关键词: 微细切削;微机床;子单元;研究现状;发展趋势

Abstract: Micro-cutting technology which has a unique advantage in 3D complex parts processing is a hot spot to precision and ultra-precision manufacturing technology research. Micro-cutting machine tool as an important part in micro-cutting technology has presented a miniaturized trend and became an emphasis in current research of micro manufacturing equipment. The research status of micro machine tool for micro-cutting are systematically summarized from the aspects of machine tool bed, micro spindle unit, feed table, micro cutting tools, NC system and monitoring system. Some key technology problems are analyzed such as miniaturized machine tool bed, high speed and high rotation accuracy of micro spindle, high precision and fast response of micro table, structure and performance of micro cutting tool, openness and high precision interpolation of NC system, visual monitoring of machining process, performance of machine tool and so on. Meanwhile, feasible countermeasures toward mentioned problems are presented. The development trend of micro machine tool for micro-cutting is forecasted.

Key words: micro-cutting;micro machine tool;sub-system;research status;development trend