The invention relates to a probing means for coordinate measuring machines, with a probe tip having a recess and a shaft penetrating with a shoulder into the recess. According to the invention, the recess tapers towards the interior of the probe tip and the shaft has a construction complementary thereto.

A method and system for measuring a turbine shape is provided in which an appropriate measurement accuracy can be achieved that is sufficient to prevent a failure to recognize features of shape of a measurement object, with extension of a measurement time suppressed. In a turbine including casings, recesses and protrusions on flange surfaces of the casings are measured at measurement intervals M set on the basis of the entire length L of flange portions in an axial direction, the number of bolts N joining the flange portions, and intervals between the bolts in the axial direction of the flange portions.

A method and system for measuring a turbine shape is provided in which an appropriate measurement accuracy can be achieved that is sufficient to prevent a failure to recognize features of shape of a measurement object, with extension of a measurement time suppressed. In a turbine including casings, recesses and protrusions on flange surfaces of the casings are measured at measurement intervals M set on the basis of the entire length L of flange portions in an axial direction, the number of bolts N joining the flange portions, and intervals between the bolts in the axial direction of the flange portions.

A position measurement method to pleasure a position of an object in a machine tool includes a tool sensor position acquisition stage, a reference block position acquisition stage, a relative position calculation stage, a reference tool position acquisition stage, a position measurement sensor measurement stage, a length compensation value calculation stage, and a position measurement stage. In the position measurement stage, the measurement position of the object is compensated using a length direction compensation value of a position measurement sensor calculated in the length compensation value calculation stage. The object is measured by the position measurement sensor installed to a main spindle.

A position measurement method to pleasure a position of an object in a machine tool includes a tool sensor position acquisition stage, a reference block position acquisition stage, a relative position calculation stage, a reference tool position acquisition stage, a position measurement sensor measurement stage, a length compensation value calculation stage, and a position measurement stage. In the position measurement stage, the measurement position of the object is compensated using a length direction compensation value of a position measurement sensor calculated in the length compensation value calculation stage. The object is measured by the position measurement sensor installed to a main spindle.

A measuring probe includes: a stylus having a contact part to be brought into contact with an object to be measured; a probe housing capable of supporting the stylus on an axial center; and a detection element capable of detecting a movement of the contact part. The measuring probe further includes: two supporting members disposed in an axial direction of the probe housing, the supporting member allowing for an attitude change of the stylus; and a coupling shaft for coupling the two supporting members together. The detection element is disposed in one of the two supporting members that is farthest away from a rotational center position of rotation generated in the stylus when a measuring force is applied to the contact part from a direction perpendicular to the axial direction, to detect a strain amount of the one of the two supporting members.

A measuring probe includes: a stylus having a contact part to be brought into contact with an object to be measured; a probe housing capable of supporting the stylus on an axial center; and a detection element capable of detecting a movement of the contact part. The measuring probe further includes: two supporting members disposed in an axial direction of the probe housing, the supporting member allowing for an attitude change of the stylus; and a coupling shaft for coupling the two supporting members together. The detection element is disposed in one of the two supporting members that is farthest away from a rotational center position of rotation generated in the stylus when a measuring force is applied to the contact part from a direction perpendicular to the axial direction, to detect a strain amount of the one of the two supporting members.

A method of manufacturing an article, including using coordinate measuring machine both to obtain three-dimensional point coordinate measurements of first part of article in place and to position a second part of article in predetermined spatial relationship relative to first part in dependence upon measurements of first part. Predetermined spatial relationship is defined in more than three degrees of freedom. Positioning second part relative to first part includes controlling machine to move second part relative to first part in more than three degrees of freedom. Machine is controlled to hold first and second parts in predetermined spatial relationship while performing an operation to fix both parts in predetermined spatial relationship. Second part is not in direct contact with any other part of article when first and second parts are in predetermined spatial relationship, at least not in a manner which would interfere with or influence or affect predetermined spatial relationship.

A method of manufacturing an article, including using coordinate measuring machine both to obtain three-dimensional point coordinate measurements of first part of article in place and to position a second part of article in predetermined spatial relationship relative to first part in dependence upon measurements of first part. Predetermined spatial relationship is defined in more than three degrees of freedom. Positioning second part relative to first part includes controlling machine to move second part relative to first part in more than three degrees of freedom. Machine is controlled to hold first and second parts in predetermined spatial relationship while performing an operation to fix both parts in predetermined spatial relationship. Second part is not in direct contact with any other part of article when first and second parts are in predetermined spatial relationship, at least not in a manner which would interfere with or influence or affect predetermined spatial relationship.

A probe head of a three-dimensional coordinate measuring device according to an embodiment of the present invention includes a measurer, a first and second diaphragm, a first oscillator, and a second oscillator. The measurer extends in a first direction. The first and second diaphragms are provided at two different positions on the measurer, at a first position and a second position, respectively, and support the measurer such that the measurer is capable of displacement in a first direction. The first oscillator causes the measurer to oscillate along the first direction. The second oscillator causes a predetermined portion of the measurer between the first and second diaphragms to oscillate along each of a second direction orthogonal to the first direction, and a third direction orthogonal to both the first and second directions.