A method and system for the press forming of aluminium foil containers

Abstract

The application discloses a stamping forming machining method and system of an aluminum foil lunch box, and relates to the technical field of intelligent control.The method comprises the following steps: dividing a process node of a machining process of the aluminum foil lunch box, and generating a target control link; calling a first link node to perform machining control, obtaining first control data, performing node control evaluation, obtaining first evaluation features, and calibrating synchronous braking parameters of a second link node if the first evaluation features are different; traversing the target control link, performing control evaluation of an upper link node and control optimization of a lower link node in a link-by-link manner, and realizing adaptive flexible machining regulation and control.The application solves the technical problem of low machining precision and poor product quality caused by errors of stamping forming machining equipment of the aluminum foil lunch box in the prior art, and achieves the technical effect of improving machining precision and product quality by calibrating errors of stamping forming machining equipment of the aluminum foil lunch box.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of intelligent control, and particularly relates to a stamping forming machining method and system for an aluminum foil lunch box. BACKGROUND

[0002] The aluminum foil lunch box is widely used in the food industry due to its environmental protection, safety and recyclable characteristics. The manufacturing process mainly includes material selection, stamping forming, hot forming and compounding. The stamping process is one of the most critical links in the manufacturing of the aluminum foil lunch box. The stamping process using the mechanical machining method can improve the production efficiency and reduce the production cost. However, the machining precision is not enough due to the equipment error of the machining equipment. SUMMARY

[0003] The application provides a stamping forming machining method and system for an aluminum foil lunch box, which is used to solve the technical problem of low machining precision and poor product quality caused by the error of the stamping forming machining equipment for the aluminum foil lunch box in the prior art.

[0004] In a first aspect, the application provides a stamping forming machining method for an aluminum foil lunch box, which comprises the following steps: determining a machining process based on the production specification of a batch of aluminum foil lunch boxes; dividing a process node for the machining process to generate a target control link, wherein each link node is marked with a synchronous braking parameter; calling a first link node based on the target control link and combining the marked synchronous braking parameter to perform machining control and obtain first control data; combining a link control analysis module to perform node control evaluation for the first control data and obtain a first evaluation feature, wherein the link control analysis module is embedded with evaluation standards corresponding to the standard machining state of each link node, and each evaluation standard has a tolerance interval; if the first evaluation feature is different, adjusting the synchronous braking parameter of a second link node by combining a braking calibration module to obtain a calibrated braking parameter, wherein the link control analysis module and the braking calibration module are communicatively connected; and traversing the target control link to perform control evaluation of an upper link node and control optimization of a lower link node for each link node to realize adaptive flexible machining regulation.

[0005] In a second aspect of the present application, a stamping forming machining system of an aluminum foil lunch box is provided, and the system comprises: a machining process determination module, configured to determine a machining process based on production specifications of a batch of aluminum foil lunch boxes; a target control link generation module, configured to generate a target control link by dividing process nodes for the machining process, wherein each link node is marked with a synchronous braking parameter; a first control data acquisition module, configured to acquire first control data by calling a first link node and combining the marked synchronous braking parameter for machining control based on the target control link; a first evaluation feature acquisition module, configured to acquire first evaluation features by combining a link control analysis module for node control evaluation for the first control data, wherein evaluation standards corresponding to the specification machining state of each link node are embedded in the link control analysis module, and each evaluation standard has a tolerance interval; a calibration braking parameter acquisition module, configured to adjust the synchronous braking parameter of a second link node by combining a braking calibration module to acquire calibration braking parameters if the first evaluation features are abnormal, wherein the link control analysis module and the braking calibration module are communicatively connected; and an adaptive flexible machining regulation and control module, configured to traverse the target control link, perform control evaluation of an upper link node and control optimization of a lower link node for each link node, and realize adaptive flexible machining regulation and control.

