Welding deformation control method and system
By quantifying the adjustable range of welded components and using heating and rapid cooling modules for automated adjustment, the consistency problem in welding deformation control is solved, and the accuracy and stability of welded components are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CRRC QINGDAO SIFANG CO LTD
- Filing Date
- 2026-01-05
- Publication Date
- 2026-05-15
AI Technical Summary
During the welding process, thermal stress and residual stress in non-rigid structural components cause welding deformation, affecting product assembly accuracy and overall machine operation safety. Existing adjustment and repair methods rely on manual experience, resulting in inconsistent and poor results.
By acquiring standard design information and post-weld surface information of welded components, a point cloud model is generated using 3D scanning equipment, the out-of-tolerance adjustable area is quantified, and adjustments are made using heating and rapid cooling execution modules. Combined with data processing terminals, adjustment parameters are generated to achieve automated control.
It improves the consistency and accuracy of the adjustment results of welded structural components, reduces reliance on manual experience, and ensures the geometric accuracy and stability of welded components.
Smart Images
Figure CN122033501A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of welding technology, and in particular to a method and system for controlling welding deformation. Background Technology
[0002] Welded structural components commonly suffer from welding deformation due to heat input during manufacturing, especially non-rigid components such as locomotive and rolling stock bogie frames, aerospace structural components, and large frame-type assemblies. Thermal stress and residual stress during welding often lead to a decrease in the geometric accuracy of the components. If post-weld deformation is not effectively controlled, it will directly affect the assembly accuracy of the product and may even cause structural fatigue, stress concentration, and other problems, severely impacting the operational safety and stability of the entire machine.
[0003] To control the deformation of welded structural components after welding, current methods rely on manual operations such as flame heating, mechanical straightening, or a combination of both. Adjustment parameters, such as adjustment position and heating temperature, mainly depend on the operator's experience and judgment, which can lead to inaccurate adjustments on the first attempt and subsequent reverse adjustments, resulting in poor consistency in the adjustment results of welded structural components. Summary of the Invention
[0004] This invention provides a welding deformation control method and system that can quantify the adjustment parameters of welded structural components and improve the consistency of the adjustment results of welded structural components.
[0005] This invention provides a method for controlling welding deformation, comprising: Obtain standard design information and post-weld surface information of welded components; The out-of-tolerance adjustable area of the welded component is determined by comparing the post-weld surface information with the standard design information; A maintenance execution device is determined to generate maintenance parameters for the adjustable area out of tolerance, and the maintenance execution device is controlled to perform maintenance on the adjustable area out of tolerance based on the maintenance parameters.
[0006] According to a welding deformation control method provided by the present invention, standard design information and post-weld surface information of welded components are obtained, including: Obtain the standard design model of the welded components; The post-weld surface information of the welded component is acquired using a 3D scanning device; The step of comparing the post-weld surface information with the standard design information to determine the out-of-tolerance adjustable area of the welded component includes: A post-weld point cloud model is generated based on the post-weld surface information of the welded component; The post-weld point cloud model of the welded component is compared with the standard design model to determine the adjustable area of deviation.
[0007] According to a welding deformation control method provided by the present invention, before determining the adjustable region of deviation by comparing the post-weld point cloud model of the welded component with the standard design model, the method further includes: The post-weld point cloud model of the welded component is matched and aligned with the standard design model based on the structural characteristics of the welded component.
[0008] According to a welding deformation control method provided by the present invention, the step of determining the adjustable region of deviation by comparing the post-weld point cloud model of the welded component with the standard design model includes: A point cloud deviation map of the welded component is generated by comparing the post-weld point cloud model of the welded component with the standard design model. The adjustable region for exceeding the tolerance is determined based on the point cloud deviation map.
[0009] According to a welding deformation control method provided by the present invention, the step of determining the adjustable region of deviation based on the point cloud deviation map includes: Generate the tolerance envelope based on the upper and lower tolerance limits of the standard design model; The adjustable region of out-of-tolerance is determined by identifying the point cloud deviation map using the tolerance envelope.
