Vertical type of double disc surface grinding machine for a...

Details Vertical type of double disc surface grinding machine for a... Vertical type of double disc surface grinding machine for a...

2005-08-23

2005-08-23

Ackun, Jr., Jacob K. (Department: 3723)

Abrading

Machine

Rotary tool

C451S332000

Reexamination Certificate

active

06932685

ABSTRACT:
A vertical type of double disc surface grinding machine of the present invention comprises a clamp device which can clamps and holds a work like a brake disc at a correct clamping position under a stable state even when a configuration of a work upper surface is complicated. This machine is equipped with a pair of upper and lower grinding wheels, a work holding jig which is self rotatable, and said clamp device. The clamp device is equipped with a clamp unit freely rotatable through a bearing onto a clamp rod of an elevator actuator. The clamp unit is equipped with a steel ball contacting with a central concave portion of a work upper surface.

REFERENCES:
patent: 4760669 (1988-08-01), Maccaferri et al.
patent: 5133155 (1992-07-01), Schwar
patent: 6501636 (2002-12-01), Savas et al.
patent: 6726525 (2004-04-01), Kato et al.
patent: 61-152359 (1996-07-01), None
patent: 10-217080 (1998-08-01), None

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