Embedded dual-system control practical workbench with PLC

Abstract

The utility model belongs to the technical field of teaching equipment, disclose a kind of embedded and PLC double system control practical training workstation, including practical training platform, and practical training platform is provided with PLC system and embedded system;PLC system includes PLC controller, three-axis cartesian coordinate robot, top material feeding mechanism, bottom material feeding mechanism, assembly station and stacking station, and PLC controller is electrically connected with three-axis cartesian coordinate robot, top material feeding mechanism, bottom material feeding mechanism respectively;Embedded system includes embedded system controller, four-axis mechanical arm robot, visual detection mechanism, conveying unit and two-axis right-angle engraving robot, and embedded system controller is electrically connected with four-axis mechanical arm robot, visual detection mechanism and two-axis right-angle engraving robot respectively;PLC controller and embedded system controller are connected in two-way communication, and the utility model uses double system collaborative control, satisfies the new talent training demand of the deep integration of "embedded + PLC", soft and hard collaborative in intelligent manufacturing era.

Description

Technical Field

[0001] This utility model relates to the field of teaching equipment technology, and in particular to a training workbench with embedded and PLC dual-system control. Background Technology

[0002] Currently, most training workstations use single-system control, with training content focused on only a single system, resulting in limited and monotonous training content. These single-system control training workstations mainly fall into the following categories:

[0003] 1. Embedded Single-System Training Platform: Composed of a microcontroller or ARM core board, DuPont wires, breadboard, sensor / actuator modules, and low-voltage power supply, it is flexible to assemble and disassemble, inexpensive, and can be quickly adapted to different courses and competitions. However, due to the lack of industrial-grade isolation, high-power drive, and standard communication interfaces, when facing high-power loads, complex motion control, or real-time Ethernet protocols, additional expansion boards or external drivers are required, resulting in a serious disconnect between system stability, anti-interference capabilities, and industrial application scenarios.

[0004] 2. PLC Single-System Training Platform: Based on a programmable logic controller (PLC), and equipped with digital / analog I / O modules, relays, buttons, indicator lights, and a perforated board / profile frame, it allows for the intuitive construction of typical industrial control objects such as conveyor belts and traffic lights. While it demonstrates robust performance in logic control, fault tolerance, and industrial standard interfaces, it requires external industrial PCs, vision modules, or communication gateways when involving image processing, edge computing, complex algorithms, or wireless communication. This leads to a rapid increase in system size and cost, and poor program portability between different PLC brands, making standardization difficult.

[0005] 3. "External" Hybrid Training Platform: Essentially, this is an embedded or PLC single-system platform that achieves "pseudo-dual-system" functionality through external expansion. This involves placing a Raspberry Pi or embedded gateway next to the PLC platform, or attaching a miniature PLC expansion box next to the embedded platform. Because the two systems are independent, power supplies, communication protocols, and data interfaces all require additional conversion. Overall stability is significantly affected by peripheral devices, and maintenance workload increases exponentially with age, making it difficult to guarantee teaching efficiency and experimental safety.

[0006] In summary, while single-system control training platforms still have certain advantages in introductory teaching and low-cost experiments, their inherent defects of "single core, external patchwork, and fragmented scenarios" make it difficult to meet the new talent training needs of the intelligent manufacturing era for deep integration of "embedded + PLC" and hardware-software synergy.

[0007] To address this, a dual-system control training platform combining embedded systems and PLC is proposed. Utility Model Content

[0008] The purpose of this invention is to provide an embedded and PLC dual-system control training workbench, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0009] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0010] An embedded and PLC dual-system control training workbench includes a training platform on which a PLC system and an embedded system are installed.

[0011] The PLC system includes a PLC controller, a three-axis Cartesian robot, a top feeding mechanism, a bottom feeding mechanism, an assembly table, and a palletizing table. The PLC controller is electrically connected to the three-axis Cartesian robot, the top feeding mechanism, and the bottom feeding mechanism, respectively.

