Coolant coupling device
AssigneesCitizen Watch Co., Ltd., Citizen Machinery Co., Ltd.
InventorKazuyuki IZUMI
Life of this patent
Estimating the term…
Abstract
A coolant coupling device (20) includes: a cylinder chamber (25) provided for a support member (2) for a tool rest (4) in a machine tool and supplied with coolant; a piston (P) movably arranged in the cylinder chamber (25); and a coolant supply flow channel (30) provided for the piston (P) for passing coolant therethrough. The piston (P) is driven by the coolant supplied to the cylinder chamber (25) so that an outlet (32) of the coolant supply flow channel (30) is connected to a coolant inlet port (10) of the tool rest (4) to supply the coolant to the tool rest (4). The piston (P) comprises a cylindrical projection (29) protruding toward and into the cylinder chamber (25), and the coolant supply flow channel (30) has an inlet (34) that opens at an outer peripheral surface of the cylindrical projection (29).
Claims2
A coolant coupling device comprising:
- a cylinder chamber provided for a support member for a tool rest in a machine tool and supplied with coolant;
- a piston movably arranged in the cylinder chamber;
- and
- a coolant supply flow channel provided for the piston for passing coolant therethrough;
- wherein said piston is driven by the coolant supplied to the cylinder chamber so that an outlet of the coolant supply flow channel is connected to a coolant inlet port of the tool rest to supply the coolant to the tool rest, characterized in that:
- the piston comprises a cylindrical projection protruding toward and into the cylinder chamber, and
- the coolant supply flow channel has an inlet that opens at an outer peripheral surface of the cylindrical projection.
Dependencies are inferred from the claim text.