CNC machining is a machining method that uses digital information to control the displacement of parts and tools. It is an effective way to solve the problems of variable parts, complex shapes, and high precision, and to achieve high-efficiency and automated processing.
The movement and auxiliary actions of the CNC machine tool are controlled by the CNC system. The instructions of the numerical control system are compiled by the programmer according to the material , the processing requirements, the characteristics of the machine tool, and the instruction format (numerical control language or symbols). The numerical control system sends out operation or termination information to the device and other functional components according to the program instructions to control various movements of the machine tool. When the program of parts finish, the machine tool will automatically stop. Numerical control processing has the following advantages: ①The quantity of tooling is greatly reduced, and complex tooling is not required for with complex shapes. If you want to change the shape and size of the part, you only need to modify the part processing program, It is suitable for new product development and modification. ②The processing quality is stable, the processing accuracy is high, and the repeat accuracy is high. ③The production efficiency is higher in the case of multi-variety and small batch production, which can reduce the time of production preparation, machine tool adjustment and process inspection, and reduce the cutting time due to the use of the best cutting amount. ④It can process complex shapes that are difficult to process by conventional methods, and even process than can not be seen.
CNC 3D technology can make CNC machining operations more accurate, avoid damage, and ensure the accuracy and efficiency of product processing. Through the series of complex algorithms, the working trajectory of the model is calculated to realize the rigging processing, rigging cutting and other simulation numerical control processing . During processing, the size and position of point, lines and surfaces are based on the origin of program. Therefore, it is best to give the coordinate size directly on the part drawing, or try to quote the size based on the same datum.