[0012] The embedded system includes an embedded system controller, a four-axis robotic arm robot, a vision inspection mechanism, and a two-axis right-angle carving robot. The embedded system controller is electrically connected to the four-axis robotic arm robot, the vision inspection mechanism, and the two-axis right-angle carving robot, respectively.

[0013] The PLC controller and the embedded system controller have a bidirectional communication connection.

[0014] In an embedded and PLC dual-system control training workbench according to the present invention, the three-axis Cartesian coordinate robot includes a first X-axis electric linear module, a support base is fixedly installed on the slide of the first X-axis electric linear module, a first Y-axis electric linear module is fixedly installed on the top of the support base, a lifting cylinder is fixedly installed on the slide of the first Y-axis electric linear module, and a pneumatic gripper is fixedly installed at the bottom of the piston rod of the lifting cylinder.

[0015] In an embedded and PLC dual-system control training workbench according to the present invention, the top feeding mechanism includes a first mounting frame, a first storage rack for storing top material is fixedly mounted on the top of one end of the first mounting frame, a first pushing cylinder for pushing out the bottom top material of the first storage rack is fixedly mounted on the end of the first mounting frame near the first storage rack, a first conveyor belt is rotatably mounted on the first mounting frame near the discharge port of the first storage rack, and a first motor for driving the first conveyor belt to rotate is fixedly mounted on the bottom of one end of the first mounting frame.

[0016] In an embedded and PLC dual-system control training workbench according to the present invention, the bottom material feeding mechanism includes a second mounting frame, a second storage rack for storing bottom material is fixedly mounted on the top of the second mounting frame, and a second pushing cylinder capable of pushing out the bottom material at the bottom of the second storage rack is fixedly mounted on one end of the second mounting frame near the second storage rack.

[0017] In an embedded and PLC dual-system control training workbench according to the present invention, the vision inspection mechanism includes a pole, and a vision inspection camera is fixedly installed on the top of the pole.

[0018] An embedded and PLC dual-system control training workbench according to the present invention further includes a conveying unit. The conveying unit includes a third mounting frame, on which a second conveyor belt is rotatably mounted. A second motor for driving the second conveyor belt to rotate is fixedly mounted at one end of the third mounting frame, and the upright is disposed at one end of the third mounting frame.

[0019] In an embedded and PLC dual-system control training workbench according to the present invention, the two-axis right-angle engraving robot includes a fourth mounting frame, a second X-axis electric linear module is fixedly mounted on the top of the fourth mounting frame, a second Y-axis electric linear module is fixedly mounted on the slide of the second X-axis electric linear module, and a laser engraving machine is fixedly mounted on the slide of the second Y-axis electric linear module.

[0020] This utility model has at least the following beneficial effects:

[0021] The system adopts dual-system collaborative control to meet the new talent training needs of the intelligent manufacturing era for deep integration of "embedded + PLC" and software-hardware synergy. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the three-axis Cartesian coordinate robot of this utility model;

[0026] Figure 4 This is a schematic diagram of the bottom material feeding mechanism of this utility model;

[0027] Figure 5 This is a schematic diagram of the top feeding mechanism of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the visual inspection mechanism of this utility model;

[0029] Figure 7 This is a structural schematic diagram of the two-axis right-angle engraving robot of this utility model.

[0030] Explanation of icon numbers:

[0031] 1. Training platform;

[0032] 2. PLC system;

[0033] 201. Three-axis Cartesian coordinate robot; 2011. First X-axis electric linear module; 2012. Support base; 2013. First Y-axis electric linear module; 2014. Lifting cylinder; 2015. Pneumatic gripper;

[0034] 202. Top feeding mechanism; 2021. First mounting frame; 2022. First storage rack; 2023. First pushing cylinder; 2024. First conveyor belt; 2025. First motor;

[0035] 203. Bottom material feeding mechanism; 2031. Second mounting frame; 2032. Second storage rack; 2033. Second pusher cylinder;

[0036] 204. Assembly table;

[0037] 205. Palletizing table;

[0038] 3. Embedded systems;

[0039] 301. Four-axis robotic arm robot;

