CN117972366B

CN117972366B - Quality evaluation method and system for ABS (Acrylonitrile butadiene styrene) plate

Info

Publication number: CN117972366B
Application number: CN202410392421.7A
Authority: CN
Inventors: 陈崇安
Original assignee: Shenzhen Qianlima Engineering Plastic Sheet Co ltd
Current assignee: Shenzhen Qianlima Engineering Plastic Sheet Co ltd
Priority date: 2024-04-02
Filing date: 2024-04-02
Publication date: 2024-06-14
Anticipated expiration: 2044-04-02
Also published as: CN117972366A

Abstract

The invention relates to the field of ABS plates, and discloses a quality evaluation method and a quality evaluation system for an ABS plate, wherein the quality evaluation method comprises the following steps: performing appearance preliminary evaluation on the ABS plate, including chromatic aberration evaluation and surface flatness evaluation, to obtain a standard-qualified ABS plate, performing appearance defect evaluation and appearance defect correction on the standard-qualified ABS plate, and performing analysis optimization on the processing procedure of the ABS plate in the appearance defect evaluation process; and after the appearance qualified ABS plate is obtained, carrying out weight evaluation and tensile strength evaluation on the appearance qualified ABS plate, obtaining the tensile strength qualified ABS plate based on an evaluation result, and finally judging the occurrence frequency of the tensile strength ABS plate, and optimizing the processing procedure if the occurrence frequency is lower. According to the invention, the quality evaluation can be carried out on the ABS plate, and meanwhile, the processing procedures of the ABS plate and the ABS plate are respectively corrected and optimized based on the quality evaluation result, so that potential safety hazards and reliability problems of the ABS plate after processing are avoided.

Description

Quality evaluation method and system for ABS (Acrylonitrile butadiene styrene) plate

Technical Field

The invention relates to the field of ABS (Acrylonitrile butadiene styrene) plates, in particular to a quality evaluation method and a quality evaluation system for an ABS plate.

Background

ABS sheets are a common plastic sheet, collectively referred to as acrylonitrile-butadiene-styrene copolymer sheets (Acrylonitrile Butadiene Styrene). It is formed by copolymerizing three monomers of acrylonitrile, butadiene and styrene. ABS panels are widely used in a variety of fields including furniture manufacturing, automotive parts, electronics housings, toys, and the like. The excellent performance and various processing modes of the ABS plate enable the ABS plate to become one of important materials in the plastic product industry. The quality evaluation is required after the ABS plate is manufactured, because the ABS plate may have raw material problems, processing technology problems, human factors and the like in the processing process, and in order to ensure that each performance index of the ABS plate meets relevant standards and regulations and ensure that the product quality meets the requirements of customers and markets, the quality evaluation is required to be performed on the ABS plate. Meanwhile, the quality evaluation can help to find and solve the quality problem of the ABS plate, so that potential safety hazard and reliability problems of products in the use process are avoided, and the safety and benefits of users are ensured.

Disclosure of Invention

The invention overcomes the defects of the prior art and provides a quality evaluation method and a quality evaluation system for an ABS (Acrylonitrile butadiene styrene) plate.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the first aspect of the invention provides a quality evaluation method of an ABS plate, comprising the following steps:

Sequentially carrying out color difference evaluation and surface inclination angle evaluation on the ABS plate, and screening to obtain an ABS plate with qualified specification based on a color difference evaluation result and a surface inclination angle evaluation result;

Performing appearance defect evaluation on the standard-qualified ABS plate, and if the standard-qualified ABS plate with unqualified appearance defect evaluation appears, performing processing procedure analysis and correction on the standard-qualified ABS plate, and screening to obtain the standard-qualified ABS plate based on the appearance defect evaluation result;

Sequentially carrying out weight evaluation and tensile strength evaluation on the appearance qualified ABS plate, and obtaining the tensile strength qualified ABS plate based on the evaluation result;

analyzing the occurrence frequency of the unqualified ABS plate with the tensile strength, and if the occurrence frequency of the unqualified ABS plate with the tensile strength is higher than a preset value, optimizing the processing procedure of the unqualified ABS plate with the tensile strength.

