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Published in:
2005 | OriginalPaper | Chapter
A Preliminary Study on a Torque Sensor for Tool Condition Monitoring in Milling
Authors : F. Tognazzi, M. Porta, F. Failli, G. Dini
Published in: AMST’05 Advanced Manufacturing Systems and Technology
Publisher: Springer Vienna
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The measure of cutting forces is one of the most usual methods in Tool Condition Monitoring (TCM). In this paper a cutting torque sensor for tool condition monitoring in milling is proposed. The device is based on inductive sensors that measure the relative rotation, due to the cutting torque, of two slotted disks fitted on the toolholder; a modification of the toolholder has been required to enhance the sensitivity of the device. During a preliminary stage, the measuring system has been designed and the optimization of the toolholder dimensions has been carried out by using both simplified and FEM-based approaches. To check the feasibility of the proposed device, a mechanical simulator installed on a lathe has been realized and its performance has been tested under different cutting conditions. The results show the validity of the method and encourage the use of the modified toolholder as instrument for tool condition monitoring.