1. Function development trend

The CNC system is an important part of the gantry milling process. The operator operates the CNC system through the user interface to control the large-scale CNC gantry milling to process the workpiece. Because different users have different requirements for the interface, the workload of developing the user interface is large. The user interface has become one of the difficult parts in the development of computer software. The appearance of the graphical user interface greatly facilitates the use of non-professional users. People can operate through windows and menus, which is convenient for blueprint programming and fast programming, and three-dimensional color dynamic graphics display , Graphics simulation, graphics dynamic tracking and simulation, different directions of view and partial display scaling function realization. With the upgrading of the numerical control system and the upgrading of the user interface somatosensory, the functions of the gantry milling processing in the future will be further developed.

2. Performance development trend

Efficiency, speed and accuracy are the key performance indicators of machining. Gantry milling adopts high-speed CPU chips, multi-CPU control systems and AC digital servo systems. At the same time, measures are taken to improve the dynamic and static characteristics of the machine tool to ensure the speed of the machining. Efficiency and accuracy have been greatly improved. The MTBF value of the numerical control device used in the current foreign gantry milling processing equipment can reach 6000h or more, and the MTBF value of the servo system can reach 30,000h or more, and the reliability is very high. With the development of future technology, the CPU chip will reach higher speeds, the servo system will be more complete, and the performance of gantry milling will be greatly improved.

3. Structural development trend

The current gantry milling process uses highly integrated CPU/RISC chips and large-scale programmable integrated FPGA/EPLD/CPLD and application-specific integrated circuit ASIC chips, which can improve the integration of the CNC system and the speed of software and hardware. Application of FPD flat panel display technology can improve display performance. Flat panel displays have the advantages of high technology, light weight, small size, low power consumption, and easy portability. They can achieve large-size displays and become an emerging display technology that can compete with crt. The mainstream of Century Display technology applies advanced packaging and interconnection technology, integrates semiconductor and surface mount technology, reduces product prices, improves performance, reduces component size, and improves system performance by increasing integrated circuit density and reducing interconnection length and quantity. reliability. With the further development of intelligent technology, the size of chips and integrated circuits will be smaller and smaller, and the structure of Jieshi's gantry milling equipment will be greatly improved.

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