Mini production line mes practical platform and method for course experimental teaching

Abstract

This invention relates to a micro-production line MES training platform and method for course experimental teaching. It includes a frame with an operating table. A transmission mechanism is located in the center of the operating table. Around the transmission mechanism are sequentially arranged a simulated turning tool mechanism, a simulated boring and milling mechanism, a simulated pressing mechanism, a finished product storage mechanism, a height detection system, a robotic arm, and a vision inspection system. An MES system is located on one side of the frame. The training platform is a mechatronics device. The transmission mechanism is equipped with RFID tags. Each simulated mechanism and detection system has an RFID tag reader installed in front of it. The RFID tags record the required processing steps for the workpiece, realizing intelligent manufacturing. This invention's micro-production line MES training platform for course experimental teaching has a reasonable layout and compact structure. It can deepen the understanding of actual manufacturing production by simulating various processing steps in actual production, thereby improving teaching effectiveness.

Description

Technical Field

[0001] This invention relates to the field of teaching instruments, and in particular to a miniature production line MES training platform and method for course experimental teaching. Background Technology

[0002] The Miniature Production Line MES Training Platform is a miniature platform for teaching experiments, representing a micro-workshop production line. In traditional teaching simulations, production line design, mechanical structure analysis, automation control, and data acquisition are all conducted separately, making it difficult to form a systematic concept. This Miniature Production Line MES Training Platform enables system-level teaching, allowing students to understand modern industrial production models and improve their systems thinking abilities.

[0003] Currently, there has been some research on intelligent training platforms, for example: The patent application with application number CN202220409481.1 proposes a mechatronics intelligent training platform device, which includes a feeding workstation, a capping and screwing workstation, an inspection and sorting workstation, a robot handling workstation, and an intelligent warehousing workstation. It has an intuitive product output function, and the equipment has comprehensive safety protection, which can improve students' practical operation level.

[0004] Patent application number CN202410995452.1 proposes a production line-level intelligent training platform and method, which integrates workshop manufacturing execution intelligent control system, robot intelligent basic training system, digital steel plate yard training system, laser cutting robot training system, sorting robot training system, welding robot training system, intelligent logistics control training system, and centralized control center display system, etc., to create an integrated training system that combines process, equipment and workshop manufacturing execution intelligent control system, providing a training platform for highly skilled comprehensive personnel in ship intelligent manufacturing.

[0005] Patent application number CN201910917087.1 proposes an intelligent manufacturing integrated training platform, which includes a single-layer double-row circular conveyor line, an assembly station, and a seven-axis robot system. Along the first side conveyor line, an automated warehouse, a virtual machine control platform, an HMI control interaction system, and a small precision lathe are arranged in sequence. Along the second side conveyor line, a small precision machining center, a robot gripping quick-change workstation, a 3D printer, a coordinate measuring machine, and a measuring station are arranged in sequence. A small connecting station is set between the assembly station and the automated warehouse.

[0006] Patent application number 201921873602.2 proposes an intelligent manufacturing training platform for teaching, which solves the problems of existing training platforms that can automate nut assembly typically having complex structures, large sizes, and high teaching costs. It includes a workbench and a PLC controller. A robotic arm is mounted on the workbench, and a three-dimensional warehouse, a conveying mechanism, a tightening mechanism, and a finished product placement platform are arranged sequentially around the robotic arm. The three-dimensional warehouse includes shelves and a stacker crane.

[0007] The problems with these existing technologies are that some training platforms are too large and not suitable for teaching experiments, and a single production line can no longer fully meet the needs of modern production. Currently, production activities usually involve the mixed production of multiple products on the same production line, requiring production scheduling to achieve efficient production.

[0008] Therefore, there is an urgent need for a training platform that can support mixed production of multiple production lines, simulate the production scheduling of real industrial production, enhance students' understanding of modern industry, and provide a new teaching platform. Summary of the Invention

[0009] In view of this, the purpose of this invention is to provide a well-designed and compact micro-production line MES training platform and method for course experimental teaching, which can deepen the understanding of actual manufacturing production and improve teaching effectiveness by simulating various processing procedures in actual production.

[0010] The present invention is implemented using the following scheme: a micro production line MES training platform for course experimental teaching, including a frame with an operating table, a transmission mechanism in the middle of the operating table, a simulated turning tool mechanism, a simulated boring and milling mechanism, a simulated pressing mechanism, a finished product storage mechanism, a height detection system, a robot arm and a vision inspection system arranged sequentially around the transmission mechanism, and an MES system on one side of the frame.

