Hardinge HQC Manuals

Installation Instructions for the Hardinge HQCTM Quick-Change Collet System Using the Hardinge Hydraulic Quick-Change Wrench The type of machine and the size of the collet head determines which collet wrench size is used. Install the Hardinge HQCm QuickGhange collet system as follows: 1. lndex the spindle to the normal collet change posi- tion. Jogging the spindle until the keyway is verti- cal allows for an easier collet change reference. 2. Power down the machine and remove the collet Q from the spindle. - NOTE - The hydraulic wrench pin travel limits how far the neck of the collet head is compressed. Do not compress the neck any further than necessary. Set the wrench pin travel as follows: A. Loosen the lock nut on screw " A on the hy- draulic wrench. B. Adjust the screw to limit the closing of collet head neck "B" until it just fits in quick-change collet body "C". The neck is compressed tighter by turning the screw counterclockwise. C. Tighten the lock nut. Make certain that the collet body has a collet head attached before installing it in the spindle. If there is no collet head on the body, mount a head as follows: A. Plug the hydraulic power unit into a properly grounded 110v receptacle. B. Put the collet head on the hydraulic wrench pins. - Warning - Keep clear of the slots on the collet head. Activating the Hydraulic Quick-Change Wrench compresses the neck of the collet head. A pinch point exists when the neck of the collet head is compressed. C. Step on the foot switch to turn ON the hydraulic power unit and compress the neck of the collet head enough to fit in the body. D. Align the three slots of the collet head with the lugs on the body and insert the locking lips of the head into the groove in the body. E. Release the switch and pull the hydraulic wrench from the collet head. Align the keyway in the head with the key in the spindle and insert the body and head as an assembly into the spindle the same as a standard collet. Thread the draw tube to the collet body. Put a piece of stock at least 4 inches [I02 mm] long in the collet. Close the collet to check the chucking force. Adjust the chucking force as needed. - NOTE - Once the collet body is in place, only change the collet head for the size and shape of the stock required for each job. Change the Hardinge HQC" Quick-Change collet heads as follows: 1. lndex the spindle with the Quick-Change collet head to the normal collet change position. Jog the spindle until the spindle keyway is vertical. Power down the machine. 2. Wipe away any chips or oil and clean the pin holes on the face of the collet head. 3. Plug the hydraulic power unit into a properly grounded 110v receptacle. 4. Insert the hydraulic wrench pins into the pin holes. (continued on next page) Form No. B-57 Part No. B -0009500-0057 Litho in U.S.A. August,lW