Practical training assessment device for programmable controller technology application

Abstract

The utility model relates to the technical field of opto-mechatronics, in particular to a programmable controller technology application practical training examination device, which comprises a machine body, an electrical control mechanism arranged on the left side of the top of the machine body, a carrying mechanism arranged in the middle of the top of the machine body, and a well type feeding mechanism arranged in the middle of the top of the machine body. A material conveying and sorting mechanism is arranged on the right side of the top of the machine body, the carrying mechanism comprises a shell, a rotating air cylinder, a telescopic air cylinder, a lifting air cylinder, a pneumatic gripper and a first single-control electromagnetic valve, and the well type feeding mechanism comprises a bottom plate, a well type workpiece library, a single-cylinder air cylinder, a push block, a second single-control electromagnetic valve and a discharging groove. Compared with a practical training examination device in the market, the device has comprehensive functions, can carry out installation, debugging and automatic control practical training of mechatronics equipment, covers a plurality of knowledge points, adopts a modular design, can flexibly combine different modules according to teaching requirements, carries out teaching of a plurality of practical training items, and can meet a plurality of practical training requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of opto-mechatronics integration, in particular to a programmable logic controller (PLC) technology application training and assessment device. Background Art

[0002] The PLC technology training and assessment platform is a device specifically used for teaching and training. It combines electrical engineering, mechatronics technology, optoelectronic sensing technology, Internet of Things technology, industrial Internet technology, optics, machinery, and electronic technology, simulating the environment of an industrial production and manufacturing site, and providing a platform for students to conduct practical operations and skills training.

[0003] The main functions of the platform are as follows: mechatronics equipment assembly and debugging: the platform provides various mechanical components and electrical elements, and students can assemble and debug the equipment according to teaching requirements to learn the structure and principle of mechatronics equipment; PLC programming and control: the platform is equipped with a PLC controller, and students can use programming software to write and debug PLC programs to learn PLC programming and control technology; inverter speed regulation control: the platform is equipped with an inverter, and students can learn the speed regulation principle and application of the inverter and connect and debug the inverter control circuit; sensor application: the platform is equipped with various sensors, and students can learn the principle and application of sensors and conduct sensor detection and control training; pneumatic technology: the platform is equipped with pneumatic components such as cylinders and solenoid valves, and students can learn the principle and application of pneumatic technology and connect and debug the pneumatic control circuit; automation control: the platform can conduct automatic control training for equipment such as feeding mechanisms, conveyor lines, handling manipulators, and sorting mechanisms, and students can learn the design and implementation of an automated control system.

[0004] However, the platforms on the market can also be used for training and assessment. However, the functions that can be controlled by the platforms on the market are single. If students want to learn different mechatronics equipment at the same time, they need different platforms, which are difficult to meet various training needs and are difficult to flexibly combine according to teaching requirements, reducing students' learning interest and learning efficiency. In view of this, a PLC technology application training and assessment device is provided to overcome the above defects. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art and propose a PLC technology application training and assessment device.

[0006] To achieve the above object, the utility model adopts the following technical solutions: a programmable logic controller technology application training and assessment device, wherein an electrical control mechanism is arranged on the left side of the top of the machine body, a handling mechanism is arranged at the middle position of the top of the machine body, a well-type feeding mechanism is arranged in the middle of the top of the machine body, and a material conveying and sorting mechanism is arranged on the right side of the top of the machine body. The handling mechanism includes a housing, a rotary cylinder, a telescopic cylinder, a lifting cylinder, a pneumatic gripper and a first single-control solenoid valve. The well-type feeding mechanism includes a bottom plate, a well-type workpiece library, a single-cylinder cylinder, a push block, a second single-control solenoid valve and a discharge chute. The material conveying and sorting mechanism includes a three-phase asynchronous motor, a first linear conveyor belt, a right-angle bend conveyor belt, a second linear conveyor belt, a material sorting chute, an inductive sensor, a photoelectric sensor and a pen-shaped cylinder.

