Robot capabilities range from very simple repetitive point-to-point motions to extremely versatile movements that can be controlled and sequenced by a computer as apart of a complete, integrated manufacturing system. It would be convenient if all robots could be placed into neat categories, each category being labelled with all the job capabilities belonging to its robot members. Although this can, and will, be attempted here, there are dangers and pitfalls in trying to establish a rigid robot classification. The real problems result from the fact that, while a simple robot might be perfectly capable of doing a good job in a plant, a more sophisticated (and therefore more expensive) robot could possibly do the job even better, and even more profitably. Classification itself is not too easy, since robot design development progress has caused a good deal of overlap between what were once clearly distinguishable robot types. Rather than be defeated by these arguments, we can first consider three simple robot categories, and then go on to look at the complications introduced by variations in anatomical conformation and different designers’ preferences in matters of drive mechanisms and control techniques.
KeywordsSpot Welding Servo System Slew Rate Ball Screw Memory Unit
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