Cloud numerical control system

A cloud numerical control system for cooperatively controlling multiple numerical control machining devices, comprising:

• a first cooperative machining control subsystem (FCMCS), a first cloud control core node (FCCCN), first cloud measurement and control subnodes (FCMCSNs), first fine-tuning driving units (FFTDUs), a first real-time communication network (FRTCN) and a first online internet (FOLI), wherein:
• the FCMCS accomplishes functions of interactively cooperative machining between different devices, functions of the FCMCS include acquiring data of a final machining error of a workpiece in a previous machining step and providing the acquired data to the FCCCN, FCMCSNs and FFTDUs to make modification according to an actual machining accuracy, online acquiring various operational status parameters from the FCCCN, FCMCSNs, FFTDUs, FRTCN and FOLI, integrating and analyzing the acquired data to obtain a real-time machining error of the workpiece which is being machined, predicting a sequent machining error, sending the real-time machining error and the predicted sequent machining error to the multiple numerical control machining devices, receiving and analyzing corresponding data from the multiple numerical control machining devices to provide to a cloud numerical control subsystem to make modification, and sending a final error of the workpiece to a cloud numerical control device of a numerical control machining device in a next machining step to optimize the next machining step after the workpiece has been machined, the cloud numerical control subsystem is installed in a single device and includes a second cloud control core node (SCCCN), second cloud measurement and control subnodes (SCMCSNs), second fine-tuning driving units (SFTDUs), a second real-time communication network (SRTCN) and a second online internet (SOLI);
• the FCCCN performs a human-machine operation and host function, performs signal processing, combination control and operation of complex control algorithm and control command outputs, remote communication and cooperative management operation functions, the FCCCN includes a first PC (personal computer) subsystem, a second PC (personal computer) subsystem, a third PC (personal computer) subsystem and a fourth PC (personal computer) subsystem, the first, second, third and fourth PC subsystems perform a host function, a real-time control function, a remote communication management function and a redundancy control function, respectively;
• the FCMCSNs perform detection of operation status signals of components and generation of fine-tuning control signals, accept adjustment, management and control commands from the FCCCN, a part of the FCMCSNs associate with the FCCCN to perform a real-time control function according to actual requirements, transferring of an operation status data is provided between the FCMCSNs to implement a connection and an interactively cooperative measurement and control function;
• the FFTDUs accept commands of the FCMCSNs to separately perform fine-tuning control operation to inside components of numerical control machining devices;
• the FRTCN performs online data transfer in the FCCCN, between the FCCCN and the FCMCSNs and between the FCMCSNs;
• and
• the FOLI performs communication between the FCCCN and an external device.