A production station interaction system based on a cover production

Abstract

The present application relates to the technical field of cover production, and particularly relates to a production station interaction system based on cover production, comprising: an uploading module configured to upload standard parameters in each stage of a cover production process; a collecting module configured to collect real parameters in each stage of the cover production process; and an analyzing module configured to receive the standard parameters in each stage of the cover production process uploaded by the uploading module and the real parameters in each stage of the cover production process collected by the collecting module, analyze error factors generated in each stage of the cover production process based on comparison between the standard parameters and the real parameters, and calculate the error factors in each stage of the cover production process by collecting parameters in each stage of the cover production process, so as to determine the cover semi-finished products in each production stage of the cover production process based on comparison between the error factors and reference determination values.

Description

Technical Field

[0001] This invention relates to the field of cover production technology, and more specifically to a production station interaction system based on cover production. Background Technology

[0002] A cover is a component with a specific shape and function. It is usually used to cover or protect certain parts of an object, serving purposes such as protection, sealing, and decoration. In the industrial field, covers can be used to protect critical components of machinery and equipment, preventing dust, impurities, and other contaminants from entering.

[0003] Patent application number 202211417504.4 discloses a method for laser vision inspection of surface defects in injection molded parts. The method comprises: detecting whether a plastic part produced by a plastic extrusion production line has reached a predetermined position; generating a detection trigger command when the plastic part is determined to have reached the predetermined position; triggering a laser vision sensor to scan the surface wheel of the plastic part based on the detection trigger command, and constructing a three-dimensional contour value of the surface profile; identifying defect area information on the plastic part based on the three-dimensional contour value, the defect area information being marked with the location information and area information of the defect area; generating robot processing instructions based on the defect area information, and controlling a mobile robot on an automated production line to perform corresponding processing on the plastic part based on the robot processing instructions.

[0004] The application aims to address the problem that "in the production and processing of plastic products, laser vision devices can be installed on the plastic product production line to collect surface data information through the plastic products in real time, thereby realizing the repair function of plastic products. However, the existing technology cannot effectively extract the surface contour information of plastic parts, which makes it unable to be well integrated with the automated production line to make corresponding processing mechanisms. As a result, the robot cannot adapt to the defects of plastic parts to complete the automated production process, resulting in low manufacturing efficiency and inability to effectively adaptively process defective products."

[0005] On the other hand, in the production of covers, the raw materials are processed through feeding, hot pressing, pressing and assembly to obtain finished products. However, if any set of work stations in feeding, hot pressing, pressing and assembly causes defects in the semi-finished cover, the subsequent processing stations often cannot make up for the existing defects, making the subsequent processing steps futile.

[0006] To address this, a production station interaction system based on cover production is proposed. Summary of the Invention

[0007] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a production station interaction system based on cover production, which solves the technical problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A production station interaction system based on cover production includes: The system comprises the following modules: an upload module for uploading standard parameters for each stage of the cap production process; a data acquisition module for acquiring actual parameters for each stage of the cap production process; an analysis module for receiving the standard parameters uploaded by the upload module and the actual parameters acquired by the data acquisition module, and analyzing the error factors generated at each stage of the cap production process based on a comparison of the standard and actual parameters; a judgment module for setting the pass / fail judgment value for cap production, receiving the error factors analyzed by the analysis module, and comparing the error factors generated at each stage of the cap production process with the pass / fail judgment value to determine whether the cap production is qualified; a capture module for capturing cap semi-finished products whose judgment result is unqualified by the judgment module; and an output module for outputting the judgment result of the judgment module. The upload module is interconnected with the acquisition module and the analysis module via a wireless network. The analysis module is interconnected with the retrieval unit via a wireless network. The retrieval unit is interconnected with the acquisition module via a wireless network. The analysis module is interconnected with the judgment module via a wireless network. The judgment module is interconnected with the capture module and the output module via a wireless network.