Further, in a preferred embodiment of the present invention, the ABS board is subjected to color difference evaluation and surface inclination angle evaluation sequentially, and based on the color difference evaluation result and the surface inclination angle evaluation result, the ABS board with qualified specification is obtained by screening, specifically:

Selecting an ABS plate sample from the ABS plates of the same processing batch, which need to be subjected to quality evaluation, calibrating the ABS plate sample as a target ABS plate, acquiring a spectrometer, acquiring color parameters of different positions of the target ABS plate based on the spectrometer, and calculating color differences among different positions of the target ABS plate based on the color parameters of different positions of the target ABS plate;

presetting standard chromatic aberration, introducing a cosine measurement algorithm, calculating chromatic aberration between different positions of a target ABS plate and a cosine value between standard chromatic aberration, and if the cosine value between the chromatic aberration between different positions of the target ABS plate and the cosine value between standard chromatic aberration are larger than the preset value, evaluating the corresponding target ABS plate as a chromatic aberration qualified ABS plate;

Performing laser modeling treatment on the chromatic aberration qualified ABS plate to obtain a chromatic aberration qualified ABS plate model, calculating the surface inclination angle of the chromatic aberration qualified ABS plate model, and presetting the surface standard inclination angle of the chromatic aberration qualified ABS plate model;

Evaluating a color difference qualified ABS plate corresponding to a color difference qualified ABS plate model with a surface inclination angle smaller than a surface standard inclination angle as a specification qualified ABS plate, and evaluating a color difference qualified ABS plate corresponding to a color difference qualified ABS plate model with a surface inclination angle larger than the surface standard inclination angle as a pending ABS plate;

Obtaining standard specification parameters of a target ABS plate, and grinding the undetermined ABS plate to ensure that the surface inclination angle of the undetermined ABS plate is smaller than the surface standard inclination angle, thereby obtaining a grinding-treated ABS plate;

And (3) acquiring specification parameters of the grinding ABS plate, calculating Euclidean distance between the specification parameters of the grinding ABS plate and the standard specification parameters of the target ABS plate, calibrating the Euclidean distance as a first Euclidean distance, if the first Euclidean distance is larger than a preset value, evaluating the grinding ABS plate as a specification qualified ABS plate, and discarding the corresponding grinding ABS plate with the first Euclidean distance smaller than the preset value.

Further, in a preferred embodiment of the present invention, the appearance defect evaluation is performed on the qualified ABS board, and if the qualified ABS board with unqualified appearance defect evaluation appears, the processing procedure analysis and correction are performed on the qualified ABS board, and meanwhile, based on the appearance defect evaluation result, the qualified ABS board is obtained by screening, specifically:

Performing laser modeling treatment on the standard-qualified ABS plate to obtain a standard-qualified ABS plate model, and performing appearance defect analysis on the standard-qualified ABS plate model, wherein the appearance defects of the standard-qualified ABS plate model comprise surface cracks and surface edge flatness abnormality;

If the standard qualified ABS plate model has surface cracks, the corresponding standard qualified ABS plate model is evaluated as an appearance abnormal ABS plate model, and if the standard qualified ABS plate model does not have surface cracks, the corresponding standard qualified ABS plate model is evaluated as an appearance to-be-evaluated ABS plate model;

Calculating crack states of all surface cracks in the ABS plate model with abnormal appearance, wherein the crack states comprise crack depth and crack length, presetting dangerous crack states, and judging whether the crack states of the surface cracks are larger than the dangerous crack states in the ABS plate model with abnormal appearance;

If yes, the corresponding type of appearance abnormal ABS plate model is marked as a type of appearance unrepairable ABS plate model, and if not, the corresponding type of appearance abnormal ABS plate model is marked as a type of appearance repairable ABS plate model;

The method comprises the steps of (1) enabling an appearance to be evaluated ABS plate model and an appearance repairable ABS plate model to be collectively called as two ABS plate models, and enabling a qualified ABS plate with the specification corresponding to the two ABS plate models and abnormal surface edge flatness to be marked as an appearance defect to be repaired ABS plate;

Performing appearance defect tracing on the ABS plate to be repaired of the appearance defects, and optimizing the processing procedure of the ABS plate based on the appearance defect tracing result;

Searching a surface edge flatness abnormal repairing method and a surface crack repairing method in a big data network, and outputting the surface edge flatness abnormal repairing method and the surface crack repairing method to an ABS plate with appearance defects to be repaired to obtain the ABS plate with qualified appearance.

