Methods, devices, host computers, media, and products for correcting defects in molded products.

Abstract

This application relates to the field of mold technology, and in particular to a method, apparatus, host computer, medium, and product for correcting defects in molded products. The method includes: identifying defective areas in the product during a target process; uniformly applying a scraping indicator to the defective areas of the product; placing the applied product onto the concave mold of a mold, and using a press to close the concave and convex molds; determining the correction area of ​​the concave mold based on the coloring state of the defective areas after mold closing; and correcting the correction area until the concave mold meets a preset standard. This solves the problems of low efficiency and high cost associated with manually eliminating product defects in related technologies.

Description

Technical Field

[0001] This application relates to the field of mold technology, and in particular to a method, device, host computer, medium and product for correcting defects in molded products. Background Technology

[0002] With the continuous development and progress of the automotive manufacturing industry, vehicle manufacturers are placing increasingly higher demands on stamping dies. Product development cycles are shortening, product manufacturing costs are decreasing, and product quality requirements are becoming more stringent. Due to the structural characteristics of products, the multi-process combination of stamping dies, and the surface changes caused by springback of parts, many factors cannot be fully resolved during the stamping process, inevitably bringing some minor defects to the final product.

[0003] Side panel products are complex outer covering stamped parts. Different car models have different styles, and no two products are the same. During the stamping process, the parts need to be completed by combining multiple stamping dies, resulting in complex and irregular products. The final product may have surface defects such as pits, flow, slippage, scratches, burrs, dirt spots, and surface deformation. Pit defects in the upper frame of the side panel are a common quality problem. These defects may stem from various factors such as manufacturing process, product characteristics, sheet material, and equipment precision. The presence of defects not only affects the aesthetics of the entire vehicle. The traditional method for dealing with upper frame surface defects is to repeatedly overlap and weld, repeatedly verifying. For areas with severe surface defects, it is difficult to accurately determine the shape, size, location, quantity, and severity of the defects. This consumes a lot of equipment and human resources and also requires a high level of individual skill, relying entirely on multiple rounds of manual correction. Summary of the Invention

[0004] This application provides a method, apparatus, host computer, medium, and product for correcting defects in molded dough products, in order to solve the problems of low efficiency and high cost in related technologies that rely on manual removal of dough product defects.

[0005] The first aspect of this application provides a method for correcting defects in molded dough, comprising the following steps: identifying defective areas in the dough during a target process; uniformly applying a scraping indicator to the defective areas of the dough; placing the applied dough on the concave mold of a mold, and using a press to close the concave and convex molds; determining the correction area of ​​the concave mold based on the coloring state of the defective areas of the dough after mold closing, and correcting the correction area until the concave mold meets a preset standard and the correction stops.

[0006] Optionally, the coloring state includes: coloring color and coloring thickness. The correction area of ​​the die is determined based on the coloring state and / or coloring thickness of the defective area of ​​the dough after mold closing, including: detecting whether there is an area in the coloring color and / or coloring thickness of the defective area of ​​the dough after mold closing that meets the preset correction conditions; if there is an area that meets the preset correction conditions, then the area that meets the preset correction conditions is the correction area of ​​the die.

[0007] Optionally, after determining the correction area of ​​the die based on the coloring state of the defective area of ​​the dough after mold closing, the method further includes: if the coloring color and / or coloring thickness have not changed, then adjusting the parameters of the press.

[0008] Optionally, the correction area is corrected until the die meets the preset standard and the correction stops, including: detecting the edge area of ​​the correction area; and correcting the die starting from the edge area.

[0009] Optionally, identifying defective areas in the target process includes: inspecting the product parts and each process part for defects; and comparing the defects in the product parts with the defects in each process part to determine the target process.

[0010] Optionally, before identifying the defective areas of the dough in the target process, the method further includes: obtaining the defect value of each process; correcting the process mold of the corresponding process based on the defect value, and adjusting each process mold to reach the reference state.

[0011] A second aspect of this application provides a device for correcting defects in molded dough, comprising: an identification module for identifying defective areas in the dough during a target process; an application module for uniformly applying a scraping indicator to the defective areas of the dough; a placement module for placing the applied dough onto the concave mold of a mold, and using a press to close the concave and convex molds; and a correction module for determining the correction area of ​​the concave mold based on the coloring state of the defective areas of the dough after mold closing, and correcting the correction area until the concave mold meets a preset standard and the correction stops.

