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Control structure for the active damping of low-frequency oscillations in numerically controlled machine tools

  • US 20040172171A1
  • Filed: 01/14/2004
  • Published: 09/02/2004
  • Est. Priority Date: 01/18/2003
  • Status: Active Grant
First Claim
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1. A control structure for the active damping of low-frequency oscillations in numerically-controlled machine tools, comprising:

  • an rpm regulator comprising;

    a proportional component; and

    an integral component;

    an active damping element that forms a low-frequency correction signal, which is phase-shifted with respect to an interfering low-frequency oscillation and free of d.c. components; and

    a summing point that is upstream or downstream of said integral component and receives said low-frequency correction signal.

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