This document provides an overview of robotics and motion control. It outlines different components of robots like manipulators, end effectors, actuators, and sensors. It describes various robot configurations including polar, cylindrical, and Cartesian. It also discusses robot kinematics, specifications, industrial applications, and the need for robots in tasks that are hazardous, repetitive, or require speed and accuracy.
2. OUTLINE
1. Introduction.
2. Robot’s Anatomy.
3. Robot’s Components.
4. Laws of Robots.
5. Robotics Motion and Movements
6. Robots Joints.
7. Robots Configuration.
8. Robots Kinematics.
9. Types of Robots.
10. Robots Specification
11. Need of Robots.
12. Industrial Use of Robots.
3. INTRODUCTION
The term ‘Robot’ was first used in a play called
“Rossum’s Universal Robots” by the writer Karel
Capek.
Robotics is the science that generally deals with
Robots.
Robotics is a form of Industrial Automation,
generally Programmable automation referred as
Robots.
A robot is a machine in the form of a human being
that performs all functions of human being but lacks
sensitivity.
5. ROBOTS COMPONENTS
Manipulator or Rover:- Main body of the robots (Links,
Joints, other structural elements of robot).
End Effector:- The part is connected to the last hand
of the manipulator.
Actuators:- Muscles of the manipulators (Servomotor,
Stepper motor, Pneumatic or Hydraulic Cylinders).
Sensors:- To collect information about the internal
state of the robot or to communicate with the outside
environments.
Controller:-Similar to Cerebellum. It controls all the
motion of the actuators.
Processor:- Brain of Robot.
6. LAWS OF ROBOTS
Zero Law:-A robot may not injure humanity or
though inaction , allow humanity to come to harm.
First Law:- A robot may not injure humanity or
though inaction , allow humanity to come to harm,
unless it would violates higher order laws.
Second Law:-A robot must obey orders given it by
human beings, except where it would conflict higher
order laws.
Third Law:-A robot must protect its own existence
as much as such protection does not conflict with
higher order laws.
7. ROBOTIC MOTION AND MOVEMENTS
Motion:-Motion of Robots can be defined by LERT.
1. Linear Motion.
2. Extension Motion.
3. Rotational Motion.
4. Twisting Motion.
Movements:- Robots generally have three movements.
1. Rotational Movements.
2. Radial Movements.
3. Vertical Movements.
10. ROBOTS CONFIGURATION
Polar Configuration:-
1. It has three axes with one
linear joint and two rotary
joints.
2. Its work envelope is
Spherical.
Cylindrical Configuration:-
1. One rotary and two linear
joints.
2. It has 3 DOF with
Cylindrical coordinates
system.
3. Generally used for Pick and
Place applications.
11. Cartesian Configuration:-
1. Consist of three slide joints,
two of which are
Orthogonal.
2. All arm joints are Linear.
3. Work envelope is
Rectangular.
Revolute Configuration:-
1. Three rotational axes.
2. Closely resembles as
Human Arm.
3. Identified by three axes,
Waist Rotation, Shoulder
Rotation, Elbow Rotation.
12. ROBOTS KINEMATICS
Forward Kinematics
If we given the joint angles, we have to determine the position and
orientation of the end effector.
Reverse Kinematics
If we given the position and orientation of the end effector, we
have to determine the numerical values of joint angles.
13. TYPES OF ROBOTS
1. Industrial Robots.
2. Laboratory Robots.
3. Explorer Robots.
4. Hobbyist Robots.
5. Class Room Robots.
6. Educational Robots.
7. Tele-Robots.
15. NEED OF ROBOTS
1. Speed.
2. Hazardous Environment
3. Repetitive Task.
4. Efficiency.
5. Accuracy.
6. Adaptability.
16. INDUSTRIAL USE OF ROBOTS
1. Loading and Unloading
2. Palletizing and Depalletizing.
3. Spot and Electric Arc Welding.
4. Pick and Place Option.
5. Assembly.
6. Spray Finishing Operation.
7. Spot Welding Robots.
8. Aerospace Industries.