The development trend of today's CNC machine tools in Dongguan CNC plant is as follows:
At present, the world's advanced manufacturing technology continues to rise, the application of ultra-high speed cutting, ultra precision machining and other technologies, the rapid development of flexible manufacturing system and the continuous maturity of computer integrated system put forward higher requirements for CNC machining technology. Nowadays, CNC machine tools are developing in the following directions.
High speed, high precision speed and precision are two important indexes of CNC machine tools, which are directly related to processing efficiency and product quality. At present, the numerical control system adopts the processor with higher number and frequency to improve the basic operation speed of the system. At the same time, the ultra large scale integrated circuit and multi microprocessor structure are adopted to improve the data processing ability of the system, that is, to improve the speed and accuracy of interpolation operation. The linear servo feed mode of the machine tool table directly driven by the linear motor has the advantages of high speed and dynamic response. By using feedforward control technology, the tracking delay error is greatly reduced, and the machining accuracy of corner cutting is improved.
In order to meet the requirements of ultra-high speed machining, CNC machine tool adopts the structure of spindle motor and machine tool spindle, which realizes the integration of variable frequency motor and machine tool spindle. The bearing of spindle motor adopts magnetic floating bearing, hydrodynamic bearing or ceramic rolling bearing. At present, ceramic tools and diamond coated tools have been applied.