[0011] Furthermore, the training platform is a mechatronics device. The transmission mechanism is equipped with RFID tags. Each of the simulated turning tool mechanism, simulated boring and milling mechanism, simulated pressing mechanism, finished product storage mechanism, height detection system, robotic arm, and vision inspection system has an RFID tag reader installed. The RFID tags record the required processes for the workpiece. The transmission mechanism will sequentially move the workpiece to the corresponding process, completing the workpiece production simulation. The MES system is used to uniformly schedule the operation of each simulated process, transmission mechanism, and robotic arm. It records information such as raw material inventory, finished product inventory, and the quantity of defective finished products, as well as equipment status, to adjust workpiece production and achieve intelligent manufacturing.

[0012] Furthermore, the simulated boring and milling mechanism includes a boring and milling frame, a boring and milling assembly, and a lifting assembly. The boring and milling assembly includes a first motor, a first coupling, a tool holder, a spring collet, a collet nut, and a milling cutter arranged sequentially from top to bottom. The lifting assembly includes a second motor, a first ball screw, a lifting seat, and a material support plate.

[0013] Furthermore, the simulated lathe tool mechanism includes a tool frame, a simulated rotating device, and a tool feed device. The simulated rotating device includes a mounting block, an electric turntable, an electric chuck, and a first motor base. The electric turntable has a mounting block on one side that is bolted to the tool frame. The electric turntable and the tool frame are fixedly connected to the frame via the first motor base. The tool feed device includes a first guide rail and a first slider that reciprocates along the first guide rail driven by a second ball screw. A tool holder is mounted on the first slider, and a lathe tool is connected to the tool holder. The end of the second ball screw is coaxially connected to the spindle of a third motor via a second coupling.

[0014] Furthermore, the simulated pressing mechanism includes a pressing frame, a first pressing table driven to rise and fall by a third ball screw, and a first material table located below the first pressing table. The upper end of the third ball screw is coaxially connected to the main shaft of the fourth motor through a third coupling. The pressing frame is provided with second guide rails parallel to the third ball screw on both sides, and the first pressing table is connected with second sliders that slide in cooperation with the second guide rails on both sides.

[0015] Furthermore, the vision inspection system includes a vision inspection stand, an industrial-grade high-definition camera, a light source, and a material tray. The vision inspection stand includes a vision inspection system base and a vertical adjustment rod fixedly connected to the base. Two horizontal adjustment blocks, one above the other and one below, are fitted onto the vertical adjustment rod and can slide relative to it vertically. Horizontal adjustment rods are connected to the two horizontal adjustment blocks, and locking blocks are connected to the ends of the horizontal adjustment rods. The upper locking block is bolted to a camera mounting bracket, and the industrial-grade high-definition camera is mounted on the camera mounting bracket. The lower locking block is bolted to a mounting plate, and the mounting plate is bolted to a light source mounting bracket. The light source is mounted on the light source mounting bracket, and the material tray is located below the light source mounting bracket.

[0016] Furthermore, the height detection system includes a height detection platform, a second material platform is provided above the height detection platform, a second pressing platform driven to rise and fall by a cylinder is provided above the second material platform, a back plate located behind the second material platform is connected above the height detection platform, third guide rails are provided on both sides of the back plate and arranged vertically, third sliders are connected on both sides of the second pressing platform and slide in cooperation with the third guide rails, and a contact displacement sensor for sensing the second pressing platform is provided above the height detection platform.

[0017] Furthermore, the finished product storage mechanism includes a storage compartment and a base plate with foot supports at the bottom. The base plate is provided with a movable seat that can move laterally back and forth relative to the base plate. The movable seat is provided with an electric linear slide table arranged longitudinally. A gripper mounting frame is connected to the slide table of the electric linear slide table. A pneumatic gripper for gripping materials is installed on the gripper mounting frame.

[0018] Furthermore, the movable seat is driven to reciprocate by a fifth motor through a fourth ball screw. The end of the fourth ball screw is coaxially connected to the main shaft of the fifth motor through a fourth coupling. A fourth guide rail is provided on the base plate, and a fourth slider that slides with the fourth guide rail is provided at the bottom of the movable seat.

