Traditional industrial robots generally big, work within the security fence, widely used in automobile industry and other large assembly line.In contrast, collaborative robot light weight, highly flexible, convenient installation, can easily reprogrammed in order to solve the new task, and can directly and human staff to work side by side without the need for safety fence in isolation.This type of robot cooperation can be expected to fill the whole manual assembly line and automatic production line, the gap between help enterprises adjust to achieve more advanced small batch production, so as to meet the challenges of the short-term production.