Index table assembly

Details Index table assembly Index table assembly

1992-05-29

1992-12-15

Luong, Vinh T.

Machine element or mechanism

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

Locking means

74813R, 74813C, 269 73, B23B 2924, B23Q 104

Patent

active

051706784

ABSTRACT:
An index table structure and method of indexing where the index table structure includes a table top which is angularly rotatable and has a plurality of cam members around the periphery thereof with each including radially outwardly opening cam recess having a bust locating surface for defining a precisely located indexed position of the table top, a dual motor brake structure for driving the table top between angularly separated indexed positions, a shot pin positioned adjacent the periphery of the table top and having a second locating surface adapted to mate with the first locating surface of the cam recess to locate the indexed table top in a precisely indexed position, a fluid cushion structure for providing a fluid cushion for the table top during rotation; in indexing the table top it is rotated in one direction whereby the shot pin is cam actuated into one of the cam recesses to approximately locate the table top in an indexed position and subsequently the table top is rotated in the opposite direction to engage the first and second locating surfaces on the cam recess and shot pin to precisely locate the table top in one of its indexed positions with the shot pin being wedge locked to prevent the table top from rotating out of position.

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Cone Drive, Standard Gear Reduction, Ex-Cell-O Corp., Cone Drive Division.

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