1. Performance development trend
Efficiency, speed and precision are the main performance indicators of machining. The high-speed CPU chip, multi CPU control system and AC digital servo system are selected for large-scale CNC Longmen milling. At the same time, countermeasures such as improving the dynamic and static characteristics of the machine tool are adopted to greatly improve the speed efficiency and precision of large-scale CNC Longmen milling. At present, the MTBF value of the numerical control device used in the large-scale CNC gantry milling processing equipment overseas can reach more than 6000h, and the MTBF value of the servo system can reach more than 30000h, with high reliability. With the development of science and technology in the future, the CPU chip will reach a higher speed, the servo system will be improved, and the performance of large-scale CNC gantry milling will be improved.
2. Performance development trend
CNC system is an important part of large-scale CNC gantry milling. Operators operate through the user interface near the CNC system, so as to operate large-scale CNC gantry milling to process workpiece. Due to the different requirements of different users for the interface, the workload of opening up the user interface is huge. The user interface has become one of the difficult parts in the development of computer software. The appearance of the graphical user interface greatly simplifies the use of non special users. People may as well operate through the window and menu, which is convenient for blueprint programming and rapid programming, 3D color three-dimensional dynamic graphics Display, graphic simulation, graphic dynamic tracking and simulation, view of different targets and one-sided display scale performance. With the upgrading of CNC system and the upgrading of user interface, the future performance of large-scale CNC gantry milling will be further developed.
3. Structure development trend
At present, the high integrated CPU / RISC chip, FPGA / EPLD / CPLD and ASIC chip are used in large-scale CNC gantry milling, which can improve the integration degree of CNC system and the operation speed of software and hardware. FPD flat panel display technology can improve the performance of the display device. The flat panel display device has the advantages of high technology content, light weight, small size, low power consumption, easy to carry and so on. It can complete large-scale display, becoming a new display technology that resists CRT. It is the mainstream of display technology in the 21st century. Advanced packaging and interconnection technology are used to integrate semiconductor and surface installation technology, By increasing the density of integrated circuit and reducing the number and length of interconnection, the product value, performance, component size and reliability of the system can be reduced. With the further development of intelligent technology, the volume of chips and integrated circuits will be smaller, and the structure of large CNC gantry milling processing equipment will be greatly improved.
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