Thermal analysis of dry deep-hole drill was done by using ANSYS software,according to the thermal deformation problem existed in deep-hole dill system. According to the conclusion from thermal analysis,a set of device was designed which was used to reduce the temperature of dill automatically. In the device,PT100 temperature module was used to complete real time collec-tion of data,and according to the size of temperature signal,the operational state of deep-hole drill was adjusted automatically through PLC. The function of automatically adjusting control of temperature for the deep-hole drill system and switching of manual /automatic modes were implemented. This device has good expansibility,agility,reliability and stability.%根据深孔钻削系统存在的热变形问题,利用ANSYS软件对干式内排屑深孔钻头进行热工分析。根据热分析结论,设计了一套自动降低钻头温度的装置。该装置应用PT100温度模块完成数据的实时采集,并根据温度信号的大小,通过PLC自动调整深孔钻头的运行状态,实现深孔钻削系统的自动温度调节控制、手动/自动模式切换等功能。该装置具有良好的可扩展性、灵活性和可靠稳定性。
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