Development of high performance CFRP spindle for machine tool applications

开发用于机床应用的高性能 CFRP 主轴

• 批准号: 12450062
• 负责人: INASAKI Ichiro
• 金额: $ 9.02万
• 依托单位: Keio University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12450062/
• 关键词: Machine tools; Main spindle; CFRP; High speed; Finite element method

It is required to machine tools for increasing the cutting speed. To meet such requirement, the main spindle must rotate with not only high speed but also with high acceleration. The aim of this research is to develop the spindle made of composite materials (Carbon Fiber Reinforced Plastics) so that the high rotation with small energy consumption can be achieved. The main results are summarized as foliows :1. The static stiffness, the dynamic stiffness, and the thermal stiffness of the spindle made of composite materials were calculated with the Finite Element Method. Based on the results, the CFP spindle was manufactured.2. The fundamental performances of the spindle such as static stiffness and the natural frequency were measured and compared with the FEM results. Satisfactory agreement between the calculated and measured values was obtained.3. The specific stiffness (static stiffness / weight) is doubled compared with the conventional metal spindle.4. Thanks to the reduced mass, the time needed to reach the maximum spindle speed could be decreased.5. The test spindle showed extremely high damping characteristic, which was effective for suppressing the chatter vibration.Important guide for making the CFRP spindle was summarized.

要求机床提高切削速度。为了满足这样的要求，主轴不仅必须以高速度旋转，而且必须以高加速度旋转。本研究的目的是开发复合材料（碳纤维增强塑料）制成的主轴，以实现低能耗的高旋转。主要结果概括如下： 1．采用有限元法计算了复合材料主轴的静刚度、动刚度和热刚度。在此基础上，研制出了CFP主轴。 2．测量了主轴的静刚度和固有频率等基本性能，并与有限元结果进行了比较。计算值与实测值吻合良好。 3．比刚度（静刚度/重量）较传统金属主轴提高一倍。 4．由于质量减轻，达到最大主轴速度所需的时间可以减少。5。试验主轴表现出极高的阻尼特性，可有效抑制颤振。总结了制作CFRP主轴的重要指导。

项目成果

K.Morihara: "Application of carbon fiber reinforced plastic(CFRP) for machine tool spindle"Proceedings of the First International Conference on Mechanical Engineering, Shanghai. 534-539 (2000)

K.Morihara：“碳纤维增强塑料（CFRP）在机床主轴上的应用”第一届国际机械工程会议论文集，上海。

K.Morihara: "Application of carbon fiber reinforced plastic (CFRP) for machine tool spindle"Proceedings of The First International Conference on Mechanical Engineering ICME2000, Shanghai. 534-539 (2000)

K.Morihara：“碳纤维增强塑料（CFRP）在机床主轴上的应用”第一届机械工程国际会议ICME2000论文集，上海。