[0010] According to a welding deformation control method provided by the present invention, the adjustment execution device includes a heating execution module and a rapid cooling execution module; The step of controlling the adjustment execution device to adjust the out-of-tolerance adjustable area according to the adjustment parameters includes: The heating execution module is controlled to heat the adjustable area according to the adjustment parameters, and the rapid cooling execution module is controlled to follow the heating execution module to perform atomized spraying on the adjustable area according to the adjustment parameters.
[0011] According to a welding deformation control method provided by the present invention, after obtaining the standard design information and post-weld surface information of the welded component, the method further includes: The non-adjustable out-of-tolerance area of the welded component is determined by comparing the post-weld surface information with the standard design information. An early warning message is generated based on the unadjustable out-of-tolerance area and sent to the user.
[0012] According to a welding deformation control method provided by the present invention, after controlling the adjustment execution device to adjust the out-of-tolerance adjustable area according to the adjustment parameters, the method further includes: Obtain the surface information of the welded component after adjustment; The verification result is obtained by comparing the surface information after adjustment with the standard design information; the verification result is used to determine whether the welding deformation adjustment step of the welded component needs to be repeated.
[0013] The present invention also provides a welding deformation control system, comprising: A scanning device is used to collect post-weld surface information of components and send the post-weld surface information to the data processing terminal; A data processing terminal is used to acquire standard design information and post-weld surface information of welded components, compare the post-weld surface information with the standard design information to determine the out-of-tolerance adjustable area of the welded components, determine the adjustment execution device to generate adjustment parameters for adjusting the out-of-tolerance adjustable area, and send the adjustment parameters to the adjustment execution device. The adjustment execution device is used to receive adjustment parameters sent by the data processing terminal, so as to adjust the out-of-tolerance adjustable area according to the adjustment parameters.
[0014] According to a welding deformation control system provided by the present invention, the scanning device is further used to collect surface information of the component after adjustment and send the surface information after adjustment to the data processing terminal. The data processing terminal is also used to acquire the surface information of the welded component after adjustment; compare the surface information after adjustment with the standard design information to obtain a verification result; the verification result is used to determine whether to repeat the welding deformation adjustment step of the welded component.
[0015] The welding deformation control method and system provided by this invention obtains the standard design information and post-weld surface information of the welded component, compares the post-weld surface information with the standard design information to determine the out-of-tolerance adjustable area of the welded component, quantifies the deformation of the welded component, then determines the adjustment execution equipment, generates adjustment parameters for adjusting the out-of-tolerance adjustable area, and on this basis, controls the adjustment execution equipment to perform quantitative adjustment of the out-of-tolerance adjustable area, thereby improving the consistency of the adjustment results of the welded structural component. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a flowchart illustrating the welding deformation control method provided by the present invention.
[0018] Figure 2 This is a schematic diagram of the framework of the welding deformation control method provided by the present invention. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.
[0020] The technical solutions of the present invention will now be described with reference to the accompanying drawings in the embodiments of the present invention.
[0021] Figure 1 This is a flowchart illustrating the welding deformation control method provided by the present invention, as shown below. Figure 1 As shown, the method includes the following steps.
[0022] Step 101: Obtain the standard design information and post-weld surface information of the welded components.
[0023] Welded components, also known as welded parts, welded structural components, post-weld parts, or welded parts, refer to components formed by connecting them through welding processes. For example, a welded component can be formed by connecting two or more metal parts through methods such as fusion welding, pressure welding, or brazing.
[0024] Standard design information refers to data established during the design phase of welded components, used to describe parameters such as dimensions, shape, and tolerances of the welded components. It should be noted that there are many ways to obtain standard design information for welded components, such as through engineering drawings or three-dimensional models of the welded components; this embodiment of the invention does not limit this method.
[0025] Post-weld surface information refers to data obtained through measurement that describes parameters such as the actual dimensions and shape of the welded component. It should be noted that there are many ways to obtain post-weld surface information of a welded component, such as through 3D scanning or stereoscopic vision measurement. Specifically, point cloud data obtained through 3D scanning or height field data obtained through stereoscopic vision measurement are preferred, but this embodiment of the invention does not limit the specific methods used.
[0026] Step 102: Compare the post-weld surface information with the standard design information to determine the out-of-tolerance adjustable area of the welded component.
