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Title: Coordinate measuring machine test standard apparatus and method

Abstract

A coordinate measuring machine test standard apparatus and method which iudes a rotary spindle having an upper phase plate and an axis of rotation, a kinematic ball mount attached to the phase plate concentric with the axis of rotation of the phase plate, a groove mounted at the circumference of the phase plate, and an arm assembly which rests in the groove. The arm assembly has a small sphere at one end and a large sphere at the other end. The small sphere may be a coordinate measuring machine probe tip and may have variable diameters. The large sphere is secured in the kinematic ball mount and the arm is held in the groove. The kinematic ball mount includes at least three mounting spheres and the groove is an angular locating groove including at least two locking spheres. The arm may have a hollow inner core and an outer layer. The rotary spindle may be a ratio reducer. The device is used to evaluate the measuring performance of a coordinate measuring machine for periodic recertification, including 2 and 3 dimensional accuracy, squareness, straightness, and angular accuracy.

Inventors:
 [1]
  1. (Louisville, CO)
Issue Date:
Research Org.:
EG & G INC
Sponsoring Org.:
USDOE
OSTI Identifier:
869468
Patent Number(s):
5341574
Application Number:
08/083,229
Assignee:
United States of America as represented by Department of Energy (Washington, DC) RFFO
DOE Contract Number:  
AC04-90DP62349
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
coordinate; measuring; machine; standard; apparatus; method; iudes; rotary; spindle; upper; phase; plate; axis; rotation; kinematic; ball; mount; attached; concentric; groove; mounted; circumference; arm; assembly; sphere; probe; tip; variable; diameters; secured; held; mounting; spheres; angular; locating; including; locking; hollow; inner; core; outer; layer; ratio; reducer; device; evaluate; performance; periodic; recertification; dimensional; accuracy; squareness; straightness; inner core; measuring machine; coordinate measuring; outer layer; probe tip; phase plate; ball mount; arm assembly; standard apparatus; dimensional accuracy; variable diameter; plate concentric; /33/73/

Citation Formats

Bieg, Lothar F. Coordinate measuring machine test standard apparatus and method. United States: N. p., 1994. Web.
Bieg, Lothar F. Coordinate measuring machine test standard apparatus and method. United States.
Bieg, Lothar F. Tue . "Coordinate measuring machine test standard apparatus and method". United States. https://www.osti.gov/servlets/purl/869468.
@article{osti_869468,
title = {Coordinate measuring machine test standard apparatus and method},
author = {Bieg, Lothar F.},
abstractNote = {A coordinate measuring machine test standard apparatus and method which iudes a rotary spindle having an upper phase plate and an axis of rotation, a kinematic ball mount attached to the phase plate concentric with the axis of rotation of the phase plate, a groove mounted at the circumference of the phase plate, and an arm assembly which rests in the groove. The arm assembly has a small sphere at one end and a large sphere at the other end. The small sphere may be a coordinate measuring machine probe tip and may have variable diameters. The large sphere is secured in the kinematic ball mount and the arm is held in the groove. The kinematic ball mount includes at least three mounting spheres and the groove is an angular locating groove including at least two locking spheres. The arm may have a hollow inner core and an outer layer. The rotary spindle may be a ratio reducer. The device is used to evaluate the measuring performance of a coordinate measuring machine for periodic recertification, including 2 and 3 dimensional accuracy, squareness, straightness, and angular accuracy.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {8}
}

Patent:

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