PLC Programming and Research on Visual Control of Loading and Unloading of CNC Machine Tool Robot
Aiming at the problems of PLC programming and control of robots,vision systems,conveyor chains,and oth-er equipment for automatic loading and unloading of automotive engine cylinder blocks in numerical control machin-ing,the connection control and communication methods between Siemens PLC controllers,Cognex cameras,and FANUC robots were explored.The framework of the PROFINET bus network communication control system,as well as the method and parameter settings for visual image transmission through PROFINET were planned and designed.The method of how the robot can accurately grasp the parts by detecting the displacement data of cylinder body parts placed disorderly on the conveyor belt based on the visual image template and adjusting the position of the gripper was studied.The timing control method was used to coordinate the movement rhythm between the robot,vision sys-tem,and conveyor chain,improving the positioning accuracy and reliability of system operation,and achieving efficient and high-precision intelligent unmanned CNC machining.
visual imagebus controldigital twinsoffset capturetiming control
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