[0007] As a further description of the above technical solution: the rotary cylinder is arranged on the top of the housing, the output end of the rotary cylinder is fixedly connected with the telescopic cylinder, the output end of the telescopic cylinder is fixedly connected with the lifting cylinder, the output end of the lifting cylinder is fixedly connected with the pneumatic gripper, the first single-control solenoid valve is fixedly connected to the middle of the lower part inside the housing, the well-type workpiece library is fixedly connected to the middle of the left side of the top of the bottom plate, the single-cylinder cylinder is fixedly connected to the middle of the right side of the top of the bottom plate, the output end of the single-cylinder cylinder is fixedly connected with the push block, the second single-control solenoid valve is fixedly connected to the front of the left side of the top of the bottom plate, the discharge chute is fixedly connected to the top end of the left side of the bottom plate, the output end of the three-phase asynchronous motor is fixedly connected with the first linear conveyor belt and the second linear conveyor belt, the right-angle bend conveyor belt is arranged at the top end inside the first linear conveyor belt and the second linear conveyor belt, the material sorting chutes are fixedly connected to the top end of the front side of the first linear conveyor belt and the top end of the right side of the second linear conveyor belt respectively, the pen-shaped cylinders are connected to the top end of the rear side of the first linear conveyor belt and the top end of the left side of the second linear conveyor belt through fixing frames, and the inductive sensor and the photoelectric sensor are fixedly connected to the top end of the fixing frames respectively. Compared with the training and assessment devices on the market, it has comprehensive functions, meets various training requirements, can carry out the installation, debugging and automatic control training of mechatronic equipment, and covers multiple knowledge points.

[0008] As a further description of the above technical solution: the handling mechanism, the well-type feeding mechanism and the material conveying and sorting mechanism are all controlled by a PLC module. The PLC module adopts a Siemens 1200 or 1500 programmable logic controller, and the power supply voltage of the PLC module is DC24V. Students can start the handling mechanism, the well-type feeding mechanism and the material conveying and sorting mechanism on the machine body by programming the PLC module, so as to realize the learning of the controller technology and meet the teaching of various training projects.

[0009] As a further description of the above technical solution: The cooperation of the rotary cylinder, lifting cylinder, telescopic cylinder, pneumatic gripper, and first single-control solenoid valve element is completed by PLC programming. The pneumatic gripper transports the workpiece from the feeding unit to the first linear conveyor belt. When the single-cylinder air cylinder pushes the material onto the discharge chute, the rotary cylinder drives the pneumatic gripper to place the material on the first linear conveyor belt.

[0010] As a further description of the above technical solution: The longitudinal section shape of the push block is a right trapezoid. A through groove is opened at the bottom of the well-type workpiece library from left to right. The width of the through groove on the left side of the bottom of the well-type workpiece library matches the width of the material put into the well-type workpiece library, and the width of the through groove on the right side of the bottom of the well-type workpiece library matches the front and back length of the push block. The push block at the output end of the single-cylinder air cylinder can push the material in the well-type workpiece library from the bottom to the discharge chute.

[0011] As a further description of the above technical solution: The first linear conveyor belt and the second linear conveyor belt are driven by a three-phase asynchronous motor, and the right-angle bend conveyor belt is driven by a synchronous pulley. The three-phase asynchronous motor can be used as the drive for the synchronous pulleys of the first linear conveyor belt, the second linear conveyor belt, and the right-angle bend conveyor belt.

[0012] As a further description of the above technical solution: The number of the material sorting chutes is four, and the material sorting chutes are evenly distributed at the relative positions of the inductive sensor and the photoelectric sensor on the first linear conveyor belt and the second linear conveyor belt. The inductive sensor and the photoelectric sensor can cooperate with the pen-shaped cylinder to push the material into the material sorting chutes.

[0013] As a further description of the above technical solution: The electrical control mechanism includes an electrical control frame. Mounting contacts are respectively embedded and installed inside the electrical control frame, and an electrical controller is embedded and installed outside the mounting contacts at the rear end.