[0027] It should be noted that comparing the post-weld surface information with the standard design information can identify the out-of-tolerance areas of the welded component. Due to the structural characteristics, material limitations, and process constraints of the welded component, some out-of-tolerance areas can be corrected through adjustment, while others cannot. The out-of-tolerance areas that can be effectively corrected through adjustment are called adjustable out-of-tolerance areas, while the out-of-tolerance areas that cannot be effectively corrected through adjustment are called non-adjustable out-of-tolerance areas.
[0028] The welded component may include multiple deformable areas caused by welding, with different degrees of deformation in different areas. Out-of-tolerance areas refer to those whose deformation exceeds a set threshold range. For example, the degree of deformation in a deformable area can be measured by the difference between the local geometric deviation and the tolerance of the deformable area.
[0029] Step 103: Determine the adjustment execution device to generate adjustment parameters for adjusting the out-of-tolerance adjustable area, and control the adjustment execution device to adjust the out-of-tolerance adjustable area according to the adjustment parameters.
[0030] Among them, the adjustment and repair execution equipment refers to the equipment used in the post-weld deformation control process to perform deformation adjustment operations on the out-of-tolerance adjustable areas detected. Adjustment parameters are the parameters used to control the adjustment and repair execution equipment to perform deformation adjustment operations during the post-weld deformation control process.
[0031] It should be noted that accessibility analysis can be performed based on the actual size, shape, and other post-weld surface information of the adjustable area with out-of-tolerance, to determine the adjustment execution equipment. Then, based on the characteristics of the adjustment execution equipment and the information of the adjustable area with out-of-tolerance, adjustment parameters such as the working parameters of each adjustment execution equipment and the linkage execution sequence of multiple adjustment execution equipment to adjust the adjustable area with out-of-tolerance are generated.
[0032] The welding deformation control method provided in this invention obtains the standard design information and post-weld surface information of the welded component, compares the post-weld surface information with the standard design information to determine the out-of-tolerance adjustable area of the welded component, quantifies the deformation of the welded component, then determines the adjustment execution equipment, generates adjustment parameters for adjusting the out-of-tolerance adjustable area, and on this basis, controls the adjustment execution equipment to perform quantitative adjustment of the out-of-tolerance adjustable area, thereby improving the consistency of the adjustment results of the welded structural component.
[0033] It should be noted that before implementing the welding deformation control method provided in this embodiment of the invention, a welding deformation control system based on the concept of intelligent adaptive control can be constructed first, and deep integration of multiple hardware modules can be performed to provide a foundation for the execution of this method. For example, the welding deformation control system may include hardware such as a three-dimensional scanning device, an adjustment execution device, and a data processing terminal. The welding deformation control method provided in this embodiment of the invention can be applied to the data processing terminal of an intelligent hardware platform.
[0034] Based on the above embodiments, obtaining standard design information and post-weld surface information of welded components includes: obtaining a standard design model of the welded component; and collecting post-weld surface information of the welded component using a three-dimensional scanning device.
[0035] The standard design model refers to a standard geometric reference model established based on product design data. The 3D scanning equipment can be a 3D laser scanning device, or a 3D structured light scanner, etc.
[0036] It should be noted that the standard design model of the welded component sent by the user can be obtained, or the standard design model of the welded component can be automatically obtained from a specified location, etc., and the embodiments of the present invention are not limited in this regard. Non-contact measurement can be performed on the surface of the welded component using a three-dimensional laser scanning device. By acquiring dense point cloud data of the surface of the welded component through high-speed laser projection and reflection signal acquisition, the post-weld surface information of the welded component can be obtained.
[0037] In some embodiments, determining the out-of-tolerance adjustable area of the welded component by comparing the post-weld surface information with the standard design information includes: generating a post-weld point cloud model based on the post-weld surface information of the welded component; and determining the out-of-tolerance adjustable area by comparing the post-weld point cloud model of the welded component with the standard design model.
[0038] It should be noted that the post-weld surface information of the welded components obtained by scanning can be preprocessed and modeled to generate a post-weld point cloud model. This model can then be matched with the standard design model to determine the distance between each measurement point of the post-weld point cloud model and the standard design model, identify the deformation area of the post-weld point cloud model relative to the standard design model, and then determine the out-of-tolerance adjustable area in the deformation area.
