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Device for checking the position of a spindle in a machine tool

  • US 7,043,333 B2
  • Filed: 03/11/2004
  • Issued: 05/09/2006
  • Est. Priority Date: 03/13/2003
  • Status: Expired due to Fees
First Claim
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1. A device for checking a position of a spindle in a machine tool presenting a structure serving to support the spindle and means for setting the spindle in motion along three axes X, Y, and Z within a predetermined machining zone, comprising:

  • a plurality of means, located externally of the machine tool, for emitting electromagnetic signals;

    means, installed on the spindle, for receiving electromagnetic signals;

    a master control unit connected on an output side to the means for setting the spindle in motion along the axes and incorporating means for processing and transmitting signals indicating the distance between each of the emitting means and the receiving means; and

    means for identifying the position of the spindle on the basis of the signals indicating the distances between the emitting and receiving means.

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