[0014] The utility model has the following beneficial effects:

[0015] The programmable controller technology application training and assessment device designed by the utility model, through design cooperation, makes the device have comprehensive functions compared with the training and assessment devices on the market and meet various training needs. The mechatronics teaching includes various mechanical components such as a well-type feeding mechanism, a handling mechanism, a conveying and sorting mechanism, etc. Combined with automation control electrics such as PLC, frequency converter, and touch screen, it can carry out the installation, debugging, and automatic control training of mechatronics equipment, covering multiple knowledge points. At the same time, it adopts a modular design and can flexibly combine different modules according to teaching needs to carry out the teaching of various training projects, and can meet various training needs.

[0016] The programmable logic controller technology application training and assessment device designed by the utility model completes the training and assessment of junior, intermediate, and senior electricians on the left side by designing the electrical control part; the right side is the object control part, and the action control of the right-side object is realized through the programmable control of the upper computer on the left side, completing the common actions such as conveying, sorting, handling, and palletizing in the optoelectromechanical integration technology. At the same time, related technologies such as photoelectric sensing, solenoid valves, and cylinders are completed. Through training and learning, electrician, mechatronics technology, photoelectric sensing technology, Internet of Things technology, industrial Internet technology, etc. are mastered. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the handling mechanism of the utility model;

[0019] Figure 3 It is a schematic diagram of the overall structure of the well-type feeding mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the overall structure of the material conveying and sorting mechanism of the utility model.

[0021] LEGEND DESCRIPTION:

[0022] 1. Handling mechanism; 101. Housing; 102. Rotary cylinder; 103. Telescopic cylinder; 104. Lifting cylinder; 105. Pneumatic gripper; 106. First single-control solenoid valve; 2. Well-type feeding mechanism; 201. Base plate; 202. Well-type workpiece library; 203. Single-cylinder cylinder; 204. Pusher block; 205. Second single-control solenoid valve; 206. Discharge chute; 3. Material conveying and sorting mechanism; 301. Three-phase asynchronous motor; 302. First linear conveyor belt; 303. Right-angle bend conveyor belt; 304. Second linear conveyor belt; 305. Material sorting chute; 306. Inductive sensor; 307. Photoelectric sensor; 308. Pen-shaped cylinder; 4. Machine body; 5. Electrical control mechanism; 501. Electrical control frame; 502. Installation contact; 503. Electrical controller. DETAILED IMPLEMENTATION MANNER

[0023] Refer to Figures 1-4, the programmable controller technology application training and assessment device provided by the utility model includes a machine body 4. An electrical control mechanism 5 is arranged on the left side of the top of the machine body 4. A handling mechanism 1 is arranged at the middle position of the top of the machine body 4. A well-type feeding mechanism 2 is arranged in the middle of the top of the machine body 4. A material conveying and sorting mechanism 3 is arranged on the right side of the top of the machine body 4. The handling mechanism 1 includes a housing 101, a rotary cylinder 102, a telescopic cylinder 103, a lifting cylinder 104, a pneumatic gripper 105 and a first single-control solenoid valve 106. The well-type feeding mechanism 2 includes a bottom plate 201, a well-type workpiece library 202, a single-cylinder cylinder 203, a push block 204, a second single-control solenoid valve 205 and a discharge chute 206. The material conveying and sorting mechanism 3 includes a three-phase asynchronous motor 301, a first linear conveyor belt 302, a right-angle bend conveyor belt 303, a second linear conveyor belt 304, a material sorting chute 305, an inductive sensor 306, a photoelectric sensor 307 and a pen-shaped cylinder 308. The rotary cylinder 102 is arranged on the top of the housing 101. The output end of the rotary cylinder 102 is fixedly connected with the telescopic cylinder 103. The output end of the telescopic cylinder 103 is fixedly connected with the lifting cylinder 104. The output end of the lifting cylinder 104 is fixedly connected with the pneumatic gripper 105. The first single-control solenoid valve 106 is fixedly connected to the middle of the lower part inside the housing 101. The well-type workpiece library 202 is fixedly connected to the middle of the left side of the top of the bottom plate 201. The single-cylinder cylinder 203 is fixedly connected to the middle of the right side of the top of the bottom plate 201. The output end of the single-cylinder cylinder 203 is fixedly connected with the push block 204. The second single-control solenoid valve 205 is fixedly connected to the front of the left side of the top of the bottom plate 201. The discharge chute 206 is fixedly connected to the top end of the left side of the bottom plate 201. The output end of the three-phase asynchronous motor 301 is fixedly connected with the first linear conveyor belt 302 and the second linear conveyor belt 304. The right-angle bend conveyor belt 303 is arranged at the top end inside the first linear conveyor belt 302 and the second linear conveyor belt 304. The material sorting chutes 305 are fixedly connected to the front top end of the first linear conveyor belt 302 and the right top end of the second linear conveyor belt 304 respectively. The pen-shaped cylinders 308 are connected to the rear top end of the first linear conveyor belt 302 and the left top end of the second linear conveyor belt 304 through fixing frames. The inductive sensor 306 and the photoelectric sensor 307 are fixedly connected to the top ends of the fixing frames respectively. Compared with the training and assessment devices on the market, it has comprehensive functions, meets various training needs, can conduct installation, debugging and automatic control training of mechatronic equipment, and covers multiple knowledge points.

