3. The first direction F1, the second direction F2, and the third direction F3 are perpendicular to each other. The number of longitudinal ribs 12 is not specifically limited here.

[0068] According to some embodiments of this application, please refer to Figures 3 to 5 , Figure 3 This is a top view of the back-heating device 100 in some embodiments of this application. Figure 4 This is a side view of the back-burning device 100 in some embodiments of this application from one perspective. Figure 5 for Figure 3 The enlarged structural diagram at point A shows that this application provides a back-burning device 100, which includes multiple conveying mechanisms 110, multiple back-burning mechanisms 120, multiple visual inspection mechanisms 130, and a controller.

[0069] The conveying mechanism 110 is used to convey the component 10 to be back-burned along the first direction F1. The conveying mechanism 110 is the main transfer component for the directional transfer and station positioning of the component 10 to be back-burned, providing stable conveying and positioning support for automated back-burning operations. Exemplarily, the conveying mechanism 110 includes multiple conveying units arranged at intervals along the second direction F2. Each conveying unit includes multiple conveying rollers and a conveyor belt wound around the multiple conveying rollers. Of course, in other embodiments, the conveying mechanism 110 may also be a chain conveyor, a roller conveyor, etc., and no specific limitation is made here.

[0070] The back-heating mechanism 120 is the main component for eliminating residual stress and correcting welding deformation after welding the longitudinal rib 12 and the sheet 11. The back-heating mechanism 120 performs controlled heat treatment on the back side of the welding area of ​​the longitudinal rib 12 through high-temperature heating, so as to release the residual stress generated during the welding process, restore the dimensional accuracy of the workpiece, improve the structural stability of the longitudinal rib 12, and provide a qualified component foundation for subsequent hull assembly processes.

[0071] The conveying mechanism 110 and the back-heating mechanism 120 are arranged alternately along the first direction F1. That is, along the first direction F1, the conveying mechanism 110, the back-heating mechanism 120, the conveying mechanism 110, the back-heating mechanism 120, the conveying mechanism 110, the back-heating mechanism 120, and so on, are arranged sequentially. Of course, it is also possible that the first and last parts along the first direction F1 are both back-heating mechanisms 120. For example, with... Figure 3 and Figure 4 For example, the case where both ends of the first direction F1 are conveying mechanisms 110 is illustrated.

[0072] For example, since there is a gap between two adjacent conveying mechanisms 110 along the first direction F1, a back-burning mechanism 120 is provided within this gap. This gap can be arranged in a one-to-one correspondence with the longitudinal ribs 12, and correspondingly, the conveying mechanisms 110 can be arranged according to the required number of gaps. Of course, the number of gaps can be greater than or less than the number of longitudinal ribs 12. In one feasible implementation, when the number of gaps is less than the number of longitudinal ribs 12, the relative positional relationship between the longitudinal ribs 12 and the gaps can be adjusted by rotating the conveying mechanisms 110 in both directions. Alternatively, the longitudinal ribs 12 and the gaps can be aligned during the conveying of the back-burning component 10 along the first direction F1, allowing for step-by-step back-burning. No specific limitations are imposed here. For example, Figure 3 The illustration shows a configuration where the back-burning mechanism 120 has six units spaced at intervals.

[0073] Combined with reference Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the back-burning mechanism 120 in some embodiments of this application from one view. Figure 7 This is a schematic diagram of the back-burning mechanism 120 in some embodiments of this application from another perspective. The back-burning mechanism 120 includes an adjustment unit 1211, a back-burning gun 1212, and a distance detection element 1213. The adjustment unit 1211 includes a first moving component 1211a and a lifting component 1211b connected to the first moving component 1211a. The first moving component 1211a is used to drive the lifting component 1211b to move along the second direction F2. The back-burning gun 1212 is used to back-burn the back-burning component 10. Both the back-burning gun 1212 and the distance detection element 1213 are connected to the lifting component 1211b. The lifting component 1211b is used to drive the back-burning gun 1212 and the distance detection element 1213 to move along the third direction F3.

[0074] The adjustment unit 1211 is used to adjust the spatial position of components such as the back-burning gun 1212 in the back-burning mechanism 120. The first moving component 1211a is a component for outputting linear movement along the second direction F2, thereby adapting to the configuration where the longitudinal rib 12 extends along the second direction F2. The lifting component 1211b is a component for outputting linear movement along the third direction F3.

[0075] For example, with Figure 6 and Figure 7 For example, the first moving component 1211a includes a first body Z1, a first motor D1, a first gear C1, and a first rack T1. The first motor D1, the first gear C1, and the lifting component 1211b are mounted on the first body Z1. The first motor D1 can be a servo motor or a stepper motor. The output shaft of the first motor D1 is connected to the first gear C1 via a transmission connection. The first rack T1 is a fixed component, extending along the second direction F2 and mounted on the guide rail 101. The first rack T1 meshes with the first gear C1. When the first motor D1 drives the first gear C1 to rotate, the meshing action of the first gear C1 and the first rack T1 converts the rotational motion of the first motor D1 into the linear motion of the first body Z1, thereby driving the lifting component 1211b to move along the second direction F2. Of course, in some other embodiments, the first moving component 1211a can also be other components capable of outputting linear motion along the second direction F2, and no specific limitations are imposed here.

