Numerical control milling intelligent optimazed control system based on embedded platform
A CNC milling and intelligent optimization technology, applied in the general control system, control/adjustment system, digital control, etc., can solve the problems of low ambiguity and uncertainty, and the inability to adjust dynamically, so as to avoid blindness and speed up data processing Fast, improve the effect of product processing quality
Inactive Publication Date: 2009-12-09
TONGJI UNIV
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Problems solved by technology
Due to the low ability of the CNC system to identify and deal with unpredictable, fuzzy and uncertain situations in the cutting process, in complex environments and changing conditions, the workpiece material, spindle speed, feed rate, tool trajectory, etc. , cutting depth, machining allowance and other processing parameters cannot be dynamically adjusted in real time according to external interference and random factors in the field environment, let alone randomly correct the set value through the feedback control link
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[0032] Such as figure 1 Shown is the system structure diagram of the present invention, in the figure: the upper part is the parameter optimization matching system part, and the lower part is the intelligent fuzzy controller. The parameter optimization and matching system is a set of software based on the Window2000 Professional operating system running on a PC. The optimization system software is based on the highest processing efficiency as the optimization goal. According to the processing depth, processing material and corresponding tool and machine tool parameters of the processing characteristics Constraint conditions are optimized and calculated, and the adaptive power target constraint value and the NC program adopts the spindle speed and feed speed. The software further provides matching rule parameters for online adjustment of the spindle speed override. The software uses the RS232 communication port to match the parameters. Adapt the target value to the fuzzy intell...
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An intelligent optimization control system for milling processing, including: a parameter optimization matching system and an intelligent fuzzy controller, the two parts are connected through a communication port, and also includes: a parameter optimization matching system software based on PC operation, and an RS232 communication line. The system can be used to carry out hierarchical intelligent control of the CNC milling process. The parameter optimization matching system provides the mutual matching between the feed speed, spindle speed, spindle motor power constraint value and parameters used by the controller through optimization calculation. Knowledge, parameter optimization and matching The system sends the power constraint value and matching knowledge to the fuzzy intelligent controller through asynchronous communication. The controller uses the fuzzy self-adaptive control method to adaptively adjust the override switch of the feed rate and the spindle speed within a certain range online. The override switch realizes adaptive intelligent control with the power of the spindle motor as the constraint target. The service life of the tool and the processing quality of the product can be improved, and the manufacturing cost can be reduced.
Description
technical field [0001] The invention belongs to the technical field of numerical control processing control, and relates to a numerical control processing intelligent control technology, in particular to a numerical control milling processing intelligent optimization control system. Background technique [0002] The technical level and modernization degree of the equipment industry determine the level and modernization degree of the entire national economy. Numerical control technology and equipment are important for the development of emerging high-tech industries and cutting-edge industries (such as information technology and its industries, biotechnology and its industries, aviation, aerospace, etc.) defense industry) enabling technologies and the most basic equipment. Numerical control technology is widely used in the manufacturing industries of various countries in the world today to improve manufacturing capabilities and levels, and improve adaptability and competitive...
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IPC IPC(8): G05B19/414G05B19/4155
Inventor 李爱平林献坤张为民刘雪梅左文涛冯小军蒋昇
Owner TONGJI UNIV