[0019] Another technical solution of the present invention: a working method of a micro production line MES training platform for course experimental teaching as described above, comprising the following steps: (1) Visual recognition process: After the workpiece is transported to the visual inspection system at the work station by the transmission mechanism, it is picked up by the robot and placed in the visual inspection system for visual recognition. After the simulated visual recognition is completed, it is picked up by the robot and transferred to the transmission mechanism. (2) Drilling process: After the workpiece is transported to the station of the simulated boring and milling mechanism by the transfer mechanism, it is picked up by the robot and placed in the simulated boring and milling mechanism to simulate the drilling process. After the simulation is completed, it is picked up by the robot and transferred to the transfer mechanism. (3) Turning the outer diameter: After the workpiece is transported to the station where the simulated turning tool mechanism is located by the transfer mechanism, it is picked up by the robot and placed in the simulated turning tool mechanism to simulate the turning of the outer diameter of the workpiece. After the simulated machining is completed, it is picked up by the robot and transferred to the transfer mechanism. (4) Pressing process: After the workpiece is transported to the station of the simulated pressing mechanism by the transmission mechanism, the robot grabs the two parts of the workpiece on the transmission mechanism and places them in the simulated pressing mechanism for pressing. After the simulation is completed, the robot grabs them to the transmission mechanism. (5) Height detection process: After the workpiece is transported to the height detection system station by the transmission mechanism, the robot grabs the workpiece that has been pressed on the transmission mechanism and places it in the height detection system for height accuracy detection after pressing. After the detection is completed, the robot grabs it to the transmission mechanism. (6) Workpiece warehousing process: After high-precision inspection, the workpiece is transferred to the end by the transmission mechanism, and then the finished product storage mechanism picks up the workpiece and places it into the storage warehouse.

[0020] Compared with the prior art, the present invention has the following beneficial effects: The micro production line MES training platform of the present invention for course experimental teaching has a reasonable layout and compact structure. It can deepen the understanding of actual manufacturing production and improve the teaching effect by simulating a variety of processing procedures in actual production.

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through specific embodiments and related drawings. Attached Figure Description

[0022] Figure 1 This is a region allocation diagram according to an embodiment of the present invention; Figure 2 This is an isometric view of an embodiment of the present invention; Figure 3 This is a side view of a simulated boring and milling mechanism according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of the boring and milling assembly of a simulated boring and milling mechanism according to an embodiment of the present invention; Figure 5 This is a side view of the lifting assembly of a simulated boring and milling mechanism according to an embodiment of the present invention; Figure 6 This is a side view of a simulated cutting tool mechanism according to an embodiment of the present invention; Figure 7 This is an isometric view of a simulated pressing mechanism according to an embodiment of the present invention; Figure 8 This is a front view of a simulated pressing mechanism according to an embodiment of the present invention; Figure 9 This is an isometric view of the visual inspection system according to an embodiment of the present invention; Figure 10 This is an isometric view of the height detection system according to an embodiment of the present invention; Figure 11 This is an axonometric view of the finished product storage mechanism according to an embodiment of the present invention; Figure 12 This is a diagram of the MES system interface of the training platform in an embodiment of the present invention; Figure 13 This is a typical result diagram of the axial force in the press-fitting process according to an embodiment of the present invention; Figure 14 This is a side view of the simulated coil in an embodiment of the present invention; Figure 15 This is a simulated stator side view according to an embodiment of the present invention; In the diagram: 1-Frame; 2-Simulated boring and milling mechanism; 21-Boiling and milling machine frame; 22-Drilling assembly; 23-Lifting assembly; 24-First motor; 25-First coupling; 26-Tool holder; 27-Spring collet; 28-Collet nut; 29-End mill; 210-First ball screw; 211-Material support tray; 212-Lifting seat; 213-Second motor; 3-Simulated turning tool mechanism; 31-Mounting block; 32-Electric turntable; 33-First motor base; 34-Electric collet; 35-Second ball screw; 36-Ball screw support seat; 37-Tool table; 38-Lathe tool; 39-First slider; 310-First guide rail; 311-Second coupling; 312-Third motor; 313-Second motor mount; 314-Lathe tool frame; 4-Simulated pressing mechanism; 41-Pressure frame; 42-Fourth motor; 43-Second guide rail; 44-Third ball screw; 45-Upper mounting bracket; 46-Second slider; 47-First pressing table; 48-Lower mounting bracket; 49-First material table; 410-Third coupling; 411-Screw nut seat; 5-Vision inspection system; 51 52-Vertical Adjustment Rod; 53-Horizontal Adjustment Block; 54-Horizontal Adjustment Rod; 55-Locking Block; 56-Camera Mounting Bracket; 57-Industrial Grade HD Camera; 58-Mounting Plate; 59-Light Source Mounting Bracket; 510-Vision Inspection System Base; 511-Material Tray; 6-Robot Arm; 7-Height Detection System; 71-Cylinder; 72-Cylinder Frame; 73-Bearing Block; 74-Back Plate; 75-Second Pressing Table; 76-Third Slider; 77-Third Guide Rail; 78-Contact Height Sensor; 79-Second Material Table; 710-Upper plate; 711-Column; 712-Base plate; 8-Transmission mechanism; 9-Finished product storage mechanism; 91-Pneumatic gripper; 92-Material; 93-Gripper mounting assembly; 94-Reinforcing rib; 95-Slide table; 96-Electric guide rail assembly; 97-Fourth guide rail; 98-Ball screw assembly; 99-Foot support; 910-Fourth coupling; 911-Fifth motor; 912-Third motor base; 913-Storage compartment; 10-MES system; 11-Simulated brushless motor workpiece; 111-Simulated coil; 112-Simulated stator. Detailed Implementation

