Small hole electric discharge machine
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United States of America Patent
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Aug 27, 2019
Grant Date -
Mar 8, 2018
app pub date -
Sep 8, 2016
filing date -
Sep 8, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A small-hole electric discharge machine (100) applying voltage between a small-hole machining-use electrode (116) attached to a spindle (112) and a workpiece (130) attached to a table (118) to drill a small hole in a workpiece by electric discharge energy, the small-hole electric discharge machine including an electrode guide (10) having a hollow part through which the electrode is passed and guiding the electrode at the front end of the hollow part in a parallel state with respect to an axis (Rz) of the spindle while shifted by a predetermined distance (S) from the axis and a W-axis chuck (144) holding an electrode guide to be able to measure and maintain a position of a front end of the electrode guide in direction of the axis of the spindle and an angular position about the axis.
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