Introduction to Robotic Technology

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Learning Objectives
    Explain about safety in robotics Describe types of robots Explain about robot history Explain about robot configuration

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Introduction
• What is robot ?
– A mechanical unit consisting of axes and arms driven by servo motors or other motion driver.

• Robotics – technology dealing with the design, construction and operation of robots. • In Europe, Robotics defined as “the science of robotology” (‘the means by which robot machines are put together and made to work’
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Laws of robots (by Asimov)
• A robot must not harm a human being, nor through in inaction allow one to come to harm • A robot must always obey human beings, unless that is in conflict with the first ‘law’ • A robot must protect itself from harm, unless that is in conflict with the first two ‘laws’ • A robot may take a human being’s job. But it may not leave that person jobless (Norman).
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Introduction
 The place where arms are connected called JOINT or AXIS
 Main axes : J1, J2 and J3  Wrist axes : used to move and end effector (tool/hand) mounted on the wrist flange (J4 and J5)

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Robot Safety Introduction
• 1) 2) 3) 4) Perform intricate functions that are Hazardous Repetitive Unsafe Unpleasant

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Safety in Robotics
• It has gained critical importance due to

1) Increased use of robots for industrial use 2) Sophisticated programmed control 3) Increased usage in hazardous operations

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Types of accident
• • • • Impact or Collision Accidents Crushing and Trapping accidents Mechanical parts accidents Others

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Sources of hazards
• • • • • • • Human errors Control errors Unauthorized access Mechanical failures Environmental sources Power systems Improper installation
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Control Measures
• Pre-installation control measures • Installation control measures • Post installation control measures

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Pre installation control measures
• Shall meet minimum design