CN105933449A - Intelligent laser engraving system based on industry 4.0 - Google Patents

Abstract

An intelligent laser engraving system based on Industry 4.0 relates to laser engraving equipment. There is a user module, a communication module, an electrical control module and a mechanical module; the user module is provided with a mobile phone client and an ERP management system; the ERP management system is connected to the Internet and keeps a real-time connection with the cloud server; the communication module simultaneously connects the user Module and electrical control module, the communication module is provided with a cloud server and a 3G router; the electrical control module is connected to the mechanical module, and the electrical control module is provided with a PLC controller, a servo driver and an HMI touch screen; the mechanical module is provided with a storage area , linear modules, linear guides, processing stations, vacuum chucks, lasers, outbound areas and load bases. Personalized products can be customized according to needs, no manual operation is required until the processing is completed, and the production efficiency is high; the processing status can be more comprehensively monitored in real time; the movement accuracy is high, and the engraving area is larger, which is beneficial to increase the aesthetics of the product.

Description

An Intelligent Laser Engraving System Based on Industry 4.0

technical field

The invention relates to laser engraving equipment, in particular to an intelligent laser engraving system based on Industry 4.0.

Background technique

The entry of the Internet into traditional industries is not a cross-border resource plunder, but an integrated benefit sharing. "Industry 4.0" is the core of the Internet's transformation of traditional manufacturing, and it is also an important manifestation of Internet thinking in manufacturing. Therefore, in the global environment of digitalization, intelligence, and networking, the collision of "Industry 4.0" and Internet + will clarify the direction of transformation and upgrading of traditional manufacturing enterprises, and better help traditional manufacturing industries to rely on mobile Internet, cloud computing, and big data. Information technologies such as data and the Internet of Things optimize the production process and supply chain, reduce the amount of raw materials and environmental load, so as to meet the faster and more personalized demand response of the future market and achieve lower manufacturing costs. Today's laser engraving manufacturing industry generally has the following shortcomings: 1. It does not have customized production capacity; 2. It consumes too much manpower; 3. It is difficult to grasp the production status in real time.

Chinese patent CN202183030 discloses an intelligent numerical control system for a laser cutting machine, which includes a laser cutting process database for storing and managing all program files, machine status, user programs and processing status of the intelligent computer numerical control system for the laser cutting machine data. However, the purpose of this system is to improve the data feedback processing in the processing process, and it does not have the function of storing and managing user information and order information. Moreover, the database is built on the local industrial computer, which faces certain on-site emergencies.

Contents of the invention

The purpose of the present invention is to provide an intelligent laser engraving system based on Industry 4.0 that is fully automated, meets the individual needs of users, and has efficient and stable data interaction.

The invention is provided with a user module, a communication module, an electrical control module and a mechanical module;

The user module is provided with a mobile phone client and an ERP management system;

The mobile client is used to provide preset engraving patterns for users to choose, allowing users to upload their own patterns, input a string of English character strings, and select specific raw material colors, and has online payment and online query functions. Users first fill in the necessary information. Personal information, and then after payment and placing an order, the available user information, pattern number, raw material color, English character string and pattern file uploaded by the user will be transmitted to the cloud server in the communication module through php or java. Check the current status of the order online at any time;

The ERP management system is connected to the Internet, keeps a real-time connection with the cloud server, obtains user information, order information and processing status information, and displays them on the host computer interface in real time;

The communication module is connected to the user module and the electrical control module at the same time, the communication module is provided with a cloud server and a 3G router, and the cloud server has a user database, an order database, a processing state database and a data processing program;

The data processing program receives the user information and order information of the user module, and at the same time reads the operating status of the electrical control module in real time, and updates the user database, order database and processing status database; for the pattern uploaded by the user, the data processing program processes the pattern into G The code file is stored in the order database; when an order is issued, the data processing program first determines whether the mechanical module is free at this time. Convert it into a serial port message that can be read by the electrical control module, send it to the 3G router through the network, and modify the current status of the order in the order database;