[0023] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] like Figures 1-11 As shown, a micro production line MES training platform for course experimental teaching includes a frame 1 with an operating table. A transmission mechanism 8 is provided in the middle of the operating table. A simulated turning tool mechanism 3, a simulated boring and milling mechanism 2, a simulated pressing mechanism 4, a finished product storage mechanism 9, a height detection system 7, a robot arm 6, and a vision detection system 5 are arranged sequentially around the transmission mechanism 8.

[0026] This invention can simulate various processes in actual production (including drilling, turning outer diameter, pressing, visual inspection, and height detection), allowing students to independently design processes for parts, collect and process production data, and optimize production scheduling. This deepens their understanding of actual manufacturing and cultivates innovative talents in intelligent manufacturing. It solves the problem that students do not have a deep understanding of the connotation of new modern industrial production and lack training in overall and collaborative analysis and problem-solving. It is particularly suitable for experimental teaching in intelligent manufacturing courses.

[0027] In this embodiment, both the transmission mechanism 8 and the robotic arm 6 are existing technologies, and their structures and principles will not be specifically described here. The robotic arm 6 and the transmission mechanism 8 can adopt the structures disclosed in Chinese Patent CN211062332U, "An Intelligent Manufacturing Training Platform for Teaching". The transmission mechanism 8 can also adopt an electric linear slide structure, with a tooling plate for placing the workpiece set on the slide.

[0028] The training platform is a mechatronics device. The transmission mechanism is equipped with RFID tags. Each of the simulated turning tool mechanism, simulated boring and milling mechanism, simulated pressing mechanism, finished product storage mechanism, height detection system, robotic arm, and vision inspection system has an RFID tag reader installed. The RFID tags record the required processes for the workpiece. The transmission mechanism will sequentially move the workpiece to the corresponding process, completing the simulated production. The MES system is used to uniformly schedule the operation of each simulated process, transmission mechanism, and robotic arm. It records information such as raw material inventory, finished product inventory, and the quantity of defective products, as well as equipment status, to adjust workpiece production and achieve intelligent manufacturing.

[0029] The circuit structures involved in the aforementioned data collectors and RFID tags are existing technologies and are conventional methods that are easy for those skilled in the art to implement. Therefore, their structures and principles will not be described in detail here.

[0030] In this embodiment, the simulated boring and milling mechanism 2 includes a boring and milling frame 21, a boring and milling assembly 22, and a lifting assembly 23. The boring and milling assembly 22 includes a first motor 24, a first coupling 25, a tool holder 26, a spring collet 27, a collet nut 28, and a milling cutter 29 arranged sequentially from top to bottom. The spindle of the first motor 24 is coaxially connected to the upper end of the tool holder through the first coupling 25, and the lower end of the tool holder is connected to the milling cutter 29 through the spring collet 27 and the collet nut 28. The lifting assembly 23 includes a second motor 213, a first ball screw 210, a lifting seat 212, and a material support plate 211. The lower end of the first ball screw 210 is coaxially connected to the spindle of the second motor 213. A screw nut seat that works in cooperation with the first ball screw 210 is connected to the lifting seat 212, and the material support plate 211 is disposed on the lifting seat 212.

[0031] In this embodiment, the simulated turning tool mechanism 3 includes a turning tool frame 314, a simulated rotating device, and a turning tool feed device. The simulated rotating device includes a mounting block 31, an electric turntable 32, a first motor base 33, and an electric chuck 34. One side of the electric turntable 32 is bolted to the turning tool frame 314, and the other side is fixedly connected to the turning tool frame 314 via the first motor base 33. A turntable motor for driving the electric turntable to rotate is mounted on the first motor base 33. The turntable motor is connected to the electric turntable via a worm gear transmission. The main shaft and worm gear of the turntable motor are coaxially connected by a coupling. The electric turntable 33 is driven by the turntable motor to rotate. The electric chuck 34 is connected to the electric turntable 32 by bolts. The cutting tool feed device includes a first guide rail 310 and a first slider 39 that slides back and forth along the first guide rail 310 driven by a second ball screw 35. A tool holder 37 is installed on the first slider 39, and a cutting tool 8 is connected to the tool holder 37. The end of the second ball screw 35 is coaxially connected to the main shaft of the third motor 312 through a second coupling 311. The first guide rail 310 is mounted on the lead screw support 36 below it. The second ball screw 35 is located above and parallel to the first guide rail 310. The two ends of the second ball screw 35 are rotatably connected to the upper fixing plates at both ends of the lead screw support 36, and one end passes through the fixing plate and is connected to the third motor 312. The third motor 312 is mounted on the second motor base 313 below it. The lower part of the second motor base 313 is bolted to the lathe tool frame 314.

