Title:
POLISHING DEVICE USING MAGNETIC FLUID
Document Type and Number:
Japanese Patent JPH01135466
Kind Code:
A
Abstract:
PURPOSE:To improve the polishing efficiency by automatically keeping a constant working load during polishing by arranging a container filled with magnetic fluid under a driving jig and installing a mechanism for pressing the jig and the container by a constant load. CONSTITUTION:When the total weight B of a magnet 2, magnetic fluid 3, floating plate 4, container 5, and a basic board 6A is B, balance is generated with a weight 10 having the total weight B, and when the total weight of the weight 10 is B+W, the container 5 is slided upwardly together with the basic board 6A. Therefore, the container 5 and a driving jig 1 are always pressed each other by a constant weight W. The weight W is equal to the sum of the floating plate 4 and the buoyancy of a polished article 12, and forms the working load for the polished article 12. In this state, the polished article 12 is immersed into the magnetic fluid 3 containing abrasive grains in the container 5, and the driving jig 1 is operated, and the polished article 12 is polishing-worked by the working load W, pressed onto the driving surface of the driving jig 1.
Inventors:
KATO YASUSHI
UMEHARA TOKUJI
ADACHI SHIGERU
SATO SHIN
UMEHARA TOKUJI
ADACHI SHIGERU
SATO SHIN
Application Number:
JP28743987A
Publication Date:
May 29, 1989
Filing Date:
November 16, 1987
Export Citation:
Assignee:
JGC CORP
KATO YASUSHI
KATO YASUSHI
International Classes:
B24B31/112; B24B37/00; (IPC1-7): B24B31/112; B24B37/00
Attorney, Agent or Firm:
Shoji Aoma