The fully Automatic CNC Cylindrical Grinding Machine adopts a dual-channel control path, which is one of the key technologies to achieve the synchronization of grinding and robot handling. This design not only improves production efficiency, but also optimizes the space utilization and operational flexibility of the machine tool. The following will describe its working principle and implementation method in detail from the aspects of system architecture, control logic, mechanical layout, and operation process.
The dual-channel control path means that in the CNC system, the motion control of the machine tool is divided into two independent channels, each channel is responsible for different tasks or functions. Usually, one channel is used for grinding processing and the other channel is used for robot handling. Channel 1 is responsible for grinding operations such as workpiece rotation, grinding wheel feeding, and worktable movement. Channel 2 is responsible for loading and unloading operations such as movement, grabbing, and placement of the robot.
Modern CNC systems all support multi-channel control functions. For example, GSK 986G supports up to 4 channel control, which can realize multi-axis linkage and multi-task parallel; Siemens 840D supports multi-axis control and multi-task scheduling, which is suitable for complex processing scenarios; the new generation CNC system provides a graphical interface for users to configure and debug dual-channel paths.
Under dual-channel control, the system realizes the synchronization of grinding and handling through task allocation and scheduling. Before the machine tool is started, the user assigns the grinding task to channel 1 and the handling task to channel 2 through programming. The system automatically schedules the operation order of the two channels according to the task priority and time schedule. For example, the manipulator grabs the workpiece from one side of the machine tool and puts it into the processing area; the machine tool starts grinding; the manipulator remains stationary during the grinding process and waits for the processing to be completed.
The system ensures that the operation of the two channels will not conflict through synchronous control and event-driven methods. When the manipulator completes the grabbing of a workpiece, the system automatically triggers the start of the grinding channel and enters the next processing cycle. At the same time, the system monitors the status of the two channels in real time to ensure that the grinding channel is idle during the handling process to avoid collision or interference.
The installation position and movement mode of the robot are the key to achieving flexible access. The robot is usually installed on the left and right sides of the machine tool to facilitate loading and unloading from different directions. The robot adopts a multi-joint structure, which can achieve a wide range of rotation and extension to adapt to workpieces of different sizes. The robot can enter the machine tool from one side, complete the grabbing or placement, and then exit from the same side; it can also enter and exit from the left and right sides of the machine tool, improving operational flexibility and reducing interference with the processing area.