Further, in a preferred embodiment of the present invention, the appearance defect tracing is performed on the ABS board to be repaired, and the processing procedure of the ABS board is optimized based on the appearance defect tracing result, which specifically includes:

The method comprises the steps of acquiring processing equipment of a target ABS plate, calibrating the processing equipment as ABS plate processing equipment, acquiring various processing procedures of the target ABS plate based on the ABS plate processing equipment, determining the processing procedures for carrying out appearance treatment on the target ABS plate in the various processing procedures of the target ABS plate, and calibrating the processing procedures as appearance processing procedures;

acquiring processing parameters of all appearance processing procedures, and searching standard processing parameters of the appearance processing procedures based on a big data network;

marking the appearance machining process, and if the number of the marks of the appearance machining process is 1, extracting standard machining parameters of the appearance machining process, and introducing the standard machining parameters into ABS plate machining equipment for carrying out parameter correction on the machining parameters of the appearance machining process;

If the number of marks of the appearance machining processes is greater than 1, introducing an Euclidean distance method, calculating Euclidean distances between machining parameters of all the appearance machining processes and corresponding standard machining parameters, and calibrating the appearance machining processes with the Euclidean distances greater than a preset value as abnormal appearance machining processes;

And (3) extracting standard processing parameters of the abnormal appearance processing procedure, introducing the standard processing parameters into ABS plate processing equipment, and correcting the parameters of the abnormal appearance processing procedure to obtain the optimized appearance processing procedure.

Further, in a preferred embodiment of the present invention, the weight evaluation and the tensile strength evaluation are sequentially performed on the appearance-qualified ABS sheet, and the tensile strength-qualified ABS sheet is obtained based on the evaluation result, which specifically includes:

Performing weight measurement on the appearance qualified ABS plate to obtain an appearance qualified ABS plate weight parameter, analyzing the appearance qualified ABS plate weight parameter, and evaluating the appearance qualified ABS plate with the weight parameter maintained within a preset range as the weight qualified ABS plate;

Obtaining stretching equipment, placing the weight-qualified ABS plate in the stretching equipment, and searching the maximum stretching rate of the weight-qualified ABS plate in a big data network, and calibrating the maximum stretching rate as a test stretching rate;

Presetting standard stretching force, controlling the stretching equipment to stretch the weight-qualified ABS plate based on the standard stretching force and the test stretching rate;

Recording the elongation of the weight-qualified ABS plate under the standard tensile strength and the test tensile rate, and drawing a stress-strain curve of the weight-qualified ABS plate based on the elongation of the weight-qualified ABS plate under the standard tensile strength and the test tensile rate;

Analyzing the stress-strain curve of the weight-qualified ABS plate to obtain the slope change rate of the stress-strain curve of the weight-qualified ABS plate, presetting the maximum slope change rate, if the slope change rate of the stress-strain curve of the weight-qualified ABS plate is smaller than the maximum slope change rate, evaluating the corresponding weight-qualified ABS plate as a tensile strength-qualified ABS plate, and evaluating the weight-qualified ABS plate with the slope change rate of the stress-strain curve smaller than the maximum slope change rate as a tensile strength-unqualified ABS plate.

Further, in a preferred embodiment of the present invention, the frequency of occurrence of the ABS sheet with unqualified tensile strength is analyzed, and if the frequency of occurrence of the ABS sheet with unqualified tensile strength is higher than a preset value, the processing procedure of the ABS sheet with unqualified tensile strength needs to be optimized, which specifically includes:

Based on various processing procedures of the target ABS plate, the processing procedures for punching the target ABS plate are acquired and calibrated as punching processing procedures;

Calculating the occurrence frequency of the ABS plates with unqualified tensile strength in all the ABS plates with qualified weight, and if the occurrence frequency of the ABS plates with unqualified tensile strength is smaller than a preset value, calibrating the stamping working procedure as a qualified stamping working procedure;

