Tool holder with straight spray of cooling water for machine tool

A Tool Holder with Straight Spray of Cooling Water for Machine Tool for connecting a tool to the machine tool and spraying cooling water, supplied from a cooling water supply unit, between the tool and the workpiece that comprises:

• a body that provides a mounting space in which the tool is mounted, and is linked to the rotational motion of the machine tool while being connected to the machine tool;
• a housing unit that covers the outer surface of the body;
• a cap nozzle unit that is disposed to surround the outer circumferential surface of the tool while being connected to the lower side of the housing unit, and configured to spray the cooling water between the tool and the workpiece;
• an adapter unit that is mounted on the machine tool, providing a passage for cooling water supplied from the cooling water supply unit, and determining a mounting position of the body to the machine tool;
• and
• a side rod unit that connects the adapter unit and the housing unit while being connected to the side of the housing unit, and moves the cooling water supplied from the adapter unit to the cap nozzle unit,
• wherein the cap nozzle unit forms a retention space between the housing unit and itself for cooling water to stay, and is provided with a plurality of drain holes in a direction parallel to the external exposure direction of the tool, and the cooling water in the retention space is discharged through the plurality of drain holes while rotating in the same direction as the tool by receiving rotational force from the rotating tool in the retention space, and secures straightness toward the end of the tool by the centripetal force formed in the retention space.