[0076] For example, with Figure 6 and Figure 7 For example, the lifting assembly 1211b includes a lifting cylinder 1201 and a mounting base 1202. One end of the lifting cylinder 1201 is mounted on the first moving assembly 1211a, and the other end of the lifting cylinder 1201 is provided with the mounting base 1202. The back-burning gun 1212 and the distance detection element 1213 are mounted on the mounting base 1202. The lifting cylinder 1201 is used to output linear motion along the third direction F3, thereby allowing the back-burning gun 1212 and the distance detection element 1213 to rise and fall along the third direction F3 under the drive of the mounting base 1202. Of course, in some other embodiments, the lifting assembly 1211b can also be other components capable of outputting linear motion along the third direction F3, and no specific limitation is made here.

[0077] The back-heating torch 1212 is a component used to eliminate residual stress. The back-heating torch 1212 precisely heats the back side of the welding area of ​​the longitudinal rib 12 by outputting a controllable high-temperature flame. The heating parameters of the back-heating torch 1212 include flame intensity, heating power, and flame temperature, which are not specifically limited here. The distance detection element 1213 is used to collect distance data between the back-heating mechanism 120 and the component 10 to be back-heated, providing a basis for precise heating.

[0078] Since both the distance detection element 1213 and the back-burning gun 1212 are connected to the lifting assembly 1211b, the distance detection element 1213 can simultaneously detect the real-time distance between itself and the back-burning element 10 during the movement of the back-burning gun 1212 along the third direction F3, and feed the data back to the controller.

[0079] Multiple visual inspection mechanisms 130 are arranged in a one-to-one correspondence with multiple back-burning mechanisms 120. The visual inspection mechanism 130 is located on the top side of the corresponding back-burning mechanism 120. The visual inspection mechanism 130 is used to detect information at the back-burning position of the back-burning component 10.

[0080] The visual inspection mechanism 130 is used to collect various feature information at the back-heating position of the component 10 to be back-heated, providing data support for the precise operation of the back-heating mechanism 120. This solves the problem of deviation and missed detection that is prone to occur in the traditional manual determination of the back-heating position, thereby improving the accuracy and consistency of the back-heating operation and thus improving the back-heating quality.

[0081] For example, the visual inspection mechanism 130 includes a visual imaging component, a data processing module, and a communication module. The visual imaging component can be a 3D visual inspection component. The imaging range of the visual imaging component can cover the welding area of ​​the longitudinal rib 12 and the surrounding area to be heated, reducing the detection blind zone caused by imaging range deviation. The data processing module can receive image data transmitted by the imaging component and, through a preset image algorithm, parse out key information about the back heat position from the image. The preset image algorithm can be, for example, feature extraction, contour recognition, coordinate calibration, etc., and is not specifically limited here. The communication module can transmit the processed valid data to the controller.

[0082] For example, the information at the back-heating location includes positional geometry information and surface condition information. Positional geometry information includes the actual location, contour range, length dimension, and relative reference coordinates of the welding area of ​​the longitudinal rib 12, which can be used to determine the area where the back-heating gun 1212 needs to operate. Surface condition information includes the welding deformation morphology and surface defects at the back-heating location, providing a basis for subsequent adjustments to the back-heating parameters. The welding deformation morphology includes protrusions, depressions, and warping degrees, while surface defects include weld beads, exposed slag inclusions, etc., which are not specifically limited here.

[0083] The controller is electrically connected to the conveying mechanism 110, the back-burning mechanism 120 and the vision inspection mechanism 130 respectively. The controller is used to control the adjustment unit 1211 to adjust the position of the back-burning gun 1212 and control the back-burning parameters of the back-burning gun 1212 according to the conveying status information of the conveying mechanism 110, the detection information of the distance detection element 1213 and the detection information of the vision inspection mechanism 130.

[0084] For example, the conveying status information of the conveying mechanism 110 includes the loading signal of the workpiece 10 to be back-burned, the back-burning station arrival signal, the positioning completion signal, and the unloading trigger signal. This type of information helps to synchronize the back-burning action with the workpiece flow rhythm. The detection information of the distance detection component 1213 can be used to characterize the distance data between the back-burning gun 1212 and the lower surface of the workpiece to be back-burned. This data directly reflects the deformation undulation state of the lower surface of the workpiece to be back-burned and is the basis for dynamically adjusting the height of the back-burning gun 1212 or the back-burning parameters.

[0085] It should be noted that, for the slight surface deformation of the back-burning part 10 caused by welding and incoming materials, the distance detection part 1213 can continuously output a distance signal. The controller can adjust the position of the adjustment unit 1211 and the heating parameters of the back-burning gun 1212 accordingly, so that the heat radiation range of the gun head flame remains constant, which is conducive to improving the consistency of back-burning quality in different areas.

[0086] Based on the information illustrated above, the controller can control the adjustment unit 1211 to adjust the position of the back-heating torch 1212 and control the back-heating parameters of the back-heating torch 1212. Controlling the position of the back-heating torch 1212 ensures that it remains aligned with the welding area and maintains the required distance from the lower surface of the workpiece to be back-heated. The back-heating parameters include the flame intensity, heating time, and heating rate of the back-heating torch 1212. For example, the flame intensity can be increased for protruding parts of the welding area and reduced for recessed parts, thereby ensuring consistent back-heating effects at different locations.

[0087] Therefore, the back-heating device 100 includes at least a conveying mechanism 110, a back-heating mechanism 120, a vision inspection mechanism 130, and a controller. The conveying mechanism 110 transports the component 10 to be back-heated to the desired position, and the back-heating mechanism 120 adjusts the position of the back-heating gun 1212 via its adjustment unit 1211 and distance detection device 1213, thereby achieving the transport and back-heating of the component 10 and improving back-heating efficiency. During this process, the controller controls the adjustment unit 1211 to adjust the position of the back-heating gun 1212 and control its back-heating parameters based on the conveying status information of the conveying mechanism 110, the detection information of the distance detection device 1213, and the detection information of the vision inspection mechanism 130, thereby improving the back-heating quality. Therefore, the back-heating device 100 provided in this application embodiment, through the cooperation of its components, can improve both back-heating efficiency and back-heating quality.