[0024] As a further implementation of the above technical solution: The training device mainly consists of a training table, a well-type feeding mechanism 2, a handling mechanism 1, a material conveying and sorting mechanism 3, a PLC, a frequency converter, a touch screen module, an electrical control module, etc.

[0025] As a further implementation of the above technical solution: The training device mainly consists of a training table, a well-type feeding mechanism, a handling mechanism, a material conveying and sorting mechanism, a PLC, an inverter, a touch screen module, an electrical control module, etc.

[0026] As a further implementation of the above technical solution: The PLC module adopts a Siemens 1200 or 1500 programmable controller, and the power supply voltage of the PLC module is DC24V. It integrates 24 digital inputs (DC24V, 5 - 7mA, sink / source switchable) / 24 digital outputs (transistor output), with a built-in 64000-step RAM memory, 7680 auxiliary relays, 512 timers, 2 analog potentiometers, and high-speed counters. It integrates an RS422 interface and supports RS232, RS422, RS485, N:N network, MODBUS, and CC-LinK communications, and is equipped with a communication programming cable.

[0027] As a further implementation of the above technical solution: The inverter module adopts a Mitsubishi D700 series inverter D720S with a power of 0.4kW, a power supply voltage of 1AC - 220V, an output frequency of 0.2 - 400Hz, an accuracy of 0.01%, integrating 5 digital inputs, 1 relay output, 1 open collector output, 2 analog inputs (0 - 5V, 0 - 10V, 4 - 20mA), and 1 analog output (0 - 10V); it supports Modbus RTU communication, with general flux vector control, V / F control, and optimal excitation control; it has protection functions such as under-voltage, over-voltage, overload, ground fault, short circuit, locked rotor, phase loss, motor over-temperature, inverter over-temperature, and parameter error.

[0028] As a further implementation of the above technical solution: The touch screen is required to be a Kunlun Tongtai MCGSTPC7032KT with a power supply voltage of 24 ± 20%VDC, a Cortex-A7 CPU with a main frequency ≥ 800MHz and a memory of not less than 256M; at least a 7-inch high-brightness TFT liquid crystal display with a resolution ≥ 800×480; integrating an Ethernet interface, RS232, RS485, and USB interfaces, enabling trainees to understand the functions and usage methods of industrial touch screens, master the communication knowledge with the PLC, and master the implementation methods of function keys such as reset, set, and alternate, graphic (curve) display, and dynamic picture tracking in the touch screen. It is required to be able to form a PROFINET network with the PLC.

[0029] As a further implementation of the above technical solution: The electrical control module consists of devices such as a circuit breaker, a fuse, a button, an indicator light, a knob switch, a travel switch, an AC contactor, a thermal relay, low-voltage electrical appliances, a switching power supply, a photoelectric sensor, a photoelectric switch, a magnetic switch, and a control switch.

[0030] As a further implementation of the above technical solution: The well-type loading mechanism 2 mainly includes at least one well-type workpiece library 202, one material pushing mechanism, one photoelectric sensor 307, two magnetic switches, one single-cylinder air cylinder 203, one second single-control solenoid valve 205, and at least one warning light, and is mainly used to sequentially push out the workpieces in the workpiece library.