[0006] One or more technical solutions provided in the present application have at least the following technical effects or advantages:

[0007] The stamping forming machining method of the aluminum foil lunch box provided in the present application relates to the field of intelligent control technology. The machining process of the aluminum foil lunch box is divided into process nodes to generate a target control link, a first link node is called for machining control, and node control evaluation is performed to acquire first evaluation features. If the first evaluation features are abnormal, error calibration is performed by calibrating the synchronous braking parameter of a second link node. This process is repeated to traverse the target control link, perform control evaluation of an upper link node and control optimization of a lower link node for each link node, and realize adaptive flexible machining regulation and control. The technical problem of low machining precision and poor product quality caused by errors in the stamping forming machining equipment of the aluminum foil lunch box in the prior art is solved, and the technical effect of improving machining precision and product quality by calibrating errors in the stamping forming machining equipment of the aluminum foil lunch box is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on these drawings.

[0009] Figure 1 A flowchart of a stamping forming machining method of an aluminum foil lunch box provided by the embodiment of the present application;

[0010] Figure 2 A flowchart of node control evaluation by combining a link control analysis module in a stamping forming machining method of an aluminum foil lunch box provided by the embodiment of the present application;

[0011] Figure 3 A flowchart of obtaining calibration braking parameters in a stamping forming machining method of an aluminum foil lunch box provided by the embodiment of the present application;

[0012] Figure 4 A structure schematic diagram of a stamping forming machining system of an aluminum foil lunch box provided by the embodiment of the present application.

[0013] Legend of the drawings: machining flow determination module 11, target control link generation module 12, first control data acquisition module 13, first evaluation feature acquisition module 14, calibration braking parameter acquisition module 15, adaptive flexible machining regulation and control module 16. DETAILED DESCRIPTION

[0014] The present application provides a stamping forming machining method of an aluminum foil lunch box, which is used to solve the technical problem of low machining precision and poor product quality caused by the error of the stamping forming machining equipment of the aluminum foil lunch box in the prior art.

[0015] The technical solutions in the embodiments of the present application will be described clearly and completely by combining the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0016] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and in the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or server including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or modules not clearly listed or inherent to these processes, methods, products or devices.

[0017] Embodiment one

[0018] As Figure 1 shown, the present application provides a stamping forming machining method of an aluminum foil lunch box, the method comprising:

[0019] P10: determining a machining process based on the production specification of the batch of aluminum foil lunch boxes;

[0020] Specifically, the production specification of the current batch of aluminum foil lunch boxes is obtained, including the geometric shape, alloy state, thickness, size, etc. of the aluminum foil lunch box, and based on the production specification, the machining process of the current batch of aluminum foil lunch boxes is determined, which refers to the mechanical machining production process of the aluminum foil lunch box, including aluminum foil material preparation, material hardening treatment, cutting, forming, demolding, cooling, trimming, cleaning, quality inspection, etc. It can be used as reference data for subsequent process node segmentation.

[0021] P20: process node segmentation is performed for the machining process to generate a target control link, wherein each link node is identified with a synchronous braking parameter;

[0022] It should be understood that according to the machining process, the machining process is segmented by process node segmentation to obtain a plurality of segmented process nodes, the plurality of segmented process nodes are arranged in order to generate a target control link, the target control link has a plurality of link nodes corresponding to the plurality of segmented process nodes, and each link node is identified with a synchronous braking parameter, the synchronous braking parameter refers to the parameter of braking at the same time, such as feeding, the feeding mechanical arm and the feeding port are braked at the same time. The target control link can be used to relatively control the process nodes of the production process, and by optimizing the synchronous braking parameters of each node, the accuracy of the data exchanged between each process link is improved, so as to achieve the purpose of optimizing the overall process flow.

[0023] Further, the step P20 of the embodiment of the present application further comprises:

[0024] P21: retrieve pre-machining control parameters, i.e., pre-set hard machining control parameters;

[0025] P22: divide the machining process by process node, sequentially connect the division nodes to generate the target control link;

[0026] P23: traverse the target control link, synchronize mapping and timing control division with the hard machining control parameters, and obtain the synchronization braking parameters corresponding to each link node.

