The article introduces the new technologies and methods in chassis of IPC design. It elaborates the process from following four parts: electromagnetic shielding, anti-libration and anti-impact design, thermal design and other protective design. The last part summarizes the design procedure and looks ahead to the future of this field.

Current signal can reflect the cutting state of the machine tools effectively. Two-dimensional fuzzy control strategy is introduced to realize the cutting current changing smoothly. With the current value used as the system input, segmented membership functions are constructed to satisfy the sensitivity and stability requirements. To verify the control system, an experiment is completed with the application of Matlab-simulink. The experimental results show that the fuzzy control strategy can not only effectively reduce the fluctuation degree of current but also highly improve the stability of the NC machining system.

Machine operating panel is an important component of controlling machine and the human-computer interaction. As CAN bus has the remote and stable transmission characteristic, the remote IO board is designed. A design of machine operating panel based on CAN bus for the PC-based CNC system is introduced, including the overall architecture design and software design method. This paper focuses on the remote IO board, as well as the practical application in the CNC system of TDNC-H8.

Overcut or speed impact exists in high-speed interpolation of consecutive tiny segments. Because the remaining distance of the current segment does not exactly equal to an interpolation cycle required distance. Taking processing accuracy as a precondition, a new inflection point processing method is proposed to solve this problem. With different solutions of different angles, this method realizes the tiny line continuous processing with high processing quality. And this method needs a small amount of calculation with strong real-time. Error analysis is done and it can meet machining accuracy requirements. Now this method has been applied to engineering practice.

Based on the traditional cradle-type epicycloids bevel gear machining theory, the mathematical model of the epicycloids spiral bevel gear machining is created. Then, by applying coordinate transformation from the cradle-type machine to a CNC one, a six-axis virtual CNC machine model is established. At the same time, the gear cutting simulation is carried out under VERICUT according the properties of the general six-axis CNC and the relevant configuration parameters. By means of this method, the accuracy of the epicycloids bevel gear cutting system based on a general six-axis CNC can be well verified. Finally, a cutting experiment is conducted.