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AssigneeNissin Unyu Kogyo Co., Ltd.
InventorsTadashi Aiura, Katsuhiko Inoue, Toshihiko Sasaki, Kazuo Akagi, Koji Takahashi
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There is provided an electrolytic integrated polishing apparatus which enables high precision polishing of the internal surface of a long sized cylindrical workpiece such as a metallic tube. The apparatus includes a work supporting unit for disposing the cylindrical workpiece, so that the axial center of the cylindrical portion is aligned with the vertical direction, a rotation shaft supported downward along the vertical direction and free-rotatably supported in an external tube which is freely movable along the vertical direction, a tool electrode including a grindstone directed to radial directions, attached to the tip of the rotation shaft, and a plastic tube wound around the external surface of the external tube for pressurization.
An electrolytic integrated polishing apparatus for polishing an internal surface of a cylindrical portion of a long sized cylindrical workpiece by integrating elution by electrolyte and abrasion by a grindstone attached to a tool electrode inserted into the cylindrical portion, said apparatus comprising a work supporting unit for disposing the long sized cylindrical workpiece so that the axial center of its cylindrical portion is aligned with the vertical direction, a rotation shaft inserted into the cylindrical portion of said long sized cylindrical workpiece, a coaxial external tube supported downward along the vertical direction to free-rotatably support said rotation shaft and inserted together with said rotation shaft into the cylindrical portion of said long sized cylindrical workpiece, a tool electrode attached to the tip of said rotation shaft, and a transportation unit for moving said rotation shaft and/or the work supporting unit along the axial direction.
Dependencies are inferred from the claim text.