Centering template for concentric grinding

Details Centering template for concentric grinding Centering template for concentric grinding

1997-07-17

1999-07-06

Scherbel, David A.

Abrading

Machine

Rotary tool

451365, 451398, 451439, 279133, 82170, B23B 3300

Patent

active

059190833

ABSTRACT:
There is disclosed a self-centering template useful for centering cylindrical bodies on their axes in rotating machines such as a concentric grinder. The centering templates of the invention are generically cup-shaped plates, having an end disc with a dependent, preferably integral, cylindrical wall. The disc has a central aperture which is intersected by a radial slot extending from the periphery of the disc. The inside surface of the annular wall is tapered from a maximum thickness adjacent the disc. In use, templates are placed over the opposite ends of a cropped silicon ingot and the resultant assembly is mounted in the concentric grinding machine, with the central aperture of the template disc guiding the head stock and tail stock chuck into centric engagement with the ends of the ingot. After the ingot is clamped in the machine, the templates are removed by passing the radial slots of the templates past the machine shafts.

REFERENCES:
patent: 3099173 (1963-07-01), Palawsky et al.
patent: 3307251 (1967-03-01), Magyar
patent: 4702132 (1987-10-01), Grosse

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