[0088] Based on some embodiments of this application, please continue to refer to Figure 6 and Figure 7The adjustment unit 1211 also includes a second moving component 1211c. The second moving component 1211c is disposed on the lifting component 1211b. The second moving component 1211c connects the back-burning gun 1212 and the distance detection element 1213. The second moving component 1211c is used to drive the back-burning gun 1212 and the distance detection element 1213 to move along the first direction F1.

[0089] For example, with Figure 6 and Figure 7 For example, the second moving component 1211c includes a second body Z2, a second motor D2, a second gear C2, and a second rack T1. The second motor D2 and the second gear C2 are mounted on the lifting component 1211b. The second motor D2 can be a servo motor or a stepper motor. The output shaft of the second motor D2 is connected to the second gear C2. The second rack T1 is mounted on the second body Z2 and extends along the first direction F1. The second rack T1 meshes with the second gear C2. A back-burning gun 1212 and a distance detection element 1213 are mounted on the second body Z2. When the second motor D2 drives the second gear C2 to rotate, the meshing action of the second gear C2 and the second rack T1 converts the rotational motion of the second motor D2 into the linear motion of the second body Z2, thereby driving the back-burning gun 1212 and the distance detection element 1213 to move along the first direction F1. Of course, in some other embodiments, the second moving component 1211c can also be other components capable of outputting linear motion along the first direction F1, and no specific limitations are made here.

[0090] Thus, by setting the second moving component 1211c, the back-burning gun 1212 and the distance detection component 1213 can move synchronously in the first direction F1, thereby enabling the back-burning gun 1212 to be further aligned with the weld of the longitudinal rib 12, achieving fine-tuning in the second direction F2, which further helps to improve the back-burning quality.

[0091] Based on some embodiments of this application, please continue to refer to Figure 6 and Figure 7 The back-burning device 100 also includes a floating connector 140, and both the back-burning gun 1212 and the distance detection element 1213 are connected to the lifting assembly 1211b via the floating connector 140.

[0092] The floating joint 140 can be a cylinder floating joint. For example, with... Figure 6 and Figure 7 For example, when the adjustment unit 1211 includes a second moving component 1211c, the second moving component 1211c is connected to the lifting component 1211b via a floating connector 140, and both the backfire gun 1212 and the distance detection element 1213 are located in the second moving component 1211c.

[0093] Thus, by setting up a floating joint 140, radial and axial deviations during installation and operation can be compensated, thereby reducing the risk of component jamming or damage caused by rigid connections.

[0094] Based on some embodiments of this application, please continue to refer to Figure 6 and Figure 7 The back-burning mechanism 120 also includes a rolling element 1214. The back-burning gun 1212, the distance detection element 1213, and the rolling element 1214 are all connected to the lifting assembly 1211b. The rolling element 1214 is positioned further away from the lifting assembly 1211b than the back-burning gun 1212.

[0095] For example, with Figure 6 and Figure 7 For example, in Figure 6 For the sake of clarity in showing the back-burning gun 1212, the rolling element 1214 is not shown. (Refer to the reference...) Figure 7 The rolling element 1214 is rotatably disposed on the second main body Z2 of the second moving assembly 1211c. The rolling element 1214 is disposed further away from the lifting assembly 1211b than the back burner 1212, that is, in the third direction F3, the rolling element 1214 is disposed higher than the back burner 1212.

[0096] For example, on the third-party F3, the top of the roller 1214 is 15mm to 30mm higher than the top of the backburner 1212. For example, this value can be 15mm, 17mm, 20mm, 22mm, 26mm, 28mm, 29mm or 30mm, and there is no specific limitation here.

[0097] Thus, by setting the rolling element 1214 and making the rolling element 1214 further away from the lifting assembly 1211b than the back-burning gun 1212, the rolling element 1214 contacts the back-burning part 10 first, forming mechanical protection for the back-burning gun 1212, thereby reducing the risk of damage to the back-burning gun 1212 caused by operational deviations or deformation or unevenness of the lower surface of the back-burning part 10.

[0098] According to some embodiments of this application, please refer to Figure 8 , Figure 8 This is a schematic diagram of a portion of the structure of the back-heating device 100 in some embodiments of this application from one perspective. The back-heating mechanism 120 also includes a temperature detection element 150. The temperature detection element 150 is connected to the back-heating gun 1212, and the controller is also electrically connected to the temperature detection element 150. The controller is also used to adjust the back-heating parameters according to the detection information of the temperature detection element 150.

[0099] Temperature sensing element 150 is a component for real-time monitoring of the heating temperature of the back-heating mechanism 120. For example, with... Figure 9 For example, and in conjunction with reference Figure 6 and Figure 7 The temperature sensing element 150 is connected to the backburner 1212 via the second body Z2 of the second moving assembly 1211c. Exemplarily, the temperature sensing element 150 can be a thermocouple sensor, an infrared temperature sensor, etc., without specific limitations.

[0100] Thus, on the one hand, during the back-heating process, the temperature detection element 150 continuously collects the real-time heating temperature of the back-heating position of the longitudinal rib 12 and transmits the temperature electrical signal to the controller in real time. The temperature detection element 150 can monitor the temperature generated during the back-heating process, reducing the risk of insufficient or excessive heating caused by factors such as thickness differences and surface deformation of the component 10 to be back-heated. On the other hand, after receiving the real-time temperature data from the temperature detection element 150, the controller combines the preset back-heating process temperature threshold range with the distance data fed back by the distance detection element 1213 and the surface state information fed back by the vision inspection mechanism 130 to perform calculations and analysis, and outputs targeted parameter adjustment instructions. The preset back-heating process temperature threshold range can be, for example, the optimal stress relief temperature corresponding to longitudinal ribs 12 made of different materials.

