Analysis and Discussion on the Products of Numerical Control System
This test device is mainly for system level function and performance test, including establishing a unified zero point. We test the numerical control system, and the servo unit can be replaced by a simulation device. The "servo simulation device" and the CNC system being tested form a closed loop. During the closed loop operation, the data is collected to obtain the spindle code disc signal and the feed axis code disc signal, so that the closed loop CNC system does not have a matching servo. In the system, the CNC system can also be functionally tested. The external characteristics of the actual speed servo unit can be described by the series connection of the inertia link and the dead zone. The servo simulation device includes these two links. The device receives the motion command issued by the system and converts it into the same as the actual servo system. Various feedback signals are transmitted to the system and the system can be operated normally. The test computer also obtains various operational data of the system. The overall block diagram of the software is tested. The general-purpose template of the dead-end circuit diagram of the numerical control system is connected and connected through the bus. The digital quantity, the test device window initializes the main menu, and the upper-level motion coordinate buffer queue is created to create a timed interrupt event. When the above design ideas use real-time multitasking software design techniques. Firstly, the test device window initialization and the main menu initialization are performed, and a motion coordinate buffer queue is opened, which is mainly used for storing the motion coordinates read from the motion coordinate conversion module buffer, and then creating a timed interrupt event, which occurs in the trace group test event. When the message distribution introduces the program into the timed interrupt and the message without the test request occurs, the system does not enter the test. The system has passed the acceptance of the national eight-five scientific research project. Its development has been successfully put into operation, enabling CNC manufacturers to effectively test the reliability of the CNC system and molded products developed, as well as the correctness and completeness of the functions, to identify problems and solve them early. In addition, the system can provide various experimental platforms and means for the "NC system design" and "CNC programming" of colleges and universities. (Finish) Air Relief Valve,Tank Valve,Air Control Valve Inner tube and Flap,Motorcycle Tyre Co., Ltd. , http://www.chinamotorcyclewheel.com