[0009] Furthermore, the cover production equipment includes: a feeding station, a hot pressing station, a pressing station, an assembly station, an inspection station, a coding station, and a transmission station; The raw materials for the cover production are transferred from the feeding station to the hot pressing station. After hot pressing, the hot-pressed semi-finished product is transferred to the pressing station to press the steel sleeve. The semi-finished product with the steel sleeve pressed is then transferred to the assembly station to assemble the O-ring. After the O-ring assembly is completed, the semi-finished product is sent to the inspection station for airtightness testing and steel sleeve missing detection. After passing the inspection, it is determined to be a qualified product. Finally, it is transferred to the coding station for coding and output.

[0010] Furthermore, the standard parameters for each stage of the cover production process uploaded in the upload module are manually uploaded by the system user. The standard parameters for each stage of the cover production process include: standard material feeding quality threshold, standard hot pressing forming image, standard image after pressing steel sleeve, and standard image after assembling O-ring. After the upload module completes the upload of the standard parameters for each stage of the cover production process, it stores the standard parameters for each stage of the cover production process. Among them, the standard feeding quality threshold is unique, and the number of standard hot pressing forming images, standard pressing steel sleeve images, and standard O-ring assembly images is one or more. The transmission posture of semi-finished products at each stage of the cover production process is consistent.

[0011] Furthermore, the actual parameters collected by the acquisition module during the cover production process and at each stage correspond one-to-one with the standard parameters at each stage of the cover production process. The acquisition module is integrated with a quality sensor and a high-precision industrial camera. Each time the acquisition module collects a set of actual parameters during the cover production process and at each stage, it triggers the analysis module to run once and perform an analysis operation on a set of error factors generated during the cover production process.

[0012] Furthermore, the analysis module contains sub-modules, including: The retrieval unit is used to retrieve the actual parameters collected by the acquisition module during the cover production process and at each stage, as well as the standard parameters uploaded by the upload module during the cover production process, and transmit them to the analysis module. Each time the retrieval unit runs, it retrieves a set of standard parameters for each stage of the cover production process. The parameters retrieved for the first time are the standard material feeding quality threshold, the parameters retrieved for the second time are the standard hot pressing forming image, the parameters retrieved for the third time are the standard pressing steel sleeve image, and the parameters retrieved for the fourth time are the standard O-ring assembly image.

[0013] Furthermore, before uploading the standard hot-pressing images, standard steel sleeve images, and standard O-ring assembly images in each stage of the cover production process, a three-dimensional model of the cover semi-finished product is constructed based on the specifications of the cover semi-finished product at each stage. Then, the standard hot-pressing images, standard steel sleeve images, and standard O-ring assembly images are captured from the perspective of a high-precision industrial camera corresponding to the transmission posture of the cover semi-finished product on the three-dimensional model of the cover semi-finished product at each stage. The analysis logic for error factors generated at each stage of the cover production process in the analysis module is expressed as follows: ; In the formula: For error factor; This represents the total number of images corresponding to the actual parameters collected at any stage of the cover production process; Let be the similarity between the i-th group of images and its corresponding standard image; For correction; in, Indicates to Find the mean and correct it. The value is 0.9 or 1. When the two sets of images used to calculate the similarity originate from the surfaces of the cover where it is mated with other components, the value is adjusted accordingly. The value is 1.1; otherwise, it is corrected. The value is set to 0.9. Based on the above formula, the error factor generated in each stage is calculated and denoted as . .

[0014] Furthermore, the similarity between the image corresponding to the true parameters and its corresponding standard image is calculated using the following formula: ; In the formula: The dimension of the image shape feature vector is the total number of elements in the vector. The j-th element in the shape feature vector of the image corresponding to the true parameters; This refers to the j-th element in the shape feature vector of the corresponding standard image; This represents the total number of elements in the image texture feature vector; It is the j-th element in the texture feature vector of the image corresponding to the true parameters; This refers to the j-th element in the texture feature vector of the corresponding standard image; in, The larger the value, the higher the similarity between the two sets of images; conversely, the smaller the value, the lower the similarity between the two sets of images.