[0101] It should be noted that in some feasible methods, if the detected temperature is below the aforementioned lower threshold, it is determined to be insufficient heating. The controller will instruct the flame intensity of the back-heating gun 1212 to increase, or extend the heating time of the area, thereby allowing residual stress to be fully released. If the detected temperature is above the aforementioned upper threshold, it is determined to be overheating. The controller will instruct the flame intensity to decrease, or drive the adjustment unit 1211 to appropriately increase the distance between the back-heating gun 1212 and the steel plate, reducing secondary deformation of the back-heated part 10 caused by excessive temperature. If the detected temperature is within the aforementioned threshold range, the current back-heating parameters are maintained, which helps to improve the consistency of the heating effect.

[0102] Based on some embodiments of this application, please continue to refer to Figure 3 , Figure 6 and Figure 7 The adjustment unit 1211, the back-burning gun 1212 and the distance detection element 1213 constitute the back-burning assembly 121, and the back-burning mechanism 120 includes a plurality of back-burning assemblies 121 arranged along the second direction F2.

[0103] For example, with Figure 3 For example, the back-heating mechanism 120 is illustrated to include two back-heating components 121 arranged along the second direction F2. Of course, the back-heating mechanism 120 may also include three, four, or six other numbers of back-heating components 121, and no specific limitation is made here.

[0104] This allows for a more reasonable and even distribution of the correction time for the longitudinal bone 12, reducing the risk of ineffective correction due to uneven correction time.

[0105] Based on some embodiments of this application, please continue to refer to Figure 3 , Figure 4 and Figure 8 and in conjunction with reference Figure 9 , Figure 9 This is a side view of the back-heating device 100 in some embodiments of this application from another perspective. The back-heating device 100 also includes multiple driving mechanisms 160. The multiple driving mechanisms 160 and multiple vision detection mechanisms 130 are arranged in a one-to-one correspondence. The driving mechanism 160 is connected to the corresponding vision detection mechanism 130, and the driving mechanism 160 is used to drive the vision detection mechanism 130 to move along the second direction F2. Wherein, in Figure 3 To facilitate the illustration of other components of the back-burning device 100, the drive mechanism 160 is shown in dashed lines.

[0106] For example, the drive mechanism 160 is a gantry drive component, which includes a gantry frame and a vision inspection mechanism 130 mounted on the crossbeam of the gantry frame.

[0107] Thus, by setting the drive mechanism 160, the visual inspection mechanism 130 can be driven to move along the second direction F2, thereby not only recognizing the corrected flatness, but also making the setting of the visual inspection mechanism 130 more flexible.

[0108] Based on some embodiments of this application, please continue to refer to Figure 7 The adjustment unit 1211 also includes a guide member 122. One of the first moving component 1211a and the lifting component 1211b is provided with the guide member 122, and the other of the first moving component 1211a and the lifting component 1211b is provided with a guide hole. The guide member 122 is movably inserted through the guide hole in the third direction F3.

[0109] For example, guide 122 can be configured as a guide rod.

[0110] Thus, by setting the guide component 122, the stability of the lifting process is improved, which in turn helps to control the positional accuracy of the backfire gun 1212.

[0111] It should be noted that in some other embodiments of this application, in conjunction with reference to... Figure 8 The back-burning device 100 may further include a positioning detection element 1101 electrically connected to the controller, which is used to detect whether the back-burning component 10 is in position. For example, the positioning detection element 1101 may be a laser beam sensor. Thus, the positioning detection element 1101 can cooperate with the conveying mechanism 110 to convey the back-burning component 10.

[0112] In other embodiments of this application, reference is made to Figure 3 and Figure 5The back-burning device 100 may further include a support platform 1102, which may be disposed between the conveying mechanisms 110 to assist in supporting the back-burning component 10. For example, a rotating roller may be provided on the support platform 1102.

[0113] In other embodiments of this application, reference is made to Figure 8 The back-burning device 100 also includes a protective element 170. The protective element 170 is disposed between two adjacent conveying mechanisms 110 along the first direction F1. The protective element 170 can be used to protect the corresponding cables and pipes, thereby improving the overall safety and reliability.

[0114] According to some embodiments of this application, please refer to Figure 10 , Figure 10 The diagram below illustrates the back-heating method in some embodiments of this application. This application also provides a back-heating method, which is applied to the back-heating device in any of the above embodiments. The back-heating method includes:

[0115] Step S110: The component to be back-burned is conveyed along the first direction by the conveying mechanism so that the back-burning gun is aligned with the longitudinal weld seam of the component to be back-burned.

[0116] Step S120: Control the lifting assembly to move along a third direction, causing the back-burning gun and the distance detection component to synchronously approach the back-burning component; when the distance detected by the distance detection component is within a preset range, control the lifting assembly to stop moving.

[0117] Step S130: Based on the detection information from the visual inspection mechanism, generate back-burning parameters; control the back-burning gun to back-burn the part to be back-burned according to the back-burning parameters;

[0118] Step S140: After the back heat is completed, the flatness of the part to be back heated is detected by a visual inspection mechanism; if the flatness does not meet the preset standard, the back heat parameters are adjusted based on the flatness and the back heat is re-heated, and the process of adjusting the back heat parameters and back heat is repeated until the flatness meets the preset standard.

