Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Diagnosis of Cutting Stability of Portable Automatic Beveling Machine Using Spindle Motor Current

주축 모터를 이용한 포터블 자동 면취기의 가공 안정성 진단

  • Received : 2021.11.11
  • Accepted : 2022.01.27
  • Published : 2022.01.31
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Abstract

This study describes a system that monitors the tool and cutting state of automatic beveling operation in real time. As a signal for cutting state monitoring, a motor current detected from the spindle drive system of the automatic beveling machine is used to monitor abnormal state. Because automatic beveling is processed using a face milling cutter, the cutting force mechanism is the same as the milling process. The predicted cutting torque is obtained using a cutting force model based on specific cutting resistance. Then, the predicted cutting torque is converted into the spindle motor current value, and cutting state stability is diagnosed by comparing it with the motor current value detected during beveling operation. The experimental results show that the spindle motor current can detect abnormal cutting state such as overload and tool wear during beveling operation, and can diagnose the cutting stability using the proposed equip-current line diagram.

Keywords

Acknowledgement

연구는 산업통상자원부와 중소기업기술정보진흥원의 "산학연 Collabo R&D" (과제번호 G21S286661102)으로 수행된 연구결과 입니다.

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