Abstract: A casing has a processing chamber and a drying chamber defined therein by a partition mechanism. The processing chamber houses an impelling mechanism for impelling a mixed stream of glass beads and water toward a gear. First and second drying mechanisms are successively brought into the drying chamber by the partition mechanism. While the gear is being processed, i.e., peened, by the impelling mechanism in the processing chamber, a previously processed gear is dried in the drying chamber. Gears can quickly and efficiently be peened, washed, and dried successively in the casing.

Abstract: A multi-spindle machine tool having separately and vertically movable first and second spindle units which are mounted on a main body thereof movable toward and away from a workpiece. A first vertically movable table is supported by a pair of guide rails provided on a frontal surface of the main body opposing to the workpiece. The first vertically movable table can be ascended and descended by a first actuator. A second vertically movable table is supported by a pair of guide rails provided on a frontal surface of the first vertically movable table opposing to the workpiece. The second vertically movable table can be ascended and descended by a second actuator. The first and second spindle units are fixed onto the first and second vertically movable tables respectively. Thus, the area of the first vertically movable table to be supported by the main body can be set to a relatively large value and the rigidity of the first vertically movable table can be kept effectively.

Abstract: A rotary transfer system includes an attitude converting station for automatically changing the attitude of a pallet with a workpiece supported thereon into a predetermined attitude, at least two machining stations for machining the workpiece with machine tools, and a feeder for feeding the pallet along an arcuate feed path from the attitude converting station successively to the machining stations. The annular feed path has a pair of upper and lower arcuate movable rails disposed in each of the attitude converting station and the machining stations, and a pair of upper and lower arcuate fixed rails aligned with the movable rails.

Abstract: A drilling machine tool is disclosed having a machine tool body with a movable frame which is movable in the three axial directions X, Y and Z, of a rectangular coordinate system.