Analysis of Development Status and Trends of Global CNC Machine Tools and Control Systems

The 2012 Chicago International Manufacturing Technology (Machine) Exhibition (IMTS2012) showcased the latest technological developments and trends in the international machine tool industry. The IMTS exhibition showcased high-tech CNC machine tools and numerical control systems, demonstrated the latest technology and production methods, and highlighted the future development trend of CNC machine tools.

1. Status Quo of Foreign CNC Machine Tools (1) High-speed, high-precision and multi-axis machining has become the mainstream of CNC machine tools, and nano-control has become the trend of high-speed, high-precision machining.

(2) Multi-tasking and multi-axis machining CNC machines are increasingly used in energy, aerospace and other industries.

(3) The integration of machine tools and robots is becoming more and more popular, and the structure is diversified, the scope of application is expanded, the speed of movement is high, the multi-sensor fusion technology is practical, the control functions are intelligent, and multi-robots are coordinated and popularized.

(4) The intelligent processing and monitoring functions are continuously expanded. The workshop's process monitoring and management can acquire the status information of the machine tool in real time, analyze the relevant data, predict the status of the machine tool, perform relevant maintenance in advance, avoid accidents, and reduce the number of machine tools. Failure rate, improve the utilization of machine tools.

(5) The latest machine tool error detection and compensation technology can complete the compensation measurement of the machine tool in a relatively short time. Compared with the traditional laser interferometer, the accuracy of the machine tool error compensation can be improved by 3 to 4 times, and the efficiency can be obtained. raised dramatically.

(6) The latest CAD/CAM technology provides powerful support for the machining of multi-axis multi-task CNC machine tools, which can greatly improve the machining efficiency.

(7) Tool technology has developed rapidly. The design of numerous tools covers the entire machining process, and the new tool can meet the requirements of smooth machining and vibration resistance.

2. Current Status of Foreign Machine Tool Numerical Control Systems (1) FANUC's latest FS30i/31i/32i/35i-MODELB numerical control system is FANUC's latest artificial-intelligence nano-numerical control system. This series of numerical control systems flexibly supports machining centers and lathes. Composite machine tools, five-axis machine tools and a variety of high-speed high-precision machine tools. The system supports 1FL-net, 2PROFIBUS-DP, 3DeviceNet, 4I/OLink-II, and fieldbus. The system can realize nano-level high-precision interpolation, providing programming and operation navigation, and achieving system operation visibility and operability. The system provides functions such as rigid tapping, large machine control, and double check safety.

(2) Mitsubishi M700V uses the latest 64-bit RISC instruction set and high-performance fiber optic servo network, with nano-level interpolation technology, ultra-smooth surface control SSS algorithm, optimized machine tool response control, high-precision correction function , Easy to use menu design and pleasant online help function, real-time 3D graphical monitoring design.

(3) SIEMENS company's latest system 828D and 840Dsl, highlighting compact, strong, simple, perfect and other features. Work in 80bit floating-point calculation accuracy, advanced surface technology to obtain the highest workpiece accuracy, especially for mold processing. Intelligent positioning and motion conversion, ensuring the correct machining position, unique ShopMill/ShopTurn sequential programming functions: easy programming, greatly reduced programming time, dynamic line graphics display, wide range of cycles, complex profile geometry processors, high program quality CNC simulation.

(4) HEIDENHAIN's iTNC530 friendly interface, workshop-oriented programming methods, dialog programming and SmarT. NC programming, DXF conversion, 0.5ms block processing time and excellent contour machining accuracy and 5-axis machining features, with DCM dynamic collision monitoring, AFC adaptive feed control, dialogue format programming, TNCGuide, global program parameter settings 3. The development trend of foreign digital control systems 1 Platform digital. 2High speed operation. 3 processing of high precision. 4 functional composite. 5 control intelligence. 6 servo drive high performance control.