[0119] Thus, the component to be back-burned is transported to the required position via a conveying mechanism, and the position of the back-burning gun is adjusted by the adjustment unit and distance detection device of the back-burning mechanism, thereby realizing the transport and back-burning of the component and improving the back-burning efficiency. During this process, based on the transport status information of the conveying mechanism, the detection information of the distance detection device, and the detection information of the vision inspection mechanism, the adjustment unit is controlled to adjust the position of the back-burning gun and control the back-burning parameters of the back-burning gun, thereby improving the back-burning quality. Therefore, the back-burning method provided in this application embodiment can improve both back-burning efficiency and back-burning quality.

[0120] According to some embodiments of this application, please refer to Figure 11 , Figure 11 This is a flowchart illustrating step S110 of the back-heating method in some embodiments of this application. The back-heating gun is aligned with the longitudinal weld seam by conveying the component to be back-heated along a first direction via a conveying mechanism (i.e., step S110), including:

[0121] Step S111: During the process of conveying the component to be burned along the first direction through the conveying mechanism, the position of the component to be burned is detected by the positioning detection component;

[0122] Step S112: When the edge of the component to be burned reaches the detection area of ​​the positioning detection component, trigger the stop calculation to obtain the delay stop time of the conveying mechanism.

[0123] Step S113: Control the conveying mechanism to continue conveying. When the delay stop time is reached, control the conveying mechanism to stop running so that the back burner is aligned with the longitudinal weld seam.

[0124] In this way, the alignment process can be automated through the cooperation of the conveying mechanism and the positioning detection component, which in turn helps to improve the back-burning efficiency and back-burning quality.

[0125] Based on some embodiments of this application, please continue to refer to Figure 11 The process includes conveying the component to be back-burned along a first direction via a conveying mechanism to align the back-burning torch with the longitudinal weld seam, and also includes:

[0126] Step S114: The second moving component of the control adjustment unit moves along the first direction to further align the back burner with the longitudinal weld seam; the back burner and the distance detection component are connected to the lifting component through the second moving component.

[0127] Thus, by setting a second moving component, the back-burning gun and the distance detection component can move synchronously in the first direction, thereby enabling the back-burning gun to be further aligned with the longitudinal weld seam, achieving fine-tuning in the second direction, and further improving the back-burning quality.

[0128] According to some embodiments of this application, please refer to Figure 12 Trigger stop calculation to obtain the delayed stop duration of the conveyor mechanism (i.e., step S112), including:

[0129] Step S1121: Based on the distance between the longitudinal rib of the part to be heated and the edge of the part to be heated, calculate the remaining travel distance of the part to be heated from the current position to the target stopping point. The target stopping point is the preset position where the back heating gun and the weld of the longitudinal rib are initially aligned.

[0130] Step S1122: Determine the target conveying speed of the conveying mechanism based on the longitudinal rib length of the component to be back-burned and the preset back-burning efficiency.

[0131] Step S1123: Calculate the basic delay time based on the remaining travel and the target conveying speed; add the basic delay time to the inertia compensation time caused by the conveying roller to obtain the delay stop time.

[0132] Thus, determining the delay stop time of the conveying mechanism based on the longitudinal rib length of the part to be heated, the preset heating efficiency, the target conveying speed, and the inertial compensation time caused by the conveying rollers is beneficial to improving the conveying accuracy, which in turn is beneficial to improving the heating quality.

[0133] According to some embodiments of this application, backburn parameters are generated based on the detection information from a visual inspection agency, including:

[0134] Step SH1: Based on the features detected by the visual inspection agency, construct the feature vector of the component to be back-burned; the features include the plate thickness and aggregate type of the component to be back-burned.

[0135] Step SH2: Based on the feature vector, retrieve the matching standard back-heating parameters in the back-heating parameter database; correct the standard back-heating parameters based on the current process correction coefficient to obtain the intermediate back-heating parameters;

[0136] Step SH3: For the historical successful operation records in the back-burning parameter database, based on the similarity between the feature vector of the part to be back-burned and the feature vector of the part to be back-burned in the historical successful operation records, filter out the historical successful operation records that match the current working condition, and obtain the corresponding historical process correction coefficients.

[0137] Step SH4: Correct the intermediate back-burning parameters based on the historical process correction factor to obtain the back-burning parameters.

[0138] In step SH1, the plate thickness directly determines the energy requirement for back-heating. Thicker plates require higher flame intensity and longer heating time, while thinner plates require lower power to reduce the risk of overheating. Different types of longitudinal ribs have different cross-sectional structures and welding stress distributions, and the corresponding back-heating parameters need to be adjusted accordingly. The cross-sectional structure of the longitudinal ribs can be bulb flat steel, angle steel, etc., without specific restrictions. The plate thickness and rib type are quantized and encoded according to preset rules to construct a feature vector of the part to be back-heated, which serves as the matching basis for subsequent parameter retrieval.

[0139] In step SH2, a preset back-heating parameter database is retrieved. This database stores standard back-heating parameters corresponding to different combinations of plate thickness and aggregate type. Standard back-heating parameters include, for example, the flame intensity baseline value, heating rate, and the reference spacing between the torch and the workpiece to be back-heated. Based on the feature vector constructed in step SH1, the standard back-heating parameters that best match the current workpiece are selected. By setting the current process correction coefficient, factors influencing real-time operating conditions can be comprehensively considered, such as ambient temperature, surface cleanliness of the workpiece, and estimated level of welding residual stress. Using a preset correction algorithm, the standard back-heating parameters are adjusted with the current process correction coefficient to obtain intermediate back-heating parameters, initially adapting to real-time production conditions.