The 3G router is used to realize the data transmission between the cloud server and the electrical control module. It has a built-in program for encapsulating and decapsulating TCP/IP messages. The 3G router is inserted with a mobile phone card, and is equipped with an antenna and an RS‐485 serial port. The mobile network establishes a connection with the cloud server. After the 3G router decapsulates the TCP/IP message and obtains the data, it writes it into the electrical control module through the serial port. When the electrical control module feeds back data to the cloud server, the above data processing process is reversed;

The electrical control module is connected to the mechanical module, and the electrical control module is provided with a PLC controller, a servo driver and an HMI touch screen;

The PLC controller has a built-in motion control module, and the PLC controller receives the serial port message of the 3G router to generate a specific instruction, and feeds back the result to the cloud server in the form of a serial port message, and then starts the processing task;

The HMI touch screen is connected with the PLC controller through the RS-232 serial port;

The mechanical module is provided with a storage area, a linear module, a linear guide rail, a processing station, a vacuum chuck, a laser, a storage area and a load base;

The storage area is provided with three raw material ports, and each raw material port is provided with a photoelectric sensor and a propulsion cylinder, and the propulsion cylinder pushes out the corresponding raw material according to the color of the raw material selected by the user;

The linear module is built in two directions of X and Y, and each direction is composed of a single-axis robot connected to a servo motor. Each single-axis robot is equipped with two travel switches and a miniature photoelectric sensor. The photoelectric sensor is used to calibrate the origin of the stroke. One end of the single-axis robot in the X direction is fixed on the slide table of the single-axis robot in the Y direction, and the other end of the single-axis robot in the X direction is fixed on the slide table of the linear guide rail. The linear guide rail is used to balance the linear The center of gravity of the module avoids motion jitter;

The processing station includes a biaxial cylinder, a clamping cylinder, a rotating cylinder and a processing plane. The clamping cylinder clamps the raw material, cooperates with the processing plane to keep the raw material at a level, and the clamping cylinder is connected to the rotating cylinder to realize the horizontal turning of the raw material;

The vacuum chuck and the laser are fixed on different positions of the sliding table of the single-axis robot in the X direction, and can move freely in the stroke plane. The vacuum chuck absorbs raw materials from the storage area and moves them to the processing station. Move to the out-of-warehouse area, the vacuum suction cup is connected to the cylinder to move up and down, and the laser is connected to the output end of the PLC controller;

The outbound area is an aluminum triangular track, and the outbound area is fixed on the edge of the load base;

The load base is a rectangular iron plate, which carries other parts of the mechanical module. It adopts a multi-threaded hole design, and adjusts the physical position of the processing station and the delivery area according to the size of the raw material.

The beneficial effects of the present invention are: since both the user module and the communication module are connected to the Internet, automatic production can be realized through a program, and users can customize personalized products according to their own needs. Sales production efficiency also reduces a lot of labor costs; because the cloud server is far away from the factory, it not only safely stores important production data, but also avoids industrial site emergencies such as on-site power outages, data theft, and man-made sabotage. Data center; since the cloud server can remotely read and write the PLC controller through the 3G router, the present invention can monitor the processing status more comprehensively and in real time by cooperating with sensors and actuators; since the ERP management system can access the database through the network, the location changes It is more flexible; because the linear module uses a single-axis robot and servo motor, and the processing station is equipped with a rotary cylinder, not only the movement accuracy is much higher than that of ordinary laser engraving machines, but also the engraving area is larger, which is beneficial to increase the beauty of the product .

Description of drawings

FIG. 1 is a device architecture diagram of an embodiment of the present invention.

Fig. 2 is an overall mechanical diagram of the embodiment of the present invention.

Fig. 3 is a structural diagram of the mechanical module of the present invention.

Fig. 4 is a detailed structure diagram of the processing station of the present invention.

detailed description

The present invention will be further described below through the embodiments in conjunction with the accompanying drawings.

