7.1 Understand the most common
robot applications used today in
Manufacturing
7.1.1 Describe
the principles of robot application process
a.
Welding process
•
Welding
applications are classified in three categories:
–
resistance,
arc, and gas.
•
In each
application area, only servo-type robots
are used because path control is critical.
 |
| FIGURE: PATH CONTROL SYSTEM |
•
Resistance
or spot welding was developed by the
automotive industry in the mid-1970s and continues to be a major
application in that industry.
•
The robot became a standard item on the assembly line due to its ability to move the 150-pound welding gun effortlessly into
position on a moving car body
and produce accurate resistance welds at a rate of one every 3 seconds.
•
Figure
shows a series of Fanuc robots performing spot welding on car bodies.
•
Robotic arc welding is frequently used in the
heavy-equipment manufacturing industries to produce off-road hauling and earth-moving equipment.
•
Lighter applications occur in the automotive, electronics, and aerospace industries.
•
Metal inert gas (MIG) and tungsten inert gas
(TIG) welding with real-time interactive control permit the robot to track the
seam between two metal plates.
•
The seam
to be welded is located and tracked by
a photo sensor, such as the vision camera , or by welding parameters.
The location of the seam or welding path is passed to the robot controller,
which moves the arm holding the welding tooling.
•
The
location and control are dynamic,
so that corrections in the direction of the welding gun are made as the weld is
in progress.
•
Robotic
arc welding is cost-effective when compared with manual and semiautomatic
systems.
VIDEO:VARIOUS ROBOTS WELDING PROCESS!!
Industrial robots: 5 most popular applications
ReplyDelete1 – Robotic handling operations (38%)
Material handling is the most popular application with 38% of operational stock of industrial robots worldwide. This includes machine tending, palatalizing and various operations for metal machining and plastic moulding.
2 – Robotic Welding (29%)
This segment mostly includes spot welding and arc welding which is mainly used by the automotive industry. Spot welding is still more popular than arc welding but not for long; as arc welding is becoming very popular in the metal industry.
3 – Robotic Assembly (10%)
Assembly operations include: fixing, press-fitting, inserting, disassembling, etc. This category of robotic applications seems to have decreased over the last few years, even while other robotic applications have increased.
4 – Robotic Dispensing (4%)
Here we are talking about painting, gluing, applying adhesive sealing, spraying, etc. Only 4% of the opreational robots are doing dispensing.
5 – Robotic Processing (2%)
Processing is not a big segment of industrial robots (only 2%) and this is probably because a lot of automated machines are available on the market to do specifically these applications. The main application areas are mechanical, laser and water jet cutting.
http://www.slideshare.net/SudhirReddy/application-of-robots
Deletethis link for slide show application of robotic
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ReplyDeletehttp://www.youtube.com/watch?v=HUU3HdxOqZs
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