[0140] In step SH3, the back-heating parameter database synchronously stores historical successful operation records. Each record includes the feature vector of the part to be back-heated, the process correction coefficients used, and the final back-heating effect verification data. Back-heating effect verification data can be, for example, stress relief rate, workpiece deformation, etc. The similarity between the current feature vector of the part to be back-heated and the feature vectors in the historical successful operation records is calculated using an algorithm. Several historical records with the highest similarity are selected, and their corresponding historical process correction coefficients are extracted. The similarity of the feature vectors can be, for example, cosine similarity, Euclidean distance, etc., without specific limitations. In this way, effective correction experience verified by actual production is introduced, reducing the deviation between theoretical parameters and actual operation, thereby further improving the back-heating quality.

[0141] In step SH4, the intermediate back-heating parameters are used as a basis and then further refined using historical process correction factors to obtain the optimal back-heating parameters. These optimal back-heating parameters integrate theoretical standard parameters, real-time operating conditions, and historical verification experience, thus better improving back-heating quality.

[0142] Thus, by determining the back heat parameters as described above, not only can the accuracy of the parameters and the stability of the back heat quality be improved, but it can also be adapted to various specifications of longitudinal bone back heats. In addition, by accumulating and reusing historical successful operation records, the accuracy of the back heat parameters can be continuously improved.

[0143] According to some embodiments of this application, the intermediate back-burning parameters are corrected based on historical process correction factors to obtain the back-burning parameters, including:

[0144] Step SG1: When there are multiple historical successful operation records that match the current working condition, the intermediate back-burning parameters are corrected based on the historical process correction coefficient used for each corresponding one to obtain multiple sets of candidate back-burning parameters; among them, the historical successful operation records that match the current working condition correspond to historical correction residuals and unit deformation energy consumption.

[0145] Step SG2: Remove candidate back-burning parameters from multiple sets of candidate back-burning parameters whose historical correction residuals exceed the tolerance threshold. If at least two sets of candidate back-burning parameters remain, sort the remaining multiple sets of candidate back-burning parameters according to the energy consumption per unit deformation, and filter them according to the sorting results to obtain the back-burning parameters.

[0146] In step SG1, using the intermediate back-burning parameters as a benchmark, each historical record is corrected using the historical process correction coefficient, generating multiple sets of candidate back-burning parameters corresponding to the number of historical records. The historical correction residual refers to the measured data of the residual deformation or residual stress value of the workpiece after the back-burning operation corresponding to that historical record is completed; it is a parameter characterizing whether the back-burning quality meets the standards. The unit deformation energy consumption refers to the energy consumed in eliminating a unit of residual deformation in that historical record; it is a parameter characterizing the economic efficiency of the back-burning operation.

[0147] In step SG2, a historical correction residual tolerance threshold is set, and the historical correction residuals corresponding to each group of candidate parameters are compared one by one. Candidate parameters whose residuals exceed the threshold are eliminated, and only the parameter groups whose back-burning quality meets the standard are retained. If at least two groups of candidate parameters remain after screening, the remaining parameter groups are sorted in ascending order by unit deformation energy consumption, and the group with the lowest energy consumption is selected as the final back-burning parameter. Of course, in some other embodiments, a sorting weight can also be preset to balance energy consumption and operation efficiency.

[0148] Thus, by correcting the intermediate back-burning parameters based on the historical process correction coefficient, the method of obtaining back-burning parameters not only helps to improve back-burning quality, reduce process risks, and take into account production costs, but also helps to adapt to changes in operating conditions and improve the rationality of obtaining back-burning parameters.

[0149] According to some embodiments of this application, controlling the back-heating gun to back-heat the component to be back-heated according to back-heating parameters includes:

[0150] The temperature generated during the back-heating process is monitored by a temperature sensor; the back-heating parameters are adjusted according to the temperature to maintain the temperature generated during the back-heating process within a preset range; when the temperature is below the preset threshold, the moving speed of the back-heating gun is reduced or the gas output is increased; when the temperature reaches the material phase transition red line, the moving speed of the back-heating gun is increased or the distance between the back-heating gun and the part to be back-heated is increased.

[0151] This can be understood in conjunction with the advantages of the temperature sensing element illustrated above, and will not be elaborated further. This helps improve the consistency of heating effects, thereby enhancing the quality of the back heating.

[0152] According to some embodiments of this application, before generating backburn parameters based on the detection information from a visual inspection agency, the method further includes:

[0153] The spacing between two adjacent back-heating components along the second direction is controlled according to the longitudinal rib length of the component to be heated; the back-heating mechanism includes multiple sets of adjustment units, back-heating guns and distance detection components, and each set of adjustment units, back-heating guns and distance detection components constitutes a back-heating component.

[0154] This allows for a more reasonable and even distribution of the correction time for the longitudinal bones, reducing the risk of ineffective correction due to uneven correction time.

[0155] According to some embodiments of this application, the back-burning method further includes:

[0156] After the back-burning is completed, record the input features, actual back-burning parameters, correction residuals and energy consumption data of this back-burning, and store them in the historical database; the input features include workpiece features and job-related features;

[0157] Based on data from the historical database, a nonlinear regression model is constructed with workpiece characteristics as the input variable and the ratio between the historical optimal parameters and the theoretical benchmark parameters as the output target. Based on the nonlinear regression model, the process correction coefficient is dynamically updated to achieve self-learning optimization of the back-burning parameters.

[0158] The methods involved in the embodiments of this application are illustrated below with reference to the above-described embodiments, but are not intended to be limiting.