[0027] Among them, the pre-machining control parameters of the machining process are retrieved, and the pre-machining control parameters are pre-set hard machining control parameters according to the production specification of the current batch of aluminum foil lunch box and the production experience value, such as stamping force, stamping frequency, etc. Further, the process nodes of the machining process are divided one by one to obtain a plurality of division nodes, and the plurality of division nodes are sequentially connected according to the machining process to generate the target control link. Finally, traverse each link node of the target control link, match the corresponding hard machining control parameters for each link node, and perform control parameter division according to the order of control time to obtain the synchronization braking parameters corresponding to each link node.

[0028] P30: based on the target control link, call the first link node and combine the identified synchronization braking parameters for machining control to obtain first control data;

[0029] Optionally, a link node is randomly called from the target control link as the first link node, and the mechanical machining control is performed in combination with the synchronization braking parameters corresponding to the first link node, and the actual change value of each braking parameter in the machining control process is extracted, such as the actual stamping force of the pressing equipment in the pressing process, the actual moving distance in the feeding process, etc., which is used as the first control data. The first control data is the actual parameter response value of the equipment, which can be compared with the expected parameter change value in the future to judge the accuracy of the control parameters of the stamping forming equipment, and then eliminate the equipment error.

[0030] P40: for the first control data, node control evaluation is performed in combination with a link control analysis module to obtain first evaluation features, and the link control analysis module has embedded evaluation standards corresponding to the standard processing state of each link node, and each evaluation standard has a tolerance interval;

[0031] For example, for the first control data, a link control analysis module is used to evaluate its node control and obtain a first evaluation feature. This link control analysis module is used to evaluate the accuracy of the control data of each link node in the stamping equipment. It contains embedded evaluation standards for each link node under standard processing conditions. These evaluation standards refer to the standard transformation values ​​of each control parameter under standard operating conditions. For example, when the pressurization command is 40 tons, the actual pressurization value of the pressurizing equipment should also be 40 tons. Each evaluation standard has a tolerance range, which refers to the allowable range of control parameter error. The first evaluation feature refers to the evaluation result of the actual control data of the first link node, including pressure control evaluation results, displacement control evaluation results, etc., which can reflect the accuracy of the control data of the first link.

[0032] Furthermore, such as Figure 2 As shown, step P40 in this embodiment further includes:

[0033] P41: For the multi-control components of the stamping forming machine, perform a machining degree of freedom assessment and determine the degree of freedom coefficients;

[0034] P42: Evaluate the eccentricity angle and eccentricity size for the control efficiency of aluminum foil materials, and determine the eccentricity coefficient;

[0035] P43: For stamping dies and aluminum foil materials, evaluate the sheet flow rate and radial tensile stress to generate stamping control coefficients;

[0036] P44: Traverse the target control link, map and associate each link node with the evaluation index to determine multiple association sequences, and build the link control analysis module.

[0037] Specifically, the machining degrees of freedom of the multi-control components of the stamping forming machine are evaluated. The stamping forming machine is a mechanical processing device used to stamp aluminum foil food boxes, and includes multiple stamping control components, i.e., multi-control components, such as pressure components and transmission components. For the multi-control components of the stamping forming machine, an adaptive evaluation and analysis is performed across multiple dimensions of control at each link node, including the degrees of freedom dimension, material eccentricity dimension, and stamping control dimension.

