CNC bending machine is a new type of large-scale machine. Its high precision is favored by many people. It can adopt flexible operation methods, which can be linked with two machines to solve the problem of processing too long sheets, and can be processed by a single machine, which can effectively improve the use of rate, reduce energy consumption, and the compensation is automatically adjusted by the numerical control system, which is convenient and accurate.
From the current point of view, the development trend of CNC bending machine system is mainly reflected in three aspects: performance, function and architecture, which are specifically expressed as:
1.Performance
①High precision, high speed and high efficiency
Efficiency and quality are the key performance indicators of advanced manufacturing technology and the main body of advanced manufacturing technology. If high-speed CPU chips, RISC chips, multi-CPU control systems, high-resolution detection components, AC digital servo systems, supporting electric spindles, linear motors and other technologies are used, the efficiency can be greatly improved, the quality and grade of products can be improved, and the production cycle can be shortened. Improve market competitiveness. In the next few years, ultra-fine CNC bending machine punches are developing towards refinement, high speed, intelligence and nanotechnology, and a new generation of CNC bending machine tools will be merged.
②Flexibility
The CNC bending machine system adopts a new generation of modular design, with wider functional coverage and stronger reliability, which can meet the needs of different users. The same group control system can automatically adjust the information flow dynamically according to different production processes, and play the function of the group control system.
③Multi-axis
Multi-axis linkage processing, after the parts are clamped on a CNC bending machine machine tool, automatic tool change, rotating spindle head, rotating table and other operations can be performed to complete multi-process and multi-surface composite processing, not only high finish, And the efficiency is also greatly improved.
④Open software and hardware
Users can carry out the secondary development of the CNC bending machine system software according to their own needs, and the user’s scope of use is no longer restricted by the manufacturer.
⑤Intelligent
In the field of CNC press brake technology, the research and application of real-time intelligent control are developing along: adaptive control, fuzzy control, neural network control, expert control, learning control, feedforward control and so on. Such as programming expert system fault diagnosis expert system, when the system fails, the diagnosis and maintenance are realized intelligently.
2.Function
①Graphical user interface
The user interface is the dialogue interface between the CNC bending machine system and the user. The graphical user interface should be suitable for all kinds of users including non-professional users. It can be operated through the window and the sheet, which can realize graphic simulation, graphic dynamic tracking and simulation. and fast programming.
②Visualization of scientific computing
The exchange of information is no longer limited to the expression of words and language, and can directly use visual information such as graphics, images, and animations. Visualization technology can be used for CAD/CAM, automatic parameter setting, tool compensation, display and visual simulation of machining process.
③Interpolation and compensation diversification
The interpolation methods include linear interpolation, circular interpolation, cylindrical interpolation, spatial elliptic surface interpolation, thread interpolation, polar coordinate interpolation, polynomial interpolation, etc. Compensation functions include verticality compensation, clearance compensation, error compensation for passing quadrants during circular interpolation, pitch and measurement system error compensation, tool radius compensation, temperature compensation, etc.
④High-performance built-in
The CNC bending machine system is equipped with a high-performance PLC, which can be programmed directly with ladder diagram or language, and can be debugged and edited online to establish its own application program.
3.Architecture
①Integration
Using highly integrated CPU, RISC chip and large-scale programmable integrated circuit, and special integrated circuit chip, improve the integrated circuit density, software and hardware running speed and system reliability of CNC bending machine system.
②Modular
Realize the integration and standardization of CNC bending machine system, and make CPU, memory, position servo, PLC, input and output interface, communication and other modules into standard serial products to form different grades of CNC bending machine systems.
