| 摘要 |
PROBLEM TO BE SOLVED: To easily provide a surface plate for polishing and machining curvature faces of various parts. SOLUTION: A surface plate 30 is not attached to a polishing device 40 and is formed like a flat plate. A mounting part 32 is provided on a rear surface of the surface plate 30, is connected with a connection member 44 of the polishing device 40, and is pulled by a pulling mechanism. Pressing members 46A, 46B are provided on both sides of the connection member 44 in the polishing device 40. When a central part of the surface plate 30 receives tension stress through the connection member 44 by the pulling mechanism, each pressing member 46A, 46B regulates displacement of a peripheral fringe part of the surface plate 30 against the tension stress so that the surface plate 30 can be deformed like a curve and a polishing face 30A can be deformed like a recessed face having a fixed curvature. A curvature face of a projecting part of a magnetic head slider is polished by the polishing face 30A. |
