Hexagon Metrology S.p.a.

Brown & Sharpe Dea, S.p.a.

Domenico Russo

Domenico Sola

Michele Verdi

Giampiero Guasco

A measuring machine includes a mobile unit to move a measurement sensor in a measurement volume. The mobile unit includes at least one member mobile along an axis under the thrust of driving means and being subjected to dynamic deformations. A laser sensor is provided with a laser emitter fixed to a first portion of the mobile member and a target fixed to a second portion of the mobile member and designed to receive a laser beam generated by the emitter. Means are provided for compensating for measurement errors of the machine resulting from the dynamic deformations of the mobile unit and in response to displacement of a point of incidence of the laser beam on the target with respect to a reference position in undeformed conditions, the displacement of the point resulting from the relative displacement of the first and second portions of the mobile member.

Compensation of measurement errors due to dynamic deformations in a coordinate measuring machine

Measuring machine

An assembly for connecting a measuring tool to a measuring head moved by a measuring robot and having an output member rotating at least about one axis; the assembly having three supports located peripherally with respect to the axis and defining an isostatic constraint between the output member and a connecting portion for connecting the tool to the head; the assembly having releasable locking means interposed between the connecting portion of the tool and the output member; and the releasable locking means having engaging means located substantially along the axis, and a pneumatic actuating member cooperating with and for controlling release of the engaging means.

Assembly for connecting a measuring tool to a measuring head moved by a measuring robot

An assembly for connecting a measuring head to a measuring robot, the assembly having a flange integral with a supporting member of the measuring robot; isostatic supporting elements interposed between the measuring head and the flange; and a rotary ring nut carried by the flange and movable between an angular position permitting insertion of the head, and an angular position locking the head; the ring nut having elastic elements generating a preload on the isostatic supporting elements; and the isostatic supporting elements defining respective switches of an electric circuit forming part of a safety system for detecting shock on the head.

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Moncalieri, Italy

Domenico Russo