ADJUSTABLE MANDREL

摘要

PROBLEM TO BE SOLVED: To provide an adjustable mandrel wherein a sufficient adjustable range is secured by a simple constitution. SOLUTION: Three eccentric rollers 5 having positioning surfaces 5b to position an inner peripheral surface of a workpiece are arranged between a base plate 1 and a top plate 3. The respective eccentric rollers 5 are rotatable on their eccentric shafts 5a parallel to each other. The positions of the positioning surfaces 5b are adjustable by rotating the eccentric rollers 5 on the eccentric shafts 5a. COPYRIGHT: (C)2004,JPO