[0039] The specific preprocessing and modeling methods can be determined according to the actual business scenario, and the embodiments of the present invention do not limit them.
[0040] It is understandable that by collecting post-weld surface information of welded components using 3D scanning equipment, high-density point cloud data of the welded component surface can be obtained to generate a post-weld point cloud model. By comparing the post-weld point cloud model with the standard design model, the out-of-tolerance adjustable area can be determined, enabling high-precision identification of post-weld deformation of welded components. This facilitates quantitative adjustment of welded components and improves the consistency and reliability of post-weld adjustment.
[0041] Based on any of the above embodiments, before determining the adjustable region of deviation by comparing the post-weld point cloud model of the welded component with the standard design model, the method further includes: matching and aligning the post-weld point cloud model of the welded component with the standard design model according to the structural characteristics of the welded component.
[0042] The structural features of welded components are geometric and functional elements used to describe their geometry, assembly references, and stress-bearing structural characteristics. These structural features may include weld distribution, stiffeners, locating holes, reference planes, and characteristic curved surfaces.
[0043] It should be noted that the structural features of the welded component can be used as a reference for positioning and alignment through a structural matching algorithm. The post-weld point cloud model of the welded component can be matched and aligned with the standard design model of the welded component in the same spatial coordinate system to achieve correct overlap.
[0044] Understandably, by using the structural features of the welded components to achieve matching and alignment between the post-weld point cloud model and the standard design model, the matching and alignment can be automatically completed even when the position or angle of the welded components in the production line deviates from the ideal position or angle. This eliminates the need for manual coordinate system setting, transforming post-weld deformation control from experience-based control to automated control, thereby improving the accuracy and efficiency of welding deformation control.
[0045] Based on any of the above embodiments, the step of determining the adjustable region of deviation by comparing the post-weld point cloud model of the welded component with the standard design model includes: generating a point cloud deviation map of the welded component by comparing the post-weld point cloud model of the welded component with the standard design model; and determining the adjustable region of deviation based on the point cloud deviation map.
[0046] Among them, the point cloud deviation map refers to the visualized error distribution obtained by calculating the three-dimensional distance deviation between corresponding points or local areas of the post-weld point cloud model and the standard design model.
[0047] It should be noted that by spatially matching the post-weld point cloud model with the standard design model, the deviation distance between corresponding points or local areas of the two can be calculated and determined. The deviation distance is then mapped to a color gradient to obtain a point cloud deviation map that visually reflects the deformation characteristics of the welded component surface. Threshold judgment is performed on the deviation distance of each measuring point in the point cloud deviation map to determine the adjustable area of the deviation. The adjustable area and the non-adjustable area of the deviation can be marked accordingly.
[0048] It is understandable that by generating a point cloud deviation map by registering the post-weld point cloud model with the standard design model based on structural features, this invention can simultaneously reflect the deviation of the post-weld component point by point in a three-dimensional visualization and numerical form and determine the out-of-tolerance adjustable area, further improving the accuracy of welding deformation control and providing a basis for the subsequent automated generation of adjustment parameters for the out-of-tolerance adjustable area.
[0049] Based on any of the above embodiments, determining the adjustable region of excess tolerance according to the point cloud deviation map includes: generating a tolerance envelope based on the upper and lower tolerance limits of the standard design model; and using the tolerance envelope to identify and determine the adjustable region of excess tolerance from the point cloud deviation map.
[0050] The tolerance envelope, also known as the tolerance zone, refers to the envelope region generated on the surface of the standard design model of the welded component based on its geometry and upper and lower tolerance limits. It defines the maximum and minimum allowable geometric deviations of the welded component's shape. The envelope region can include two boundary surfaces: the outer surface and the inner surface of the standard design model.
[0051] It should be noted that the standard design model can carry upper and lower tolerance limits. Based on this, the tolerance envelope can be obtained by generating inner and outer boundary surfaces along the surface normal according to the upper and lower tolerance limits. The out-of-tolerance points can be determined by determining whether the point cloud deviation map is within the tolerance envelope. Adjacent out-of-tolerance points are connected to obtain the out-of-tolerance region, and then the out-of-tolerance adjustable region can be determined.
