Denso Robot |
An evaluation must be done of the application. The main things to
consider are load, orientation, speed, travel, precision, environment, duty
cycle and programming.
1. Load. This can limit which robotic solutions are available
right away. Consult the manufacturer’s specs to each robot to see if it
something the robot can handle. Heavy payloads can deflect a robotic arm making
it harder to consistently position the load with accuracy.
2. Orientation. This depends on how the robot
is mounted and how it situates parts or products that are being moved. Space
within the work envelope must also be considered. The main goal of this is to
match the robot’s footprint to the work area.
Codian Delta Robot |
4. Precision. Delta, SCARA and six axis
robots have a predefined accuracy rating making it easy to determine their repeatability
of movement. Although this is ideal for some applications it can lock the user
into one level of accuracy. A Cartesian robot once again can be customized if
necessary for better precision. Also consider deflection. Heavy payloads = tougher
success with precision.
5. Environment. Three main things need to be
considered: space available in work envelope, hazards and environmental
situations. Overhead mounting is a good option in limited space or pick and
place applications. For environmental issues many robots are available in an
IP65 model.
ONEreach Cartesian Robot |
7. Programming. The most suitable robot for
an application also depends on the requirements for controls and
programmability. Typically the most basic controls are available with a
Cartesian robot because of the simplicity of the design. Articulated, Delta and
SCARA robots require more advanced functions which results in more time
implementing them into action. Another thing to consider is communication with
external additions such as an end effector, tool or vision system.
Robots are becoming a necessity in any automation application and
can show an impressive ROI within weeks of implementation. For more information
visit onexia.com/robotics or contact one of our engineers to discuss your
potential application.
Tim Pelesky
Marketing ONExia Inc
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