Gear cutting – milling – or planing – Planing – Means for cutting groove
Patent
1999-01-08
2000-08-01
Gerrity, Stephen F.
Gear cutting, milling, or planing
Planing
Means for cutting groove
409304, B23D 502
Patent
active
060957301
ABSTRACT:
An inexpensive machine of small size is exclusively used for processing a key groove, requiring no skill. It is so constructed that a voltage is applied to an insulated work table through lead wires. A piece to be processed is reciprocated in left- and rightward directions. A center position of processing is calculated, based on digital displays of conduction signal positions, which left and right contact positions of a cutting tool inserted into a throughhole, in an inner wall of which the key groove should be formed, with the inner wall and a position of processing is set for the cutting tool by means of a scale, which position is fixed by using an eccentric lever. The work table is moved automatically intermittently with a cutting pitch set, linked with an air cylinder. A cutting distance for the key groove is set by a separation distance s between two magnetic sensors and cutting of the key groove K having a depth d is effected by moving the work table intermittently backward in a region, at two extremities of which the two magnetic sensors respond, respectively, to a magnet base, which is formed in one body with the work table.
REFERENCES:
patent: 978073 (1910-12-01), Stowell
patent: 1745573 (1930-02-01), Harten
patent: 2118515 (1938-05-01), Larsen
patent: 2551359 (1951-05-01), Bannow et al.
patent: 2868090 (1959-01-01), McCullough
patent: 4778316 (1988-10-01), Strait
patent: 5399049 (1995-03-01), Abe et al.
patent: 5876163 (1999-03-01), Nemeth et al.
Asa Electronic Industry Co., Ltd.
Gerrity Stephen F.
Wilson Adrian M.
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