[0032] In this embodiment, the simulated pressing mechanism 4 includes a pressing frame 41, a first pressing table 47 driven to rise and fall by a third ball screw 44, and a first material table 49 located below the first pressing table 47. The upper end of the third ball screw 44 is coaxially connected to the main shaft of the fourth motor 42 via a third coupling 410. The pressing frame 41 is provided with second guide rails 43 parallel to the third ball screw 44 on both sides. The first pressing table 47 is connected with second sliders 46 that slide in cooperation with the second guide rails 43 on both sides. The first pressing table 47 is provided with a screw nut seat 411 that works in cooperation with the third ball screw 44. The front side of the pressing frame 41 is provided with an upper mounting bracket 45 and a lower mounting bracket 48 by bolts. The two ends of the third ball screw 44 are rotatably connected to the upper and lower mounting brackets.

[0033] In this embodiment, the visual inspection stand includes a visual inspection system base 510 and a vertical adjustment rod 51 fixedly connected to the base. Two horizontal adjustment blocks 52, one above the other and one below, are fitted onto the vertical adjustment rod 51 and can slide relative to it vertically. Each horizontal adjustment block 52 has a first connecting hole through which the vertical adjustment rod 51 passes. A first locking screw, extending into the first connecting hole and tightening the vertical adjustment rod 51, is connected to the side of each horizontal adjustment block 52. A horizontal adjustment rod 53 is connected to the horizontal adjustment block 52. A second connecting hole through which the horizontal adjustment rod 53 passes is also provided on the horizontal adjustment block 52. A second locking screw, extending into the second connecting hole and tightening the vertical adjustment rod 51, is connected to the side of each horizontal adjustment block 52. A locking block 54 is connected to the end of the horizontal adjustment rod 53. A camera mounting bracket 55 is bolted to the upper locking block 54, and the industrial-grade high-definition camera 56 is mounted on the camera mounting bracket 55. The locking block 54 below is connected to the mounting plate 57 by bolts. The mounting plate 57 is connected to the light source mounting bracket 58 by bolts. The light source 59 is mounted on the light source mounting bracket. The material tray 511 is located below the light source mounting bracket 58.

[0034] In this embodiment, the height detection system 7 includes a height detection platform. A second material platform 79 is provided above the height detection platform. A second pressing platform 75, driven to rise and fall by a cylinder 71, is provided above the second material platform 79. The telescopic rod of the cylinder 71 is connected to the second pressing platform 75 through a load-bearing block 73. A back plate 74 located behind the second material platform 79 is connected above the height detection platform. A cylinder frame 72 is bolted to the top of the back plate 74, and the cylinder 71 is mounted above the cylinder frame 72. Third guide rails 77 are provided on both sides of the back plate 74, arranged vertically. Third sliders 76, which slide and cooperate with the third guide rails 77, are connected to both sides of the second pressing platform 75. A contact displacement sensor 78 for sensing the second pressing platform 75 is provided above the height detection platform.

[0035] In this embodiment, the height detection platform consists of a base plate 712, a column 711, and an upper plate 710.

[0036] In this embodiment, the finished product storage mechanism 9 includes a storage compartment 913 and a base plate with foot supports 99 at the bottom. The storage compartment 913 is located in the middle of the base plate. The base plate is provided with a movable seat that can move laterally back and forth relative to the base plate. The movable seat is provided with an electric linear slide 96 arranged longitudinally. A gripper mounting frame 93 is connected to the slide 95 of the electric linear slide 96. A pneumatic gripper 91 for gripping materials 92 is installed on the gripper mounting frame 93.

[0037] In this embodiment, the movable seat is driven to reciprocate by a fifth motor 911 via a fourth ball screw 98. The end of the fourth ball screw 98 is coaxially connected to the main shaft of the fifth motor 911 via a fourth coupling 910. A fourth guide rail 97 is provided on the base plate, and a fourth slider that slides in cooperation with the fourth guide rail 97 is provided at the bottom of the movable seat.

