Plate-type numerical control six-surface drilling machine virtual debugging and process optimization method based on digital twinning

Abstract

The invention belongs to the field of furniture customization manufacturing, and discloses a plate type numerical control six-face drilling machine virtual debugging and process optimization method based on digital twinning, and the method comprises the steps: building a high-precision digital twinning model based on an equipment mechanical structure and control logic; a five-dimensional virtual mapping system comprising a feeding detection module, a positioning and clamping module, a drilling module, an intelligent control module and a chip removal module is constructed; the method has the advantages that the drilling time is optimized, and the problem of path conflict in processing of various plates is solved.

Description

[0001] The application belongs to the technical field of digitalization of furniture manufacturing, and particularly relates to a numerical control six-face drilling machine system construction method combining digital twinning and virtual commissioning technology, and drilling path process optimization and capacity prediction technology based on the system. BACKGROUND

[0002] Digital twinning refers to constructing a high-fidelity dynamic mapping of a physical entity in a virtual environment through digital modeling, simulation and data fusion technology, and realizing virtual-real interaction and collaborative optimization.

[0003] Virtual commissioning is an advanced engineering verification technology based on digital twinning, which simulates the running logic, control program and mechanical movement of physical equipment in a virtual environment, discovers and optimizes potential problems in advance, thereby reducing on-site commissioning risks, shortening equipment delivery cycles and reducing reformation costs. SUMMARY

[0004] The application aims to at least solve the above technical problems to some extent. To this end, the application aims to provide a numerical control six-face drilling machine system construction method combining digital twinning and virtual commissioning technology.

[0005] The technical scheme adopted by the application is as follows:

[0006] A plate type numerical control six-face drilling machine virtual commissioning and process optimization method based on digital twinning comprises a feeding detection module, a positioning and clamping module, an intelligent control module, a drilling module and a chip removal module.

[0007] The feeding detection module is used to obtain model data of a plate, construct a shell geometric model based on the plate model data, retrieve corresponding machining parameters of the shell geometric model in a database, and detect the size, shape and surface flatness of the plate.

[0008] The positioning and clamping module is used to accurately and firmly fix the plate on a workbench according to the type and size information of the plate through multiple directional clamping cylinders or clamps.

[0009] The intelligent control module is used to analyze the drilling efficiency of a production line under different process paths, predict the machining cycle of each path, optimize the drilling sequence and multi-face collaborative machining strategy, and realize optimal process path selection, wherein the optimal process path selection is grouped path selection.

[0010] The drilling module is used to obtain machining instructions, compare and analyze the process operation flow of model parts, and realize six-face drilling and slotting and other machining operations in the digital twinning model based on the comparison result.

[0011] The debris removal module is used to clean the debris generated during the machining process.

[0012] Further, the intelligent control module further comprises:

[0013] The machine tool data acquisition module acquires the machining parameters of the drilling machine tool in real time, including the drill bit speed, the feed speed and the positioning accuracy.

[0014] The data transmission module uploads the collected machining data to the local server.

[0015] The data processing module models and analyzes the drilling data to generate process optimization suggestions.

[0016] Further, the feeding detection module further comprises:

[0017] The feeding and discharging robot module uses an integrated six-axis industrial robot to realize automatic grabbing and turning of the plate, ensuring the machining accuracy of six-face drilling.

[0018] Further, the monitoring of the running state of each drilling module comprises:

[0019] The drilling process is displayed in real time through a three-dimensional digital twin interface, and the positions of the drill bits and the machining state are dynamically monitored.

[0020] Further, the monitoring of the running state of each drilling module further comprises:

[0021] The six-axis robot integrates a position sensor and an acceleration sensor to ensure that the turning and positioning accuracy error of the plate during drilling meets the machining requirements.

[0022] Further, the six-face drilling method is as follows:

[0023] After the plate enters the specified position, the Y-axis linear module in the left and right drilling components drives the X-axis linear module to move horizontally and reciprocally, and the X-axis linear module drives the multi-directional drill bit to move vertically and reciprocally, thereby drilling and slotting the front, back, left and right four sides of the plate, and the left and right drilling components can also process the top surface of the plate. The bottom surface processing part: the bottom surface drilling component located at the bottom of the shell, the Y-axis linear module two is fixed between the two X-axis linear module two slide blocks, and the multi-directional drill bit two is fixed on the slide block of the Y-axis linear module two, which can pass through the belt drive part of the conveying device to drill and slot the bottom surface of the plate.

