Chemistry: electrical and wave energy – Apparatus – Electrolytic
Reexamination Certificate
2008-01-15
2008-01-15
Nguyen, Nam (Department: 1753)
Chemistry: electrical and wave energy
Apparatus
Electrolytic
C204S285000, C269S055000
Reexamination Certificate
active
10996600
ABSTRACT:
On an apparatus for electrochemical precision machining, the tool holder (1) performing the oscillatory motion is supported by bearing bushes (25, 26) made of a swelling material within a casing (2) performing the feed motion. The swelling, cooling and lubricating liquid is supplied from liquid chambers (4, 5) provided in the casing. A further liquid chamber (6) prevents electrolyte from ingressing into the bearing bushes. The linear oscillatory motion of the tool holder is generated by a rocker (33) which is arranged vertically to the tool holder, extends through the casing and is driven by the eccentric (30) of a drive motor (29) with an associated frequency converter. A measuring device (42) and a fastener (43) enable the tool holder to be locked in a defined position, this permitting the apparatus to be operated with high accuracy also in the non-oscillating mode of the electrode.
REFERENCES:
patent: 3072777 (1963-01-01), McKechnie
patent: 3619544 (1971-11-01), Ullmann et al.
patent: 4430544 (1984-02-01), Inoue
patent: 1565393 (1970-02-01), None
patent: 2355675 (1974-05-01), None
patent: 1097774 (2001-05-01), None
German Search Report dated Aug. 16, 2004.
Klima Timothy J.
Nguyen Nam
Rolls-Royce Deutschland Ltd & Co KG
Van Luan V.
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