[0038] In this embodiment, an MES system 10 is also provided on the side of the rack 1.

[0039] The simulated boring and milling mechanism 2 is used to simulate the drilling process in real workpiece production. After the workpiece is transported to the station of the simulated boring and milling mechanism through the transmission mechanism 8, it is picked up by the robot arm 6 and placed on the material tray 211. After the workpiece is lifted to a certain height, the corresponding motor drives the milling cutter to rotate to simulate the drilling process. After the simulation is completed, the robot arm picks it up to the transmission mechanism 8 and waits for the next operation.

[0040] The simulated turning tool mechanism 3 is used to simulate the turning of the outer diameter in the production of real workpieces. After the workpiece is transported to the station of the simulated turning tool mechanism 3 through the transfer mechanism 8, it is picked up by the robot arm 6 and placed in the electric chuck 34. Then, the electric chuck 34 and the workpiece are rotated by the motor. Subsequently, the simulated turning tool is fed by the corresponding motor to simulate the turning of the outer diameter of the workpiece. After the simulated machining is completed, it is picked up by the robot arm and transferred to the transfer mechanism 8 to wait for the next operation.

[0041] The simulated pressing mechanism 4 is used to press the two parts of the workpiece together to achieve a fixed fit. After the robot arm 6 picks up the two parts of the workpiece from the transfer mechanism 8, it places them on the first material table 49 in sequence and presses them together. After the simulation is completed, the robot arm picks them up and transfers them to the transfer mechanism 8, waiting for the next operation.

[0042] The vision inspection system 5 is used to identify workpieces. The main actuator of the vision inspection system 5 is a high-definition camera. After issuing a library command under the MES system, the robot arm picks up the corresponding workpiece and transfers it to the transmission mechanism 8.

[0043] The height detection system 7 is used to detect the assembly accuracy of the workpiece after pressing. The height detection system 7 uses a contact displacement sensor to measure the height. The first data is detected when the second pressing table 75 first touches the displacement sensor, and the second data is detected when the second pressing table 75 touches the workpiece. The actual height of the workpiece can be detected. After the detection is completed, the robot arm grabs the workpiece to the transmission mechanism 8, waiting for the next operation.

[0044] The transfer mechanism 8 is used to transfer workpieces between different simulated processes. The two transfer mechanisms designed in this invention can realize the production scheduling of workpieces with different production processes. After the workpiece completes all the set processes, the finished product storage mechanism 9 is transferred to the end by the transfer mechanism, and then the chuck of the finished product storage mechanism picks up the workpiece. The movement of the chuck in the X and Y directions is controlled by two tracks to pick up the workpiece and put it into the storage bin, completing one workpiece simulation. The robot arm 6, in cooperation with the transfer mechanism 8, completes the flow of workpieces between various processes.

[0045] The MES system 10, the robot 6, and various mechanisms and detection systems communicate and control each other through the PLC, and transmit the data to the MES system. The MES system can uniformly schedule the production plan. The photoelectric sensor at the front end collects the process information of the workpiece arrival. The robot records the information through the program. Both the sensor and the robot are connected to the PLC. The PLC communicates with the MES system, realizing the closed loop of the MES system controlling the PLC and the PLC's data information being fed back to the MES system.

[0046] A method for operating a miniature production line MES training platform for course experimental teaching as described above includes the following steps: (1) Visual recognition process: After the workpiece is transported to the visual inspection system at the work station by the transmission mechanism, it is picked up by the robot and placed in the visual inspection system for visual recognition. After the simulated visual recognition is completed, it is picked up by the robot and transferred to the transmission mechanism. (2) Drilling process: After the workpiece is transported to the station of the simulated boring and milling mechanism by the transfer mechanism, it is picked up by the robot and placed in the simulated boring and milling mechanism to simulate the drilling process. After the simulation is completed, it is picked up by the robot and transferred to the transfer mechanism. (3) Turning the outer diameter: After the workpiece is transported to the station where the simulated turning tool mechanism is located by the transfer mechanism, it is picked up by the robot and placed in the simulated turning tool mechanism to simulate the turning of the outer diameter of the workpiece. After the simulated machining is completed, it is picked up by the robot and transferred to the transfer mechanism. (4) Pressing process: After the workpiece is transported to the station of the simulated pressing mechanism by the transmission mechanism, the robot grabs the two parts of the workpiece on the transmission mechanism and places them in the simulated pressing mechanism for pressing. After the simulation is completed, the robot grabs them to the transmission mechanism. (5) Height detection process: After the workpiece is transported to the height detection system station by the transmission mechanism, the robot grabs the workpiece that has been pressed on the transmission mechanism and places it in the height detection system for height accuracy detection after pressing. After the detection is completed, the robot grabs it to the transmission mechanism. (6) Workpiece warehousing process: After high-precision inspection, the workpiece is transferred to the end by the transmission mechanism, and then the finished product storage mechanism picks up the workpiece and places it into the storage warehouse.

