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CNC press brake is a kind of machine which can bend thin plate. Its structure mainly includes bracket, worktable and splint. The worktable is installed on the bracket; The worktable is composed of a base and a pressing plate; The base is connected with the splint through a hinge; The base is composed of a base shell, a coil and a cover plate; The coil is arranged in the groove of the seat shell; And the top of the groove is covered by a cover plate. When in use, the coil is electrified through the wire, and after electrifying, it will generate attraction to the pressing plate, so as to realize the clamping of the thin plate between the pressing plate and the base. Due to the electromagnetic force clamping, the pressing plate can be made into a variety of workpiece requirements, and can process the workpiece with side wall, the operation is very simple.
At present, the development trend of CNC bending machine system is mainly reflected in three aspects: performance, function and architecture.
Efficiency and quality are the key performance indicators of advanced manufacturing technology and the main body of advanced manufacturing technology. If high-speed CPU chip, RISC chip, multi CPU control system, high-resolution detection components, AC digital servo system, supporting motorized spindle, linear motor and other technologies are adopted, the efficiency, product quality and grade can be greatly improved, the production cycle can be shortened, and the market competitiveness can be improved. In the next few years, ultra precision CNC bending press will develop into a new generation of precision, high speed, intelligent, nano CNC bending machine.
CNC bending machine system adopts a new generation of modular design, which has wider function coverage and stronger reliability, and can meet the needs of different users. The same group control system can automatically adjust the information flow dynamically according to different production processes to give full play to the functions of the group control system.
After the parts are clamped on the numerical control bending machine for the first time, the multi axis linkage processing can automatically change the tool, rotate the main shaft head, rotate the worktable, and complete the multi process and multi-faceted composite processing, which not only has high finish, but also greatly improves the efficiency.
Users can carry out the secondary development of CNC bending machine system software according to their own needs, and the user's scope of use is no longer limited by the manufacturer.
In the field of CNC bending machine technology, the research and application of real-time intelligent control are developing in the following directions: adaptive control, fuzzy control, neural network control, expert control, learning control, feedforward control, etc. Such as programming expert system, fault diagnosis expert system, when the system failure, diagnosis, maintenance and other intelligent
The user interface is the dialogue interface between the CNC bending machine system and the user. The GUI should be suitable for all kinds of users, including non professional users. Through window and menu operation, the functions of graphic simulation, graphic dynamic tracking, simulation and fast programming can be realized.
Information exchange is no longer limited to words and languages, but can directly use visual information such as graphics, images and animation. Visualization technology can be used for computer aided design / computer aided manufacturing, automatic parameter setting, tool compensation, display and visual simulation of machining process.
Interpolation methods include linear interpolation, circular interpolation, cylindrical interpolation, spatial elliptic surface interpolation, thread interpolation, polar interpolation, polynomial interpolation and so on. Compensation functions include perpendicularity compensation, clearance compensation, quadrant error compensation in arc interpolation, pitch and measurement system error compensation, tool radius compensation, temperature compensation, etc.
Interpolation methods include linear interpolation, circular interpolation, cylindrical interpolation, spatial elliptic surface interpolation, thread interpolation, polar interpolation, polynomial interpolation and so on. Compensation functions include perpendicularity compensation, clearance compensation, quadrant error compensation in arc interpolation, pitch and measurement system error compensation, tool radius compensation, temperature compensation, etc.
CNC bending machine system is equipped with high-performance programmable controller, which can be programmed directly with ladder diagram or high-level language, and can be debugged and edited online.
It adopts highly integrated CPU, RISC chip, large-scale programmable integrated circuit and ASIC chip, which improves the density of integrated circuit
The running speed of software and hardware and the reliability of CNC bending machine system.
In order to realize the integration and standardization of CNC bending machine system, the central processing unit, memory, position servo, programmable controller, input / output interface, communication and other modules are made into standard series products to form different levels of CNC bending machine system.
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