[0038] Firstly, the freedom degree of each component is evaluated, which refers to the parameter adjustment range of each component. The actual freedom degree of each component is judged by evaluating the actual control data, and the difference between the actual freedom degree and the standard freedom degree is calculated. According to the size of the difference value, the corresponding freedom coefficient is generated. For example, the larger the difference value is, the larger the corresponding freedom coefficient is. Similarly, the eccentric angle and the eccentric size of the control efficiency of the aluminum foil material are evaluated, that is, the deviation between the actual moving position of the material and the standard moving position is calculated, and the eccentricity coefficient is generated. Further, the sheet flow speed and the radial tensile stress of the stamping die assembly and the aluminum foil material are evaluated to determine whether the sheet flow speed matches the radial tensile stress and whether the desired sheet flow speed and sheet size are achieved, and a stamping control coefficient is generated accordingly.

[0039] Further, each link node of the target control link is traversed, each link is mapped and associated with the corresponding evaluation index, a plurality of association sequences are obtained, and the link control analysis module is built based on the plurality of association sequences.

[0040] Further, the step P41 of the embodiment of the present application further includes:

[0041] P41-1: The multi-element control assembly includes a pressure assembly, a feeding assembly and a guide assembly.

[0042] A three-dimensional coordinate system is built with the single freedom degree of the pressure assembly, the feeding assembly and the guide assembly as the coordinate axis.

[0043] P41-2: Based on the link node to be analyzed, at least one single freedom degree threshold is determined, and a freedom degree analysis constraint is set in the three-dimensional coordinate system, wherein the freedom degree analysis constraint has link node updating property.

[0044] It should be understood that the multi-element control assembly includes a pressure assembly, a feeding assembly and a guide assembly. The pressure assembly is mainly used for pressurizing the product to make it form. The feeding assembly is mainly used for conveying aluminum foil material. The guide assembly is a component for direction control, and related transmission assembly. Further, a three-dimensional coordinate system is built with the single freedom degree of the pressure assembly, the feeding assembly and the guide assembly as the coordinate axis. The single freedom degree refers to the parameter adjustment range of each component, such as the adjustment range of the stamping force.

[0045] Further, at least one single-item degree of freedom threshold is determined for each link node to be analyzed, that is, a single-item degree of freedom threshold is determined for each link node, which can be understood as a degree of freedom standard value, and the single-item degree of freedom thresholds of the multiple link nodes may overlap. Further, the single-item degree of freedom threshold is used to set multiple degree of freedom analysis constraints in the three-dimensional coordinate system, that is, multiple standardized coordinate points, and the degree of freedom analysis constraint has link node updating property, that is, different link nodes have different degree of freedom analysis constraints and can be used for degree of freedom evaluation of different link nodes. Subsequently, a coordinate system of different dimensions can be built for each evaluation dimension, and node control analysis can be performed based on the difference between the standardized coordinate point and the actual operation coordinate point.

[0046] P50: If the first evaluation feature is abnormal, adjust the synchronous braking parameter of the second link node by the braking calibration module to obtain a calibrated braking parameter, wherein the braking calibration module is in communication connection with the braking calibration module;

[0047] In a possible embodiment of the present application, if the first evaluation feature is abnormal, that is, the processing control result of the first link node is deviated, the synchronous braking parameter of the second link node is adjusted by the braking calibration module, that is, the braking parameter of the next node of the first link node is adjusted, to obtain the calibrated braking parameter, that is, the synchronous braking parameter of the second link node considering the processing control error of the first link node. The braking calibration module is a module for adjusting and optimizing the synchronous braking parameter of the downstream link through the control evaluation result of the upstream link node. The calibrated braking parameter of the second link node can compensate for the deviation of the processing control result of the first link node, thereby improving the overall control precision and product quality.

[0048] Further, as shown in Figure 3 P50 further includes:

[0049] P51: The first evaluation feature is transferred to the braking calibration module, and the synchronous braking parameter of the second link node is called;

[0050] P52: A calibration scheme is determined based on the first evaluation feature, the synchronous braking parameter of the second link node is calibrated, and the calibrated braking parameter is obtained;

[0051] P53: The braking calibration module includes a difference identification layer, a scheme decision layer, and a parameter calibration layer, and the calibrated braking parameter has single execution property. After the machining control of the second link node is completed, the calibrated braking parameter is reset.

