Free form machining tool

Details Free form machining tool Free form machining tool

1997-11-26

2000-05-02

Scherbel, David A.

Abrading

Machine

Rotary tool

451295, B24B 300

Patent

active

060566299

ABSTRACT:
In a free form machining tool 10 for machining a surface to be machined while bringing the lower end into contact with the surface to be machined by a rotation around an axis z, the tool comprises a spherical tool 12 having a spherical surface machining section 13 on the lower portion, and a bearing 14 for supporting the spherical tool by an axis a of rotation which passes through the center .largecircle. of the spherical surface and is different from the axis. The tool also includes rotating means 16 (for example, a turbine) for rotating the spherical tool around the axis of rotation. Thus, even if the spherical surface machining section comes into contact with the surface to be machined on the axis (radius: 0) of the tool, the spherical surface machining section is rotated around the axis a of rotation which is different from the axis z. Therefore, a peripheral speed of the axis is not zero (0). It is possible to efficiently work a freely curved surface with high accuracy and high quality by the use of a conventional three-axial NC machining apparatus.

REFERENCES:
patent: 1945240 (1934-01-01), Tupica
patent: 2025260 (1935-12-01), Zublin
patent: 2336336 (1943-12-01), Zublin
patent: 2732671 (1956-01-01), McFadden
patent: 4096917 (1978-06-01), Harris
patent: 4203496 (1980-05-01), Bakwe, III et al.

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