If the occurrence frequency of the ABS plate with unqualified tensile strength is larger than a preset value, marking the stamping working procedure as an unqualified stamping working procedure, marking a part of the ABS plate processing equipment for controlling the stamping working procedure to work as a stamping part, and acquiring working parameters of the unqualified stamping working procedure;

acquiring the power of the stamping part in the working process of the disqualified stamping working procedure based on the working parameters of the disqualified stamping working procedure, and acquiring the electric element composition structure of the stamping part if the power of the stamping part in the working process of the disqualified stamping working procedure is not within a preset threshold;

Acquiring a universal meter, and analyzing working current of an electric element composition structure of the stamping part based on the universal meter to obtain an abnormal working current electric element of the stamping part;

And searching and outputting an optimized scheme of the abnormal working current electric element of the stamping part in the big data network, so that the power of the stamping part in the working process of the unqualified stamping working procedure is maintained within a preset threshold value, and the qualified stamping working procedure is obtained.

The second aspect of the present invention also provides a quality evaluation system of an ABS panel, the quality evaluation system comprising a memory and a processor, the memory storing a quality evaluation method, the quality evaluation method when executed by the processor implementing the steps of:

The invention solves the technical defects in the background technology, and has the following beneficial effects: performing appearance preliminary evaluation on the ABS plate, including chromatic aberration evaluation and surface flatness evaluation, to obtain a standard-qualified ABS plate, performing appearance defect evaluation and appearance defect correction on the standard-qualified ABS plate, and performing analysis optimization on the processing procedure of the ABS plate in the appearance defect evaluation process; and after the appearance qualified ABS plate is obtained, carrying out weight evaluation and tensile strength evaluation on the appearance qualified ABS plate, obtaining the tensile strength qualified ABS plate based on an evaluation result, and finally judging the occurrence frequency of the tensile strength ABS plate, and optimizing the processing procedure if the occurrence frequency is lower. According to the invention, the quality evaluation can be carried out on the ABS plate, and meanwhile, the processing procedures of the ABS plate and the ABS plate are respectively corrected and optimized based on the quality evaluation result, so that potential safety hazards and reliability problems of the ABS plate after processing are avoided.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other embodiments of the drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a flow chart of a method of quality assessment of an ABS panel;

FIG. 2 is a flow chart of a method for performing appearance defect assessment and modification of an appearance process for a specification-acceptable ABS sheet;

fig. 3 shows a program view of a quality evaluation system of an ABS panel.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

FIG. 1 shows a quality assessment method of an ABS plate, comprising the steps of:

s102: sequentially carrying out color difference evaluation and surface inclination angle evaluation on the ABS plate, and screening to obtain an ABS plate with qualified specification based on a color difference evaluation result and a surface inclination angle evaluation result;

S104: performing appearance defect evaluation on the standard-qualified ABS plate, and if the standard-qualified ABS plate with unqualified appearance defect evaluation appears, performing processing procedure analysis and correction on the standard-qualified ABS plate, and screening to obtain the standard-qualified ABS plate based on the appearance defect evaluation result;

S106: sequentially carrying out weight evaluation and tensile strength evaluation on the appearance qualified ABS plate, and obtaining the tensile strength qualified ABS plate based on the evaluation result;

S108: analyzing the occurrence frequency of the unqualified ABS plate with the tensile strength, and if the occurrence frequency of the unqualified ABS plate with the tensile strength is higher than a preset value, optimizing the processing procedure of the unqualified ABS plate with the tensile strength.