Referring to Figures 1 to 4, the embodiment of the present invention is provided with a user module 1, a communication module 2, an electrical control module 3 and a mechanical module 4;

Described user module 1 is provided with mobile client 11 and ERP management system 12;

The mobile phone client 11 is a webpage or mobile application for displaying products, and is used to provide preset engraving patterns for users to choose, allowing users to upload their own patterns, input a string of English character strings, select specific raw material colors, and have online Payment and online query function, first prompt the user to enter the necessary personal information, after the user purchases a pattern or uploads a pattern, selects the material color and enters an English character string, this module obtains user information and order information to confirm to the user, the user confirms the order and pays After that, the available user information, pattern number, raw material color, English character string and pattern file uploaded by the user will be passed to the communication module 2 through php or java. After placing an order, the user can query the order processing status and logistics status according to the order number.

The ERP management system 12 is connected to the Internet, keeps a real-time connection with the cloud server, obtains user information, order information and processing status information, and displays them on the host computer interface in real time;

The communication module 2 is connected to the user module 1 and the electrical control module 3 simultaneously, the communication module 2 is provided with a cloud server 21 and a 3G router 22, and the cloud server 21 has a user database, an order database, a processing state database and a data processing program;

The data processing program receives the user information and order information of the user module 1, and at the same time reads the operating status of the electrical control module 3 in real time, updates the user database, order database and processing status database; for the patterns uploaded by the user, the data processing program processes the patterns G code files are stored in the order database; when an order is issued, the data processing program first determines whether the mechanical module is free at this time, if the mechanical module is free, the data processing program will use the available pattern number, material color, English character string and G The code file is converted into a serial port message that can be read by the electrical control module, and is sent to the 3G router 22 through the network, and the current state of the order is modified in the order database at the same time;

The 3G router 22 is used to realize the data transfer between the cloud server 21 and the electrical control module 3. It has a built-in program for encapsulating and decapsulating TCP/IP messages. The 3G router 22 is inserted with a mobile phone card, and is equipped with an antenna and RS- 485 serial ports, establish a connection with the cloud server 21 through the mobile network, after the 3G router 22 decapsulates the TCP/IP message and obtains the data, write the electrical control module 3 through the serial port, and when the electrical control module 3 feeds back data to the cloud server 22, the above Data processing is the opposite;

The electrical control module 3 is connected to the mechanical module 4, and the electrical control module 3 is provided with a PLC controller 31, a servo driver 32 and an HMI touch screen 33;

The PLC controller 31 has a built-in motion control module. The PLC controller 31 receives the serial message of the 3G router 22 to generate a specific command, and feeds back the result to the cloud server 21 in the form of a serial message, and then starts the processing task.

The HMI touch screen 33 is connected with the PLC controller 31 through the RS-232 serial port.

In Fig. 2, mark 5 is an aluminum profile frame and an acrylic plate, and 6 is a cooling fan.

The mechanical module 4 is provided with a storage area 41, a linear module 42, a linear guide rail 43, a processing station 44, a vacuum chuck 45, a laser 46, a storage area 47 and a load base 48;

The storage area 41 is provided with three raw material ports, each raw material port is provided with a photoelectric sensor and a propulsion cylinder, and according to the color of the raw material selected by the user, the propulsion cylinder pushes out the corresponding raw material;

The linear module 42 is built in two directions of X and Y, and each direction is composed of a single-axis robot connected to a servo motor. Each single-axis robot is provided with two travel switches and a miniature photoelectric sensor. The miniature photoelectric sensor is used to calibrate the origin of the stroke. One end of the single-axis robot in the X direction is fixed on the slide table of the single-axis robot in the Y direction, and the other end of the single-axis robot in the X direction is fixed on the slide table of the linear guide rail 43. The linear guide rail 43 is used To balance the center of gravity of the linear module 42, avoid motion jitter;

The processing station 44 includes a biaxial cylinder 441, a clamping cylinder 442, a rotating cylinder 443 and a processing plane 444. The clamping cylinder 442 clamps the raw material, cooperates with the processing plane to make the raw material in a horizontal position, and the clamping cylinder 442 is connected to the rotating cylinder 443 to realize Horizontal flipping of raw materials;