[0047] The process is described below through specific embodiments.

[0048] Using a simulated brushless motor assembly as a typical component of this application, the simulated brushless motor consists of a simulated coil and a simulated stator. The simulated coil and the simulated stator are tightly connected by pressing, and the operation process of the simulated brushless motor will be described in detail below.

[0049] First, the MES system issues production instructions. The vision inspection system has determined the positions of the simulated coil and simulated stator through image recognition and recorded their coordinates. The robot arm, according to these coordinates, first grasps the simulated stator onto the simulated boring and milling mechanism. After completing the drilling simulation, the robot arm again grasps the simulated stator onto the simulated turning tool mechanism. During machining, it grasps the simulated coil onto the transfer mechanism, which then transmits the simulated coil to the simulated pressing mechanism. After the simulated stator completes the turning simulation, the robot arm first grasps the simulated stator onto the simulated pressing process, and then places the simulated coil from the transfer mechanism on top of the simulated stator. After completing this series of actions, the simulated pressing mechanism starts, pressing and assembling the two parts of the product into a simulated brushless motor. At this point, the workpiece production is complete.

[0050] Then, precision testing is performed. The robotic arm picks up the workpiece that has completed the simulated pressing process and places it into the height detection system. After the height detection system completes the test, it transmits the data to the MES system to realize the defect analysis of the workpiece.

[0051] Finally, the finished products will be stored in the warehouse. A robotic arm will pick up the finished product from the height detection system and transfer it to the conveyor mechanism. The conveyor mechanism will then transfer the finished product to the finished product storage mechanism. The finished product storage mechanism will use pneumatic grippers to pick up the workpiece and place it in the storage bin, completing one simulation.

[0052] Unless otherwise stated, if any of the technical solutions disclosed in this invention specify a numerical range, then the disclosed numerical range is a preferred numerical range. Anyone skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this invention discloses only some numerical values ​​to illustrate the technical solutions of this invention. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this invention.

[0053] If this invention discloses or relates to mutually fixedly connected components or structural parts, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured in one piece using a casting process) (except where it is obviously impossible to use an integral molding process).

[0054] In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in this invention to indicate positional relationships or shapes include states or shapes that are similar to, close to, or approximate with those states or shapes.

[0055] Any component provided by this invention can be assembled from multiple individual components or can be a single component manufactured by a one-piece molding process.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A miniature production line MES training platform for course experimental teaching, characterized in that: The machine includes a frame with an operating table. A transmission mechanism is located in the middle of the operating table. A simulated turning tool mechanism, a simulated boring and milling mechanism, a simulated pressing mechanism, a finished product storage mechanism, a height detection system, a robot arm, and a vision inspection system are arranged sequentially around the transmission mechanism. A MES system is located on one side of the frame.

2. The micro-production line MES training platform for course experimental teaching according to claim 1, characterized in that: The transmission mechanism is equipped with RFID tags, and the simulated turning tool mechanism, simulated boring and milling mechanism, simulated pressing mechanism, finished product storage mechanism, height detection system, robot arm and vision inspection system are respectively equipped with RFID tag collectors.

3. The micro-production line MES training platform for course experimental teaching according to claim 1, characterized in that: The simulated boring and milling mechanism includes a boring and milling frame, a boring and milling assembly, and a lifting assembly. The boring and milling assembly includes, from top to bottom, a first motor, a first coupling, a tool holder, a spring collet, a collet nut, and a milling cutter. The lifting assembly includes a second motor, a first ball screw, a lifting seat, and a material support plate.

4. The micro-production line MES training platform for course experimental teaching according to claim 1, characterized in that: The simulated lathe tool mechanism includes a tool frame, a simulated rotating device, and a tool feed device. The simulated rotating device includes a mounting block, an electric turntable, an electric chuck, and a first motor base. One side of the electric turntable is provided with a mounting block that is bolted to the tool frame, and the other side of the electric turntable is fixedly connected to the tool frame via the first motor base. A turntable motor for driving the electric turntable to rotate is mounted on the first motor base. The tool feed device includes a first guide rail and a first slider that reciprocates along the first guide rail driven by a second ball screw. A tool holder is mounted on the first slider, and a lathe tool is connected to the tool holder. The end of the second ball screw is coaxially connected to the spindle of a third motor via a second coupling.

