Robotics are used in a wide range of applications. The majority of these right now are manufacturing robots, although research into medical and military uses has been ongoing. Industrial robots are used for assembly, cutting for precision parts, polishing and finishing surfaces, handling, sealing and gluing, painting, welding, and many other things. Because these are the main applications that robotics are used for this is the type of robot detailed here.
Industrial robots used for assembly range from micro fine parts to huge things like automobiles. In all cases assembly robots must be very precise. A robot can be as accurate as a human and do so more consistently then most human workers which is why they are used for this type of application. Most robots can also weld heavy, noisy, or dangerous tools with little fatigue or complaint, unlike a human worker. This also applies to cutting jobs that use lasers, plasma, and water jet cutters. Because there are options for how the part is presented to the robot, either with the robot holding it or holding the tool, cutting jobs that are very complex can be done quickly and easily.
In addition to cutting many types of finishing can be done with a robot. This includes de-burring, grinding, polishing, painting, sealing, or apply another type of finish coat. Having robots work in conjunction with one another, one holding the part and the other the proper tools, can give the ability to do even the most complex designs and parts. Because robots are consistent, the results are more uniform then otherwise possible. Plus using robots reduces human exposure to harmful chemicals.
Handling jobs can be part of testing, packing, packaging, and such. In all cases, handling by a robot reduces damage to the product while increasing speed and efficiency of the manufacturing process. Some robots can even have vision sensors to allow them to adjust to part differences. The array of things that handling includes ranges from precise pick and place applications to machine tending tasks like feeding injection or blow molders, mills and lathes, presses and the like.
While industrial use is the main application, robots are used for other things. From micro surgery to precision military hits and emergency services, robots have become a quiet part of our world. They perform many tasks that would be dangerous to humans and do so with speed, precision, and consistency.