[0031] As a further implementation of the above technical solution: The handling structure mainly completes the handling of the workpiece from the loading unit to the first linear conveyor belt 302 through the cooperation of the rotary air cylinder 102, the lifting air cylinder 104, the telescopic air cylinder 103, the pneumatic gripper 105, the magnetic switch, and the first single-control solenoid valve 106 components and PLC programming.

[0032] As a further implementation of the above technical solution: The conveyor belt in the material conveying and sorting mechanism 3 includes a first linear conveyor belt 302 and a second linear conveyor belt 304, and a right-angle bend conveyor belt 303. The materials are detected by the photoelectric sensor 307 and the inductive sensor 306 at the end of the conveyor belt; at least two discharge slots 206, pen-shaped air cylinders 308, rotary air cylinders 102, several inductive sensors 306, several fiber optic sensors, several diffuse reflection photoelectric sensors 307, several magnetic switches and other detection devices and corresponding supporting brackets are installed on the conveyor belt; there are four material sorting slots 305 to complete the sorting work of the materials.

[0033] As a further implementation of the above technical solution: The electrical control mechanism 5 includes an electrical control frame 501. Installation contacts 502 are respectively embedded and installed on the inner side of the electrical control frame 501. An electrical controller 503 is embedded and installed on the outside of the installation contacts 502 at the rear end. The training and assessment of electricians at the primary, intermediate, and advanced levels are completed on the left side; the right side is the object control part, and the action control of the right-side object is realized through the programmable control of the upper computer on the left side, completing the common actions such as conveying, sorting, handling, and palletizing in the optoelectromechanical integration technology. At the same time, related technologies such as photoelectric sensing, solenoid valves, and air cylinders are completed. Through training and learning, technologies such as electricians, mechatronics technology, photoelectric sensing technology, Internet of Things technology, and industrial Internet technology are mastered.

[0034] Working principle:

[0035] The device is controlled by a PLC to achieve the automated operation of the well-type loading mechanism 2, the handling mechanism 1, the material conveying and sorting mechanism 3, and finally complete the tasks of loading, handling, conveying, and sorting of materials. The well-type loading mechanism 2 controls the second single-control solenoid valve 205 above the bottom plate 201 through the PLC to make the single-rod cylinder act. The push block 204 at the output end of the single-rod cylinder pushes the material out of the well-type workpiece library 202 and stops after pushing it to the discharge chute 206. Subsequently, the handling mechanism 1 controls the first single-control solenoid valve 106 through the PLC to start the rotation cylinder 102, the lifting cylinder 104, the telescopic cylinder 103, and the pneumatic gripper 105 to cooperate and move, and transports the workpiece from the loading mechanism to the first linear conveyor belt 302. Finally, the PLC controls the three-phase asynchronous motor 301 to start. The three-phase asynchronous motor 301 drives the first linear conveyor belt 302, the second linear conveyor belt 304, and the right-angle bend conveyor belt 303 at the same time, and conveys the workpiece along the conveyor belt. The PLC controls the photoelectric sensor 307 to detect the arrival position of the workpiece, and controls the corresponding pen-shaped cylinder 308 to act according to information such as the type or color of the workpiece, and sorts the workpiece into the designated material sorting chute 305. The PLC controls the three-phase asynchronous motor 301 to stop, completing the entire work process.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A programmable controller technology application training and assessment device, comprising a body (4), characterized in that: An electrical control mechanism (5) is arranged on the left side of the top of the machine body (4); a transport mechanism (1) is arranged in the middle of the top of the machine body (4); a well-type feeding mechanism (2) is arranged in the middle of the top of the machine body (4); a material conveying and sorting mechanism (3) is arranged on the right side of the top of the machine body (4); the transport mechanism (1) comprises a shell (101), a rotating cylinder (102), a telescopic cylinder (103), a lifting cylinder (104), a pneumatic gripper (105) and a first single-control solenoid valve (106); the well-type feeding mechanism (2) comprises a bottom plate (201), a well-type workpiece storage (202), a single-cylinder cylinder (203), a push block (204), a second single-control solenoid valve (205) and a discharge trough (206); the material conveying and sorting mechanism (3) comprises a three-phase asynchronous motor (301), a first straight A linear conveyor belt (302), a right-angle bend conveyor belt (303), a second linear conveyor belt (304), a material sorting slot (305), an inductive sensor (306), a photoelectric sensor (307) and a pen-shaped cylinder (308), wherein the transport mechanism (1), the well-type feeding mechanism (2) and the material conveying and sorting mechanism (3) are all controlled by a PLC module, the PLC module adopts a Siemens 1200 or 1500 programmable controller, and the power supply voltage of the PLC module is DC24V; the coordination of the rotating cylinder (102), the lifting cylinder (104), the telescopic cylinder (103), the pneumatic gripper (105), and the first single-control solenoid valve (106) components are all completed by PLC programming, and the pneumatic gripper (105) transports the workpiece from the feeding unit to the first linear conveyor belt (302).

