Patent ID: 7316075
Filing Date: 2008-01-08
Classification: G01B

Abstract:
1. A coordinate measuring machine for the metrological determination of a measurement coordinate on a test object, comprising a table for mounting the test object, the table defining a first plane, a probe holder for receiving a measuring probe, a first bearing support having a first upper guide surface and a first vertical guide surface, on which a first carriage is mounted moveably in a first longitudinal direction, a second bearing support having a second upper guide surface and a second vertical guide surface, on which a second carriage is mounted moveably in a second longitudinal direction, and a first and a second beam, each of which being coupled to the probe holder, wherein the first beam extends parallel to the second bearing support and is arranged on the first carriage such that it can be moved longitudinally in the second direction, wherein the second beam extends parallel to the first bearing support and is arranged on the second carriage such that it can be moved longitudinally in the first direction, and wherein the first and second bearing supports each have a slot-shaped opening through which one of the beams projects, the slot-shaped openings defining a second plane, wherein the first carriage is mounted on the first bearing support via at least three first bearing points, which bear against the first vertical guide surface so as to define a first vertical bearing plane perpendicular to the first plane, wherein the second carriage is mounted on the second bearing support via at least three second bearing points, which bear against the second vertical guide surface so as to define a second vertical bearing plane perpendicular to the first plane, and wherein at least one of said first bearing points and at least one of said second bearing points lie on either side of the second plane.