Design and implementation of an interpolation processor for CNC machining

作者：Dong Jing Chuan; Wang Tai Yong^*; Li Bo; Wang Xian; Liu Zhe

来源：Advanced Materials Research, 2013, 819: 322-327.

DOI：10.4028/www.scientific.net/AMR.819.322

• Computerized numerical control
• Computerized numerical control system
• Design and implementations
• High performance control
• High precision machining
• Interpolation algorithms
• Proposed architectures
• Very long instruction words

As the demand for high speed and high precision machining increases, the fast and accurate real-time interpolation is necessary in modern computerized numerical control (CNC) systems. However, the complexity of the interpolation algorithm is an obstacle for the embedded processor to achieve high performance control. In this paper, a novel interpolation processor is designed to accelerate the real-time interpolation algorithm. The processor features an advanced parallel architecture, including a 3-stage instruction pipeline, very long instruction word (VLIW) support, and asynchronous instruction execution mechanism. The architecture is aimed for accelerating the computing-intensive tasks in CNC systems. A prototype platform was built using a low-cost field programmable gate array (FPGA) chip to implementation the processor. Experimental result has verified the design and showed the good computing performance of the proposed architecture.

• 出版日期2013
• 单位天津大学