2. The programmable controller technology application training and assessment device according to claim 1 is characterized in that: The top of the shell (101) is provided with the rotating cylinder (102), the output end of the rotating cylinder (102) is fixedly connected to the telescopic cylinder (103), the output end of the telescopic cylinder (103) is fixedly connected to the lifting cylinder (104), the output end of the lifting cylinder (104) is fixedly connected to the pneumatic gripper (105), a first single-control solenoid valve (106) is fixedly connected to the middle of the lower part of the shell (101), a well-type workpiece library (202) is fixedly connected to the middle of the left top of the bottom plate (201), a single-cylinder cylinder (203) is fixedly connected to the middle of the right top of the bottom plate (201), the output end of the single-cylinder cylinder (203) is fixedly connected to a push block (204), and a second single-control solenoid valve (206) is fixedly connected to the front of the left top of the bottom plate (201). 5), a discharge trough (206) is fixedly connected to the top left side of the bottom plate (201), a first straight conveyor belt (302) and a second straight conveyor belt (304) are fixedly connected to the output end of the three-phase asynchronous motor (301), a right-angle bend conveyor belt (303) is arranged at the top inner side of the first straight conveyor belt (302) and the second straight conveyor belt (304), a material sorting trough (305) is fixedly connected to the top front side of the first straight conveyor belt (302) and the top right side of the second straight conveyor belt (304), a pen-shaped cylinder (308) is connected to the top rear side of the first straight conveyor belt (302) and the top left side of the second straight conveyor belt (304) via a fixing frame, and an inductive sensor (306) and a photoelectric sensor (307) are fixedly connected to the top of the fixing frame respectively.

3. The programmable controller technology application training and assessment device according to claim 1 is characterized in that: The longitudinal section of the push block (204) is in the shape of a right-angled trapezoid. A through slot is provided at the bottom of the well-type workpiece storage (202) from left to right. The width of the through slot on the left side of the bottom of the well-type workpiece storage (202) matches the width of the material put into the well-type workpiece storage (202), and the width of the through slot on the right side of the bottom of the well-type workpiece storage (202) matches the front-to-rear length of the push block (204).

4. The programmable controller technology application training and assessment device according to claim 1 is characterized in that: The first straight conveyor belt (302) and the second straight conveyor belt (304) are driven by a three-phase asynchronous motor (301), and the right-angle bend conveyor belt (303) is driven by a synchronous wheel.

5. The programmable controller technology application training and assessment device according to claim 1 is characterized in that: The number of the material sorting slots (305) is four, and the material sorting slots (305) are distributed at the relative positions of the inductive sensor (306) and the photoelectric sensor (307) on the first linear conveyor belt (302) and the second linear conveyor belt (304).

6. The programmable controller technology application training and assessment device according to claim 1 is characterized in that: The electrical control mechanism (5) comprises an electrical control frame (501), the inner side of the electrical control frame (501) is respectively embedded with mounting contacts (502), and the outer side of the mounting contacts (502) at the rear end is embedded with an electrical controller (503).

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