Robots are generally used to perform unsafe, hazardous, highly 1 or unpleasant tasks. Studies indicate that many robot accidents occur during 2 operations, such as programming, maintenance, testing, setup, or 3 . If the human worker is introduced into the robot’s working area, unintended operations could result 4 an injury. The use of robotics can also have potential 5 hazards. These dangers could include workers 6 colliding with equipment, being crushed or trapped by equipment, or being injured by falling equipment 7 uncertain movement or program changes, or component failures. If the components related with the robot or their power sources experience a mechanical failure, injury could result in. Of course, human all make mistakes 8 . If a human makes an error in programming, interfacing peripheral equipment , or connecting sensors, the robot could engage in 9 movement resulting in injury. Humans can also make an error in judgment when activating the teach pendant or control panel. To safeguard 10 , the most common technique is to install barrier guarding with interlocked gates.