Programming cam indexing mechanism

Details Programming cam indexing mechanism Programming cam indexing mechanism

1977-01-03

1978-08-01

Gerin, Leonard H.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74813C, 74813L, B23B 2924, B23Q 1700

Patent

active

041035690

ABSTRACT:
A programming cam indexing mechanism in which a rotatable programming cam, provided with a peripheral traction surface and a concentric inwardly facing track having one or more notches therein to define indexed programming positions, is rotatably driven by a capstan coupled with a drive shaft, the capstan being supported by a latch member pivotal on the drive shaft axis. The latch member is integrally formed to define a follower bracket and tab engageable with the inwardly facing track surface on the programming cam to hold the capstan in engagement with the peripheral traction surface thereof but to allow the capstan to swing away from driving engagement with the traction surface when the follower bracket tab drops into the positioning notches. A spring biasing means is provided by which the follower bracket tab is moved into the notches to latch the programming cam in any one of the indexed positions. Movement out of the notches is effected by solenoid activation.

REFERENCES:
patent: 2937732 (1960-05-01), Brady
patent: 3172099 (1965-03-01), De Puy
patent: 3541890 (1970-11-01), Minkenberg

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