[0012] Optionally, the coloring state includes: coloring color and coloring thickness. The correction module is further used to: detect whether there is an area in the coloring color and / or coloring thickness of the defective area of ​​the molded product that meets the preset correction conditions; if there is an area that meets the preset correction conditions, then the area that meets the preset correction conditions is the correction area of ​​the die.

[0013] Optionally, it also includes: a first adjustment module, which, after determining the correction area of ​​the die based on the coloring state of the defective area of ​​the dough after mold closing, further includes: adjusting the parameters of the press if the coloring color and / or coloring thickness have not changed.

[0014] Optionally, the correction module is further used to: detect the edge region of the correction area; and correct the die starting from the edge region.

[0015] Optionally, the identification module is further used to: detect surface defects in product parts and each process part; and compare the surface defects of the product parts with the surface defects of each process part to determine the target process.

[0016] Optionally, it also includes: a second adjustment module, used to obtain the defect value of each process before identifying the defect area of ​​the dough in the target process; and to correct the process mold of the corresponding process according to the defect value, and adjust each process mold to reach the reference state.

[0017] A third aspect of this application provides a host computer, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor executes the program to perform a method for correcting defects in molded products as described in the above embodiments.

[0018] A fourth aspect of this application provides a computer-readable storage medium having a computer program or instructions stored thereon, which are executed by a processor to perform a method for correcting defects in molded products as described above.

[0019] The fifth aspect of this application provides a computer program product, including a computer program or instructions, which, when executed, implement the method for correcting defects in molded products as described in the above embodiments.

[0020] Therefore, this application has at least the following beneficial effects:

[0021] This application's embodiments can identify the target process that causes surface defects, correct the defective areas in the target process, and determine the correction area of ​​the die using the coloring state of the scraping indicator. This achieves the correction of surface defects in the die, bringing it up to the overall vehicle quality requirements. It reduces the number of welding operations in traditional processes, decreases the number of rounds of defect correction, and improves correction efficiency. Therefore, it solves the technical problems of low efficiency and high cost associated with manually eliminating surface defects in related technologies.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0024] Figure 1 This is a flowchart of a method for correcting defects in molded products according to an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of a side panel upper frame surface product provided according to an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the hidden pit area 1 of the side frame surface according to an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the side frame upper frame surface pit area 2 and surface pit area 3 provided according to the embodiments of this application;

[0028] Figure 5 This is a schematic diagram of the hidden pit area 4 on the side frame surface according to an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of a mold surface defect correction device provided according to an embodiment of this application;

[0030] Figure 7 This is a schematic diagram of the structure of the host computer provided according to an embodiment of this application. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0032] The following description, with reference to the accompanying drawings, outlines a method, apparatus, host computer, medium, and product for correcting mold surface defects according to embodiments of this application. Addressing the issues mentioned in the background art, where traditional methods rely on manual, repeated experiments and multiple rounds of adjustments to eliminate defects without data retention or experience accumulation, and also increase personnel and resource costs, impacting manufacturing cycles and requiring more debugging rounds, this application provides a method for correcting mold surface defects. This method identifies the target process causing the surface defect, corrects the defective area in the target process, and uses the coloring state of a scraping indicator to determine the correction area of ​​the die, thereby achieving the correction of the mold surface defect. This solves the problems of low efficiency and high cost associated with manually eliminating surface defects in related technologies.

[0033] Related technologies disclose a processing method for a vehicle side panel and a side-forming mold for the side panel. The processing method includes the following steps: S1, performing a drawing process on the side panel material; performing a first trimming process on the drawn side panel material, trimming the side edges of the side panel material and retaining multiple supplementary processing sheets, which are spaced apart along the side edges and protrude outwards, etc. This processing method can improve the processing accuracy of the side panel shaping process, thereby avoiding surface distortion or wrinkles that could affect assembly and sealing. However, it differs from the modified method in the application.

[0034] Specifically, Figure 1 This is a flowchart illustrating a method for correcting defects in molded products, as provided in an embodiment of this application.

