Pick and Place Robots

8/4/2019 Pick and Place Robots

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Fabrication AndAnalysis Of Pick

And Place Robot.Where AI meets the real world.

Vishal Nayak SM-Tech- INDUSTRIAL AUTOMATION AND

ROBOTICS

S.I.T-Mangalore


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What is a Robot ?

A re-programmable, multifunctional

manipulator designed to move

material, parts, tools, or specializeddevices through various programmed

motions for the performance of a

variety of tasks.


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A robot must have the followingessential characteristics:

Mobility: It possesses some form of mobility. Programmability: implying computational or

symbol- manipulative capabilities that a designercan combine as desired (a robot is a computer).It can be programmed to accomplish a largevariety of tasks. After being programmed, it

operates automatically. Sensors: on or around the device that are able

to sense the environment and give usefulfeedback to the device

Mechanical capability: enabling it to act on itsenvironment rather than merely function as a

data processing or computational device (a robotis a machine); and Flexibility:it can operate using a range of

programs and manipulates and transportmaterials in a variety of ways.


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Isaac Asimov's Three Laws ofRobotics

Law ZeroA robot may not injure humanity, or,

through inaction, allow humanity to come to

harm.

First LawA robot may not injure a human being,

or, through inaction, allow a human being to

come to harm.

Second LawA robot must obey orders given it

by human beings, except where such orders

would conflict with the First Law.

Third LawA robot must protect its own existence

as long as such protection does not conflict with

the First or Second Law.


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the Robot

Mechanical platforms- the hardware base

SensorsMotorsDriving mechanismsPower supplies

Electronic ControlsMicrocontroller systemsLanguagesR/C Servos

PneumaticsDriving High-Current Loads from LogicControllers


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PICK AND PLACEROBOT

The time and man power are criticalconstrains for completion of task in largescales. the automation is playing importantrole to save human efforts in most of theregular and frequently carried works e.g.most of the industrial jobs like welding,

painting, assembly, container filling etc.one of the major and most commonly

performed work is picking and placing ofjobs from source to destination. For thispurpose, pick and place robot maybe used.


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The pick and place robot is a microcontroller based mechatronic system

that detects the object, picks that object from source location and places

at desired location.

For detection of object, infrared sensors are used which detect presence

of object as the transmitter to receiver path for infrared sensor is

interrupted by placed object. As soon as robot senses presence of object, it moves towards object,

picks it with end effectors, and moves along way gantry and finally

place it on destination.

If another object causes interrupt, it again does the same job. Wholeprocess is controlled by micro controller.

Pick and Place Robot.


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Microcontrollersystems

Speed

Size

Memory

Languages

RoboML

(Robotic Markup Language)

ROSSUM

XRCL

(Extensible Robot Control Language)


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MechanicalDesign

MECHANICAL COMPONENTS:

This pick and place robot has twomain mechanical components:

A] Robotic arm and end-effectors.

B] Gantry for moving the arm.


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OPERATION OF PICK ANDPLACE ROBOT

1. Initially we will assume the rest position of entire system,

i.e. state when no object is placed.

2. At this stage, photo detector is having its output high, since

receiver of sensor can receive photons from transmitter as noobject I in its path to interrupt.

3. As soon as object is placed at the picking platform, the

sensor gets interrupted and outputs low. This signal is sent to

the microcontroller which is burnt with program which tells

what operation is to be performed at this stage.

4. For understanding operation, let us rename the two motors

used here. Let the name of gantry motor be M1 and that forend effecter motor is M2.


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Pick and Place Robot.


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5. Now as microcontroller detects that object is placed, it moves

motor M1 in say clockwise direction for a fixed time due to

which whole arm moves towards picking platform.

6. As it reaches there, M1 stops and now motor M2 is started insay clockwise direction to hold the object by closing jaw. This

motor also, is on for particular fixed time instant.

7. As M2 gets off, motor M1 is moved again in opposite (here

anticlockwise) direction till the time it reaches the placingplatform.

8. As it reaches placing platform, the motor M1 stops and M2 is

switched ON in opposite (here anticlockwise) direction till it

releases object properly on desired place.

9. If after this no object is detected, the robot is in rest position.

Otherwise if another object is detected, steps from 3 are

repeated till step 8.

A


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App ngRobots

Safety

Animatronics systems

Industrial robots

Space

A


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App ngRobots

Safety

Animatronics systems

Industrial robots

Space

Examples

1. It can be used in

Production industry.2. In mass production.

3. In Automobile Industry.

Etc..


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Nothing is totally impossible. Perhaps one day

we will be able to produce robots that arepractically indistinguishable

from ourselves.


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Acknowledgement

Thanks to all of my

respected teachers for

allowing me to represent an

article on Pick and Place

Robot. I thank to the

Internet Faculty of our

college for providing access

to Internet for searching

data. Thanks to my parents

for providing me a

Personal Computer.

THANK YOU

Pick and Place Robots

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