| 摘要 |
PURPOSE: A milling chuck for preventing cutting oil from flowing is provided to obtain stable rotation of the milling chuck by forming a reinforcing protrusion unit between a flange unit and a clamping unit. CONSTITUTION: A milling chuck for preventing cutting oil from flowing comprises a flange unit(112), a clamping unit(113), a reinforcing protrusion unit(114), and a clamping nut unit(120). The flange unit is formed on a lower part of a connection unit. An upper stepped blocking(116) is formed on the lower surface of the flange unit. The clamping unit is formed on a lower part of the flange unit and is formed in a tapered shape. The upper stepped blocking is separated from the reinforcing protrusion unit in a predetermined interval and is protruded to the downward direction. The reinforcing protrusion unit is formed between the flange unit and the clamping unit. A lower stepped blocking(121) which is upwardly protruded is formed on the upper end of the clamping nut unit. The lower stepped blocking is inserted to a recessed groove(115) formed by the upper stepped blocking and the reinforcing protrusion unit.
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