INDEX TABLE


 CONSTRUCTION & OPERATION
When you order a table, the dial plate is bored for the number of stations required, whether even or odd indexing (See Specifications for minimum degrees between stations). Since the two shot pins are 180 degrees apart, odd indexing requires a bushing 180 degrees from each indexing location. Any station or number of stations can be missed by simply removing the cam button of the Dial Plate which corresponds to that station. (Ex. - 3 indexes require 6 station, which could also be used for 2 or 6 indexes).
   The dual shot pins, 180 degrees apart, provide the accuracy of the Dial Plate. Combined with Hydro-Clamp, the top  plate is securely held in location while the work for that station is performed. The hollow steel centerpost (1 1/4" hole) can be used for piping air, oil, or coolant to the fixtures or the work pieces. The Hydro-Lift actually lifts the Dial Plate slightly so that the Index Table can carry a heavy load without dragging.
   The Deceleration Unit will slow down the table just before the final location. This permits smoother indexing and better repeatability, making the table more suitable for larger Dial Plates.

SEQUENCE OF OPERATION
With hydraulic power supplied to the Index Table (500 psi @ 3 gpm), both solenoids should be energized. This puts the table in the main speed. The shot pins are lowered, which actuates the internal valving to allow the hydraulic motor to energize. At the same time, the Hydro-Lift is energized which lifts the Dial Plate clear of the bearing ring. The Dial Plate will now rotate. When the cam button on the edge of the Dial Plate contacts the first limit switch, the deceleration solenoid is de-energized, putting the table in the deceleration mode. Upon rotation to the stop limit switch, the stop solenoid is de-energized also. At this time the shot pins raise, shutting off the hydraulic motor, and the Hydro-Clamp energizes. The Dial Plate clamps down to the bearing ring and the shot pins locate firmly in the bushings, giving the table its positive location. The Index Table remains clamped until the signal is given to start next cycle.