Before the ABS board is processed and put into use, quality evaluation is required to determine whether the quality of the ABS board is acceptable, thereby ensuring safety, durability and aesthetic property of the ABS board in use. After the ABS plate is machined, the problem of uneven coloring possibly exists due to machining equipment, or the problem that the ABS plate material is unqualified and the like possibly causes different colors at different positions on the ABS plate, so that the color difference at different positions of the ABS plate is overlarge, the appearance of the ABS plate is attractive and influenced, and the color difference at different positions of the ABS plate needs to be evaluated. A cosine measurement algorithm can be introduced to carry out color difference evaluation, so that a color difference qualified ABS plate is obtained. The processed ABS board may have uneven surface due to the deviation of the parameters of the processing equipment, so it is necessary to determine whether the surface of the ABS board is flat or not and process the uneven ABS board. Whether the surface of the color difference qualified ABS plate is smooth or not can be analyzed by calculating the surface inclination angle of the color difference qualified ABS plate, and if the surface inclination angle is larger than a preset value, the color difference qualified ABS plate needs grinding treatment to be performed, so that the surface of the color difference qualified ABS plate is smooth. Meanwhile, it should be noted that the specification parameters of the ABS board after grinding treatment become smaller correspondingly, and there may be a situation that the specification parameters are inconsistent with the standard parameters, and the similarity of the specification parameters and the standard values of the ABS board after grinding treatment can be judged by calculating the euclidean distance between the specification parameters and the standard values, if the euclidean distance is too large, the similarity is proved to be lower, so that it is proved that the specification parameters of the ABS board after grinding treatment are abnormal and scrapped and cannot be repaired, and the ABS board needs to be scrapped. And if the Euclidean distance between the standard values of the specification parameters of the ground ABS plate is smaller than the preset value, the final-treatment ABS plate is qualified and calibrated as the standard qualified ABS plate.

After the appearance of the ABS sheet is acceptable, the physical properties of the ABS sheet, which are tensile properties of the ABS sheet acceptable in appearance, need to be evaluated. If the tensile property of the ABS plate is not qualified, the ABS plate may be broken and dangerous due to uneven stress or impact in the process of using the ABS plate. Before the tensile performance test is performed on the ABS plate, the weight of the ABS plate is required to be measured, and the inside of the ABS plate with unqualified weight may have a hollow condition, because the stamping effect is poor in the processing process of the ABS plate, so that the ABS plate with unqualified weight is required to be abandoned, and the ABS plate with qualified weight is obtained. The tensile property of the weight-qualified ABS plate is detected, the testing tensile rate is required to be determined according to the maximum tensile rate of the weight-qualified ABS plate, and the purpose is that the tensile property of the weight-qualified ABS plate can be more intuitively and efficiently obtained by carrying out the tensile property test under the maximum tensile rate. Meanwhile, standard stretching force needs to be determined, so that the ABS plate is not directly broken in the stretching process. After the weight-qualified ABS plate is stretched, the weight-qualified ABS plate is correspondingly lengthened, the elongation is obtained, and a stress-strain curve of the weight-qualified ABS plate is drawn based on the elongation. The stress-strain curve of the weight-acceptable ABS sheet reflects the linear relationship between elongation and stretch rate and stretch force. The stress-strain curve of the weight-qualified ABS plate is in linear continuous change under normal conditions, and whether the stress-strain curve of the weight-qualified ABS plate is in linear continuous change can be judged from the slope change rate of the stress-strain curve of the weight-qualified ABS plate. If the slope change rate is larger than the preset value, the stress-strain curve of the weight-qualified ABS plate is proved not to change linearly and continuously, namely the weight-qualified ABS plate can be damaged internally, so that the elongation of the weight-qualified ABS plate is larger, and even the weight-qualified ABS plate is broken directly. Weight-acceptable ABS panels having a slope change rate of the stress-strain curve less than the maximum slope change rate were evaluated as tensile strength-acceptable ABS panels. The invention can obtain the ABS plate with qualified tensile strength by carrying out weight measurement and tensile property evaluation on the ABS plate.

The reason why the tensile strength of the ABS sheet is not acceptable makes the punching effect of the processing equipment on the ABS sheet worse, so that it is necessary to perform analysis optimization on the processing process for punching the ABS sheet obtained in the processing equipment, that is, perform analysis optimization on the punching process. If the occurrence frequency of the ABS plates with unqualified tensile strength is smaller than a preset value, the problem of the stamping working procedure is proved, and a large number of ABS plates with unqualified tensile strength are caused. The stamping part is required to be obtained before the stamping process is optimized, because the action point of the stamping process is on the stamping part, the stamping part power abnormality can cause the stamping effect of the stamping part on the ABS plate to be influenced, so that the stamping effect of the ABS plate is reduced, the tensile property of the ABS plate is disqualified, and the stamping effect is one working parameter of the stamping process, so that the working parameter of the stamping process is abnormal due to the abnormal stamping part power. The reason for the abnormality in the power of the punch member may be that the electrical element in the punch member malfunctions, such as a short circuit, a disconnection, or the like, resulting in abnormality in the output operating current and thus in abnormality in the power of the punch member. Therefore, the working current analysis can be carried out on the electric element composition structure of the stamping part through the universal meter, the upgrading optimization is carried out on the electric element with abnormal working current, and finally the qualified stamping working procedure is obtained.

