Indexing work table

Details Indexing work table Indexing work table

B - Operations, Transporting

23

P

29/12

B23P 15/14 (2006.01) B23F 15/06 (2006.01) B23F 23/08 (2006.01) B23F 23/12 (2006.01) B23Q 16/10 (2006.01)

Patent

CA 1192732

ABSTRACT OF THE DISCLOSURE A rotary indexing table having a generally circular top plate rotatably secured to a fixed base structure is dis- closed. An outer race annular ring is connected to the top of the fixed base structure and extends radially over a central bore formed in the top face of the fixed based structure. A first ring of teeth is formed on the circular top plate. A second ring of teeth is formed on the outer race annular ring. Both the first and second rings of teeth face toward the central bore in the fixed base structure. A piston is slidably mounted in the central bore. The piston has a third ring of teeth aligned with the first ring of teeth and a fourth ring of teeth aligned with the second ring of teeth. A method of forming the third and fourth rings of teeth on the piston is also disclosed. The method includes mounting a sine block on a work table. Then fastening a rotary indexing table on the top of the sine block. Next, securing the piston to the top of the rotary indexing table. Then, setting a first predetermined angle on the sine block to fix a first coning angle from the central axis of the piston. This is followed by cutting one ring of concentric teeth on the piston. Then, adjusting the sine block to a second predetermined angle to fix a second coning angle from the cen- tral axis of the piston. Finally, cutting the other ring of concentric teeth on the piston.

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