ABRASION METHOD OF NON-SPHERICAL SURFACE

PURPOSE:To obtain a good abrasion face by keeping a load applied to the abrasion face constant, always maintaining the work face horizontally, increasing the rotating speed of a work and the feed speed of an abrasive tool in inverse proportion to the radius, and abrading with the abrasive tool kept...

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Bibliographic Details
Main Authors NOTO KOUICHI, KAWAI TSUNEO
Format Patent
LanguageEnglish
Published 16.12.1982
Subjects
CONTACT LENSES
DRESSING OR CONDITIONING OF ABRADING SURFACES
FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
GRINDING
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
OPTICS
PERFORMING OPERATIONS
PHYSICS
POLISHING
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
TRANSPORTING
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Summary:PURPOSE:To obtain a good abrasion face by keeping a load applied to the abrasion face constant, always maintaining the work face horizontally, increasing the rotating speed of a work and the feed speed of an abrasive tool in inverse proportion to the radius, and abrading with the abrasive tool kept in hunting. CONSTITUTION:An abrasive head 1 provided with an abrasive tool 2 rotating around a vertical axis is moved by motors 11, 12 on a horizontal plane, and it is also pressed to a work 3 by an oil pressure cylinder 14 at a constant load. The work 3 such as a metal mold for a contact lens is rotated by a motor 6 and is also swayed by a motor 4 so that its contact face with the abrasive tool 2 is always kept horizontal. The rotating speed of the work 3 and the feed speed of the abrasive tool 2 are increased in inverse proportion to the radius of the work, which is abraded at a constant peripheral speed so as to draw spirals with an equal interval. In addition, the abrasive tool 2 is kept in hunting by the motors 11, 12 to prevent orange peel from occurring.
Bibliography:Application Number: JP19810089546