The vacuum chuck 45 and the laser 46 are fixed on different positions of the sliding table of the single-axis robot in the X direction, and can move freely in the stroke plane. The vacuum chuck absorbs raw materials from the storage area and moves them to the processing station. Move the finished product to the delivery area, the vacuum suction cup is connected to the cylinder to move up and down, and the laser is connected to the output end of the PLC controller;

The storage area 47 is an aluminum triangular track, and the storage area 47 is fixed on the edge of the load base 48;

The load base 48 is a rectangular iron plate, which carries other parts of the mechanical module 4. It adopts a multi-threaded hole design, and adjusts the physical position of the processing station and the delivery area according to the size of the raw material.

Communication module 2 connects user module and electric control module simultaneously, and it comprises cloud server 21 and 3G router 22, and cloud server 21 has user database, order database, processing status database and data processing program, and described data processing program receives user module incoming At the same time, read the operating status of the electrical control module 3 in real time, and update the user database, order database and processing status database; for the patterns uploaded by users themselves, the data processing program performs smoothing filtering and binarization on the patterns , process the binary image into a G code file and store it in the order database; when an order is issued, the data processing program first determines whether the mechanical module 4 is idle at this time, if the mechanical module 4 is idle, the data processing program will use the available pattern number, The raw material color, English character string and G code file are converted into a serial port message that can be read by the electrical control module, encapsulated into a TCP/IP message by the bottom layer of the server, and sent to the 3G router 22 through the network, and at the same time modify the order status in the order database For "processing".

The 3G router 22 is inserted with a mobile phone card, has a built-in program for encapsulating and decapsulating TCP/IP messages, and is equipped with an antenna and an RS-485 serial port. The 3G router 22 establishes a connection with the cloud server 21 through the mobile network, and establishes a connection with the electrical control module 3 through the RS-485 serial port. The data segment in the TCP/IP message sent by the cloud server 21 is a serial port message, so after the TCP/IP message enters the 3G router 22 from the antenna, the serial port message of the data segment is obtained through decapsulation, and is input into the electrical circuit through the RS‐485 serial port. control module 3. Conversely, the serial port message input by the electrical control module 3 into the 3G router 22 will be encapsulated into a TCP/IP message, and sent to the cloud server 21 by the antenna.

The control module 3 includes a PLC controller 31 , a servo driver 32 and an HMI touch screen 33 . The PLC controller has a built-in motion control module, and the PLC controller executes the read register or write register command according to the different serial port messages sent by the 3G router. In this example, the PLC controller writes the pattern number, raw material color, English character string and G code into different registers. Then start to execute the processing task, the PLC controller 31 reads the value of each sensor, controls the actuator to turn on and off, and the motion control module controls the rotation of the servo motor through the servo driver.

The HMI touch screen is connected to the PLC controller through the RS-232 serial port, and the on-site control function is realized by programming the touch screen.

The mechanical module 4 includes a storage area 41 , a linear module 42 , a linear guide rail 43 , a processing station 44 , a vacuum chuck 45 , a laser 46 , a storage area 47 and a load base 48 .

The preferred raw material to be carved in the present embodiment is length, width and thickness respectively 6cm, 6cm and 1cm wood chip, and design has three kinds of colors of red, yellow and blue, so storage area 41 has three raw material ports, and each raw material port is provided with a A photoelectric sensor and a propulsion cylinder, according to the color of the raw material selected by the user, the propulsion cylinder pushes out the corresponding raw material, and the photoelectric sensor is used to detect whether the raw material is insufficient.

The linear module 42 is built in two directions of X and Y, and each direction is composed of a single-axis robot connected with a servo motor. The servo motor is closely connected with the ball screw in the single-axis robot. When the ball screw rotates, it drives The sliding table makes linear motion. Each single-axis robot is equipped with two travel switches and a miniature photoelectric sensor. The miniature photoelectric sensor is used to calibrate the origin of the travel. One end of the X-direction single-axis robot is fixed on the slide table of the Y-direction single-axis robot, and the other end is fixed on the On the slide table of the linear guide rail 43, the linear guide rail 43 is used to balance the center of gravity of the linear module to avoid movement vibration.

