Safety avoidance system for multiple numerical control operation units

Abstract

The invention provides a safety avoidance system for multiple numerical control operation units, which comprises multiple numerical control operation units, a common operation area and a common area arbitrator. The running programs of the numerical control operation units can still be written and generated in an independent way, so that the numerical control operation units can work together in amode of independent motion planning and parallel program running, and the operation complexity of the numerical control operation units is reduced. The common area arbitrator capable of monitoring andrecording the occupancy status of the common operation area is set for the common operation area where collision conflicts might occur, and thus, the execution process of the programs is changed to the minimum. Based on the information interaction between the common area arbitrator and the numerical control operation units, the situation in which the multiple numerical control operation units enter the common operation area at the same time and the deadlock state in which the multiple numerical control operation units wait for one another are avoided. Therefore, coordinated running of the multiple numerical control operation units is ensured, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of numerical control machine tools and robot control, in particular to a safety avoidance system for multiple numerical control operation units. Background technique [0002] At present, industrial robots, CNC machine tools, machining centers and other dedicated CNC servo systems are widely used in the manufacturing industry, greatly improving production efficiency and quality. Because these devices generally use servo motors, numerical control systems, and have programmable features, they are called numerical control operating units. Among them, a single NC operation unit usually runs the NC program in a serial manner, while multiple NC operation units can execute the NC program in parallel. [0003] As the application of CNC work units becomes more and more complex, it often happens that multiple CNC work units cooperate to complete industrial automation tasks (for example, the same workpiece is processed...

AI Technical Summary

Problems solved by technology

Although this method has lower requirements for task planning and higher execution efficiency, when the communication logic between several NC operation units is not rigorous enough, or there is a communication delay problem, two NC operation units may enter the common operation at the same time. Area situation, or a deadlock state where two NC work units wait for each other

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