[0040] 302. Visual inspection mechanism; 3021. Third mounting frame; 3022. Second conveyor belt; 3023. Second motor; 3024. Upright pole; 3025. Visual inspection camera;

[0041] 303. Two-axis right-angle engraving robot; 3031. Fourth mounting bracket; 3032. Second X-axis electric linear module; 3033. Second Y-axis electric linear module; 3034. Laser engraving machine. Detailed Implementation

[0042] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0043] Please refer to Figures 1 to 7 As shown in the embodiments of this utility model,

[0044] An embedded and PLC dual-system control training workbench includes a training platform 1, on which a PLC system 2 and an embedded system 3 are installed;

[0045] PLC system 2 includes a PLC controller, a three-axis Cartesian coordinate robot 201, a top feeding mechanism 202, a bottom feeding mechanism 203, an assembly table 204, and a palletizing table 205. The PLC controller is electrically connected to the three-axis Cartesian coordinate robot 201, the top feeding mechanism 202, and the bottom feeding mechanism 203, respectively.

[0046] Embedded system 3 includes an embedded system controller, a four-axis robotic arm 301, a vision inspection mechanism 302, and a two-axis right-angle carving robot 303. The embedded system controller is electrically connected to the four-axis robotic arm 301, the vision inspection mechanism 302, and the two-axis right-angle carving robot 303, respectively.

[0047] The PLC controller and the embedded system controller have a bidirectional communication connection.

[0048] In this embodiment, the three-axis Cartesian coordinate robot 201 includes a first X-axis electric linear module 2011. A support base 2012 is fixedly installed on the slide of the first X-axis electric linear module 2011. A first Y-axis electric linear module 2013 is fixedly installed on the top of the support base 2012. A lifting cylinder 2014 is fixedly installed on the slide of the first Y-axis electric linear module 2013. A pneumatic gripper 2015 is fixedly installed at the bottom of the piston rod of the lifting cylinder 2014.

[0049] By adopting the above technical solution, the first X-axis electric linear module 2011 drives the support base 2012 to move along the X-axis direction, thereby driving the first Y-axis electric linear module 2013 to adjust its position in the X-axis direction; the first Y-axis electric linear module 2013 drives the lifting cylinder 2014 to move along the Y-axis direction, thereby adjusting its position in the Y-axis direction; the piston rod of the lifting cylinder 2014 extends and retracts, driving the pneumatic gripper 2015 to move up and down; the pneumatic gripper 2015 is used to complete the gripping and releasing of top or bottom materials. This enables the three-axis Cartesian coordinate robot 201 to perform precise handling actions in three-dimensional space.

[0050] In this embodiment, the top feeding mechanism 202 includes a first mounting frame 2021. A first storage rack 2022 for storing top materials is fixedly installed at the top of one end of the first mounting frame 2021. A first pushing cylinder 2023 capable of pushing out the bottom top material of the first storage rack 2022 is fixedly installed at the end of the first mounting frame 2021 near the first storage rack 2022. A first conveyor belt 2024 is rotatably installed at the outlet of the first mounting frame 2021 near the first storage rack 2022. A first motor 2025 for driving the first conveyor belt 2024 to rotate is fixedly installed at the bottom of one end of the first mounting frame 2021.

[0051] By adopting the above technical solution, the first storage rack 2022 is used to stack and store the top material. When feeding is required, the piston rod of the first pushing cylinder 2023 extends to push the bottom top material of the first storage rack 2022 onto the first conveyor belt 2024. Then, the piston rod of the first pushing cylinder 2023 is controlled to reset, and the first motor 2025 drives the first conveyor belt 2024 to rotate, conveying the top material from the discharge port of the first storage rack 2022 to the designated position, thereby realizing the automated continuous feeding of the top material.

[0052] In this embodiment, the bottom material feeding mechanism 203 includes a second mounting frame 2031. A second storage rack 2032 for storing bottom material is fixedly installed on the top of the second mounting frame 2031. A second pushing cylinder 2033 capable of pushing out the bottom material at the bottom of the second storage rack 2032 is fixedly installed at one end of the second mounting frame 2031 near the second storage rack 2032.

