A tool module for real-time tool condition monitoring during precision machining

摘要

The tool module 10 includes a tool holder 12 and a cutting tool 14 mounted to the tool holder. The cutting tool comprises an integrated sensing element (22, Figure 5), being a resistance temperature detector (RTD). The tool holder also housing a control unit (not shown) for the acquisition and processing of signals generated by the integrated sensing element into data. A communication unit (not shown) is for transmitting data relating to a condition of the cutting tool from the control unit. The tool module may be connected to a tool assembly on, for example, a mill or a lathe. The data may be transmitted from the control unit to a data management platform using wireless technology. The RTD may be embedded into a surface of the tool and may be a platinum type RTD. The RTD may be protected by a ceramic cover. The tool holder may include a further sensing element such as a vibration or acoustic sensor. The cutting tool material may be polycrystalline diamond (PCD) or polycrystalline cubic boron nitride (PCBN).