[0015] Furthermore, the aforementioned After obtaining the standard material loading quality threshold, further calculate the corresponding standard material loading quality threshold. The calculation formula is: ; In the formula: For the quality of material feeding; , These are two sets of endpoints representing the standard material feeding quality threshold. During the loading of raw materials for the cover, the loading station continues to load materials until the weight detected by the quality sensor meets the standard loading quality threshold.

[0016] Furthermore, the logic for determining whether the cover production is qualified in the determination module is expressed as follows: ; In the formula: , For error factor; This is the qualification value for cover production; The above formula is used to determine the qualification of each stage in the production process of the cover. If the formula is true, it means that the semi-finished cover is qualified at the current stage; otherwise, it is unqualified.

[0017] Furthermore, At that time, the semi-finished cover output from the loading station is grabbed; At that time, the semi-finished cover output from the hot pressing station is grabbed; At that time, the semi-finished cover output from the pressing station is grabbed; At that time, the semi-finished cover output from the assembly station is grabbed; In the output module, during the stage of outputting the judgment result, the judgment result is simultaneously output to the production station of the cover production equipment.

[0018] Compared with known public technologies, the technical solution provided by this invention has the following beneficial effects: This invention provides a production station interaction system based on cover production. During operation, the system collects parameters at each stage of cover production and calculates the error factors at each stage. Based on the comparison of the error factors with reference judgment values, the system judges the quality of semi-finished covers at each stage of production. This allows defective semi-finished covers to be promptly removed from the production stations of the cover production equipment, preventing further processing. As a result, the final pass rate of cover production is effectively reduced, the efficiency and effectiveness of cover production are improved, and the production cost of covers is optimized to a certain extent. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a production station interaction system based on cover production. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present 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 the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] The present invention will be further described below with reference to embodiments.