[0035] like Figure 1 As shown, the method for correcting defects in the molded dough includes the following steps:

[0036] In step S101, defective areas of the dough in the target process are identified.

[0037] Since the manufacturing of molded dough products involves multiple processes (such as drawing, trimming, shaping and finishing), and the target process is the process where dough products have defects, the embodiments of this application can identify the defective areas of the dough products in the target process so as to correct the target process that produces the defects.

[0038] In this embodiment of the application, identifying the defective area of ​​the dough in the target process includes: detecting the dough defects of the product and each process part; and comparing the dough defects of the product and each process part to determine the target process.

[0039] It is understood that, in the embodiments of this application, the target process for which the surface defect occurs can be determined by comparing the surface defect of the process part with the surface defect of the product part. For example, if the surface defect of the product part is a surface scratch, and the surface defect of a certain process part is also a surface scratch, then the process generated by this process part can be determined as the target process.

[0040] In this application, defects in the dough can be identified using techniques such as oil film, light recognition, or oilstone polishing.

[0041] In this embodiment of the application, before identifying the defective areas of the dough in the target process, the method further includes: obtaining the defect value of each process; correcting the process mold of the corresponding process according to the defect value, and adjusting each process mold to reach the reference state.

[0042] It is understood that, before identifying the defective areas of the dough in the target process, the embodiments of this application may adjust the reference state of the process mold and correct the process mold of the process corresponding to the defect value according to the defect value, so that each process mold reaches the reference state.

[0043] One method for obtaining defect values ​​is to use ATOS photogrammetric scanning technology to extract relevant scanning data such as defect area, lowest point position, and value. Based on the defect values, a positive value is calculated in reverse to perform positive data compensation and refine the mold data.

[0044] In step S102, the scraping revealing agent is evenly applied to the defective areas of the surface.

[0045] The scratch indicator can be a blue scratch indicator.

[0046] In step S103, the coated dough is placed on the concave mold of the mold, and the concave mold and the convex mold are closed by a press.

[0047] It is understood that, in the embodiments of this application, the coated dough can be placed on the concave mold of the mold, and the concave mold and the convex mold can be closed by a press.

[0048] In step S104, the correction area of ​​the die is determined according to the coloring state of the defective area of ​​the surface after mold closing, and the correction area is corrected until the die meets the preset standard and the correction stops.

[0049] The coloring state includes color and thickness. The preset standard can be set according to the specific situation, and there are no specific limitations on it.

[0050] Since the scraping agent leaves traces on the surface during the mold closing process, the embodiments of this application can determine the correction area of ​​the die based on the coloring state of the defective area of ​​the surface after mold closing, and correct the correction area until the die meets the preset standard and the correction stops, thereby realizing the correction of the surface defects of the mold and making it meet the overall vehicle quality requirements. Compared with the prior art, it reduces the number of welding times in the traditional process, reduces the number of rounds to solve defects, and improves the efficiency of correction.

[0051] It should be noted that under normal mold correction conditions, the die is corrected based on the punch. Therefore, in this embodiment, only the die is corrected so that the corrected die meets the preset standard.

[0052] In this embodiment of the application, the correction area of ​​the die is determined based on the coloring state and / or coloring thickness of the defective area of ​​the dough after mold closing, including: detecting whether there is an area that meets the preset correction conditions in the coloring color and / or coloring thickness of the defective area of ​​the dough after mold closing; if there is an area that meets the preset correction conditions, then the area that meets the preset correction conditions is the correction area of ​​the die.

[0053] The preset correction conditions can be set according to specific circumstances, without specific limitations, such as uneven coloring or coloring thickness greater than 1mm.

[0054] It is understood that, according to the embodiments of this application, there may be areas that meet the preset correction conditions based on the color and thickness of the defective areas of the dough after mold closing. If such areas exist, the areas that meet the preset correction conditions are the correction areas of the concave mold.

[0055] In this embodiment of the application, after determining the correction area of ​​the die based on the coloring state of the defective area of ​​the dough after mold closing, the method further includes: if the coloring color and / or coloring thickness have not changed, then adjusting the parameters of the press.

[0056] It is understood that in the embodiments of this application, when the color and / or thickness of the coloring do not change, it indicates that the press pressure is insufficient and the parameters of the press need to be adjusted.