[0053] By adopting the above technical solution, the second storage rack 2032 is used to stack and store bottom material. When bottom material needs to be supplied, the piston rod of the second pushing cylinder 2033 extends to push the bottom material at the bottom of the second storage rack 2032 to the designated position, and then controls the piston rod of the second pushing cylinder 2033 to reset. The remaining bottom material in the second storage rack 2032 falls to the bottom under the action of gravity, waiting for the next push, thus realizing the automated intermittent feeding of bottom material.

[0054] In this embodiment, the visual inspection mechanism 302 has a support pole 3024, and a visual inspection camera 3025 is fixedly installed on the top of the support pole 3024.

[0055] In this embodiment, a conveying unit is also included. The conveying unit includes a third mounting frame 3021. A second conveyor belt 3022 is rotatably mounted on the third mounting frame 3021. A second motor 3023 for driving the second conveyor belt 3022 to rotate is fixedly mounted on one end of the third mounting frame 3021. A pole 3024 is disposed at one end of the third mounting frame 3021.

[0056] By adopting the above technical solution, the top material to be inspected is conveyed by the conveying unit, wherein the second motor 3023 drives the second conveyor belt 3022 to rotate, causing the top material to move along the length direction of the third mounting frame 3021; ​​when the top material moves to the inspection area below the upright 3024, the vision inspection camera 3025 acquires images of the top material, and the embedded system controller processes the acquired images to complete the top material quality inspection.

[0057] In this embodiment, the two-axis right-angle engraving robot 303 includes a fourth mounting frame 3031. A second X-axis electric linear module 3032 is fixedly mounted on the top of the fourth mounting frame 3031. A second Y-axis electric linear module 3033 is fixedly mounted on the slide of the second X-axis electric linear module 3032. A laser engraving machine 3034 is fixedly mounted on the slide of the second Y-axis electric linear module 3033.

[0058] By adopting the above technical solution, the fourth mounting bracket 3031 provides a mounting base for the two-axis right-angle engraving robot 303; the second X-axis electric linear module 3032 drives the second Y-axis electric linear module 3033 to move along the X-axis direction, thereby realizing the X-axis position adjustment of the laser engraving machine 3034; the second Y-axis electric linear module 3033 drives the laser engraving machine 3034 to move along the Y-axis direction, thereby realizing the Y-axis position adjustment; under the control of the embedded system controller, the laser engraving machine 3034 completes the laser engraving operation on the top material surface according to the preset pattern or instruction.

[0059] In this embodiment, the embedded system controller can be an STM32F407IGH6 microcontroller from the STM32 series, and the PLC controller can be an S7-300 series PLC controller from Siemens. The embedded system controller and the PLC controller communicate via Ethernet.

[0060] In this embodiment, the PLC system 2 also includes a HIM touch screen display, which is electrically connected to the PLC controller to realize data interaction.

[0061] By adopting the above technical solution, the HIM touch screen, as the human-machine interaction core of PLC system 2, has the following functions:

[0062] 1. Parameter configuration: Allows users to set system operating parameters through touch operation, such as the movement speed of the three-axis Cartesian coordinate robot 201 and the conveyor belt frequency of the top feeding mechanism 202.

[0063] 2. Status monitoring: Real-time display of the operating status of each mechanism, providing intuitive feedback on the system's operating condition through dynamic icons or numerical values.

[0064] 3. Program editing and calling: Supports direct editing of simple PLC control logic on the screen, or calling preset training program templates, simplifying teaching operations.

[0065] 4. Fault Alarm: When an abnormality occurs in PLC system 2, the HIM touch screen immediately displays the fault code and cause, and prompts the troubleshooting steps, improving the safety and debugging efficiency of the training process.

[0066] This structure integrates a HIM touch screen, making the operation of PLC system 2 more intuitive. It eliminates the need for external programming software, adapts to the needs of quick learning and flexible adjustment in teaching scenarios, and enhances the human-computer interaction experience in dual-system control training.

