Measuring and testing – Rotor unbalance – Tool and adjunct
Patent
1989-02-06
1990-04-24
Williams, Hezron E.
Measuring and testing
Rotor unbalance
Tool and adjunct
269 481, G01M 0102
Patent
active
049189867
ABSTRACT:
A quick-clamping fixture for centering and clamping vehicle wheels on the spindle of a balancing machine, having a flange affixed to the spindle against which the cylindrical opening in the center section of a vehicle wheel is seated. A spring loaded conical fixture fits into the center opening of the wheel, and biases the conical fixture in the direction of said opening. The conical fixture is configured like a two part clamping collet the outer part having an external cylindrical surface for insertion into the centering opening of the vehicle wheel. One part of the clamping collet has a contact surface engaged by the spring, and the other has a contact surface for abutting a counterbearing. Precision centering takes place at the cylindrical inner surface of the wheel center section when the outer part of the collet expands as its conical surface slides against the complementary conical surface of the inner part. There are no centering errors due to the presence of play arising from mechanical tolerances.
REFERENCES:
patent: 3761008 (1973-09-01), Goulder
patent: 4118989 (1978-10-01), Wood
patent: 4354386 (1982-10-01), Newton
Bell Robert P.
Williams Hezron E.
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