Apparatus for chamfering planar plate

Details Apparatus for chamfering planar plate Apparatus for chamfering planar plate

1989-01-03

1990-12-11

Bishop, Steven C.

Gear cutting, milling, or planing

Milling

Means to trim edge

83869, 409303, B23C 312

Patent

active

049765736

ABSTRACT:
An apparatus for chamfering the outer edges of stacked printed circuit boards comprises a detecting device for detecting the boundary between two adjacent boards, and a chamfering tool positionable adjacent to the opposed outer edges of respective ones of the two adjacent boards in response to detection of the boundary and movable along the board outer edges to simultaneously chamfer both outer edges. The chamfering tool successively chamfers pairs of opposed outer edges in the upward direction on one side of the stack, and then the stack is turned so that the chamfering tool chamfers the outer edges on a different side of the stack printed circuit boards.

REFERENCES:
patent: 2703511 (1955-03-01), Griner
patent: 3749625 (1973-07-01), Berg
patent: 4462147 (1984-07-01), Herb et al.
patent: 4643237 (1987-02-01), Rosa
patent: 4718202 (1988-01-01), Worsham

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