• 제목/요약/키워드: 이송드라이버 전류

검색결과 1건 처리시간 0.014초

이송모터 전류 감지를 통한 절삭력의 간접측정과 절삭공정 감시 및 제어에의 응용 (Indirect Cutting Force Measurement by Using Servodrive Current Sensing and it's Application to Monitoring and Control of Machining Process)

  • 김태용;최덕기;주종남;김종원
    • 한국정밀공학회지
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    • 제13권2호
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    • pp.133-145
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    • 1996
  • This paper presents an indirect cutting force measuring system, which uses the current signals from the AC servo drive units of the horizontal machining center, with its applications to the adaptive regulation of the cutting forces in various milling processes and to the on-line monitoring of tool breakage. A typical model for the feed-drive control system of a horizontal machining center is developed to analyze cutting force measurement from the drive motor. The pulsating milling forces can be measured indirectly within the bandwidth of the current feedback control loop of the feed-drive system. It is shown that the indirectly measured cutting force signals can be used in the adaptive controller for cutting force regulation. The whole scheme has been embedded in the commercial machining center and a series of cutting experiments on the face cutting processes are performed. The adaptive controller reveals reliable cutting force regulating capability against the various cutting conditions. It is also shown that the tool breakage in milling can be detected within one spindle revolution by adaptively filtering the current signals. The effect of the cutter run-out has been considered for the reliable on-line detection of tool breakage.

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