FIG. 2 shows a flow chart of a method for appearance defect assessment and modification of an appearance process for a specification-acceptable ABS sheet, comprising the steps of:

S202: performing laser modeling treatment on the standard-qualified ABS plate, and evaluating appearance defects of the standard-qualified ABS plate, so as to correspondingly obtain an appearance abnormal ABS plate model and an appearance to-be-evaluated ABS plate model based on analysis results;

S204: performing appearance defect repair evaluation on the type of appearance abnormal ABS plate models, and repairing the ABS plates corresponding to the type of appearance abnormal ABS plate models based on evaluation results to obtain appearance qualified ABS plates;

S206: and tracing the appearance defects of the ABS plate to be repaired, and optimizing the processing procedure of the ABS plate based on the tracing result of the appearance defects.

Further, in a preferred embodiment of the present invention, the performing laser modeling processing on the ABS board with qualified specification, and evaluating the appearance defect of the ABS board with qualified specification, and correspondingly obtaining an ABS board model with abnormal appearance and an ABS board model to be evaluated based on the analysis result, specifically:

The appearance abnormal ABS plate model is a three-dimensional model of an ABS plate with cracks, and the crack state of the cracks, including the crack depth and the crack length, can be clearly known through the appearance abnormal ABS plate model. The ABS plate is subjected to crack analysis through the ABS plate model with abnormal appearance, so that the efficiency is higher. Since there may be many cracks, the crack states of different cracks may be different, and if the crack length and depth of the crack are serious, the ABS sheet needs to be scrapped and cannot be repaired. Presetting a dangerous crack state, scrapping an ABS plate corresponding to the type of the appearance abnormal ABS plate model if the crack state of the type of the appearance abnormal ABS plate model is larger than the dangerous crack state, and conversely, repairing the ABS plate corresponding to the type of the appearance abnormal ABS plate model if the crack state of the type of the appearance abnormal ABS plate model is smaller than the dangerous crack state. And (3) marking the ABS plate with the repairable crack and the ABS plate model corresponding to the appearance to-be-evaluated ABS plate model as an appearance defect to-be-repaired ABS plate, wherein the appearance defect to-be-repaired ABS plate may have abnormal surface edge flatness, namely burrs may exist on the edge of the ABS plate, and the edge of the ABS plate is not smooth and flat. Therefore, the surface edge flatness abnormality repairing method and the surface crack repairing method need to be searched and output to the ABS plate with the appearance defect to be repaired, so that the appearance qualified ABS plate is obtained. According to the invention, whether the appearance of the ABS plate has defects can be analyzed by constructing a model, and the appearance defects are corrected and optimized to obtain the appearance qualified ABS plate.

The ABS plate processing equipment is used for processing the ABS plate, and different processing procedures are adopted for processing the ABS plate, and processing operations corresponding to the different processing procedures are different. And acquiring a working procedure for processing the appearance, namely an appearance processing working procedure, and acquiring processing parameters and standard processing parameters of the appearance processing working procedure. The processing procedure for causing the appearance defect of the ABS plate can have a plurality of procedures or one procedure, and if the number of the appearance processing procedures is 1, the processing procedure for proving the appearance defect of the ABS plate is one, so that the processing parameters of the appearance processing procedure can be directly output for parameter correction. If the number of the appearance machining processes is not 1, it is proved that a plurality of machining processes for causing the appearance defects of the ABS plate can exist, and the machining processes for causing the appearance defects of the ABS plate need to be positioned in all the appearance machining processes. The Euclidean distance between the processing parameters of all the appearance processing procedures and the corresponding standard processing parameters can be calculated to determine the similarity between the processing parameters of the appearance processing procedures and the standard values, and the Euclidean distance is larger, namely the similarity is smaller, namely the processing parameters of the corresponding appearance processing procedures are proved to be abnormal. And after the abnormal appearance machining process is obtained, extracting corresponding standard machining parameters for parameter correction, and obtaining the optimized appearance machining process.

