Reconstruction of machine by using CNC system, which has the characters of low cost and short period, is an efficient means to restitute the machine.And that it can reinforce the old technology index.

• 机床数控改造是恢复机床生命力的有效方法,其成本低、周期短,并能增强原机床技术性能指标,已经成为适合我国国情,促进制造业技术进步的重要手段。