[0057] In this embodiment of the application, the correction of the correction area is carried out until the die meets the preset standard and the correction is stopped, including: detecting the edge area of ​​the correction area; and correcting the die starting from the edge area.

[0058] Since the edge region is a critical region, the embodiments of this application can start the correction of the die from the edge region of the correction area.

[0059] The following specific embodiment illustrates a method for correcting defects in molded parts, taking the elimination of dark pit defects in the upper frame of the vehicle side panel as an example (the upper frame of the side panel is shown below). Figure 2 As shown, the hidden pits in different areas of the dough are as follows: Figure 3 , Figure 4 and Figure 5 As shown in the diagram, by identifying and determining the location of defects in the product, the defect location is reverse-calculated using reverse data, and positive compensation is performed. This is applied in the actual finishing process, and fine-tuning is carried out based on the actual effect, thereby completing the product adjustment and replacing the manual method of multiple rounds of welding and multiple rounds of repair. Ultimately, the overall vehicle quality requirements are met. The specific steps are as follows:

[0060] 1. Ensuring the basic condition of the mold: Ensure the basic condition of the mold for each process meets the requirements. First, the error between the material receiving state of the drawing mold and the theoretical receiving line should be controlled within 2-3mm, with no process-related issues. The coloring state of the die cavity should meet customer requirements. After grinding and fitting, the die cavity needs to be smoothed, and obvious wavy curvature is not allowed. The trimming process needs to ensure the punch conforms to the requirements in terms of shape and coloring, with no issues related to stripped parts. The finishing process needs to ensure the coloring state of the blanking edge area is satisfactory. Coloring and fitting should be performed according to the coloring drawing, ensuring uniform coloring in the blanking area, with no obvious hard spots. The blanking plate should be smoothed, achieving a combination of solid and void areas. The edge should then be adjusted to approximately 5% of the material thickness, and uniformly. After completing the basic condition adjustments, stable production of process parts and final product parts for each process is achieved.

[0061] 2. Using oil film and light recognition methods, defects in the upper frame area of ​​the product part's side panel are determined. (In the light and shadow detection channel, the part is polished with an oilstone, and the surface defects are judged by light and shadow through the surrounding lights.) Based on the shape, size, and location of the defects, the type and severity of the defects are determined. Then, the process parts are identified in the same way to determine the process in which the defects occurred, and the appropriate process is selected for fine repair.

[0062] In the stamping process, the mold process is usually divided into three main categories: drawing, trimming, and shaping. The specific number of processes depends on the complexity of the part's shape. Drawing usually only requires one step, while trimming and shaping may require two to three steps depending on the complexity of the part. The typical number of mold processes ranges from four to six.

[0063] The defect areas are categorized according to their importance to the vehicle's surface. The categorization principle is related to the visibility of the surface defects, mainly divided into: 1. Directly visible surface defects; 2. Indirectly visible area defects; 3. Covered surface defects that can be seen during use. The severity of defects is further divided into four levels and three categories: Levels are minor defects (L), medium defects (M), severe defects (S), and extremely severe defects (X). Categories are: Category A defects are unacceptable to users, which will cause safety claims (internal and external) and / or imply safety risks; Category B defects are unpleasant and disruptive defects, which will cause user (internal and external) claims; Category C defects require improvement and will cause frequent claims from demanding users. The area and severity level of a defect are directly related to the number of defect points. Within the stamping range, the types, descriptions, areas, severity, and number of defect points for various defects have corresponding parameters.

[0064] The specific method for determining defects in the process is as follows: The workpiece is polished with an oilstone and then illuminated under a light channel. Common defects include the following: 1. Substandard surface roughness: If the surface roughness exceeds the specified value after testing with a surface finish measuring instrument, it is considered a defect. 2. Surface scratches: During polishing, the use of an unsuitable grinding wheel or improper operation may cause scratches on the surface. These scratches affect the appearance and performance of the mold, and therefore must be strictly controlled. 3. Depressions or protrusions: Due to uneven mold material or improper operation during polishing, depressions or protrusions may occur on the surface. These defects not only affect the appearance quality but may also affect the precision and service life of the mold. Therefore, it is necessary to closely monitor changes in the mold surface during polishing and promptly identify and address these defects.

