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Spark erosion machine with coupled wire electrode guidance heads

  • US 4,677,270 A
  • Filed: 03/21/1986
  • Issued: 06/30/1987
  • Est. Priority Date: 04/01/1985
  • Status: Expired due to Fees
First Claim
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1. A spark erosion machine using a wire-like tool electrode and including two spaced apart, coupled wire guidance heads for guiding the tool electrode in an erosion zone between the guidance heads, wherein each wire guidance head is pivotable in at least one plane about a pivot point for that plane;

  • a hydraulic pivot drive means associated with each guidance head for each plane of pivot for pivoting the guidance head in the pivot plane; and

    a hydraulic control means connected to each of the two pivot drive means for each plane of pivot for setting, in synchronism, the pivot of each guidance head while maintaining the axes of the wire guidance heads substantially parallel.

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