[0052] The first evaluation feature data is input into the brake calibration module, and the synchronous brake parameters of the second link node are called, and then the error of the first evaluation feature and the standard control data is calculated, and then the calibration scheme is determined, and further, the synchronous brake parameters of the second link node are calibrated by the brake calibration module through the calibration scheme to obtain the calibrated brake parameters.

[0053] Further, the brake calibration module comprises a differential identification layer, a scheme decision layer and a parameter calibration layer, the differential identification layer is used to identify the feature difference between the actual evaluation feature and the standard evaluation feature, the scheme decision layer is used to decide the calibration scheme through the feature difference, and the parameter calibration layer is used to calibrate the brake parameters of the next link node through the calibration scheme, and the calibrated brake parameters have single execution, that is, after the machining control of the second link node is completed, the synchronous control parameters of the second link node need to be reset for the next time of use.

[0054] P60: traversing the target control link, performing control evaluation of the upper link node and control tuning of the lower link node for each link node, and realizing adaptive flexible machining regulation.

[0055] Optionally, all link nodes of the target control link are traversed, and the machining state control evaluation of the upper link node is performed on each link node to extract the control error of each link node, and the control error of the upper node is eliminated by performing control tuning on the synchronous brake parameters of the lower link node, so as to realize adaptive flexible machining regulation of the aluminum foil lunch box stamping forming machine, reduce the production error of each machining link, and improve the overall machining precision and product quality.

[0056] Further, the embodiment of the application further comprises a step P70, and the step P70 further comprises:

[0057] P71: performing machining monitoring of the stamping forming machine to determine a machining control state, and the machining control state comprises switching between hard machining control and flexible machining control;

[0058] P72a: in combination with the machining control state, performing frequency statistics of the flexible machining control to calculate and obtain a flexible ratio;

[0059] P73a: if the flexible ratio meets a threshold standard, activating an emergency control module and performing operation and maintenance regulation of the stamping forming machine.

[0060] In a possible embodiment of the present application, the processing state of the punch forming machine is monitored to determine the processing state of the punch forming machine at each process node, and the processing control state includes a hard processing control state and a flexible processing control state. The hard processing control refers to a link node that is controlled based on pre-set synchronous braking parameters, and the flexible processing control is the adaptive flexible processing control of the present application. Further, by the processing control state of each link node, the node using flexible processing control is extracted, and the frequency of flexible processing control is counted based on this, and then the frequency of flexible processing control is divided by the total number of processing nodes to obtain a flexible ratio, that is, the proportion of nodes using flexible processing control in the total number of nodes.

[0061] Further, the flexible ratio is compared with a pre-set flexible ratio threshold value, and the flexible ratio threshold value is a maximum flexible ratio, which is set according to an empirical value, for example, set to 40%. When the flexible ratio meets the threshold standard, that is, the flexible ratio exceeds the flexible ratio threshold value, it indicates that the overall control error of the current device is large, and the proportion of using flexible processing control is too large to increase the processing cost, so the emergency control module needs to be activated. The emergency control module is a module used for emergency braking. The device exception instruction is issued through the emergency control module, and the punch forming machine is operated and maintained to calibrate the device error, improve the device precision and product quality, and reduce the processing cost.

[0062] Further, the embodiment step P70 of the present application further includes:

[0063] P72b: based on the processing control state, identifying and determining the adjacent processing interval duration;

[0064] P73b: calling a plurality of adjacent processing interval durations within a predetermined time to build an interval trend curve, and the plurality of adjacent processing interval durations have a time sequence;

[0065] P74b: identifying the interval trend curve, correcting the interval control standard and determining whether there is an abnormal interval control feature;

[0066] P75b: if there is, activating the emergency control module and performing the operation and maintenance of the punch forming machine.

