Exchanging device

Geometrical instruments – Gauge – Coordinate movable probe or machine

Reexamination Certificate

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Details

C033S559000, C403S328000, C403S324000, C403S325000, C403SDIG010, C279S133000, C279S137000, C279S128000, C279S125000, C279S157000

Reexamination Certificate

active

07543394

ABSTRACT:
An exchanging device is for exchangeably holding a sensor, probe element or tool on a machine or on a machine part or a rotation-pivot unit on a machine or a machine part, preferably, a coordinate measuring apparatus. The exchanging device includes a take-up holder having a first bearing part and a counter piece (22) having a second bearing part corresponding to the first bearing part. A releasable clamping unit (42), for example, a magnetic clamping unit, is provided with which a clamping force is generated between the first and second bearing parts when the counter piece is accommodated on the take-up holder. A locking device having a first locking element (29) is provided on the take-up holder and a counter piece corresponding to the locking element (29) of the take-up holder is provided on the counter piece (22), for example, in the form of a slider (30). With the locking device, the counter piece can be mechanically coupled to the take-up holder in the state when it is taken up by the take-up holder. The locking element (29) includes a separation interface (31) and a securing element (33) is provided in the form of a line pretensioned by a compression spring (35) via which the separation at the separation interface (31) is limited to a predetermined distance such that, in the case of a collision, no forces which are too great can be applied to the components in that the locking element (29) is lifted out of its seat at the separation interface (31). The securing element ensures that, in the case of a collision, the counter piece (22) remains connected to the take-up holder (21) and a component, which is carried by the counter piece, does not drop off.

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patent: 2005/0014620 (2005-01-01), McMurtry et al.
patent: 38 27 656 (1989-08-01), None

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