[0067] The specific operation process of this patented embedded and PLC dual-system control training workbench is as follows:

[0068] I. Preliminary Preparations and System Startup

[0069] 1. Equipment Inspection: Confirm that all components on training platform 1 are installed in place, including the three-axis Cartesian coordinate robot 201, top feeding mechanism 202, bottom feeding mechanism 203, assembly table 204, palletizing table 205 and HIM touch screen of PLC system 2, and the four-axis robotic arm robot 301, vision inspection mechanism 302 and two-axis Cartesian engraving robot 303 of embedded system 3. Ensure that the connecting harnesses are not loose.

[0070] 2. Material loading: Stack the top material to be processed onto the first storage rack 2022, stack the bottom material onto the second storage rack 2032, and place the engraving pad in the working area of ​​the two-axis right-angle engraving robot 303.

[0071] 3. System Startup: Connect the main power supply to training platform 1. The PLC controller and embedded system controller will automatically power on, and the HIM touch screen will light up and display the startup interface.

[0072] II. PLC System for Automatic Material Feeding and Handling

[0073] 1. Top material feeding:

[0074] The PLC controller sends a command to the top feeding mechanism 202, the piston rod of the first pushing cylinder 2023 extends, and pushes the bottom of the first storage rack 2022 to the first conveyor belt 2024. Then the piston rod of the first pushing cylinder 2023 resets.

[0075] The first motor 2025 drives the first conveyor belt 2024 to rotate, and the top material is conveyed to the gripping position of the three-axis Cartesian coordinate robot 201. The first motor 2025 then stops.

[0076] Actions of the three-axis Cartesian robot 201: The first X-axis electric linear module 2011 and the first Y-axis electric linear module 2013 work together to move the pneumatic gripper 2015 above the top material; the piston rod of the lifting cylinder 2014 extends, the pneumatic gripper 2015 closes to grab the top material, and the top material is placed on the stacking table 205. Then the three-axis Cartesian robot 201 resets.

[0077] 2. Bottom material feeding:

[0078] The PLC controller instructs the piston rod of the second pusher cylinder 2033 to extend, pushing out the bottom material of the second storage rack 2032. Then, the three-axis Cartesian coordinate robot picks it up and places it on the assembly table 204. The three-axis Cartesian coordinate robot 201 then resets, and the piston rod of the second pusher cylinder 2033 also resets.

[0079] III. Embedded System Engraving and Testing

[0080] 1. Carving work:

[0081] After receiving the signal, the embedded system controller drives the four-axis robotic arm robot 301 to move to the palletizing table 205, grabs the top material and moves it to the working area of ​​the two-axis right-angle engraving robot 303 for positioning, and then controls the four-axis robotic arm robot 301 to reset.

[0082] The two-axis right-angle engraving robot 303 starts: the second X-axis electric linear module 3032 and the second Y-axis electric linear module 3033 move in tandem according to the preset pattern trajectory, and the laser engraving machine 3034 emits a laser to complete the engraving on the top material surface. After the engraving is completed, a "engraving completed" signal is fed back.

[0083] 2. Visual inspection:

[0084] The four-axis robotic arm 301 picks up the engraved material and places it on the second conveyor belt 3022 of the vision inspection mechanism 302;

[0085] The second motor 3023 drives the second conveyor belt 3022 to rotate. When the top material is moved to the detection area below the upright 3024, it stops. The vision inspection camera 3025 captures the image and transmits it to the embedded system controller.

[0086] The embedded system controller analyzes the image. If it is qualified, it controls the second motor 3023 to drive the second conveyor belt 3022 to reverse, and transports the qualified top material to the picking position of the four-axis robotic arm robot 301. The four-axis robotic arm robot 301 moves the engraved qualified top material to the palletizing table 205, then the four-axis robotic arm robot 301 resets and sends a "qualified" signal to the PLC controller.

[0087] IV. Dual-system collaborative assembly and palletizing

[0088] 1. Qualified top material handling:

[0089] After receiving the "qualified" signal, the PLC controller instructs the three-axis Cartesian coordinate robot 201 to move to the palletizing table 205, grab the qualified engraved top material and transfer it to the assembly table 204 for precise alignment and assembly with the bottom material.