[0067] Optionally, by extracting the processing control states of multiple different products, the processing interval length of different products is identified and determined, a predetermined time such as three months is set, multiple adjacent processing interval lengths within the predetermined time are intercepted, the multiple adjacent processing interval lengths have a time sequence, and the interval trend curve is drawn using the multiple adjacent processing interval lengths. Further, by identifying the interval length change trend of the interval trend curve, the interval length exceeding the interval control standard is judged by comparing with the interval control standard, whether there is an abnormal interval control feature is determined, if there is, it means that the processing length error of the stamping forming machine is large, and there may be equipment failure, then the emergency control module is activated and the operation and maintenance of the stamping forming machine is regulated.

[0068] In summary, the embodiments of the present application have at least the following technical effects:

[0069] The present application divides the machining process of the aluminum foil lunch box into process nodes to generate a target control link, calls the first link node for machining control, and performs node control evaluation to obtain the first evaluation feature. If the first evaluation feature is abnormal, the error is calibrated by calibrating the synchronization braking parameters of the second link node. In this way, the target control link is traversed, and the control evaluation of the upper link node and the control optimization of the lower link node are performed link by link to realize adaptive flexible machining regulation.

[0070] The technical effect of improving the machining precision and product quality by calibrating the error of the stamping forming machine processing equipment of the aluminum foil lunch box is achieved.

[0071] Embodiment two

[0072] Based on the same inventive concept as the stamping forming machine processing method of one aluminum foil lunch box in the foregoing embodiments, as shown in Figure 4 The present application provides a stamping forming machine processing system for aluminum foil lunch boxes. The system and method embodiments in the present application are based on the same inventive concept. The system comprises:

[0073] A machining process determination module 11 is configured to determine a machining process based on the production specifications of a batch of aluminum foil lunch boxes.

[0074] A target control link generation module 12 is configured to divide the machining process into process nodes to generate a target control link, wherein each link node is identified with a synchronization braking parameter.

[0075] A first control data acquisition module 13 is configured to call the first link node based on the target control link and combine the identified synchronization braking parameter to perform machining control and acquire first control data.

[0076] The first evaluation feature acquisition module 14 is configured to acquire a first evaluation feature by combining a link control analysis module for the first control data, wherein the link control analysis module is embedded with evaluation standards corresponding to the specification processing state of each link node, and each evaluation standard has a tolerance interval.

[0077] The calibration braking parameter acquisition module 15 is configured to adjust the synchronous braking parameter of the second link node to acquire a calibration braking parameter if the first evaluation feature is abnormal, wherein the link control analysis module and the braking calibration module are in communication connection.

[0078] The adaptive flexible processing regulation module 16 is configured to traverse the target control link to perform control evaluation of the upper link node and control optimization of the lower link node for each link node, so as to realize adaptive flexible processing regulation.

[0079] Further, the target control link generation module 12 is further configured to perform the following steps:

[0080] The pre-processing control parameter, i.e., the pre-set hard processing control parameter, is called.

[0081] The machining process is divided for each process node, the divided nodes are sequentially connected, and the target control link is generated.

[0082] The target control link is traversed, and the synchronous braking parameter corresponding to each link node is acquired by synchronous mapping and timing control division of the hard processing control parameter.

[0083] Further, the first evaluation feature acquisition module 14 is further configured to perform the following steps:

[0084] The freedom degree of the machining is evaluated for the multi-element control assembly of the punch forming machine, and a freedom degree coefficient is determined.

[0085] The eccentric angle and the eccentric size are evaluated for the control energy efficiency of the aluminum foil material, and an eccentricity coefficient is determined.

[0086] The sheet flow speed and the radial tensile stress are evaluated for the punch module and the aluminum foil material, and a punch control coefficient is generated.

[0087] The target control link is traversed, a plurality of associated sequences are determined by mapping and associating each link node and the evaluation index, and the link control analysis module is built.

