Metal deforming – By use of 'flying tool' engaging moving work – Including arcuately oscillating tool-face
Patent
1985-10-03
1987-03-24
Larson, Lowell A.
Metal deforming
By use of 'flying tool' engaging moving work
Including arcuately oscillating tool-face
291567R, B21K 124
Patent
active
046515518
ABSTRACT:
A die head for a roll imprinting machine for the imprinting of edges of grooves performed in a valve core for a rotary valve for use in a power steering gear, the die head supporting a circular cluster of radially disposed rolling die holders, each die holder carrying at an inner end an arcuate imprinting die and being mounted for partial rotation on a transversely extending axle, partial rotation of all said die holders being effected synchronously by action on each die holder at a position on the idle holder more remote from the inner end of the die holder than the position of the axle and a valve core locator arranged to locate and hold the valve core at the center of the cluster for roll imprinting by the imprinting dies in a synchronous relationship and apparatus for actuating the die head including a number of racks, one for each die holder, supported for reciprocating motion in engagement with sectors of gear teeth formed on the die holders, a work spindle extending along the central axis of the cluster and, a valve core holder, the racks, the work spindle and the valve core holder being reciprocated in coordinated motions according to a predetermined relationship.
REFERENCES:
patent: 685417 (1901-10-01), Williams
patent: 2680391 (1954-06-01), Kaiser
patent: 2781678 (1957-02-01), Nichols et al.
patent: 3763688 (1973-10-01), Cuq
patent: 3987657 (1976-10-01), Properzi
patent: 4100785 (1978-07-01), Bishop
Bishop Arthur E.
Roeske Klaus J.
Bishop Arthur E.
Larson Lowell A.
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