Research On Open Architecture Gear Machining Numerical Control System Based On Network

Gears serve as the fundamental parts, which are widely employed in mechanical industry. As a result, the high demand for accuracy, efficiency and flexibility in processing is becoming more and more urgent. The development of gear CNC machine tools has been the orientation of gear machine tools recently. As the core, CNC system is sure to have the characteristics of open architecture, network, intelligence and flexibility, and has to meet the demand of high speed and high accuracy. In combination with the development of CNC system for hobbing machine tools, the open architecture gear machining CNC system based on network is studied and applied in this paper.Based on the analysis of motion principle of hobbing machine, the architecture of CNC hobbing machine with non-global function and global function is studied. In light of the different CNC processing methods of the generated chain and differential chain of global-function hobbing machine, the characteristics of software-interpolated and hardware control are analyzed. Furthermore, it is pointed that the combination of software and hardware is the orientation of generated chain control and differential chain control of gear CNC machine tools. Therefore it is convenient to process various non-circular gears and shape-repaired gears, and also to implement high response and high-accuracy control.The hardware and software of STAR CNC system for the six-axis global-function CNC hobbing machine tools are designed systematically and comprehensively in this paper. The object-oriented, parameterized automatic programming module of STAR CNC system is developed. The chasing interpolation algorithm of hobbing machining based on the reference signals of tool spindle is studied in detail and its calculation formulas are given. Meanwhile, the application examples of STAR CNC system are introduced.This paper also indicates that only by separating the CNC system software from hardware and operation system can we carry out the practical open system with regardless of the platforms. The architecture of open CNC system software based on quantum framework and the pattern of quantum programming are put forward in this paper. In view of this, the open gear CNC system based on quantum framework is researched and designed. Besides, the state charts of active objects of main software function are defined and parts of the programs are given in this paper.