[0024] Further, the digital twin virtual debugging comprises the following steps:

[0025] S1, build a digital twin model, and define the mechanism and mechanical motion design for the digital twin model;

[0026] S2, create input and output variable signals required for the automatic operation of the control digital twin model;

[0027] S3, compile an automatic control simulation PLC program for the control digital twin model;

[0028] S4, create a communication address and start the communication module PLC SIM Advanced;

[0029] S5, one-to-one mapping of digital twin model signals and PLC control signals, and starting digital twin virtual debugging simulation, which realizes virtual debugging combining virtual and real;

[0030] S6, according to the actual efficiency of the factory drilling, build the same production layout to realize online production test, and propose optimization scheme according to the test. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 Design flowchart of the present application

[0032] Figure 2 Feeding detection module of the present application

[0033] Figure 3 Positioning and clamping module of the present application

[0034] Figure 4 Drilling module of the present application

[0035] Figure 5 Intelligent control module of the present application

[0036] Figure 6 Chip removal module of the present application

[0037] Figure 7 Technical roadmap of the present application

[0038] Figure 8 Simulation design diagram of the present application

[0039] Figure 9 Five-dimensional model diagram of the present application DETAILED DESCRIPTION

[0040] The technical solutions and advantages of the present application will be further described in detail below in conjunction with the accompanying Figures 1-9 and examples. The embodiments of the present application are not limited thereto.

[0041] The present application discloses a plate type numerical control six-face drilling machine virtual debugging and process optimization method based on digital twinning, as shown in Figures 1-6 , including five functional modules of feeding detection module, positioning and clamping module, drilling module, intelligent control module and chip removal module;

[0042] With reference to Figure 2 The feeding detection module can obtain the plate information and transmit it to the data processing unit, and then quickly search and match in the database built in the equipment to call out the corresponding processing parameters and programs.

[0043] Specifically, the physical state information of the plate fed back by the comprehensive sensor is analyzed and judged. If the information of the plate is complete and the physical indicators meet the processing requirements, the data processing unit sends instructions to the subsequent positioning and clamping module and the conveying device, so that the plate smoothly passes through the conveyor belt and smoothly enters the six-face drilling machine for processing.

[0044] With reference to Figure 3 The positioning and clamping module is composed of a clamping cylinder, a clamping arm and a clamping block, which can ensure that the plate maintains stable and accurate position during processing.

[0045] Specifically, the L-shaped support is mainly provided with sliding rails for mounting the upper clamping plate and the clamping plate. The upper clamping plate is connected to the output shaft of the second driving device, and the upper and lower movement is driven by the second driving device to realize the clamping action.

[0046] With reference to Figure 4 The drilling module is designed by integrating a multi-axis linkage mechanical structure and a precision power transmission system to realize accurate processing of complex spatial hole positions. The multi-degree-of-freedom motion mechanism is composed of an X / Y / Z three-axis linear motion platform and a rotating shaft system.

[0047] Specifically, the drill bit is driven by the cylinder to complete the mechanical movement of the extension path, and the center distance is matched with the 32mm hole position system standard of customized furniture. During processing, the fixture fixes the plate and moves along the X axis, while the drill package moves along the Y axis, and the two cooperate to realize the positioning of the plate in the XOY plane. Then, the drill package moves along the Z axis to complete the drilling operation. When some holes on the plate match the multiple drill bits on the drill package in terms of position, diameter and depth, etc. parameters, these drill bits can be extended at the same time to realize the processing of multiple holes in one drilling.

[0048] With reference to Figure 5 After receiving the processing task, the intelligent control module first comprehensively analyzes the processing code, extracts key data such as hole position information and processing process parameters of the plate, and initializes the drilling machine according to these data. After the plate is fed and positioned and clamped, the intelligent control module starts the drilling machine, sends motion control instructions to the numerical control system according to the optimized processing path, and simultaneously monitors the data fed back by the sensor in real time, and dynamically adjusts the processing parameters according to the processing condition.

[0049] The intelligent control module includes an OPC protocol.

[0050] Specifically, the OPC UA server can analyze a large amount of data collected by the underlying facilities through the information module, which includes the spindle speed, feed rate, drill bit position, and plate positioning information of the drilling machine, and complete the connection of the nodes in the OPC UA server.

[0051] With reference to Figure 6 , the chip removal module cleans the surface of the plate and removes residual drill chips.

[0052] By Figure 7 It can be seen that the digital twin model defines the mechanism and mechanical motion of the six-face drilling machine model, and associates the actions and signals for PLC program control through the communication module. A virtual environment identical to the actual production environment is designed to test the actual production method;

[0053] Specifically, with reference to Figure 8 , the digital twin model is designed by Process Simulate, and the digital twin model signal is connected to the external PLC SIM Advanced through Ethernet. Based on the signal set by the model mechanical motion and the relevant mapping of the PLC program control signal, the PLC control program controls the driving of the digital twin model mechanical motion.

[0054] The application also discloses a digital twin-based plate numerical control six-face drilling machine virtual debugging and process optimization method, as shown in Figure 9 , which comprises the following steps:

[0055] S1, build a digital twin model, and define the mechanism and mechanical motion of the digital twin model;

[0056] S2, create input and output variable signals required for automatic operation of the control digital twin model;

[0057] S3, compile an automatic control simulation PLC program for controlling the digital twin model;

[0058] S4, create a communication address and start the communication module PLC SIM Advanced;

[0059] S5, one-to-one map the digital twin model signal and the PLC control signal, and start the digital twin virtual debugging simulation, which realizes virtual debugging combining virtual and real;

[0060] S6, according to the actual efficiency of the factory drilling, build the same production layout to realize online production test, and propose an optimization scheme according to the test.

