Burr removal apparatus

Details Burr removal apparatus Burr removal apparatus

2006-08-29

2006-08-29

Wilson, Lee D. (Department: 3723)

Abrading

Abrading process

Hollow work

C451S051000, C451S065000, C451S107000

Reexamination Certificate

active

07097543

ABSTRACT:
Apparatus for removing a burr from an aperture in a workpiece, using a rotating deburring tool having a flexible or partly flexible shaft, an abrasive mechanism that rotates on the shaft and a collar that protects the workpiece from abrasion when the abrasive mechanism is being positioned for deburring. Optionally, the shaft and abrasive mechanism move laterally as they rotate. Optionally, a shaft holder includes a protective surrounding sleeve to catch or deflect any fragment of the shaft holder that might fly off. Optionally, the shaft and the workpiece rotate independently of each other. Two or more different abrasive mechanisms can be simultaneously attached to the shaft. The cross-sectional shape of the abrasive mechanism may be curvilinear and/or polygonal, depending upon shape of the workpiece surface. Optionally, a shaft restrictor receives the shaft and limits lateral motion of the rotating shaft. The shaft optionally includes a rotatable mass that provides additional rotational inertia after the shaft is initially spun up.

REFERENCES:
patent: 3871139 (1975-03-01), Rands
patent: 4136487 (1979-01-01), Khokhulin et al.
patent: 4343577 (1982-08-01), Purdon
patent: 4993196 (1991-02-01), Kobayashi et al.
patent: 5177904 (1993-01-01), Nagel et al.
patent: 5384983 (1995-01-01), Siggelin
patent: 5482498 (1996-01-01), Higashikawa
patent: 5795217 (1998-08-01), LaPlante et al.
patent: 5899796 (1999-05-01), Kamiyama et al.
patent: 6569177 (2003-05-01), Dillard et al.

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