A short PowerPoint presentation on robotic arm, its features and its development. Contains a video explanation, please download to watch it....Thanks for watching.
2. What is robotic arm???
The term robot comes from the Czech
word robota, generally translated as "forced
labor." This describes the majority of robots
fairly well. Most robots in the world are
designed for heavy, repetitive manufacturing
work. They handle tasks that are difficult,
dangerous or boring to human beings.
3. What is robotic arm???
The most common manufacturing robot is the robotic
arm. A typical robotic arm is made up of seven metal
segments, joined by six joints. The computer controls
the robot by rotating individual step motors connected
to each joint (some larger arms use hydraulics or
pneumatics). Unlike ordinary motors, step motors move
in exact increments (check out Anaheim Automation to
find out how). This allows the computer to move the
arm very precisely, repeating exactly the same
movement over and over again. The robot uses motion
sensors to make sure it moves just the right amount.
4. What is Trigonometry
Originally trigonometry was understood to define
relations between elements of a triangle. In a triangle,
there are six basic elements: 3 sides and 3 angles. Not
any three line segments may serve as the sides of a
triangle. They do iff they satisfy the triangle inequality,
or rather three triangle inequalities. Not any three angles
may be the angles of a triangle. In Euclidean geometry,
the three angles of a triangle add up to a straight
angle. These requirements impose limitations on the
manner in which the relations between the elements are
defined. In modern trigonometry these relations are
extended to arbitrary angles. This can be done, for
example, by observing the projections of a rotating
radius of a circle and a tangent at the end of the
radius.
5. Rules of Trigonometry used in
Robotics
Law of sines
In trigonometry, the law of sines, sine law, sine formula, or sine rule is an equation relating
the lengths of the sides of any shaped triangle to the sines of its angles. According to the law,
where a, b, and c are the lengths of the sides of a
triangle, and A, B, and C are the opposite angles (see
the figure to the right), while d is the diameter of the
triangle's circumcircle.
6. Law of cosine rule
In trigonometry, the law of cosines (also known as the cosine formula or cosine
rule) relates the lengths of the sides of a triangle to the cosine of one of its
angles. The law of cosines states
where γ denotes the angle contained between
sides of lengths a and b and opposite the side
of length c.
8. Uses of Robotic Arm
The Shuttle's robotic arm has performed many kinds of tasks
over the years. It has set satellites into orbit and retrieved
others for repair. The first time Canadarm (space shuttle
manipulator System) was used in one of many International
Space Station (ISS) assembly missions was for Mission STS-88,
December 1998.
9. Uses of Robotic Arm
The robotic technology used in Canadarm (space shuttle
manipulator System) provides humanlike dexterity here on
Earth in a variety of environments. These may include
servicing nuclear power stations, welding and repairing
pipelines on the ocean floor, remote servicing of utility
power lines, or cleaning up radioactive and other hazardous
wastes.
The Seaman Magnetic Resonance Centre in Calgary has
teamed up with MDA Space Missions to adapt space robotics
for use in surgery. The benefits are improved accuracy,
efficiency, and the quality of patient care.
10. Uses of Robotic Arm
A system developed originally to explore Mars has been
transformed into an agricultural monitoring device for
testing the quality of soil. It has the potential to reduce the
environmental impact of farming.
Dr Ebrahim Hoosen and Dr Lipalo Mokete used the
transformative technology and saw two hip replacements and
one partial knee replacement go off without a hitch.
11. FUTURE SCOPE
If more time and more efforts would have been put into
the model, more complexity could have been brought out.
Moreover instead of manual operation of switches and
controller could have been replaced by pre-defined
computer program or merely by pressing switch operated.
Further more varieties and more flexibility to add or
replace any part according to the requirements can be
done to improve its use and increase field of usage and to
make it more universal or flexible.
12. CONCLUSION
The prepared mechanism has been successfully
constrained and executed to carry out the required work
of picking up the weight of the object like table tennis
ball and to put them in to the placed at different
location.
This robot can be modified using some of the latest
techniques to make it more flexible and addition of
movable joints to increase its working capacity.
