Toshiba Kikai Kabushiki Kaisha

Yugen Kaisha Newly Laboratory

Teruaki Tsukiji

Makoto Sagara

Atsushi Tada

Takao Arai

Yusuke Ishii

Yuya Tanaka

Kazuhiro Takeuchi

Shun Tsunoda

Masato Inatsu

A guide mechanism for a machine tool includes a movement member and a guide member in a form of first and second rails the movement member and the guide member relatively movable to each other. A hydrostatic pressure guide mechanism and a sliding guide mechanism are formed between the movement member and the first and second rails. The hydrostatic pressure guide mechanism includes a static pressure chamber, a seal portion sealing a periphery of the static pressure chamber, and a supply passage configured to supply a lubricating oil into the static pressure chamber.

Guide mechanism of machine tool and machine tool

A hydrostatic pressure guide mechanism includes: a guide member having a smooth guide surface; a movement member having a slide surface facing the guide surface and an annular placement groove formed on the slide surface; an annular seal member (hermetically closing member) that is disposed in the placement groove and capable of hermetically contacting with the guide surface; an oil supply structure configured to supply an oil into a static pressure pocket on the slide surface surrounded by the seal member; and an oil recovery structure configured to recover the oil from the static pressure pocket, in which the oil recovery structure has a recovery hole that is formed in the static pressure pocket and is opened on the slide surface.

Hydrostatic pressure guide mechanism and machine tool

Growing community of inventors

Gotemba, Japan

Teruaki Tsukiji