[0023] Example 1: This embodiment provides an interactive system for production workstations based on cover production, such as... Figure 1 As shown, it includes: The cover production equipment includes: a material feeding station, a hot pressing station, a pressing station, an assembly station, an inspection station, a coding station, and a transmission station; The raw materials for the cover production are transferred from the feeding station to the hot pressing station. After hot pressing, the hot-pressed semi-finished product is transferred to the pressing station to press the steel sleeve. The semi-finished product with the steel sleeve pressed is then transferred to the assembly station to assemble the O-ring. After the O-ring assembly is completed, the semi-finished product is sent to the inspection station for air tightness testing and steel sleeve missing detection. After passing the inspection, it is judged as a qualified product. Finally, it is transferred to the coding station for coding and output. The upload module is used to upload standard parameters for each stage of the cover production process; The data acquisition module is used to collect real parameters during the production process and at each stage of the cover manufacturing process; The analysis module is used to receive standard parameters for each stage of the cover production process uploaded by the upload module and real parameters for each stage of the cover production process collected by the acquisition module. Based on the comparison between the standard parameters and the real parameters, the error factors generated at each stage of the cover production process are analyzed. The analysis module contains sub-modules, including: The retrieval unit is used to retrieve the actual parameters collected by the acquisition module during the cover production process and at each stage, as well as the standard parameters uploaded by the upload module during the cover production process, and transmit them to the analysis module. Each time the retrieval unit runs, it retrieves a set of standard parameters for each stage of the cover production process. The parameters retrieved for the first time are the standard material feeding quality threshold, the parameters retrieved for the second time are the standard hot pressing forming image, the parameters retrieved for the third time are the standard pressing steel sleeve image, and the parameters retrieved for the fourth time are the standard O-ring assembly image. Before uploading the standard hot-pressing images, standard steel sleeve images, and standard O-ring images from each stage of the cover production process, a 3D model of the cover semi-finished product is constructed based on the specifications of the cover semi-finished product at each stage. Then, the standard hot-pressing images, standard steel sleeve images, and standard O-ring images are captured from the perspective of a high-precision industrial camera corresponding to the transmission posture of the cover semi-finished product on the 3D model of the cover semi-finished product at each stage. The error factor analysis logic generated at each stage of the cover production process in the analysis module is represented as follows: ; In the formula: For error factor; This represents the total number of images corresponding to the actual parameters collected at any stage of the cover production process; Let be the similarity between the i-th group of images and its corresponding standard image; For correction; in, Indicates to Find the mean and correct it. The value is either 0.9 or 1. If the two sets of images used to calculate the similarity originate from the surfaces of the cover where it is mated with other components, then a correction is made. The value is 1.1; otherwise, it is corrected. The value is set to 0.9. Based on the above formula, the error factor generated in each stage is calculated and denoted as . ; The similarity between the image corresponding to the true parameters and its corresponding standard image is calculated using the following formula: ; In the formula: The dimension of the image shape feature vector is the total number of elements in the vector. The j-th element in the shape feature vector of the image corresponding to the true parameters; This refers to the j-th element in the shape feature vector of the corresponding standard image; This represents the total number of elements in the image texture feature vector; It is the j-th element in the texture feature vector of the image corresponding to the true parameters; This refers to the j-th element in the texture feature vector of the corresponding standard image; in, The larger the value, the higher the similarity between the two sets of images; conversely, the smaller the value, the lower the similarity between the two sets of images. After obtaining the standard material loading quality threshold, further calculate the corresponding standard material loading quality threshold. The calculation formula is: ; In the formula: For the quality of material feeding; , These are two sets of endpoints representing the standard material feeding quality threshold. Among them, the feeding station continuously feeds the raw materials for the cover until the weight sensed by the quality sensor meets the standard feeding quality threshold. The judgment module is used to set the qualified judgment value for cover production, receive the error factors generated in each stage of the cover production process analyzed by the analysis module, and compare the error factors generated in each stage of the cover production process with the qualified judgment value to determine whether the cover production is qualified. The logic for determining whether the cover production is qualified in the determination module is expressed as follows: ; In the formula: , For error factor; This is the qualification value for cover production; The above formula is used to determine the qualification of each stage in the production process of the cover. If the formula is true, it means that the semi-finished cover is qualified at the current stage; otherwise, it is unqualified. At that time, the semi-finished cover output from the loading station is grabbed; At that time, the semi-finished cover output from the hot pressing station is grabbed; At that time, the semi-finished cover output from the pressing station is grabbed; At that time, the semi-finished cover output from the assembly station is grabbed; In the output module, during the stage of outputting the judgment result of the judgment module, the judgment result is simultaneously output to the production station of the cover production equipment. The grabbing module is used to grab the semi-finished cover products that are deemed unqualified by the judgment module. The output module is used to output the judgment result of the judgment module; The upload module is connected to the acquisition module and the analysis module via a wireless network. The analysis module is connected to the retrieval unit via a wireless network. The retrieval unit is connected to the acquisition module via a wireless network. The analysis module is connected to the judgment module via a wireless network. The judgment module is connected to the capture module and the output module via a wireless network.

[0024] In this embodiment, the upload module uploads standard parameters for each stage of the cover production process, the acquisition module collects real parameters for each stage of the cover production process, and the analysis module further receives the standard parameters for each stage of the cover production process uploaded by the upload module and the real parameters for each stage of the cover production process collected by the acquisition module. Based on the comparison between the standard parameters and the real parameters, the error factors generated at each stage of the cover production process are analyzed. The retrieval unit synchronously retrieves the real parameters for each stage of the cover production process collected by the acquisition module and the standard parameters for each stage of the cover production process uploaded by the upload module, and transmits them to the analysis module. Then, the judgment module sets the cover production qualification judgment value, receives the error factors generated at each stage of the cover production process analyzed by the analysis module, and compares the error factors generated at each stage of the cover production process with the cover production qualification judgment value to determine whether the cover production is qualified. The capture module synchronously captures the cover semi-finished products whose judgment result is unqualified by the judgment module. Finally, the judgment result of the judgment module is output through the output module. The above system is used to determine the quality of semi-finished caps produced at each stage of the cap production process, thereby enabling real-time capture of defective products, improving cap production efficiency, and making the cap production process more intelligent.