[0159] For example, the backburning method includes the following steps:

[0160] Step S1: Initialize process parameters based on multi-dimensional features. Specifically, the geometric features and deformation state of the longitudinal ribs of the part to be back-burned are obtained through a visual inspection mechanism or manual scanning. A preset back-burning parameter database is called. Basic back-burning parameters are retrieved based on plate thickness and material, and an initial set of process parameters is generated by combining them with the current deformation. The preset back-burning parameter database adopts a "rule-instance" hybrid mapping structure.

[0161] Step S2: Real-time closed-loop control based on temperature monitoring. Specifically, during the back-heating operation, the temperature generated during the back-heating process is monitored by a temperature detection device; the back-heating parameters are adjusted according to the temperature to maintain the temperature generated during the back-heating process within a preset range; specifically, if the temperature is below a preset threshold, the moving speed of the back-heating gun is reduced or the gas output is increased; if the temperature reaches the material phase transition threshold, the moving speed of the back-heating gun is increased or the distance between the back-heating gun and the workpiece to be back-heated is increased. An adaptive fuzzy controller can be introduced for this control.

[0162] Step S3: Back-heating quality assessment. Specifically, after the entire back-heating process is completed, the same location is re-tested by a visual inspection agency to obtain parameters such as the calculated correction residual / deformation amount and system energy consumption, and the quality assessment results are recorded. A complete post-cleaning data record is generated: {Input features; Actual process parameters executed, correction residual / deformation amount, energy consumption}, and stored in the historical database.

[0163] Step S4: Model self-learning based on regression analysis. Specifically, using accumulated historical operation data, with workpiece characteristics (such as plate thickness, material, and deformation) as input variables, and the ratio of historically optimal parameters to theoretical baseline parameters (i.e., historical process correction coefficients) as the output target, a nonlinear regression model is constructed. As the number of operations increases, the system's parameter recommendations will tend towards the optimal solution, becoming more accurate with use.

[0164] Thus, through a closed loop of matching, real-time feedback, fine-tuning, and parameter library updates, the backlighting quality is improved. The specific processes involved in step S1 above can be understood by referring to the scenarios illustrated in some of the foregoing embodiments, and will not be repeated here.

[0165] It should be noted that, in some embodiments, the intermediate backburning parameters involved in this application are reference values ​​obtained by dynamically calibrating static industry standard parameters based on global process correction coefficients predicted by a Gaussian process regression model after long-term training with example data. Setting these intermediate backburning parameters can eliminate long-term systematic errors caused by factors such as equipment aging and material batch characteristics, establishing a physically accurate benchmark that fits the current production environment.

[0166] Therefore, since the selection of back-heating parameters affects the quality and energy consumption of back-heating, a structured parameter library, real-time temperature feedback, online fine-tuning controller, and offline optimization back-heating parameter optimization closed-loop system are established through the back-heating devices and methods illustrated in the above embodiments. This makes the back-heating process parameters automated, traceable, and optimizable. Under the closed-loop of temperature sensing and control, automatic fine-tuning of speed, air output, gun distance, etc., is beneficial for obtaining the target temperature curve and minimizing energy consumption and deformation risks.

[0167] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0168] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A back-heating device, characterized in that, include: Multiple conveying mechanisms and multiple back-burning mechanisms are arranged alternately along a first direction. Each conveying mechanism conveys a component to be back-burned along the first direction. Each back-burning mechanism includes an adjustment unit, a back-burning gun, and a distance detection component. The adjustment unit includes a first moving component and a lifting component connected to the first moving component. The first moving component drives the lifting component to move along a second direction. The back-burning gun back-burns the component. Both the back-burning gun and the distance detection component are connected to the lifting component. The lifting component drives the back-burning gun and the distance detection component to move along a third direction. The first direction, the second direction, and the third direction are perpendicular to each other. Multiple visual inspection mechanisms are provided, one-to-one with the multiple back-burning mechanisms. The visual inspection mechanism is located on the top side of the corresponding back-burning mechanism. The visual inspection mechanism is used to detect information at the back-burning position of the component to be back-burned. and The controller is electrically connected to the conveying mechanism, the back-burning mechanism, and the vision inspection mechanism, respectively. The controller is used to control the adjustment unit to adjust the position of the back-burning gun and control the back-burning parameters of the back-burning gun according to the conveying status information of the conveying mechanism, the detection information of the distance detection element, and the detection information of the vision inspection mechanism.

2. The back-burning device according to claim 1, characterized in that, The adjustment unit further includes a second moving component; The second moving component is disposed on the lifting component, and the second moving component connects the back-burning gun and the distance detection component. The second moving component is used to drive the back-burning gun and the distance detection component to move along the first direction.

3. The back-burning device according to claim 1, characterized in that, The back-burning device also includes a floating connector, and both the back-burning gun and the distance detection element are connected to the lifting assembly through the floating connector.

4. The back-burning device according to any one of claims 1-3, characterized in that, The back-burning mechanism further includes a rolling element; the back-burning gun, the distance detection element, and the rolling element are all connected to the lifting assembly; the rolling element is positioned further away from the lifting assembly than the back-burning gun; and / or The back-heating mechanism further includes a temperature sensing element; the temperature sensing element is connected to the back-heating gun, and the controller is also electrically connected to the temperature sensing element. The controller is further configured to adjust the back-heating parameters based on the detection information from the temperature sensing element; and / or The adjustment unit, the back-heating gun, and the distance detection element constitute a back-heating assembly; the back-heating mechanism includes a plurality of the back-heating assemblies arranged along the second direction; and / or The back-burning device also includes multiple driving mechanisms; the multiple driving mechanisms and the multiple visual detection mechanisms are arranged in a one-to-one correspondence, the driving mechanism is connected to the corresponding visual detection mechanism, and the driving mechanism is used to drive the visual detection mechanism to move along the second direction; and / or The adjustment unit further includes a guide member; one of the first moving component and the lifting component is provided with the guide member, and the other of the first moving component and the lifting component is provided with a guide hole, and the guide member is movably inserted through the guide hole along the third direction.

