Articulating measuring arm with laser scanner
AssigneeHexagon Metrology, Inc.
InventorPaul Ferrari
Life of this patent
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Abstract
A coordinate measurement device comprises an articulated arm having a first end, a second end, and a plurality of jointed arm segments therebetween. Each arm segment defines at least one axis of rotation. A laser scanner assembly is coupled to the second end of the arm and is rotatable about a last axis of rotation of the articulated arm. The laser scanner assembly comprises a laser and an image sensor. The laser is positioned on an opposite side of the last axis of rotation from the image sensor.
Claims24
An optical position acquisition member comprising:
- a housing comprising a mounting portion configured to mount to a CMM about a last axis of rotation of the CMM;
- a light source mounted on a plate;
- and
- multiple optical sensors mounted to the housing such that the sensors are counterbalanced about the last axis of rotation.
An optical position acquisition member comprising:
- a housing comprising a mounting portion configured to mount to a CMM about a last axis of rotation of the CMM;
- a light source mounted on a plate;
- and
- multiple optical sensors mounted to the housing such that the sensors are spaced around the last axis of rotation.
A coordinate measurement machine comprising:
- an articulated arm comprising:
- at least a first and a second articulated arm member, the second articulated arm member having an axial centerline;
- and
- a plurality of encoders configured to measure a position of the first and second articulated arm members;
- a measuring probe couplable with an end of the second articulated arm, the measuring probe comprising:
- a main body;
- a handle coupled with the main body;
- a laser scanner coupled with the main body;
- and
- a contact sensitive measuring probe having an end portion;
- wherein:
- the measuring probe is configured to rotate about a rotational axis that is in the same direction as an axial centerline of the second articulated arm member;
- and
- an end of the end portion of the contact sensitive measuring probe is within 285 mm of the rotational axis.
A coordinate acquisition member comprising:
- a mounting portion;
- a housing;
- an optical sensor at least partially within the housing;
- a light source coupled with the mounting portion;
- a contact sensitive member;
- and
- a handle;
- wherein:
- the coordinate acquisition member is configured to be coupled with a CMM;
- and
- at least the housing, the optical sensor, the light source, and the contact sensitive member are arranged on the coordinate acquisition member such that a center of gravity of the coordinate acquisition member lies along a last axis of rotation of the coordinate acquisition member.
Dependencies are inferred from the claim text.