Work holding mechanism in surface grinding attachment

Abstract

Abstract PURPOSE:To dispense with any machining for a spherical surface as well as to aim at such smooth polishing as being excellent in followability to a swell on a polishing surface, by installing three links, which connect both holding and supporting parts of a work tiltably and make the extension of a shaft center pass through one point on a work surface. CONSTITUTION:A remote center compliance mechanism is formed by a link 33, and when a flange 32 is clamped, a pressing plate 34 and a blank 20 are tilted centering on the center C within a minute range. That is to say, in the minute range, since the link 33 tilts centering on one end 36, the other end 37 is displaced on a flat surface right- angled with the shaft center, therefore the center of rotational motion of the pressing plate 34 engaging the other end 37 is on a shaft center (a) and this center is produced as to three links 33 whereby the pressing plate tilts centering on a center (c) or an intersection point of the shaft center (a). And, a pin 44 installed in the pressing plate 34 is engaged with a longitudinal groove 41 installed in the flange 32, chekcing the rotation of the pressing plate 34. Therefore, in time of polishing, the pressing plate 34 and the blank 30 tilt centering on the center (c) according to a swell on a polishing surface, thus smooth polishing is performable without entailing any positional slip on the work surface due to the tilt.

Inventors

• 👤 Takemi Kamata
• 👤 鎌田　武美
• 👤 Tetsuya Yasuda
• 👤 哲也 安田

Bibliographic Details