Abrasive device that maintains normal line of contact with curve

Details Abrasive device that maintains normal line of contact with curve Abrasive device that maintains normal line of contact with curve

1997-06-04

1999-04-20

Eley, Timothy V.

Abrading

Precision device or process - or with condition responsive...

Computer controlled

451 11, 451 57, 451 42, 451127, 451137, 451138, 451150, 451164, 451166, 451215, 451216, 451226, 451393, 451495, 451505, 451504, 451913, B24B 4900, B24B 100, B24B 702

Patent

active

058953116

ABSTRACT:
An abrasive apparatus adopted to abrade a curved surface of workpiece includes: an abrading head including an abrading tip having a substantially spherical outer surface and a rotating shaft supporting the abrading tip, the abrading head being positioned to face the curved surface; a thrust moving mechanism for relatively moving the abrading head and the curved surface; a lateral moving mechanism for relatively moving the abrading head and the curved surface; a pivotal moving mechanism for relatively moving the abrading head and the curved surface pivotally around a center point; and a controller for controlling the abrading head, the thrust moving mechanism, the lateral moving mechanism and the pivotal moving mechanism synchronously so that the abrading tip contacts and presses the curved surface at any point thereon with a substantially constant pressure in a direction consistent with a normal line thereat. An angle adjuster supporting the abrading head for adjusting an angle of the rotating shaft against the curved surface is also disclosed.

REFERENCES:
patent: 3050909 (1962-08-01), Rawstron
patent: 4735019 (1988-04-01), Wiederkehr
patent: 4936052 (1990-06-01), Nagase et al.
patent: 4987700 (1991-01-01), Westerman et al.
patent: 5255474 (1993-10-01), Gawa et al.
patent: 5681209 (1997-10-01), Naumann et al.

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