Clamping and drilling device for a curved plate

Details Clamping and drilling device for a curved plate Clamping and drilling device for a curved plate

1993-08-16

1994-07-05

Briggs, William

Metal working

Plural diverse manufacturing apparatus including means for...

With means to feed work intermittently from one tool station...

29564, 269266, 269909, 408 44, B23Q 306, B23B 3916

Patent

active

053255810

ABSTRACT:
The device includes a clamping assembly which has a stationary upright post with upper and lower casings coaxially mounted to the upright post, a threaded shaft to adjust a vertical height of the upper and lower casings, a drilling assembly which is adjacent to the clamping assembly and which has first and second drilling bits that respectively extends toward an axis of the upright post in a parallel manner and a worm mechanism for adjusting a vertical height between the two drilling bits and an index apparatus which can rotate the clamping assembly to a predetermined angle relative to the drilling assembly. The upper and lower casings have radially movable pieces with clamping members thereon. A synchronous moving unit moves the movable pieces relative to the upright post to define a distance which is equal to a radius of curvature of a curved plate that is to be clamped and drilled by the device.

REFERENCES:
patent: 2953069 (1960-09-01), Smith
patent: 3797957 (1974-03-01), Hoglund
patent: 3833312 (1974-09-01), Miles et al.
patent: 4033569 (1977-07-01), Dunn
patent: 4233893 (1980-11-01), Pringle
patent: 4454645 (1984-06-01), Schisser
patent: 5177849 (1993-01-01), Johnson

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