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CN-121979108-A - Sheet metal processing monitoring regulation and control system

CN121979108ACN 121979108 ACN121979108 ACN 121979108ACN-121979108-A

Abstract

The invention discloses a sheet metal machining monitoring and regulating system, which belongs to the field of sheet metal machining control and comprises a standard model construction module, a machining equipment configuration module, a sheet metal machining module, an actual measurement model construction module, a model registration module and a parameter regulating module, wherein the standard model construction module is used for constructing a standard sheet metal part model based on design data of a target sheet metal part, the machining equipment configuration module is used for obtaining machining control parameters and configuring sheet metal machining equipment, the sheet metal part machining module is used for obtaining machined sheet metal parts and transmitting the machined sheet metal parts to a machining monitoring area, the actual measurement model construction module is used for carrying out three-dimensional data acquisition on the machined sheet metal parts and constructing an actual measurement sheet metal part model, the model registration module is used for registering the standard sheet metal part model and the actual measurement sheet metal part model to obtain a model registration result, and the parameter regulating module is used for obtaining machining errors and regulating the machining control parameters. The processing errors are acquired in real time through model registration comparison, and the processing parameters are regulated and controlled based on the errors, so that the technical effects of improving the processing quality and efficiency of the sheet metal parts are achieved.

Inventors

  • CHEN XULIN

Assignees

  • 南通斯特恩机械科技有限公司

Dates

Publication Date
20260505
Application Date
20251222

Claims (8)

  1. 1. A sheet metal machining monitoring and control system, the system comprising: The standard model construction module is used for determining a target sheet metal part, collecting design data of the target sheet metal part and constructing a standard sheet metal part model based on the design data; The processing equipment configuration module is used for obtaining processing control parameters of the sheet metal processing equipment based on the design data and configuring the sheet metal processing equipment; The sheet metal part machining module is used for performing sheet metal part machining through the machining control parameters, obtaining a machined sheet metal part and conveying the machined sheet metal part to a machining monitoring area; The actual measurement model construction module is used for starting a machining monitoring device in a machining monitoring area, carrying out three-dimensional data acquisition on the machined sheet metal part, and constructing an actual measurement sheet metal part model based on a data acquisition result; The model registration module is used for registering the standard sheet metal part model and the actually measured sheet metal part model to obtain a model registration result; And the parameter regulation and control module is used for acquiring the machining error of the machined sheet metal part according to the model registration result and regulating and controlling the machining control parameter based on the machining error.
  2. 2. The system of claim 1, wherein the process equipment configuration module performs steps comprising: determining an original sheet metal part, collecting original parameters of the original sheet metal part, and synchronously extracting design parameters based on the design data; And calling a processing technology database of the sheet metal processing equipment, and inputting the original parameters and the design parameters into the processing technology database to obtain processing control parameters of the sheet metal processing equipment.
  3. 3. The system of claim 2, wherein the execution of the process equipment configuration module further comprises: The method comprises the steps of interacting a historical processing database of the sheet metal processing equipment, and collecting a plurality of historical processing case data, wherein each piece of historical processing case data comprises sheet metal part original data, sheet metal part design data and corresponding sheet metal part processing control data; Processing a plurality of historical processing case data, extracting characteristic parameters of sheet metal part original data, sheet metal part design data and sheet metal part processing control data, and carrying out standardized processing on the characteristic parameters; and constructing an association mapping model among the original parameters, the design parameters and the processing control parameters based on the characteristic parameters of the standardized processing to obtain a processing technology database.
  4. 4. The system of claim 1, wherein the model registration module performs steps comprising: extracting key feature points from the actually measured sheet metal part model to obtain a feature point set to be registered, wherein the feature point set to be registered comprises a plurality of feature points to be registered; Extracting standard characteristic points corresponding to a plurality of characteristic points to be registered from the standard sheet metal part model to obtain a standard characteristic point set; And registering the standard feature point set and the feature point set to be registered by using an ICP algorithm with the pose error between the minimized models as a target, and solving the optimal rigidity transformation parameters to obtain a model registration result.
  5. 5. The system of claim 1, wherein the model registration module performs steps comprising: selecting a plurality of registration datum points based on the standard sheet metal part model, wherein the registration datum points have a first space constraint relation; performing reference point inquiry on the actually measured sheet metal part model according to the plurality of registration reference points to obtain a plurality of actually measured reference points; judging whether the measured datum points meet the first space constraint relation or not, and acquiring a model registration result when the measured datum points meet the space constraint relation.
  6. 6. The system of claim 5, wherein the model registration module performs steps further comprising: When the measured datum points meet the first space constraint relation, randomly selecting a plurality of additional registration datum points again in the standard sheet metal part model, wherein the plurality of additional registration datum points have a second space constraint relation; performing reference point inquiry on the actually measured sheet metal part model according to a plurality of additional registration reference points to obtain a plurality of additional actually measured reference points; Generating an additional authentication result according to the plurality of additional measured datum points and the second space constraint relation, and acquiring a model registration result based on the additional authentication result.
  7. 7. The system of claim 1, wherein the parameter tuning module performs steps comprising: Comparing the machining error with a preset machining error threshold value to obtain a target error type and a target error value which exceed the machining error threshold value; Accessing a pre-constructed mapping relation library of processing error characteristics and control parameter changes, converting the target error type and the target error value into corresponding control parameter adjustment directions and control parameter adjustment amounts, and generating control parameter adjustment data; performing operation treatment on the control parameter adjustment data and the current processing control parameters to obtain adjusted processing control parameters; and configuring the adjusted processing control parameters to the sheet metal processing equipment to finish the regulation and control of the processing control parameters.
  8. 8. The system of claim 1, further comprising a timing parameter tuning module, wherein the timing parameter tuning module is executed by the processor to: Setting a control parameter monitoring time zone, and extracting a plurality of groups of processing control parameters of the control parameter monitoring time zone; respectively acquiring a plurality of groups of processing errors corresponding to the plurality of groups of processing control parameters, and analyzing the error variation trend of the plurality of groups of processing errors; and analyzing the parameter time sequence change of the plurality of groups of processing control parameters based on the error change trend, and regulating and controlling the processing control parameters according to an analysis result.