[0052] Understandably, identifying the out-of-tolerance adjustable area from the point cloud deviation map based on the tolerance envelope can ensure that the repair area of the welded component falls within the design allowable range, thereby achieving high-precision identification and quantitative adjustment of the deformation of the welded component.
[0053] Meanwhile, since the judgment and execution standards are based on the tolerance envelope established by the upper and lower tolerance limits of the standard design model, the consistency of each adjustment can be enhanced, thereby improving the stability and reliability of welding deformation correction.
[0054] Based on any of the above embodiments, the adjustment execution device includes a heating execution module and a rapid cooling execution module.
[0055] The heating execution module, also known as a high-frequency rapid heating system or high-frequency heating device, is used to rapidly heat the adjustable area of the welded component at high frequency, causing local stress release or micro-plastic deformation of the material.
[0056] The rapid cooling execution module, also known as the atomized spray cooling system or atomized rapid cooling device, is used to perform atomized spray rapid cooling treatment on areas of welded components that experience localized stress release or micro-plastic deformation, so that the material of the welded components can be quickly shaped and secondary rebound can be suppressed.
[0057] Specifically, based on preset adjustment criteria, a first adjustment path and first operating parameters for the heating execution module are automatically generated according to the identified adjustable out-of-tolerance area. Similarly, a second adjustment path and second operating parameters for the rapid cooling execution module are automatically generated based on the identified adjustable out-of-tolerance area. The first and second adjustment paths may each include a movement route between the adjustment parts. The first operating parameters may include the heating frequency and heating time of the heating execution module, while the second operating parameters may include the atomization spray rate. Specific adjustment parameters such as heating frequency, heating time, and atomization spray rate can be determined based on the material of the welded component; this embodiment of the invention does not limit this.
[0058] In some embodiments, controlling the adjustment execution device to adjust the out-of-tolerance adjustable area according to the adjustment parameters includes: controlling the heating execution module to heat the out-of-tolerance adjustable area according to the adjustment parameters, and controlling the rapid cooling execution module to follow the heating execution module to perform atomized spraying on the out-of-tolerance adjustable area according to the adjustment parameters.
[0059] It should be noted that after the heating execution module heats the adjustable area, the rapid cooling execution module can be immediately controlled to perform atomized spraying on the adjustable area. The specific time interval can also be determined according to the material of the welded component, and this embodiment of the invention does not limit it.
[0060] Understandably, compared to correcting the out-of-tolerance adjustable area through flame and mechanical adjustment processes, the hot-cold linkage adjustment method, which controls the rapid cooling execution module to follow the heating execution module to perform atomized spraying on the out-of-tolerance adjustable area, reduces the risk of residual stress accumulation inside the material, thereby effectively reducing the risk of secondary deformation and material structure damage, and improving the comprehensive mechanical properties and long-term service stability of welded components.
[0061] Meanwhile, by adjusting parameters for scenario-based and programmable local fine-tuning correction, local deformation in the out-of-tolerance adjustable area can be adjusted in a fixed-point, quantitative, and traceable manner. This controls heat input while reducing the range of the heat-affected zone, ensuring that the structural dimensions and geometry of the welded components after adjustment meet the assembly and usage requirements.
[0062] Based on any of the above embodiments, after obtaining the standard design information and post-weld surface information of the welded component, the method further includes: comparing the post-weld surface information with the standard design information to determine the non-adjustable out-of-tolerance area of the welded component; generating an early warning prompt based on the non-adjustable out-of-tolerance area, and sending the early warning prompt to the user.
[0063] It should be noted that a digital identifier can be added to the non-adjustable area out of tolerance, and it can be bound to the welded component. When the deformation of the welded component is determined to be eliminated and enters the manufacturing process, an early warning can be generated based on the digital identifier and sent to the manufacturing operator to prompt the manufacturing operator to take indirect correction and process compensation measures.
[0064] Understandably, by generating early warning prompts based on areas with out-of-tolerance and unadjustable limits, data tracking can be achieved. Sending early warning prompts to users in downstream processes of welded components can realize data closure and dynamic feedback in the manufacturing process.