[0025] Example 2: At the implementation level, based on Example 1, this example refers to... Figure 1 A further detailed description of the production station interaction system based on cover production in Example 1 is provided below: The standard parameters for each stage of the cover production process uploaded in the upload module are manually uploaded by the system user. The standard parameters for each stage of the cover production process include: standard material feeding quality threshold, standard hot pressing forming image, standard image after pressing steel sleeve, and standard image after assembling O-ring. After the upload module completes the upload of the standard parameters for each stage of the cover production process, it stores the standard parameters for each stage of the cover production process. Among them, the standard feeding quality threshold is unique, and the number of standard hot pressing forming images, standard pressing steel sleeve images, and standard O-ring assembly images is one or more. The transmission posture of semi-finished products at each stage of the cover production process is consistent. The acquisition module collects real parameters during the production process and at each stage of the cover production, which correspond one-to-one with the standard parameters at each stage of the cover production process. The acquisition module is integrated with a quality sensor and a high-precision industrial camera. Every time the acquisition module collects a set of real parameters during the production process and at each stage of the cover production, it triggers the analysis module to run once and perform an analysis operation on a set of error factors generated during the cover production process.

[0026] In this embodiment, the above settings further limit the internal parameters of the standard parameters at each stage of the cover production process, and further limit the logic of the acquisition module to collect the real parameters of each production stage of the cover production process. This provides the necessary operational data support for the system operation in Embodiment 1, ensures the stable operation of the system in Embodiment 1, and makes effective qualification judgments for each production stage of the cover production process.

[0027] In summary, the system in the above embodiments collects parameters at each stage of the cover production process, calculates the error factors at each stage, and then judges the quality of the cover semi-finished products at each stage of the production process based on the comparison of the error factors with the reference judgment values. This allows defective cover semi-finished products to be promptly removed from the production stations of the cover production equipment and no longer undergo further processing. As a result, the final pass rate of cover production is effectively reduced, the efficiency and effectiveness of cover production are improved, and the cover production cost is optimized to a certain extent.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. 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. Such modifications or substitutions will 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 production station interaction system based on cover production, characterized in that, include: The cover production equipment includes: a feeding station, a hot pressing station, a pressing station, an assembly station, an inspection station, a coding station, and a transmission station; The raw materials for the cover production are transferred from the feeding station to the hot pressing station. After hot pressing, the hot-pressed semi-finished product is transferred to the pressing station to press the steel sleeve. The semi-finished product with the steel sleeve pressed is then transferred to the assembly station to assemble the O-ring. After the O-ring assembly is completed, the semi-finished product is sent to the inspection station for air tightness testing and steel sleeve missing detection. After passing the inspection, it is determined to be a qualified product. Finally, it is transferred to the coding station for coding and output. The upload module is used to upload standard parameters for each stage of the cover production process; The data acquisition module is used to collect real parameters during the production process and at each stage of the cover manufacturing process; The analysis module is used to receive standard parameters for each stage of the cover production process uploaded by the upload module and real parameters for each stage of the cover production process collected by the acquisition module. Based on the comparison between the standard parameters and the real parameters, the error factors generated at each stage of the cover production process are analyzed. The judgment module is used to set the qualified judgment value for cover production, receive the error factors generated in each stage of the cover production process analyzed by the analysis module, and compare the error factors generated in each stage of the cover production process with the qualified judgment value to determine whether the cover production is qualified. The grabbing module is used to grab the semi-finished cover products that are deemed unqualified by the judgment module. The output module is used to output the judgment result of the judgment module; The standard parameters for each stage of the cover production process uploaded in the upload module are manually uploaded by the system user. The standard parameters for each stage of the cover production process include: standard material feeding quality threshold, standard hot pressing forming image, standard image after pressing steel sleeve, and standard image after assembling O-ring. After the upload module completes the upload of the standard parameters for each stage of the cover production process, it stores the standard parameters for each stage of the cover production process. Among them, the standard feeding quality threshold is unique, and the number of standard hot pressing forming images, standard pressing steel sleeve images, and standard O-ring assembly images is one or more. The transmission posture of semi-finished products at each stage of the cover production process is consistent. The data acquisition module collects real parameters for each stage of the cover production process, which correspond one-to-one with the standard parameters for each stage of the cover production process. The data acquisition module is integrated with a quality sensor and a high-precision industrial camera. Each time the data acquisition module collects a set of real parameters for each stage of the cover production process, it triggers the analysis module to run once and perform an analysis operation on a set of error factors generated during the cover production process. The analysis module contains sub-modules, including: The retrieval unit is used to retrieve the actual parameters collected by the acquisition module during the cover production process and at each stage, as well as the standard parameters uploaded by the upload module during the cover production process, and transmit them to the analysis module. Each time the retrieval unit runs, it retrieves a set of standard parameters for each stage of the cover production process. The parameters retrieved for the first time are the standard material feeding quality threshold, the parameters retrieved for the second time are the standard hot pressing forming image, the parameters retrieved for the third time are the standard pressing steel sleeve image, and the parameters retrieved for the fourth time are the standard O-ring assembly image. Before uploading the standard hot-pressing images, standard steel sleeve images, and standard O-ring assembled images from each stage of the cover production process, a three-dimensional model of the cover semi-finished product is constructed based on the specifications of the cover semi-finished product at each stage. Then, the standard hot-pressing images, standard steel sleeve images, and standard O-ring assembled images are captured from the perspective of a high-precision industrial camera corresponding to the transmission posture of the cover semi-finished product on the three-dimensional model of the cover semi-finished product at each stage. The analysis logic for error factors generated at each stage of the cover production process in the analysis module is expressed as follows: ； In the formula: For error factor; This represents the total number of images corresponding to the actual parameters collected at any stage of the cover production process; Let be the similarity between the i-th group of images and its corresponding standard image; For correction; in, Indicates to Find the mean and correct it. The value is either 0.9 or 1. If the two sets of images used to calculate the similarity originate from the surfaces of the cover where it is mated with other components, then a correction is made. The value is 1.1; otherwise, it is corrected. The value is set to 0.

