Citizen Watch Company, Ltd.

Citizen Machinery Co., Ltd.

Tadayasu Shida

Yosuke Ando

Tomonori Maehara

Koichi Yabe

Yohichi Kataoka

Shinpei Kai

Provided are a coolant supply device and a machine tool in which ejection of a coolant is easily switched on and off. A coolant supply devicefor supplying a coolant to a workpiece machining area in a machine tool, the coolant supply device comprising: a rotary nozzleformed to have a cylindrical shape and having, at an outer circumferential face thereof having the cylindrical shape, an ejection portfor ejecting the coolant; and a supply device bodyrotatably supporting the rotary nozzle and configured to be capable of supplying the coolant to the rotary nozzle. The supply device body is configured to be capable of switching an ejection allowed range in which the ejection port is opened and an ejection stopped range in which the ejection port is blocked from each other in accordance with rotation of the rotary nozzle.

Coolant supply device and machine tool

A machine tool includes a main spindle movably supported in an axial direction, and two gang tool posts disposed opposed to each other with an axis of the main spindle located therebetween. Each of the two gang tool posts is supported movably in X and Y directions that are perpendicular to the axial direction of the main spindle. Each of the two gang tool posts is provided with tools arranged parallel to each other in the Y direction. One of the two gang tool posts is movably disposed in a Z direction that is a same direction as the axial direction of the main spindle. Any one of the two gang tool posts is integrally provided with a turning tool base that turnably supports tools about a Y-axis along the Y direction.

Machine tool

Growing community of inventors

Hannou, Japan

Tadayasu Shida