The vacuum chuck 45 and the laser 46 are fixed on different positions of the sliding table of the single-axis robot in the X direction, and can move freely in the stroke plane. The vacuum chuck 45 sucks raw materials from the storage area 41 and moves to the processing station 44. Then the finished product is moved to the delivery area 47, the vacuum chuck 45 is connected to the cylinder to move up and down, and the laser 46 is controlled on and off by the output end of the PLC controller 31.

The processing station 44 includes a biaxial cylinder 441 , a clamping cylinder 442 , a rotating cylinder 443 and a processing plane 444 .

After the vacuum suction cup 45 moves the wood chip to the processing station 44, the processing plane 444 is pushed to the processing position by the biaxial cylinder 441, the upper surface supports the wood chip, the clamping cylinder 442 clamps the wood chip on both sides, and the laser 46 completes the pattern on the front of the wood chip After engraving, the biaxial cylinder 441 pulls back the processing plane 444 backwards, and then the rotating cylinder 443 drives the clamping cylinder 441 to rotate horizontally by 180 degrees, and the biaxial cylinder 441 pushes the processing plane 444 again so that the upper surface supports wood chips, and the laser 46 immediately Start engraving the English character string on the reverse side.

During the processing, the states of the sensors and actuators are reflected in the registers of the PLC controller, so the data processing program on the cloud server 21 can obtain the processing status information and update the processing status in real time by sending the serial port message of "read register". Database, users can check the product processing status at any time on the mobile client 11.

When the processing tasks were all completed, the vacuum chuck 45 sucked the wood chips and moved them to the delivery area 47 . Then the product is sent to the user by courier, and the user inquires the logistics status on the mobile client 11 according to the courier number.

During the entire sales and production process, the ERP management system 12 is connected to the Internet, maintains communication with the cloud server 21, obtains the required information from the user database, order database and processing status database, and converts it into intuitive data through programming and displays it on the host computer interface In general, the factory management can implement dynamic management of user information and order information through the ERP management system 12, as well as real-time monitoring of processing status.

The user module has two parts facing the user and facing the factory. The user can customize the processing information of the product and transmit the order information to the communication module. The factory can dynamically manage the user information and order information, and monitor the processing status; the communication module simultaneously Connect the user module with the electrical control module, which realizes the management of information, the software processing of the processed image and the transmission of the processed data, and the processed data is sent to the electrical control module remotely; the electrical control module is connected with the mechanical module, which controls the mechanical The module automatically processes and feeds back the processing status to the communication module in real time.

The user module includes a mobile phone client and an ERP management system. The mobile phone client is a web page or mobile application that displays products, and provides uploading patterns, online payment and online query functions. The ERP management system is used by the factory to store user information and order information. management and monitoring of processing status.

The communication module includes a cloud server and a 3G router, and a database is established in the cloud server to store user information, order information and processing status information, software processing of processed images and sending of processing data, and the 3G router is used for cloud server and electrical control Data transfer between modules.

The electrical control module includes a PLC controller, a servo driver and an HMI touch screen, wherein the PLC controller has a built-in motion control module, which generates output signals and motion control instructions according to the order information, and the servo driver is connected to the PLC controller to control the servo drive according to the motion control instructions. The motor rotates, and the HMI touch screen establishes a connection with the PLC controller through the RS‐232 serial port.

