Understand the operating, design and control principles of different types of robots.
Uses: in the home, in manufacturing industry, in medical applications, agricultural environments.
Principles of operation: operational characteristics and specifications; types of controller, manipulator, end effector/tooling e.g. pneumatic suction cup, hydraulic, electrical and mechanical grippers; work space organisation e.g. feed of work, robot-to-robot work, material flow and logistics.
Design principles: manipulator coordinate systems e.g. cylindrical spherical, jointed, spherical, Cartesian and Selective Compliant Assembly Robot Arm (SCARA) with associated working envelope; wrist articulations e.g. yaw, pitch and roll, degrees of freedom in terms of translations and rotations; drive mechanisms e.g. mechanical (ball screws, chain/belt, gears), pneumatic, hydraulic, electrical; speed reducers/gearheads e.g. harmonic, cycloidal, parallel shaft spur gear, planetary.
Control systems: on/off and programmable-integral-derivative (PID) control; closed-loop servo controlled systems e.g. for driving one axis of a robot; input, output and feedback signals e.g. the sequence which takes place in order to perform a task; control of three axes of a robot
Sensors: sensor types e.g. tactile (microswitches/piezoelectric/strain gauge/pressure), nontactile (capacitive/inductive/light/laser), vision (inspection, identification and navigation), sensor applications e.g. safety, work-cell control, component/part inspection.
End effectors: grippers and tools e.g. parts handling/transfer, assembly, welding, paint spraying, testing.
Assessment Criteria
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1.1
Explain the operating, design and control principles of different types of robots.
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1.2
Explain how different sensors and end effectors are used in robots.
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1.3
Analyse the benefits and limitations of using robots for routine tasks.