Description

Sheet metal processing monitoring regulation and control system Technical Field The invention relates to the field of sheet metal machining control, in particular to a sheet metal machining monitoring and regulating system. Background The metal plate processing is widely applied to various industries such as aerospace, automobile manufacturing, electronic appliances and the like. With the development of modern manufacturing industry, higher and higher requirements are put on the machining precision and production efficiency of sheet metal parts. However, in the prior art, sheet metal parts are easily affected by a plurality of factors in the processing process, such as sheet material characteristics, die abrasion, equipment precision and the like, so that deviation of product size and shape occurs, processing quality is reduced, meanwhile, the traditional sheet metal production mode lacks an effective online monitoring and real-time feedback mechanism, operators are difficult to discover and correct processing errors in time, and production efficiency is low. Disclosure of Invention The application provides a sheet metal machining monitoring and regulating system, which aims to solve the technical problems of low machining quality and efficiency caused by difficulty in real-time monitoring and regulating of sheet metal machining errors in the prior art. The application discloses a sheet metal machining monitoring and regulating system which comprises a standard model construction module, a machining equipment configuration module, a sheet metal machining module, an actual measurement model construction module, a model registration module and a parameter regulating module, wherein the standard model construction module is used for determining a target sheet metal part, collecting design data of the target sheet metal part and constructing a standard sheet metal part model based on the design data, the machining equipment configuration module is used for obtaining machining control parameters of sheet metal machining equipment based on the design data and configuring the sheet metal machining equipment, the sheet metal machining module is used for executing sheet metal machining through the machining control parameters to obtain the machined sheet metal part and transmitting the machined sheet metal part to a machining monitoring area, the actual measurement model construction module is used for starting a machining monitoring device in the machining monitoring area, carrying out three-dimensional data collection on the machined sheet metal part and constructing an actual measurement sheet metal part model based on the data collection result, the model registration module is used for registering the standard sheet metal part model and the actual measurement sheet metal part model to obtain model registration result, and the parameter regulating module is used for obtaining machining errors of the machined sheet metal part based on the machining errors of the model registration result. One or more technical schemes provided by the application have at least the following technical effects or advantages: The method comprises the steps of determining a target sheet metal part through a standard model construction module, acquiring design data of the target sheet metal part, constructing a standard sheet metal part model based on the design data, acquiring standard size and shape information of the sheet metal part, providing a reference basis for subsequent processing monitoring and error analysis, obtaining processing control parameters of a sheet metal processing device based on the design data through a processing device configuration module, configuring the sheet metal processing device accordingly, converting design requirements into processing instructions, preparing for accurate manufacturing of the sheet metal part, executing sheet metal part processing through the sheet metal part processing module with the processing control parameters, acquiring the processed sheet metal part, transmitting the processed sheet metal part to a processing monitoring area, completing actual production of the sheet metal part, transmitting the processed sheet metal part to a monitoring position, creating conditions for online detection, starting a processing monitoring device in the processing monitoring area through an actual measurement model construction module, acquiring three-dimensional data of the processed sheet metal part, obtaining the actual size and shape of a workpiece based on the acquired data, forming a digital model reflecting the actual state of the sheet metal part, registering the standard sheet metal part model and the actual measurement model, obtaining a model registering result, comparing the standard model and the processed sheet metal part with the actually measured model, optimizing the processing parameters based on the accuracy of the processing parameters, optimizing the processing parameters,