[0065] 3. Use an oilstone for a second inspection to select and adjust the process, analyze the root cause of the defects, and then choose the appropriate method to adjust. Most defects at the side frame are caused by missing material at the corner, which causes irregular flow of the sheet material and changes in curvature, resulting in concave defects.

[0066] Oilstone polishing inspection is an essential step in the commissioning process, and generally includes the following aspects: 1. Scratches: Linear, arc-shaped, or dotted scratches appear on the surface of the part. These scratches may be caused by excessively large abrasive grains used during polishing, improper operation, or impurities in the abrasive wheel itself. The depth, length, and number of scratches may vary depending on the specific situation, but they usually affect the appearance quality and performance of the part; 2. Dents or protrusions: Shallow dents or protrusions appear on the surface of the part. This may be caused by uneven material, excessive polishing pressure, or excessively long polishing time.

[0067] The solutions include: for surface roughness issues, adjusting the polishing slurry ratio, replacing the polishing wheel with a suitable one, or improving polishing process parameters can improve surface quality; for surface scratches, replacing the polishing wheel, adjusting the polishing machine's speed and feed rate can reduce scratches. Simultaneously, stable operation must be maintained during polishing to avoid excessive force or improper handling that could cause surface scratches; for surface defects such as dents or protrusions, partial repair or complete repolishing can be used. Partial repair can use manual grinding or electrical discharge machining to remove the defective parts and restore surface smoothness; complete repolishing requires repeating the entire polishing process to ensure the surface quality meets requirements.

[0068] 4. Utilize ATOS photographic scanning technology to extract relevant scanning data such as defect areas, lowest point locations, and measurements.

[0069] 5. Based on the defect value, calculate the positive value in reverse (for example, if a part has a dent defect, the fitter needs to perform argon arc welding on the defect area. The welding value needs to be checked against the defect value. After welding, the position is corrected). Perform positive data compensation, refine the mold surface data, and form a new smooth curvature machining data.

[0070] 6. Using the new data, the adjustment process is carried out by punch welding. Since the CNC machining accuracy cannot meet the requirements of the product adjustment, the mold needs to be manually refined to make the punch surface more natural and smooth, without abrupt turns or uneven areas, and form a perfect transition with the shape of other irregular areas.

[0071] 7. Once the mold baseline (the mold's baseline state is the state in which it fully meets the standards during the debugging phase, simply put, there is no room for improvement during the manual debugging phase) meets the requirements, it needs to be placed on a press machine for mold closing and fine finishing of the processing area. The fine finishing process requires tools such as a grinding wheel, grinding head, straight edge tool, polishing oilstone, and blue scraping indicator. Using the previous process part, apply the blue evenly to the area requiring fine finishing, ensuring uneven thickness and applying it as thinly as possible. Adjust the press parameters and press. During fine finishing, it is necessary to control the grinding force to avoid over- or under-grinding. Fine finishing should be performed according to the blue coloring state, paying attention to the order. Focus on key edge areas for crucial fit and fine finishing before gradually expanding to other areas. Throughout the process, ensure the cleanliness of the part and the mold. After 2-3 rounds of fine finishing, the mold fine finishing is complete, the process part is produced, and the single-process upper frame dark pit defect problem is resolved.

[0072] The blue scraping indicator is used during the grinding process with a grinding wheel. The blue indicator is applied to the part, and the blue-coated material is placed on the punch of the mold before the punch and die are closed. Theoretically, the punch and die clearance should be equal, but this is not always the case. During the mold closing process, the blue material leaves marks on the part due to the clearance. In areas with smaller clearances, the blue material is touched, becoming thinner or squeezed out. In areas with larger clearances, the blue material remains unchanged. During grinding, the punch of the mold is usually not allowed to be moved by the grinding wheel. Using the punch as a reference, the die is ground with a grinding wheel in areas with abnormal clearances. The uniformity of the blue material is visually observed during the compounding process to ensure the die is ground to the required standard.

[0073] In addition, if the press pressure is insufficient, the blue scraping indicator will not change. All the blue color needs to be in contact with the convex and concave dies. If they are in contact, it means that the gap between the convex and concave dies meets the requirements for normal production of dough forming.

[0074] 8. The final product is inspected using oil film and light recognition methods. The defects of hidden pits in the surface are resolved, meeting customer requirements.