[0090] 2. Handling of substandard top materials:

[0091] If the embedded system controller detects that the top material is unqualified, it controls the second motor 3023 to drive the second conveyor belt 3022 to reverse, and transports the unqualified top material to the picking position of the four-axis robotic arm 301. The four-axis robotic arm 301 moves the unqualified top material to the waste collection area (not shown in the figure).

[0092] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A training workbench with both embedded and PLC control systems, characterized in that, It includes a training platform (1), on which a PLC system (2) and an embedded system (3) are installed; The PLC system (2) includes a PLC controller, a three-axis Cartesian robot (201), a top feeding mechanism (202), a bottom feeding mechanism (203), an assembly table (204), and a palletizing table (205). The PLC controller is electrically connected to the three-axis Cartesian robot (201), the top feeding mechanism (202), and the bottom feeding mechanism (203), respectively. The embedded system (3) includes an embedded system controller, a four-axis robotic arm robot (301), a vision inspection mechanism (302), and a two-axis right-angle carving robot (303). The embedded system controller is electrically connected to the four-axis robotic arm robot (301), the vision inspection mechanism (302), and the two-axis right-angle carving robot (303), respectively. The PLC controller and the embedded system controller have a bidirectional communication connection.

2. The embedded and PLC dual-system control training workbench according to claim 1, characterized in that: The three-axis Cartesian coordinate robot (201) includes a first X-axis electric linear module (2011), a support base (2012) is fixedly installed on the slide of the first X-axis electric linear module (2011), a first Y-axis electric linear module (2013) is fixedly installed on the top of the support base (2012), a lifting cylinder (2014) is fixedly installed on the slide of the first Y-axis electric linear module (2013), and a pneumatic gripper (2015) is fixedly installed at the bottom of the piston rod of the lifting cylinder (2014).

3. The embedded and PLC dual-system control training workbench according to claim 1, characterized in that: The top feeding mechanism (202) includes a first mounting frame (2021), a first storage rack (2022) for storing top material is fixedly installed on the top of one end of the first mounting frame (2021), a first pushing cylinder (2023) for pushing out the bottom top material of the first storage rack (2022) is fixedly installed on the end of the first mounting frame (2021) near the first storage rack (2022), a first conveyor belt (2024) is rotatably installed on the first mounting frame (2021) near the discharge port of the first storage rack (2022), and a first motor (2025) for driving the first conveyor belt (2024) to rotate is fixedly installed on the bottom of one end of the first mounting frame (2021).

4. The embedded and PLC dual-system control training workbench according to claim 1, characterized in that: The bottom material feeding mechanism (203) includes a second mounting frame (2031), a second storage rack (2032) for storing bottom material is fixedly installed on the top of the second mounting frame (2031), and a second pusher cylinder (2033) for pushing out the bottom material at the bottom of the second storage rack (2032) is fixedly installed on one end of the second mounting frame (2031) near the second storage rack (2032).

5. The embedded and PLC dual-system control training workbench according to any one of claims 1-4, characterized in that: The visual inspection mechanism (302) includes a pole (3024), and a visual inspection camera (3025) is fixedly installed on the top of the pole (3024).

6. The embedded and PLC dual-system control training workbench according to claim 5, characterized in that: It also includes a conveying unit, which includes a third mounting frame (3021), on which a second conveyor belt (3022) is rotatably mounted. A second motor (3023) for driving the second conveyor belt (3022) to rotate is fixedly mounted at one end of the third mounting frame (3021), and the upright (3024) is disposed at one end of the third mounting frame (3021).

7. The embedded and PLC dual-system control training workbench according to claim 1, characterized in that: The two-axis right-angle engraving robot (303) includes a fourth mounting frame (3031), on the top of the fourth mounting frame (3031) a second X-axis electric linear module (3032) is fixedly mounted, on the slide of the second X-axis electric linear module (3032) a second Y-axis electric linear module (3033) is fixedly mounted, and on the slide of the second Y-axis electric linear module (3033) a laser engraving machine (3034) is fixedly mounted.

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