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CALICUT UNIVERSITY
INSTITUTE OF ENGINEERING AND TECHNOLOGY
Guided by
Presented by
MECHANICAL DEPARTMENT
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INTRODUCTION TO FLUID POWER
Fluid power is a term which was created to
include the generation, control, and application
of smooth, effective power of pumped or
compressed fluids (either liquids or gases) when
this power is used to provide force and motion to
mechanisms. This force and motion maybe in
the form of pushing, pulling, rotating, regulating,
or driving. Fluid power includes hydraulics,
which involves liquids, and pneumatics, which
involves gases.
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INTRODUCTION
An industrial robot is officially defined by ISO as
an automatically controlled, reprogrammable,
multipurpose manipulator programmable in three
or more axes.
The Robotic Manipulator Arm extends the
flexibility of workstations by transporting materialmore efficiently and quickly between worktable,
peripheral devices and assembly lines etc.
Despite its numerous possible usages, it finds
most widespread usage in manufacturing
industry. Typical applications of robots include welding,
painting, assembly, pick and place, packaging and
palletizing, product inspection, and testing, all
accomplished with high endurance, speed, and
precision.
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ADVANTAGES OF FLUID POWER
They eliminate the need for complicated systemsof gears, cams, and levers.
The fluids used are not subject to breakage or
wear as are mechanical parts.
The forces can be conveyed up and down or
around corners with small loss in efficiency and
without complicated mechanisms. Very large forces can be controlled by much
smaller ones and can be transmitted through
comparatively small lines and orifices
It can provide smooth, flexible, uniform action
without vibration, and is unaffected by variation
of load. In case of an overload, an automaticrelease of pressure can be guaranteed
Fluid power systems can provide widely variable
motions in both rotary and straight-line trans-
mission of power.
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CONCEPT
The basic concept used behind the operation isPASCALs LAW. This law states that when a pressure is
applied at one point of a fluid contained in a constrained
volume, then the pressure due to that force is equally
transmitted to all the points of the fluid, which are acted
upon by the same pressure.
Using the same principle, we applied pressure to fluid insyringe which is transmitted to other end of tube which
is connected to a syringe. This motion of the syringe is
used to move the links or parts of the mechanism which
are attached to respective syringes.
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PASCALS LAW
The foundation of modern hydraulics
was established when Pascal
discovered that pressure in a fluid acts
equally in all directions. This pressure
acts at right angles to the containing
surfaces. If some type of pressure
gauge, with an exposed face, is placed
beneath the surface of a liquid at a
specific depth and pointed in different
directions, the pressure will read the
same. Thus, we can say that pressure
in a liquid is independent of direction.
Pressure due to the weight of a liquid,
at any level, depends on the depth of
the fluid from the surface.
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WORKING
A robotic arm which is hydraulically
operated and controlled by syringes filled
with some fluid. It consists of various parts
connected to each other in a pre-designed
manner which are guided in a constrained
way to obtain required output.
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PROGRESS
Considered the material type and
dimensions
Collected sample design on the project
Enquired about the project applications
Estimated the approx. project
expenditure
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PARTS
6 5 ml syringes
93 cm of tubing to fit the syringes, - 6 mm
outside diameter
166 cm of 1 x 1 cm sticks
base this can be any size 8.8 cm wide x26cm long ( an 11 piece of 1 x 4 wood)
a small disk about 7.5 cm diameter
30 cm of 2 cm x 2 cm wood for the
standany size close to this is OK though
50 cm of dowel
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DESIGN 10
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APPLICATION
The Hydraulic Arm will
Deliver the most objects in a given amount
of time.
Function in an assembly line. Have a system to weigh the object it picks
up.
Rotate as well as reach and grab.
Dig and recover objects
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conclusion
Our design uses extremely simple ideas andmechanisms to achieve a complex set of
actions and is intended to imitate the
actions of the operators. However, these
hydraulic arms are expensive for small
scale industries. If the major problem of
high initial cost is addressed, a robotichydraulic arm can be introduced in any
industry to bring in automation. The
mechanical links and parts that have been
fabricated are extremely simple.
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