[0075] In summary, the impact of fine-tuning on the surface defects of the upper frame with hidden pits is reduced. This decreases the number of welding operations required by traditional processes, reducing the number of problem-solving rounds. Fine-tuning resolves the problem in one go, improving overall debugging efficiency by approximately 50%. It also preserves fine-tuning data and reduces mold losses from multiple rounds of manual operation, improving mold quality. Proper mold detailing, with each edge finely polished, results in a flawless, smooth-lined mold appearance, showcasing exceptional craftsmanship. This application, through summarizing and researching the side panel forming process, demonstrates that fine-tuning can resolve hidden pit defects in the upper frame surface during the debugging phase, thus shortening the mold debugging cycle. Traditional methods for resolving hidden pit defects involve multiple layers of manual welding, which damages the mold's punches, alters the material in the welding area, affects mold lifespan, and makes it difficult to meet customer quality requirements. By using photography and retouching techniques, positive data compensation, processing, and retouching can be performed on defective areas of the upper frame product. This can effectively solve the above-mentioned problems, reduce equipment and manpower costs, ensure mold quality, reduce debugging cycles, and preserve data sources and operational difficulty.

[0076] According to the mold surface defect correction method proposed in the embodiments of this application, the target process that produces surface defects can be identified, the surface defect area of ​​the target process can be corrected, and the correction area of ​​the die can be determined by using the coloring state of the scraping indicator, thereby realizing the correction of mold surface defects to meet the overall vehicle quality requirements, reducing the number of welding operations in traditional processes, reducing the number of rounds of defect resolution, and improving the efficiency of correction.

[0077] Next, with reference to the accompanying drawings, a device for correcting defects in molded products according to an embodiment of this application is described.

[0078] Figure 6 This is a block diagram of a device for correcting defects in molded products according to an embodiment of this application.

[0079] like Figure 6 As shown, the mold surface defect correction device 10 includes: an identification module 100, an application module 200, a placement module 300, and a correction module 400.

[0080] The identification module 100 is used to identify the defective areas of the dough in the target process; the application module 200 is used to evenly apply the scraping indicator to the defective areas of the dough; the placement module 300 is used to place the applied dough on the concave mold of the mold and use a press to close the concave mold and the convex mold; the correction module 400 is used to determine the correction area of ​​the concave mold according to the coloring state of the defective areas of the dough after mold closing, and correct the correction area until the concave mold meets the preset standard and the correction stops.

[0081] In this embodiment of the application, the coloring state includes: coloring color and coloring thickness. The correction module 400 is further used to: detect whether there is a region that meets the preset correction conditions in the coloring color and / or coloring thickness of the defective area of ​​the dough after mold closing; if there is a region that meets the preset correction conditions, the region that meets the preset correction conditions is the correction area of ​​the concave mold.

[0082] In this embodiment of the application, the device 10 further includes: a first adjustment module.

[0083] The first adjustment module, after determining the correction area of ​​the die based on the coloring state of the defective area of ​​the dough after mold closing, further includes: adjusting the parameters of the press if the coloring color and / or coloring thickness have not changed.

[0084] In this embodiment, the correction module 400 is further configured to: detect the edge region of the correction area; and correct the die starting from the edge region.

[0085] In this embodiment of the application, the identification module 100 is further used to: detect surface defects in the product part and each process part; and compare the surface defects of the product part and the surface defects of each process part to determine the target process.

[0086] In this embodiment of the application, the device 10 further includes a second adjustment module.

[0087] The second adjustment module is used to obtain the defect value of each process before identifying the defect area of ​​the dough in the target process; and to correct the process mold of the corresponding process according to the defect value, so as to adjust the process mold of each process to reach the benchmark state.

[0088] It should be noted that the explanation of the aforementioned method for correcting defects in molded products also applies to the device for correcting defects in molded products in this embodiment, and will not be repeated here.

[0089] The mold surface defect correction device proposed in the embodiments of this application can identify the target process that produces the surface defect, correct the surface defect area of ​​the target process, and determine the correction area of ​​the die by using the coloring state of the scraping indicator, thereby realizing the correction of the mold surface defect to meet the overall vehicle quality requirements, reducing the number of welding operations in traditional processes, reducing the number of rounds of defect resolution, and improving the correction efficiency.