[0088] Further, the first evaluation feature acquisition module 14 is further configured to perform the following steps:

[0089] The multi-element control assembly includes a pressure assembly, a feeding assembly, and a guide assembly;

[0090] A three-dimensional coordinate system is built with the single-degree-of-freedom of the pressure assembly, the feeding assembly, and the guide assembly as the coordinate axes.

[0091] At least one single-degree-of-freedom threshold is determined based on the link node to be analyzed, and a degree-of-freedom analysis constraint is set in the three-dimensional coordinate system, wherein the degree-of-freedom analysis constraint has link node updating property.

[0092] Further, the calibration brake parameter acquisition module 15 is further used to execute the following steps:

[0093] The first evaluation feature flow is transferred to the brake calibration module, and the synchronous brake parameter of the second link node is called.

[0094] A calibration scheme is determined based on the first evaluation feature, the calibration of the synchronous brake parameter of the second link node is performed, and the calibration brake parameter is acquired.

[0095] The brake calibration module includes a differentiation identification layer, a scheme decision layer, and a parameter calibration layer, the calibration brake parameter has single execution property, and the calibration brake parameter is controlled to reset after the machining control of the second link node is completed.

[0096] Further, the system further includes:

[0097] A machining control state determination module is used to execute machining monitoring of the punch forming machine, determine machining control state, and the machining control state includes switching of hard machining control and flexible machining control.

[0098] A flexible ratio acquisition module is used to combine the machining control state, perform frequency statistics of flexible machining control, and calculate and acquire a flexible ratio.

[0099] A first operation and maintenance control module is used to activate an emergency control module and perform operation and maintenance control of the punch forming machine if the flexible ratio meets threshold standard.

[0100] Further, the system further includes:

[0101] A neighborhood machining interval duration determination module is used to identify and determine neighborhood machining interval duration based on the machining control state.

[0102] a gap trend curve building module, configured to call a plurality of neighborhood processing gap durations in a predetermined time, build a gap trend curve, and the plurality of neighborhood processing gap durations have a time sequence;

[0103] an abnormal interval control feature judging module, configured to identify the gap trend curve, correct an interval control standard, and judge whether there is an abnormal interval control feature;

[0104] a second operation and maintenance regulation module, configured to activate an emergency control module and perform operation and maintenance regulation of the stamping forming machine if there is an abnormal interval control feature.

[0105] It should be noted that the above-mentioned sequence of the embodiments of the present application is only for description, and does not represent the advantages and disadvantages of the embodiments. The above-mentioned embodiments of the present application are described. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be executed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multi-task processing and parallel processing are possible or can be advantageous.

[0106] The above-mentioned is only the preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0107] The present application is only an exemplary description of the present application, and is considered to cover any and all modifications, changes, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art can make various modifications and changes to the present application without departing from the scope of the present application. Thus, if these modifications and changes of the present application belong to the scope of the present application and its equivalents, the present application intends to include these modifications and changes.

Claims

1. A press forming machining method of an aluminum foil lunch box, characterized by, The method comprises: determining a machining process based on the production specification of the batch aluminum foil meal box; dividing the process nodes for the machining process to generate a target control link, wherein each link node is identified with a synchronous braking parameter; based on the target control link, calling the first link node and combining the identified synchronous braking parameter for machining control to obtain first control data; for the first control data, combining the link control analysis module for node control evaluation to obtain the first evaluation feature, the link control analysis module has embedded evaluation standards corresponding to the specification machining state of each link node, and each evaluation standard has a tolerance interval; if the first evaluation feature is different, adjust the synchronous braking parameter of the second link node combining the braking calibration module to obtain the calibration braking parameter, wherein the link control analysis module and the braking calibration module are communicatively connected; traverse the target control link, and perform control evaluation of the upper link node and control optimization of the lower link node for each link node to realize adaptive flexible machining regulation.

