Method of compensating measurement errors of a measuring machine deriving from the deformations of the machine bed caused by the load exerted by the mobile unit of the machine on the machine bed, and measuring machine operating according to said method

摘要

A method of compensating the measurement errors of a measuring machine deriving from the deformations of a machine bed of the machine caused by the load exerted by a mobile unit of the machine on said machine bed, said method being characterized by comprising a first acquisition step in which first data regarding the constraint conditions of a workpiece on the machine bed are acquired, a second acquisition step in which second data regarding the deformation of the machine bed as the position of the mobile unit of the machine varies are acquired, and a third calculation step in which correction values depending upon said first and second data are calculated.

主权项

1. A method of compensating the measurement errors of a measuring machine, the method comprising:
deriving deformations of a machine bed of the machine caused by a present load exerted by a mobile unit of the machine on said machine bed by acquiring first data representing constraint conditions of a workpiece on the machine bed wherein said constraint conditions comprise a position of said workpiece on said machine bed when the mobile unit is not moving; acquiring second data regarding the deformation of the machine bed as the position of the mobile unit of the machine varies; and calculating correction values depending upon said first and second data.