A CLIL lesson for a technical school

1. 31/08/15 1
Robotics
Lesson prepared by Alessandro Gallas

2. 31/08/15 2
Abstract
 If we think about robots, we have not
to think about an artificial man.
 The aim of the robot is to substitute
the man at the work.
 Consequently the similitude
concerned overall the arm.

3. 31/08/15 3
Parts of robot
 Despite the similitude with human arm or
mechanical equipment, the strictly definition of
the parts of robots refers to the followings
criteria:
 The parts of the robots are named links and the
connections between two links are named
joints.


4. 31/08/15 4
Similitude between man and robot
 The parts of the robot are the
frame, the 1st
link (upper arm),
the 2nd
link (forearm). The last
link is named end effector
(hand, sometime with fingers).
 The 1st
joint is named shoulder,
the 2nd
joint is named elbow, the
join, which connects the last link
and the end effector (hand) is
usually named wrist.

5. 31/08/15 5
degree of freedom
 The degree of freedom
is the most interesting
characteristic of the
robot.
 More links (and more
joints) allow increase
the possibility of
movement and the
jobs, which the robot
can do.

6. 31/08/15 6
The movements of the links
 The type of joint define the
movement of the links,
which are connected. There
are two possibility of
movement: translation or
rotation.
 There is the arm sweep,
the shoulder swivel and the
wrist can have three
movements: pitch, yaw and

7. 31/08/15 7
the end effector
The end effector defines
the type of the work itself.
In fact, the robots can be
very similar, but the end
effector can be very
different, due to the use.
In fact the end effector
can be a gripper, a paint
sprayer, a spot welding
gun, a suction cup or other
tools.

8. 31/08/15 8
the change of the end effector
Usually the same robot
can change the end
effector, in order to the
work.

9. 31/08/15 9
Answer the following questions
 1) What are the differences between joints
and links?
 2) What are the parts of a robot that make
it similar to a human arm?
 3) What are the robots mainly used for?
 4) What is the part of the robot, which
defines the job of the robot itself?

10. 31/08/15 9
Answer the following questions
 1) What are the differences between joints
and links?
 2) What are the parts of a robot that make
it similar to a human arm?
 3) What are the robots mainly used for?
 4) What is the part of the robot, which
defines the job of the robot itself?