| The author has performed the further research and analysis for the NC machine design and modification combined with NC machine modification project of our company on the basis of the constant consultation of abundant relative materials. This paper focuses on describing the design of control system of the machine. NC system is the centralization of the whole control system, the CNC system, electrical control system and the servo system can be operated coordinately and uniformly via the design of programmable controller so as to realize the NC. It also discusses the content and step of the system adjustment of the whole NC machine, analyses the PLC control procedure of NC machine systematically, and adjusts the parameters of the CNC machine based on the design of NC modification, in addition, the NC system has been adjusted and located to optimize the whole control performance. The auxiliary function of the machine is designed, the moving trace of each axis is measured and the causes of error which deal with the use of the powerful erroneous compensation of the NC system of the machine are analyzed. Finally the machine is modified successfully and reached the standards as expected. |
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