| 摘要 |
The device for positioning a spherical component during measurement of form errors includes a platform (1), pivotally mounted on an aligning ring (18), and a lifting mechanism, fixed to the platform (1) and coupled to a gripping mechanism (5), equipped with a pair of jaws (9, 10), one of which (10) has a rotating mechanism (11) for positioning the spherical component (7) by rotating it about a predetermined angle, and the spherical component (7) is placed on a support (3) mounted on an aligning pin (15), fixed in the aligning ring (18). The rotating mechanism (11) includes a pawl module (12), which cooperates with pitched positioning grooves (13) on the face of an angle-adjusting ring (14), with the pitch of the grooves (13) being, preferably, 30° or 22.5°. The support (3) possesses three forked claws (3a) with flat inner surfaces circumscribed about a conical surface. |
