教学式微型数控铣床的研制与应用

Development and application of teaching micro CNC milling machine

工业数控铣床体积庞大,结构复杂,系统开放性差,价格昂贵,增加了企业和学校培养相关专业技术人员的成本,制约了数控铣床的进一步发展。为了解决此问题,以国内现有数控铣床及前人研究成果为研究基础,设计了一种集成度高、成本低、搬运方便、结构简单、灵活度高的教学式微型数控铣床,并对该微型数控铣床进行了加工试验。试验结果表明,主轴转速为3000 r/min,进给率为300 mm/min,用1 mm的雕刻刀加工时,该教学式微型数控铣床加工误差为0.6~0.8 mm,可良好反映被加工物体的形状。由此可见,该微型铣床能够满足学员对数控机床的基础学习要求,也能满足雕刻加工的要求。期望该研究能降低培养数控技术人才的成本。

Industrial CNC milling machines are large in size,complex in structure,poor in system openness and expensive,which increases the cost of training relevant professional and technical personnel in enterprises and schools,and restricts the further development of CNC milling machines.In order to solve this problem,based on the existing domestic CNC milling machines and the research results of predecessors,a teaching micro CNC milling machine with high integration,low cost,convenient handling,simple structure and high flexibility is designed.A micro CNC milling machine is used for processing experiments.The test results show that the spindle speed is 3000 r/min,the feed rate is 300 mm/min,and the machining error of this teaching micro CNC milling machine is 0.6~0.8 mm when machining with a 1 mm engraving knife,which can well reflect the shape of the processed object.It can be seen that the micro milling machine meets the basic learning of CNC machine tools and the requirements of engraving processing.It is expected that this research can reduce the cost of training CNC technical personnel.