[0061] With reference to Table 1, the path selection based on the grouping path can effectively reduce the time required for processing the plate, which comprises:

[0062] Reduce tool change frequency and effectively improve machining efficiency;

[0063] Accurately predict the process time of CNC six-sided drilling machines to provide practical reference for the optimization of drilling production lines;

[0064] Optimize drilling paths to reduce and lower production costs;

[0065] The above combined with the appendix Figures 1-9 The structure and embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments, including components, without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention. Table 1

Claims

1. A method for virtual debugging and process optimization of a plate-type CNC six-sided drilling machine based on digital twins, characterized in that, include: The module includes a feeding and detection module (1), a positioning and clamping module (2), an intelligent control module (3), a drilling module (4), and a chip removal module (5), among which: The loading and detection module is used to acquire the model data of the board, construct the shell geometry model based on the board model data, retrieve the corresponding processing parameters of the shell geometry model in the database, and detect the size, shape and surface flatness of the board during loading and detection. The positioning and clamping module is used to accurately and firmly fix the plate onto the worktable using clamping cylinders or clamps in multiple directions, based on the type and size information of the plate. The intelligent control module is used to analyze the drilling efficiency of the production line under different process paths, predict the processing cycle of each path, and optimize the drilling sequence and multi-face collaborative processing strategy to achieve optimal process path selection, wherein the optimal process path selection is a grouped path. The drilling module is used to acquire processing instructions, compare and analyze the process operation flow of the model parts, and perform processing operations such as six-sided drilling and grooving in the digital twin model based on the comparison results. The debris removal module is used to clean up debris generated during the processing.

2. The virtual debugging and process optimization method for a plate-type CNC six-sided drilling machine based on digital twins according to claim 1, characterized in that, The intelligent control module also includes: Machine tool data acquisition module: Real-time acquisition of machining parameters of drilling machine tool, including drill bit speed, feed rate and positioning accuracy; The data transmission module uploads the collected processing data to the local server; The data processing module models and analyzes borehole data to generate process optimization suggestions.

3. The virtual debugging and process optimization method for a plate-type CNC six-sided drilling machine based on digital twins according to claim 1, characterized in that, The material feeding and detection module also includes: The loading and unloading robot module uses an integrated six-axis industrial robot to automatically grip and flip the sheet material, ensuring the processing accuracy of drilling holes on all six sides.

4. The virtual debugging and process optimization method for a plate-type CNC six-sided drilling machine based on digital twins according to claims 1-2, characterized in that, The monitoring of the operating status of each drilling module specifically includes: The drilling process is displayed in real time through a 3D digital twin interface, and the position and processing status of each drill bit are dynamically monitored.

5. The virtual debugging and process optimization method for a plate-type CNC six-sided drilling machine based on digital twins according to claims 1-4, characterized in that, The monitoring of the operating status of each drilling module also includes: The six-axis robot integrates position and acceleration sensors to ensure that the plate flipping and positioning accuracy meet the processing requirements during drilling.

6. The virtual debugging and process optimization method for a plate-type CNC six-sided drilling machine based on digital twin as described in claim 1, characterized in that, The six-sided drilling method is as follows: After the sheet material enters the designated position, the Y-axis linear modules in the left and right drilling components drive the X-axis linear modules to move laterally back and forth. The X-axis linear modules then drive the multi-directional drill bit to move vertically back and forth, thereby drilling and grooving the front, back, left, and right sides of the sheet material. The left and right drilling components can also process the top surface of the sheet material. Bottom surface processing: The bottom drilling component, located at the bottom of the housing, has its Y-axis linear module two fixed between the slides of the two X-axis linear modules two. The multi-directional drill bit two is fixed on the slide of the Y-axis linear module two, allowing it to pass through the belt drive of the conveyor device to drill and groove the bottom surface of the sheet material.

7. The virtual debugging and process optimization method for a plate-type CNC six-sided drilling machine based on digital twins according to any one of claims 1-5, characterized in that, Includes the following steps: S1. Build a digital twin model and define the mechanism and design the mechanical motion of the digital twin model; S2. Create the input and output variable signals required for the automated operation of the digital twin model; S3. Develop an automated control simulation PLC program for the control digital twin model; S4. Create a communication address and start the communication module PLCSIM Advanced; S5. Map the digital twin model signals one by one with the PLC control signals, and start the digital twin virtual debugging simulation to achieve virtual debugging that combines the virtual and real worlds. S6. Based on the actual drilling efficiency in the factory, set up the same production layout to test online production, and propose optimization solutions based on the test results.

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