5. The micro-production line MES training platform for course experimental teaching according to claim 1, characterized in that: The simulated pressing mechanism includes a pressing frame, a first pressing table driven to rise and fall by a third ball screw, and a first material table located below the first pressing table. The upper end of the third ball screw is coaxially connected to the main shaft of the fourth motor through a third coupling. The pressing frame is provided with second guide rails parallel to the third ball screw on both sides, and the first pressing table is connected with second sliders that slide in cooperation with the second guide rails on both sides.

6. The micro-production line MES training platform for course experimental teaching according to claim 1, characterized in that: The vision inspection system includes a vision inspection stand, an industrial-grade high-definition camera, a light source, and a material tray. The vision inspection stand includes a vision inspection system base and a vertical adjustment rod fixedly connected to the base. Two horizontal adjustment blocks, one above the other and one below, are fitted onto the vertical adjustment rod and can slide relative to it vertically. Horizontal adjustment rods are connected to the two horizontal adjustment blocks, and locking blocks are connected to the ends of the horizontal adjustment rods. The upper locking block is bolted to a camera mounting bracket, and the industrial-grade high-definition camera is mounted on the camera mounting bracket. The lower locking block is bolted to a mounting plate, and the mounting plate is bolted to a light source mounting bracket, and the light source is mounted on the light source mounting bracket. The material tray is located below the light source mounting bracket.

7. The micro-production line MES training platform for course experimental teaching according to claim 1, characterized in that: The height detection system includes a height detection platform, a second material platform above the height detection platform, a second pressing platform driven to rise and fall by a cylinder above the second material platform, a back plate connected above the height detection platform and located behind the second material platform, third guide rails arranged vertically on both sides of the back plate, third sliders that slide in cooperation with the third guide rails on both sides of the second pressing platform, and a contact displacement sensor for sensing the second pressing platform above the height detection platform.

8. The micro-production line MES training platform for course experimental teaching according to claim 1, characterized in that: The finished product storage mechanism includes a storage compartment and a base plate with foot supports at the bottom. The base plate is equipped with a movable seat that can move laterally back and forth relative to the base plate. The movable seat is equipped with an electric linear slide table arranged longitudinally. A gripper mounting frame is connected to the slide table of the electric linear slide table. A pneumatic gripper for gripping materials is installed on the gripper mounting frame.

9. The micro-production line MES training platform for course experimental teaching according to claim 7, characterized in that: The movable seat is driven to reciprocate by a fifth motor through a fourth ball screw. The end of the fourth ball screw is coaxially connected to the main shaft of the fifth motor through a fourth coupling. A fourth guide rail is provided on the base plate, and a fourth slider is provided at the bottom of the movable seat to slide in cooperation with the fourth guide rail.

10. A method for operating a micro-production line MES training platform for course experimental teaching as described in claim 1, characterized in that: Includes the following steps: (1) Visual recognition process: After the workpiece is transported to the visual inspection system at the work station by the transmission mechanism, it is picked up by the robot and placed in the visual inspection system for visual recognition. After the simulated visual recognition is completed, it is picked up by the robot and transferred to the transmission mechanism. (2) Drilling process: After the workpiece is transported to the station of the simulated boring and milling mechanism by the transfer mechanism, it is picked up by the robot and placed in the simulated boring and milling mechanism to simulate the drilling process. After the simulation is completed, it is picked up by the robot and transferred to the transfer mechanism. (3) Turning the outer diameter: After the workpiece is transported to the station where the simulated turning tool mechanism is located by the transfer mechanism, it is picked up by the robot and placed in the simulated turning tool mechanism to simulate the turning of the outer diameter of the workpiece. After the simulated machining is completed, it is picked up by the robot and transferred to the transfer mechanism. (4) Pressing process: After the workpiece is transported to the station of the simulated pressing mechanism by the transmission mechanism, the robot grabs the two parts of the workpiece on the transmission mechanism and places them in the simulated pressing mechanism for pressing. After the simulation is completed, the robot grabs them to the transmission mechanism. (5) Height detection process: After the workpiece is transported to the height detection system station by the transmission mechanism, the robot grabs the workpiece that has been pressed on the transmission mechanism and places it in the height detection system for height accuracy detection after pressing. After the detection is completed, the robot grabs it to the transmission mechanism. (6) Workpiece warehousing process: After high-precision inspection, the workpiece is transferred to the end by the transmission mechanism, and then the finished product storage mechanism picks up the workpiece and places it into the storage warehouse.

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