Toshiba Kikai Kabushiki Kaisha

Yazaki Corporation

Masaaki Mitsuzono

Kazuo Nagashima

Atsushi Tada

Yutaka Tsukita

Kenji Miura

Hiromi Yamasaki

Hideki Hayashi

A driving simulation test apparatus includes a movable body, a first translational drive portion that extends along a first direction, a first translational guide portion that extends along the first direction, and a plurality of first bases that extends along the first direction and is spaced from each other in a second direction. The first translational drive portion and the first translational guide portion are aligned in the second direction on each of the plurality of first bases, and the first translational drive portion includes a plurality of first translational drive portions arranged on each of the first bases.

Driving simulation test apparatus including a movable body capable of translational movement

There is provided a vertical lathe which, when machining gradually varying lens grooves in a mold for molding of a Fresnel lens, can change the angle of a cutting tool without positional displacement of the cutting tip, enabling high accuracy machining of the gradually varying lens grooves. The vertical lathe includes: a column; a rotary table for rotating a workpiece; a cantilevered cross rail supported by the column; a saddle movable in a horizontal direction along a guideway of the cross rail; a ram suspended from the saddle and movable vertically along a guideway of the saddle; and an inclined head mounted to the lower end of the ram and having an inclined swivel shaft for holding a cutting tool, wherein said swivel shaft is configured to swivel the cutting tool around a nose of the cutting tool as the center of swiveling.

Vertical lathe

There is provided an NC machine tool with tiltable spindle unit capable of being used both as vertical and inclined spindle type machine tools without restrictions on stroke and capable of easily carrying out tool measurement, alignment of a work piece with a tool, and truing. The NC machine tool includes: a spindle unit having a spindle serving both as a vertical spindle and an inclined spindle; and a tilting mechanism having a turning shaft for pivotably supporting the spindle unit on a vertical plane. The turning shaft has a center line of rotation which is arranged in the vicinity of a top end of a tool on a center line of the tool.

NC machine tool with tiltable spindle unit

A spindle head holder ( ) is pivoted on a base member ( ), a linear drive ( ) is mounted to the base member ( ), a linear guide ( ) is mounted to the spindle head holder ( ), and an engagement member ( ) is engaged with both linear drive and linear guide at a substantially identical part ( ) thereof.

Growing community of inventors

Numazu, Japan

Masaaki Mitsuzono