Customized Chuck for Contour Grinding

Northfield Precision Instrument Corporation designs and manufactures precision workholding chucks. "When a customer required a chuck to hold parts to be mounted to a Studer Grinder for contour grinding of special cutting tools, they turned to Northfield," said a company spokesperson.

Northfield's engineers customized the Model 650 chuck to use only one jaw for clamping. A special face mounted "V" block jaw was bolted to the chuck face and picks up the "V" locating surfaces of the special cutting tools. The bolt on the "V" is made of hardened tool steel and is wire cut to finish size.

Only one of the chuck's three jaws is used for clamping by driving the workpiece into the fixed "V" locator. To insure the flat on the moving jaw aligned perfectly with the flats of the tool, an insert was used that allowed the flat to rotate into position, insuring full contact.

Northfield Precision Instrument designs and manufactures accurate air chucks for any lathe, boring machine, grinder or VMC. Models include through-hole, high-speed and quick-change. Chucks are available in SAE or metric, in sizes from 3" (76 mm) to 18" (457 mm). Accuracies of 0.001" to 0.00001" (0.254 m) are guaranteed. Custom workholding chucks and jaws are available and free engineering assistance is offered.

For more information contact:

Northfield Precision Instrument Corp.

P.O. Box 550

Island Park, NY 11558-0550

800-810-2482 / 516-431-1112

info@northfield.com

www.northfield.com