Rotary indexing apparatus

Details Rotary indexing apparatus Rotary indexing apparatus

1991-07-01

1992-08-11

Schwartz, Larry I.

Machine element or mechanism

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

Locking means

279 5, 92122, B23Q 1606

Patent

active

051368960

ABSTRACT:
A rotary indexing apparatus includes a housing and an indexing member in the form of a plate mounted for rotation in the housing. Locating pins are received in apertures in the indexing plate to effectively lock the indexing plate and an affixed spindle in an indexed position. The apparatus also includes a rotary cylinder assembly including a pair of diametrically opposed rotary vanes mounted for reciprocation within a cavity formed in the housing. A partition plate divides the cavity into two separate compartments with each of the compartments divided by the rotary vane into a pair of variable volume chambers. Each of the rotary vanes also includes a piston assembly having an integral indexing pin that may be selectively extended into the apertures in the indexing plate thereby displacing the locating pins. A pressurized fluid source is provided to displace the rotary vanes through a selected angle and thereby index the indexing plate and attached spindle in the desired manner.

REFERENCES:
patent: 912124 (1909-02-01), Hanson
patent: 2796776 (1957-06-01), Locke, Sr. et al.
patent: 3186260 (1965-06-01), Dugas
patent: 3429203 (1969-02-01), Bass

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