Gear cutting – milling – or planing – Planing – With regulation of operation by templet – card – or other...
Patent
1980-01-08
1982-03-30
Briggs, William R.
Gear cutting, milling, or planing
Planing
With regulation of operation by templet, card, or other...
409 97, 409104, 409289, B23C 116
Patent
active
043221912
ABSTRACT:
Apparatus for making the finishing cut on the internal outline of a rough cut female die has two carriages one sliding in one direction upon the other, and the other carriage sliding upon a base at right angles to the first. A male punch comprising a template of the outline to which the die is to be finish cut is mounted on one carriage and the die or workpiece is mounted in an indexing work holder on the other carriage. The template engages a tracer finger fixed relative to the base and to a hacksaw blade which finish cuts the die or workpiece by strokes with the plane of the blade perpendicular to the die surface being cut. The tracer and blade are in common planes to which one carriage moves perpendicularly and the other parallel. The cutter blade and tracer respectively engage the die or workpiece and punch or template in the same direction so that cutting action urges the template and tracer into engagement. Preferably the tracer is supported on a hinged mount which can swing the template 180 degrees into opposition to the workpiece, so that the die or workpiece can be adjusted in its work holder until registered with the punch or template. A linear drive for one of the carriages is used for moving the workpiece carriage for cutting along linear portions of the die/workpiece, a linear portion of the template simultaneously moving along the tracer so as to urge the template and both carriages in a second direction normal to the first to the extent that the template deviates from linearity.
For cutting arcuate workpiece surfaces the template and workpiece are rotatably mounted on their respective carriages and turned by a rotary drive. An adjustable eccentric coupled between the rotary drive and workpiece carriage translates the workpiece carriage during rotation to compensate for the displacement of the workpiece rotational axis from the axis of curvature of the arcuate surface being cut.
REFERENCES:
patent: 918889 (1909-04-01), Morgan
patent: 1607895 (1926-11-01), Karr
patent: 2182331 (1939-12-01), Atkins
patent: 2902905 (1959-09-01), Meyer
patent: 2997926 (1961-08-01), Veryser
patent: 3434386 (1969-03-01), Hobbs
patent: 3618464 (1971-11-01), Michaud
patent: 3838623 (1974-10-01), Schell
patent: 3861275 (1975-01-01), Mueller
Briggs William R.
Grover James H.
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