2. The method of claim 1, wherein, The process node division for the machining process to generate the target control link further comprises: retrieve pre-machining control parameters, i.e. pre-set hard machining control parameters; divide the machining process by process node, sequentially connect the divided nodes to generate the target control link; traverse the target control link and perform synchronous mapping and timing control division with the hard machining control parameters to obtain the synchronous braking parameter corresponding to each link node.

3. The method of claim 1, wherein, The node control evaluation combining the link control analysis module further comprises: for the multi-element control assembly of the stamping forming machine, evaluate the degree of freedom of machining to determine the degree of freedom coefficient; for the control energy efficiency of aluminum foil material, evaluate the eccentric angle and eccentric size to determine the eccentricity coefficient; for the stamping die set and aluminum foil material, evaluate the sheet flow speed and radial tensile stress to generate the stamping control coefficient; traverse the target control link, map the associated link nodes and evaluation indexes to determine multiple associated sequences, and build the link control analysis module.

4. The method of claim 3, wherein, The degree of freedom evaluation of machining comprises: The multi-element control assembly includes a pressure assembly, a feeding assembly, and a guide assembly; build a three-dimensional coordinate system with the single degree of freedom of the pressure assembly, the feeding assembly, and the guide assembly as coordinate axes; based on the link node to be analyzed, determine at least one single degree of freedom threshold, and set the degree of freedom analysis constraint in the three-dimensional coordinate system, wherein the degree of freedom analysis constraint has link node updating property.

5. The method of claim 1, wherein, The calibration braking parameter further comprises: flow the first evaluation feature to the braking calibration module and call the synchronous braking parameter of the second link node; based on the first evaluation feature, determine the calibration scheme, calibrate the synchronous braking parameter of the second link node to obtain the calibration braking parameter; The brake calibration module comprises a differentiation identification layer, a scheme decision layer and a parameter calibration layer, the calibration brake parameter has single execution, and the calibration brake parameter is controlled to reset after machining control of the second link node is completed.

6. The method of claim 1, wherein, The method further comprises: Performing machining monitoring of the punch forming machine to determine a machining control state, the machining control state comprising switching between hard machining control and flexible machining control; In combination with the machining control state, the frequency of flexible machining control is counted to calculate a flexible ratio; If the flexible ratio meets a threshold standard, an emergency control module is activated and operation and maintenance regulation of the punch forming machine is performed.

7. The method of claim 6, wherein, The method comprises: Based on the machining control state, adjacent machining interval durations are identified and determined; A plurality of adjacent machining interval durations within a predetermined time are called to build an interval trend curve, the plurality of adjacent machining interval durations having a time sequence; The interval trend curve is identified to correct interval control standards and determine whether there is an abnormal interval control feature; If there is, an emergency control module is activated and operation and maintenance regulation of the punch forming machine is performed.

8. A punch forming machine processing system of an aluminum foil lunch box, characterized by, The system comprises: A machining process determination module for determining a machining process based on the production specifications of the batch aluminum foil lunch box; A target control link generation module for generating a target control link by dividing the machining process into process nodes, wherein each link node is identified with a synchronous brake parameter; A first control data acquisition module for acquiring first control data by calling a first link node based on the target control link and combining the identified synchronous brake parameter for machining control; A first evaluation feature acquisition module for acquiring a first evaluation feature by combining a link control analysis module for node control evaluation for the first control data, wherein the link control analysis module has embedded evaluation standards corresponding to the specification machining state of each link node, and each evaluation standard has a tolerance interval; A calibration brake parameter acquisition module for adjusting the synchronous brake parameter of a second link node by combining a brake calibration module to acquire a calibration brake parameter if the first evaluation feature is different, wherein the link control analysis module and the brake calibration module are communicatively connected; An adaptive flexible machining regulation module for traversing the target control link to perform control evaluation of an upper link node and control optimization of a lower link node for each link node to realize adaptive flexible machining regulation.

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