Method and apparatus for processing a side bearing component for

Details Method and apparatus for processing a side bearing component for Method and apparatus for processing a side bearing component for

1995-12-26

1998-02-17

Schwartz, Larry I.

Cutting by use of rotating axially moving tool

Machine including plural tools

Coaxial tools

408 95, 29 33R, B23B 3922

Patent

active

057185433

ABSTRACT:
The present invention relates to an apparatus for consistently machining a side bearing component for railroad cars such that the components produced all have similar performance characteristics. The preferred method of the present invention includes the steps of: arranging a rectangular shaped spring member within a fixture such that a top surface of the spring member is disposed in a predetermined position relative to a centerline of a rotating tool capable of making a bore of predetermined diameter in said spring member; moving first and second arms along a predetermined path of movement inwardly toward and into contact with opposite sides of the spring member to sideways position the spring member in a predetermined relation relative to the centerline of the tool; holding the spring member in place under a predetermined and constant pressure after the spring member is positioned relative to the tool; and moving at least one of the fixture and the tool along a predetermined path of travel such that the bore is provided in a predetermined location on the spring member to provide the spring member with predetermined performance characteristics.

REFERENCES:
patent: 1848915 (1932-03-01), Trosch
patent: 2302878 (1942-11-01), Muhl et al.
patent: 3712691 (1973-01-01), Cope
patent: 4215958 (1980-08-01), Jagers
patent: 4712487 (1987-12-01), Carlson

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