In addition, the quality evaluation method of the ABS plate further comprises the following steps:

if the power of the stamping part is still not maintained within the preset threshold after the optimization scheme of the abnormal working current electrical element of the stamping part is output, the optimized stamping part is marked as a preliminary optimized stamping part;

Acquiring the historical working temperature of the primary stamping part, searching the dangerous working temperature of the primary stamping part based on a big data network, and judging whether the historical working temperature of the primary stamping part is larger than the dangerous working temperature;

if the historical working temperature of the primary stamping part is not greater than the dangerous working temperature, working parameters of the primary stamping part are obtained, a Bayesian network algorithm is introduced to analyze the working parameters of the primary stamping part to obtain a failure element of the primary stamping part, and a correction method of the failure element of the primary stamping part is searched in a big data network to output, so that the power of the primary stamping part in the working process of the unqualified stamping working procedure is maintained within a preset threshold;

If the historical working temperature of the primary stamping part is larger than the dangerous working temperature, acquiring a time period when the historical working temperature of the primary stamping part is larger than the dangerous working temperature, marking the time period as an abnormal working temperature time period, acquiring a processing procedure executed by the primary stamping part in the abnormal working temperature time period, and calibrating the processing procedure as a processing procedure to be optimized;

Searching a scheme for maintaining the working temperature of the primary stamping part to be smaller than the dangerous working temperature in a big data network, calibrating the scheme as a working temperature balancing scheme, and outputting the working temperature balancing scheme to the primary stamping part when the working procedure to be optimized is executed.

If the power of the punching member is still not maintained within the preset threshold after the output of the optimized scheme of the abnormal electric element of the working current of the punching member, it is proved that the abnormality of the power of the punching member is not related to the abnormality of the electric element, which may be other reasons. Therefore, continuous analysis is needed, whether the historical working temperature is abnormal or not is needed to be judged, if the historical working temperature is not abnormal, the fact that the stamping part is faulty is judged, the stamping part is directly damaged and does not work, the working parameters of the stamping part are analyzed through a Bayesian network, the faulty part can be positioned, and meanwhile the faulty part is needed to be repaired. The power of the stamping part in the working process of the disqualified stamping working procedure is maintained within a preset threshold value. If the historical operating temperature is abnormal, i.e. the stamping part is overheated, the stamping part is damaged, and the power is reduced. In this case, the punched part needs to be optimized in order to keep it from overheating during the working time. The time that the punched part is overheated may not be continuous, because there may be some processes leading to overheating, so it is necessary to determine the time of overheating and to determine the working process within the overheating time, in order to accurately retrieve the corresponding scheme that maintains the working temperature of the preliminary punched part below the dangerous working temperature.

Marking the waste ABS plate after grinding treatment as an ABS plate with a preliminarily unqualified specification, acquiring all order information of the ABS plate, and acquiring all specification parameters of the ABS plate based on all order information of the ABS plate;

acquiring specification parameters of the primarily unqualified ABS plate, and calculating whether the specification parameters of the primarily unqualified ABS plate are smaller than all the specification parameters of the ABS plate based on the Euclidean distance method;

If yes, performing secondary discarding treatment on the primarily unqualified ABS plates, otherwise, acquiring target numbers of the ABS plates with different specification parameters, and acquiring real-time numbers of the ABS plates with different specification parameters;

If the real-time quantity of the ABS plates with all specification parameters is not less than the target quantity, performing secondary discarding treatment on the ABS plates with the preliminarily unqualified specifications;

If the real-time number of the ABS plates with any specification parameters is smaller than the target number, the corresponding specification parameters are calibrated into one type of specification parameters, and secondary grinding treatment is carried out on the primarily unqualified ABS plates, so that the specification parameters of the primarily unqualified ABS plates are equal to the one type of specification parameters, and the secondary ground ABS plates are obtained;

and monitoring the number of the ABS plates with the specification parameters being one type of specification parameters in real time, and stopping performing secondary grinding treatment on the ABS plates with the preliminarily unqualified specifications when the number of the ABS plates with the monitored specification parameters being one type of specification parameters is not smaller than the target number.

