Tabletop Pick and Place Robotics Have Variations

Published: 13th March 2012
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Pick and place robotics are widely spread in almost any type of business industry that involves mass production and automatic manufacturing. The functionality picking and placing products from point A to point B is quite a basic stuff, but for mass production or products and materials, this is the most crucial part of manufacturing. Each movement of these robotic machines is automated and computerized, significantly accelerates the operation and puts chances for costly errors to minimum. This entry will talk about the variations of capabilities of thee wonderful robotic machines and help your narrow your options to find the best suit for your business.

Air Cylinder powered Pick and Place Robot
Some modern pick and place systems utilize air cylinders to fuel the movements of the robotic arm from one place to another. The robot may use one or more air cylinders to sustain its movements, and these cylinders can be installed in such a way that they can move freely in either horizontal plane and vertical plane or even both. To turn the arm of the robot to a particular axis, rotate or flip over, another air cylinder is used.

Some common drawbacks of this type of pick and place device however herky-jerky operating movement are which kinds of lunging from one place to another, and itís not really known for a smooth operation. These erratic movements are the usual cause of inaccurate placement in picking objects and placing to a particular location on its automation cycle. This of course, causes big problem for the whole process in the assembly line and jeopardize the performance of other components in the system. If this issue is properly addressed, this type of pick and place robotic system can be very effective.

Cams powered pick and place robots
Cam-driven pick and place device include peaks and valleys that cut through its edges. As the machine turns on its shaft, these peaks and valleys guide its movement in its pick and place function. This type of robotic device gives a very accurate movement without any aberration. Placement accuracy is its biggest perk, and it is relatively easy to adjust and displace. This type robot performs tasks silently compared to the air cylinder types.

However, cam-driven device can only perform one set of motion. If new movements are needed for the area of assembly, then peaks and valleys should be changed. Or better yet, you need to add another cam pick and place unit to work along with the existing one.

Both air cylinders and cam-driven robots utilize electromechanical system, which is obviously powered by electric motors. Air cylinders are used for vertical and horizontal pick and place movements, while cam-driven bots are used for acceleration and deceleration of movement as well as allow change of directions. However, there are many hybrids of these two types nowadays, they can be more expensive but they surely can manage a lot more activities you want it to perform.

Electrical powered robots on the other hand, enable users to adjust the length of the strokes and stop the device at any point. The good thing about this is, itís not forced to stop in the end of its travel, and it can be stopped at any point in its route. This type of pick and place robotic may have an expensive initial cost, but it more cost-effective in the long run compared to other types.

Also, controls for the electric type are much more simplified with its advanced capabilities and control system build on its controller. Thus, this type is by far, the most efficient pick and place device available in the market today.

For more information on Pick and Place systems or Packing Machines, please visit Gough & Co (Engineering) Ltd.

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