The mechanical module includes a storage area, a linear module, a linear guide rail, a processing station, a vacuum chuck, a laser, a storage area, and a load base. The storage area has multiple raw material ports, which are pushed out by the cylinder according to user-defined information. Specific raw materials, the linear module is built in two directions of X and Y, and each direction is composed of a single-axis robot connected to a servo motor. One end of the X-direction single-axis robot is fixed on the slide of the Y-direction single-axis robot. The other end is fixed on the sliding table of the linear guide rail. The processing station fixes the raw material by clamping the air grip and the processing platform. The clamping air grip cooperates with the rotating cylinder to realize the turning of the raw material. The vacuum suction cup is used to absorb Raw materials are moved to the processing station, and then the finished product is moved to the delivery area. The laser is fixed on the slide table of the single-axis robot in the X direction and can move freely in the stroke plane. The load base is designed with multi-threaded holes. For adjusting fixed mechanical parts.

The ERP management system is connected to the Internet to obtain the required data by establishing a remote connection with the cloud server.

The mobile client allows users to upload their own patterns, input a string of English character strings and select a specific material color, and the English character strings and patterns are respectively carved on both sides of the material.

The 3G router is inserted with a mobile phone card, and is equipped with an antenna and a RS-485 serial port. It establishes a connection with the cloud server through the mobile network, and has a built-in program for encapsulating and decapsulating TCP/IP messages, and communicates with the PLC controller through the RS-485 serial port. establish connection.

The user module of the present invention has two parts facing the user and facing the factory. The user can customize the processing information of the product and transmit the order information to the communication module. The factory can dynamically manage the user information and order information, and monitor the processing status; Information management, software processing of processing images and sending of processing data, the processing data is sent to the electrical control module remotely; the electrical control module obtains processing data, controls the mechanical module to automatically complete the process of storage, processing and delivery, and real-time Feedback processing status to communication module. The entire system meets the requirements of the digital enterprise platform in the industry 4.0 era for network communication, data processing and intelligent customization.

Claims (1)

1. An intelligent laser engraving system based on Industry 4.0 is characterized in that a user module, a communication module, an electrical control module and a mechanical module are provided; The user module is provided with a mobile client and an ERP management system; the mobile client is used to provide preset engraving patterns for the user to choose; the ERP management system is connected to the Internet, keeps a real-time connection with the cloud server, and obtains user information , order information and processing status information are displayed on the host computer interface in real time; Described communication module connects user module and electric control module simultaneously, and communication module is provided with cloud server and 3G router, and cloud server has user database, order database, processing state database and data processing program; Described 3G router is used for realizing cloud server and 3G router. Data transfer between electrical control modules; The electrical control module is connected to the mechanical module, and the electrical control module is provided with a PLC controller, a servo driver and an HMI touch screen; the PLC controller has a built-in motion control module, and the HMI touch screen is connected to the PLC controller through an RS-232 serial port; The mechanical module is provided with a storage area, a linear module, a linear guide rail, a processing station, a vacuum chuck, a laser, a storage area and a load base; the storage area is provided with three raw material ports, and each raw material port has a A photoelectric sensor and a propulsion cylinder, according to the color of the material selected by the user, the propulsion cylinder pushes out the corresponding raw material; The linear module is built in two directions of X and Y, and each direction is composed of a single-axis robot connected to a servo motor. Each single-axis robot is equipped with two travel switches and a miniature photoelectric sensor. The photoelectric sensor is used to calibrate the origin of the stroke. One end of the single-axis robot in the X direction is fixed on the slide table of the single-axis robot in the Y direction, and the other end of the single-axis robot in the X direction is fixed on the slide table of the linear guide rail. The linear guide rail is used to balance the linear The center of gravity of the module avoids motion jitter; The processing station includes a biaxial cylinder, a clamping cylinder, a rotating cylinder and a processing plane. The clamping cylinder clamps the raw material, cooperates with the processing plane to keep the raw material at a level, and the clamping cylinder is connected to the rotating cylinder to realize the horizontal turning of the raw material; The vacuum chuck and the laser are fixed on different positions of the sliding table of the single-axis robot in the X direction, and can move freely in the stroke plane. The vacuum chuck absorbs raw materials from the storage area and moves them to the processing station. Move to the out-of-warehouse area, the vacuum suction cup is connected to the cylinder to move up and down, and the laser is connected to the output end of the PLC controller; The outbound area is fixed on the edge of the load base.