[0065] Based on any of the above embodiments, after controlling the adjustment execution device to adjust the out-of-tolerance adjustable area according to the adjustment parameters, the method further includes: obtaining the surface information of the welded component after adjustment; comparing the surface information after adjustment with the standard design information to obtain a verification result; the verification result is used to determine whether to repeat the welding deformation adjustment step of the welded component.
[0066] The method for obtaining surface information of welded components after adjustment is basically the same as the method for obtaining surface information of welded components after welding, and will not be repeated here.
[0067] It should be noted that the out-of-tolerance area can be obtained by comparing the surface information after adjustment with the standard design information. By checking whether there is an adjustable area in the out-of-tolerance area, the verification result of whether the welding deformation of the welded component has been eliminated can be obtained. If so, proceed to the next process; otherwise, repeat the welding deformation adjustment steps for the welded component.
[0068] Understandably, after adjusting the adjustable area of the welded component, the verification results obtained by comparing the adjusted surface information with the standard design information are dynamically fed back. This is then matched and aligned with the structural characteristics of the welded component to generate a point cloud deviation map. The adjustable area is identified from the point cloud deviation map using the tolerance envelope. Based on the adjustable area, adjustment parameters are automatically planned to form a data closed loop, realizing adaptive feedback control for welding deformation adjustment. This improves the accuracy, consistency, and automation level of welded component repair.
[0069] Figure 2 This is a schematic diagram of the architecture of the welding deformation control method provided by the present invention, as shown below. Figure 2As shown, in order to illustrate the function of the welding deformation control method provided in this embodiment, a specific example is provided below.
[0070] First, a welding deformation control system based on the concept of intelligent adaptive control is constructed. The welding deformation control system integrates a three-dimensional scanning device, a heating execution module, a rapid cooling execution module, and a data processing terminal, thus obtaining a hardware layer that provides a foundation for implementing the welding deformation control method.
[0071] Then, a 3D scanning device can be used to scan the welded component to collect post-weld surface information and generate a post-weld point cloud model; based on the structural characteristics of the welded component, the post-weld point cloud model of the welded component is matched and aligned with the standard design model, and a point cloud deviation map of the welded component is generated by comparing the post-weld point cloud model with the standard design model. The tolerance envelope is used to identify and determine the non-adjustable out-of-tolerance areas of the welded component from the point cloud deviation map, and an early warning prompt is generated based on the non-adjustable out-of-tolerance areas and sent to the user; and / or, The point cloud deviation map of the welded component is generated by comparing the post-weld point cloud model with the standard design model. The tolerance envelope is used to identify and determine whether there is an adjustable area of the welded component that exceeds the tolerance. If not, proceed to the next process. If so, the adjustable area of the welded component is adjusted by high-frequency heating and atomized spray cooling according to the planned adjustment path. The surface information of the welded component after adjustment is rescanned to verify whether the deformation of the welded component has been eliminated. If so, proceed to the next process. If not, repeat the adjustment steps of high-frequency heating and atomized spray cooling according to the planned adjustment path for the adjustable area of the welded component.
[0072] The welding deformation control system provided by the present invention is described below. The welding deformation control system described below can be referred to in correspondence with the welding deformation control method described above.
[0073] The system includes: A scanning device is used to collect post-weld surface information of components and send the post-weld surface information to the data processing terminal; A data processing terminal is used to acquire standard design information and post-weld surface information of welded components, compare the post-weld surface information with the standard design information to determine the out-of-tolerance adjustable area of the welded components, determine the adjustment execution device to generate adjustment parameters for adjusting the out-of-tolerance adjustable area, and send the adjustment parameters to the adjustment execution device. The adjustment execution device is used to receive adjustment parameters sent by the data processing terminal, so as to adjust the out-of-tolerance adjustable area according to the adjustment parameters.
[0074] Based on any of the above embodiments, the scanning device is further used to collect surface information of the component after adjustment and send the surface information after adjustment to the data processing terminal; The data processing terminal is also used to acquire the surface information of the welded component after adjustment; compare the surface information after adjustment with the standard design information to obtain a verification result; the verification result is used to determine whether to repeat the welding deformation adjustment step of the welded component.