[0090] Figure 7 A schematic diagram of the structure of a host computer provided in an embodiment of this application. The host computer may include:

[0091] The memory 701, the processor 702, and the computer program stored on the memory 701 and capable of running on the processor 702.

[0092] When the processor 702 executes the program, it implements the method for correcting defects in molded products provided in the above embodiments.

[0093] Furthermore, the host computer also includes:

[0094] Communication interface 703 is used for communication between memory 701 and processor 702.

[0095] The memory 701 is used to store computer programs that can run on the processor 702.

[0096] The memory 701 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0097] If the memory 701, processor 702, and communication interface 703 are implemented independently, then the communication interface 703, memory 701, and processor 702 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, Figure 7 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0098] Optionally, in a specific implementation, if the memory 701, processor 702, and communication interface 703 are integrated on a single chip, then the memory 701, processor 702, and communication interface 703 can communicate with each other through an internal interface.

[0099] The processor 702 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0100] This application also provides a computer-readable storage medium storing a computer program or instructions thereon, which, when executed by a processor, implements the above-mentioned method for correcting defects in molded products.

[0101] This application also provides a computer program product, including a computer program or instructions, which, when executed, implement the above-mentioned method for correcting defects in molded products.

[0102] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0103] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0104] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0105] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or more of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0106] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

Claims

1. A method for correcting defects in molded products, characterized in that, Includes the following steps: Identify defective areas in the target process of the dough product; Apply the scraping indicator evenly to the defective areas of the surface material; The coated dough is placed on the concave mold of the mold, and the concave mold and the convex mold are closed by a press. The correction area of ​​the concave mold is determined based on the coloring state of the defective area of ​​the dough after mold closing, and the correction area is corrected until the concave mold meets the preset standard and the correction stops. The coloring state includes coloring color and coloring thickness. Determining the correction area of ​​the concave mold based on the coloring state of the defective area of ​​the dough after mold closing includes: detecting whether there is an area in the coloring color and / or coloring thickness of the defective area of ​​the dough after mold closing that meets a preset correction condition; if there is an area that meets the preset correction condition, then the area that meets the preset correction condition is the correction area of ​​the concave mold.

2. The method for correcting defects in molded products according to claim 1, characterized in that, After determining the correction area of ​​the concave mold based on the coloring state of the defective area of ​​the surface after mold closing, the method further includes: If the coloring and / or thickness of the coloring do not change, adjust the parameters of the press.

3. The method for correcting defects in molded products according to claim 1, characterized in that, The step of correcting the correction area until the die meets the preset standard and then stopping the correction includes: Detect the edge region of the correction area; The die is corrected starting from the edge region.

4. The method for correcting defects in molded products according to claim 1, characterized in that, The identification of defective areas in the target process of the dough includes: Inspect product parts and each process part for surface defects; The target process is determined by comparing the surface defects of the product part with the surface defects of each process part.

5. The method for correcting defects in molded products according to claim 1, characterized in that, Before identifying defective areas in the target process, the process also includes: Obtain the defect quantity value for each process; Based on the defect value, the process molds for the corresponding processes are corrected, and each process mold is adjusted to reach a reference state.

6. A device for correcting defects in molded products, characterized in that, The device is equipped with a method for correcting defects in molded products as described in any one of claims 1-5, comprising: The identification module is used to identify defective areas in the dough during the target process. The application module is used to evenly apply the scraping indicator to the defective areas of the surface material; The placement module is used to place the coated dough onto the concave mold of the mold, and to use a press to close the concave mold and the convex mold. The correction module is used to determine the correction area of ​​the concave mold based on the coloring state of the defective area of ​​the dough after mold closing, and to correct the correction area until the concave mold meets the preset standard and the correction stops.

7. A host computer, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the method for correcting defects in molded products as described in any one of claims 1-5.

8. A computer-readable storage medium having a computer program or instructions stored thereon, characterized in that, When the computer program or instructions are executed by the processor, they are used to implement the method for correcting defects in molded products as described in any one of claims 1-5.

9. A computer program product, comprising a computer program or instructions, characterized in that, When the computer program or instructions are executed, they implement the method for correcting defects in molded products as described in any one of claims 1-5.

Images