摘要:
A portable coordinate measurement machine comprises an articulated arm having jointed arm segments. At least one of the joined arm segments is comprised of a plurality of components being bonded to each other using adhesive. In addition, the jointed arm segments may include tapered and/or threaded ends.
摘要:
A portable coordinate measurement machine comprises an articulated arm having jointed arm segments. The arm includes modular bearing/encoder cartridges which are attached to each other at predetermined angles using dual socket joints. Each cartridge contains at least one, and preferably two preloaded bearing assemblies and an encoder, preferably optical encoder, all assembled in a cylindrical housing.
摘要:
A portable coordinate measurement machine comprises an articulated arm having a plurality of jointed arm segments. The arm segments include replaceable protective coverings and/or bumpers to limit high impact shock and abrasion as well as to provide an ergonomically and/or aesthetically pleasing gripping location.
摘要:
A method for improving the measurement accuracy of a portable coordinate measurement machine which comprises an articulated arm having jointed arm segments is presented. This method includes sensing deformation of a portion of the articulated arm when the arm is placed under a load, this deformation causing an error in the measurement made by the CMM, and correcting such error in response to the sensed deformation.
摘要:
An apparatus for providing feedback to the operator of a portable coordinate measurement machine which comprises an articulated arm having jointed arm segments is presented. The apparatus includes sensing deformation of a portion of the articulated arm when the arm is placed under a load, the deformation being an indication of the magnitude of the external force being applied to the arm, and providing feedback to the operator of the CMM in response to the sensed external forces.
摘要:
A portable coordinate measurement machine comprises an articulated arm having jointed arm segments. The arm includes joint assemblies which include at least one read head together with one or more (preferably five) sensors (preferably proximity sensors) in communication with a periodic pattern of a measurable characteristic, the pattern and read heads being positioned within the joint so as to be rotatable with respect to each other.
摘要:
A portable coordinate measurement machine comprises an articulated arm having jointed arm segments. The articulated arm includes an integrated, internal counter-balance in one of its hinge joints. This counter-balance utilizes a coil spring having relatively wide end rings and narrower internal rings machined from a metal cylinder. The spring further includes at least two posts for locking into the hinge structure of the arm as well as a spring adjustment mechanism.