The Systems Approach to Mechatronics Education

Transcription

1 The Systems Approach to Mechatronics Education Marilyn Barger, FLATE (Florida Advanced Technological Education Center of Excellence) Dan Horine, Virginia Western Community College Protection notice / Copyright notice

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3 MODULAR PRODUCTION SYSTEM - FESTO System Approach MAY Page

4 MALAY 1 - CHRISTIANI System Approach MAY Page

5 Total Integrated Processing Control System System Approach MAY Page

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7 Information The System Human Body Doctor s Problem Support Central Systems Energy Actuators and Transmissions Page 7

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10 Power Units Control Units Support Units Transmission Units Actuator Units Page 10

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12 Block Diagram of a Motor Vehicle System Boundary Control Units: e.g. Steering Wheel, Valve Control, Speed Sensor Information Information Information Energy Power Units: e.g. Diesel Engine, DC Wiper Motor Transmission Units: e.g. Clutch, Gearbox, Driveshaft Actuator Units: e.g. Wheels, Windscreen Wiper Energy Support Units: e.g. Chassis, Doors, Airbags, Headlights Page 12

13 Block Diagram of a Motor Vehicle Operator/Driver Lights & Signals Battery Alternator Steering Wheel Dashboard Cooler DC-Motor Starter Engine Tank Power Windows DC-Motor Brake Servo Unit Clutch Steering Gear Screen Wiper DC-Motor Brake ABS Gear ABS Brake Air Condition DC-Motor Wheel Drive Shaft Drive Shaft Wheel Page 13

14 TYPICAL APPLICATION System Approach Assembly Line: uses robots an other specialized automated devices to assemble parts. material is often transported between stations by a conveyor. various types of sensors are used to monitor machine operation. programmable controllers are used to control machine movements. controllers are commonly networked to provide communications between stations and to track the technical process. MAY Page

15 CONTROL SYSTEM CONCEPT System Approach Automation systems have a controller that is designed to make the machine components perform a series of actions or steps (machine sequence). Each step starts with an input signal, or signals, the logic decides what outputs to turn on or off. MAY Page

16 CONTROL SYSTEM CONCEPT System Approach Step1: Feed cylinder extend Step2: Pick-up cylinder extend Step3: Vacuum switched on. MAY Page

17 MECHATRONICS System Approach Mechatronics is not a subject, science, or technology. s It is a fundamental way of looking at and doing things. MAY Page

18 SYSTEM ANALIZING System Approach Mechatronic system can be analyzed by defining an energy flow, a mass or material flow, and a data or information flow. MAY Page

19 SYSTEM ANALIZING System Approach A mechatronic system fulfills its tasks like every other system, through the conversion of energy, material and information. MAY Page

20 SYSTEM ANALIZING System Approach A typical mechatronic system receives, processes and distributes signals, e.g. converts them into operations and motion. Energy Flow Forces Movements SYSTEM Energy ACTUATORS SENSORS Feedback Control Variables CONTROL Information Flow Measurands Reference Input MAY Page

21 System Approach 3D CNC Machining Center Main Drive Ball Screw Y Position Sensor Y Position Ball Sensor X Screw Z Task:Mass Flow Position Sensor Z Develop the block Information Flow of the pictured diagram machining Energy center with enery flows,information Flow flows and mass flows. Monitor Ball Screw X Feed Drive X Page 21 Feed Drive Y Feed Drive Z Input Keyboard

22 Main Drive Main Transmission Transmission Y Actuator Feed Drive Y Feed Drive Z Feed Drive X Transmission X Transmission Z Page 22

23 Block Diagram System Boundary Electrical Energy Encoder Encoder Encoder Main Drive Encoder Kinetic Energy Feed Drives X Feed Drives Y Feed Drives Z Main Transmission Kinetic Energy Feed Trans Y Feed Trans X Feed Trans Z Coolant Kinetic Energy Actuator Kinetic Energy Chips Encoder Machine Control Units Coolant Operator Half Finished Product Heat Energy Finished Product Page 23

24 Flexible Manufacturing System (simplified) Milling Machine Loading Robot Conveyor Page 24

25 Electrical / Control Units Mechanical Units Pneumatic Units Hydraulic Units Page 25

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27 Electrical Energy Main Drive DC-Motor Mechanical Energy Transmission V-Belt-Drives Gear Trains Couplings Mechanical Energy Actuator Work Spindle Forces and Torques Forces and Torques Forces and Torques Frame Bearings Bearings Support Frame Bearings Guidelines Forces and Torques Forces and Torques Forces and Torques Electrical Energy Feed Drive DC-Motor Mechanical Energy Transmission Timing Belts Ball Screws Couplings Mechanical Energy Actuator Table Machine Vice Page 27