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本文论述了电主轴设计的生产战略与重要性:高动态特性和高刚度机床有助于保证大功率切削(HPC)和高速切削(HSC)加工生产战略。因此,电主轴结构必须满足下述要求:在HPC生产中要有最大功率和力矩,在HSC生产中要减轻重量和有振动阻尼,以达到最高速度。论述了电主轴设计的当前工艺水平及前景,简要介绍电主轴部件及相关技术:电机、轴承技术、刀具夹紧系统、冷却和润滑系统、传感系统及数据采集与分析的集成电子装置,显示了未来主轴的潜力。其焦点问题是“主轴”与其“外围”设备系统之间的相互作用,如冷却致冷系统,热膨胀控制与补偿系统,电气、电子元件与物理测量系统。 介绍了最新技术革新:Hydro-F的主题是带集成转子冷却与液压刀具夹紧系统的液体静压轴承主轴。生产实验将说明液体静压主轴有着优良的性能、速度和过程稳定性并确定其应用范围。Smart Vision是电主轴的数据采集、评价与监控电子系统。关键参数,如轴承温度、换刀次数、电机功率与转矩的监控是保证其过程稳定性和预测其使用寿命的基础。未来系统将可以与操作者主动通讯或采用某种接口,减少意外停机。将就实时解决方案做一介绍。
This article discusses the production strategy and importance of spindle designs: High dynamic performance and high stiffness machines help ensure high-power cutting (HPC) and high-speed cutting (HSC) production strategies. Therefore, the spindle structure must meet the following requirements: in HPC production have the maximum power and torque, HSC production to reduce weight and vibration damping, in order to achieve the highest speed. The current technological level and prospect of the spindle design are discussed. The spindle components and related technologies are briefly introduced: integrated electronics for motor, bearing technology, tool clamping system, cooling and lubrication system, sensing system and data acquisition and analysis, display The future of the potential of the spindle. The focal issue is the interaction between the “spindle” and its “peripheral” equipment systems such as cooling refrigeration systems, thermal expansion control and compensation systems, electrical, electronic components and physical measurement systems. Introducing the latest technological innovations: Hydro-F’s main theme is a hydrostatic bearing spindle with integrated rotor cooling and hydraulic tool clamping system. Production experiments will show the hydrostatic spindle has excellent performance, speed and process stability and determine the scope of its application. Smart Vision is the electronic spindle data acquisition, evaluation and monitoring of electronic systems. Key parameters such as bearing temperature, tool change times, motor power and torque monitoring are the basis for ensuring process stability and predicting their useful life. Future systems will be able to proactively communicate with operators or adopt some kind of interface to reduce unplanned downtime. Will introduce a real-time solution.