5. A method for burning the back of the head, characterized in that, The back-heating method is applied to the back-heating device as described in any one of claims 1-4; the back-heating method includes: The back-burning gun is aligned with the longitudinal weld seam of the back-burning component by conveying the component along the first direction through the conveying mechanism. The lifting assembly is controlled to move along a third direction, causing the back-burning gun and the distance detection device to move closer to the back-burning object simultaneously; when the distance detected by the distance detection device is within a preset range, the lifting assembly is controlled to stop moving. Based on the detection information from the visual inspection agency, back-burning parameters are generated; the back-burning gun is controlled to perform back-burning on the part to be back-burned according to the back-burning parameters. After the back heat treatment is completed, the flatness of the back heat treatment component is detected by the visual inspection mechanism. If the flatness does not meet the preset standard, the back heat treatment parameters are adjusted based on the flatness and the back heat treatment is repeated. The process of adjusting the back heat treatment parameters and the back heat treatment is repeated until the flatness meets the preset standard.

6. The back-burning method according to claim 5, characterized in that, The step of conveying the component to be back-burned along the first direction via a conveying mechanism to align the back-burning gun with the longitudinal weld seam includes: During the process of conveying the component to be burned along the first direction via the conveying mechanism, the position of the component to be burned is detected by the positioning detection component. When the position of the component to be burned indicates that the edge of the component to be burned has reached the detection area of ​​the positioning detection component, a stop calculation is triggered to obtain the delay stop duration of the conveying mechanism. The conveying mechanism is controlled to continue conveying. When the delay stop time is reached, the conveying mechanism is controlled to stop operating, so that the back burner is aligned with the longitudinal bone weld.

7. The back-burning method according to claim 6, characterized in that, The step of conveying the component to be back-burned along the first direction via a conveying mechanism to align the back-burning gun with the longitudinal weld seam further includes: The second moving component of the adjustment unit is controlled to move along the first direction to further align the back-burning torch with the longitudinal weld seam; the back-burning torch and the distance detection element are both connected to the lifting component through the second moving component. And / or, the trigger stop calculation to obtain the delayed stop duration of the conveying mechanism includes: Based on the distance between the longitudinal rib of the component to be heated and the edge of the component to be heated, calculate the remaining travel distance of the component from its current position to the target stopping point. The target stopping point is a preset position where the back-heating gun is initially aligned with the weld of the longitudinal rib. The target conveying speed of the conveying mechanism is determined based on the longitudinal rib length of the component to be heated and the preset heating efficiency. Based on the remaining travel and the target conveying speed, the basic delay time is calculated; the basic delay time is then added to the inertia compensation time caused by the conveying roller to obtain the delay stop time.

8. The back-burning method according to any one of claims 5-7, characterized in that, The generation of backburn parameters based on the detection information from the visual inspection mechanism includes: Based on the features detected by the visual inspection mechanism, a feature vector of the component to be back-burned is constructed; the features include the plate thickness and material type of the component to be back-burned. Based on the feature vector, a matching standard backheating parameter is retrieved from the backheating parameter database; the standard backheating parameter is then corrected based on the current process correction coefficient to obtain an intermediate backheating parameter. For the historical successful operation records in the back-burning parameter database, based on the similarity between the feature vector of the component to be back-burned and the feature vector of the component to be back-burned in the historical successful operation records, the historical successful operation records that match the current working condition are selected, and the corresponding historical process correction coefficients are obtained. The intermediate back-burning parameters are corrected based on the historical process correction coefficient to obtain the back-burning parameters.

9. The back-burning method according to claim 8, characterized in that, The step of correcting the intermediate backburning parameters based on the historical process correction coefficient to obtain the backburning parameters includes: When there are multiple historical successful operation records that match the current working condition, the intermediate back-burning parameters are corrected based on the historical process correction coefficient used for each corresponding one to obtain multiple sets of candidate back-burning parameters; among them, the historical successful operation records that match the current working condition correspond to historical correction residuals and unit deformation energy consumption. From the multiple sets of candidate back-burning parameters, candidate back-burning parameters whose historical correction residuals exceed the tolerance threshold are removed. If at least two sets of candidate back-burning parameters remain, the remaining multiple sets of candidate back-burning parameters are sorted according to the energy consumption per unit deformation, and the back-burning parameters are obtained by filtering according to the sorting results.

10. The back-burning method according to any one of claims 5-7, characterized in that, The control of the back-burning gun to back-burn the component according to the back-burning parameters includes: The temperature generated during the back-heating process is monitored by a temperature detection device; the back-heating parameters are adjusted according to the temperature to maintain the temperature generated during the back-heating process within a preset range; wherein, if the temperature is lower than a preset threshold, the moving speed of the back-heating gun is reduced or the gas output is increased; if the temperature reaches the material phase change red line, the moving speed of the back-heating gun is increased or the distance between the back-heating gun and the object to be back-heated is increased. And / or, before generating the backburn parameters based on the detection information from the visual inspection agency, the method further includes: The spacing between two adjacent back-heating components along the second direction is controlled according to the longitudinal bone length of the component to be heated; the back-heating mechanism includes multiple sets of adjustment units, a back-heating gun and a distance detection device, and each set of the adjustment unit, the back-heating gun and the distance detection device constitutes the back-heating component.

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