In order to save resources and improve the utilization rate of the ABS plate, the waste ABS plate is subjected to specification analysis, and whether the ABS plate can be subjected to secondary grinding is judged, so that the ABS plate with other specification parameters is obtained. And obtaining the specification parameters of all requirements from the order information, and if the specification parameters of the discarded ABS plates are smaller than the specification parameters of all requirements, proving that the ABS plates cannot be corrected and are directly discarded. If the specification parameters of the abandoned ABS plates are larger than all the required specification parameters, the abandoned ABS plates can be changed into the ABS plates with other specification parameters through grinding. Before grinding, whether the number of the current ABS plates reaches a preset value or not needs to be judged, if yes, grinding can not be performed, if not, grinding can be performed, the number is monitored in real time in the grinding process, and the number reaches the upper limit and needs to be stopped, so that idle work is prevented, and resources are wasted.

As shown in fig. 3, the second aspect of the present invention further provides a quality evaluation system of an ABS board, the quality evaluation system includes a memory 31 and a processor 32, the memory 31 stores a quality evaluation method, and when the quality evaluation method is executed by the processor 32, the following steps are implemented:

The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims

1. The quality evaluation method of the ABS plate is characterized by comprising the following steps of:

Analyzing the occurrence frequency of the unqualified ABS plate with the tensile strength, and if the occurrence frequency of the unqualified ABS plate with the tensile strength is higher than a preset value, optimizing the processing procedure of the unqualified ABS plate with the tensile strength;

The method comprises the steps of sequentially carrying out color difference evaluation and surface inclination angle evaluation on an ABS plate, and screening to obtain an ABS plate with qualified specification based on a color difference evaluation result and a surface inclination angle evaluation result, wherein the specific steps are as follows:

Acquiring specification parameters of the grinding ABS plate, calculating Euclidean distance between the specification parameters of the grinding ABS plate and standard specification parameters of the target ABS plate, calibrating the Euclidean distance as a first Euclidean distance, if the first Euclidean distance is larger than a preset value, evaluating the grinding ABS plate as a specification qualified ABS plate, and discarding the corresponding grinding ABS plate with the first Euclidean distance smaller than the preset value;

The method comprises the steps of carrying out appearance defect evaluation on a specification-qualified ABS plate, carrying out processing procedure analysis and correction on the specification-qualified ABS plate if the specification-qualified ABS plate with unqualified appearance defect evaluation appears, and screening to obtain the appearance-qualified ABS plate based on an appearance defect evaluation result, wherein the specific steps are as follows:

Searching a surface edge flatness abnormal repair method and a surface crack repair method in a big data network, and outputting the surface edge flatness abnormal repair method and the surface crack repair method to an ABS plate with appearance defects to be repaired to obtain an appearance qualified ABS plate;

The weight evaluation and the tensile strength evaluation are sequentially carried out on the appearance qualified ABS plate, and the tensile strength qualified ABS plate is obtained based on the evaluation result, specifically:

Analyzing a stress-strain curve of the weight-qualified ABS plate to obtain a slope change rate of the stress-strain curve of the weight-qualified ABS plate, presetting a maximum slope change rate, if the slope change rate of the stress-strain curve of the weight-qualified ABS plate is smaller than the maximum slope change rate, evaluating the corresponding weight-qualified ABS plate as a tensile strength-qualified ABS plate, and evaluating the weight-qualified ABS plate with the slope change rate of the stress-strain curve smaller than the maximum slope change rate as a tensile strength-unqualified ABS plate;

The method comprises the steps of analyzing the occurrence frequency of the ABS plate with unqualified tensile strength, and if the occurrence frequency of the ABS plate with unqualified tensile strength is higher than a preset value, optimizing the processing procedure of the ABS plate with unqualified tensile strength, wherein the method specifically comprises the following steps:

2. The method for evaluating the quality of an ABS panel according to claim 1, wherein the performing of appearance defect tracing on the ABS panel to be repaired and optimizing the processing procedure of the ABS panel based on the appearance defect tracing result is specifically:

3. A quality evaluation system of an ABS panel, wherein the quality evaluation system comprises a memory and a processor, wherein the memory stores a program of a quality evaluation method, and wherein the program of the quality evaluation method, when executed by the processor, implements the steps of: