Collet
AssigneeBig Alpha Co., Inc.
InventorTsuyoshi Komine
Life of this patent
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Abstract
The present invention provides a collet capable of efficiently supplying a cooling fluid such as a cutting fluid to a tool and thereby realizing satisfactory cooling by adjusting the flow velocity of the cooling fluid according to the diameter of the tool held by the collet. The collet comprises: a collet body for inserting the shank of the tool, a slot formed at least from the tool insertion side, and a weir member inserted into the slot. The weir member extends from a position recessed from the inner surface of the collet body in a direction closer to the outer surface of the collet body and reaches the outer surface thereof, and a gap S through which the fluid can flow is formed between the weir member and the inner surface of the collet body.
Claims20
A collet for holding a tool by inserting the shank of the tool into a center hole of the collet mounted in a tool holder for supplying a fluid to the tool, the collet comprising:
- a collet body for inserting the shank of the tool therein;
- a slot formed at least from the tool insertion side of the collet body;
- and
- a weir member inserted into the slot;
- wherein the weir member extends from a position recessed from the inner surface of the collet body in a direction closer to the outer surface of the collet body, and a gap for the fluid to flow therethrough is formed between the weir member and the inner surface of the collet body.
Dependencies are inferred from the claim text.