Positioning device

A positioning apparatus, wherein

• a reference member (R) is provided with a support surface (S) for supporting a movable member (M) and a central pillar (21) projected from the support surface (S) toward a leading end,
• a positioning hole (12) defined by a tapered hole is opened in a surface (T) to be supported of the movable member (M),
• a intermediate member (22) is arranged between the central pillar (21) and the positioning hole (12),
• the intermediate member (22) comprises a collet-type shuttle member (23) having on an outer periphery a tapered surface (28), which narrows toward the leading end, and a tapered cylinder (26), which is attached to the outer periphery of the shuttle member (23) and makes a tapering engagement with the positioning hole (12),
• the collet-type shuttle member (23) is supported on the central pillar (21) axially movably, and the inner peripheral surface of the tapered cylinder (26) makes a tapering engagement with the tapered surface (28) on the outer periphery of the shuttle member (23), and an advancing means (24) is provided so as to push the shuttle member (23) in such a direction as to tighten the tapering engagement.

A positioning apparatus, wherein

• a reference member (R) is provided with a support surface (S) for supporting a movable member (M) and a central pillar (21) projected from the support surface (S) toward a leading end,
• a positioning hole (12) defined by a straight hole is opened in a surface (T) to be supported of the movable member (M),
• an intermediate member (22) is arranged between the central pillar (21) and the positioning hole (12),
• the intermediate member (22) comprises a collet-type shuttle member (23) having on an inner periphery a tapered surface (28), which narrows toward the leading end, and a tapered cylinder (26), which is attached to the inner periphery of the shuttle member (23) and makes a tapering engagement with the central pillar (21),
• the collet-type shuttle member (23) is supported in the positioning hole (12) axially movably, and an outer peripheral surface of the tapered cylinder (26) makes a tapering engagement with the tapered surface (28) on the inner periphery of the shuttle member (23), and an advancing means (24) is provided so as to push the shuttle member (23) in such a direction as to tighten the tapering engagement.