MACHINE TOOL WITH A TOOL CLAMPING DEVICE AND AN ASSOCIATED TOOL
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United States of America Patent
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Issued Date -
Nov 8, 2012
app pub date -
May 4, 2012
filing date -
May 6, 2011
priority date (Note) -
Abandoned
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Abstract
A tool clamping device for a machine tool has a tool spindle with a first clamping unit, which is coupled to a drive unit. A conventional tool can be clamped and rotatably driven about a rotational axis by means of a first clamping unit. To clamp a heavy tool, a plurality of second clamping units are additionally arranged by means of a housing on the base body of the tool clamping device and about the rotational axis. The heavy tool is clamped by the first clamping unit and the second clamping units and rotatably driven by means of the first clamping unit. For this purpose, the heavy tool has a corresponding first counter-clamping unit and corresponding second counter-clamping units. The tool head of the heavy tool coupled to the first counter-clamping unit and can be rotatably driven by means of the latter.
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