Since the advent of robotics , more than 115,000 robots have been installed in manufacturing facilities in North America alone. Most of the robots originally installed are still working. Similar to the machine tool (the machine life can last for decades), on the basis of long life, robots are increasingly proven to be mechanically reliable, usable and reasonable. Some reports say that the robot has been used for 50,000 hours before the overhaul, but on average, every seven years, the robot controller is obsolete, and original equipment manufacturers are launching a new type of controller for this purpose.
When a robot manufacturer introduces a "new generation" robot, it is not uncommon for the new controller to adopt a new programming language. This new controller is not backward compatible with previous control systems. This means that existing robot programs cannot be used in new systems and must be reprogrammed to face the task so that they can run on the new system. End users can only avoid reprogramming overhead by applying new systems to new workstations and new production lines.
This strategy works well with device extensions and new installations. However, until now there is no good strategy to upgrade existing robots with new controllers. With the obsolescence of the robot/controller community, this factor is creating considerable financial and productivity barriers for manufacturers trying to continually improve their competitiveness, but can only be limited to computing and control technologies in the 1970s and 1980s. .
The ultimate choice for robotic OEMs is that once the next generation of controllers is introduced, the previous controller versions are no longer supported. As a result, users of earlier robots are now having difficulty finding the robot controller spares they use. Some older robot controllers use up to 50 dedicated printed circuit boards. Since the controller is no longer supported, it is no longer possible to obtain replacement printed circuit boards from original equipment manufacturers. Spare parts must be obtained from the reseller's inventory. Some models of replacement parts (such as parts used in the robotic series of Cincinnati Milacron) are already scarce. In fact, this is because original equipment manufacturers are no longer involved in the robotics business. If a replacement part is available, the price is also very high.
The problem with obtaining spare parts is so common in the robotics industry that the price of an old "orphan" controller based on the possibility of using discarded parts is now close to $20,000.
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