[0075] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.
[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A method for controlling welding deformation, characterized in that, include: Obtain standard design information and post-weld surface information of welded components; The out-of-tolerance adjustable area of the welded component is determined by comparing the post-weld surface information with the standard design information; A maintenance execution device is determined to generate maintenance parameters for the adjustable area out of tolerance, and the maintenance execution device is controlled to perform maintenance on the adjustable area out of tolerance based on the maintenance parameters.
2. The welding deformation control method according to claim 1, characterized in that, Obtain standard design information and post-weld surface information of welded components, including: Obtain the standard design model of the welded component; The post-weld surface information of the welded component is acquired using a 3D scanning device; The step of comparing the post-weld surface information with the standard design information to determine the out-of-tolerance adjustable area of the welded component includes: A post-weld point cloud model is generated based on the post-weld surface information of the welded component; The post-weld point cloud model of the welded component is compared with the standard design model to determine the adjustable area of deviation.
3. The welding deformation control method according to claim 2, characterized in that, Before comparing the post-weld point cloud model of the welded component with the standard design model to determine the adjustable area of deviation, the method further includes: The post-weld point cloud model of the welded component is matched and aligned with the standard design model based on the structural characteristics of the welded component.
4. The welding deformation control method according to claim 2, characterized in that, The step of comparing the post-weld point cloud model of the welded component with the standard design model to determine the adjustable area of deviation includes: A point cloud deviation map of the welded component is generated by comparing the post-weld point cloud model of the welded component with the standard design model. The adjustable region for exceeding the tolerance is determined based on the point cloud deviation map.
5. The welding deformation control method according to claim 4, characterized in that, The step of determining the adjustable region based on the point cloud deviation map includes: Generate the tolerance envelope based on the upper and lower tolerance limits of the standard design model; The adjustable region of out-of-tolerance is determined by identifying the point cloud deviation map using the tolerance envelope.
6. The welding deformation control method according to any one of claims 1 to 5, characterized in that, The adjustment and maintenance execution equipment includes a heating execution module and a rapid cooling execution module; The step of controlling the adjustment execution device to adjust the out-of-tolerance adjustable area according to the adjustment parameters includes: The heating execution module is controlled to heat the adjustable area according to the adjustment parameters, and the rapid cooling execution module is controlled to follow the heating execution module to perform atomized spraying on the adjustable area according to the adjustment parameters.
7. The welding deformation control method according to claim 1, characterized in that, After obtaining the standard design information and post-weld surface information of the welded component, the method further includes: The non-adjustable out-of-tolerance area of the welded component is determined by comparing the post-weld surface information with the standard design information. An early warning message is generated based on the unadjustable out-of-tolerance area and sent to the user.
8. The welding deformation control method according to claim 1, characterized in that, After controlling the adjustment execution device to adjust the out-of-tolerance adjustable area according to the adjustment parameters, the method further includes: Obtain the surface information of the welded component after adjustment; The verification result is obtained by comparing the surface information after adjustment with the standard design information; the verification result is used to determine whether the welding deformation adjustment step of the welded component needs to be repeated.
9. A welding deformation control system, characterized in that, include: A scanning device is used to collect post-weld surface information of components and send the post-weld surface information to a data processing terminal; A data processing terminal is used to acquire standard design information and post-weld surface information of welded components, compare the post-weld surface information with the standard design information to determine the out-of-tolerance adjustable area of the welded components, determine the adjustment execution device to generate adjustment parameters for adjusting the out-of-tolerance adjustable area, and send the adjustment parameters to the adjustment execution device. The adjustment execution device is used to receive adjustment parameters sent by the data processing terminal, so as to adjust the out-of-tolerance adjustable area according to the adjustment parameters.
10. The welding deformation control system according to claim 9, characterized in that, The scanning device is also used to collect surface information of the component after adjustment and send the surface information after adjustment to the data processing terminal. The data processing terminal is also used to acquire the surface information of the welded component after adjustment; compare the surface information after adjustment with the standard design information to obtain a verification result; the verification result is used to determine whether to repeat the welding deformation adjustment step of the welded component.