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Patent Searching and Data


Title:
DEVICE AND METHOD FOR POLISHING CIRCULAR MEMBER, COLUMNAR OR CYLINDRICAL MEMBER AND MATERIAL TO BE ROLLED
Document Type and Number:
Japanese Patent JPH07266215
Kind Code:
A
Abstract:

PURPOSE: To improve the trouble such as looseness and vibration of a polishing device and lowering of the machining accuracy, and to improve the circularity of a circular member by providing a flexible material, which is pushed to abut on the circumferential surface of a columnar or a cylindrical material to be polished.

CONSTITUTION: Both ends of a ceramic roll 1 are respectively formed with projecting parts 5, and a SUS pipe as a buffer 4 is wound in the coil spring shape, which is previously matched with the diameter of the projecting part 5, and a recessed part a little smaller than the winding diameter of the SUS pipe, a center hole 3 and a through-hole 7 are provided, and a metal cap 2 is fitted from over the SUS pipe for fixation. At the time of grinding the ceramic roll 1, after machining the ceramic roll 1 at a predetermined dimension by the both center pushing using the center hole 3, finish polishing is performed. Diamond abrasive group is used for grinding and polishing. Since the galling and the abrasion at the center pushing part is eliminated by the metal cap 2, the accurate polishing, for example, at 1μm or less of circularity and at 5μm or less of cylindricity can be performed.


Inventors:
OKOCHI NORIHIKO
KAWAHIGASHI TAMITO
HIRAGA MAKOTO
Application Number:
JP1994000062413
Publication Date:
October 17, 1995
Filing Date:
March 31, 1994
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
B24B29/00; B21B28/02; C22C38/00; (IPC1-7): B24B29/00; B21B28/02; C22C38/00
Attorney, Agent or Firm:
小川 勝男