9. Based on the above formula, the error factor generated in each stage is calculated and denoted as . ; The similarity between the image corresponding to the true parameters and its corresponding standard image is calculated using the following formula: ； In the formula: The dimension of the image shape feature vector is the total number of elements in the vector. The j-th element in the shape feature vector of the image corresponding to the true parameters; This refers to the j-th element in the shape feature vector of the corresponding standard image; This represents the total number of elements in the image texture feature vector; It is the j-th element in the texture feature vector of the image corresponding to the true parameters; This refers to the j-th element in the texture feature vector of the corresponding standard image; in, The larger the value, the higher the similarity between the two sets of images; conversely, the smaller the value, the lower the similarity between the two sets of images. The After obtaining the standard material loading quality threshold, further calculate the corresponding standard material loading quality threshold. The calculation formula is: ； In the formula: For the quality of material feeding; , These are two sets of endpoints representing the standard material loading quality threshold. Among them, the feeding station continuously feeds the raw materials for the cover until the weight sensed by the quality sensor meets the standard feeding quality threshold. The logic for determining whether the cover production is qualified in the determination module is expressed as follows: ； In the formula: , For error factor; This is the qualification value for cover production; The above formula is used to determine the qualification of each stage in the production process of the cover. If the formula is true, it means that the semi-finished cover is qualified at the current stage; otherwise, it is unqualified. At that time, the semi-finished cover output from the loading station is grabbed; At that time, the semi-finished cover output from the hot pressing station is grabbed; At that time, the semi-finished cover output from the pressing station is grabbed; At that time, the semi-finished cover output from the assembly station is grabbed; In the output module, during the stage of outputting the judgment result, the judgment result is simultaneously output to the production station of the cover production equipment.

2. The production station interaction system based on cover production according to claim 1, characterized in that, The upload module is interconnected with the acquisition module and the analysis module via a wireless network. The analysis module is interconnected with the retrieval unit via a wireless network. The retrieval unit is interconnected with the acquisition module via a wireless network. The analysis module is interconnected with the judgment module via a wireless network. The judgment module is interconnected with the capture module and the output module via a wireless network.

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